US792690A - Bevel-gear driving and compensating mechanism. - Google Patents

Description

No. 792,690. PATENTED JUNE 20, 1905. A. P. BRUSH.

BEVEL GEAR'DRIVING AND GOMPENSATING MECHANISM.

APPLICATION FILED MAY 27, 1903.

3 SHEETS-SHEET 2.

WIT ESSE'S I VEWTOR gfi 5am W yaw Q amfaflf 3 71M 4 M% w flitorney.

No. 792,690. PATENTED JUNE 20, 1905.

A. P. BRUSH.

BEVEL GEAR DRIVING AND GOMPENSATING MECHANISM.

APPLIOATION FILED MAY 27, 1903.

WITNESSES IWVENTOR NITED STATES Patented June 20, 1905.

ALANSON P. BRUSH, OF DETROIT, MICHIGAN, ASSIGNOR TO THE BAKER MOTOR VEHICLE OO., OF CLEVELAND,

OHIO.

OHIO, A CORPORATION OF BEVEL-GEAR DRIVING AND COMPENSATING IVlE CHANlSiVl.

SPECIFICATION forming part of Letters Patent No. 792,690, dated June 20, 1905.

Application filed May 27, 1903- Serial No. 158,981.

To all wit/0717 it may; concern:

Be it known that I, ALANsoN P. BRUSH, a citizen of the United States, residing at Detroit, county of l/Vayne, State of Michigan,

have invented a certain new and useful Improvement in Bevel-Gear Driving and Compensating Mechanism, of which the following is a specification, reference being had to the accompanying drawings, Which-form apart to of this specification.

My invention has for its object a novel method of mounting the gears of a bevel-gear differential driving and compensating mechanism, the same being more particularly designed and adapted as a differential driving mechanism for automobiles, although Ido not limit myself solely thereto.

My invention consists of the construction, combination, and arrangement of devices hereinafter described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a view in horizontal section, illustrating my invention. Fig. 2 is a similar view showing parts of my invention and a modified form of the bearings and of the inclosing case. Fig. 3 is a detail view, in horizontal section, showing another modification in the construction of the bearings. Fig. I is a view in vertical section on the line 4: 4, Fig. 1.

More specifically, my invention pertains to a bevel-gear driving and compensating mechanism, the object of my invention being to provide a differential driving-gear of superior efficiency and utility.

I carry out my invention as follows:

In the drawings, (4 represents a drivingshaft driven from any suitable source of power -as, for example, from an electric m0- tor or from a gasolene-engine or other driv- 4 ing power commonly used upon automobiles. Upon the driving-shaft is a driving bevel-gear b,meshing with a driven gear 0, which is shown carried by a rotatable housing d, preferably rotatable upon antifriction-bearings c and f.

The stationary portions 9 and It of said bearings are carried upon hubs z'and 7' of the axlehousings 7:: and Z of the axle-sections y y, as

shown in Fig. 1. These hubs v1 and 7' project within a gear case or housing m. The hubs 4 and 7' that carry the stationary parts of the 5 bearings instead of forming parts of the axlehousings 7n and Z might extend inwardly from the two sides of the gear case or housing 172, as illustrated, for example, in Figs. 2 and 3, the same being an integral part of said gearcase m. A housing for the driving-shaft is indicated at '21 the gear 6 having an antifriction-bearing thereupon, as indicated at p.

\Vhile I have shown ball bearings at 0, f, and p, Fig. 1, I would have it understood that I do not limit myself thereto, nor, indeed, even to antifriction-bearings, as any suitable bearings come Within the scope of my invention. In Fig. 2 I have shown an ordinary sliding bearing at q. In Fig. 3 I have shown at an anti- 5 friction-bearing of the roller type, the antifriction-bearings shown in Fig. 1 being of the ballbearing type. The housing (Z is constructed, preferably, with plural elongated orifices r to receive the outer ends of the compensating- 7o pinion spindles 8, said spindles each provided with a compensating or differential drivingpinion, (indicated at 25,) said pinion t meshing with companion compensating or differential driving-gears a and 0; between the aXle-sections provided with hubs w and 00, mounted upon a corresponding member of a divided driven shaft or axle-sections y y and independently adjustable thereupon in any suitable manner. Between said gears 14 and o is O a ring .2, carrying the plural shafts of the compensating pinions t, said shafts being rigidly engaged with said ring. The hubs w and a; of the difierential driving-gears 11/ and 0) may be snugly engaged or embraced around their 8 5 outer peripheries by bearings (Z, formed on the housing (Z, as shown in Fig. 1, so that the axle-sections 1 y may be removed or disengaged from the gears 10 and o WithoutdiS- placing said gears. It will be evident that the axle-sections extend into the housing, the same being engaged by the differential gear. The slots 9" are preferably elongated longitudinally of the driven shaft 1 yfor the purpose has an antifriction-bearing in the housing n,-

of permitting the housing (Z to be adjusted to maintain a proper mesh of the driven gear 0 with the driving-pinion Z) or to allow any necessary adjustment of the shaft 3 3 and to permit of any corresponding movement of the shafts s longitudinally of the driven shaft f] 1 So, also, these elongated orifices 0 permit the adjustment of the mesh of the compensating pinions t and the compensating gears u o. It will be seen that upon the rotation of the driven gear 0 in the manner above described the housing (Z is also rotated therewith, and in consequence of which the shafts 8, together with their compensating pinions t and the ring .2, are carried with the rotation .of the housing, the compensating pinions t meshing with the compensating gears u 41, causing the rotation of the compensating gears, while at the same time, by reason of the compensating pinions 6 being rotatable upon the corresponding shaft 8, different rates of rotation may take place of the compensating gears up upon the shaft 1 1 The compensating pinions 25 are loosely journaled upon the corresponding shafts s. This construction permits one of the compensating gears u and o being caused to travel faster than the other under certain conditions, as is necessary, for example, when the vehicle is turning a corner. The gear-case m is preferably made tight, so as to form an oil-case. To permit the adjustment of the bearings e and f or of the bearings q, as the case may be, a collar (indicated by the numeral 1) may be employed having a threaded engagement upon an enlarged portion 2 of the hubsz' and 7'. The collar may be adjusted to adjust the antifriction-bearing by means of pinions 3 and 4 being carried upon shafts 5 and 6 to the exterior of the gear-case m, so that any suitable instrument can be engaged therewith to effect the adjustment of the collars 1. The inner ends of the driven shaft 1/ 7 may be journaled in the housing cl, as indicated in Fig. 1, although I do not limit myself thereto, although such a construction is preferable. In Figs. 2 and 3 the said driven shaft is shown journaled in the gear-case m. The driving-gear 6 preferably as shown in Fig. 1, although I do not limit myself thereto, as either of the bearings shown in Figs. 2 and 3 might be employed in lieu thereof, or any other suitable bearing. The housing (Z may be divided in any suitable manner to secure the same in place and to permit the introduction of the compensating mechanism therewithin. In Fig. 1 it will be evident that the gear-case m is divided horizontally, while in Fig. 2 the same is indicated In each case the same may be provided with corresponding angular feature of my invention. The parts of the housing (Z may be held together in any suitable manner, as by bolts 10.

The operation of the invention will now be understood and, to recapitulate, is as follows: Power applied to the driving-shaft a is communicated by the driving pinion to the driven gear 0 and to the housing (Z, the rotation of the housing (Z carrying therewith the shafts s, with their respective compensating pinions t meshing with the corresponding compensating gears 20 and 0) upon the inner ends of the divided shaft 3/ y, the compensating pinions 6 being loosely journaled upon their corresponding shafts .9, providing for and permitting either of the compensating gears '16 and o to be driven faster than the other, as in turning the vehicle, when such differences in the velocity of the gears become necessary.

My invention also provides for a mounting of this compensating mechanism upon bearings. It will be obvious that instead of having the shafts s, engaged with the ring a, project into the corresponding slots r any other extensions of said ring might be employed to project into said slots.

My invention is thus designed to provide a mounting for the driving and the driven gear which shall in the simplest and most direct manner assure the proper relation between the axis of the driving and driven gears and to permit of the mesh of the driving and driven gears being adjusted in absolute independence of the rest of the mechanism, which is accomplished by mounting the driven gear upon a housing having bearings the stationary parts of which are substantially parts, of the case or framework, which also carries the hearing or bearings for the driving-gear.

My invention also permits independence of adjustment and alinement of the compensating mechanism by means of the elongated slots in the housing cl engaging the ends of the compensating-pinion shafts s or their projections on the ring 2, upon which the compensating pinions are mounted. By reason of the elongation of said slots, the longitudinal position of the driven gear and its housing, and the parts of the divided driven shafts 1 y their longitudinal relation is not necessarily exact, giving freedom of adjustment of the compensating gears or of any bearings which the driven shaft might have.

My invention also provides a means whereby when it is desired to make the gear-casem an oil-case the bearings may be adjusted that carry the driven gear 0 to compensate for the wear of the bearings or to alter the mesh of the driven and driving gears b and 0 without opening the case m. This is accomplished, as already noted, by means of the pinions 3 and 4 having a toothed engagement with the adjacent adjusting-rings 1 and 2 of the adjacent TIO bearings, the shafts of the said pinions extending to the exterior of the case and provided at their outer ends with means of rotating them to obtain the desired adjustment, means being provided for locking said shafts to maintain the adjustment, as by locking-nuts 11 and 12.

The hubs w m of the differential gears u 0), it will be understood, are rigid upon the adjacent ends of the axlesections, so that practically said hubs and the axle-sections have the same bearings. It will also be understood that the compensating or differential gears 10 41, with the intermediate pinions meshing therewith, constitute a differential gear between the axle-sections. I

The hearings e f, of different constructions, as the conical bearings shown in Fig. 3, are axially opposite one another between the differential gear and the housing m, said bearings sustaining the differential gear in the housing m.

What I claim as my invention is- 1. In combination a driving-shaft provided with a driving-gear, driven shafts, differential mechanism for driving the driven shafts actuated by the driving-gear, and a housing for the differential mechanism, said housing being movable longitudinally of the driven shafts and independently of said shafts and of the driving-gear.

2. The combination with the driving-gear and the driven gears of a compensating mechanism, of a housing for the driven gears movable relatively rectilinearly of the bearings for the driven gears and independently thereof, said housing having bearings separated from and independent of the driven gears.

3. In combination a driving-gear, a revoluble housing, a gear which meshes with the d riving-gear, driven shafts,driven gears thereon. compensating gears carried by the housing, and means formed in the housing to permit the mesh of the driving and driven gears to be adjusted without affecting the position of the compensating gears and their mountings.

4:. In combination, a driving-gear, a revoluble housing, a gear which meshes with the driving-gear, differential mechanism inclosed by the housing and actuated by the drivinggear, driven shafts extending through the housing, gearing connecting the shafts and the differential mechanism, means for moving thehousing longitudinally of the driven shafts and independent thereof, and mountings for thehousing independent of the mountings for the driven shafts.

5. In combination, a driving-gear, a driven gear, a housing carrying the driven gear, driven shafts having gears thereon and mounted independently of the housing, compensating gears carried by the housing and having a &

ing may be moved independently and longitudinally of the driven shafts to adjust the mesh of the driving and driven gears without affecting the position of the compensating gears and their mountings.

6. In combination, a driving-gear, a driven gear, a housing carrying the driven gear, driven shafts, differential mechanism inclosed within the housing and actuated thereby, and,

means to adjust thehousing longitudinally and independently of the driven shafts and the differential mechanism, whereby the mesh of the driving and driven gears may be varied.

7. In combination a driving-gear, a driven gear, a rotatable housing carrying the driven gear, driven shafts, oppositely-disposed gears mounted thereon, compensating pinions meshing with the oppositely-disposed gears and carried by the housing and having a loose engagement with the housing to permit the housing to be moved longitudinally of the driven shafts independently of the differential mechanism, said oppositely-disposed gears and pinions located within the said housing.

8. The combination with the driving-sh afts, oppositely-disposed gears thereon and compensating pinions meshing with said gears, a

housing to carry the compensating pinions.

and loosely journaled upon the hubs of the oppositely-disposed gears, bearings for the housing separated from and independent of the driving-shafts, acasing, and means for .adjusting the bearings of the housing, said adjusting means being actuated from exterior of the casing.

9. In combination adriving-gear, a revoluble housing provided with a driven gear meshing with the driving-gear and having elongated apertures, driven shafts, compensating pinions having their shafts projected into the apertures in the housing, and means to adjust the mesh of the driving and driven gears.

10. In combination adriving-gear, a driven gear, a housing carrying the driven gear, driven shafts, compensating gears thereon, compensating pinions carried by the housing and in mesh with the compensating gears,

said housing having bearings independent of the bearings for the compensating gears and driven shafts, a casing carrying one member of each of the bearings for the housing, an adjusting mechanism in the casing adapted to be actuated from the exterior thereof and having a toothed engagement with one member of the bearing for the housing, whereby the mesh of the driven and driving gear, may

be adjusted without moving the driven shafts, and without disturbing the adjustment of the compensating gears.

11. In combination a driving-shaft provided with a driving-gear, driven shafts, and differential gears to drive the driven shafts, respectively, actuated by the driving-gear, and a roloose connection therewith, whereby the housl tatable housinginclosingthe differential gears,

the position of the differential mechanism along the axis of the driven shafts being independent of the rotatable housing.

12. In combination adriving-shaft provided with a driving-gear, driven shafts, driven gears upon the driven shafts, respectively, a gear driven by said driving-shaft and actuating the gears upon the driven shafts, a housing for the driven gears and their mountings, and gears actuated from outside the housing for adjusting the bearings that carry the driven-gear mountings.

18. In combination a dri ving-shaft provided with a driving-gear, a rotatable housing provided with a gear meshing with the drivinggear, driven shafts, gears upon the driven shafts respectively, compensating spindles actuated by the rotatable housing, compensating pinions upon said spindles meshing with the gears upon the driven shafts, and means to adjust the mesh of the driving and driven gears.

14. In combination adriving-shaft provided with a driving-gear, a rotatable housing provided with a gear meshing with said drivinggear and constructed with plural elongated orifices, driven shafts, compensating spindles projecting into the orifices of said housing, a

compensating companion pinion on each of said spindles, companion compensating gears upon the driven shafts meshing with the compensating pinions and a ring between said compensating gears carrying the compensating spindles.

15. In combinationadrivingshaft provided with a driving-gear, a rotatable housing provided with a gear meshing with said drivinggear and constructed with plural elongated orifices, driven shafts, compensating spindles projecting into the orifices of said housing, a compensating companion pinion on each of said spindles, companion compensating gears upon the driven shafts meshing with the compensating pinions, a ring between said compensating gears carrying the compensating spindles, and means to adjust said housing longitudinally of the driven gears.

16. In combination a driving-shaft, abeveled gear on the driving-shaft, driven shafts, differential mechanism for driving the driven shafts, said differential mechanism provided with a driven gear meshing with said beveled gear, a housing carrying said driven gear, said housing inclosing said differential mechanism, and bearings carrying said housing, said bearings beingindependent of the driven shafts and of the differential mechanism.

17. In combination a driving-shaft provided with adriving-gear, driven shafts, differential mechanism for driving the driven shafts, said differential mechanism provided with plural gears actuated by said driving-gear, and a rotatable housing rotated by the driving-gear, said plural gears mounted independent of the driven shafts and rotated about the axis of the driven shafts by said housing, the position of the plural gears along the axis of said .driven shafts being independent of the position of said housing.

18. In combination a driving-shaft provided with ad riving-gear, driven shafts, differential mechanism actuated by said driving-gear for driving the driven shafts, said differential mechanism provided with an additional gear meshing with the driving-gear, a housing carrying said additional gear and mounted independently of the driving-shafts, a rotatable housing in which the differential mechanism is mounted, the mounting of the d riving-gear and of the differential mechanism permitting an independent movement of the housing longitudinally to the driven shafts.

19. In combination a driving-shaft provided with a driving-gear, driven shafts, and differential mechanism provided with a rotatable housing having a driven gear actuated by the driving-gear for actuating the driven shafts, the mounting of the driven gear permitting the adjustment of its axis independent of the driven shafts and saidrotatable housing inclosing the differential mechanism,-and carrying said driving-gear.

20. In combination a driving-shaft provided with a driving-gear, driven shafts, and, differential mechanism having a driven gear actuated by the drivinggear for actuating the driven shafts, a rotatable housing inclosing the differential mechanism, the mounting of the driven gear permitting its adjustment along its axis independent of the driven shafts and independent of any other part of the differential mechanism.

21. In eombination,a driving-shaft provided with a bevel-gear, driven shafts, differential mechanism for driving the driven shafts provided with a driven gear meshing with said bevel-gear, a rotatable housing for the differential mechanism actuated by the drivinggear, and a housing for the driven shafts, having bearings for the housing of the differential mechanism.

22. A casing for the power-transmitting mechanism of an automobile consisting of a casing-body formed in two separable parts, means for fastening said parts together, two alined tubes clamped between said parts of the casing and extending laterally in opposite directions therefrom, and a housing for the d riving-shaft separable from said casing-body and clamped between the parts of said body.

23. In a motor-vehicle, the combination with the two-part driving-axle, the differential gearing, the gear connected to said differential gearing, and the gear for driving said gear, of means for adjusting the former gear relatively to the driving-axle sections com prising rings adjustably mounted on the axlebearings.

24. The combination of a casing having latorally-extended tubes, and axle-sections extending through said tubes into said casing, In testimony whereof I have signed this with differential gearing in send easing conspeelficatlon 1n the presence of two SIlbSCI'1b nectlng said axle-sections, WhlCh gearlng lnlng Witnesses.

eludes a housing Which is rotatably mounted ALANSON P. BRUSH. in antifrietion -bea1-ings upon said casing, Witnesses:

means for adjusting said -bearings longitudi- N. S. WRIGHT,

nally, and means for rotating the housing. l M. M. STRUBLE.

Images