CN201068941Y

CN201068941Y - Clutch release bearing assembly for bus

Info

Publication number: CN201068941Y
Application number: CNU2007200403690U
Authority: CN
Inventors: 吴朝阳; 张松; 黄淑英
Original assignee: Changzhou Guangyang Bearing Co Ltd
Current assignee: Changzhou Guangyang Bearing Co Ltd
Priority date: 2007-07-26
Filing date: 2007-07-26
Publication date: 2008-06-04
Anticipated expiration: 2017-07-26

Abstract

The utility model relates to a clutch separating bearing assembly used for the public traffic bus. The utility model comprises a bearing inner ring, a bearing outer ring, a rolling element, a retainer, a disk spring and a separating sleeve, wherein, an obturating ring is arranged between the bearing inner ring and the bearing outer ring, the disk spring is connected with the separating sleeve through a retaining ring and is pressed against the inner side of the bearing outer ring, an automatically adjustable radial clearance is arranged between the inside diameter of the bearing outer ring and the separating sleeve, the retainer is of a metal frame and of a spherical body with a bigger outer end and a smaller inner end, the spherical body is uniformly provided with pockets and the inner end side of the spherical body is provided with a constricting inward flange; a cylindrical shield ring is sleeved on the separating sleeve, a shield neck is arranged between the disk spring and the retaining ring and an axial sealed clearance is arranged between the cylindrical shield end face of the cylindrical shield ring and the end face of the bearing inner ring. The utility model has good heat-resistant property and is suitable for the motor vehicle with the clutch which needs to be frequently operated.

Description

Used for buses clutch release bearing assembly

Technical field

The utility model relates to a kind of clutch release bearing assembly that is used on the Motor Vehicle, relates in particular to a kind of clutch release bearing assembly that is used on the bus.

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.And for the clutch release bearing with self-regulated heart function, because of being provided with radial clearance between release sleeve and the bearing outer ring internal diameter, when release bearing push-press separation lever, though release bearing and clutch disalignment, but under the elastic force effect of belleville spring, 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 the problem that causes clutch and release bearing premature wear owing to release bearing and clutch disalignment, improve the working life of release bearing and clutch, and reduced the running noise of release bearing.But for city bus, Motor Vehicle usually in starting soon, arrive and stop again behind another outer website, clutch needs frequent the joint or separation, clutch and clutch release bearing can produce a large amount of heats, and the retainer that the retainer of present disclosed self-aligning separable bearing of clutch adopts common high molecular materials to make, heat resistance is not high, therefore can not be applicable to city bus.

Summary of the invention

The purpose of this utility model provides the good used for buses clutch release bearing assembly of a kind of resistance to heat.

The utility model is that the technological scheme that achieves the above object is: a kind of used for buses clutch release bearing assembly, comprise bearing inner race, bearing outer ring, rolling element, retainer, belleville spring and release sleeve, between bearing inner race and the bearing outer ring seal ring is housed, belleville spring is connected on the release sleeve by back-up ring and withstands on the inner side surface of bearing outer ring, be provided with self-adjustable radial clearance between bearing outer ring internal diameter and the release sleeve, it is characterized in that: described retainer is the metal retainer, and retainer is the little spherical surface body in big the inner, outer end, be evenly equipped with the pocket hole on the spherical surface body, and the inner limit of spherical surface body has the interior flanging of receiving; The cylindrical cover ring set is contained on the release sleeve and its cover neck is arranged between belleville spring and the back-up ring, and the tube cover end face and the bearing inner race end face of tubular shroud ring are provided with an axial seal gap.

The utility model adopts the metal retainer, and this retainer is the little spherical surface body in big the inner, outer end, therefore, retainer is when remaining between the bearing enclose to each rolling element, making has bigger space between the bearing enclose, can deposit more grease, and the tube cover end face and the bearing inner race end face of tubular shroud ring are provided with an axial seal gap in addition, can seal and unlikely leakage lubricating grease, make the metal retainer have resistance to high temperature preferably.The utility model is by under the elastic force effect that is installed in the belleville spring on the release sleeve, can carry out automatic compensation adjustment to gap radially, guarantees that release bearing and clutch shaft keep coaxial, are applicable to city bus.

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.

Wherein: 1-bearing inner race, 2-seal ring, 3-rolling element, 4-retainer, 5-tubular shroud ring, 6-back-up ring, 7-belleville spring, 8-bearing outer ring, 9-release sleeve, 10-radial clearance, 11-axial seal gap.

Embodiment

See used for buses clutch release bearing assembly of the present utility model shown in Figure 1, comprise bearing inner race 1, bearing outer ring 8, rolling element 3, retainer 4, belleville spring 7 and release sleeve 9, between bearing inner race 1 and the bearing outer ring 8 seal ring 2 is housed, the outer ring of sealing circle 2 is connected in the groove of bearing outer ring 8, make release bearing have dust sealing performance preferably, belleville spring 7 is connected on the release sleeve 9 by back-up ring 6 and withstands on the inner side surface of bearing outer ring 8, release bearing is joined with release sleeve 9 all the time, be provided with self-adjustable radial clearance 10 between bearing outer ring 8 internal diameters and the release sleeve 9, this radial clearance 10 compensates clutch and release bearing out-of-alignment problem automatically by this radial clearance 10 between 0.75～1.25mm.See shown in Figure 1, retainer 4 of the present utility model is the metal retainer, the thickness of this retainer 4 is at 1～1.5mm, and retainer 4 is the little spherical surface body in big the inner, outer end, be evenly equipped with the pocket hole on the spherical surface body, rolling element 3 is positioned at the pocket hole and contacts with bearing inner race 1 and bearing outer ring 8 respectively, and the flanging of receiving in the inner limit of spherical surface body has carries out spacing to rolling element 3.See shown in Figure 1, the utility model tubular shroud ring 5 is sleeved on the release sleeve and its cover neck is arranged between belleville spring 7 and the back-up ring 6, the tube cover end face and the bearing inner race end face of tubular shroud ring 5 have an axial seal gap 11, make the unlikely leakage of lubricating grease, the tube cover diameter of tubular shroud ring 5 is more than or equal to the inboard external diameter of bearing inner race 1.

Claims

1. used for buses clutch release bearing assembly, comprise bearing inner race (1), bearing outer ring (8), rolling element (3), retainer (4), belleville spring (7) and release sleeve (9), between bearing inner race (1) and the bearing outer ring (8) seal ring (2) is housed, belleville spring (7) is connected the inner side surface that bearing outer ring (8) were gone up and withstood on to release sleeve (9) by back-up ring (6), be provided with self-adjustable radial clearance (10) between bearing outer ring (8) internal diameter and the release sleeve (9), it is characterized in that: described retainer (4) is the metal retainer, and retainer (4) is the little spherical surface body in big the inner, outer end, be evenly equipped with the pocket hole on the spherical surface body, and the inner limit of spherical surface body has the interior flanging of receiving; Tubular shroud ring (5) is sleeved on the release sleeve and its cover neck is arranged between belleville spring (7) and the back-up ring (6), and the tube cover end face and bearing inner race (1) end face of tubular shroud ring (5) are provided with an axial seal gap (11).

2. used for buses clutch release bearing assembly according to claim 1 is characterized in that: the thickness of described retainer (4) is at 1～1.5mm.

3. used for buses clutch release bearing assembly according to claim 1 is characterized in that: the tube cover diameter of described tubular shroud ring (5) is more than or equal to the inboard external diameter of bearing inner race (1).