The invention provides a folding arm type crane, and belongs to the technical field of cranes. The folding arm type crane comprises a base, a horizontal arm, a vertical arm and a pressing assembly. The vertical arm comprises a plurality of vertical telescopic arms and a roller unit which are sequentially sleeved together from inside to outside, and the top end of the vertical telescopic arm located on the outermost layer is hinged to one end of the horizontal arm; the pressing assembly is connected with the multiple vertical telescopic arms and used for applying radial force to the connected vertical telescopic arms, so that when the first vertical telescopic arm and the second vertical telescopic arm slide relatively, the radial force is applied to the connected vertical telescopic arms. The rolling wheel unit is connected with the first vertical telescopic arm and the second vertical telescopic arm in an abutting mode. According to the invention, vibration can be reduced, and the control precision of the folding arm type crane is improved.
本公开提供了一种折臂式起重机,属于起重机技术领域。所述折臂式起重机包括基座、水平臂、竖直臂以及压紧组件;所述竖直臂包括依次从内向外套接在一起的多个竖直伸缩臂和滚轮单元,位于最外层的所述竖直伸缩臂的顶端与所述水平臂的一端铰接;所述压紧组件分别与所述多个竖直伸缩臂相连,所述压紧组件用于对所连接的所述竖直伸缩臂施加径向力,使得在所述第一竖直伸缩臂和所述第二竖直伸缩臂相对滑动时,所述滚轮单元分别与第一竖直伸缩臂和所述第二竖直伸缩臂抵接。本公开可以减小振动,提高折臂式起重机的控制精度。
Folding arm type crane
折臂式起重机
13.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |