To provide a hoisting machine capable of estimating a motor temperature and having high conveyance efficiency.SOLUTION: Provided is a hoisting machine having a motor and controlling the motor to hoist or lower a suspended load, the hoisting machine including: a motor drive signal acquisition unit that acquires a drive signal of the motor; a relation information storage unit that stores, as relation information, a relation between the drive signal at preset timing and a motor temperature; and a temperature estimation unit that in a process of operation of hoisting or lowering, estimates the motor temperature from a motor drive signal at the timing acquired from the motor drive signal acquisition unit and the relation information.SELECTED DRAWING: Figure 3
【課題】 モータ温度を推定できるとともに、搬送効率の高い巻上機を提供する。【解決手段】 モータを有し、モータを制御して吊荷の巻上げもしくは巻下げを行う巻上機であって、モータの駆動信号を取得するモータ駆動信号取得部と、定めておいたタイミングにおける駆動信号と、モータ温度との関係を関係情報として保存した関係情報記憶部と、巻上げもしくは巻下げの運転の過程で、モータ駆動信号取得部から取得した、タイミングにおけるモータ駆動信号と、関係情報とから、モータ温度を推定する温度推定部とを有する巻上機。【選択図】図3
HOISTING MACHINE, HOISTING MACHINE SYSTEM, AND STATE ESTIMATION DEVICE
巻上機、巻上機システム、および状態推定装置
2024-01-19
Patent
Electronic Resource
Japanese
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