CN202885742U - Measurement apparatus for axial-flow fan-blade installation angle - Google Patents

Measurement apparatus for axial-flow fan-blade installation angle Download PDF

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Publication number
CN202885742U
CN202885742U CN 201220412574 CN201220412574U CN202885742U CN 202885742 U CN202885742 U CN 202885742U CN 201220412574 CN201220412574 CN 201220412574 CN 201220412574 U CN201220412574 U CN 201220412574U CN 202885742 U CN202885742 U CN 202885742U
Authority
CN
China
Prior art keywords
measurement
rod
axial
flow fan
pointer
Prior art date
Application number
CN 201220412574
Other languages
Chinese (zh)
Inventor
苏品刚
周爱进
沈坤华
Original Assignee
江苏富丽华通用设备有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏富丽华通用设备有限公司 filed Critical 江苏富丽华通用设备有限公司
Priority to CN 201220412574 priority Critical patent/CN202885742U/en
Application granted granted Critical
Publication of CN202885742U publication Critical patent/CN202885742U/en

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Abstract

The utility model discloses a measurement apparatus for an axial-flow fan-blade installation angle and the measurement apparatus comprises a connecting rod. A reference rod and a long measurement rod are vertically arranged on two ends of the connecting rod respectively. The long measurement rod is perpendicular to a plane formed by the reference rod and the connecting rod. A pointer is fixedly arranged on one end of the long measurement rod vertically and is perpendicular to the reference rod. A graduated disc is vertically mounted on one end of the long measurement rod, is abutted to the pointer and can rotate left and right around an installation point. A bottom edge of the graduated disc is flat and graduation values are marked on the graduated disc. The measurement apparatus has the advantages that a measurement manner is visual, simple and reliable; measurement accuracy is improved and the installation angles of the axial-flow fan blades are effectively ensured to accord with design requirements.

Description

The measurement mechanism of axial-flow fan blade setting angle
Technical field
The utility model relates to axial flow blower, refers more particularly to the measurement mechanism of axial-flow fan blade setting angle.
Background technology
Axial flow blower is widely used in the multiple electric equipment that is used for ventilation and heat of air-conditioning and other.The axial-flow fan blade setting angle is very important technical indicator in the production technology, and the setting angle of blade directly affects the important parameters such as the air quantity, blast, noise of axial flow blower; Because the blade overwhelming majority is on-plane surface, can't 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 guarantees the blades installation precision.
The measuring method of axial-flow fan blade setting angle commonly used is at present: height, blade diameter direction length and the blade chord length of at first measuring the relative blade rack of blade plane, then according to the 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 thus is larger, and the angle-data that obtains is not directly perceived.
The utility model content
The purpose of this utility model provides 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 utility model 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 stock perpendicular to the plane of baseline rod and connecting link composition, vertically be fixedly installed pointer at an end of measuring stock, and pointer is mutually vertical with baseline rod, also be vertically installed with index dial at an end of measuring stock, described index dial also can be around the mounting points left-right rotation near pointer, described index dial base is smooth, and the 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 to the right is clockwise direction, mark CCW left counterclockwise namely, and when the index dial base was parallel with baseline rod, the pointer indication was in 0 degree position.
The beneficial effects of the utility model: use measurement mechanism described in the utility model, metering system is directly perceived, simple and reliable, overcome the shortcoming that measurement is complicated, difficulty in computation is large that indirect measurement brings, improved the accuracy of measuring, can guarantee better that the setting angle of axial-flow fan blade meets designing requirement.
Description of drawings
Fig. 1 is the structural representation of the measurement mechanism of axial-flow fan blade setting angle described in the utility model.
Fig. 2 uses measurement mechanism described in the utility model to measure the method schematic diagram of axial-flow fan blade setting angle.
Embodiment
Be further described below in conjunction with accompanying drawing and the preferred embodiment measurement mechanism to axial-flow fan blade setting angle described in the utility model.
Referring to shown in Figure 1, the measurement mechanism of axial-flow fan blade setting angle described in the utility model, 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 stock 3 perpendicular to the plane of baseline rod 1 and connecting link 2 compositions, vertically be fixedly installed pointer 5 at an end of measuring stock 3, and pointer 5 is mutually vertical with baseline rod 1, also be vertically installed with index dial 4 at an 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, and index dial 4 subscripts are marked with scale value, and described scale value center is 0 degree, marking CW to the right is clockwise direction, mark CCW left namely counterclockwise, and when index dial 4 bases 41 and baseline rod 1 were parallel, pointer 5 was indicated 0 and is spent the position.The length of described measurement stock 3 can be adjusted according to different leaf blade sizes, measure stock 3 when leaf blade is large relatively long, leaf blade hour measurement stock 3 is relatively short, to guarantee that index dial 4 bases 41 are positioned on the leaf blade when baseline rod 1 is positioned on the blade rack.
Use the method for measurement mechanism measurement axial-flow fan blade setting angle described in the utility model 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 41 of index dial 4 is close proximity to blade 7 surfaces, index dial 4 turns over certain angle around mounting points 43 relative pointers 5, being pointer 5 indicating graduations, is exactly the setting angle of blade 7.
Use measurement mechanism described in the utility model, metering system is directly perceived, simple and reliable, overcome the shortcoming that measurement is complicated, difficulty in computation is large that indirect measurement brings, improved the accuracy of measuring, and the needs of very suitable suitability for industrialized production can guarantee better that the setting angle of axial-flow fan blade meets designing requirement.

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 stock perpendicular to the plane of baseline rod and connecting link composition, vertically be fixedly installed pointer at an end of measuring stock, and pointer is mutually vertical with baseline rod, also be vertically installed with index dial at an end of measuring stock, described index dial also can be around the mounting points left-right rotation near pointer, described index dial base is smooth, and the index dial subscript is marked with scale value.
2. the measurement mechanism of axial-flow fan blade setting angle according to claim 1 is characterized in that: described scale value center is 0 degree, and when the index dial base is parallel with baseline rod, pointer is indicated 0 and spent the position.
CN 201220412574 2012-08-20 2012-08-20 Measurement apparatus for axial-flow fan-blade installation angle CN202885742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220412574 CN202885742U (en) 2012-08-20 2012-08-20 Measurement apparatus for axial-flow fan-blade installation angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220412574 CN202885742U (en) 2012-08-20 2012-08-20 Measurement apparatus for axial-flow fan-blade installation angle

Publications (1)

Publication Number Publication Date
CN202885742U true CN202885742U (en) 2013-04-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220412574 CN202885742U (en) 2012-08-20 2012-08-20 Measurement apparatus for axial-flow fan-blade installation angle

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CN (1) CN202885742U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788547A (en) * 2012-08-20 2012-11-21 江苏富丽华通用设备有限公司 Measuring device for mounting angles of blades of axial flow fan
CN103245318A (en) * 2013-04-18 2013-08-14 李鸣贤 Manual ice observation and measurement instrument for high voltage line
CN103278076A (en) * 2013-06-08 2013-09-04 安徽中鼎金亚汽车管件制造有限公司 Angle detecting device of automobile power steering oil pipe joint stop pin
CN104296642A (en) * 2013-07-19 2015-01-21 北汽福田汽车股份有限公司 Device for measuring phase angle of universal drive shaft
CN109084730A (en) * 2018-07-11 2018-12-25 国家电网有限公司 A kind of elevation angle bolthole drill hole inclination measuring tool
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
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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788547A (en) * 2012-08-20 2012-11-21 江苏富丽华通用设备有限公司 Measuring device for mounting angles of blades of axial flow fan
CN102788547B (en) * 2012-08-20 2014-12-10 江苏富丽华通用设备有限公司 Measuring device for mounting angles of blades of axial flow fan
CN103245318A (en) * 2013-04-18 2013-08-14 李鸣贤 Manual ice observation and measurement instrument for high voltage line
CN103278076A (en) * 2013-06-08 2013-09-04 安徽中鼎金亚汽车管件制造有限公司 Angle detecting device of automobile power steering oil pipe joint stop pin
CN103278076B (en) * 2013-06-08 2016-07-27 安徽中鼎金亚汽车管件制造有限公司 A kind of angle detection device of automobile power steering oil pipe joint spacer pin
CN104296642A (en) * 2013-07-19 2015-01-21 北汽福田汽车股份有限公司 Device for measuring phase angle of universal drive shaft
CN109084730A (en) * 2018-07-11 2018-12-25 国家电网有限公司 A kind of elevation angle bolthole drill hole inclination measuring tool
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
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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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130417

Termination date: 20160820

CF01 Termination of patent right due to non-payment of annual fee