CN1069746C

CN1069746C - Bearing bush

Info

Publication number: CN1069746C
Application number: CN97193627A
Authority: CN
Inventors: H·比特施库斯; G·思维尔特; J·雷德万兹; M·霍夫曼
Original assignee: BTR Antivibration Systems Germany GmbH
Current assignee: Trelleborg Holdings Breuberg GmbH
Priority date: 1996-02-16
Filing date: 1997-02-14
Publication date: 2001-08-15
Anticipated expiration: 2017-02-14
Also published as: DE19605859C2; BR9707542A; DE19605859A1; WO1997030297A1; CN1215458A

Abstract

The invention relates to a bearing bush, in particular for motor vehicles, the bearing bush comprising an inner pipe (11), an outer pipe (12) and an elastomer carrier member (13) disposed between the latter. The carrier member (13) comprises rib-like webs (18) extending in the radial direction. In order to attain a different rigidity ratio in the various load directions, resilient stud-like stops (19b, 20b) provided between the webs (18) comprise rear lining regions (16) which are formed on the outer pipe (12).

Description

Bearing sleeve

The present invention relates to a kind of bearing sleeve, more specifically, relate to a kind of bearing sleeve that is used for automobile, it comprises pipe in, an outer tube and an elastomeric bearings that is arranged between interior pipe and the outer tube, the rib shape disc that is characterized as radial directed of this load-bearing member.

These need satisfy different requirements with regard to it especially for the bearing sleeve on the automobile with regard to the rigidity of stand under load direction, therefore higher so that bear steady state loading along the rigidity of Z direction, and relatively poor along the rigidity of X and Y direction.

Therefore, the present invention is a purpose with the bearing sleeve that a kind of the above-mentioned type is provided, and wherein can change ratio of rigidity with method along different stand under load directions by plain mode.

In order to achieve this end, between each disc, be provided with wall rib shape (stud-shaped) elastic bolster guide spare according to the present invention, this stop member comprises the backsight district of configuration on outer tube.By changing the length or the cross section in backsight district, can the ratio of rigidity of bearing sleeve be adjusted to necessary requirement by simple mode and method.By means of the backsight district, can form and have the stop member that increases progressively stiffness characteristics.An elastic component floor is vulcanized in the backsight district of outer tube.

Various advantage of the present invention can be learnt from appended claims.

Outer tube advantageously is configured to the plastic part with whole backsight district.Outer tube for example can low-cost be made a kind of injection-molded plastic part.

Outer tube advantageously comprises the wall rib shape backsight district from the inboard radially outwardly projecting of outer tube, the inhomogeneous setting on the inner circumference of outer tube of wall rib shape backsight district.

In order to change ratio of rigidity, the radial length in wall rib shape backsight district can be different.In addition, wall rib shape backsight district cross section vertically can be different.

Preferably stop member is configured to the rigidity difference that makes along synthetic stand under load direction.Ratio of rigidity along Z, X, Y direction changes in a very wide scope.By bearing sleeve of the present invention, can be with ratio of rigidity Cz: Cx: Cr be changed to 1: 2: 3 from 1: 1: 1.

In order to compensate synthetic steady state loading and response to be installed, eccentric installation of interior pipe and/or stop member can be installed asymmetricly.

In order to improve the axial rigidity of load-bearing member, load-bearing member can comprise the compression piece that at least one is whole, more specifically is a telophragma.

Preferably, the shore hardness of elasticity disc and stop member is different.

In a preferred embodiment, load-bearing member comprises the disc that pipe in the supporting is set with X-shaped, and is provided with wall rib shape stop member with interior pipe between disc with separating certain interval.

Be that the basis describes the present invention in detail with the embodiment that illustrates in the accompanying drawing below, wherein:

Fig. 1 is the sectional drawing along Fig. 2 center line I-I;

Fig. 2 is the view of being seen along arrow II direction among Fig. 1; And

Fig. 3 is the load-deflection curve figure along different stand under load direction F1, F2, F3.

Bearing sleeve 10 illustrated in figures 1 and 2 comprise be configured to general hollow columnar in pipe 11, but comprise a plate shape end face part 17.In pipe 11 be bearing on the outer tube 12 by elastomeric bearings 13.Manage 11 the outside in load-bearing member 13 is vulcanized to and comprise

disc

18a, 18b, 18c, the 18d that is provided with

X-shaped.Be stop member

19a, 19b, 20a, 20b between

disc

18a, 18b, 18c, 18d, each stop member and carrier member 13 separate gap 14a, a 14b.

Each

stop member

19a, 19b, 20a, 20b are configured to flexible, below the main structure of

stop member

19a, 19b, 20a, 20b with reference to being described with the stop member 19b shown in the sectional drawing among Fig. 1.Stop member 19b has the elastomer skin 21 that is vulcanized to outer tube 12 inboards, and this outer tube 12 is configured to a plastic part.In the zone of stop member 18b, the outer tube of making injection-molded part comprises the backsight district, and the cross section in this backsight district is different along axially going up of bearing sleeve 10.On an end face part 22 of bearing sleeve 10, outer tube 12 only has smaller thickness in the zone of stop member 19b, and in contrast, the cross section in backsight district 16 increases at the middle part of bearing sleeve 10.Outer tube 12 ends in the zone of flanged ring 15, and this flanged ring 15 is radially outwards outstanding from the outside of outer tube 12.

Radial length or change bearing sleeve 10 cross section in axial direction by changing backsight district 16 can change the ratio of rigidity of bearing sleeve 10 along different stand under load directions by plain mode and method.And the rigidity of

stop member

19a, 19b, 20a, 20b can change by the material in backsight district, thereby, for example,, rigidity can be defined as along directions X less than along the Z direction by respective

design stop member

19a, 19b, 20a, 20b.This can be by plain mode and method when suitably designing stop member, more specifically realize when the backsight district 16 of respective design outer tube 12.

Fig. 3 illustrates the load-deflection curve figure to different stand under load directions, and characteristic F2 is corresponding to the Z direction, characteristic F1 corresponding to directions X characteristic F3 corresponding to the Y direction.Be arranged on

stop member

19a, 19b, the 20a of outer tube 12, the backsight district 16 in the 20b zone causes steep stiffness characteristics after deflection, therefore cause the respective stopping part higher increase progressively effect.

Because outer tube 12 is to be made of plastics, bearing sleeve 10 in light weight.In addition, etching problem can not take place on the outer tube 12 that is made of plastics.

Outer tube 12 at one end comprises from the outstanding flanged ring 15 of its outside vertical.Clearly visible by Fig. 1, flanged ring 15 is arranged to the plate shape end face part 17 of interior pipe 11 spaced apart, load-bearing member 13 extends along resulting intermediate portion 23, and in order to improve axial rigidity, load-bearing member 13 is provided with the annular telophragma 24 concentric with interior pipe 11 at intermediate portion 23.Telophragma 24 is vulcanized in the load-bearing member 13 in place.

Claims

1. bearing sleeve (10) that more specifically is used for automobile, it comprises: pipe (11), an outer tube (12) and an elastomeric bearings (13) that is arranged between this interior pipe (11) and this outer tube (12) in one, the rib shape disc (18) that is characterized as radial directed of this load-bearing member (13), it is characterized in that, be provided with wall rib shape elastic bolster guide spare (19a, 19b, 20a, 20b) between described disc (18), this stop member comprises the backsight district (16) of configuration on described outer tube (12).

2. bearing sleeve as claimed in claim 1 (10) is characterized in that, described outer tube (12) is configured to the plastic part with whole backsight district (16).

3. bearing sleeve as claimed in claim 1 or 2 (10) is characterized in that, described outer tube (12) comprises from the radially outstanding wall rib shape backsight district (16) of its internal diameter.

4. bearing sleeve as claimed in claim 3 (10) is characterized in that, the radial length difference in described wall rib shape backsight district (16).

5. as claim 3 or 4 described bearing sleeves (10), it is characterized in that described wall rib shape backsight district (16) cross section difference vertically.

6. as each described bearing sleeve (10) in the claim 1 to 5, it is characterized in that described stop member (19a, 19b, 20a, 20b) is configured to and makes rigidity along the synthetic stand under load direction difference that exists.

7. as each described bearing sleeve (10) in the claim 1 to 6, it is characterized in that eccentric setting of described interior pipe (11) and/or described stop member (19a, 19b, 20a, 20b) are provided with asymmetricly.

8. as each described bearing sleeve (10) in the claim 1 to 7, it is characterized in that described load-bearing member (13) comprises the compression piece that at least one is whole, more specifically is a telophragma (24), to be used to improve axial rigidity.

9. as each described bearing sleeve (10) in the claim 1 to 8, it is characterized in that described disc (18) is made by the shore hardness elastomeric material different with damping function with described stop member (19a, 19b, 20a, 20b).

10. as each described bearing sleeve (10) in the claim 1 to 9, it is characterized in that, described load-bearing member (13) comprise with X-shaped be provided with the supporting described in the pipe (11) disc (18), and between described disc (18) with described in the pipe (11) interval one gap be provided with wall rib shape stop member (19a, 19b, 20a, 20b) (14a, 14b).