公开(公告)号：US20210285519A1

公开(公告)日：2021-09-16

申请号：US16334682

申请日：2017-02-28

Applicant: BYD COMPANY LIMITED

Inventor： Jintao ZHANG ,  Lin REN ,  Daolin LI ,  Xin ZHANG ,  Jianjian YUAN ,  Cailin FU ,  Hongbin LUO

IPC: F16H1/22 ,  F16H57/04 ,  F16H57/021 ,  B61B13/02 ,  H02K7/102 ,  H02K7/116

Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transport system are disclosed. The speed reducer includes: a box body; a speed-reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high-speed end of the speed-reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed-reducing mechanism and a more stable power transmission.