CN202867220U - Mechanical seal structure of roots vacuum pump - Google Patents
Mechanical seal structure of roots vacuum pump Download PDFInfo
- Publication number
- CN202867220U CN202867220U CN 201220534172 CN201220534172U CN202867220U CN 202867220 U CN202867220 U CN 202867220U CN 201220534172 CN201220534172 CN 201220534172 CN 201220534172 U CN201220534172 U CN 201220534172U CN 202867220 U CN202867220 U CN 202867220U
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- CN
- China
- Prior art keywords
- oil
- vacuum pump
- ring seat
- groove
- mechanical seal
- 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.)
- Expired - Lifetime
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a mechanical seal structure of a roots vacuum pump. The mechanical seal structure of the roots vacuum pump is characterized by comprising a seal ring seat (1), a sealing bush (2) and an oil baffle plate (3), wherein the seal ring seat (1) and the oil baffle plate (3) are sleeved on a drive shaft of the roots vacuum pump; the sealing bush (2) is sleeved at the periphery of the seal ring seat (1); a plurality of second oil buffer ring slots (4) are arranged at the excircle surface of the seal ring seat (1); a first oil buffer ring slot (5) is arranged at the end part of one side of the sealing bush (2); a groove (6) is arranged at the end face of the oil baffle plate (3); and the end part of the sealing bush (2) is embedded into the groove (6). The mechanical seal structure of the roots vacuum pump is simple in structure and good in sealing effect; and meanwhile, the first oil buffer ring slot and the second oil buffer ring slots can effectively achieve deceleration of high-speed oil, and oil can be prevented from entering a vacuum chamber.
Description
Technical field
The utility model relates to a kind of Roots pump, relates in particular to a kind of mechanical seal structure of Roots pump.
Background technique
The engineering equipments such as Roots pump, high pressure positive blower, retarder, be mainly used in the fields such as metallurgy, chemical industry, generating, environmental protection, building, this type of engineering equipment generally selects the rubber framework grease seal structure to seal, the working life of this sealing configuration is short, leakage of oil is serious, can not adapt to the Environmental Conditions of present equipment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of Roots pump mechanical seal structure is provided, and improves working life and the sealing effect of pump packing structure.
The purpose of this utility model is achieved in that a kind of Roots pump mechanical seal structure, it comprises seal ring seat, seal cartridge and oil baffle disc, described seal ring seat and oil baffle disc all are nested with on the transmission shaft of Roots pump, described seal cartridge is nested with the periphery in seal ring seat, periphery in described seal ring seat is provided with a plurality of second slow oil ring groove, side end at described seal cartridge is provided with the first slow oil ring groove, end face at described oil baffle disc is provided with groove, and the end of described seal cartridge is embedded in the groove.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is simple in structure, good sealing effect, and the first slow oil ring groove and the second slow oil ring groove can effectively be realized the at a high speed deceleration of oil simultaneously, can prevent that oil from entering vacuum chamber.
Description of drawings
Fig. 1 is axial sectional view of the present utility model.
Wherein:
Seal ring seat 1
The second slow oil ring groove 4
The first slow oil ring groove 5
Groove 6.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of Roots pump mechanical seal structure, it comprises seal ring seat 1, seal cartridge 2 and oil baffle disc 3, described seal ring seat 1 and oil baffle disc 3 all are nested with on the transmission shaft of Roots pump, described seal cartridge 2 is nested with the periphery in seal ring seat 1, periphery in described seal ring seat 1 is provided with a plurality of second slow oil ring groove 4, can allow the oil of high speed flow slow, side end at described seal cartridge 2 is provided with the first slow oil ring groove 5, end face at described oil baffle disc 3 is provided with groove 6, the end of described seal cartridge 2 is embedded in the groove 6, guarantee sealing, the first slow oil ring groove 5 and the second slow oil ring groove 4 can be realized the at a high speed deceleration of oil simultaneously, can prevent that oil from entering vacuum chamber.
Claims (1)
1. Roots pump mechanical seal structure, it is characterized in that it comprises seal ring seat (1), seal cartridge (2) and oil baffle disc (3), described seal ring seat (1) and oil baffle disc (3) all are nested with on the transmission shaft of Roots pump, described seal cartridge (2) is nested with the periphery in seal ring seat (1), periphery in described seal ring seat (1) is provided with a plurality of second slow oil ring groove (4), side end at described seal cartridge (2) is provided with the first slow oil ring groove (5), end face at described oil baffle disc (3) is provided with groove (6), and the end of described seal cartridge (2) is embedded in the groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534172 CN202867220U (en) | 2012-10-18 | 2012-10-18 | Mechanical seal structure of roots vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534172 CN202867220U (en) | 2012-10-18 | 2012-10-18 | Mechanical seal structure of roots vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867220U true CN202867220U (en) | 2013-04-10 |
Family
ID=48033943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534172 Expired - Lifetime CN202867220U (en) | 2012-10-18 | 2012-10-18 | Mechanical seal structure of roots vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640654A (en) * | 2017-02-09 | 2017-05-10 | 江阴华西节能技术有限公司 | Roots vacuum pump sealing structure |
-
2012
- 2012-10-18 CN CN 201220534172 patent/CN202867220U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640654A (en) * | 2017-02-09 | 2017-05-10 | 江阴华西节能技术有限公司 | Roots vacuum pump sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |