CN217784021U

CN217784021U - High-bearing hub bearing structure

Info

Publication number: CN217784021U
Application number: CN202222077801.0U
Authority: CN
Inventors: 童学根; 刘家林; 刘旭东; 谢辉
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-11
Anticipated expiration: 2032-08-05

Abstract

The utility model discloses a high-bearing hub bearing structure, including flange outer lane, the split type inner circle of setting in the flange outer lane, set up the rolling element between flange outer lane and inner circle, the face that flange outer lane is relative with the inner circle is equipped with a channel and a raceway respectively along the bearing radial direction, the rolling element is including setting up steel ball in the channel, setting up the roller in the raceway, the steel ball is four-point contact with flange outer lane, inner circle, still be equipped with the holder in the channel, per two adjacent rollers are 90 mutually perpendicular cross arrangement in the raceway, be equipped with the interval between the roller and keep the ware, the roller is line contact with flange outer lane, inner circle. According to the technical scheme, a row of four-point contact steel balls and a row of crossed rollers are arranged in the bearing, so that the bearing capacity and the moment rigidity of the bearing are improved, the integral friction moment of the bearing is reduced, and the energy consumption is reduced.

Description

High-bearing hub bearing structure

Technical Field

The utility model relates to a high bearing wheel hub bearing structure.

Background

The hub bearing is applied to an automobile axle for bearing and providing accurate guide for transmission of a hub, in the driving process of an automobile, the hub bearing is required to bear axial force and radial force and also to bear bending moment effect formed when the automobile turns, the moment rigidity obviously influences the driving comfort and steering stability of the automobile, the low moment performance can also obviously reduce energy consumption, the high bearing performance is particularly important for large-sized vehicles, meanwhile, the moment rigidity cannot be ignored, the conventional hub bearing structure comprises a paired double-row angular contact ball bearing and a paired conical roller bearing, the paired double-row angular contact ball bearing has certain limitation on the moment rigidity in a certain supporting span range, and the paired double-row conical roller bearing has high rigidity and high bearing but larger friction loss and is not beneficial to reducing the moment.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a high hub bearing structure who bears to improve the bearing capacity and the moment rigidity of bearing and reduce the holistic friction torque of bearing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high-load-bearing hub bearing structure, includes flange outer lane, sets up split type inner circle in the flange outer lane, sets up the rolling element between flange outer lane and inner circle, the face that flange outer lane and inner circle are relative is equipped with a channel and a raceway respectively along the bearing radial direction, the rolling element is including setting up steel ball in the channel, the roller of setting in the raceway, the steel ball is four point contact with flange outer lane, inner circle, still be equipped with the holder in the channel, per two adjacent rollers are 90 mutually perpendicular cross arrangement in the raceway, be equipped with the interval between the roller and keep the ware, the roller is line contact with flange outer lane, inner circle.

As a further improvement, the inner circle components of a whole that can function independently are three parts, are first inner circle, second inner circle, third inner circle respectively, first inner circle sets up the both sides in the flange outer lane with the third inner circle, the second inner circle set up between first inner circle and third inner circle and with first inner circle, third inner circle butt, the channel sets up on the flange outer lane face relative with first inner circle, second inner circle, the raceway sets up on the flange outer lane face relative with second inner circle, third inner circle.

As a further improvement of the utility model, the contact angle of the steel ball and the channel is 35 degrees.

As a further improvement of the utility model, the flange outer lane formula outer lane as an organic whole.

The utility model has the advantages that: the hub bearing structure combining the steel balls in a row of four-point contact and the rollers in a row of crossed arrangement is arranged in the bearing, on one hand, the bearing capacity and the moment rigidity of the bearing can be greatly expanded through the four-point bearing and the crossed roller bearing, on the other hand, the friction moment of the whole bearing is reduced and the energy consumption is reduced due to the arrangement of the ball bearing in a row, and under the condition of the same size, the bearing in the scheme has higher bearing capacity and moment rigidity.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

reference numerals: 1. an outer ring of the flange; 2. a first inner race; 3. a second inner race; 4. a third inner race; 5. a steel ball; 6. a roller; 7. a channel; 8. a raceway.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1, a high-bearing hub bearing structure includes a flange outer ring 1, a split inner ring disposed in the flange outer ring 1, and a rolling element disposed between the flange outer ring 1 and the inner ring, where the surfaces of the flange outer ring 1 opposite to the inner ring are respectively provided with a row of channels 7 and a row of raceways 8 along the radial direction of the bearing, the rolling element includes a steel ball 5 disposed in the channel 7 and rollers 6 disposed in the raceways 8, the steel ball 5 is in four-point contact with the flange outer ring 1 and the inner ring, a retainer is further disposed in the channel 7, in this embodiment, a contact angle between the steel ball 5 and the channel 7 is 35 °, every two adjacent rollers 6 in the raceways 8 are arranged perpendicularly and crosswise at 90 °, a space retainer is disposed between the rollers 6, and the rollers 6 are in line contact with the flange outer ring 1 and the inner ring. The contact mode of the steel balls 5 and the grooves 7 is four-point contact, so that two pressure lines which are obliquely directed to the axis of the hub bearing unit are formed, the roller path 8 on the outer ring 1 of the bearing flange and the roller path 8 on the third inner ring 4 are respectively contacted with the rollers 6 in a line contact mode, so that one pressure line which is directed to the center of the bearing is formed, the adjacent rollers 6 in the roller paths 8 are respectively contacted with the roller path 8 on the outer ring 1 of the flange and the roller path 8 on the second inner ring 3 of the bearing, the contact mode is a line contact, so that one pressure line which is directed to the center of the bearing is formed, when the bearing bears a radial load, the steel balls 5 on the left side in the bearing are contacted with the grooves 7, and the roller paths 6 on the right side are contacted with the roller paths 8, so that four pressure lines bear the load, when the bearing bears the axial load, the bearing can bear a large axial force regardless of whether the direction of the left side of the bearing is directed to the right side of the bearing to the left side of the bearing, and when the bearing bears a moment load, two pressure lines also bear the load.

The inner ring split type bearing comprises three components, namely a first inner ring 2, a second inner ring 3 and a third inner ring 4, wherein the first inner ring 2 and the third inner ring 4 are arranged on two sides in the flange outer ring 1, the second inner ring 3 is arranged between the first inner ring 2 and the third inner ring 4 and is abutted to the first inner ring 2 and the third inner ring 4, a channel 7 is arranged on the surface of the flange outer ring 1 opposite to the first inner ring 2 and the second inner ring 3, a raceway 8 is arranged on the surface of the flange outer ring 1 opposite to the second inner ring 3 and the third inner ring 4, round corners convenient to assemble are arranged at two ends of the first inner ring, the second inner ring and the third inner ring 4, the split type inner rings are convenient to install bearing internal components and convenient to adjust axial clearance of the inner rings during installation, the flange outer ring 1 is an integrated outer ring, namely, a flange plate and an outer ring are integrally formed, so that the bearing is convenient to disassemble and the influence of assembling interference on the flexibility of the bearing can be reduced.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high-load-bearing hub bearing structure, includes flange outer lane, the split type inner circle of setting in the flange outer lane, sets up the rolling element between flange outer lane and inner circle, its characterized in that, the face that flange outer lane and inner circle are relative is equipped with a channel and a raceway respectively along the bearing radial direction, the rolling element is including setting up the steel ball in the channel, setting up the roller in the raceway, the steel ball is four point contact with flange outer lane, inner circle, still be equipped with the holder in the channel, every two adjacent rollers are 90 mutually perpendicular cross arrangement in the raceway, be equipped with the interval holder between the roller, the roller is line contact with flange outer lane, inner circle.

2. The high load bearing hub bearing structure of claim 1, wherein the inner ring is divided into three parts, namely a first inner ring, a second inner ring and a third inner ring, the first inner ring and the third inner ring are disposed on two sides of the flange outer ring, the second inner ring is disposed between the first inner ring and the third inner ring and abutted against the first inner ring and the third inner ring, the grooves are disposed on the surfaces of the flange outer ring opposite to the first inner ring and the second inner ring, and the raceways are disposed on the surfaces of the flange outer ring opposite to the second inner ring and the third inner ring.

3. A high load bearing hub bearing arrangement according to claim 2, wherein the steel balls have a contact angle with the channels of 35 °.

4. The high load bearing hub bearing arrangement of claim 1, wherein the flange outer ring is a one-piece outer ring.