Research On Rapid Transplanting And Attitude Control Of Large Mining Height Hydraulic Support

China is a country with more coal and less oil,proven coal reserves accounted for 33.8% of world coal reserves,recoverable volume ranked second.Coal is on an important position in China's one-time energy structure.In order to improve the production efficiency of coal enterprises,hydraulic support as an important support equipment for mechanized fully mechanized coal mining face,it is very important to improve the running performance and support performance(that is,the hydraulic control system performance and attitude control accuracy).In this paper,Using Pingyang Heavy Industry large mining high electro-hydraulic control strong hydraulic support as the research object,the specific research work mainly includes the following aspects:1?Firstly,the development of hydraulic support in China is introduced,and the research status of hydraulic support at home and abroad is analyzed,and the existing problems of hydraulic support are summarized.2?In view of the problem that the speed of the hydraulic support in the fully mechanized coal mining face is generally lower than the running speed of the shearer at present and reduces efficiency of fully mechanized coal mining.The mathematical model of the system is deduced by the method of power bonding.On this basis,the AMESim simulation model of the hydraulic control system is completed to study the dynamic characteristics of the hydraulic support.By optimizing the matching of the flow rate of the pumping station,the displacement of the telescopic cylinder,the overcurrent area of the telescopic cylinder and the pipe interface,the flow area of the hydraulic check valve and the supply diameter of the hydraulic check valve,Rising column speed improve to 0.57m/s and droping column speed improve to 0.56m/s.Compared with the original parameters,Rising column speed and droping column speed were increased by 17% and 16%.Parameter optimization greatly improves the speed of the hydraulic support.3?Based on the theoretical analysis of the hydraulic support structure,the mathematical model of the hydraulic support structure is set up.Using the mathematical function express the coordinates of the relevant hinge point,the mathematical expression of the inclination angle of column,jack,rear joystick,cover beam and other important parameters.4?Based on the mathematical model of hydraulic support,Visual C ++ 6.0 software development tool is used to write the program code to complete the visual interface design of hydraulic support.Through the interface in the graphics display area and the parameter output area,it can determine the corresponding roof beam angle and the front rocker horizontal angle and posture position of the hydraulic support.It can Quickly calculate the balance of the movement of the jack.The program can facilitate the attitude of the hydraulic support adjustment.The program can facilitate the adjustment of the attitude of the hydraulic support,and provide valuable reference information to determine the main parameters and relect components in the stent design processIn this paper,the computer is used to simulate and assist the hydraulic support.On the one hand,the performance of the system is optimized to improve the speed of the bracket.On the other hand,through the design of the auxiliary calculation software,the relevant parameters are obtained quickly,It provides favorable information for the selection of the relevant components of the hydraulic support and the parameter setting required for the relative position adjustment and achieve the optimization of hydraulic control system performance.It abandon the process of the prototype,test,modify,and then test in the original design,greatly shortening the design cycle,reducing the design cost,and to a certain extent provide valuable information for the stent stable operation and safety Support.