The invention discloses a hydraulic leveling device, a hydraulic leveling method and an aerial work platform, and relates to the field of hydraulic control. The device comprises an electromagnetic reversing valve, a first two-way balance valve, a second two-way balance valve, a first leveling oil cylinder, a second leveling oil cylinder, a controller, a shuttle valve, a first electromagnetic unloading valve and a first pressure sensor. A first port and a second port of the shuttle valve are respectively connected with a second port and a third port of the second bidirectional balance valve, and a third port of the shuttle valve is connected with the oil return tank through the first electromagnetic unloading valve; the first pressure sensor is arranged on a pipeline between the shuttle valve and the first electromagnetic unloading valve and is used for detecting first pressure in the pipeline; and the controller is used for controlling the first electromagnetic unloading valve to be powered on and powered off according to the first pressure when amplitude variation operation is started and the initial state of the working platform is an inclined state. The problem that structural parts are damaged due to high pressure between the first leveling oil cylinder and the second leveling oil cylinder is solved.
本发明公开了一种液压调平装置、液压调平方法及高空作业平台,涉及液压控制领域。所述装置包括电磁换向阀、第一双向平衡阀、第二双向平衡阀、第一调平油缸、第二调平油缸、控制器、梭阀、第一电磁卸荷阀和第一压力传感器;所述梭阀的第一口和第二口分别与第二双向平衡阀的第二口和第三口连接,所述梭阀的第三口通过第一电磁卸荷阀与回油箱连接;所述第一压力传感器设于梭阀与第一电磁卸荷阀之间的管路上且用于检测管路内的第一压力;所述控制器用于在开始变幅操作且工作平台的初始状态为倾斜状态时,根据第一压力控制第一电磁卸荷阀得失电。本发明避免了第一调平油缸与第二调平油缸之间的高压导致结构件损坏的问题。
Hydraulic leveling device, hydraulic leveling method and aerial work platform
液压调平装置、液压调平方法及高空作业平台
2025-03-07
Patent
Electronic Resource
Chinese
IPC: | 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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
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