Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1981-08-24
1983-05-10
Nase, Jeffrey V.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
B65G 2500
Patent
active
043825036
ABSTRACT:
Disclosed is a walking beam and more particularly its driving mechanisms whereby a material placed on a plurality of stationary beams for transfer, e.g., a steel product such as a steel pipe or round bar is raised from below, moved forward and lowered again onto the stationary beams by a plurality of transfer beams and this process is repeated to effect the transfer of the material. Each of the driving mechanisms includes a first link for causing the transfer beam to make a circular motion and the first link is rotatable about a supporting shaft with a radius of rotation l. The supporting shaft is fitted in the forward end of a second link and is rotatable about a main rotating shaft with a radius of rotation 2l. Mounted also on the supporting shaft is a first gear which is rotatable along with the first link and the first gear is in mesh with a second gear mounted on the main rotating shaft. The driving of the second gear and the second link is controlled selectively such that one of them is driven and the other is locked or both of them are driven and in this way the feed length of the transfer stroke of the transfer beam is changed to 2l, 4l or 6l.
REFERENCES:
patent: 1964147 (1934-06-01), Fisk
Akita Shinji
Morita Minoru
Nase Jeffrey V.
Nippon Kokan Kabushiki Kaisha
Williamson Dennis
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