An Electromagnetic Slip Clutch Based on Magnetic Gear Effect
A clutch and magnetic gear technology, applied in the clutch field, can solve the problems of inability to run the load, low efficiency, weak magnetic field, etc., and achieve the effect of changing fault tolerance, small torque fluctuation, and strong fault tolerance.
Active Publication Date: 2020-05-05
WUHAN UNIV OF TECH
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Problems solved by technology
[0003] The traditional electromagnetic slip clutch has large loss and low efficiency at low speed, and is not suitable for long-term low-speed operation. In addition, for the excitation type slip clutch, when the excitation current is too small, the generated magnetic field is weak and the generated torque is too small. The load cannot run and the phenomenon of runaway will occur
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Embodiment Construction
[0023] The present invention will be further described below in conjunction with accompanying drawing.
[0024] As shown in the figure, this embodiment provides an electromagnetic slip clutch based on the magnetic gear effect, including an outer rotor 1, an inner rotor 10, a three-phase winding 2, a magnetizing winding 8, and a control circuit 6. The inner and outer The rotors are coaxially arranged on the inner and outer sleeves. The outer rotor 1 is connected to the driving shaft 5. The outer rotor 1 includes an outer rotor body, and a plurality of outer rotor teeth are arranged on the inner circumference of the outer rotor body. The outer rotor slot, on which the three-phase winding 2 is wound. The inner rotor 10 is connected to the driven shaft 9, the inner rotor 10 includes an inner rotor body, a plurality of inner rotor teeth are arranged on the outer circumference of the inner rotor body, and inner rotor slots are formed between adjacent inner rotor teeth; A magnetizin...
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The invention discloses an electromagnetic slip clutch based on a magnetic gear effect. The electromagnetic slip clutch includes an outer rotor, an inner rotor, a three-phase winding and a magnetizing winding. The outer rotor is connected with a driving shaft. The three-phase winding is wound around an outer rotor slot. The inner rotor is connected with a driven shaft. The magnetizing winding is wound around an inner rotor slot. An annular modulation ring is arranged on the inner wall of the outer rotor circumferentially and is fixedly connected with the outer rotor. A permanent magnet is fixedly connected with the tooth top of the inner rotor. An air gap is arranged between the permanent magnet and the modulation ring. The electromagnetic slip clutch is based on a magnetic gear effect. The modulation ring modulates a magnetic field so as to achieve a purpose of transmitting large torque without increasing the volume of the electromagnetic slip clutch, thereby greatly increasing the torque density of a transmission device and achieving better torque transmission. Further, the modulation ring is located between the outer rotor and the inner rotor, separates the magnetic field on the inner and outer rotors, and has an anti-interference effect.
Description
technical field [0001] The invention relates to a clutch, in particular to an electromagnetic slip clutch based on a magnetic gear effect, which is applied to transmission systems in related fields such as shipbuilding, papermaking, metallurgy, hoisting machinery, and automobile transmissions. Background technique [0002] Electromagnetic slip clutches can generally be divided into permanent magnet electromagnetic slip clutches and excitation electromagnetic slip clutches. The difference is that permanent magnet electromagnetic slip clutches are used to generate the main magnetic field. To generate the main magnetic field is the field winding. [0003] The traditional electromagnetic slip clutch has large loss and low efficiency at low speed, and is not suitable for long-term low-speed operation. In addition, for the excitation type slip clutch, when the excitation current is too small, the generated magnetic field is weak and the generated torque is too small. The load can...
Claims
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IPC IPC(8): H02K49/10
CPCH02K49/106
Inventor 李建贵王保国罗瑞仁
Owner WUHAN UNIV OF TECH