News
10
2022
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10
What are the common permanent magnet couplers in the market today?
Common buffer couplers on the market include hydraulic couplers, eddy current permanent magnet couplers, synchronous permanent magnet couplers, mechanical buffer couplers, etc.
(1) Hydraulic coupling, traditional use, advantages: low price; disadvantages: oil leakage pollution, no elasticity, regular refueling to maintain the correct water level.
(2) Eddy current permanent magnet coupler, generation coupler, advantages: interlayer transmission, vibration reduction, simple disadvantages of the public: eddy current heating, inelasticity.
(3) Synchronous permanent magnet coupler, a new generation of permanent magnet coupler, advantages: In addition to all the advantages of the vortex permanent magnet, there is no very large elastic displacement and axial force, and there is no heat at all. Disadvantages: short start-up time (most of the impact generated is absorbed by elasticity)
(4) Mechanical buffer coupling, original coupling, advantages: simple, reliable and convenient. Disadvantages: limited buffer, vulnerable to mechanical damage.
How safe is the permanent magnet coupler, such as no flux leakage?
Synchronous permanent magnet coupler: The appearance is smooth, the surface is close to 0, easy to install, and does not affect peripheral equipment. The magnets are sealed inside the inner and outer rotors for simple and safe installation. Adapt to wet, dust and other harsh, harsh working environment.
Vortex permanent magnet coupler: magnetic field exposure, large magnetic field, easy to adsorb magnetic substances, cleaning trouble, large dust, especially not suitable for magnetic dust adsorption, unstable magnetic field, large vibration, friction plate. Over time, the magnetized motor reducer shaft appears. Due to the exposure of the magnet, it is not allowed to use inducer items nearby, the installation requirements are high, the operation is improper, and it is easy to squeeze and injure the limb.
Which product is more convenient to install and remove?
The synchronous permanent magnet coupler is a tube structure, and the tapered sleeve is fixed. The positioning of the two rotors is safe and convenient during installation and disassembly, and the error in millimeter alignment can be allowed. The vortex coupler is a disc open structure, and the position of the two rotors is unstable and troublesome during installation and disassembly.
Product life and maintenance?
The synchronous permanent magnet coupler adopts a tube structure, simple structure, no contact transmission, no friction and wear, maintenance-free, and a service life of up to 20 years. Eddy current permanent magnet coupler is disc open structure, magnetic leakage adsorption. Large axial force. Heat, etc., will increase the amount of retention of the transmission chain, affecting itself and the life of the transmission chain.
Facts have proved that the use of synchronous couplers for small and medium-sized (power) moment of inertia loads is the choice to protect the stable operation of the power line! For large moment of inertia loads, the company is developing couplers that start synchronous operation asynchronously. Coupler suitable for large moment of inertia or large moment of inertia load will also be developed soon. At that time, the permanent magnet transmission to replace the hydraulic transmission will become a reality.
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