CN102788547B - Measuring device for mounting angles of blades of axial flow fan - Google Patents
Measuring device for mounting angles of blades of axial flow fan Download PDFInfo
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- CN102788547B CN102788547B CN201210296186.0A CN201210296186A CN102788547B CN 102788547 B CN102788547 B CN 102788547B CN 201210296186 A CN201210296186 A CN 201210296186A CN 102788547 B CN102788547 B CN 102788547B
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- flow fan
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Abstract
The invention discloses a measuring device for mounting angles of blades of an axial flow fan. The measuring device comprises a connecting rod, a reference rod and a measuring long rod are respectively perpendicularly mounted at two ends of the connecting rod, the measuring long rod is perpendicular to a plane consisting of the reference rod and the connecting rod, an indicator is perpendicularly fixedly arranged at one end of the measuring long rod, the indicator and the reference rod are perpendicular to each other, a graduated disc is further perpendicularly mounted at one end of the measuring long rod, is abutted to the indicator and can rotate left and right around a mounting point, the bottom edge of the graduated disc is flat, and graduation values are marked on the graduated disc. During usage, the measuring device has the advantages that a measuring mode is visual, simple and reliable, measurement accuracy is improved, and the mounting angles of the blades of the axial flow fan are effectively ensured to meet designed requirements.
Description
Technical field
The present invention relates to axial flow blower, refer more particularly to the measurement mechanism of axial-flow fan blade setting angle.
Background technology
Axial flow blower is widely used in air-conditioning and other multiple electric equipment that is used for ventilation and heat.Axial-flow fan blade setting angle is very important technical indicator in production technology, and the setting angle of blade directly affects the important parameters such as the air quantity, blast, noise of axial flow blower; Due to blade, the overwhelming majority is on-plane surface, cannot directly measure with conventional surveying instrument.Therefore, adopting the measuring method of simple and reliable axial-flow fan blade setting angle is the key measure that ensures blades installation precision.
The measuring method of at present conventional axial-flow fan blade setting angle is: height, blade diameter direction length and the blade chord length of first measuring the relative blade rack plane of blade, then according to triangle geometric ways, calculate the setting angle value of axial-flow fan blade.
The shortcoming that the measuring method of above-mentioned axial-flow fan blade setting angle exists is: the parameter of measurement is more, measures complexity, and difficulty in computation is large, and the error of bringing is thus larger, and the angle-data obtaining is not directly perceived.
Summary of the invention
The object of this invention is to provide the measurement mechanism of the axial-flow fan blade setting angle that a kind of metering system is directly perceived, simple and reliable and accuracy of measurement is higher.
For achieving the above object, the present invention has adopted following technical scheme.
The measurement mechanism of axial-flow fan blade setting angle, be characterized in: comprising: connecting link, be vertically installed with respectively baseline rod at the two ends of connecting link and measure stock, and measure the plane of stock perpendicular to baseline rod and connecting link composition, vertically be fixedly installed pointer in one end of measuring stock, and pointer is mutually vertical with baseline rod, also be vertically installed with index dial in one end of measuring stock, described index dial also can be around mounting points left-right rotation near pointer, described index dial base is smooth, and index dial subscript is marked with scale value.
Further, the measurement mechanism of aforesaid axial-flow fan blade setting angle, wherein: described scale value center is 0 degree, marking CW is to the right clockwise direction, mark CCW left counterclockwise, and in the time that index dial base is parallel with baseline rod, pointer is indicated in 0 degree position.
Beneficial effect of the present invention: use measurement mechanism of the present invention, metering system is directly perceived, simple and reliable, overcome the large shortcoming of measurement complexity, difficulty in computation that indirect measurement brings, improve the accuracy of measuring, can guarantee better that the setting angle of axial-flow fan blade meets designing requirement.
Brief description of the drawings
Fig. 1 is the structural representation of the measurement mechanism of axial-flow fan blade setting angle of the present invention.
Fig. 2 uses measurement mechanism of the present invention to measure the method schematic diagram of axial-flow fan blade setting angle.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the measurement mechanism of axial-flow fan blade setting angle of the present invention is further described.
Shown in Figure 1, the measurement mechanism of axial-flow fan blade setting angle of the present invention, comprise: connecting link 2, be vertically installed with respectively baseline rod 1 at the two ends of connecting link 2 and measure stock 3, and measure the plane that stock 3 forms perpendicular to baseline rod 1 and connecting link 2, vertically be fixedly installed pointer 5 in one end of measuring stock 3, and pointer 5 is mutually vertical with baseline rod 1, also be vertically installed with index dial 4 in one end of measuring stock 3, described index dial 4 also can be around mounting points 43 left-right rotation near pointer 5, described index dial 4 bases 41 are smooth, index dial 4 subscripts are marked with scale value, described scale value center is 0 degree, marking CW is to the right clockwise direction, mark CCW left counterclockwise, and when index dial 4 bases 41 are when parallel with baseline rod 1, pointer 5 is indicated in 0 degree position.The length of described measurement stock 3 can be adjusted according to different leaf blade sizes, when leaf blade is large, measure stock 3 relatively long, leaf blade hour measurement stock 3 is relatively short, and to ensure in the time that baseline rod 1 is positioned on blade rack, index dial 4 bases 41 are positioned on leaf blade.
Use the method for measurement mechanism measurement axial-flow fan blade setting angle of the present invention as shown in Figure 2, baseline rod 1 is close proximity to blade rack plane 6, measure stock 3 along leaf blade 7 radial direction, the base of index dial 4 41 is close proximity to blade 7 surfaces, index dial 4 turns over certain angle around the relative pointer 5 of mounting points 43, being pointer 5 indicating graduations, is exactly the setting angle of blade 7.
Use measurement mechanism of the present invention, metering system is directly perceived, simple and reliable, overcome the large shortcoming of measurement complexity, difficulty in computation that indirect measurement brings, improve the accuracy of measuring, and the needs of very applicable suitability for industrialized production, can guarantee that the setting angle of axial-flow fan blade meets designing requirement better.
Claims (2)
1. the measurement mechanism of axial-flow fan blade setting angle, it is characterized in that: comprising: connecting link, be vertically installed with respectively baseline rod at the two ends of connecting link and measure stock, and measure the plane of stock perpendicular to baseline rod and connecting link composition, vertically be fixedly installed pointer in one end of measuring stock, and pointer is mutually vertical with baseline rod, also be vertically installed with index dial in one end of measuring stock, described index dial also can be around mounting points left-right rotation near pointer, described index dial base is smooth, and index dial subscript is marked with scale value; In the time that baseline rod is positioned on blade rack, index dial base is positioned on fan blade.
2. the measurement mechanism of axial-flow fan blade setting angle according to claim 1, it is characterized in that: described scale value center is 0 degree, marking CW is to the right clockwise direction, mark CCW left counterclockwise, and in the time that index dial base is parallel with baseline rod, pointer is indicated in 0 degree position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296186.0A CN102788547B (en) | 2012-08-20 | 2012-08-20 | Measuring device for mounting angles of blades of axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296186.0A CN102788547B (en) | 2012-08-20 | 2012-08-20 | Measuring device for mounting angles of blades of axial flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788547A CN102788547A (en) | 2012-11-21 |
| CN102788547B true CN102788547B (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210296186.0A Expired - Fee Related CN102788547B (en) | 2012-08-20 | 2012-08-20 | Measuring device for mounting angles of blades of axial flow fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN102788547B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567349A (en) * | 2019-09-22 | 2019-12-13 | 中国航发沈阳发动机研究所 | stator blade rotation angle measuring structure and calibration method |
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| CN104655054B (en) * | 2013-11-20 | 2017-09-29 | 格力电器（合肥）有限公司 | Cross-flow fan blade dislocation angle measuring method and measuring device thereof |
| CN103630034B (en) * | 2013-11-29 | 2016-08-17 | 四川成发航空科技股份有限公司 | Spindle-type blade general combination measuring tool and the method measuring spindle-type blade |
| CN104713455B (en) * | 2013-12-11 | 2018-09-28 | 惠阳航空螺旋桨有限责任公司 | Blade angle degree detection instrument |
| CN103982379B (en) * | 2014-05-29 | 2016-07-27 | 国电联合动力技术有限公司 | A kind of fan blade zero degree established angle scaling method |
| CN105180778A (en) * | 2014-06-04 | 2015-12-23 | 北京亿仁赛博医疗科技研发中心有限公司 | Field angle measurement device |
| CN105606022B (en) * | 2015-11-24 | 2018-08-21 | 山东禹王生态食业有限公司 | A kind of nozzle detection device and method |
| CN109211068A (en) * | 2018-09-12 | 2019-01-15 | 中国航发湖南动力机械研究所 | Angle measurement unit |
| CN112081720A (en) * | 2019-05-30 | 2020-12-15 | 高华才 | Fan defect test detection control method for wind power plant |
| CN112484682A (en) * | 2020-11-05 | 2021-03-12 | 中国航发四川燃气涡轮研究院 | Measuring device and measuring method for adjustable blade installation angle |
| CN114909186A (en) * | 2021-02-08 | 2022-08-16 | 中国航发商用航空发动机有限责任公司 | Impeller machinery and aeroengine |
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| CN201607203U (en) * | 2009-11-26 | 2010-10-13 | 浙江金盾风机风冷设备有限公司 | Blade angle measurement device of metro tunnel fan |
| CN201707019U (en) * | 2010-06-05 | 2011-01-12 | 陈宁 | Adjustable corner ruler for oilfield pipeline |
| CN201731873U (en) * | 2010-05-25 | 2011-02-02 | 周花兰 | Goniometer |
| CN102052891A (en) * | 2010-12-08 | 2011-05-11 | 殷小恒 | Instrument for measuring torsion angle of wiper arm |
| CN202885742U (en) * | 2012-08-20 | 2013-04-17 | 江苏富丽华通用设备有限公司 | Measurement apparatus for axial-flow fan-blade installation angle |
-
2012
- 2012-08-20 CN CN201210296186.0A patent/CN102788547B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201607203U (en) * | 2009-11-26 | 2010-10-13 | 浙江金盾风机风冷设备有限公司 | Blade angle measurement device of metro tunnel fan |
| CN201731873U (en) * | 2010-05-25 | 2011-02-02 | 周花兰 | Goniometer |
| CN201707019U (en) * | 2010-06-05 | 2011-01-12 | 陈宁 | Adjustable corner ruler for oilfield pipeline |
| CN102052891A (en) * | 2010-12-08 | 2011-05-11 | 殷小恒 | Instrument for measuring torsion angle of wiper arm |
| CN202885742U (en) * | 2012-08-20 | 2013-04-17 | 江苏富丽华通用设备有限公司 | Measurement apparatus for axial-flow fan-blade installation angle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567349A (en) * | 2019-09-22 | 2019-12-13 | 中国航发沈阳发动机研究所 | stator blade rotation angle measuring structure and calibration method |
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| Publication number | Publication date |
|---|---|
| CN102788547A (en) | 2012-11-21 |
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Address after: Le Yu town Zhangjiagang city Suzhou city Jiangsu province 215622 Mega Xihuan Road No. 10 Jiangsu Furama General Equipment Co. Ltd. Patentee after: Jiangsu Fulihua general equipment Limited by Share Ltd Address before: Le Yu town Zhangjiagang city Suzhou city Jiangsu province 215622 Mega Xihuan Road No. 10 Jiangsu Furama General Equipment Co. Ltd. Patentee before: Jiangsu Fulihua General Equipment Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |