CN2592943Y

CN2592943Y - Self-aligning clutch release bearing assembly

Info

Publication number: CN2592943Y
Application number: CN 03219148
Authority: CN
Inventors: 张松; 吴朝阳; 黄淑英
Original assignee: Changzhou Guangyang Bearing Co Ltd
Current assignee: Changzhou Guangyang Bearing Co Ltd
Priority date: 2003-01-03
Filing date: 2003-01-03
Publication date: 2003-12-17
Anticipated expiration: 2013-01-03

Abstract

The utility model relates to a self-aligning clutch release bearing assembly for a motor vehicle. The utility model comprises a bearing inner ring, a bearing outer ring, a holder between the bearing inner ring and the bearing outer ring, a rolling body and a release sleeve provided with a shifting fork slot, wherein, a butterfly-shaped spring is fixed on the release sleeve and is pushed on the inner side surface of the bearing outer ring; a radial clearance which can automatically adjust the shaft center is arranged between the inner diameter of the bearing outer ring and the release sleeve; the release sleeves are steel parts, and the release sleeves are arranged on shaft shoulders on both sides of the shifting fork slot and are provided with wear resistant cushion blocks. Accordingly the utility model can automatically carry out compensation adjustment through the radial clearance, and a release bearing and a clutch shaft are ensured to keep coaxial; the problem that as the release bearing and a clutch are not coaxial, the clutch and the release bearing are early worn is solved; the service life of the release bearing and the clutch is obviously extended, and the running noise of the release bearing is reduced; simultaneously, the problem of early wear of the shifting fork slot is solved.

Description

The self-aligning separable bearing of clutch assembly

Technical field

The utility model relates to clutch release bearing assembly used on a kind of Motor Vehicle, relates in particular to a kind of clutch release bearing assembly that can regulate the axle center automatically.

Background technique

Clutch is between motor and gearbox, clutch is when transferring power and cut-out power, its operating mechanism is stirred release sleeve by disengaging yoke, release sleeve promotion declutch shaft is made to be moved axially, the push-press separation lever is around its spot wobble, thereby drive separation pull bar makes platen engage with driven disc or separates.But the clutch release bearing of automobile-use mostly is a thrust ball bearing, because the release bearing of this structure is contained on the release sleeve, its bearing inner race is that close-fitting is on release sleeve, therefore when the shaft axis disalignment of bearing axis and clutch, not only increase the friction of release bearing, and quicken the wearing and tearing of release bearing, but also can produce noise, shorten the working life of release bearing.Simultaneously, because both malalignments add the wearing and tearing of speed clutch again.Secondly such release sleeve adopts aluminum alloy to make, so when shift fork moves axially in the process frequently stirring release sleeve, can cause the fork slot wearing and tearing on the release sleeve on the one hand, quicken the wearing and tearing of its shaft shoulder of release sleeve on the other hand, influence the proper functioning of clutch.

Summary of the invention

The purpose of this utility model provides a kind of can the adjusting automatically makes release bearing and clutch keep coaxial, and can improve the self-aligning separable bearing of clutch assembly in release bearing and release sleeve working life.

The utility model is that the technological scheme that achieves the above object is: a kind of self-aligning separable bearing of clutch assembly, the release sleeve that comprises retainer between bearing inner race, bearing outer ring, bearing inner race and the bearing outer ring and rolling element and band fork slot, it is characterized in that: a butterfly spring is fixed on the release sleeve and withstands on the inner side surface of bearing outer ring, is provided with the radial clearance that can regulate the axle center automatically between bearing outer ring internal diameter and the release sleeve; Described release sleeve is a steel and iron parts, and release sleeve is positioned on the shaft shoulder of fork slot both sides wear-resisting cushion block is housed.

The advantage that the utility model enforcement is gone up after the art technological scheme is: owing to be provided with radial clearance between release sleeve and the bearing outer ring internal diameter, when release bearing push-press separation lever, under release bearing and clutch out-of-alignment situation, under the elastic force effect of the butterfly spring on the release sleeve, bearing outer ring is linked to each other all the time with release sleeve, therefore can carry out automatic compensation adjustment by this radial clearance, guarantee that release bearing and clutch shaft keep coaxial, solved owing to release bearing with close the problem that disalignment causes clutch and release bearing premature wear from device, obviously improve the working life of release bearing and clutch, and reduced the running noise of release bearing.Secondly release sleeve of the present utility model is to adopt cast iron or Cast Steel to make, can increase the fork slot scurf resistance significantly, the shaft shoulder of release sleeve is equipped with cushion block again in addition, therefore at shift fork when moving axially, be difficult for causing the wearing and tearing of fork slot on the one hand, on the other hand since shift fork can only collide on cushion block, so reduced wearing and tearing to release sleeve.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the A of Fig. 1 is to structural representation.

Embodiment

See Fig. 1, self-aligning separable bearing of clutch assembly shown in 2, comprise bearing inner race 1, the release bearing that bearing outer ring 8 and retainer 4 and rolling element 3 constitute, rolling element 3 is contained on the retainer 4 between bearing inner race 1 and the bearing outer ring 8, release bearing is sleeved on the release sleeve 11, has fork slot 11-1 on the release sleeve 11, one butterfly spring 7 is sleeved on the release sleeve 11, the one side is by split washer 6 location that are contained in release sleeve 8 grooves, opposite side then withstands on the inner side surface of bearing outer ring 11, release bearing is joined with release sleeve 11 all the time, butterfly spring 7 also can directly be installed on the release sleeve 11, structure is not limit, be provided with the radial clearance 9 that to regulate the axle center automatically between bearing outer ring 8 internal diameters and the release sleeve 11, this radial clearance 9 can compensate clutch and release bearing out-of-alignment phenomenon automatically by this radial clearance 9 between 0.75～1.25mm.

For making release bearing have anti-dust performance preferably, between bearing inner race 1 and bearing outer ring 8, viton seal ring 2 is housed, these viton seal ring 2 its endoporus are connected in the groove of bearing inner race 1; Or as shown in Figure 1, viton seal ring 2 its outer rings are connected in the groove of bearing outer ring 8, between butterfly spring 7 and bearing inner race 1 interior edge face, be provided with dustproof gasket 5, by the sealing between bearing enclose and release bearing and the release sleeve 11, make this release bearing assembly adapt to different working environments.

Release sleeve 11 of the present utility model is cast steel or ironcasting, can increase the wear-resisting property of fork slot 11-1, on the shaft shoulder at the fork slot 11-1 place of two symmetries, two wear-resisting cushion blocks 10 are housed also, for ease of changing cushion block 10, its cushion block 10 is preferably T shape cushion block, and is contained in the groove of release sleeve 11 shaft shoulders.

Also be provided with the oil pocket greater than the storage lubricant grease of axis hole on release sleeve 11 axis holes, see shown in Fig. 1,2, release sleeve 11 is provided with greasing hole 11-2, and communicates with oil pocket on its axis hole.

Claims

1, a kind of self-aligning separable bearing of clutch assembly, the release sleeve (11) that comprises retainer (4) between bearing inner race (1), bearing outer ring (8), bearing inner race (1) and the bearing outer ring (8) and rolling element (3) and band fork slot (11-1), it is characterized in that: a butterfly spring (7) is fixed on the inner side surface that bearing outer ring (8) were gone up and withstood on to release sleeve (11), is provided with the radial clearance (9) that can regulate the axle center automatically between bearing outer ring (8) internal diameter and the release sleeve (11); Described release sleeve (11) is a steel and iron parts, and release sleeve (11) is positioned on the shaft shoulder of fork slot (11-1) both sides wear-resisting cushion block (10) is housed.

2, self-aligning separable separating assembly according to claim 1 is characterized in that: split washer (6) is housed on the described release sleeve (11) and withstands on a side of butterfly spring (7).

3, self-aligning separable bearing of clutch assembly according to claim 1 is characterized in that: between described bearing inner race (1) and the bearing outer ring (8) viton seal ring (2) is housed.

4, self-aligning separable bearing of clutch assembly according to claim 1 is characterized in that: be provided with dustproof gasket (5) between the interior edge face of butterfly spring (7) and bearing inner race (1).

5, self-aligning separable bearing of clutch assembly according to claim 1 is characterized in that: described cushion block (10) is a T shape cushion block.

6, self-aligning separable bearing of clutch assembly according to claim 1 is characterized in that: described radial clearance (9) is between 0.75～1.25mm.

7, self-aligning separable bearing of clutch assembly according to claim 1 is characterized in that: release sleeve (11) is provided with greasing hole (11-2), and communicates with its inner chamber.