Speed regulation transmission device, water -feeding pump and rotation machinery

The utility model provides a speed regulation transmission device has the water -feeding pump and the rotation machinery of this speed regulation transmission device, relates to the boiler feed pump technical field of thermal power factory. Wherein, the speed regulation transmission device includes input shaft, torque converter, epicyclie gear and output shaft, and torque converter has pump impeller and turbine, and epicyclie gear includes planet wheel, sun gear, planet carrier and ring gear, and epicyclie gear has three power transmission point - - - first, second, the 3rd power transmissionpoint, three power transmission point are one in planet carrier, sun gear, the ring gear, input shaft and output shaft parallel arrangement respectively, the input shaft is connected with the pump impeller, still is connected with epicyclie gear's power transmission point transmission on the input shaft, the turbine is connected with epicyclie gear's the 2nd power transmission point transmission,the output shaft is connec