Title:
HYDRAULIC MOTOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016044690
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve maintenance work efficiency.SOLUTION: A hydraulic motor control device 100 for controlling a piston motor in which a displacement volume is varied in accordance with a tilt angle of a swash plate includes a volume changeover valve 30 for changing over the tilt angle of the swash plate. The volume changeover valve 30 includes a first spool 40 stored in a storage hole 61, a plug 48 closing the storage hole 61, a spring 42 energizing the first spool 40, and a second spool 41 slidably inserted into a sliding hole 40d of the first spool 40. A state in which the second spool 41 is inserted into the sliding hole 40d of the first spool 40 is maintained when the plug 48 is removed and the first spool 40 is moved by energizing force of the spring 42 until the energizing force of the spring 42 is lost.SELECTED DRAWING: Figure 2
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Inventors:
SUZUKI ATSUSHI
SUZUKI KENJI
SUZUKI KENJI
Application Number:
JP2014166816A
Publication Date:
April 04, 2016
Filing Date:
August 19, 2014
Export Citation:
Assignee:
KYB CORP
International Classes:
F16K11/07; F03C1/253; F15B11/02
Attorney, Agent or Firm:
Masaki Goto
Masaaki Iida
Atsushi Sudo
Hiroyuki Kanno
Masaaki Iida
Atsushi Sudo
Hiroyuki Kanno