If a pair of conjugate gears have different coefficients, can the hob be used in general? The addendum of the tooth is required
If the basic parameters of the gear are the same (m * ha * C *), and the tip of the tooth has no trimming, the hob can be used in general. When the addendum of the gear tooth is required, it should be analyzed. If the coefficient of variation between the two coefficients is not large, and the margin of repair is not very strict, there is a general possibility. If the X difference is large, it can not be universal, there will be the top of the tooth repair margin is too small phenomenon. Even when x=0 is rolling with the same knife, the average number of rolls is less, and the gears are smaller at the time of repair, while the number of teeth rolled seems larger.
We know that a pair of angle changing gears with unequal coefficient of change is not equal to 0, and his teeth are of different height. However, the tool edge is in accordance with the hob to pitch circle root circle direction follow certain dimensions of manufacturing tool edge starting point, and the gear tooth height because the modification coefficient is not the same as the height difference, top gear and gear tooth tangent, and this kind of hob is. The gear tooth top to the edge starting point is fixed, then the gear is cut after the addendum modification on the size difference is too much, so the hob is not universal
We know that a pair of angle changing gears with unequal coefficient of change is not equal to 0, and his teeth are of different height. However, the tool edge is in accordance with the hob to pitch circle root circle direction follow certain dimensions of manufacturing tool edge starting point, and the gear tooth height because the modification coefficient is not the same as the height difference, top gear and gear tooth tangent, and this kind of hob is. The gear tooth top to the edge starting point is fixed, then the gear is cut after the addendum modification on the size difference is too much, so the hob is not universal
