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Double-suspension passive support radial bearing for magnetic fluid

A suspension bearing, dual technology, applied in the direction of liquid cushion bearing, bearing, shaft and bearing, etc., can solve the problems of low bearing capacity, low torque, high cost, increase bearing capacity and rigidity, improve accuracy and rigidity, and release design The effect of restriction

Inactive Publication Date: 2017-09-22
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its advantages are small torque, good for high-speed rotation, can be used in vacuum, wide range of applicable temperature, low noise, long life, no pollution caused by lubrication, etc.; disadvantages are high cost and relatively low carrying capacity

Method used

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  • Double-suspension passive support radial bearing for magnetic fluid
  • Double-suspension passive support radial bearing for magnetic fluid
  • Double-suspension passive support radial bearing for magnetic fluid

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Embodiment example

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings: as a preferred solution, the diameter of the shaft 5 is 50mm; the diameter of the stator 16 is 114mm, the thickness is 10mm, and the length and width of each unipolar magnetic pole winding part in the unipolar magnetic pole group 24 are 18mm. 15mm, height 10mm, the projected rectangular area of ​​each unipolar pole end in the unipolar magnetic pole group 24 has a length of 28mm, a width of 15mm, the number of arrays is 8, the diameter of the radial through hole 23 is 6mm, the number of arrays is 8, and the projection rectangle of the slot 25 The length is 15mm, the width is 5mm, the liquid return hole 22 has a diameter of 6mm, and the number of arrays is 8. The permanent magnet ring 15 has an outer diameter of 84mm, an intermediate diameter of 57mm, an inner diameter of 50mm, and a length of 50mm.

[0031] In the initial operation, the coil 14 is energized, and the unipola...

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Abstract

The invention discloses a double-suspension passive support radial bearing for magnetic fluid. The bearing comprises a bearing cover, a bearing base, a stator, a permanent magnetic ring and a shaft, wherein the stator is arranged on the bearing base; the bearing base 4 is in transition fit with the stator; the permanent magnetic ring is sleeved in the stator; the stator is in clearance fit with the permanent magnetic ring; the permanent magnetic ring is sleeved on the shaft and is in interference fit with the shaft; the bearing cover is sleeved on the stator and fixed on the bearing base; and the bearing cover is in transition fit with the stator. According to the bearing disclosed by the invention, the advantages of two support systems of liquid static pressure and magnetic suspension are integrated, so that the bearing capability and rigidity of the bearing can be greatly increased without separately arranging an auxiliary support and circulating cooling system, a complicated electric control system is not needed, so that the design limitation of an oil return tank can be released, and the precision and the rigidity of the bearing system are improved.

Description

[0001] Field [0002] The invention relates to the design field of sliding bearings, in particular to the design of a magnetic-hydraulic double-suspension passive radial bearing with heavy load and large rigidity. Background technique [0003] Hydrostatic bearings have the advantages of good radial rigidity, high positioning accuracy, good vibration resistance, etc., so they have been widely valued and widely used. With the development of global industry, in the occasions of high power, heavy load and high speed operation, the friction power of hydrostatic bearings is very large, which is easy to cause large thermal deformation of the bearing due to excessive temperature. The so-called magnetic bearing is a bearing that uses magnetic attraction and repulsion to support rotation, also called magnetic suspension bearing. Its advantages are low torque, good for high-speed rotation, can be used in vacuum, wide temperature range, low noise, long life, no pollution caused by lubrication...

Claims

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Application Information

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IPC IPC(8): F16C32/06F16C32/04
CPCF16C32/0459F16C32/0474F16C32/0629
Inventor 赵建华刘竟成王强张斌陈涛吴晓晨王进高殿荣
Owner YANSHAN UNIV
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