Shifting motor transmission structure of electrical bicycle

一种电动自行车用变档电机变速箱结构

Abstract

The utility model relates to a shifting motor transmission structure of an electrical bicycle. The transmission structure comprises a motor chamber and a transmission, wherein the motor chamber and the transmission are separated by a casing, a driving shaft is arranged in the motor chamber, one end of the driving shaft extends into the transmission, an output shaft is arranged in the transmission, one end of the output shaft extends to the outer side of a transmission cover, an oil seal is arranged at the matching part of the driving shaft and the casing, an oil seal is arranged at the matching part of the output shaft and the transmission cover, the top and bottom of the transmission are respectively provided with an oil filling port and an oil drain port, and the top of the transmission is provided with a labyrinth. The shifting motor transmission structure of the electrical bicycle has the advantages that the lubricating method that the splashed thin oil can be replaced is adopted, and the labyrinth can perform the ventilation and pressure-reduction functions; the problem of quick abrasion of parts due to lack of oil is solved, and the service life of the part is doubled; the manufacturing cost is low, the installation is convenient, and the like.
本实用新型的一种电动自行车用变档电机变速箱结构,包括电机室和变速箱,所述电机室和变速箱通过壳体分开,所述电机室内安装有驱动轴,所述驱动轴的一端伸入变速箱,所述变速箱内安装有输出轴,所述输出轴的一端伸出至变速箱盖的外侧。所述驱动轴与壳体的配合处安装有油封,所述述输出轴与变速箱盖的配合处安装有油封;所述变速箱的顶部和底部分别设置有加油口和放油口,所述变速箱的顶部设置有迷宫。因此,本实用新型的一种电动自行车用变档电机变速箱结构,可采用稀油飞溅可换的润滑方式,而迷宫可起到透气减压的作用,本实用新型解决了因油缺失而导致部件快速磨损的问题,使部件寿命成倍增加,还具有制造成本低,安装方便等优点。

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    CN-104565319-AApril 29, 2015无锡爱奇克发动机有限公司Variable-gear motor gearbox structure of electric bicycle