CN209943343U

CN209943343U - Bearing assembly

Info

Publication number: CN209943343U
Application number: CN201920624531.6U
Authority: CN
Inventors: 蒋贤志
Original assignee: Guangzhou Yugong New Material Technology Co Ltd
Current assignee: Guangzhou Yugong New Material Technology Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-14
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a bearing, include outer lane, inner circle and be located a plurality of balls between outer lane and the inner circle, the inner circle is the metal material, and the outer lane is the plastics material, goes towards the inner circle protrusion on the inner wall of outer lane and forms round ball retaining part, has the ball to keep the chamber in the ball retaining part, and the ball keeps the chamber uncovered towards the inner circle side, and it has round ball to put into the mouth to open on the outer wall of outer lane, and the ball is put into the mouth and is kept chamber one-to-one intercommunication with the ball, and each ball is put into the mouth and is matched with the plastics lid that can. The utility model discloses a bearing noise is little, and is wear-resisting.

Description

Bearing assembly

Technical Field

The utility model relates to a bearing.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process.

The traditional bearing is made of metal materials, and the bearing made of the metal materials has better high-temperature resistance, but the metal bearing has the following defects: 1. the noise is high; 2. it is not wear resistant.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bearing, the noise is little, and is wear-resisting.

In order to realize the above-mentioned purpose, the utility model provides a bearing, include outer lane, inner circle and be located a plurality of balls between outer lane and the inner circle, the inner circle is the metal material, and the outer lane is the plastics material, goes towards the inner circle protrusion on the inner wall of outer lane and forms round ball retaining part, has the ball to keep the chamber in the ball retaining part, and the ball keeps the chamber uncovered towards the inner circle side, and it has round ball to put into the mouth to open on the outer wall of outer lane, and the ball is put into the mouth and is kept the chamber one-to-one intercommunication with the ball, and each ball is put into the mouth and is.

As a further improvement of the present invention, the two end faces of the outer ring are respectively provided with a round oil inlet, the oil inlets of the two end faces of the outer ring are in one-to-one correspondence, and every two corresponding oil inlets of the two end faces of the outer ring extend to one of the ball retaining portion and the ball retaining cavity of the ball retaining portion are communicated with each other.

As a further improvement, the oil inlet hole extends towards the axis direction of the outer ring in an inclined manner.

As a further improvement of the present invention, the ball holding portion has a circular structure.

As a further improvement of the utility model, the inner end face of the plastic cover body is of an arc structure matched with the shape of the ball.

As a further improvement of the utility model, the ball is put into the mouth and is circular mouth, and the plastics lid is cylindrical lid, and the mouth lateral wall is put into with the ball to the plastics lid and is passed through screw thread fixed connection.

As a further improvement, the outer ring, the ball retaining part and the plastic cover are made of PET material.

Compared with the prior art, the utility model discloses a bearing's beneficial effect as follows:

(1) the bearing is made of plastic materials, so that the bearing is light in weight, wear-resistant and low in noise.

(2) And an oil inlet hole is adopted, so that oil can be conveniently fed to lubricate the ball and the inner ring.

(3) The oil inlet hole inclines, so that oil leakage can be avoided.

(4) The plastic cover body is connected with the outer ring through threads, and the connection is firm.

(5) The PET material has the characteristics of good high temperature resistance, high surface hardness and good fatigue resistance.

(6) The whole structure is simple, the manufacture is convenient, and the cost is low.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

Fig. 1 is a schematic view of a bearing.

Fig. 2 is a cross-sectional view of a bearing.

Fig. 3 is a cross-sectional view of the outer ring.

Detailed description of the embodiments reference is made to the accompanying drawings in which: an outer ring 1, a ring ball holding part 11, a ball holding cavity 12, a ring ball inlet 13, an oil inlet 14, an inner ring 2, balls 3 and a plastic cover 4

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

Referring to fig. 1-3, the bearing includes an outer ring 1, an inner ring 2, and a plurality of balls 3 located between the outer ring 1 and the inner ring 2. The inner ring 2 is made of metal. The outer ring 1 is made of plastic, and is light in weight, low in noise and wear-resistant.

The inner wall of the outer ring 1 is formed with a single ball retaining portion 11 projecting toward the inner ring 2, and the ball retaining portion 11 is formed integrally with the outer ring 1 and is made of the same material as the outer ring 1. Specifically, the outer ring 1 and the ball holding portion 11 are both made of a PET material, and the PET material has the characteristics of good high temperature resistance, high surface hardness, and good fatigue resistance. The ball retainer 11 has a circular configuration. The ball holding portion 11 has a ball holding chamber 12 therein, the ball holding chamber 12 is open toward the inner ring side, and the balls 3 are exposed to the outside of the open side and are in rolling friction with the outer wall of the inner ring 1. A circle of ball placing openings 13 are formed in the outer wall of the outer ring 1, the ball placing openings 13 are communicated with the ball retaining cavities 12 in a one-to-one correspondence mode, and the ball placing openings 13 are circular openings.

Each of the ball introduction ports 13 is fitted with an openable plastic cover 4, and the plastic cover 4 is a cylindrical cover. The inner end face of the plastic cover body 4 is of an arc structure matched with the shape of the ball and is in rolling friction with the ball 3. The plastic cover body 4 is connected with the side wall of the ball placing opening 13 through threads, and the connection is firm. The outer end face of the plastic cover body 4 is provided with a straight screwdriver groove or a cross screwdriver groove.

Two end faces of the outer ring 1 are respectively provided with a circle of oil inlet holes 14, the oil inlet holes 14 on the two end faces of the outer ring 1 correspond to one another, every two corresponding oil inlet holes 14 on the two end faces of the outer ring 1 extend to one ball retaining part 11 and are communicated with the ball retaining cavity 12 of the ball retaining part 11, and the oil inlet holes 14 are convenient for adding lubricating oil to the balls 3 and the inner ring 2. The oil inlet 14 extends obliquely towards the axis of the outer ring 1, so that oil leakage during adding lubricating oil is avoided.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. The utility model provides a bearing, includes outer lane, inner circle and is located a plurality of balls between outer lane and the inner circle, its characterized in that: the inner circle is the metal material, and the outer lane is the plastics material, forms round ball retaining part towards the inner circle protrusion on the inner wall of outer lane, has the ball in the ball retaining part to keep the chamber, and the ball keeps the chamber uncovered towards the inner circle side, and it has the round ball to put into the mouth to open on the outer wall of outer lane, and the ball is put into the mouth and is kept the chamber one-to-one intercommunication with the ball, and each ball is put into the mouth and is matched with the plastics lid that can open.

2. The bearing of claim 1, wherein: and two circles of oil inlet holes are respectively formed in two end faces of the outer ring, the oil inlet holes in the two end faces of the outer ring correspond to one another, and every two corresponding oil inlet holes in the two end faces of the outer ring extend to one ball retaining part and are communicated with the ball retaining cavity of the ball retaining part.

3. The bearing of claim 2, wherein: the oil inlet hole extends towards the axis direction of the outer ring in an inclined mode.

4. The bearing of claim 3, wherein: the ball retaining portion has a circular configuration.

5. The bearing of claim 3, wherein: the inner end face of the plastic cover body is of an arc structure matched with the shape of the ball.

6. The bearing of claim 5, wherein: the ball is put into the mouth and is circular mouth, and the plastics lid is cylindrical lid, and the plastics lid passes through screw thread fixed connection with ball and puts into the mouth lateral wall.

7. The bearing of claim 6, wherein: the outer ring, the ball retaining part and the plastic cover body are all made of PET materials.