JP5481350B2 - 作業機械の油圧駆動装置 - Google Patents
作業機械の油圧駆動装置 Download PDFInfo
- Publication number
- JP5481350B2 JP5481350B2 JP2010248558A JP2010248558A JP5481350B2 JP 5481350 B2 JP5481350 B2 JP 5481350B2 JP 2010248558 A JP2010248558 A JP 2010248558A JP 2010248558 A JP2010248558 A JP 2010248558A JP 5481350 B2 JP5481350 B2 JP 5481350B2
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- JP
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- Prior art keywords
- valve
- oil
- filter
- pressure
- oil passage
- 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.)
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/225—Control of steering, e.g. for hydraulic motors driving the vehicle tracks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
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- 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
- 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
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Description
4 旋回体
5 作業装置
20 油圧ポンプ
21 プライオリティバルブ
22 ステアリングバルブ
23 ブレーキ弁
24 アキュムレータ
25 チャージバルブ(バルブ)
26 油路
27 タンク
33 開閉弁(弁体)
34 リリーフ弁
35 油路
36 フィルタ(別のフィルタ)
37 逆止弁(別の逆止弁)
38 油路(別の油路)
Claims (2)
- 油圧ポンプと、この油圧ポンプから吐出される圧油に応じて切り換えられる弁体と、この弁体の切り換え圧力の最高圧力を規定するリリーフ弁と、上記弁体と上記リリーフ弁とを連絡する油路に設けられるフィルタとを備えた作業機械の油圧駆動装置において、
上記油路に、上記フィルタに並設させて、上記弁体側から上記リリーフ弁側への油の流れを許容させ、上記リリーフ弁側から上記弁体側への油の流れを阻止する逆止弁を設け、
上記油圧ポンプから吐出される圧油が供給されるバルブを備え、このバルブ内に、上記弁体、上記リリーフ弁、上記油路、上記フィルタ、及び上記逆止弁を設け、
ブレーキ弁と、このブレーキ弁に圧油を供給可能なアキュムレータとを備え、
上記バルブが、上記アキュムレータに圧油を供給可能なチャージバルブから成り、
上記弁体が、上記アキュムレータの蓄圧が所定圧より高くなったときに、その高圧の圧油を逃がすことが可能な開閉弁から成ることを特徴とする作業機械の油圧駆動装置。 - 請求項1に記載の作業機械の油圧駆動装置において、
上記作業機械がホイールショベルから成り、
上記油圧ポンプから吐出される圧油が供給されるプライオリティバルブとステアリングバルブとを備え、
上記プライオリティバルブを介して上記チャージバルブに圧油を導く油路を設けるとともに、
上記油圧ポンプと上記プライオリティバルブを連絡する別の油路に別のフィルタを設け、上記別の油路に、上記別のフィルタに並設させて、上記油圧ポンプ側から上記プライオリティバルブ側への油の流れを許容させ、上記プライオリティバルブ側から上記油圧ポンプ側への油の流れを阻止する逆止弁を配置したことを特徴とする作業機械の油圧駆動装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010248558A JP5481350B2 (ja) | 2010-11-05 | 2010-11-05 | 作業機械の油圧駆動装置 |
EP11837981.7A EP2636910B1 (en) | 2010-11-05 | 2011-10-31 | Hydraulic drive device for construction machine |
CN201180053096.2A CN103201523B (zh) | 2010-11-05 | 2011-10-31 | 作业机械的液压驱动装置 |
PCT/JP2011/075078 WO2012060331A1 (ja) | 2010-11-05 | 2011-10-31 | 作業機械の油圧駆動装置 |
KR1020137011676A KR101850570B1 (ko) | 2010-11-05 | 2011-10-31 | 작업 기계의 유압 구동 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010248558A JP5481350B2 (ja) | 2010-11-05 | 2010-11-05 | 作業機械の油圧駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012097885A JP2012097885A (ja) | 2012-05-24 |
JP5481350B2 true JP5481350B2 (ja) | 2014-04-23 |
Family
ID=46024445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010248558A Active JP5481350B2 (ja) | 2010-11-05 | 2010-11-05 | 作業機械の油圧駆動装置 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2636910B1 (ja) |
JP (1) | JP5481350B2 (ja) |
KR (1) | KR101850570B1 (ja) |
CN (1) | CN103201523B (ja) |
WO (1) | WO2012060331A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103711172B (zh) * | 2013-12-18 | 2015-12-09 | 广西柳工机械股份有限公司 | 装载机四泵定量合流液压*** |
CN105986595B (zh) * | 2015-02-04 | 2019-10-01 | 卡特彼勒(青州)有限公司 | 用于机器的液压***及机器 |
CN110382784B (zh) * | 2017-12-26 | 2022-03-11 | 日立建机株式会社 | 作业机械 |
CN108373129A (zh) * | 2018-04-28 | 2018-08-07 | 浙江大学舟山海洋研究中心 | 超低温速冻生产线的同步升降装置 |
CN111120437B (zh) * | 2020-02-05 | 2023-06-06 | 山东路得威工程机械制造有限公司 | 一种工程机械的多模转向行走*** |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3237019C2 (de) * | 1981-10-07 | 1994-07-28 | Linde Ag | Hublader mit einer Lenkanlage mit hydrostatischer Lenkkraftunterstützungsanlage |
JPH0650810B2 (ja) | 1986-06-25 | 1994-06-29 | 富士通テン株式会社 | 音質制御装置 |
JP2514098Y2 (ja) * | 1990-08-03 | 1996-10-16 | 本田技研工業株式会社 | アクティブサスペンション装置の油圧制御装置 |
JPH0635607U (ja) * | 1992-10-12 | 1994-05-13 | カヤバ工業株式会社 | 保護回路付フィルタ装置 |
JP2582783Y2 (ja) * | 1993-12-22 | 1998-10-08 | 株式会社新潟鉄工所 | 油圧濾過回路 |
US5895099A (en) * | 1997-10-17 | 1999-04-20 | Deere & Company | Hydraulic structure for a brake system |
JP4111286B2 (ja) * | 1998-06-30 | 2008-07-02 | コベルコ建機株式会社 | 建設機械の走行制御方法及び同装置 |
JP4151597B2 (ja) * | 2004-03-31 | 2008-09-17 | コベルコ建機株式会社 | 油圧制御回路および建設機械 |
JP2006036021A (ja) * | 2004-07-27 | 2006-02-09 | Hitachi Constr Mach Co Ltd | 油圧駆動装置 |
JP2006290236A (ja) * | 2005-04-13 | 2006-10-26 | Hitachi Constr Mach Co Ltd | 油圧駆動装置 |
JP4871778B2 (ja) * | 2007-04-16 | 2012-02-08 | 日立建機株式会社 | 建設機械のフィルタ目詰まり判定装置 |
JP5380236B2 (ja) * | 2009-10-07 | 2014-01-08 | 日立建機株式会社 | ホイール式建設機械の油圧駆動装置 |
-
2010
- 2010-11-05 JP JP2010248558A patent/JP5481350B2/ja active Active
-
2011
- 2011-10-31 WO PCT/JP2011/075078 patent/WO2012060331A1/ja active Application Filing
- 2011-10-31 KR KR1020137011676A patent/KR101850570B1/ko active IP Right Grant
- 2011-10-31 CN CN201180053096.2A patent/CN103201523B/zh active Active
- 2011-10-31 EP EP11837981.7A patent/EP2636910B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2636910A1 (en) | 2013-09-11 |
CN103201523B (zh) | 2015-05-06 |
WO2012060331A1 (ja) | 2012-05-10 |
KR20130143581A (ko) | 2013-12-31 |
KR101850570B1 (ko) | 2018-04-19 |
EP2636910B1 (en) | 2018-06-20 |
EP2636910A4 (en) | 2016-07-13 |
JP2012097885A (ja) | 2012-05-24 |
CN103201523A (zh) | 2013-07-10 |
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