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In general, when the teeth are shaved, the theoretical axis angle is between 10 and 15 degrees. Actually, it is not necessarily adjusted according to the nominal angle during the operation. Although a small amount of variation does not theoretically affect the conjugate condition when shaving, However, the position of the tooth surface contact line will change significantly.
When shaving the teeth, the angle of the shaft should be adjusted to minimize the center distance between the shaver and the gear. At this time, the shaver is in an optimal state, and the contact lines of the left and right tooth surfaces of the tool are moved to the middle position, requiring the minimum width of the shaver. . Offset the optimal axis intersection angle will move the tooth surface contact line to both ends, and the contact lines at the left and right ends are misaligned before and after. The unbalanced shaving force makes the shaving in a very unfavorable condition. If severely moved out, it is possible to form edge contacts that will seriously damage the gear quality and even the tool.
Old and new razors are equivalent to gears with different displacements. For example, when the teeth are shaved, the position of the contact line on the tooth surface of the nominal axis will be different. After the displacement, the tool will not be in the best condition. Therefore, the nominal axis angle cannot be used when the tool displacement is large, and should be adjusted appropriately. The influence of spur teeth is relatively small, and it has been proved that the minimum distance between the center of the tool and the gear is the optimum angle of intersection.
When shaving the teeth, the angle of the shaft should be adjusted to minimize the center distance between the shaver and the gear. At this time, the shaver is in an optimal state, and the contact lines of the left and right tooth surfaces of the tool are moved to the middle position, requiring the minimum width of the shaver. . Offset the optimal axis intersection angle will move the tooth surface contact line to both ends, and the contact lines at the left and right ends are misaligned before and after. The unbalanced shaving force makes the shaving in a very unfavorable condition. If severely moved out, it is possible to form edge contacts that will seriously damage the gear quality and even the tool.
Old and new razors are equivalent to gears with different displacements. For example, when the teeth are shaved, the position of the contact line on the tooth surface of the nominal axis will be different. After the displacement, the tool will not be in the best condition. Therefore, the nominal axis angle cannot be used when the tool displacement is large, and should be adjusted appropriately. The influence of spur teeth is relatively small, and it has been proved that the minimum distance between the center of the tool and the gear is the optimum angle of intersection.
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