Magnetic Powder Clutch And Manual Tension Controller Working Principle

Manual tension controller features: LED display digital display circuit, intuitive and clear. The external signal control (0~10V) control mode is pulse width modulation switching type adjustment system. Auxiliary power output (DC12v 500MA) is available. It has an overload short-circuit protection circuit, stable output, safe and reliable with a highly adaptable switching power supply (85~264v 50/60Hz).

Tension detector technical parameters:

Detection accuracy: 0.5%

Detection principle: strain gauge bridge

Bridge impedance: 350Ω

Maximum overload: 500%

Sensitivity (voltage output): 2mv/v

 Power supply: 10V

Systematic error (hysteresis, importance, linearity error): less than the final measured value +/- 0.05%

The magnetic powder clutch and the magnetic powder brake are an excellent automatic control component, which is a combination of a transmission unit and a driven unit. It uses magnetic powder as the working medium and uses the excitation current as the control means to achieve the purpose of controlling braking or transmitting torque. Its output torque has a good linear relationship with the excitation current, and has the advantages of fast response speed and simple structure, so it is suitable for wire, cable, printing, packaging, textile, rubber leather, metal foil strip processing, paper making and paper processing. Etc. In the automatic tension control system for the take-up device. The imported super-alloy magnetic powder with excellent heat resistance has low temperature rise, constant output torque, fast response speed and high frequency operation. The use of high temperature resistant coils and imported bearings makes the operation smooth. In the state of starting, running and braking, there is no vibration, no impact and no noise. With overload protection, in the case of torque overload, the automatic slip line acts as an overload protection, with small size, light weight, easy installation and long service life.

Magnetic powder clutch / brake characteristics and superiority:

Characteristics

1. Torque and excitation current are proportional to the specified torque range and can be used as a linear adjustment element.

 2. The output torque is constant because the magnitude of the torque depends only on the magnitude of the excitation current, regardless of the slip speed.

 3. Frequent separation, fast response, high frequency, 40-60 times per minute, can be widely used in fast working conditions and high frequency occasions.

 4. The power amplification factor is high, and a large excitation current can be used to control a large transmission power, which is easy to realize automatic control.

 5. Smooth operation, no vibration, no impact, no noise in starting, running, braking state.

 6. Overload protection, in the case of torque overload, automatic slip operation acts as overload protection.

 7. Small size and light weight. Easy to install and long service life.

Superiority

 First, CNC precision manufacturing, high precision, fine processing, good linearity and superior performance.

 Second, the magnetic powder has high purity, no black carbon powder, stable performance and long service life.

 Third, aluminum alloy structure, with excellent heat dissipation performance, good demagnetization, fast response.

 Fourth, the operation is stable, in the state of starting, running and braking, no vibration, no impact, no noise.

Magnetic powder clutch / brake description

The magnetic powder clutch and brake are combined by a transmission unit (input shaft) and a driven unit (output shaft). The space between the two sets of cells is filled with granular magnetic powder (about 40 microns of rest). When the magnetic coil is not conducting, the torque will not be transmitted from the transmission shaft to the driven shaft. However, if the coil is electromagnetically energized, the magnetic powder will attract hardening due to the action of the magnetic force, and the torque will be transmitted between successive slidings. .

A. Magnetic Powder Clutch Series The magnetic powder clutch is an excellent automatic control component. It uses magnetic powder as the working medium and uses the excitation current as the control means to achieve the purpose of controlling braking or transmitting and transferring. Its output transition has a good linear relationship with the excitation current and has nothing to do with the speed or slip, and has the advantages of fast response and simple structure.

Widely used in wire, cable, packaging, printing, paper and paper processing, textile, rubber and leather, metal foil strip processing and other automatic tension control systems for coiling devices. The magnetic powder clutch is also used for buffer starting, overload protection, speed regulation and the like.

working principle:

The coil stationary magnetic powder clutch and the magnetic powder brake are automatic devices that control the input current to change the output transition. * When the coil is not energized, the input shaft rotates, and the magnetic powder is pressed against the inner wall of the clamp ring under the action of centrifugal force, and the output shaft is not in contact with the input shaft. At this time, it is in an idling state. When the coil is energized, the magnetic powder generates a magnetic flux under the action of the magnetic force line, so that the output shaft and the input shaft become a rigid body and rotate, and a slip occurs when the overload occurs, and the working state is at this time. Thereby achieving the purpose of transmitting torque.