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A railway signal dynamic drive device with protection function and its protection method

A dynamic and signaling technology, applied in railway signaling, railway signaling and safety, transportation and packaging, etc., to achieve the effect of clear thinking and high reliability

Inactive Publication Date: 2018-10-16
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current railway signal dynamic drive circuit cannot avoid this situation

Method used

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  • A railway signal dynamic drive device with protection function and its protection method
  • A railway signal dynamic drive device with protection function and its protection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: After the switch machine control circuit is powered on, the programmable controller 6 does not output a signal to the contactor 7, the first main contact 8 and the second main contact 9 of the contactor 7 are disconnected, and the third main contact 10 and The fourth main contact 11 is connected, the resistance value of the voltage coil 5 of the starting relay is input to the programmable controller 6, the programmable controller 6 detects and judges that the resistance value of the voltage coil 5 of the starting relay is 0.44Ω, and the programmable controller 6 outputs an alarm The signal is sent to the alarm lamp 4, reminding: the voltage coil of the start relay is assembled incorrectly, and the "start" button on the operation interface is locked, and the operation is prohibited.

Embodiment 2

[0018] Embodiment 2: After the switch machine control circuit is powered on, the programmable controller 6 does not output a signal to the contactor 7, the first main contact 8 and the second main contact 9 of the contactor 7 are disconnected, and the third main contact 10 and The fourth main contact 11 is connected, and the resistance value of the starting relay voltage coil 5 is input to the programmable controller 6. The programmable controller 6 detects and judges that the resistance value of the starting relay voltage coil 5 is 125Ω, and the programmable controller 6 does not output The alarm signal is sent to the alarm lamp 4, and the "Start" button on the operation interface allows operation;

[0019] The operator clicks the "Start" button. On the one hand, the programmable controller 6 outputs a signal to the contactor 7, and the first main contact 8 and the second main contact 9 of the contactor 7 are connected, that is, AC 50V is sent to the photocoupler 3 and The tw...

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PUM

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Abstract

The invention discloses a railway signal dynamic driving device with a protective function, and a protecting method of the railway signal dynamic driving device. The railway signal dynamic driving device and the protecting method thereof are applied to control of a factory railway switch machine. The railway signal dynamic driving device comprises a starting relay voltage coil, a programmable controller, a contactor, a dynamic charging and discharging circuit, a photoelectric coupler and an indicator lamp, wherein the input end of the programmable controller is connected with a third main contact and a fourth main contact of the contactor separately; the output end of the programmable controller is connected with the input end of the contactor, the indicator lamp and the dynamic charging and discharging circuit separately; the dynamic charging and discharging circuit is connected with 24V direct current power and the photoelectric coupler; the photoelectric coupler is connected with a first main contact of the contactor and the starting relay voltage coil separately; besides, the starting relay voltage coil is connected with a second main contact of the contactor. According to railway signal dynamic driving device disclosed by the invention, the resistance value of the starting relay voltage coil placed in an alternating current 50V circuit is detected to judge whether wires are wrongly assembled for the voltage coil and the current coil of the starting relay voltage coil, so that the phenomenon that a dynamic driving circuit is burnt up is avoided.

Description

technical field [0001] The invention relates to a railway signal control device, which is mainly used for the control of railway switch machines in factories. Background technique [0002] In the switch machine control circuit of the railway signal control system of the factory, the model of the starting relay is JWJXCH125 / 0.44, the resistance of the voltage coil is 125 ohms, and the resistance of the current coil is 0.44 ohms. The relay is driven by the AC 50V voltage through the dynamic drive circuit in the switch machine control circuit (the dynamic drive circuit is composed of a dynamic charging and discharging circuit and a photocoupler), that is, the 50V voltage becomes 25V after being rectified by the dynamic drive circuit The voltage is added to both ends of the voltage coil to start the relay, and the starting current is 25 / 125=0.2A. [0003] Once the voltage coil and current coil of the starting relay are assembled incorrectly or connected wrongly, that is, the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L5/06
CPCB61L5/062B61L5/065
Inventor 杜娟智红英刘丽琴曹启超孙圣博宁晓琦
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY