The invention belongs to the technical field of balance cranes, and particularly relates to an electric hydraulic power-assisted balance crane. The electric hydraulic power-assisted balance crane comprises a parallelogram connecting rod mechanism composed of a front arm, a large arm, a supporting arm and a connecting arm, the front arm can hook a heavy object, the parallelogram connecting rod mechanism is arranged on a bottom plate, and the bottom plate can be horizontally and rotationally arranged on a stand column; and the hinged point of the supporting arm and the connecting arm is connected with a piston rod of a transverse moving oil cylinder and can be driven by the transverse moving oil cylinder to move left and right, and the tail end of the large arm is connected with a piston rodof a lifting oil cylinder and can be driven by the lifting oil cylinder to ascend and descend. Through cooperation of the parallelogram connecting rod mechanism, the transverse moving oil cylinder and the lifting oil cylinder, lifting of the heavy object lifted by the front arm of the balance crane and moving of the horizontal position of the heavy object under the condition that the height of the heavy object is not changed are ingeniously completed. A balance weight and a hydraulic station are arranged on the bottom plate, no matter how the balance crane moves, the horizontal position and the angle of the bottom plate are not changed accordingly, stability is enhanced, and safety is improved.
本发明属于平衡吊技术领域,具体涉及一种电动液压助力平衡吊,包括由前臂、大臂、支撑臂和连接臂组成的平行四边形连杆机构,前臂可以吊钩重物,所述的平行四边形连杆机构设置在底板上,底板可水平转动设置在立柱上;支撑臂和连接臂的铰接点连接横移油缸的活塞杆,铰接点可由横移油缸驱动进行左右移动,大臂的末端连接升降油缸的活塞杆,大臂末端可由升降油缸驱动进行升降。通过一组平行四边形连杆机构、横移油缸和升降油缸配合,巧妙完成了平衡吊的前臂所吊重物的升降和重物高度不变的情况下重物水平位置的移动。配重和液压站设置在底板上,而不论平衡吊如何运动,底板的水平位置和角度均不随之变化,增强了稳定性,增加了安全性。
Electric hydraulic power-assisted balance crane
电动液压助力平衡吊
15.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Electric hydraulic power-assisted steering system and crane
Europäisches Patentamt | 2020
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