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Magnetic Powder Clutch Working Principle

- Aug 31, 2019-

When the excitation coil is energized, the yoke generates a working magnetic flux, and at this time, the alloy magnetic powder inside forms a magnetic powder chain in the working chamber (the magnetic powder is connected in a chain shape along the working magnetic flux direction after the energization), and the magnetic powder clutch passes through The torque is transmitted by the principle that the magnetic powder and the working surface, the friction between the magnetic powder and the magnetic powder, and the shearing force generated between the magnetic powder chains are energized.

The clutch is mounted between the engine and the transmission and is an assembly directly associated with the engine in the automotive drive train. Typically, the clutch is mounted with the flywheel assembly of the engine crankshaft and is the component that cuts off and transmits power between the engine and the vehicle driveline. During the entire process from the start of the car to normal driving, the driver can operate the clutch as needed to temporarily disengage or gradually engage the engine and the driveline to shut off or transfer the power output from the engine to the driveline. Its function is to gradually connect the engine and the transmission to ensure the smooth start of the car; temporarily cut off the connection between the engine and the transmission, in order to shift gears and reduce the impact during shifting; The separation function prevents overloading of the transmission system such as the transmission, thereby providing a certain protection. Clutches are similar to switches that engage or disengage power transmission. Therefore, any type of car has a clutch, but in a different form.

The magnetic powder clutch has the following features:

1. Magnetic powder clutch and magnetic powder brake are an excellent automatic control component.

2. With high linearity and high precision torque control.

3, using high temperature coil super alloy magnetic powder, long service life, smooth connection, non-impact magnetic powder clutch

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

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

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

7. Smooth operation, no vibration, no impact, no noise under starting, running and braking conditions.

8. Torque and excitation current are proportional to the specified torque range and can be used as linear adjustment components.

9. 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.

10, frequent separation, fast response, high frequency, can reach 40-60 times per minute, can be widely used in fast working conditions and high frequency occasions. 11. The power amplification factor is high, and a small excitation current can be used to control a large transmission power, which is easy to realize automatic control.

12. Smooth operation, no vibration, no impact, no noise in start-up, running and braking conditions.

13. Overload protection, under the condition of torque overload, the automatic slip operation plays the role of overload protection.

14, small size, light weight. Easy to install and long service life.

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