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本文在分析双圆弧齿轮传动和制造特点的基础上,提出了双圆弧齿轮滚刀的齿形设计方案,其目的是提高滚刀齿形的理论精度和制造精度。现在生产上广泛使用的三种设计方案都不能满足提高齿形设计和制造精度的要求。采用向量矩阵法按空间啮合原理建立的滚刀轴向齿形的数学模型和编制的FORTRAN程序,在计算技术飞速发展的今天,是双圆弧齿轮滚刀设计中的一种迅速、准确和经济的设计方法(每把滚刀的设计费用不超过0.5元)。1978年以来,我们曾用这种方法设计和制造过M4.5、M7和M8等FSPH-75型双圆弧齿轮滚刀,并在与上海工业大学合作进行的齿轮封闭台架试验中得到满意的实用效果。
Based on the analysis of double arc gear transmission and manufacturing features, this paper presents a gear design of double arc gear hob, the purpose of which is to improve the theoretical precision and manufacturing precision of gear tooth profile. The three designs now widely used in production can not meet the requirements of improving the profile design and manufacturing precision. The mathematical model of hob axial tooth profile and the programmed FORTRAN program which are established by the vector matrix method according to the principle of space meshing are today a fast, accurate and economical tool design for double arc gear hobbing with the rapid development of computing technology The design method (each hob design costs no more than 0.5 yuan). Since 1978, we have designed and manufactured FSPH-75 double-circular gear hobs such as M4.5, M7 and M8 in this way and are satisfied with the gear-enclosed bench test in cooperation with Shanghai Polytechnic University The practical effect.