The invention relates to a device (22) for calibrating an underfloor wheelset lathe (3) without a calibration wheelset, comprising; a motor (23) with a rotational axis (D), a friction roller (24), and a measuring bridge (18), wherein the friction roller (24) is connected p a driveshaft of the motor (23). The aim of the invention is to allow a simpler calibration without a calibration wheelset. This is achieved in that the friction roller (24) has an approximately cylindrical frictional surface with a defined nominal diameter. The invention additionally relates to an underfloor wheelset lathe (3) comprising such a device (22) and to a method for calibrating an underfloor wheelset lathe (3).

The invention relates to a device (22) for calibrating an underfloor wheelset lathe (3) without a calibration wheelset, comprising; a motor (23) with a rotational axis (D), a friction roller (24), and a measuring bridge (18), wherein the friction roller (24) is connected p a driveshaft of the motor (23). The aim of the invention is to allow a simpler calibration without a calibration wheelset. This is achieved in that the friction roller (24) has an approximately cylindrical frictional surface with a defined nominal diameter. The invention additionally relates to an underfloor wheelset lathe (3) comprising such a device (22) and to a method for calibrating an underfloor wheelset lathe (3).

A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

Represented and described is an underfloor wheel set processing machine, in particular an underfloor wheel lathe (1′) for reprofiling wheels and brake discs of wheel sets (20) of rail vehicles, comprising: a machine stand (3), a crossbeam (2) for bridging a workshop track (4) with at least two rails (4A, 4B, 4C) in the transverse direction, two roller carriers (7A, 7B), at least four friction rollers (8), at least one friction roller drive (9) to drive the friction rollers (8) and at least one axial guide roller (19) to axially guide the wheel set (20), wherein the machine stand (3) has a first part (3A) and a second part (3B), wherein the crossbeam (2) is supported on both parts (3A, 3B) of the machine stand (3), wherein the roller carriers (7A, 7B) are movably connected to the machine stand (3), and wherein the friction rollers (8) are rotatably supported on the roller carrier (7A, 7B). In order to adjust to wheel sets (20) with different track widths, it is proposed for the first part (3A) of the machine stand (3) and the second part (3B) of the machine stand (3) to be displaceable relative to one another in the transverse direction.

Represented and described is an underfloor wheel set processing machine, in particular an underfloor wheel lathe (1′) for reprofiling wheels and brake discs of wheel sets (20) of rail vehicles, comprising: a machine stand (3), a crossbeam (2) for bridging a workshop track (4) with at least two rails (4A, 4B, 4C) in the transverse direction, two roller carriers (7A, 7B), at least four friction rollers (8), at least one friction roller drive (9) to drive the friction rollers (8) and at least one axial guide roller (19) to axially guide the wheel set (20), wherein the machine stand (3) has a first part (3A) and a second part (3B), wherein the crossbeam (2) is supported on both parts (3A, 3B) of the machine stand (3), wherein the roller carriers (7A, 7B) are movably connected to the machine stand (3), and wherein the friction rollers (8) are rotatably supported on the roller carrier (7A, 7B). In order to adjust to wheel sets (20) with different track widths, it is proposed for the first part (3A) of the machine stand (3) and the second part (3B) of the machine stand (3) to be displaceable relative to one another in the transverse direction.

A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

A portable apparatus for configuring a wheel associated with a track is provided. The apparatus is in a fixed position with respect to a rail associated with the track when in operation. The apparatus includes a tool configured to engage the wheel, a position system for positioning the cutting tool in at least two axis, and a computer control. The computer control is coupled to control the positioning system. The positioning system is controlled so that the wheel is configured in accordance with a profile.

A method for machining the wheel running surfaces of wheels for rail vehicles using a wheel machining machine is described herein. The method includes performing a rolling process on the wheels with a rolling tool that applies a rolling force to the wheels, and adjusting the rolling force by controlling the torques of drive motors of feed axles of the rolling tool.

A method for machining the wheel running surfaces of wheels for rail vehicles using a wheel machining machine is described herein. The method includes performing a rolling process on the wheels with a rolling tool that applies a rolling force to the wheels, and adjusting the rolling force by controlling the torques of drive motors of feed axles of the rolling tool.