CN103486276A - Mechanical seal - Google Patents
Mechanical seal Download PDFInfo
- Publication number
- CN103486276A CN103486276A CN201310423308.2A CN201310423308A CN103486276A CN 103486276 A CN103486276 A CN 103486276A CN 201310423308 A CN201310423308 A CN 201310423308A CN 103486276 A CN103486276 A CN 103486276A
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- China
- Prior art keywords
- ring
- seat
- spring
- moving ring
- rotating
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- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention relates to a mechanical seal and belongs to the field of seals. The mechanical seal comprises a shaft sleeve, a moving ring component and a fixed ring. The moving ring component comprises a spring holder, a moving ring holder and a moving ring. The spring holder is fixed on the shaft sleeve. A spring is disposed inside the spring holder and connected with the moving ring holder. The moving ring holder is tightly attached to the inner wall of the spring holder. The moving ring is fixed on the moving ring holder and is magnetic. The moving ring is in rotatable contact with the fixed ring which is magnetic. The spring is tensioned. Compared with the prior art, the mechanical seal has the advantages that the moving ring is kept tightly attached to the fixed ring constantly when the mechanical seal operates, tightness of the mechanical seal is maintained, and leakage is prevented; the moving ring and the fixed ring are kept under proper pressure, and over-wear between the moving ring and the fixed ring is avoided.
Description
Technical field
The invention belongs to the Sealing field, especially relate to a kind of mechanical bearing Sealing.
Background technique
The very high running shaft end at a few thing rotating speed, used the mode of mechanical seal more and more.Mechanical seal is compared with traditional soft packing seal, and it is lightweight, and shared space is less, and will grow working life a lot; Mechanical seal is compared with traditional labyrinth seal, and its size is compacter, easy for installation, reliability is high, can be good at meeting the seal request of high-speed drive component.At present, the structure that mechanical seal adopts is that rotating ring and stationary ring match substantially, and stationary ring forbids, rotating ring is with the running shaft rotation and seal with the stationary ring veneer.But there is obvious defect in existing mechanical sealing element, the one, due to the end contact imprecision of processing reason rotating ring and stationary ring, easily cause auspicious China to have oil to leak or poorly sealed close problem; The 2nd, because rotating ring and stationary ring are wanted to rotate relative to veneer, the time one is long, and the end face of rotating ring and stationary ring just easily is worn, and causes seal failure.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of mechanical sealing element is provided, can in the mechanical sealing element working procedure, at every moment allow rotating ring be close to stationary ring, keep the sealing of mechanical sealing element, prevent from revealing.Can allow rotating ring and stationary ring keep suitable pressure, avoid the excessive wear between rotating ring and stationary ring simultaneously.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals, a kind of mechanical sealing element, comprise axle sleeve, the described moving ring assembly of moving ring assembly and stationary ring comprises spring seat, rotating seat and rotating ring, described spring seat is fixed on axle sleeve, be provided with spring in described spring seat, described spring is connected with described rotating seat, described rotating seat fits tightly described spring seat inwall, described rotating ring is fixed on described rotating seat, described rotating ring has magnetic, described rotating ring rotates contact described stationary ring, described stationary ring has magnetic, described spring is in extended state.Arrange like this, rotating ring has magnetic, and stationary ring is also that magnetic material is made, rotating ring and stationary ring will be under the effect of magnetic force fitting together tightly.Be provided with spring seat on axle sleeve, be provided with spring in spring seat, rotating seat is placed in spring seat and the rotating seat sidewall is close to the spring seat inwall, and the rotating seat bottom is connected with spring.Rotating ring is arranged on rotating seat.Spring is all the time in extended state, and so under the effect of spring, what Magnetic Phase sucked close iron can't excessive compression, causing the wearing and tearing aggravation.Rotating ring and stationary ring can fit tightly in use under the effect of magnetic always, and spring is held rotating seat all the time simultaneously, avoids rotating ring and stationary ring over-stressed.
In technique scheme, preferred, described spring seat inwall is provided with the vertical projection of several average circle distribution, and described rotating seat outer surface is provided with the vertical groove matched with described vertical projection.Arrange like this, be provided with the vertical projection of several average circle distribution on the spring seat inwall, the rotating seat outer surface is provided with and the mutually close-fitting vertical groove of these projections.Vertically projection is not touched the spring seat top simultaneously, and vertical groove does not touch the rotating seat top.Have so better sealing between spring seat and rotating seat, rotating seat also can better be fixed on spring seat simultaneously.
In technique scheme, preferred, be provided with several annular grooves on described rotating seat, be provided with O type circle on described annular groove, described O type circle is closely fitted with described spring seat inwall.Arrange like this, at the rotating seat inner and outer surface, be respectively arranged with two relative annular grooves, lay O type circle in annular groove.Can guarantee the sealing between spring seat and rotating seat.
In technique scheme, preferred, described rotating ring material is the Rare-Earth Cobalt magnetically hard alloy.Arrange like this, the Rare-Earth Cobalt magnetically hard alloy is permanent magnet, and magnetic can not disappear.
In technique scheme, preferred, described stationary ring material is tungsten nickel iron alloy.Arrange like this, tungsten nickel iron alloy is magnetic material, can have been attracted by the magnetic magnet of tool.
Compared with prior art, the invention has the beneficial effects as follows: can in the mechanical sealing element working procedure, at every moment allow rotating ring be close to stationary ring, keep the sealing of mechanical sealing element, prevent from revealing.Can allow rotating ring and stationary ring keep suitable pressure, avoid the excessive wear between rotating ring and stationary ring simultaneously.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is spring seat of the present invention and rotating seat cross-section schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Referring to shown in Fig. 1 to Fig. 2: a kind of mechanical sealing element comprises axle sleeve 2, spring seat 3, rotating seat 4, rotating ring 7, stationary seat 9 and stationary ring 8.Axle sleeve 2 is fixed on bearing 1, and spring seat 3 is arranged on axle sleeve 2, is provided with several spacings in spring seat 3 and equates the vertical protruding 10 of circle distribution, and vertically certain distance is arranged at protruding 10 distance from top spring seat 3 tops.Be placed with spring 5 in spring seat 3, be connected with rotating seat 4 on spring 5, rotating seat 4 bottoms are provided with and vertical protruding 10 vertical grooves that match 12, and rotating seat 4 top inner and outer surface are respectively arranged with two annular grooves 11.Vertically projection 10 closely reclines with vertical groove 12, and vertically projection 10 also can be fixed spring simultaneously, makes spring be difficult for rocking.Be embedded with O type circle 13 on annular groove 11, O type circle 13 fits tightly spring seat 3 inwalls, can guarantee like this sealing between spring seat 3 and rotating seat 4.Be provided with rotating ring 7 on rotating seat 4.Rotating ring 7 is that Rare-Earth Cobalt magnetically hard alloy material is made, and the Rare-Earth Cobalt magnetically hard alloy is a kind of permanent magnet, allows the Rare-Earth Cobalt magnetically hard alloy magnetize, and the Rare-Earth Cobalt magnetically hard alloy has the magnetic of using; Be provided with stationary ring 8 on stationary seat 9, stationary ring 8 is that the tungsten nickel iron alloy material is made, and through texturing processing and heat treated tungsten nickel iron alloy, has higher intensity and moulding, and tungsten nickel iron alloy also has certain ferromagnetism simultaneously, can be attracted by magnetic material; Rotating ring 7 and stationary ring 8 are close together by magnetic.Because magnetic force between rotating ring 7 and stationary ring 8 is larger, too fit tightly wearing and tearing aggravation while making rotating ring 7 and stationary ring 8 relative movement, spring 5 is set in extended state, at this moment 5 pairs of rotating seats of spring in spring seat 34 produce pulling force, make pressure between rotating ring 7 and stationary ring 8 in suitable state.
Claims (5)
1. a mechanical sealing element, comprise axle sleeve (2), moving ring assembly and stationary ring (9), it is characterized by, described moving ring assembly comprises spring seat (3), rotating seat (4) and rotating ring (7), described spring seat (3) is fixed on axle sleeve (2), be provided with spring (5) in described spring seat (3), described spring (5) is connected with described rotating seat (4), described rotating seat (4) fits tightly described spring seat (3) inwall, described rotating ring (7) is fixed on described rotating seat (4), described rotating ring (7) has magnetic, described rotating ring (7) rotates contact described stationary ring (9), described stationary ring (9) has magnetic, described spring (5) is in extended state.
2. a kind of mechanical sealing element according to claim 1, it is characterized by, described spring seat (3) inwall is provided with the vertical projection (10) of several average circle distribution, and described rotating seat (4) outer surface is provided with the vertical groove (12) matched with described vertical projection (10).
3. a kind of mechanical sealing element according to claim 1, it is characterized by, be provided with several annular grooves (11) on described rotating seat (4), be provided with O type circle (13) on described annular groove (11), described O type circle (13) is closely fitted with described spring seat (3) inwall.
4. a kind of mechanical sealing element according to claim 1, is characterized by, and described rotating ring (7) material is the Rare-Earth Cobalt magnetically hard alloy.
5. a kind of mechanical sealing element according to claim 1, is characterized by, and described stationary ring (9) material is tungsten nickel iron alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423308.2A CN103486276B (en) | 2013-09-17 | 2013-09-17 | A kind of mechanical sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423308.2A CN103486276B (en) | 2013-09-17 | 2013-09-17 | A kind of mechanical sealing element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103486276A true CN103486276A (en) | 2014-01-01 |
| CN103486276B CN103486276B (en) | 2016-04-27 |
Family
ID=49826750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310423308.2A Active CN103486276B (en) | 2013-09-17 | 2013-09-17 | A kind of mechanical sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486276B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405883A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Mechanical sealing element |
| CN104404270A (en) * | 2014-11-09 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Tank sealed device of magnesium smelting high-pressure slag-removing and charging machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869135A (en) * | 1973-03-27 | 1975-03-04 | Ksb Kernkraftwerkspumen Gmbh | Controlled leakage face type shaft seal |
| CN2101141U (en) * | 1991-10-14 | 1992-04-08 | 沈阳水泵厂 | Magnetic machinery sealing |
| EP1835207A1 (en) * | 2006-03-14 | 2007-09-19 | Voith Patent GmbH | Shaft sealing |
| CN101852295A (en) * | 2009-03-30 | 2010-10-06 | 江苏华阳重工科技股份有限公司 | High-sealability mechanical sealing device |
| CN102261476A (en) * | 2011-06-02 | 2011-11-30 | 温州市天成密封件制造有限公司 | Flexible seal system |
| CN202971937U (en) * | 2012-12-12 | 2013-06-05 | 山东荣利中石油机械有限公司 | Magnetic mechanically sealing device |
| CN203500476U (en) * | 2013-09-17 | 2014-03-26 | 宁波市镇海声光密封件厂(普通合伙) | Mechanical sealing member |
-
2013
- 2013-09-17 CN CN201310423308.2A patent/CN103486276B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869135A (en) * | 1973-03-27 | 1975-03-04 | Ksb Kernkraftwerkspumen Gmbh | Controlled leakage face type shaft seal |
| CN2101141U (en) * | 1991-10-14 | 1992-04-08 | 沈阳水泵厂 | Magnetic machinery sealing |
| EP1835207A1 (en) * | 2006-03-14 | 2007-09-19 | Voith Patent GmbH | Shaft sealing |
| CN101852295A (en) * | 2009-03-30 | 2010-10-06 | 江苏华阳重工科技股份有限公司 | High-sealability mechanical sealing device |
| CN102261476A (en) * | 2011-06-02 | 2011-11-30 | 温州市天成密封件制造有限公司 | Flexible seal system |
| CN202971937U (en) * | 2012-12-12 | 2013-06-05 | 山东荣利中石油机械有限公司 | Magnetic mechanically sealing device |
| CN203500476U (en) * | 2013-09-17 | 2014-03-26 | 宁波市镇海声光密封件厂(普通合伙) | Mechanical sealing member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404270A (en) * | 2014-11-09 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Tank sealed device of magnesium smelting high-pressure slag-removing and charging machine |
| CN104405883A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Mechanical sealing element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486276B (en) | 2016-04-27 |
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Effective date of registration: 20170615 Address after: Shi Qing village Huilong town of Qidong city 226500 Jiangsu city of Nantong Province Patentee after: Qidong clear fruit and vegetable land shares cooperatives Address before: 315000, Zhejiang, Ningbo province Crab Industry Development Zone Patentee before: Ningbo Zhenhai Acoustic-Optic Seal Factory |
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| TR01 | Transfer of patent right |