CN2789499Y

CN2789499Y - Improved pulling self-aligning clutch release bearing assembly

Info

Publication number: CN2789499Y
Application number: CN 200520069655
Authority: CN
Inventors: 张松; 黄淑英; 李亮
Original assignee: CHANGZHOU NEEDLE BEARING PLANT Co Ltd
Current assignee: Changzhou Guangyang Bearing Co Ltd
Priority date: 2005-01-06
Filing date: 2005-01-06
Publication date: 2006-06-21
Anticipated expiration: 2015-01-06

Abstract

The utility model relates to a self-aligning clutch release bearing assembly of an improved pulling type for medium-sized or heavy-duty motor vehicles, which comprises a bearing inner ring, a bearing outer ring, a keeping frame, a rolling body, a release sleeve and a butterfly spring, wherein the bearing inner ring of which the shaft end is provided with a clamp groove is connected with the bearing outer ring through the keeping frame, and sealing rings are respectively arranged between both sides of the bearing inner ring and the bearing outer ring. The butterfly spring is arranged between the side surface of a shaft shoulder of the release sleeve of which the inner hole is embedded with a wear resistant sleeve and the inner side surface of the bearing outer ring, a radial gap capable of automatically adjusting the shaft center is arranged between the bearing outer ring and the release sleeve, and the bearing outer ring is squeezed by the release sleeve to supply pre-stressing for the butterfly spring. When a clutch is jointed, the elastic force of the butterfly spring is overcome, a release bearing makes radial adjustment in the release sleeve to compensate, so the coaxial purpose of the clutch and the release bearing is achieved, and the service lives of the release bearing and the clutch can be obviously prolonged.

Description

Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly

Technical field

The utility model relates to a kind of automobile-use clutch release bearing assembly, especially relates to a kind of Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly that is used on medium-sized or the heavy vehicle.

Background technique

The employed pull-type self-aligning separable bearing of clutch assembly of medium-sized or heavy vehicle, be between release sleeve and bearing outer ring, to be provided with radial clearance, outer cover provides certain precompression by bearing outer ring to butterfly spring, under the elastic force effect of butterfly spring, bearing outer ring is linked to each other all the time with release sleeve, under release bearing and clutch out-of-alignment situation, in the engaging process of clutch, elastic force by butterfly spring carries out automatic compensation adjustment to gap radially, make release bearing and clutch keep coaxial, solution causes the problem of clutch and release bearing premature wear because of release bearing and clutch disalignment, to improve the working life of release bearing and clutch, and can reduce the running noise of release bearing, but disclosed self-aligning separable bearing of clutch is to provide precompression by bearing outer ring to butterfly spring with outer cover, requires outer cover to be connected on the release sleeve securely.

Summary of the invention

The purpose of this utility model provides a kind of Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly that precompression is provided to butterfly spring by bearing outer ring with release sleeve.

The utility model is that the technological scheme that achieves the above object is: a kind of Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly, comprise bearing inner race, bearing outer ring, retainer, rolling element and release sleeve and butterfly spring, the bearing inner race that axle head is provided with draw-in groove is connected with bearing outer ring by retainer and rolling element, and between bearing inner race and the bearing outer ring both sides seal ring is housed respectively, endoporus is embedded with between the inner side surface of the side of its shaft shoulder of release sleeve of wear-resistant sleeve and bearing outer ring and is provided with butterfly spring, be provided with the radial clearance that to regulate the axle center automatically between bearing outer ring and the release sleeve, described release sleeve is by butterfly spring extrusion axis bearing outer-ring, the shaft shoulder of butterfly spring and release sleeve and bearing outer ring press contacts, bearing outer ring provides precompression to butterfly spring.

The utility model adopts release sleeve extrusion axis bearing outer-ring, gives the certain precompression of butterfly spring, has simplified processing and assembly technology, connects reliable.

Description of drawings

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

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

Fig. 2 is an another kind of structural representation of the present utility model.

Wherein: 1-bearing inner race; 2-seal ring; 3-jump ring; 4-bearing outer ring; 5-rolling element; 6-retainer; 7-butterfly spring; 8-seal ring; 9-release sleeve; 9-1-shaft shoulder; 9-2-baffle ring; 9-3-shoulder block; 10-wear-resistant sleeve.

Embodiment

Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly as shown in Figure 1, 2, comprise bearing inner race 1, bearing outer ring 4, retainer 6 and rolling element 5 and release sleeve 9, bearing inner race 1 is multidiameter shaft, the big shaft portion of bearing inner race 1 is connected with bearing outer ring 4 by retainer 6 and rolling element 5, the little shaft portion of bearing inner race 1 extends axially out bearing outer ring 4, has draw-in groove in bearing inner race 1 outside as the unidirectional latch hook that separates draw ring is installed.For making release bearing have excellent sealing performance, bearing outer ring 4 all is equipped with seal ring 2 with bearing inner race 1 both sides, 8, one butterfly spring 7 is arranged between the inner side surface of the side of release sleeve 9 shaft shoulder 9-1 and bearing outer ring 4, release sleeve 9 provides precompression for butterfly spring 7 by bearing outer ring 4, and be provided with the radial clearance that to regulate the axle center automatically between bearing outer ring 4 external diameters and release sleeve 9 internal diameters, this single face radial clearance is between 0.5～1.5mm, when the eccentric force of clutch and release bearing during greater than the elastic force of butterfly spring 7, by the radial clearance between bearing outer ring 4 and the release sleeve 9, release bearing is radially adjusted in release sleeve 9, reached the coaxial purpose of clutch and release bearing.For increasing the working life of release sleeve 9, be embedded with wear-resistant sleeve 10 at release sleeve 9 endoporus, wear-resistant sleeve 10 can adopt engineering plastics to make.

As shown in Figure 1, release sleeve 9 of the present utility model has and its shaft shoulder 9-1 all-in-one-piece baffle ring 9-2, and baffle ring 9-2 length is greater than the length of bearing outer ring 4, and baffle ring 9-2 is connected with bearing outer ring 4 by jump ring 3, and provides precompression to butterfly spring 7.

The utility model also as shown in Figure 2, release sleeve 9 is positioned at the inboard baffle ring 9-2 that also has split, and the shaft shoulder 9-1 outside is to be connected with baffle ring 9-2 by jump ring 3, and the shoulder block 9-3 of the other end of baffle ring 9-2 links to each other with bearing outer ring 4, and baffle ring 9-2 provides precompression by jump ring 3 to butterfly spring 7.

During the clutch proper functioning, under the elastic force effect of diaphragm spring, the master of clutch, passive wearing piece are engaged, when release bearing and clutch disalignment, its eccentric force overcomes the elastic force of butterfly spring 7, and then release bearing radially moves in release sleeve 9, by repeatedly adjusting automatically, make release bearing and clutch keep coaxial, power is exported by clutch; When shift fork was stirred release sleeve 9 outside clutch, release sleeve 9 drove release bearings and outwards moves along main shaft, and the separation draw ring that is connected on the bearing inner race 1 also moves laterally, then diaphragm spring also moves thereupon, at this moment, the master of clutch, passive wearing piece separate, and cut off power output.

Claims

1, a kind of Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly, comprise bearing inner race (1), bearing outer ring (4), retainer (6), rolling element (5) and release sleeve (9) and butterfly spring (7), the bearing inner race (1) that axle head is provided with draw-in groove is connected with bearing outer ring (4) by retainer (6) and rolling element (5), and between bearing inner race (1) and bearing outer ring (4) both sides seal ring (2) is housed respectively, (8), the butterfly spring (7) that endoporus is embedded with its shaft shoulder of release sleeve (9) (9-1) side of wear-resistant sleeve (10) withstands on the inner side surface of bearing outer ring (4), be provided with the radial clearance that to regulate the axle center automatically between bearing outer ring (4) and the release sleeve (9), it is characterized in that: described release sleeve (9) is by butterfly spring (7) extrusion axis bearing outer-ring (4), the shaft shoulder (9-1) and bearing outer ring (4) press contacts of butterfly spring (7) and release sleeve (9), bearing outer ring (4) provide precompression for butterfly spring (7).

2, Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly according to claim 1, it is characterized in that: described release sleeve (9) has and its shaft shoulder (9-1) all-in-one-piece baffle ring (9-2), baffle ring (9-2) length is greater than the length of bearing outer ring (4), and baffle ring (9-2) is connected with bearing outer ring (4) by jump ring (3), and provides precompression to butterfly spring (7).

3, Improved Drawed Type self-Center-adjusting Declutched Bearing Assembly according to claim 1, it is characterized in that: described release sleeve (9) is positioned at the inboard baffle ring (9-2) that also has split, and the shaft shoulder (9-1) outside is to be connected with baffle ring (9-2) by jump ring (3), and another shoulder block (9-3) of baffle ring (9-2) links to each other with bearing outer ring (4), and baffle ring (9-2) provides precompression by jump ring (3) to butterfly spring (7).