CN202326749U

CN202326749U - Bearing sealing structure

Info

Publication number: CN202326749U
Application number: CN2011204677677U
Authority: CN
Inventors: 孙惠勇
Original assignee: WUXI MINLIAN BEARING MANUFACTURING Co Ltd
Current assignee: WUXI MINLIAN BEARING MANUFACTURING Co Ltd
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-07-11
Anticipated expiration: 2021-11-22

Abstract

The utility model relates to a bearing sealing structure and in particular relates to a sealing structure applied to a self-aligning push-type clutch release bearing on a heavy-duty truck, an engineering truck and a city bus. A spring assembly comprises a sealing lip I and a sealing lip II; the spring assembly is mounted on a mounting surface of a sleeve and inserted into an outer ring mounting surface on the inner edge of an outer ring annular body so as to connect the outer ring with the release sleeve; the inner surface of the outer ring and the outer surface of the inner ring are provided with corresponding grooves in the circumferential direction respectively; steel balls are positioned in the grooves of the outer ring and the inner ring by use of a retainer; a sealing ring is arranged on the left side of the retainer; and a release bearing is mounted on the release sleeve. The bearing sealing structure provided by the utility model has a simple, compact and reasonable structure; when the bearing works, the inner ring of the bearing is subjected to an axial force so that the inner ring end surface of the bearing is contacted with the lips of the spring assembly to form contact seal; and moreover, the lips of the spring assembly are in a certain angle, and the friction force in contact is reduced.

Description

Bearing seal structure

Technical field

The utility model relates to a kind of bearing seal structure, specifically is used for the sealing configuration from aligning push type clutch release bearing on heavy duty truck, engineering truck and the city bus.

Background technique

Existing sealing configuration from the aligning vehicle clutch disengaging bearing adopts the rubber seal of a sideband skeleton, is installed in the bearing outer ring seal groove, and the inner lip of seal ring is contacted with the inner ring cylindrical; Another side adopts mechanical sealing, because bearing can produce a large amount of heats after running, along with the increase of heat; After surpassing certain numerical value, grease can dilute, and flows out from the mechanical type sealing part; Bearing lacks and can lose efficacy in advance after lubricated, influences working life.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned deficiency, thereby a kind of have sealing lip, good sealing effect, bearing sealed ring simple in structure are provided.

According to the technological scheme that the utility model provides, said bearing seal structure comprises inner ring, seal ring, outer ring, steel ball, retainer and release sleeve, it is characterized in that: also include spring assembly; Said spring assembly includes seal lip I and seal lip II; The longitudinal section of said outer ring is the L type, makes the outer ring form a cylindrical body and an annular solid, and said annular solid is positioned at the right-hand member of cylindrical body, and extends to the center of cylindrical body, at outer ring attachment face of inner edge formation of annular solid; The sleeve attachment face is arranged on the said release sleeve; Said spring assembly is installed on the attachment face of sleeve; And insert the outer ring attachment face that is positioned at said annular solid inner edge, and leave radial clearance between the internal surface of the outer surface of spring assembly and outer ring attachment face, outer ring and release sleeve are linked together; And the seal lip I is contacted with the inner ring its right end face, the other end is fastened on the vertical surface in left side, outer ring; The internal surface of said outer ring and the outer surface of inner ring have the mutual corresponding groove of circumferencial direction respectively; Said steel ball utilizes retainer to be positioned in the said groove of outer ring and inner ring; Left side at retainer is provided with seal ring; Said release bearing utilizes this outer ring attachment face sky to be enclosed within on the release sleeve attachment face of release sleeve.

On the right side of sleeve attachment face the sleeve positioning ring is set, the left side of said sleeve positioning ring is the sleeve locating face that is used to locate the outer ring, and said sleeve locating face is perpendicular to said sleeve attachment face; There is the outer ring locating face right side of said annular solid, and said sleeve locating face (cooperates the location with said outer ring locating face.

The outer wall that said release sleeve left side is one section becomes step-like.

Compared with present technology the utility model has the following advantages:

The utility model is simple, compact and reasonable for structure; Bearing is when work, and the release bearing inner ring receives axial force, and release bearing inner ring end face is contacted with spring assembly seal lip, forms contact seal, and in addition, spring assembly seal lip adopts certain angle, the frictional force when reducing to contact.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the novel spring assembly lip of this a practicality structural representation.

Embodiment

Following the utility model will combine the embodiment in the accompanying drawing to further describe:

Like Fig. 1 ~ shown in Figure 2, the utility model mainly is made up of inner ring 1, seal ring 2, outer ring 3, steel ball 4, retainer 5, spring assembly 6 and release sleeve 7; Said spring assembly 6 includes seal lip I 61 and seal lip II 62; On the said release sleeve 7 sleeve attachment face 71 is arranged; Said spring assembly 6 is installed on the sleeve attachment face 71 of release sleeve 7; And in the outer ring attachment face of annular solid 32 inner edges of insertion outer ring 3, outer ring 3 and release sleeve 7 are linked together, the internal surface of the outer surface of spring assembly 6 and outer ring attachment face leaves radial clearance; And lip I 61 is contacted with inner ring 1 its right end face, the other end is fastened on the 3 left vertical faces of outer ring; The outer surface of the internal surface of said outer ring 3 and inner ring 1 has the mutual corresponding groove of circumferencial direction respectively; Said steel ball 4 utilizes retainer 5 to be positioned in the said groove of outer ring 3 and inner ring 1; In the left side of retainer 5 seal ring 2 is set; The longitudinal section of said outer ring 3 is the L type, makes outer ring 3 form a cylindrical body 31 and an annular solid 32, and said annular solid 32 is positioned at the right-hand member of cylindrical body 31, and extends to the center of cylindrical body 31, at outer ring attachment face of inner edge formation of annular solid 32; Said release bearing outer ring attachment face sky is enclosed within on the release sleeve 7.On the right side of sleeve attachment face 71 sleeve positioning ring 72 is set, the left side of said sleeve positioning ring 72 is the sleeve locating face 73 that is used to locate outer ring 3, and said sleeve locating face 73 is perpendicular to said sleeve attachment face 71; There is the outer ring locating face right side of said annular solid 32, and said sleeve locating face 73 cooperates the location with said outer ring locating face; The outer wall that said release sleeve 7 left sides are one section becomes step-like.

This uses novel work engineering:

The utility model is before work, and release bearing inner ring 1 contacts with spring assembly 6 seal lip I, and this moment, temperature rose slowly, taked single lip seal; During work, release bearing inner ring 1 contacts with clutch diaphragm, receives responsive to axial force, and release bearing inner ring 1 moves to spring assembly 6 directions, and release bearing inner ring 1 end face contacts with spring assembly 6 seal lip II, forms the sealing of lips mouth.

Claims

1. a bearing seal structure comprises inner ring (1), seal ring (2), outer ring (3), steel ball (4), retainer (5) and release sleeve (7), it is characterized in that: also include spring assembly (6); Said spring assembly (6) includes seal lip I (61) and seal lip II (62); The longitudinal section of said outer ring (3) is the L type; Make outer ring (3) form a cylindrical body (31) and an annular solid (32); Said annular solid (32) is positioned at the right-hand member of cylindrical body (31); And to the extension of the center of cylindrical body (31), at outer ring attachment face of inner edge formation of annular solid (32); Sleeve attachment face (71) is arranged on the said release sleeve (7); Said spring assembly is installed on the attachment face (71) of sleeve (7); And insertion is positioned at the outer ring attachment face of said annular solid (32) inner edge; Leave radial clearance between the outer surface of spring assembly (6) and the internal surface of outer ring attachment face; Outer ring (3) and release sleeve (7) are linked together, and seal lip I (61) is contacted with inner ring (1) its right end face, the other end is fastened on the vertical surface in left side, outer ring (3); The outer surface of the internal surface of said outer ring (3) and inner ring (1) has the mutual corresponding groove of circumferencial direction respectively; Said steel ball (4) utilizes retainer (5) to be positioned in the said groove of outer ring (3) and inner ring (1); In the left side of retainer (5) seal ring (2) is set; Said release bearing utilizes this outer ring attachment face sky to be enclosed within on the release sleeve attachment face (71) of release sleeve (7).

2. bearing seal structure as claimed in claim 1; It is characterized in that: sleeve positioning ring (72) is set on the right side of sleeve attachment face (71); The left side of said sleeve positioning ring (72) is for being used to locate the sleeve locating face (73) of outer ring (3), and said sleeve locating face (73) is perpendicular to said sleeve attachment face (71); There is the outer ring locating face right side of said annular solid (32), and said sleeve locating face (73) cooperates the location with said outer ring locating face.

3. bearing seal structure as claimed in claim 1 is characterized in that: the outer wall that said release sleeve (7) left side is a section becomes step-like.