Dual- differential circuit of hydraulic press
A double differential and hydraulic press technology, which is applied to presses, fluid pressure actuators, mechanical equipment, etc., can solve the problems of high manufacturing costs
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[0012] The double differential circuit of the hydraulic machine of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0013] Such as figure 1 As mentioned above, the double differential circuit of the hydraulic press of the present invention includes the oil cylinder 3, the oil pump 1 and the oil tank 5, the solenoid valve 2 and the differential valve 4, the oil cylinder 3 is vertically arranged, the lower cavity of the oil cylinder 3 is connected with the oil pump 1 through the oil pipe, and the oil pump 1 passes through Oil pipe links to each other with oil tank 5. The differential valve 4 has a first oil outlet A, a second oil outlet B1 and a control port X, and the solenoid valve 2 has an oil inlet P, an oil return port T and a third oil outlet B2. The first oil outlet A of the differential valve 4 is connected to the upper chamber of the oil cylinder 3 through the oil pipe, the second oil outlet B1 of the dif...
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