| High yield and high efficiency mining of thick coal seam and specially thick coal seam resources is directly related to the economic development of our country's coal. In the fully mechanized working face, coal winning machine's working environment is complicated. Especially when cutting complex occurrence condition of seam face, the influence of the strong impact load will lead to the damage to the transmission system of some key parts.The influence of coal winning machine will reduce the working reliability and stability. So the transmission system of coal winning machine cutting part reliability study is very necessary.This paper is based on "easy maintenance SL1000 shearer rocker arm computer simulation analysis". With finite element technology, virtual prototype technology and fatigue cumulative damage theory as the theoretical basis, Pro/E, ADAMS and MATLAB is used to establish the virtual prototype model of body coal winning machine cutting part. Based on the virtual prototype simulation data, ANSYS/ls-dyna is used to do three-stage gear of minimum safety coefficient contact strength and fatigue check of shearer cutting unit transmission system, obtained the stress nephogram stress curve and life, the results meet the strength requirement. At the same time, based on nSoft, loading maximum output shaft is analyzed, obtained the stress nephogram, life analysis results and life contours, the analysis meet the strength requirement. Based on ADAMS and MATLAB/SIMULINK has carried on the electrical and mechanical joint simulation of cutting part. They studied in simulated condition of dynamic load conditions the workings of the cutting machine, basic good results show that the motor is running.This paper provides a reference for the transmission design and research work for large mining equipment complex environment. this research method could shorten the design period of products, greatly reduces the production cost and improve the market competitiveness. |
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