CN215720250U

CN215720250U - Roller-guided ultra-large slewing bearing thrust retainer

Info

Publication number: CN215720250U
Application number: CN202121802006.2U
Authority: CN
Inventors: 赵俊飞; 杨书菊; 杨慧萍
Original assignee: LUOYANG XINQIANGLIAN SLEWING BEARING CO Ltd
Current assignee: LUOYANG XINQIANGLIAN SLEWING BEARING CO Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-02-01
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a roller-guided ultra-large slewing bearing thrust retainer, which comprises a retainer body, wherein the retainer body is of an annular structure, the utility model has simple design structure and convenient use, on the basis of the existing retainer, the surface of the retainer is provided with spacing blocks at equal intervals, when the retainer is arranged in the slewing bearing, the limiting block can be contacted with the rolling body, so that a certain gap is left between the lower surface of the retainer and the surface of the track to avoid contact, thereby being beneficial to the lubrication of the inner track of the slewing bearing, effectively prolonging the service life of the retainer, meanwhile, the situation that the slewing bearing cannot work due to the fact that a soft belt area of the slewing bearing is damaged is avoided.

Description

Roller-guided ultra-large slewing bearing thrust retainer

Technical Field

The utility model belongs to the technical field of design of slewing bearing retainers, and particularly relates to a roller-guided ultra-large slewing bearing thrust retainer.

Background

The slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. Slewing bearings are widely used in the real industry and are called: the "joint" of machine is an important transmission component necessary for the machinery which needs to make relative rotary motion between two bodies and simultaneously must bear axial force, radial force and tilting moment. At present, a retainer of a thrust ball type slewing bearing is positioned in a track between an inner ring and an outer ring of the slewing bearing, the overall appearance of the slewing bearing retainer is large, the weight of the slewing bearing retainer is heavy, the retainer is in contact with the bottom surface of the track under the action of self gravity, when the slewing bearing works, the retainer and the surface of the track are continuously rubbed due to the movement of a roller, so that the retainer is damaged, in addition, the working surface of the slewing bearing needs to be quenched during processing, a soft belt area exists on the surface of the track during quenching, when the retainer is in contact with the soft belt area, the soft belt area is quickly abraded, the slewing bearing is damaged, and the normal operation of the slewing bearing is influenced.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a roller-guided ultra-large slewing bearing thrust retainer which is simple and reasonable in structural design and convenient to use.

The technical scheme adopted by the utility model is as follows: the utility model provides a roller-guided ultra-large slewing bearing thrust holder, includes the holder body, and the holder body is the loop configuration, offers a plurality of pockets around holder body center evenly distributed in the thickness direction of holder body, and a plurality of stoppers around holder body center evenly distributed are installed to the upper surface position of holder body, and the both sides of stopper extend and the both sides face shaping of stopper has spherical groove to pocket top.

The limiting block is made of copper.

The limiting block is mounted on the retainer body through screws.

When the ultra-large slewing bearing thrust retainer guided by the rollers is used, the rolling bodies (steel balls) are placed at the track positions of the slewing bearing, the retainer is placed above the rolling bodies, so that the pockets correspond to the rolling bodies one to one, when the retainer is placed, the assembly of the retainer and the rolling bodies is completed when the rolling bodies are contacted with the spherical grooves on the side surfaces of the limiting blocks, at the moment, under the action of the limiting blocks, gaps are formed between the retainer body and the upper and lower tracks of the slewing bearing, so that the retainer is in a suspended state, when the slewing bearing runs, the rolling bodies roll in the tracks, the retainer can play a role in isolating and protecting the rolling bodies, and the retainer can not be contacted with the surfaces of the tracks, thereby not only preventing the retainer from being damaged due to friction, but also avoiding the damage caused by the contact between a soft belt area on the surfaces of the tracks and the retainer, the service life of the retainer and the slewing bearing is prolonged.

A plurality of limiting blocks which are uniformly distributed around the center of the retainer body are arranged on the upper surface of the retainer body, two sides of each limiting block extend to the upper part of the pocket, and spherical grooves are formed on two side surfaces of each limiting block; the purpose of this is: the limiting block can be contacted with the steel ball, namely the steel ball is used for limiting the limiting block, and the retainer is positioned in the middle of the steel ball to isolate the steel ball, so that the problem that the retainer is contacted with the surface of the rail under the action of gravity to cause damage to the retainer and the rail is avoided; the spherical groove is used for being matched and contacted with the outer surface of the steel ball, so that the abrasion of the limiting block can be reduced.

The utility model has the beneficial effects that:

the utility model has simple design structure and convenient use, and on the basis of the existing retainer, the surface of the retainer is provided with the limit blocks at equal intervals, when the retainer is arranged in the slewing bearing, the limit blocks can be contacted with the rolling bodies, so that a certain gap is reserved between the lower surface of the retainer and the surface of the track, and the contact is avoided, thereby being beneficial to the lubrication of the track in the slewing bearing, effectively prolonging the service life of the retainer, and simultaneously avoiding the condition that the slewing bearing cannot work due to the damage of a soft belt area of the slewing bearing.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged partial view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention.

The labels in the figure are: 1. a cage body; 2. a pocket hole; 3. a limiting block; 301. a spherical recess.

Detailed Description

The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.

As shown in the figure, a roller-guided ultra-large slewing bearing thrust holder, including holder body 1, holder body 1 is the loop configuration, has seted up a plurality of pockets 2 around 1 central evenly distributed of holder body in the thickness direction of holder body 1, and a plurality of stopper 3 around 1 central evenly distributed of holder body are installed to the upper surface position of holder body 1, and the both sides of stopper 3 extend and the both sides face shaping of stopper 3 has spherical recess 301 to 2 tops in the pocket.

The limiting block 3 is made of copper, and the steel ball and the retainer body 1 are made of alloy steel, so that steel friction in the prior art can be changed into a copper friction mode, the probability that the rolling body, the retainer and the rail are abraded can be reduced, and the service life of the rolling body, the retainer and the rail is prolonged.

The limiting block 3 is installed on the retainer body 1 through a screw, and the limiting block 3 can be disassembled on the retainer body 1 and is used for replacement after the limiting block 3 is used for a long time and is abraded, so that the cost is reduced.

When the ultra-large slewing bearing thrust retainer guided by the rollers is used, rolling bodies (steel balls) are placed at the track positions of the slewing bearing, the retainer is placed above the rolling bodies, so that the pockets 2 correspond to the rolling bodies one to one, when the retainer is placed, the assembly of the retainer and the rolling bodies is completed when the rolling bodies are contacted with the spherical grooves 301 on the side surfaces of the limiting blocks 3, at the moment, under the action of the limiting blocks 3, the retainer body 1 and the upper and lower tracks of the slewing bearing are provided with gaps, so that the retainer is in a suspended state, when the slewing bearing operates, the rolling bodies roll in the tracks, the retainer can play a role in isolating and protecting the rolling bodies, and the retainer can not be contacted with the surfaces of the tracks, thereby not only preventing the retainer from being damaged due to friction, but also avoiding the damage caused after a soft belt area on the surfaces of the tracks is contacted with the retainer, the service life of the retainer and the slewing bearing is prolonged.

Claims

1. The utility model provides a roller guide's super large-scale slewing bearing thrust holder which characterized in that: including the holder body, the holder body is the loop configuration, sets up a plurality of pockets around holder body center evenly distributed in the thickness direction of holder body, and a plurality of stoppers around holder body center evenly distributed are installed to the upper surface position of holder body, and the both sides of stopper extend and the both sides face shaping of stopper has spherical recess to pocket top.

2. The roller-guided ultra-large slewing bearing thrust cage of claim 1, wherein: the limiting block is made of copper.

3. The roller-guided ultra-large slewing bearing thrust cage of claim 1, wherein: the limiting block is mounted on the retainer body through a screw.