System and method for monitoring switching synchronism of joint three-way/five-way turnout

A monitoring system and synchronization technology, which is applied in the direction of railway signals and safety, can solve problems such as equipment damage, synchronous discrepancies, multi-section turnout beams twisted and fallen, and protection that cannot be monitored and responded in time, so as to ensure safety and timely The effect of accurate alarm

Active Publication Date: 2012-09-26
CHINA RAILWAY BAOJI BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method cannot realize timely monitoring and response to the protection of three switch motors starting at the same time and when a fault occurs. can start) will cause the relative twisting of the multi-section turnout beam during the movement and fall down or even damage the equipment

Method used

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  • System and method for monitoring switching synchronism of joint three-way/five-way turnout
  • System and method for monitoring switching synchronism of joint three-way/five-way turnout
  • System and method for monitoring switching synchronism of joint three-way/five-way turnout

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Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: with reference to accompanying drawing 1-4. A joint-type three-open / five-open turnout switching synchronization monitoring system, which includes a turnout drive device, an absolute encoder is installed on the transmission shaft between the two-stage reduction of each turnout drive device, and the absolute value is transmitted through the bus. The encoder is introduced into the existing switch state monitoring system, that is, in the PLC numerical processing, and the synchronization monitoring function of the switch switching process is realized through real-time monitoring and comparison of the encoder readings. Installing the absolute encoder on the transmission shaft refers to installing the absolute encoder on the transmission shaft of the turnout driving device. The reduction ratio of each switch drive is the same.

[0018] Picture 1-1 and Figure 1-2 Middle: 1. Three-in-one motor reducer 2. Turbine worm reducer 3. Crank B 4. Transmission shaft 5....

Embodiment 2

[0022] Embodiment 2: with reference to attached Figure 5 . On the basis of Embodiment 1, the monitoring method of the switching synchronization monitoring system of the articulated three-open / five-open turnout, the monitoring of the readings processed by the PLC includes: 1) Whether the motors are normal after the start command is given to the three motors at the same time Start; 2) During the running process, the movement values ​​of the driving points are compared with each other, and when the set difference is exceeded, an alarm is issued to complete the detection of the asynchronous movement of the turnout beam under various circumstances.

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Abstract

The invention relates to a system and a method for monitoring the switching synchronism of a joint three-way/five-way turnout. The system comprises turnout driving devices, wherein an absolute encoder is arranged on a transmission shaft between two-stage speed reducers of each turnout driving device, and is introduced into the conventional turnout state monitoring system through a bus, so that the function of monitoring the synchronism in the turnout switching process is realized by monitoring and comparing readings of the encoders in real time during programmable logic controller (PLC) numerical processing. The system and the method have the advantages that 1, each turnout driving device is continuously monitored in real time, wherein whether each turnout driving device can be normally started or not and whether a transmission chain fails or not are judged; 2, three driving devices can be continuously monitored in real time under the conditions that slip is overhigh, motors and control circuits thereof fail and the like due to driving asynchronism in the turnout switching process; and 3, an alarm is timely and accurately given, the safety of equipment is ensured, and help information is provided for failure processing.

Description

technical field [0001] The invention relates to a safety protection for the turnout equipment during the turnout process through the real-time monitoring of the turnout driving device, so as to avoid damage to the equipment due to excessive driving slip, failure of the motor and its control circuit, etc. The invention discloses a switch synchronization monitoring system and a monitoring method for an articulated three-open / five-open turnout with fault expansion, and belongs to the field of turnout real-time monitoring system manufacturing. Background technique [0002] Articulated three-way / five-way turnout is an important part of the straddle-type monorail transit system. Compared with the traditional wheel-track turnout, the joint-type three-way / five-way turnout is a turnout with a special structure (see Image 6 ), a total of five sections of turnout beams are driven by three driving devices at the same time, so that the overall switch of the turnout beam is aligned with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L23/04
Inventor 张耀红毛豫生
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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