Can the maximum frequency of a magnetic particle brake reach 50 times per minute? 10

In fact, it can be played, Tailing magnetic powder brake echoes fast, the power amplification is high, and a small excitation current can be used to control a large amount of transmission power, the frequency is high, it can reach 40-60 times per minute, the linearity is good, the torque is proportional to the excitation current in the appropriate and universal range, and it is used for fast operation and high-frequency places, and the output torque is stable, because the size of the torque only depends on the size of the excitation current.

Magnetic particle brakes are based on electromagnetic principles and the use of magnetic particles to transmit torque. It has the characteristics that the excitation current and the transmission torque are basically linear. It can transmit a certain torque under the condition that it has nothing to do with the slip, and has the advantages of fast response, simple structure, no pollution, no noise, no impact vibration and energy saving.

It is a multi-purpose automatic control element with superior performance. It has been widely used in papermaking, printing, plastics, rubber, textile, printing and dyeing, wire and cable, metallurgy, tablet press and other related winding processing industries in unwinding and winding tension control. Magnetic particle brakes are also often used for dynamometer loading and braking of transmission machinery.

Magnetic particle brakes and magnetic clutches are often used in pairs.

Tianji transmission magnetic powder brake use.

1. Buffer start and stop: use the smooth characteristics and constant torque characteristics of the connection to achieve buffer start and stop.

2. For continuous sliding and tension control.

3. Torque limiter.

4. High-speed response.

5. For power absorption.

6. Stop positioning.

7. For simulated loads.

Features of Tianji transmission magnetic powder brake.

1. It can be easily controlled in a wide range.

2. It can achieve continuous sliding operation.

3. You can get a stable torque.

4. No chirps. The sluggish slippage of the operating surface occurs due to friction, but it does not occur here, and there is no connection sound, so the operation is quite quiet.

5. The heat capacity is very large. Thanks to the use of magnetic particles with excellent heat resistance and the use of an ideal cooling method, it can be used with peace of mind even in the case of severe continuous sliding operation.

6. It can achieve a smooth continuous and driving state. Since the coefficient of static friction and the coefficient of dynamic friction are almost the same, it will not be generated when it is fully connected, and it can be accelerated and decelerated according to the load.

Before the first use of the magnetic particle brake, the rated current of 30% is turned on, and the power is turned off and then powered on after 10 seconds of operation, and repeated several times to ensure the fluidity and uniform distribution of the magnetic particle.

1. Please pay attention to moisture. If the magnetic particle is wet, the performance will become unstable, so be careful not to let oil or moisture get inside. Especially when installed in a gearbox, the oil enters through the shaft, so it is completely sealed with a film.

2. Pay attention to the surface temperature. The maximum surface temperature caused by continuous operation is 90 degrees Celsius or less during operation, and if this value is exceeded, the durability is greatly reduced. Be sure to use the above limit temperature as the standard, and be sure to keep it within the allowable sliding rate when using.

1.Due to the transportation process or the long storage time, the magnetic powder filled between the two groups of units is scattered on one side, and the magnetic particle is not excited 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 jamming.

3.Caused by excessive encapsulation of magnetic particles during the production process.

4.Caused by the use of inferior magnetic particles. 1.

Before the official operation or after the device is moved, it must be operated evenly before the official operation. In this way, a smooth torque can be generated, and the uniform operation mode is as follows: in the non-excitation state, the driving side rotates at a high speed (below 1800rpm) as much as possible for about 1 minute, and the excitation current is set at the rated 1 4-1 5, on the one hand, the drive side is rotated, on the other hand, it is opened in 5 seconds, closed in 10 seconds, and the excitation is excited about 20 times.

2.When choosing to buy a magnetic particle clutch magnetic particle brake, it is best to choose a product with the highest quality.

The magnetic powder brake of Tianji transmission has a normal service life of 5000 to 8000 hours.

Usually when the torque is reduced to 30% of the initial value, the life of the magnetic particle has come to an end. When the torque drops, the control current can be increased, and when the increase control current cannot meet the output torque, it is necessary to consider replacing the magnetic particle.

The service life of magnetic powder has a great relationship with its use conditions and environment, and the normal service life is generally 5000 to 8000 hours. If the load is too high, the operating temperature is too high (normal can not exceed 90), the magnetic particle is damp, the frequency of use is too high, etc., the service life of the magnetic particle will be shortened.

The models of POB electromagnetic magnetic particle brakes are: POB micro electromagnetic magnetic particle brake POB micro electromagnetic magnetic particle clutch use Buffer start, stop use The cushioning effect of the smooth characteristics and constant torque characteristics during the connection, that is, the peak torque with a certain acceleration and no impact. For continuous sliding and tension control For torque limiters For high-speed response For power absorption For positioning and stopping For simulated loads Features (1) Wide range and high-precision torque control The control range of torque is very wide, and the control accuracy is high, and the correct ratio of torque and excitation current is conveyed, and high-precision control is realized.

2) Superior durability and long life The use of heat-resistant, wear-resistant, oxidation-resistant, corrosion-resistant superalloy magnetic powder, long life. (3) Stable torque characteristics of excellent stability The magnetic characteristics of magnetic powder are good, and the binding force between powder particles is stable, so the sliding torque is very stable, and it has no relationship with the relative number of revolutions, and can always maintain a certain torque. (4) Continuous sliding operation and use Excellent heat dissipation effect, eagerly using a uniform cooling structure of thermal deformation, coupled with the high heat resistance of the magnetic particle, so the allowable connection and braking power and sliding power are large, and can slide smoothly without causing vibration.

5) Smooth connection, no impact When connecting, the impact is very small, and it can start and stop smoothly without impact. Moreover, the resistance torque is small, so it will not cause useless calorific value. (6) Suitable for high-frequency operation and over-cool use Agile response and special heat dissipation structure, suitable for high-frequency operation (7) Lightweight, maintenance-free, long life Simple and lightweight shape, using high-temperature resistant coils and special grease bearings, and wear-resistant special treatment for armatures that are prone to wear and tear to prolong the service life.

If you don't know the amount of magnetic powder added to the clutch of the magnetic particle brake, you can consult the customer service of "Taiwan Sky Machine Transmission", the amount of magnetic powder added to each model and specification is different, and there is a rated value (mesh). The amount of magnetic powder for magnetic powder brake, clutch and magnetic powder can be referred to the product catalog or instruction manual.

The size of the magnetic particle brake model determines the amount of magnetic powder to be added (the unit of potato chaos is g). Of course, how many magnetic particles should be added to the magnetic particle brake? Take tj-pod as an example, which is described in detail as follows:

The weight of the magnetic agglomerate powder is 10 grams (g).

The weight of the magnetic particle is 20 grams (g).

The weight of the magnetic particle is 33 grams (g).

The weight of the magnetic particle of TJ-POD-5KG is 60 grams (g), the weight of the magnetic powder of TJ-POD-10KG is 140 grams (g), the weight of the magnetic powder of TJ-POD-20KG is 225 grams (g), the weight of the magnetic powder of TJ-POD-40KG is. 370 grams (g).

When the magnetic particle clutch and magnetic particle brake are used in continuous sliding use in rewinding and unwinding, the life of the magnetic particle will vary due to the use conditions and relative sliding speed, such as the surface temperature of the magnetic particle brake and the magnetic particle clutch is too high, the load is too heavy, the moisture is wet, and the oil and moisture invade the interior. However, when it is usually used under the allowable continuous slip power, the magnetic particle life of the magnetic particle brake clutch when the torque is reduced at the rated current can reach about 5000 to 8000 hours. For example, when the sun is used under the rated torque, because the magnetic particle brake and magnetic particle clutch can be continuously used in the gear, it can have a long service life.

In addition, even with the same slip power, when the sliding speed and relative speed are continuously high, the life time of the magnetic particle will be shortened, so it is recommended to set the relative speed as low as possible. Generally speaking, compared with the allowable continuous slip power, if it can be used under better conditions, it can also prolong the service life of the magnetic particle. For example:

When used under the condition of 50% allowable continuous slip power, the service life of the magnetic particle clutch will be about twice as long.

Tailing magnetic powder brake uses magnetic powder to transmit torque, and the quality of magnetic powder determines the quality of magnetic particle brake. Magnetic powder has the advantages of high permeability, high Curie point, high magnetic induction strength, and large transmission torque.