CN203655995U

CN203655995U - Lining for automobile rear axle torsion beam

Info

Publication number: CN203655995U
Application number: CN201320888737.2U
Authority: CN
Inventors: 刘涛; 李晓武; 于永韦
Original assignee: ZF RUBBER METAL (SHANGHAI) CO Ltd
Current assignee: Boghos Metal Rubber (shanghai) Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-18
Anticipated expiration: 2023-12-31

Abstract

The utility model discloses a lining for an automobile rear axle torsion beam in the field of automobile fittings. The lining comprises an inner sleeve, a lining body and an outer sleeve that nest each other in order from inside to outside. The inner sleeve, the lining body and the outer sleeve are entirely molded through sulfuration. Two stress grooves axially penetrating the lining body are symmetrically distributed in the lining body. Each stress groove is enclosed by a left transverse plane, a right transverse plane, an outer side surface and an inner side surface, wherein a stress disperse structure is disposed at a place of connection between the left transverse plane and the outer side surface, a stress disperse structure is also disposed at a place of connection between the right transverse plane and the outer side surface, and the two stress disperse structures are symmetric. The technical effects are that the lining for an automobile rear axle torsion beam which is not liable to break is greatly improved in durability and meets requirements of an automobile general assembly factory in terms of dynamic and static rigidity without increases of the production cost.

Description

A kind of automobile axle torsion beam lining

Technical field

The utility model relates to a kind of automobile axle torsion beam lining in auto parts machinery field.

Background technique

Automobile axle torsion beam is most important to automobile back wheel control in the process of moving with lining.Impact and impact that in vehicle traveling process, automobile axle torsion beam is brought by operating modes such as lining can be subject to accelerating, slow down, turn, jolt, can realize automobile back wheel normally travelling under above-mentioned operating mode by automobile axle torsion beam with the plastic deformation of lining.But automobile axle torsion beam uses the force status of lining more than many connecting rods of automobile back axle lining harshness, therefore automobile axle torsion beam easily ruptures with lining in vehicle traveling process, then can cause automobile to turn in turning process to be not enough to and the automobile phenomenon of wagging the tail occurs automobile in the time accelerating or slow down.Automobile axle torsion beam repeatedly ruptures in road examination process with lining at present, and the safe driving meeting of automobile is brought to potential safety hazard.The generation of above-mentioned situation is with automobile axle torsion beam is unreasonable closely related with bush structure at present.

Current torsion beam rear axle comprises from inside to outside inner sleeve 1, bush body 2 and the outer sleeve 3 of socket successively with lining, inner sleeve 1, bush body 2 and the overall sulfidization molding of outer sleeve 3, in bush body 2, be symmetrically distributed with the stress groove 4 of two axial penetration liner bodies 2, for disperseing the stress of torsion beam rear axle lining at vehicle traveling process, every stress groove 4 is by left side 41,

right side

42,44 4 faces of outer side surface 43 and inner side surface surround, and wherein left side 41 and right side 42 are arc surface.It is far from being enough that but stress groove 4 is only set.

Model utility content

The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of automobile axle torsion beam lining is provided, lining easy-rupturing not in vehicle traveling process for this automobile axle torsion beam, the raising greatly of endurance quality.

A kind of technological scheme that realizes above-mentioned purpose is: a kind of automobile axle torsion beam lining, comprise the inner sleeve, bush body and the outer sleeve that are from inside to outside socketed successively, described inner sleeve, described bush body and described outer sleeve entirety sulfidization molding, in described bush body, be symmetrically distributed with two stress grooves that axially run through described bush body;

Every described stress groove is by left side, right side, and four faces of outer side surface and inner side surface surround, the joint of wherein said left side and described outer side surface, and the joint of described right side and described outer side surface is arranged with stress dispersion structure.

Further, in every described stress groove, between the joint of described left side and described outer side surface and the end face of described bush body, between described left side and the joint of described outer side surface and the bottom surface of described bush body, between described right side and the joint of described outer side surface and the end face of described bush body, be equipped with rounding as described stress dispersion structure between described right side and the joint of described outer side surface and the bottom surface of described bush body.

Further, in every described stress groove, the joint of the joint of described left side and described outer side surface and described right side and described outer side surface, be arranged with to described outer sleeve one side-prominent, axially run through the stress dispersion mouth of described bush body, as described stress dispersion structure, described stress dispersion mouth and described stress groove are connected as a single entity.

Further, the hardness of described inner sleeve and described outer sleeve is greater than the hardness of described lining.

Further, the outer ring of described inner sleeve is provided with and is arranged with two flanges.

Adopt the technological scheme of a kind of automobile axle torsion beam lining of the present utility model, in automobile axle torsion beam with the left side of two stress grooves on lining and the joint of outer side surface, and the symmetrical technological scheme that increases stress dispersion structure in the joint of right side and outer side surface.Its technique effect is: lining easy-rupturing not in vehicle traveling process for this automobile axle torsion beam, the raising greatly of endurance quality, meet the Dynamic and static stiffness requirement of auto assembly factory for automobile axle torsion beam lining simultaneously, and do not increase the cost of production of product.

Brief description of the drawings

Fig. 1 is a kind of automobile axle torsion beam lining of the present utility model the first embodiment's plan view.

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

Fig. 3 is a kind of automobile axle torsion beam lining of the present utility model the first embodiment's stereogram.

Fig. 4 is a kind of automobile axle torsion beam lining of the present utility model the second embodiment's plan view.

Fig. 5 is that the A-A of Fig. 4 is to sectional view.

Embodiment

Refer to Fig. 1 to Fig. 5, inventor of the present utility model, in order to understand the technical solution of the utility model better, below by specific embodiment, and is described in detail by reference to the accompanying drawings:

The first embodiment

Refer to Fig. 1 to Fig. 3, a kind of automobile axle torsion beam lining of the present utility model, comprises from inside to outside inner sleeve 1, bush body 2 and the outer sleeve 3 of socket successively, inner sleeve 1, bush body 2 and the overall sulfidization molding of outer sleeve 3.In conventional design, the hardness of inner sleeve 1 and outer sleeve 3 is greater than the hardness of bush body 2, and the degree of cure of inner sleeve 1 and outer sleeve 3 is higher than the hardness of bush body 2 in other words

In bush body 2, be symmetrically distributed with two stress grooves 4 of axial penetration liner body 2; Stress groove 4 is surrounded by left side 41, outer side surface 43, right side 42 and inner side surface 44.Wherein left side 41 and right side 42 are arc surface.The wherein joint of left side 41 and outer side surface 43, and right side 42 is arranged with stress dispersion structure with the joint of outer side surface 43.

In the present embodiment, stress dispersion structure on stress groove 4 is: between the joint of left side 41 and outer side surface 43 and the end face of bush body 2, between the bottom surface of the joint of left side 41 and outer side surface 43 and bush body 2, between the end face of the joint of right side 42 and outer side surface 43 and bush body 2, between the joint of right side 42 and outer side surface 43 and the bottom surface of bush body 2, be provided with rounding 45.

The object of design is to disperse inner sleeve 1, bush body 2 and the suffered stress of outer sleeve 3 of automobile axle torsion beam lining like this, under identical stressing conditions, than the automobile axle torsion beam lining that there is no rounding 45, increase rounding 45 the automobile axle torsion beam stress decrease of bush inside 15%.Lining easy-rupturing not in vehicle traveling process for automobile axle torsion beam, working life, the mileage number that travels has increased by 30%, the Dynamic and static stiffness of lining for automobile axle torsion beam simultaneously, as modulus of compression etc. does not significantly decline, meet the requirement of auto assembly factory, and increase after rounding 45, automobile axle torsion beam does not increase with the cost of production of lining.

The installation with lining for the ease of automobile axle torsion beam simultaneously, the outer ring of inner sleeve 1 is provided with and is arranged with two flanges 11.The outer rim of inner sleeve 1 and outer sleeve 3 end faces, and the outer rim of inner sleeve 1 and outer sleeve 3 bottom surfaces is arranged with chamfering.

The second embodiment

Refer to Fig. 4 and Fig. 5, a kind of automobile axle torsion beam lining of the present utility model, comprises from inside to outside inner sleeve 1, bush body 2 and the outer sleeve 3 of socket successively, inner sleeve 1, bush body 2 and the overall sulfidization molding of outer sleeve 3.In conventional design, the hardness of inner sleeve 1 and outer sleeve 3 is greater than the hardness of bush body 2, and the degree of cure of inner sleeve 1 and outer sleeve 3 is higher than the hardness of bush body 2 in other words.

This enforcement and the first embodiment different are the different of stress dispersion structure.

In the present embodiment, stress dispersion structure on stress groove 4 is: the joint of left side 41 and outer side surface 43, the joint of right side 42 and outer side surface 43, be arranged with to outer sleeve 3 one side-prominent, the axially stress dispersion mouth 46 of penetration liner body 2, two stress dispersion mouths 46 are all connected as a single entity with stress groove 4, make whole stress groove 4 be crescent shaped.

The object of design is to disperse inner sleeve 1, bush body 2 and the suffered stress of outer sleeve 3 of automobile axle torsion beam lining like this, under identical stressing conditions, than the automobile axle torsion beam lining that there is no stress dispersion mouth 46, the automobile axle torsion beam that has increased stress dispersion mouth 46 by the stress decrease of bush inside 25%.Lining easy-rupturing not in vehicle traveling process for automobile axle torsion beam, working life, the mileage number that travels has increased by 60%, the Dynamic and static stiffness of lining for automobile axle torsion beam simultaneously, as modulus of compression etc. does not decline, meet the requirement of auto assembly factory, and increase after stress dispersion mouth 46, automobile axle torsion beam does not increase with the cost of production of lining.

Claims

1. an automobile axle torsion beam lining, comprise the inner sleeve (1), bush body (2) and the outer sleeve (3) that are from inside to outside socketed successively, described inner sleeve (1), described bush body (2) and the overall sulfidization molding of described outer sleeve (3), described bush body (2) is upper, is symmetrically distributed with two stress grooves (4) that axially run through described bush body (2); It is characterized in that:

Every described stress groove (4) is by left side (41), right side (42), (44) four faces of outer side surface (43) and inner side surface surround, the joint of wherein said left side (41) and described outer side surface (43), and described right side (42) are arranged with stress dispersion structure with the joint of described outer side surface (43).

2. a kind of automobile axle torsion beam lining according to claim 1, it is characterized in that: in every described stress groove (4), between the end face of the joint of described left side (41) and described outer side surface (43) and described bush body (2), between the bottom surface of the joint of described left side (41) and described outer side surface (43) and described bush body (2), between the end face of the joint of described right side (42) and described outer side surface (43) and described bush body (2), between the bottom surface of the joint of described right side (42) and described outer side surface (43) and described bush body (2), be equipped with rounding (44) as described stress dispersion structure.

3. a kind of automobile axle torsion beam lining according to claim 1, it is characterized in that: in every described stress groove (4), described left side (41) and the joint of described outer side surface (43) and the joint of described right side (42) and described outer side surface (43), be arranged with to described outer sleeve (3) side-prominent, axially run through the stress dispersion mouth (46) of described bush body (2), as described stress dispersion structure, described stress dispersion mouth (46) is connected as a single entity with described stress groove (4).

4. according to a kind of automobile axle torsion beam lining described in any one in claims 1 to 3, it is characterized in that: the hardness of described inner sleeve (1) and described outer sleeve (3) is greater than the hardness of described bush body (2).

5. according to a kind of automobile axle torsion beam lining described in any one in claims 1 to 3, it is characterized in that: the outer ring of described inner sleeve (1) is provided with and is arranged with two flanges (11).