WORK MACHINE CONTROL DEVICE

• Main Authors: KURASAKO AKIRA, AKITA HIDEKI
• Format: Patent
• Language: English; Japanese
• Published: 11.03.2021
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DREDGING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SOIL SHIFTING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

To provide a control device for a work machine that can deal with water mixed in the hydraulic oil used for a hydraulic system of the work machine.SOLUTION: A control device 190 of a work machine comprises a storage device 191 that stores a rate-of-change-reference value, which is a threshold value of a rate of change in viscosity of hydraulic oil; and a processing device 192 connected to a viscosity sensor 170, a notification device 180, and the storage device 191. The processing device 192 records a viscosity input from the viscosity sensor 170 from start to stop of the work machine 100, in the storage device 191 as time-series viscosity data. Further, the processing device 192 compares the rate of change in viscosity calculated based on the time-series viscosity data with the rate-of-change-reference value, and outputs the result of the comparison to the notification device 180.SELECTED DRAWING: Figure 1 【課題】作業機械の油圧装置に用いられる作動油に混入する水に対処可能な、作業機械の制御装置を提供する。【解決手段】作業機械の制御装置１９０は、作動油の粘度の変化率のしきい値である変化率基準値が記憶される記憶装置１９１と、粘度センサ１７０と報知装置１８０と記憶装置１９１とに接続される処理装置１９２と、を備える。処理装置１９２は、作業機械１００の始動から停止まで粘度センサ１７０から入力された粘度を記憶装置１９１に時系列粘度データとして記録する。また、処理装置１９２は、その時系列粘度データに基づいて算出した粘度の変化率を変化率基準値と比較し、その比較の結果を報知装置１８０に出力する。【選択図】図１