The invention relates to the field of crane lifting appliance equipment, in particular to an automatic unhooking lifting appliance and method for large semi-closed pipe parts, the lifting appliance comprises a lifting rod and a balance weight plate, the balance weight plate is in sliding fit at the center and is limited on the lifting rod, and a plurality of V-shaped limiting mechanisms which deform along with movement of the lifting rod are hinged between the lifting rod and the balance weight plate; the V-shaped limiting mechanism abuts against the inner wall of the workpiece after contracting and deforming. The method comprises the steps that the lifting rod and the balance weight plate are moved, the lifting rod and the V-shaped limiting mechanism in the stretching state stretch into a workpiece, meanwhile, the balance weight plate makes contact with the surface of the workpiece and makes contact with the surface of the workpiece all the time under the gravity, then the lifting rod is moved, the V-shaped limiting mechanism is driven to contract and deform, and the V-shaped limiting mechanism abuts against the inner wall face of the workpiece for lifting. The lifting rod is moved downwards, then the V-shaped limiting mechanism is driven to stretch and deform, the lifting rod is pulled open, and the counterweight plate and the V-shaped limiting mechanism complete unhooking. The lifting appliance is high in lifting and unhooking speed, cannot be influenced by a workpiece machining procedure, and is more durable.

    本发明涉及起重机吊具设备领域,具体涉及一种大型半封闭管类零件自动脱钩吊具及方法,吊具包括吊杆和配重板,配重板于中心处滑动配合并限位在吊杆上,吊杆与配重板之间铰接有多个随吊杆移动而变形的V形限位机构,V形限位机构收缩变形后抵到工件内壁上;方法包括,移动吊杆和配重板,让吊杆和处于拉伸状态的V形限位机构伸入工件内,同时配重板接触到工件表面且配重板在重力下始终接触工件表面,再移动吊杆并带动V形限位机构收缩变形,让V形限位机构抵到工件内壁面上进行起吊,将吊杆往下移动,再带动V形限位机构拉伸变形,拉开吊杆、配重板和V形限位机构完成脱钩。本发明起吊和脱钩速度快,吊具也不会受到工件加工工序的影响,更耐用。


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    Titel :

    Automatic unhooking lifting appliance and method for large semi-closed pipe parts


    Weitere Titelangaben:

    一种大型半封闭管类零件自动脱钩吊具及方法


    Beteiligte:
    ZHANG WEI (Autor:in) / LI PEIHAI (Autor:in) / DUAN YIXIAN (Autor:in) / LIU TAO (Autor:in) / LUO ZHENGZHANG (Autor:in) / XIANG XIAOQIN (Autor:in) / PENG BISHENG (Autor:in) / AI MINGPING (Autor:in)

    Erscheinungsdatum :

    2023-02-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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