BDKME Permanent Magnet Motor

With years of experience in permanent magnet motor design and key process technology in the global permanent magnet motor industry, BDKME brand permanent magnet motors have mastered most of the high-end, precision and new permanent magnet motor technologies and products.

BDKME has carried out a lot of research and development work and co-produced with German SCHORCH in the aspects of high efficiency, quietness, and high performance of permanent magnet motors for industrial servos. Therefore, BDKME has great technical advantages. The resulting motor equipment has competitive advantages such as high control accuracy, low power consumption, long life, low cost, small size, and easy maintenance, and it is also at the forefront of the world in terms of technology, occupying a part of the permanent magnet motor market.

The BDKME brand permanent magnet frequency conversion direct drive system is developed and produced by BDKME and German SCHORCH. It is a drive product with permanent magnet frequency conversion as the core technology. It can be directly connected to drive large-scale equipment such as mine hoisting equipment. It has simple structure, compact layout, no tooth direct connection, high efficiency and energy saving, large starting torque, high control accuracy, high reliability, strong overload capacity, soft start, soft stop and soft impact. It has the advantages of small size, convenient installation and maintenance-free system. It is mainly suitable for all kinds of grinding machines with edge drive and center drive. Currently widely used in open pit mines, electric power, coal, metallurgy, ports, and transportation and other fields.

 

 

The advantages of permanent magnet synchronous motor in high-efficiency intelligent mine and heavy industry electric drive are analyzed as follows:

The rotor is a permanent magnet, no excitation is required, the loss is small, the high-efficiency working area is wide, and it is more energy-saving.

The low-speed load capacity is strong, the power factor is much higher than that of the asynchronous motor, and the system efficiency is high.

High power density, suitable for occasions where volume and mass are limited.

Wide speed regulation range and small torque ripple.

It can realize low-speed direct connection, simplify the mechanical device, and improve the overall efficiency and reliability.

Permanent magnet synchronous motors have broad application prospects in the fields of mine hoists, slag vertical mills, ball mills, fans, and drainage pumps. The low-speed direct connection transformation of belt conveyors or scraper conveyors using permanent magnet synchronous motors is a current hot spot.

 

 

Permanent magnet motors are used in mines and power plants

According to the characteristics of permanent magnet motors, combined with the development trend of electric drive in mines and power plants, permanent magnet synchronous motors are widely used in mine hoists, slag vertical mills, ball mills, fans and other equipment.

Low-speed direct-connected high-power mine electric drive

The low-speed and high-torque direct drive motor eliminates the cumbersome deceleration mechanism and avoids various adverse effects such as complex structure, large moment of inertia, reduced efficiency, increased noise, lubricant leakage, transmission clearance, wear, and frequent maintenance caused by the deceleration mechanism. . Therefore, the direct drive motor has received great attention as a substitute for the traditional motor acceleration and deceleration system, and has been applied to a certain extent. Permanent magnet synchronous motor has the advantage of wide high-efficiency area, and it has obvious advantages over other motors in low-speed direct connection occasions.

Mining new energy auxiliary transportation equipment

The advantage of permanent magnet synchronous motor in the application of new energy auxiliary transportation equipment for mining (such as explosion-proof lithium-ion battery trackless rubber-wheeled vehicle, etc.) is that the motor has high efficiency and can improve the utilization rate of new energy. The permanent magnet synchronous motor has a high power density, which is conducive to reducing the weight of new energy auxiliary transportation equipment and improving the overall efficiency of the system. The permanent magnet synchronous motor has a wide speed regulation range, which can realize direct drive, reduce the complexity of the mechanical device, and improve the overall efficiency.

 

 

The application of direct coupled permanent magnet motor in belt conveying system

 

 

The advantages of the permanent magnet synchronous motor low-speed direct connection scheme in the belt conveyor system

(1) Safe and reliable

◆ No deceleration system, the transmission chain is shortened, the system runs more smoothly, the vibration is smaller, the noise is lower, and the reliability is higher;

◆ No gear transmission, the loss caused by mechanical wear has been effectively controlled, and the service life is longer;

◆ Frequency conversion start, no impact, effectively solve the damage caused by the dynamic tension wave of the belt conveyor to the belt and equipment;

◆ The permanent magnet motor has good controllability, which can better solve the multi-drive power balance problem of long-distance and large-capacity belt conveyors;

◆ The inverter is matched with reactors and filter devices, which will not pollute the power grid and interfere with the normal operation of other equipment;

◆ The number of parts is reduced and the installation is more convenient.

◆Have zero-speed full-torque output characteristics, which can realize heavy-load starting; have low-speed belt inspection function; realize the "S" curve start and stop of the belt conveyor, and can adjust the belt running speed according to the load; "

(2) Maintenance-free

◆ No deceleration system and auxiliary hydraulic system and cooling system, the maintenance difficulty is reduced, the maintenance volume is reduced, and the maintenance cost is reduced;

◆ The maintenance cycle is prolonged, the downtime is reduced, the system can operate continuously and reliably, and the production efficiency is improved.

(3) High efficiency and energy saving

◆Without deceleration system, the mechanical transmission efficiency is close to 100%;

◆The rotor of the motor is a permanent magnet, no excitation is required, the loss is small, and the efficiency is high;

◆There is no cooling and hydraulic system attached to the deceleration system, and the attached equipment consumes less electricity.

◆ The high efficiency area is wide, and the permanent magnet motor has high efficiency within the 120% rated load range. In terms of efficiency, not only the rated point has been improved, but also under the condition of low load and low speed, the advantage is even more obvious.

 

Performance advantage comparison