A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BOOM CONTROL SYSTEM OF WORK MACHINE
To provide a boom control system of a work machine with a boom float function adjustable according to application.SOLUTION: A boom cylinder 10 drives a boom 6 and has a head side oil chamber 10h and a bottom side oil chamber 10b. A first valve 21 has a first opening 21c for discharging oil of the head side oil chamber 10h to an oil tank 25 and supplies oil from a hydraulic pump 20 to the head side oil chamber 10h. A second valve 22 has a second opening 22c for discharging the oil in the bottom side oil chamber 10b to the oil tank 25, and supplies the oil from the hydraulic pump 20 to the bottom side oil chamber 10b. A controller 30 controls an opening degree D1 of the first opening 21c and an opening degree D2 of the second opening 22c separately, in work including operation of the boom 6.SELECTED DRAWING: Figure 2
【課題】用途に応じてブームフロート機能を調整可能な作業機械のブーム制御システムを提供する。【解決手段】ブームシリンダ１０は、ブーム６を駆動し、ヘッド側油室１０ｈおよびボトム側油室１０ｂを有する。第１バルブ２１は、ヘッド側油室１０ｈの油を油タンク２５へ排出する第１開口部２１ｃを有し、油圧ポンプ２０からの油をヘッド側油室１０ｈに供給する。第２バルブ２２は、ボトム側油室１０ｂの油を油タンク２５へ排出する第２開口部２２ｃを有し、油圧ポンプ２０からの油をボトム側油室１０ｂに供給する。コントローラ３０は、ブーム６の操作を含む作業の際に、第１開口部２１ｃの開口度合いＤ１と、第２開口部２２ｃの開口度合いＤ２とを個別に制御する。【選択図】図２
BOOM CONTROL SYSTEM OF WORK MACHINE
To provide a boom control system of a work machine with a boom float function adjustable according to application.SOLUTION: A boom cylinder 10 drives a boom 6 and has a head side oil chamber 10h and a bottom side oil chamber 10b. A first valve 21 has a first opening 21c for discharging oil of the head side oil chamber 10h to an oil tank 25 and supplies oil from a hydraulic pump 20 to the head side oil chamber 10h. A second valve 22 has a second opening 22c for discharging the oil in the bottom side oil chamber 10b to the oil tank 25, and supplies the oil from the hydraulic pump 20 to the bottom side oil chamber 10b. A controller 30 controls an opening degree D1 of the first opening 21c and an opening degree D2 of the second opening 22c separately, in work including operation of the boom 6.SELECTED DRAWING: Figure 2
【課題】用途に応じてブームフロート機能を調整可能な作業機械のブーム制御システムを提供する。【解決手段】ブームシリンダ１０は、ブーム６を駆動し、ヘッド側油室１０ｈおよびボトム側油室１０ｂを有する。第１バルブ２１は、ヘッド側油室１０ｈの油を油タンク２５へ排出する第１開口部２１ｃを有し、油圧ポンプ２０からの油をヘッド側油室１０ｈに供給する。第２バルブ２２は、ボトム側油室１０ｂの油を油タンク２５へ排出する第２開口部２２ｃを有し、油圧ポンプ２０からの油をボトム側油室１０ｂに供給する。コントローラ３０は、ブーム６の操作を含む作業の際に、第１開口部２１ｃの開口度合いＤ１と、第２開口部２２ｃの開口度合いＤ２とを個別に制御する。【選択図】図２
BOOM CONTROL SYSTEM OF WORK MACHINE
作業機械のブーム制御システム
YAMAKOSHI YOSUKE (author)
2022-08-26
Patent
Electronic Resource
Japanese
BOOM FOR WORK MACHINE, WORK MACHINE, AND PRODUCTION METHOD OF BOOM FOR WORK MACHINE
| European Patent Office | 2024