Segmented open flexible segment radial protection bearing for magnetic bearing

Abstract

The invention discloses a segmented open flexible segment radial protection bearing for a magnetic bearing. The radial protection bearing is an integrated machined forming structural member. The radial protection bearing is composed of eight open flexible bodies of the same structure and an inner ring, an open arc-shaped hole is formed between every two adjacent open flexible bodies, and elliptical through holes are formed in the open flexible bodies and the outer ring surface of the inner ring. The radial protection bearing utilizes a segmented open flexible segment structure and is matched with flexible deformation of the open arc-shaped holes and the elliptical through holes. When a rotor is unstable and generates huge impact, the radial protection bearing can use elastic deformation ofa segmented open flexible segment to absorb a large amount of kinetic energy of the rotor, and other parts in a high-speed rotary magnetic suspension mechanism cannot be damaged.

Description

technical field [0001] The present invention relates to a radial protection bearing, more particularly, to a segmented open flexible segment radial protection bearing for magnetic bearings. Background technique [0002] In recent years, with the advancement of magnetic levitation technology, high-speed magnetic levitation motors have developed rapidly. They have the advantages of high speed, high power density, small size, fast response, and can directly drive loads. They are widely used in high-speed magnetic levitation blowers, magnetic levitation ultra-high vacuum molecules. High-speed rotating equipment such as pumps, magnetic levitation energy storage flywheels and magnetic levitation torque gyroscopes. The bearing capacity of the magnetic bearing is determined by design and is limited by the size. If the actual load exceeds this bearing capacity, or the support of the magnetic bearing fails for some reason, the rotor will no longer be in a suspended state and will be i...

AI Technical Summary

Problems solved by technology

May cause mechanical damage to the bearing cage

Make the rotor continue to collide with other components inside the equipment, such as magnetic bearings and motor stators, resulting in scrapped equipment

Or due to frictional heat, the balls and bearings will expand, resulting in the protection of the bearings stuck and stalled

In order to overcome the congenital defect of the ball-type protective bearing, the present invention designs a radial protective bearing structure with cushioning and energy dispersion, so as to adapt to the large impact that cannot be absorbed by its own elastic deformation when the rotor is unstable. The energy, which leads to the damage of the parts, causes the unexpected situation of the protection bearing stuck and stopped.

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