The invention discloses a four-plate-hook variable-hook-distance lifting appliance which comprises a cross beam, shafts, plate hook variable-hook-distance mechanisms, plate hook keeping mechanisms and plate hook devices, and the four shafts are symmetrically arranged relative to the central axis of the cross beam; the two sets of plate hook variable-hook-distance mechanisms are symmetrically arranged on the two sides of the cross beam and comprise power sources, driving components, variable-hook-distance connecting rods and movable arms. Each movable arm comprises a first crank, a first barrel, a second crank and a second barrel. The four sets of plate hook devices are symmetrically arranged relative to the central axis of the cross beam and comprise nuts, bearings, lifting forks, plate hook shafts, plate hooks, shaft connecting rods, middle connecting rods for connecting the lifting fork connecting rods with the shaft connecting rods, the lifting fork connecting rods and second cranks to form a plate hook retaining mechanism of a parallel four-connecting-rod mechanism. The current situation that one crane can only lift tundishes or material boxes of one specification is changed, one crane can lift tundishes or material boxes of various specifications by changing the hook distance of the plate hooks, investment can be saved for iron and steel enterprises, and the technical blank of hook distance changing of a four-plate-hook lifting appliance is filled.
本发明公开了一种四板钩变钩距吊具,包括横梁、轴、板钩变钩距机构、板钩保持机构、板钩装置,四个轴相对于横梁的中心轴对称设置;两套板钩变钩距机构对称设置在横梁的两侧并包括动力源、驱动构件、变钩距连杆、活动臂,活动臂包括第一曲柄、第一筒体、第二曲柄、第二筒体;四套板钩装置相对于横梁的中心轴对称设置并包括螺母、轴承、吊叉、板钩轴、板钩,轴连杆、连接吊叉连杆与轴连杆的中间连杆、吊叉连杆及第二曲柄形成平行四连杆机构的板钩保持机构。本发明改变了一台起重机只能吊运一种规格的中间包或料箱的现状,通过改变板钩钩距,一台起重机可以吊运多种规格的中间包或料箱,能为钢铁企业节约投资,填补了四板钩吊具变钩距的技术空白。
Hook-distance-variable lifting appliance with four plate hooks
四板钩变钩距吊具
2022-04-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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