What Are The Uses Of Magnetic Powder Clutches?

The purpose of the magnetic powder clutch is:

1. Buffer start and stop: The cushioning effect of the smoothing characteristic and the constant torque characteristic at the time of connection, that is, the peak torque with stable acceleration and no impact.

2, continuous sliding, tension control

3, torque limiter

4, high-speed response

5, power absorption

6, positioning stop

7, for analog load

8, can be used in the torque transmission process of the cooperation and torque braking.

9. Suitable for constant tension control systems, such as: printing presses, slitting machines, laminating machines, coating machines, paper machines, wire drawing machines and cable winding machines, as well as processing equipment and textile machinery for sheet metal, strip and film. Wait.

10, can replace the ordinary clutch, used for fast clutching of machine tools, numerical control devices, computers, wide-line printers and various precision machinery.

11. As an overload device, it can be applied to mine lifting machinery, lifting machinery, cement, steel and other mechanical equipment, which can make the prime mover start at no load, gradually load, and improve equipment load capacity.

12, stepless speed regulation, coupled with sensors and control lines can achieve stepless speed regulation, especially for high speed speed fine adjustment and medium and small power speed control system.

13. In the overload protection, when the working system is accidental and the torque is overloaded, the clutch automatically slips, thus protecting the mechanical equipment and the motive power.

Magnetic powder clutch is generally used in printing machinery, paper machinery, bag making machinery, papermaking machinery, wire and cable machinery, winding machinery, wire machinery, bale bag machinery, textile machinery, weaving machinery, woodworking machinery, test equipment, simulation Precision tension control for load, various machines, general industrial equipment, and other general industrial machinery.

What are the precautions for using the magnetic powder clutch?
1. Use the magnetic powder clutch with a regular installation method (using the high-speed rotating side as the input side). If the mechanical structure has to be installed in the reverse direction of the shaft, be sure to use it below 1000R/MIN. If the input shaft and the output shaft are installed in reverse, the machine will idle for a long time, and the magnetic powder will be stirred, which will greatly shorten the service life of the magnetic powder clutch.

2, please pay attention to moisture. If the magnetic powder gets wet, the performance will become unstable, so be careful not to let oil or moisture invade the inside. In particular, when it is installed in a gear box, the oil will penetrate into the inside through the shaft, so it is completely sealed with a film.

3. Please pay attention to the surface temperature. The maximum surface temperature caused by continuous operation is 90 degrees or less during operation. When the value exceeds this value, the durability is greatly reduced. Be sure to use the above-mentioned limit temperature as the standard, and be sure to keep it within the allowable sliding work rate when using it.

The magnetic powder clutch is a combination of a transmission unit (input shaft) and a driven unit (output shaft). Filled with granular magnetic powder (approximately 40 microns in volume). The principle of the magnetic powder brake is similar to that of the magnetic powder clutch, except that the transmission unit is turned into a fixed unit.

Precautions during installation

a. Pay great attention to avoid installation deviations during installation

(1) The upper pressing gland should be carried out after the coupling is aligned. The bolts should be evenly supported to prevent the end face of the gland from being skewed. Check the points with a feeler gauge. The error is not more than 0.05 mm.

(2) Check the fit clearance (ie, concentricity) between the gland and the outer diameter of the shaft or bushing. The circumference should be uniform. Check the tolerance of each point with a feeler gauge to be no more than 0.01 mm.

b. The amount of spring compression should be carried out according to the regulations. It is not allowed to be too large or too small, and the required error is 2.00 mm. Over the assembly, the end face is pressed and the other end face is worn. Too small will cause insufficient specific pressure and will not seal.

c. After the moving ring is installed, it can be flexibly moved on the shaft. After the moving ring is pressed against the spring, it should be able to spring back automatically.

2. Precautions when disassembling

a. Care should be taken when disassembling the mechanical seal. Do not use the hand hammer and the flat shovel to avoid damage to the sealing components. A pair of wire hooks can be made, and the sealing device is pulled out in the direction of self-supporting profit and loss into the gap of the transmission seat. If the scale is not removed, it should be cleaned before disassembly.

b. If mechanical seals are used on both ends of the pump, take care of each other during assembly and disassembly to prevent loss.

c. For the mechanical seal that has been operated, if the gland is loose to move the seal, the static and dynamic ring parts must be replaced and should not be re-tightened for continued use. Because after the turbulence, the original trajectory of the friction pair will change, and the sealing of the contact surface will be easily damaged.