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A Measuring Method of Shape Deviation of Spherical Head

A spherical head and measurement method technology, applied in the field of measurement, can solve the problems of inconvenient operation and high cost of head measurement, and achieve the effects of simplifying cumbersomeness, avoiding measurement errors, and high measurement efficiency

Active Publication Date: 2022-06-28
SHANXI YANG MEI CHEM IND MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention aims to solve the technical problems of high cost and inconvenient operation of the existing head measurement

Method used

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  • A Measuring Method of Shape Deviation of Spherical Head
  • A Measuring Method of Shape Deviation of Spherical Head
  • A Measuring Method of Shape Deviation of Spherical Head

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0044] refer to Figure 1 to Figure 2 , a method for measuring the shape deviation of a spherical head of the present invention comprises the following steps in turn:

[0045] 1) Place the end face of the spherical head on the ground, make the end face parallel to the ground, and support and fix it;

[0046] 2) Select multiple projection positions along a center line of the end face of the spherical head, and the projection points on the inner wall of the spherical head that correspond vertically to each projection position are the projection points;

[0047] 3), mea...

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Abstract

The invention relates to a measurement method, in particular to a method for measuring the shape deviation of a spherical head, aiming to solve the technical problems of high cost and inconvenient operation of the existing spherical head measurement. The following technical scheme is adopted: select multiple positions of a center line of the end face of the spherical head for projection, and through the detection of the projection distance in the vertical and horizontal directions, combined with the theoretical curve equation of the head itself, each projection point can be obtained And the coordinates of the corresponding points, and then obtain the unevenness of the head corresponding to each projection point position and the specific deviation value, and finally obtain the maximum shape deviation of the head and the simulated contour of the head.

Description

technical field [0001] The invention relates to a measurement method, in particular to a measurement method for the shape deviation of a spherical head. Background technique [0002] The head is the most critical part of the pressure vessel, among which the spherical head is one of the most commonly used heads. There are three common spherical heads: the first is the standard hemispherical shell; the second is the remaining part of the spherical shell after the part is truncated by a plane. The radius of the sphere; the third is a structure formed by adding a cylindrical body with a coaxial and equal diameter at the circular plane of the hemispherical shell, and the added part is a straight side segment. After the head is made, it needs to be measured to detect the shape deviation of the head. At present, it is generally necessary to make a head template, which is made according to the standard graphic size and the size is smaller than the internal size of the head. When m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/20
CPCG01B5/20
Inventor 段晓健李英杰咸耀龙杨宇仙笑笑宋宇光
Owner SHANXI YANG MEI CHEM IND MACHINERY
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