The invention provides a crane rope breakage protection device, and relates to the technical field of cranes. A fixed friction block and a brake block are arranged on the two sides of the steel wire rope, a push rod and a first spring are arranged on the side, away from the steel wire rope, of the brake block, a rotating piece is arranged at the bottom of the push rod, and one end of the rotating piece protrudes and is clamped with the bottom of the push rod in a matched mode; when the wedge-shaped sliding block moves, the ejector rod can be driven to eject the rotating piece to enable the rotating piece to be separated from the push rod, the push rod pushes the brake block under the action of the first spring to enable the brake block to be matched with the fixed friction block to clamp the steel wire rope, and the centrifugal block is arranged at the top of the pulley and can impact the wedge-shaped sliding block when the rope is broken. And the moving part moves towards the middle of the shell. The device can respond quickly under the condition that the load of the lifting hook is large, and safety accidents caused by quick falling of a lifted object under the condition of rope breakage are avoided.

    本发明提供了一种起重机断绳保护装置,涉及起重机技术领域。包括:壳体、吊钩、滑轮,钢丝绳缠绕在滑轮外侧,钢丝绳两侧设固定摩擦块和制动块,制动块远离钢丝绳一侧设置推杆和第一弹簧,推杆底部有转动件,转动件一端突出并与推杆底部配合卡住,推杆静止时,第一弹簧处于压缩状态,转动件另一端下方设有顶杆,顶杆底部设置楔形滑块,当楔形滑块移动,能带动顶杆顶动转动件,使其与推杆脱离,推杆在第一弹簧作用下推动制动块,使其与固定摩擦块配合夹紧钢丝绳,滑轮顶部有离心块,能够在断绳时撞击楔形滑块,使其向壳体中部移动。该装置能够在吊钩载荷较大的情况下快速响应,避免在断绳情况下吊物快速下坠而造成安全事故。


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    Title :

    Crane rope breakage protection device


    Additional title:

    一种起重机断绳保护装置


    Contributors:
    SHEN JIE (author) / QIN HAO (author)

    Publication date :

    2024-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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