| 摘要 |
The present invention relates to a high efficiency pulley lift which is capable of multi-selectively operating with respect to a lifting speed according to a weight of an abject (object to be lifted), thereby considerably improving the efficiency and convenience of a lifting operation. According to the present invention, the efficiency pulley lift capable of multi-selectively operating with respect to a lifting speed according to a weight of an abject comprises a common pulley lift including: a main input unit (12) which turns an epicycle gear so as to be outputted at a maximum reduction gear ratio; integral planetary gear assemblies (20, 30, 40) which include input planetary gears (21, 31, 41) and output planetary gears (22, 32,42); a planetary gear coupling housing (80) which integrally surrounds all of the planetary gears; an output movable housing (50) which includes an output ring gear (51); an input fixed housing (60) which includes an input ring gear (61); and an option input unit (70) which is outputted at a minimum reduction gear ratio, wherein a new transmission split gear (210) is further installed on the same axis between the option input unit (70) and a rear surface of the planetary gear coupling housing (80); a multi-transmission input gear unit (220) is further disposed on a circumference of the new transmission split gear (210) to be engaged with the new transmission split gear (210); and a multi-transmission power input unit (230) is disposed outside of a rear side connected to the multi-transmission input gear unit (220) to optionally input rotation power at a position different from a position of the main input unit (12) and the option input unit (70). |
