Magnetic particle brake application, magnetic particle brake working principle
Magnetic powder brake and magnetic particle clutch is a kind of automatic control device with good performance. It uses magnetic powder as the working medium, the excitation current as the control means, to control the braking torque or transfer torque to. The output torque and excitation current showed a good linear relationship, and with speed or unrelated to the slip, and has the response speed, simple structure and other advantages. Tension automatic control system. Magnetic powder brake, magnetic particle clutch and automatic tension control instrument and tension detection sensor, can be composed of automatic closed-loop tension control system, widely used in printing, packaging, paper and paper products processing, textile, glass fiber, wire and cable rubber, metal foil tape and other equipment. Power test system for torque and rotational speed. Magnetic particle brake, magnetic particle clutch and torque speed sensor, torque and speed power meter, can form a complete set of torque and speed power testing system, widely used in power machinery, transmission machinery input, output torque, speed, power, efficiency of the dynamic and static detection of magnetic powder clutch is also used for buffer starting, overload protection, speed control, etc..
Working principle of magnetic particle brake
Magnetic powder brake is based on the electromagnetic principle and the use of magnetic particle transfer torque. With the excitation current and torque transfer basic characteristic of linear relationship. In the case of the same slip is not related to the transmission of a certain torque, with fast response speed, simple structure, no pollution, no noise, no vibration energy saving, etc.. It is a kind of automatic control device with good performance and good performance. Has been widely used in papermaking, printing, plastics, rubber, textile, printing and dyeing, wire and cable, metallurgy, tablet press and other related coiling and winding tension control. Magnetic particle brake is also often used in the transmission of mechanical dynamometer load and braking, etc.. Magnetic particle brake and magnetic particle clutch are often paired with the use of. Single axis magnetic particle brake application:
1, buffer start, stop use: the use of the smooth characteristics of the link and the fixed torque characteristics to achieve the buffer start and stop.
2, continuous sliding, tension control
3, torque limiter
4, high speed response
5, power absorption
6, positioning stop using
7, analog load
Magnetic powder brake has the following characteristics:
1, can easily carry out a wide range of control.
2, can achieve continuous sliding operation.
3, can get the stability of the torque.
4, no voice. The sliding mode of the action plane will occur in the friction mode, but it will not appear, and it will not make a link, so the operation is quite quiet.
5, heat capacity. As a result of the use of the heat resistance of the magnetic particles and the use of the ideal cooling method, even if it is too harsh for a continuous operation, can also be used for ease of use.
6, can achieve the continuous and driving state of smooth. Because of the static friction coefficient and dynamic friction coefficient is almost the same, so when the total link does not produce a shock, can be due to the load plus or minus. Magnetic particle brake use note:
1, please pay attention to moisture. Magnetic powder moisture, the performance will become unstable, so be very careful not to let the oil or water intrusion into the interior. Especially the installation of the gear box, the oil branch through the shaft part penetrated inside, so use a completely sealed film.
2, please note that the surface temperature. Continuous operation of the surface caused by the maximum temperature of 90 degrees below the operation, more than the value, the durability will be greatly reduced. Please be sure to use the above threshold temperature as the standard, and must be kept in the allowable sliding rate.
