The proportional brake rotation control hydraulic system comprises a closed pump, a rotation motor is connected between an oil port A and an oil port B of the closed pump, the rotation motor is controlled by a rotation proportional brake, and the rotation proportional brake is connected with a proportional brake control valve; the proportional brake control valve is used for providing continuously variable brake pressure for the rotary proportional brake, and the rotary proportional brake is used for providing continuously variable brake torque for the rotary motor. According to the technical scheme, the problems of large impact and obvious shaking at the moment of rotation starting and stopping are solved; a rotary proportional brake is adopted, continuously-changing torque can be generated, and braking is stable and free of impact.
本发明公开了一种比例制动回转控制液压系统及起重机,包括闭式泵,所述闭式泵的油口A和油口B之间连接有回转马达,回转马达受回转比例制动器控制,回转比例制动器与比例制动器控制阀连接;所述比例制动器控制阀用于向回转比例制动器提供连续可变的制动压力,回转比例制动器用于向回转马达提供连续可变的制动扭矩。本发明的技术方案解决了回转启停瞬间冲击大、晃动明显问题;采用回转比例制动器,能够产生连续变化扭矩,制动平稳无冲击。
Proportional braking rotation control hydraulic system and crane
一种比例制动回转控制液压系统及起重机
2024-05-03
Patent
Electronic Resource
Chinese
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