CN2844554Y

CN2844554Y - Sealing ring of bearing

Info

Publication number: CN2844554Y
Application number: CN 200520116242
Authority: CN
Inventors: 胡先根; 徐建冲; 钱仰东
Original assignee: CIXING GROUP Co Ltd
Current assignee: CIXING GROUP Co Ltd
Priority date: 2005-11-08
Filing date: 2005-11-08
Publication date: 2006-12-06
Anticipated expiration: 2015-11-08

Abstract

The utility model relates to a sealing ring for bearings, which is composed of a whole body which is composed of a sealing body and a skeleton, wherein an edge of the sealing body is extended with a shoulder protector. When the bearing is used, the shoulder protector is matched with the end face of a bearing seat. The sealing ring is installed in a dust-proof slot of an outer ring of the bearing and is not loosened in the dust-proof slot. After the bearing is pressed in a hole of the bearing seat, the bearing is tightly pressed in the hole of the bearing seat through the end face of the shoulder protector of the sealing ring; the bearing is positioned by the end face of the outer ring of the bearing. In the process of the bearing running, the shoulder protector of the sealing ring rubs metal of the bearing seat so as to prevent the outer ring of the bearing from rotating and reduce abrasion of the outer ring of the bearing. In order to increase friction, the outer surface of the shoulder protector is pressed with a pattern slot or a reticulated mottles slot and consequently prevents relative motion of the bearing and the bearing seat. Rubber has damping effect so as to reduce vibration and noise of the bearing and extend service life of the bearing. The sealing ring can be used for the bearings with different structures and sizes and is particularly suitable for the bearings which are made of materials with large thermal expansion coefficient or thin-wall bearing seats.

Description

Seal ring of shaft bearing

Technical field

The utility model relates to a kind of seal ring, particularly a kind of seal ring of shaft bearing that can be used with the bearing of various different structures, different sizes.

Background technique

General bearing in use; be that bearing is pressed in the bearing support; but when bearing support adopts aluminium material or a kind of thin walled structures; the application feature of automobile bearing particularly; temperature variation is big; be everlasting-30～120 ℃; and the thermal expansion coefficient of aluminium is big; be subjected to the influence of external temperature, the varying aperture of bearing support is also bigger, is in the Spielpassung state through regular meeting between bearing and bearing support; at this moment will produce relative movement between bearing outer ring and the bearing support; more aggravate the wearing and tearing of bearing, increased noise and the vibration of using bearing part such as motor, caused bearing to lose efficacy in advance; reduced bearing working life, brought inconvenience and loss to the user.

It has only solved the problem of bearing high speed rotating hourglass fat the patent No. 00251506.7 " combined type bearing sealed ring ".

The patent No. 03250971.5 " a kind of magnetic gasket " be with magnetic material attached on the outer side skeleton of seal ring, improve the seal action of seal ring.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of seal ring of shaft bearing is provided, and not only simple in structure and good airproof performance, and can stop the wearing and tearing of bearing, and effectively reduce the noise of bearing application component, can guarantee the working life of bearing simultaneously again.

The technical scheme in the invention for solving the above technical problem is: seal ring of shaft bearing is made of the integral body that seal becomes with skeletal fixation, and an edge of described seal extends shoulder protector, and when bearing used, described shoulder protector cooperated with the bearing outer ring end face.

Compared with prior art, advantage of the present utility model is: seal ring of shaft bearing is mounted in location in the dustproof groove of bearing outer ring when using, and shoulder protector is exposed at the bearing outside, after bearing is pressed into bearing saddle bore, bearing just utilizes the end face of seal ring shoulder protector that bearing is pressed in the bearing saddle bore, locate with the bearing outer ring end face, seal ring and bearing support intermetallic produce friction in the bearing operation process, thereby stoped the rotation of bearing outer ring, for increasing frictional force, on the outer surface of seal ring shoulder protector, also be suppressed with decorative pattern or reticulate pattern groove, prevented the relative movement between bearing outer ring and the bearing support, effectively stop the abrasion of bearing, guaranteed the reliable operation of bearing, prolonged the working life of bearing, reduced the noise of bearing application component again, can various different structures and the size bearing on use supporting with it, using scope is wide, suit especially to make at the material big with thermal expansion coefficient or the thin wall shaft bearing on use.

Description of drawings

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

The right elevation of Fig. 2, Fig. 1 (the reticulate pattern groove is arranged on the shoulder protector outer surface).

The right elevation of Fig. 3, Fig. 1 (on the shoulder protector outer surface pattern groove being arranged).

Fig. 4, the utility model partly cut open enlarged view.

Fig. 5, user mode reference drawing of the present utility model (wears the deep groove ball bearing of dust cover).

Fig. 6, user mode reference drawing of the present utility model (wears the deep groove ball bearing of seal ring).

Fig. 7, user mode reference drawing of the present utility model (be pressed in the bearing support, band hold down gag).

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Seal ring 1 is made up of the integral body that seal 2 and skeleton 3 are fixed into, and seal is made by rubber, nylon or nonmetallic material.

Shoulder protector 4 is extended on the plane, one edge of seal 2, and shoulder protector 4 surfaces are the plane, as shown in Figure 1.

Can on the outer surface of shoulder protector 4, suppress reticulate pattern groove 5 for increasing frictional force, as shown in Figure 2, on the outer surface of shoulder protector 4, suppress pattern groove 6, as shown in Figure 3.

The outside dimension of seal ring 1 and bearing outside diameter are measure-alike or be slightly smaller than the outside dimension of bearing, and the thickness on shoulder protector 4 planes is greater than 0.5mm.

This seal ring 1 can be installed in the interior use of bearing outer ring 7 dustproof grooves of various different structures, different sizes, after seal ring 1 installs, can not be loosening in the dustproof groove of bearing, and guarantee the reliability of use.

Can be installed in deep groove ball bearing 8 interior uses that one side has dust cover 9, as shown in Figure 5.

Can be installed in deep groove ball bearing 10 interior uses that one side has general seal ring 11, as shown in Figure 6.

After bearing 10 was pressed into bearing support 12, an end face drive fit of shoulder protector 4 and bearing outer ring 7 utilized end face to compress bearing fixing in bearing support 12, reach 7 end faces location, outer ring, and be screwed hold down gag 13 in the other end of bearing support, bearing outer ring 7 can not rotated, as shown in Figure 7.

When bearing working turns round, produce friction between seal ring 1 and the metal, thereby stoped the rotation of bearing outer ring 7, promptly reduce the wearing and tearing of bearing, reduced bearing vibration and noise, guaranteed the working life of bearing.

Claims

1, a kind of seal ring of shaft bearing, the integral body that is fixed into by seal (2) and skeleton (3) constitutes, and it is characterized in that an edge of described seal (2) extends shoulder protector (4), and when bearing used, described shoulder protector (4) cooperated with the end face of bearing outer ring (7).

2, seal ring of shaft bearing according to claim 1 is characterized in that being suppressed with on the outer surface of described shoulder protector (4) pattern groove (6) or reticulate pattern groove (5) or is the plane.

3, seal ring of shaft bearing according to claim 1 is characterized in that the outside dimension of the outside dimension of described shoulder protector (4) and bearing is identical or less than bearing outside diameter.

4, seal ring of shaft bearing according to claim 1, the thickness that it is characterized in that described shoulder protector (4) is greater than 0.5mm.