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Measuring system for electrical runout amount of revolving body

A measurement system and runout technology, which is applied in the field of electric runout measurement system of rotating bodies, can solve the problems of low efficiency and low precision of manual measurement of runout, and achieve the effect of high flexibility and high measurement accuracy

Inactive Publication Date: 2013-09-18
ZHEJIANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the disadvantages of low efficiency and low precision of manual measurement of runout in the prior art, the present invention provides an electric runout measurement system of a rotating body that can realize online real-time measurement and high measurement accuracy

Method used

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  • Measuring system for electrical runout amount of revolving body
  • Measuring system for electrical runout amount of revolving body

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Embodiment Construction

[0026] With reference to accompanying drawing, further illustrate the present invention:

[0027] The system for measuring the electrical runout of a rotating body includes a measuring bracket 1, on which a laser displacement sensor 3 aligned with the measured rotating body 2 to measure the relative movement distance of the surface of the tested rotating body 2 is installed, and for A quasi-tested rotary body 2, an eddy current sensor 4 to measure the comprehensive runout of the measured rotary body surface, and a Hall sensor 5 aimed at the measured rotary body 2 to obtain the rotation angle of the measured rotary body 2; The measured rotating body 2 is provided with a mark 21 that can be recognized by the Hall sensor 5; the laser displacement sensor 3, the eddy current sensor 4 and the Hall sensor 5 are all connected to the processor, and the processing The electrical runout is obtained by subtracting the relative moving distance from the comprehensive runout of the device; ...

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Abstract

The invention relates to a measuring system for an electrical runout amount of a revolving body. The system comprise: a measurement support; a laser displacement sensor, which is installed on the measurement support and is used for aligning a measured revolving body to measure a relative displacement distance of a measured revolving body surface; a current vortex sensor, which is used for aligning the measured revolving body to measure a total indicated runout amount of the measured revolving body surface; and a hall sensor, which is used for aligning the measured revolving body and obtaining a rotation angle of the measured revolving body. Besides, a mark that is capable of being identified by the hall sensor is arranged on the measured revolving body; the laser displacement sensor, the current vortex sensor and the hall sensor are connected with a processor; the processor obtains an electrical runout amount by subtracting the relative displacement distance from the total indicated runout amount; the laser displacement sensor and the current vortex sensor are on a same circumference that is coaxial with the measured revolving body; and a linear that is formed by the hall sensor and the laser displacement sensor is in parallel with an axis of the measured revolving body. According to the invention, the system has advantages of on-line real-time measurement and high measuring precision and the like.

Description

technical field [0001] The invention relates to a system for measuring the electric runout of a revolving body. Background technique [0002] For a long time, scholars at home and abroad have conducted a lot of research on the measurement of relevant parameters of rotary parts, but there has been no ideal method and instrument for large-diameter measurement, especially in the machinery industry, large-scale precision measurement has not yet been well resolved. The object of the present invention is to research and develop relevant parameters such as the electrical runout of large-size revolving parts and the like through the construction of sensors. [0003] Electrical runout is an important evaluation index for the processing quality of precision rotary parts (such as the journal of the tested rotary body of a large rotor of a steam turbine), which is described in detail in the standard API 612 of the American Petroleum Institute. At present, the measurement of the mechani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B7/00
Inventor 曹衍龙杨将新赖海鸣陈小龙尹海李结冻
Owner ZHEJIANG UNIV
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