Hydraulic cycloidal drive

Details Hydraulic cycloidal drive Hydraulic cycloidal drive

F - Mech Eng,Light,Heat,Weapons

15

B

270/129, 270/134

F15B 15/18 (2006.01) F15B 7/00 (2006.01)

Patent

CA 1102838

HYDRAULIC CYCLOIDAL DRIVE ABSTRACT OF THE DISCLOSURE A transfer system having a transfer mechanism which is located directly on or adjacent the production machine. The transfer mechanism comprises a reciprocating workpiece shuttle driven by a hydraulic driving unit, specifically a hydraulic transfer cylinder. The latter is connected to a remote hydraulic cycloidal drive unit by long conduits which may be positioned overhead. The remote hydraulic cycloidal drive unit employs a pumping cylinder having an elongated stationary piston rod on which the cylinder housing is slidably supported, with the pres- sure fluid from the pumping cylinder being supplied through the conduits to the transfer cylinder. The housing of the pumping cylinder is reciprocated by a crank associated with a cycloidal mechanical drive. This crank is connected to and rotates with a gear which is rotatably supported on a slide and reacts with a stationary rack so that reciprocation of the slide causes alternate rotation of the gear. The slide of the cycloidal mechanical drive is in turn reciprocated by a hydraulic drive cylinder which is disposed adjacent and parallel to both the pumping cylinder and the slide.

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