CN202937821U - Combined magnetic seal structure of rotating shaft - Google Patents
Combined magnetic seal structure of rotating shaft Download PDFInfo
- Publication number
- CN202937821U CN202937821U CN 201220620434 CN201220620434U CN202937821U CN 202937821 U CN202937821 U CN 202937821U CN 201220620434 CN201220620434 CN 201220620434 CN 201220620434 U CN201220620434 U CN 201220620434U CN 202937821 U CN202937821 U CN 202937821U
- Authority
- CN
- China
- Prior art keywords
- running shaft
- magnetic
- rotating shaft
- ring
- seal structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a combined magnetic seal structure of a rotating shaft. The combined magnetic seal structure is characterized in that one end of a graphite sealing ring of the combined magnetic seal structure is fixedly arranged on a sealing shell and can rotate along with the rotating shaft and the sealing shell, the other end of the graphite sealing ring is in contact with a magnetic body which is fixed on an installation seat, the rotating shaft is arranged on the shell through a bearing, the installation seat and the shell are fixed, and an inner ring of the sealing shell, and the parts of the installation seat, which are in contact with the shell and the magnetic body, are provided with rubber ring grooves and O-shaped sealing rings. The combined magnetic seal structure has the advantages of being compact in structure and simple and convenient in installation, and greatly reducing the leakage rate of a dynamic seal of the high-speed rotating shaft.
Description
Technical field
The utility model relates to a kind of running shaft composite magnetic sealing configuration.
Background technique
The rotation axis seal structure is the important component part of aeroengine, due to now blocking, modular design and the higher usage requirement of motor, to the movable sealing structure of running shaft proposed that sealability is high, quick-replaceable, interchangeability is high and the requirement of light weight.Present rotation axis seal structure generally adopts lip-type packing, O-ring seals, piston ring sealing, magnet fluid sealing.Because each axle of engine driving system is that rotating speed is higher and the quick-detachment of leak-down rate and sealing configuration is had strict requirement, common seal form easily lost efficacy and was difficult for changing, especially reach 20000r/min when above at rotating speed, the failure conditions such as leakage, wearing and tearing easily appear in conventional seals, enter motor internal contamination lubricant oil because the seal failure meeting causes leakage of oil or foreign matter etc. often, cause engine failure.
Summary of the invention
The purpose of this utility model provides a kind of can (maximum speed 27500r/min) carry out the effectively composite magnetic sealing configuration of work under high speed conditions, its sealing configuration is difficult for losing efficacy, but modular design, can in the situation that do not use special tool(s), needn't decompose miscellaneous part and realize that quick-replaceable safeguards, guarantee that the effective operation of motor is reliable.
the technical solution of the utility model is: the running shaft composite magnetic sealing configuration of motor comprises running shaft, bearing and the seal casinghousing of installing successively in the end of running shaft, graphite-seal ring, magnetic, fitting seat, one end of described graphite-seal ring is fixedly mounted on also can be with running shaft on seal casinghousing, the seal casinghousing rotation, the other end of graphite-seal ring contacts with magnetic, described magnetic is fixed on fitting seat, running shaft is arranged on housing by bearing, fitting seat is fixed by screw and housing, the interior ring of seal casinghousing, the position that fitting seat contacts with housing and magnetic is provided with aprons slot and O-ring seals is installed, the material of magnetic is magnet steel, the material of seal casinghousing is stainless steel.
The utility model in use, by multiple tracks O-ring seals and graphite-seal ring sealing, the magnetic material adopts magnet steel, the seal casinghousing material adopts stainless steel, rely on magnetic force to keep fitting tightly between rotating ring and stationary ring, and provide lasting magnetic compensation axial motion in when work,, guarantee that sealing is reliable and reduce leakage rate than spring force safety and reliability than spring structure compactness and magnetic force.The utility model compact structure is installed simple and conveniently, greatly reduces the leak-down rate of high-speed rotating shaft motive sealing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, running shaft composite magnetic sealing configuration comprises running shaft 1, bearing 2 and the seal casinghousing 3 of installing successively in the end of running shaft 1, graphite-seal ring 5, magnetic 6, fitting seat 9, one end of described graphite-seal ring 5 is fixedly mounted on also can be with running shaft 1 on seal casinghousing 3, seal casinghousing 3 rotations, the other end of graphite-seal ring 5 contacts with magnetic 6, described magnetic 6 is fixed on fitting seat 9, running shaft 1 is arranged on housing 10 by bearing 2, fitting seat 9 is fixing with housing 10 by screw 11, the interior ring of seal casinghousing 3, the position that fitting seat 9 contacts with housing 10 and magnetic 6 is provided with aprons slot and O-ring seals 4 is installed, 7, 8, the material of magnetic 6 is magnet steel, the material of seal casinghousing 3 is stainless steel.
Claims (3)
1. running shaft composite magnetic sealing configuration, it is characterized in that, described structure comprises running shaft [1], bearing [2] and the seal casinghousing [3] of installing successively in the end of running shaft [1], graphite-seal ring [5], magnetic [6], fitting seat [9], one end of described graphite-seal ring [5] is fixedly mounted on seal casinghousing [3] upward and can be with running shaft [1], seal casinghousing [3] rotation, the other end of graphite-seal ring [5] contacts with magnetic [6], described magnetic [6] is fixed on fitting seat [9], running shaft [1] is arranged on housing [10] by bearing [2], fitting seat [9] is fixing with housing [10], the interior ring of seal casinghousing [3], fitting seat [9] is provided with aprons slot and O-ring seals [4 is installed with the position that housing [10] and magnetic [6] contact by screw [11], 7, 8].
2. as claim 1 running shaft composite magnetic sealing configuration, it is characterized in that, the material of described magnetic [6] is magnet steel.
3. as claim 1 running shaft composite magnetic sealing configuration, it is characterized in that, the material of described seal casinghousing [3] is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620434 CN202937821U (en) | 2012-11-21 | 2012-11-21 | Combined magnetic seal structure of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620434 CN202937821U (en) | 2012-11-21 | 2012-11-21 | Combined magnetic seal structure of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937821U true CN202937821U (en) | 2013-05-15 |
Family
ID=48322059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620434 Expired - Fee Related CN202937821U (en) | 2012-11-21 | 2012-11-21 | Combined magnetic seal structure of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278734A (en) * | 2021-12-29 | 2022-04-05 | 清华大学 | Composite sealing device for magnetic conduction shaft |
-
2012
- 2012-11-21 CN CN 201220620434 patent/CN202937821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278734A (en) * | 2021-12-29 | 2022-04-05 | 清华大学 | Composite sealing device for magnetic conduction shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20171121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |