CN101240817A

CN101240817A - Bearing sealed ring possessing axial clearance compensation function

Info

Publication number: CN101240817A
Application number: CNA2008100597939A
Authority: CN
Inventors: 徐建冲; 钱仰东
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-29
Filing date: 2008-02-29
Publication date: 2008-08-13

Abstract

A bearing sealing ring with axial clearance compensate function is made up of sealing body and framework, sealing body is mounted in dustproof groove of bearing, external periphery of the sealing body extends out shoulder protector whose appearance has high elastic body, and the elastic body is matched with axial end-face of bearing support , interior surface of the shoulder protector clings to outer ring end-face of bearing. Bearing is embedded into bearing support hole by end-face of sealing ring shoulder protector, using bearing outer ring end-face locating, friction between bearing running sealing ring and bearing support is to stop bearing outer ring rotary, so relative movement of them is prevented, Sealing ring is made of rubber and has elastic body, compressing inverse spring is used to compensate size of axial gap, so electrical machine mounting is more convenient, elastomeric buffer can decrease electrical machine inside noise, reduces electrical machine vibration, prevents bearing abrasion effectively, assures bearing reliable operation, prolongs bearing service lifetime, and suits different structural bearing matching.

Description

Bearing sealed ring with axial clearance compensation function

Technical field

The present invention relates to a kind of bearing sealed ring, particularly a kind of can with various different structures, the matching used bearing sealed rings of bearing of different sizes with bearing play compensate function.

Background technique

During general Bearing Installation; always bearing is pressed in the bearing support and its drive fit; but, makes bearing support when adopting aluminium material; or a kind of thin walled structures; and the bearing working situation is in the big place of temperature variation; at this moment big because of the aluminium expansion coefficient; be subjected to the influence of external temperature big; make the varying aperture of bearing support big; therefore be in the Spielpassung state through regular meeting between bearing and bearing support, will produce relative movement between bearing outer ring and bearing support, more aggravated the wearing and tearing of bearing; the vibration and the noise that use the motor of bearing part have also been increased; axial float in use also can take place in motor simultaneously, has more increased the noise and the vibration of motor, and above-mentioned factor will cause bearing to lose efficacy in advance; reduced the working life of bearing, brought many inconvenience and loss to the user.

Patent No. CN200620153485.9 " a kind of deep groove ball bearing black box ", only provide a kind of traditional single lipped joint touch Sealing to change lips contact seal assembly into, all have the characteristics of good airproof performance in running, static process, sealability is considerably beyond the conventional seals assembly.

The patent No. 02806883.1 " the rolling bearing seal arrangement with radial deflection compensate function " provides a kind of radial deflection that is produced by different load that compensated by Sealing, the sealing lip of Sealing always is attached on the sealing surface best, it is unsuitable stressed that Sealing is not had, the wearing and tearing of Sealing have been reduced thus, and the working life of improving Sealing, but it only suits to use on rolling bearing.

Summary of the invention

Technical problem to be solved by this invention is: a kind of bearing sealed ring with axial clearance compensation function is provided, simple in structure, easily make, can with the supporting use of the bearing of various different structures, make between bearing outer ring and bearing support and do not have relative movement, effectively reduce the vibration and the noise of bearing application component, the working life of improving bearing.

The present invention addresses the above problem the technological scheme that is adopted: the bearing sealed ring with axial clearance compensation function, seal ring is made of the integral body that seal becomes with skeletal fixation, seal is installed in the dustproof groove of bearing, the outward edge of described seal extends shoulder protector, the high elastomer that rises is arranged on the outer surface of described shoulder protector, elastomer cooperates with the bearing support axial end, and the internal surface of described shoulder protector is close to the cycle surface of bearing.

Compared with prior art, the invention has the advantages that: this intermediate portion with bearing sealed ring of axial clearance compensation function is mounted in bearing outer ring, locate in the dustproof groove of bearing inner race, and have elastomeric shoulder protector partly is to be attached on the end face of bearing outer ring, 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, make seal ring and bearing support intermetallic produce friction in the bearing operation process, thereby stoped the rotation of bearing outer ring, prevented the relative movement between bearing outer ring and the bearing support, seal ring employing rubber is made and is also had elastomer on it in addition, but in the assembling of bearing with use the also size of compensating axial clearance, make the installation of motor more convenient, promptly utilize the rebounding force after elastomer is compressed to come the axial clearance of bearing is compensated, and utilize elastomeric buffer function, subdue of the conduction of motor internal noise to the external world, reduce the vibration of motor, effectively stop the wearing and tearing of bearing, guaranteed the reliable operation of bearing, prolonged the working life of bearing, reduce the noise of bearing application component again, it is simple in structure, easily make, be suitable for the supporting use of bearing of different structure, also can use by compensating axial clearance in not having the small motor of axial preload, using scope is wide.

Description of drawings

Fig. 1, structural representation of the present invention (partial perspective view).

Fig. 2, alternative plan structural representation of the present invention (partial perspective view)

Fig. 3, structural representation of the present invention (sectional view).

Fig. 4, user mode reference drawing of the present invention (one side has the deep groove ball bearing of seal ring).

The plan view of Fig. 5, Fig. 2.

Embodiment

Below in conjunction with accompanying drawing embodiments of the invention are further described.

Seal ring 1,1 ' by seal 2,2 ' and the integral body that skeleton 3 is fixed into form seal 2,2 ' make by rubber, nylon or nonmetallic material.

Seal 2,2 ' the outward edge plane extend shoulder protector 2-1,2 '-1, shoulder protector 2-1,2 '-1 internal surface is the plane, and uniform, the high elastomer 2-2,2 '-2 that rises is arranged on the outer surface, is distributed on the circumference.

The cross section of elastomer 2-2 is a rectangle plane, and as shown in Figure 1, the elastomer end shape is semicircle or tack (figure does not draw), and elastomer 2 '-2 cross sections are semicircle, as shown in Figure 2, or hemisphere (figure does not draw).

The outside dimension of seal ring 1 and bearing outside diameter are measure-alike or be slightly smaller than the outside dimension of bearing, as shown in Figure 4.

Seal ring 1 can be installed in various different structures, use in the bearing outer ring of different sizes, the dustproof groove of bearing inner race, can not be loosening in bearing 4 dustproof grooves after seal ring 1 installs, guarantee the reliability of using, structure with deep groove ball bearing with cover is an example, as shown in Figure 4.

After bearing 4 is pressed into bearing support, one end face drive fit of shoulder protector 2-1,2 '-1 and bearing outer ring utilizes end face to compress bearing fixing behind bearing support, reaches the cycle surface location, and be screwed hold down gag in the other end of bearing support, bearing outer ring can not moved.

When bearing 4 work runnings, seal ring 1,1 ' and bearing support between produce friction, thereby stoped the rotation of bearing outer ring, promptly reduce the wearing and tearing of bearing, utilize the rebounding force after elastomer 2-2,2 '-2 is compressed to come bearing axial clearance is compensated simultaneously, and utilize the buffer function of elastomer 2-2,2 '-2, cut down motor or bearing application component interior noise and conduct, thereby reduce the vibration and the noise of motor or bearing application component to the external world.

Claims

1, a kind of bearing sealed ring with axial clearance compensation function, seal ring (1,1 ') is made of the integral body that seal (2,2 ') and skeleton (3) are fixed into, seal is installed in the dustproof groove of bearing (4), the outward edge that it is characterized in that described seal extends shoulder protector (2-1,2 '-1), the high elastomer that rises is arranged on the outer surface of described shoulder protector (2-1,2 '-1), elastomer cooperates with the bearing support axial end, and the internal surface of described shoulder protector is close to the cycle surface of bearing (4).

2, the bearing sealed ring with axial clearance compensation function according to claim 1, the cross section that it is characterized in that elastomer (2-2) is a rectangle plane, elastomer (2-2) end shape is semicircle or tack shape.

3, the bearing sealed ring with axial clearance compensation function according to claim 1 is characterized in that the cross section of elastomer (2 '-2) is semicircle or hemisphere.