System and method for controlling hydraulic tension of straight-pull cold rolling experiment machine
A tension control and hydraulic tension technology, applied in tension/pressure control, fluid pressure actuating devices, mechanical equipment, etc., can solve the difficulty, uncertainty, and lack of robustness in high-precision prediction of forward slip rate and rear slip rate. Strong and other issues
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[0062] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0063] Such as figure 1 As shown, a hydraulic tension control system for a straight-drawn cold rolling test machine includes a left tension hydraulic cylinder 1, a right tension hydraulic cylinder 2, a hydraulic pump 3, a constant back pressure control unit I, a left tension control unit II and a right tension control Unit III;
[0064] The oil inlet K1 of the constant back pressure control unit I communicates with the oil outlet Pp of the hydraulic pump 3, and the oil return port K2 of the constant back pressure control unit I communicates with the oil supply tank of the hydraulic pump 3; The constant back pressure control unit I is also provided with a first pressure measurement port K3 and a second pressure measurement port K4. A first pressure gauge 4 is connected to the first pressure measurement port K3, and a second pressure measurement port K4 is...
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