The invention relates to a folding telescopic arm mechanism and an overhead working truck, and belongs to the field of working arms, the folding telescopic arm mechanism comprises a first arm, a second arm and a third arm, the third arm is of a telescopic arm structure, the third arm is hinged to the side of the front end of the second arm, and the tail end of the second arm is hinged to the front end of the first arm; a lifting cylinder is connected between the first arm and the second arm and used for controlling the second arm to rotate around a hinge shaft between the second arm and the first arm. An overturning cylinder is further connected between the second arm and the third arm, one end of the overturning cylinder is hinged to the second arm, the other end of the overturning cylinder is hinged to the third arm through a connecting rod structure, and the overturning cylinder is used for driving the third arm to rotate and overturn around a hinge shaft of the third arm and the second arm; the third arm can be overturned to the side of the second arm, so that the interference of a working head connected with the third arm on other structural components such as the first arm and a vehicle is avoided, and the occupied space after the telescopic arm is stored is greatly reduced.
本发明涉及一种折叠伸缩臂机构及高空作业车,属于工作臂领域,包括第一臂、第二臂、第三臂,其中第三臂为伸缩臂结构,第三臂铰接在第二臂的前端旁侧,第二臂的尾端铰接在第一臂的前端;第一臂与第二臂之间连接有举升缸,用于控制第二臂绕其与第一臂之间的铰接轴转动;第二臂与第三臂之间还连接有翻转缸,翻转缸一端与第二臂铰接,翻转缸另一端通过连杆结构与第三臂铰接,用于驱动第三臂绕其与第二臂的铰接轴转动、翻转;本发明能够实现第三臂能够翻转至位于第二臂的旁侧,从而避免第三臂所连工作头对其他结构部件如第一臂、车辆等的干扰,大大减小了伸缩臂收纳后的占用空间。
Folding telescopic arm mechanism and overhead working truck
一种折叠伸缩臂机构及高空作业车
2024-01-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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