CN211501360U

CN211501360U - High leakproofness magnetism seal structure

Info

Publication number: CN211501360U
Application number: CN201921970602.4U
Authority: CN
Inventors: 李凯; 汪峰; 汝连志; 胡永乐
Original assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Current assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-09-15
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a high leakproofness magnetic seal structure relates to the automobile parts field, mainly includes inner frame, outer skeleton, rubber and magnetic rubber, and the bearing inner race of wheel hub unit circle the internal frame that is equipped with admittedly, and the bearing outer race circles the outer skeleton that is equipped with admittedly, the outer cladding magnetic rubber of internal frame and with bearing inner race interference fit, magnetic rubber realizes sealedly including skeleton and bearing inner race cooperation department overflow glue, the outer cladding rubber of outer skeleton and with bearing outer race interference fit, rubber realizes sealedly at outer skeleton and bearing outer race cooperation department overflow glue. The utility model has the advantages that: the magnetic sealing element, the inner ring and the outer ring are matched, the framework is wrapped by rubber and magnetic rubber, and a good sealing effect is formed, so that the invasion of muddy water can be completely avoided in the using process, and the sealing effect of the existing magnetic sealing element is improved.

Description

High leakproofness magnetism seal structure

Technical Field

The utility model relates to an automobile parts's field, concretely relates to high leakproofness magnetic seal structure.

Background

The conventional hub unit realizes ABS signal transmission and sealing effects by installing a magnetic sealing element with inner and outer frameworks, rubber and magnetic rubber between an inner ring and an outer ring of a bearing, but the matching part of the magnetic sealing element, the inner ring and the outer ring of the bearing in the prior art is free of rubber or a gap formed by wrapping the magnetic rubber, so that muddy water cannot be prevented from invading from the gap in the use process, the normal running of a vehicle is influenced, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a high leakproofness magnetic seal structure, realize the totally closed to the interior outer cooperation position of magnetic seal spare, can avoid muddy water to invade from the cooperation position completely in the use.

The purpose of the utility model is accomplished through following technical scheme: the high-sealing-performance magnetic sealing structure is installed between a bearing inner ring and a bearing outer ring of a hub unit and mainly comprises an inner framework, an outer framework, rubber and magnetic rubber, wherein the inner framework is fixedly installed on the bearing inner ring of the hub unit, the outer framework is fixedly installed on the bearing outer ring, the magnetic rubber is coated outside the inner framework and is in interference fit with the bearing inner ring, the magnetic rubber is coated at the matching position of the inner framework and the bearing inner ring to realize sealing, the rubber is coated outside the outer framework and is in interference fit with the bearing outer ring, and the rubber is coated at the matching position of the outer framework and the bearing outer ring to realize sealing.

Furthermore, a plurality of sealing lips are arranged on the rubber.

The utility model has the advantages that: the magnetic sealing element, the inner ring and the outer ring are matched, the framework is wrapped by rubber and magnetic rubber, and a good sealing effect is formed, so that the invasion of muddy water can be completely avoided in the using process, and the sealing effect of the existing magnetic sealing element is improved.

Drawings

Fig. 1 is a schematic view of the installation position of the present invention.

Fig. 2 is a partially enlarged view of the area a in fig. 1.

Description of reference numerals: the wheel hub unit comprises a wheel hub unit 1, a bearing inner ring 2, a bearing outer ring 3, an inner framework 4, an outer framework 5, rubber 6, magnetic rubber 7 and a sealing lip 8.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached figure 1, the high-sealing-performance magnetic sealing structure is arranged between a bearing inner ring 2 and a bearing outer ring 3 of a hub unit 1 and mainly comprises an inner framework 4, an outer framework 5, rubber 6 and magnetic rubber 7, wherein the inner framework 4 is fixedly arranged on the bearing inner ring 2 of the hub unit 1, the outer framework 5 is fixedly arranged on the bearing outer ring 3, the magnetic rubber 7 is coated outside the inner framework 4 and is in interference fit with the bearing inner ring 2, the magnetic rubber 7 is coated at the matching position of the inner framework 4 and the bearing inner ring 2 to realize sealing, the rubber 6 is coated outside the outer framework 5 and is in interference fit with the bearing outer ring 3, and the rubber 6 is coated at the matching position of the outer framework 5 and the bearing outer ring 3 to realize sealing.

Preferably, two (or more) sealing lips 8 are provided on the rubber 6.

The utility model discloses a theory of operation: the utility model discloses an at magnetic seal spare and bearing inner and

outer lane

2, 3 cooperation position department (B, C department in fig. 2 promptly), use rubber 6 and magnetic rubber 7 parcel skeleton to with inner circle, outer lane interference fit, thereby form good sealed effect to B, C department position, consequently can avoid muddy water's invasion completely in the use, improved current magnetic seal spare's sealed effect. Meanwhile, the number of the sealing lips 8 arranged on the rubber 6 is not limited, and can be 2 lips, 3 lips, 4 lips and the like as required.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. The utility model provides a high leakproofness magnetic seal structure installs between bearing inner race (2) and bearing outer lane (3) of wheel hub unit (1), its characterized in that: the wheel hub unit mainly comprises an inner frame (4), an outer frame (5), rubber (6) and magnetic rubber (7), wherein the inner frame (4) is fixedly arranged on a bearing inner ring (2) of a wheel hub unit (1), the outer frame (5) is fixedly arranged on a bearing outer ring (3), the inner frame (4) is coated with the magnetic rubber (7) and is in interference fit with the bearing inner ring (2), the magnetic rubber (7) is sealed at the glue overflow at the matching position of the inner frame (4) and the bearing inner ring (2), the outer frame (5) is coated with the rubber (6) and is in interference fit with the bearing outer ring (3), and the rubber (6) is sealed at the glue overflow position of the matching position of the outer frame (5) and the bearing outer ring (3).

2. The high-sealability magnetic sealing structure according to claim 1, wherein: and a plurality of sealing lips (8) are arranged on the rubber (6).