The invention discloses a fly jib mechanism of a crane and the crane, and relates to the technical field of cranes, the fly jib mechanism comprises a fly jib fixed section, a fly jib rotating section and a variable amplitude assembly; two ends of the auxiliary arm rotating section are respectively a hinged end and a free end; the variable-amplitude assembly comprises a portal, a pull plate and a pull rod, the bottom of the portal is hinged to the top of the auxiliary arm rotating section, and the two ends of the pull rod are hinged to the top and the free end of the portal respectively; the pulling plate comprises a first pulling plate and a second pulling plate; the two ends of the first pulling plate are a first end and a second end respectively, and a plurality of adjusting positions which are sequentially distributed in the direction from the first end to the second end are formed on the first pulling plate; the two ends of the second pulling plate are the third end and the fourth end respectively, the third end can be fixed to any adjusting position, one of the first end and the fourth end is hinged to the auxiliary arm fixing section, and the other end is hinged to the top of the portal. The angle of the rotating section of the fly jib is adjusted, the process is simple and convenient, the risk of deformation and instability of the rotating section of the fly jib is reduced, and the safety is high.
本发明公开了一种起重机的副臂机构和起重机,涉及起重机技术领域,其中,副臂机构包括副臂固定段、副臂旋转段和变幅组件;副臂旋转段的两端分别为铰接端和自由端;变幅组件包括门架、拉板和拉杆,门架的底部铰接于副臂旋转段的顶部,拉杆的两端分别铰接于门架的顶部和自由端;拉板包括第一拉板和第二拉板;第一拉板的两端分别为第一端和第二端,第一拉板上形成有多个沿第一端至第二端的方向依次分布的调节位;第二拉板的两端分别为第三端和第四端,第三端能与任一调节位固定,第一端和第四端中的一者铰接于副臂固定段,另一者铰接于门架的顶部。本发明对副臂旋转段的角度调节,过程简单方便,且减小了副臂旋转段变形失稳的风险,安全性高。
Auxiliary arm mechanism of crane and crane
起重机的副臂机构和起重机
15.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Auxiliary device for a crane and crane comprising said auxiliary device
Europäisches Patentamt | 2015
|Auxiliary device for a crane and crane comprising said auxiliary device
Europäisches Patentamt | 2018
|AUXILIARY DEVICE FOR A CRANE AND CRANE COMPRISING SAID AUXILIARY DEVICE
Europäisches Patentamt | 2019
|