In order to ensure the normal operation of the motor, in addition to the normal use according to the operation rules, pay attention to normal monitoring and maintenance during the operation process, also should carry out regular inspection, good motor maintenance work. In this way, some faults can be eliminated in time to prevent the occurrence of faults and ensure the safe and reliable operation of the motor. The time interval for regular maintenance can be determined by the operating environment according to the form of the motor.
For the motor starting equipment, it is also necessary to timely clean the external dust and wipes the contact, checks whether there are burn marks in all wiring parts and whether the grounding wire is in good condition.
Check and clean the motor terminal. Check whether the wiring screws of the junction box are loose or burned.
Check all fixed screws, including anchor screws, end cover screws, bearing cover screws, etc. Tighten the loose nut.
Inspection of insulation condition. The insulation capacity of insulating materials varies with the degree of dryness, so it is very important to check the dryness of the motor winding. The electric insulation will be damaged by factors such as damp working environment of the motor and corrosive gas in the workshop. The most common is the winding grounding fault, that is, insulation damage, so that the live part and housing should not be charged metal parts of the collision, such a fault, not only affect the normal work of the motor, but also endanger personal safety. Therefore, the motor in use, should often check the insulation resistance, but also pay attention to see the motor chassis grounding is reliable.
Clean the motor. Remove dust and sludge from the outside of the motor frame in time. If it is used in environmental dust, it is better to be cleaned once a day.
Check the transmission device, make sure the pulley or coupling for any force, damage, installation is firm; If the belt and its connecting buckle are in good condition.
Professional point is the carbon brush of the machine maintenance, in the process of operation of the motor, the motor carbon brush wear is a cause of scrap of a very important factor, therefore the use of time to pay attention to the maintenance of motor carbon brush motor, that is to say, in the process of using regularly replace carbon brush, so the process of usage will be more smoothly.
Bearing inspection and maintenance. The bearings should be cleaned and the grease or lubricating oil replaced after a certain period of use. The time of cleaning and oil change should depend on the working condition of the motor, working environment, cleaning degree and lubricant type. Half of the work should be cleaned once every 3-6 months, and the grease should be changed again. When the oil temperature is high, or environmental conditions are poor. The motor needs to be cleaned and change oil more frequently.
In addition to regular maintenance of the motor according to the above items, the motor should be overhauled after one year of operation. The overhaul purpose is to carry out a thorough and comprehensive inspection and maintenance of the motor, to supplement the missing and worn components of the motor, to completely eliminate the dust and dirt inside and outside the motor, to check the insulation condition, to clean the bearing and to check the wear condition. Identify problems and deal with them timely.
Professional maintenance and maintenance of the other point is that a cooling fan, in the process of the motor is running, often there will be a problem is the electricity to happen out of the strange voice, mainly is the cooling fan, in the process of use due to not timely cleaning dust above the cooling fan, lead to appear in the process of the motor on the abnormal functioning of the phenomenon, therefore in the process of using the motor to ensure clean motor cooling fan.
To avoid corrosion of explosion-proof surface, apply oil or 204-1 replacement rust oil on the explosion-proof surface.
When assembling the motor, the windshield and fan should be taken first, and then the sleeve plate should be used to assemble the bolts of the end cover and the bearing cover. Then, the round wood or copper bar should be used to impact the shaft extension along the axis to make the end cover and the frame left. Finally, the rotor should be removed. Remove the parts, the explosion-proof surface should be placed upward, and cover with rubber or cloth gasket, tighten the bolts, spring pad and other fine do not lose.
Explosion-proof motor shall not be assembled casually. During assembling test, the explosion-proof surface of the parts should not be used as the fulcrum of the pry bar, and the explosion-proof surface should not be knocked or hit.
When dipping and assembling, the insulating paint or dirt attached to the explosion-proof surface should be cleaned. Hard objects such as iron sheets shall not be scraped, but the uneven places can be ground with whetstones.
