The invention provides an auxiliary folding fly jib retracting and releasing device, a folding fly jib assembly and a crane, and relates to the technical field of cranes, the auxiliary folding fly jib retracting and releasing device comprises a connecting beam, a roller mounting seat, a first roller and a second roller, the connecting beam is used for being connected with a truss arm of a fly jib, and one end of the roller mounting seat is rotationally connected with the connecting beam; the other end of the roller mounting seat is connected with a first roller and a second roller along two sides of the rotating direction respectively, and the first roller and the second roller are used for rolling along the fly jib bracket. According to the auxiliary folding and unfolding device for the folding fly jib, the roller mounting base can rotate around the first axis relative to the truss arm, the horizontal height of the first roller and the horizontal height of the second roller are adjusted, so that the first roller and the second roller can make contact with the fly jib bracket all the time, overturning torque is eliminated, and folding stability is better.
本发明提供了一种折叠副臂辅助收放装置、折叠副臂组件及起重机,涉及起重机技术领域,所述折叠副臂辅助收放装置包括连接梁、滚轮安装座、第一滚轮及第二滚轮,连接梁用于与副臂的桁架臂连接,滚轮安装座的一端与连接梁转动连接,滚轮安装座的另一端沿转动方向的两侧分别与第一滚轮及第二滚轮连接,第一滚轮及第二滚轮用于沿副臂托架滚动。本发明的折叠副臂辅助收放装置,滚轮安装座可相对桁架臂绕第一轴线转动,调整第一滚轮和第二滚轮的水平高度,使得第一滚轮、第二滚轮始终能够与副臂托架接触,消除翻转力矩,折叠平稳性更佳。
Auxiliary folding and unfolding device for folding fly jib, folding fly jib assembly and crane
一种折叠副臂辅助收放装置、折叠副臂组件及起重机
28.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Folding arm of folding arm crane and folding arm crane
Europäisches Patentamt | 2024
|Europäisches Patentamt | 2025
|