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WO2018169116A1 - Système hydraulique auquel une fonction de redondance facultative est appliquée - Google Patents

Système hydraulique auquel une fonction de redondance facultative est appliquée Download PDF

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Publication number
WO2018169116A1
WO2018169116A1 PCT/KR2017/003118 KR2017003118W WO2018169116A1 WO 2018169116 A1 WO2018169116 A1 WO 2018169116A1 KR 2017003118 W KR2017003118 W KR 2017003118W WO 2018169116 A1 WO2018169116 A1 WO 2018169116A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
valve
pack
valve pack
redundancy
Prior art date
Application number
PCT/KR2017/003118
Other languages
English (en)
Korean (ko)
Inventor
최영호
박정우
김효곤
이종득
이효준
Original Assignee
한국로봇융합연구원
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 한국로봇융합연구원 filed Critical 한국로봇융합연구원
Publication of WO2018169116A1 publication Critical patent/WO2018169116A1/fr

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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
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • 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
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8636—Circuit failure, e.g. valve or hose failure

Definitions

  • the present invention relates to a hydraulic system to which the selective redundancy function is applied. More specifically, the present invention relates to a hydraulic system to which a selective redundancy function is applied in which a hydraulic source for distributing a driving device according to a use and an output specification and supplying a hydraulic source to each of the driving devices can be supplied to a counterpart driving device as needed.
  • the hydraulic generator is a core part of the hydraulic system and refers to a hydraulic power unit or a hydraulic power pack (HPU).
  • HPU hydraulic power pack
  • the hydraulic source is supplied to the directional control valve, and each drive unit is a hydraulic pressure sent from the directional control valve. Take control.
  • the present invention provides a hydraulic system to which a selective redundancy function is applied in which a hydraulic source for distributing the driving devices according to a use and an output specification and supplying the hydraulic source to each of the driving devices can be supplied to the opposite driving device as needed.
  • the present invention can supply the hydraulic source through the other hydraulic generator by activating the redundancy function even if one hydraulic generator fails, the negative effect that the system will be affected by the external load by deactivating the redundant function It is to provide a hydraulic system with selective redundancy that enables precise control by minimizing the
  • the hydraulic system to which the selective redundancy function is applied is connected to a tank for supplying operating oil, the tank being connected to the first hydraulic device and the second hydraulic device arranged in parallel, and the rear end of the first hydraulic device. And a first valve pack having a first hydraulic line and a plurality of valves, a second valve pack connected to a rear end of the second hydraulic device and having a second hydraulic line and a plurality of valves, hydraulic pressure through the first valve pack.
  • a first drive unit composed of a plurality of drive units driven by a second drive unit, a second drive unit composed of a plurality of drive units driven by hydraulic pressure through the second valve pack, and between the first valve pack and the second valve pack
  • it comprises a redundancy valve for connecting or disconnecting the first hydraulic line and the second hydraulic line through ON / OFF (OFF).
  • the first drive unit by the first hydraulic unit and the second drive unit by the second hydraulic unit may constitute an independent hydraulic supply path.
  • the redundancy valve When the first hydraulic device is defective, the redundancy valve is turned on, and the first driving unit may be driven by hydraulic pressure through the second valve pack.
  • the redundancy valve is turned on, and the second drive unit may receive additional hydraulic pressure from the second valve pack.
  • the first driving unit may include a track motor, a boom cylinder arm cylinder, and a bucket cylinder
  • the second driving unit may include a swing motor, a trenching motor, and an arm crushing motor
  • the redundant valve may be composed of a poppet valve, a shuttle valve and a direction control valve.
  • first hydraulic device and the second hydraulic device may have the same specifications.
  • the plurality of valves of the first valve pack or the second valve pack is composed of a plurality of direction control valves, it may be arranged in parallel.
  • a hydraulic source for separately arranging the driving devices according to the use and the output specification and supplying them to each other can be supplied to the counterpart driving device as needed.
  • the hydraulic system with the selective redundancy function can supply the hydraulic source through the other hydraulic generator by activating the redundancy function even if one hydraulic generator fails, and the system is subject to external load.
  • the redundancy function for negative influences, precise control is possible by minimizing the effects.
  • FIG. 1 is an overall configuration diagram of a hydraulic system to which the selective redundancy function is applied according to the present invention.
  • FIG. 2 is a circuit diagram of a hydraulic system to which the selective redundancy function of the present invention is applied.
  • FIG. 1 is an overall configuration diagram of a hydraulic system to which the selective redundancy function is applied according to the present invention
  • FIG. 2 is a circuit diagram of the hydraulic system to which the selective redundancy function is applied according to the present invention.
  • the tank 100 is a reservoir for storing oil, and may be associated with a return device to recover oil that has been supplied to each of the driving units 510, 520, and 530 through a hydraulic system.
  • the return device may apply a conventional configuration in the field of heavy equipment, and detailed description thereof will be omitted.
  • the hydraulic generators 210 and 220 are branched in parallel to the first hydraulic generator 210 and the second hydraulic generator 220 at a rear end of the tank 100, and are arranged in a HPU (Hydraulic Power Unit) or HPP ( Hydraulic Power Pack.
  • HPU Hydrophilic Power Unit
  • HPP Hydraulic Power Pack.
  • the 1st oil pressure generator 210 and the 2nd oil pressure generator 220 are comprised using the oil pressure generator of the same specification.
  • the hydraulic pressure generating apparatuses 210 and 220 generate hydraulic pressure by pumping a flow rate in the tank 100 in which operating oil is stored, and the hydraulic pressure generated by supplying the flow rate to the valve packs 310 and 320 is generated by the valve pack 310 and 220. Via 320 to each hydraulic line 311, 321.
  • the valve packs 310 and 320 may include a second valve receiving hydraulic pressure from the first valve pack 310 and a second hydraulic generator 220 receiving hydraulic pressure from the first hydraulic pressure generating unit 210. Pack 320.
  • a check valve is installed between each of the hydraulic generators 210 and 220 and the valve packs 310 and 320, so that the high pressure flow rate sent to the valve packs 310 and 320 may be reduced. At 310 and 320, the reverse flow to the hydraulic generators 210 and 220 is blocked.
  • the first valve pack 310 includes a first hydraulic line 311 through which hydraulic pressure is transmitted and a plurality of valves 312, 313, 314, 315, and 316.
  • the first hydraulic line 311 provides a path of hydraulic pressure supplied from the first hydraulic pressure generating device 210, and the first driving part at the rear end through the plurality of valves 312, 313, 314, 315, and 316 arranged in parallel. 510 supplies the distributed hydraulic pressure to each.
  • the plurality of valves 312, 313, 314, 315, and 316 may be configured as proportional directional control valves.
  • valves 312, 313, 314, 315, 316 can be changed depending on the configuration of the actuator (actuator) of the corresponding first drive unit 510.
  • the second valve pack 320 includes a second hydraulic line 321 through which hydraulic pressure is transmitted and a plurality of valves 322 and 323.
  • the second hydraulic line 321 provides a path of hydraulic pressure supplied from the second hydraulic pressure generating device 220, and each of the second driving parts 520 and 530 of the rear stage is provided through a plurality of valves 322 and 323 arranged in parallel. Supply the hydraulic pressure distributed to the
  • the plurality of valves 322 and 323 may be configured as proportional directional control valves.
  • the number of the valves 322 and 323 can be changed depending on the configuration of the actuator (actuator) of the corresponding second drive unit 520.
  • the redundancy valve 400 is installed between the first valve pack 310 and the second valve pack 320 to connect and disconnect the first hydraulic line 311 and the second hydraulic line 321.
  • the redundant valve 400 may be designed as an on / off valve circuit by applying a poppet valve, a shuttle valve and a 2 / 3-way control valve.
  • the redundancy valve 400 may be turned on or off through an electrical signal of a user, thereby connecting or disconnecting the first hydraulic line 311 and the second hydraulic line 321. You can set the direction.
  • the driving units 510, 520, and 530 use a track motor and a swing motor as driving devices for driving, and selectively use a multipurpose arm cylinder or other tool driving device, which is a driving device for work, and for each driving device. It is connected to the direction control valve of each of the valve pack (310, 320) according to the output specification.
  • a multipurpose arm cylinder or other tool driving device which is a driving device for work, and for each driving device. It is connected to the direction control valve of each of the valve pack (310, 320) according to the output specification.
  • Table 1 the results of arranging the driving device in the direction control valve of the valve packs 310 and 320 are shown in Table 1 below.
  • the driving units 510, 520, and 530 include a first driving unit 510 connected to the first valve pack 310, a second driving unit 520 and a third driving unit 530 connected to the second valve pack 320. do.
  • the driving units 510, 520, and 530 may be appropriately disposed according to the output and the purpose so that the valve packs 310 and 320 for driving device control may be simultaneously performed with the motion.
  • the first drive unit 510 is a track motor (511, 512), a low consumption flow rate boom cylinder 513, arm cylinder 514 and the bucket cylinder 514 assuming a high output required It is configured and connected to the first valve pack 310.
  • the second drive unit 520 has a high output, and may be connected to the second valve pack 320 by being configured with a trenching motor 521 and an arm crushing motor 522 corresponding to a tool driving device.
  • the swing motor 530 is preferably connected to the second valve pack 320 for independence from the driving drive.
  • the hydraulic pressure generating devices 210 and 220 are dualized by the first hydraulic pressure generating device 210 and the second hydraulic pressure generating device 220 which operate independently, and each of the hydraulic pressure generating devices 210 and 220 increases the flow rate. Pump to generate hydraulic pressure.
  • the first valve pack 310 and the second valve pack 320 may be configured to dualize flow rates supplied from the first hydraulic pressure generating device 210 and the second hydraulic pressure generating device 220, respectively. 2 is transmitted to the driver 520.
  • the redundant valve 400 is the first hydraulic line 311 and the second hydraulic line 321.
  • the first driver 510 and the second driver 520 may operate without interruption of work even when the total output is reduced.
  • the redundant valve 400 connects the first hydraulic line 311 and the second hydraulic line 321.
  • the hydraulic pressure may be supplied from another hydraulic generator 220 or 210 in addition to the connected hydraulic generator 210 or 220, so that a redundant function may be selectively implemented as necessary.
  • a hydraulic source for separately arranging the driving devices according to the use and the output specification and supplying them to each other may be supplied to the counterpart driving device as needed. Even if the hydraulic generator in the system fails, the redundancy function can be activated to supply the hydraulic source through other hydraulic generators, and the negative effect that the system is caused by external load can be minimized by disabling the redundancy function for precise control. It is possible.
  • hydraulic generators 210, 220 hydraulic generators 210, 220

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'objectif de la présente invention est de produire un système hydraulique, auquel une fonction de redondance facultative est appliquée, ayant des dispositifs d'entraînement agencés séparément en fonction des spécifications d'utilisation et de sortie et permettant à des sources hydrauliques apportées à chaque dispositif d'entraînement d'être apportées au dispositif d'entraînement de l'autre côté lorsque cela est nécessaire. À cet effet, un mode de réalisation de la présente invention décrit un système hydraulique auquel est appliquée la fonction de redondance facultative, comprenant : un réservoir pour apporter de l'huile de travail ; un premier dispositif hydraulique et un second dispositif hydraulique reliés au réservoir et agencés en parallèle ; un premier bloc de vannes relié à l'extrémité arrière du premier dispositif hydraulique, et ayant une première conduite hydraulique et une pluralité de vannes ; un second bloc de vannes relié à l'extrémité arrière du second dispositif hydraulique, et ayant une seconde conduite hydraulique et une pluralité de vannes ; une première partie d'entraînement comprenant une pluralité de dispositifs d'entraînement entraînés par pression hydraulique par l'intermédiaire du premier bloc de vannes ; une seconde partie d'entraînement comprenant une pluralité de dispositifs d'entraînement entraînés par pression hydraulique par l'intermédiaire du second bloc de valves ; et une vanne de redondance activée/désactivée entre le premier bloc de vannes et le second bloc de vannes de façon à relier ou désolidariser la première conduite hydraulique et la seconde conduite hydraulique.
PCT/KR2017/003118 2017-03-16 2017-03-23 Système hydraulique auquel une fonction de redondance facultative est appliquée WO2018169116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0033274 2017-03-16
KR1020170033274A KR20180107350A (ko) 2017-03-16 2017-03-16 선택적 이중화 기능이 적용된 유압시스템

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WO2018169116A1 true WO2018169116A1 (fr) 2018-09-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250043779A1 (en) * 2023-08-02 2025-02-06 Illinois Tool Works Inc. Hydraulic power generation pump control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0185493B1 (ko) * 1996-03-30 1999-04-01 토니헬샴 중장비용 유량 합류장치
KR20080001658A (ko) * 2006-06-29 2008-01-03 톰슨 라이센싱 멀티미디어 콘텐츠로의 원격 액세스를 위한 요구 관리 방법
KR20080105709A (ko) * 2007-06-01 2008-12-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 크롤러식 굴삭기의 주행모터 과속 방지장치
KR20140034808A (ko) * 2011-06-09 2014-03-20 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 유압시스템
KR20150121506A (ko) * 2014-04-21 2015-10-29 두산인프라코어 주식회사 건설기계의 유압시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0185493B1 (ko) * 1996-03-30 1999-04-01 토니헬샴 중장비용 유량 합류장치
KR20080001658A (ko) * 2006-06-29 2008-01-03 톰슨 라이센싱 멀티미디어 콘텐츠로의 원격 액세스를 위한 요구 관리 방법
KR20080105709A (ko) * 2007-06-01 2008-12-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 크롤러식 굴삭기의 주행모터 과속 방지장치
KR20140034808A (ko) * 2011-06-09 2014-03-20 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 유압시스템
KR20150121506A (ko) * 2014-04-21 2015-10-29 두산인프라코어 주식회사 건설기계의 유압시스템

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250043779A1 (en) * 2023-08-02 2025-02-06 Illinois Tool Works Inc. Hydraulic power generation pump control

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