The tower crane stepless speed regulation control system comprises a programmable controller, the programmable controller is connected with a linkage table, a frequency converter and a position sensor, the frequency converter is connected with a motor, the motor is provided with a speed measurement encoder, and the speed measurement encoder is connected with the frequency converter. According to the stepless speed regulation control system and method for the tower crane, stepless smooth speed regulation of the tower crane is achieved through communication among the CAN type linkage table, the PLC and the frequency converter, any frequency between 0 and the maximum allowable output frequency is output through the operating rod, and more accurate control is achieved; and meanwhile, when the tower crane runs under a special working condition, the output frequency of the linkage table is reduced in an equal proportion manner through the PLC, so that stepless speed regulation is realized under the condition that the speed of the tower crane is limited, and omnibearing stepless speed regulation is realized.

    一种塔机无级调速控制系统及使用方法,包括可编程控制器,可编程控制器连接有联动台、变频器和位置传感器,变频器连接有电机,电机设有测速编码器,测速编码器与变频器连接在一起。本发明的塔机无级调速控制系统及方法,通过CAN型联动台、PLC控制器和变频器之间的通讯,实现了塔式起重机的无级平滑调速,通过操作杆输出0‑最大允许输出频率之间的任何频率,实现更精准的控制;同时,当塔机在特殊工况运行时,通过PLC控制器,使联动台的输出频率等比例减小,从而在塔机限速的情况下实现无级调速,实现全方位的无级调速。


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    Title :

    Stepless speed regulation control system and method for tower crane


    Additional title:

    一种塔机无级调速控制系统及方法


    Contributors:
    AN JIAN (author) / NI WENJIE (author) / SUN JIAXIN (author)

    Publication date :

    2025-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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