Design And Optimization Of The Lifting Winch For Coal Mines

Principle, catalogue and requirement of the lifting winch for coal mines are introduced simply. Based on the requirements and the parameters provided by the user, the total design idea for the lifting winch is proposed. As a example, JTB-0.8*0.6A utilized in coal mines is designed. The design for the planet gear series is introduced in detail. The dimensions of all the parts of the planet gear series are determined. The box of the planet gear series is also designed. In order to force applied on the lifting winch, strength of the roller is calculated.Having finished the design for the planet gear series, UG is used to draw 3D figure of shift gear, and the parameterization design system is advanced. The characteristic parameters and 3D model of the shift gear are studied.And then, ANSYS is used to calculate the stresses of the planet gear series. It is founded from the numeric results that a segment of axis overlapped with side of gears or bears exists stress collection, these research results play a role of design for axis structure.The tool box for optimization is applied to build the math models for shift gear and the lifting mechanism of the coal winch, respectively. The minimum volume and the minimum distance between the centers are regarded as the objection of optimization. The optimization results are compared with the original, it is founded that the total volume of the deriving axis is 73.2% of the original and the distance between the centers is 88.89% of the original. It is obvious that the optimized production demands the less metal material and reduces the cost.