System for reprofiling a wheel set of a railway vehicle
AssigneeNSH USA Corporation
InventorsMichael H. Chu, James G. Otton, Eric S Butler
Life of this patent
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Abstract
A system for reprofiling a wheel set of a railway vehicle allows the center of rotation of the wheel set to move relative to supporting rollers. A cutting tool used to reprofile the wheel profile on a wheel set is moved relative to the center of rotation of the wheel set to maintain a constant distance between the center of rotation and the cutter. The rollers are maintained in a fixed position during the cutting process. The system avoids mechanically forcing a constant location of the wheel set relative to the center of rotation.
Claims9
A method of reprofiling a wheel set of a railway vehicle comprising:
- disposing the wheel set on one or more rollers, the rollers being supported on a milling station;
- determining a center of rotation of a wheel on the wheel set;
- determining a desired constant distance between a cutting tool and the center of rotation of the wheel;
- rotating the wheel on the one or more rollers and allowing the center of rotation of the wheel to move relative to the one or more rollers while rotating the wheel;
- activating the cutting tool to mill a profile on the wheel while rotating the wheel and preventing radial movement of the rollers relative to the milling station while the cutting tool is activated;
- and
- during the activating step, moving the cutting tool towards the constant distance between the cutting tool and the center of rotation of the wheel while the cutting tool is activated and while preventing radial movement of the rollers to maintain the rollers in a fixed position relative to the milling station while allowing the rollers to rotate.
Dependencies are inferred from the claim text.