CN210949574U

CN210949574U - Chain wheel bearing's sealing member locking structure

Info

Publication number: CN210949574U
Application number: CN201921566044.5U
Authority: CN
Inventors: 殷予刚
Original assignee: C&U Group Ltd; Shanghai C&U Group Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-07
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a sprocket bearing's sealing member anti loosening structure, including outer lane, inner circle and the sealing member of setting between outer lane and inner circle, the outside one end of sealing member axial is provided with the retaining ring that prevents the outside slip of sealing member axial, outer lane inner wall radial extension is provided with the lug that prevents the inside slip of sealing member axial. The utility model provides a provide effective sealing when can bearing chain impact load, both prevent that the sealing member axial from outwards deviating from, prevent again that the sealing member from inwards sliding and interfering roller pivoted sprocket bearing's sealing member anti loosening structure.

Description

Chain wheel bearing's sealing member locking structure

Technical Field

The utility model belongs to the technical field of the sprocket bearing seals, especially, sprocket bearing's sealing member anti loosening structure.

Background

A sprocket is a type of pulley coupled to a chain. Conventional sprocket bearings are typically sealed with a simple seal or dust cap. The bearing has special working condition, the temperature difference between the inner ring and the outer ring is large in the working state, and the impact load and the vibration of the chain are borne simultaneously. At present, the main failure reason of the sprocket bearing is that a sealing element is easy to axially separate, so that lubricating liquid in the bearing is lost, the lubrication fails, foreign matters invade the inside of the bearing, the bearing is damaged in advance, and the service life is short.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a provide effective sealing when can bear chain impact load, both prevented that the sealing member axial from outwards deviating from, prevent again that the sealing member from inwards sliding and interfering roller pivoted sprocket bearing's sealing member anti loosening structure.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a sprocket bearing's sealing member anti loosening structure, includes outer lane, inner circle and sets up the sealing member between outer lane and inner circle, the outside one end of sealing member axial is provided with the retaining ring that prevents the outside slip of sealing member axial, outer lane inner wall radial extension is provided with the lug that prevents the inside slip of sealing member axial.

By adopting the scheme, the retainer ring is arranged at the outward axial end of the sealing element to prevent the sealing element from sliding outwards, so that the lubricating liquid in the bearing is not easy to leak, a long-time lubricating effect is provided, the internal abrasion of the bearing is reduced, the service life of the bearing is prolonged, the convex block for preventing the sealing element from sliding inwards in the axial direction is arranged on the inner wall of the outer ring, the sealing element can be prevented from sliding inwards, the sealing element is prevented from interfering the work of the internal roller, and the working performance of the bearing is further optimized. The utility model discloses both prevent that the sealing member axial from outwards deviating from, prevent again that the sealing member from inwards sliding and interfering the roller and rotate.

As the utility model discloses a further setting, the retaining ring with the connection can be dismantled in the outer lane formation, at least, be provided with one on the retaining ring and be used for the axial to insert the axle of inserting of outer lane lateral wall, insert through connecting axle fixed connection between axle and the retaining ring, the position that the outer lane lateral wall corresponds the connecting axle can be dismantled and be provided with and be used for the spacing a pair of fixture block of connecting axle axial.

Adopt above-mentioned scheme, insert the outer lane lateral wall through inserting the axle to insert and can make and form fixed connection between retaining ring and the outer lane through connecting axle fixed connection between axle and the retaining ring, outer lane and retaining ring synchronous rotation promptly, such setting up can make the retaining ring can not influence the normal operation of bearing, set up a pair of fixture block at the outer lane lateral wall in addition and be used for connecting axle axial spacing can prevent that the retaining ring axial from deviating from, make that the retaining ring can be stable form spacingly to the sealing member, and simple structure, simple to operate.

As the utility model discloses a further setting, the sealing member includes the skeleton and adheres to the rubber seal on the skeleton, the cross-section of skeleton is "7" style of calligraphy, the vertical end axial of rubber seal correspondence "7" style of calligraphy skeleton is outwards extended to be provided with to support and establishes the seal lip at the inner circle outer wall, the transverse end that rubber seal corresponds "7" style of calligraphy skeleton is formed with the butt face with outer lane inner wall butt, be provided with a plurality of anti-skidding teeth on the butt face.

By adopting the scheme, the anti-slip teeth are arranged on the abutting surfaces of the rubber sealing ring and the inner wall of the outer ring in an abutting mode, the anti-slip teeth can increase friction between the abutting surfaces and the inner wall of the outer ring, and axial sliding of the sealing element can be prevented to a certain extent.

As a further setting of the utility model, the symmetry is provided with two insertion shafts that are used for the axial to insert the outer lane lateral wall on the fender circle, outer lane lateral wall symmetry is provided with a pair of embedded groove, the embedded groove inner wall is provided with and is used for insertion shaft male jack, the insertion shaft with the connecting axle is all arranged in the embedded groove, a pair of fixture block can be dismantled the setting and be in the embedded groove inner wall.

By adopting the scheme, the two inserting shafts are symmetrically arranged, so that the retainer ring and the outer ring are more synchronous, the bearing runs more stably, the pair of embedded grooves are formed in the side wall of the outer ring, the inserting shafts, the connecting shafts and the pair of clamping blocks are arranged in the embedded grooves, the bearing structure is more reasonable and compact, and the size is reduced.

As the utility model discloses a further setting, a pair of fixture block symmetry sets up in the both sides of connecting axle and is formed with the spacing groove that is used for the connecting axle axial with the outer lane lateral wall, the fixture block passes through the screw can dismantle the setting in the embedded groove, the tip of fixture block is provided with the latch that prevents that the connecting axle axial from deviating from, be provided with the direction inclined plane that the connecting axle axial of being convenient for slided into the spacing groove on the latch.

By adopting the above scheme, the connecting axle slides into the spacing inslot when the jack is inserted to the axial to the inserted shaft of being convenient for, has improved the installation effectiveness, and the setting can conveniently be dismantled the retaining ring in the embedded groove through the screw can be dismantled to the latch in addition, only needs to dismantle the latch with earlier and just can carry out the axial with the retaining ring and deviate from the operation, is convenient for maintain the bearing.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic exterior view of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of an outer appearance of a retainer ring according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

FIG. 6 is an enlarged view of portion C of FIG. 4;

fig. 7 is an external view of the sealing member according to the embodiment of the present invention.

Detailed Description

The utility model discloses a concrete embodiment is shown in figures 1-7, a sprocket bearing's sealing member locking structure, including outer lane 1, inner circle 2, roller 3 and setting up sealing member 4 between outer lane 1 and inner circle 2, the outside one end of sealing member 4 axial is provided with prevents the retaining ring 5 that sealing member 4 axial outwards slided, 1 inner wall radial extension in outer lane is provided with prevents the lug 11 that sealing member 4 axial inwards slided.

The utility model discloses a quick-witted outer lane, including retaining ring 5, retaining ring 5 and connecting axle 7, the connection can be dismantled in the formation of outer lane 1, be provided with one at least on the retaining ring 5 and be used for the axial to insert 1 lateral wall of outer lane and insert axle 6, insert between axle 6 and the retaining ring 5 through connecting axle 7 fixed connection, retaining ring 5, insert axle 6 and connecting axle 7 integrated into one piece setting, the position that the corresponding connecting axle 7 of 1 lateral wall of outer lane can be dismantled and be provided with a pair of fixture block 12 that.

The sealing element 4 comprises a framework 41 and a rubber sealing ring 42 attached to the framework 41, the cross section of the framework 41 is in a 7 shape, the rubber sealing ring 42 extends axially outwards corresponding to the vertical end of the 7-shaped framework 41 and is provided with a sealing lip 421 abutted to the outer wall of the inner ring 2, the transverse end of the rubber sealing ring 42 corresponding to the 7-shaped framework 41 is provided with an abutting surface 422 abutted to the inner wall of the outer ring 1, and a plurality of anti-slip teeth 4221 are arranged on the abutting surface 422.

The symmetry is provided with two insertion shafts 6 that are used for the axial to insert 1 lateral wall in outer lane on the

retaining ring

5, 1 lateral wall symmetry in outer lane is provided with a pair of embedded groove 13, embedded groove 13 inner wall is provided with and is used for insertion shaft 6 male jack 131, insertion shaft 6 with connecting axle 7 all arranges in embedded groove 13, a pair of fixture block 12 can be dismantled the setting and be in embedded groove 13 inner wall.

The pair of clamping blocks 12 are symmetrically arranged on two sides of the connecting shaft 7 and form a limiting groove used for axial limiting of the connecting shaft 7 with the side wall of the outer ring 1, the clamping blocks 12 are detachably arranged in the embedded grooves 13 through screws 8, a clamping tooth 121 used for preventing the connecting shaft 7 from axially falling off is arranged at the end portion of each clamping block 12, and a guide inclined plane 1211 used for facilitating the connecting shaft 7 to axially slide into the limiting groove is arranged on each clamping tooth 121.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a sprocket bearing's sealing member anti loosening structure, includes outer lane, inner circle and sets up the sealing member between outer lane and inner circle, its characterized in that: the outer ring is characterized in that a retainer ring for preventing the sealing element from axially sliding outwards is arranged at one end, which is axially outward, of the sealing element, and a convex block for preventing the sealing element from axially sliding inwards is arranged on the inner wall of the outer ring in a radially extending manner.

2. The sprocket bearing seal looseness prevention structure of claim 1, wherein: the retaining ring with the connection can be dismantled in the outer lane formation, at least, be provided with one on the retaining ring and be used for the axial to insert the axle of inserting of outer lane lateral wall, insert through connecting axle fixed connection between axle and the retaining ring, the position that the outer lane lateral wall corresponds the connecting axle can be dismantled and be provided with a pair of fixture block that is used for connecting axle axial spacing.

3. The sprocket bearing seal looseness prevention structure of claim 2, wherein: the sealing member includes the skeleton and adheres to the rubber seal on the skeleton, the cross-section of skeleton is "7" style of calligraphy, the vertical end axial of rubber seal correspondence "7" style of calligraphy skeleton is outwards extended and is provided with the seal lip of establishing at the inner circle outer wall of support, the horizontal end that rubber seal corresponds "7" style of calligraphy skeleton is formed with the butt face with outer lane inner wall butt, be provided with a plurality of anti-skidding teeth on the butt face.

4. The sprocket bearing seal looseness prevention structure of claim 2, wherein: the symmetry is provided with two insertion shafts that are used for the axial to insert the outer lane lateral wall on the fender, outer lane lateral wall symmetry is provided with a pair of embedded groove, the embedded groove inner wall is provided with and is used for insertion shaft male jack, the insertion shaft with the connecting axle is all arranged in the embedded groove, the setting can be dismantled to a pair of fixture block is in the embedded groove inner wall.

5. The sprocket bearing seal looseness prevention structure of claim 4, wherein: the pair of clamping blocks are symmetrically arranged on two sides of the connecting shaft and are formed with limiting grooves used for axial limiting of the connecting shaft with the outer ring side wall, the clamping blocks can be detachably arranged in the embedded grooves through screws, clamping teeth used for preventing the connecting shaft from axially deviating are arranged at the end portions of the clamping blocks, and guide inclined planes used for enabling the connecting shaft to axially slide into the limiting grooves are arranged on the clamping teeth.