CN102644744A - Agravic magnetic-force shaft seal device with dynamic grooves - Google Patents
Agravic magnetic-force shaft seal device with dynamic grooves Download PDFInfo
- Publication number
- CN102644744A CN102644744A CN2012101270653A CN201210127065A CN102644744A CN 102644744 A CN102644744 A CN 102644744A CN 2012101270653 A CN2012101270653 A CN 2012101270653A CN 201210127065 A CN201210127065 A CN 201210127065A CN 102644744 A CN102644744 A CN 102644744A
- Authority
- CN
- China
- Prior art keywords
- agravic
- magnetic
- ring
- seal device
- dynamic grooves
- 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.)
- Pending
Links
Images
Abstract
The invention discloses an agravic magnetic-force shaft seal device with dynamic grooves, which comprises a fixed ring and moving rings, wherein the moving rings are mounted on two sides of the fixed ring symmetrically, fluid dynamic grooves are machined at the outer edges of the moving rings, and the fixed ring is provide with permanent magnets. The agravic magnetic-force shaft seal device with the dynamic grooves is characterized in that sealing effect is generated by magnetic force, the moving rings and a rotating shaft run synchronously, abrasion of the rotating shaft is eliminated, the requirement for a gap reserved between the rotating shaft and a fixed part due to gravity is eliminated, no pollutant enters the space among the moving rings and the fixed ring during rotation, the rotating shaft is effectively sealed without any leakage, and safety of bearings is guaranteed. In addition, the agravic magnetic-force shaft seal device with the dynamic grooves has simple structure without any fasteners, and is convenient to machine and assemble.
Description
Technical field
The present invention relates to the mechanical seal field, be specifically related to a kind of agravic dynamic pressure groove magnetic shaft sealing device, be mainly used in the oil sealing or the gas seal of rotating equipment, like pump, gear-box, bearing housing, speed reducer, gearbox, blower, steam turbine etc.
Background technique
Most of rotating equipments all need oil sealing, and oil sealing is that no gap cooperates between outer side surface that makes rotatingshaft and the component that support rotatingshaft, prevents the sealed member that fluid spills from the outer side surface slit of rotatingshaft; What generally use is labyrinth seal or outside framework oil seal and lip seal; The shortcoming of labyrinth seal is exactly: one, pollutant and steam can get in the bearing housing; The lubricating oil product quality is descended; Reduce bearing life, the shortcoming of outside framework oil seal and lip seal is the wearing and tearing axles, causes new pollution and economic loss; The product that utilizes magnetic force to seal is also arranged on the market, ZL01208144.2 for example, the defective of this product is axial seal, has the gap between its O-ring seal and the axle, can leak unavoidably; The patent number of accepting is 200610047827.3 product, do not consider axle axially and the shift compensation after the radial vibration.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem; A kind of agravic dynamic pressure groove magnetic shaft sealing device is provided; When realizing being sealed in the bearing lubrication medium; Prevent that promptly lubricant oil from the reduction oil quality taking place to pollute, can also guarantee the big axle operating conditions of vibration displacement is accomplished shift compensation, realize all-round sealing.
The present invention for realizing the technological scheme that above-mentioned purpose adopted is: a kind of agravic dynamic pressure groove magnetic shaft sealing device; Comprise stationary ring, rotating ring; Said rotating ring is installed in said stationary ring both sides symmetry respectively, and the outer rim of said rotating ring is processed with fluid dynamic pressure groove, and said stationary ring is provided with permanent magnet.
Said permanent magnet is installed in the stationary ring, and stops up with the stationary ring plug.
Between said stationary ring and the gland auxiliary seal ring is installed, between said rotating ring and the axle auxiliary seal ring is installed.
Characteristics of the present invention are: adopt magnetic force to produce sealing, rotating ring synchronoused working with running shaft, eliminate axle wear and tear hidden danger and because of gravity produce to the gap requirement between running shaft and the fixed block; Realize that the no any pollutant of running gets between dynamic and static ring; Realized the effective sealing of running shaft and the purpose of zero leakage fully, protection bearing safety, and also structure is extremely simple; Do not have fastening piece, process and assemble very convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein: 1, axle 2, auxiliary seal ring 3, rotating ring 4, stationary ring plug 5, auxiliary seal ring 6, gland 7, permanent magnet 8, stationary ring 9, fluid dynamic pressure groove 10, rotating ring 11, auxiliary seal ring.
Embodiment
As shown in Figure 1, the present invention includes stationary ring 8, rotating ring 3 and 10, said rotating ring 3,10 is installed in said stationary ring 8 both sides respectively symmetry, and said rotating ring 3 all is processed with fluid dynamic pressure groove 9 with 10 outer rim, is installed with permanent magnet 7 in the said stationary ring 8, and with 4 obstructions of stationary ring plug; Stationary ring 8 is fixed on the gland 6 because of insert permanent magnet 7 produces suction, has eliminated the influence of gravity, makes that the gap between stationary ring 8 and the axle 1 has not had high requirement; Simplified processing and assembling, when vibrating, can not rub, between stationary ring 8 and the gland 6 auxiliary seal ring 5 has been installed at the diameter of axle; Under suction, make auxiliary seal ring 5 compress and produce sealing, said rotating ring 3 and 10 all adopts magnetic material, under the magnetic attraction effect and the generation radial seal of combining closely of the end face of stationary ring 8; Its junction plane is the very high minute surface of planeness, and said rotating ring 3 and 10 outer rim are processed with fluid dynamic pressure groove 9, because the centrifugal force that axle 1 rotation produces; With the dust of atmosphere one side and the steam sealing surface that blows off, with the lubricant oil of the lubricant oil one side sealing surface of dishing out, said rotating ring 3 and 10 is symmetrically distributed in the both sides of stationary ring 8; When axial left and right displacement takes place in axle 1; Always there is a sealing surface to combine closely, guarantees the reliability of sealing, and be separately installed with auxiliary seal ring 2,11 between rotating ring 3,10 and the axle 1; In order to the perpendicularity deviation of compensating shaft 1, make sealing surface not produce error and depart from gland 6 end faces.
The above; Be merely the preferable embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or change according to technological scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (3)
1. agravic dynamic pressure groove magnetic shaft sealing device; It is characterized in that: comprise stationary ring (8), rotating ring (3), (10); Said rotating ring (3), (10) are installed in said stationary ring (8) both sides symmetry respectively; The outer rim of said rotating ring (3) and (10) is processed with fluid dynamic pressure groove (9), and said stationary ring (8) is provided with permanent magnet (7).
2. agravic dynamic pressure groove magnetic shaft sealing device as claimed in claim 1, it is characterized in that: said permanent magnet (7) is installed in the stationary ring (8), and stops up with stationary ring plug (4).
3. agravic dynamic pressure groove magnetic shaft sealing device as claimed in claim 1; It is characterized in that: between said stationary ring (8) and the gland (6) auxiliary seal ring (5) is installed, between said rotating ring (3), (10) and the axle (1) auxiliary seal ring (2), (11) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270653A CN102644744A (en) | 2012-04-27 | 2012-04-27 | Agravic magnetic-force shaft seal device with dynamic grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270653A CN102644744A (en) | 2012-04-27 | 2012-04-27 | Agravic magnetic-force shaft seal device with dynamic grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102644744A true CN102644744A (en) | 2012-08-22 |
Family
ID=46657754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101270653A Pending CN102644744A (en) | 2012-04-27 | 2012-04-27 | Agravic magnetic-force shaft seal device with dynamic grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559425A (en) * | 2017-07-25 | 2018-01-09 | 盐城美希密封件有限公司 | A kind of compound sealing structure for being used for height and stirring machine closing road |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795168A (en) * | 1987-09-10 | 1989-01-03 | Durametallic Corporation | Magnetic seal assembly |
| US5730447A (en) * | 1995-10-26 | 1998-03-24 | Dawson; Stephen M. | Self-aligning magnetic rotary seal |
| FR2912797A1 (en) * | 2007-02-19 | 2008-08-22 | Turbomeca Sa | Magnetic sealing joint for use in helicopter, has grooves arranged between joint parts during rotation of one part with respect to another, and magnetic units arranged such that parts are attracted towards each other |
| CN101392835A (en) * | 2007-09-18 | 2009-03-25 | 刘讯岐 | Opposition U-shaped surface magnetic mechanical seal |
| CN201434082Y (en) * | 2009-05-15 | 2010-03-31 | 天津西泰斯机械技术有限公司 | Internal structure of assembled type double end surface magnetic force oil seal |
| CN201496560U (en) * | 2009-09-10 | 2010-06-02 | 天津西泰斯机械技术有限公司 | Anti-rotation device in cartridge-type double-end surface magnetic oil sealing |
| CN202612648U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Zero-gravity dynamic pressure groove magnetic shaft sealing device |
-
2012
- 2012-04-27 CN CN2012101270653A patent/CN102644744A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795168A (en) * | 1987-09-10 | 1989-01-03 | Durametallic Corporation | Magnetic seal assembly |
| US5730447A (en) * | 1995-10-26 | 1998-03-24 | Dawson; Stephen M. | Self-aligning magnetic rotary seal |
| FR2912797A1 (en) * | 2007-02-19 | 2008-08-22 | Turbomeca Sa | Magnetic sealing joint for use in helicopter, has grooves arranged between joint parts during rotation of one part with respect to another, and magnetic units arranged such that parts are attracted towards each other |
| CN101392835A (en) * | 2007-09-18 | 2009-03-25 | 刘讯岐 | Opposition U-shaped surface magnetic mechanical seal |
| CN201434082Y (en) * | 2009-05-15 | 2010-03-31 | 天津西泰斯机械技术有限公司 | Internal structure of assembled type double end surface magnetic force oil seal |
| CN201496560U (en) * | 2009-09-10 | 2010-06-02 | 天津西泰斯机械技术有限公司 | Anti-rotation device in cartridge-type double-end surface magnetic oil sealing |
| CN202612648U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Zero-gravity dynamic pressure groove magnetic shaft sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559425A (en) * | 2017-07-25 | 2018-01-09 | 盐城美希密封件有限公司 | A kind of compound sealing structure for being used for height and stirring machine closing road |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1934474B1 (en) | Combined labyrinth seal and screw-type gasket bearing sealing arrangement | |
| KR20190108568A (en) | Sliding parts | |
| CN110168264A (en) | Slide unit | |
| US3326453A (en) | Gas-bearing assembly | |
| CN102878207B (en) | A kind of bearing pedestal seal device of rolling mill roll | |
| CN102588287B (en) | Mechanical sealing parts of Roots blower and lubricating method thereof | |
| CN201434075Y (en) | Assembled type double end surface mechanical seal device | |
| US10767751B2 (en) | Planetary gear device and vehicle wheel drive device | |
| CN201068983Y (en) | Contact type dry running mechanical sealing | |
| CN202392110U (en) | Shaft sealing device of horizontal scraper centrifuge | |
| CN202612648U (en) | Zero-gravity dynamic pressure groove magnetic shaft sealing device | |
| CN102644744A (en) | Agravic magnetic-force shaft seal device with dynamic grooves | |
| CN201417988Y (en) | Electromotor shaft end seal of straight-connection planetary cone-disk stepless speed variator | |
| CN216691893U (en) | Bearing box with mechanical seal | |
| CN205745307U (en) | A kind of compact mechanical sealing device of silicon carbide | |
| CN105485010A (en) | Magnetic sealing structure for drive end of roots pump | |
| CN204677489U (en) | Mechanical seal device | |
| CN210034422U (en) | Carbon ring type floating ring sealing device | |
| CN215334439U (en) | Mechanical sealing device | |
| CN203585327U (en) | Overload protection device for mechanical seal | |
| CN204271802U (en) | A kind of hermetically-sealed construction of dynamo oil lubrication rolling bearing end cap | |
| EP2511576B1 (en) | Seal arrangement | |
| CN214499810U (en) | Sealing device | |
| CN220749375U (en) | Improved sealing rotary joint for ironmaking single-roller rotor | |
| CN201416638Y (en) | Stepless speed changer shaft end seal of direct-connected speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant before: Dalian Huayang Seals Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN HUAYANG GUANGDA SEALING CO., LTD. TO: DALIAN HUAYANG SEALS CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |