PROBLEM TO BE SOLVED: To secure large lifting ability and besides to suppress an axial-direction width of a winch drum.SOLUTION: An electric winch device 1A comprises a winch drum 2, a drive source 3 and a drive shaft 4. The winch drum 2 rotates around a drum shaft, for winding or feeding a wire rope W. The drive source 3 comprises a first electromotor 3A and second electromotor 3B connected in series, for rotationally driving the winch drum 2. Each of the electromotors 3A, 3B is an axial gap type electromotor comprising a stator, and a rotor which rotates around a rotation shaft, and arranged with a gap in an axial direction with respect to the stator. The drive shaft 4 is arranged coaxially with the drum shaft, and connects the rotors of the first and second electromotors 3A, 3B in series on the shaft of the rotation shaft.SELECTED DRAWING: Figure 4

    【課題】大きな吊能力を確保しつつ、ウインチドラムの軸方向における幅を抑制する。【解決手段】電動ウインチ装置1Aは、ウインチドラム2、駆動源3及び駆動軸4を含む。ウインチドラム2は、ワイヤロープWの巻き取り又は繰り出しのために、ドラム軸回りに回転する。駆動源3は、ウインチドラム2を回転駆動するものであって、直列的に連結された第1電動機3A及び第2電動機3Bを含む。これら電動機3A、3Bは、固定子と、回転軸回りに回転し前記固定子に対して軸方向に間隔を空けて配置された回転子と、を備えるアキシャルギャップ型の電動機である。駆動軸4は、前記ドラム軸と同じ軸上に配置され、第1、第2電動機3A、3Bの前記回転子を前記回転軸の軸上において直列に連結してなる。【選択図】図4


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    Title :

    ELECTRIC WINCH DEVICE AND MOBILE CRANE


    Additional title:

    電動ウインチ装置及び移動式クレーン


    Contributors:

    Publication date :

    2017-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / B66C Krane , CRANES



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