CN-224210827-U - Hub unit with multiple lips and high sealing performance sealing ring

Abstract

The utility model relates to a hub unit with a multi-lip high-sealing-performance sealing ring, which belongs to the technical field of hub bearing structures and comprises a hub flange, wherein a plurality of assembling bolts which are spliced with the hub flange are arranged on the hub flange, an outer ring flange sleeved with the hub flange is arranged on the hub flange, an inner ring which is nested with the hub flange in a clamping groove mode is arranged between the rear end of the outer ring flange and the hub flange, retainers are arranged between the outer ring flange and the inner ring and between the front end of the outer ring flange and the hub flange, a plurality of balls which are distributed in an annular mode are arranged on the retainers, a multi-lip sealing piece is arranged between the front end of the outer ring flange and the hub flange, a magnetic sealing piece is arranged between the rear end of the outer ring flange and the inner ring, and steel belt rings which are nested with the inner ring in a clamping groove mode are arranged between the multi-lip sealing piece and the inner ring. Has the characteristics of simple structure, good sealing effect and long service life. Solves the problems of insufficient lubricating oil and accelerated abrasion caused by poor sealing and impurity entering.

Inventors

• XU WEI
• YU XIANJUN
• WANG XIUJUAN

Assignees

• 杭州雷迪克节能科技股份有限公司

Dates

Publication Date

20260508

Application Date

20250617

Claims (4)

1. 1. The multi-lip hub unit with the high-sealing-performance sealing ring is characterized by comprising a hub flange (3), wherein a plurality of assembling bolts (2) which are spliced with the hub flange (3) are arranged on the hub flange (3), an outer ring flange (1) sleeved with the hub flange (3) is arranged on the hub flange (3), an inner ring (10) which is nested with the hub flange (3) in a clamping groove mode is arranged between the rear end of the outer ring flange (1) and the hub flange (3), a retainer (6) is arranged between the outer ring flange (1) and the inner ring (10), the front end of the outer ring flange (1) and the hub flange (3), a plurality of balls (8) which are distributed annularly and movably sleeved with the retainer (6) are arranged on the retainer (6), a multi-lip sealing piece (4) is arranged between the front end of the outer ring flange (1) and the hub flange (3), a magnetic sealing piece (9) is arranged between the rear end of the outer ring flange (1) and the inner ring (10), and the magnetic sealing piece (10) is arranged between the multi-lip sealing piece (4) and the inner ring (10), and the magnetic sealing piece (10) are nested between the magnetic sealing piece (10 and the inner ring (10).
2. 2. The hub unit with the multi-lip sealing ring with the high sealing performance according to claim 1, wherein the multi-lip sealing member (4) comprises a multi-bending supporting framework (14) nested with the inner wall and the end face of the outer ring flange (1), a sealing layer (12) fixedly sleeved on the multi-bending supporting framework (14) in a clamping and embedding mode is arranged on the multi-bending supporting framework (14), and a plurality of sealing lips (13) integrated with the sealing layer (12) are arranged between the sealing layer (12) and the hub flange (3).
3. 3. The hub unit with the multi-lip high-sealing-performance sealing ring according to claim 1, wherein the magnetic sealing piece (9) comprises a magnetic ring (18), and an L-shaped multi-lip framework sealing ring (15) is arranged between the magnetic ring (18) and the outer ring flange (1).
4. 4. The hub unit with the multi-lip high-sealing-performance sealing ring according to claim 3, wherein a plurality of elastic fasteners (11) which are distributed in a ring shape are arranged between the magnetic ring (18) and the inner ring (10), the elastic fasteners (11) comprise springs (17) which are inserted into the inner ring (10), and steel balls (16) are arranged between the springs (17) and the magnetic ring (18).

Description

Hub unit with multiple lips and high sealing performance sealing ring Technical Field The utility model relates to the technical field of hub bearing structures, in particular to a hub unit with a multi-lip sealing ring with high sealing performance. Background The hub unit, also called hub bearing, is one of the key components of the car, its main function being to carry the weight and to provide accurate guidance for the rotation of the hub, which requires it to be able to carry not only axial loads but also radial loads. The traditional bearing for the automobile wheel is formed by combining two tapered roller bearings or ball bearings, and the installation, oiling, sealing and clearance adjustment of the bearing are all carried out on an automobile production line. The structure makes the assembly of the bearing in an automobile production factory difficult, the cost is high, the reliability is poor, and the bearing also needs to be cleaned, oiled and adjusted when the automobile is maintained at a maintenance point. With the development of science and technology, passenger cars have widely used a passenger car hub unit. The range and amount of use of hub-bearing units is increasing, and has now evolved to the third generation. The first generation is composed of double-row angular contact bearings, and the second generation is provided with a flange for fixing the bearings on an outer raceway, so that the bearings can be simply sleeved on a wheel shaft and fixed by nuts, and the maintenance of the automobile is easy. But the sealing structure of the hub bearing unit directly affects the service life. Disclosure of Invention The utility model mainly solves the defects existing in the prior art, and provides the hub unit with the multi-lip sealing ring with high sealing performance, which has the characteristics of simple structure, good sealing effect and long service life. Solves the problems of insufficient lubricating oil and accelerated abrasion caused by poor sealing and impurity entering. The technical problems of the utility model are mainly solved by the following technical proposal: The utility model provides a many lips take hub unit of high leakproofness sealing washer, includes the hub flange, the hub flange on be equipped with a plurality of assembly bolts that peg graft mutually with the hub flange, the hub flange on be equipped with the outer lane flange that cup joints mutually with the hub flange, outer lane flange rear end and hub flange between be equipped with the inner circle that hub flange looks draw-in groove formula is nested, outer lane flange and inner circle between outer lane flange front end and hub flange all be equipped with the holder, the holder on be equipped with a plurality of be annular distribution and with the ball that the holder cup jointed mutually movable, outer lane flange front end and hub flange between be equipped with many lips sealing member, outer lane flange rear end and inner circle between be equipped with magnetic seal, many lips sealing member and inner circle between magnetic seal and the inner circle all be equipped with the steel band circle that the inner circle looks draw-in groove formula is nested. The length of the assembly bolts is larger than the distance between the outer ring flange and the hub flange, the assembly bolts are required to be installed before the outer ring flange is installed, and the assembly bolts are longer than other parts in service life and are not detachable through the structure of the assembly bolts, so that the situation that the assembly bolts are lost in the process of disassembling the hub is avoided. Preferably, the multi-lip sealing member comprises a multi-bending supporting framework nested with the inner wall and the end face of the outer ring flange, a sealing layer clamped and fixedly sleeved with the multi-bending supporting framework is arranged on the multi-bending supporting framework, and a plurality of sealing lips integrated with the sealing layer are arranged between the sealing layer and the hub flange. Preferably, the magnetic sealing element comprises a magnetic ring, and an L-shaped multi-lip framework sealing ring is arranged between the magnetic ring and the outer ring flange. Preferably, a plurality of elastic fasteners distributed in a ring shape are arranged between the magnetic ring and the inner ring, each elastic fastener comprises a spring which is inserted into the inner ring, and a steel ball is arranged between the spring and the magnetic ring. The utility model can achieve the following effects: Compared with the prior art, the hub unit with the multi-lip sealing ring has the characteristics of simple structure, good sealing effect and long service life. Solves the problems of insufficient lubricating oil and accelerated abrasion caused by poor sealing and impurity entering. Drawings Fig. 1 is a cross-sectional view of the structure of the present utility model. Fig. 2 is a sch