CN216241834U

CN216241834U - Low-noise low-friction ball bearing

Info

Publication number: CN216241834U
Application number: CN202122796923.0U
Authority: CN
Inventors: 韩云朋
Original assignee: Changzhou Fengchuan Electromechanical Co ltd
Current assignee: Jiangsu Jiale Bearing Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-08
Anticipated expiration: 2031-11-16

Abstract

The utility model provides a low-noise and low-friction ball bearing which comprises a plurality of balls, an outer bearing ring with an inner groove raceway and an inner bearing ring with an outer groove raceway, wherein the balls are in a gyro shape with a center protruding and gradually reduced thickness from the middle to two sides, auxiliary tracks are respectively arranged at the upper edges of the inner groove raceway and the outer groove raceway, the auxiliary balls corresponding to the number of the balls are arranged in the auxiliary tracks, and annular tracks matched with the auxiliary balls are arranged in the circumferential direction of the upper surfaces of the balls.

Description

Low-noise low-friction ball bearing

Technical Field

The utility model relates to a low-noise and low-friction ball bearing.

Background

In the field of rolling bearings, the most frequently used radial rolling bearings are single-row or multi-row ball bearings which are essentially formed by an outer and an inner bearing ring and by a plurality of balls arranged between the bearing rings as rolling bodies, which balls roll in a respective groove-like raceway in the inner side of the outer bearing ring and in the outer side of the inner bearing ring and are guided at uniform intervals to one another by a bearing cage.

The accurate guide of the spherical ball in the bearing is an important factor in the working process of the bearing, the torsion of the ball in the running process of the bearing is avoided, the rotation effect and the swing effect of the spherical ball in the high rotating speed and uniform load of the bearing are considered, namely the spherical ball rolls in a wave shape transversely to the running direction in the rolling process, so that a large friction force is generated, the matching motion resistance between the bearing and the ball is increased, the working process of the bearing is unstable, or the condition of clamping and locking is generated, and adverse consequences are caused.

SUMMERY OF THE UTILITY MODEL

Based on the technical problems, the utility model solves the defects of the prior art by the following scheme: the design is a low-noise low-friction ball bearing, which comprises a plurality of balls, an outer bearing ring with an inner groove raceway and an inner bearing ring with an outer groove raceway, wherein the balls are in a gyro shape with a center protruding and gradually reduced thickness from the middle to two sides, auxiliary tracks are respectively arranged at the upper edges of the inner groove raceway and the outer groove raceway, auxiliary balls corresponding to the number of the balls are arranged in the auxiliary tracks, and annular tracks matched with the auxiliary balls are arranged in the circumferential direction of the upper surfaces of the balls. The diameter of the ball is larger than that of the auxiliary ball, the diameter of the auxiliary ball is one fourth of that of the ball, and the auxiliary ball rolls on the annular track of the ball.

The utility model has the beneficial effects that: according to the utility model, the ball is arranged to be in the shape of the gyro with the thick middle and the thin two sides, so that the contact area between the ball and the inner wall of the bearing is never reduced, the friction resistance and the noise are reduced, and the ball is prevented from being inclined in the rolling process by arranging the structure of the auxiliary ball, so that the rolling of the ball is smoother.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is an expanded view of the present invention;

FIG. 2 is a schematic view of the ball of the present invention in cooperation with an auxiliary ball;

fig. 3 is a schematic view of the ball structure of the present invention.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The bearing comprises a plurality of balls 3, an outer bearing ring 1 with an inner groove raceway and an inner bearing ring 2 with an outer groove raceway, wherein the balls 3 are in a gyro shape with a center protruding and gradually reduced in thickness from the middle to two sides, auxiliary tracks are respectively arranged at the upper edges of the inner groove raceway and the outer groove raceway, auxiliary balls 4 corresponding to the balls 3 in number are arranged in the auxiliary tracks, and annular tracks 5 matched with the auxiliary balls 4 are arranged in the circumferential direction of the upper surface and the lower surface of the balls 3. The diameter of the ball 3 is larger than that of the auxiliary ball 4, the diameter of the auxiliary ball 4 is one fourth of the diameter of the ball, and the auxiliary ball 4 rolls on the annular track of the ball 3. The sliding friction between the parts in the bearing is converted into rolling friction, the bearing capacity of the ball is not dispersed, the friction resistance and the noise are reduced, the arrangement of the auxiliary ball further avoids the tilting of the ball in the rolling process, and the rolling of the ball is smoother.

Furthermore, the ball is formed by sintering zirconia powder through a pressure sintering process, the inner groove roller path and the outer groove roller path comprise an outer wear-resistant layer and an inner wear-resistant layer, and the outer wear-resistant layer and the inner wear-resistant layer are made of nano ceramic materials.

Further, ball 3 is inside to be provided with oil storage chamber 6, and oil storage chamber 6 is stored with lubricating oil, runs through the upper and lower both sides of ball thickness direction and is provided with out oil channel 7, and ball 3 is at the rotation in-process, and lubricating oil flows out through out oil channel 7 from oil storage chamber 6, not only can lubricate ball 3 itself, can lubricate the supplementary ball rather than matched with moreover.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. The ball bearing is characterized by comprising a plurality of balls, an outer bearing ring with an inner groove raceway and an inner bearing ring with an outer groove raceway, wherein the balls are in a gyroscope shape with a center protruding and gradually reduced in thickness from the middle to two sides, auxiliary tracks are respectively arranged at the upper edges of the inner groove raceway and the outer groove raceway, auxiliary balls corresponding to the number of the balls are arranged in the auxiliary tracks, and annular tracks matched with the auxiliary balls are arranged in the circumferential direction of the upper surface and the lower surface of each ball.

2. The low noise low friction ball bearing of claim 1, wherein the diameter of the auxiliary balls is one quarter of the diameter of the balls, the auxiliary balls rolling on the circular tracks of the balls.

3. The low-noise and low-friction ball bearing according to claim 1, wherein the balls are formed by sintering zirconia powder through a gas pressure sintering process, the inner groove roller path and the outer groove roller path comprise an outer wear-resistant layer and an inner wear-resistant layer, and the outer wear-resistant layer and the inner wear-resistant layer are made of nano ceramic materials.