The maintenance current of the motor should not exceed the rated current on the nameplate, and the three-phase current imbalance should not exceed 10% at no load and 5% at medium load or above. The motor should be repaired, with minor repairs every month and major repairs at the end of the year. Every week, all components of the motor should be inspected for collector rings and dust on the surface of the motor should be removed.

When cleaning and inspecting the Y-series motor, open the observation window cover and dust discharge hole cover, and clean the collector ring room. If there are dust or oil stains on the surface of the collector ring, a cloth soaked in gasoline can be used to clean the dust and oil stains, and it is allowed to drive after the gasoline evaporates.

When the brush has worn out to the point where it cannot maintain its normal position and pressure, or when the brush has worn out to only 1/3 of its original height, the brush block should be replaced according to the instructions. The contact surface between the new brush and the collector ring after replacement should be machined into a corresponding arc to ensure good contact between the brush and the collector ring. When processing, a fine abrasive cloth should be used to fix it on the surface of the collector ring, and then the electric brush should be ground to the desired arc on the abrasive cloth to simulate the working conditions.

The brake of Xi'an Xima Electric Motor should be inspected before use. Pull the release bolt to see if it is flexible and if the brake can be released. Once confirmed to be correct, turn on the power again for no-load operation. If the brake is still not released after the motor is connected to the power supply, the motor will still be in a braking state. The power supply must be immediately cut off to avoid burning the motor. Check the rectifier excitation circuit of the electromagnetic brake, eliminate the fault, and then put it into trial operation.

Xi'an Xima Electric Motor Maintenance Reminder: After the motor has been running at no load for a period of time, it should be stopped and checked once to observe whether the mechanical connection parts are loose; Whether there is overheating or oil leakage in the bearings; Can the brake be fully disengaged. If there are any abnormal phenomena and noises during no-load operation, the vehicle should be immediately stopped for inspection, and necessary adjustments and repairs should be made before carrying out load operation.

In order to ensure the normal operation of high-voltage motors, in addition to using them according to operating procedures and paying attention to normal monitoring and maintenance during operation, regular inspections should also be carried out to ensure proper motor maintenance and upkeep. This can eliminate some problems in a timely manner, prevent faults from occurring, and ensure the safe and reliable operation of the motor. The time interval for regular maintenance can be determined based on the form of the motor and the operating environment.

Chain hoist

The maintenance content of high-voltage motors is as follows

1. Clean the motor. Timely remove dust and oil sludge from the outside of the motor base. If the environment is dusty, it is best to clean it once a day.

2. Check and clean the motor wiring terminals. Check if the wiring screws of the junction box are loose or burnt.

3. Check the screws of each fixed part, including foundation screws, end cover screws, bearing cover screws, etc. Tighten the loose nuts.

4. Check the transmission device, pulley or coupling for strength, damage, and secure installation; Is the belt and its coupling intact.

5. The starting equipment of the motor should also be cleaned of external dust and dust in a timely manner. The contacts should be wiped, and all wiring parts should be checked for burn marks and whether the grounding wire is in good condition.

6. Inspection and maintenance of bearings. Bearings should be cleaned and replaced with lubricating grease or oil after a period of use. The time for cleaning and oil change should depend on the working condition, working environment, cleanliness level, and lubricant type of the motor. Half of the time should be cleaned and replaced with lubricating grease every 3-6 months of operation. When the oil temperature is high, or when the environmental conditions are poor and there is a lot of dust on the motor, it is necessary to regularly clean and change the oil.

7. Inspection of insulation condition. The insulation ability of insulation materials varies depending on the degree of dryness, so it is very important to check the dryness of motor windings. The humid working environment of the motor and the presence of corrosive gases in the workplace can damage the electrical insulation. The most common type is winding grounding fault, which refers to insulation damage, causing the live part to collide with metal parts such as the casing that should not be live. This type of fault not only affects the normal operation of the motor, but also endangers personal safety. Therefore, during the use of the motor, the insulation resistance should be checked frequently, and attention should also be paid to checking whether the grounding of the motor casing is reliable.

8. In addition to regular maintenance of the motor according to the above items, a major overhaul is required after one year of operation. The purpose of major repairs is to conduct a thorough and comprehensive inspection and maintenance of the motor, supplement missing and worn components of the motor, completely eliminate dust and dirt inside and outside the motor, inspect insulation, clean bearings, and inspect their wear. Discover problems and promptly handle them.

Generally speaking, as long as used correctly, maintained properly, and faults are promptly resolved, the working life of high-voltage motors is a long time for motor maintenance.