CN2620799Y - Magnetic liquid sealing device with magnetic liquid tank for sealing oil - Google Patents
Magnetic liquid sealing device with magnetic liquid tank for sealing oil Download PDFInfo
- Publication number
- CN2620799Y CN2620799Y CN 03235085 CN03235085U CN2620799Y CN 2620799 Y CN2620799 Y CN 2620799Y CN 03235085 CN03235085 CN 03235085 CN 03235085 U CN03235085 U CN 03235085U CN 2620799 Y CN2620799 Y CN 2620799Y
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- China
- Prior art keywords
- magnetic liquid
- magnetic
- oil
- sealing
- liquid tank
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- Expired - Lifetime
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a magnetic liquids sealing device for oil sealing, and is used mainly in moving seal of rotating shafts of gear boxes or other likely devices. The utility model comprises mainly a nonmagnetic outer cover, a static seal ring, an injection channel, a choke plug, a magnet, a soft iron, an anti-conduction spacing ring, aliphatic magnetic liquids, a magnetic liquids reservoir, oleophobic magnetic liquids and so on. By providing the oleophobic magnetic liquids, the injection channel, the magnetic liquids reservoir and the anti-conduction spacing ring, the utility model ensures that the sealing device is characterized in no leakage, self-lubrication and long service life.
Description
Affiliated technical field
The utility model relates to a kind of liquid sealing device, particularly a kind of oil sealing magnetic fluid seal device that need add magnetic liquid hardly again.
Technical background
During operations such as a lot of industry equipments such as gearbox, blower fan, all need to add lubricant oil and come maintenance equipment to run well.The general now modes such as reinforced seal, O RunddichtringO, packing_seal, labyrinth seal that adopt, the friction between existence and the axle is big, and working life is not long, shortcomings such as leakage of oil often occur.In today of factory's pay attention to day by day cleaner production, pressed for better sealing way.In some equipment, began to adopt mechanical seal device afterwards, but, can cause the damage of sealing surface, caused seal failure in the big occasion of vibration.Along with the exploitation of magnetic liquid is goed deep into, on equipment such as gearbox, begin to adopt magnetic fluid seal device.
Chinese patent CN2509386Y for a kind of magnetic liquid oil sealer, has the effect of better seal machine oil.But still there are some shortcomings.Up to now, also developed the magnetic liquid of hating oil fully without any a tame unit, the so-called magnetic liquid that contact with oil for and oily do not react hate the oil base magnetic liquid, be in fact comparatively speaking hate oil, the loss to some extent of magnetic liquid.And this patent does not have corresponding liquid-adding device, because in the design, the magnetic liquid space was just little originally, the loss of magnetic liquid must influence its working life.
Summary of the invention
At the deficiency that above-mentioned magnetic liquid oil sealer exists, the novel oil sealing magnetic fluid seal device that provides a kind of with magnetic liquid tank of this use.This device is provided with a liquid-adding device contacting a side with oil, and an anti-conducting spacer ring is set in the magnet inboard, innerly constitutes a magnetic liquid tank, has a certain amount of storage liquid ability.When the oily magnetic liquid of hating of oil sealing end was lossy, this magnetic liquid tank can provide additional magnetic liquid at any time, thereby guaranteed effect and long-life requirement of magnetic fluid sealing.
The utility model solves its technical problem and is achieved by the following technical solution, and it is mainly by non magnetic overcoat, static seal circle, magnetic liquid injection channel, plug, magnet, soft iron, anti-conducting spacer ring, magnetic liquid tank, fat based magnetic liquid with hate oil base magnetic liquid etc. to constitute.Magnet, soft iron (band pole shoe) form the high air gap of magnetic intensity with the magnetic axle, are attracted to this when magnetic liquid injects, and form O shape circle, play the effect of magnetic fluid sealing running shaft.It is the minimum fat base magnetic liquid of volatility that oil base magnetic liquid, the other end are hated in the end injection that contacts with oil.When hating oil base magnetic liquid lossy, the magnetic liquid in the magnetic liquid tank can be drawn onto pole shoe automatically, can guarantee the sealing effect of magnetic liquid for a long time.
Advantage of the present utility model is that under the situation of the magnetic liquid of also not hating oil fully, this device can replenish the magnetic liquid of hating oil relatively automatically, forms intact magnetic liquid O shape circle, and Sealing is long service time.In addition, also have characteristics such as not having wearing and tearing, selflubricating.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1. non magnetic overcoat, 2. static seal circle, 3. plug, 4. injection channel, 5. magnet, 6. anti-conducting spacer ring, 7. soft iron, 8. magnetic liquid tank is 9. hated the oil base magnetic liquid, 10. fat based magnetic liquid, 11. magnetic axles.
Embodiment
In Fig. 1, needing the axle of sealing is magnetic axle (11), the soft iron (7) of it and magnet (5) and band pole shoe forms the air gap with highfield, add fat based magnetic liquid (10) near air one end, be provided with an anti-conducting spacer ring (6) in the inside of magnet (5), spacer ring inside surrounds one with magnetic axle (11) and can hold a certain amount of magnetic liquid tank (8).Near on the soft iron (7) of oil sealing end, have injection channel (4), an end is connected with magnetic liquid tank (8), and the other end extends on the non magnetic overcoat (1) always.At the pole shoe position of this part soft iron, fill and hate oil base magnetic liquid (9).The port of injection channel (4) is provided with the plug (3) of being with the silk mouth.(hate oil base) after adding magnetic liquid, available unsintered tape twines plug, and injection channel (4) are blocked up.Fat based magnetic liquid (10) directly adopts injector to inject from the outside.On the surface of contact of non magnetic overcoat (1) and the soft iron that has injection channel (4) part, and on non magnetic overcoat and the face that apparatus body contacts, be provided with static seal circle (2).
Claims (2)
1. oil sealing magnetic fluid seal device with magnetic liquid tank, it by non magnetic overcoat (1), static seal circle (2), magnet (5), soft iron (6), fat based magnetic liquid (10), hate oil base magnetic liquid formations such as (9), it is characterized in that: in the close soft iron (7) of oil sealing one end, have a magnetic liquid injection channel (4), passage one end extends to non magnetic overcoat (1) always, and being provided with plug (3), the other end leads to the magnetic liquid tank (8) that can hold a certain amount of magnetic liquid.
2. according to the described a kind of oil sealing magnetic fluid seal device of claim (1), it is characterized in that between magnetic liquid tank (8) and magnet (5) that being provided with a cross section is L shaped anti-conducting spacer ring (6) with magnetic liquid tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235085 CN2620799Y (en) | 2003-06-25 | 2003-06-25 | Magnetic liquid sealing device with magnetic liquid tank for sealing oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235085 CN2620799Y (en) | 2003-06-25 | 2003-06-25 | Magnetic liquid sealing device with magnetic liquid tank for sealing oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620799Y true CN2620799Y (en) | 2004-06-16 |
Family
ID=34249548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235085 Expired - Lifetime CN2620799Y (en) | 2003-06-25 | 2003-06-25 | Magnetic liquid sealing device with magnetic liquid tank for sealing oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620799Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799073A (en) * | 2010-04-06 | 2010-08-11 | 冯玉柱 | Mechanical seal using oil and gas |
| CN102966829A (en) * | 2012-11-20 | 2013-03-13 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN103925370A (en) * | 2014-04-29 | 2014-07-16 | 北京交通大学 | Magnetic liquid sealing device using magnetic grease |
| CN106402399A (en) * | 2016-10-25 | 2017-02-15 | 北京交通大学 | Magnetic liquid sealing device capable of reducing magnetic liquid evaporation |
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110206891A (en) * | 2019-07-07 | 2019-09-06 | 南京林业大学 | Split mechanical seal magnetic liquid auxiliary seal ring |
| CN110219990A (en) * | 2019-07-07 | 2019-09-10 | 南京林业大学 | The pump for liquid salts Split mechanical seal of subdivision ring connection INTERFACE MAGNETISM hydraulic seal |
| CN112112970A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112728106A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device for sealing liquid |
| CN113154046A (en) * | 2021-04-26 | 2021-07-23 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
-
2003
- 2003-06-25 CN CN 03235085 patent/CN2620799Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799073A (en) * | 2010-04-06 | 2010-08-11 | 冯玉柱 | Mechanical seal using oil and gas |
| CN102966829A (en) * | 2012-11-20 | 2013-03-13 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN102966829B (en) * | 2012-11-20 | 2015-02-25 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN103925370A (en) * | 2014-04-29 | 2014-07-16 | 北京交通大学 | Magnetic liquid sealing device using magnetic grease |
| CN103925370B (en) * | 2014-04-29 | 2016-01-20 | 北京交通大学 | Add the magnetic fluid seal device of magnetic fat |
| CN106402399A (en) * | 2016-10-25 | 2017-02-15 | 北京交通大学 | Magnetic liquid sealing device capable of reducing magnetic liquid evaporation |
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110206891A (en) * | 2019-07-07 | 2019-09-06 | 南京林业大学 | Split mechanical seal magnetic liquid auxiliary seal ring |
| CN110219990A (en) * | 2019-07-07 | 2019-09-10 | 南京林业大学 | The pump for liquid salts Split mechanical seal of subdivision ring connection INTERFACE MAGNETISM hydraulic seal |
| CN112112970A (en) * | 2020-10-30 | 2020-12-22 | 清华大学 | Magnetic liquid sealing device |
| CN112112970B (en) * | 2020-10-30 | 2021-04-20 | 清华大学 | Magnetic liquid sealing device |
| CN112728106A (en) * | 2020-12-31 | 2021-04-30 | 清华大学 | Magnetic liquid sealing device for sealing liquid |
| CN113154046A (en) * | 2021-04-26 | 2021-07-23 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
| CN113154046B (en) * | 2021-04-26 | 2022-07-05 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
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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: SICHUAN METALLURGICAL ENVIRONMENT + ENERGY ENGINEE Free format text: FORMER NAME: HUANXIANG SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD., CHENGDU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610041, No. 4, 20 South Renmin Road, Chengdu, Sichuan, Wuhou District Patentee after: Sichuan Demo-scimee Science and Technology Co., Ltd. Address before: 610041, No. 4, 20 South Renmin Road, Chengdu, Sichuan, Wuhou District Patentee before: Huanxiang Science & Technology Development Co., Ltd., Chengdu |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130625 Granted publication date: 20040616 |