Research On Design And Simulation Of Performance Test System For The Hydraulic Support Valve Components

The hydraulic support is the core equipment in the fully mechanized coal mining face support system,which is used to support the roof of coal roadway to prevent the coal gangue from falling and maximum protection of personnel and equipment safety.Valves are the main control components in the hydraulic support,include relef valve,reversing valve,pilot-operated check valve,shut-off valve.The performance of the valve components directly affects the working condition of the hydraulic support.The study on valve components performance test methods and system has important practical significance for coal mine production.In this paper,according to the national standard GB25794.3-2010《coal mine hydraulic support part 3:hydraulic control system and valve》requirements for the hydraulic support valve components performance testing,Study identified the valve components performance test system needs to complete the test project and the main detection parameters.According to the modular design the valve component performance test hydraulic circuit,then complete hydraulic test bench key components parameter calculation and component selection.The hydraulic circuit is established in AMESim modeling and simulation system,take BD20K7-10B315Y type pilot relief valve,FHS400/31.5 type electro-hydraulic directional valve,FDT-400/40 type pilot-operated check valve,FJZ400/31.5 type shut-off valve as researc object,obtain valves characteristic test performance parameter change curve in simulation model,and research the influence of leakage on the electro hydraulic directional valve about clearance between valve core and valve body,System pressure,temperature.Through analysis,the hydraulic circuit meet valve components performance test requirements.Based on the virtual instrument technology establish the test system hardware platform,completed the sensor,the collection card selection and condition circuit design.Developed the stent valve component performance test software in LABVIEW2011,which set data acquisition,data processing,graphics display,data query,report generated as a whole,and complete performance test about different types of valve components in hydraulic support.Through experiment analyzed for test system static characteristics,the results show that the static characteristics of each channels are in good condition.Finally,based on laboratory equipment.FCYCS-F comprehensive experiment platform,established the hardware test platform for function verification,experiments show that the functions of the test system could satisfy the requirement of national standard examination.