CN215720256U

CN215720256U - One-way combined bearing retainer

Info

Publication number: CN215720256U
Application number: CN202122231315.5U
Authority: CN
Inventors: 殷孟君
Original assignee: Liaocheng Qingri Machinery Manufacturing Co ltd
Current assignee: Liaocheng Qingri Machinery Manufacturing Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-01
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a one-way combined bearing retainer which comprises an outer ring, wherein a cavity is arranged on the inner wall of the outer ring, an inner ring is arranged on the inner wall of the cavity, thread grooves are uniformly distributed on the outer wall of the inner ring, the bottom ends of the thread grooves are fixedly connected to one end of a spring, the other end of the spring is fixedly connected to the bottom end of a threaded rod, a fixed block is fixedly connected to the top end of the threaded rod, and steel balls are arranged inside the fixed block. According to the utility model, the threaded rod can be driven to rotate in the threaded groove by rotating the fixing block, the threaded rod can be supported by the spring, and the threaded rod can be firmly propped by the elasticity of the spring, so that the vibration of the bearing generated during working does not influence the stability of the threaded rod in the threaded groove, and the height of the steel ball can be adjusted by only rotating the fixing block when the preload of the bearing is required to be adjusted.

Description

One-way combined bearing retainer

Technical Field

The utility model relates to the field of bearing retainers, in particular to a one-way combined bearing retainer.

Background

A bearing retainer is a bearing part which partially wraps all or part of rolling bodies and moves along with the rolling bodies, is used for isolating the rolling bodies and generally guiding the rolling bodies and retaining the rolling bodies in a bearing, and when the rolling bearing works, particularly when the load is complex and the rolling bearing rotates at high speed, the retainer is subjected to large centrifugal force, impact and vibration, large sliding friction exists between the retainer and the rolling bodies, a large amount of heat is generated, the failure of the retainer can be caused as a result of the combined action of the force and the heat, and the retainer can be burnt and broken seriously, so that the material of the retainer is required to have good heat conductivity, good wear resistance, small friction coefficient, small density, certain strength and toughness matching, good elasticity and expansion coefficient which is similar to that of the rolling bodies, and good processing performance, and in addition, the retainer is required to be subjected to chemical media such as lubricants, lubricants and vibration, The common cage is divided into metal cage and non-metal cage according to the material type, and composite material cage, the special purpose bearing cage should meet the requirement of special working condition, such as high temperature resistance, corrosion resistance, self-lubrication or non-magnetism, the performance of each manufacturer is slightly different but similar for the engineering plastic cage, the cage is light and suitable for the occasion of high rotation speed, and the failure mode of the cage is not burst, so it is suitable for the occasion of not allowing sudden stop, but for the mine machinery, the cage is not suitable for use due to the safety consideration, because the damage is not sudden.

Chinese patent document CN212155480U discloses a bearing retainer, which is not convenient for adjusting bearing preload, and the bearing needs different preload in different use scenes in daily use, but the traditional bearing preload adjustment requires a tool to perform multiple operations to adjust the bearing preload, which is inconvenient for use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a one-way combined bearing retainer.

In order to achieve the purpose, the utility model adopts the following technical scheme: the one-way combined bearing retainer comprises an outer ring, wherein a cavity is arranged on the inner wall of the outer ring, an inner ring is arranged on the inner wall of the cavity, thread grooves are uniformly distributed on the outer wall of the inner ring, the bottom ends of the thread grooves are fixedly connected to one end of a spring, the other end of the spring is fixedly connected to the bottom end of a threaded rod, a fixed block is fixedly connected to the top end of the threaded rod, and steel balls are arranged inside the fixed block.

As a further description of the above technical solution:

threaded rods are connected to the inner portions of the thread grooves in a threaded mode.

As a further description of the above technical solution:

the front end and the rear end of the cavity are fixedly connected with dust covers.

As a further description of the above technical solution:

the inner ring is rotatably connected to the inner wall of the outer ring through steel balls.

As a further description of the above technical solution:

the outer wall of the fixed block is provided with anti-skidding lines, and the width and the height of the fixed block are smaller than the diameter of the steel ball.

As a further description of the above technical solution:

lubricating oil is filled in the fixed block.

As a further description of the above technical solution:

the inner wall of the inner ring is provided with a first limiting groove, and the outer wall of the outer ring is provided with a second limiting groove.

As a further description of the above technical solution:

and the outer ring, the inner ring, the threaded rod and the fixing block are all made of forty-five steel.

The utility model has the following beneficial effects:

according to the bearing, the threaded rod can be driven to rotate in the threaded groove by rotating the fixing block, so that the fixing block can be lifted on the outer wall of the inner ring, the threaded rod can be supported by the spring, and the threaded rod can be firmly supported by the elasticity of the spring, so that the vibration of the bearing generated during working does not affect the stability of the threaded rod in the threaded groove, the height of a steel ball can be adjusted by only rotating the fixing block when the preload of the bearing is required to be adjusted, the preload of the bearing can be conveniently adjusted, the bearing is very convenient to use, and the bearing is worthy of vigorous popularization.

Drawings

Fig. 1 is a perspective view of a one-way combination bearing holder proposed by the present invention;

FIG. 2 is a schematic view of an inner race of the unitized one-way bearing retainer of the present invention;

fig. 3 is a sectional view of the one-way combination bearing holder according to the present invention at a.

Illustration of the drawings:

1. an outer ring; 2. a chamber; 3. an inner ring; 4. a thread groove; 5. a spring; 6. a threaded rod; 7. a fixed block; 8. lubricating oil; 9. steel balls; 10. anti-skid lines; 11. a dust cover; 12. a first limit groove; 13. a second limit groove.

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: the unidirectional combined bearing retainer comprises an outer ring 1, a cavity 2 is arranged on the inner wall of the outer ring 1, an inner ring 3 is arranged on the inner wall of the cavity 2, thread grooves 4 are uniformly distributed on the outer wall of the inner ring 3, the bottom ends of the thread grooves 4 are fixedly connected to one ends of springs 5, the other ends of the springs 5 are fixedly connected to the bottom ends of threaded rods 6, the threaded rods 6 can be supported by the springs 5, and the threaded rods 6 can be firmly propped against by the elasticity of the springs 5, so that the stability of the threaded rods 6 in the thread grooves 4 cannot be influenced by vibration generated when a bearing works, a fixed block 7 is fixedly connected to the top ends of the threaded rods 6, the threaded rods 6 can be driven to rotate in the thread grooves 4 by rotating the fixed block 7, the fixed block 7 can lift on the outer wall of the inner ring 3, steel balls 9 are arranged in the fixed block 7, and the height of the steel balls 9 can be adjusted only by rotating the fixed block 7 when the preload of the bearing needs to be adjusted, thereby can conveniently adjust the pretension degree of bearing, can keep steel ball 9 in suitable position through thread groove 4, threaded rod 6 and fixed block 7.

Threaded rods 6 are connected to the inner portions of the threaded grooves 4 in a threaded mode, the threaded rods 6 can enable the fixing blocks 7 to drive the steel balls 9 to ascend and descend in the threaded grooves 4 in a rotating mode, the pretightening degree of the bearing can be adjusted through ascending and descending of the steel balls 9, dust covers 11 are fixedly connected to the front end and the rear end of the cavity 2 respectively, dust can be prevented from entering the inside of the bearing through the dust covers 11, the service life of the bearing can be prolonged, the inner ring 3 is rotatably connected to the inner wall of the outer ring 1 through the steel balls 9, anti-skidding threads 10 are arranged on the outer wall of the fixing blocks 7, the anti-skidding threads 10 can prevent the phenomenon that hands slide when the fixing blocks 7 are rotated, the width and the height of the fixing blocks 7 are smaller than the diameter of the steel balls 9, the steel balls 9 can be kept at proper positions, lubricating oil 8 is filled in the fixing blocks 7, the lubricating oil 8 can cool the steel balls 9 and can absorb vibration generated by a part of work, the inner wall of the inner ring 3 is provided with a first limiting groove 12, the outer wall of the outer ring 1 is provided with a second limiting groove 13, the bearing can rotate in a single direction through the first limiting groove 12 and the second limiting groove 13, the outer ring 1, the inner ring 3, the threaded rod 6 and the fixing block 7 are all made of forty-five steel, and the material has good deformation resistance.

The working principle is as follows: rotatory fixed block 7 can drive threaded rod 6 and rotate at the inside of thread groove 4, can realize like this that the outer wall of inner circle 3 goes up and down including fixed block 7, can support threaded rod 6 through spring 5, and elasticity through spring 5 can firmly withstand threaded rod 6, the bearing just can not influence threaded rod 6 at the inside stability of thread groove 4 at the vibration that produces at the duration of the operation like this, only need rotatory fixed block 7 just can adjust the height of steel ball 9 when needing the pretension of adjustment bearing, thereby can conveniently adjust the pretension of bearing, it is very convenient to use, be worth wideling popularize.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. One-way combination bearing retainer, including outer lane (1), its characterized in that: the inner wall of outer lane (1) is provided with cavity (2), the inner wall of cavity (2) is provided with inner circle (3), the outer wall evenly distributed of inner circle (3) has thread groove (4), the bottom fixed connection of thread groove (4) is in the one end of spring (5), the other end fixed connection of spring (5) is in the bottom of threaded rod (6), the top fixedly connected with fixed block (7) of threaded rod (6), the inside of fixed block (7) all is provided with steel ball (9).

2. The one-way composite bearing retainer according to claim 1, characterized in that: threaded rods (6) are connected to the inner portions of the thread grooves (4) in a threaded mode.

3. The one-way composite bearing retainer according to claim 1, characterized in that: the front end and the rear end of the cavity (2) are fixedly connected with a dust cover (11).

4. The one-way composite bearing retainer according to claim 1, characterized in that: the inner ring (3) is rotatably connected to the inner wall of the outer ring (1) through steel balls (9).

5. The one-way composite bearing retainer according to claim 1, characterized in that: the anti-skidding lines (10) are arranged on the outer wall of the fixing block (7), and the width and the height of the fixing block (7) are smaller than the diameter of the steel balls (9).

6. The one-way composite bearing retainer according to claim 1, characterized in that: lubricating oil (8) is filled in the fixed block (7).

7. The one-way composite bearing retainer according to claim 1, characterized in that: the inner wall of the inner ring (3) is provided with a first limiting groove (12), and the outer wall of the outer ring (1) is provided with a second limiting groove (13).

8. The one-way composite bearing retainer according to claim 1, characterized in that: the outer ring (1), the inner ring (3), the threaded rod (6) and the fixing block (7) are all made of forty-five steel.