CN219062237U

CN219062237U - High-sealing durable automobile hub bearing

Info

Publication number: CN219062237U
Application number: CN202222545765.6U
Authority: CN
Inventors: 朱江锋
Original assignee: Hangzhou Minggang Machinery Co ltd
Current assignee: Zhejiang Minggang Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-23
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of bearings and discloses a high-sealing durable automobile hub bearing which comprises an inner ring, an outer ring, balls and a retainer, wherein two rows of rolling paths which are bilaterally symmetrical are correspondingly arranged on the outer side wall of the inner ring and the inner side wall of the outer ring and are used for rolling and embedding the balls, the balls are embedded in corresponding holes of the retainer, a built-in sealing ring is fixedly embedded in the middle part of the inner ring of the outer ring, all flange joints are fixed in the middle part of the outer ring of the inner ring, and the flange joints are arranged in an annular array. According to the utility model, the flange joint rotates along with the inner ring when the inner ring rotates, so that the diaphragm ring piece periodically expands and contracts under the rotation action of the flange joint, and lubricating grease (oil) in a cavity between two rows of balls periodically and circularly surges, thereby effectively improving the lubrication condition of the balls.

Description

High-sealing durable automobile hub bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a high-sealing durable automobile hub bearing.

Background

The existing automobile bearing needs to bear radial force and bear partial axial force, so that a double-row roller bearing is often adopted, good lubrication and sealing performance are required to be ensured because the bearing position specificity is difficult to lubricate after installation is completed, the existing bearing can enlarge partial play while bearing axial force, so that the sealing performance is poor, a lubricant is lost, and good lubrication of rollers is difficult to achieve when the lubricant is lost to a certain degree.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to overcome the problems presented above, a high seal durable automotive hub bearing is provided which solves the problems presented above.

The utility model solves the technical problems by adopting the following technical scheme:

the utility model provides a durable automobile wheel hub bearing of high seal, includes inner circle, outer lane, ball, holder, the lateral wall of inner circle and the inside wall of outer lane is equipped with two rows of raceways of bilateral symmetry correspondingly and supplies the ball rolls to inlay in, the ball inlays and is in the corresponding downthehole of holder, the inner circle middle part of outer lane inlays fixedly to be equipped with built-in sealing washer, the outer lane middle part of inner circle is fixed all flange festival just flange festival annular array sets up.

Preferably, the inner ring with the built-in sealing ring is divided into two symmetrical membrane flap sheets, and adjacent wall surfaces of the membrane flap sheets are propped against the outer side wall of the inner ring.

Preferably, the left side wall and the right side wall of the flange joint are propped against the inner side wall of the diaphragm ring, and the flange joint rotates along with the inner ring when the inner ring rotates, so that the diaphragm ring periodically expands and contracts under the rotation action of the flange joint.

Preferably, the built-in sealing ring is composed of two semi-annular split rubber rings, a metal clamping piece is fixedly embedded in the middle of an outer ring of the split rubber rings, and the split rubber rings are embedded and fixed in an inner ring of the outer ring along with the metal clamping piece.

Preferably, the annular array on the membrane flap is fixedly provided with penetrating overflow holes at intervals.

Preferably, the outer side wall of the inner ring is provided with a clamping groove, the anti-theft ring further comprises a clamp formed by two semicircular split hoops, the split hoops are embedded in the clamping groove, the end parts of the split hoops are used for fixing all flat plate lugs, two adjacent flat plate lugs are fastened by screws, and the annular flange section array is fixed on the outer side wall of the split hoops.

The utility model has the advantages and positive effects that: when the inner ring rotates, the flange joint rotates along with the inner ring, so that the diaphragm ring piece periodically expands and contracts under the rotating action of the flange joint, lubricating grease (oil) in a cavity between two rows of balls periodically and circularly surges, the lubrication condition of the balls is effectively improved, and when the inner ring and the outer ring axially move, the viscosity is improved under the cooperation of the built-in sealing ring and the flange joint, the circumferential play of a lubricating object is effectively reduced, and the risk of leakage of the lubricating object from radial play is reduced.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the present utility model in full section;

FIG. 3 is a schematic view of the inner race 14 of the present utility model in full section;

FIG. 4 is a schematic view of the clip 23 of the present utility model;

fig. 5 is a schematic view of the inner race 14 of fig. 2;

FIG. 6 is a schematic view of the A-A fully cut-away configuration of FIG. 5;

fig. 7 is a schematic view of the structure of the built-in seal ring 19 in the present utility model.

The index marks in the drawings are as follows: 12. a rubber ring is split; 13. an overflow aperture; 14. an inner ring; 15. an outer ring; 16. a ball; 17. a retainer; 18. a flange section; 19. a sealing ring is arranged in the inner part; 20. a metal clip; 21. a membrane flap; 22. a clamping groove; 23. a clamp; 24. split hoops; 25. the flat plate is connected with the lug.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:

as shown in fig. 1-7, the high-sealing durable automobile hub bearing comprises an inner ring 14, an outer ring 15, balls 16 and a retainer 17, wherein two rows of raceways which are bilaterally symmetrical are correspondingly arranged on the outer side wall of the inner ring 14 and the inner side wall of the outer ring 15 for the balls 16 to be embedded in a rolling manner, the balls 16 are embedded in corresponding holes of the retainer 17, a built-in sealing ring 19 is fixedly embedded in the middle part of the inner ring of the outer ring 15, all flange joints 18 are fixedly arranged in the middle part of the outer ring of the inner ring 14, and the flange joints 18 are arranged in an annular array.

Preferably, the inner ring of the inner seal ring 19 is divided into two symmetrical membrane flap pieces 21, and adjacent wall surfaces of the membrane flap pieces 21 are abutted against the outer side wall of the inner ring 14.

Preferably, the left and right side walls of the flange section 18 are abutted against the inner side walls of the diaphragm ring piece 21, when the inner ring 14 rotates, the flange section 18 follows the rotation to enable the diaphragm ring piece 21 to periodically expand and contract under the rotation action of the flange section 18, so that grease (oil) in the cavity between the two rows of balls 16 periodically and annularly surge, and the lubrication condition of the balls 16 is effectively improved.

Preferably, the built-in sealing ring 19 is composed of two semi-annular split rubber rings 12, a metal clamping piece 20 is fixedly embedded in the middle of the outer ring of the split rubber rings 12, and the split rubber rings 12 are embedded and fixed in the inner ring of the outer ring 15 along with the metal clamping piece 20.

Preferably, the annular array on the membrane flap 21 is fixedly provided with penetrating overflow holes 13 at intervals, and the structure of the overflow holes 13 enables gaps to be reserved between the flange joint 18 and the attaching wall surface of the membrane flap 21 for storing lubricating grease (oil), so that dislocation caused by siphoning of the flange joint 18 and the attaching wall surface is avoided, and meanwhile friction force is effectively reduced.

Preferably, the outer side wall of the inner ring 14 is provided with a clamping groove 22, and further comprises a clamp 23 formed by two semicircular split hoops 24 split, the split hoops 24 are embedded in the clamping groove 22, the ends of the split hoops 24 fix all the flat plate lugs 25, two adjacent flat plate lugs 25 are fastened by screws, and the annular array of flange sections 18 is fixed on the outer side wall of the split hoops 24.

In particular, when the inner ring 14 rotates, the flange joint 18 follows the rotation to enable the membrane flap 21 to periodically expand and contract under the rotation action of the flange joint 18, so that the grease (oil) in the cavity between the two rows of balls 16 periodically and annularly surges, the lubrication condition of the balls 16 is effectively improved, and when the inner ring 14 and the outer ring 15 axially move, the built-in sealing ring 19 and the flange joint 18 are matched to improve the viscous force, so that the circumferential play of the lubricant is effectively reduced, and the risk of leakage from radial play is reduced.

It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.

Claims

1. The utility model provides a durable automobile wheel hub bearing of high seal, includes inner circle (14), outer lane (15), ball (16), holder (17), its characterized in that: the inner ring is characterized in that two rows of raceways which are bilaterally symmetrical are correspondingly arranged on the outer side wall of the inner ring (14) and the inner side wall of the outer ring (15) for the balls (16) to be embedded in, the balls (16) are embedded in corresponding holes of the retainer (17), a built-in sealing ring (19) is fixedly embedded in the middle part of the inner ring of the outer ring (15), all flange joints (18) are fixedly arranged in the middle part of the outer ring of the inner ring (14), and the flange joints (18) are arranged in an annular array.

2. A high seal durability automotive hub bearing according to claim 1 wherein: the inner ring of the built-in sealing ring (19) is divided into two symmetrical membrane flap pieces (21), and adjacent wall surfaces of the membrane flap pieces (21) are propped against the outer side wall of the inner ring (14).

3. A high seal durability automotive hub bearing according to claim 2 wherein: the left side wall and the right side wall of the flange joint (18) are propped against the inner side wall of the diaphragm ring piece (21), and when the inner ring (14) rotates, the flange joint (18) rotates along with the rotation so that the diaphragm ring piece (21) is periodically expanded and contracted under the rotation action of the flange joint (18).

4. A high seal durability automotive hub bearing according to claim 3 wherein: the built-in sealing ring (19) is composed of two semi-annular split rubber rings (12), a metal clamping piece (20) is fixedly embedded in the middle of the outer ring of the split rubber rings (12), and the split rubber rings (12) are fixedly embedded in the inner ring of the outer ring (15) along with the metal clamping piece (20).

5. The high seal durability automotive hub bearing of claim 4, wherein: annular arrays on the annular flap (21) are fixedly provided with penetrating overflow holes (13) at intervals.

6. The high seal durability automotive hub bearing of claim 5, wherein: the outer side wall of the inner ring (14) is provided with a clamping groove (22), the anti-theft ring further comprises a clamp (23) formed by two semicircular split hoops (24) in a split mode, the split hoops (24) are embedded in the clamping groove (22), all flat plate lugs (25) are fixed at the end parts of the split hoops (24), two adjacent flat plate lugs (25) are fastened through screws, and the annular array of flange sections (18) is fixed on the outer side wall of the split hoops (24).