The invention provides a pulley device with a braking function and a function of preventing a rope from taking off from a groove, and belongs to the technical field of mechanical transmission. The pulley device with the braking function and the function of preventing the rope from taking off from the groove can effectively prevent the rope from taking off from the pulley groove, can perform braking on a pulley and the rope on the condition that the rope fractures or loses traction force, and stops a heavy object from falling freely. The pulley device with the braking function and the functionof preventing the rope from taking off from the groove is concise and reliable in structure and is easy to realize. According to the technical scheme of the pulley device, a cam is arranged in a pulley frame; a push rod is arranged between the cam and the base; when the traction force of the rope is stable, the pulley frame and the direction of gravity maintain a stable included angle, and the rimof the cam maintains a certain clearance with the rope and the pulley; when the rope fractures or loses traction force, the pulley swings towards the direction of gravity under the action of gravity,the push rod is used for pushing the cam to rotate, and the rim of the cam is in contact with the rope and cooperates with the pulley so as to brake the pulley and the rope.

    本发明为一种具有制动功能和防绳索脱槽功能的滑轮装置,属于机械传动技术领域,可有效防止绳索从滑轮槽脱出,并可在绳索断裂或失去牵引力的情况下对滑轮和绳索进行制动,阻止重物自由下落,本发明结构简洁、可靠,易于实现。其技术方案为:在滑轮框架内安装凸轮,凸轮与底座之间安装推杆,在绳索牵引力稳定时,滑轮框架与重力方向保持一个稳定的夹角,凸轮轮缘与绳索及滑轮保持一定的间隙,在绳索断裂或失去牵引力的情况下,滑轮受重力作用向重力方向摆动,推杆推动凸轮转动,凸轮轮缘与绳索接触并与滑轮共同配合使滑轮和绳索制动。


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    Titel :

    Pulley device with braking function and function of preventing rope from taking off from groove


    Weitere Titelangaben:

    一种具有制动功能和防绳索脱槽功能的滑轮装置


    Beteiligte:
    CHEN HUI (Autor:in)

    Erscheinungsdatum :

    2020-05-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66D Haspeln , CAPSTANS




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