CN213929155U

CN213929155U - Angular contact ball bearing with improved retainer

Info

Publication number: CN213929155U
Application number: CN202022524240.5U
Authority: CN
Inventors: 王彦成
Original assignee: LUOYANG DERUN PRECISION MACHINE TOOL BEARING CO Ltd
Current assignee: LUOYANG DERUN PRECISION MACHINE TOOL BEARING CO Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-10
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses an angular contact ball bearing with improve holder comprises outer lane, inner circle, steel ball, holder, dust cover, include: a stress release groove is formed in one side of the retainer; the pockets are evenly arranged on the circumference of the retainer. The retainer is made of stainless steel and is formed by stamping, so that the rigidity is high, and the internal lubrication is improved; the inner wall of the pocket hole is in a circular arc shape and is attached to the steel ball, so that the steel ball is convenient to mount, and the tail end locking point of the pocket hole prevents the steel ball from falling from the retainer; during bearing rotation, the steel ball rotates at a high speed, the surface of the steel ball is separated from the inner wall of the pocket and only contacts with the high side of the pocket, friction area during rotation is reduced, heating amount is reduced, centrifugal force generated by rotation is uniformly distributed on the retainer through the stress release grooves, and service life of the bearing is prolonged.

Description

Angular contact ball bearing with improved retainer

Technical Field

The utility model relates to a bearing field specifically is an angular contact ball bearing with improve holder.

Background

With the continuous improvement of the manufacturing level in China, the development of large-scale equipment is also leap forward. The main shafts of various devices require greater load-bearing capacity, higher rotational speeds, and greater impact loads. The impact loads are mainly borne by the paired angular contact ball bearings, but in actual use, the phenomena that the operation of the retainer is not stable at high rotating speed, the steel balls are scratched, the bearing generates heat seriously, poor lubrication causes the early failure of the bearing and the like often occur in the bearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an angular contact ball bearing with improve holder, increase holder rigidity improves stability when rotating, and the steel ball generates heat with the friction of holder when reducing the rotation, increases lubricated to solve the problem among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an angular contact ball bearing with improve holder, comprises outer lane, inner circle, steel ball, holder, shield, includes: a stress release groove is formed in one side of the retainer; the pockets are evenly arranged on the circumference of the retainer.

As a preferred technical scheme of the utility model, the pocket has high and low edges, and the diameters of the pocket are smaller than the diameter of the steel ball; the inner side of the pocket is a circular arc and is attached to the steel ball; the pocket hole end has a locking point to prevent the steel ball from falling.

The utility model has the advantages that: the retainer is made of stainless steel and is formed by stamping, so that the rigidity is high, and the internal lubrication is improved; the inner wall of the pocket hole is in a circular arc shape and is attached to the steel ball, so that the steel ball is convenient to mount, and the tail end locking point of the pocket hole prevents the steel ball from falling from the retainer; during bearing rotation, the steel ball rotates at a high speed, the surface of the steel ball is separated from the inner wall of the pocket and only contacts with the high side of the pocket, the friction area during rotation is reduced, the heat productivity is reduced, the centrifugal force generated by rotation is uniformly distributed on the retainer through the stress release groove, and the service life of the bearing is prolonged;

drawings

FIG. 1 is a schematic sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the retainer of the present invention;

FIG. 3 is a schematic cross-sectional view of the retainer of the present invention;

in the figure: 1-outer ring, 2-inner ring, 3-steel ball, 4-retainer, 401-stress release groove, 402-pocket, 403-pocket locking point, and 5-dust cover.

Detailed Description

Example 1

As shown in fig. 1 to 3, an angular contact ball bearing with an improved retainer is composed of an outer ring 1, an inner ring 2, steel balls 3, a retainer 4 and a dust cover 5, and comprises: a stress relief groove 401 is formed in one side of the retainer 4; the pockets 402 are evenly arranged around the circumference of the cage 4.

As an optimal technical solution of the utility model: the pocket 402 is provided with high and low edges, and the diameters of the high and low edges are smaller than the diameter of the steel ball 3; the inner side of the pocket 402 is a circular arc and is attached to the steel ball 3; the end of the pocket 402 has a locking point 403 to prevent the steel ball from falling.

The utility model discloses the theory of operation: when the bearing is used, the retainer 4 is connected between the inner surface of the bearing outer ring 1 and the outer surface of the inner ring 2, pockets 402 are uniformly distributed on the circumference of the retainer 4, steel balls 3 are uniformly distributed in the pockets 402, stress release grooves 401 are arranged between the steel balls 3, the steel balls 3 are in contact with the bearing outer ring 1 and the bearing inner ring 2, and the bearing is matched with a high-speed rotating shaft for use.

The utility model discloses the pocket hole has increased the height limit, under the prerequisite of guaranteeing bulk strength, reduced the steel ball when high-speed rotatory with the area of contact of holder, the heat that the friction produced has been reduced, the lubricating oil that adds when stainless steel can guarantee the bearing assembly is fully lubricated, the clearance of increase holder and outer lane has increased the heat dissipation, the stress relief groove of holder unilateral is gone out the even conduction of high-speed pivoted centrifugal force of steel ball, the holistic stability of bearing has been increased.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. The utility model provides an angular contact ball bearing with improve holder comprises outer lane (1), inner circle (2), steel ball (3), holder (4), shield (5), its characterized in that: a stress release groove (401) is formed in one side of the retainer (4); the pockets (402) are evenly arranged on the circumference of the cage (4).

2. The angular contact ball bearing with the improved cage of claim 1, wherein: the pocket (402) is provided with high and low edges, and the diameters of the high and low edges are smaller than the diameter of the steel ball; the inner side of the pocket (402) is a circular arc and is attached to the steel ball (3); the tail end of the pocket (402) is provided with a locking point (403) which can prevent the steel ball (3) from falling.