The invention discloses a cargo boom connecting device of small tower crane machinery. The cargo boom connecting device comprises a first connecting part with a concave cross section, a second connecting part with a convex cross section and a connecting pin, wherein the convex part of the second connecting part is inserted into the concave part of the first connecting part, and the connecting pinpenetrates through the first connecting part and the second connecting part at the same time. Through the mode that the concave-convex structure is matched with the connecting pin penetrating throughthe middle, the structure is more reliable, and connection and installation are convenient and easy.
一种小型塔式起重机械的起重臂连接装置,包括横截面呈“凹”字型的第一连接部、横截面呈“凸”字型的第二连接部和连接销,所述第二连接部凸起的部分插入第一连接部内凹的部分,连接销同时贯穿第一连接部和第二连接部。本发明通过凹凸型结构配合中间穿装连接销的方式,使得结构更加可靠,连接安装方便简单。
Cargo boom connecting device of small tower crane machinery
小型塔式起重机械的起重臂连接装置
2020-06-02
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Inter-section connecting structure of horizontal cantilever type cargo boom of tower crane
European Patent Office | 2021
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