CN219035326U

CN219035326U - Angular contact ball bearing retainer

Info

Publication number: CN219035326U
Application number: CN202222568258.4U
Authority: CN
Inventors: 胡婷
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-16
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses an angular contact ball bearing retainer which comprises a bottom ring and a pocket ring, wherein the pocket ring is coaxially arranged at one end of the bottom ring, a plurality of circumferentially distributed pocket holes are formed in the pocket ring, a plurality of weight-reducing grooves are formed in the inner annular wall of the bottom ring, the shapes and the sizes of the weight-reducing grooves are the same, and the weight-reducing grooves are circumferentially uniformly distributed on the inner annular wall of the bottom ring. According to the angular contact ball bearing retainer, through the arrangement of the weight reduction groove, the dead weight of the retainer can be effectively reduced, and further, the centrifugal force generated in the operation process of the retainer is reduced.

Description

Angular contact ball bearing retainer

Technical Field

The utility model relates to a bearing retainer, in particular to an angular contact ball bearing retainer.

Background

Bearing cages are an important part in rolling bearings, separating and holding the rolling elements and guiding them to roll on a predetermined track of the bearing ring. The engineering plastic retainer for the general angular contact ball bearing is suitable for bearings with small contact angles, has small adjustable contact angle range and poor universality, can not meet the working conditions of high bearing and high rotating speed, and therefore, the development of a novel retainer is urgently needed.

In the prior art, the patent number is 2020116031626, namely a high-speed ball bearing retainer and a high-speed ball bearing using the retainer, more grease can be stored by arranging the retainer into two parts and then combining the two parts, so that steel balls in the bearing can roll better, however, the retainer has a certain weight because the inner ring of the retainer is of a solid structure, and larger centrifugal force is generated in the running process of the retainer, so that the stability of the bearing in the running process is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide the angular contact ball bearing retainer which has smaller centrifugal force and more stable operation in the operation process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an angular contact ball bearing holder, includes end ring and pocket ring, the coaxial setting of pocket ring is on the one end of end ring, offer on the pocket ring and have a plurality of pocket hole that is circumference distribution, offered a plurality of on the interior rampart of end ring and reduced heavy groove, a plurality of reduce the shape size of heavy groove each other the same to be circumference evenly distributed on the interior rampart of end ring.

As a further improvement of the utility model, the weight-reducing groove comprises an outer groove and an inner groove, wherein the outer groove is arranged at a position, close to the side edge, of the inner annular wall of the bottom ring so as to form an opening at the side edge of the inner annular wall of the bottom ring, and the inner groove is arranged in the groove bottom of the outer groove.

As a further improvement of the utility model, the inner groove is arranged in an arc shape, the groove wall of one side of the inner groove facing away from the center of the bottom ring is connected with the groove wall of the outer groove, the groove wall of one side facing towards the center of the bottom ring is connected to the groove bottom of the outer groove, and the side groove wall is inclined towards the center of the bottom ring.

As a further improvement of the utility model, the pocket ring is in a horn shape, one end with small diameter is arranged with the bottom ring integrally, and the weight reducing groove is arranged on the side edge of the bottom ring facing away from the inner annular wall of one end of the pocket ring.

As a further improvement of the utility model, the end edge of one end of the pocket ring, which is opposite to the bottom ring, is of a wedge-shaped edge structure.

As a further improvement of the utility model, the inner annular wall of the pocket ring is provided with a reinforcing rib at a position far away from the bottom ring.

The retainer structure capable of holding the steel balls can be effectively formed through the arrangement of the bottom ring and the pocket ring, the weight of the retainer is reduced through the arrangement of the weight reduction groove, centrifugal force in the running process is reduced, the running of the retainer is more stable, the cooling speed is accelerated after injection molding is finished, deformation caused by shrinkage is reduced, the production efficiency is improved, the width and depth of the groove are adjusted, the inner diameter wall thickness and the outer diameter wall thickness of the retainer are close to the size of the beam between the pockets, the stress concentration is reduced, the strength of the retainer is improved, grease is stored, bearing lubrication is facilitated, and the service life of the bearing is prolonged.

Drawings

FIG. 1 is an overall construction view of an angular contact ball bearing cage of the present utility model;

fig. 2 is a cross-sectional view of the angular contact ball bearing cage of the present utility model.

Detailed Description

The utility model will be further described in detail with reference to examples of embodiments shown in the drawings.

Referring to fig. 1 to 2, an angular contact ball bearing retainer of this embodiment includes a bottom ring 1 and a pocket ring 2, the pocket ring 2 is coaxially disposed at one end of the bottom ring 1, a plurality of circumferentially distributed pockets 3 are formed on the pocket ring 2, a plurality of weight reduction grooves 4 are formed on an inner annular wall of the bottom ring 1, the plurality of weight reduction grooves 4 are identical in shape and size, are circumferentially uniformly distributed on the inner annular wall of the bottom ring 1, and can effectively utilize the pockets 3 formed on the pocket ring 2 to pocket steel balls through the arrangement of the bottom ring 1 and the pocket ring 2, and can effectively reduce the dead weight of the retainer on the premise of maintaining the overall structural strength through the arrangement of the weight reduction grooves 4, so that centrifugal force in the running process is reduced, and the retainer is more stable in running.

As an improved specific embodiment, the weight-reducing groove 4 includes an outer groove 41 and an inner groove 42, the outer groove 41 is formed at a position close to the side edge of the inner annular wall of the bottom ring 1, so as to form an opening at the side edge of the inner annular wall of the bottom ring 1, the inner groove 42 is formed in the groove bottom of the outer groove 41, and during the operation of the cage, a part of lubricating oil is filled on the inner groove 42, so that the lubricating oil can enter the weight-reducing groove 4, and the weight-reducing groove 4 is arranged in a combined mode of the outer groove 41 and the inner groove 42, because the outer groove 41 forms an opening at the side edge of the bottom ring 1, the grease stored in the inner groove can better flow out to the steel balls, and the containing space of the grease can be further increased through the arrangement of the inner groove 42.

As a specific embodiment of the improvement, the inner groove 42 is arc-shaped, the groove wall on one side of the inner groove 42 facing away from the center of the bottom ring 1 is connected with the groove wall of the outer groove 41, the groove wall on one side facing towards the center of the bottom ring 1 is connected to the groove bottom of the outer groove 41, and the side groove wall is inclined towards the center of the bottom ring 1, and by adopting the inner groove 42 with the structure, the grease can be stored better in the running process effectively, and meanwhile, the structural strength of the inner groove 42 is guaranteed.

As a concrete implementation mode of improvement, the pocket ring 2 is loudspeaker form, and this pocket ring 2 diameter is little one end and bottom ring 1 an organic whole sets up, subtract heavy groove 4 and offer on the side of bottom ring 1 back to the inner ring wall of pocket ring 2 one end, through setting up pocket ring 2 into loudspeaker form's mode, alright effectual realization provides a sufficient accommodation space of steel ball, has also pulled the distance between the steel ball simultaneously for it can be better to flow to the steel ball to subtract the grease in the heavy groove 4.

As a modified embodiment, the end edge of the end of the ring 2 facing away from the bottom ring 1 has a wedge-shaped edge structure, so that the weight and occupied space of unnecessary structures of the ring 2 can be reduced, and the stability in the running process can be further increased.

As an improved specific embodiment, the reinforcing ribs are arranged on the inner annular wall of the pocket ring 2 at positions far away from the bottom ring 1, and the structural strength of the pocket ring 2 can be effectively increased through the arrangement of the reinforcing ribs, so that the pocket ring 2 can bear steel balls better.

In summary, the retainer of the present embodiment, through the arrangement of the bottom ring 1 and the pocket ring 2, can effectively form the retainer structure, and through the manner of forming the weight-reducing groove 4 on the inner annular wall of the bottom ring 1, the weight-reducing effect of the retainer can be effectively achieved, and the centrifugal force generated in the running process is reduced, so that the retainer can run more stably.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides an angular contact ball bearing holder, includes end ring (1) and pocket ring (2), the coaxial setting of pocket ring (2) is on the one end of end ring (1), offer on pocket ring (2) and have a plurality of pocket hole (3) that are circumference and distribute, its characterized in that: the inner annular wall of the bottom ring (1) is provided with a plurality of weight-reducing grooves (4), and the weight-reducing grooves (4) are identical in shape and size and are uniformly distributed on the inner annular wall of the bottom ring (1) in circumference.

2. The angular contact ball bearing cage of claim 1, wherein: the weight reducing groove (4) comprises an outer groove (41) and an inner groove (42), wherein the outer groove (41) is formed in the position, close to the side edge, of the inner annular wall of the bottom ring (1) so as to form an opening on the side edge of the inner annular wall of the bottom ring (1), and the inner groove (42) is formed in the groove bottom of the outer groove (41).

3. The angular contact ball bearing cage of claim 2, wherein: the inner groove (42) is in an arc-shaped arrangement, the groove wall of one side of the inner groove (42) back to the center of the bottom ring (1) is connected with the groove wall of the outer groove (41), the groove wall of one side of the inner groove facing to the center of the bottom ring (1) is connected to the groove bottom of the outer groove (41), and the side groove wall is inclined towards the center of the bottom ring (1).

4. An angular contact ball bearing cage according to claim 3, characterized in that: the pocket ring (2) is loudspeaker-shaped, one end with small diameter of the pocket ring (2) is integrally arranged with the bottom ring (1), and the weight reducing groove (4) is formed on the side edge of the inner annular wall of one end of the bottom ring (1) back to the pocket ring (2).

5. The angular contact ball bearing cage of claim 4, wherein: the end edge of one end of the pocket ring (2) back to the bottom ring (1) is of a wedge-shaped edge structure.

6. The angular contact ball bearing cage of claim 5, wherein: reinforcing ribs are arranged on the inner annular wall of the pocket ring (2) at positions far away from the bottom ring (1).