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Three-degree-of-freedom thermal fatigue testing device used for metal bellows of vehicle exhaust system

A technology of automobile exhaust system and metal bellows, which is applied in the field of thermal fatigue test equipment, and can solve the problems of unsuitable bellows thermal fatigue test and other problems

Inactive Publication Date: 2016-04-20
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they are not suitable for bellows thermal fatigue test

Method used

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  • Three-degree-of-freedom thermal fatigue testing device used for metal bellows of vehicle exhaust system
  • Three-degree-of-freedom thermal fatigue testing device used for metal bellows of vehicle exhaust system

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Experimental program
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Effect test

Embodiment Construction

[0010] The device of the present invention mainly includes three parts: a driving motor, a transmission mechanism and a clamping mechanism. The device can realize the combined movement of two or three directions while realizing the movement of the metal bellows in one direction.

[0011] The present invention is described in detail below in conjunction with accompanying drawing:

[0012] refer to figure 1 , The vibration mechanism of the present invention mainly includes a driving part, a transmission mechanism and a clamping mechanism. Overall structure connection: one end of the bellows (15) is placed on the V-block (13), clamped and fixed with the V-shaped block (14), and the other end is fixed on the V-block (21). The V block (13) is fixed on the workbench (12), the V block (21) is fixed on the workbench (20), and the distance between the V block (13) and the V block (21) can be changed by adjusting the fastening bolts, so as to achieve alignment. Corrugated pipes of di...

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Abstract

The invention discloses a three-degree-of-freedom thermal fatigue testing device used for a metal bellows of a vehicle exhaust system, and the three-degree-of-freedom thermal fatigue testing device belongs to the field of vehicle component performance detection. The three-degree-of-freedom thermal fatigue testing device is composed of driving motors, a transmission mechanism and a clamping mechanism. The three-degree-of-freedom thermal fatigue testing device achieves movement of the metal bellows in one direction, and can achieve combined movement in two or three directions. The integral structure of the three-degree-of-freedom thermal fatigue testing device is connected in ways of: both ends of the bellows are fixed on a vibration mechanism by means of V-shaped blocks, and the distance between the V-shaped blocks can be changed by adjusting fastening bolts, so as to achieve thermal fatigue tests on bellows of different sizes; the driving motors in three directions are fixed under a test bench; the transverse driving motor and the longitudinal driving motor are connected with crank wheels through couplers and drive sliding chute connecting rods and polished rods to move along brackets, such that transverse and axial movement of a vibration end of the bellows are achieved; and the vertical driving motor pushes the clamping mechanism to move along a vertical polished rod up and down through a crank rocker mechanism, thereby achieving vertical direction of the vibration end of the bellows.

Description

technical field [0001] The invention relates to a device for thermal fatigue test of automobile bellows, more specifically, it relates to a thermal fatigue test device capable of realizing independent and combined movements of metal bellows of automobiles in three directions. Background technique [0002] The metal bellows connect the hot and cold ends of the automobile exhaust system, which can effectively reduce the vibration and impact of the exhaust system caused or transmitted by the engine, body and ground, etc., and reduce the exhaust system caused by the relative displacement of the engine and the exhaust system. Even the vibration of the whole vehicle plays an important role in the vibration reduction and noise reduction of the automobile exhaust system. A car is a harsh, changeable environment and a moving object under load. The car exhaust system is in an extremely harsh environment of high temperature, high humidity, strong vibration, corrosion, and strong airflo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M7/06
CPCG01M13/00G01M7/06
Inventor 李绍松牛加飞谭佳伟王浩任张增帅郑顺航盛任李斌
Owner CHANGCHUN UNIV OF TECH
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