Optimization Design Of Explosion-proof High-energy Density Water-cooled Motor

With the rapidly development of coal industry, depends on the mining efficiency increased significantly, the cutting motor of shearer but also plays a decisive role. The cutting motor used in the shearer is installed in a limited space. Constrained by downhole conditions, cutting motor has a compact structure, large output power, and is a high-power density motor, also known as high-energy density motor. The cutting motor of shearer is explosion-proof high-energy density water-cooled motor. Due to their high-energy density, small volume, working conditions and space constraints, the motor easy to heat, uninterrupted operation for a long time, once appear problem, serious consequences. How to guarantee the stability of cutting motor safely and effectively work is particularly important.For the core problems of the induction motor cooling, expounds the mechanism motor heating and cooling measures, from the electromagnetic design and structure optimization, through computer simulation calculation and through practical verification of the mechanical structure and optimization design of insulation structure, to reduce the motor heating, improve the heat dissipation structure, improve the motor performanceThere are no massive of formula in the paper, and no theoretical derivation, with necessary formula and basic theoretical support, more practical measures and methods, through the calculation and experiment data and the previous practical design experience to the optimization scheme and verify the feasibility of the optimization scheme, have more reference value for solving practical problemFor improving the motor performance, reducing the production cost at the same time, the world’s largest coal company cooperate with our company, for mining machine localization transformation, while retain foreign original type strengths, to improve the defects of original foreign supporting type and the insufficiency, make the machine more economically practical. The company established for this machine localization project. I am lucky enough to be responsible for the cutting machine of coal winning machine cutting part localization transformation project, lasted more than two years, and based on project practice to complete this paper.Limited to current models of transformation, the new motor must keep the original model and size of coal winning machine docking and matching interfaces cannot be changed, and it is also a company machine localization project requirement and purpose, to meet and to achieve this purpose, to better serve customers, motor design no more innovation and transformation of essentially, retention and validation in foreign original type strengths at the same time, more is the deficiency of the improvement and optimization of original productsAfter the completion of the prototype test, review, improvement, several successful through the type testing and factory test, sent to the mine field industrial test and trial period, which shows that the application of feedback motor optimization design is successful, and replacing the imported models at the present stage is completely feasible.