Bearing is a key component to support the normal operation of the electric motor.
In a sense, the effect of bearing operation directly determines the service life and quality of the electric motors.
Bearing grease is an essential lubricant to ensure the smooth operation of the bearing.
However, if the amount of grease is too little or too much, it can do harm to the bearing. Insufficient amount of excess grease can cause wear and damage to the electric motor bearings, while too much grease can cause overheating and vibration during the induction motor operation.
In addition to the quality of the bearings themselves, lubrication is a very critical element in determining the effectiveness of bearing failure operation, including the entire life cycle of the industrial motor from manufacturing, storage and use, lubrication is a critical control item.
Therefore, it is important to use the appropriate amount of bearing grease and to regularly inspect and maintain the bearing cap to ensure they are properly lubricated.
This will help to prevent premature wear and damage to the AC motor, and extend its overall service life.
For the bearing grease, in addition to the performance of the grease fittings and the applicability of the working conditions of the induction motor, and the relationship with the bearing parts, a very important factor is the control of the amount of grease during the operation of the bearing, the amount of grease, as long as it can ensure the normal operation of the bearing can be, if overfilled, including grease discharge is not smooth, will lead to the accumulation of too much grease in the bearing.
So that in the electric motor operation will Because of friction and heat, resulting in grease degradation failure loss, and then make the motor bearings in a non-lubricated state of operation, in a very short period of time, the bearing will appear to fall apart and hold the shaft of serious consequences.
Regular maintenance and inspection of bearing shields should include monitoring the amount of bearing grease and ensuring it is not too little or too much.
This will help prevent premature wear and damage to the motor, as well as overheating and vibration during operation.
Proper lubrication is critical for the effectiveness and longevity of bearings and should be carefully controlled throughout the entire life cycle of the electric motor.
It is proved that the bearing system is the key control element of the motor product, how to determine the relationship between the parts, what kind of grease to choose, how to ensure the benign circulation of grease during the bearing operation, how to ensure the metabolism of grease during the bearing operation are key points that cannot be ignored.
In summary, proper lubrication of bearings is critical for the smooth operation and longevity of the motor.
Both insufficient and excessive amount of bearing grease can cause damage to the bearing and affect the overall performance of the Asynchronous motor.
Regular maintenance and inspection of bearings should be conducted to monitor the amount of bearing grease and ensure it is not too little or too much. By doing so, premature wear and damage to the AC motor can be prevented and the overall service life of the industrial motor can be extended.
Electric Motor knowledge expansion
common failures in the operation of the fan
Cement industry fan working medium often contains a certain amount of homogeneous particles of different sizes and shapes, such as the dust removal system of the induced draft fan, pneumatic conveying blower.
As these fans are working in the dusty airflow, dust particles in the airflow both to produce wear and tear on the fan, but also in the fan blades attached to accumulate ash, and this wear and ash are uneven.
Thus, the fan rotor balance is damaged, causing fan vibration, shorten the fan life, serious can make the fan can not work properly.
Especially the fan blade wear is the most serious, it not only destroys the flow characteristics of the fan, and easy to cause blade fracture and flying car and other major accidents.
Transmission parts wear is also a common problem of fans, including a variety of shafts, rollers, reducers, most motors, pumps and other bearing bits, bearing seats, keyways and threads and other parts, the traditional welding machine processing method is easy to cause material damage, resulting in component deformation or fracture, with greater limitations; brush plating and spraying and then machining methods often need to be outsourced, not only long repair cycle, high cost, and because the repair.
The material is still metal material, can not fundamentally solve the cause of wear and tear (metal impact resistance and poor yield).
More many parts can only be scrapped and replaced, greatly increasing the production costs and inventory of spare parts, so that the enterprise good resource advantage was idle and wasted.
- Solutions to common failures in the operation of the fan
To solve the common problem of wear and tear on transmission parts, a new method called laser cladding technology has been developed.
This technology uses a high-energy laser beam to melt the surface of the worn part and apply a layer of wear-resistant material to the surface.
The material is then fused with the base metal to form a strong bond, effectively repairing the worn part without causing deformation or material damage.
This method has the advantages of high repair efficiency, low repair cost, and improved component performance and durability.
To prevent the accumulation of dust and ash on the blades of fans working in dusty environments, the use of a protective coating on the blade surface has been proven to be effective.
This coating can reduce the adhesion of dust particles to the blade surface and reduce wear and tear caused by dust accumulation.
In addition, the use of ceramic bearings and seals can also effectively reduce wear and tear in dusty environments.
By adopting these solutions, the service life of fans can be greatly extended and the overall performance and efficiency of the three phase motor can be improved.
2 vibration failure of electric motors
The fan and the electric motor are linked by a coupling to transfer motion and torque.
Misalignment is the most common fault of the fan, and 60% of fan failures are related to misalignment.
The misalignment fault of the fan is the degree of tilt or offset between the axis line and the bearing centerline of the two rotors of the fan and the motor.
The misalignment of the fan rotor can be divided into coupling misalignment and bearing misalignment.
After the fan rotor system produces misalignment fault, it will produce a series of dynamic effects unfavorable to the operation of the equipment during the rotation process, causing the deflection of the coupling, the wear of the bearing, the oil film steady state and the deflection of the shaft, etc.
It not only makes the mutual position of the journal and bearing installation of the rotor and the working state of the bearing change, but also reduces the inherent frequency of the shaft system at the same time, so that the additional force on the rotor and the bearing leads to the fan .
The abnormal vibration and early damage of the double shielded bearings , the harm is great.
For fan misalignment failure, you can use the laser alignment instrument to solve, convenient and fast.
laser alignment technology
Laser alignment technology is a new method of alignment that uses a laser to measure the relative position and alignment of the fan and grease lubricated motors.
This method has the advantages of high accuracy, high efficiency, and easy operation, and can effectively solve the problem of fan misalignment.
By using laser alignment technology, the service life of the fan can be extended and the overall performance and efficiency of the electric motor can be improved.
In addition, regular maintenance and inspection of fans is also critical to preventing common failures such as transmission parts wear and dust accumulation on fan blades.
By adopting these solutions and ensuring proper lubrication of bearings, the service life of motors can be greatly extended and the overall performance and efficiency of the Squirrel cage motor can be improved.
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