A high-order tooth surface error correction method for spiral bevel gears

Abstract

The invention discloses an error correcting method for a high-order tooth surface of a spiral bevel gear, and belongs to the technical field of gear transmission. The method comprises the steps: (1),obtaining basic design parameters of the tooth surface of the spiral bevel gear; (2), measuring the error of the tooth surface of the spiral bevel gear through a CMM method; (3), preforming the fitting of measured error point data of the tooth surface into an error tooth surface through a high-order polynomial method to obtain a high-order tooth surface error polynomial; (4), completing the correction of the high-order tooth surface error polynomial through an L-M algorithm. The method provided by the invention makes the most of the high-order characteristics of the universal processing parameters, achieves the active creating of the high-order form of the tooth surface error, provides a reverse adjustment correction function of the design parameters of the high-order processing parameters, and completes the high-order correction of the tooth surface error. The method achieves the automatic recognition and measurement through the CMM method, builds the feedback correction function which takes the processing parameters as the design variables, performs the precise solving, and achieves the automatic correction and compensation for the tooth surface error through correcting the reverse adjustment quantity of the actual processing parameters.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to a high-order tooth surface error correction method of a spiral bevel gear. Background technique [0002] Spiral bevel gears are widely used in mechanical transmission fields such as automobiles, aviation, and mining due to their advantages such as large overlapping coefficient, strong load capacity, high transmission ratio, stable transmission, and low noise. There are two types of spiral bevel gears, one is the spiral bevel gear, the axis of the large wheel and the axis of the small wheel intersect; the other is the hypoid spiral bevel gear, the axis of the large wheel and the axis of the small wheel have a certain offset distance . At present, the world-class companies producing spiral bevel gears are mainly Gleason Company in the United States and Oerlikon Company in Switzerland. The spiral bevel gear made of Gleason teeth is widely used in our country ...

AI Technical Summary

Problems solved by technology

However, in the traditional tooth surface error correction process, only the first-order or second-order composition forms of the error tooth surface are often considered, and the influence of the precise higher-order form on the contact performance of the tooth surface is ignored.

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