掘进机截割头辅助设计软件的研究与开发

针对目前国内掘进机截割头设计大多凭经验进行以及截割负载的非线性、时变性和强耦合等特点，通过对纵轴式掘进机截割头的分析与研究，建立了截割头负载的瞬态动力学模型；基于VC＋＋和MATLAB联合开发了用于掘进机截割头设计和负载计算的计算机辅助设计软件。应用此软件可以获得截割头载荷波动曲线及波动系数、生成截割头瞬时负载的文本及截割头三维参数化实体模型，以评价截割头设计的合理性并进一步指导截割头的优化设计；解决了掘进机截割头设计中盲目缩放几何尺寸及其负载计算因人而异造成设计与计算结果迥异的问题；为新型截割头的研发及对现有机型的改进提供了新的方法和手段。软件界面友好、操作简单、方便实用，使基于科学方法的截割头计算机辅助设计在工程中的应用和推广成为可能。

Researches and Development of Aided Design Software for Roadheader's Cutting Head

At present, aimed at the problems that domestic design on cutting head of roadheader is usually dependent on experience, as well as the characteristic of cutting load, nonlinearity, time-varying, strong-coupling, and so on, transient dynamics model of load of cutting head of longitudinal road header is established by analysis and studied. A computer - aided design software is developed by VC ＋ ＋ and MATLAB for design and load calculation of cutting head. The undulation curve and fluctuation coefficient of cutting head load are gotten. The text of cutting head momentary load and three-dimensional parametric entity model are generated, so as to evaluate the rationality of cutting head design and guide the optimal design of cutting head. Therefore the problems from scaling geometry blindly and load calculation resuh＇s difference between human and computer in cutting head＇s design are solved. New means are provided for development of a new-type cutting head and improvement of existing models. The software has friendly interface, convenient and practical. It makes the application and extension of cutting head computer-aided design based on science method in the engineering field possible.