Dynamic Matching And CAD Design Of Hydraulic Driven Engineering Vehicles

With the improvement of science and technology, many high-tech elements are applied to the construction of socialism, which helps raise the working efficiency and reduce the resource consumption, thereby speeding up our country’s economic construction, and increasing the people’s standard of living.Among the elements engineering vehicles are used in great extent in the market,the performance of the hydraulic drive system of construction vehicle is often neglected by people. The construction vehicle hydraulic traction dynamics becomes the main technology of hydraulic drive engineering vehicles, To produce high power and low fuel consumption by means of efficient matching engine, transmission system, travel agency, and working device is the main purpose of the research. So the match and analysis of the hydraulic engineering vehicle travelling system dynamic matching and analysis is the research priorities of this study.Specific research contents include the following points1)Briefly introducing construction vehicle hydraulic technology is simple,and puting forward the thesis research background and significance2) Pointing out that the construction vehicle and the advantages and disadvantages of the commonly used hydraulic transmission and hydraulic transmission, and the vehicle under different driving mode of dynamic parameters is analyzed and compared.3)Analyzing the matching of the engine and hydraulic system are analyzed and the control principle, and the pump impeller rotational speed hydraulic system with the two main factors in regulating system pressure, the maximum average output power, to ensure that the vehicle can maximum service life of automation, intelligent work.4)Of vehicle transmission efficiency of hydraulic components and slip rate of the vehicle is analyzed, for the vehicle power transmission efficiency.5)By increasing the speed reducer to remedy the deficiency of the dynamic performance affected by the lack of torque of the hydraulic drive engineeringvehicles, and points out the influence of the ratio on the vehicle dynamic performance and fuel economy.6) Developing the software combined of Visual C ++ 6.0 and MYSQL to compute and match the dynamic parameters of hydraulic drive of engineering vehicle for visualization and easy operation for designersThe content of the paper, through the above research, first of all, it is concluded that vehicle on the road working condition the rated pressure of the hydraulic components and speed values; Secondly through the establishment of equilibrium equation and statistics of vehicle under static traction and fuel consumption, estimate the work in a dynamic state of traction and oil consumption, digital and vehicle performance, to improve the precision of the design personnel matching calculation; Finally the corresponding matching check software development, to improve the disadvantages of the past can only separate calculation software, improve the working efficiency.