The invention relates to grab buckets, in particular to an object size self-adaptable type grab bucket. The object size self-adaptable type grab bucket comprises a top plate, a pull rod, a first-level grab bucket body, first-level hydraulic rods, a second-level grab bucket body, second-level hydraulic rods, a third-level grab bucket body and third-level hydraulic rods, wherein the tail portion of the first-level grab bucket body is hinged to the pull rod; the tail portion of the second-level grab bucket body is hinged to cross rods at the tail portion of the first-level grab bucket body; one ends of the second-level hydraulic rods are hinged to the first-level grab bucket body, and the other ends of the second-level hydraulic rods are hinged to cross rods in the middles of the second-level grab bucket body; the second-level hydraulic rods are used for driving the second-level grab bucket body to conduct opening and closing movement; the tail portion of the third-level grab bucket body is hinged to cross rods at the tail portion of the second-level grab bucket body; one ends of the third-level hydraulic rods are hinged to the second-level grab bucket body, and the other ends of the third-level hydraulic rods are hinged to cross rods in the middles of the third-level grab bucket body. The first-level grab bucket body can be used when objects with small diameters are grabbed; when objects with large diameters are grabbed, the second-level grab bucket body, the third-level grab bucket body and the first-level grab bucket body are used cooperatively, and the applicability of the grab bucket to the sizes of grabbed objects can be effectively improved.


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    Titel :

    Object size self-adaptable type grab bucket


    Beteiligte:
    ZHU NENGWEI (Autor:in) / XU XULIU (Autor:in)

    Erscheinungsdatum :

    28.10.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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