CN217898420U

CN217898420U - Axial limiting thrust pad and thrust structure

Info

Publication number: CN217898420U
Application number: CN202221718180.3U
Authority: CN
Inventors: 吴荣华; 陈逸; 郭成荣; 付飞洋; 俞方; 段支博
Original assignee: Zhejiang Wanliyang Transmission Co Ltd
Current assignee: Zhejiang Wanliyang Transmission Co Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-25
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses an axial spacing thrust pad and thrust structure, the thrust pad comprises two half month thrust washers and thrust locking plate, half month thrust washer is located inside the thrust locking plate, is equipped with annular salient tip and annular salient main aspects on the thrust washer of half month, annular salient tip is arranged in packing into the epaxial recess of rotation, thrust locking plate width in the axial is greater than the width of annular salient main aspects, annular salient main aspects and thrust locking plate are at radial clearance fit and with thrust locking plate fixed connection in the axial. The thrust structure comprises a thrust pad, a thrust bearing, a stress transmission part and a bearing and rotating shaft, wherein the small end of the annular protrusion of the retaining pad is arranged in a groove on the rotating shaft, and the two half-moon thrust pads, the thrust bearing and the stress transmission part form the limitation of the axial position. The utility model discloses simple structure, installation are convenient, have better thrust limit function to great axial force.

Description

Axial limiting thrust pad and thrust structure

Technical Field

The utility model relates to an axial spacing thrust pad and thrust structure.

Background

With the rapid development of the automobile industry, the transmission is increasingly required to realize small-size light weight and high bearing function, and the design, assembly and bearing limit of various parts are increasingly strict. The new market environment puts higher requirements on the limit thrust structure of the shaft, and the limit thrust structure is required to bear larger axial force and be convenient to assemble.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides an axial spacing thrust pad and thrust structure can realize installing under the convenient condition thrust limit function of the great axial force of epaxial spare part.

In order to realize the above-mentioned purpose, the utility model discloses the technical scheme who takes is an axial spacing thrust pad, comprises two half-moon thrust washers and thrust locking plate, and two half-moon thrust washers are used for installing on the rotation axis symmetrically, half-moon thrust washer is located inside the thrust locking plate, is equipped with annular salient tip and annular salient main aspects on the thrust washer for half a month, annular salient tip is arranged in packing into the epaxial recess of rotation, the thrust locking plate is greater than at the ascending width of axial annular salient main aspects, annular salient main aspects and thrust locking plate are at radial clearance fit and with thrust locking plate fixed connection in the axial.

In an embodiment of the present invention, the thrust locking plate is a sheet-shaped bending structure, and includes an annular inner cavity formed by bending, and the half-moon thrust plate is located in the annular inner cavity.

In an embodiment of the present invention, the width of the thrust locking plate in the axial direction is smaller than the width of the thrust locking plate in the axial direction.

In an embodiment of the present invention, the thrust pad is a cylindrical ring.

In an embodiment of the present invention, an inner diameter of the annular protruding small end of the half-moon thrust washer is smaller than an inner diameter of the annular protruding large end.

The utility model provides an axial spacing thrust structure, includes thrust pad, thrust bearing, atress transmission part and bearing rotation axis, set up fluted and fender shoulder on the rotation axis, the annular salient tip dress of stopping pad is in the epaxial recess of rotation, atress transmission part and thrust bearing are all installed on the rotation axis, atress transmission part is spacing through keeping off the shoulder, thrust bearing installs between atress transmission part and thrust pad

In an embodiment of the present invention, the axial bending front end of the riveting thrust locking plate is fixedly connected to the thrust washer and the thrust locking plate.

In an embodiment of the present invention, two half-moon thrust washers are separately installed on the rotating shaft.

The technical scheme has the following beneficial effects:

the utility model discloses a with the design of the spacing thrust gasket of axial for forming by two half month stopping pads and thrust locking plate, not only simple structure, and two half month thrust gaskets split type installations easily great degree satisfy spacing axle diameter requirement, also needn't increase the structural feature of spacing axle, the axial limit function of the great axial force of realization that just can be good.

Drawings

Fig. 1 is a schematic structural view of a thrust pad according to an embodiment of the present invention;

FIG. 2 is a front view of a thrust pad according to an embodiment of the present invention;

fig. 3 is a perspective view of a crescent thrust washer according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a thrust structure according to an embodiment of the present invention.

Description of reference numerals: 1. a thrust pad; 11. a half-moon thrust washer; 12. a thrust locking piece; 101. an annular protruding small end 102, an annular protruding large end; 2. a rotating shaft; 3. a thrust bearing; 4 a force transmitting part; 5. an annular inner cavity.

Detailed Description

The invention will be further described with reference to the following examples and figures 1 and 4.

As shown in figures 1-3, an axial limit thrust pad is of a ring-column shape and consists of two identical half-moon thrust washers 11 and a thrust locking piece 12. The half-moon thrust washer 11 is of a semi-annular structure and is composed of a left side small-diameter annular protruding feature and a right side large-diameter annular protruding feature, namely, an annular protruding small end 101 and an annular protruding large end 102 are arranged on the half-moon thrust washer. The thrust locking piece 12 is a sheet-shaped bending structure, and an annular cavity 5 is formed by bending a sheet-shaped material, and the half-moon thrust piece is arranged in the annular cavity. The two half-moon thrust washers 11 can be respectively installed in the grooves on the rotating shaft 2 through the small annular protruding ends 101 to form axial position limitation together with the thrust bearing 3 and the force transmission part 4, and then the large annular protruding ends 102 form small clearance fit with the annular inner cavity of the thrust locking piece 12 in the radial direction and form small clearance fit with the rotating shaft 2 to comprehensively form radial locking.

The axial bending width of the thrust locking piece 12 is wider than the annular protruding large end 102 on the right side of the thrust washer 11, and after the parts are axially installed in place, the axial bending front end of the thrust locking piece 12 is riveted to form axial fixing of the thrust washer 11 and the thrust locking piece 12. The utility model provides a spacing thrust pad of derailleur axial simple structure, two half month thrust pads split type installation easily great degree satisfy spacing rotation axis inner chamber diameter requirement, as shown in fig. 4, the 2 inner chamber trompils of rotation axis can accomplish great diameter. In contrast to using a snap ring with a shaft of the same axial dimension, it may be necessary to force the assembly using mechanical equipment to provide a sufficiently large snap ring deforming assembly force.

To sum up, the utility model provides a spacing thrust washer of derailleur axial simple structure parts the assembly and needn't increase the structural feature of spacing axle, unnecessarily adopts mechanical equipment, just can realize better axial limit function to great axial force.

The above-mentioned embodiments are merely used to explain the present invention, rather than to limit the present invention, and any changes and substitutions that do not involve creative efforts made by the present invention are all within the scope of the present invention.

Claims

1. The utility model provides an axial spacing thrust pad, its characterized in that comprises two half-moon thrust washers and thrust locking plate, and two half-moon thrust washers are used for installing on the rotation axis symmetrically, half-moon thrust washer is located thrust locking plate inside, is equipped with annular outstanding tip and annular outstanding main aspects on the thrust washer of half-moon, annular outstanding tip is arranged in packing into the recess on the rotation axis, thrust locking plate width in the axial is greater than the width of annular outstanding main aspects, annular outstanding main aspects and thrust locking plate are at radial clearance fit and with thrust locking plate fixed connection in the axial.

2. The axial limit thrust pad of claim 1, wherein the thrust locking piece is a sheet-like folded structure including an annular cavity formed by folding, and the meniscus thrust piece is located in the annular cavity.

3. The axial limit thrust pad of claim 1, wherein a width of the thrust locking tab in the axial direction is less than a width of the thrust locking tab in the axial direction.

4. The axial limit thrust pad of claim 1, wherein the thrust pad is generally ring-and-cylinder shaped.

5. The axial limit thrust washer of any one of claims 1 to 4, wherein an inner aperture of a small end of the annular protrusion on the meniscus thrust washer is smaller than an inner aperture of a large end of the annular protrusion.

6. An axial limit thrust structure, which comprises the thrust pad of any one of claims 1 to 5, and is characterized by further comprising a thrust bearing, a force transmission part and a bearing rotating shaft, wherein the rotating shaft is provided with a groove and a retaining shoulder, the small end of the annular protrusion of the thrust pad is arranged in the groove on the rotating shaft, the force transmission part and the thrust bearing are both arranged on the rotating shaft, the force transmission part is limited through the retaining shoulder, and the thrust bearing is arranged between the force transmission part and the thrust pad.

7. The axial limit thrust structure of claim 6, wherein riveting the axially bent front end of the thrust locking piece axially secures the thrust washer to the thrust locking piece.

8. The axial positive thrust structure of claim 6, wherein two half-moon thrust washers are separately mounted on the rotating shaft.