JP6991752B2 - アンチキャビテーション油圧回路 - Google Patents

アンチキャビテーション油圧回路 Download PDF

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Publication number
JP6991752B2
JP6991752B2 JP2017129477A JP2017129477A JP6991752B2 JP 6991752 B2 JP6991752 B2 JP 6991752B2 JP 2017129477 A JP2017129477 A JP 2017129477A JP 2017129477 A JP2017129477 A JP 2017129477A JP 6991752 B2 JP6991752 B2 JP 6991752B2
Authority
JP
Japan
Prior art keywords
supply
cavitation
path
spool
hydraulic oil
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.)
Active
Application number
JP2017129477A
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English (en)
Japanese (ja)
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JP2019011835A (ja
Inventor
倫章 矢田部
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.)
Nabtesco Corp
Original Assignee
Nabtesco Corp
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 Nabtesco Corp filed Critical Nabtesco Corp
Priority to JP2017129477A priority Critical patent/JP6991752B2/ja
Priority to KR1020180073740A priority patent/KR102580339B1/ko
Priority to EP18180903.9A priority patent/EP3421819B1/en
Priority to CN201810722254.2A priority patent/CN109210025B/zh
Publication of JP2019011835A publication Critical patent/JP2019011835A/ja
Application granted granted Critical
Publication of JP6991752B2 publication Critical patent/JP6991752B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/047—Preventing foaming, churning or cavitation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/021—Valves for interconnecting the fluid chambers of an actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/029—Counterbalance valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/8609—Control during or prevention of abnormal conditions the abnormal condition being cavitation

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Safety Valves (AREA)
JP2017129477A 2017-06-30 2017-06-30 アンチキャビテーション油圧回路 Active JP6991752B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017129477A JP6991752B2 (ja) 2017-06-30 2017-06-30 アンチキャビテーション油圧回路
KR1020180073740A KR102580339B1 (ko) 2017-06-30 2018-06-27 안티 캐비테이션 유압 회로
EP18180903.9A EP3421819B1 (en) 2017-06-30 2018-06-29 Anti-cavitation hydraulic circuit
CN201810722254.2A CN109210025B (zh) 2017-06-30 2018-06-29 防空化液压回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017129477A JP6991752B2 (ja) 2017-06-30 2017-06-30 アンチキャビテーション油圧回路

Publications (2)

Publication Number Publication Date
JP2019011835A JP2019011835A (ja) 2019-01-24
JP6991752B2 true JP6991752B2 (ja) 2022-01-13

Family

ID=62845974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017129477A Active JP6991752B2 (ja) 2017-06-30 2017-06-30 アンチキャビテーション油圧回路

Country Status (4)

Country Link
EP (1) EP3421819B1 (ko)
JP (1) JP6991752B2 (ko)
KR (1) KR102580339B1 (ko)
CN (1) CN109210025B (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110552928A (zh) * 2019-09-24 2019-12-10 江苏徐工工程机械研究院有限公司 一种集成阀及浮动液压系统
KR102343033B1 (ko) * 2021-04-19 2021-12-27 주식회사 모트롤 유압 시스템

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002039108A (ja) 2000-07-31 2002-02-06 Kayaba Ind Co Ltd 油圧駆動装置
JP2004204922A (ja) 2002-12-25 2004-07-22 Ts Corporation 流体モータの駆動回路
JP2005121074A (ja) 2003-10-15 2005-05-12 Nabtesco Corp 油圧モータの自動変速機構
US20150300381A1 (en) 2012-10-29 2015-10-22 Pmp Pro-Mec S.P.A. Valve with a spool for the control circuit of the motor of a vehicle

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563003A (en) * 1978-11-01 1980-05-12 Caterpillar Tractor Co Hydraulic control circuit with quick drop valve
US4434708A (en) * 1982-03-05 1984-03-06 General Signal Corporation Control valve for double-acting piston and valve assemblies
KR100305742B1 (ko) * 1996-05-25 2001-11-30 토니헬샴 중장비의재생장치
JP3874395B2 (ja) 1999-11-22 2007-01-31 カヤバ工業株式会社 油圧駆動装置
US6581639B2 (en) * 2000-10-20 2003-06-24 Case Corporation Low leak boom control check valve
US6619183B2 (en) * 2001-12-07 2003-09-16 Caterpillar Inc Electrohydraulic valve assembly
JP4633393B2 (ja) 2004-07-05 2011-02-16 ナブテスコ株式会社 キャビテーション防止油圧回路
KR101343828B1 (ko) * 2006-12-26 2013-12-20 주식회사 두산 지게차용 유압시스템의 리프트 콘트롤밸브
JP5087047B2 (ja) * 2009-06-18 2012-11-28 日立建機株式会社 油圧作業機械
KR101190553B1 (ko) * 2010-12-23 2012-10-16 두산모트롤주식회사 건설기계의 유압구동장치
US9187297B2 (en) * 2011-05-13 2015-11-17 Kabushiki Kaisha Kobe Seiko Sho Hydraulic driving apparatus for working machine
DE102014209277A1 (de) * 2014-05-16 2015-11-19 Robert Bosch Gmbh Anti-Pendel-Ventil für einen hydraulischen Drehantrieb
US9790964B2 (en) * 2014-09-25 2017-10-17 Cnh Industrial America Llc Hydraulic system
CN205714571U (zh) * 2016-04-29 2016-11-23 杭州电子科技大学 一种带有弹性阻尼器的低速直驱大扭矩水液压马达

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002039108A (ja) 2000-07-31 2002-02-06 Kayaba Ind Co Ltd 油圧駆動装置
JP2004204922A (ja) 2002-12-25 2004-07-22 Ts Corporation 流体モータの駆動回路
JP2005121074A (ja) 2003-10-15 2005-05-12 Nabtesco Corp 油圧モータの自動変速機構
US20150300381A1 (en) 2012-10-29 2015-10-22 Pmp Pro-Mec S.P.A. Valve with a spool for the control circuit of the motor of a vehicle

Also Published As

Publication number Publication date
KR20190003373A (ko) 2019-01-09
JP2019011835A (ja) 2019-01-24
EP3421819A1 (en) 2019-01-02
EP3421819B1 (en) 2023-11-29
CN109210025B (zh) 2022-06-24
KR102580339B1 (ko) 2023-09-19
CN109210025A (zh) 2019-01-15

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