The invention discloses a monitoring and deviation rectifying system and method for a long-span portal crane, and relates to the technical field of engineering mechanical equipment. The system involves an encoder system, an original vehicle control system and a deviation rectifying control system; the encoder system involves a rigid leg photoelectric encoder and a flexible leg photoelectric encoder, wherein the rigid leg photoelectric encoder is used for calculating the moving distance of a rigid leg of the portal crane, and the flexible leg photoelectric encoder is used for calculating the moving distance of a flexible leg of the portal crane; the original vehicle control system is used for controlling the movement of the rigid leg and the flexible leg; and the deviation rectifying control system is used for driving the original vehicle control system to work so as to carry out movement deviation rectifying on the rigid leg or the flexible leg on the basis of the moving distance, calculated by the rigid leg photoelectric encoder, of the rigid leg and the moving distance, calculated by the flexible leg photoelectric encoder, of the flexible leg when the deviation value between themoving distances of the rigid leg and the flexible leg is greater than a preset threshold value. According to the system and method, the use safety of the portal crane and the operation safety of field workers can be effectively ensured.

    本发明公开了一种大跨度门式起重机的监控纠偏系统及方法,涉及工程机械设备技术领域,该系统包括编码器系统、原车控制系统和纠偏控制系统,编码器系统包括刚腿光电编码器和柔腿光电编码器,所述刚腿光电编码器用于计算门式起重机刚腿的移动距离,所述柔腿光电编码器用于计算门式起重机柔腿的移动距离;原车控制系统用于控制刚腿和柔腿的移动;纠偏控制系统用于基于刚腿光电编码器计算的刚腿的移动距离和柔腿光电编码器计算的柔腿的移动距离,当刚腿和柔腿移动距离的偏差值大于预设阈值时,驱动原车控制系统工作,对刚腿或柔腿进行移动纠偏。本发明能够有效确保门式起重机的使用安全和现场工作人员的作业安全。


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    Title :

    Monitoring and deviation rectifying system and method for large-span portal crane


    Additional title:

    一种大跨度门式起重机的监控纠偏系统及方法


    Contributors:
    LU QING (author) / LI XIANGYANG (author) / HU ZHIWEI (author) / TIAN ZHUANG (author) / ZHANG YINGSONG (author)

    Publication date :

    2020-10-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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