Title:
スクラップシャー駆動用油圧システム等のための油圧制御装置
Document Type and Number:
Japanese Patent JP2005530618
Kind Code:
A
Abstract:
The invention relates to hydraulic control in a hydraulic system for the operation of a machine tool such as a press for processing material of a certain type, especially for the operation of the scrap cutters. Said control allows for impact attenuation and combined rapid motion switching with load compensation and transfer of a hydraulic medium of a hydraulic cylinder for the movement of the other. According to the invention, said control comprises hydraulic media of a hydraulic cylinder for pre-control of a first main valve element ( 2.4.0 ), a second main valve element ( 2.7.0 ) and a third main valve element ( 3.7.0 ) which are functionally combined and a fourth valve ( 2.5 ).
Inventors:
Krotel, Andreas
Post, Carl-Heinz
Post, Carl-Heinz
Application Number:
JP2004507692A
Publication Date:
October 13, 2005
Filing Date:
March 27, 2003
Export Citation:
Assignee:
METSO LINDEMANN GMBH
International Classes:
B23D15/14; B30B1/32; B30B9/32; B30B15/16; B30B15/28; F15B11/00; F15B11/024; F15B11/028; F15B11/044; F15B13/04; F15B21/10; F15B21/14; (IPC1-7): B30B15/28; B30B1/32; F15B11/00
Attorney, Agent or Firm:
Yoichi Oshima