Precautions For The Installation And Use Of Magnetic Powder Clutches

The working principle of the magnetic particle clutch is that when the coil is not energized, the magnetic particles in the working gap and the powder storage cavity are pressed to the inner wall of the active rotor under the action of centrifugal force, so the main and driven rotors are in a state of detachment, and the driven rotor does not rotate.
It can transmit a certain torque under the condition that it has nothing to do with the slip difference, and has the advantages of fast response, simple structure, no pollution, no noise, no impact vibration, energy saving and so on. It is a multi-purpose automatic control element with superior performance.

Assembly of magnetic particle clutch:
1) The assembly is all inlaid by inlay, please do not impact and exert excessive external force during the assembly operation.
2) Please use the magnetic particle clutch with the high-speed rotating end as the input terminal in the normal installation state.
3) Use arrows to indicate the input and output in the signage) In addition, please use the shaft of the clutch and brake horizontally.
4) When attaching the pulley, pay attention to the belt tension and do not apply the initial tension beyond the rated rate.
5) The excitation coil has no voltage polarity (+, -).

Precautions for the installation and use of magnetic particle clutch:
1) The magnetic powder clutch can be coaxial installation, can also be installed on the axis, the axial direction must be fixed, the driving part and the driven part are not allowed to have axial channeling, when the sub-shaft is installed, the coaxiality between the active part and the driven part of the shaft should not be greater than 0.lmm.
2) The installation of the magnetic particle clutch should be kept away from the fuel tank, water tank or the place where the air is too humid, or take effective measures to avoid the performance of the magnetic particle from being affected by moisture.
3) The newly installed magnetic particle clutch, in order to make the magnetic powder uniform and stable performance, should be domesticated and operated first.
4) If the magnetic particle clutch is not used temporarily, it should be stored in a dry warehouse with air circulation, and should not be stored in the same room with corrosive materials such as acid and alkali.

Causes and treatment methods of magnetic particle clutch "stuck":
Cause:
1) Due to the transportation process or the placement time is too long, the magnetic powder filled between the two groups of units is scattered on one side, and the excitation is not done before starting, resulting in stuck.
2) Due to the low manufacturing accuracy of the product, the concentricity of the rotor is not enough, resulting in uneven output torque or stuck.
3) Excessive encapsulation of magnetic particles during the production process.
4) Caused by the use of inferior magnetic particles.
Solution:
1) Before the formal operation or after the device is moved, it must be operated evenly before the formal operation.
2) When choosing to buy a magnetic particle clutch, choose a product with guaranteed quality.

Application of magnetic particle clutch in different industry fields:
Nowadays, there are magnetic particle clutches on many machines, which are generally used in printing machinery, papermaking machinery, papermaking machinery, bag-making machinery, papermaking machinery, wire and cable machinery, winding machinery, wire rod machinery, bag machinery, textile machinery, weaving and maintenance machinery, woodworking machinery, test equipment, simulated load, precision tension control of various machinery, general industrial equipment, and other general industrial machinery.
*Advantages of magnetic particle clutch application on printing press:
1) In the process of clutch engagement, it is easy to achieve a smooth increase in torque, so the clutch has a good smooth engagement performance.
2) It can work for a long time.
3) There is no need to adjust during use.
The magnetic particle clutch is used in the printing press to close and disengage frequently, with fast response speed and high frequency, which can reach 40-60 times per minute, and can be widely used in fast working conditions and high frequency occasions. The power amplification factor is high, and a large amount of power transmission can be controlled with a small excitation current, which is easy to realize automatic control.
* Application of magnetic particle clutch in slitting machine:
Because the slitting machine is a machine that slits the coiled materials (paper, steel strip, film, etc.) according to the set length and width, in the process of slitting, the speed and tension of the coiled raw materials should be balanced and stable, and the unwinding of these coiled materials is applicable to the magnetic particle clutch. Through the working characteristics of the magnetic particle clutch, the balanced and stable feeding material is realized, continuous slicing, high-precision slitting, and the width and length are unified, so as to improve the quality and efficiency of the entire slitting work.
In the selection of magnetic powder clutch used in the slitting machine, according to the coil diameter and weight of the coil material, the magnetic particle clutch of the slitting machine with different specifications of torque (1~400Nm) is selected, and there are two series of hollow shaft magnetic particle clutch type and protruding shaft magnetic particle clutch. In the installation of magnetic powder clutch and slitting machine, it is necessary to pay attention to distinguish the input shaft and output shaft first, and not to install it in reverse. if the slitter has to be installed in reverse from the output and input shafts, be sure to use it at 1000r/min or less. Because it is installed in the opposite direction, it will cause the equipment to idle for a long time, and the magnetic particle will be stirred, which will greatly shorten its service life.

How to choose a magnetic clutch：
You need to be clear when buying a magnetic clutch
1) How much torque is needed in your industry.
2) What is the interface of the machine.
3) The magnetic powder clutch is divided into hollow shaft and outstretched shaft, generally the volume of hollow shaft type is smaller, and the required magnetic power is smaller than that of extent shaft type. There is a small gap between the magnetic coil and the transmission unit of the extendable magnetic particle clutch, so a large magnetic force is required. The magnetic coil of the hollow shaft magnetic particle clutch is hidden in the transmission assembly, so it needs to pass through the slip ring brush flux coil.
If you still don't know how to choose, you can consult PRE China factory.

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