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A sliding block eliminates clearance and protects bearing device

A technology that protects bearings and eliminates gaps. It is used in bearing assembly, bearings, shafts and bearings to solve problems such as automatic protection of rotors.

Active Publication Date: 2020-09-15
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 problem that the protection bearing device in the prior art cannot automatically protect the rotor in the event of a power failure, the present invention proposes a sliding block elimination gap protection bearing device, which solves the above technical problems

Method used

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  • A sliding block eliminates clearance and protects bearing device
  • A sliding block eliminates clearance and protects bearing device
  • A sliding block eliminates clearance and protects bearing device

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 1-11 As shown, this embodiment proposes a sliding block clearance protection bearing device, which includes a support assembly 1 and a drive element 2, wherein the support assembly 1 and the drive element 2 are both clearance-fitted on the outer periphery of the rotor 3, and when the rotor 3 loses When electricity is dropped, the driving member 2 can push the support assembly 1 to connect with the rotor 3, so as to support the rotor 3.

[0044] The support assembly 1 includes a built-in part 11 and at least two sliders 12. The built-in part 11 is clearance-fitted on the outer periphery of the rotor 3. One end of the built-in part 11 has a chute 111 communicating with the rotor 3. At least two sliders 12 are Distributed in the chute 111, and slide in the chute 111 in the direction inclined to the axis of the rotor 3, when the slider 12 slides in the chute 111, the inner end of the slider 12 is in contact with or away from the rotor 3 . Specifically, the...

Embodiment 2

[0053] This embodiment is basically the same as Embodiment 1, the only difference is that the rotor 3 is provided with a third bearing 8, and the slider 12 is arranged on the outer periphery of the third bearing 8 with a gap. Under the push of the driving member 2, the slider 12 The supporting portion of the third bearing 8 is in contact with the outer ring of the third bearing 8 to support the third bearing 8 and thereby realize the support of the rotor 3 .

[0054] Preferably, the outer periphery of the rotor 3 is provided with a stepped surface, and the stepped surface on the rotor 3 cooperates with the sleeve 31 connected thereon to press against the outer periphery of the third bearing 8 to realize the detachable connection of the third bearing 8 . Further preferably, the sleeve 31 is screwed on the outer periphery of the rotor 3 .

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Abstract

The invention relates to a magnetic suspension bearing system, in particular to a sliding block eliminating clearance and protecting a bearing device. It includes: a support assembly, the clearance of the support assembly is set on the outer periphery of the rotor, the support assembly includes a built-in part and at least two sliders, a chute communicating with the rotor is opened in the built-in part, and at least two sliders are circumferentially distributed on the slide and slide in the chute in the direction inclined to the rotor axis, when the slider slides in the chute, the inner end of the slider is in contact with or away from the rotor; the slider is located at the notch of the chute There is an arc groove with gradually changing axial depth on the end face; the driving part, the driving part provides synchronous axial driving force for at least two sliders, the driving part is rotatably connected with the built-in part, and the driving part is equipped with an arc The slots correspond one-to-one and insert the stakes. The problem that the bearing protection device in the prior art cannot automatically protect the rotor in the case of power failure is solved.

Description

technical field [0001] The invention relates to a magnetic suspension bearing system, in particular to a sliding block eliminating clearance and protecting a bearing device. Background technique [0002] The magnetic suspension bearing system will lose the bearing capacity of the rotor in the case of power failure, overload, etc., so it is necessary to install a protective bearing device to provide temporary support for the rotor that loses support, so as to prevent the high-speed rotating rotor from falling on the stator and ensure the entire The safety of the magnetic levitation system. At present, the protective bearings used in the magnetic levitation system mostly adopt traditional rolling bearings, but in order to make the magnetic levitation system work normally, there is a fixed gap between the rotor and the inner ring of the rolling bearing. Therefore, when the rotor falls, since the gap between the rotor and the bearing cannot be eliminated, the bearing will be gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04F16C41/00
CPCF16C32/0442F16C41/00
Inventor 俞成涛谢超祥孙月梅刘凯磊叶霞李秀莲
Owner JIANGSU UNIV OF TECH
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