Qian Wei introduces the self-priming oil pump with permanent

Recently, a new type of self-priming oil pump with permanent magnet bearing has been successfully developed in Jiangsu University.

Due to the rotor and no mechanical contact and friction, low vibration and equipment noise of the pump, the model test measured noise below 40 dB.

The researchers were invited to the 13th Annual Conference of the International Community on Magnetic Bearings, held in the United States in October, to present the study.

According to the school and the national pump system engineering center, Professor Qian Wei introduced, this technical innovation will be ordinary three-phase AC motor magnetic coupling drive means, broke the "no shaft and shaft bearing rotation must be" the traditional principle and practice of mechanical rotation, its rotation shaft has no, no visible bearing,

The pure force of a permanent magnet whose impeller looks like an alien flying saucer acts in full suspension and rotates stably.

Qiankun Xiwei said that the biggest advantage is that permanent magnet bearings can solve the problem of mechanical durability of bearings.

Free self-priming oil pump mechanical wear, without lubrication and sealing, long service life.

With water as the test medium, it is shown that the permanent force can adjust the size of the force properly, so as to make the body balance the flow, the permanent magnet bearing self-priming oil pump can achieve a stable balance, which shows that the permanent magnet suspension technology can achieve stability in the dynamic state.

The successful application of expert self-priming oil pump said that permanent magnet bearing, magnetic levitation bearing self-priming oil pump shows the feasibility of permanent magnet suspension technology, reliability and repeatability, national defense, biomedical engineering and other fields, and has a broad application prospect.

It works without the ball.

The stable operation of the world's first self-priming oil pump with permanent magnet bearing was realized by using permanent magnet suspension technology, which was recently developed by Jiangsu University.

The traditional concept of mechanical rotation "without shaft and without shaft bearing rotation must be" in the invention challenges the scientific community to prove that the "unstable" permanent maglev technology "can be stable" under dynamic conditions.

The newly developed permanent magnet rotor bearing is only self-priming oil pump, with no visible bearing shaft and the force of permanent magnet in order to achieve invisible bearing function.

The researchers say the force between two magnets is a permanent magnetic force.

The bearing is fixed to the outer ring of the stator impeller and the inner ring.

This does not occur in stator mechanical contact between the rotor and the motor.

Persistent magnetic forces with the same magnetic poles repel, attract and repel each other on very different principles through the permanent magnetic forces generated by the rotor to achieve the levitation effect.