CN204175802U

CN204175802U - A kind of bearing structure preventing outer ring from skidding

Info

Publication number: CN204175802U
Application number: CN201420000199.3U
Authority: CN
Inventors: 葛世东; 孙北奇; 于晓凯; 谢鹏飞
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2014-01-02
Filing date: 2014-01-02
Publication date: 2015-02-25
Anticipated expiration: 2024-01-02

Abstract

A kind of bearing structure preventing outer ring from skidding, relate to technical field of bearings, comprise the bearing body that bearing outer ring (1), bearing inner race (2), retainer (3) and rolling element (4) form, the outer surface of described bearing outer ring (1) is square structure, bearing inner race (2) is provided with in the inside of bearing outer ring (1), described rolling element (4) is arranged in the raceway between bearing outer ring (1) internal surface and bearing inner race (2) outer surface, and a plurality of rolling element (4) even partition is opened by described retainer (3); The utility model effectively avoids the skidding and creep problem that occur between heavily loaded lower bearing outer ring and bearing support, and dismounting is simple; Adopt Spielpassung between bearing outer ring and bearing support, also effectively avoid the problem that large interference state bearing ring breaks.

Description

A kind of bearing structure preventing outer ring from skidding

[technical field]

The utility model relates to technical field of bearings, and specifically the utility model relates to a kind of bearing structure preventing outer ring from skidding.

[background technique]

Known, the cooperation between Machine Design middle (center) bearing and axle and bearing support generally coordinates according to movement parts and adopts interference fit, and static element coordinates the principle adopting Spielpassung, to ensure that effective combination of movement parts and bearing fit face ensures the normal delivery of motion.

For the bearing that outer ring rotates, traditional bearing structure outer ring is cylndrical surface, bearing support is also cylndrical surface, two faces generally adopt interference fit to prevent from skidding between bearing outer ring and bearing support, the advantage of this structure is Internal and external cycle is that cylinder revolution processing is more convenient, but at shield machine, the heavy machinery fields such as railway wheel set bearing, under bearing is usually operated in very large axis or Radial Loads, be out of shape under local function to prevent bearing and cause skidding between bearing outer ring and bearing support, bearing outside diameter generally needs the interference fit adopting very large magnitude of interference with bearing support, easily will there is two problems in this, first bearing outer ring and bearing support magnitude of interference too conference make bearing assemble difficulty, generally can only adopt the method for heated mandrel bearing or freezing bearing outer ring to realize, heating outer ring easily makes bearing ring tempering, surface hardness reduces, affect bearing working life, there is corrosion in the freezing bearing parts that easily makes, bearing parts is caused to occur defect, the fault that bearing ring corrodes may be there is, in addition, magnitude of interference too conference makes bearing ring internal stress increase, and also there will be the situation of lasso fracture when serious, so ensure that under case of heavy load the positive connection of bearing outer ring and bearing support is the basic demand of those skilled in the art.

[summary of the invention]

In order to overcome the deficiency in background technique, the utility model discloses a kind of bearing structure preventing outer ring from skidding, by the outer surface of bearing outer ring 1 is set to square structure, the mounting surface of the bearing support matched with the outer surface of bearing outer ring 1 is set to square structure, the utility model effectively avoids the skidding and creep problem that occur between heavily loaded lower bearing outer ring and bearing support, and dismounting is simple.

For realizing above-mentioned model utility object, the utility model adopts following technological scheme:

A kind of bearing structure preventing outer ring from skidding, comprise bearing outer ring, bearing inner race, retainer and rolling element, the outer surface of described bearing outer ring is square structure, bearing inner race is provided with in the inside of bearing outer ring, described rolling element is arranged in the raceway between bearing outer ring internal surface and bearing inner race outer surface, and a plurality of rolling element even partition is opened by described retainer.

Owing to have employed technique scheme, the utility model has following superiority:

The bearing structure preventing outer ring from skidding described in the utility model, by the outer surface of bearing outer ring 1 is set to square structure, the mounting surface of the bearing support matched with the outer surface of bearing outer ring 1 is set to square structure, the utility model effectively avoids the skidding and creep problem that occur between heavily loaded lower bearing outer ring and bearing support, and dismounting is simple; Adopt Spielpassung between bearing outer ring and bearing support, also effectively avoid the problem that large interference state bearing ring breaks.

[accompanying drawing explanation]

Fig. 1 is structural representation of the present utility model;

In the drawings: 1, bearing outer ring; 2, bearing inner race; 3, retainer; 4, rolling element.

[embodiment]

Can explain the utility model in more detail by the following examples, the utility model is not limited to the following examples;

The design bearing preventing outer ring from skidding by reference to the accompanying drawings described in 1, comprise bearing outer ring 1, bearing inner race 2, retainer 3 and rolling element 4, the outer surface of described bearing outer ring 1 is set to square structure, and the mounting surface of the bearing support matched with bearing outer ring 1 outer surface is set to square structure; The mounting surface of described bearing outer ring 1 outer surface and bearing support is Spielpassung; Described Spielpassung 0-30um.

A kind of bearing structure preventing outer ring from skidding, comprise bearing outer ring 1, bearing inner race 2, retainer 3 and rolling element 4, the outer surface of described bearing outer ring 1 is square structure, bearing inner race 2 is provided with in the inside of bearing outer ring 1, described rolling element 4 is arranged in the raceway between bearing outer ring 1 internal surface and bearing inner race 2 outer surface, and a plurality of rolling element 4 even partition is opened by described retainer 3.

Implement the bearing structure preventing outer ring from skidding described in the utility model, in use the outer surface of bearing outer ring 1 is set to square structure, the mounting surface of the bearing support matched with bearing outer ring 1 outer surface is set to square structure, and the mounting surface of bearing outer ring 1 outer surface and bearing support adopts 0-30um Spielpassung; The utility model effectively avoids the skidding and creep problem that occur between heavily loaded lower bearing outer ring and bearing support, and dismounting is simple; Adopt Spielpassung between bearing outer ring and bearing support, also effectively avoid the problem that large interference state bearing ring breaks.

The non-detailed portion of the utility model is prior art.

The embodiment selected in this article in order to open goal of the invention of the present utility model, currently thinks to be suitable for, but it is to be understood that the utility model is intended to comprise all changes belonging to the embodiment within the scope of this design and model utility and improvement.

Claims

1. the bearing structure preventing outer ring from skidding, comprise bearing outer ring (1), bearing inner race (2), retainer (3) and rolling element (4), it is characterized in that: the outer surface of described bearing outer ring (1) is square structure, bearing inner race (2) is provided with in the inside of bearing outer ring (1), described rolling element (4) is arranged in the raceway between bearing outer ring (1) internal surface and bearing inner race (2) outer surface, a plurality of rolling element (4) even partition is opened by described retainer (3), the mounting surface of described bearing outer ring (1) outer surface and bearing support is Spielpassung, described Spielpassung 0-30um.