The telescopic cargo boom comprises a telescopic boom body, and a first connecting assembly is arranged on the telescopic boom body; the auxiliary arm is arranged on one side of the telescopic arm in parallel, the bottom of the auxiliary arm faces the top of the telescopic arm, the top of the auxiliary arm faces the bottom of the telescopic arm, the top of the telescopic arm is hinged to the bottom of the auxiliary arm through a connecting piece, and a second connecting assembly matched with the first connecting assembly is arranged on the auxiliary arm; the first connecting assembly and the second connecting assembly are detachably connected; in the working state, the auxiliary arm can rotate around the connecting piece hinged between the telescopic arm and the auxiliary arm, so that the auxiliary arm is located at the top of the telescopic arm and fixed, the center face of the fixed auxiliary arm coincides with the center face of the telescopic arm, and the telescopic arm can drive the auxiliary arm to move synchronously when stretching out and drawing back. And in the recovery state, the auxiliary arm is fixedly connected to one side of the telescopic arm. Only a unique rotation center is provided during the state switching of the fly jib, and the telescopic oil cylinder and the inhaul cable are protected during the running of the automobile crane.
本发明公开了一种伸缩式起重臂,包括伸缩臂,在伸缩臂上设置有第一连接组件;副臂,副臂平行设置于伸缩臂一侧,副臂的底部朝向伸缩臂的顶部,顶部朝向伸缩臂的底部,伸缩臂的顶部和副臂的底部之间通过连接件相铰接,在副臂上设置有与第一连接组件相配合的第二连接组件,第一连接组件和第二连接组件之间可拆卸连接;在工作状态时,副臂能够围绕伸缩臂和副臂之间相铰接的连接件转动,使得副臂位于伸缩臂的顶部并进行固定,且在固定后副臂的中心面与伸缩臂的中心面相互重合,伸缩臂伸缩时能够带动副臂同步移动;在回收状态时,副臂固定连接于伸缩臂的一侧。副臂状态切换时仅有唯一的旋转中心,且在汽车起重机行驶时对伸缩油缸和拉索具有保护作用。
Telescopic cargo boom and equipment thereof
一种伸缩式起重臂及其设备
2023-12-12
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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