What is the reason for the slowdown of the wind speed when the fan is activated when the fan is runn

1. Containing bearings (ball bearings are generally used for household ceiling fans, and shaft sleeves are generally used for floor fans and table fans) are lubricated and dry, greasy, so that the rotational resistance becomes greater (the greatest likelihood. Cleaning and lubricating oil to exclude);

2. The capacitance of the starting capacitor decreases (the possibility is very high); The starting torque will be significantly reduced, and the starting time will be long. There is no obvious effect on the rotational speed after starting; If the starting capacitor fails (no capacitance), it generally cannot be started automatically, and sometimes it is forward, sometimes it is reversed. When the external force is applied, it starts to run with the direction of the external force; There is a certain percentage of unqualified capacitors on the market.

For example, the package volume is normal, the capacitor body is very small, the same specification is small or the same specification and volume, but the weight is light, etc.; The replacement of such capacitors has a very short life (encountered many times during repairs in the early years);

3. Slight short circuit between turns of the wire package (about several turns). The rotational speed decreases, and the heat is severe. Burned at the end;

4. The assembly of the maintenance machine is unreasonable, there is a sense of damping, and the rotation is not smooth.

5. Shaking head part malfunction. This failure rate is relatively high, and the main phenomenon is that the shaking head is not smooth or does not shake the head;

6. The power supply voltage is too low;

7. Slight sweeping (less likely). When the power is not on, the rotation is flexible and smooth.

8. The capacitor capacity decreases over time, resulting in a smaller secondary winding current, resulting in a longer start-up time.

This situation should be an old-fashioned electric fan, the old-fashioned electric fan shakes its head by relying on the fan spindle to drive the gearbox plus the pull rod to shake the fan head, and the fan speed of the shaking head fan slows down, the fan head and the shaking head gearbox should be disassembled and cleaned after refueling, and the oil treatment can be restored, because all the shafts have oil stains and hardened, and the shaft is stuck and cannot be rotated.

Causes and solutions for electric fans not to shake their heads

Reason:For mechanical control, floor-mounted electric fans cannot shake their heads, which is mostly a mechanical failure.

Solution: The gear in the plastic shaking head mechanism is worn, slipping or the moving head connecting rod is falling off, etc.; For the microcomputer-controlled floor-standing electric fan can not shake the head, generally the shake head drives the thyristor open circuit or the shaking head synchronous motor is damaged, the parts can be replaced, if the cost of the parts is large, you can choose to change it to a ceiling fan.

Hongyun fan air guide failure

The main reason for the failure of Hongyun fan is that the wind deflector switch is damaged, the wind guide motor is damaged, the turning page fixed ring is too tightly screwed and the rotating shaft collar is worn and stuck, etc., the user needs to check the wind guide switch and the wind guide motor.

Multimeter RX1 gear to measure whether the conduction switch can be turned on and off normally, if it can not be conducted, it means that the internal contact of the switch can not be closed, and the wind guide motor can not be electrified to rotate the wind conduct, then the wind guide switch needs to be replaced to troubleshoot.

You can use a multimeter RX1K to measure the damage of the wind guide motor on the road, if it is damaged, you need to replace the wind guide motor of the same specification to eliminate the fault, these motors can be purchased in after-sales or hardware stores.

There are generally two ways to shake the head mechanism of an electric fan:

1. One is the turbine worm shaking head mechanism, and the other is the use of a geared motor to drive the crank connecting rod mechanism to shake the head.

2. When the electric fan is used, it will start the shaking head mechanism by itself, which often appears in the turbine worm shaking head mechanism. Because the control button of this mechanism, above the fan head, there is a button, when the button is pulled up, the fan shaking head mechanism stops working, and when the button is pressed, the shaking head mechanism starts working. As shown in Fig

3. This control button, sometimes due to the slight vibration of the fan's rotation, the button will automatically fall down, turn on the shaking head mechanism, and start the fan shaking head.

4. The reason for this failure is that the turbine worm gear has a ball with a spring as a limiter, and because the spring elasticity is not enough, it loses the limiting effect, so that the shaking head button automatically falls down and turns on the shaking head mechanism.

5. Solution: Open the outer cover of the electric fan motor, open the shaking head mechanism, find the limiting ball spring, stretch the spring by hand to increase the elastic force, and then install it, this fault will be eliminated?

The electric fan does not shake its head for the following reasons:1. The rotor shaft is not concentric: the gap between the shaft and the bearing pad is too large, which is mainly due to the collision and extrusion of the fan blade, the dynamic balance is destroyed, causing jitter, and the cherry peel is caused by long-term wear.

2. Poor fan maintenance, poor spine chain in long-term operation without lubrication.

3. If the end is deformed or the pressure plate is loose, the exclusion method can open the rear end cover and take out the rotor. Check the gap between the tile and the shaft, the gap is too large to use. If the bearing is badly damaged and the rotor shaft is worn, it should be replaced with a new one.

The reason why the fan shakes its head and does not turn:

First, the reason for not shaking the head is that the shaking head is blocked, which is caused by the deformation and bending of the connecting rod, and then there will be a "of" sound, and the deformed connecting rod can be removed and eliminated after shaping.

Second, it is the transmission failure, so that the power can not be transmitted, and the tooth rod, swing head plate, gear box, and clutch can be checked.

If it is found that there is a phenomenon such as falling off, having a foreign body stuck, and not being able to mesh after serious wear, the lost parts should be excluded or replaced.

Three, electric fan.

Most of them use oil-impregnated bearings. Such bearings are usually powder metallurgy products. It is tightly wrapped in the oil hole inside the bearing for lubrication.

When the electric fan is working, the temperature of the motor rises, and the friction between the shaft and the bearing generates heat, which will gradually reduce the lubricating oil. If the lubricating oil is not properly replenished, the electric fan motor will not be able to maintain normal operation, and there will be a phenomenon that the speed will be reduced or even not rotated, and the motor will be burned. It can extend the use of the electric fan during the use of the oil from the oil injection port every 1 2 months.

Sewing machine oil or spindle oil can be used.

Fourth, use lubricating oil in the gearbox of the electric fan. Generally, it is replaced every 3 years and 4 years. When replacing, first remove the rear cover, remove the balance key, then remove the gearbox cover, gently scrape off the old grease inside with a small bamboo chip, then wash it with clean gasoline, and then add an appropriate amount of new grease.

Notes:

This is mainly caused by broken wire cables or loose ties in the remote control clutch or shake head control device. If the steel wire is broken, it can be replaced with a new steel wire flexible shaft, and the tie head is loose, as long as the number of sets of metal heads is re-fixed.

There are two kinds of shaking head control, one is to drive the connecting rod to shake the head by the reduction gear, which is not to shake the head, which is gear slippage.

The other is the rock only synchronous motor.

In addition to the failure of the shaking head motor itself, it is also possible that the control circuit and switch are broken. In the case of a remote control fan, it may also be a driving triode. Issue.

Summary. Hello dear, <>

I'm glad to answer for you, the fan keeps bobbing and shaking his head, which is mainly caused by broken wire cables or loose ties in the remote control clutch or shaking head control device. If the steel wire is broken, the new steel wire flexible shaft can be replaced, and the tie head is loose, as long as the metal head of the casing is re-fixed. 1.

If the shaking head is blocked, it may be caused by the deformation and bending of the connecting rod, and the connecting rod of the electric fan can be repaired. 2.If the electric fan transmission fails, then you can check the swing head plate, clutch, etc., and repair the parts.

3.If the bearing of the electric fan is rusty and you can't shake your head, you can apply some lubricating oil to the bearing.

What to do if the fan keeps shaking its head.

Hello dear, <>

I'm glad to answer for you, the fan has been shaking his head and shaking his head, which is mainly caused by the broken wire of the steel spring resistance ball in the remote control clutch or shaking head control device or loose tie. If the steel wire is broken, the new steel wire flexible shaft can be replaced, and the tie head is loose, as long as the metal head of the casing is re-fixed. 1.

If the shaking head is blocked, it may be caused by the deformation and bending of the connecting rod, which can be solved by repairing the connecting rod of the electric fan over time. 2.If the electric fan transmission fails, then you can check the swing head plate, clutch, etc., and repair the parts.

3.If the bearing of the electric fan is rusty and you can't shake your head, you can apply some lubricating oil to the bearing.

Hello dear, <>

The extension for you is as follows: Electric chain fan generally refers to electric fan. Electric fan, also known as fan and fan, is a household appliance that uses an electric motor to drive the fan blades to rotate to accelerate the circulation of air.

It is widely used in homes, classrooms, offices, shops, hospitals and hotels.

The electric fan does not shake its head for the following reasons:1. The rotor shaft is not concentric: the gap between the shaft and the bearing is too large, which is mainly due to the collision and extrusion of the fan blade, the dynamic balance is destroyed, causing jitter, and caused by long-term wear.

2. The fan is poorly maintained, and it runs without lubrication for a long time.

3. The end cover is deformed or the pressure plate is loose, and the exclusion method can open the rear end cover and take out the rotor. Check the gap between the tile and the shaft, the gap is too large to use. If the bearing is badly damaged and the rotor shaft is worn, it should be replaced with a new one.

As follows:

Poor shaded winding connection;

Stator winding break;

The two bearings of the electric lift fan are too tight;

The rotor and stator collide;

The rotor cage is broken or the cage is welded;

Damaged capacitors;

The power cord is disconnected.

The shaking movement is intact, and the fan does not turn. It shows that the fan motor is in good condition, and the fault lies in the mechanical transmission part of the blade, such as the fan blade fixing pin falling off, the fan blade is not locked, etc.

Note. Most electric fans use oil-impregnated bearings, which are usually powder metallurgy products. It is necessary to lubricate the oil holes tightly wrapped in the bearing. When the electric fan is working, the temperature of the motor increases, and the friction between the shaft and the bearing generates heat, which will gradually consume the lubricating oil.

If the lubricating oil is not properly replenished, the electric fan motor will not be able to maintain normal operation, and there will be a phenomenon that the speed will be reduced or even not rotated, and the motor will be burned out.

The reasons why the fan shakes its head intact but the fan does not rotate may be as follows:1Motor coil damage burning:

The coil of the motor is a key component that drives the fan, and if the coil is damaged, the fan cannot turn. 2.Motor shaft wear:

The motor shaft is the key component that supports the motor, and if the motor shaft is severely worn, it will cause the motor to fail to rotate. 3.Poor power cord contact:

If the power cord is not in good contact, it will cause the fan to not receive the power supply and will not be able to rotate. 4.Motor control board failure:

If the control board of the motor fails, the code will cause the fan to fail to receive the control signal and will not be able to rotate. 5.Fan blades stuck:

If the fan blades get stuck, the fan will not be able to rotate. 6.Motor overheat protection:

If the motor overheats, the protection mechanism is activated, causing the fan to not rotate. The above are the reasons why the fan shakes its head but the fan does not rotate, and can be troubled and repaired according to these reasons. If you can't solve the problem by yourself, it is recommended to contact professional maintenance personnel in time to repair it.

If the shaking action of the electric fan is intact, but the fan does not rotate, it is likely that there is too much dirt accumulated in Lin Wei, and you can clean it.

If there is a problem with the fan blade, you should check the internal wiring and ask the master to repair it if necessary.

The reason why the electric fan shakes its head will turn and the fan motor does not rotate varies according to the form of its shaking head transmission mechanism. There are two types of shaking head mechanism of electric fans:

1. The fan moving head transmission adopts worm gear reduction gearbox (commonly known as toothbox), and the rear axle of the fan motor is directly driven. In this case, the shaking action is intact, and the fan does not rotate. It shows that the fan motor is in good condition, and the fault lies in the mechanical transmission part of the blade, such as the fan blade fixing pin falling off, the fan blade is not locked, etc.

2. The fan moving head drive is driven by a separate synchronous motor. In this case, the head shaker and fan motor operate independently. When the shaking action is intact and the fan does not rotate, in addition to eliminating the above-mentioned mechanical transmission reasons, the fan motor part may also be damaged, such as the aging capacity of the starting capacitor is reduced, the fan motor anti-overheating thermistor is broken, the motor coil is burned, and so on.

Common Failures:

1. The fan shaft part should ensure that there is lubricating oil, otherwise the fan blade cannot be dragged by the motive on it. If you are at home, you can choose to turn off the power and then turn the fan blades, if the rotation is stiff, there is basically no lubricating oil.

2. Wear and tear caused by long-term use. If a fan is used for a long time, the motor will wear out, and the shaft sleeve of the motor will easily burn out after wearing.

3. The fan does not rotate due to overheating. There is a motor in the fan device, and there will be an overheating circuit breaker in the motor, if there is a short circuit in the coil winding, the heat will increase in a short time, and the motor will "strike" in this case.

4. The capacitance of the starting capacitor becomes smaller. When the fan is used for a long time, the capacitance capacity will decrease, resulting in the starting torque of the motor becoming smaller, and the load cannot be driven.

5. In many cases, the reason why the fan blades do not rotate is the problem of poor maintenance. If the blade is stiff after turning off the power, you should use some lubricating oil to drip into the shaft so that it can be lubricated so as not to affect the motor to drag the blade.

6. For the fan blades caused by wear and tear do not rotate, the easiest thing is to replace the parts, especially the shaft sleeve, which is easy to burn off after wear.

7. If the capacitor capacity becomes smaller and the fan does not rotate, you can remove the capacitor and replace it with a new capacitor of the same model, it is recommended to choose a capacitor that is 20% larger than the original capacitor of the side Yuanzhi, which will have a better rotation effect.

8. If the axial clearance of the shaft is too large, you can choose to adjust the gasket after disassembling the motor. However, remember that when installing the motor back, it should be noted that the rotor must be concentric with the bearing, and the lubricating screws should be slowly tightened diagonally, and finally the shaft of the rotating cavity should be knocked with a wooden handle to ensure that it is concentric.

9. If it is because of electrical faults, you can check the wiring lines, sometimes the wires are damaged, etc., and the problem can be repaired.