CN210889795U

CN210889795U - Suspension bearing lower cover assembly

Info

Publication number: CN210889795U
Application number: CN201921837057.1U
Authority: CN
Inventors: 黄钦; 沈一飞; 张庆新
Original assignee: Shanghai Sai Ye Shi Auto Parts Co ltd
Current assignee: Shanghai Sai Ye Shi Auto Parts Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-30
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a suspension bearing lower cover subassembly relates to the automotive technology field, this suspension bearing lower cover subassembly connects lower cover body and sealing device admittedly, connect admittedly through cup joint and cover groove simultaneously, the firm of sealed checkpost and seal groove connects increases the connection reliability admittedly, the inboard axial flange of interior survey and the radial flange in the outside can block silt, the seal lip of two directions provides the contact laminating formula sealed, compare in conventional annular space's labyrinth seal, this application can be more effectual inside muddy water and the sand and dust invasion bearing of prevention outside through brand-new lower cover body structure and sealing device structure.

Description

Suspension bearing lower cover assembly

Technical Field

The utility model belongs to the technical field of the automotive technology and specifically relates to a suspension bearing lower cover subassembly.

Background

The automobile suspension system is used for connecting automobile wheels and an automobile body, can keep the contact between tires and the road surface and the ground grabbing force, can slow down the impact force transmitted to the automobile body by the road surface, and can absorb the vibration energy transmitted to the automobile body by the road surface, thereby isolating the noise caused by the road surface, impacting and reducing the vibration of the automobile body caused by the impact, and ensuring the smooth running of the automobile and providing the driving comfort. Meanwhile, the suspension system also needs to be capable of rotating, so that the accuracy and smoothness in the direction hitting are guaranteed.

Suspension bearings are important components of suspension systems, which are located at the upper ends of coil springs in the suspension systems, and the upper ends of the suspension bearings are usually connected to the vehicle body by a top end connecting plate. The force from the wheel is transmitted to the vehicle body through the coil spring and the suspension bearing. The suspension bearing needs to be able to withstand large axial forces. As shown in fig. 1, the suspension bearing is generally constructed to include an upper bearing cover 11 coupled to the top end connection plate, a lower bearing cover 12 coupled to the coil spring, and a rolling assembly 13 interposed between the upper and lower covers. The rolling assembly 13 is composed of rolling elements 14 (balls or rollers) and upper and

lower races

15 and 16. The upper bearing cover 11 and the lower bearing cover 12 form an annular space 17, so that the function of preventing muddy water from invading is achieved, the sealing structure has certain limitation, if the external muddy water environment is harsh, the muddy water still can enter the annular space region, and then invades the rolling assembly part, the rolling assembly is a metal element, and after the muddy water invades, rust corrosion can be caused, and finally the service life of the bearing is reduced. The lower bearing cover can be optionally provided with a sealing device which is usually made of rubber or elastomer materials, the lower bearing cover is usually made of engineering plastic materials, the existing design has the defects that the structure is simple, the combination of two different materials is poor, and the two components are separated after the bearing is durable.

SUMMERY OF THE UTILITY MODEL

The inventor provides a suspension bearing lower cover subassembly to above-mentioned problem and technical demand, the technical scheme of the utility model as follows:

a suspension bearing lower cover assembly comprises a lower cover body and a sealing device fixedly connected with the lower cover body, wherein the lower cover body is of an annular structure, an inner axial rib protruding axially is arranged at the inner diameter of the lower cover body along the circumferential direction, an outer axial rib protruding axially is arranged at the outer diameter of the lower cover body along the circumferential direction, and a rolling body is arranged between the inner axial rib and the outer axial rib; the inner diameter side of the lower cover body extends towards the inner diameter direction to form a lower buckle, and the outer diameter side of the lower cover body extends towards the outer diameter direction to form a radial flange; the outer axial flange is circumferentially provided with a sleeving groove, and the lower cover body is circumferentially provided with a sealing clamping groove on the outer side of the outer axial flange; sealing device includes sealing base and follows the first seal lip of the last extension of sealing base, the second seal lip, sealing clip and cup joint the groove, sealing base connects firmly with the lower cover body, each cup joints the groove and sets up in sealing base's internal diameter side and to the internal diameter direction arch along circumference, each cup joints the inslot of joining of imbedding the lower cover body respectively and carries out the solid antithetical couplet, each sealing clip sets up and connects firmly in embedding each sealing clip groove of lower cover body respectively along sealing base's circumference, first seal lip extends to the outside footpath direction from sealing base, the second seal lip extends to the axial direction from sealing base.

The further technical scheme is that a plurality of rib positions are circumferentially distributed on the outer diameter side edge of the lower cover body, and each rib position protrudes out of the surface of the lower cover body.

The utility model has the beneficial technical effects that:

the application discloses suspension bearing lower cover subassembly, this suspension bearing lower cover subassembly connects lower cover body and sealing device admittedly, connect admittedly through cup joint head and cover groove simultaneously, the firm of sealed checkpost and seal groove connects increases the connection reliability, the inboard axial flange of interior survey and the radial flange in the outside can block silt, the seal lip of two directions provides the contact laminating formula and seals, compare in conventional annular space's labyrinth seal, this application can be more effectual inside muddy water and the sand and dust invasion bearing of prevention outside through brand-new lower cover body structure and sealing device structure.

Drawings

Fig. 1 is a structural view of a conventional suspension bearing.

Fig. 2 is a structural sectional view of a suspension bearing lower cover assembly disclosed in the present application.

Fig. 3 is an axial exploded view of a portion of the structure of the suspension bearing lower cover assembly disclosed in the present application.

Fig. 4 is a structural sectional view of a lower cap body and a sealing device fixing portion in the present application.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 2, the suspension bearing lower cover assembly includes a lower cover body 21 and a sealing device 22 fixedly connected to the lower cover body 21. The lower cap body 21 has an annular structure, and is typically made of engineering plastic. The inner diameter of the lower cover body 21 is provided with an axially convex inner axial rib 23 along the circumferential direction, and the outer diameter is provided with an axially convex outer axial rib 24 along the circumferential direction. Rolling bodies are arranged between the inner axial rib 23 and the outer axial rib 24. The inner diameter side of the lower cap body 21 extends to the inner diameter direction to form a lower buckle 25, and the outer diameter side of the lower cap body 21 extends to the outer diameter direction to form a radial rib 26. The outer axial rib 24 is provided with a sleeve groove 27 along the circumferential direction, and the lower cover body 21 is provided with a sealing clamping groove 28 along the circumferential direction outside the outer axial rib 24. A plurality of rib positions 29 are circumferentially distributed on the side edge of the outer diameter of the lower cover body 21, and each rib position 29 protrudes out of the surface of the lower cover body 21, so that the lower cover body is conveniently and tightly matched with peripheral parts.

The sealing device 22 is made of rubber or elastomer, and includes a sealing base 210, and a sealing clip 211 extending from the sealing base 210, a socket 212, a first sealing lip 213, and a second sealing lip 214. The sealing base 210 is fixedly connected with the lower cover body 21, each socket joint 212 is circumferentially arranged on the inner diameter side of the sealing base 210 and protrudes towards the inner diameter direction, and each socket joint 212 is respectively embedded into each socket groove 27 of the lower cover body 21 and is fixedly connected with the socket groove 27. Each sealing clip 211 is arranged along the circumferential direction of the sealing base 210 and protrudes axially, and each sealing clip 211 is embedded into each sealing clip groove 28 of the lower cover body 21 and fixedly connected with the sealing clip groove 28. The first seal lip 213 extends radially outward from the seal base 210, and the second seal lip 214 extends axially outward from the seal base 210.

What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.

Claims

1. The suspension bearing lower cover component is characterized by comprising a lower cover body and a sealing device fixedly connected with the lower cover body, wherein the lower cover body is of an annular structure, an inner axial rib which is axially convex is arranged at the inner diameter of the lower cover body along the circumferential direction, an outer axial rib which is axially convex is arranged at the outer diameter of the lower cover body along the circumferential direction, and a rolling body is arranged between the inner axial rib and the outer axial rib; the inner diameter side of the lower cover body extends towards the inner diameter direction to form a lower buckle, and the outer diameter side of the lower cover body extends towards the outer diameter direction to form a radial flange; the outer axial retaining edge is circumferentially provided with a sleeving groove, and the lower cover body is circumferentially provided with a sealing clamping groove on the outer side of the outer axial retaining edge; sealing device includes sealing base and follow first seal lip, second seal lip, sealed checkpost and the joint of cup jointing of extending department on the sealing base, sealing base with the lower cover body links firmly, each cup joint along circumference set up in sealing base's internal diameter side and to the internal diameter direction arch, each cup joint the head embedding respectively the each of lower cover body overlap the inslot and carry out the solid and ally oneself with, each sealed checkpost along sealing base's circumference sets up and imbeds respectively the each of lower cover body carry out the solid and ally oneself with in the sealed draw-in groove, first seal lip is followed outside radial direction extends on the sealing base, second seal lip follows axial direction extends out on the sealing base.

2. The suspension bearing lower cover assembly according to claim 1, wherein a plurality of rib locations are circumferentially distributed on an outer diameter side edge of the lower cover body, and each rib location protrudes out of the surface of the lower cover body.