CN201181198Y - Air-out angle measuring instrument of impeller - Google Patents
Air-out angle measuring instrument of impeller Download PDFInfo
- Publication number
- CN201181198Y CN201181198Y CNU2008200199373U CN200820019937U CN201181198Y CN 201181198 Y CN201181198 Y CN 201181198Y CN U2008200199373 U CNU2008200199373 U CN U2008200199373U CN 200820019937 U CN200820019937 U CN 200820019937U CN 201181198 Y CN201181198 Y CN 201181198Y
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- CN
- China
- Prior art keywords
- impeller
- outer diameter
- slide calliper
- calliper rule
- arc slide
- 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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Abstract
The utility model relates to an impeller outgassing angle measurer, which is used for measuring the outgassing angle of the impeller of a forward multi-blade centrifugal fan, which belongs to the additional apparatus for producing fans. The impeller outgassing angle measurer is composed of arc-shaped impeller outer diameter calipers and arc-shaped blade outer diameter calipers, wherein a protractor is arranged on the arc-shaped impeller outer diameter calipers, the bottom edge is arranged on the arc-shaped tangent line of the arc-shaped impeller outer diameter calipers, and a positioning ruler is arranged on the arc-shaped blade outer diameter calipers and on the extension line of the radius of the arc-shaped blade outer diameter calipers. The measurer has simple structure and convenient use, and can rapidly and accurately measure the outgassing angle of the impeller to prevent the confused use of impellers due to the inaccurate outgassing angle, thereby greatly facilitating quality inspection and production management.
Description
Technical field
The utility model relates to a kind of instrument for measuring impeller air-out angle, is used to measure the angle of giving vent to anger of forward direction centrifugal multiblade fan impeller, belongs to the attached utensil that ventilation blower is produced.
Background technology
Forward direction centrifugal multiblade ventilation blower, specification is various in style, for the impeller of same diameter, also has the multiple angle of giving vent to anger, and the size difference is little, and the identification difficulty is obscured use easily.Traditional measuring method is the concrete size with vernier caliper measurement blade radian place, and by calculating the angle of giving vent to anger of determining impeller, because the blade wheel structure complexity, measurement space is limited, be inconvenient to operate, thereby measuring accuracy is low then.
The utility model content
The purpose of this utility model is to provide a kind of instrument for measuring impeller air-out angle, can measure impeller air-out angle rapidly and accurately, stops to be hard to tell the impeller that occurs because of the angle of giving vent to anger and obscures the use phenomenon, makes things convenient for quality inspection and production management.
Instrument for measuring impeller air-out angle described in the utility model is made up of impeller outer diameter arc slide calliper rule and blade external diameter arc slide calliper rule, and impeller outer diameter arc slide calliper rule are provided with protractor, and the base of protractor is positioned on the arc tangent line of impeller outer diameter arc slide calliper rule; Blade external diameter arc slide calliper rule are provided with positioning rule, and positioning rule is positioned on the radius extension line of blade external diameter arc slide calliper rule.
Can mark to 180 degree angles, the convenient direct reading angular number of degrees along camber line at the base of protractor mark an angle of 90 degrees.
The camber line of impeller outer diameter arc slide calliper rule is designed to 60 camber lines of spending angles, and the camber line of blade external diameter arc slide calliper rule is designed to the camber line of an angle of 90 degrees, structure dexterity, compactness, the convenient use.
Slide calliper rule can be by board making such as corrosion resistant plate or plastic plates.
During use, impeller outer diameter arc slide calliper rule are snapped on the impeller outer diameter, blade external diameter arc slide calliper rule are snapped on the blade outer arc, can read the angle of giving vent to anger of this impeller from the protractor of impeller outer diameter arc slide calliper rule.
The utility model instrument for measuring impeller air-out angle, simple in structure, easy to use, can measure impeller air-out angle rapidly and accurately, stopped to be hard to tell the impeller that occurs and obscured the use phenomenon because of the angle of giving vent to anger, greatly facilitate quality inspection and production management.
In actual production, can make the slide calliper rule of plurality of specifications according to different impeller diameters and blade radian, and supporting in the use of departments such as production, quality inspection, technology, can improve workman and Quality Inspector's work efficiency, that has stopped impeller obscures the use phenomenon, guarantees high-quality, produces expeditiously.
Description of drawings
The impeller outer diameter arc slide calliper rule structural representation of Fig. 1, the utility model one embodiment.
The blade external diameter arc slide calliper rule structural representation of Fig. 2, the utility model one embodiment.
Fig. 3, the structural representation of the utility model embodiment under user mode.
Among the figure: 1, the radius of curvature of the radius of curvature r of impeller outer diameter arc slide calliper rule 2, protractor 3, blade external diameter arc slide calliper rule 4, positioning rule R, impeller outer diameter arc slide calliper rule, blade external diameter arc slide calliper rule.
Embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in Figure 1 and Figure 2, instrument for measuring impeller air-out angle described in the utility model, form by impeller outer diameter arc slide calliper rule 1 and blade external diameter arc slide calliper rule 3, impeller outer diameter arc slide calliper rule 1 are provided with protractor 2, the base of protractor 2 is positioned on the arc tangent line of impeller outer diameter arc slide calliper rule 1, the camber line of impeller outer diameter arc slide calliper rule 1 is the camber line at 60 degree angles, and the base mark an angle of 90 degrees of protractor marks to 180 degree angles along camber line; Blade external diameter arc slide calliper rule 3 are provided with positioning rule 4, and positioning rule 4 is positioned on the radius extension line of blade external diameter arc slide calliper rule 3, and the camber line of blade external diameter arc slide calliper rule 3 is the camber line of an angle of 90 degrees.
As shown in Figure 3, impeller outer diameter arc slide calliper rule 1 are snapped on the impeller outer diameter, blade external diameter arc slide calliper rule 3 are snapped on the blade outer arc, can be from the mark indicating graduation on the protractor 2 of impeller outer diameter arc slide calliper rule 1, read the angle of giving vent to anger of this impeller, the impeller air-out angle in the diagram is 165 degree.
Claims (4)
1, a kind of instrument for measuring impeller air-out angle is characterized in that being made up of impeller outer diameter arc slide calliper rule and blade external diameter arc slide calliper rule, and impeller outer diameter arc slide calliper rule are provided with protractor, and the base of protractor is positioned on the arc tangent line of impeller outer diameter arc slide calliper rule; Blade external diameter arc slide calliper rule are provided with positioning rule, and positioning rule is positioned on the radius extension line of blade external diameter arc slide calliper rule.
2, instrument for measuring impeller air-out angle according to claim 1 is characterized in that the base of protractor marks an angle of 90 degrees, marks to 180 degree angles along camber line.
3, instrument for measuring impeller air-out angle according to claim 1 and 2, the camber line that it is characterized in that impeller outer diameter arc slide calliper rule are the camber line at 60 degree angles.
4, instrument for measuring impeller air-out angle according to claim 3 is characterized in that the camber line of blade external diameter arc slide calliper rule is the camber line of an angle of 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200199373U CN201181198Y (en) | 2008-04-03 | 2008-04-03 | Air-out angle measuring instrument of impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200199373U CN201181198Y (en) | 2008-04-03 | 2008-04-03 | Air-out angle measuring instrument of impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181198Y true CN201181198Y (en) | 2009-01-14 |
Family
ID=40250697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200199373U Expired - Fee Related CN201181198Y (en) | 2008-04-03 | 2008-04-03 | Air-out angle measuring instrument of impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181198Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272132A (en) * | 2020-03-31 | 2020-06-12 | 中国航发动力股份有限公司 | Detection device and detection method for rotation angle of adjustable flow blade |
-
2008
- 2008-04-03 CN CNU2008200199373U patent/CN201181198Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272132A (en) * | 2020-03-31 | 2020-06-12 | 中国航发动力股份有限公司 | Detection device and detection method for rotation angle of adjustable flow blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20110403 |