The invention belongs to the technical field of overhead working trucks, and discloses a hydraulic leveling device, a hydraulic leveling method and an overhead working truck. A first axle pipeline of the hydraulic leveling device is simultaneously connected with a rod cavity of a first leveling oil cylinder and a rodless cavity of a second leveling oil cylinder; the second axle pipeline is connected with a rodless cavity of the first leveling oil cylinder and a rod cavity of the second leveling oil cylinder at the same time, the electromagnetic control valve set is connected with the first axle pipeline, the second axle pipeline, the oil supply pipeline and the oil return pipeline at the same time, and the electromagnetic control valve set has a communication state and a disconnection state. The first axle pipeline and the second axle pipeline are both connected with the oil supply pipeline, at the moment, the chassis can be automatically leveled, the chassis leveling device is suitable for the situation that the chassis leveling requirement is not high, and frequent starting and stopping of an electromagnetic valve and an oil cylinder are avoided; when the electromagnetic control valve set is in a disconnected state, the first axle pipeline and the second axle pipeline are both connected with the oil return pipeline, and automatic leveling is not carried out any more.
本发明属于高空作业车技术领域,公开了液压调平装置、液压调平方法及高空作业车,液压调平装置的第一车桥管路同时连接第一调平油缸的有杆腔以及第二调平油缸的无杆腔,第二车桥管路同时连接第一调平油缸的无杆腔以及第二调平油缸的有杆腔,电磁控制阀组同时连接第一车桥管路、第二车桥管路、供油管路以及回油管路,电磁控制阀组具有连通状态以及断开状态,当电磁控制阀组处于连通状态时,第一车桥管路以及第二车桥管路均与供油管路连接,此时底盘可自动调平,适用于底盘调平要求不高的情形,避免电磁阀以及油缸频繁启停;当电磁控制阀组处于断开状态时,第一车桥管路以及第二车桥管路均与回油管路连接,不再进行自动调平。
Hydraulic leveling device, hydraulic leveling method and overhead working truck
液压调平装置、液压调平方法及高空作业车
2024-04-26
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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