采煤机牵引部壳体铸改焊方案优化分析

Optimizing Analyzes of Casting Model and the Welding Model for Shear’s Haulage Shell Unit

对采煤机牵引部铸造壳体模型和焊接壳体模型进行有限元仿真结果的对比分析,得出焊接壳体模型的薄弱环节。通过对焊接牵引部应力较大部位进行结构和工艺的改进,提高了采煤机焊接壳体结构的可靠性和使用寿命。

Compares the simulation analysis results of shearers＇ casting haulage unit model with the welding haulage unit model. Obtains weak positions of the welding model, and carries some structures and craft improvements to those positions. It can provide the theory basis to forecast weak positions of product before manufacturing, thus enhances the reliability and the service life for shearers.