Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC WORK MACHINE
To provide a hydraulic work machine with two hydraulic pumps independently driving left/right traveling motors, which can detect abnormality on both of left/right traveling devices with high accuracy.SOLUTION: A hydraulic work machine is provided with: a first pressure detect device 13 detecting a first pump pressure of a first hydraulic pump 11; and a second pressure detect device 23 detecting a second pump pressure of a second hydraulic pump 21, wherein a controller 2 calculates an abnormality determination evaluation value based on a differential pressure which is calculated by subtracting one of the first and second pump pressure from the other of them and determines that there is abnormality in either of left and right traveling devices based on a comparison result between the abnormality determination evaluation value and a predetermined criterion value 84, when only traveling operation devices 6, 7 are operated and left and right traveling devices 50, 60 are determined to be in a straight traveling situation.SELECTED DRAWING: Figure 7
【課題】２つの油圧ポンプで左右の走行モータを独立に駆動する油圧作業機械であって、左右の走行装置の異常を高い精度で検出できる油圧作業機械を提供する。【解決手段】第１油圧ポンプ１１の圧力である第１ポンプ圧力を検出する第１圧力検出装置１３と、第２油圧ポンプ２１の圧力である第２ポンプ圧力を検出する第２圧力検出装置２３とを備え、制御装置２は、走行操作装置６，７のみが操作され、かつ左右の走行装置５０，６０が直進走行中であると判定した場合に、前記第１および第２ポンプ圧力の一方から他方を差し引いた差圧値に基づいて異常判定評価値を算出し、この異常判定評価値と所定の判定基準値８４との比較結果に基づいて前記左右の走行装置のいずれか一方に異常があると判定する。【選択図】 図７
HYDRAULIC WORK MACHINE
To provide a hydraulic work machine with two hydraulic pumps independently driving left/right traveling motors, which can detect abnormality on both of left/right traveling devices with high accuracy.SOLUTION: A hydraulic work machine is provided with: a first pressure detect device 13 detecting a first pump pressure of a first hydraulic pump 11; and a second pressure detect device 23 detecting a second pump pressure of a second hydraulic pump 21, wherein a controller 2 calculates an abnormality determination evaluation value based on a differential pressure which is calculated by subtracting one of the first and second pump pressure from the other of them and determines that there is abnormality in either of left and right traveling devices based on a comparison result between the abnormality determination evaluation value and a predetermined criterion value 84, when only traveling operation devices 6, 7 are operated and left and right traveling devices 50, 60 are determined to be in a straight traveling situation.SELECTED DRAWING: Figure 7
【課題】２つの油圧ポンプで左右の走行モータを独立に駆動する油圧作業機械であって、左右の走行装置の異常を高い精度で検出できる油圧作業機械を提供する。【解決手段】第１油圧ポンプ１１の圧力である第１ポンプ圧力を検出する第１圧力検出装置１３と、第２油圧ポンプ２１の圧力である第２ポンプ圧力を検出する第２圧力検出装置２３とを備え、制御装置２は、走行操作装置６，７のみが操作され、かつ左右の走行装置５０，６０が直進走行中であると判定した場合に、前記第１および第２ポンプ圧力の一方から他方を差し引いた差圧値に基づいて異常判定評価値を算出し、この異常判定評価値と所定の判定基準値８４との比較結果に基づいて前記左右の走行装置のいずれか一方に異常があると判定する。【選択図】 図７
HYDRAULIC WORK MACHINE
油圧作業機械
UDAGAWA TSUTOMU (Autor:in) / SAKURAI SHIGEYUKI (Autor:in) / SUZUKI YUKIHITO (Autor:in)
28.03.2019
Patent
Elektronische Ressource
Japanisch