Method and system for retreading track wheel
First Claim
1. A method for resurfacing a worn railway wheel substantially to an original profile, comprising the steps of:
- maintaining a welding device spaced from the worn railway wheel, the worn railway wheel defining an axis;
displacing at least one of the welding device and worn railway wheel about the axis for continuous revolving displacement therebetween at a predetermined rate;
selectively actuating the welding device and concurrently adjusting axial and radial displacement relative to a wheel center between the welding device and the railway wheel, the welding device being thereby controlled over a plurality of revolving passes to adaptively aggregate a plurality of annular beads formed from a welding material radially and axially displaced along a circumferential surface of the worn railway wheel having a curved profile, the welding material being applied during the continuous revolving displacement to form a welded layer of varied thickness on the circumferential surface, the circumferential surface having a flange and a tread surface, each annular bead extending to substantially encircle a portion of the circumferential surface, whereby the welded layer forms a curvilinear profile tapered away from the flange; and
surface processing the welded layer to form a substantially uniform surface to substantially reconstitute the worn railway wheel to the original profile.
0 Assignments
0 Petitions
Accused Products
Abstract
A wheel resurfacing method and system for resurfacing a worn track wheel to its original profile are disclosed. The system comprises a support for maintaining the worn railway wheel, a welding device, a controller, and a surface processing device. The worn railway wheel'"'"'s circumferential surface defining a flange and a tread surface is reconstituted using a welding material. The welding device and the worn railway wheel rotate one relative to the other at a predetermined rate to adaptively aggregate annular welding beads along the circumferential surface to form a curvilinear profile slanted away from the flange. A surface processing device is then applied to the welded layer to form a substantially uniform surface to reconstitute the worn railway wheel to its original profile.
25 Citations
18 Claims
-
1. A method for resurfacing a worn railway wheel substantially to an original profile, comprising the steps of:
-
maintaining a welding device spaced from the worn railway wheel, the worn railway wheel defining an axis; displacing at least one of the welding device and worn railway wheel about the axis for continuous revolving displacement therebetween at a predetermined rate; selectively actuating the welding device and concurrently adjusting axial and radial displacement relative to a wheel center between the welding device and the railway wheel, the welding device being thereby controlled over a plurality of revolving passes to adaptively aggregate a plurality of annular beads formed from a welding material radially and axially displaced along a circumferential surface of the worn railway wheel having a curved profile, the welding material being applied during the continuous revolving displacement to form a welded layer of varied thickness on the circumferential surface, the circumferential surface having a flange and a tread surface, each annular bead extending to substantially encircle a portion of the circumferential surface, whereby the welded layer forms a curvilinear profile tapered away from the flange; and surface processing the welded layer to form a substantially uniform surface to substantially reconstitute the worn railway wheel to the original profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for resurfacing a worn railway wheel substantially to an original profile, comprising the steps of:
-
maintaining a welding device spaced from the worn railway wheel, the worn railway wheel defining an axis; displacing at least one of the welding device and worn railway wheel about the axis for continuous revolving displacement therebetween at a predetermined rate; selectively actuating the welding device and concurrently adjusting axial and radial displacement relative to a wheel center between the welding device and the railway wheel, the welding device being thereby controlled over a plurality of revolving passes to adaptively aggregate along a curved profile of a circumferential surface of the worn railway wheel a plurality of annular beads formed from a welding material, the welding material being radially and axially displaced along the circumferential surface during the continuous revolving displacement to form a welded layer of varied thickness thereon, the circumferential surface having a flange and a tread surface, each annular bead extending to substantially encircle a portion of the circumferential surface, whereby the welded layer forms a curvilinear profile tapered away from the flange; and surface processing the welded layer to form a substantially uniform surface to substantially reconstitute the worn railway wheel to the original profile; wherein the welding material is applied onto welding points defined along the circumferential surface in cooperation with a flux material, the flux material establishing an airtight flux covering over the welding points during application. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A method for resurfacing a worn railway wheel substantially to an original profile, comprising the steps of:
-
supporting the worn railway wheel and a welding device; actuating rotational displacement between the worn railway wheel and the welding device one relative to the other at a predetermined rate; mechanically disturbing the worn railway wheel to form a plurality of grooves into the circumferential surface, each of the grooves being formed to extend transversely on the circumferential surface; selectively actuating the welding device and concurrently adjusting axial and radial displacement relative to a wheel center between the welding device and the railway wheel, the welding device being thereby controlled over a plurality of revolving passes to adaptively aggregate a plurality of annular beads formed from a welding material radially and axially displaced along a circumferential surface of the worn railway wheel having a curved profile and form a welded layer of varied thickness thereon, the circumferential surface having a flange and a tread surface, each annular bead extending to substantially encircle a portion of the circumferential surface, whereby the welded layer forms a curvilinear profile tapered away from the flange; and
,surface processing the welded layer to form a substantially uniform surface to substantially reconstitute the worn railway wheel to the original profile.
-
Specification