CN101818800A - Top-in-type magnetic force transmission device - Google Patents
Top-in-type magnetic force transmission device Download PDFInfo
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- CN101818800A CN101818800A CN 201010154590 CN201010154590A CN101818800A CN 101818800 A CN101818800 A CN 101818800A CN 201010154590 CN201010154590 CN 201010154590 CN 201010154590 A CN201010154590 A CN 201010154590A CN 101818800 A CN101818800 A CN 101818800A
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Abstract
The invention relates to the technical field of magnetic force transmission, improving a traditional cantilever-type small-capacity top-in-type magnetic force transmission, in particular to a top-in-type magnetic force transmission device which is characterized in that a TB3 chebyshev sealing ring is arranged at the lower end of a transmission shaft supporting bearing, a pressure cover connected with a base center flange is arranged below the sealing ring, the transmission shaft is connected with a maze hood which is covers the pressure cover so that a maze structure is formed by the maze hood and the pressure cover to prevent particles from entering the sealing ring, and a multi-sheet-type safe clutch is connected between a reduction shaft and a container input shaft. The invention has the advantages of reliable bearing sealing, long service life, safe and reliable use and anti-slide magnetic coupling.
Description
[technical field] the present invention relates to technical field of magnetic transmission, is the improvement that has cantilever type, small capacity now, heads into the formula magnetic drives, a kind of top-in-type magnetic force transmission device.
[background technique] magnetic drive device can be realized positive confinement under the nominal situation condition, but under following situation, can leak (seeing " magnetic drive pump most common failure and monitoring "): (1) short-term overload, driver generation slippage: at this moment, prime mover turns round continuously, working machine stops, and magnet produces high temperature under positive counter magnetic field alternation effect, as untimely shutdown, a few minutes can make the overheated demagnetization of magnet, cause the permanent damage of driver; (2) ferromagnetic substance or particle deposition are in interior magnet rotor and separation sleeve gap in the fluid, and make separation sleeve wearing and tearing and magnet of a specified duration demagnetize.In a single day crackle takes place separation sleeve or the mill leakage can bringing on a disaster property consequence.
The formula of heading into is to use wider magnetic stirring apparatus at present, and mainly there is following problems in it:
(1) Zhao Kezhong " the theoretical and design of magnetic coupling transmission device " is 180 pages: " depend on block bearing the running life of magnetic coupling transmission system."; Great Wall company " magnetic transmission application technical progress ": " problem such as the magnetic drive device performance is stable inadequately, and the still inner bearing life-span is short and restricting the development of magnetic drives.”。The still inner bearing life-span, short reason was that bearing seal is bad, " bearing seal is weak link in the magnetic drives " (Liu Kai " design of isooctyl acid magnetic drives pyroreaction still ").Why bearing seal be that the reason of weak link is: selected Sealing does not possess wearing and tearing back automatic compensation function in the background technique; (2) lack safety reliability: Zhao Kezhong " Drive Technology and equipment " 110 pages: " when transshipping or blocking, then the driving and driven male part of magnetic driver can slippage generation relative movement.Be in the effect of alternating magnetic field; to produce eddy current loss, hysteresis loss and residual loss; the major part of these losses changes heat energy into and causes that magnet temperature raises; the phenomenon of demagnetizing can appear when surpassing allowable work temperature; as untimely shutdown; a few minutes can make the overheated demagnetization of magnet, cause the permanent damage of driver.", unsafe reason is not install in the background technique safety clutch.
It is a kind of safe in utilization, reliable that [summary of the invention] the object of the invention is to provide, not slippage of magnetic coupling, and bearing seal is reliable, the top-in-type magnetic force transmission device of long service life.。
[technological scheme] technical solution of the present invention is as follows:
(a) the internal rotor block bearing seals with Che Shi TB3 rotary seal (Cheng Daxian " mechanical design handbook " volume 3.14-306 page or leaf).TB3 profile of tooth slip ring combination seal is specifically designed to high speed rotating sealing position in the Che Shi sealing, is made up of thin lips and teeth shape slip ring+O type circle, and the slip ring crown is bordering on the line contact with contacting of surface of revolution, can significantly reduce the frictional heat that high speed rotating produces.The thin lip rigidity of slip ring is little, and O type circle is tightened in slip surface the thin lip of slip ring, and the slip surface oil film is very thin, is generally 0.001-0.0025, a lubricate, and unlikely being scraped becomes to drip (leakage); The elastic force of O type circle makes the line contact sealing surface wear be able to mend automatically make it be slightly smaller than the magnet rotor driving torque.During when the magnet rotor overload or by card, clutch just skids, and the outer steel rotor does not change, and has avoided the slippage of interior magnet steel rotor.One cover moment of torsion is the 1100Nm magnetic drive device, its price is (Xu Deqin " development and the application of 2000L high-pressure magnetic still ") up to 150,000 yuan, therefore the device safety clutch ensures safety in production, prevents that accident is very important on the magnetic force reactor, has very high economic value.
[beneficial effect] be reliable, the long service life of bearing seal (a); (b) safe and reliable, not slippage of magnetic coupling.
[description of drawings] Fig. 1. embodiment of the invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of top-in-type magnetic force transmission device is meant by support (4), separation sleeve (5), outer steel assembly (6), interior magnet steel assembly (8), base (9) and form with the transmission shaft (11) that bearing (7) is bearing in the base endoporus, wherein: support connects separation sleeve successively, base and vessel flange, the shaft extension end of the endoporus hitch receptacle input shaft (3) of outer steel assembly cylinder axle journal, the axle journal cylindrical is bearing in support (4) endoporus with bearing, it is characterized in that: a TB3 Che Shi seal ring (10) is arranged in cardan-shaft suspension bearing (7) lower end, a gland (12) that is bound up on base (9) center flange is arranged under the seal ring, transmission shaft (11) is gone up and is connect a labyrinth (13), labyrinth covers gland (12), make labyrinth and gland form labyrinth structure, prevent that particulate matter from entering seal ring.
TB3 Che Shi seal ring is called profile of tooth slip ring combination seal again, form by thin lip, profile of tooth slip ring+O type circle, wherein: the material of profile of tooth slip ring is the polymer of polytetrafluoroethylene (PTFE) and copper powder, carbon fibre, molybdenum disulfide, silica, cadmium oxide etc., has mechanical strength height, wear-resisting, excellent physical properties such as friction factor is little; The effect of O type circle is, relies on its elastic force to make to be bordering on the sealing surface wear of line contact to be able to automatic compensation, and test shows is more than 20 times of existing seal ring its working life.The working pressure 0-40Mpa of TB3 rotary seal, operating temperature-55-250 ℃, v=10m/s can be widely used in various reactors.
Described top-in-type magnetic force transmission device, there are two TB3 seal rings block bearing (7) lower end.This is because a back pressure is very little in two string dress seal rings, thereby improves sealability and increase the service life.
Described top-in-type magnetic force transmission device connects clutch (1) between deboost axle (2) and container input shaft (3).After be slightly smaller than the magnet rotor driving torque, during when the magnet rotor overload or by card, clutch just skids with the torque adjustment of clutch, and the outer steel rotor does not change, and has avoided the slippage of interior magnet steel rotor.
Described clutch is safety clutch (1).
Described safety clutch is multidisc safety clutch (1), and multidisc is simple in structure, easy to adjust.
A kind of embodiment is to explanation of the present invention, is not limitation of the invention, and the scheme after any simple transformation all belongs to protection scope of the present invention.
Claims (6)
1. a top-in-type magnetic force transmission device is meant by support (4), separation sleeve (5), outer steel assembly (6), interior magnet steel assembly (8), base (9) and with the transmission shaft (11) that bearing (7) is bearing in the base endoporus and forms, wherein: support connects separation sleeve, base and vessel flange successively, the shaft extension end of the endoporus hitch receptacle input shaft (3) of outer steel assembly cylinder axle journal, the axle journal cylindrical is bearing in support (4) endoporus with bearing, it is characterized in that:
In cardan-shaft suspension bearing (7) lower end a TB3 Che Shi seal ring (10) is arranged, a gland (12) that is bound up on base (9) center flange is arranged under the seal ring.
2. top-in-type magnetic force transmission device according to claim 1 is characterized in that: transmission shaft (11) is gone up and is connect a labyrinth (13), and labyrinth covers gland (12).
3. top-in-type magnetic force transmission device according to claim 2 is characterized in that: in cardan-shaft suspension bearing (7) lower end two TB3 Che Shi seal rings are arranged.
4. according to claim 2 or 3 described top-in-type magnetic force transmission devices, it is characterized in that: between deboost axle (2) and container input shaft (3), connect clutch (1).
5. a kind of top-in-type magnetic force transmission device according to claim 4 is characterized in that: described clutch is safety clutch (1).
6. top-in-type magnetic force transmission device according to claim 5 is characterized in that: described safety clutch is multidisc safety clutch (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154590 CN101818800A (en) | 2010-03-26 | 2010-03-26 | Top-in-type magnetic force transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154590 CN101818800A (en) | 2010-03-26 | 2010-03-26 | Top-in-type magnetic force transmission device |
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| Publication Number | Publication Date |
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| CN101818800A true CN101818800A (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010154590 Pending CN101818800A (en) | 2010-03-26 | 2010-03-26 | Top-in-type magnetic force transmission device |
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| CN (1) | CN101818800A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117686A (en) * | 2013-03-07 | 2013-05-22 | 包头稀土研究院 | Coupler |
| CN104653747A (en) * | 2013-11-20 | 2015-05-27 | 鸿富锦精密工业（深圳）有限公司 | Accelerating and decelerating device |
| CN112398305A (en) * | 2020-11-09 | 2021-02-23 | 上海海事大学 | Stirrer full-sealed permanent magnet transmission device for laboratory |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6169365A (en) * | 1984-09-12 | 1986-04-09 | Hitachi Ltd | Magnetic coupling joint |
| CN2649875Y (en) * | 2003-09-19 | 2004-10-20 | 贵州航天凯山石油仪器有限公司 | Sealed drive device |
| CN101306336A (en) * | 2007-05-17 | 2008-11-19 | 吴小杰 | Energy saving high-temperature high-pressure reaction kettle agitating apparatus |
| CN201160381Y (en) * | 2007-08-31 | 2008-12-10 | 柳州市汉森机械制造有限公司 | Power transmission for peeling leaf of cane cutting machine |
| CN101325360A (en) * | 2008-07-14 | 2008-12-17 | 大连理工大学 | Magnetic force driver |
| WO2009087409A1 (en) * | 2008-01-11 | 2009-07-16 | Magnomatics Limited | Drives for sealed systems |
| CN201332350Y (en) * | 2008-12-10 | 2009-10-21 | 威海化工机械有限公司 | High pressure magnetic driving device |
-
2010
- 2010-03-26 CN CN 201010154590 patent/CN101818800A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6169365A (en) * | 1984-09-12 | 1986-04-09 | Hitachi Ltd | Magnetic coupling joint |
| CN2649875Y (en) * | 2003-09-19 | 2004-10-20 | 贵州航天凯山石油仪器有限公司 | Sealed drive device |
| CN101306336A (en) * | 2007-05-17 | 2008-11-19 | 吴小杰 | Energy saving high-temperature high-pressure reaction kettle agitating apparatus |
| CN201160381Y (en) * | 2007-08-31 | 2008-12-10 | 柳州市汉森机械制造有限公司 | Power transmission for peeling leaf of cane cutting machine |
| WO2009087409A1 (en) * | 2008-01-11 | 2009-07-16 | Magnomatics Limited | Drives for sealed systems |
| CN101325360A (en) * | 2008-07-14 | 2008-12-17 | 大连理工大学 | Magnetic force driver |
| CN201332350Y (en) * | 2008-12-10 | 2009-10-21 | 威海化工机械有限公司 | High pressure magnetic driving device |
Non-Patent Citations (1)
| Title |
|---|
| 《化工机械》 20001231 李建中 等 小型磁力传动搅拌釜的设计与应用 第336-338页 1-6 第27卷, 第6期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117686A (en) * | 2013-03-07 | 2013-05-22 | 包头稀土研究院 | Coupler |
| CN104653747A (en) * | 2013-11-20 | 2015-05-27 | 鸿富锦精密工业（深圳）有限公司 | Accelerating and decelerating device |
| CN112398305A (en) * | 2020-11-09 | 2021-02-23 | 上海海事大学 | Stirrer full-sealed permanent magnet transmission device for laboratory |
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Application publication date: 20100901 |