A small horizontal axis wind turbine axial trust measuring device

An axial thrust, measuring device technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems of weak output signal, limited space, poor anti-interference ability, etc. The effect of strong interference ability and reliable operation

Pending Publication Date: 2018-02-02
YICHUN UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings and deficiencies of the prior art above, the present invention aims to provide a new type of axial thrust measuring device for a small horizontal axis wind turbine, which adopts a non-contact optical fiber sensor and uses a spring as a structure for biaxially connecting intermedi...

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  • A small horizontal axis wind turbine axial trust measuring device
  • A small horizontal axis wind turbine axial trust measuring device
  • A small horizontal axis wind turbine axial trust measuring device

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be noted that implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. In addition, the directional terms mentioned in the following embodiments, such as "upper", "lower", "front", "backward", "left", "right", "top", "bottom", etc., are only for reference The orientation of the graph. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0028] Such as figure 1 As shown, the small horizontal axis wind turbine axial thrust measuring device of the present invention includes a base 16 and a small horizontal axis wind turbine arranged on the top of the base 16. The small horizontal axis wind turbine includes a horizontal input shaft 2 and a hori...

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Abstract

The invention discloses a small horizontal axis wind turbine axial thrust measuring device, which comprises a base and a small horizontal axis wind turbine arranged on the top of the base. The small horizontal axis wind turbine includes a horizontal input shaft, a horizontal output shaft and a set On the impeller at the front end of the horizontal input shaft, an optical fiber sensor is installed on the top of the base. The horizontal input shaft can move axially backward when receiving axial thrust. An elastic body is installed in the hollow cylinder at the front end of the horizontal output shaft. The elastic body only When the horizontal input shaft is compressed by axial thrust, the sensing surface of the optical fiber sensor is facing the front or rear end face of the annular shoulder, and the optical fiber sensor is used to measure the position of the annular shoulder when the horizontal input shaft is subjected to axial thrust. The axial displacement can be calculated according to Hooke's law, and the elastic force of the elastic body is the axial thrust of the small wind turbine. The invention has the advantages of compact structure, convenient operation, reliable operation, high sensitivity, high measurement accuracy, strong anti-interference ability and long service life.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device for the axial thrust of a small horizontal axis wind turbine. Background technique [0002] At present, the axial thrust measurement device mainly uses the strain sensor. The existing measurement device mainly includes the following structures. The upper bearing transmits the axial force, and the strain gauge is pasted on the side of the measuring column perpendicular to the horizontal rotation axis. When the axial force is applied, the strain gauge deforms to measure the axial thrust; this structure is relatively simple, but convex The rotational friction between the shoulder and the bearing, as well as the sluggish response of the strain gauges, limit the sensitivity and accuracy of the measuring device. In the prior art, there is also such a structure that the strain gauges on the front and rear end faces of the elastic ring installed between the ends of the bearing ou...

Claims

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Application Information

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IPC IPC(8): G01L5/00
CPCG01L5/0038
Inventor 黄宸武许小明曾文武张水香易军萍周国芳
Owner YICHUN UNIVERSITY
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