Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – Bessemer-type treating vessel
Patent
1981-11-05
1982-08-17
Rosenberg, P. D.
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
Bessemer-type treating vessel
266246, C21C 550
Patent
active
043446086
ABSTRACT:
A crucible of a converter is mounted to a pair of supports and releasably coupled to a tilt drive. Secured to each of the supports is a bearing assembly within which a crucible trunnion is journalled. A slidable coupling shaft interconnects an internally toothed output gear of the tilt drive and an internally toothed gear fixed to one of the trunnions. The coupling shaft includes a spur gear adjacent each of its ends. One coupling gear engages the trunnion internal gear while the other engages the tilt drive internal gear. The peripheral surface of each coupling gear comprises a spherical segment to provide an articulated connection for accommodating axial misalignment between the trunnion and the tilt drive internal gears. To disconnect the crucible from the tilt drive, the coupling shaft is displaced axially away from the trunnion until the spherical segment gear disengages the trunnion gear. The coupling shaft includes a spindle coaxially mounted to its tilt drive end. A threaded portion of the spindle is in engagement with a worm driven gear wheel hub whose rotation axially displaces the spindle to move the coupling shaft.
REFERENCES:
patent: 3951390 (1976-04-01), Krause
patent: 3977659 (1976-08-01), Kraizinger
patent: 4023785 (1977-05-01), Riegler
Takahashi, "The Vessel Exchanging System in Basic Oxygen Furnace Shop", Association of Iron and Steel Engineers, 9/77.
Rosenberg P. D.
Zahnraderfabrik Renk A.G.
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