The invention relates to an improved jack. The jack is composed of a jack body, a magnet part, a bearing and a lifting mechanism and further comprises a conversion device and a connecting mechanism, wherein the conversion device comprises a non-return bearing, a converter, an adjusting spring, a chain, a bayonet lock and an adjusting spring, the periphery of the non-return bearing is wrapped in an aluminum sleeve, a clockwork spring is arranged on one side of the converter, the non-return bearing, a magnetic core and the bearing are connected through the converter, and the converter is fixedly provided with a chain interface; and the connecting mechanism comprises a connector, a key groove and a key pin, wherein inclined grooves are formed in the two ends of the connector, the key groove and the key pin are arranged at the two ends of the connector, and the key pin is installed in the key groove, so that the whole jack is more compact in structure, higher in holding force, zero in magnetic circuit design residual magnetism and higher in safety coefficient, the maximum pulling-out force is 2.8-4 times of rated lifting force, and the jack is low in failure rate, safe and reliable, can be widely applied to lifting carrying and mounting and carrying in the fields of leveling mechanical parts, the traffic transportation industry and the like, and is smaller in size and lighter in dead weight.

    本发明涉及一种改进型起重器,它由起重器主体、磁体部、轴承和起吊机构组成,还包括转换装置,转换装置包括逆止轴承,转换器、调节弹簧、链条、卡销和调节弹簧,逆止轴承外围包覆有铝套,转换器一侧设有发条弹簧,逆止轴承、磁芯和轴承通过转换器相连接,转换器固定有链条接口;连接机构,连接机构包括连接器、键槽和键销,连接器两端设有斜度凹槽,键槽和键销设置于连接器两端,键销安装于键槽内,整个起重器结构更紧凑,使得吸持力更强,磁路设计剩磁为零,提高安全系数,最大拉脱力是额定起重力的2.8‑4倍,故障率降低,安全可靠,广泛运用于其中搬运,平整机械零部件和交通运输行业等领域安装和搬运,使得起重器体积更小,自重更轻。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Improved jack


    Weitere Titelangaben:

    一种改进型起重器


    Beteiligte:
    JIANG YUEJIN (Autor:in)

    Erscheinungsdatum :

    2021-05-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



    IMPROVED JACK DEVICE AND SYSTEM

    RENQUIST JOHN HOWARD | Europäisches Patentamt | 2021

    Freier Zugriff

    IMPROVED JACK DEVICE AND SYSTEM

    RENQUIST JOHN HOWARD | Europäisches Patentamt | 2016

    Freier Zugriff

    Improved Jack for Load Tests

    Emerald Group Publishing | 1932


    IMPROVED JACK DEVICE AND SYSTEM

    RENQUIST JOHN HOWARD | Europäisches Patentamt | 2018

    Freier Zugriff

    JACK MECHANISM WITH IMPROVED SAFETY FEATURES

    BUSH ANDREW | Europäisches Patentamt | 2018

    Freier Zugriff