CN211778581U

CN211778581U - Sealing structure of roller bearing

Info

Publication number: CN211778581U
Application number: CN202020201242.8U
Authority: CN
Inventors: 王志良; 屈平; 郭静瑜; 沈忠明; 黄立
Original assignee: Csc Bearing Co ltd
Current assignee: Suzhou Great Wall Precision Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-10-27
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a roller bearing's seal structure, include: install the sealing member between roller bearing inner race and roller bearing outer lane, sealing member fixed mounting be in on the flange external diameter of roller bearing inner race, just contain one or more seal lip on the sealing member, the hole surface interference fit of seal lip and roller bearing outer lane. In this way, the utility model discloses can reduce the inside risk that gets into the cotton fibre dust of bearing, improve the sealing capacity of bearing self, and need not realize through the change of bearing.

Description

Sealing structure of roller bearing

Technical Field

The utility model relates to a bearing field especially relates to a roller bearing's seal structure.

Background

As is known, a roller bearing is generally used in a spinning machine, a working environment has more cotton wool and dust, the roller bearing cannot easily use a sealing element due to the particularity of the roller bearing, at present, the roller bearing is protected by knurling the inner ring flange, so that the dust such as the cotton wool is adsorbed on the bearing inner ring flange, and the bearing can be damaged in the past.

In order to prevent this, workers regularly replace the roller bearings on the spinning machine, which increases the risk of machine failure, increases labor costs, and costs associated with frequent bearing replacement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves is: to prior art's not enough, provide a roller bearing's seal structure, can reduce the inside risk that gets into the cotton fibre dust of bearing, improve the sealing capacity of bearing self, and need not realize through the change of bearing.

In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a sealing structure of a roller bearing, comprising: install the sealing member between roller bearing inner race and roller bearing outer lane, sealing member fixed mounting be in on the flange external diameter of roller bearing inner race, just contain one or more seal lip on the sealing member, the hole surface interference fit of seal lip and roller bearing outer lane.

In a preferred embodiment of the present invention, the sealing member is in interference fit with both sides of the rib of the inner ring of the roller bearing.

In a preferred embodiment of the present invention, the sealing member includes a steel plate installed on both sides of the rib of the inner ring of the roller bearing, and a wrapping layer wrapped outside the steel plate.

In a preferred embodiment of the present invention, the sealing lip is fitted to the steel plate and the wrapping layer.

In a preferred embodiment of the present invention, the material of the wrapping layer is rubber, plastic or fiber.

In a preferred embodiment of the present invention, the steel plate and the inner ring of the roller bearing are fixed by welding, adhering, or clamping.

In a preferred embodiment of the present invention, the roller bearing inner ring has a sealing groove formed on both sides of the rib, and the sealing member is injected into the sealing groove.

In a preferred embodiment of the present invention, the roller bearing inner ring has two side flanges with small grooves for axial fixation.

In a preferred embodiment of the present invention, the sealing member is a unitary structure.

In a preferred embodiment of the present invention, the sealing member is made of plastic, rubber, fiber, glass or metal.

The utility model has the advantages that: through the sealing member of installation a special structural design between roller bearing inner race and roller bearing outer lane for filths such as outside cotton fibre dust are kept apart in roller bearing's outside, can reduce the inside risk that gets into the cotton fibre dust of bearing, improve the sealing capacity of bearing self, and easily install, need not realize through the change of bearing.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a sealing structure of a roller bearing according to the present invention;

fig. 2 is a schematic structural view of a second embodiment of a sealing structure of a roller bearing according to the present invention;

the parts in the drawings are numbered as follows: 1. the roller bearing comprises a roller bearing inner ring, 2 a roller bearing outer ring, 3 a sealing element, 301 a steel plate, 302 a wrapping layer, 303 and a sealing lip.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Example one

A sealing structure of a roller bearing, as shown in fig. 1, comprising: install sealing member 3 between roller bearing inner race 1 and roller bearing

outer race

2, 3 fixed mounting of sealing member are in on the flange external diameter of roller bearing inner race 1, just contain a seal lip 303 on the sealing member 3, seal lip 303 and roller bearing outer race 2's hole surface interference fit.

And the sealing element 3 is in interference fit with two sides of the flange of the roller bearing inner ring 1.

The sealing element 3 comprises steel plates 301 arranged on two sides of the rib of the roller bearing inner ring 1 and wrapping layers 302 wrapping the steel plates 301.

The sealing lip 303 cooperates with the steel plate 301 and the wrapping layer 302.

The material of the wrapping layer 302 is rubber, plastic or fiber, and may be other wrapping materials.

The steel sheet 301 with the mounting means of roller bearing inner circle 1's flange both sides adopts welded fastening, pastes fixedly or presss from both sides tightly fixedly, also can be other fixed mode, guarantees steel sheet 301 with roller bearing inner circle 1's flange both sides interference fit can.

The sealing element 3, the roller bearing inner ring 1 and the roller bearing outer ring 2 form a sealing cavity, so that outside dirt such as cotton wool dust is isolated outside the bearing and cannot enter the bearing, and the sealing function is realized. And the sealing structure has no requirement on the roller bearing outer ring 2, is easy to install and can meet the requirement of not influencing due assembly relation.

Example two

A sealing structure of a roller bearing, as shown in fig. 2, comprising: install sealing member 3 between roller bearing inner race 1 and roller bearing

outer race

The sealing groove is formed in two sides of the flange of the roller bearing inner ring 1, and small grooves for axial fixing are reserved in two sides of the flange of the roller bearing inner ring 1 and are used for preventing the finally formed sealing element 3 from generating axial displacement and losing sealing performance.

The sealing element 3 is injected into the sealing groove by a special process.

The sealing member 3 is an integral structure and is made of plastic (PTFE, etc.), rubber (NBR, etc.), various fibers, glass, metal, or the like.

The utility model discloses a roller bearing's seal structure, through the sealing member of installing a special structural design between roller bearing inner circle and roller bearing outer lane for foul such as outside cotton fibre dust is kept apart in roller bearing's outside, can reduce the inside risk that gets into the cotton fibre dust of bearing, improves the sealing capacity of bearing self, and easily installs, need not realize through the change of bearing.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sealing structure of a roller bearing, comprising: install the sealing member between roller bearing inner race and roller bearing outer lane, sealing member fixed mounting be in on the flange external diameter of roller bearing inner race, just contain one or more seal lip on the sealing member, the hole surface interference fit of seal lip and roller bearing outer lane.

2. A sealing structure of a roller bearing according to claim 1, characterized in that the sealing element is in interference fit with two sides of the rib of the inner ring of the roller bearing.

3. The sealing structure of the roller bearing according to claim 2, wherein the sealing member comprises steel plates mounted on both sides of the rib of the inner ring of the roller bearing, and a wrapping layer wrapping the steel plates.

4. A sealing arrangement for a roller bearing according to claim 3, wherein the sealing lip cooperates with the steel plate and the wrapping layer.

5. The roller bearing sealing structure of claim 3, wherein the wrapping layer is made of rubber, plastic or fiber.

6. The sealing structure of the roller bearing according to claim 3, wherein the steel plate and the inner ring of the roller bearing are fixed by welding, sticking or clamping.

7. The sealing structure of the roller bearing according to claim 1, wherein sealing grooves are formed on two sides of the rib of the inner ring of the roller bearing, and the sealing member is injected into the sealing grooves.

8. A sealing structure of roller bearing according to claim 7, characterized in that, axial fixing small grooves are left on both sides of the rib of the roller bearing inner ring.

9. A sealing arrangement for a roller bearing according to claim 7, in which the seal is of unitary construction.

10. The roller bearing sealing structure of claim 9, wherein the sealing member is made of plastic, rubber, fiber, glass or metal.