How long does it take for the bearings of electric vehicle motors to be serviced and replaced

Are you talking about the motor line inside or outside? It's all enameled wire.

There is no need to change it, the outside power cord is easy to change, just cut the Hall wire and take it off and connect it with a new wire.

The bearings of electric vehicle motors should be maintained every 2-6 months, lubricate and prevent rust of transmission parts, strengthen fasteners, and adjust the tightness of brake wires.

Routine maintenance. 1. Electric vehicles should be maintained every 2-6 months, lubricate and prevent rust on the transmission parts, strengthen the fasteners, and adjust the tightness of the brake line.

2. When charging the battery, first insert the output plug of the charger into the interface of the battery box, and then connect the input plug of the charger to the 220-volt power socket. The charging time should not be too long, and it is better to end 1-2 hours after the charger is fully charged, generally 8-12 hours (not more than 12 hours). When not charging, do not connect the charger to the AC power source with no load for a long time.

Most of today's electric vehicles are still lead-acid batteries, when using lead-acid batteries, we must develop the habit of charging on the same day of use, and never wait for the electricity to run out before charging, so as not to shorten the battery life due to "deep discharge". Also do not charge the battery with it upside down. If the battery is fully charged, if it is not used for a long time, it should also be recharged once a month.

The charger should use Yadea's special charger to avoid charging in high temperature and humid environments to facilitate the heat dissipation of the charger.

3. Use the electric vehicle correctly, and don't let the water submerge the motor shaft when riding. Usually the tires should be inflated sufficiently, and in summer, they should avoid long-term sun exposure, avoid storage in a high-temperature, corrosive environment, and the brakes should be moderately tight. It is best to use the pedal to help you ride at the beginning of the simple model to help save power.

Try to use pedal assistance on the bridge, uphill, headwind and heavy load driving to avoid impact damage to the battery caused by excessive current of the electric vehicle, which will affect the battery mileage and service life.

4. During maintenance, all problems with motors, batteries, controllers, and chargers must be repaired at Yadea's special maintenance center, and should not be disassembled casually.

There are several reasons for the noise failure of electric vehicle motors.

1.Large bearing clearance in the motor: motor bearing, also known as motor bearing or motor bearing.

It is a special bearing specially applied to electric motors or motors. A motor bearing is a part that supports a shaft. It can guide the rotation of the shaft.

Components that can also withstand idling on the shaft, and the concept of bearings is broad.

2.The internal motor moves axially.

3.Motor rotor sweep: It is also a rotating part in the motor. The motor is composed of two parts, the rotor and the stator, and it is a device used to convert electrical energy and mechanical energy. Motor rotors are divided into motor rotors and generator rotors.

4.The charcoal brush holder is loose and the carbon brush holder is not right.

5.The magnet is loose and falls off.

6.The surface of the commutator of the brush motor is oxidized, ablated, oily, uneven, and the commutator is loose.

Solution to the fault of electric vehicle motor noise.

1.Replace the bearings.

2.Appropriate washers are added axially.

3.Repair the stator and rotor.

4.Adjust the charcoal brush holder.

5.Rebond the magnets.

6.Clean the surface layer of the commutator or weld the commutator tab.

1. Use two movable wrenches to remove the rear wheel nut of the electric vehicle, and then take out the entire wheel drum.

2. Use an Allen wrench to remove the electric vehicle motor on the wheel hub, and use a round steel to knock out two bearings and take out the motor.

3. Remove the oil seal cover of the new bearing, apply butter on both sides, apply butter, then cover the oil seal, press the lid tightly, and then load it into the bearing box.

4. Hammer the buttered bearing into the bearing box, there are two bearings in the rear wheel, use a hollow iron pipe to knock the inner round sleeve of the bearing, be careful not to knock the bearing, install the shaft motor and then restore the original state.

The electric vehicle motor is generally guaranteed for three years, and the actual service life is generally 5 or 10 years depending on the motor (no one has used it for such a long time, anyway, the motor does not move it casually, and it is generally difficult to break). The key to the maintenance of electric vehicles is not the motor, the key is daily maintenance and battery protection.

Routine maintenance required for electric vehicles.

1. Before using the electric vehicle, attention should be paid to check whether the vehicle condition is good, such as whether the tire pressure is sufficient, whether the front and rear brakes are sensitive, whether the vehicle has abnormal noise, whether the screws are loose, and whether the battery is sufficient.

2. When the vehicle is just started, it should be accelerated slowly to avoid instantaneous rapid acceleration and damage to components. In order to prolong the life of the battery and motor, foot pedal assistance or force push should be applied when the vehicle is started and climbed.

3. On the premise of ensuring safety, the frequent braking and starting should be minimized during driving to save electric energy. When braking while driving, the speed regulator should be loosened to avoid damage to the motor and other parts (new cars are generally equipped with automatic power-off devices, but it is better to pay attention). When getting off the car to push, the power should be turned off to prevent an accident when the car starts suddenly due to the unintentional rotation of the speed control handle.

Lead-acid batteries generally have a service life of 1 or 2 years, and the quality of electric vehicle battery maintenance directly affects the service life of the battery. Electric vehicle batteries are afraid of power loss and high-current discharge, and consumers must do the following in their daily maintenance of the battery:

1. For the first charge, it should be charged continuously for 18 hours;

2. Charge in time after each drive, and it is strictly forbidden to drive without power;

3. It is strictly forbidden to put the battery on hold for a long time without using or charging, under normal circumstances, it is best to replenish the battery every half a month after a long time of shelving;

4. Develop a good habit of pedaling when climbing and loading.

1. It can be changed.

2. Use professional bearings to pull the machine; Pull out the broken bearings;

3. Bearings of the same specification; (Note the oil seal.)

To be on the outside) with pressure mechanically parallel and slowly pressed into place.

4. After cooling (shrinking) the bearing, quickly put it into the bearing seat; It can be fixed when it returns to room temperature (expansion).

5. The actual repair effect of the above methods is limited; Because the bearing is an interference fit.

assembled; Rigid pull-out has increased the diameter of the housing; The new incoming bearing has less bonding force with the seat. It is easy to have the fault of the outer edge (ring) of the bearing.