CN112576618A

CN112576618A - Wheel hub bearing unit with three rows of rolling bodies

Info

Publication number: CN112576618A
Application number: CN202011548003.0A
Authority: CN
Inventors: 李凯; 汪峰
Original assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Current assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-03-30

Abstract

The invention discloses a hub bearing unit with three rows of rolling bodies, which mainly comprises a flange and the like, wherein an inner ring is arranged at one end of the flange in an outer diameter fit manner, a raceway A and a raceway B are arranged on the inner ring, a row of raceways C are simultaneously arranged on the flange, the rolling bodies A, the rolling bodies B and the rolling bodies C are respectively arranged in the raceways A, the raceways B and the raceways C, an outer ring is arranged outside the rolling bodies A, the rolling bodies B and the rolling bodies C in a fit manner, the rolling bodies A and the rolling bodies B are respectively and uniformly separated and kept at the positions by the retainer A and the retainer A, the position of the retainer C is kept by the retainer, the tail end of the inner ring is connected with a gear ring. According to the invention, the rolling bodies are added in the middle of the conventional automobile hub unit, so that the hub unit has three rows of rolling bodies, the bearing capacity of the hub unit can be greatly improved under the condition of not changing the boundary size, and the bearing capacity is improved by 1/3.

Description

Wheel hub bearing unit with three rows of rolling bodies

Technical Field

The invention relates to the field of hub bearings, in particular to a hub bearing unit with three rows of rolling bodies.

Background

A hub bearing is an automotive component that carries weight and provides precise guidance for the rotation of the hub. The automobile hub bearing unit in the prior art usually has only one row of roller paths on the inner ring to guide the rolling bodies, so that the bearing unit has only two rows of rolling bodies totally, the bearing capacity of the bearing unit is difficult to be greatly improved under the condition that the boundary dimension is not changed, the application range of a product is greatly limited, and the market competitiveness is reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a hub bearing unit with three rows of rolling bodies.

The purpose of the invention is achieved by the following technical scheme: the hub bearing unit with three rows of rolling bodies mainly comprises a sensor end cover, a gear ring, an inner ring, a rolling body A, a retainer A, a rolling body B, a retainer C and a rolling body C, the outer ring, the outer sealing ring and the flange are arranged, the outer diameter of one end of the flange is matched with the inner ring, the inner ring is provided with a roller path A and a roller path B, the flange is simultaneously provided with a row of roller paths C, rolling bodies A, B and C are respectively arranged in the roller paths A, B and C, the outer sides of the rolling bodies A, B and C are matched with the outer ring, the rolling bodies A and B are respectively and uniformly separated and kept at positions by the retainer A and the retainer A, the retainer C is kept at the positions by the retainer, the tail end of the inner ring is connected with a gear ring, the tail end of the outer ring is connected with a sensor end cover, the outer.

Specific forms of the rolling elements a, B and C include a general circular roller and a tapered roller.

The invention has the beneficial effects that: according to the invention, the rolling bodies are added in the middle of the conventional automobile hub unit, so that the hub unit has three rows of rolling bodies, the bearing capacity of the hub unit can be greatly improved under the condition of not changing the boundary size, and the bearing capacity is improved by 1/3; the actual performance of the product is greatly improved, the adaptive scene of the product is widened, and the actual competitiveness is improved.

Drawings

Fig. 1 is a schematic structural diagram of the prior art.

Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.

Description of reference numerals: the sensor comprises a sensor end cover 1, a gear ring 2, an inner ring 3, a rolling body A4, a retainer A5, a rolling body B6, a retainer B7, a retainer C8, a rolling body C9, an outer ring 10, an outer sealing ring 11, a flange 12 and a spline 13.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

example 1: as shown in FIG. 2, the hub bearing unit with three rows of rolling elements mainly comprises a sensor end cover 1, a gear ring 2, an inner ring 3, a rolling element A4, a retainer A5, a rolling element B6, a retainer B7, a retainer C8, a rolling element C9, an outer ring 10, an outer sealing ring 11 and a flange 12, wherein the inner ring 3 is installed at one end of the flange 12 in an outer diameter matching mode, a raceway A and a raceway B are arranged on the inner ring 3, a row of raceways C are simultaneously arranged on the flange 12, the rolling elements A4, B6 and C9 are respectively installed in the raceway A, the raceway B and the raceway C, the outer ring 10 is installed outside the rolling element A4, the rolling element B6 and the rolling element C9 in a matching mode, the retainer A5 and the retainer A5 respectively uniformly separate and maintain the positions of the rolling elements A4 and the rolling element B6 so as to be uniformly stressed, the retainer C8 is maintained by the retainer 8, an outer sealing ring 11 is arranged between the outer ring 10 and the flange 12, the sensor end cover 1 and the outer sealing ring 11 respectively play an inner and outer sealing role, and the gear ring 2 provides ABS signals. The invention adds a row of raceways B on the inner ring 3 for guiding the rolling elements B6, and simultaneously, a third row of rolling elements C9 and a retainer C8 are loaded together in front of the outer ring 10 and the flange 12, so that the bearing capacity is improved by 1/3. The specific forms of the rolling element A4, the rolling element B6 and the rolling element C9 comprise a common round roller and a tapered roller, and the tapered roller is adopted to form a novel driving or non-driving three-row tapered roller bearing unit.

Example 2: as shown in fig. 3, on the basis of embodiment 1, only the raceway a is arranged on the inner ring 3 instead, and the raceway B and the raceway C are arranged on the flange 12 instead, so that three rows of raceways are formed.

Example 3: as shown in fig. 4, the driving wheel has a structure similar to that of embodiment 1, and a spline 13 is added inside a flange 12 to perform a driving function.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.

Claims

1. A hub bearing unit having three rows of rolling bodies, characterized in that: the sensor mainly comprises a sensor end cover (1), a gear ring (2), an inner ring (3), a rolling body A (4), a retainer A (5), a rolling body B (6), a retainer B (7), a retainer C (8), a rolling body C (9), an outer ring (10), an outer sealing ring (11) and a flange (12), wherein the inner ring (3) is installed at one end of the flange (12) in an outer diameter matching mode, a roller path A and a roller path B are arranged on the inner ring (3), a row of roller paths C are simultaneously arranged on the flange (12), the rolling body A (4), the rolling body B (6) and the rolling body C (9) are respectively installed in the roller path A, the roller path B and the roller path C, the outer ring (10) is installed outside the rolling body A (4), the rolling body B (6) and the rolling body C (9) in a matching mode, the retainer A (5), the position of the retainer C (8) is kept by the retainer (8), the tail end of the inner ring (3) is connected with the gear ring (2), the tail end of the outer ring (10) is connected with the sensor end cover (1), the outer sealing ring (11) is installed between the outer ring (10) and the flange (12), and the gear ring (2) provides ABS signals.

2. A hub-bearing unit with three rows of rolling bodies according to claim 1, characterized in that: specific forms of the rolling elements a (4), B (6) and C (9) include a general circular roller and a tapered roller.