The transmission characteristics and correct Meshing Conditions of involute straight bevel gear and bevel gear are analyzed and compared
Bevel gear drive is a kind of intersecting shaft drive (also has a staggered shaft transmission, more complex, slightly), the bevel gear tooth shape is different, the transmission quality (noise, vibration, etc.) is different. In general, the bevel gear meshing condition is correct: the back cone module and pressure angle must be equal, the two gear cone angle and equal to the shaft angle, the back cone distance.
Helical gears, which belongs to the parallel shaft gears (also crossed helical gear drive, but belongs to the helical gear drive, drive, omitted) will be generated when the axial force, it is necessary to take structural measures to "resist" axial force, low noise transmission, stable transmission (than spur gears); the correct meshing condition is: two the gear modulus calculation method, normal pressure angle must be equal, and the spiral angle of two gears, equal and opposite rotation direction (a left and a right)
The spur gear drive belongs to the parallel shaft gear drive, does not produce the axial force (than the helical gear), the transmission noise and vibration are larger; the correct meshing condition is: the two gear modulus and the pressure angle must be equal.
