The invention discloses an expansion mandrel tool, relates to the technical field of ship gangplanks, and solves the technical problem that a hinge for mounting a ship body and a gangplank passes through a tool dummy shaft in the prior art, so that the universality defect exists. The expansion mandrel tool comprises an expansion sleeve, an expansion shaft and a functional part, the outer edge of the expansion sleeve is in a cylindrical surface shape, a circular truncated cone inner hole distributed in the axial direction is formed in the expansion sleeve, the expansion shaft penetrates through the inner hole of the expansion sleeve, the expansion shaft comprises a circular truncated cone section and a functional section connected with the top face of the circular truncated cone section, and the functional part is installed outside the expansion sleeve and connected with the functional section. The expansion sleeve and the expansion shaft are relatively fixed, and the expansion shaft can axially move in the circular truncated cone inner hole of the expansion sleeve. The expansion mandrel tool can be installed in hinge shaft holes with different hole diameters, can be used in cooperation with a single hinge, is not limited by the size of a springboard, the number of hinges and the distance between the hinges, and is good in universality; and the expansion mandrel tool can also be used as a short dummy shaft, is favorable for mounting and dismounting, and does not get stuck and construction space.

    本发明公开一种膨胀芯轴工装,涉及船舶跳板技术领域,解决了相关技术中船体与跳板安装用的铰链通过工装假轴而存在的通用性缺陷的技术问题。膨胀芯轴工装包括膨胀套、膨胀轴和功能件,膨胀套的外缘呈圆柱面设置,膨胀套内设置有沿轴向分布的圆台内孔,膨胀轴穿设于膨胀套的内孔,膨胀轴包括圆台段和与圆台段顶面连接的功能段,功能件安装于膨胀套外,功能件与功能段连接,以相对固定膨胀套和膨胀轴且可使膨胀轴于膨胀套的圆台内孔内进行轴向移动。通过本申请的膨胀芯轴工装,可以安装到不同孔径的铰链轴孔中,且可与单个铰链配合使用,不受跳板尺寸、铰链数量与铰链间距的限制,通用性好;还可作短假轴使用,有利于安装、拆卸、不卡死和施工空间。


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    Titel :

    Expansion mandrel tool and ship springboard mounting method


    Weitere Titelangaben:

    一种膨胀芯轴工装及船舶跳板安装方法


    Beteiligte:
    BAI JUNLI (Autor:in) / ZHANG LIN (Autor:in) / MENG QINGDA (Autor:in) / YANG XI (Autor:in)

    Erscheinungsdatum :

    2022-02-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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