Screw press
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 14, 1986
Grant Date -
N/A
app pub date -
Mar 13, 1984
filing date -
Mar 17, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A screw press has a flywheel rotationally connected to the press spindle by way of a friction coupling. The spindle is displaced axially in a nut mounted in the upper cross member of the press frame, and the flywheel has external toothing with a width corresponding to the maximum pressing stroke plus the width of the driving pinions. A plurality of pinions engaging in the said toothed rim are each driven by an oil-hydraulic axial piston motor or by a pair of oil-hydraulic axial piston motors and the axial piston motors together with the pinions are disposed on a platform surrounding the upper cross member of the press frame. In order to reduce the structural expenditure and to increase the operational reliability, each axial piston motor or pair of axial piston motors associated with a pinion has associated with it on the platform a controllable pump which is driven by a respective electric motor and is reversible with respect to the flow direction.
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