The invention discloses a self-resetting external embracing type manned winch with an emergency lowering function. The self-resetting external embracing type manned winch comprises a rack, a winding drum is arranged on the rack, a speed reducer is arranged at one end of the winding drum, a supporting shaft is arranged at the other end of the winding drum, a normally-closed self-resetting external embracing oil cylinder braking assembly is arranged between the winding drum and the supporting shaft, the speed reducer is connected with a variable displacement motor, and the variable displacement motor is connected with a hydraulic valve block; a brake is arranged in the speed reducer; the hydraulic valve block comprises a first one-way valve, a second one-way valve, a throttling valve, a hydraulic control reversing valve, a first balance valve, a second balance valve, a first shuttle valve, a second shuttle valve, a pressure reducing valve, a sequence valve and an electromagnetic reversing valve. According to the self-resetting external embracing type manned winch with the emergency lowering function, the normally-closed self-resetting external embracing oil cylinder brake is arranged, when a main oil way is closed, the external embracing brake can embrace a brake hoop through pre-tightening force preset by the oil cylinder, and finally the emergency mechanical braking effect is achieved; the device is compact in design, reliable in braking performance and capable of being widely applied to throwing boats and other equipment.

    本发明公开了一种自复位外抱式带应急下放功能的载人绞车,包括:机架,机架上设有卷筒,卷筒一端设有减速机,另一端设有支承轴,卷筒与支承轴之间设有常闭式自复位外抱油缸制动组件,减速机连接有变量马达,变量马达连接有液压阀块;减速机内部设有制动器;液压阀块包括:第一单向阀、第二单向阀、节流阀、液控换向阀、第一平衡阀、第二平衡阀、第一梭阀、第二梭阀、减压阀、顺序阀和电磁换向阀。本发明的自复位外抱式带应急下放功能的载人绞车,带常闭式自复位外抱油缸刹车,当关闭主油路时,外抱刹车可以通过油缸预先设定的预紧力来抱紧刹车箍,最终起到紧急机械制动的作用;设计紧凑,制动性能可靠,能够广泛应用于抛落艇等设备。


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    Title :

    Self-resetting external embracing type manned winch with emergency lowering function


    Additional title:

    一种自复位外抱式带应急下放功能的载人绞车


    Contributors:
    CHEN KAIKAI (author) / JIN TIANHE (author) / SONG HONGGUANG (author)

    Publication date :

    2024-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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