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2 Oil leakage from the gearhead When the gearbox leaks and flows into the motor, it will burn the motor. In the actual operation, it is necessary to strengthen the sense of responsibility of the operators, and it is impossible to see the blind refueling without looking at the oil line. In addition, in the design, it is also necessary to consider the overhaul and refueling positions of the discharge-level vibration-reducing gears that are over 1.5 meters above the maintenance platform.
3 The card axis is mainly due to the thermal expansion of the spindle. The expansion margin in the design is not enough, so that the vibrating shaft will be stuck; the supporting Bearings of the vibrating shaft will have very serious wear; the wear sleeve of the hammer The gap is small, and the rotation of the hammer after sticking is not flexible and it is easy to hang around with other constructions. After the shaft has appeared, the maintenance personnel should stop the furnace and perform the inspection inside the electrostatic precipitator so that it can resume normal work in time.
4 Drive shaft motor failure The most common faults of the drive shaft motor during actual operation are burnout and heat generation. When the motor heats up, you can hear squeaks, smoke and stop the rotation; you can hear explosions when the motor burns. The main reason for this failure is that the rapping drive is built in the power plant because of the expansion displacement caused by the heat, so that the center of the bearing will be staggered, the rotation resistance torque will increase, and eventually the motor will be burned. In order to effectively avoid the transmission shaft motor failure, the following measures can be used in the design: Set a fixed retaining ring at a distance of more than 5mm from the left and right end faces of the bearing; install an axial fixed bearing at a suitable position on the rapping shaft. It can effectively control the axial turbulence of the rapping shaft, and it can also compensate for the thermal expansion of the shaft.
5 Discharge-grade Vibratory Drive Ceramic Shaft Fracture In order to be able to effectively avoid breakage of the vibrating drive porcelain shaft of the discharge stage, very rigorous inspections are required, and it is not possible to use a transmission porcelain shaft with no certificate and surface damage. In addition, carefully inspect the protective cover of the transmission porcelain shaft, clean the accumulated dust in the protection box in time, wipe the dust and scaling on the clean suspension insulator and the porcelain rotating shaft, and timely perform the deformation, displacement and damage of parts. repair.
Rapping system failures and solutions
1 Vibrating bias position When the vibration of the vibrating shaft occurs and the vibrating hammer shaft wears out, the vibrato deviation will occur. Although in actual design consideration was given to the addition of a limiting device to the fixed bearing seat, it is still difficult to control the thermal expansion axis.