CN203384228U

CN203384228U - Novel release bearing

Info

Publication number: CN203384228U
Application number: CN201320504478.9U
Authority: CN
Inventors: 陈炳顺; 王文波
Original assignee: Hangzhou Sincere Automobile Bearing Co Ltd
Current assignee: Hangzhou Sincere Automobile Bearing Co Ltd
Priority date: 2013-08-16
Filing date: 2013-08-16
Publication date: 2014-01-08
Anticipated expiration: 2023-08-16

Abstract

The utility model discloses a novel release bearing, and belongs to a separate bearing of an automobile clutch. The end face of a rotary sleeve ring of an existing release bearing is in direct contact with a leaf spring of a clutch pressure plate, so that severe sliding friction, abrasion and serious heating are generated in an off/on process. A wear-resisting member is arranged on an inner ring or an outer ring of the release bearing of the clutch disclosed by the utility model and used for forming the end face contacting a leaf spring of a pressure plate of the clutch; the wear-resisting member is composed of at least one skeleton bottom plate and an anti-friction coating on the surface of the skeleton bottom plate; the leaf spring of the clutch pressure plate is in contact with the anti-friction coating on the surface of the wear-resisting member in work, so as to play the roles of small friction, less abrasion and low heat. Thus, the service life of the clutch pressure plate and the service life of the release bearing are greatly prolonged.

Description

Novel release bearing

Technical field

This patent relates to a kind of novel vehicle clutch disengaging bearing.

Background technique

The realization that existing automobile clutch separates, be all that the end face of the swivel ferrule (inner ring or outer ring) of release bearing directly contacts with the clutch compressing disc spring sheet, each " from " and " closing ", all violent sliding friction will occur, wearing and tearing, heating are seriously.

Because hardness after the end hardening of bearing is the HRC57-65 left and right; And consider flexible needs, and the hardness of the spring sheet of clutch compressing disc (also making spring refer to) can only be at HRC47-52, both violent dry friction, and the contact position of spring sheet and bearing tends to spring sheet wear down, distortion and lost efficacy.

Dust and particle that violent dry friction produces, aggravated again the wearing and tearing of bearing seal and the turbidity test in inner rolling chamber, and then the wearing and tearing of aggravation raceway groove, and grease is deteriorated.

The heat that violent dry friction produces, improved the ambient temperature of work bearing greatly, accelerates the premature aging of release bearing grease and caulking gum.

For this reason, improve the life-span of release bearing and platen, must allow both in contacting point, reduce wearing and tearing and reduce heating.

The model utility content

The technical assignment of the technical problems to be solved in the utility model and proposition is that the end face that overcomes the swivel ferrule of existing release bearing directly contacts with the clutch compressing disc spring sheet, " from ", violent sliding friction occurs when " closing ", wearing and tearing, the serious defect of generating heat, provide a kind of the assurance in stressed constant situation to reduce to rub, reduce wear, reduce temperature, and then greatly improve the novel release bearing of the actual life of platen and release bearing.

For achieving the above object, novel release bearing of the present utility model, it comprises a rolling bearing, it is characterized in that: the inner ring of described rolling bearing or outer ring are provided with the end face that wear member is used to form the contact of clutch compressing disc spring sheet, and described wear member at least consists of the friction coat on base plate of support and surface.

As the optimization technique means: described base plate of support is made by SPCC or 50CrVA or 65Mn steel plate materials.

As the optimization technique means: described friction coat is made by the material modified or composite material of PTFE.

As the optimization technique means: between described base plate of support and friction coat, adhesive layer is arranged.

As the optimization technique means: several micro-bulges distribute on the pitch circle that described end face contacts with the clutch compressing disc spring sheet.Concrete, described micro-bulge is rectangular and radially distributes.Perhaps, described micro-bulge is outstanding round dot.

As the optimization technique means: described wear member is assemblied on described inner ring or outer ring and with the end face of described inner ring or outer ring to be close to.

As the optimization technique means: the end face of described inner ring or outer ring is plane.

As the optimization technique means: the end face of described inner ring or outer ring is curved surface.

The beneficial effects of the utility model are: the end face that is used to form the contact of clutch compressing disc spring sheet by establishing wear member on the inner ring at rolling bearing or outer ring, during work, the contact of clutch compressing disc spring sheet is on the friction coat on wear member surface, to play little, the few effect of generating heat of wearing and tearing, and then greatly extend the working life of clutch compressing disc and release bearing.

The accompanying drawing explanation

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

Fig. 2 A, 2B are the left views of Fig. 1, are shown as out the end-face structure of two kinds of wear members of the utility model;

Fig. 3 is another kind of structural representation of the present utility model;

Fig. 4 is the third structural representation of the present utility model;

Fig. 5 is the 4th kind of structural representation of the present utility model;

Fig. 6 is the end-face structure of the another kind of wear member of the utility model;

Fig. 7 is that the A-A of Fig. 6 is to sectional view;

Fig. 8 is the stratiform structure figure of the utility model wear member;

The number in the figure explanation:

01,02,03,04-rolling bearing;

11,21,31,41-outer ring;

12,22,32,42-inner ring;

13,23,33,43-rolling element;

14,24,34,44-retainer;

15,25,35,45-wear member;

51,52-micro-bulge;

The 53-base plate of support, 54-adhesive layer, 55-friction coat;

06-clutch compressing disc spring sheet;

The pitch circle that the 07-end face contacts with the clutch compressing disc spring sheet.

Embodiment

Below in conjunction with Figure of description, the utility model is described further.

Novel release bearing of the present utility model, as Fig. 1, shown in 3-5, it comprises a rolling bearing 01/02/03/04, rolling bearing comprises outer ring 11/21/31/41, inner ring 12/22/32/42, rolling element 13/23/33/43, retainer 14/24/34/44, the inner ring of rolling bearing is (referring to Fig. 1, Fig. 3) or outer ring (referring to Fig. 4, Fig. 5) be provided with wear member 15/25/35/45 and be used to form the component part that clutch compressing disc spring sheet 06(clutch compressing disc spring sheet 06 does not belong to novel release bearing of the present utility model, only in Fig. 1, with double dot dash line, illustrate, in Fig. 3-5, omit) contact end face, wear

member

15, 25, 35, 45 at least consist of base plate of support 53 and surperficial friction coat 54.

Concrete: base plate of support 53 is made by SPCC or 50CrVA or 65Mn steel plate materials.Friction coat 54 is made by the material modified or composite material of PTFE.Adhesive layer 55(is arranged referring to Fig. 8 between base plate of support 53 and friction coat 54).Several micro-bulges 51/52 distribute on the pitch circle 07 that end face contacts with the clutch compressing disc spring sheet, micro-bulge can be rectangular and radially distributes (referring to Fig. 2 A, 2B, wherein the rectangular micro-bulge shown in Fig. 2 B has the inclination of several angle), micro-bulge also can be outstanding round dot (referring to Fig. 6,7).Wear member is assemblied on inner ring or outer ring and with the end face of inner ring or outer ring to be close to.The end face of inner ring or outer ring is plane.The end face of inner ring or outer ring is curved surface.

Usually, the base plate of support of wear member is heat-treated to HV370-460, then spreads the materials such as bronze powder in the one side for contacting the clutch compressing disc spring sheet of base plate of support as Bond; Apply again PTFE modified abrasion resistant material on bronze powder, form through the compacting of sintering repeatedly.

By the wearable plate of making, through punch process, make the wear member of the shape and size that need.

When release bearing is assembled, wear member is assemblied on the exterior edge face of the inner ring of rolling bearing or outer ring, at inside edge or the outer edge of wear member, have at least a place to be fixedly connected with lasso (inner ring or outer ring).

Claims

1. novel release bearing, it comprises a rolling bearing (01,02,03,04), it is characterized in that: the inner ring (12,22,32,42) of described rolling bearing (01,02,03,04) or outer ring (11,21,31,41) are provided with the end face that wear member (15,25,35,45) is used to form clutch compressing disc spring sheet (06) contact, and described wear member (15,25,35,45) at least consists of the friction coat (54) on base plate of support (53) and surface.

2. novel release bearing according to claim 1 is characterized in that: described base plate of support (53) is made by SPCC or 50CrVA or 65Mn steel plate materials.

3. novel release bearing according to claim 1, it is characterized in that: described friction coat (54) is made by the material modified or composite material of PTFE.

4. novel release bearing according to claim 1, is characterized in that: between described base plate of support (53) and friction coat (54), adhesive layer (55) is arranged.

5. novel release bearing according to claim 1, is characterized in that: distribution several micro-bulges (51,52) on the pitch circle that described end face contacts with the clutch compressing disc spring sheet.

6. novel release bearing according to claim 5 is characterized in that: described micro-bulge (51) is for rectangular and radially distribute.

7. novel release bearing according to claim 5, it is characterized in that: described micro-bulge (52) is outstanding round dot.

8. novel release bearing according to claim 1 is characterized in that: described wear member (15,25,35,45) be assemblied in described inner ring (12,22,32,42) or outer ring (11,21,31,41) upper and be close to the end face of described inner ring (12,22,32,42) or outer ring (11,21,31,41).

9. novel release bearing according to claim 1 is characterized in that: with the described inner ring (12) of clutch compressing disc spring contact or the end face of outer ring (31) be plane.

10. novel release bearing according to claim 1 is characterized in that: with the described inner ring (22) of clutch compressing disc spring contact or the end face of outer ring (41) be curved surface.