To provide a railway vehicle drive unit reducing the torque loss, and improving lubricating performance.
The railway vehicle drive unit 12 is the drive unit that rotates and drives a wheel of railway vehicle. The railway vehicle drive unit 12 includes a reduction gear housing 13 having a space sealing lubricant inside thereof, supported on an inside diameter surface of the wheel and rotating together with the wheel; an input side rotating member 14 connected to a drive source; a speed reduction mechanism 15 arranged in the space of the reduction gear housing 13 in the state that at least a part thereof is immersed into the lubricant, reducing the rotation of the input side rotating member 14 and transmitting it to the reduction gear housing 13; and a lubricant transferring mechanism for transferring the lubricant from a bottom part region of the space to an upper part region with the usage of rotation of at least one of the reduction gear housing 13 and the input side rotating member 14.
| WO/2008/015282 | GEARLESS POWER BOGIE WITH INDEPENDENT WHEELS FOR A LOW FLOOR TRAMWAY VEHICLE |
| JP4235929 | Vehicle drive |
| JP4635789 | Tracking vehicle traveling device |
KATAOKA YUKIHIRO
ADACHI TAKAHISA
YAMADA MASAHIRO
TAMADA KENJI
Morishita Hachiro
Hiroyuki Yoshida