PLANT FOR PRESSING OFF WHEELS FROM WHEEL-SET AXLES Russian patent published in 2007 - IPC B23P19/27 

FIELD: railway transport; repair of rolled wheels.

SUBSTANCE: according to invention, front and rear plates braced by load-bearing studs with nuts are installed on base to form power unit. Rear plate carries piston hydraulic cylinder with hollow rod and piston with bore. Additional piston and rod are installed, according, in bore of piston and space of hollow rod. Rod thrust against central end face of wheel-set axle. Hollow rod thrust against end face of stepped bore of wheel-set axle found between seat steps for wheel hub and for bearings. Slot is made in front plate for fitting wheel-set axle and thrusting of wheel hub against front plate. Support for wheel-set axle is installed for vertical displacement on base from outer side of power unit. Front plate is braced to base by bolts and bushings and it can displace longitudinal through value of linear deformations. Centers of holes for studs in plates are arranged over circumference with center coinciding with longitudinal axis of hydraulic cylinder.

EFFECT: simplified design of plant, improved reliability and quality of pressing off.

5 dwg