The invention relates to the technical field of gantry cranes, in particular to a rotary lifting appliance of a gantry crane. Comprising a cross beam and further comprises a rotating assembly, the rotating assembly comprises a rotating block and a closing cover which are detachably installed, a transmission unit is arranged in the rotating block, and a plurality of rolling wheels are installed on the transmission unit; the hanging shaft comprises a shaft rod main body and an anti-falling convex block, and the multiple rolling wheels roll along the surface of the anti-falling convex block to achieve rotation of the rotating assembly; the angle scale is mounted on the hanger shaft and is positioned above the rotating component; the arranged rotating assembly rotates along the hanging shaft, the hanging shaft does not need to rotate, the transmission unit drives the rolling wheels to rotate, and sliding friction is converted into rolling friction; the problems of abrasion and shaking existing in rotation of a traditional hanger shaft can be effectively solved, the structure is small in friction effect and low in abrasion degree, and long-term stable rotation action can be kept easily; the arranged angle scale can cooperate with the rotating assembly to judge the rotating angle, rotating deviation caused by inertia in the rotating process is avoided, and the more accurate rotating angle can be obtained.
本发明涉及门吊技术领域,具体涉及一种门吊旋转吊具;包括横梁,还包括旋转组件,包括可拆卸安装的旋转块和闭合盖,旋转块内部设有传动单元,传动单元上安装有多个滚轮;吊轴,包括轴杆主体和防坠凸块,多个滚轮沿防坠凸块表面滚动实现旋转组件旋转;角度盘,安装在吊轴上并位于旋转组件上方处;设有的旋转组件沿吊轴转动,吊轴无需转动,传动单元驱动滚轮实现旋转,将滑动摩擦转换成滚动摩擦;能够有效避免传统吊轴转动存在的磨损晃动问题,该结构摩擦作用小,磨损程度低,有利于长效保持平稳旋转动作;设有的角度盘能够协同配合旋转组件判断转动角度,避免转动过程中在惯性作用下导致的旋转偏差,有利于获得更加准确的旋转角度。
Rotary lifting appliance of gantry crane
一种门吊旋转吊具
2024-10-29
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
European Patent Office | 2022
|