CN2413082Y

CN2413082Y - Permanent-magnet bearing

Info

Publication number: CN2413082Y
Application number: CN 99218232
Authority: CN
Inventors: 张美芬
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-26
Filing date: 1999-07-26
Publication date: 2001-01-03
Anticipated expiration: 2009-07-26

Abstract

The utility model provides a permanent-magnet bearing which is composed of an outer ring, an inner ring and two side guard caps, wherein, the outer ring, the inner ring and the two side guard caps are all made of hard magnetic material; the outer wall of the outer ring is an N pole, and an inner hole wall is an S pole; both sides of the outer ring are provided with flutes embedded with the guard caps; the outer wall of the inner ring is an N pole, and an inner hole wall is an S pole; both faces of an inner and an outer side caps are respectively N poles and S poles; the inner ring is tightly matched with a rotating shaft through a hole shaft and can rotate with the shaft. The utility model avoids defects caused by friction, and the utility model has the advantages of no maintenance and long service life.

Description

Permanent-magnet bearing

The utility model relates to bearing.

Plain bearing wearing and tearing weak point in working life, waste greatly will often be annotated lubricant oil or repair and replacement at ordinary times, make and the maintenance expense height

The purpose of this utility model provides a kind of freedom from repairs, long service life, the bearing that cost is low.

Its technological scheme is as follows: it is made up of outer shroud, interior ring and both sides door.They are made by hard magnetic material.The outer wall of outer shroud is the N utmost point, and inner hole wall is the S utmost point, and both sides are fluted to embed for door; Endocyclic outer wall is the S utmost point, and inner hole wall is the N utmost point, and interior ring and rotatingshaft adopt hole axle drive fit, can rotate with axle.The outer door of door in door is divided into.Interior door two sides is respectively the N utmost point and the S utmost point, and its diameter is identical with interior ring diameter, ring both sides in being bonded at, and outer door embeds the outer shroud lateral grooves.Between inside and outside ring and the inside and outside door free air cleft P is arranged.

In the above-mentioned structure, the principle that can utilize the same sex to repel each other assembles.Form a solid box, when axle was packed into, interior ring rotated with the axis, it with outer shroud endoporus friction, be suspended in the magnetic field (air), also not with outer door friction, prolong working life greatly, and rotational speed can improve greatly, and removed maintenance works such as oiling from.

Be illustrated below in conjunction with drawings and Examples:

Fig. 1 is the utility model master TV structure schematic representation;

Fig. 2 is A-A cross-sectional schematic of Fig. 1.

As shown in Figures 1 and 2, the utility model is made up of outer shroud 1, interior ring 2, door 3.The outer shroud outer wall is the N utmost point, and inwall is the S utmost point, and free air cleft P is arranged between them.Ring bi-side in interior door 4 is bonded at, N is extremely inside, and S is extremely outside.Outer door 5 embeds in the groove of outer shroud bi-side, and S is extremely inside, and N extremely outwards repels each other with the interior door same sex.Axle 7 is an axis hole drive fit mutually with interior ring endoporus, during use in ring and door rotate with axle 6, do not reach outer door and do not touch mutually with outer shroud, be suspended in the air.

Claims

1, a kind of Permanent-magnet bearing is characterized in that it is made up of outer shroud, interior ring and both sides door, and they are made by hard magnetic material, and the outer wall of outer shroud is the N utmost point, and inner hole wall is the S utmost point; Both sides are fluted to embed for door; Endocyclic outer wall is the S utmost point, inner hole wall is the N utmost point, interior ring adopts hole axle drive fit with rotatingshaft, can rotate with axle, the outer door of door in door is divided into, interior door two sides is respectively the N utmost point and the S utmost point, its diameter is identical with interior ring diameter, ring both sides in being bonded at, outer door embeds the outer shroud lateral grooves, and free air cleft is arranged between the inside and outside ring.