CN213684961U

CN213684961U - Zero-clearance ball bearing

Info

Publication number: CN213684961U
Application number: CN202022345968.1U
Authority: CN
Inventors: 李新旺
Original assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-13
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a zero play ball bearing, including inner circle, outer lane and a plurality of spheroid, the external diameter end of inner circle is provided with outer raceway, the internal diameter end of outer lane is provided with the raceway groove, the raceway inslot closely inlays in spheroid axial one end and is equipped with the raceway circle, the raceway circle is formed with the first arc raceway with the spheroid butt towards the internal diameter terminal surface of spheroid one end, the raceway inslot inlays in the spheroid axial other end and is equipped with the elastic ring, the elastic ring has the punching press raceway circle towards the internal diameter end of spheroid one end and the elastic butt between the spheroid, the punching press raceway circle is formed with the second arc raceway with the spheroid butt. The utility model provides an improve car steering column performance, simple structure satisfies zero play ball bearing of zero play.

Description

Zero-clearance ball bearing

Technical Field

The utility model belongs to the technical field of the ball bearing, especially, zero clearance ball bearing.

Background

At present, the rotating speed of the working environment of the automobile steering column bearing is low, generally about 100rpm, so that the requirement on the bearing capacity of the bearing is not high, the requirement on axial and radial loads can be met, and the temperature of the working environment of the bearing is not high, generally about-40-80 ℃. In recent years, with the development of the existing automobile industry, the requirements on the bearing can change along with the change of the product, and due to the fact that the requirements on the bearing capacity are not high and the working environment temperature is about-40-80 ℃, in order to improve the performance of an automobile steering column as much as possible, for the application of the bearing of the product, a customer needs the ball bearing to meet the zero-clearance design so as to achieve the purpose of small axial play, and the conventional ball bearing obviously cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an improve the steering column performance of automobile, simple structure satisfies zero play ball bearing of zero play.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a zero play ball bearing, includes inner circle, outer lane and a plurality of spheroid, the external diameter end of inner circle is provided with outer raceway, the internal diameter end of outer lane is provided with the raceway groove, the raceway ring is closely inlayed in spheroid axial one end in the raceway groove and is equipped with the raceway ring, the raceway ring is formed with the first arc raceway with the spheroid butt towards the internal diameter terminal surface of spheroid one end, the raceway inslot is inlayed in the spheroid axial other end and is equipped with the elastic ring, the elastic ring has the punching press raceway ring towards the elastic butt between the internal diameter end of spheroid one end and the spheroid, the punching press raceway ring is formed with the second arc raceway with the spheroid butt.

Adopt above-mentioned scheme, through setting up the raceway groove at the outer lane to closely inlay dress raceway ring and elastic ring in the raceway groove, the raceway ring is through first arc raceway and spheroid axial one end butt, can make on the second arc raceway of spheroid axial other end butt on the punching press raceway ring through setting up the punching press raceway ring between elastic ring and the spheroid, the elastic ring plays the pretension effect, guarantees that the spheroid can paste tightly on first arc raceway, second arc raceway and outer raceway, realizes zero clearance ball bearing.

As a further setting of the utility model, the outer lane comprises first halfbody and second halfbody along axial concatenation, the axial cross-section of first halfbody and second halfbody all is "L" type setting, the external diameter on the long limit of first halfbody is the same with the long limit of second halfbody's internal diameter, the minor face and the raceway circle lateral wall butt of first halfbody, the minor face and the elastic ring lateral wall butt of second halfbody, be provided with the stop gear who prevents first halfbody and second halfbody axial separation between first halfbody and the second halfbody.

By adopting the scheme, the outer ring is formed by splicing the first half body and the second half body along the axis, so that the raceway ring, the elastic ring and the stamping raceway ring can be conveniently installed, the installation is more convenient, the first half body and the second half body can be prevented from being axially separated through the limiting mechanism, and the reliability of the product is improved.

As a further setting of the utility model, the inside wall of second halfbody minor face is provided with and is used for first halfbody long limit axial male cyclic annular slot, the long limit of second halfbody corresponds the position of cyclic annular slot has a plurality ofly along the circumference equipartition with the first jack groove of cyclic annular slot intercommunication, the position that the minor face of second halfbody corresponds first jack groove is provided with the spacing slot with cyclic annular slot intercommunication and shape size and first jack groove adaptation, the position that the part that first halfbody long limit axial inserted in the cyclic annular slot corresponds first jack groove is provided with the second jack groove with first jack groove shape size adaptation, insert between first jack groove, second jack groove and the spacing slot and be equipped with the limiting plate, first jack groove, second jack groove, spacing slot and limiting plate constitute limiting mechanism.

By adopting the scheme, the limiting plate sequentially penetrates through the first jack groove, the second jack groove and the limiting slot along the radial direction, so that the first half body can be prevented from axially sliding along the long side, the first half body and the second half body can be prevented from axially separating, the structure is simple, and the processing and implementation are convenient.

As a further setting of the utility model, the limiting plate passes through bolt locking and sets up in the spacing slot of second halfbody minor face, the minor face of first halfbody passes through bolt and raceway circle fixed connection.

By adopting the scheme, the limiting plate is locked in the limiting slot through the bolt, the limiting plate can be prevented from being radially separated, the reliability of the limiting mechanism is further improved, the structural strength of the product is improved through fixedly connecting the short edge of the first half body with the raceway ring, and the service life of the product is prolonged.

As the utility model discloses a further setting, raceway circle, outer lane and spheroid all adopt rigid material to make, the elastic ring adopts rubber materials to make, the punching press raceway circle adopts the spring steel to make.

By adopting the scheme, the raceway ring, the outer ring and the ball body are all made of rigid materials, so that a conductor connection can be formed, the aim of low resistance is fulfilled, and the requirement of a user on the low resistance performance of a product is met.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic exterior view of an embodiment of the present invention;

fig. 2 is a structural sectional view of an embodiment of the present invention.

Detailed Description

The specific embodiment of the utility model is shown in fig. 1-2, a zero play ball bearing, including inner circle 1, outer lane 2 and a plurality of spheroid 3, the external diameter end of inner circle 1 is provided with outer raceway 11, the internal diameter end of outer lane 2 is provided with raceway groove 21, closely inlay in 3 axial one ends of spheroid in raceway groove 21 and be equipped with raceway ring 4, raceway ring 4 is formed with the first arc raceway 41 with 3 butts of spheroid towards the internal diameter terminal surface of 3 one ends of spheroid, it is equipped with elastic ring 5 to inlay in 3 axial other ends of spheroid in raceway groove 21, elastic ring 5 has punching press raceway ring 6 towards the elastic butt between the internal diameter end of 3 one ends of spheroid and spheroid 3, punching press raceway ring 6 is formed with the second arc raceway 61 with 3 butts of spheroid.

The outer ring 2 is formed by axially splicing a first half body 22 and a second half body 23, the axial sections of the first half body 22 and the second half body 23 are both arranged in an L shape, the outer diameter of a long side 221 of the first half body 22 is the same as the inner diameter of a long side 231 of the second half body 23, a short side 222 of the first half body 22 is abutted with the outer side wall of the raceway ring 4, a short side 232 of the second half body 23 is abutted with the outer side wall of the elastic ring 5, and a limiting mechanism for preventing the first half body 22 and the second half body 23 from axially separating is arranged between the first half body 22 and the second half body 23.

The inner side wall of the short side 232 of the second half-body 23 is provided with an annular slot 2321 for the axial insertion of the long side 221 of the first half-body 22, a plurality of first insertion grooves 2311 communicated with the annular slot 2321 are uniformly distributed on the long side 231 of the second half body 23 corresponding to the annular slot 2321 along the circumferential direction, a limiting slot 2322 which is communicated with the annular slot 2321 and is matched with the first jack slot 2311 in shape and size is arranged at the position, corresponding to the first jack slot 2311, of the short edge 232 of the second half body 23, the part of the first half 22 where the long side 221 is axially inserted into the annular slot 2321 is provided with a second insertion slot 2211 which is matched with the first insertion slot 2311 in shape and size at a position corresponding to the first insertion slot 2311, a limiting plate 7 is inserted among the first and

second insertion grooves

2311 and 2211 and the limiting slot 2322, the first insertion groove 2311, the second insertion groove 2211, the limiting insertion groove 2322 and the limiting plate 7 form the limiting mechanism.

The limiting plate 7 is locked and arranged in a limiting slot 2322 of the short side 232 of the second half body 23 through a bolt 8, and the short side 222 of the first half body 22 is fixedly connected with the raceway ring 4 through the bolt 8.

The raceway ring 4, the outer ring 2 and the ball body 3 are all made of rigid materials, the elastic ring 5 is made of rubber materials, and the stamping raceway ring 6 is made of spring steel.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a zero clearance ball bearing, includes inner circle, outer lane and a plurality of spheroid, the external diameter end of inner circle is provided with outer raceway, its characterized in that: the inner diameter end of outer lane is provided with the raceway groove, closely inlay in spheroid axial one end in the raceway groove and be equipped with the raceway ring, the inner diameter terminal surface of raceway ring orientation spheroid one end is formed with the first arc raceway with the spheroid butt, inlay in the axial other end of spheroid in the raceway groove and be equipped with the elastic ring, the elastic butt of elastic ring between the inner diameter end of spheroid one end and the spheroid has the punching press raceway ring, the punching press raceway ring is formed with the second arc raceway with the spheroid butt.

2. The zero-play ball bearing according to claim 1, characterized in that: the outer ring is formed by axially splicing a first half body and a second half body, the axial sections of the first half body and the second half body are arranged in an L shape, the outer diameter of the long side of the first half body is the same as the inner diameter of the long side of the second half body, the short side of the first half body is abutted against the outer side wall of the raceway ring, the short side of the second half body is abutted against the outer side wall of the elastic ring, and a limiting mechanism for preventing the first half body and the second half body from being axially separated is arranged between the first half body and the second half body.

3. The zero-play ball bearing according to claim 2, characterized in that: the limiting mechanism comprises a first half body and a second half body, wherein the inner side wall of the short side of the second half body is provided with an annular slot for axially inserting the long side of the first half body, a plurality of first jack slots communicated with the annular slot are circumferentially and uniformly distributed at the position, corresponding to the annular slot, of the long side of the second half body, a limiting slot communicated with the annular slot and matched with the first jack slots in shape and size is arranged at the position, corresponding to the first jack slots, of the short side of the second half body, a second jack slot matched with the first jack slots in shape and size is arranged at the position, corresponding to the first jack slots, of the short side of the first half body, a limiting plate is inserted among the first jack slots, the second jack slots and the limiting slot, and the first jack slots, the second jack slots, the limiting slot and the limiting plate form the limiting mechanism.

4. The zero-play ball bearing according to claim 3, characterized in that: the limiting plate is locked and arranged in a limiting slot of the short side of the second half body through a bolt, and the short side of the first half body is fixedly connected with the raceway ring through a bolt.

5. The zero-play ball bearing according to claim 1, characterized in that: the raceway ring, the outer ring and the ball body are all made of rigid materials, the elastic ring is made of rubber materials, and the stamping raceway ring is made of spring steel.