US1589928A - Reduction gearing - Google Patents

Description

June 22 1926. 1,589,928

W. E. BEE

REDUCTION GEARING Filed March 5. 1923 2 Sheets-Sheet 1 31402911304; 3 ll zzzzm'lf 566 m W410" mam Wm H8 euwmw June 22 1926. 1,589,928

W. E. BEE

REDUCTION GEARING Filed March 5. 1923 2 Sheets-Sheet 2 7 I? 28 .26 7 a 27 3/ aw WM s I I a 0 2A & 7

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35, WW #wm m Patented June 22, 1926.

U N [TED S TAT ES PATENT OFFICE.

WILLIAM' E. BEE, OF DETROIT, MICHIGAN, ASSIGNOR TO PALMER-BEE COMPANY, OF DETROIT, MICHIGAN", A CORPORATION OF MICHIGAN".

REDUCTION GEARING.

Application filed March 5, 1923'. Serial No. 622,958.

The invention relates to reduction gearing and has among its. objects the provision of a reduction gearing embodying a worm. drive; a reduction gearing having provision for transmitting power at opposite sides thereof; a. reduction gearing having a housing provided with a cover through which the. drive shaft extends and which is removable without disturbing the mechanism with-in the housing; and a reduction gearing in which the power shaft supports the drive shaft Other objects of the invention reside in the: novel features of construction and combinations and arrangements of parts asmore fully hereinafter set forth.

In the drawings:

Figure 1 is an end elevation of a reduction gearing embodying my invention;

Figure 2 is a plan View thereof with the housing cover removed;

Figure 3 is: a cross section on the line 33 of Figure 2;:

Figure at is: a cross section on the line l--i of Figure 3.

1 and 2: are respectively the lower section and upper section or cover of the housing and 3 and i are respectively the power shaft and the counter of the reduction gearing,

shaft extending transversely of the housing and parallel to each other, the axes of these shafts being in the meeting edges of" the lower section and cover of the housing and the power shaft extending laterally beyond the opposite sides of the housing so that either or both sides of this power shaft may be used in transmitting; power; These two shafts are journalled in the bearing members 5 and 6 supported upon the lower section 1 of the housing and therewithin at its opposite sides, these bearing members, having detachable cups The gearing mechanism comprises the worm: 7 the worm wheel 8"- meshing with the worm and secured to the sleeve 9- by suitable: means such as the key 16). This sleeve is rotataloly mounted upon the power shaft 3 adjacent". to the bearing member 5' and has secured to its inner end the pinion 11; which as shown, is integral therewith.

This pinion meshes with the gear 12- secured upon the counter shaft 4 to which is also of the motor 18, this motor being mounted upon thebracket l9 detaehably' secured to the rear end of the lower section 1 of. the reduction gearing housing.

The worm shaft is: mounted upon the power shaft and its support comp-rises: the spaced side frames 21 on opposite sides of the worm wheel 8 and having hubs 22 journalled upon the pinion sleevev 9. The rear lower ends of these side frames have lateral lugs 23- formed thereon which rest upon and are secured to lateral lugs 24' formed upon the rear end of the lower section 1 of thehousing, the securing means comprising bolts 25 extending through these lugs. By securing the rear end of the support to the rear wall of: the lower section: the support is held from rotation about the pinion sleeve. The support has at the upper edges of the sideframes 21 and at the opposite ends thereof the annularenlarge ments 26 and 27 carrying the anti-friction bearings 28 and 29 respectively which support the worm shaft 15' near its opposite ends; The opening through the rear annular enlargement 27 is of sufficientdiameter to: permit of the passage longitudinally thereth-rough of the worm 7.

30- is a detachable closure in the rear end of the housing cover 2 surrounding the worm shaft 15- and having spaced inner and outer walls 31 and respectively forming a chamber for receiving any luhricant thrown off the annular bevelled shoulder 33' of the worm shaft. This chamber communicates with the interior of the housing through suitable passages 34- in the lower part of the inner wall 3'1. The opening in the end wall".

of the cover 2 which is closed by the closure is of suiiicient diameter to permit upon the removal of the flexible coupling 16 and of the closure 30, of tilting the forward end of the cover 2 upwardly and at the same time moving the same rearwardly until the rear end of the cover has passed over the outer end of the worm shaft 15 at which time the cover is free to be raised from the lower section of the housing.

From the above description it will be readily seen that I have provided a reduction gearing having a housing provided with a cover through which the drive shaft extends, this cover being removable without disturbing the mechanism within the housing. I urthermore, that I have provided a simple construction for supporting the worm upon the power shaft. Furthermore, that the power shaft is adapted to transmit power at either or both ends of the reduction gearing, this being very desirable in certain instances as for example when the reduction gearing is used in conjunction with a pair of parallel conveyors.

hat I claim as my invention is:

1. In a reduction gearing, the combination with a power shaft and a counter shaft, of a sleeve rotatably mounted upon said power shaft, a pinion secured to said sleeve, a gear meshing with said pinion and secured to said counter shaft, a pinion secured to said counter shaft, a gear secured to said power shaft, a worm wheel secured to said sleeve, and a worm meshing with said worm wheel for driving the same.

2. In a reduction gearing, the combination with a housing and a power shaft, of reducing gearing for driving said shaft including a member mounted thereon, a drive member cooperating with said first1nentioned member and extending transversely thereof and carried upon said shaft, and means for securing said drive member in fixed relation to said housing.

3. In a reduction gearing, the combination with a housing and a power shaft, of

gearing for driving said power shaft including a worm wheel mounted thereon, and a worm meshing with said worm wheel and carried by said power shaft, and means for securing said worm in fixed relation to said housing.

l. In a reduction gearing, the combination with a housing and shaft, of gearing for driving said shaft including a worm wheel mounted thereon. drive shaft having a worm cooperating with said worm wheel and a support mounted upon said first-mentioned shaft and having bearing portions in which said worm shaft is journalled, said support being connected to said housing.

5. In a reduction gearing, the combination with a power shaft and a counter shaft, of gearing mounted upon said shafts for driving said power shaft, said gearing including a worm wheel revolubly carried by said powr shaft, a drive shaft having a worm meshing with said worm wheel, and a support for said worm shaft comprising side frames at opposite sides of said worm wheel and provided with bearing portions beyond the periphery of said worm wheel in which said worm shaft is journalled.

6. In a reduction gearing, the combination with a housing section, of a power shaft and counter shaft carried thereby, gearing upon said power shaft and counter shaft for driving said power shaft, said gearing including a worm wheel rotatably carried by said power shaft, a drive shaft having a worm meshing with said worm wheel, and a sup port rotatably mounted upon said power shaft and provided with bearing portions in which said worm is journalled and with means for attachment to said housing section.

7. In a reduction gearing, the combination with the lower section of a housing, of a power shaft journalled thereon and extending thcrethrough, gearing for driving said power shaft including a worm wheel mounted there on, a drive shaft extending transversely of said power shaft and having a worm meshing with said worm wheel, a cover detachably secured to said lower section and having an opening therein through which said drive shaft extends, said opening being of a size to permit of the complete removal of said cover by combined tilting and lateral movement and subsequent upward move ment, and a closure for the opening in said cover detachably secured to said cover.

8. In a reduction gearing, the combination of a housing section, of a cover detachably secured thereto, a power shaft journalled upon said housing section, a drive shaft extending through said cover and carried upon said power shaft and gearing between said drive shaft and power shaft for driving the latter from the former, said cover having provision for its removal without disturbing the gearing.

9. In a reduction gearing, the combination with the lower section of a housing, of a power shaft journalled thereon and extend ing thercthrough, gearing for driving said pow-r shaft including a worm wheel mounted thereon, a drive shaft extending transversely of and mounted upon said power shaft and having a worm meshing with said worm wheel, a cover detachably secured to said lower section and having an opening therein through which said drive shaft extends. said opening being of a size to permit of the complete removal of said cover by 1 combined tilting and lateral movement and subsequent upward movement, and a closure for the opening in said cover detachably secured to said cover.

10. In a reduction gearing, the combination with a housing and a shaft having a frames at opposite sides of and positioning portion therewithin, of mechanism for drivthe gear member in mesh with said third ing said shaft including a sleeve rotatably gear member, said side frames being con- 10 mounted thereon, spaced gear members nonnected to said housing.

5 rotatably secured upon said sleeve, and a In testimony whereof I affix my signature.

third gear member meshing With one of said first mentioned gear members, and side WILLIAM E. BEE.

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