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为了对齿形误差曲线进行分析和处理,须在曲线上作一倾斜中线如B—B,使在测量长度范围内这根中线左右两侧的齿形曲线所包容的总面积相等。由这根倾斜中线所代表的曲线的倾斜,是由齿轮的实际基圆半径与理论基圆半径不一致而引起的。根据曲线的倾斜程度,即倾斜中线的斜率,可按一定公式计算出齿轮的基圆偏差。根据基圆半径偏差,又可计算出分度圆压力角偏差。同时,自齿形误差曲线的
In order to analyze and process the tooth profile error curves, an inclined centerline such as B-B is to be made on the curve such that the total area contained by the tooth profiles on the left and right sides of this center line within the measurement length is equal. The inclination of the curve represented by this slanting midline is caused by the fact that the actual base circle radius of the gear does not coincide with the radius of the theoretical base circle. According to the degree of inclination of the curve, that is, the inclination of the inclined centerline, the basic circle deviation of the gear can be calculated according to a certain formula. According to base radius deviation, but also calculate the pressure angle deviation angle. At the same time, since the tooth profile error curve