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Permanent-magnetic electric suspension bearing

An electric suspension and bearing technology, applied in the directions of bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of complex structure of magnetic suspension bearings, small bearing capacity per unit volume, and wide operation stability, and achieve high utilization rate of magnets, rigidity and so on. Large, low-cost effects

Inactive Publication Date: 2012-03-14
刘新广
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of existing magnetic suspension bearings, such as complex structure, small bearing capacity per unit volume, poor operation stability, and limited application, and designs a permanent magnetic electric suspension bearing with compact structure, high rigidity, and large bearing capacity per unit volume , high running stability, wide application

Method used

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  • Permanent-magnetic electric suspension bearing
  • Permanent-magnetic electric suspension bearing
  • Permanent-magnetic electric suspension bearing

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] Implementation mode 1: if figure 1 Show. The ring-shaped permanent magnet 2 is fixed on the outer circle of the middle part of the magnetic-conducting sleeve 8, which is called the inner magnetic ring. The two ends are symmetrical; the annular permanent magnet 2 is magnetized in the axial direction, and the directions of magnetization on both sides of the cone tips of the two ring cone surfaces (the two sides of the dotted line in the figure) are opposite. The magnetically conductive shaft sleeve 8 and the inner magnetic ring 2 constitute the inner sleeve of the bearing of the present invention.

[0025] The two ends of the inner magnetic ring 2 are symmetrically arranged with two right outer magnetic rings 4 and left outer magnetic rings 6 of the same size and shape. Each side of the large outer circle of the large outer circle has a large gap; the faces of the right outer magnetic ring 4 and the left outer magnetic ring 6 and the inner magnetic ring 2 are formed by ...

Embodiment approach 2

[0026] Implementation mode 2: if image 3Show. On the outer circle of the middle part of the magnetic bushing 11, the radially magnetized outer cone annular right inner magnetic ring 10 and the left inner magnetic ring 14 are fixed, and the right inner magnetic ring 10 and the left inner magnetic ring 14 have the same size and shape. The ring 10 and the left inner magnetic ring 14 small end surfaces are relatively pasted, and the right inner magnetic ring 10 and the left inner magnetic ring 14 are magnetized in opposite directions. Magnetic bushing 11, right inner magnetic ring 10, left inner magnetic ring 14 constitute the inner sleeve of the present invention.

[0027] Outside the right inner magnetic ring 10 and the left inner magnetic ring 14, leave a gap radially to magnetize the outer magnetic ring 15 in the radial direction. The taper of the ring 10 and the left inner magnetic ring 14 is the same, and the outer magnetic ring 15 is opposite to the right inner magnetic ...

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Abstract

The invention discloses a permanent-magnetic electric suspension bearing, which comprises an inner sleeve and an outer sleeve. The inner sleeve and the outer sleeve are respectively provided with an inner magnetic ring and an outer magnetic ring of a conical ring-shaped permanent magnet; each inner magnetic ring and each outer magnetic ring are same in taper; a plurality of conductor coils are embedded on the outer magnetic ring; the conductor coils are evenly distributed along the circumferential direction of the outer magnetic ring; the inner magnetic ring is fixedly arranged onto a magnetic conduction shaft sleeve to form the inner sleeve; the outer magnetic ring is fixedly arranged onto a magnetic conduction cylinder and a magnetic conduction disk to form the outer sleeve; the outer sleeve and the inner sleeve are coaxially sheathed outside the inner sleeve at intervals; and the outer magnetic ring and the inner magnetic ring are opposite at intervals in the manner of same magnetic polarity. The inner sleeve and the outer sleeve are oppositely suspended because of magnetic repulsive forces; when the permanent-magnetic electric suspension bearing is disturbed by an external force, the inner sleeve and the outer sleeve do relative excursion shift, and electrodynamic forces resisting the excursion shift can be generated by the conductor coils, so that the inner sleeve and the outer sleeve are restored to the normal positions. The permanent-magnetic electric suspension bearing disclosed by the invention has a compact and simple structure, high rigidity, high unit volume bearing capacity, high operation stability, low cost and a wide application.

Description

technical field [0001] The invention relates to a magnetic suspension bearing, in particular to a permanent magnetic electric suspension bearing. Background technique [0002] The rotating sleeve and the fixed sleeve of the magnetic suspension bearing are relatively suspended by magnetic force, so there is no friction, no noise, no pollution, no vibration transmission, no lubrication, no maintenance, and long service life during operation. [0003] Magnetic suspension bearings include electromagnetic type, permanent magnet type, electromagnetic permanent magnet combined type, permanent magnet and high temperature superconductor composite type. The electromagnetic type uses the magnetic force generated by the current to make the inner sleeve and outer sleeve of the bearing relatively suspended. The structure of the electromagnetic magnetic suspension bearing is complex, and a complex circuit control system needs to be configured to make the inner sleeve operate with satisfac...

Claims

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Application Information

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IPC IPC(8): F16C32/04
Inventor 刘新广
Owner 刘新广