CN102588602A - Composite sealing device for centrifugal machine bearing - Google Patents
Composite sealing device for centrifugal machine bearing Download PDFInfo
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- CN102588602A CN102588602A CN2012100222972A CN201210022297A CN102588602A CN 102588602 A CN102588602 A CN 102588602A CN 2012100222972 A CN2012100222972 A CN 2012100222972A CN 201210022297 A CN201210022297 A CN 201210022297A CN 102588602 A CN102588602 A CN 102588602A
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- bearing
- sealing
- main shaft
- rotary drum
- passage
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- Sealing Of Bearings (AREA)
- Centrifugal Separators (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a composite sealing device for a centrifugal machine bearing. The composite sealing device comprises a transmission cover (2), an outer bearing cover (3), a bearing seat (4), a bearing (5), an inner bearing cover (6), a sealing bracket (7) and a sealing gland (8) which are sequentially sleeved outside a centrifuge drum spindle (1); and a sealing element (9) is arranged between the sealing bracket (7) and the drum spindle (1), an airtight sealing passage (7.1) is arranged on the sealing bracket (7), the inner end of the airtight sealing passage (7.1) is pressed close to the outer surface of the drum spindle (1) and is located between the sealing element (9) and the sealing gland (8), and the outer end of the airtight sealing passage (7.1) is connected with a high-pressure air source (10). The composite sealing device provided by the invention can effectively prevent such harmful substances as ultra-fine hard powder, corrosive gas and the like from entering the bearing, and belongs to the technical field of the sealing device.
Description
Technical field
The invention belongs to the seal arrangement technical field, relate in particular to a kind of centrifuge associated sealing arrangement for bearings.
Background technique
Centrifuge is to utilize the centrifugation principle that suspension is got into rotary drum through supply pipe and spiral discharging mouth; Under the centrifugal action that high speed rotating produces; The solid phase particles that proportion is bigger is deposited on the drum inner wall, makes the solid phase particles that the helical blade of relative movement constantly will be deposited on the drum inner wall with rotary drum and scrapes and release slag exhausting mouth.Clear liquid after the separation flows out rotary drum through liquid layer regulator plate opening.
Along with the develop rapidly of industrial technology, the continuous expansion of the application industry of centrifuge, modern industry is also more and more harsher to the requirement of industrial centrifugal machine.Particularly in some industries such as chemical industry, pharmacy, the corrosive gas that its material evaporates also has some hard particles materials; Along with the rotating speed of centrifuge is increasingly high; In the engineering of centrifuge long-time running, because the variation of factors such as external pressure all can get into the main shaft bearing rotary component; Corrode and wear spindle bearing rotary component, have a strong impact on the working life of rotary components such as main shaft and bearing.Corrosive gas and hard particles material highlight the corrosion and the wearing and tearing of centrifuge principal axis bearing rotary component more, and general centrifuge contact type bearing seal mode can't satisfy industrial requirements.Therefore design and aly can prevent hard dust, the seal arrangement that harmful matters such as corrosive gas get into bearing is at present required.
Summary of the invention
The technical problem that the present invention will solve is, provides a kind of centrifuge principal axis that can improve to hold working life and seal degree, prevents atomic thin hard dust, and harmful matters such as corrosive gas get into the compound seal arrangement of centrifuge bearing of bearing.
The technological scheme that the present invention taked is; The compound seal arrangement of a kind of centrifuge bearing; It comprises transmission cover, bearing end cover, bearing support, bearing, internal bearing cover, sealed support and the sealing gland that is linked in successively outside the bowl main shaft; Be provided with seal element between sealed support and the rotary drum main shaft; Described sealed support is provided with a hermetic seal passage, and hermetic seal passage the inner presses close to the rotary drum outerface of spindle and between seal element and sealing gland, the outer end of hermetic seal passage is connected with high-pressure air source.
Described seal element spiral is on the rotary drum main shaft.
Described internal bearing cover is near being provided with oil sealing between seal element side and the rotary drum main shaft.
The invention has the beneficial effects as follows: when the present invention cooperates bowl work; Under the effect of high-pressure air source, produce gas; Get into the outer end of hermetic seal passage; The inner from the hermetic seal passage blows out then, owing between the inner of hermetic seal passage and the rotary drum outerface of spindle certain slit is arranged, and between the sealing gland and the rotary drum outerface of spindle certain slit is arranged also; Therefore in the middle of gas is blown out to the external world from the slit between the sealing gland and the rotary drum outerface of spindle; Can prevent effectively that so harmful matters such as atomic thin hard dust, corrosive gas from getting in the gap between the sealing gland and the rotary drum outerface of spindle, finally avoid harmful matters such as dust, corrosive gas to get into bearing, realize gas seal.What the present invention adopted is the gas seal mode, through injecting dry pressurized gas in hermetic seal passage external port, improves the air pressure in the Seal cage; Make the gas outflow, not only can prevent atomic thin hard dust, harmful matters such as corrosive gas get into bearing and cause corrosion and wearing and tearing; And can take away the split bearing heat; Reduce bearing temperature, improve the use condition of centrifuge bearing, improve the working life of centrifuge bearing.
Description of drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a side view of the present invention.
Among the figure, 1, the rotary drum main shaft, 2, transmission cover, 3, bearing end cover, 4, bearing support, 5, bearing, 6, internal bearing cover, 7, sealed support, 7.1, the hermetic seal passage, 8, sealing gland, 9, seal element, 10, high-pressure air source, 11, oil sealing, 12, pad.
Embodiment
Below be preferred embodiment of the present invention, but therefore do not limit protection scope of the present invention.
Shown in seeing figures.1.and.2; The compound seal arrangement of a kind of centrifuge bearing of the present invention; It comprises transmission cover 2, bearing end cover 3, bearing support 4, bearing 5, internal bearing cover 6, sealed support 7 and the sealing gland 8 that is linked in successively outside the bowl main shaft 1; Be provided with seal element 9 between sealed support 7 and the rotary drum main shaft 1; Described sealed support 7 is provided with a hermetic seal passage 7.1, and hermetic seal passage 7.1 the inners press close to rotary drum main shaft 1 outer surface and between seal element 9 and sealing gland 8, the outer end of hermetic seal passage 7.1 is connected with high-pressure air source 10.
Described seal element 9 spirals are on rotary drum main shaft 1.
Described internal bearing cover 6 is near being provided with oil sealing 11 between seal element 9 sides and the rotary drum main shaft 1.
Be provided with pad 12 between bearing end cover 3 and the bearing 5.
Working principle of the present invention is: when the present invention cooperates bowl work; Under the effect of high-pressure air source 10, produce gas; Get into the outer end of hermetic seal passage 7.1; The inner from hermetic seal passage 7.2 blows out then, owing between the inner of hermetic seal passage 7.2 and rotary drum main shaft 1 outer surface certain slit is arranged, and between sealing gland 8 and rotary drum main shaft 1 outer surface certain slit is arranged also; Therefore in the middle of gas is blown out to the external world from the slit between sealing gland 8 and rotary drum main shaft 1 outer surface; Can prevent effectively that so harmful matters such as atomic thin hard dust, corrosive gas from getting in the gap between sealing gland 8 and rotary drum main shaft 1 outer surface, finally avoid harmful matters such as dust, corrosive gas to get into bearing 5, realize gas seal.What the present invention adopted is the gas seal mode, through injecting dry pressurized gas in hermetic seal passage 7.1 external port, improves the air pressure in the Seal cage; Make the gas outflow, not only can prevent atomic thin hard dust, harmful matters such as corrosive gas get into bearing 5 and cause corrosion and wearing and tearing; And can take away the split bearing heat; Reduce bearing temperature, improve the use condition of centrifuge bearing, improve the working life of centrifuge bearing.
Claims (3)
1. compound seal arrangement of centrifuge bearing; It is characterized in that: it comprises transmission cover (2), bearing end cover (3), bearing support (4), bearing (5), internal bearing cover (6), sealed support (7) and the sealing gland (8) that is linked in successively outside the bowl main shaft (1); Be provided with seal element (9) between sealed support (7) and the rotary drum main shaft (1); Described sealed support (7) is provided with a hermetic seal passage (7.1); Hermetic seal passage (7.1) the inner press close to rotary drum main shaft (1) outer surface and be positioned at seal element (9) and sealing gland (8) between, the outer end of hermetic seal passage (7.1) is connected with high-pressure air source (10).
2. the compound seal arrangement of centrifuge bearing according to claim 1 is characterized in that: described seal element (9) spiral is on rotary drum main shaft (1).
3. the compound seal arrangement of centrifuge bearing according to claim 1 is characterized in that: described internal bearing cover (6) is near being provided with oil sealing (11) between seal element (9) side and the rotary drum main shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022297.2A CN102588602B (en) | 2012-02-01 | 2012-02-01 | centrifuge bearing composite sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022297.2A CN102588602B (en) | 2012-02-01 | 2012-02-01 | centrifuge bearing composite sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102588602A true CN102588602A (en) | 2012-07-18 |
| CN102588602B CN102588602B (en) | 2015-08-26 |
Family
ID=46477669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210022297.2A Active CN102588602B (en) | 2012-02-01 | 2012-02-01 | centrifuge bearing composite sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102588602B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447165A (en) * | 2013-08-22 | 2013-12-18 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN103758866A (en) * | 2014-02-20 | 2014-04-30 | 中国工程物理研究院总体工程研究所 | Combined radial thrust bearing for precision centrifuge |
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN114770777A (en) * | 2022-04-24 | 2022-07-22 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Swing mechanism with air fluid sealing structure and multi-wire cutting machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101407A (en) * | 1985-03-06 | 1986-09-03 | 曼弗雷德·萨德 | Face seals |
| JP2002174347A (en) * | 2000-12-07 | 2002-06-21 | Osuka Engineering:Kk | Seal device for shaft |
| CN201057272Y (en) * | 2007-07-04 | 2008-05-07 | 何全波 | Gas sealing mechanism of bearing inner cover |
| CN101216111A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Method for implementing bearing hermetic sealing for machining inner screw thread copper pipe |
| CN201525091U (en) * | 2009-09-22 | 2010-07-14 | 中国电子科技集团公司第四十五研究所 | Air-tight sealing device for principle axis of multi-wire cutting machine wire wheel |
| CN201832720U (en) * | 2010-10-27 | 2011-05-18 | 江苏牡丹离心机制造有限公司 | Sealing device for main shaft of centrifugal machine |
| CN202037080U (en) * | 2011-01-17 | 2011-11-16 | 海申机电总厂(象山) | Sealing structure of centrifugal machine |
| CN202484302U (en) * | 2012-02-01 | 2012-10-10 | 海申机电总厂(象山) | Composite sealing device of centrifugal machine bearing |
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2012
- 2012-02-01 CN CN201210022297.2A patent/CN102588602B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101407A (en) * | 1985-03-06 | 1986-09-03 | 曼弗雷德·萨德 | Face seals |
| JP2002174347A (en) * | 2000-12-07 | 2002-06-21 | Osuka Engineering:Kk | Seal device for shaft |
| CN201057272Y (en) * | 2007-07-04 | 2008-05-07 | 何全波 | Gas sealing mechanism of bearing inner cover |
| CN101216111A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Method for implementing bearing hermetic sealing for machining inner screw thread copper pipe |
| CN201525091U (en) * | 2009-09-22 | 2010-07-14 | 中国电子科技集团公司第四十五研究所 | Air-tight sealing device for principle axis of multi-wire cutting machine wire wheel |
| CN201832720U (en) * | 2010-10-27 | 2011-05-18 | 江苏牡丹离心机制造有限公司 | Sealing device for main shaft of centrifugal machine |
| CN202037080U (en) * | 2011-01-17 | 2011-11-16 | 海申机电总厂(象山) | Sealing structure of centrifugal machine |
| CN202484302U (en) * | 2012-02-01 | 2012-10-10 | 海申机电总厂(象山) | Composite sealing device of centrifugal machine bearing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447165A (en) * | 2013-08-22 | 2013-12-18 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN103447165B (en) * | 2013-08-22 | 2015-07-22 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN103758866A (en) * | 2014-02-20 | 2014-04-30 | 中国工程物理研究院总体工程研究所 | Combined radial thrust bearing for precision centrifuge |
| CN103758866B (en) * | 2014-02-20 | 2016-01-06 | 中国工程物理研究院总体工程研究所 | Precision centrifuge radical-thrust joint bearing |
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN114770777A (en) * | 2022-04-24 | 2022-07-22 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Swing mechanism with air fluid sealing structure and multi-wire cutting machine |
| CN114770777B (en) * | 2022-04-24 | 2024-04-09 | 北京半导体专用设备研究所（中国电子科技集团公司第四十五研究所） | Swing mechanism with gas fluid sealing structure and multi-wire saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102588602B (en) | 2015-08-26 |
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