The invention belongs to the technical field of cranes, and particularly relates to a crane stall self-locking device which comprises a steel cable, a rotating shaft, a first rotating disc, a first speed reduction assembly and a second speed reduction assembly, the rotating shaft is fixedly connected with the first rotating disc, the steel cable is fixedly connected and wound on the rotating shaft, the rotating shaft rotates to enable the steel cable to be wound on the rotating shaft, and then a hoisted object is hoisted. The first speed reduction assembly and the second speed reduction assembly can apply acting force to the first rotating disc, so that the rotating shaft stops rotating; the first speed reduction assembly applies first acting force to the rotating disc, the second speed reduction assembly applies second acting force to the rotating disc, the first acting force is constant, and the second acting force is increased or decreased according to the preset frequency so as to reduce the impact force to the steel cable during rotating shaft braking and prolong the service life of the steel cable.
本发明属起重机技术领域,特别是涉及一种起重机失速自锁装置,其包括钢索、转动轴、第一转动盘、第一减速组件和第二减速组件,转动轴与第一转动盘固接,钢索固接缠绕在转动轴上,转动轴转动以使钢索在转动轴上缠绕,进而吊装起吊装物,第一减速组件和第二减速组件能够对第一转动盘施加作用力,使转动轴停止转动;第一减速组件对转动盘施加第一作用力,第二减速组件对转动盘施加第二作用力,第一作用力恒定,第二作用力按照预设频率增加或减小,以减小转动轴制动时对钢索的冲击力,增加钢索的使用寿命。
Crane stall self-locking device
一种起重机失速自锁装置
2023-04-28
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
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