The self-locking pulley device comprises a pile machine base, a first fixed pulley and a movable pulley, a first special-shaped pulley shaft and a second special-shaped pulley shaft are installed on the outer wall of a first pulley support and the outer wall of a second pulley support correspondingly, and the first fixed pulley and the second fixed pulley are installed on the outer wall of the first pulley shaft and the outer wall of the second pulley shaft correspondingly; a third pulley shaft is installed on the outer wall of the movable pulley, and a third pulley support is installed on the outer wall of the third pulley shaft. Power can be provided for operators and lifting and lowering of heavy objects in the maintenance, assembly and disassembly process of the pile machine, the pulley device can be self-locked, the load moment during object lifting can be reduced, a low-power motor is selected, cost is saved, and meanwhile, under the condition that the motor breaks down or is suddenly powered off, the lifting torque can be reduced. The self-locking pulley block can prevent people and objects from freely falling, and dangerous sources are eliminated. The pulley block and the simple falling protector are combined to form the self-locking pulley device, and the self-locking pulley device is simple in structure and easy to manufacture.

    本发明公开了一种可自锁滑轮装置,包括桩机底座、一号定滑轮和动滑轮,所述一号滑轮支架和所述二号滑轮支架的外壁均安装有异形一号滑轮轴和二号滑轮轴,所述一号滑轮轴和二号滑轮轴的外壁安装有一号定滑轮和二号定滑轮,所述动滑轮的外壁安装有三号滑轮轴,三号滑轮轴的外壁安装有三号滑轮支架。本发明可在桩机的维修与安拆过程中为作业人员和重物提升与下放提供动力,可自锁滑轮装置,可减小物体提升时的起重力矩,选用小功率电动机,节约成本,同时在电动机出现故障或者突发断电的情况下,可自锁滑轮组可防止人员与物体的自由落体运动,消除危险源。滑轮组与简易防坠器结合组成一种可自锁滑轮装置,结构简单,易于制造。


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    Title :

    Self-locking pulley device


    Additional title:

    可自锁滑轮装置


    Contributors:
    SHI HONGYUAN (author) / WANG ZHAOJUN (author) / WU YUNPENG (author) / CHEN ZIYI (author) / YIN YUNHUI (author)

    Publication date :

    2023-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / B66C Krane , CRANES



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