WORK MACHINE, AND METHOD FOR CONTROLLING WORK MACHINE

To easily and appropriately adjust a pitch angle of a blade in a work machine.SOLUTION: A lift frame is supported on a vehicle body so as to be rotatable around a lift shaft. A blade is rotatably supported on the lift frame so as to be rotatable around a pitch shaft. A lift actuator is connected to...

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Bibliographic Details
Main Authors KAMIKAWA SHINOBU, NAKANO YUICHI
Format Patent
LanguageEnglish
Japanese
Published 10.11.2022
Subjects
DREDGING
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
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Summary:To easily and appropriately adjust a pitch angle of a blade in a work machine.SOLUTION: A lift frame is supported on a vehicle body so as to be rotatable around a lift shaft. A blade is rotatably supported on the lift frame so as to be rotatable around a pitch shaft. A lift actuator is connected to the lift frame and the vehicle body, and vertically lift-operates the lift frame around the lift shaft. A pitch actuator is connected to the blade and the lift frame, and pitch-operates the blade around the pitch shaft. A sensor detects a height of the blade from a reference height determined based on the vehicle body. A controller controls the pitch actuator so as to change a pitch angle of the blade according to a height of the blade.SELECTED DRAWING: Figure 5 【課題】作業機械において、ブレードのピッチ角を容易、且つ、適切に調整可能とする。【解決手段】リフトフレームは、車体に対してリフト軸回りに回動可能に支持される。ブレードは、リフトフレームに対してピッチ軸回りに回動可能に支持される。リフトアクチュエータは、リフトフレームと車体とに接続され、リフトフレームをリフト軸回りに上下にリフト動作させる。ピッチアクチュエータは、ブレードとリフトフレームとに接続され、ブレードをピッチ軸回りにピッチ動作させる。センサは、車体に基づいて定められる基準高さからのブレードの高さを検出する。コントローラは、ブレードの高さに応じて、ブレードのピッチ角を変更するようにピッチアクチュエータを制御する。【選択図】図５
Bibliography:Application Number: JP20210076600