CN216951314U

CN216951314U - Turntable bearing

Info

Publication number: CN216951314U
Application number: CN202220395658.7U
Authority: CN
Inventors: 柏宝晨; 吴非; 燕萍; 李润锋; 刘学; 石佳艺; 于泽洋; 吴欢; 董广雪; 杨春峰; 许秀坤; 仪欣; 王宏业
Original assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Current assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Priority date: 2022-02-26
Filing date: 2022-02-26
Publication date: 2022-07-12
Anticipated expiration: 2032-02-26

Abstract

The utility model relates to a turntable bearing which comprises an inner ring provided with a raceway, an outer ring provided with the raceway and a plurality of rolling bodies, wherein the plurality of rolling bodies are assembled between the inner ring raceway and the outer ring raceway, one end of the outer ring, far away from the inner ring, is provided with an annular flange, and the outer circumferential surface of the annular flange is provided with external teeth. The structure is compact and the weight is light.

Description

Turntable bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a turntable bearing.

Background

The turntable bearing is a large bearing with a special structure which can bear the comprehensive loads such as larger axial load, radial load, overturning moment and the like and integrates multiple functions of supporting, rotating, transmitting, fixing and the like. The turntable bearing has the advantages of being compact in structure, convenient to guide and rotate, simple and convenient to install, easy to maintain and the like, and can be widely used for a slewing device.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, it is an object of the present invention to provide a slewing bearing that solves the problems set forth above in the background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the turntable bearing comprises an inner ring provided with a raceway, an outer ring provided with the raceway and a plurality of rolling bodies, wherein the rolling bodies are assembled between the inner ring raceway and the outer ring raceway, an annular flange is arranged at one end, far away from the inner ring, of the outer ring, and outer teeth are arranged on the outer circumferential surface of the annular flange.

Further, the annular flange is arranged in the middle of the outer circumferential surface of the outer ring.

Further, the width of the annular flange is smaller than that of the bearing outer ring and is not smaller than the diameter of the rolling body.

Furthermore, two end faces of the annular flange are symmetrically provided with annular grooves.

Furthermore, a plurality of outer ring mounting holes are uniformly distributed on the inner circumference of the annular groove.

Further, the inner ring raceway is located in the middle of the outer circumference of the inner ring, and the outer ring raceway is located in the middle of the inner circumferential surface of the outer ring.

Furthermore, a ball blocking block is arranged on the inner ring and is fixed in the inner ring through a taper pin; the ball blocking device is characterized in that a ball blocking hole communicated with the inner ring raceway is formed in the inner circumferential surface of the inner ring, the ball blocking block is installed in the ball blocking hole, a cambered surface matched with the inner ring raceway surface is arranged at one end, close to the inner ring raceway, of the ball blocking block, a first taper hole penetrating through the ball blocking hole is formed in the end surface of the inner ring, and a second taper hole allowing a taper pin to penetrate through is formed in the ball blocking block.

Furthermore, a plurality of inner ring mounting holes are uniformly distributed on the circumference of one end side of the inner ring, which is far away from the outer ring.

Furthermore, the inner ring raceway and the outer ring raceway are both provided with solid lubrication layers.

Further, the rolling bodies are ceramic balls.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a turntable bearing which comprises an inner ring provided with a raceway, an outer ring provided with the raceway and a plurality of rolling bodies, wherein the plurality of rolling bodies are assembled between the inner ring raceway and the outer ring raceway, one end of the outer ring, far away from the inner ring, is provided with an annular flange, and the outer circumferential surface of the annular flange is provided with external teeth. The structure is compact and the weight is light.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. inner ring, 2, outer ring, 3, rolling body, 4, ball blocking block, 5, taper pin, 6, inner ring mounting hole, 7, annular flange, 8, external tooth, 9, annular groove, 10 and outer ring mounting hole.

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.

Example 1

As shown in fig. 1, a turntable bearing includes an inner ring 1, an outer ring 2, and a plurality of rolling elements 3, wherein an inner ring raceway is located in the middle of an outer circumference of the inner ring 1, an outer ring raceway is located in the middle of an inner circumferential surface of the outer ring 2, and the plurality of rolling elements 3 are assembled between the inner ring raceway and the outer ring raceway.

The inner ring 1 is provided with a ball blocking block 4, and the ball blocking block 4 is fixed in the inner ring 1 through a taper pin 5. Specifically, the inner circumferential surface of the inner ring 1 is provided with a ball blocking hole communicated with the inner ring raceway, the ball blocking block 4 is installed in the ball blocking hole, one end, close to the inner ring raceway, of the ball blocking block 4 is provided with a cambered surface matched with the inner ring raceway surface, a first taper hole penetrating through the ball blocking hole is formed in the end surface of the inner ring 1, the ball blocking block 4 is provided with a second taper hole allowing the taper pin 5 to penetrate through, and when the ball blocking block is installed and fixed, the taper pin 5 penetrates through the first taper hole and the second taper hole.

A plurality of inner ring mounting holes 6 are uniformly distributed on the circumference of one end side of the inner ring 1 far away from the outer ring 2. In the embodiment, the inner ring 1 and the outer ring 2 are both made of bearing steel M50NiL so as to improve the strength of the bearing.

An annular flange 7 is integrally arranged at one end, far away from the inner ring 1, of the outer ring 2, external teeth 8 are arranged on the outer circumferential surface of the annular flange 7, and the annular flange 7 is located in the middle of the outer circumferential surface of the outer ring 2. The width of the specific annular flange 7 is smaller than that of the bearing outer ring 2, the width of the annular flange 7 is not smaller than the diameter of the rolling body 3, annular grooves 9 are symmetrically formed in two end faces of the annular flange 7, and a plurality of outer ring mounting holes 10 are uniformly distributed in the inner circumference of each annular groove 9. It should be noted that the weight of the bearing is reduced by arranging the annular flange 7 in the middle of the outer circumference of the outer ring 2 while the strength of the bearing is ensured, and the weight of the bearing is further reduced by arranging the annular groove 9 while the face width of the external teeth 8 is ensured.

In order to further reduce the weight of the bearing, the rolling bodies 3 in the embodiment are ceramic balls; the inner ring raceway and the outer ring raceway form a self-lubricating solid lubricating layer to replace lubricating grease through a Mo2N/MoS2/Ag multi-element composite solid lubricating film material.

In the description of the present invention, it is to be understood that the terms "coaxial," "bottom," "top," "middle," "one end," "another end," "both ends," "upper," "lower," "one side," "another side," "inner," "outer," "front," "center," and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A slewing bearing, characterized in that: the rolling bearing comprises an inner ring provided with a raceway, an outer ring provided with the raceway and a plurality of rolling bodies, wherein the rolling bodies are assembled between the inner ring raceway and the outer ring raceway, one end, far away from the inner ring, of the outer ring is provided with an annular flange, and outer teeth are arranged on the outer circumferential surface of the annular flange.

2. A slewing bearing according to claim 1, characterized in that: the annular flange is arranged in the middle of the outer circumferential surface of the outer ring.

3. A slewing bearing according to claim 1, characterized in that: the width of the annular flange is smaller than that of the outer ring and not smaller than the diameter of the rolling body.

4. A slewing bearing according to claim 1, wherein: and two end faces of the annular flange are symmetrically provided with annular grooves.

5. A slewing bearing according to claim 4, wherein: a plurality of outer ring mounting holes are uniformly distributed in the inner circumference of the annular groove.

6. A slewing bearing according to claim 1, wherein: the inner ring raceway is positioned in the middle of the outer circumference of the inner ring, and the outer ring raceway is positioned in the middle of the inner circumferential surface of the outer ring.

7. A slewing bearing according to claim 1, characterized in that: the ball blocking block is arranged on the inner ring and is fixed in the inner ring through a taper pin; the ball blocking device is characterized in that a ball blocking hole communicated with the inner ring raceway is formed in the inner circumferential surface of the inner ring, the ball blocking block is installed in the ball blocking hole, a cambered surface matched with the inner ring raceway surface is arranged at one end, close to the inner ring raceway, of the ball blocking block, a first taper hole penetrating through the ball blocking hole is formed in the end surface of the inner ring, and a second taper hole allowing a taper pin to penetrate through is formed in the ball blocking block.

8. A slewing bearing according to claim 1, wherein: and a plurality of inner ring mounting holes are uniformly distributed on the circumference of one end side of the inner ring far away from the outer ring.

9. A slewing bearing according to claim 1, wherein: and the inner ring raceway and the outer ring raceway are both provided with solid lubricating layers.

10. A slewing bearing according to any one of claims 1-9, wherein: the rolling bodies are ceramic balls.