CN101603518B - Mechanical seal for vacuum equipment and lubrication method thereof - Google Patents
Mechanical seal for vacuum equipment and lubrication method thereof Download PDFInfo
- Publication number
- CN101603518B CN101603518B CN2009101002022A CN200910100202A CN101603518B CN 101603518 B CN101603518 B CN 101603518B CN 2009101002022 A CN2009101002022 A CN 2009101002022A CN 200910100202 A CN200910100202 A CN 200910100202A CN 101603518 B CN101603518 B CN 101603518B
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- pump
- disc
- vacuum
- pump shaft
- oil
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Abstract
The invention relates to a mechanical seal for vacuum equipment and a lubrication method thereof. The seal is used for a vacuum pump which comprises a pump body and a pump shaft, and is characterized in that: an oil slinger is arranged between the pump shaft and the pump body and an oil collecting cover; one radial side of the oil slinger is pressed against the pump shaft, while one axial side is adjacent to the oil collecting cover; the circumstance of the oil slinger is provided with a circumferential slot; the oil slinger is arranged in a vacuum oil room; the pump body is connected with a pressed cover; a spring, a push ring, a second O-shaped ring, a shaft sleeve, a static ring, a dynamic ring and a first O-shaped ring are arranged between the pressed cover and the oil collecting cover; and the pressed cover is fixedly connected with the pump body by a bolt sleeved with a gasket. Since the oil slinger is arranged between the pump shaft and the pump body and an oil collecting cover, the lubrication method is practical, the dynamic pressed lubrication performance of the pump shaft can be greatly improved, particularly in the mechanical seal component of the vacuum equipment, the effect is good, and the service life of a pump is prolonged.
Description
Technical field
The present invention relates to the vacuum pump Sealing.
Background technique
Mechanical sealing element is one of vitals of pump class, plays and carries various liquid to stop the effect of leaking.But existing vacuum pump is by packing seal, is subjected to dynamic and static alternating stress when moving because of vacuum pump, and leakage problem is difficult to effectively be solved.
The patent of invention 200310118781.6 that Chinese patent literature discloses discloses " system of lubricated bent axle lip packing "; This system of with lubricator lubricating the bent axle lip packing with wearing face that makes, this oiling agent is used for this bent axle.This system comprises: compression case body portion, this lip packing are fixed in this compression case body portion, so that engage with this bent axle; And in this compression case body portion, be used for providing lubricated structure to this lip packing surface.In a preferred embodiment, this structure comprises the hole with reservoir, and this reservoir is used to keep this oiling agent to contact with this lip packing, also comprises the method for the amount that is used to be controlled at the oiling agent in this reservoir.
It is to be overcome that above-mentioned the former has, and the disclosed structure of latter's application text is comparatively complicated, implements certain degree of difficulty.
Summary of the invention
The present invention will overcome above-mentioned deficiency, and purpose is to provide a kind of mechanical seal for vacuum equipment and lubricating method to related domain.The sealing of its dynamic stress that can solve the vacuum pump pump shaft is improved a lot with greasy property and owe long technical problem working life.The objective of the invention is to adopt following technological scheme to realize.
A kind of mechanical seal for vacuum equipment, the sealing part is used for vacuum pump, and it comprises the pump housing, pump shaft, between the pump shaft and the pump housing, the collecting cover disc is set; The pump shaft that radially simultaneously offsets of described disc, an axial Neighbor Set oil cap of disc; Its main points are: the circumferential surface of disc is provided with peripheral groove, and described disc places vacuum oil indoor.
The described pump housing connects gland, and spring, throw-out collar, the 2nd O shape circle, axle sleeve, stationary ring, rotating ring, O shape circle are set between gland and the collecting cover;
Described gland connects the pump housing by the bolt that is with sealing gasket.
The present invention makes the dynamic stress sealing of vacuum pump pump shaft improve a lot with greasy property because of between pump shaft and the pump housing, collecting cover disc being set, and makes it in the vacuum equipment mechanical sealing assembly, and is respond well, will prolong the working life of pump.
Description of drawings
Fig. 1 is a mechanical sealing element of the present invention, is installed in the vacuum pump structure schematic representation of one of vacuum equipment, has done A portion among the figure and has confined.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Embodiment
Embodiment is an example with the lubricating method of mechanical seal for vacuum equipment.This method is used for vacuum pump, and it comprises the pump housing 12, pump shaft 14, and disc 1 is set between the pump shaft and the pump housing, the collecting cover; The pump shaft that radially simultaneously offsets of described disc, an axial Neighbor Set oil cap 2 of disc, the circumferential surface of disc is provided with peripheral groove 101; Described disc places in the vacuum grease chamber 13; When pump shaft during at high speed rotating, the peripheral groove of disc takes up the lubricant oil of vacuum grease chamber, get rid of to around, oil droplet is fallen in the collecting cover groove suitable for reading and is flowed to Seal cage, makes the lubricated and sealing operating mode that spring 9, throw-out collar 8, the 2nd O shape circle 7, axle sleeve 6, stationary ring 5, rotating ring 4, O shape circle 3 are set between gland and the collecting cover good.And gland 10 is convenient to safeguard or maintenance by the bolt 11 fixedly connected pump housings that are with sealing gasket, mechanical sealing element of the present invention is improved a lot with greasy property in the dynamic stress sealing of the pump shaft of vacuum equipment, make the sealing of mechanical sealing assembly comparatively stable, in shape again.
Claims (3)
1. mechanical seal for vacuum equipment, the sealing part is used for vacuum pump, and it comprises the pump housing, pump shaft, between the pump shaft (14) and the pump housing (12), the collecting cover (2) disc (1) is set; The pump shaft that radially simultaneously offsets of described disc, an axial Neighbor Set oil cap (2) of disc; It is characterized in that: the circumferential surface of disc is provided with peripheral groove (101), and described disc places in the vacuum grease chamber (13).
2. mechanical seal for vacuum equipment as claimed in claim 1, it is characterized in that the described pump housing (12) connects gland (10), spring (9), throw-out collar (8), the 2nd O shape circle (7), axle sleeve (6), stationary ring (5), rotating ring (4), O shape circle (3) are set between gland and the collecting cover, and described gland is by the fixedly connected pump housing of the bolt that is with sealing gasket (11).
3. the lubricating method of a mechanical seal for vacuum equipment, this method is used for vacuum pump, it comprises the pump housing, pump shaft, it is characterized in that: between the pump shaft (14) and the pump housing (12), the collecting cover disc (1) is set, the pump shaft that radially simultaneously offsets of described disc, an axial Neighbor Set oil cap (2) of disc, the circumferential surface of disc is provided with peripheral groove (101); Described disc places in the vacuum grease chamber (13); When pump shaft (14) during at high speed rotating, the peripheral groove (101) of disc (1) takes up the lubricant oil of vacuum grease chamber (13), get rid of to around, oil droplet is fallen in collecting cover (2) groove suitable for reading and is flowed to Seal cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101002022A CN101603518B (en) | 2009-06-24 | 2009-06-24 | Mechanical seal for vacuum equipment and lubrication method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101002022A CN101603518B (en) | 2009-06-24 | 2009-06-24 | Mechanical seal for vacuum equipment and lubrication method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603518A CN101603518A (en) | 2009-12-16 |
| CN101603518B true CN101603518B (en) | 2010-09-22 |
Family
ID=41469386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101002022A Expired - Fee Related CN101603518B (en) | 2009-06-24 | 2009-06-24 | Mechanical seal for vacuum equipment and lubrication method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603518B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705495B (en) * | 2012-06-14 | 2015-10-28 | 金先培 | The vertical variable-speed motor of self-loopa |
| CN105971925B (en) * | 2016-07-08 | 2018-09-07 | 上海通用风机股份有限公司 | A kind of corrosive resistant fan sealing device |
| CN106194649A (en) * | 2016-08-26 | 2016-12-07 | 宁波东电电力设备制造有限公司 | A kind of hydro-generating Unit pump case |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620113Y (en) * | 2003-04-30 | 2004-06-09 | 管向东 | Direct connected water ring type vacuum pump |
| CN1699800A (en) * | 2004-05-18 | 2005-11-23 | 郑小平 | Mechanical sealing device |
| CN1904379A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Small size single stage single water suction ring vacuum pump |
-
2009
- 2009-06-24 CN CN2009101002022A patent/CN101603518B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620113Y (en) * | 2003-04-30 | 2004-06-09 | 管向东 | Direct connected water ring type vacuum pump |
| CN1699800A (en) * | 2004-05-18 | 2005-11-23 | 郑小平 | Mechanical sealing device |
| CN1904379A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Small size single stage single water suction ring vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101603518A (en) | 2009-12-16 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100922 Termination date: 20150624 |
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| EXPY | Termination of patent right or utility model |