The invention relates to a method for releasing rotary braking of rotary construction machinery. The construction machinery comprises a hydraulic lock main switch; a rotation operation handle; the rotary motor is used for driving an upper vehicle body of the engineering machinery to rotate relative to a lower vehicle body; the controller is electrically connected with the hydraulic lock main switch so as to receive a signal from the hydraulic lock main switch, is electrically connected with the rotary operation handle so as to receive a position signal from the rotary operation handle, and is electrically connected with the rotary motor so as to send a rotary brake release signal to the rotary motor; the method comprises the steps of judging whether the hydraulic lock is unlocked; judging whether the engineering machinery works on a slope or on a flat ground; judging whether a rotary operation handle is in a neutral position or not, and when it is judged that the engineering machine conducts slope operation, releasing rotary braking of a rotary motor when the hydraulic lock is released and the rotary operation handle is not in the neutral position; and when the hydraulic lock is not released or the rotary operation handle is in the middle position, the rotary motor is kept in a rotary braking state.
本发明涉及解除回转式工程机械的回转制动的方法,工程机械包括:液压锁总开关;回转操作手柄;回转马达,用于驱动工程机械的上车体相对于下车体进行回转运动;控制器,其与液压锁总开关电连接以接收来自液压锁总开关的信号,与回转操作手柄电连接以接收来自回转操作手柄的位置信号,并且与回转马达电连接以便向回转马达发送回转制动解除信号;方法包括:判断液压锁是否被解除;判断工程机械是在进行斜坡作业还是平地作业;判断回转操作手柄是否处在中位,当判断工程机械在进行斜坡作业时:当液压锁被解除并且回转操作手柄不处在中位时,解除回转马达的回转制动;当液压锁未被解除或者回转操作手柄处在中位时,保持回转马达处于回转制动状态。
Rotary brake releasing method, rotary hydraulic system and rotary engineering machinery
回转制动解除方法、回转液压系统及回转式工程机械
2022-05-06
Patent
Elektronische Ressource
Chinesisch
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / E02F Baggern , DREDGING |
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