In the noisy workshop of the factory, the motor is running at full capacity to provide power for production. But have you noticed that sometimes the motor will emit abnormal vibration and noise when it is running, and even shorten its life and frequently fail? In fact, these problems are likely closely related to the motor mounting base. A suitable mounting base plays a key role in the stable operation of the motor. It is like the foundation of a house and directly affects the performance of the motor. Next, let’s take a deep look at how to choose a suitable motor mounting base, solve common problems, and ensure efficient operation of the motor.
Common problems and causes of motor mounting bases
(I) Vibration and noise problems
Many customers have reported that excessive vibration and noise are generated when the motor is running, which not only affects the working environment, but may also interfere with the normal operation of other nearby equipment. For example, in a precision instrument manufacturing workshop, the vibration of the motor may cause the instrument to reduce its measurement accuracy. The root cause of this situation is often that the rigidity of the mounting base is insufficient, and the vibration generated when the motor is running cannot be effectively suppressed. When the motor rotates, the unbalanced force generated by it will be transmitted to the base through the shaft. If the rigidity of the base is poor, resonance will occur, thereby amplifying the vibration and noise.
(II) Installation stability issues
Some customers have found that motors are prone to displacement or loosening after installation, which poses a hidden danger to production safety. In some occasions where motors need to be frequently started and stopped, such as mining hoisting equipment, unstable motor installation may cause damage to connecting parts and even cause safety accidents. The main reason for this problem is that the connection method between the mounting base and the motor is unreasonable, or the design size of the base itself does not match the motor, making the motor unable to be firmly supported during operation.
(III) Motor life is affected
Premature wear and failure of the motor and a service life far below expectations are also key issues of concern to customers. Studies have shown that an inappropriate mounting base will cause the motor to bear additional stress and accelerate the wear of the internal parts of the motor. For example, when the flatness of the base is not enough, the motor will be in a twisted state after installation, and long-term operation will cause the motor bearing to wear more, thereby affecting the overall life of the motor.
Strategies for selecting high-quality mounting bases
(I) Select materials based on motor parameters
High-rigidity materials are preferred: For motors with high power and strong vibration during operation, cast iron, cast steel and other rigid materials should be selected as mounting bases. These materials can effectively resist the impact force generated by the operation of the motor and reduce vibration transmission. For example, in the installation of motors supporting large industrial fans, the cast iron base can ensure stable operation of the motor due to its excellent rigidity.
Consider material compatibility: It is also necessary to pay attention to the compatibility of the mounting base material and the motor housing material to avoid affecting the service life of the motor and base due to electrochemical corrosion. For example, when the motor housing is made of aluminum alloy, the mounting base should not be made of steel that is easy to react electrochemically with aluminum alloy. Stainless steel or materials with special anti-corrosion treatment can be selected.
(II) Reasonable design of connection structure
Optimize bolt connection: Use high-strength bolts and reasonably design the number and distribution of bolts to ensure that the motor and the base are tightly connected. For example, for small motors, bolts can be evenly arranged at the four corners of the base to enhance the connection stability; for large motors, in addition to increasing the number of bolts, embedded bolts can also be used to improve the connection strength.
Add shock absorbers: Installing shock absorbers or shock absorber springs between the motor and the base can effectively absorb the vibration energy generated by the operation of the motor and reduce the impact of vibration on the base and surrounding equipment. In the installation of motors for some medical equipment with high vibration requirements, the application of shock absorbers can significantly reduce vibration interference during equipment operation.
(III) Accurately match the installation dimensions
Strictly measure the motor dimensions: Before purchasing the installation base, you must accurately measure the installation hole spacing, motor dimensions and other parameters of the motor to ensure that the installation hole position and bearing surface dimensions of the base are accurately matched with the motor. For example, in a motor renovation project, if the new motor dimensions are not carefully measured and the old base is used, there is a high probability of installation mismatch.
Consider the installation space limitations: At the same time, the base with the appropriate dimensions should be selected in combination with the actual installation space of the motor. In places with small spaces, a compact installation base can be selected, which can not only meet the motor installation requirements, but also save space and facilitate later maintenance.
The long-term value and implementation steps of correctly selecting the installation base
(I) Significant benefits in many aspects
Improve motor performance and life: A suitable installation base can effectively reduce motor vibration and stress, reduce the wear of internal parts of the motor, thereby extending the service life of the motor and reducing maintenance and replacement costs.
Ensure safe production: A stable installation base can prevent the motor from shifting or loosening during operation, avoid safety accidents caused by motor failure, provide strong protection for enterprise safety production, and reduce potential economic losses and casualties.
(II) Key points for phased implementation
Motor parameter and environment survey: Comprehensively measure various parameters of the motor, including power, speed, installation size, etc., and understand the actual installation environment of the motor, such as space size, peripheral equipment, etc., to provide a basis for selecting a suitable base.
Screen and compare base products: According to the survey results, select the installation base products that meet the motor parameters and installation environment requirements in the market, compare the materials, structural design, price and other factors of different products, and select the most cost-effective products.
Installation, commissioning and inspection: When installing the base, strictly follow the installation instructions to ensure installation accuracy. After the installation is completed, debug the motor and check the vibration, noise and other conditions during the operation of the motor. If there are any problems, adjust them in time.
Regular maintenance and evaluation: During the operation of the motor, regularly inspect and maintain the installation base to check whether the connection parts are loose and whether the base is deformed. Evaluate the applicability of the base according to the actual use effect, and replace or improve it if necessary.
The selection of the motor mounting base is directly related to the running stability, performance and service life of the motor. By paying attention to common problems, starting from material selection, connection structure design and size matching, you can select a suitable mounting base. In order to ensure efficient and stable operation of the motor, it is recommended that you take immediate action to re-examine the rationality of the motor mounting base and make timely adjustments and optimizations.