Grinding device for the reprofiling of a rail of a railway track
AssigneeSpeno International S.A.
InventorRomolo Panetti
Life of this patent
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Abstract
A grinding device for the reprofiling of a rail of a railway track, comprises at least one grinding unit having a conical grinding wheel rotatably driven by a motor. The motor is secured to a bracket connecting it rigidly to the chamber of a jack whose piston is secured to a rod fixed on the carriage of a railroad vehicle. The jack makes it possible to cause feeding movement of the grinding wheel along a direction parallel to the side profile of the grinding wheel and defining the cutting depth and compensating for wearing away of the grinding wheel. This feeding movement of the grinding wheel takes place along a direction forming an angle with the axis of rotation of the conical grinding wheel, this angle being about half the summit angle of the conical grinding wheel.
Claims10
In a grinding device for reprofiling a rail of a railroad track, comprising at least one grinding unit having at least one grinding wheel rotatably driven about an axis by a motor, means mounting said device on a grinding carriage of a vehicle adapted to move along the track, means to change the elevation of the grinding unit relative to the vehicle and to force the grinding unit against the rail, the grinding wheel having a front working surface;
- the improvement in which the grinding wheel has a conical peripheral surface having two side profiles on opposite sides of the grinding wheel intersecting above the rail on said axis of rotation of the grinding wheel, said two side profiles lying in the plane that is perpendicular to the length of the rail and in which plane said axis lies, and linear actuating means to feed the grinding wheel along a path approximately parallel to the said side profile that is closer to the rail surface that is being ground and toward the rail in said plane in which said axis lies, said path making an angle with the axis of rotation of the grinding wheel which is approximately equal to half the angle formed by said intersecting side profiles of the grinding wheel.
Dependencies are inferred from the claim text.