公开(公告)号：EP3502510A1

公开(公告)日：2019-06-26

申请号：EP17852095.3

申请日：2017-02-28

Applicant: BYD Company Limited

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

IPC: F16H1/32 ,  H02K7/116

Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transit 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.