A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE WITH THIS HYDRAULIC SYSTEM
PROBLEM TO BE SOLVED: To enable appropriate working oil to be supplied to a hydraulic actuator and a consumption horse power of a pump to be restricted.SOLUTION: A hydraulic system for a work machine comprises: a hydraulic actuator; a connecting part for connecting the hydraulic actuator; a constant capacity type first hydraulic pump for discharging working oil; a constant capacity type second hydraulic pump for discharging working oil that is different from the first hydraulic pump; a first oil passage for connecting the connecting part with the first hydraulic pump; a second oil passage for connecting the second hydraulic pump with the first oil passage; a control valve arranged at the second oil passage to shut off or communicate with the second oil passage; a first relief valve arranged at the first oil passage; and a second relief valve arranged at the second oil passage.SELECTED DRAWING: Figure 1
【課題】油圧アクチュエータに適正な作動油を供給可能で、ポンプの消費馬力を抑制することができるようにする。【解決手段】作業機の油圧システムは、油圧アクチュエータと、前記油圧アクチュエータを接続する接続部と、定容量型のポンプであって、作動油を吐出する第１油圧ポンプと、定容量型のポンプであって、作動油を吐出し且つ前記第１油圧ポンプとは異なる第２油圧ポンプと、前記接続部と第１油圧ポンプとを連結する第１油路と、前記第２油圧ポンプと前記第１油路とを連結する第２油路と、前記第２油路に設けられ且つ当該第２油路の遮断又は連通を行う制御弁と、前記第１油路に設けられた第１リリーフ弁と、前記第２油路に設けられた第２リリーフ弁と、を備えている。【選択図】図１
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE WITH THIS HYDRAULIC SYSTEM
PROBLEM TO BE SOLVED: To enable appropriate working oil to be supplied to a hydraulic actuator and a consumption horse power of a pump to be restricted.SOLUTION: A hydraulic system for a work machine comprises: a hydraulic actuator; a connecting part for connecting the hydraulic actuator; a constant capacity type first hydraulic pump for discharging working oil; a constant capacity type second hydraulic pump for discharging working oil that is different from the first hydraulic pump; a first oil passage for connecting the connecting part with the first hydraulic pump; a second oil passage for connecting the second hydraulic pump with the first oil passage; a control valve arranged at the second oil passage to shut off or communicate with the second oil passage; a first relief valve arranged at the first oil passage; and a second relief valve arranged at the second oil passage.SELECTED DRAWING: Figure 1
【課題】油圧アクチュエータに適正な作動油を供給可能で、ポンプの消費馬力を抑制することができるようにする。【解決手段】作業機の油圧システムは、油圧アクチュエータと、前記油圧アクチュエータを接続する接続部と、定容量型のポンプであって、作動油を吐出する第１油圧ポンプと、定容量型のポンプであって、作動油を吐出し且つ前記第１油圧ポンプとは異なる第２油圧ポンプと、前記接続部と第１油圧ポンプとを連結する第１油路と、前記第２油圧ポンプと前記第１油路とを連結する第２油路と、前記第２油路に設けられ且つ当該第２油路の遮断又は連通を行う制御弁と、前記第１油路に設けられた第１リリーフ弁と、前記第２油路に設けられた第２リリーフ弁と、を備えている。【選択図】図１
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE WITH THIS HYDRAULIC SYSTEM
作業機の油圧システム及びこの油圧システムを備えた作業機
FUKUDA YUJI (author) / ARII KAZUYOSHI (author)
2016-07-11
Patent
Electronic Resource
Japanese
| European Patent Office | 2016
HYDRAULIC SYSTEM FOR WORK MACHINE, WORK MACHINE, AND METHOD FOR CONTROLLING HYDRAULIC SYSTEM
| European Patent Office | 2021