The invention belongs to the technical field of transmission of mine hoists, and particularly provides a standby power assembly based on an outer rotor of a head sheave of a mine hoist, which comprises a frequency converter speed regulating device, a three-phase switch device, a stator device, an excitation device, a photoelectric encoder and the like. The head sheave is divided into a fixed component and a rotating component, the fixed component and the rotating component are connected through a bearing, the low-speed synchronous motor is fused in the fixed component and the rotating component, an outer rotor type structure is formed, the stator device is arranged in the middle section of a main shaft of the head sheave, the excitation device is embedded in the inner side of a rope sheave of the head sheave, and the number of pole pairs of the formed outer rotor type synchronous motor is larger than or equal to 10. Under the condition that standby or emergency lifting is needed, the three-phase switch device is closed, and under the action of the variable-frequency speed regulation device, the rotating component drives the lifting steel wire rope to rotate at a low rotating speed through the high-friction liner nested in the rope wheel, so that the standby or emergency lifting task is completed. And under the condition of normal lifting, the three-phase switching device is switched off, and the standby power assembly is in a standby state.
本发明属于矿井提升机传动技术领域,具体提出一种基于矿井提升机天轮外转子的备用动力总成,由变频器调速装置、三相开关装置、定子装置、励磁装置和光电编码器等组成。所述天轮分成固定构件和转动构件,两者通过轴承联结,并将低速同步电动机融于其中,形成外转子式结构:所述定子装置置于天轮主轴中段,所述励磁装置嵌套于天轮绳轮的内侧,所组成的外转子式同步电动机的极对数≧10。在需要备用或应急提升的情况下,所述三相开关装置闭合,在所述变频调速装置的作用下,所述转动构件通过绳轮中嵌套的高摩擦衬垫带动提升钢丝绳以低转速运转,完成备用或应急提升任务。正常提升的情况下,所述三相开关装置断开,所述备用动力总成处于待机状态。
Standby power assembly based on outer rotor of head sheave of mine hoist
一种基于矿井提升机天轮外转子的备用动力总成
2024-02-20
Patent
Electronic Resource
Chinese
Standby power assembly based on head sheave of mine hoist
European Patent Office | 2024
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