Rm-zc how to remove the axial fan impeller?
Make the jack reaction box disassembly: if the fan impeller hub has a hole, you can make a jack reaction frame, the impeller disassembly. Specific approach is:1. Prepare the screw thread corresponding to the dismounting hole on the wheel hub;2, do a jack base bracket, used to connect the tail end of the screw rod;
Upside down heating method: if there is no disassembly hole on the hub of fan impeller, the fan impeller should be hoisted and disassembled by inverted heating method. This method is usually used for double suction and double support large fan rotor. specificIt is set on both sides of the demolition of impeller hub, the impeller shaft of the lift on the impeller above three bar and baking gun rapid heating, thermal expansion impeller, due to gravity, will fall on their own. Attention to good fall
The jack is pressurized to push the hub impeller out of the axle;5, at the same time, using a baking gun, slow fan heating evenly;6, if not only once, may axial temperature rises, the temperature dropped to room temperature and the hub of reheating temperature, only the expansion gap.7, as mentioned above, pay attention to the impeller with a gourd hanging in the fan housing, to prevent falling.
Use the impeller puller: if the fan impeller is removed from the field, the fan shaft can be pressed down directly on the fan impeller puller to remove the fan impeller. This method is the most simple and safe. Under normal circumstances, the operation time is only 1-2 hours.
