What are the reasons for the rising temperature of the Marine continuous vacuum packaging machine?

What are the reasons for the rising temperature of the Marine continuous vacuum packaging machine? If the temperature rise is too high during operation, the service life will be shortened and fire will be caused. If it is found that the temperature rise of the motor is too high, it should be shut down immediately. The reasons for excessive temperature rise are as follows:

1. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? The generator load of vacuum packing machine is too heavy. If the drive belt is too tight and the rotating shaft is not flexible, the motor may run under load for a long time. At this time should be appropriate with the mechanical maintenance personnel to loosen the belt to check the mechanical equipment, make the shaft flexible, and try to adjust the load, so that the motor to maintain the rated load state of operation.

2. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? Packaging machine generator working environment is bad. If the motor is exposed to sunlight, the ambient temperature exceeds 40°C or the air is not well ventilated, it will cause the temperature rise of the motor to be too high. Can build simple shade shade or use blower, fan to blow air, to remove the motor itself air duct oil and dust, in order to change the cooling conditions.

The supply voltage is too high or too low. For the automatic vacuum packing machine, the motor can keep the rated capacity unchanged when operating within the power supply voltage variation of -5~+10 percent. If the power supply voltage exceeds 10 percent of the rated voltage, the magnetic flux density of the core will increase sharply, so that the iron loss will increase and the motor will overheat. The specific inspection method is to use the ac voltmeter to measure the bus voltage or the terminal voltage of the motor. If the circuit voltage drop is too large, should replace the larger area of the wire and shorten the distance between the motor and the power supply.

3. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? Power failure. If the power supply is out of phase, the single phase operation of the vacuum packaging electromechanical motor will cause the winding of the motor to heat up and burn up in a short time. Therefore, check the motor's fuses and switches first, and then use a multimeter to measure the front circuit.

4. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? Cage rotor guide bar fracture, open welding or rotor guide bar cross section is too small, so that the loss increases and heat, rotor temperature can be tested after shutdown, find out the cause of fault and eliminate.

5. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? If the air-controlled vacuum packing machine and the box-packing electromechanical machine start frequently or turn too many times, the starting times should be limited, and the overheating protection should be selected correctly or the motor suitable for the equipment should be replaced.

6. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? If the three-phase voltage is seriously unbalanced, it is necessary to check whether there is short circuit between the stator winding phases or turns and whether the stator winding is grounded.

7. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? If the bearing is badly lubricated or stuck, check whether the temperature of the bearing chamber is higher than that of other parts; Check whether grease is too little or dry.

8. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? The failure of the ventilation system is caused by the blocking of the wind road or the accumulation of too much ash on the heat sink.

9. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? Friction between rotor and stator core causes continuous metal impact sound, which is easy to cause local temperature rise to be too high. Use heart check to find out the cause of the trouble.

10. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? Adopt the motor of axial-flow fan, if fan rotation direction is opposite, also can cause motor overheating.

11. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? Transmission device failure (friction or jammed phenomenon), resulting in motor over-current hair, even make the motor stuck not to turn, resulting in a sharp rise in the temperature of the motor, winding is soon burned out.

12. What are the reasons for the rising temperature of Marine continuous vacuum packaging mechanical and electrical motor? Due to the change of winding parameters, the rewound motor will generate heat during trial operation. The three-phase no-load current of the motor can be measured. If it is larger than the rated value, the number of turns is insufficient, and the number of turns should be increased.

13. What are the reasons for the rising temperature of Marine continuous vacuum packaging electromechanical motor? External wiring error, delta motor connection into the ya connection. Although it can be started and run with load, the slightly larger load current may exceed the rated current and cause heat. If the ya connection motor mistakenly connected into delta connection, no load can exceed the rated current and unable to operate.