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Universal radial vibration sensor calibration device and method for special rotary machinery

A vibration sensor and rotating machinery technology, applied in the direction of using electrical devices, measuring devices, instruments, etc., to achieve the effects of reducing the probability of equipment damage, improving efficiency, and improving reliability

Pending Publication Date: 2021-08-27
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inconsistent size of each model, different sensor calibration devices need to be used for sensor calibration of different models, which brings some problems to the consistency of calibration results and the convenience of calibration. For the consistency and convenience of calibration, it is urgent to invent a radial vibration sensor calibration device and method that can be used in different models, which is of great significance for improving the vibration test accuracy of special rotating machinery

Method used

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  • Universal radial vibration sensor calibration device and method for special rotary machinery
  • Universal radial vibration sensor calibration device and method for special rotary machinery
  • Universal radial vibration sensor calibration device and method for special rotary machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 As shown, a general-purpose radial vibration sensor calibration device for special rotating machines includes a vibration sensor 1, and a calibration tool base 2, a sleeve 3, a fixed tube 4, and a linear differential head 5 connected in sequence.

[0048] The vibration sensor 1 is an eddy current displacement sensor, which is placed in the threaded through hole 22 of the calibration tool base 2, and its probe end extends into the outer cylinder 6 of the rotating machine, and its other end is connected to the threaded blind hole 31 of the casing 3. connect.

[0049] The calibration tool seat 2 is fixed on the rotary machine outer cylinder 6; its structure is as follows: figure 2 , 3 As shown, it is a cylindrical structure with a threaded through hole 22 formed in the middle, a protruding ring 21 is formed at one end, and a plurality of mounting holes 23 uniformly distributed along the circumference are formed on the protruding ring. Fixed assembly be...

Embodiment 2

[0054] Based on Embodiment 1, in order to adapt to different models in this embodiment, the structure of the calibration seat (2) is as follows Figure 4 , 5 As shown, the number of mounting holes (23) in this embodiment is four.

Embodiment 3

[0056] Based on Embodiment 1, a universal radial vibration sensor calibration method for special rotating machinery includes the following steps:

[0057] (i) Device assembly and sensor initial inspection

[0058] Select the corresponding calibration tool base 2 according to the special rotating machinery 7 models, according to figure 1, install the vibration sensor calibration device on the rotating machine outer cylinder 6 that has been loaded into the rotating machine 7, turn on the power switch, and use a multimeter to check whether the output voltage of the eddy current displacement sensor can change within 0V~10V;

[0059] (ii) Determining the testing starting point

[0060] Twist the straight-forward differential head to touch the vibration sensor to the surface of the rotating machine as the starting point, and use a multimeter to measure the voltage value at this time;

[0061] (iii) Calibrate the sensor

[0062] Twist the straight-forward differential head to keep...

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Abstract

The invention discloses a universal radial vibration sensor calibration device and method for special rotary machinery. The calibration device comprises a vibration sensor, and a calibration tool seat, a sleeve, a fixed pipe and a straight micrometer head which are connected in sequence, wherein the calibration tool seat is fixed on a rotary mechanical outer cylinder; the vibration sensor is arranged in the threaded through hole of the calibration tool seat, the probe end extends into the rotary mechanical outer cylinder, and the other end is connected with the threaded blind hole of the sleeve; one end of the sleeve is in threaded connection with the calibration tool seat, and the other end is in clearance fit with the fixed pipe. The straight micrometer head is in contact with the end face of the sleeve; the calibration method comprises the following steps: i) assembling the device and initially checking the sensor; (ii) determining a test starting point; (iii) calibrating a sensor; (iv) repeatedly calibrating; and v) performing data statistics. The universality of the calibration device is realized, the special rotating machinery with out-of-tolerance vibration amplitude is screened out, the operation reliability of the special rotating machinery is improved, the equipment damage rate of a professional equipment factory is greatly reduced, and the benefits of the factory are improved.

Description

technical field [0001] The invention belongs to the technical field of calibration of rotating machinery sensors, and in particular relates to a calibration device and method for radial vibration sensors common to special rotating machinery. Background technique [0002] Special rotating machinery has developed several generations of models, which have the characteristics of high speed and non-maintenance, which requires high reliability of rotating machinery. In order to make the processing machine more reliable, it is necessary to measure the vibration amplitude during the development stage of the rotating machinery. If the vibration amplitude is too large, it will directly affect the safety of the machine operation. At present, the vibration of rotating machinery is mainly measured by the vibration sensor installed in the radial direction of the rotating machinery. The particularity of the material and the interference of the vibration sensor by the internal magnetic fiel...

Claims

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Application Information

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IPC IPC(8): G01H11/06
CPCG01H11/06
Inventor 肖欧王迪谢熠晨和玉洁侯生超
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND