COMPACT DRIVE DEVICE FOR SELF-PROPELLED RAIL VEHICLES Russian patent published in 2020 - IPC B61C9/52 H02K7/116 F16H57/04 

FIELD: transportation.

SUBSTANCE: group of inventions relates to electric transmissions of rail vehicles. Compact drive of self-propelled rail vehicle for fastening outside of wheel consists of electric motor fed with power electronic converter, reduction gear and mechanical coupling for connection with wheel pair or wheel. At that the electric motor is a high-speed electric motor, at the same time its rotor is supported by bearings together with the driving gear wheel of input gearing of the high-speed stage of a reducer, and all together they create a rotor assembly, rotation axis of which is perpendicular to axis of rotation of the wheel. Output shaft of gear is part of arranged next bevel gear. Output shaft of the bevel gear is connected either directly or by means of a coupling with the axis of the self-propelled rail vehicle or with the wheel. At that, electric motor and high-speed stage of reduction gear are located in one compact housing, and electric motor is source of heat for preliminary heating of lubricant of high-speed stage of reduction gear.

EFFECT: technical result consists in reduction of volume and weight of drive devices.

8 cl, 2 dwg