Roots FansIn the process of using the high temperature situation, then how should we respond to such a situation? On this issue Roots fan editorial take you to understand.
1. Bearing problems
Bearing in the installation if there is a problem, resulting in bearing clearance is too small, fast turn to the next, will produce a lot of heat, resulting in bearing temperature is too high, and even fan the temperature of the whole machine is too high. Too much refueling, rolling bearing refueling volume is generally 1/3 to 1/2 of the bearing chamber volume, up to 2/3. Bearing fit is too tight, bearing clearance (i.e. mounting statement) is too small after assembly. Bearing axial expansion allowance is not enough, bearing gland pressure is too tight.
Grease accounted for the volume of the bearing chamber is not the more the better, lubricant - generally to the gear normal line, bearing with what type of, in the drive end of the words, - generally drive with the centering, driven with the ball, Roots fan may be driven end of the installation of the pressure is too tight, if not that is the bearing has a problem.
2. Gear installation clearance is too small
The meshing of gears and gears has a certain standard, not too large a meshing area, meshing is too tight, it will lead to mutual friction of the gears, resulting in excessive heat generation.
3. head motor is not in the same - level position head and motor belt is not in the same - level position, resulting in a certain degree of friction between the belt and the pulley, resulting in heat generation, resulting in increased pulley temperature.