CN201732026U

CN201732026U - Three-channel fatigue testing device

Info

Publication number: CN201732026U
Application number: CN2010202902727U
Authority: CN
Inventors: 冯战勤; 赵韶剑; 吴向延
Original assignee: Jianxin Zhaos Group Corp
Current assignee: Jianxin Zhaos Group Corp
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2011-02-02
Anticipated expiration: 2020-08-13

Abstract

The utility model relates to a testing device for vehicle parts, in particular to a three-channel fatigue testing device for a rubber bushing. The three-channel fatigue testing device comprises a bearing seat with a bearing, a radial loading U-shaped support, a test fixture and loading ball hinges. A supporting shaft with a square hole is arranged in the bearing. The radial loading U-shaped support is installed on the test fixture. An axial loading connecting ball hinge and a radial loading connecting ball hinge are respectively arranged on the two perpendicular surfaces of the radial loading U-shaped support. The three-channel fatigue testing device additionally comprises two axial clamping U-shaped supports which can tightly fix the axial direction of the test fixture. The axial clamping U-shaped supports are installed on the supporting shaft with the square hole through a connecting plate with a square shaft. The device can realize the radial loading, the axial loading and the axial rotation loading of the rubber bushing or hinges and can more closely and really reflect the stress state of the rubber bushing.

Description

The triple channel fatigue experimental device

Technical field

The utility model relates to a kind of proving installation of automobile-used part, refers in particular to a kind of rubber bushing triple channel fatigue experimental device that is used for.

Background technology

Rubber bushing is in the vehicle practical set is used, and stressed is a plurality of sides; Most rubber bushing all adopts the mode of both direction two passages when carrying out testing fatigue at present, and a kind of is radial load and axial torsion combination, or radial load and conical pendulm combination; The situation of this and the actual use of rubber bushing is variant, and test findings can not reflect actual state really.

The utility model content

In order to overcome the above problems, the utility model provides a kind of triple channel fatigue experimental device that is used for testing rubber lining or hinge, makes the more approaching actual behaviour in service of force-bearing situation of rubber hinge, the fatigue lifetime that can reflect rubber hinge more really.

A kind of triple channel fatigue experimental device, comprise bearing seat, radial loaded U type support and the experiment anchor clamps that are provided with bearing and load the ball strand, be provided with the back shaft of band square hole in the bearing, radial loaded U type support is installed on the experiment anchor clamps, being respectively equipped with axial loading on vertical two faces of radial loaded U type support connects the ball strand and is connected ball with radial loaded and twists, also comprise two the axial U of clamping type supports that the axial restraint of experiment anchor clamps is tight, axially clamp U type support and be installed on the back shaft of band square hole by the web joint of being with square shaft.

Further, axially load the ball strand by on the axial line slideway of being fixed on of load bar, radial loaded ball strand is connected on the radial alignment guide rail.

The utility model can be realized rubber bushing or hinge are carried out radial loaded, axially load, and axially rotation loads the stress of more approaching real reflection rubber bushing.

Description of drawings

Fig. 1 is the utility model cross-sectional view;

Fig. 2 is the utility model structural representation.

Embodiment

A kind of triple channel fatigue experimental device, comprise the bearing seat 1 that is provided with bearing 2, radial loaded U type support 11 and experiment anchor clamps 12 and loading ball strand 9-1,9-2, be provided with the back shaft 7 of band square hole 13 in the bearing 2, radial loaded U type support 11 is installed on the experiment anchor clamps 12, being respectively equipped with axial loading on vertical two faces of radial loaded U type support 11 connects ball strand 9-1 and is connected ball with radial loaded and twists 9-2, also comprise two the axial U of clamping type supports 5 that the axial restraint of experiment anchor clamps 12 is tight, axially clamp U type support 5 and be installed on the back shaft 7 of band square hole 13 by the web joint 6 of being with square shaft 1414.Axially load ball strand 9-1 by on the axial line slideway 10-1 of being fixed on of load bar 8, radial loaded ball strand 9-1 is connected on the radial alignment guide rail 10-2.

The installation method of rubber bushing hinge triple channel fatigue test device:

1. with in the rubber bushing hinge indentation test anchor clamps 12;

2. the web joint 6 with two band square shafts 1414 that axially clamp U type supports 5 and both sides is tight with the axial restraint of rubber bushing hinge, so that can axially apply turning moment M;

3. tape spool is held 2 bearing seat 1, be fixed on and fix an end on the test platform earlier;

4. the square shaft 1414 of the workpiece that step 2 is assembled is put into the back shaft 7 of band square hole 13;

5. in the square shaft 1414 of the opposite side of the workpiece that the support sleeve of the bearing seat assembly of an other side is assembled to step 2; And bearing support block fixed;

6. radial loaded U type support 11 is connected to the rubber bushing hinge in the radial direction, so that can load at products radial;

7. with load bar 8 is fixed on the axial loading ball strand 9-1, and other end and line slideway 10-1 link together, and realize axially adding load;

8. line slideway 10-2 is connected ball strand 9-2 with radial loaded and links together, and fix realization radially loading the rubber bushing hinge;

9. connect rotation power-assist cylinder in a side of the supporting base that tape spool holds, carry out axial rotatablely moving, respectively at line slideway 10-1, the opposite side of 10-2 connects goes up rectilinear motion power-assist cylinder, realizes the radial and axial loading of rubber bushing.

In this test unit when using two to connect the balls strand and be implemented in radial loaded simultaneously can axially load and separately displacement unaffected.

Claims

1. triple channel fatigue experimental device, it is characterized in that, comprise the bearing seat (1) that is provided with bearing (2), radial loaded U type support (11) and experiment anchor clamps (12) and loading ball strand (9-1,9-2), be provided with the back shaft (7) of band square hole (13) in the bearing (2), radial loaded U type support (11) is installed on the experiment anchor clamps (12), (be respectively equipped with axial loading on 11 vertical two faces connects ball strand (9-1) and is connected ball with radial loaded and twists (9-2) radial loaded U type support, also comprise two axial U type supports (5) that clamp that the axial restraint of experiment anchor clamps (12) is tight, axially clamp U type support (5) and be installed on the back shaft (7) of band square hole (13) by the web joint (6) of being with square shaft (14).

2. triple channel fatigue experimental device according to claim 1 is characterized in that: axially load ball strand (9-1) by on the axial line slideway of being fixed on of load bar 8 (10-1), radial loaded ball strand (9-1) is connected on the radial alignment guide rail (10-2).