Input transmission assembly and speed change device applying same

The utility model discloses an input transmission assembly and a speed change device using the same, and relates to the field of middle motors. According to the technical scheme, the device comprises a planet carrier; the plurality of groups of planet gears are arranged on the planet carrier along the axial direction; the gear ring is fixedly arranged, and the gear ring is matched with any group of planet gears; the sun shaft sleeves are matched with the planet wheels respectively; wherein the planet carrier is used for inputting the rotating speed, the sun shaft sleeves are used for outputting the rotating speed, and the rotating speeds of the sun shaft sleeves are different. The utility model has the advantages that the structure is simplified and the axial size is reduced. 本实用新型公开了一种输入传动组件及应用其的变速装置，其涉及中置电机领域。其技术方案要点包括：行星架；沿轴向布置于所述行星架上的多组行星轮；固定设置的齿圈，所述齿圈与任一组所述行星轮配合；以及，分别与所述行星轮配合的多个太阳轴套；其中，所述行星架用于输入转速，所述太阳轴套用于输出转速，且多个所述太阳轴套的转速均不相同。本实用新型具有简化结构以及减小轴向尺寸的优势。