The invention provides a hydraulic control system for a winch, and belongs to the technical field of hydraulic pressure. The winch is used for driving the trailer wagon, and the hydraulic control system comprises a power pump set, a reversing valve, a hydraulic lock, a motor and a speed reduction control unit. An oil outlet of the power pump set is connected with an oil inlet of the reversing valve, an oil return opening of the reversing valve is connected with an oil tank, the speed reduction control unit is connected with the hydraulic lock, the motor and the reversing valve, and the speed reduction control unit is used for controlling the hydraulic lock, the motor and the reversing valve when the reversing valve cuts off an oil way between the power pump set and the motor. And the first oil port of the motor is communicated with the second oil port of the motor, and meanwhile the pressure of an oil outlet corresponding to the motor is gradually increased. According to the invention, flexible deceleration of the trailer wagon can be effectively realized.
本公开提供了一种用于绞车的液压控制系统,属于液压技术领域。所述绞车用于驱动牵引小车,所述液压控制系统包括动力泵组、换向阀、液压锁、马达和减速控制单元;所述动力泵组的出油口与所述换向阀的进油口相连,所述换向阀的回油口与油箱相连,所述减速控制单元分别与所述液压锁、所述马达和所述换向阀相连,所述减速控制单元用于在所述换向阀切断所述动力泵组与所述马达之间的油路时,将所述马达的第一油口和所述马达的第二油口导通,同时逐渐增加所述马达对应的出油口的压力。本公开可以有效实现牵引小车柔性减速。
Hydraulic control system for winch
用于绞车的液压控制系统
2024-07-26
Patent
Electronic Resource
Chinese
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