CN2763621Y

CN2763621Y - Structure for preventing outer race of bearing from skid

Info

Publication number: CN2763621Y
Application number: CN 200420114005
Authority: CN
Inventors: 吉志勇
Original assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Current assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Priority date: 2004-12-10
Filing date: 2004-12-10
Publication date: 2006-03-08
Anticipated expiration: 2014-12-10

Abstract

The utility model provides a non-skid structure of a bearing outer ring. The utility model does not change an existing public and common mode that a rolling bearing outer ring is matched with an inner hole of a bearing seat. Matching grooves are processed on the upper part of the inner hole of the bearing seat in the axial direction and on the outer circle of a rolling bearing in the axial direction, and are combined to form a closed cavity. A positioning pin which is matched with a cavity body is arranged in the cavity so as to preventing the bearing outer ring from sliding in the radial direction.

Description

A kind of anti-bearing outer ring structure of skidding

Technical field:

The utility model relates to a kind of bearing member, especially relates to a kind of bearing outer ring anti-skid structure.

Background technique:

Rolling bearing in use outer ring skids, and promptly with inner hole of bearing seat radially relative displacement takes place, cause shaking or burning out, and be the high-speed rotating equipment most common failure.At present, the public domestic and international housing washer and the cooperation of inner hole of bearing seat, all be designed to transition fit, more preferably select Spielpassung for use, with convenient for assembly and leave bearing thermal expansion space, because bearing outer ring and bearing chamber seat endoporus all are that grinding forms, the surface friction ractor is little, and both do not have effective location measure again, and it is excessive therefore to work as matching gap, or during stressed mutation, just take place radially to skid.

Summary of the invention:

The purpose of this utility model provides the structure that a kind of anti-bearing outer ring skids, and it solves radially skidding of bearing outer ring effectively, and can not make a difference to the bearing usability.

The technical solution of the utility model: a kind of anti-bearing outer ring structure of skidding, it does not change the at present public housing washer and the fit system of inner hole of bearing seat, axially all be processed with the coupling groove in inner hole of bearing seat upper axial and rolling bearing cylindrical, close the formation closed cavity, the locating stud that mates with cavity is housed in the cavity, plays radially anti-skidding positioning action.Described closed cavity is a kind of of circle, ellipse, square, rectangular, rhombus.

Beneficial effect:, solve the situation that bearing outer ring radially skids effectively because the utility model is equipped with locating stud between housing washer and inner hole of bearing seat.

Description of drawings:

Accompanying drawing 1 is the plan view of the utility model when not adorning bearing cap;

Accompanying drawing 2 is the structure sectional views behind the utility model dress bearing cap.

The drawing reference numeral explanation:

1, Da Gai; 2, rolling bearing; 3, location round pin; 4, inside cap; 5, outer bearing cover; 6, rotating shaft.

Embodiment

The utility model accompanying drawings is as follows:

See accompanying drawing 1,2, axially process a minor diameter half slot (milling out) at big lid 1 inner hole of bearing seat upper face with milling cutter, process the half slot (formed grinding wheel grinds) of same diameter in axial surface arbitrary position, rolling bearing 2 outer ring, with rolling bearing 2 bearing support of packing into, the alignment of two half slots, become a small sircle hole, the same diameter of in this circular groove, packing into then, the location round pin 3 that is made of a steel, owing to have location round pin 3 to stop that both matching gaps are big again between housing washer and the inner hole of bearing seat, also can not take place radially to skid.Outer bearing cover 4,5 in loading onto is at last clamped location round pin 3, prevents to escape from.Rotating shaft 6 is installed in the bearing.

Claims

1, a kind of anti-bearing outer ring structure of skidding, rolling bearing is installed in the bearing support, it is characterized in that: in inner hole of bearing seat upper axial and rolling bearing cylindrical the coupling groove is arranged all axially, close the formation closed cavity, the locating stud with the cavity coupling is housed in the cavity.

2, a kind of anti-bearing outer ring according to claim 1 structure of skidding is characterized in that: described closed cavity is a kind of for circle, ellipse, square, rectangular, rhombus.

3, a kind of anti-bearing outer ring according to claim 1 structure of skidding, it is characterized in that: described groove leads to the other end from an end.

4, a kind of anti-bearing outer ring according to claim 1 structure of skidding, it is characterized in that: described locating stud is by interior outer bearing cover clamping.