An electric crane contains: a body and an electrical box. The body includes a drive device, a roller, a lift assembly, and a hanging assembly. The electrical box is electrically connected with an operation lever configured to be manually controlled by a user, and the operation lever has multiple switches. The drive device is a permanent magnet servo motor and has an encoder. The electrical box includes a control unit electrically connected with the encoder to feed back a detected position of a rotator of the permanent magnet servo motor and to compare whether an operating instruction of the permanent magnet servo motor matches with a rotating speed of the permanent magnet servo motor. The operation lever has a rotary hand wheel. The operation lever has a pulse signal generator. The pulse signal generator is electrically connected with the electrical box.


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    Titel :

    Electric crane capable of being adjustably moved and positioned


    Beteiligte:
    PAN YIDE (Autor:in)

    Erscheinungsdatum :

    19.09.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES , Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen



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