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Like-pole-type eight-pole radial electromagnetic suspension bearing

An electromagnetic suspension and bearing technology, applied in the directions of magnetic bearings, bearings, shafts and bearings, can solve the problems of complex installation, high cost and large volume, and achieve the effect of easy installation, low cost and reduced volume

Active Publication Date: 2017-03-22
ZHEJIANG UNIV OF TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing magnetic bearings such as large volume, complicated installation and high cost, the present invention provides a homopolar eight-pole radial electromagnetic suspension bearing with reduced volume, simple installation and low cost

Method used

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  • Like-pole-type eight-pole radial electromagnetic suspension bearing
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  • Like-pole-type eight-pole radial electromagnetic suspension bearing

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] refer to Figure 1 to Figure 5 , a homopolar eight-pole radial electromagnetic suspension bearing, including a bearing seat, a stator 13 and a rotor, the rotor is located in the inner hole of the stator 13, the stator 13 is composed of eight mutually independent electromagnets 131, eight The electromagnets 131 are arranged at equal circular arc intervals and on the same installation plane, the two magnetic poles of the electromagnets 131 are arranged side by side and all face the rotor, and the magnetic poles of the same polarity of the eight electromagnets are radially arranged on the same cross section; the bearing There are eight electromagnet installation grooves 2 arranged on the inner inner hole of the seat, and each electromagnet corresponds to each electromagnet installation groove. The bearing seat is provided with two, respectively, the first bearing s...

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Abstract

A like-pole-type eight-pole radial electromagnetic suspension bearing comprises bearing seats, a stator and a rotor, wherein the rotor is located in an inner hole of the stator; the stator is composed of eight mutually independent electromagnets which are arranged at equal circular arc intervals and located on the same installation plane, and the like-polarity magnet poles of the eight electromagnets are arranged on the same cross section in the radial direction; eight electromagnet installation grooves are formed in the inner hole of the inner side of each bearing seat at equal circular arc intervals, and the electromagnets are in one-to-one correspondence with the electromagnet installation grooves; the two bearing seats are the first bearing seat and the second bearing seat, and the electromagnet installation grooves of the second bearing seat are in one-to-one correspondence with the electromagnet installation grooves of the first bearing seat to form electromagnet installation cavities; the electromagnets are located in the electromagnet installation cavities and are in interference fit with the electromagnet installation cavities; and the second bearing seat and the first bearing seat are fixed together. The like-pole-type eight-pole radial electromagnetic suspension bearing is smaller in size, easy to install and low in cost.

Description

technical field [0001] The invention relates to the field of electromagnetic suspension bearings, in particular to a homopolar eight-pole radial electromagnetic suspension bearing. Background technique [0002] Electromagnetic suspension bearings make the rotor and stator of the bearings in a relative suspension state through electromagnetic force; therefore, electromagnetic suspension bearings exhibit many advantages, such as: no lubrication, no friction / wear, low noise, suitable for high-speed and ultra-high-speed operation occasions . Magnetic suspension bearings have been widely used in aerospace, precision instruments, high-speed and high-precision CNC machine tools and other fields. [0003] Electromagnetic suspension bearings are mainly divided into three categories: ① passive magnetic bearings ② active magnetic bearings ③ hybrid magnetic bearings. The electromagnetic control part of the electromagnetic suspension bearing controls the stiffness and damping of the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04
CPCF16C32/047F16C32/048F16C2300/22
Inventor 胡雄心郎成业于振杰
Owner ZHEJIANG UNIV OF TECH
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