The invention relates to the technical field of engineering machinery, in particular to a pull plate assembly, a superlift device and a crane. The pull plate assembly comprises a first pull plate, a second pull plate and an adjusting mechanism; one end of the first pull plate is movably connected with one end of the second pull plate and used for enabling the first pull plate to move with at leasttwo degrees of freedom relative to the second pull plate; the adjusting mechanism is used for enabling the length direction of the first pull plate to deflect the superlift device relative to the length direction of the second pull plate, and the superlift device comprises a superlift mast and the pull plate assembly; the pull plate assembly can be deployed or stowed with the superlift mast; thecrane comprises a crane boom and the superlift device; and one end of the pull plate assembly is connected with the crane boom, and the other end of the pull plate assembly is connected with the superlift mast. According to the pull plate assembly, the superlift device and the crane, the interference of torsion on the superlift mast can be reduced or avoided.
本发明涉及工程机械技术领域,尤其是涉及一种拉板组件、超起装置及起重机。拉板组件,其包括第一拉板、第二拉板和调节机构;第一拉板的一端与第二拉板的一端活动连接,用于使第一拉板能够相对于第二拉板至少具有两个自由度的运动;调节机构用于使第一拉板的长度方向能够相对于第二拉板的长度方向发生偏转超起装置,超起装置包括超起桅杆及所述的拉板组件;所述拉板组件能够随着所述超起桅杆一起展开或收起。起重机包括起重臂及所述的超起装置;所述拉板组件的一端与所述起重臂相连接,所述拉板组件的另一端与所述超起桅杆相连接。本发明能够减少或避免超起桅杆受到扭力的干扰。
Pull plate assembly, superlift device and crane
拉板组件、超起装置及起重机
2020-09-22
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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