The working principle and use characteristics of plc synchronous jacking system

PLC synchronous lifting system

PLC multi-point synchronous jacking hydraulic system is divided into five parts: hydraulic pump station, PLC computer control system, hydraulic system, displacement pressure detection and human-machine interface operating system. The system integrates the hydraulic jacking system, computer PLC signal processing, displacement monitoring and bridge structure analysis and construction technology, and completes the technical development on the integrated system. The core is based on the bridge structure analysis and construction technology summary, based on the characteristics of the bridge design computer PLC signal processing and hydraulic system, input the displacement signal of the external monitoring facility, output the hydraulic system oil control signal, using the terminal groups of jacks to achieve The purpose of balanced, safe and efficient bridge jacking is to ensure that the accuracy of jacking and landing accuracy does not exceed ±0.5 mm. The jacking load includes 50 tons to 1,000 tons and the roof height is 10 to 500 mm.

PLC synchronous jacking system features:

1. High-speed zero-setting, low-speed jacking, lifting speed can be arbitrarily controlled;

2. Hydraulic jacks with external (or built-in) displacement, pressure sensors, and uniform valve to ensure the high reliability of the jacking system in harsh working environments;

3. The overload protection function of the uniform load valve avoids the common expansion cylinder accident when multi-cylinder jacking;

4. Advanced oil inlet speed control and heavy duty Pioneer hydraulic circuit, the compensation order is to achieve high precision synchronization when lifting, and it can also ensure high-precision synchronization when the load drops.

5. The operation is simple and intuitive, and can achieve the adjustment of the work roll, pitch, etc. posture;

6. It can be connected to a color touch screen, real-time online display lifting displacement and jacking load, can also be connected to the IPC to record the entire construction process in real time;

7. Multi-point synchronization can be extended to 32 points or more. In the multi-point synchronization state, in addition to maintaining the synchronization of multiple points, the load distribution of each fulcrum can be adjusted according to the user's requirements.