Optimization Analysis Of Transmission System Parameters Of Winding Hydraulic Seam Cutting Machine

After the winding hydraulic slitting machine completing the slitting of the coal seam in the mine,the coal seam gas is pumped.Then the transmission system is driven by the hydraulic motor,Finally,the seamless steel pipe would be recovered and wound through the rotation of the roller.In actual work,the seamless steel pipe can be pushed into the coal seam nearly 100 meters,therefore the transmission system will be subjected to a large load when recycling the seamless steel pipe,And in severe cases,the gear teeth of the transmission system will be broken,resulting in the seamless steel pipe being unable to be recycled.Therefore,the research on the transmission system of the winding hydraulic seam cutting machine is of great significance for the protection of coalbed methane mining.In this paper,the transmission system of the winding hydraulic seam cutting machine developed and improved by Taiyuan University of Technology is regarded as the research object.The dynamic characteristics of the transmission system under the action of load moment are analyzed.The optimized parameters of the transmission system are obtained as well,which provides the improvement of the transmission system.The specific research contents in this paper are as follows:(1)According to the structural principle of the transmission system,the parameterized model of the transmission system is established by Solidworks,and imported into ADAMS to establish its virtual prototype model.Under the same application speed,the angular velocity,meshing force and frequency of the transmission system under the action of stable load and special load are analyzed separately.Finally,the influence of special load on the dynamic characteristics of the transmission system is analyzed by time domain and frequency domain curve.(2)The flexible model of the transmission system gearbox is obtained by the CB modal calculation in ANASY.The rigid-flexible coupling model of the transmission system is established in ADAMS.The dynamic characteristics of the transmission system under rigid-flexible coupling are obtained through simulation analysis,before analysis and comparison with rigid body transmission results.In the last step,the maximum stress-strain nodes on the flexible body and their timedomain curves are obtained.(3)Basing on the implicit dynamics analysis theory,the first stage gear of transmission system is analyzed of transient dynamics in Workbench.The stress distribution of the gears under different loads,different driving speeds,different modulus and helical gear model is obtained respectively.Accordingly,the ideal parameters of the gear transmission are obtained by analyzing the maximum stress.(4)The parametric model of the roller was established by Pro/E,and then,the modal analysis was carried out to obtain the first six natural frequencies of the roller.Taking the first natural frequency of the roller and its own mass as the optimization target,the size of the roller is optimized for the design variables.In the end,the influencing factors of roller optimization are obtained by responsing surface and sensitivity,the optimal solution of the parameters of the roller design variables is solved as well.