Measuring device for mounting angles of blades of axial flow fan

A technology of blade installation and axial flow fan, applied in the direction of angle/taper measurement, which can solve the problems of difficult calculation, large error, and many measured parameters, and achieve the effect of overcoming the complexity of measurement, intuitive measurement method and improving accuracy

Inactive Publication Date: 2014-12-10
JIANGSU FULIHUA GENERAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The disadvantages of the above method of measuring the installation angle of the axial fan blades are: there are many parameters to be measured, the measurement is complicated, and the calculation is difficult, resulting in large errors, and the obtained angle data is not intuitive

Method used

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  • Measuring device for mounting angles of blades of axial flow fan
  • Measuring device for mounting angles of blades of axial flow fan

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Embodiment Construction

[0012] The device for measuring the blade installation angle of an axial flow fan according to the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0013] see figure 1 As shown, the measuring device for the blade installation angle of an axial flow fan according to the present invention includes: a connecting rod 2, a reference rod 1 and a long measuring rod 3 are vertically installed at both ends of the connecting rod 2, and the long measuring rod 3 is vertical On the plane formed by the reference rod 1 and the connecting rod 2, a pointer 5 is vertically fixed at one end of the long measuring rod 3, and the pointer 5 and the reference rod 1 are perpendicular to each other, and a dial 4 is vertically installed at one end of the long measuring rod 3 , the dial 4 is close to the pointer 5 and can rotate left and right around the installation point 43. The bottom edge 41 of the dial 4 is flat, and the sca...

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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 [0001] The invention relates to an axial flow fan, in particular to a measuring device for the blade installation angle of the axial flow fan. Background technique [0002] Axial flow fans are widely used in air conditioners and other electrical equipment for ventilation and heat dissipation. The installation angle of the blades of the axial flow fan is a very important technical index in the production process. The installation angle of the blades directly affects the air volume, wind pressure, noise and other important parameters of the axial flow fan; since most of the blades are non-planar, using conventional measuring instruments cannot be measured directly. Therefore, adopting a simple and reliable method for measuring the installation angle of axial flow fan blades is a key measure to ensure the accuracy of blade installation. [0003] At present, the commonly used method of measuring the installation angle of the axial fan blade is: firstly measure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/24
Inventor 苏品刚周爱进沈坤华
Owner JIANGSU FULIHUA GENERAL EQUIP
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