The invention discloses a crane rotation brake control system, a crane and a control method in the technical field of engineering machinery. The control system comprises a rotation reversing valve, a rotation motor, a rotation brake, a reversing recognizer and a brake control valve, the rotary reversing valve is connected with the rotary motor and used for changing an oil inlet and outlet path of the rotary motor through reversing action; the reversing recognizer is arranged on the rotary reversing valve and used for recognizing the reversing state. The brake control valve is connected with the rotary brake and used for driving the rotary brake to act according to the reversing state; the rotary brake is arranged on the rotary motor and is used for starting or stopping braking the rotary motor; the control method comprises the steps that when the reversing recognizer recognizes that the rotary reversing valve reverses left and right, the rotary control valve is powered on, and the rotary brake is unlocked; during reversing reset, the rotation control valve is powered off, and the rotation brake is locked; the mechanical control type crane rotary brake can be controlled to be automatically opened and closed, and the rotary autorotation problem is solved.
本发明公开了工程机械技术领域的一种起重机回转制动控制系统、起重机及控制方法,其中控制系统包括:回转换向阀、回转马达、回转制动器、换向识别器以及制动控制阀;回转换向阀与回转马达连接,用于通过换向动作改变回转马达的进出油路;换向识别器设置于回转换向阀上,用于识别换向状态;制动控制阀与回转制动器连接,用于根据换向状态驱动回转制动器动作;回转制动器设置于回转马达上,用于对回转马达启动或关闭制动;控制方法包括:当换向识别器识别到回转换向阀为左右换向时,令回转控制阀得电,回转制动器解锁;换向复位时,令回转控制阀失电,回转制动器锁止;本发明能够控制机械操纵式起重机回转制动器自启闭,解决回转自转问题。
Crane rotation brake control system, crane and control method
一种起重机回转制动控制系统、起重机及控制方法
2025-02-18
Patent
Electronic Resource
Chinese
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