CN102980523A - Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface - Google Patents
Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface Download PDFInfo
- Publication number
- CN102980523A CN102980523A CN2012105029825A CN201210502982A CN102980523A CN 102980523 A CN102980523 A CN 102980523A CN 2012105029825 A CN2012105029825 A CN 2012105029825A CN 201210502982 A CN201210502982 A CN 201210502982A CN 102980523 A CN102980523 A CN 102980523A
- Authority
- CN
- China
- Prior art keywords
- sphere
- ware
- carrier
- loading
- liquid film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to an experimental device for measuring the thickness of a lubricating liquid film under contact of a spherical surface and another spherical surface. The experimental device comprises a support system, a loading system, a bearing system and an optical measurement system, wherein the loading system comprises a drive mechanism, a loading mechanism and a loading sphere, the bearing system comprises a bearing disc and a bearing disc positioning mechanism, the bearing disc is provided with a concave sphere which is used for bearing the loading sphere, the bearing disc is fixedly arranged when the loading sphere rotates, the bearing disc positioning mechanism is arranged on a work surface and comprises at least one of a horizontal rotating vessel and a vertical rotating vessel, the horizontal rotating vessel is used for driving the bearing disc to rotate around a vertical shaft, the vertical shaft is perpendicular to the work surface and passes through the sphere center of the concave sphere surface of the bearing disc, the vertical rotating vessel is used for driving the bearing disc to rotate around a horizontal shaft, and the horizontal shaft is parallel to the work surface and passes through the sphere center of the concave sphere surface. The experimental device provided by the invention can be used for testing the thickness of a nano-level lubricating liquid film under the contact of spherical surfaces like a bearing and a joint.
Description
Technical field
The present invention relates to a kind of experimental provision of measuring lubricating liquid film thickness, relate in particular to a kind of experimental provision of measuring lubricating liquid film thickness under sphere and the sphere-contact.
Background technology
In mechanical engineering, relate to the place of surface and Surface Contact, except the form of common plane and plane, plane and sphere-contact, also have the situation of a lot of spheres and sphere-contact.In addition, in artificial hip joint system, also there is this form to typical sphere and sphere-contact of joint ball head and manual acetabulum.The thickness of lubricating liquid film is a key factor that affects its friction and wear behavior in two Contact Pair, directly affects the serviceable life of friction pair material, therefore, the thickness measure tool of lubricating liquid film is of great significance.
Take artificial hip joint replacing as example, have large quantities of patients to accept this operative treatment (ratio is about 1/1000) every year in the world wide at present, and this numeral is being cumulative year after year trend.In China, along with the continuous lifting of people to the quality of life demand, increasing coxarthropathy patient selects artificial hip joint replacing.In the artificial hip joint replacing system, " bone dissolving " disease that the wear particle that joint ball head and manual acetabulum rubbing wear produce causes is so that the patient need carry out second operation about 15 years.For this reason, the researchist has developed various experimental facilitiess, the rubbing wear between joint ball head and the manual acetabulum is tested, but the experimental provision that obtains the thickness of lubricating liquid film under this sphere and the sphere-contact pair is not arranged.At present, the measurement of lubricating liquid film thickness is confined to more the situation of plane and plane contact and plane and sphere-contact.For example, notification number is that the Chinese invention patent of CN101709953B discloses a kind of lubricant film thickness measuring instrument, is used for measuring the lubricating liquid film thickness that loads between ball and the disc.Yet the instrument of lubricating liquid film thickness can't be measured the situation of sphere and sphere-contact between this measurement plane and the sphere.
Summary of the invention
In view of this, a kind of experimental provision for lubricating liquid film thickness measuring under sphere and the sphere-contact of exploitation is very necessary.
A kind of experimental provision of measuring lubricating liquid film thickness under sphere and the sphere-contact, it comprises support system, loading system, bearing system and optical measuring system, this support system comprises a work top, this loading system and this bearing system are fixed in this work top, this loading system comprises driving mechanism, load maintainer and loading ball, this driving mechanism is connected with this load maintainer, this driving mechanism is used for that this loading ball is produced and loads the rotation that the ball centre of sphere is the center of circle, this load maintainer is connected with this loading ball, this load maintainer is used for this bearing system being applied the constant load that loads the ball centre of sphere at the rotation process of this loading ball to this loading ball and by this loading ball, this bearing system comprises carrier and carrier detent mechanism, this carrier has concave spherical surface, this concave spherical surface is used for this loading ball of carrying and this carrier is fixedly installed when loading the ball rotation, this carrier detent mechanism is arranged at this work top, comprise at least one that horizontally rotates in ware and the vertical rotary ware, this horizontally rotates ware and is used for driving this carrier around vertical axis revolving, this Z-axis is perpendicular to the centre of sphere of the concave spherical surface of this work top and this carrier of mistake, this vertical rotary ware is used for driving this carrier around horizontal rotational shaft, and this transverse axis is parallel to this work top and crosses the centre of sphere of this concave spherical surface.
Beneficial effect of the present invention is: the thickness of lubricating liquid film is a very important factor that affects the friction pair friction and wear behavior, it directly affects the serviceable life of friction pair material, be confined to plane and plane contact and plane and this difficult problem of sphere-contact in the past lubricating liquid film thickness measure more, when experimental provision provided by the invention realizes loading ball loading and rotation by loading system and drive system, correspondence has designed direction adjustable carrying disk-positioning mechanism, thereby the maximum useful area that has utilized concave spherical surface has overcome the problems such as cost increase of bringing because of concave spherical surface plated film difficulty.This experimental provision satisfies the demand of lubricating liquid film thickness measuring under sphere and the sphere-contact, can measure the thickness of nanoscale lubricating liquid film under sphere and the sphere-contact.
Description of drawings
Fig. 1 is the front elevational schematic of embodiment of the invention experimental provision.
Fig. 2 is that synoptic diagram is looked on the left side of embodiment of the invention experimental provision.
Fig. 3 is the front elevational schematic of the loading system of embodiment of the invention experimental provision.
Fig. 4 is the partial schematic sectional view of the loading system of embodiment of the invention experimental provision.
Fig. 5 is the partial schematic sectional view of the bearing system of embodiment of the invention experimental provision.
Fig. 6 is the one-piece construction synoptic diagram of embodiment of the invention experimental provision.
The main element symbol description
| Experimental provision | 1 |
| |
10 |
| Loading system | 20 |
| Bearing system | 30 |
| Optical measuring system | 40 |
| Temperature control system | 50 |
| Automatic control system | 60 |
| Work top | 102 |
| Frame | 104 |
| Adjusting pad | 106 |
| |
200 |
| |
202 |
| |
204 |
| |
206 |
| |
208 |
| |
210 |
| Arc |
212 |
| |
214 |
| The |
216 |
| The |
218 |
| |
220 |
| Swivel |
222 |
| |
224 |
| |
226 |
| |
228 |
| Fixed |
230 |
| |
232 |
| Adjusting screw(rod) | 234 |
| |
236 |
| |
238，314 |
| |
240 |
| |
242 |
| |
302 |
| Concave |
306 |
| Horizontally |
308 |
| The vertical |
310 |
| |
312 |
| Lock-screw | 316 |
| O- |
318 |
| Optical microscope | 402 |
| Light source | 404 |
| The microscope |
406 |
| Industrial computer | 602 |
| Control box | 604 |
| Display | 606 |
| ? | ? |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the experimental provision of lubricating liquid film thickness under measurement sphere provided by the invention and the sphere-contact is described in further detail.
See also Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of experimental provision 1 of measuring lubricating liquid film thickness under sphere and the sphere-contact, comprises support system 10, loading system 20, bearing system 30 and optical measuring system 40.This experimental provision 1 can be used for measuring the thickness of lubricating liquid film under sphere and the sphere-contact.
This support system 10 comprises a work top 102, is used for supporting and fixing this loading system 20 and this bearing system 30.In addition, this support system 10 also can comprise frame 104 and adjusting pad 106.This frame 104 is used for supporting this work top 102, and this adjusting pad 106 is arranged on four angles of these frame 104 bottoms, is used for the level of this work top 102 is adjusted and damping, to strengthen stability.
See also Fig. 3 and Fig. 4, this loading system 20 comprises driving mechanism, load maintainer 228 and loads ball 202.
It is the rotation in the center of circle that this driving mechanism is used for making this loading ball 202 produce to load ball 202 centre ofs sphere, this load maintainer 228 is used at this rotation process that loads ball 202 this loading ball 202, and by 202 pairs of these bearing systems of this loading ball, applied the constant load that loads ball 202 centre ofs sphere.The rotation direction of this loading ball 202 is not limit, for example, can be only along on the plane of this loading direction with corner less than 180 ° of reciprocating rotations, also can be along on the Different Plane of this loading direction with corner less than 180 ° of reciprocating rotations, also can be in addition along on the plane of this loading direction with corner less than 180 ° of reciprocating rotations in continuous 360 ° of rotations take this loading direction as axle, in addition also can only continuous 360 ° of rotations take this loading direction as axle.
This driving mechanism and this load maintainer 228 can be separate mechanism, only need act on simultaneously this loading ball 202 and get final product.For example, this load maintainer 228 can be connected with this loading ball 202 from different directions with this driving mechanism, thereby respectively to these loading ball 202 loaded load and drive this loading ball 202 and rotate.
This driving mechanism also can be connected with this load maintainer 228, and this load maintainer 228 is connected with this loading ball 202, makes this driving mechanism drive these loading balls 202 by driving this load maintainer 228.
When only take this loading direction as axle continuous 360 ° when rotating in this loading ball 202, this driving mechanism can comprise a servomotor 204, be used for rotating by bearing output, this bearing is connected with these load maintainer 228 1 ends, these load maintainer 228 other ends are connected with this loading ball 202, and this driving mechanism drives this load maintainer 228 and is rotated take this loading direction as axle in the lump with this loading ball 202.
Preferably, this driving mechanism is tilting mechanism 200, and this load maintainer 228 is connected between this tilting mechanism 200 and this loading ball 202.This tilting mechanism 200 is connected with this load maintainer 228, the centre of sphere that is used for that this load maintainer 228 is produced and loads ball 202 is the center of circle and swing at grade, this load maintainer 228 drives this and loads ball 202, make this loading ball 202 take the centre of sphere as the center of circle reciprocating rotation at grade.The frequency of the swing of this tilting mechanism 200 is identical with the rotational frequency that this loads ball 202, and the pivot angle of this tilting mechanism 200 is identical with the rotational angle that this loads ball 202.This tilting mechanism 200 supports by this support system 10, and this tilting mechanism 200 comprises servomotor 204, turning block 206, linkage assembly 208, slide block 210 and arc guide rail 212.This servomotor 204 is used for driving this turning block 206 and rotates, and drives these slide blocks 210 by this linkage assembly 208 and do along this arc guide rail 212 and reciprocatingly slide.This turning block 206 is connected with this servomotor 204, driving by servomotor 204 214 is rotated around the shaft, rotating shaft 214 is vertical with the plane at arc guide rail 212 places, and this turning block 206 has an outer surface that is parallel to this plane, arc guide rail 212 place.These linkage assembly 208 1 ends are arranged on this turning block 206, and the other end is arranged on this slide block 210.Be specially, these linkage assembly 208 1 ends are connected to the primary importance of this outer surface of this turning block 206 by the first axle 216, and rotating shaft 214 intervals of this primary importance and this turning block 206 arrange, the other end is connected to the second place of this slide block 210 by the second axle 218, such as the center of slide block 210.This slide block 210 and this arc guide rail 212 are for being slidingly connected, and for example, this slide block 210 is set on this arc guide rail 212, can slide along this arc guide rail 212.This linkage assembly 208 is rigid rod, when this turning block 206 rotates, this linkage assembly 208 remains unchanged the distance between the second place of the primary importance of this turning block 206 and this slide block 210, because this primary importance not in the rotating shaft 214 of this turning block 206, therefore can make this slide block 210 do along this arc guide rail 212 under the drive of this linkage assembly 208 and reciprocatingly slide.At work, the calibration of the swing of tilting mechanism 200 is 0 to 6Hz, and pivot angle is preferably ± 20 °, and correspondingly, the rotational frequency that loads ball 202 is preferably 0 to 6Hz, corner is preferably ± and 20 °.Aspect fixed support, this servomotor 204 can directly be fixed on this work top 102.This arc guide rail 212 can be fixed on this work top 102 by a guide rail bracket 226.The plane at the circular arc place of this arc guide rail 212 is preferably perpendicular to this work top 102, and more preferably, this work top 102 is horizontally disposed with, and the plane at the circular arc place of this arc guide rail 212 vertically arranges.
Further, this linkage assembly 208 can be the rigid rod of adjustable in length, thus can to this slide block 210 on this arc guide rail 212 sliding distance and the pivot angle of load maintainer 228 and the rotational angle that loads ball 202 regulate.For example, this linkage assembly 208 can be the mechanism that screw rod 220 and swivel nut 222 form, entire length by this linkage assembly 208 is regulated in the rotation of screw rod 220 also can comprise set nut 238 in addition, is used for after adjusting to appropriate length locking between this screw rod 220 and the swivel nut 222.
Further, this tilting mechanism 200 can further comprise reductor 224, and this servomotor 204 is connected with this turning block 206 by this reductor 224, to reduce rotating speed, increases moment of torsion.
The length direction of this load maintainer 228 is along the radial direction setting of the circular arc of this arc guide rail 212, the length of this load maintainer 228 is substantially equal to the radius of these arc guide rail 212 place circular arcs, be used in swing process this loading ball 202 being applied one along this arc radius direction, cross the constant load that loads ball 202 centre ofs sphere, and load the carrier 302 that ball 202 will this constant load applying arrives this bearing system 30 by this.This load maintainer 228 comprises fixed bar 230, spring 232, adjusting screw(rod) 234, Coupling Shaft 236, pressure transducer 240 and the coupling shaft 242 of coaxial setting.This fixed bar 230 axially along the radial direction setting of the circular arc of this arc guide rail 212, this spring 232 is sheathed on outside this fixed bar 230, this adjusting screw(rod) 234 comprises the first end with unthreaded hole and has the second end of threaded hole, these fixed bar 230 1 ends are fixedly connected with this slide block 210, and the other end inserts the first end of this adjusting screw(rod) 234.Spring 232 1 ends and this slide block 210 lean, and the first end of the other end and this adjusting screw(rod) 234 leans.This first end of this adjusting screw(rod) 234 is set in outside this fixed bar 230, and this second end is set in outside this Coupling Shaft 236.This Coupling Shaft 236 has external thread, and an end and this adjusting screw(rod) 234 are threaded connection, and the other end and this pressure transducer 240 lean.This pressure transducer 240 is arranged between this Coupling Shaft 236 and this coupling shaft 242.These coupling shaft 242 1 ends are connected with this loading ball 202, the other end inserts in this pressure transducer 240 and this Coupling Shaft 236, and by step this pressure transducer 240 is carried out spacing, thereby make the power from this coupling shaft 242 be loaded on this pressure transducer 240 and this loading ball 202.
This load maintainer 228 also can further comprise set nut 238, and this set nut 238 is sheathed on the second end of these Coupling Shaft 236 outer and close these adjusting screw(rod)s 234, is threaded connection with this Coupling Shaft 236.When rotating to appropriate level, this adjusting screw(rod) 234 can lock by 238 pairs of these adjusting screw(rod)s 234 of this set nut and this Coupling Shaft 236.
The centre of sphere of this loading ball 202 is arranged at the center of circle of these arc guide rail 212 place circular arcs, this loading ball 202 and these load maintainer 228 relative being fixedly connected with, thereby under the effect of this load maintainer 228, be subject to along the load of this arc radius direction, and under the drive of this tilting mechanism 200 reciprocating rotation.Be specially, this loading ball 202 is fixedly connected with the coupling shaft 242 of this load maintainer 228.For example, can be provided with internal thread in this loading ball 202, this coupling shaft 242 can be provided with supporting external thread, and this loads ball 202 and is connected with external thread by this internal thread with this coupling shaft 242.
In use, by screwing this adjusting screw(rod) 234, can regulate the entire length of this adjusting screw(rod) 234 and this Coupling Shaft 236, because an end of this load maintainer 228 connects this loading ball 202, and should load ball 202 by these bearing system 30 carryings and spacing, can compress this spring 232 by screwing of adjusting screw(rod) 234, thereby produce force of compression by spring 232 this be loaded ball 202 imposed loads, the size of the load of loading is presented on the instrument by pressure transducer 240.This spring 232 can be high precision spring 232, makes loading accuracy can reach 5 ‰, and the load of loading is 0 to 1000N.
See also Fig. 5, this bearing system 30 comprises carrier 302 and fixture.This carrier 302 is used for carrying, and this loads ball 202, is fixedly installed when this loadings ball 202 rotates, and forms to load the static Contact Pair of ball 202 motions and carrier 302, and the material of carrier 302 is light transmissive material, such as glass or quartz etc.This carrier 302 has a concave spherical surface 306 that is coated with semi-transparent semi-reflecting film, and this loads ball 202 to be used for carrying.This semi-transparent semi-reflecting film can be the chromium film.During work, this loading ball 202 heads into this carrier 302, is resisted against this concave spherical surface 306.The radius of this concave spherical surface 306 is preferably more than the radius of this loading ball 202 more than or equal to this radius that loads ball 202.When work, be added with lubricating fluid between the semi-transparent semi-reflecting film on this concave spherical surface 306 and this loading ball 202.This fixture is used for this carrier 302 is fixed in the work top 102 of this support system 10.For example, this fixture can be the retaining element commonly used such as screw, bolt or buckle, as long as finish the fixing of this carrier 302.This work top 102 can have through hole, and the bottom of this carrier 302 arranges with respect to this through hole, thereby can directly be oppositely arranged by the object lens of this through hole and optical microscope 402.
In a preferred embodiment, in order to utilize fully the semi-transparent semi-reflecting film on this concave spherical surface 306, this bearing system 30 also can further comprise the carrier detent mechanism, is used for making this carrier 302 around transverse axis (be multiple operation table top 102 axially) rotation and/or around Z-axis (namely perpendicular to work top 102 axially) rotation.This carrier detent mechanism optionally comprises at least one that horizontally rotates in ware 308 and the vertical rotary ware 310.This carrier detent mechanism can be arranged at this work top 102.
This horizontally rotates ware 308 and is arranged at this carrier 302 peripheries, is used for driving this carrier 302 around this vertical axis revolving, and this Z-axis is perpendicular to the centre of sphere of the concave spherical surface 306 of this work top 102 and this carrier 302 of mistake.This horizontally rotates ware 308 can be loop configuration, and axis is this Z-axis, and crosses the centre of sphere of the concave spherical surface 306 of this carrier 302.This horizontally rotates ware 308 can be around this vertical axis revolving.When this carrier detent mechanism only comprises when horizontally rotating ware 308, this horizontally rotates ware 308 and directly is sheathed on outside this carrier 302, be fixedly connected with this carrier 302, when this horizontally rotates ware 308 around this vertical axis revolving, this carrier 302 is driven together rotation, thereby realizes that the concave spherical surface 306 of this carrier 302 walks around the vertical axis revolving of the centre of sphere.The anglec of rotation can be ± 180 °.This horizontally rotates ware 308 can be fixed in this work top 102 by this fixture.
This vertical rotary ware 310 is arranged at this carrier 302 peripheries, is used for driving this carrier 302 around this horizontal rotational shaft, and this transverse axis is parallel to this work top 102 and crosses the centre of sphere of this concave spherical surface 306.This vertical rotary ware 310 can be loop configuration, can walk around the centre of sphere of this concave spherical surface 306 and be parallel to the horizontal rotational shaft of work top 102.When this carrier detent mechanism only comprised vertical rotary ware 310, this vertical rotary ware 310 can directly be fixedly connected with this carrier 302, was fixedly connected with as directly being sheathed on outside this carrier 302 and with this carrier 302.When this vertical rotary ware 310 when this transverse axis rotates, this carrier 302 is driven together and rotates, thereby realizes that the concave spherical surface 306 of this carrier 302 walks around the horizontal rotational shaft of the centre of sphere.The anglec of rotation can be ± 20 °.This vertical rotary ware 310 can be fixed in this work top 102 by this fixture.Be appreciated that this horizontally rotates ware 308 and does not stop all that with this vertical rotary ware 310 bottom of this carrier 302 and the object lens of this optical microscope 402 directly are oppositely arranged.
More preferably, this carrier detent mechanism had not only comprised and horizontally rotates ware 308 but also comprise vertical rotary ware 310, this moment, this horizontally rotated ware 308 and this vertical rotary ware 310 is loop configuration, and coaxial setting, this horizontally rotates ware 308 and is sheathed on outside this vertical rotary ware 310, and this vertical rotary ware 310 is sheathed on outside this carrier 302 and with this carrier 302 and is fixedly connected with.The medial surface that the lateral surface of this vertical rotary ware 310 and this horizontally rotate ware 308 is sphere, and cooperatively interact, this vertical rotary ware 310 is horizontally rotated between the ware 308 with this is combined with the ball pivot form, namely form spherical hinge structure, the centre of sphere that the lateral surface of this vertical rotary ware 310 and this horizontally rotate the medial surface of ware 308 is the centre of sphere of this concave spherical surface 306, thereby can make this vertical rotary ware 310 horizontally rotate rotation in the ware 308 at this, and make this vertical rotary ware 310 around this horizontal rotational shaft.
In addition, can rotate easily and locate for making this vertical rotary ware 310, and make the ware 308 that horizontally rotates in the outside drive 310 rotations of inboard vertical rotary ware, this carrier detent mechanism can further comprise adjuster bar 312.This horizontally rotates ware 308 and has through hole along this transverse axis, and this adjuster bar 312 inserts these through holes, and is fixedly connected with this vertical rotary ware 310.During use, can drive this vertical rotary ware 310 and rotate around this transverse axis by rotating this adjuster bar 312, adjust to and by set nut 314 this adjuster bar 312 and this to be horizontally rotated ware 308 after the proper angle and mutually lock.When this horizontally rotated ware 308 rotation, this adjuster bar 312 drove inboard this vertical rotary ware 310 and carrier 302 and together rotates.This work top 102 can have manhole, and the axis of manhole overlaps with this Z-axis, and this horizontally rotates ware 308 bottoms and inserts in this manhole, and spacing by step, thereby realizes that this horizontally rotates the location of ware 308.During use, rotate this and horizontally rotate ware 308 and can this be horizontally rotated ware 308 by lock-screw 316 after the proper angle and be fixed on this work top 102.
It is very difficult to form uniformly semi-transparent semi-reflecting film at this concave spherical surface 306, and the slip meeting between loading ball 202 and the carrier 302 is to the semi-transparent semi-reflecting film generation damage of concave spherical surface 306, and then affect the test of lubricating fluid thickness, and microscope only need observe the zone that loads the loading position place of ball 202 on carrier 302 can record the thickness of lubricating liquid film when observation, therefore by this carrier detent mechanism carrier 302 is adjusted in the position of level and/or vertical direction, change the loading position of loading ball 202 on carrier 302 semi-transparent semi-reflecting films, the semi-transparent semi-reflecting film of carrier 302 is utilized.
Further, also can be provided with O-ring seal 318 between this carrier 302 and this vertical rotary ware 310, to prevent the lubricating fluid seepage.
This optical measuring system 40 is used for this loading ball 202 is measured at the loading ball 202 at the loading position place on the concave spherical surface 306 of this carrier 302 and the thickness of the lubricating liquid film between the carrier 302.This optical measuring system 40 comprises optical microscope 402, light source 404 and microscope mobile platform 406.This light source 404 is arranged near this optical microscope 402.This optical microscope 402 is for detection of a pair of coherent light beam.The bottom of the object lens of this optical microscope 402 and this carrier 302 is oppositely arranged, and when this load maintainer 228 vertically arranged, this optical microscope 402 stands upside down was arranged at this work top 102 times.This microscope mobile platform 406 is used for fixing this optical microscope 402 and the observation station of this optical microscope 402 being finely tuned, and during work, the observation station of this microscope 402 is transferred to the loading position of this loading ball 202 in the concave spherical surface 306 of this carrier 302.
This optical measuring system 40 is utilized relative light intensity interference technique measuring principle, realize the thickness test of nanoscale lubricating liquid film in sphere and the sphere-contact situation, concrete principle is: the incident light that sends from this light source 404 becomes monochromatic light behind the optical filter of optical microscope, be divided into two bundles after arriving the semi-transparent semi-reflecting film that plates on carrier 302 surfaces, a branch of from the directly reflection of semi-transparent semi-reflecting film surface, another bundle sees through semi-transparent semi-reflecting film and lubricating liquid film, after loading ball 202 surface reflections again by lubricating liquid film and semi-transparent semi-reflecting film, with a pair of coherent light beam of front a branch of formation.Coherent light beam is received by CCD by the object lens of this optical microscope 402, obtains interference image at graphoscope after opto-electronic conversion, and the thickness of lubricating liquid film generates distribution curve after being calculated by software, and shows at terminal.
See also Fig. 6, for under different temperatures, measuring the thickness of this lubricating liquid film, this experimental provision 1 can further comprise temperature control system 50, comprise hot-water circulation pipe and thermopair, this thermopair is arranged on this carrier 302 surfaces, this this carrier 302 of hot water circulation device process, thus the lubricating liquid film temperature in this carrier 302 are regulated.In the work, the lubricating liquid film temperature at 20 ℃ to 37 ℃, can reach 100 ℃ preferably.
This experimental provision 1 can further comprise automatic control system 60, realizes the motion to tilting mechanism 200, and such as hunting frequency, the automatic control of pendulum angle and duration of oscillation comprises industrial computer 602, control box 604 and display 606.Control box 604 is equipped with control switch, startup, stop button, relay indicating light and pressure display screen, industrial computer 602 can be according to test needs expansion board clamping and software programming, can finish experiments such as the control of rotational frequency and the analyses of lubricating liquid film thickness measurement data.
The nanoscale lubricating fluid thickness that this experimental provision can be used under the sphere such as bearing, joint and the sphere-contact is measured, study under various conditions formation and the failure regularity of lubricating film, to further improving the film lubrication theory, promote that tribology was of great significance with intersecting of Other subjects such as physics, chemistry, materialogies.Simultaneously, this experimental provision is expected to the friction, lubrication performance at bulb in the hip joint-acetabular bone interface is tested, to the generation of this interface wear particle of further minimizing, improve the life-span of articular prosthesis and articular prosthesis is optimized and be designed with important using value.
In addition, those skilled in the art also can do other variations in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. experimental provision of measuring lubricating liquid film thickness under sphere and the sphere-contact, it comprises support system, loading system, bearing system and optical measuring system, this support system comprises a work top, this loading system and this bearing system are fixed in this work top, it is characterized in that, this loading system comprises driving mechanism, load maintainer and loading ball, this driving mechanism is used for that this loading ball is produced and loads the rotation that the ball centre of sphere is the center of circle, this load maintainer is used for this bearing system being applied the constant load that loads the ball centre of sphere at the rotation process of this loading ball to this loading ball and by this loading ball, this bearing system comprises carrier, fixture and carrier detent mechanism, this carrier has concave spherical surface, this concave spherical surface is used for this loading ball of carrying and this carrier is fixedly installed when loading the ball rotation, this carrier detent mechanism is arranged at this work top, comprise at least one that horizontally rotates in ware and the vertical rotary ware, this horizontally rotates ware and is used for driving this carrier around vertical axis revolving, this Z-axis is perpendicular to the centre of sphere of the concave spherical surface of this work top and this carrier of mistake, this vertical rotary ware is used for driving this carrier around horizontal rotational shaft, and this transverse axis is parallel to this work top and crosses the centre of sphere of this concave spherical surface.
2. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that this horizontally rotates ware is loop configuration, directly is sheathed on outside this carrier and with this carrier to be fixedly connected with.
3. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that this anglec of rotation that horizontally rotates ware is ± 180 °.
4. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that this vertical rotary ware is loop configuration, directly is sheathed on outside this carrier and with this carrier to be fixedly connected with.
5. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that the anglec of rotation of this vertical rotary ware is ± 20 °.
6. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact, it is characterized in that, this carrier detent mechanism comprises and horizontally rotates ware, vertical rotary ware and adjuster bar, this horizontally rotates ware and this vertical rotary ware is loop configuration, and coaxial setting, this horizontally rotates ware and is sheathed on outside this vertical rotary ware, this vertical rotary ware is sheathed on outside this carrier and with this carrier and is fixedly connected with, the medial surface that the lateral surface of this vertical rotary ware and this horizontally rotate ware is the sphere that cooperatively interacts, this vertical rotary ware is horizontally rotated between the ware with this is combined with the ball pivot form, the centre of sphere that the lateral surface of this vertical rotary ware and this horizontally rotate the medial surface of ware is the centre of sphere of this concave spherical surface, this horizontally rotates ware and has through hole along this transverse axis, this adjuster bar inserts this through hole, and is fixedly connected with this vertical rotary ware.
7. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that,
This driving mechanism is tilting mechanism, this tilting mechanism comprises servomotor, turning block, linkage assembly, slide block and arc guide rail, the plane at the circular arc place of this arc guide rail is perpendicular to this work top, this slide block and this arc guide rail are for being slidingly connected, this linkage assembly one end is arranged on this turning block, the other end is arranged on this slide block, and this servomotor be used for to drive this turning block and rotates, and drives this slide block by this linkage assembly and do along this arc guide rail and reciprocatingly slide;
This load maintainer comprises the fixed bar of coaxial setting, spring, adjusting screw(rod), Coupling Shaft, pressure transducer, coupling shaft and set nut, this spring housing is located at outside this fixed bar, this adjusting screw(rod) comprises the first end with unthreaded hole and has the second end of threaded hole, this fixed bar one end is fixedly connected with this slide block, the other end inserts the first end of this adjusting screw(rod), the second end of this adjusting screw(rod) is set in outside this Coupling Shaft and with this Coupling Shaft and is threaded connection, one end and this slide block of this spring lean, the first end of the other end and this adjusting screw(rod) leans, this pressure transducer is arranged between this Coupling Shaft and this coupling shaft, this coupling shaft is connected with this loading ball, the centre of sphere of this loading ball is arranged at the center of circle of this arc guide rail place circular arc, this set nut is sheathed on the second end of outer and close this adjusting screw(rod) of this Coupling Shaft, is used for this adjusting screw(rod) and this Coupling Shaft are locked.
8. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 7 and the sphere-contact is characterized in that this linkage assembly is the rigid rod of adjustable in length.
9. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact, it is characterized in that, this optical measuring system comprises optical microscope, light source and microscope mobile platform, this light source is arranged near this optical microscope, the object lens of this optical microscope and the bottom of this carrier are oppositely arranged, and this microscope mobile platform is used for fixing this optical microscope and the observation station of this optical microscope being finely tuned.
10. the experimental provision of lubricating liquid film thickness under measurement sphere as claimed in claim 1 and the sphere-contact is characterized in that, further comprises temperature control system and automatic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502982.5A CN102980523B (en) | 2012-11-30 | 2012-11-30 | Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502982.5A CN102980523B (en) | 2012-11-30 | 2012-11-30 | Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102980523A true CN102980523A (en) | 2013-03-20 |
| CN102980523B CN102980523B (en) | 2015-06-24 |
Family
ID=47854765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210502982.5A Expired - Fee Related CN102980523B (en) | 2012-11-30 | 2012-11-30 | Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102980523B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI475188B (en) * | 2013-11-29 | 2015-03-01 | Ind Tech Res Inst | Multi-link rotation mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151439Y (en) * | 1992-09-29 | 1993-12-29 | 清华大学 | Pachometer for lubricating film |
| US6031615A (en) * | 1997-09-22 | 2000-02-29 | Candela Instruments | System and method for simultaneously measuring lubricant thickness and degradation, thin film thickness and wear, and surface roughness |
| US20030160973A1 (en) * | 2002-02-27 | 2003-08-28 | Kei Nakayama | Bearing with oil film thickness measuring device |
| CN101158577A (en) * | 2007-11-19 | 2008-04-09 | 天津理工大学 | Method and apparatus for measuring static pressure film thickness |
| CN101290209A (en) * | 2008-05-23 | 2008-10-22 | 中国矿业大学 | Heavy pressure micro-gap lubrication test machine |
| CN101329167A (en) * | 2008-07-11 | 2008-12-24 | 西安交通大学 | Dynamic measurement method of slide bearing lubricating film and fiber optic sensor for measurement |
| CN101709953A (en) * | 2009-12-03 | 2010-05-19 | 清华大学 | Lubricant film thickness measuring instrument |
| WO2012006613A2 (en) * | 2010-07-09 | 2012-01-12 | Tribis Engineering, Inc. | Tribometer |
| CN202204476U (en) * | 2011-09-07 | 2012-04-25 | 上海大学 | Constant-inclination angle surface contact film lubrication measuring apparatus |
-
2012
- 2012-11-30 CN CN201210502982.5A patent/CN102980523B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151439Y (en) * | 1992-09-29 | 1993-12-29 | 清华大学 | Pachometer for lubricating film |
| US6031615A (en) * | 1997-09-22 | 2000-02-29 | Candela Instruments | System and method for simultaneously measuring lubricant thickness and degradation, thin film thickness and wear, and surface roughness |
| US20030160973A1 (en) * | 2002-02-27 | 2003-08-28 | Kei Nakayama | Bearing with oil film thickness measuring device |
| CN101158577A (en) * | 2007-11-19 | 2008-04-09 | 天津理工大学 | Method and apparatus for measuring static pressure film thickness |
| CN101290209A (en) * | 2008-05-23 | 2008-10-22 | 中国矿业大学 | Heavy pressure micro-gap lubrication test machine |
| CN101329167A (en) * | 2008-07-11 | 2008-12-24 | 西安交通大学 | Dynamic measurement method of slide bearing lubricating film and fiber optic sensor for measurement |
| CN101709953A (en) * | 2009-12-03 | 2010-05-19 | 清华大学 | Lubricant film thickness measuring instrument |
| WO2012006613A2 (en) * | 2010-07-09 | 2012-01-12 | Tribis Engineering, Inc. | Tribometer |
| CN202204476U (en) * | 2011-09-07 | 2012-04-25 | 上海大学 | Constant-inclination angle surface contact film lubrication measuring apparatus |
Non-Patent Citations (2)
| Title |
|---|
| LIRAN MA等: "Investigation of the film formation mechanism of oil-in-water (O/W) emulsions", 《THE ROYAL SOCIETY OF CHEMISTRY》 * |
| 张洪玉等: "纳米级润滑膜分子排列取向的拉曼光谱表征技术", 《物理学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI475188B (en) * | 2013-11-29 | 2015-03-01 | Ind Tech Res Inst | Multi-link rotation mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102980523B (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102997855B (en) | Experiment device for measuring thickness of lubricating liquid film under contact between spherical surfaces | |
| CN101458068B (en) | Miniature guide bearing lubricating oil film measuring apparatus and guide regulating method thereof | |
| JP2010515025A (en) | Carousel with liquid-filled cell for optical inspection of ophthalmic lenses | |
| CN102303224A (en) | Device and method for integrally machining and measuring optical parts | |
| CN102384730B (en) | Device for measuring lasers with small angle and rotating shaft system | |
| WO2023004778A1 (en) | Friction wear testing device | |
| Clothier et al. | A determination of the volt | |
| CN102717305A (en) | In-situ measurement method for optical free-form surface | |
| CN102980523B (en) | Experimental device for measuring thickness of lubricating liquid film under contact of spherical surface and another spherical surface | |
| CN103968796B (en) | Repdocutbility optical component surface shape high detects support meanss | |
| CN109540782A (en) | A kind of pin disk-type friction abrasion tester | |
| CN105241391B (en) | A kind of device for the recessed aspherical mirror type accuracy interferometric detection of heavy caliber | |
| US2381449A (en) | Spherical surface generating device | |
| CN203572451U (en) | Vertical shaft type laser small-angle measuring apparatus | |
| CN107144228B (en) | Device and method for adjusting lubricating oil film measurement inclination angle of miniature slide block bearing | |
| Ren et al. | Correlation between polishing pad’s properties and material removal during full‐aperture polishing | |
| CN112763191B (en) | Letter detection system and switching device thereof | |
| CN113199238B (en) | Six-degree-of-freedom micron-order coaxiality adjusting device and adjusting method | |
| CN213580022U (en) | Device for adjusting levelness and eccentricity of part | |
| CN208537168U (en) | Angular contact bearing swings behavior in service test macro | |
| CN203572449U (en) | Horizontal shaft type laser small-angle measuring apparatus | |
| Stoup et al. | A novel high accuracy micrometer for the measurement of diameter | |
| CN102681129B (en) | Optical panel bracket with multi-degree-of-freedom adjustment capacity | |
| CN113043168A (en) | Crankshaft journal grinding size measuring device | |
| CN104567731A (en) | Vertical shaft type laser small-angle measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20171130 |