CN2765887Y - Gap adjustable air seal machinery - Google Patents
Gap adjustable air seal machinery Download PDFInfo
- Publication number
- CN2765887Y CN2765887Y CN 200520032991 CN200520032991U CN2765887Y CN 2765887 Y CN2765887 Y CN 2765887Y CN 200520032991 CN200520032991 CN 200520032991 CN 200520032991 U CN200520032991 U CN 200520032991U CN 2765887 Y CN2765887 Y CN 2765887Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- end cap
- housing
- shell
- end 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an air shutter which is a sealed feed unit in a pneumatic system provided by a rotary or a rotor, particularly an air shutter with an adjustable interstice. The utility model comprises a shell, an impeller (rotor) and an end cover, wherein a feed inlet is arranged on the shell, the impeller is arranged on the end cover by a rotating shaft, and the end cover is arranged on the shell by a bolt; the corresponding positions of the end surfaces of the end cover and the shell are provided with positioning pin holes, and the end cover is positioned by more than two positioning pins. Because the utility model uses the positioning pins to position, the requirement of the process precision is low, only the interstice between the impeller and the feed inlet of the shell is well adjusted in installation, the positioning pin holes are then drilled for matching and the positioning pins are punched. When the interstice between the impeller and the shell needs to be adjusted because the abrasion of the impeller, the interstice can be regulated by making use of an interstice between a mounting bolt and a bolt mounting hole on the end cover. Thus, the impeller is reusable and the service life of the air shutter is extended.
Description
Technical field:
The utility model relates to the air sealer that a kind of rotary blade or rotor provide leak free feeding device---air sealer, particularly a kind of adjustable gaps in the air-transport system.
Background technology:
Air sealer mainly is made up of housing, impeller (rotor), end cap three-major-items.The impeller of traditional air sealer is to locate by the seam on the end cap, satisfies the requirement of raw meal particle size size to the gap between impeller and the housing inlet point.This air sealer requires housing endoporus axial line, impeller axial line, end cap axial line three-way same adding man-hour.So to housing, impeller and end cap three requirement on machining accuracy height, difficulty is big, the assembling difficulty, the cost height more can't satisfy the different material granule size to the gap requirement between air sealer housing and the impeller; In addition, gap between air sealer housing inlet point and the impeller can't be regulated, when the gap between air sealer housing and the impeller can't reach requiring of raw meal particle size size because of damage in impeller, impeller can only be scrapped, be that the air sealer impeller can't repeated use, thereby reduced each airtight performance in service life of air sealer.Publication number is that 87206705 Chinese patent discloses a kind of adjustable clearance air sealer.This air sealer is that housing inner hole surface and impeller outer disc all are processed into the conical surface, realizes the adjusting in air sealer gap by regulating the position of impeller in rotating shaft.The air sealer of this structure requires its axial dimension to want big, in addition two male cone (strobilus masculinus)s add that difficulty, particularly the impeller conical surface are owing to be to be interrupted processing, difficulty of processing is bigger.
Summary of the invention:
The purpose of this utility model is the shortcoming that is to overcome above-mentioned air sealer, provides a kind of requirement on machining accuracy low, and difficulty is little, easily assembling, efficient height, the air sealer that cost is low.
The utility model comprises housing, impeller (rotor) and end cap.Housing is provided with inlet point, and impeller is installed on the end cap by rotating shaft, and end cap is installed on the housing with bolt, and on the end cap and housing end face relevant position is provided with dowel hole, and end cap is located by plural locating dowel pin.
Two above locating dowel pins of above-mentioned air sealer are arranged symmetrically along end cap.
Be provided with seam (convex edge) on above-mentioned air sealer end cap, and seam is located at the side by impeller, the diameter of seam is less than the housing diameter of bore.
Because the utility model has adopted said structure, low to requirement on machining accuracy, only need mix up the gap between impeller and the housing inlet point when mounted, and then join the brill dowel hole, stamp locating dowel pin and get final product, and need not add the requirement that the gap that will guarantee man-hour between impeller and the housing inlet point reaches regulation.In addition, behind damage in impeller, when the gap between impeller and the housing inlet point reaches requiring of regulation, can utilize the gap between the bolt mounting holes on hold-down bolt and the end cap, after regulating the inlet point and the gap between the impeller on the housing, join the brill dowel hole again, stamp locating dowel pin and can reorientate, it is reusable to reach impeller, has prolonged the purpose in service life of air sealer.
Description of drawings:
Fig. 1 is the utility model structural representation
Among the figure: 1 is impeller, and 2 is inlet point, and 3 is housing, and 4 is locating dowel pin, and 5 is dowel hole, and 6 is end cap, and 7 is seam.
The specific embodiment:
The utility model comprises housing 3, impeller (rotor) 1 and end cap 6.Housing 3 is provided with inlet point 2, and impeller 3 is installed on the end cap 6 by rotating shaft, and end cap 6 usefulness bolts are installed on the housing 3, and on the end cap 6 and housing 3 end face relevant positions are provided with dowel hole 5, and end cap 6 is located by plural locating dowel pin 4.
Two above locating dowel pins 4 of above-mentioned air sealer are arranged symmetrically along end cap 6.
Be provided with seam (convex edge) 7 on above-mentioned air sealer end cap 6, seam 7 is located at the side by impeller 1, and the diameter of seam 7 is less than housing 3 diameter of bores.
Claims (3)
1, a kind of air sealer of adjustable gaps comprises housing (3), impeller (1) and end cap (6), housing (3) is provided with inlet point (2), impeller (l) is installed on (6) on the end cap by rotating shaft, end cap (6) is installed on the housing (3) with bolt, it is characterized in that: end cap (6) is gone up and housing (3) end face relevant position is provided with dowel hole (5), and end cap (6) is located by plural locating dowel pin (4).
2, the air sealer of a kind of adjustable gaps according to claim 1 is characterized in that: two above locating dowel pins of described air sealer (4) are arranged symmetrically along end cap (6).
3, the air sealer of a kind of adjustable gaps according to claim 1 and 2, it is characterized in that: on described air sealer end cap (6), be provided with seam (7), seam (7) is located at the side by impeller (1), and the diameter of seam (7) is less than housing (3) diameter of bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032991 CN2765887Y (en) | 2005-01-28 | 2005-01-28 | Gap adjustable air seal machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520032991 CN2765887Y (en) | 2005-01-28 | 2005-01-28 | Gap adjustable air seal machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765887Y true CN2765887Y (en) | 2006-03-22 |
Family
ID=36606551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520032991 Expired - Fee Related CN2765887Y (en) | 2005-01-28 | 2005-01-28 | Gap adjustable air seal machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765887Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849464A (en) * | 2012-09-25 | 2013-01-02 | 浙江杭摩合成材料有限公司 | Air-shutting discharging device capable of adjusting gap |
| CN112113480A (en) * | 2020-09-18 | 2020-12-22 | 中国航发沈阳黎明航空发动机有限责任公司 | Auxiliary tool and method for measuring assembly clearance of fan unit body |
-
2005
- 2005-01-28 CN CN 200520032991 patent/CN2765887Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849464A (en) * | 2012-09-25 | 2013-01-02 | 浙江杭摩合成材料有限公司 | Air-shutting discharging device capable of adjusting gap |
| CN112113480A (en) * | 2020-09-18 | 2020-12-22 | 中国航发沈阳黎明航空发动机有限责任公司 | Auxiliary tool and method for measuring assembly clearance of fan unit body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |