JPS57110856A - Controller of oil hydraulic device - Google Patents

Controller of oil hydraulic device

Info

Publication number
JPS57110856A
JPS57110856A JP18713180A JP18713180A JPS57110856A JP S57110856 A JPS57110856 A JP S57110856A JP 18713180 A JP18713180 A JP 18713180A JP 18713180 A JP18713180 A JP 18713180A JP S57110856 A JPS57110856 A JP S57110856A
Authority
JP
Japan
Prior art keywords
valve
pressure
oil hydraulic
pipe line
neutral position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18713180A
Other languages
Japanese (ja)
Other versions
JPS6314230B2 (en
Inventor
Yukio Aoyanagi
Shuichi Ichiyama
Yasuhiko Murata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP18713180A priority Critical patent/JPS57110856A/en
Publication of JPS57110856A publication Critical patent/JPS57110856A/en
Publication of JPS6314230B2 publication Critical patent/JPS6314230B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Fluid Gearings (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To rapidly operate motor stopping means, by providing the first pressure transmitting means, transmitting control pressure in accordance with main pipe line pressure, and the second pressure transmitting means, transmitting control pressure in relation to input means of oil hydraulic motor control means.
CONSTITUTION: When a control lever of a servo valve 10 is returned to its neutral position, a selector valve 13, operated interlocking to the servo valve, is also returnd to its neutral position, and a pipe line to an open-close valve 21 is communicated to a tank. However at this time, pressure at the suction side of an oil hydraulic pump 1 rapidly rises to operate a control valve 11, then the servo valve 10 can not be reset to its neutral position and remains in a state of selecting position. Here a selector valve 14 is opeated in accordance with pressure in a main pipe line released from a shuttle valve 12. Accordingly, when an oil hydraulic motor 2 becomes a substantially stopping state, the selector valve 14 is reset to the neutral and the selector valve 13 is also in its neutral position, then the open-close valve 21 is operated, thus the main pipe line can be placed in a non-conductible state.
COPYRIGHT: (C)1982,JPO&Japio
JP18713180A 1980-12-27 1980-12-27 Controller of oil hydraulic device Granted JPS57110856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18713180A JPS57110856A (en) 1980-12-27 1980-12-27 Controller of oil hydraulic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18713180A JPS57110856A (en) 1980-12-27 1980-12-27 Controller of oil hydraulic device

Publications (2)

Publication Number Publication Date
JPS57110856A true JPS57110856A (en) 1982-07-09
JPS6314230B2 JPS6314230B2 (en) 1988-03-30

Family

ID=16200659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18713180A Granted JPS57110856A (en) 1980-12-27 1980-12-27 Controller of oil hydraulic device

Country Status (1)

Country Link
JP (1) JPS57110856A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356303U (en) * 1986-09-30 1988-04-15
CN104019084A (en) * 2014-06-04 2014-09-03 宁波中意液压马达有限公司 Hydraulic rotation buffering system
JP2019007586A (en) * 2017-06-27 2019-01-17 川崎重工業株式会社 Hydraulic drive system
WO2022270178A1 (en) * 2021-06-25 2022-12-29 川崎重工業株式会社 Hydraulic drive device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6366882U (en) * 1986-10-21 1988-05-06
JPS6390287U (en) * 1986-12-03 1988-06-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356303U (en) * 1986-09-30 1988-04-15
CN104019084A (en) * 2014-06-04 2014-09-03 宁波中意液压马达有限公司 Hydraulic rotation buffering system
JP2019007586A (en) * 2017-06-27 2019-01-17 川崎重工業株式会社 Hydraulic drive system
WO2022270178A1 (en) * 2021-06-25 2022-12-29 川崎重工業株式会社 Hydraulic drive device

Also Published As

Publication number Publication date
JPS6314230B2 (en) 1988-03-30

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