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The stability and improvement of motor performance is due to the level of design on the one hand, and the realization of product design through manufacturing process is also very important on the other hand. Especially in the case of tight inner cavity of some motors, necessary measures are needed to ensure the basic conditions of electrical insulation and ventilation and heat dissipation during the operation of the motor.

The following factors should be considered when selecting the fixed end of the motor bearing support (referred to as the motor fixed end): (1) the precision control requirements of the driven equipment; (2) the nature of the load driven by the motor; (3) the bearing or bearing combination must be able to withstand a certain axial force. Based on the above three design factors, deep groove ball bearings are more often used as the first choice for the motor fixed end bearing in small and medium-sized motors.

With the continuous improvement of industrial production requirements for crane speed regulation performance, the common traditional crane speed regulation methods such as winding rotor asynchronous motor rotor series resistance speed regulation, thyristor stator voltage regulation speed regulation and cascade speed regulation have the following common disadvantages: the winding rotor asynchronous motor has collector rings and brushes, which require regular maintenance. Failures caused by collector rings and brushes are more common. In addition, the use of a large number of relays and contactors results in a large amount of on-site maintenance, a high failure rate of the speed regulation system, and poor comprehensive technical indicators of the speed regulation system, which can no longer meet the special requirements of industrial production.

The Chinese language is very interesting. The same word can have different effects when used in different situations. For example, the word "shui bao" means being irresponsible and abandoning others. It can also be extended to mean that a couple quarrels and breaks up due to disagreements. This word is more often used in motors.

Lubrication is a necessary condition for the normal operation of motor bearings. Rolling bearings are grease-lubricated and are the most widely used bearings in motor products. Rolling bearings are classified into open and sealed bearings. Sealed bearings are filled with grease when leaving the factory and do not need to be filled again when assembling the motor. The maintenance of the bearings can be replaced according to the service life of the motor or bearing. For most motors, open bearings are used, that is, the motor manufacturer fills the bearings with appropriate grease according to different operating conditions.

Most motor applications will be equipped with overload holding devices, that is, when the motor current exceeds the set value due to overload, the holding instruction will be executed to implement protection.

When the motor is mechanically stuck, or there are electrical faults such as ground, phase-to-phase, and turn-to-turn, the protection instruction will also be effective due to the increase of current. However, when the current has not increased to the protection setting value, the protection device will not execute the corresponding instruction.

     China's traditional motor industry is the motor industry. After years of research and innovation, Xima Motor has developed into a high-quality motor company in China. SIMO Motor integrates motor design, manufacturing and sales in terms of quality. SIMO Electric Company, Xima Electric's products have won a reputation for quality and are exported to countries around the world. SIMO Motor is currently a high-quality motor among China's motor products.

How to improve motor efficiency?

This efficiency of the motor is affected by a small amount of losses, including resistance losses, mechanical losses caused by friction, losses caused by the dissipation of magnetic energy in the core, and different losses depending on the type of material used. To make the motor more efficient, we must reduce the losses in the motor. Here are some methods or tips that can be adopted to improve the efficiency coefficient of the motor.

Due to the continuous development of insulation technology, the design of motors requires both increased output and reduced volume, making the thermal capacity of new motors smaller and smaller, and the overload capacity weaker and weaker; and due to the improvement of production automation, motors are required to run frequently in various modes such as frequent starting, braking, forward and reverse rotation, and variable load, which puts higher requirements on motor protection devices. In addition, motors have a wider range of applications and often work in extremely harsh environments, such as humid, high temperature, dusty, corrosive, etc. Coupled with the irregularities in motor repair and the omissions in equipment management. All of these have caused today's motors to be more easily damaged than in the past.

The underground environment of coal mines is complex. Not only are various production materials piled up, but there may also be gas. If arcs and sparks are generated during the operation of electrical equipment for various reasons, fires and explosions may occur. A protective device called a flameproof casing is specifically used to protect electrical components and the entire electrical equipment. After installing this flameproof casing, the arcs, sparks and explosions generated by electrical components or equipment will be isolated inside and will not affect the external environment and surrounding equipment. This method has a high application rate in coal mine underground motor equipment and high and low voltage switches, and the effect is relatively good.