The invention relates to a three-degree-of-freedom folding mechanical arm and a crane. The three-degree-of-freedom folding mechanical arm comprises a variable-amplitude cylinder, a base, a lower folding arm, an upper folding arm and a basic arm, wherein the base, the lower folding arm, the upper folding arm and the basic arm are rotationally connected in sequence. The variable-amplitude cylinder comprises a lower variable-amplitude cylinder body, an upper variable-amplitude cylinder body and a main variable-amplitude cylinder body, the two ends of the lower variable-amplitude cylinder body are hinged to the base and the lower folding arm correspondingly, the two ends of the main variable-amplitude cylinder body are hinged to the base and the basic arm correspondingly, and the two ends of the upper variable-amplitude cylinder body are hinged to the upper folding arm and the basic arm correspondingly. According to the three-degree-of-freedom folding mechanical arm, three-degree-of-freedom movement of the basic arm in the vertical plane can be controlled, and the crane provided with the mechanical arm can achieve small-height, large-cantilever and heavy-load hoisting.
本发明涉及一种三自由度折叠机械臂及吊车。三自由度折叠机械臂,包括变幅缸和依次转动相连的基座、下折臂、上折臂、基本臂,变幅缸包括下变幅缸、上变幅缸和主变幅缸,下变幅缸两端分别与基座和下折臂铰接,主变幅缸两端分别与基座和基本臂铰接,上变幅缸两端分别与上折臂和基本臂铰接。三自由度折叠机械臂能实现控制基本臂在竖直面平面内的三自由度运动,设置有该机械臂的吊车,能实现低高度、大悬臂、起吊重载。
Three-degree-of-freedom folding mechanical arm and crane
三自由度折叠机械臂及吊车
2021-08-13
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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