The invention relates to an on-load large-range lifting hoisting mechanism and a crane. The on-load large-range lifting hoisting mechanism comprises a folding arm cylinder, a variable-amplitude cylinder, a base, a folding arm and a basic arm, the base, the folding arm and the basic arm are sequentially hinged, the two ends of the folding arm cylinder are hinged to the base and the folding arm respectively, and the two ends of the variable-amplitude cylinder are hinged to the base and the basic arm respectively. The invention relates to an on-load large-range lifting crane which comprises the on-load large-range lifting hoisting mechanism. In the pitching process of the basic arm, the variable-amplitude cylinder is provided with a larger power arm, the included angle between the folding arm and the variable-amplitude cylinder is small, the output force of the folding arm cylinder and the variable-amplitude cylinder is small, and large-range lifting with loads can be achieved.
本发明涉及一种带载大范围升降的吊装机构及吊车。一种带载大范围升降的吊装机构,包括折臂缸、变幅缸、依次铰接的基座、折臂和基本臂,折臂缸两端分别与基座和折臂铰接,变幅缸两端分别与基座和基本臂铰接。一种带载大范围升降的吊车,包括带载大范围升降的吊装机构。本发明基本臂俯仰过程变幅缸均有较大的动力臂,折臂与变幅缸夹角小,折臂缸和变幅缸出力小,可以实现带载大范围升降。
On-load large-range lifting hoisting mechanism and crane
一种带载大范围升降的吊装机构及吊车
2021-11-16
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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