Research Of Control Technology Of20MN Hydraulic Support Internal Loading Test-bed

Hydraulic support test-bed is the important test equipment of mine hydraulic support at factory or after maintenance. It is used in new frame type development of hydraulic support or the ex-factory inspection and sealing performance test include functional and loading intensity overhaul about whole frame. Working reliability of mining hydraulic support will directly affect speed of the mining coal, impact bracket on the roof supporting performance and on the roof the quality of management. Its performance relates to the quality of hydraulic support and the safety of coal production. On the development of a new hydraulic support, performance must be tested in accordance with the original Ministry of coal industry MT312-2000standards, such as the sealing performance, strength and durability.Based on intensive study of control technology of20MN hydraulic support internal loading test-bed, we have an in-depth analysis of the four cylinder synchronization control, proposed four cylinder synchronous lifting fuzzy control algorithm and researched automatic control system of hydraulic support the loading test. Based on the Windows platform VB6.0, it is PC control system software that was developed. Automatic acquisition and preservation data collection not only reduces the labor intensity of workers but also greatly improves the detection efficiency of hydraulic support and shorten to the test cycle of the hydraulic support. On the background of Access data access, the system uses the ODBC database access technology, enhance the data management function. The experimental data can facilitate accurate storage and query and print statements. In user interface design, in line with complete functions, simple operation, easy expansion, easy to maintain principle, friendly man-machine interface has been designed. Through the study of this paper, it is greatly improves the control system integration, enhance the stability of hydraulic support testing system, simplifies the whole hydraulic system structure. Staffs can conveniently operate the field device monitoring. In the full of accuracy and reliability, Automatic control system of hydraulic support internal loading can reduce the cost of the system development, bring good economic value. It is provides a good test condition for hydraulic support detection.