A suspension gap sensor installation device for medium and low speed maglev trains

Abstract

The invention discloses a suspension gap sensor installation device for medium and low-speed maglev trains, which includes a telescopic installation structure, the telescopic installation structure is formed by a plurality of hinged scissor arm units, and the plurality of hinged scissor arm units are hinged; each hinged scissor arm The center of the unit is equipped with a suspension gap detection sensor, and the two ends of the telescopic installation structure are respectively provided with a mounting shell and a fixed plate, and a signal processor is arranged in the mounting shell, and the mounting shell and the fixed plate are installed on the inner side of the electromagnet, and the suspension gap The detection sensor is electrically connected with the signal processor. When the suspension gap detection sensor of the present invention passes the rail gap, only one probe is affected by the rail gap, so that the suspension detection control system can easily judge the accurate gap value, and the influence of the rail gap on the stability of the suspension system is better suppressed , which plays an important role in the smooth control of the maglev train.

Description

technical field [0001] The invention relates to the technical field of maglev trains, in particular to an installation device for a suspension gap sensor of a medium-low speed maglev train. Background technique [0002] The suspension of the train on the track is an important feature of the maglev train that is different from traditional rail vehicles. The electromagnetic suction levitation system is an important part of the low- and medium-speed maglev train, and its stability is directly affected by the accuracy of the levitation gap measurement. The essence of electromagnetic suction levitation control is to achieve stable control of the levitation gap, and the gap measurement is particularly important. In the medium and low-speed maglev train system, the track is made of low-carbon steel and other magnetic materials, and is laid on the sleeper of the track beam along the line. A gap will be reserved between adjacent tracks to prevent the thermal expansion and contractio...

AI Technical Summary

Problems solved by technology

Although the sensor detection probe has good linearity and sensitivity, the interphase electromagnetic interference caused by too small detection probe spacing has a great impact on the accuracy of the sensor; second, there is rail gap interference when the train is running

When the sensor probe passes through the rail gap, the gap detection value will be distorted due to the leakage of the electromagnetic field of the probe

When the distance between the detection probes is small and the rail gap is large, the adjacent probes are affected by the rail gap at the same time, and the gap detection value is inaccurate, which makes it difficult for the suspension control system to judge the accurate gap value

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