CN203434782U

CN203434782U - Structure capable of preventing motor bearing from running outer ring

Info

Publication number: CN203434782U
Application number: CN201320558074.8U
Authority: CN
Inventors: 刘小东
Original assignee: Zhongda Motors Co Ltd
Current assignee: Zhongda Motors Co Ltd
Priority date: 2013-09-09
Filing date: 2013-09-09
Publication date: 2014-02-12
Anticipated expiration: 2023-09-09

Abstract

The utility model relates to a structure capable of preventing a motor bearing from running an outer ring. A bearing is arranged on a motor shaft. A bearing inner cover is installed on a motor shaft of an inner side of the bearing. An outer side of the bearing is provided with a bearing outer cover. A circlip is installed on a motor shaft of the outer side of the bearing. An oil flinger is arranged between the circlip and the bearing. An inner end surface of the oil flinger bears against an inner-ring outer end surface of the bearing. An outer end surface of the oil flinger bears against an inner end surface of the circlip. An outer ring of the bearing is sleeved and connected with a bushing. An inner end surface of the bushing bears against an outer end surface of the bearing inner cover. An outer end surface of the bushing bears against an inner end surface of the bearing outer cover. The bushing is sleeved with an end cap. The bearing inner cover, the end cap and the bearing outer cover are fixed into one body through a bolt. The structure of the utility model is simple, compact and reasonable. A problem that the bearing runs the outer ring is effectively solved. A service life of the motor bearing is greatly prolonged.

Description

Can prevent the structure that motor bearings is acted as a travelling agent and enclosed

Technical field

The utility model relates to a kind of motor bearings structure, especially a kind of structure that can prevent that motor bearings from acting as a travelling agent and enclosing.

Background technology

Bearing is as the interface unit of motor stationary part and rotating part, and its quality is determining that can motor move continuously, even affects electrical machinery life.In recent years, motor bearings race circle problem is day by day obvious, but the many times rational measure of neither one solves.

Bearing runs circle minutes two kinds: a kind of is the bearing outer ring of acting as a travelling agent, and between bearing outer ring and bearing chamber, relative displacement occurs; Another kind is that bearing runs inner ring, between bearing inner race and axle journal, relative displacement occurs.Under normal circumstances, between bearing outer ring, inner ring and axle journal, without relative displacement, just calculate and run well.When bearing runs circle, no matter act as a travelling agent circle or inner ring, always motor at failure operation, bearing life shortens, even can motor damage when serious.

At present, generally solve bearing race circle and have two kinds of methods:

1, at bearing chamber surface center-punching, by burr fastener shaft bearing outer-ring, center-punching on axle, by the way of the fastening bearing in pinnacle.Like this bearing holder (housing, cover) is had to damage, concentricity is difficult to ensure card.

2, on bearing chamber surface, be coated with the way of fluid sealant.Bearing run off can play a role for the little motor of wear extent with bonding agent, but can not guarantee concentricity, simultaneously the more difficult motor of tearing open.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, effective and motor cycle of operation long can prevent the act as a travelling agent structure of circle of motor bearings.

The technical scheme providing according to the utility model, the described structure that can prevent that motor bearings from acting as a travelling agent and enclosing, bearing is installed on motor shaft, on the motor shaft of bearing inner side, internal bearing cover is installed, outside at bearing is provided with bearing end cover, the outer ring inner face of the outer face of internal bearing cover and bearing offsets, the outer face, outer ring of the inner face of bearing end cover and bearing offsets, on the motor shaft in bearing outside, circlip is installed, between circlip and bearing, be provided with disc, the inner ring outer face of the inner face of disc and bearing offsets, the outer face of disc and the inner face of circlip offset, on the outer ring of bearing, be socketed with edge cover, the inner face of edge cover and the outer face of internal bearing cover offset, the outer face of edge cover and the inner face of bearing end cover offset, at edge, put and be socketed with end cap, internal bearing cover, end cap and bearing end cover are bolted one.

The wall thickness of described edge cover is 5 ~ 6mm.

In the outer face of internal bearing cover, have internal bearing cover bulge loop, the cylindrical of internal bearing cover bulge loop is concordant with the outer ring cylindrical of bearing.

The inner face of bearing end cover has bearing end cover bulge loop, and the cylindrical of bearing end cover bulge loop is concordant with the outer ring cylindrical of bearing.

The two ends of described edge cover are enclosed within on bearing end cover bulge loop and internal bearing cover bulge loop, and the inner circle of edge cover and the cylindrical of bearing end cover bulge loop are matched in clearance, and the inner circle of edge cover and the cylindrical of internal bearing cover bulge loop are matched in clearance.

The utility model is simple in structure, compact, reasonable, has effectively solved the problem that bearing is acted as a travelling agent and enclosed, and has greatly extended the useful life of motor bearings.

Accompanying drawing explanation

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

Embodiment

Below in conjunction with specific embodiment, the utility model is described in further detail.

This can prevent the structure that motor bearings is acted as a travelling agent and enclosed, bearing 5 is installed on motor shaft, internal bearing cover 1 is installed on the motor shaft of bearing 5 inner sides, in the outside of bearing 5, be provided with bearing end cover 4, the outer ring inner face of the outer face of internal bearing cover 1 and bearing 5 offsets, the outer face, outer ring of the inner face of bearing end cover 4 and bearing 5 offsets, circlip 6 is installed on the motor shaft in bearing 5 outsides, between circlip 6 and bearing 5, be provided with disc 7, the inner ring outer face of the inner face of disc 7 and bearing 5 offsets, the inner face of the outer face of disc 7 and circlip 6 offsets, on the outer ring of bearing 5, be socketed with edge cover 3, the inner face of edge cover 3 and the outer face of internal bearing cover 1 offset, the outer face of edge cover 3 and the inner face of bearing end cover 4 offset, on edge cover 3, be socketed with end cap 2, internal bearing cover 1, end cap 2 is bolted one with bearing end cover 4.

The wall thickness of described edge cover 3 is 5 ~ 6mm.

In the outer face of internal bearing cover 1, have internal bearing cover bulge loop 1.1, the cylindrical of internal bearing cover bulge loop 1.1 is concordant with the outer ring cylindrical of bearing 5.

The inner face of bearing end cover 4 has bearing end cover bulge loop 4.1, and the cylindrical of bearing end cover bulge loop 4.1 is concordant with the outer ring cylindrical of bearing 5.

The two ends of described edge cover 3 are enclosed within on bearing end cover bulge loop 4.1 and internal bearing cover bulge loop 1.1, and the inner circle of edge cover 3 and the cylindrical of bearing end cover bulge loop 4.1 are matched in clearance, and the inner circle of edge cover 3 and the cylindrical of internal bearing cover bulge loop 1.1 are matched in clearance.

The utility model adopts and after the bearing chamber finish turning of end cap 2, is inserted in edge cover 3, and bearing 5 is by bearing end cover 4 and internal bearing cover 1 locking.The utility model adopts the structure of bearing with end cover chamber finish turning, on the almost not impact of the mechanical property of end cap 2.

Claims

One kind can prevent motor bearings act as a travelling agent circle structure, bearing (5) is installed on motor shaft, on the motor shaft of bearing (5) inner side, internal bearing cover (1) is installed, in the outside of bearing (5), be provided with bearing end cover (4), the outer ring inner face of the outer face of internal bearing cover (1) and bearing (5) offsets, the outer face, outer ring of the inner face of bearing end cover (4) and bearing (5) offsets, on the motor shaft in bearing (5) outside, circlip (6) is installed, between circlip (6) and bearing (5), be provided with disc (7), the inner ring outer face of the inner face of disc (7) and bearing (5) offsets, the inner face of the outer face of disc (7) and circlip (6) offsets, it is characterized in that: on the outer ring of bearing (5), be socketed with edge cover (3), the edge cover inner face of (3) and the outer face of internal bearing cover (1) offset, the edge cover outer face of (3) and the inner face of bearing end cover (4) offset, on edge cover (3), be socketed with end cap (2), internal bearing cover (1), end cap (2) is bolted one with bearing end cover (4).
2. the structure that can prevent that motor bearings from acting as a travelling agent and enclosing as claimed in claim 1, is characterized in that: the wall thickness of described edge cover (3) is 5 ~ 6mm.
3. the structure that can prevent that motor bearings from acting as a travelling agent and enclosing as claimed in claim 1, is characterized in that: in the outer face of internal bearing cover (1), have internal bearing cover bulge loop (1.1), the cylindrical of internal bearing cover bulge loop (1.1) is concordant with the outer ring cylindrical of bearing (5).
4. the structure that can prevent that motor bearings from acting as a travelling agent and enclosing as claimed in claim 1, is characterized in that: the inner face of bearing end cover (4) has bearing end cover bulge loop (4.1), and the cylindrical of bearing end cover bulge loop (4.1) is concordant with the outer ring cylindrical of bearing (5).
As claimed in claim 1 can prevent motor bearings act as a travelling agent circle structure, it is characterized in that: the two ends of described edge cover (3) are enclosed within on bearing end cover bulge loop (4.1) and internal bearing cover bulge loop (1.1), the edge cover inner circle of (3) and the cylindrical of bearing end cover bulge loop (4.1) are matched in clearance, and the edge cover inner circle of (3) and the cylindrical of internal bearing cover bulge loop (1.1) are matched in clearance.