Method of joining shaft sections
US4208003A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1978 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Sep 6, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D1/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of joining shafts is disclosed in which a welded joint is formed between the shaft ends of, for example, a turbine and a generator inside of an assembled turbogenerator structure. A built-up weld portion is provided on the end of each shaft, which is machined to form a welding groove. During installation of the equipment, such as a turbogenerator arrangement, a welding ring is placed onto the end of one shaft. Welding powder is deposited in recesses formed between the shafts and the welding ring. The second shaft is then pressed against the welding ring. The shaft sections are preheated and the groove is supplied with welding material to join the sections while the shafts are being rotated. After completion of the weld, the seam is checked for structural integrity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.