XU Zhong-si(徐忠四)1, SU Tie-xiong(苏铁熊)1, JIN Lei(金磊)2
(1. School of Mechatronic Engineering, North University of China, Taiyuan 030051,China; 2. School of Information and Communication Engineering, North University of China, Taiyuan 030051, China)
Abstract：In order to improve the machining accuracy of spiral bevel gear, difference surface was adopted to characterize its global form deviations quantifiably and correct its deviations. The theoretical tooth surface model of spiral bevel gear was built, and the actual tooth surface of spiral bevel gear had been got by using latticed measurement. The equation of difference surface which can characterize the actual tooth surface deviations was built by means of mathematical method in combination with measurement principle. The quantitative mathematical relationship between the actual tooth surface deviations of spiral bevel gear and the corrected values of the machine-setting parameters had been referred, and the theoretical correction formula of the global form deviations had been got by the least square method. Finally, the pinion of spiral bevel gear in the automobile rear axle has been set for an example to account for the effectiveness of the deviation correction by use of the difference surface method.
Key words：spiral bevel gear; global form deviation; difference surface; latticed measurement; correction of machine-setting parameters
CLD number： TH132.422 Document code： A
Article ID： 1674-8042(2012)01-0001-09 doi： 10.3969/j.issn.1674-8042.2012.01.001
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