BR112022022935A2 - Sistema de bomba sensível à carga, sistema de controle hidráulico e maquinaria de construção - Google Patents

Sistema de bomba sensível à carga, sistema de controle hidráulico e maquinaria de construção

Info

Publication number
BR112022022935A2
BR112022022935A2 BR112022022935A BR112022022935A BR112022022935A2 BR 112022022935 A2 BR112022022935 A2 BR 112022022935A2 BR 112022022935 A BR112022022935 A BR 112022022935A BR 112022022935 A BR112022022935 A BR 112022022935A BR 112022022935 A2 BR112022022935 A2 BR 112022022935A2
Authority
BR
Brazil
Prior art keywords
control
variable displacement
pump
load
hydraulic control
Prior art date
Application number
BR112022022935A
Other languages
English (en)
Inventor
Xiang Xiaoqiang
Liu Donghong
Tong Meng
Wang Jiancheng
Chen Long
Original Assignee
Xuzhou Heavy Machinery Co Ltd
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 Xuzhou Heavy Machinery Co Ltd filed Critical Xuzhou Heavy Machinery Co Ltd
Publication of BR112022022935A2 publication Critical patent/BR112022022935A2/pt

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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • 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

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)

Abstract

SISTEMA DE BOMBA SENSÍVEL À CARGA, SISTEMA DE CONTROLE HIDRÁULICO E MAQUINARIA DE ENGENHARIA. Um sistema de bomba de detecção de carga, um sistema de controle hidráulico e maquinaria de construção. O sistema de bomba de detecção de carga compreende: uma bomba de deslocamento variável (1); uma bomba de deslocamento fixo (2), acionada por um mesmo mecanismo de acionamento que a bomba de deslocamento variável (1); um mecanismo de controle de deslocamento variável, utilizado para controlar a bomba de deslocamento variável (1); um circuito de óleo de controle e uma válvula de pressão (3), configurada para fazer, por meio do circuito de óleo de controle, parte de pressão de saída da bomba de deslocamento fixo (2) atuar sobre uma extremidade de controle do mecanismo de controle de deslocamento variável, de modo a aumentar o deslocamento máximo da bomba de deslocamento variável (1) quando a velocidade de rotação de acionamento do mecanismo de acionamento aumenta.
BR112022022935A 2020-05-11 2020-05-11 Sistema de bomba sensível à carga, sistema de controle hidráulico e maquinaria de construção BR112022022935A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/089616 WO2021226791A1 (zh) 2020-05-11 2020-05-11 负载敏感泵系统、液压控制系统和工程机械

Publications (1)

Publication Number Publication Date
BR112022022935A2 true BR112022022935A2 (pt) 2022-12-20

Family

ID=78526063

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022022935A BR112022022935A2 (pt) 2020-05-11 2020-05-11 Sistema de bomba sensível à carga, sistema de controle hidráulico e maquinaria de construção

Country Status (2)

Country Link
BR (1) BR112022022935A2 (pt)
WO (1) WO2021226791A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115110596B (zh) * 2022-07-26 2023-12-19 山河智能装备股份有限公司 一种液压控制系统
CN116044732B (zh) * 2022-12-26 2024-06-11 厦门大学 一种三级压力控制系统及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11236902A (ja) * 1997-11-11 1999-08-31 Komatsu Ltd 油圧装置
CN103882906B (zh) * 2013-12-30 2016-04-13 华侨大学 一种具有负载敏感的挖掘机负流量系统
CN109319676B (zh) * 2018-11-30 2020-05-08 武汉船用机械有限责任公司 一种电液比例多液压绞车控制系统及其控制策略

Also Published As

Publication number Publication date
WO2021226791A1 (zh) 2021-11-18

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Legal Events

Date Code Title Description
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]