Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Series electromagnetic-elastic foil combined bearing

An elastic foil, hybrid bearing technology, applied in magnetic bearings, rotating bearings, bearings, etc., can solve the problems of rotor floating, large wear, low bearing capacity, etc., to reduce the total volume, facilitate processing, occupy small space effect

Inactive Publication Date: 2010-08-11
XI AN JIAOTONG UNIV
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the foil bearing has low bearing capacity under the low-speed conditions of starting and stopping, and cannot completely float the rotor, causing friction between the journal and the top layer of foil, and greater wear and tear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Series electromagnetic-elastic foil combined bearing
  • Series electromagnetic-elastic foil combined bearing
  • Series electromagnetic-elastic foil combined bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The invention mainly aims at the basic requirements of not increasing the axial length of the bearing and not increasing the air gap between the electromagnetic bearing and the rotor journal, and designs the structure for installing the elastic foil bearing.

[0024] refer to figure 1 , an overall structure of an electromagnetic-elastic foil hybrid bearing arranged in series, including a bearing seat 17, an electromagnetic bearing 1 is arranged in the bearing seat 17, a magnetic pole 6 is arranged on the electromagnetic bearing 1, and a coil 7 is wound on the magnetic pole 6, and the electromagnetic bearing 1 A left end cover 2 and a right end cover 3 for pressing the magnetic pole 6 are arranged in the axial direction, and two elastic foil bearings 5 ​​are nested between the left end cover 2 and the ri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a series electromagnetic-elastic foil combined bearing integrated structure, which comprises a bearing base 17, wherein an electromagnetic bearing 1 is arranged in the bearing base 17; the electromagnetic bearing 1 is provided with a magnetic pole 6; the electromagnetic pole 6 is wound with a coil 7; the electromagnetic bearing 1 is axially provided with a left end cap 2 and a right end cap 3 which tightly press the electromagnetic pole 6; the left end cap 2 and the right end cap 3 are provided with grooves 12 along the circumferential direction; and a top elastic foil 13 and a bottom elastic foil 14 are arranged in the grooves 12. A rotor is suspended by the electromagnetic bearing 1, a lubricating gas film is arranged for supporting the rotor on the surfaces of the elastic foil 5 and a rotor shaft neck 4 when the rotor is accelerated to reach a takeoff speed, and when the electromagnetic bearing is in an idle state, the rotor can be independently supported by the elastic foil bearing 5. The series electromagnetic-elastic foil combined bearing structure has the characteristics of low power consumption, large bearing force, high precision and high stability.

Description

technical field [0001] The invention relates to a bearing, in particular to an electromagnetic-elastic foil hybrid bearing arranged in series. Background technique [0002] Electromagnetic bearing is a high-performance bearing that uses magnetic force to suspend the rotor, so that the rotor and stator can be supported without mechanical friction. At present, the most common one is active magnetic bearing (Active Magnetic Bearing, referred to as AMB). The active magnetic bearing does not require lubrication and sealing, completely eliminates wear, and is controllable. It can actively control the rotor position, and the bearing stiffness and damping are adjustable, and the dynamic performance is very good; , the carrying capacity of the electromagnetic bearing cannot be further improved, and with the increase of the rotational speed, the time lag phenomenon of the system is relatively serious, which may easily lead to instability. [0003] The elastic foil bearing is a fluid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/00
CPCF16C17/024F16C32/0402F16C32/048
Inventor 孙岩桦田野徐益飞虞烈
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com