An axial flux torque transmission device and method
A technology of axial magnetic flux and transmission equipment, applied in the direction of asynchronous induction clutch/brake, etc., to achieve the effect of reducing cost and high stability
Inactive Publication Date: 2016-05-04
SIEMENS AG
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Generally speaking, their performance can only focus on one of cost and reliability
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[0044] The following embodiments of the invention employ symmetrical designs including dual stators (inner and outer stators) or dual rotor structures (ie, dual rotors on both the drive side and the load side). In both cases, the moving parts (rotors) rotate about their axes and are pulled (and sometimes pushed) by the stationary parts (stators), ie in addition to generating torque on the rotors, axial traction is also generated. The following embodiments of the invention make the tractive forces acting on a given rotor (or a given pair of rotors) equal in magnitude and opposite in direction. Therefore, the net (total) axial traction force acting on the rotor is zero. Although mechanical vibration will temporarily deviate from the balance point of the traction force, at least the net axial traction force can be maintained below a certain level, so that the mechanical balance can be maintained by applying a small balance element, thereby ensuring the reliability of the equipmen...
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The invention discloses axial magnetic flux torque transmission equipment and an axial magnetic flux torque transmission method. The axial magnetic flux torque transmission equipment comprises a first drive side rotor, a first load side rotor and at least one magnetic conductor, wherein the first drive side rotor comprises at least one first drive side magnetic body; the first load side rotor comprises at least one first load side magnetic body, and the first drive side rotor and the first load side rotor perform torque transmission through the one of the first drive side magnetic bodies and one of the first load side magnetic bodies; and the magnetic conductors are used for adjusting the magnetic flux arrangement between the first drive side magnetic bodies and the load side magnetic bodies, so that the directions of axial tractive force generated on the first drive side rotor are opposite and / or the directions of the axial tractive force generated on the first load side rotor are opposite when the torque transmission is performed. By the technical scheme, the axial tractive force on a drive side rotor and the axial tractive force on a load side rotor are counteracted respectively, so that the use of an expensive thrust bearing element on the axial magnetic flux torque transmission equipment is avoided, and the reliability of the equipment is ensured.
Description
technical field [0001] The present invention relates to drive and transmission devices, and more particularly to an axial magnetic flux torque transmission device and method. Background technique [0002] Currently, magnetic torque transmission devices such as magnetic couplings and magnetic gears are widely used in industrial drive systems. These devices work by the interaction of magnetic fields established between two magnet assemblies and transmit torque by mutual attraction and repulsion due to the interaction of the magnetic fields. Most conventional magnetic couplings and magnetic gear systems are designed to be in-line so that enormous torque throughput can be achieved. Torque transmitted through a coaxial magnetic coupling or gear system may be provided by the interaction of the magnets in the two magnet assemblies. Larger torques can be transmitted through these coaxial systems compared to non-coaxial magnetic systems, making this prior art the preferred solution...
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IPC IPC(8): H02K49/04
Inventor 刘戈于尔李明
Owner SIEMENS AG