The invention relates to the technical field of steel rail flaw detection, and provides an automatic inspection system for rail flaw detection, which comprises an electromagnetic transmitting circuit, an electromagnetic receiving circuit and a main control unit, the electromagnetic transmitting circuit comprises a transformer T1, a switching tube Q1, a switching tube Q2, a resistor R2, a diode D4 and an electromagnetic transmitting coil L1, and the first input end of the transformer T1 is connected with a VCC power supply; the second input end of the transformer T1 is connected with the first end of the switching tube Q1, the second end of the switching tube Q1 is grounded, the first end of the resistor R2 is connected with a VCC power supply, the second end of the resistor R2 is connected with the control end of the switching tube Q1, the first output end of the transformer T1 is connected with the anode of the diode D4, the second output end of the transformer T1 is grounded, and the cathode of the diode D4 is connected with the first end of the electromagnetic transmitting coil L1. And the second end of the electromagnetic transmitting coil L1 is grounded. The problem that excitation pulses are unstable during electromagnetic flaw detection in the prior art is solved.

    本发明涉及钢轨探伤技术领域,提出了轨道探伤自动巡检系统,包括电磁发射电路、电磁接收电路和主控单元,电磁发射电路包括变压器T1、开关管Q1、开关管Q2、电阻R2、二极管D4和电磁发射线圈L1,变压器T1的第一输入端连接VCC电源,变压器T1的第二输入端连接开关管Q1的第一端,开关管Q1的第二端接地,电阻R2的第一端连接VCC电源,电阻R2的第二端连接开关管Q1的控制端,变压器T1的第一输出端连接二极管D4的阳极,变压器T1的第二输出端接地,二极管D4的阴极连接电磁发射线圈L1的第一端,电磁发射线圈L1的第二端接地。解决了相关技术中电磁探伤时,激励脉冲不稳定的问题。


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    Title :

    Automatic inspection system for track flaw detection


    Additional title:

    轨道探伤自动巡检系统


    Contributors:
    WANG HAO (author) / LIU RUIZHI (author) / SONG TIEXIN (author)

    Publication date :

    2024-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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