CN215634485U

CN215634485U - Automobile hub bearing assembly with multiple sealing structures

Info

Publication number: CN215634485U
Application number: CN202122113196.3U
Authority: CN
Inventors: 余杏海
Original assignee: HAINING AUTOMANN PARTS CO Ltd
Current assignee: HAINING AUTOMANN PARTS CO Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-25
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses an automobile hub bearing assembly with a multiple sealing structure, which comprises an outer ring, an inner ring A, an inner ring B, a mandrel, a retainer, a roller, a dust cover, a sealing ring component I, a sealing ring component II and a bolt, wherein the outer ring A is arranged on the inner ring B; the sealing ring component I comprises a sealing ring I, a sealing ring II, a sealing ring III and a sealing ring IV, wherein the sealing ring I is pressed on an inner ring A outer diameter a and forms sealing with the sealing ring II, the sealing ring II is pressed on an outer ring outer diameter and forms sealing with the sealing ring I, the inner ring A outer diameter a and the sealing ring III, the sealing ring III is pressed on an inner ring A outer diameter b and forms sealing with the sealing ring II and the sealing ring IV, and the sealing ring IV is pressed on an outer ring inner diameter and forms sealing with the sealing ring III. The sealing ring assembly on the inner side of the truck is designed into a multiple sealing structure, so that the sealing ring assembly has a better sealing effect when being matched with the inner ring and the outer ring, foreign matters such as external dust, slurry and the like are effectively prevented from invading from the matching part of the sealing ring assembly and the outer ring, and the service life of the bearing is prolonged.

Description

Automobile hub bearing assembly with multiple sealing structures

Technical Field

The utility model relates to an automobile hub bearing, in particular to an automobile hub bearing assembly with a multiple sealing structure.

Background

At present, a double-row angular contact ball bearing is selected as a hub bearing assembly for a car, a combined sealing ring is pressed between an outer ring and an inner ring in a traditional sealing ring structure, the sealing performance of the structure is low, particularly, when the sealing ring on the inner side of a car is operated under a very complicated road condition, in addition, the sealing ring is poorly designed and manufactured or is damaged in the using process, foreign matters such as external muddy water, dust and the like are easy to invade the inside of the bearing due to poor sealing of the bearing, the stress concentration is generated by damaging the lubrication between a bearing raceway and the surface of a roller, and the raceway or the roller is finally peeled off due to continuous stress circulation, so that the early failure of the bearing is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an automobile hub bearing assembly with a multiple sealing structure, wherein a sealing ring assembly on the inner side of a vehicle is designed into the multiple sealing structure, so that the sealing ring assembly has a better sealing effect when being matched with an inner ring and an outer ring, foreign matters such as external dust and slurry are effectively prevented from invading from the matching position of the outer ring, and the service life of the bearing is prolonged.

The technical scheme adopted by the utility model for solving the technical problem is as follows: an automobile hub bearing assembly with a multiple sealing structure comprises an outer ring, an inner ring A, an inner ring B, a mandrel, a retainer, a roller, a dust cover, a sealing ring component I, a sealing ring component II and a bolt; the sealing ring component I comprises a sealing ring I, a sealing ring II, a sealing ring III and a sealing ring IV, wherein the sealing ring I is pressed on an inner ring A outer diameter a and forms sealing with the sealing ring II, the sealing ring II is pressed on an outer ring outer diameter and forms sealing with the sealing ring I, the inner ring A outer diameter a and the sealing ring III, the sealing ring III is pressed on an inner ring A outer diameter b and forms sealing with the sealing ring II and the sealing ring IV, and the sealing ring IV is pressed on an outer ring inner diameter and forms sealing with the sealing ring III.

Preferably, the rollers comprise 46 rollers, which are loaded into two cages on average.

The bearing provided by the utility model completely meets the requirements in use, is integrally designed in an optimized manner, adopts a multiple-sealing structure design, and is subjected to a slurry and brine splashing test, so that almost no muddy water enters the bearing, the service life of the bearing is greatly prolonged, and the bearing provided by the utility model has the characteristics of compact structure, convenience in installation, excellent performance and the like.

The utility model has the beneficial effects that the sealing ring assembly on the inner side of the truck is designed into a multiple sealing structure, the four sealing rings are mutually matched and installed, the design is ingenious, the sealing function is better realized when the sealing ring assembly is matched with the inner ring and the outer ring, foreign matters such as external dust, slurry and the like are effectively prevented from invading from the matching part of the sealing ring assembly and the outer ring, the early failure is effectively prevented, and the service life of the bearing is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a top view of the embodiment of FIG. 1.

FIG. 3 is an enlarged view of FIG. 1.

Fig. 4 is a schematic structural diagram of an inner ring a according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a seal ring i according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a seal ring ii according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a seal ring iii according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a seal ring iv according to an embodiment of the present invention.

Wherein, 1, an outer ring; 2. an inner ring A; 3. a mandrel; 4. a sealing ring I; 5. a sealing ring II; 6. a sealing ring III; 7. a sealing ring IV; 8. a holder; 9. a roller; 10. a dust cover; 11. a seal ring component II; 12. an inner ring B; 13. and (4) bolts.

The utility model is further described below with reference to the accompanying drawings.

Detailed Description

Shown in the attached drawings, the automobile hub bearing assembly with the multiple sealing structures comprises an outer ring 1, an inner ring A2, an inner ring B12, a mandrel 3, a retainer 8, a roller 9, a dust cover 10, a sealing ring component I, a sealing ring component II 11 and a bolt 13; sealing washer subassembly I includes sealing washer I4, sealing washer II 5, sealing washer III 6 and sealing washer IV 7, sealing washer I4 is pressed on inner circle A2 external diameter a, forms sealedly with sealing washer II 5, sealing washer II 5 is pressed on 1 external diameter in outer lane, forms sealedly with sealing washer I4, inner circle A2 external diameter a and sealing washer III 6, sealing washer III 6 is pressed on inner circle A2 external diameter b, forms sealedly with sealing washer II 5 and sealing washer IV 7, sealing washer IV 7 is pressed on 1 internal diameter in outer lane, forms sealedly with sealing washer III 6.

The outer ring 1 is provided with two channels which are turned on parts and used as a base body for bearing and rotating the roller through local induction quenching, grinding and superfinishing; the inner ring A2, a component which is combined with the outer ring and the roller to bear and rotate; the mandrel 3 is a complete bearing rotating part synthesized by the outer diameter, the inner ring and the outer ring roller and is fixed by the interference fit of the outer diameter and the inner diameter of the mandrel. The sealing ring component I comprises four sealing rings, namely a sealing ring I4, a sealing ring II 5, a sealing ring III 6 and a sealing ring IV 7, and a multiple sealing structure is formed, so that the sealing effect reaches the optimal state; a cage 8 for guiding the roller to rotate; a roller 9, carrying and rotating; serial number 11, dust cover 10, play a dustproof role; the sealing ring component II 11 is matched with the inner ring and the outer ring to achieve a sealing effect; the inner ring B12 is combined with the outer ring and the roller to bear and rotate; and bolts 13 for connecting the wheels.

When the dustproof cover is installed, 6 bolts 13 are pressed into the mandrel 3 through a hydraulic machine, 46 rollers 9 are averagely installed into two retainers 8, an inner ring A2 and an inner ring B12 are respectively pressed into the retainers 8, grease is respectively injected, the inner rings are respectively installed into two raceways of the outer ring 1, a sealing ring assembly II 11 is pressed into the outer ring 1 through the hydraulic machine, the dustproof cover 10 is pressed into the outer ring 1, an inner ring A2 and an inner ring B12 are pressed on the mandrel 3, a sealing ring IV 7, a sealing ring III 6, a sealing ring II 5 and a sealing ring I4 are respectively pressed into the inner ring A2 and the outer ring 1 through the hydraulic machine, and a flanging at the end part of the mandrel 3 is pressed on the inner ring A2 through a flanging machine, so that the installation of the dustproof cover is completed.

Claims

1. An automobile hub bearing assembly with a multiple sealing structure comprises an outer ring (1), an inner ring A (2), an inner ring B (12), a mandrel (3), a retainer (8), a roller (9), a dust cover (10), a sealing ring component I, a sealing ring component II (11) and a bolt (13); the method is characterized in that: sealing washer subassembly I includes sealing washer I (4), sealing washer II (5), sealing washer III (6) and sealing washer IV (7), sealing washer I (4) are pressed on inner circle A (2) external diameter a, form sealedly with sealing washer II (5), sealing washer II (5) are pressed on outer lane (1) external diameter, form sealedly with sealing washer I (4), inner circle A (2) external diameter a and sealing washer III (6), sealing washer III (6) are pressed on inner circle A (2) external diameter b, form sealedly with sealing washer II (5) and sealing washer IV (7), sealing washer IV (7) are pressed on outer lane (1) internal diameter, form sealedly with sealing washer III (6).

2. The multiple seal structure automobile hub bearing assembly of claim 1, wherein: the rollers (9) comprise 46 rollers and are evenly arranged in the two cages (8).