CN216589576U

CN216589576U - Four-point contact ball bearing with special retainer and special roller path

Info

Publication number: CN216589576U
Application number: CN202123033688.8U
Authority: CN
Inventors: 潘承怡; 曹远飞; 常佳豪
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-24
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a four-point contact ball bearing with a special retainer and a special roller path, which comprises an outer ring assembly, balls, a retainer assembly and an inner ring assembly, wherein the outer ring assembly is provided with a plurality of rolling balls; the spacer is arranged at the interval of each retainer assembly, and the spacer is simultaneously provided with an annular bulge, so that the service life of the bearing can be prolonged, and the friction and the abrasion can be reduced; the inner ring consists of an arc inner ring raceway, and the ball is in contact with the arc inner ring raceway, so that the bearing capacity of the bearing is increased; the oil way roller path plays a certain role in oil storage; the outer ring is provided with two arc-shaped slideways which are composed of two arc-shaped bulges inside the outer ring, so that the contact area is reduced, and the friction and the abrasion are reduced; the retainer assembly consists of two retainers and a pin shaft, so that the filling and the dismounting of the ball bearings are facilitated; the utility model has simple structure, and the oil way roller path plays a self-lubricating role during the bearing movement process; the isolating body, the arc-shaped slide way and the annular bulge reduce the friction and wear of the bearing and prolong the service life of the bearing; the special shape of the circular arc inner ring raceway increases the contact point from one to two, thereby increasing the bearing capacity of the bearing.

Description

Four-point contact ball bearing with special retainer and special roller path

Technical Field

The utility model relates to a bearing, in particular to a four-point contact ball bearing with a special retainer and a special roller path.

Background

The rolling bearing has irreplaceable important function in the advanced manufacturing industry and is one of important indexes for measuring the level of the manufacturing industry, the four-point contact ball bearing is taken as a key matched basic part in the field of mechanical industry, the performance of the four-point contact ball bearing directly influences the working efficiency, the stability and the reliability of the whole machine, the four-point contact ball bearing plays an important role in the transformation and upgrading of the traditional manufacturing industry, particularly the labor intensive industry, the four-point contact ball bearing is widely applied in the fields of automobiles, mining machinery, machine tools, robots, spacecrafts, precise instruments, electronic computers, construction machinery, textile machinery and the like, the traditional rolling ball bearing is suitable for the condition of high rotating speed, but the bearing capacity is general, so that the four-point contact ball bearing with a special retainer and a special roller path is designed, the bearing capacity is increased, and the designed isolated body, the arc-shaped slideway and the annular bulge reduce the contact area, the friction and the abrasion are reduced; and the bearing has self-lubricating function, can effectively prolong the service life of the bearing.

Disclosure of Invention

The utility model aims to provide a four-point contact ball bearing with a special retainer and a special roller path, so that the bearing capacity of the bearing is increased, friction is reduced, the lubrication condition is improved, and the service life of the bearing is prolonged.

To achieve the above object, the present invention includes; an outer ring, an inner ring, a retainer assembly, balls, etc.,

the ball is arranged in the retainer assembly and rolls relative to the insulator, the outer ring and the inner ring limit the axial and radial movement of the ball, the insulator is arranged on the retainer assembly and can rotate relative to the retainer assembly, the oil path raceway plays a role of storing oil, when the rotating speed is high, lubricating oil enters the oil path raceway under the action of centrifugal force and is stored, when the rotating speed is reduced to a certain value, the oil in the oil path raceway falls into the middle of the raceway to play a role of self-lubricating, the arc-shaped slideway reduces the contact area so as to reduce the friction and wear, the arc-shaped inner ring raceway is spliced by two arcs, the bearing capacity of the bearing is effectively increased, the retainer assembly is composed of the retainer and is connected by a pin shaft, and the pin shaft is matched with the insulator through a hole shaft, so that the loading and the dismounting of the ball are convenient, the arc-shaped slide way is composed of two arc-shaped bulges, so that the contact area is reduced, the annular bulges are arranged on the isolating body, the contact area is reduced, and the friction and the abrasion are reduced.

Drawings

FIG. 1 is a schematic view of a bearing of the present invention

FIG. 2 is a schematic view of the outer ring structure of the present invention

FIG. 3 is a cross-sectional view of the inner race 3/4 of the present invention

FIG. 4 is a schematic view of the cage of the present invention

FIG. 5 is a schematic view of the separator of the present invention

In the figure, the bearing comprises an outer ring 1, an outer ring 2, balls 3, an isolation body 4, a retainer assembly 5, an inner ring 6, an arc-shaped slideway 7, an oil way roller path 8, an arc-shaped inner ring roller path 9, a retainer 10, a pin shaft 11 and an annular bulge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1, the present invention mainly comprises: the device comprises an outer ring 1, balls 2, an isolating body 3, a retainer assembly 4 and an inner ring 5; the balls 2 are arranged in the retainer assembly 4 and roll relative to the isolating body 3, the outer ring 1 and the inner ring 5 limit the axial and radial movement of the balls 2, and the isolating body 3 is arranged on the retainer assembly 4 and can roll relative to the retaining body.

Referring to the attached drawing 2, the oil path roller path 7 can store oil, when the rotating speed is high, lubricating oil can enter the oil path roller path 7 to be stored due to the effect of centrifugal force, when the rotating speed is reduced to a certain value, the oil in the oil path roller path 7 can fall into the middle of the roller path to play a role in lubrication, and the arc-shaped slide way 6 reduces the contact area, so that the friction and the abrasion are reduced.

Referring to fig. 3, 4 and 5, the circular arc inner ring raceway 8 raceway is formed by splicing two circular arcs, so that the bearing capacity of the bearing is effectively improved, the retainer assembly 4 is composed of two retainers 9 which are connected by a pin shaft 10, and the annular bulge 11 is arranged on the isolated body 3, so that the contact area is reduced, and the friction and the abrasion are reduced.

As described above, the present invention is only a preferred embodiment, and it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention shall be covered thereby.

Claims

1. A four-point contact ball bearing having a special cage and a special raceway, comprising: outer lane (1), ball (2), isolator (3), holder subassembly (4), inner circle (5), arc slide (6), oil circuit raceway (7), circular arc inner circle raceway (8), holder (9), round pin axle (10), annular protruding (11), its characterized in that: the ball (2) is arranged in the retainer assembly (4) and rolls relatively with the isolating body (3), the outer ring (1) and the inner ring (5) limit axial and radial movement of the ball (2), the isolating body (3) is arranged on the retainer assembly (4) and can roll relatively, the arc slideway (6) is composed of two arc bulges, the arc inner ring raceway (8) is spliced by two arcs, the retainer assembly (4) is composed of two retainers (9) and is connected by a pin shaft (10), and the annular bulge (11) is arranged on the isolating body (3).

2. The four-point contact ball bearing having a special cage and a special raceway according to claim 1, wherein the inner ring assembly comprises: the inner ring (5) and the circular arc inner ring raceway (8), wherein the curvature radius of the circular arc inner ring raceway (8) is 25 mm.

3. The four-point contact ball bearing having a special cage and a special raceway of claim 1, wherein the outer ring assembly comprises: the oil way comprises an outer ring (1), an oil way raceway (7) and an arc-shaped slideway (6), wherein the depth of a groove of the oil way raceway (7) is 80 microns, and the protrusion height of the arc-shaped slideway (6) is 100 microns.

4. The four-point contact ball bearing having a special cage and a special raceway of claim 1, wherein the cage assembly comprises: the retainer (9) and the pin shaft (10) are connected together through the pin shaft (10).

5. The four-point contact ball bearing having a special cage and a special raceway of claim 1, wherein the isolator assembly comprises: the device comprises a separator (3) and annular bulges (11), wherein the annular bulges (11) are arranged on two sides of the separator (3), and the height of each annular bulge (11) is 50 micrometers.