The invention discloses a hoisting machine safety device which comprises a suspension arm amplitude-changing oil cylinder loop. A balance valve capable of sealing work oil of a lower cavity of an oilcylinder is arranged in the suspension arm amplitude-changing oil cylinder loop. A hoisting weight indicator is arranged in an operation room of a hosting machine and is in circuit connection with a hoisting sensing device. The hoisting machine safety device is reasonable in structure, convenient to use, good in work effect and capable of effectively avoiding happening of accidents and preventingfurther development of accidents.

    本发明公开了一种起重机械安全装置,包括吊臂变幅油缸回路,在吊臂变幅油缸回路中设置可封闭油缸下腔工作油的平衡阀;在起重机械操纵室内设置起重量指示器,起重量指示器与起重传感装置通过电路连接。本发明结构合理,使用方便,工作效果好,可有效避免事故的发生和阻止事故的进一步发展。


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    Title :

    Hoisting machine safety device


    Additional title:

    起重机械安全装置


    Contributors:

    Publication date :

    2020-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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