EP 0375888 A3 19900718 - SCREW PRESS
Title (en)
SCREW PRESS
Publication
Application
Priority
- DE 3843547 A 19881223
- DE 3928652 A 19890830
Abstract (en)
[origin: EP0375888A2] The invention relates to a screw press (1) with a screw (3) and a screw nut (5), which are accommodated in a press frame (18), with a flywheel (7) running uninterruptedly in the same direction of rotation, with a clutch (19) actuable by a pressure medium, which is arranged between the flywheel (7) and the screw (3) and establishes a connection between the flywheel (7) and the screw (3) only during the downward stroke and partially during the working stroke, and with a hydraulic lifting device (7) for returning the ram (2), a plurality of oil outlet holes being formed in the region of flanks of the screw nut (5) for the purpose of lubrication. To improve the mounting conditions, the invention proposes that the oil outlet holes should be arranged in the form of bearing pockets (8) on the bearing flanks (11) of the screw nut (5), in order to form a hydrostatic bearing, and that the bearing force of the hydrostatic bearing should be set to a smaller force than that which corresponds to the maximum force of the screw press (1). <IMAGE>
IPC 1-7
IPC 8 full level
B21J 9/18 (2006.01); B30B 1/18 (2006.01); B30B 1/22 (2006.01); B30B 15/00 (2006.01); F16C 32/06 (2006.01)
CPC (source: EP)
B30B 1/18 (2013.01); B30B 1/188 (2013.01); B30B 15/0088 (2013.01)
Citation (search report)
- [A] DE 2851551 A1 19800604 - WEINGARTEN AG MASCHF
- [A] AT 191741 B 19570910 - HAEMMERLE AG [CH]
- [A] DE 3121588 A1 19821216 - SIEMPELKAMP GMBH & CO [DE]
- [AP] EP 0344673 A2 19891206 - VACCARI SPA [IT]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0375888 A2 19900704; EP 0375888 A3 19900718; EP 0375888 B1 19940727; AT E109042 T1 19940815; BR 8906693 A 19900911; CS 8907059 A2 19911217; CZ 280160 B6 19951115; DE 3928652 A1 19900628; DE 3928652 C2 19920402; DE 58908105 D1 19940901; ES 2057060 T3 19941016; JP H02224891 A 19900906; RU 1831430 C 19930730
DOCDB simple family (application)
EP 89120458 A 19891106; AT 89120458 T 19891106; BR 8906693 A 19891222; CS 705989 A 19891213; DE 3928652 A 19890830; DE 58908105 T 19891106; ES 89120458 T 19891106; JP 33143189 A 19891222; SU 4742671 A 19891218