BR112015016670A2 - dispositivo de controle de fluxo e método de controle de fluxo para máquina de construção - Google Patents

dispositivo de controle de fluxo e método de controle de fluxo para máquina de construção

Info

Publication number
BR112015016670A2
BR112015016670A2 BR112015016670A BR112015016670A BR112015016670A2 BR 112015016670 A2 BR112015016670 A2 BR 112015016670A2 BR 112015016670 A BR112015016670 A BR 112015016670A BR 112015016670 A BR112015016670 A BR 112015016670A BR 112015016670 A2 BR112015016670 A2 BR 112015016670A2
Authority
BR
Brazil
Prior art keywords
flow control
hydraulic
hydraulic cylinder
hydraulic pump
fluid
Prior art date
Application number
BR112015016670A
Other languages
English (en)
Inventor
JOUNG Hea-Gyoon
Kim Sung-Gon
Original Assignee
Volvo Constr Equip Ab
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 Volvo Constr Equip Ab filed Critical Volvo Constr Equip Ab
Publication of BR112015016670A2 publication Critical patent/BR112015016670A2/pt

Links

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
    • 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
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • 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
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • 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
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B13/026—Pressure compensating 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
    • 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
    • F15B13/027—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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3133—Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke
    • 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

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)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

resumo dispositivo de controle de fluxo e método de controle de fluxo para máquina de construção são revelados um dispositivo de controle de fluxo e um método de controle de fluxo para máquina de construção para evitar a perda de fluido descartado de uma bomba hidráulica quando uma lança e um braço de uma escavadeira são operados em combinação. o dispositivo de controle de fluxo para uma máquina de construção de acordo com a presente invenção inclui: um motor; uma bomba hidráulica de capacidade variável conectada ao motor; um primeiro cilindro hidráulico e um segundo cilindro hidráulico conectado à bomba hidráulica; uma primeira válvula de controle disposta em um canal de desvio central da bomba hidráulica, a primeira válvula de controle, em estado neutro, retornando o fluido descartado da bomba hidráulica a um tanque hidráulico e, quando ligada, controlando a propulsão, interrupção e mudança de direção do primeiro cilindro hidráulico; uma segunda válvula de controle disposta a jusante do canal de desvio central da bomba hidráulica, a segunda válvula de controle, em estado neutro, retornando o fluido descartado da bomba hidráulica ao tanque hidráulico e, quando ligada, controlando a propulsão, interrupção e mudança de direção do segundo cilindro hidráulico; um canal de fluido de regeneração para complementação e reutilização do fluido retornado ao tanque hidráulico durante um curso de compressão do primeiro cilindro hidráulico, e uma válvula de regeneração disposta no canal de fluido de regeneração; e uma válvula de controle de fluxo controlada por pressão, que é disposta em um canal de fluido de medição de entrada de um tambor da primeira válvula de controle e limita a quantidade de fluido do motor fornecido da bomba hidráulica ao primeiro cilindro hidráulico quando o primeiro cilindro hidráulico e o segundo cilindro hidráulico são operados em combinação. 1/1
BR112015016670A 2013-01-18 2013-01-18 dispositivo de controle de fluxo e método de controle de fluxo para máquina de construção BR112015016670A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/000433 WO2014112668A1 (ko) 2013-01-18 2013-01-18 건설기계의 유량 제어장치 및 제어방법

Publications (1)

Publication Number Publication Date
BR112015016670A2 true BR112015016670A2 (pt) 2017-07-11

Family

ID=51209752

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015016670A BR112015016670A2 (pt) 2013-01-18 2013-01-18 dispositivo de controle de fluxo e método de controle de fluxo para máquina de construção

Country Status (7)

Country Link
US (1) US10001146B2 (pt)
EP (1) EP2947211B1 (pt)
KR (1) KR101760038B1 (pt)
CN (1) CN104919116B (pt)
BR (1) BR112015016670A2 (pt)
CA (1) CA2897003C (pt)
WO (1) WO2014112668A1 (pt)

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EP3201475B1 (en) * 2014-09-29 2018-12-19 Parker Hannifin Corporation Directional control valve
WO2017056199A1 (ja) * 2015-09-29 2017-04-06 日立建機株式会社 建設機械
JP6474718B2 (ja) * 2015-12-25 2019-02-27 日立建機株式会社 建設機械の油圧制御装置
KR102561435B1 (ko) 2016-08-31 2023-07-31 에이치디현대인프라코어 주식회사 건설기계의 제어 시스템 및 건설기계의 제어 방법
KR102582826B1 (ko) 2016-09-12 2023-09-26 에이치디현대인프라코어 주식회사 건설기계의 제어 시스템 및 건설기계의 제어 방법
CN107299655A (zh) * 2017-08-09 2017-10-27 太原科技大学 一种挖掘机的动臂下降速度控制回路
CN107965565B (zh) * 2017-10-31 2020-04-14 中国第一汽车股份有限公司 一种湿式离合器自动变速器液压润滑系统及其控制方法
EP3620582B1 (en) * 2018-09-10 2022-03-09 Artemis Intelligent Power Limited Apparatus comprising a hydraulic circuit
CN109695265B (zh) * 2019-02-22 2023-12-15 江苏汇智高端工程机械创新中心有限公司 液压系统和工程车辆
US11408449B2 (en) * 2019-09-27 2022-08-09 Topcon Positioning Systems, Inc. Dithering hydraulic valves to mitigate static friction
CN115342091A (zh) * 2021-05-12 2022-11-15 哈威油液压技术(无锡)有限公司 液压控制系统
JP7439036B2 (ja) * 2021-11-01 2024-02-27 株式会社竹内製作所 作業用車両の作動制御装置
DE102021213691A1 (de) * 2021-12-02 2023-06-07 Robert Bosch Gesellschaft mit beschränkter Haftung Ventilanordnung mit vorgespanntem Steuerölrücklauf

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Also Published As

Publication number Publication date
US20150361995A1 (en) 2015-12-17
CN104919116B (zh) 2017-12-19
EP2947211B1 (en) 2018-09-26
EP2947211A1 (en) 2015-11-25
KR101760038B1 (ko) 2017-07-20
KR20150104113A (ko) 2015-09-14
CA2897003A1 (en) 2014-07-24
CN104919116A (zh) 2015-09-16
US10001146B2 (en) 2018-06-19
CA2897003C (en) 2018-01-02
EP2947211A4 (en) 2016-09-28
WO2014112668A1 (ko) 2014-07-24

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