What is a permanent magnet coupler?

A permanent magnet coupler is also known as a magnetic coupling, permanent magnet transmission. It is mainly composed of copper rotor, permanent magnet rotor and controller. Generally speaking, the copper rotor is connected to the motor shaft, and the permanent magnet rotor is connected to the worker's shaft. There is an air gap (called an air gap) between the copper rotor and the permanent magnet rotor, and there is no mechanical connection for transmitting torque. In this way, a soft (magnetic) connection can be formed between the motor and the operator, thereby adjusting the air gap and realizing the change of the operator's shaft torque and speed. According to the different air gap adjustment methods, permanent magnet eddy current motors are divided into standard type, delay type, torque type, speed control type and other types.

What is the permanent magnet eddy current drive technology of the permanent magnet coupler?

Permanent magnet eddy current drive technology is not only the use of the same-sex magnet repulsion, heterosexual attraction principle, but the transmission technology, material technology, manufacturing technology integration. In the 21st century, manufacturing technology will not only continue to manufacture machines and equipment that operate under existing conditions, but also manufacture machinery and equipment that operate under different environments. The products manufactured in the 21st century are energy-saving and ecological environmental protection, and people-friendly green products. Permanent magnet eddy current drive technology is produced to adapt to this development trend. With the continuous emergence of new technologies, new technologies and new structures, a new stage of development of permanent magnet eddy current drive technology will be ushered in.

What are the technical advantages of permanent magnet couplers?

The main features of this technology are:

1. Energy saving effect: 25% to 66%

The maintenance work is less, the maintenance products are almost exempted, and the maintenance cost is very low.

3. Allows errors in large-scale installation alignment, which greatly simplifies the installation and debugging process.

4. Overload protection can improve the reliability of the whole system and completely eliminate the damage of overload to the system.

5. Improve the starting ability of the motor, reduce shock and vibration, and adjust the load distribution of multi-machine drive.

6. The speed control type allows stepless adjustment of the output speed when the motor speed is almost unchanged.

7. Long life, design life of 30 years. The life of components in the system can be extended.

8. Remote control and automatic control are easy, process control is accurate.

9. Simple structure, adapt to all kinds of harsh environment. It is environmentally friendly, does not produce pollutants, and does not produce harmonics. Small size and easy installation.

What is the comparison of permanent magnet couplers?

Compared with the frequency converter, its unique advantages, stability and comparability are higher than the frequency conversion, especially in the case of high power. In the load requirements, high-speed operation, more than 50 kW power can replace the inverter, to obtain considerable advantages. The adaptability of the harsh working environment and the performance that does not require maintenance are not available in the inverter. Compared with the frequency converter, it can eliminate the harmonic interference of the motor and improve the working efficiency of the motor. When the voltage drops, the inverter may not work normally, but the equipment is not affected. When the speed is low, the inverter reduces the motor speed, the cooling fan efficiency, and the motor may overheat. This device will not have this problem. The inverter has no problem with this device due to harmonic interference. Compared with the frequency converter, the vibration transmission between the motor and the load can be eliminated. Compared with the frequency converter, the maintenance and maintenance costs are lower. Compared with the frequency converter, it can effectively extend the life of the main components of the transmission system (such as bearings, seals, etc.). Allows 5mm shaft center deviation. The frequency converter is more demanding on the ambient temperature (the working temperature is between -10-40, when the temperature exceeds 50 and 40, the work is unstable)