Seven, the motor is difficult to start, rated load.
Motor speed is lower than rated speed
1, the cause of the failure
1 power supply voltage is too low;
2-sided connection motor misconnection;
3 rotor is welded or broken;
4 The rotor local coil is misconnected and reversed, and the number of turns is increased when repairing the motor winding.
5 Motor overload.
2, troubleshooting
1 measure the power supply voltage and try to improve it;
2 correct the connection;
3 check the welding and breakpoints and repair;
4 Check the misconnections and correct them;
5 restore the correct number of turns;
6 load shedding.
Eight, the motor is overheated and even smokes
1, the cause of the failure
1 power supply voltage is too high;
2 The power supply voltage is too low, the motor is operated with the rated load, and the current is too large to make the winding heat;
3 When repairing and removing the winding, use the thermal disassembly method improperly to burn the iron core;
4 motor overload or frequent start;
5 motor phase loss, two phases running;
6 Rewinding is not sufficient for the winding immersion paint;
7 Ambient temperature is high. The motor surface has a lot of dirt, or the air duct is blocked.
2, troubleshooting
1 reduce the power supply voltage (such as adjusting the power transformer tap);
2 increase the power supply voltage or change the thick power supply wire;
3 overhaul the iron core to eliminate the fault;
4 load shedding; control start according to the specified number of times;
5 resume three-phase operation;
6 using secondary dipping paint and vacuum dipping process;
7 Clean the motor, improve the ambient temperature, and adopt cooling measures.
Nine, the motor vibration is large during operation
1, the cause of the failure
1 due to excessive wear bearing clearance;
2 air gap is not uniform;
3 rotor imbalance;
4 shaft bending;
5 Coupling (pulley) coaxiality is too low.
2, troubleshooting
1 overhaul the bearing and replace if necessary;
2 adjust the air gap to make it uniform;
3 correct rotor dynamic balance;
4 straight shafts;
5 Recalibrate to make it compliant.
Ten, bearing overheating
1, the cause of the failure
1 too much or too little grease;
2 oil quality is not good with impurities;
3 The bearing is not properly matched with the journal or end cap (too loose or too tight);
4 bearing inner hole eccentric, rubbing with the shaft;
5 motor end cover or bearing cover is not flat;
6 The motor and load coupling is not corrected, or the belt is too tight;
7 bearing clearance is too large or too small;
8 The motor shaft is bent.
2. Troubleshooting
1 add grease according to the regulations (1/3-2/3 of the volume);
2 replace the clean lubricating grease;
3 over-loose can be repaired with adhesive, over-tightening the car, grinding the journal or the inner hole of the end cap to make it suitable;
4 Repair the bearing cover to eliminate the rubbing point; please pay attention to the micro-signal technology training for more exciting content;
5 re-assembly;
6 recalibrate and adjust the belt tension;
7 replace the new bearing;
8 Correct the motor shaft or replace the rotor.
Mikkeli AGV can carry out material handling tasks efficiently, accurately and flexibly, and multiple AGVs can form a flexible logistics handling system that can be adjusted in time with the adjustment of the production process, enabling a production line to produce ten Several products have increased the flexibility of production and the competitiveness of enterprises. The Mi Ke Li Mei AGV is a good choice for your automatic handling!
