Fatigue test bench for continuous reciprocating motion device

Abstract

The invention discloses a fatigue test bench for a continuous reciprocating motion device, and the test bench can achieve the simulation of the reciprocating motion stress of a device in real workingconditions, wherein the stress is a stepless adjustable stress. Moreover, the test bench can precisely measure the motion times and the motion stress. The test bench provided by the invention consistsof a tested device installation pedestal, a part fixing section bar, a tested device, a test device and pressure sensor flexible connection part, a pressure sensor, a pressure sensor and a double-enddouble-outlet hydraulic cylinder flexible connection part, a double-end double-outlet hydraulic cylinder installation pedestal, a double-end double-outlet hydraulic cylinder, a double-end double-outlet hydraulic cylinder and resistor ruler flexible connection part, a resistor ruler installation pedestal, a resistor ruler, a panel, a right connecting pipe, a right throttle valve, an oil tank, hydraulic oil, a left throttle valve and a left connecting pipe. The double-end double-outlet hydraulic cylinder is used for sucking a resistance generated by the hydraulic oil in the oil tank for replacing a load force in a motion process of the tested device, and the amplitude of the force can be adjusted through the adjustment of the left and right throttle valves.

Description

technical field [0001] The present invention relates to a fatigue testing system for devices, especially for devices with high-speed continuous reciprocating motion. Background technique [0002] Fatigue failure is one of the main reasons for the failure of mechanical parts and mechanical devices. According to statistics, more than 80% of mechanical device failures belong to fatigue failure, and there is no obvious abnormality before fatigue failure, so fatigue failure often occurs in an instant, which is likely to cause major accidents. At present, the loading method of the fatigue test bench of the continuous reciprocating motion device uses the method of hanging heavy objects to simulate the force. This method cannot truly simulate the force of the reciprocating motion of the device under real working conditions, and the adjustment of the load weight is relatively difficult. It is troublesome, and it is inconvenient to use the fatigue test, which makes the test efficienc...

AI Technical Summary

Problems solved by technology

According to statistics, more than 80% of mechanical device failures are due to fatigue damage, and there is no obvious abnormality before fatigue damage, so fatigue damage often occurs in an instant, which is likely to cause major accidents

The current loading method of the fatigue test bench of the continuous reciprocating motion device is to use the method of hanging heavy objects to simulate the force. This method cannot truly simulate the reciprocating force of the device under real working conditions, and the adjustment of the load weight is relatively difficult. Trouble, it is inconvenient to use for fatigue testing, which makes the testing efficiency low

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