Transmission characteristics and transmission mode of magnet
Transmission characteristics and transmission mode of magnetic pump
1. Magnetic drive pump transmission characteristics
The magnetic drive of the magnetic drive pump adopts a dense cylindrical structure of pulling and pushing. Under the same magnetic volume, the torque that can be transmitted is about 1.5 times that of the dispersed magnetic structure. This structure maximizes the utilization of magnetic energy. The weight of the inner and outer rotors is also greatly reduced, reducing the influence of the weight and imbalance of the rotor system on the sliding bearings.
2. Transmission form of magnetic pump
There are two structural forms of magnetic drive.
(1) Disc-shaped magnetic coupling
The disc-shaped magnetic coupling consists of two facing ring magnets and a spacer sleeve in the middle. A large axial force will be generated between the two magnets. Measures to balance the axial force and thickening of the isolation sleeve must be adopted, otherwise the isolation sleeve will be deformed and damaged.
(2) Cylindrical magnetic coupling
The cylindrical magnetic coupling has no axial force. The cylindrical magnetic coupling is composed of inner and outer rotors. The base body of the inner and outer rotors is made of ordinary steel that can be magnetized. A plurality of permanent magnets are closely arranged in the parallel axis direction of the outer circular surface of the inner rotor and the inner circular surface of the outer rotor to form a "combined pull-push magnetic circuit". Theory and practice have proved that this cylindrical "combined pull-push magnetic circuit" can obtain a larger transmission torque per magnetic circuit under the same magnetic circuit parameters, which is about 4 times that of the traditional decentralized magnetic circuit. The magnetic pump uses this cylindrical "combined pull-push magnetic circuit".
