CN104763799A

CN104763799A - Output shaft support device for automatic gearbox

Info

Publication number: CN104763799A
Application number: CN201510140887.9A
Authority: CN
Inventors: 高晓光; 李三帅; 刘肖; 苑衍灵
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2015-03-28
Filing date: 2015-03-28
Publication date: 2015-07-08
Anticipated expiration: 2035-03-28
Also published as: CN104763799B

Abstract

The invention discloses an output shaft support device for an automatic gearbox, and belongs to the technical field of the automatic gearbox. The output shaft support device for the automatic gearbox comprises an anti-thrust bearing and a radial bearing; an adjusting shim is installed between the ring of the anti-thrust bearing and the shell of the gearbox; the inner ring of the radial bearing is sleeved on the shaft shoulder of the output shaft; the outer side of the inner ring of the radial bearing bears against the output gear of the output shaft, and the inner side of the inner ring bears against the shaft ring of the anti-thrust bearing; the inner side of the outer ring of the radial bearing is provided with a flange; a spacer is installed between the flange and the shell of the gearbox; the outer ring of the radial bearing is fixedly installed with the shell of the gearbox; and the outer side of the outer ring of the radial bearing is provided with an opening. The output shaft support device for the automatic gearbox is capable of, through designing the radial bearing as the separated structure, solving the wearing problem of the gearbox shell, and solving the assembling problem of the radial bearing.

Description

Automatic transmission case output shaft support device

Technical field

The invention belongs to automatic transmission case technical field, particularly relate to a kind of automatic transmission case output shaft support device.

Background technique

Output shaft one end connected row carrier of automatic transmission case, the other end is installed on gear box casing by support device, and output shaft is provided with the shaft shoulder and output gear from inside to outside successively.Support device comprises bearing, bearing comprises the roller bearing for mainly bearing radial force and the thrust bearing for mainly bearing axial force, roller bearing is installed on the shaft shoulder, be provided with pad between the outer ring of roller bearing and gear box casing, thrust bearing is in the end of output shaft and be provided with adjustment pad between thrust bearing and gear box casing.

At present, because gearbox is when overhauling, need need to change suitable adjustment pad according to size, because adjustment pad is positioned at inner side, for the ease of assembling and dismounting, the outer ring of roller bearing and gear box casing are Spielpassung.But, in running, easily cause gear box casing outer ring to wear and tear, after permanent use, the damage of other component of gearbox can be caused.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of automatic transmission case output shaft support device, the technical problem causing gear box casing outer ring to be worn and torn with the outer ring and gear box casing Spielpassung that solve existing roller bearing.

For solving the problems of the technologies described above, technological scheme of the present invention is: automatic transmission case output shaft support device, comprise the thrust bearing and radial bearing that set gradually from inside to outside, the blowout patche of described thrust bearing is set in the end of described output shaft, the seat ring of described thrust bearing is arranged on the housing of described gearbox, is provided with adjustment pad between the seat ring of described thrust bearing and the housing of described gearbox; The inner ring of described radial bearing is sleeved on the shaft shoulder of described output shaft, the outside of the inner ring of described radial bearing and the output gear of described output shaft lean, the inner side of the inner ring of described radial bearing and the blowout patche of described thrust bearing lean, the inner side of the outer ring of described radial bearing is provided with rib, pad is provided with between the housing of described rib and described gearbox, the outer ring of described radial bearing and the housing of described gearbox are fixedly installed togather, and the outside of the outer ring of described radial bearing is provided with uncovered.

Improve as one, described uncovered outside is provided with the guide portion be obliquely installed.

Improve as one, described radial bearing is roller bearing.

After have employed technique scheme, the invention has the beneficial effects as follows: because automatic transmission case output shaft support device comprises the thrust bearing and radial bearing set gradually from inside to outside, the outer ring of described radial bearing and the housing of described gearbox are fixedly installed togather, thus when assembling, the outer ring of radial bearing and the housing of gearbox are assembled into one, in follow-up using process, effectively can avoid the wearing and tearing of the housing of gearbox and the outer ring of radial bearing; Meanwhile, the outside due to the outer ring of described radial bearing is provided with uncovered, and gearbox, when overhauling dismounting, makes the roller of radial bearing, inner ring and thrust bearing pull down, thus is convenient to change adjustment pad.Automatic transmission case output shaft support device provided by the invention is by being designed to separate type by radial bearing, and not only structure is simple, and solves the wear problem of gear box casing, meanwhile, solves again the assembly problem of radial bearing.

Because described uncovered outside is provided with the guide portion be obliquely installed, by the leading role of guide portion, the retainer of radial bearing and roller are entered in the outer ring of radial bearing smoothly.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the structural representation of radial bearing in Fig. 1;

In figure: 1, thrust bearing, 11, blowout patche, 12, seat ring, 2, radial bearing, 21, inner ring, 22, outer ring, 221, rib, 23, roller, 24, retainer, 25, uncovered, 251, guide portion, 3, output shaft, 31, the shaft shoulder, 32, output gear, 4, housing, 5, adjustment pad, 6, pad.

Embodiment

In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

As Fig. 1 and Fig. 2 jointly shown in, a kind of automatic transmission case output shaft support device, comprise the thrust bearing 1 and radial bearing 2 that set gradually from inside to outside, preferably, radial bearing 2 is roller bearing, the blowout patche 11 of thrust bearing 1 is set in the end of output shaft 3, and the seat ring 12 of thrust bearing 1 is arranged on the housing 4 of gearbox, is provided with and adjusts pad 5 between the seat ring 12 of thrust bearing 1 and the housing 4 of gearbox.

The inner ring 21 of radial bearing 2 is sleeved on the shaft shoulder 31 of output shaft 3, the outside of the inner ring 21 of radial bearing 2 and the output gear 32 of output shaft 3 lean, the inner side of the inner ring 21 of radial bearing 2 and the blowout patche 11 of thrust bearing 1 lean, the inner side of the outer ring 22 of radial bearing 2 is provided with rib 221, pad 6 is provided with between the housing 4 of rib 221 and gearbox, the roller 23 of radial bearing 2 is arranged in retainer 24, the outer ring 22 of radial bearing 2 is fixedly installed togather with the housing 4 of gearbox, preferably, interference fit is adopted between the outer ring 22 of radial bearing 2 and the housing 4 of gearbox, certainly, also the modes such as fastening piece can be adopted to be fixed together with the housing 4 of gearbox the outer ring 22 of radial bearing 2, be well known to those skilled in the art, do not repeat them here, the outside of the outer ring 22 of radial bearing 2 is provided with uncovered 25.

In order to the retainer 24 and roller 23 that make radial bearing 2 enter in the outer ring 22 of radial bearing 2 smoothly, the outside of uncovered 25 is provided with the guide portion 251 be obliquely installed, and retainer 24 and the roller 23 of guide portion 251 pairs of radial bearings 2 play the guiding role.

When assembling, the outer ring 22 of radial bearing 2 and the housing 4 of gearbox being assembled into one, radial bearing 2 is designed to separate type, in follow-up using process, effectively can avoid the housing 4 of gearbox and the wearing and tearing of the outer ring 22 of radial bearing 2; Meanwhile, because the outside of the outer ring 22 of radial bearing 2 is provided with uncovered 25, gearbox, when overhauling dismounting, makes the roller 23 of radial bearing 2, inner ring 21 and thrust bearing 1 pull down, thus is convenient to change adjustment pad 5.

The automatic transmission case output shaft support device that the embodiment of the present invention provides not only structure is simple, and solves the wear problem of gear box casing, meanwhile, solves again the assembly problem of radial bearing.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. automatic transmission case output shaft support device, comprise the thrust bearing and radial bearing that set gradually from inside to outside, the blowout patche of described thrust bearing is set in the end of described output shaft, the seat ring of described thrust bearing is arranged on the housing of described gearbox, is provided with adjustment pad between the seat ring of described thrust bearing and the housing of described gearbox; The inner ring of described radial bearing is sleeved on the shaft shoulder of described output shaft, the outside of the inner ring of described radial bearing and the output gear of described output shaft lean, the inner side of the inner ring of described radial bearing and the blowout patche of described thrust bearing lean, it is characterized in that, the inner side of the outer ring of described radial bearing is provided with rib, pad is provided with between the housing of described rib and described gearbox, the outer ring of described radial bearing and the housing of described gearbox are fixedly installed togather, and the outside of the outer ring of described radial bearing is provided with uncovered.

2. automatic transmission case output shaft support device according to claim 1, is characterized in that, described uncovered outside is provided with the guide portion be obliquely installed.

3. automatic transmission case output shaft support device according to claim 1 and 2, is characterized in that, described radial bearing is roller bearing.