An integrated electromagnetic protection bearing device

A bearing protection, integrated technology, applied in magnetic bearings, bearings, shafts and bearings, etc., can solve the problems of complex structure and slow response speed of the bearing protection device, and achieve the effects of multiple functions, simplified structure and fast response speed.

Active Publication Date: 2021-10-19
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of slow response speed and complex structure of the protection bearing device in the prior art, the present invention proposes an integrated electromagnetic protection bearing device, which solves the above technical problems

Method used

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  • An integrated electromagnetic protection bearing device
  • An integrated electromagnetic protection bearing device
  • An integrated electromagnetic protection bearing device

Examples

Experimental program
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Effect test

Embodiment 1

[0031] like Figure 1-3 As shown, this embodiment provides an integrated electromagnetic protection bearing device, which is installed at both ends of the rotor 1. Under normal circumstances, the role of electromagnetic adsorption force in the radial magnetic bearing 8 and the integrated electromagnetic protection bearing device Next, the rotor 1 can be in the center position in the radial direction and the axial direction, and rotate at high speed under the action of the motor 7; when the magnetic levitation system is powered off or fails, the integrated electromagnetic protection bearing device can support the rotor 1 , to protect the role of radial magnetic bearing 8. like figure 1 As shown, the motor 7 is located in the middle of the rotor 1, the two radial magnetic bearings 8 are symmetrically arranged on both axial sides of the motor 7, and the integrated electromagnetic protection bearing device A is symmetrically arranged on the axial outer side of the two radial magn...

Embodiment 2

[0043] This embodiment is basically the same as the first embodiment, the only difference is: in this embodiment, the axial thrust disc 12 is located on the axial outer side of the support assembly 2, and the axial inner side of the axial thrust disc 12 abuts against the stepped surface of the rotor 1 , the axial outer side of the axial thrust plate 12 is limited by the limiting member 13 fixed on the rotor 1 . The tapered outer surface 11 in this embodiment is directly processed on the outer peripheral surface of the rotor 1 , and the outer diameter of the axially inner end of the tapered outer surface 11 is larger than the outer diameter of the axially outer end.

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Abstract

The invention relates to the field of magnetic suspension bearing systems, in particular to an integrated electromagnetic protection bearing device. It includes a conical outer surface, and the two conical outer surfaces are symmetrically arranged at both ends of the rotor; the support assembly, two sets of support assemblies are respectively set corresponding to the two conical outer surfaces, and the inner peripheral surface of the support assembly is adapted to the conical outer surface. The inner conical surface of the rotor can be axially approached and rotated to support the conical outer surface; the axial thrust disc, two axial thrust discs are symmetrically arranged at both ends of the rotor; the electromagnetic adsorption component, the two sets of electromagnetic adsorption components are located in the same The support assembly and the axial thrust disc at the end provide adsorption force. Under normal working conditions, the rotor can rotate normally, and the two axial thrust discs can ensure the axial balance of the rotor under the action of the adsorption force; in the emergency state, the support assembly Under the action of the reset piece, the outer surface of the cone is axially approached and supported. The technical problems of slow response speed and complex structure of the bearing protection device in the prior art are solved.

Description

technical field [0001] The invention relates to the field of magnetic suspension bearing systems, in particular to an integrated electromagnetic protection bearing device. Background technique [0002] The magnetic suspension bearing system will lose the bearing capacity of the rotor in the event of an accidental power failure, so it is necessary to install a protective bearing device to provide temporary support for the rotor to prevent the high-speed rotating rotor from falling on the stator and cause damage to the stator. The safety of the magnetic levitation system. At present, the protective bearings used in the magnetic suspension system mostly use complex external mechanical mechanisms. Due to the complexity of the mechanism and the uncertainty of the accident, when the magnetic suspension bearing system is unexpectedly powered off, there will be phenomena such as the protection mechanism being stuck, and the bearing will be affected by the rotor. Large shocks and vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04
CPCF16C32/0402F16C32/0442F16C32/0468F16C32/048F16C32/0493F16C2300/22
Inventor 俞成涛吉用秋孙月梅王秀英陈宇
Owner JIANGSU UNIV OF TECH
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