CN210799720U

CN210799720U - Miniature thrust bearing

Info

Publication number: CN210799720U
Application number: CN201920978822.5U
Authority: CN
Inventors: 徐境福; 周威; 汤伟纯; 钱志仁
Original assignee: Nantong Sk Seiko Co ltd
Current assignee: Nantong Sk Seiko Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-06-19
Anticipated expiration: 2029-06-27

Abstract

A miniature thrust bearing comprises an inner ring, an outer ring and a plurality of rolling bodies arranged between the inner ring and the outer ring, wherein a lining is connected to the outer circular surface of the inner ring in a press riveting mode, and a first V-shaped groove is formed between the lining and the inner ring; a second V-shaped groove is processed on the inner circle of the outer ring; the rolling body is arranged between the first V-shaped groove and the second V-shaped groove. Compared with the prior art, the utility model discloses a miniature thrust bearing adopts the design of full ditch ball, and the bush is riveted to the inner circle pressure, and the channel between inner circle and the outer lane all adopts "V" type, consequently the big just stability of push-out force has promoted the life of bearing greatly.

Description

Miniature thrust bearing

Technical Field

The utility model relates to a bearing technical field specifically indicates a miniature thrust bearing.

Background

The bearing is an important part in modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, and provide a miniature thrust bearing.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a miniature thrust bearing comprises an inner ring, an outer ring and a plurality of rolling bodies arranged between the inner ring and the outer ring, wherein a lining is connected to the outer circular surface of the inner ring in a press riveting mode, and a first V-shaped groove is formed between the lining and the inner ring; a second V-shaped groove is processed on the inner circle of the outer ring; the rolling body is arranged between the first V-shaped groove and the second V-shaped groove.

Further, a vertical surface, a first chamfer surface, a bearing surface and a convex shoulder body are processed on the outer circular surface of the inner ring, and a first annular oil filling groove is formed between the vertical surface and the end surface of the inner circle of the outer ring; and a limiting groove is arranged between the bearing surface and the shoulder body, and the end surface of the limiting groove is lower than the end surface of the shoulder body.

Furthermore, the inner side surface of the bushing is a positioning surface which is connected in the limiting groove; a bayonet inclined surface is processed at the upper end of the positioning surface, and the bushing is clamped with the end point of the convex shoulder body through the bayonet inclined surface; a second chamfer surface and a convex body are sequentially arranged on the outer side of the bushing, and the second chamfer surface and the first chamfer surface form a first V-shaped groove; and a second annular oil injection groove is formed between the outer side surface of the convex body and the end surface of the inner circle of the outer ring, and an annular cover plate groove is formed between the inner side surface of the convex body and the shoulder body.

Furthermore, the first V-shaped groove and the second V-shaped groove are arranged on a radial central axis of the bearing.

Further, the rolling bodies are steel balls.

Compared with the prior art, the utility model discloses a miniature thrust bearing adopts the design of full ditch ball, and the bush is riveted to the inner circle pressure, and the channel between inner circle and the outer lane all adopts "V" type, consequently the big just stability of push-out force has promoted the life of bearing greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the inner ring of the present invention;

FIG. 3 is an enlarged view of FIG. 1A;

the bearing comprises a bearing body, an inner ring, a bearing body, a bearing cover plate, a lining, a first annular oil injection groove, a second annular oil injection groove, a first chamfer surface, a bearing shoulder body, a limiting groove, a bearing surface, a bearing shoulder body, a limiting groove, a bearing shoulder body, a bearing cover plate groove, a second chamfer surface, a bearing cover plate groove, a first chamfer surface, a bearing shoulder body, a first chamfer surface, a second chamfer surface, a bearing shoulder body, a second chamfer surface, a limiting groove, a bearing shoulder body.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, 2 and 3, a miniature thrust bearing comprises an inner ring 1, an outer ring 2 and a plurality of rolling bodies 3 arranged between the inner ring 1 and the outer ring 2, wherein a lining 4 is connected to the outer circumferential surface of the inner ring 1 in a press-riveting manner, and a first V-shaped groove 5 is formed between the lining 4 and the inner ring 1; a second V-shaped groove 6 is processed on the inner circle of the outer ring 2; the rolling body 3 is arranged between the first V-shaped groove 5 and the second V-shaped groove 6, and the pushing-out force of the bearing is large and stable through the arrangement of the V-shaped grooves.

A vertical surface 11, a first chamfer surface 12, a bearing surface 13 and a shoulder body 14 are machined on the outer circular surface of the inner ring 1, and a first annular oil filling groove 7 is formed between the vertical surface 11 and the inner circular end surface of the outer ring 2; a limiting groove 15 is arranged between the bearing surface 13 and the shoulder body 14, and the end surface of the limiting groove 15 is lower than the end surface of the shoulder body 14.

The inner side surface of the bushing 4 is a positioning surface 41, the positioning surface 41 is connected in the limiting groove 15, and the bottom of the bushing 4 is borne on the bearing surface 13; a bayonet slope 42 is processed at the upper end of the positioning surface 41, and the bushing 4 is clamped with the end point of the shoulder body 14 through the bayonet slope 42; a second chamfer surface 43 and a convex body 44 are sequentially arranged on the outer side of the bush 4, and the second chamfer surface 43 and the first chamfer surface 12 form the first V-shaped groove 5; a second annular oil filling groove 8 is formed between the outer side surface of the convex body 44 and the inner circle end surface of the outer ring 2, an annular cover plate groove 9 is formed between the inner side surface of the convex body 44 and the shoulder body 14, and the annular cover plate groove 9 is used for covering and connecting a cover plate.

Lubricating grease can be added into the first annular oil groove 7 and the second annular oil groove 8, the lubrication degree of the rolling bodies 3 is improved, the friction force is reduced, and the first annular oil groove 7 and the second annular oil groove 8 are sealed through being covered with a dustproof cover plate.

The first V-shaped groove 5 and the second V-shaped groove 6 are arranged on the radial central axis of the bearing, so that the bearing is uniformly stressed.

The rolling bodies 3 are steel balls, in the embodiment, the diameter of each steel ball is 0.5mm, and the full-groove ball design is adopted when the steel balls are arranged.

The utility model discloses a miniature thrust bearing, after using the test, the release power can reach 200N, and life is high, reaches more than 20 ten thousand times.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.

Claims

1. The utility model provides a miniature thrust bearing, includes the inner circle, the outer lane and sets up a plurality of rolling elements between inner circle and outer lane, its characterized in that: the outer circular surface of the inner ring is connected with a lining in a press riveting mode, and a first V-shaped groove is formed between the lining and the inner ring; a second V-shaped groove is processed on the inner circle of the outer ring; the rolling body is arranged between the first V-shaped groove and the second V-shaped groove.

2. The micro thrust bearing of claim 1, wherein: a vertical surface, a first chamfer surface, a bearing surface and a convex shoulder body are processed on the outer circle surface of the inner ring, and a first annular oil filling groove is formed between the vertical surface and the inner circle end surface of the outer ring; and a limiting groove is arranged between the bearing surface and the shoulder body, and the end surface of the limiting groove is lower than the end surface of the shoulder body.

3. The micro thrust bearing of claim 2, wherein: the inner side surface of the bushing is a positioning surface which is connected in the limiting groove; a bayonet inclined surface is processed at the upper end of the positioning surface, and the bushing is clamped with the end point of the convex shoulder body through the bayonet inclined surface; a second chamfer surface and a convex body are sequentially arranged on the outer side of the bushing, and the second chamfer surface and the first chamfer surface form a first V-shaped groove; and a second annular oil injection groove is formed between the outer side surface of the convex body and the end surface of the inner circle of the outer ring, and an annular cover plate groove is formed between the inner side surface of the convex body and the shoulder body.

4. The micro thrust bearing of claim 1, wherein: the first V-shaped groove and the second V-shaped groove are arranged on a radial central axis of the bearing.

5. The micro thrust bearing of claim 1, wherein: the rolling bodies are steel balls.