Weld head assembly
First Claim
1. A weld head assembly for forming a weld between two pipes in a nuclear reactor, the pipes having a substantially circular cross sectional shape, said weld head assembly comprising:
- a mounting ring subassembly comprising a mounting ring configured to be mounted to one of the pipes, at least one motor mounted to said mounting ring, said motor comprising an output shaft having a rotatable spur gear mounted thereto, and a plurality of bevel rollers mounted at spaced locations to said mounting ring, said rollers mounted along a same radial path; and
a faceplate subassembly secured to said mounting ring subassembly, said faceplate subassembly comprising a faceplate ring, a bevel ring assembly engaged to said faceplate ring and located to rotatably interface with said bevel rollers of said mounting ring subassembly, and a spur gear assembly engaged to said faceplate ring and located to mesh with said rotatable spur gear of said mounting ring subassembly motor so that said faceplate subassembly rotates with said motor spur gear, said bevel ring assembly comprising upper and lower bevel rings and said spur gear assembly comprising upper and lower gear rings, said spur gear assembly further comprising an inner flange and said bevel ring assembly being seated on said inner flange, said bevel ring assembly and said spur gear assembly each having a generally circular shape, the diameter of said spur gear assembly being larger than the diameter of said bevel ring assembly.
1 Assignment
0 Petitions
Accused Products
Abstract
A weld head assembly which, in one embodiment, includes a mounting ring subassembly and a faceplate subassembly is described. The mounting ring subassembly includes a mounting ring configured to be mounted to one of the pipes to be welded. At least one motor is mounted to the mounting ring and the motor includes an output shaft having a rotatable spur gear mounted thereto. A plurality of bevel rollers are mounted, at spaced locations, to the mounting ring and each of the rollers is mounted along a same radial path. The faceplate subassembly is secured to the mounting ring subassembly and includes a faceplate ring, a bevel ring and a spur gear mounted to the faceplate ring. Wire spool holders, wire feeders, a welding torch, and cameras are secured to the rotatable faceplate ring. The bevel ring is located to rotatably interface with the bevel rollers of the mounting ring subassembly and the spur gear is located to mesh with the rotatable spur gear of the mounting ring motor so that the faceplate subassembly rotates with the motor spur gear.
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Citations
18 Claims
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1. A weld head assembly for forming a weld between two pipes in a nuclear reactor, the pipes having a substantially circular cross sectional shape, said weld head assembly comprising:
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a mounting ring subassembly comprising a mounting ring configured to be mounted to one of the pipes, at least one motor mounted to said mounting ring, said motor comprising an output shaft having a rotatable spur gear mounted thereto, and a plurality of bevel rollers mounted at spaced locations to said mounting ring, said rollers mounted along a same radial path; and a faceplate subassembly secured to said mounting ring subassembly, said faceplate subassembly comprising a faceplate ring, a bevel ring assembly engaged to said faceplate ring and located to rotatably interface with said bevel rollers of said mounting ring subassembly, and a spur gear assembly engaged to said faceplate ring and located to mesh with said rotatable spur gear of said mounting ring subassembly motor so that said faceplate subassembly rotates with said motor spur gear, said bevel ring assembly comprising upper and lower bevel rings and said spur gear assembly comprising upper and lower gear rings, said spur gear assembly further comprising an inner flange and said bevel ring assembly being seated on said inner flange, said bevel ring assembly and said spur gear assembly each having a generally circular shape, the diameter of said spur gear assembly being larger than the diameter of said bevel ring assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A weld head assembly, comprising:
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a mounting member subassembly comprising a mounting member configured to be mounted substantially adjacent a location at which a weld is to be formed, at least one motor mounted to said mounting member, said motor comprising an output shaft having a rotatable spur gear mounted thereto, and a plurality of bevel rollers mounted at spaced locations to said mounting member; and a faceplate subassembly secured to said mounting member subassembly, said faceplate subassembly comprising a faceplate, a bevel assembly and a spur gear assembly mounted to said faceplate, said bevel assembly located to movably interface with said bevel rollers of said mounting member subassembly and said spur gear assembly located to mesh with said rotatable spur gear of said mounting member subassembly motor so that said faceplate subassembly rotates with said motor spur gear, said bevel ring assembly comprising upper and lower bevel rings and said spur gear assembly comprising upper and lower gear rings, said spur gear assembly further comprising an inner flange and said bevel ring assembly being seated on said inner flange, said bevel ring assembly and said spur gear assembly each having a generally circular shape, the diameter of said spur gear assembly being larger than the diameter of said bevel ring assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification