CN204479042U - A kind of digital display helicopter blade angular measurement bevel protractor - Google Patents
A kind of digital display helicopter blade angular measurement bevel protractor Download PDFInfo
- Publication number
- CN204479042U CN204479042U CN201520146078.4U CN201520146078U CN204479042U CN 204479042 U CN204479042 U CN 204479042U CN 201520146078 U CN201520146078 U CN 201520146078U CN 204479042 U CN204479042 U CN 204479042U
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- CN
- China
- Prior art keywords
- digital display
- arcuate member
- upper arcuate
- chi frame
- inclinator
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a kind of digital display helicopter blade angular measurement bevel protractor, comprise chi frame, upper arcuate member, digital display laser inclinator and level meter; Described digital display laser inclinator, described level meter and described upper arcuate member embed in described chi frame, and described upper arcuate member one end is fixed by set bolt, and the other end is rotatably connected with the stationary shaft on described chi frame; Described chi frame and described upper arcuate member are all in paddle-like cambered surface.The utility model according to blade curved face processing chi frame and upper arcuate member, and is fixed on blade by set bolt, in conjunction with closely firm, ensure that measuring accuracy; Obtain blade angle angle value through zeroing digital display laser inclinator, precision can reach 0.1 °.
Description
Technical field
The utility model belongs to bevel protractor, in particular to a kind of digital display helicopter blade angular measurement bevel protractor.
Background technology
The Measurement accuracy at helicopter blade angle is the key link of adjustment Helicopter flight performance, and existing blade angle survey instrument many employings pitch chi, is mainly used in model copter, there is measuring accuracy low, the defects such as yardstick is little, anhydrous flat adjusting function.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the utility model provides a kind of digital display helicopter blade angular measurement bevel protractor, and measuring accuracy is high, can horizontal adjustment.
Technical scheme: digital display helicopter blade angular measurement bevel protractor described in the utility model, comprises chi frame, upper arcuate member, digital display laser inclinator and level meter; Described digital display laser inclinator, described level meter and described upper arcuate member embed in described chi frame, and described upper arcuate member one end is fixed by set bolt, and the other end is rotatably connected with the stationary shaft on described chi frame.Level meter is used for the zero-bit of adjustment digital display laser inclinator, when the bubble of level meter is positioned at centre position, the zero-bit of adjustment digital display laser inclinator, bevel protractor be placed on the blade measuring position of helicopter and tighten set bolt, the displayed value reading digital display laser inclinator is the angle value of helicopter blade; Upper arcuate member can rotate around stationary shaft, unclamps set bolt, and arcuate member in rotation, is fixed by set bolt after adjusting.
Described chi frame and described upper arcuate member are provided with the cambered surface of mating with blade curve cambered surface.Chi frame and upper arcuate member are made according to helicopter blade curve cambered surface, and laminating degree is high, and fixed effect is better.
Described digital display laser inclinator and the alignment of described spirit level horizontal, ensure after alignment that adjustment is accurate.
Beneficial effect: compared with prior art, advantage of the present utility model:
1), when being fixed on blade by bevel protractor by set bolt according to the chi frame of blade curved face processing and upper arcuate member, in conjunction with closely firm, ensure that measuring accuracy.
2) upper arcuate member can around stationary shaft opening and closing, easy to use.
3) zero value correcting digital display laser inclinometer is convenient in the setting of level vial.
4) use of digital display laser inclinator can reading angular value directly perceived, in turn ensure that the precision of reading.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by accompanying drawing, technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to described embodiment.
Embodiment 1: digital display helicopter blade angular measurement bevel protractor as shown in Figure 1, comprises chi frame 1, upper arcuate member 2, digital display laser inclinator 3, level meter 4, set bolt 5, stationary shaft 6; Chi frame 1 and upper arcuate member 2 are according to helicopter blade curve curved face processing, upper arcuate member 2, digital display laser inclinator 3, level meter 4 all embed in chi frame 1, digital display laser inclinator 3, level meter 4 horizontal alignment, upper arcuate member 2 one end is fixed by set bolt 5, the other end is rotatably connected with the stationary shaft 6 on chi frame 1
The utility model is placed on surface level, when level meter 4 centring of level bubble, adjustment digital display laser inclinator 3 makes it zero, unclamps set bolt 5 and the utility model is placed on blade measuring position and tightens set bolt 5, reads digital display laser inclinator 3 displayed value and is blade angle angle value.Unclamp arcuate member 2 on set bolt 5 to rotate around stationary shaft 6, be convenient to regulate.
The utility model according to blade curved face processing chi frame 1 and upper arcuate member 2, and is fixed on blade by set bolt 5, in conjunction with closely firm, ensure that measuring accuracy; Obtain blade angle angle value through zeroing digital display laser inclinator 3, precision can reach 0.1 °.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (3)
1. a digital display helicopter blade angular measurement bevel protractor, is characterized in that: comprise chi frame, upper arcuate member, digital display laser inclinator and level meter; Described digital display laser inclinator, described level meter and described upper arcuate member embed in described chi frame, and described upper arcuate member one end is fixed by set bolt, and the other end is rotatably connected with the stationary shaft on described chi frame.
2. digital display helicopter blade angular measurement bevel protractor according to claim 1, is characterized in that: described chi frame and described upper arcuate member are provided with the cambered surface of mating with blade curve cambered surface.
3. digital display helicopter blade angular measurement bevel protractor according to claim 1, is characterized in that: described digital display laser inclinator and the alignment of described spirit level horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146078.4U CN204479042U (en) | 2015-03-13 | 2015-03-13 | A kind of digital display helicopter blade angular measurement bevel protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146078.4U CN204479042U (en) | 2015-03-13 | 2015-03-13 | A kind of digital display helicopter blade angular measurement bevel protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204479042U true CN204479042U (en) | 2015-07-15 |
Family
ID=53634830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146078.4U Expired - Fee Related CN204479042U (en) | 2015-03-13 | 2015-03-13 | A kind of digital display helicopter blade angular measurement bevel protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204479042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661944A (en) * | 2017-03-28 | 2018-10-16 | 南京梅山冶金发展有限公司 | The accurate adjusting apparatus of blower fan of cooling tower more blades and method |
-
2015
- 2015-03-13 CN CN201520146078.4U patent/CN204479042U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661944A (en) * | 2017-03-28 | 2018-10-16 | 南京梅山冶金发展有限公司 | The accurate adjusting apparatus of blower fan of cooling tower more blades and method |
| CN108661944B (en) * | 2017-03-28 | 2020-01-21 | 南京梅山冶金发展有限公司 | Device and method for accurately adjusting multiple blades of cooling tower fan |
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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: 20150715 Termination date: 20180313 |