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根据矿用牙轮钻头的布齿原则，利用坐标变换的方法，建立了生成原理图的数学模型，并开发了相应的CAD软件。该软件还可进行覆盖系数分析，提供优化布齿的依据
According to the cloth gear principle of mine roller cone bit, the mathematical model of generating schematic diagram is established by coordinate transformation method, and the corresponding CAD software is developed. The software can also cover factor analysis, to provide the basis for optimizing cloth teeth