Study On The Relief Valve Test System Based On Accumulator As Power Source And Multi-functional Cylinder

Based on the characteristics of high flow output of accumulator and the small resistance loss of combination cylinder, a kind of test method and test system device for hydraulic support high flow relief valve were put forward, which also combined common relief valve structure and parameters requirements. In the process of designing and debugging STA-500 relief valve test bench, the key technology namely reducing resistance loss, controlling the accumulator flow and configuration method of system parameters were put forward and solved through analysing technical problems. Comparing the STA-500 results systems with other test results, the performance of the test system based on the accumulator was researched, which included outputting flow capacity, testing precision, testing results repeatability etc. Meanwhile, structure technology of valve test system based on the accumulator for power supply and a combination cylinder was put forward with establishing the system flow function equation and the vibration model of system and analyzing the steady-state flow characteristics and dynamic vibration characteristics and influence factors.