CN205311259U

CN205311259U - Drag arm bush

Info

Publication number: CN205311259U
Application number: CN201521034698.5U
Authority: CN
Inventors: 李晓武; 刘东升; 陈绪安; 刘涛; 于永韦
Original assignee: Boghos Metal Rubber (shanghai) Co Ltd
Current assignee: Boghos Metal Rubber (shanghai) Co Ltd
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-06-15
Anticipated expiration: 2025-12-11

Abstract

The utility model discloses a drag arm bush, including the inner frame, and cup joint the outer skeleton in the radial outside of inner frame, the center of inner frame be equipped with with drag arm bush axial direction parallel's central through hole, equipartition honeycomb through -hole around the central through hole, center on the interior circumference wall of outer skeleton, alternative equipartition has two X to personally experience sth. Part of the body to rubber to the rubber body and two Z in proper order, Z during to the rubber component parts of an entirety with the periphery wall of inner frame with the interior circumference wall of outer skeleton bonds fixedly, X to the rubber body with the interior circumference wall of outer skeleton bonds and fixes, and with leave the clearance between the periphery wall of inner frame, X to the rubber body with Z is different to the hardness of the rubber body. Its technological effect is: realized that drag arm bush is in radial regulation of rigidity on equidirectional to satisfy the needs of automobile vendor.

Description

A kind of towing arm bush

Technical field

A kind of towing arm bush in this utility model auto parts machinery field.

Background technology

In order to improve comfortableness and the maneuvering performance of automobile, independent suspension utilization in rear overhang rack gets more and more, and conventional suspension form has multi-link lever suspension fork, double wishbone suspension etc. Towing arm is commonly referred to as longitudinal control arm, and it is relatively common in multi link formula rear suspension. Towing arm is connected by lining and vehicle body. Vehicle, from the power of wheel, passes to vehicle body by towing arm bush, and therefore the performance such as the stability of towing arm bush, rigidity is the key factor affecting dynamic suspension system of vehicles performance. Current towing arm bush, it is difficult to meet car manufactures for the tighter rigidity of towing arm bush to requiring, is namely difficult to meet radially solid, hollow and that axial direction is tighter rigidity requirement simultaneously.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of towing arm bush, it is rigidity scalable on different directions radially, to meet the needs of automobile vendor.

A kind of technical scheme realizing above-mentioned purpose is: a kind of towing arm bush, including inner frame, and is socketed in the purchasing ore of described inner frame radial outside; The center of described inner frame is provided with the central through hole axially in parallel with described towing arm bush, the uniform honeycomb through hole of surrounding of described central through hole;

Around the inner peripheral wall of described purchasing ore, being alternately evenly equipped with two X successively to rubber bodies and two Z-direction rubber bodies, described Z-direction rubber bodies bonds fixing simultaneously with the inner peripheral wall of the periphery wall of described inner frame and described purchasing ore; Described X is fixing with the inner peripheral wall bonding of described purchasing ore to rubber bodies, and and leave gap between the periphery wall of described inner frame; Described X is different from the hardness of described Z-direction rubber bodies to rubber bodies.

Further, described towing arm bush also includes a block, the equal opening in two ends up and down of described block, the periphery wall of the sidewall of described block and described inner frame is fitted, the sidewall of described block is additionally provided with two simultaneously for the draw-in groove with described Z-direction rubber bodies clamping, in the both sides of described draw-in groove, the sidewall of described block is plugged on the periphery wall of described inner frame and described X in the gap between rubber bodies.

Further, described X is up-small and down-big to the width in the gap between the periphery wall of rubber bodies and described inner frame, and described X is to the hardness of the rubber bodies hardness more than described Z-direction rubber bodies.

Further, described X is provided with X to hollow-core construction to rubber bodies.

Further, described X is to rubber bodies and described Z-direction rubber bodies sulfidization molding simultaneously in injection mold.

Further, described inner frame and described purchasing ore are that aluminium alloy is made, and described block is that plastics are made.

Have employed the technical scheme of a kind of towing arm bush of the present utility model, including inner frame, and be socketed in the purchasing ore of described inner frame radial outside; The center of described inner frame is provided with the central through hole axially in parallel with described towing arm bush, the uniform honeycomb through hole of surrounding of described central through hole; Around the inner peripheral wall of described purchasing ore, being alternately evenly equipped with two X successively to rubber bodies and two Z-direction rubber bodies, described Z-direction rubber bodies bonds fixing simultaneously with the inner peripheral wall of the periphery wall of described inner frame and described purchasing ore; Described X is fixing with the inner peripheral wall bonding of described purchasing ore to rubber bodies, and and leave gap between the periphery wall of described inner frame; Described X is different from the hardness of described Z-direction rubber bodies to rubber bodies. It has the technical effect that and achieves towing arm bush adjustment of rigidity on different directions radially, to meet the needs of automobile vendor.

Accompanying drawing explanation

Fig. 1 is the top view of a kind of towing arm bush of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is the axonometric chart of block in a kind of towing arm bush of the present utility model.

Detailed description of the invention

Referring to Fig. 1, inventor of the present utility model, in order to enable better the technical solution of the utility model to be understood, below by specifically embodiment, and is described in detail in conjunction with accompanying drawing:

This utility model one towing arm bush, is made up of inner frame 1, rubber bodies 2, block 3 and purchasing ore 4. Inner frame 1 and purchasing ore 4 all adopt aluminium alloy. Block 3 adopts plastic material under the premise ensureing product strength, meets the lightweight requirements of automobile.

Purchasing ore 4 is socketed in the radial outside of inner frame 1.

Inner frame 1 is the cross sectional shape of an end face is orthohexagonal column, the center of inner frame 1 be one circular, the central through hole 11 axially in parallel with towing arm bush, circumference around this central through hole 11, it is evenly equipped with eight honeycomb through holes 12, under meeting the premise that inner frame 1 buckling requires, by designing multiple honeycomb through hole 12, it is possible to reduce weight and the cost of product. Certainly, the shape of inner frame 1 end face can also be other shape.

Rubber bodies 2 includes two X to rubber bodies 21 and two Z-direction rubber bodies 22. Wherein, one end of Z-direction rubber bodies 22 bonds with the outer wall on a limit in the hexagon of inner frame 1 and fixes, and other end is fixing with the inner peripheral wall bonding of purchasing ore 4. Simultaneously two Z-direction rubber bodies 22 are around this and drag dress to force the circumference of lining symmetrically arranged. And X is symmetricly set on the both sides of two Z-direction rubber bodies 22 lines to rubber bodies 21, and bond fixing with the inner peripheral wall of purchasing ore 4. Meanwhile, two X are arranged with X to hollow-core construction 211 to rubber bodies 21. The inner peripheral wall that alternatively two X are around purchasing ore 4 to rubber bodies 21 and two Z-direction rubber bodies 22 replaces uniform successively.

The equal opening in two ends up and down of block 3,31 sidewalls of block 3 are fitted with the periphery wall of inner frame 1, it is ensured that block 3 can coordinate with inner frame 1.Simultaneously, the sidewall of block 3 is additionally provided with two be oppositely arranged, it is possible to the draw-in groove 32 of Z-direction rubber bodies 22 clamping, in the both sides of draw-in groove 32, the sidewall 31 of block 3 is plugged on X in the gap between rubber bodies 21 and inner frame 1, and contacts to rubber bodies 21 extruding with X.

In the present embodiment, X is higher than the hardness of Z-direction rubber bodies 22 to rubber bodies 21 hardness. After this towing arm bush entrucking, certain preloading can be had in+Fx direction, therefore during design, Z-direction rubber bodies 22 is partial to the offset distance in-Fx direction is a, Z-direction rubber bodies 22 is not symmetrical in Fx direction, therefore before loading block 3, at the periphery wall of Fx direction inner frame 1 and X to the width in the gap between rubber bodies 21, it is along Fy direction, reduces from bottom to up. After loading block 3, the top of inner frame 1 can be produced extruding force to rubber bodies 21 by X, and this extruding force can offset preloading suffered by inner frame 1 after towing arm bush is assembled on car.

Block 3 adopts plastic material can reduce product weight.

Purchasing ore 4 is flanged (FLGD) light-wall pipe, and tube wall has the flange turned up, and material adopts aluminium alloy.

In the present embodiment, after inner frame 1, purchasing ore 4, X have vulcanized to rubber bodies 21, Z-direction rubber bodies 22, refill and join block 3, and the either flush of the end face of block 3 and inner frame 1.

X is by being injected simultaneously in injection mold by the sizing material of two kinds of different hardness when sulfuration to rubber bodies 21 hardness higher than Z-direction rubber bodies 22, it is possible to regulate towing arm bush easily respectively in both direction radially, i.e. rigidity on Fx direction and Fz direction.

The reason realizing above-mentioned technique effect is in that: regulate the X shape to rubber bodies 21 and Z-direction rubber bodies 22 and hardness respectively to while meeting customer requirement, without influence on hardness and the rigidity of other parts of towing arm bush, therefore easy to adjust, simple.

It is of course also possible to be X to the hardness of rubber bodies 21 hardness lower than Z-direction rubber bodies 22.

Those of ordinary skill in the art will be appreciated that, above embodiments is intended merely to explanation this utility model, and it is not used as to restriction of the present utility model, as long as in spirit of the present utility model, the change of embodiment described above, modification all will be dropped in Claims scope of the present utility model.

Claims

1. a towing arm bush, including inner frame, and is socketed in the purchasing ore of described inner frame radial outside; The center of described inner frame is provided with the central through hole axially in parallel with described towing arm bush, the uniform honeycomb through hole of surrounding of described central through hole; It is characterized in that:

2. a kind of towing arm bush according to claim 1, it is characterized in that: described towing arm bush also includes a block, the equal opening in two ends up and down of described block, the periphery wall of the sidewall of described block and described inner frame is fitted, the sidewall of described block is additionally provided with two simultaneously for the draw-in groove with described Z-direction rubber bodies clamping, in the both sides of described draw-in groove, the sidewall of described block is plugged on the periphery wall of described inner frame and described X in the gap between rubber bodies.

3. a kind of towing arm bush according to claim 2, it is characterised in that: described X is up-small and down-big to the width in the gap between the periphery wall of rubber bodies and described inner frame, and described X is to the hardness of the rubber bodies hardness more than described Z-direction rubber bodies.

4. a kind of towing arm bush according to claim 2, it is characterised in that: described X is provided with X to hollow-core construction to rubber bodies.

5. a kind of towing arm bush according to claim 2, it is characterised in that: described X is to rubber bodies and described Z-direction rubber bodies sulfidization molding simultaneously in injection mold.

6. a kind of towing arm bush according to claim 2, it is characterised in that: described inner frame and described purchasing ore are that aluminium alloy is made, and described block is that plastics are made.