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Roundness measuring instrument and roundness measuring method

A roundness measuring instrument and technology for measuring objects, which are applied in the field of measurement and can solve problems such as large measurement errors, hidden dangers in production safety, and reduced pressure bearing capacity.

Pending Publication Date: 2021-09-07
福建省锅炉压力容器检验研究院漳州分院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the manufacturing process and actual use of circular pressure-bearing equipment such as pressure vessels and boilers, it is necessary to measure the out-of-roundness of the cylindrical joints of this type of equipment to ensure that the standard requirements are met and to prevent the pressure-bearing equipment from being out of round during actual use. If the pressure exceeds the standard, the pressure bearing capacity will decrease, and there will be certain hidden dangers in production safety.
At present, the traditional measurement method is to use a tape measure or a standard sample to measure, and the traditional measurement method to measure the out-of-roundness of circular pressure-bearing equipment has a large error

Method used

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  • Roundness measuring instrument and roundness measuring method
  • Roundness measuring instrument and roundness measuring method
  • Roundness measuring instrument and roundness measuring method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to Figure 1 to Figure 3 , a roundness measuring instrument, comprising a circular pressure-bearing device, an electronic range finder 1, a display and a positioning installation assembly, the electronic range finder 1 is electrically connected to the display, and the electronic range finder 1 of this embodiment is a two-way infrared measurement The range meter adopts a two-way infrared range finder, which can not only improve the measurement efficiency, but also compare the distances measured by two infrared range finders in different directions, thereby further improving the roundness measurement accuracy of circular pressure-bearing equipment. Accuracy. The positioning installation assembly includes a rotating part 2, a center positioning bracket and a mounting bracket. The rotating part 2 is arranged on the center positioning bracket and the center positioning bracket can be adjusted according to the inner diameter of the circular pressure-bearing equipment wh...

Embodiment 2

[0048] refer to Figure 1 to Figure 3 , a roundness measuring instrument, comprising a circular pressure-bearing device, an electronic range finder 1, a display and a positioning installation assembly, the electronic range finder 1 is electrically connected to the display, and the electronic range finder 1 of this embodiment is a two-way infrared measurement The range meter adopts a two-way infrared range finder, which can not only improve the measurement efficiency, but also compare the distances measured by two infrared range finders in different directions, thereby further improving the roundness measurement accuracy of circular pressure-bearing equipment. Accuracy. The positioning installation assembly includes a rotating part 2, a center positioning bracket and a mounting bracket. The rotating part 2 is arranged on the center positioning bracket and the center positioning bracket can be adjusted according to the inner diameter of the circular pressure-bearing equipment wh...

Embodiment 3

[0052] A method for measuring roundness, comprising the steps of:

[0053] S1. Obtain the inner diameter of the object to be measured with a circular cross-sectional shape, adjust the length of the positioning rod 5 to make the length of the positioning rod 5 equal to the inner diameter of the object to be measured, and place the end of the positioning rod 5 against the inner wall of the object to be measured so that the rotating part 2 is located on the center axis of the corresponding circle of the object to be measured, and the mounting bracket is adjusted so that the mounting bracket and the center positioning bracket together form a mounting part assembled on the inner wall of the object to be measured;

[0054] S2, drive the rotating part 2, and record the data collected by the electronic range finder 1 when the rotating part 2 rotates around the central axis for one circle;

[0055] S3. Measure the roundness value of the object to be measured according to the collected ...

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Abstract

The invention discloses a roundness measuring instrument and a roundness measuring method. The roundness measuring instrument comprises an electronic distance measuring instrument and a positioning and mounting assembly, and the positioning and mounting assembly comprises a rotating part, a circle center positioning support and a mounting support; the rotating part is arranged on the circle center positioning support, the circle center positioning support can be adjusted according to the inner diameter of a to-be-measured object with a circular cross section so that the rotating part can be located on a circle center shaft of a circle corresponding to the to-be-measured object, the rotating part rotates around the circle center shaft, and the mounting support and the circle center positioning support jointly form a mounting part. The electronic distance measuring instrument is arranged on the rotating part, and the distance measuring direction of the electronic distance measuring instrument faces the direction perpendicular to the circle center axis. The roundness of the circular pressure-bearing equipment can be accurately measured.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a roundness measuring instrument and a roundness measuring method. Background technique [0002] In the manufacturing process and actual use of circular pressure-bearing equipment such as pressure vessels and boilers, it is necessary to measure the out-of-roundness of the cylindrical joints of this type of equipment to ensure that the standard requirements are met and to avoid the out-of-roundness of the pressure-bearing equipment in the actual use process. If the pressure exceeds the standard, the pressure bearing capacity will decrease, and there will be certain hidden dangers in production safety. At present, the traditional measurement method is to use a tape measure or a standard template to measure, and the traditional measurement method to measure the out-of-roundness of circular pressure-bearing equipment has a large error. Contents of the invention [0003] In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/2408
Inventor 简添福叶南昌李晖榕林东文郑志忠黄志鹏
Owner 福建省锅炉压力容器检验研究院漳州分院