About the diagonal contact of spiral bevel gears?The direction of the contact line bevel gear 1, the theory on short around the percentage to determine, through the short rate calculation can get around the contact line direction and perpendicular to the direction of teeth, so to avoid a diagonal contact. If the contact line direction and perpendicular to the direction of the tooth would appear diagonal angle contact? What kind of contact? Always want to know.2, spherical involute bevel gear can not be carried out, usually uses the back cone approximation method is transformed into equivalent gear, but the spherical involute cone back projection, the back cone expansion is not a completely correct plane involute, many of the books is the only plane involute approximate, then the approximate equation of plane involute can have a way to seek out? Do not use what way, a master can provide a train of thought?
1. the result of the diagonal contact is caused by the unequal pressure angle at the upper angle of the gear. The 2. solution can adjust the gear to roll ratio according to the situation
The outside diagonal is absolutely not allowed, and the proper inner diagonal can reduce the contact noise
The diagonal contact often occurs in the cutting process of spiral bevel gears, especially hypoid gears
