Axial load fatigue testing device and testing method thereof

Abstract

The invention relates to an axial load fatigue testing device in the technical field of auto parts and components manufacture. The axial load fatigue testing device comprises an eccentric wheel spindle assembly, a swing link assembly, a proximity switch, a bracket, a length sensor, a box body and a box basket. The invention is suitable for an axial fatigue test of a flywheel web plate stamping piece which is subjected to an adjustable load with cyclic stress in room-temperature air; and the frequency for the test can be selected from a range of 10-30 Hz. A testing method comprises the steps: a motor is started; when a big and a small belt wheels with certain revolution speed drive the eccentric wheel spindle assembly to rotate, the swing link assembly and a connecting bar freely operate in a linear bearing up and down; a certain load is applied to a piece to be tested (according to the requirement of a modeling test) with a certain loading frequency; and a back and forth cyclic fatigue test is carried out to finally examine whether the piece to be tested satisfies with relevant requirements of an axial load fatigue test or not.

Description

technical field [0001] The invention relates to a device and a method in the technical field of auto parts manufacturing, in particular to an axial load fatigue test device and a test method thereof. Background technique [0002] At present, domestic fatigue tests on automatic transmission flywheels are mainly carried out in some university test centers or some foreign test institutions. However, since the test equipment of these test institutions is not used for automobile flywheels, the price of the equipment and the test cost are It is very expensive, and it is often necessary to adjust the workbench of the equipment according to the characteristics of the test piece during the test, and it is not specially designed for the flywheel. [0003] After searching the existing technology, it is found that Chinese patent application number 201010297385.4 records a "new axial fatigue testing machine". This technology is suitable for an axial fatigue testing machine for automobile...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic fatigue tests on automatic transmission flywheels are mainly carried out in some university test centers or some foreign test institutions. However, since the test equipment of these test institutions is not used for automobile flywheels, the price of the equipment and the test cost are Very expensive, and it is often necessary to adjust the workbench of the equipment according to the characteristics of the test piece during the test, and it is not specially designed for the flywheel

[0003] After searching the existing technology, it is found that Chinese patent application number 201010297385.4 records a "new axial fatigue testing machine". This technology is suitable for an axial fatigue testing machine for automobile thrust rods. The compression of the product is realized by the reciprocating motion of the piston rod, the applied load is constant and the frequency is only 1Hz, but the adaptability of this technology is relatively narrow and cannot be applied to a wider vibration frequency range

Images