What is the reason why the motor of the overhead crane cart is buzzing while it is moving?

According to what you say, there are only three possibilities, first: it may be caused by the lack of phase of the motor, you can use a universal meter to detect whether the three-phase electricity reaches the motor evenly, if not, then look at the AC contactor and the coil on the control cart, and then there is a resistor, time relay. Second:

It may be that the bearing in the motor is broken, you can disassemble the tail cover of the motor to see the brake disc, when the car is running, whether the brake disc can pop out, if it can't be bounced, it is the bearing, if the brake disc is very shaky when rotating, this also proves that the bearing is broken. Third: This is a very simple assumption, that is, the screw of the tail cover of the motor is off, causing friction between the tail cover and the brake disc.

Note that before the cart motor is not repaired, it is best not to use it first, if you use it, it is easy to burn out the motor.

Well, I wish you a speedy repair of the crane!

This sound has different interpretations for different environments!

First of all, you have to judge before you can draw conclusions!

1. The ammeter measures whether the three-phase current is balanced.

Second, the power grid voltage fluctuation.

3. If the torque is too large, it is normal to make such a sound: check whether the brake is too tight; Check the wheels for jamming; Check whether the reducer is jammed;

Fourth, there is no problem with the motor bearing, with the help of the listening stick; the case of No. 2 lithium grease of bearing; The contact situation of the carbon brush, whether it is worn badly.

Fifth, whether there is a problem with the speed regulating device of the car, see the size of the running current.

If it is a speed regulation, it is a bad speed regulating resistance or contactor, and it is a poor termination (star sealing) that causes the motor to be out of phase (seemingly broken) or the carbon brush at the tail of the motor is in poor contact and disconnected.

Either it is overloaded, or the motor coil is aging and the power is not enough.

Domestic motors are generally, and imported motors are generally.

Electric machinery (commonly known as "motor") refers to an electric wax orange magnetic sock trace device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. In the circuit it is indicated by the letter M (D in the old standard).

Its main function is to generate driving torque, as a power source for electrical appliances or various machinery. Generators are represented in circuits by the letter G. Its main role is to use mechanical energy to convert into electrical energy, and the most commonly used at present is to use thermal energy, water energy, etc. to push the generator rotor to generate electricity.

Untie the motor of the cart to the wheel, start, measure the speed at each gear to see how big the difference is, and see if it is a fault with the motor;

If not, see if there is a problem with the gearbox.

Measure the large wheel rim first, and rule out the difference in the size of the wheel rim caused by not replacing it at the same time. Whether the contacts of the contactor are flat, measure the cutting resistance of one gear at a time, see if the two groups are equal, and see if the DC delay is synchronized. The rest of the movement is bigger.

Ensure the balance and synchronization of the cart, and prevent rail gnawing or derailment.

The A571 crane is a motor in the middle, but it has been eliminated, and the running part is stable, noisy, and easy to lame.

This depends on the use of the manufacturer, the traditional A571 has been eliminated, the most powerful reason is because of the synchronization problem!

If you have one, it seems to be unbalanced.

The abnormal sound of the motor indicates that there is a problem with the motor working and the bearing lacks oil? Lack of phase in the motor? Worn motor end caps? Stator sweep? Rotor breaks? will cause!! Please check it well!!

Just buy a book, Beijing XCMG sales and service center may have books, go to ** to consult.

Yes, the reducer driven by the cart motor is located in the middle of the girder, and the low-speed shaft of the reducer adopts the type of double output shaft, and then connects with the wheels of the cart at both ends through two long shafts with flanges. However, there are certain restrictions on the span of this configuration type of bridge crane.

This problem can be summed up as follows: the motor does not have commutation.

Different reasons for the electrical system are also different.

Contactor system, frequency conversion system, stator pressure regulating system, non-contact systemWe manufacture equipment such as overhead cranes.

You can choose YZR series or YZP inverter series.

We manufacture equipment such as overhead cranes.

Choose a motor, or a motor.