The invention relates to the technical field of cranes, and discloses a cargo boom, a six-section telescopic boom and a crane. Wherein the cargo boom comprises a telescopic boom, a first contraction flexible cable, a first extension flexible cable, an oil cylinder and a locking mechanism, the oil cylinder is arranged in the telescopic boom, one end of the oil cylinder is connected with the second section of boom, the other end of the oil cylinder is connected with the third section of boom, the locking mechanism is arranged on the first section of boom, and in a locking state, the locking mechanism locks the first contraction flexible cable and/or the first extension flexible cable; the oil cylinder is suitable for driving the second section arm and the third section arm to stretch. According to the invention, only one oil cylinder needs to be arranged in the telescopic arm, so that the telescopic arm can selectively stretch out and draw back. And the dead weight and the cost of the whole crane boom are reduced while the suspended load performance of the crane boom is ensured.
本发明涉及起重机技术领域,公开了起重臂、六节伸缩臂及起重机。其中,起重臂包括伸缩臂、第一收缩柔索、第一伸出柔索、油缸和锁止机构,油缸设于伸缩臂内且一端与第二节臂连接,另一端与第三节臂连接,锁止机构设于第一节臂上,在锁止状态下,锁止机构锁紧第一收缩柔索和/或第一伸出柔索,油缸适于驱动第二节臂和第三节臂伸缩。本发明只需在伸缩臂内设置一个油缸,便可实现伸缩臂的可选择性伸缩。在确保起重臂吊载性能的同时,降低整套起重臂的自重和成本。
Cargo boom, six-section telescopic boom and crane
起重臂、六节伸缩臂及起重机
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
TELESCOPIC CRANE BOOM SECTION, TELESCOPICALLY EXTENSIBLE CRANE BOOM AND HYDRAULIC CRANE
European Patent Office | 2024
|Truss transition boom section, cargo boom boom and crane
European Patent Office | 2021
|Single-cylinder multi-section arm telescopic mechanism, cargo boom and crane
European Patent Office | 2022
|