Pump-controlled power recovery hydraulic control system of hydraulic cylinder testing test stand
A technology of hydraulic control system and hydraulic cylinder, which is used in fluid pressure actuation system testing, fluid pressure actuation system components, and fluid pressure actuation devices, etc., can solve problems such as non-recovery of energy, large heat generation, and low recovery rate. , to achieve the effect of reducing the cost of the test device, reducing heat generation, and high transfer efficiency
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[0022] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0023] see figure 1 , the main pump motor, the main pump, and the loading motor are coaxially mechanically connected, the main pump motor drives the main pump, the high-pressure oil output by the main pump enters the rodless chamber of the hydraulic cylinder under test, the hydraulic cylinder under test drives the loading hydraulic cylinder to move, and the force sensor The feedback signal is compared with the given loading force signal, the oil pump is controlled to control the output torque and rotation angle of the loading motor to control the pressure of the corresponding chamber of the loading hydraulic cylinder, and the function of controlling the loading force is realized, and part of the power of the loading hydraulic cylinder is recovered to the loading motor. , the loading motor drives the main pump through mechanical transmission, and the power reciprocates...
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