ELECTRIC CONTACT MACHINE TOOL FOR MACHINING WHEELSET TYRES Russian patent published in 1997 - IPC

FIELD: railway transport; maintenance and repair machine tools. SUBSTANCE: machine tool has heads with centers installed on base and intended for fixing the blanks Current conductor is made in form of rollers installed on axles in housing mounted on axle secured on slider spring-loaded relative to sleeve. Sleeve has reciprocating motion drive. Rollers of each roller unit are displaced axially relative to each other to provide reliable current supply to machined wheelset in process of entire machining cycle. In initial position, roller units are arranged between separated parts of rail pair installed on plate which, in its turn, 1 mounted on supports. Wheelsets are fed to machining zone along feed section of rail track, and after machining they are moved off along move-off section of rail track. EFFECT: possibility of machining of wheelset tyres both, with and without rolling them out from under vehicle. 2 cl, 4 dwg