Rolling unit for deep-rolling the running surfaces of rail vehicles
First Claim
1. A rolling unit for machining by a deep rolling process the wheel running surfaces of wheelsets for rail vehicles to increase the service life of the wheel running surfaces, the rolling unit comprising:
- a base body;
a first support arm extending vertically upwardly from the base body from a first proximal end to a first distal end, the support arm comprising a female-threaded aperture near the first distal end;
a receptacle comprising a shaft having an unthreaded portion and a male-threaded portion at a distal end thereof, the receptacle supported by the first support arm and fixed in position to the first support arm by engagement of the male-threaded portion with the female-threaded portion;
a bearing mounted on the unthreaded portion of the shaft of the receptacle; and
a work roller mounted on the bearing;
wherein the work roller comprises a working surface comprising at least a first arcuate surface portion and a second arcuate surface portion, wherein the first arcuate surface portion comprises a first radius having a first value and the second arcuate surface portion comprises a second radius having a second value which is different than the first value.
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Accused Products
Abstract
The invention concerns a rolling unit for machining the wheel running surfaces of wheelsets for rail vehicles, with the rolling unit featuring at least one work roller by means of which the wheel running surface to be machined is subjected to a deep rolling process following manufacture of the wheelset in new condition or, at a later date, after reprofiling to increase the service life of the wheel running surfaces. The task is solved to create a relevant rolling unit by means of which the wheel running surfaces can be deep-rolled in the forward feed process using work rollers. This task is solved by the rolling unit featuring a base body on which a support arm is located in a vertical position to the base area, on which a receptacle is supported that is unilaterally fixed in position via a thread in the support arm and on which an angular contact ball bearing is located; this supports at least one work roller featuring at least two different rolling radii.
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Citations
14 Claims
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1. A rolling unit for machining by a deep rolling process the wheel running surfaces of wheelsets for rail vehicles to increase the service life of the wheel running surfaces, the rolling unit comprising:
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a base body; a first support arm extending vertically upwardly from the base body from a first proximal end to a first distal end, the support arm comprising a female-threaded aperture near the first distal end; a receptacle comprising a shaft having an unthreaded portion and a male-threaded portion at a distal end thereof, the receptacle supported by the first support arm and fixed in position to the first support arm by engagement of the male-threaded portion with the female-threaded portion; a bearing mounted on the unthreaded portion of the shaft of the receptacle; and a work roller mounted on the bearing; wherein the work roller comprises a working surface comprising at least a first arcuate surface portion and a second arcuate surface portion, wherein the first arcuate surface portion comprises a first radius having a first value and the second arcuate surface portion comprises a second radius having a second value which is different than the first value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification