Title:
SPEED CONTROLLER OF HYDRAULIC JOINT
Document Type and Number:
Japanese Patent JPS60104817
Kind Code:
A
Abstract:
PURPOSE:To enable speed increasing and reducing control having high responsibility by providing a flow control means which controls a working fluid supply means according to the operating condition of a driven means so as to vary the flow rate of working fluid to be supplied. CONSTITUTION:A comparator 23 compares a speed pattern signal Sp sent from a speed setter 15 with a speed feedback signal Sa sent from a speed generator 13, so as to generate a speed deviation signal D. An oil pressure varying setter 24 receives the speed deviation signal D and gives a suitable oil pressure set value OPs1 to an oil pressure controller 21. The oil pressure varying setter 24 generates a maximum oil pressure set value OPs2 when it is selected, and indicates the oil pressure controller 21 that it closes an oil pressure regulating valve 20. All the working oil fed from a pump 18 may be therefore flown into a hydraulic joint 1.
Inventors:
OOI MASAO
Application Number:
JP21256083A
Publication Date:
June 10, 1985
Filing Date:
November 14, 1983
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F16D33/16; (IPC1-7): F16D33/06
Attorney, Agent or Firm:
Kenjiro Take