CN102588602B - centrifuge bearing composite sealing device - Google Patents
centrifuge bearing composite sealing device Download PDFInfo
- Publication number
- CN102588602B CN102588602B CN201210022297.2A CN201210022297A CN102588602B CN 102588602 B CN102588602 B CN 102588602B CN 201210022297 A CN201210022297 A CN 201210022297A CN 102588602 B CN102588602 B CN 102588602B
- Authority
- CN
- China
- Prior art keywords
- bearing
- main shaft
- drum main
- hermetic seal
- cover
- 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.)
- Active
Links
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Centrifugal Separators (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of centrifuge bearing composite sealing device, it comprises and is linked in bowl main shaft (1) transmission cover outward (2) successively, bearing end cover (3), bearing support (4), bearing (5), internal bearing cover (6), sealed support (7) and sealing gland (8), seal element (9) is provided with between sealed support (7) and drum main shaft (1), described sealed support (7) is provided with a hermetic seal passage (7.1), hermetic seal passage (7.1) the inner is pressed close to drum main shaft (1) outer surface and is positioned 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).Effectively can prevent atomic thin hard dust, the harmful matters such as corrosive gas enter bearing.The invention belongs to seal arrangement technical field.
Description
Technical field
The invention belongs to seal arrangement technical field, particularly relate to a kind of centrifuge associated sealing arrangement for bearings.
Background technique
Centrifuge utilizes centrifugation principle that suspension is entered rotary drum through supply pipe and spiral discharging mouth, under the centrifugal action that High Rotation Speed produces, the solid phase particles that proportion is larger is deposited on drum inner wall, and the solid phase particles be deposited on drum inner wall constantly scrapes and releases slag exhausting mouth by the helical blade doing relative movement with rotary drum.Clear liquid after 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 have some hard particles materials, along with the rotating speed of centrifuge is more and more higher, in the engineering of centrifuge long-time running, due to the change of the factors such as external pressure, all main shaft bearing rotary component can be entered, corrosion and wear spindle bearing rotary parts, have a strong impact on the working life of the rotary component such as main shaft and bearing.Corrosive gas and hard particles material highlight more to the corrosion of centrifuge principal axis bearing rotary parts and wearing and tearing, and general centrifuge contact type bearing seal mode cannot meet industrial requirements.Therefore design and aly can prevent hard dust, the seal arrangement that the harmful matters such as corrosive gas enter bearing is required at present.
Summary of the invention
The technical problem to be solved in the present invention is, provide one can improve centrifuge principal axis and hold working life and seal degree, prevent atomic thin hard dust, the harmful matters such as corrosive gas enter the centrifuge bearing composite sealing device of bearing.
The technical solution used in the present invention is, a kind of centrifuge bearing composite sealing device, it comprises the transmission cover, bearing end cover, bearing support, bearing, internal bearing cover, sealed support and the sealing gland that are linked in successively outside bowl main shaft, seal element is provided with between sealed support and drum main shaft, described sealed support is provided with a hermetic seal passage, hermetic seal passage the inner presses close to drum main shaft outer surface 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 in drum main shaft.
Described internal bearing cover is provided with oil sealing near between seal element side and drum main shaft.
The invention has the beneficial effects as follows: when the present invention coordinates bowl to work, gas is produced under the effect of high-pressure air source, enter the outer end of hermetic seal passage, then blow out from the inner of hermetic seal passage, owing to having certain gap between the inner of hermetic seal passage and drum main shaft outer surface, and also there is certain gap between sealing gland and drum main shaft outer surface, therefore gas is blown out in the middle of the external world from the gap between sealing gland and drum main shaft outer surface, so atomic thin hard dust can effectively be prevented, the harmful matters such as corrosive gas enter in the gap between sealing gland and drum main shaft outer surface, finally avoid dust, the harmful matters such as corrosive gas enter bearing, realize gas seal.What the present invention adopted is gas proof way, by injecting dry pressurized gas in hermetic seal passage external port, improve the air pressure in Seal cage, make gas outflow, not only can prevent atomic thin hard dust, the harmful matters such as corrosive gas enter bearing and cause corrosion and wearing and tearing, and split bearing heat can be taken away, reduce bearing temperature, improve the service condition of centrifuge bearing, improve the working life of centrifuge bearing.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is side view of the present invention.
In figure, 1, drum main shaft, 2, transmission cover, 3, bearing end cover, 4, bearing support, 5, bearing, 6, internal bearing cover, 7, sealed support, 7.1, hermetic seal passage, 8, sealing gland, 9, seal element, 10, high-pressure air source, 11, oil sealing, 12, pad.
Embodiment
Be below present pre-ferred embodiments, but therefore do not limit protection scope of the present invention.
Shown in seeing figures.1.and.2, a kind of centrifuge bearing of the present invention composite sealing device, it comprises the transmission cover 2 be linked in successively outside bowl main shaft 1, bearing end cover 3, bearing support 4, bearing 5, internal bearing cover 6, sealed support 7 and sealing gland 8, seal element 9 is provided with between sealed support 7 and drum main shaft 1, described sealed support 7 is provided with a hermetic seal passage 7.1, hermetic seal passage 7.1 the inner presses close to 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 spiral is in drum main shaft 1.
Described internal bearing cover 6 is provided with oil sealing 11 near between seal element 9 side and drum main shaft 1.
Pad 12 is provided with between bearing end cover 3 and bearing 5.
Working principle of the present invention is: when the present invention coordinates bowl to work, gas is produced under the effect of high-pressure air source 10, enter the outer end of hermetic seal passage 7.1, then blow out from the inner of hermetic seal passage 7.2, owing to having certain gap between the inner of hermetic seal passage 7.2 and drum main shaft 1 outer surface, and also there is certain gap between sealing gland 8 and drum main shaft 1 outer surface, therefore gas is blown out in the middle of the external world from the gap between sealing gland 8 and drum main shaft 1 outer surface, so atomic thin hard dust can effectively be prevented, the harmful matters such as corrosive gas enter in the gap between sealing gland 8 and drum main shaft 1 outer surface, finally avoid dust, the harmful matters such as corrosive gas enter bearing 5, realize gas seal.What the present invention adopted is gas proof way, by injecting dry pressurized gas in hermetic seal passage 7.1 external port, improve the air pressure in Seal cage, make gas outflow, not only can prevent atomic thin hard dust, the harmful matters such as corrosive gas enter bearing 5 and cause corrosion and wearing and tearing, and split bearing heat can be taken away, reduce bearing temperature, improve the service condition of centrifuge bearing, improve the working life of centrifuge bearing.
Claims (1)
1. a centrifuge bearing composite sealing device, it is characterized in that: it comprises and is linked in bowl main shaft (1) transmission cover outward (2) successively, bearing end cover (3), bearing support (4), bearing (5), internal bearing cover (6), sealed support (7) and sealing gland (8), seal element (9) is provided with between sealed support (7) and drum main shaft (1), described sealed support (7) is provided with a hermetic seal passage (7.1), hermetic seal passage (7.1) the inner is pressed close to drum main shaft (1) outer surface and is positioned 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) spiral is in drum main shaft (1), described internal bearing cover (6) is near being provided with oil sealing (11) between seal element (9) side and 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 CN102588602A (en) | 2012-07-18 |
| CN102588602B true 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 |
|---|---|
| CN (1) | CN102588602B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101407A (en) * | 1985-03-06 | 1986-09-03 | 曼弗雷德·萨德 | Face seals |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3440418B2 (en) * | 2000-12-07 | 2003-08-25 | 株式会社オスカエンジニアリング | Shaft sealing device |
-
2012
- 2012-02-01 CN CN201210022297.2A patent/CN102588602B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101407A (en) * | 1985-03-06 | 1986-09-03 | 曼弗雷德·萨德 | Face seals |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102588602A (en) | 2012-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101478190B (en) | Air sealing construct design for electric main shaft of oil grease mill | |
| CN201103686Y (en) | Principal shaft sealing device | |
| CN102588602B (en) | centrifuge bearing composite sealing device | |
| CN203604655U (en) | Combined sealing structure of main bearing of roller press | |
| CN203023297U (en) | Labyrinth seal structure of main shaft bearing of double-geared roller crusher | |
| CN201884664U (en) | Mechanical seal with moving ring and stationary ring in non-contact friction | |
| CN202392110U (en) | Shaft sealing device of horizontal scraper centrifuge | |
| CN102019234A (en) | Sealing device for centrifuge main shaft | |
| CN105065276A (en) | Combined type sealing device of dry screw vacuum pump | |
| CN104100524A (en) | Roots blower with combined sealing structure | |
| CN202484302U (en) | Composite sealing device of centrifugal machine bearing | |
| CN202251058U (en) | Oil film double mechanical sealing device for compressors | |
| CN101846171B (en) | Method for preventing oil leakage of worm gear reducer | |
| CN105422867A (en) | Spindle sealing mechanism | |
| CN202545182U (en) | Dry gas seal for synthesis gas compressor | |
| CN102042411B (en) | Non-contact type gas seal device | |
| CN203836227U (en) | Labyrinth airflow seal | |
| CN103803305A (en) | Double-sealed rotary valve | |
| CN203488717U (en) | Carbon ring seal | |
| CN205001515U (en) | Design has bearing seal of labyrinth seals structure | |
| CN202538836U (en) | Grinding roller sealing structure of vertical roller mill | |
| CN201166117Y (en) | Novel shaft sealing device and horizontal type concrete stirrer used thereby | |
| CN201705715U (en) | Shaft sealing cover of centrifugal pump with flow guide vane | |
| CN201844021U (en) | Non-contact gas sealing device | |
| CN202316130U (en) | Main shaft sealing device of vertical centrifugal machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |