The lifting assembly comprises a guide limiting piece and a winding drum, the inner side of the guide limiting piece is provided with a guide area and a limiting area, the guide area is adjacent to the limiting area, and the guide area is provided with a first spiral groove; the winding drum is arranged on the inner side of the guide limiting piece, a second spiral groove matched with the first spiral groove is formed in the periphery of the winding drum and used for containing a lifting piece, and the limiting area limits radial displacement of the lifting piece located in the second spiral groove. The first spiral groove and the second spiral groove are at least partially screwed together, when the winding drum rotates, the second spiral groove releases or withdraws the lifting piece, and the winding drum axially displaces in the guide limiting piece through cooperation of the first spiral groove and the second spiral groove. A lead screw structure is omitted, so that a driving component and a transmission component can be arranged in the winding drum, and the space utilization rate is increased.
本发明涉及一种提升组件及平衡吊,包括导向限位件和卷筒,所述导向限位件的内侧具有导向区域和限位区域,所述导向区域与所述限位区域相邻,所述导向区域设有第一螺旋槽;所述卷筒设置在所述导向限位件的内侧,所述卷筒的外周设有与所述第一螺旋槽适配的第二螺旋槽,所述第二螺旋槽用于放置提升件,所述限位区域限制位于所述第二螺旋槽内的提升件的径向位移,所述第一螺旋槽与所述第二螺旋槽至少部分旋合,当所述卷筒旋转时,所述第二螺旋槽释放或收回所述提升件,且通过所述第一螺旋槽、第二螺旋槽的配合使所述卷筒在所述导向限位件内轴向位移。本发明取消了丝杆结构,从而能够设置在所述卷筒内设置驱动部件及传动部件,提高了空间利用率。
Lifting assembly and balance crane
提升组件及平衡吊
2022-06-24
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
Tower crane lifting arm assembly structure, assembly method and tower crane
European Patent Office | 2015
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