| Electric hydraulic detection and control system for hydraulic support system is the main component of coal mining automation.Whether the hydraulic support is suitable or not directly affects the safety of the shearer,which makes the real-time state detection of the hydraulic support very important.Through the real-time detection of the running state of the equipment to determine whether the hydraulic support is working under normal conditions,if abnormal conditions occur,it is necessary to deal with the fault in time,so as to ensure the operation of the hydraulic support safety,and then protect the safety of the shearer.After studying the data of Beijing Marco hydraulic support used in No.1 well of Huangling Mining Group,the testing system was designed and reformed.The core components of the control system are Siemens PLC and WICC configuration software.The software and hardware of Siemens PLC and the upper computer of WICC are designed respectively.Intelligent detection system is divided into master station and sub station mode.The main station uses Siemens S7-300 PLC as the control core,through the CP5611 interface card and the host computer WICC configuration software to communicate,through a variety of sensor work simulation curve to determine whether the running state of the support is beyond the limit,if it occurs,alarm or take appropriate measures,thus playing a monitoring role.The station adopts S7-200 PLC controller,designs PLC program,touch screen program and touch screen parameters,and'tests a single hydraulic support.At the same time,the hardware circuit S7-200 of the detection system is designed,and the PLC I/O is allocated.According to the specific use,the sensor and power supply are selected.This design can display the operation parameters of hydraulic support to the upper computer,and carry out real-time monitoring,and then play a very important role in the safe operation of hydraulic support,which has a certain practical significance. |
PDF Full Text Request