CN101251361A - Instrument for measuring impeller air-out angle - Google Patents
Instrument for measuring impeller air-out angle Download PDFInfo
- Publication number
- CN101251361A CN101251361A CNA200810014942XA CN200810014942A CN101251361A CN 101251361 A CN101251361 A CN 101251361A CN A200810014942X A CNA200810014942X A CN A200810014942XA CN 200810014942 A CN200810014942 A CN 200810014942A CN 101251361 A CN101251361 A CN 101251361A
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- CN
- China
- Prior art keywords
- impeller
- diameter arc
- slide calliper
- calliper rule
- arc slide
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- 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.)
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Abstract
The invention relates to an impeller efflux angle measurement instrument which is used to measure the efflux angle of an impeller of a forward multi-blade centrifugal fan and belongs to an auxiliary device for the fan production. The invention consists of an impeller outer-diameter arc caliper and a blade outer-diameter arc caliper, wherein, the impeller outer-diameter arc caliper is provided with a protractor, the bottom edge of the protractor is positioned at the arc tangent of the impeller outer-diameter arc caliper; the blade outer-diameter arc caliper is provided with a set rule, and the set rule is positioned at the radius extension line of the blade outer-diameter arc caliper. The impeller efflux angle measurement instrument has a simple structure and convenient use, can quickly and accurately measure the efflux angle of the impeller, avoid the confused use of the impellers due to the fact that the efflux angles can not be distinguished, and is greatly convenient for quality inspection and production management.
Description
Technical field
The present invention relates to a kind of instrument for measuring impeller air-out angle, be used to measure the angle of giving vent to anger of forward direction centrifugal multiblade fan impeller, belong 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.
Summary of the invention
The object of the present invention is to provide a kind of instrument for measuring impeller air-out angle, can measure impeller air-out angle rapidly and accurately, stop to be hard to tell the impeller that occurs and obscure the use phenomenon, make things convenient for quality inspection and production management because of the angle of giving vent to anger.
Instrument for measuring impeller air-out angle of the present invention 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.
Instrument for measuring impeller air-out angle of the present invention, 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, one embodiment of the invention.
The blade external diameter arc slide calliper rule structural representation of Fig. 2, one embodiment of the invention.
Fig. 3, the structural representation of the embodiment of the invention 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 invention will be further described in conjunction with the foregoing description accompanying drawing.
As shown in Figure 1 and Figure 2, instrument for measuring impeller air-out angle of the present invention, 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. an 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 |
|---|---|---|---|
| CNA200810014942XA CN101251361A (en) | 2008-04-03 | 2008-04-03 | Instrument for measuring impeller air-out angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810014942XA CN101251361A (en) | 2008-04-03 | 2008-04-03 | Instrument for measuring impeller air-out angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101251361A true CN101251361A (en) | 2008-08-27 |
Family
ID=39954872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810014942XA Pending CN101251361A (en) | 2008-04-03 | 2008-04-03 | Instrument for measuring impeller air-out angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101251361A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486205A (en) * | 2015-12-27 | 2016-04-13 | 无锡透平叶片有限公司 | Angle measuring device controlling blade blank material rotation angle and control method |
| CN108844442A (en) * | 2018-06-26 | 2018-11-20 | 南通理工学院 | A kind of propeller blades angle detection fixture |
| CN109211068A (en) * | 2018-09-12 | 2019-01-15 | 中国航发湖南动力机械研究所 | Angle measurement unit |
| CN112461093A (en) * | 2020-11-12 | 2021-03-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Blade space angle measuring device of blade ring structure part |
-
2008
- 2008-04-03 CN CNA200810014942XA patent/CN101251361A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486205A (en) * | 2015-12-27 | 2016-04-13 | 无锡透平叶片有限公司 | Angle measuring device controlling blade blank material rotation angle and control method |
| CN108844442A (en) * | 2018-06-26 | 2018-11-20 | 南通理工学院 | A kind of propeller blades angle detection fixture |
| CN109211068A (en) * | 2018-09-12 | 2019-01-15 | 中国航发湖南动力机械研究所 | Angle measurement unit |
| CN112461093A (en) * | 2020-11-12 | 2021-03-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Blade space angle measuring device of blade ring structure part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |