Reliability Analysis Of Dual Motor Thin Seam Shearer Cutting Part

Coal winning machine is the key to the realization of thin coal seam mining equipment, especially the work in complex occurrence working face coal winning machine, reliability will directly affect the cutting part coal winning machine can work normally.Based on the project "MG2~*100/455-BWD model of shearer cutting unit reliability research" as engineering objects. Based on the rigid flexible coupling dynamics of multibody system theory, established the shearer cutting unit of rigid flexible coupling model, studied the dynamical behavior of the inner gear ring, a sun wheel peer star in meshing process; According to the occurrence condition of coal seam shearer in complex work roller force, based on Matlab programming to simulate the load file roller. Simulation analysis is carried out by multi-body dynamics software RecurDyn, obtained the mining machine inner gear ring and the sun gear should contact stress distribution and the planetary wheel and the contact moment, comparison and its correctness is verified with the theoretical value; Through the calculation of fatigue life, got the ring gear and the sun gear tooth surface of the minimum fatigue cycles. The weak region of the inner gear ring and the sun gear fatigue life improvement methods are raised, prolong its service life. Using the RecurDyn/Colink module on the cutting part of the driving motor and Study on its reliability, load balance allocation scheme of double motor drive when obtained, provides a new way to input driven research for cutting part transmission system. In the design of the reliability, reduce the cost of production, it provides a new method for stress and fatigue life should be in the rigid motion and the small deformation of flexible components of movement of the shearer equipment research.