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Method for measuring eccentricity of regular hexagonal cross section shaft

A measurement method and cross-sectional axis technology, applied in the direction of measuring devices, instruments, etc., can solve problems such as non-fixed values, and achieve the effect of high measurement accuracy and simple and convenient measurement method

Active Publication Date: 2020-03-24
JILIN UNIV
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Problems solved by technology

However, the cross section of the hexagonal axis is hexagonal, and the distance from each point on the side to the centroid is not a fixed value, and its value is between the radius of the inscribed circle and the radius of the circumscribed circle of the hexagon, so the dial indicator cannot be observed by rotation Jumping this traditional measurement method to find the eccentricity of each place requires an efficient and professional measurement method to measure the eccentricity of the hexagonal axis to meet the needs of practical production

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  • Method for measuring eccentricity of regular hexagonal cross section shaft
  • Method for measuring eccentricity of regular hexagonal cross section shaft
  • Method for measuring eccentricity of regular hexagonal cross section shaft

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 , 2 As shown, when measuring, place one end of the flat-folding tappet type detection mechanism (2) close to the hexagonal shaft (3), and be located under the section of the hexagonal shaft (3) to be measured, and at the same time place the displacement sensor (1) on the detection mechanism ( 2) Below the other end. Set the center of rotation of the flat-folding tappet type detection mechanism (2) as O, the geometric center of the section to be measured by the hexagonal shaft (3) is O", and the center of rotation at the top of the section is O'. Rotate the hexagonal shaft (3) , so that it rotates around O', the detection mechanism (2) will swing around its rotation center O along with the hexagonal axis (3), and the displacement sensor (1) records the Y-axis direction swing displacement value of the detection mechanism (2) in real time.

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Abstract

The invention provides a method for measuring the eccentricity of a regular hexagonal cross section shaft. The eccentricity of the regular hexagonal cross section shaft can be accurately and conveniently measured by using a flat-folding tappet type detection mechanism. One end of the flat-folding tappet type detection mechanism abuts against the hexagonal shaft and is located below the to-be-detected section of the hexagonal shaft, and m a displacement sensor is placed below the other end of the detection mechanism; the hexagonal shaft is rotated, the detection mechanism swings around the rotation center along with the hexagonal shaft, and the displacement sensor records the swing displacement value of the detection mechanism in real time; and a function relational expression between the predicted eccentricity and deflection angle and known parameters and displacement sensor indication values is deduced according to the geometrical relationship of each part and mathematical transformation. The measuring method is simple and convenient, the measuring precision is high, and an effective solution is provided for engineering problems such as hexagonal shaft straightness measurement andhexagonal shaft straightening.

Description

technical field [0001] The invention relates to a method for measuring shaft eccentricity, in particular to a method for measuring shaft eccentricity of a regular hexagonal section. Background technique [0002] The transmission shaft is a key part of mechanical equipment transmission, and the straightness of its axis directly affects the performance of the equipment. If the transmission shaft is bent and deformed, that is, when the axis straightness error is large, the equipment will have vibration, wear, noise and other faults, and the service life will be shortened. It will also be greatly reduced, so the equipment has higher requirements on the straightness of the axis of the drive shaft. The regular hexagonal cross-section shaft, also known as the hexagonal shaft, has the advantages of good mechanical properties, convenient processing, and high material utilization rate. It is widely used as the transmission shaft of various equipment. The straightness of the axis also ...

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Application Information

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IPC IPC(8): G01B21/24
CPCG01B21/24
Inventor 裴永臣谢海量关景晗夏峥嵘
Owner JILIN UNIV
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