CN202612648U - Zero-gravity dynamic pressure groove magnetic shaft sealing device - Google Patents
Zero-gravity dynamic pressure groove magnetic shaft sealing device Download PDFInfo
- Publication number
- CN202612648U CN202612648U CN 201220184451 CN201220184451U CN202612648U CN 202612648 U CN202612648 U CN 202612648U CN 201220184451 CN201220184451 CN 201220184451 CN 201220184451 U CN201220184451 U CN 201220184451U CN 202612648 U CN202612648 U CN 202612648U
- Authority
- CN
- China
- Prior art keywords
- dynamic pressure
- pressure groove
- ring
- stationary ring
- sealing device
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 9
- 239000000314 lubricant Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a zero-gravity dynamic pressure groove magnetic shaft sealing device, which comprises a stationary ring and movable rings, wherein the movable rings are symmetrically arranged on two sides of the stationary ring respectively; a fluid dynamic pressure groove is formed at the periphery of each movable ring; and a permanent magnet is arranged on the stationary ring. The zero-gravity dynamic pressure groove magnetic shaft sealing device has the characteristics that in a magnetic sealing mode, the movable rings and a rotary shaft synchronously work, so hidden danger in shaft abrasion is eliminated, requirements on a clearance between the rotary shaft and a fixed piece under the action of gravity are eliminated, any pollutant cannot enter the movable rings and the stationary ring during operation, the aims of effective sealing and zero leakage of the rotary shaft are completely fulfilled, the safety of a bearing is ensured, a fastener is eliminated, and the zero-gravity dynamic pressure groove magnetic shaft sealing device is quite simple in structure and convenient to process and assemble.
Description
Technical field
The utility model relates to the mechanical seal field, is specifically related to a kind of agravic dynamic pressure groove magnetic shaft sealing device, is 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.
The model utility content
The purpose of the utility model 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 utility model 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.
The characteristics of the utility model 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 the structural representation of the utility model.
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 utility model comprises stationary ring 8, rotating ring 3 and 10, and said rotating ring 3,10 is installed in said stationary ring 8 both sides respectively symmetry, and said rotating ring 3 and 10 outer rim all are processed with fluid dynamic pressure groove 9; Be installed with permanent magnet 7 in the said stationary ring 8, and stop up with stationary ring plug 4; 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 utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or changes according to the technological scheme of the utility model and model utility design thereof in the technical scope that the utility model discloses, and all should be encompassed within the protection domain of the utility model.
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) is installed in said stationary ring (8) both sides symmetry respectively; The outer rim of said rotating ring (3,10) 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 |
|---|---|---|---|
| CN 201220184451 CN202612648U (en) | 2012-04-27 | 2012-04-27 | Zero-gravity dynamic pressure groove magnetic shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220184451 CN202612648U (en) | 2012-04-27 | 2012-04-27 | Zero-gravity dynamic pressure groove magnetic shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612648U true CN202612648U (en) | 2012-12-19 |
Family
ID=47346349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220184451 Expired - Lifetime CN202612648U (en) | 2012-04-27 | 2012-04-27 | Zero-gravity dynamic pressure groove magnetic shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644744A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Agravic magnetic-force shaft seal device with dynamic grooves |
| CN105333153A (en) * | 2015-12-01 | 2016-02-17 | 李富立 | Magnetic force shaft sealing device and processing method thereof |
-
2012
- 2012-04-27 CN CN 201220184451 patent/CN202612648U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644744A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Agravic magnetic-force shaft seal device with dynamic grooves |
| CN105333153A (en) * | 2015-12-01 | 2016-02-17 | 李富立 | Magnetic force shaft sealing device and processing method thereof |
| CN105333153B (en) * | 2015-12-01 | 2017-02-01 | 李富立 | Magnetic force shaft sealing device and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DALIAN HUAYANG SEALS CO., LTD. Free format text: FORMER NAME: DALIAN HUAYANG GUANGDA SEALING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Patentee after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Patentee before: Dalian Huayang Seals Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |