CN204646665U - A kind of sealing configuration for getting rid of oil seal formula Roots pump - Google Patents
A kind of sealing configuration for getting rid of oil seal formula Roots pump Download PDFInfo
- Publication number
- CN204646665U CN204646665U CN201520195519.XU CN201520195519U CN204646665U CN 204646665 U CN204646665 U CN 204646665U CN 201520195519 U CN201520195519 U CN 201520195519U CN 204646665 U CN204646665 U CN 204646665U
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- CN
- China
- Prior art keywords
- oil seal
- rid
- ring
- getting rid
- rotating ring
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of sealing configuration for getting rid of oil seal formula Roots pump, sealing configuration is arranged between axle and end cap, it is characterized in that described sealing configuration is got rid of oil seal stationary ring by what match and got rid of oil seal rotating ring and form, getting rid of oil seal rotating ring is arranged near bearing side, and its inner ring and axle closely cooperate, getting rid of oil seal stationary ring is arranged on away from bearing side, and its outer ring closely cooperates with end cap, described getting rid of in oil seal rotating ring arranges cavity, described in get rid of oil seal stationary ring front end stretch in the cavity that gets rid of in oil seal rotating ring.After this structure of employing, significant sealing affection improves, and avoids the waste of lubricant oil, and guarantees the clean of process chamber.
Description
Technical field
The utility model relates to the inner sealing design field of Roots pump, specifically the design of the special seal structure of Roots pump inner sealing oil, particularly a kind of sealing configuration for getting rid of oil seal formula Roots pump.
Background technique
At present, sealing for Roots pump inside mostly adopts piston ring packing or lip seal, oil and process cavity can not separate by this design completely, reason is oil sealing and piston ring is need oil lubrication to improve the working life of Sealing in work, so due to the restriction of this structure, the leakage of the lubricant oil of Roots pump often cannot be avoided in process chamber.
Model utility content
The purpose of this utility model is the sealing configuration for getting rid of oil seal formula Roots pump providing a kind of significant sealing affection to improve.
To achieve these goals, the technical solution of the utility model is as follows: a kind of sealing configuration for getting rid of oil seal formula Roots pump, sealing configuration is arranged between axle and end cap, it is characterized in that described sealing configuration is got rid of oil seal stationary ring by what match and got rid of oil seal rotating ring and form, getting rid of oil seal rotating ring is arranged near bearing side, and its inner ring and axle closely cooperate, getting rid of oil seal stationary ring is arranged on away from bearing side, and its outer ring closely cooperates with end cap, described getting rid of in oil seal rotating ring arranges cavity, described front end of getting rid of oil seal stationary ring is stretched in the cavity that gets rid of in oil seal rotating ring.
According to preferred embodiment of the present utility model, the described inwall getting rid of oil seal rotating ring cavity is the inclined-plane that rear end extends out, described front end of getting rid of oil seal stationary ring arranges annular groove, the rear end of described groove is vertical surface, front end is plane of inclination, between described plane of inclination and vertical surface by connect arc surface connect, described plane of inclination stretch into described in get rid of in the cavity of oil seal rotating ring, get rid of outside the cavity of oil seal rotating ring described in vertical surface is then positioned at.
Sealing configuration of the present utility model is divided into and gets rid of oil seal stationary ring and get rid of oil seal rotating ring two parts, by the principle of the relative rotary work of sealing configuration, the rotating ring of High Rotation Speed is utilized to be thrown away by lubricant oil, avoid lubricant oil to be leaked in pump chamber by gap, thus avoid oil leakage in process cavity.After this structure of employing, significant sealing affection improves, and avoids the waste of lubricant oil, and guarantees the clean of process chamber.
Accompanying drawing explanation
To be that the utility model is novel get rid of oil seal project organization mounting point structural representation to Fig. 1.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the utility model will be further described.
In figure:
1-rotor,
2-axle,
3-gets rid of oil seal stationary ring,
4-gets rid of oil seal rotating ring,
5-fuel tank,
6-end cap,
7-bearing,
8-vertical surface,
9-plane of inclination.
A kind of sealing configuration for getting rid of oil seal formula Roots pump, sealing configuration is arranged between axle 2 and end cap 6, it is characterized in that described sealing configuration is got rid of oil seal stationary ring 3 and gets rid of oil seal rotating ring 4 formed by what match, getting rid of oil seal rotating ring 4 is arranged near bearing 7 side, and its inner ring and axle 2 closely cooperate, getting rid of oil seal stationary ring 3 is arranged on away from bearing 7 side, and its outer ring closely cooperates with end cap 6, describedly get rid of oil seal rotating ring 4 and get rid of oil seal stationary ring 3 and coordinate side that cavity is set, described front end of getting rid of oil seal stationary ring 3 is stretched in the cavity that gets rid of in oil seal rotating ring 4.As shown in the figure, the described inwall getting rid of oil seal rotating ring 4 cavity is the inclined-plane that rear end extends out, described front end of getting rid of oil seal stationary ring 3 arranges annular groove, the rear end of described groove is vertical surface 8, front end is plane of inclination 9, between described plane of inclination and vertical surface by connect arc surface connect, described plane of inclination stretch into described in get rid of in the cavity of oil seal rotating ring 4, get rid of outside the cavity of oil seal rotating ring 4 described in vertical surface is then positioned at.The height of described vertical surface is consistent with the height getting rid of oil seal rotating ring, horizontal length between the bottom of described plane of inclination and top is 6 ~ 8 millimeters, vertical height is 3 ~ 5 millimeters, gap h is left between the top of plane of inclination and the inwall getting rid of oil seal rotating ring 4 cavity, be of a size of 1 millimeter, leaving gap is in order to anti-stop ring 4 prevents rubbing contact stationary ring 3 in the process rotated.
During work, rotor 1 and axle 2, under the support of bearing 7, carry out High Rotation Speed.Because bearing 7 needs oil lubrication when rotating, lubricant oil is arranged in fuel tank 5.By the lubricant oil of bearing, by getting rid of the outer ring of oil seal rotating ring 4 under rotation, owing to getting rid of the High Rotation Speed of oil seal rotating ring 4, lubricant oil is thrown on the inwall of end cap 6, parts of lubricating oil is under the stop of getting rid of oil seal stationary ring 3, then lubricant oil is got back to again in fuel tank 5, and the inner ring getting rid of oil seal rotating ring 4 closely cooperates with axle 2, so inwall non lubricant oil is revealed; Be closely cooperate so outer ring is not also revealed with end cap 6 due to the outer ring of getting rid of oil seal stationary ring 3.Under the effect of this structure, lubricant oil cannot be leaked to rotor 1 end by the gap of axle 2, so just plays the effect of sealing.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that the utility model is specifically implemented to be confined to these explanations above-mentioned.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. one kind for getting rid of the sealing configuration of oil seal formula Roots pump, sealing configuration is arranged between axle and end cap, it is characterized in that described sealing configuration is got rid of oil seal stationary ring by what match and got rid of oil seal rotating ring and form, getting rid of oil seal rotating ring is arranged near bearing side, and its inner ring and axle closely cooperate, getting rid of oil seal stationary ring is arranged on away from bearing side, and its outer ring closely cooperates with end cap, described getting rid of in oil seal rotating ring arranges cavity, described in get rid of oil seal stationary ring front end stretch in the cavity that gets rid of in oil seal rotating ring.
2. sealing configuration as claimed in claim 1, the inwall getting rid of oil seal rotating ring cavity described in it is characterized in that is the inclined-plane that rear end extends out, described front end of getting rid of oil seal stationary ring arranges annular groove, the rear end of described groove is vertical surface, front end is plane of inclination, between described plane of inclination and vertical surface by connect arc surface connect, described plane of inclination stretch into described in get rid of in the cavity of oil seal rotating ring, get rid of outside the cavity of oil seal rotating ring described in vertical surface is then positioned at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195519.XU CN204646665U (en) | 2015-04-02 | 2015-04-02 | A kind of sealing configuration for getting rid of oil seal formula Roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195519.XU CN204646665U (en) | 2015-04-02 | 2015-04-02 | A kind of sealing configuration for getting rid of oil seal formula Roots pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646665U true CN204646665U (en) | 2015-09-16 |
Family
ID=54099426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520195519.XU Expired - Fee Related CN204646665U (en) | 2015-04-02 | 2015-04-02 | A kind of sealing configuration for getting rid of oil seal formula Roots pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646665U (en) |
-
2015
- 2015-04-02 CN CN201520195519.XU patent/CN204646665U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180402 |