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A platform for research: civil engineering, architecture and urbanism
HYDRAULIC DRIVING DEVICE
To provide a hydraulic driving device capable of accurately measuring a leakage flow rate of a hydraulic pump regardless of a level of a leakage flow rate of a relief valve.SOLUTION: A controller 30 holds a discharge flow rate of a first hydraulic pump 12a at the time when a discharge pressure of the first hydraulic pump reaches a specific pressure, as a first pump theoretical flow rate, holds a discharge flow rate of a second hydraulic pump 12b at the time when a discharge pressure of the second hydraulic pump reaches the specific pressure, as a second pump theoretical flow rate, holds a total discharge floe rate of the first hydraulic pump and the second hydraulic pump at the time when each of the discharge pressures of the first hydraulic pump and the second hydraulic pump reaches the specific pressure, as a total pump theoretical flow rate and, based on the first pump theoretical flow rate, the second pump theoretical flow rate and the total pump theoretical flow rate, calculates leakage flow rates of the first hydraulic pump and the second hydraulic pump.SELECTED DRAWING: Figure 4
【課題】リリーフ弁の漏れ流量の大小にかかわらず、油圧ポンプの漏れ流量を正確に測定できる油圧駆動装置を提供する。【解決手段】コントローラ３０は、第１油圧ポンプ１２ａの吐出圧が規定圧力に達したときの前記第１油圧ポンプの吐出流量を第１ポンプ理論流量として保持し、第２油圧ポンプ１２ｂの吐出圧が前記規定圧力に達したときの前記第２油圧ポンプの吐出流量を第２ポンプ理論流量として保持し、前記第１油圧ポンプおよび前記第２油圧ポンプの各吐出圧が前記規定圧力に達したときの前記第１油圧ポンプおよび前記第２油圧ポンプの合計吐出流量を合計ポンプ理論流量として保持し、前記第１ポンプ理論流量、前記第２ポンプ理論流量、および前記合計ポンプ理論流量に基づいて、前記第１油圧ポンプおよび前記第２油圧ポンプの各漏れ流量を算出する。【選択図】図４
HYDRAULIC DRIVING DEVICE
To provide a hydraulic driving device capable of accurately measuring a leakage flow rate of a hydraulic pump regardless of a level of a leakage flow rate of a relief valve.SOLUTION: A controller 30 holds a discharge flow rate of a first hydraulic pump 12a at the time when a discharge pressure of the first hydraulic pump reaches a specific pressure, as a first pump theoretical flow rate, holds a discharge flow rate of a second hydraulic pump 12b at the time when a discharge pressure of the second hydraulic pump reaches the specific pressure, as a second pump theoretical flow rate, holds a total discharge floe rate of the first hydraulic pump and the second hydraulic pump at the time when each of the discharge pressures of the first hydraulic pump and the second hydraulic pump reaches the specific pressure, as a total pump theoretical flow rate and, based on the first pump theoretical flow rate, the second pump theoretical flow rate and the total pump theoretical flow rate, calculates leakage flow rates of the first hydraulic pump and the second hydraulic pump.SELECTED DRAWING: Figure 4
【課題】リリーフ弁の漏れ流量の大小にかかわらず、油圧ポンプの漏れ流量を正確に測定できる油圧駆動装置を提供する。【解決手段】コントローラ３０は、第１油圧ポンプ１２ａの吐出圧が規定圧力に達したときの前記第１油圧ポンプの吐出流量を第１ポンプ理論流量として保持し、第２油圧ポンプ１２ｂの吐出圧が前記規定圧力に達したときの前記第２油圧ポンプの吐出流量を第２ポンプ理論流量として保持し、前記第１油圧ポンプおよび前記第２油圧ポンプの各吐出圧が前記規定圧力に達したときの前記第１油圧ポンプおよび前記第２油圧ポンプの合計吐出流量を合計ポンプ理論流量として保持し、前記第１ポンプ理論流量、前記第２ポンプ理論流量、および前記合計ポンプ理論流量に基づいて、前記第１油圧ポンプおよび前記第２油圧ポンプの各漏れ流量を算出する。【選択図】図４
HYDRAULIC DRIVING DEVICE
油圧駆動装置
UDAGAWA TSUTOMU (author) / SAKURAI SHIGEYUKI (author) / YAMAMOTO JUNJI (author) / SUZUKI YUKIHITO (author)
2020-02-06
Patent
Electronic Resource
Japanese