ES2047675T3 - Metodo de controlar la operacion de giro de un mecanismo de giro y un sistema de control hidraulico para llevar a cabo el mismo. - Google Patents
Metodo de controlar la operacion de giro de un mecanismo de giro y un sistema de control hidraulico para llevar a cabo el mismo.Info
- Publication number
- ES2047675T3 ES2047675T3 ES89307594T ES89307594T ES2047675T3 ES 2047675 T3 ES2047675 T3 ES 2047675T3 ES 89307594 T ES89307594 T ES 89307594T ES 89307594 T ES89307594 T ES 89307594T ES 2047675 T3 ES2047675 T3 ES 2047675T3
- Authority
- ES
- Spain
- Prior art keywords
- hydraulic motor
- pressure
- valve
- rotating
- discharge
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/123—Drives or control devices specially adapted therefor
-
- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/128—Braking systems
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2285—Pilot-operated systems
-
- 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
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
- F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
- F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
-
- 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
- F15B2211/40—Flow control
- F15B2211/455—Control of flow in the feed line, i.e. meter-in control
-
- 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
- F15B2211/40—Flow control
- F15B2211/47—Flow control in one direction only
- F15B2211/473—Flow control in one direction only without restriction in the reverse direction
-
- 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
- F15B2211/50—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
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- 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
- F15B2211/575—Pilot pressure control
-
- 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
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve 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
- F15B2211/70—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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4061—Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits
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)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
SE PRESENTA UN METODO PARA CONTROLAR EL FUNCIONAMIENTO GIRATORIO DE UN MECANISMO GIRATORIO PARA HACER GIRAR LA SUPERESTRUCTURA GIRATORIA DE UNA RETROEXCAVADORA HIDRAULICA O SIMILAR. EL METODO COMPRENDE LA COLOCACION DE UNA VALVULA SELECTORA DEL MODO DE GIRO (2) EN UNA POSICION MOTRIZ PARA SUMINISTRAR UN FLUIDO DESCARGADO DE LA BOMBA HIDRAULICA (1) A TRAVES DE UNA LINEA DE SUMINISTRO Y DESCARGA HASTA UN MOTOR HIDRAULICO (3) PARA MOVER EL MOTOR HIDRAULICO EN UNA OPERACION DE MOVIMIENTO, AJUSTANDO UNA DE UN PAR DE VALVULAS (4A, 4B) PROVISTAS ENTRE LA VALVULA SELECTORA DEL MODO DE GIRO Y EL MOTOR HIDRAULICO, ASOCIADAS CON LA PIEZA LATERAL DEL SUMINISTRO DEL MOTRO HIDRAULICO PARA FUNCIONAR A UNA PRESION MAYOR QUE LA PRESION DE LA VALVULA PRINCIPAL (12) LIMITANDO LA PRESION EN LAS LINEAS DE SUMINISTRO Y DESCARGA HASTA LA PRESION DE LA VALVULA PRINCIPAL MIENTRAS QUE EL MOTOR HIDRAULICO FUNCIONA EN MODO DE MOVIMIENTO, Y AJUSTANDO LA OTRA VALVULA ASOCIADA CON LA PIEZA LATERAL DE DESCARGA DEL MOTOR HIDRAULICO A UNA PRESION INFERIOR QUE LA PRESION DE LA VALVULA PRINCIPAL PARA LIMITAR LA PRESION EN LA LINEA DE SUMINISTRO Y DESCARGA ASOCIADA CON LA PIEZA LATERAL DE DESCARGA DEL MOTOR HIDRAULICO PARA AJUSTAR LA PRESION DE LA OTRA VALVULA MIENTRAS EL MOTRO HIDRAULICO FUNCIONA EN MODO DE FRENADO. ESTE METODO FRENA EL MECANISMO GIRATORIO SUAVEMENTE PARA EVITAR EL DESGASTE RAPIDO DE LAS SUPERFICIES DE FRENADO DE LOS COMPONENTES DEL MECANISMO DE GIRO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP89307594A EP0410053B1 (en) | 1989-07-26 | 1989-07-26 | Method of controlling the slewing operation of a slewing mechanism and a hydraulic control system for carrying out the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2047675T3 true ES2047675T3 (es) | 1994-03-01 |
Family
ID=8202743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES89307594T Expired - Lifetime ES2047675T3 (es) | 1989-07-26 | 1989-07-26 | Metodo de controlar la operacion de giro de un mecanismo de giro y un sistema de control hidraulico para llevar a cabo el mismo. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5063742A (es) |
| EP (1) | EP0410053B1 (es) |
| DE (1) | DE68910517T2 (es) |
| ES (1) | ES2047675T3 (es) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285643A (en) * | 1990-04-02 | 1994-02-15 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system for civil-engineering and construction machine |
| JP2600009B2 (ja) * | 1990-04-25 | 1997-04-16 | 株式会社神戸製鋼所 | クレーンの旋回制御装置 |
| JPH07110759B2 (ja) * | 1990-10-18 | 1995-11-29 | 株式会社神戸製鋼所 | 建設機械における上部旋回体の旋回停止制御方法および装置 |
| GB2267328B (en) * | 1992-05-22 | 1995-06-14 | Linde Ag | Hydrostatic drive system |
| DE4235709A1 (de) * | 1992-10-22 | 1994-04-28 | Linde Ag | Hydrostatisches Antriebssystem |
| DE4235707B4 (de) * | 1992-10-22 | 2007-10-18 | Linde Material Handling Gmbh | Hydrostatisches Antriebssystem |
| JPH06173299A (ja) * | 1992-12-02 | 1994-06-21 | Komatsu Ltd | 建設機械の旋回油圧回路 |
| JP3528981B2 (ja) * | 1994-08-30 | 2004-05-24 | 株式会社小松製作所 | 油圧ショベルのブームシリンダ用油圧回路 |
| US5499503A (en) * | 1994-09-22 | 1996-03-19 | Iowa Mold Tooling Company, Inc. | Hydraulic swing circuit |
| KR960023541A (ko) * | 1994-12-08 | 1996-07-20 | 안자키 사토루 | 유압 액츄에이터의 반전방지장치 |
| WO1997013929A1 (en) * | 1995-10-09 | 1997-04-17 | Shin Caterpillar Mitsubishi Ltd. | Control system for construction machine |
| JPH09317879A (ja) * | 1996-05-27 | 1997-12-12 | Komatsu Ltd | 油圧駆動装置の背圧制御回路 |
| JPH10220405A (ja) * | 1997-02-07 | 1998-08-21 | Teijin Seiki Co Ltd | リリーフ機構およびリリーフ機構付き流体回路 |
| US6260357B1 (en) | 1998-11-30 | 2001-07-17 | Caterpillar Inc. | Quick coupler control system |
| US20030121258A1 (en) * | 2001-12-28 | 2003-07-03 | Kazunori Yoshino | Hydraulic control system for reducing motor cavitation |
| JP4096900B2 (ja) * | 2004-03-17 | 2008-06-04 | コベルコ建機株式会社 | 作業機械の油圧制御回路 |
| DE102006040459B4 (de) * | 2005-09-07 | 2012-12-13 | Terex Demag Gmbh | Hydrauliksteuerkreis |
| DE102005053265B4 (de) * | 2005-11-08 | 2020-07-09 | Linde Hydraulics Gmbh & Co. Kg | Hydrostatisches Antriebssystem |
| JP4839390B2 (ja) * | 2009-04-17 | 2011-12-21 | 株式会社神戸製鋼所 | 旋回式作業機械の旋回停止制御装置および方法 |
| JP5480529B2 (ja) * | 2009-04-17 | 2014-04-23 | 株式会社神戸製鋼所 | 旋回式作業機械の制動制御装置 |
| CN103547741B (zh) * | 2011-05-02 | 2015-10-07 | 神钢建设机械株式会社 | 回转式工程机械 |
| US8528684B2 (en) * | 2011-11-30 | 2013-09-10 | Deere & Company | Charge pressure reduction circuit for improved transmission efficiency |
| JP5872363B2 (ja) * | 2012-03-30 | 2016-03-01 | 住友建機株式会社 | 旋回制御装置 |
| JP6115121B2 (ja) * | 2012-12-26 | 2017-04-19 | コベルコ建機株式会社 | 旋回制御装置及びこれを備えた建設機械 |
| KR101471288B1 (ko) * | 2013-05-06 | 2014-12-09 | 현대중공업 주식회사 | 선회밀림방지장치를 구비한 굴삭기 선회장치 |
| WO2015134484A1 (en) | 2014-03-04 | 2015-09-11 | Manitowoc Crane Companies, Inc. | Electronically controlled hydraulic swing system |
| KR102128630B1 (ko) * | 2014-03-24 | 2020-06-30 | 두산인프라코어 주식회사 | 유압시스템에서 스윙 모터의 제어방법 및 유압시스템 |
| DE102014011073B3 (de) * | 2014-07-30 | 2015-11-12 | Danfoss Power Solutions Gmbh & Co. Ohg | 1Motordrehzahlbegrenzungsvorrichtung |
| CN104358285B (zh) * | 2014-10-30 | 2016-08-17 | 华侨大学 | 基于双马达和液压蓄能器的挖掘机的节能型转台驱动系统 |
| JP6803194B2 (ja) * | 2016-10-25 | 2020-12-23 | 川崎重工業株式会社 | 建設機械の油圧駆動システム |
| EP3535458B1 (en) | 2016-11-02 | 2023-07-12 | Clark Equipment Company | System and method for defining a zone of operation for a lift arm |
| CN112499707A (zh) * | 2020-12-09 | 2021-03-16 | 无锡市政设计研究院有限公司 | 一种自流进水加药控制系统 |
| JP2024106370A (ja) * | 2023-01-27 | 2024-08-08 | キャタピラー エス エー アール エル | 旋回モータ用のリリーフ弁のリリーフ圧調整方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125324A (en) * | 1964-03-17 | Vivier | ||
| FR2395412A1 (fr) * | 1977-06-23 | 1979-01-19 | Poclain Sa | Dispositif d'arret automatique de la rotation d'un moteur hydraulique |
| DD133350B1 (de) * | 1977-09-23 | 1981-07-29 | Manfred Otto | Hydrostatisches getriebe,insbesondere zum antrieb von fahrzeugen |
| JPS5524210A (en) * | 1978-08-04 | 1980-02-21 | Mitsuwa Seiki Co Ltd | Hydraulic driving apparatus |
| DE3171629D1 (en) * | 1980-12-27 | 1985-09-05 | Hitachi Construction Machinery | Hydraulic power system |
| JPS5876853U (ja) * | 1981-11-19 | 1983-05-24 | 株式会社小松製作所 | 油圧駆動装置 |
| US4481770A (en) * | 1982-03-22 | 1984-11-13 | Caterpillar Tractor Co. | Fluid system with flow compensated torque control |
| JPS5955390A (ja) * | 1982-09-22 | 1984-03-30 | Niigata Eng Co Ltd | 湿式酸化装置 |
| GB2134876B (en) * | 1982-12-24 | 1987-01-21 | Kubota Ltd | Swivelling-type work vehicle |
| JPS6030730A (ja) * | 1983-07-26 | 1985-02-16 | Kobe Steel Ltd | 油圧ショベルの旋回優先油圧回路 |
| JPS6041602U (ja) * | 1983-08-31 | 1985-03-23 | 株式会社小松製作所 | ブレ−キ弁装置 |
| JPS6088730A (ja) * | 1983-10-21 | 1985-05-18 | Sumitomo Heavy Ind Ltd | 油圧シヨベル旋回体駆動用油圧回路 |
| JP2554243B2 (ja) * | 1984-02-08 | 1996-11-13 | 株式会社小松製作所 | 旋回油圧回路のブレ−キ装置 |
| IN165005B (es) * | 1985-07-17 | 1989-07-29 | Hitachi Construction Machinery | |
| IT1208866B (it) * | 1987-04-14 | 1989-07-10 | Chs Vickers Spa | Circuito idraulico di comando per organi di lavoro di macchine movimento terra con circuito di sovrali mentazione |
| JP2582266B2 (ja) * | 1987-09-29 | 1997-02-19 | 新キヤタピラー三菱株式会社 | 流体圧制御システム |
-
1989
- 1989-07-26 ES ES89307594T patent/ES2047675T3/es not_active Expired - Lifetime
- 1989-07-26 DE DE89307594T patent/DE68910517T2/de not_active Expired - Fee Related
- 1989-07-26 US US07/385,197 patent/US5063742A/en not_active Expired - Fee Related
- 1989-07-26 EP EP89307594A patent/EP0410053B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0410053B1 (en) | 1993-11-03 |
| DE68910517T2 (de) | 1994-03-17 |
| DE68910517D1 (de) | 1993-12-09 |
| EP0410053A1 (en) | 1991-01-30 |
| US5063742A (en) | 1991-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2047675T3 (es) | Metodo de controlar la operacion de giro de un mecanismo de giro y un sistema de control hidraulico para llevar a cabo el mismo. | |
| US4304527A (en) | System for pumping an abrasive or corrosive fluid | |
| US4856969A (en) | Fluid powered diaphragm pump with cycle timer | |
| AU1823488A (en) | Valve for hydraulic cylinders and the like | |
| US2467508A (en) | Hydraulic system | |
| ES2165909T3 (es) | Acoplamiento hidraulico con valvula de descarga de presion ajustable. | |
| ES2149527T3 (es) | Ensamblaje de actuador controlado por fluido. | |
| KR830005486A (ko) | 날개피치작동 시스템 | |
| ES2015967B3 (es) | Sistema de recuperacion del flujo para circuitos hidraulicos con bombas y valvulas de distribucion de presion compensada para elementos de las maquinas de removimiento de tierras. | |
| KR920004735A (ko) | 액튜에이터 구동회로에 있어서의 절환밸브의 파이롯트 압력제어회로 | |
| EP0404946A4 (en) | Hydraulic circuit device of construction vehicle | |
| GB2323579A (en) | Hydraulic control device | |
| EP0438604A4 (en) | Hydraulic circuit device | |
| SE9801290L (sv) | Förfarande vid ett system med ett trycksatt medium för användning och styrnig av en lyftbomsenhet speciellt i förening med en arbetsmaskin | |
| GB1285718A (en) | Improvements relating to hydraulic power transmission systems | |
| ES2133050A1 (es) | Accionamiento de ajuste maniobrado por medios de presion. | |
| US4216700A (en) | Actuator device for actuating ejector of scraper | |
| KR870001701A (ko) | 유압모터용 브레이크 회로장치 | |
| US2845778A (en) | Hydraulic power system | |
| US4121687A (en) | Control system for hydraulic lifts | |
| SU1650952A2 (ru) | Система управлени регулируемого насоса | |
| SU874398A1 (ru) | Система питани гидромеханической трансмиссии | |
| ES8207055A2 (es) | Una unidad doble de control de la presion mejorada | |
| KR920701695A (ko) | 유압 회로장치 | |
| JPS59222601A (ja) | 油圧シリンダ制御装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
Ref document number: 410053 Country of ref document: ES |