Patent ID: 9352758
Filing Date: 2016-05-31
CPC Classification: B61C,B61F,Y02T

Claim Text:
1. A flexible direct-drive bogie, comprising: a bogie frame, two permanent magnetic motors respectively arranged at a front side and a rear side of the bogie frame, an air spring arranged on the top of the bogie frame, and front and rear wheelsets arranged at the bottom of the bogie frame, said bogie frame comprising a left side-frame and a right side-frame, wherein: middle parts of said left side-frame and right side-frame are fixedly integrally connected to each other through a flexible cross beam constituted by four steel plates, gaps are left among the four steel plates, an axle of each of said wheelsets passes through a central through-hole arranged in the permanent magnetic motor, output shafts at two ends of the permanent magnetic motor are fixed to two wheels of the wheelset respectively through flexible drive devices, so as to hang the permanent magnetic motor in the middle of the wheelset, housings of the two permanent magnetic motors are connected to each other through a longitudinal linking rod, a bridge plate for fixedly connecting to a vehicle body is crossly arranged on the top of the air spring, a traction rod bracket is mounted at a central location of a lower end face of the bridge plate, the traction rod bracket is provided with a traction body, and a traction rod is mounted on each of the left and right ends of the traction body, wherein one traction rod is connected to the housing of the permanent magnetic motor on the front side and the other traction rod is connected to the housing of the permanent magnetic motor on the rear side.