Synchronous Magnetic Couplings

/Synchronous Magnetic Couplings
  • Synchronous Magnetic Couplings
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  • Synchronous Magnetic Couplings, Magnetic Synchronous Coupling, Synchronous Motor Magnetic Clutches, Syncronous Coaxial Coupling, Synchronous Permanent Magnet Couplings, synchronous linear planar coupling Magnetic Pump Coupling China Supplier

    Synchronous Magnetic Couplings – Synchronous (Class 1)

    As the name implies, this coupling is a synchronous version that inherently results in a 1:1 relationship between the motion of the driver and follower. As taught in grade schools, like magnetic poles (North-North and South-South) repel each other while opposite poles (North-South) attract. Synchronous couplings exploit these “attractive” and “repulsive” characteristics to produce motion. By placing an array of alternating pole permanent magnets (N-S-N-S) on the driver and an equivalent array of alternating pole permanent magnets on the follower, a “coupled” magnetic circuit is produced with each North and South pole in the driver linked to each, respective, South and North pole of the follower. As the driver moves with respect to the follower, the magnet poles start to overlap one and other, leading to a “push-pull” effect, and, consequent motion. The magnitude of the resultant force depends not only on the amount of overlap, but also on the chosen magnetic material’s characteristics and separation distance between the driver and follower. At some displacement, however, the peak force producing capabilities of the coupling are achieved. Displacement beyond this point results in a decoupling. This decoupling manifests itself as a ratcheting action resulting from like magnetic poles is the driver and follower repelling each other. Unlike its mechanical equivalent, however, the decoupling does not, generally, lead to permanent damage; and synchronization is reinitiated at the next magnetic pole coupling point.

    Pros: Greatest volumetric force density.
    Cons: Limited to a 1:1 motion ratio
    Use: Devices that require direct coupling with no slip during operation.

    Synchronous Magnetic Couplings – Disc type couplings consist of two opposing discs with powerful rare earth magnets. The torque applied to one disc is transferred through an air gap to the other disc. Because of its simple flat design, you can have angular misalignment of up to 3º or parallel misalignment up to ¼” and still transmit nearly full rotational torque. You could also fabricate an inexpensive flat barrier to separate the atmospheres or fluids surrounding the two discs. This is our simplest and most versatile coupling. eddy current magnetic couplings

    Synchronous Magnetic Couplings – The co-axial coupling consists of three parts, the inner hub, the outer hub, and the optional containment barrier. Both the inner and outer hubs consist of a series of rare earth magnets that are ground, potted, and glued to steel hubs. The inner hub is then completely sealed in stainless steel to protect the magnets and hub from damage or corrosive substances.

    Help me designs
    1. What type of coupling is required?
    1. Linear
    2. Torque
    2. What topology are you considering?
    1. Face-to-face (torque coupling)
    2. Coaxial (torque coupling)
    3. Tubular (linear coupling)
    4. Planar (linear coupling)
    3. How much force or torque would you like to transmit?
    4. What Class of coupling are you considering?
    1. Class I – Synchronous
    2. Class II – Eddy Current
    3. Class III – Hysteresis
    5. What speed will the coupling be traveling? (velocity or RPM)
    6. Is a barrier between the driver and follower required? If so, what pressure differential would you like the design to accommodate?
    7. Across what temperature range will this coupling operate?
    8. Are there corrosive elements or fluids that need to be taken into consideration? If so, what type are they?
    9. Geometric requirements:
    1. Driver
    1. Shaft size
    2. Mounting type
    1. Set screw and key
    2. Compression (threaded shaft end)
    3. Taper Lock (not available on all sizes)
    3. Max. OD
    4. Max. Length
    2. Follower
    1. Shaft size
    2. Mounting Type
    1. Set Screw and key
    2. Compression (threaded shaft end)
    3. Taper Lock (not available on all sizes)
    3. Max. Length

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