CN104444696A - Elevator system with adaptive damping force damping device - Google Patents
Elevator system with adaptive damping force damping device Download PDFInfo
- Publication number
- CN104444696A CN104444696A CN201410767660.2A CN201410767660A CN104444696A CN 104444696 A CN104444696 A CN 104444696A CN 201410767660 A CN201410767660 A CN 201410767660A CN 104444696 A CN104444696 A CN 104444696A
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- Prior art keywords
- elevator
- damping
- buffering
- elevator car
- comformability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
Abstract
The invention discloses an elevator system with an adaptive damping force damping device. The system comprises an elevator compartment body and a magneto-rheological damping assembly, wherein the magneto-rheological damping assembly generates damping to the elevator compartment body in the process of an elevator buffering assembly elastically compressed by the elevator compartment body. The magneto-rheological damping component of the elevator system with an adaptive damping-forced damping device intervenes damping in the process of buffering assembly compressing to form a progressive damp-buffering mode, a parameter of magneto-rheological fluid is adjusted according to the parameter of the falling of the elevator compartment body, and damping force is increased gradually in the process of elevator compartment grounding and buffering, and the increasing process is quicker and more gentle than that of a common spring, buffering damp is generated in the last phase to achieve comfort of descending buffering and enough variable damping force. Thereby, compared with the existing technology, buffering stroke and progressive gradually varied damp process can be increased. Spring with small elastic coefficient can be adopted in the scheme. Variable damp in late period intervening to elasticity buffering in earlier period is suitable for applying to highly speed elevators. The elevator system with an adaptive damping-forced safety device has the effect of dynamic application at any time.
Description
Technical field
The present invention relates to a kind of special equipment, special type relates to a kind of cage type elevator with safety system.
Background technology
Cage type elevator is a kind of vehicle solving vertical transport, is closely connected with daily life; Existing cage type elevator, primarily of formations such as towing machine, control housing, elevator car, guide rails, realizes uplink and downlink comparatively rapidly; In order to realize uplink and downlink and install relevant device, use the place meeting type of construction elevators hoistway of cage type elevator at building or other, to realize trouble-free operation.
The uplink and downlink of cage type elevator are generally realized by mechanical force traction, structure is comparatively complicated, due to environment for use, cycle and the problem such as ageing equipment, quality, elevator elevator car all can be caused to drop without when constraint or finite constraint, there is comparatively serious safety problem.In prior art, cause serious danger in order to solve by (directly dropping to shaft bottom) at the bottom of elevator car rigid touch to occupant, shock absorber is set at shaft bottom; Be hydraulic cushion for express elevator shock absorber, slower elevators is then generally adopted to the structure of recoil spring, and so consider the mainly elasticity modulus of spring, the relation between stroke and elevator car, therefore, express elevator then can not adopt the spring that elasticity modulus is larger, otherwise have at the bottom of obvious rigid touch and feel, thus cause the accident; Importantly, above-mentioned buffer structure could not have comformability according to the whereabouts of elevator car, therefore cannot cushion according to situation about falling.
Therefore, need to improve existing elevator cushion structure, in buffering course when the improper tactile end occurs elevator car, dumping force comformability goes forward one by one increase, and the dumping force later stage increased participates in, realize the ride comfort of downstream buffer and there is enough dumping forces gone forward one by one, therefore the elasticity modulus of cushion stroke and reduction spring can compared with prior art be increased, the safety performance of hoisting elevator.
Summary of the invention
In view of this, object of the present invention provides a kind of elevator device with comformability damps device, in buffering course when the improper tactile end occurs elevator car, dumping force comformability goes forward one by one increase, and the dumping force later stage increased participates in, realize the ride comfort of downstream buffer and there is enough dumping forces gone forward one by one, therefore the elasticity modulus of cushion stroke and reduction spring can compared with prior art be increased, the safety performance of hoisting elevator.
The elevator device with comformability damps device of the present invention, comprises elevator car and elevator car is formed to the magnetorheological damping assembly of damping in the Buffer Unit of elevator is by elevator car elastic compression process;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit, for providing power supply for magnet coil;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command.
Further, the piston rod that described magnetorheological damping body comprises dash plate, cylinder body, damping piston and is fixedly connected with damping piston, be magnetic flow liquid in described cylinder body, damping piston has damping hole, described piston rod engages with dash plate in the Buffer Unit of elevator is by elevator car compression process, forms damping by damping piston to dash plate; Described magnet coil is positioned at around cylinder body, and described dash plate is just to bottom elevator car.
Further, relatively with piston rod on described dash plate, be provided with axially directed mode can be coated at the orienting sleeve of piston rod;
Further, described orienting sleeve is arranged at dash plate by a pedestal is integrally formed, and described pedestal has the contact end face being positioned at orienting sleeve and engaging with piston rod tip contact;
Further, described dash plate is used for arranging pedestal place and thickeies process, and is formed by the pedestal successively upwards structure that increases gradually of lateral dimension;
Further, described dash plate upper surface, piston rod upper surface and pedestal lower surface all arrange cushion layer;
Further, described descent parameters detecting unit comprises:
Falling speed detecting sensor, for detecting elevator car falling speed parameter;
Elevator box weight parameter sensor, for detecting the real-time load weight parameter of elevator box;
Further, described descent parameters detecting unit also comprises:
Whereabouts contact detecting sensor, for detecting the pressure parameter produced Buffer Unit when elevator car falls and contacts with Buffer Unit.
Beneficial effect of the present invention: the elevator device with comformability damps device of the present invention, adopt magnetorheological damping assembly in Buffer Unit (being generally recoil spring) compression process, get involved the structure of damping, form the buffer damping mode of going forward one by one, and according to the parameter of parameter adjustment magnetic flow liquid that elevator car falls, then magnetic flow liquid electrical current as large in falling speed strengthens retrogradation, to increase dumping force, and touch dumping force in bottom buffering process at elevator car to increase gradually, and increase process is mild rapidly compared with common spring, final stage forms buffer damping, realize the ride comfort of downstream buffer and there is enough variable dumping forces, therefore the damping process of cushion stroke and laddering gradual change can compared with prior art be increased, the spring that elasticity modulus is less can be adopted in scheme, the adaptive damping in later stage gets involved the elastic buffer combining early stage, be applicable to express elevator use, there is the effect of dynamic application at any time, before making elevator car touch the end and the traveling comfort of moment of contact Buffer Unit and reliability effectively improve, the safety performance of hoisting elevator.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, as shown in the figure: the elevator device with comformability damps device of the present embodiment, comprise elevator car 1 and buffering assembly, described buffering assembly comprises and being fixedly installed on bottom elevator for preventing the Buffer Unit at the bottom of elevator car rigid touch and elevator car 1 being formed to the magnetorheological damping assembly of damping in Buffer Unit is by elevator car 1 elastic compression process;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil 18, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit 14, for providing power supply for magnet coil 18;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit 15, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command;
Elevator box 1 can have different speed and inertia according to differing heights and load-carrying in dropping process, thus for shock absorber, needs to provide different cushion effects and dumping force; In the present invention, the gravity utilizing descent parameters detecting unit to detect, speed and the pressure parameter that shock absorber is produced, the energising intensity of magnet coil 18 is adjusted by central processing unit 15, to adjust magnetic-field intensity, thus reach the object of adjustment magnetic flow liquid machinery, physical property, to change dumping force; When gravity, speed and to shock absorber produce pressure parameter bigger than normal time, in order to prevent declining and avoid at the bottom of rigid touch fast, then increase energising intensity, magnetic flow liquid entirety retrogradation, dumping force increase; Vice versa; Central processing unit according to great gravity, speed and to shock absorber produce pressure parameter adopt much energising intensity then belong to existing be by experiment confirmable control method, do not repeat them here.
In the present embodiment, the piston rod 5 that described magnetorheological damping body comprises dash plate 13, cylinder body 9, damping piston 10 and is fixedly connected with damping piston 10, be magnetic flow liquid in described cylinder body 9, damping piston 10 has damping hole, described piston rod 5 engages with dash plate 13 in the Buffer Unit (being generally recoil spring) of elevator is by elevator car compression process, and (dash plate 13 and piston rod 5 top have the spacing of setting, as shown in the figure), damping is formed by damping piston 10 pairs of dash plates; Described magnet coil 18 is positioned at around cylinder body 9, and described dash plate 13 is just to bottom elevator car; In the present invention, the Buffer Unit of elevator adopts recoil spring 3, before recoil spring 3 is compressed and is not reached compression limit, the piston rod 5 of damper assembly is depressed row, and damping piston 10 is had an effect formation damping, now according to elevator box 1 drawdown parameter determination dumping force, jointly buffer damping is formed with recoil spring 3, the mode that piston rod 5 engages with dash plate is generally the way of contact, and namely the descending direct contact piston bar upper end of dash plate, can realize the effect of descending damping; As shown in the figure, damping piston 10 has damping hole (setting size and number as required), be full of magnetic flow liquid in cylinder body, when piston moves under external force, magnetic flow liquid passes through by means of only damping hole, and viscosity determines dumping force and forms damping; As shown in the figure, cylinder body 9 is embedded among basis 8, magnet coil 18 is positioned at basis and is isolated by division board with basis 8, cylinder body 9 top is sealed by cylinder cap 11, cylinder cap 11 is sealedly attached to cylinder body 9 by the holding-down bolt 7 be embedded on basis 8, cylinder cap 11 is integrally formed the axle sleeve 12 for leading to piston rod; Adopt the structure that recoil spring combines with damper assembly, touch damper assembly in bottom buffering process at elevator car and engage the effect playing laddering buffer damping, this structure can increase the cushion stroke of Buffer Unit and reduce the elastic coefficient, the realization that can more relax whole process buffering; This structure is suitable for all cage type elevators and uses, and when elevator accident touches the end, can ensure that compression that is mild, that go forward one by one gradually cushions.
In the present embodiment, described Buffer Unit comprises the recoil spring 3 be arranged on basis 8, and dash plate 13 is supported in recoil spring 3 top; Basis 8 refers to the basis of the installation into Buffer Unit; As shown in the figure, basis 8 being also provided with the spring perch 6 for installing recoil spring 3, can be used for maximum compression stroke and the limited compression position of regulating spring 3; The quantity of recoil spring 3 can be installed as required, is generally more than three along the circumferential direction uniform settings; Dash plate 13 can adopt guidepost to install with recoil spring 3 top to coordinate and weld, and avoids departing from when buffering or bounce-back; Described recoil spring 3 is installed on basis by the spring perch 6 be fixed on basis 8, ensures that the installation strength of spring also can change the height of spring perch as required, reaches the object of adjustment its length, thus adjustment compression stroke.
In the present embodiment, described recoil spring 3 is variable-pitch spring, touch dumping force in bottom buffering process at elevator car 1 to increase gradually, and increase process is mild rapidly compared with common spring, realize the ride comfort of downstream buffer and there is enough dumping forces, therefore the elasticity modulus of cushion stroke and gradual change can compared with prior art be increased, the technical scheme of this critical performance parameters of automatic adjustment spring power can be formed, be applicable to express elevator to use, there is the effect of dynamic application at any time, in conjunction with the damping structure that go forward one by one relative to recoil spring, before making elevator car 1 touch the end and the traveling comfort of moment of contact Buffer Unit and reliability effectively improve, the safety performance of hoisting elevator.
In the present embodiment, the pitch of described recoil spring 3 becomes large from bottom to top gradually; The moment that can contact at elevator car 1 can submissive buffering at once, and increases elasticity modulus gradually.
In the present embodiment, relatively with piston rod 5 on described dash plate, be provided with axially directed mode can be coated at the orienting sleeve 4 of piston rod 5; Adopt orienting sleeve 4 structure, the lateral orientation of dash plate 13 and piston rod 5 can be limited, thus realize the damping of actv. joint.
In the present embodiment, described orienting sleeve 4 is arranged at dash plate 13 by a pedestal 2 is integrally formed, and described pedestal 2 has the contact end face being positioned at orienting sleeve 4 and engaging with piston rod tip contact; As shown in the figure, structure top base 2 is positioned at orienting sleeve 4, adopts base construction can set base height as required, thus adjustment engages stroke (contact end face and piston rod setting spacing under normal conditions), and increases the load ability after engaging.
In the present embodiment, described dash plate 13 thickeies process for arranging pedestal 2 place, and is formed by the pedestal 2 successively upwards structure that increases gradually of lateral dimension; As shown in the figure, by dash plate 13 forming station hierarchic structure downwards, be followed successively by thickening layer, pedestal 2 and orienting sleeve 4, form stable load basis according to the force structure of damping, thus ensure the safety in buffer damping process further.
In the present embodiment, described dash plate 13 upper surface, piston rod 5 upper surface and pedestal 2 lower surface all arrange cushion layer; This cushion layer can prevent direct rigid contact, thus ensures safety and compliance.
In the present embodiment, described descent parameters detecting unit comprises:
Falling speed detecting sensor 16, for detecting elevator car falling speed parameter; Be arranged at elevator, the existing speed sensor such as Hall element can be adopted to test the speed, do not repeat them here;
Elevator box weight parameter sensor 19, for detecting the real-time load weight parameter of elevator box; Can be arranged at bottom elevator car or other load parts;
The present embodiment also comprises whereabouts contact detecting sensor 17, for detecting when elevator car 1 falls and contacts with Buffer Unit the pressure parameter that Buffer Unit produces; Whereabouts contact detecting sensor 17 be arranged at elevator box improper fall time contact parts, the dash plate upper surface of such as the present embodiment;
The needs of buffering inertia can be obtained by above-mentioned elevator car falling speed parameter and real-time load weight parameter, the size adjusting electric current is needed according to this, and this adjustment can be carried out in elevator dropping process, real-time inertial parameter is obtained according to falling speed, overall weight, thus adjust the viscosity of magnetic flow liquid in real time, and pointed formation damping; During actual use, elevator car falls and has effect promptly and accurately to the pressure parameter of Buffer Unit generation when contact with Buffer Unit, actual impulsive force can be obtained accurately, thus the inertial parameter of above-mentioned two gain of parameters is reached to the object of correction, should be as the criterion with the large person of force of inertia of pressure parameter and acquisition; Owing to having real-time detection, the increase making dumping force pointed in dropping process or adjustment, be also unlikely to change and the impulsive force with sudden change after pressure parameter correction; The inertial parameter of above-mentioned acquisition according to inertial parameter adjustment magnetic flow liquid viscosity, by simply to calculate and the program of prior art can realize, does not repeat them here.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. there is an elevator device for comformability damps device, it is characterized in that: comprise elevator car and elevator car is formed to the magnetorheological damping assembly of damping in the Buffer Unit of elevator is by elevator car elastic compression process;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit, for providing power supply for magnet coil;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command.
2. the elevator device with comformability damps device according to claim 1, it is characterized in that: the piston rod that described magnetorheological damping body comprises dash plate, cylinder body, damping piston and is fixedly connected with damping piston, be magnetic flow liquid in described cylinder body, damping piston has damping hole, described piston rod engages with dash plate in the Buffer Unit of elevator is by elevator car compression process, forms damping by damping piston to dash plate; Described magnet coil is positioned at around cylinder body, and described dash plate is just to bottom elevator car.
3. the elevator device with comformability damps device according to claim 2, is characterized in that: relatively with piston rod on described dash plate, be provided with axially directed mode can be coated at the orienting sleeve of piston rod.
4. the elevator device with comformability damps device according to claim 3, it is characterized in that: described orienting sleeve is arranged at dash plate by a pedestal is integrally formed, described pedestal has the contact end face being positioned at orienting sleeve and engaging with piston rod tip contact.
5. the elevator device with comformability damps device according to claim 4, is characterized in that: described dash plate is used for arranging pedestal place and thickeies process, and is formed by the pedestal successively upwards structure that increases gradually of lateral dimension.
6. the elevator device with comformability damps device according to claim 3, is characterized in that: described dash plate upper surface, piston rod upper surface and pedestal lower surface all arrange cushion layer.
7. the elevator device with comformability damps device according to claim 1, is characterized in that: described descent parameters detecting unit comprises:
Falling speed detecting sensor, for detecting elevator car falling speed parameter;
Elevator box weight parameter sensor, for detecting the real-time load weight parameter of elevator box.
8. the elevator device with comformability damps device according to claim 7, is characterized in that: described descent parameters detecting unit also comprises:
Whereabouts contact detecting sensor, for detecting the pressure parameter produced Buffer Unit when elevator car falls and contacts with Buffer Unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767660.2A CN104444696A (en) | 2014-12-13 | 2014-12-13 | Elevator system with adaptive damping force damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767660.2A CN104444696A (en) | 2014-12-13 | 2014-12-13 | Elevator system with adaptive damping force damping device |
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| Publication Number | Publication Date |
|---|---|
| CN104444696A true CN104444696A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410767660.2A Pending CN104444696A (en) | 2014-12-13 | 2014-12-13 | Elevator system with adaptive damping force damping device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348127A (en) * | 2016-12-01 | 2017-01-25 | 郑州艾莫弗信息技术有限公司 | Self-adaption elevator buffer with feedback |
| CN107381278A (en) * | 2017-07-25 | 2017-11-24 | 青岛万祥如光机械技术研究有限公司 | A kind of anti-falling safe elevator |
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| US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
| JP2005054847A (en) * | 2003-08-01 | 2005-03-03 | Univ Kanagawa | Viscous variable fluid shock absorber |
| JP2008208885A (en) * | 2007-02-26 | 2008-09-11 | Univ Kanagawa | Viscous variable fluid damper |
| CN103032510A (en) * | 2012-12-12 | 2013-04-10 | 重庆大学 | Tension type magneto-rheological buffer, |
| CN103322113A (en) * | 2013-05-31 | 2013-09-25 | 重庆大学 | Controllable torque device based on magnetorheological materials |
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2014
- 2014-12-13 CN CN201410767660.2A patent/CN104444696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
| JP2005054847A (en) * | 2003-08-01 | 2005-03-03 | Univ Kanagawa | Viscous variable fluid shock absorber |
| JP2008208885A (en) * | 2007-02-26 | 2008-09-11 | Univ Kanagawa | Viscous variable fluid damper |
| CN103032510A (en) * | 2012-12-12 | 2013-04-10 | 重庆大学 | Tension type magneto-rheological buffer, |
| CN103322113A (en) * | 2013-05-31 | 2013-09-25 | 重庆大学 | Controllable torque device based on magnetorheological materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348127A (en) * | 2016-12-01 | 2017-01-25 | 郑州艾莫弗信息技术有限公司 | Self-adaption elevator buffer with feedback |
| CN107381278A (en) * | 2017-07-25 | 2017-11-24 | 青岛万祥如光机械技术研究有限公司 | A kind of anti-falling safe elevator |
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Application publication date: 20150325 |