Deficiencies of the pulsation fatigue tester in axle performance testing

1,by observing the pointer pressure gauge manually adjust the relief valve to set the loading load - can not accurately set the upper and lower limits of fatigue loading load, loading load deviation is conservatively estimated to be at least ± 10%.

2, There is no force feedback, completely open-loop control - low control accuracy, can not be uniformly loaded.

3,In the static test, it completely relies on manual control.

4, the piston stroke is very small, completely unable to meet the axle fatigue test when the axle body deformation requirements.

5,Due to the limitations of structure and principle, the maximum loading load is small, especially in the axle strength test, it can not meet the requirements of the test loading load.

6,product aging, even if the external automatic measurement part, can not form a perfect overall system.