Integrated bearing assembly of automobile chassis

Abstract

The utility model provides an integrated bearing assembly of an automobile chassis, and belongs to the technical field of automobile accessories. The problem that an existing automobile chassis bearing is poor in bearing capacity is solved. The integrated bearing assembly of the automobile chassis comprises an outer ring, an inner ring, a retainer and a plurality of steel balls, the outer ring is sleeved on the outer side of the inner ring, the retainer is positioned between the outer ring and the inner ring, the steel balls are distributed in the retainer at intervals, an outer raceway is arranged on the inner wall of the outer ring, an inner raceway is arranged on the outer wall of the inner ring, and the steel balls are positioned between the outer raceway and the inner raceway. The cambered surfaces of the outer raceway and the inner raceway are both attached to the spherical surfaces of the steel balls, the outer ring is fixedly connected to the inner wall of a cylindrical shell, the shell is provided with a connecting part, and a sealing structure for sealing the two sides of the steel balls is arranged between the shell and the inner ring. The utility model has the advantages of compact structure, good bearing capacity, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories and relates to an automobile chassis accessory, in particular to an automobile chassis integrated bearing assembly. Background Art

[0002] Automobile chassis bearings include inner rings, outer rings, steel balls and cages. They bear axial and radial loads and play an extremely important role in the stability and service life of the automobile chassis.

[0003] For example, Chinese patent literature discloses a bearing for automobile suspension [application number: 202221854609.1; authorization announcement number: CN21878169U], which includes an inner ring, an outer ring is arranged outside the inner ring, a plurality of rolling bodies are rollingly installed between the outer ring and the inner ring, the rolling bodies are separated by a retaining frame, the thickness of the inner ring is not less than twice the thickness of the outer ring, and a sealing ring installation groove is formed at one end of the inner ring.

[0004] The above-mentioned automobile suspension bearing increases the width and thickness of the inner ring, improves the stability when fixed, but the rolling element and the raceway are in point contact, so the structure is not compact enough, the rigidity is not strong, the load-bearing capacity is poor, the sealing is poor, and the service life is not long. Summary of the invention

[0005] The utility model aims to solve the above problems existing in the prior art and provides an integrated bearing assembly for an automobile chassis with compact structure, strong rigidity, good load-bearing capacity, good sealing and long service life.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an automobile chassis integrated bearing assembly, comprising an outer ring, an inner ring, a retaining frame and a plurality of steel balls, the outer ring is sleeved on the outside of the inner ring, the retaining frame is located between the outer ring and the inner ring, the steel balls are distributed in the retaining frame at intervals, the inner wall of the outer ring has an outer raceway, the outer wall of the inner ring has an inner raceway, the steel balls are located between the outer raceway and the inner raceway, and it is characterized in that, in terms of radial cross-section, the arc surfaces of both the outer raceway and the inner raceway are in contact with the spherical surface of the steel balls, the outer ring is fixedly connected to the inner wall of a cylindrical shell, the shell has a connecting portion, and a sealing structure is provided between the shell and the inner ring to seal both sides of the steel balls.

[0007] In the above-mentioned automobile chassis integrated bearing assembly, the inner wall of the shell has a circle of radially inwardly convex shoulder, the inner end of the outer ring abuts against the shoulder, the shell is riveted with a rivet ring for the outer end of the outer ring to abut, and the outer wall of the outer ring fits against the inner wall of the shell.

[0008] In the above-mentioned automobile chassis integrated bearing assembly, the outer wall of the inner ring has a circle of concave annular groove, the groove width of the annular groove is greater than the groove bottom width so that the groove walls on both sides are inclined, and the inner raceway is located in the middle of the annular groove.

[0009] In the above-mentioned automobile chassis integrated bearing assembly, the connecting portion is a circle of radially outwardly turned flange at the inner end of the housing, and the flange has a plurality of connecting holes.

[0010] As another example, in the above-mentioned automobile chassis integrated bearing assembly, the connection part is a plurality of radially protruding connection blocks provided at the inner end of the housing, each of which has a connection hole. The arrangement of the connection blocks and the connection holes facilitates the connection of the housing.

[0011] In the above-mentioned automobile chassis integrated bearing assembly, the sealing structure includes sealing ring 1 and sealing ring 2. The sealing ring 1 is embedded in the inner end of the shell, and has a sealing lip 1 that is inclined toward the inner end side of the inner ring and sealed to the outer wall of the inner ring. The sealing ring 2 is embedded in the inner wall of the outer end of the shell, and has a sealing lip 2 that is inclined toward the outer end side of the inner ring and sealed to the outer wall of the inner ring.

[0012] As another case, in the above-mentioned automobile chassis integrated bearing assembly, the sealing structure includes oil seal 1 and oil seal 2, the oil seal 1 is embedded in the outer wall of the inner end of the inner ring and the oil seal 1 seals against the inner wall of the inner end of the outer ring, and the oil seal 2 is embedded in the outer wall of the outer end of the inner ring and the oil seal 2 seals against the inner wall of the outer end of the outer ring. The sealing performance is ensured by the oil seal 1 and the oil seal 2, and the service life is extended.

[0013] Compared with the prior art, the automobile chassis integrated bearing assembly has a compact structure, strong rigidity, good load-bearing capacity, good sealing performance and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural sectional view of the integrated bearing assembly of the automobile chassis.

[0015] Figure 2 yes Figure 1 Enlarged view of the structure of part A in the middle circle.

[0016] In the figure, 1. outer ring; 2. inner ring; 3. retaining frame; 4. steel ball; 5. outer raceway; 6. inner raceway; 7. housing; 8. shoulder; 9. riveted ring; 10. annular groove; 11. flange; 12. connecting hole; 13. sealing ring 1; 14. sealing ring 2; 15. sealing lip 1; 16. sealing lip 2. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1 and Figure 2 As shown, the automobile chassis integrated bearing assembly includes an outer ring 1, an inner ring 2, a retainer 3 and sixteen steel balls 4. The outer ring 1 is sleeved on the outer side of the inner ring 2, the retainer 3 is located between the outer ring 1 and the inner ring 2, and the steel balls 4 are distributed in the retainer 3 at intervals. The inner wall of the outer ring 1 has an outer raceway 5, the outer wall of the inner ring 2 has an inner raceway 6, and the steel balls 4 are located between the outer raceway 5 and the inner raceway 6. In terms of radial cross-section, the arc surfaces of both the outer raceway 5 and the inner raceway 6 are in contact with the spherical surface of the steel balls 4. The outer ring 1 is fixedly connected to the inner wall of a cylindrical shell 7. The shell 7 has a connecting portion, and a sealing structure is provided between the shell 7 and the inner ring 2 to seal both sides of the steel balls 4.

[0019] The automobile chassis integrated bearing assembly integrates the housing 7, and the overall structure is compact. The contact surfaces of the outer raceway 5 and the inner raceway 6 with the steel ball 4 are in full contact, and the overall rigidity and load-bearing capacity are good. In addition, the sealing structure ensures the sealing, and avoids the internal lubricating grease between the outer ring 1 and the inner ring 2 from overflowing, and also avoids foreign matter from entering between the outer ring 1 and the inner ring 2, thereby avoiding wear and extending the service life.

[0020] In further detail, the inner wall of the housing 7 has a circle of radially inwardly convex shoulder 8, the inner end of the outer ring 1 abuts against the shoulder 8, the housing 7 is riveted with a rivet ring 9 for the outer end of the outer ring 1 to abut, and the outer wall of the outer ring 1 fits against the inner wall of the housing 7. In this way, the outer ring 1 and the housing 7 are conveniently and firmly connected, and the load-bearing capacity is good.

[0021] The outer wall of the inner ring 2 has a circle of concave annular grooves 10, the notch width of the annular groove 10 is greater than the width of its bottom so that the groove walls on both sides are inclined, and the inner raceway 6 is located in the middle of the annular groove 10. The annular groove 10 plays a role of giving way and guiding, so that the steel balls 4 can be smoothly loaded into the inner raceway 6 and the outer raceway 5, improving the assembly efficiency. The connecting part is a circle of radially turned-out flanges 11 at the inner end of the housing 7, and the flanges 11 have three connecting holes 12. The flanges 11 and the connecting holes 12 are arranged to facilitate the connection of the housing 7.

[0022] In this embodiment, the sealing structure includes a sealing ring 13 and a sealing ring 14. The sealing ring 13 is embedded in the inner end of the shell 7. The sealing ring 13 has a sealing lip 15 that is inclined toward the inner end of the inner ring 2 and sealed to the outer wall of the inner ring 2. The sealing ring 14 is embedded in the inner wall of the outer end of the shell 7. The sealing ring 14 has a sealing lip 16 that is inclined toward the outer end of the inner ring 2 and sealed to the outer wall of the inner ring 2.

[0023] Sealing ring 13 and sealing ring 2 14 ensure sealing, prevent the lubricating grease between the outer ring 1 and the inner ring 2 from overflowing, and prevent foreign matter from entering between the outer ring 1 and the inner ring 2, thereby extending the service life; in this embodiment, sealing ring 13 is embedded in the shoulder 8 and the inner end of sealing ring 13 is abutted by the outer ring 1, and sealing ring 2 14 is embedded in the inner wall of the outer end of the housing 7, and the inner side of sealing ring 2 14 is abutted by the rivet ring 9.

[0024] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An automobile chassis integrated bearing assembly, comprising an outer ring (1), an inner ring (2), a retaining frame (3) and a plurality of steel balls (4), wherein the outer ring (1) is sleeved on the outer side of the inner ring (2), the retaining frame (3) is located between the outer ring (1) and the inner ring (2), the steel balls (4) are distributed in the retaining frame (3) at intervals, the inner wall of the outer ring (1) has an outer raceway (5), the outer wall of the inner ring (2) has an inner raceway (6), the steel balls (4) are located between the outer raceway (5) and the inner raceway (6), and characterized in that: In terms of radial cross-section, the arc surfaces of the outer raceway (5) and the inner raceway (6) are both in contact with the spherical surface of the steel ball (4), the outer ring (1) is fixedly connected to the inner wall of a cylindrical shell (7), the shell (7) has a connecting portion, and a sealing structure is provided between the shell (7) and the inner ring (2) to seal both sides of the steel ball (4).

2. The automobile chassis integrated bearing assembly according to claim 1, characterized in that: The inner wall of the shell (7) has a circle of radially inwardly convex shoulder (8), the inner end of the outer ring (1) abuts against the shoulder (8), the shell (7) is riveted with a rivet ring (9) for the outer end of the outer ring (1) to abut, and the outer wall of the outer ring (1) fits against the inner wall of the shell (7).

3. The automobile chassis integrated bearing assembly according to claim 2, characterized in that: The outer wall of the inner ring (2) has a circle of concave annular grooves (10), the width of the annular groove (10) is greater than the width of its bottom so that the groove walls on both sides are inclined, and the inner raceway (6) is located in the middle of the annular groove (10).

4. The automobile chassis integrated bearing assembly according to claim 1, characterized in that: The connecting portion is a circle of radially outwardly turned flange (11) at the inner end of the shell (7), and the flange (11) has a plurality of connecting holes (12).

5. The automobile chassis integrated bearing assembly according to claim 1, characterized in that: The connecting portion is a plurality of radially protruding connecting blocks provided at the inner end of the shell (7), and each connecting block has a connecting hole (12).

6. The automobile chassis integrated bearing assembly according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The sealing structure comprises a sealing ring 1 (13) and a sealing ring 2 (14), wherein the sealing ring 1 (13) is embedded in the inner end of the housing (7), and the sealing ring 1 (13) has a sealing lip 1 (15) which is inclined toward the inner end side of the inner ring (2) and is sealed to the outer wall of the inner ring (2), and the sealing ring 2 (14) is embedded in the inner wall of the outer end of the housing (7), and the sealing ring 2 (14) has a sealing lip 2 (16) which is inclined toward the outer end side of the inner ring (2) and is sealed to the outer wall of the inner ring (2).

7. The automobile chassis integrated bearing assembly according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The sealing structure comprises an oil seal 1 and an oil seal 2, wherein the oil seal 1 is embedded in the outer wall of the inner end of the inner ring (2) and the oil seal 1 seals against the inner wall of the inner end of the outer ring (1), and the oil seal 2 is embedded in the outer wall of the outer end of the inner ring (2) and the oil seal 2 seals against the inner wall of the outer end of the outer ring (1).

Images