Constant tension control device of hydraulic winch
A control device and hydraulic winch technology, applied in the hydraulic field, can solve the problems of poor safety and stability, low control precision, complex structure, etc., and achieve the effect of reducing damage
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[0014] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0015] Such as figure 1 As shown, a hydraulic winch constant tension control device of the present invention, its electro-hydraulic control system includes: oil tank (1), power pump group (2), electromagnetic reversing valve (3), hydraulic lock (4, 14), pressure Sensor (5, 13), motor safety valve (6), hydraulic motor (7), winch (8), cable arranging device (9), tension sensor (10), load (11), PLC controller (12), One-way throttle valve (15), electro-hydraulic proportional relief valve (16), cooling valve (17); the oil outlet of the power pump set (2) is connected to the solenoid directional valve (3) the oil inlet, solenoid directional valve The oil outlets a and b are respectively connected to the hydraulic lock (4) and the one-way throttle valve (15), the oil return port of the solenoid directional valve is connected to the oil inlet of the elec...
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