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What is the scope of application of permanent magnet couplers?

What is the scope of application of permanent magnet couplers?

Scope of application: Permanent magnet couplers are mainly used for various types of fans, pumps, material conveyors, bucket elevators, ball mills, winches, crushers, mixers, winches and other mechanical equipment.

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What is a permanent magnet coupler?

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.

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What are the technical advantages of permanent magnet couplers?

What are the technical advantages of permanent magnet couplers?

The permanent magnet coupler is mainly composed of copper rotor, permanent magnet rotor and controller. Generally, the copper rotor is connected with the motor shaft, and the permanent magnet rotor is connected with the working machine 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 to transmit torque. In this way, a soft (magnetic) connection is formed between the motor and the working machine, and the shaft torque and speed of the working machine can be changed by adjusting the air gap. Due to the different air gap adjustment methods, the permanent magnet eddy current transmission device can be divided into standard type, delay type, limited moment type and speed control type and other different types.

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What does a permanent magnet coupler look like? Let's get to know

What does a permanent magnet coupler look like? Let's get to know

To isolate the motor and other electrical components from the downhole environment, torque is transferred from the motor to the hydraulic section through a permanent magnet coupling. The pending patent for the upper wing magnetic coupling can work under large gaps and transmit very high torque from the very low speed of the pump (100 r/min) to the very high speed of the compressor (over 500 r/min).

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Choose a permanent magnet coupler, these "pits" must be avoided!

Choose a permanent magnet coupler, these "pits" must be avoided!

After entering the summer, this is also the peak period of the cement plant maintenance equipment. A number of cement enterprises commissioned cement internal reference to purchase a variety of permanent magnet coupler spare parts and other materials, the replacement of permanent magnet coupler demand increased significantly. As we all know, in order to protect the normal operation of cement equipment, couplers are often installed in the equipment transmission system to achieve flexible starting and reduce the impact of starting equipment. However, in actual operation, the traditional permanent magnet coupler is prone to oil leakage and other problems have brought a lot of distress to the cement plant.

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What are the common permanent magnet couplers in the market today?

What are the common permanent magnet couplers in the market today?

Synchronous permanent magnet coupler: The appearance is smooth, the surface is close to 0, easy to install, and does not affect peripheral equipment. The magnets are sealed inside the inner and outer rotors for simple and safe installation. Adapt to wet, dust and other harsh, harsh working environment.

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Some Knowledge Points of Permanent Magnet Coupler

Some Knowledge Points of Permanent Magnet Coupler

According to Lenz's law, when the conductor of the permanent magnet coupler moves relatively in a magnetic field, the conductor cuts the magnetic induction line, and an induced eddy current is generated in the conductor, which in turn generates an induced magnetic field, and the two interact to generate torque. Depending on the size of the coupling area, an appropriate torque is generated. The greater the coupling area, the greater the torque.

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What are the characteristics of permanent magnet coupler

What are the characteristics of permanent magnet coupler

Permanent magnet couplers also have their limitations. According to the classification, different types should be selected to adapt to different working conditions. Can not completely replace the frequency converter, hydraulic coupling and other products (in some special occasions), but also can not replace the reducer, gearbox. There is no energy saving effect on the load of constant torque and constant power. The energy-saving effect of the speed-regulating permanent magnet coupler is only reflected in the equipment with centrifugal load, which is determined by the characteristics of the centrifugal equipment itself, not the characteristics of the permanent magnet coupler itself. Other speed control devices (frequency converter, hydraulic coupling, etc. also have energy saving effect.

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