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Device for measuring coordinates of curved column for impeller blade of centrifugal pump

A technology of cylindrical coordinates and impellers, which is applied to parts, pumps, and pump control of elastic fluid pumping devices, can solve the problems of low precision and efficiency, and achieve the effect of improving measurement accuracy and efficiency and accurate positioning

Inactive Publication Date: 2014-06-11
XIANGYANG WU ER WU PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to propose a new three-dimensional measuring device to solve the problem of low accuracy and efficiency due to the manual positioning method when measuring the cylindrical coordinates of the impeller blade curved surface of the centrifugal pump

Method used

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  • Device for measuring coordinates of curved column for impeller blade of centrifugal pump
  • Device for measuring coordinates of curved column for impeller blade of centrifugal pump
  • Device for measuring coordinates of curved column for impeller blade of centrifugal pump

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Experimental program
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Effect test

Embodiment

[0064] Measuring process of the present invention: (illustration, measure Sulzer ZAP701-9800 impeller description)

[0065] Step 1. Measure the data of the back working surface of the impeller to obtain the three-dimensional cylindrical coordinate size of the back working surface

[0066] First, use the scales on the three vertical struts and the three horizontal struts to locate the center O of the impeller. The radius of the outer circle of the impeller is measured to be 920mm. When the scales on the three horizontal struts are all 460mm, the center O point of the impeller is found, and the position of the horizontal reference plane is determined.

[0067] Align the first radius ruler 18 with the 0° position on the angle ruler 5, and also allow the first radius ruler 18 to align with the 0° position on the blade, so that the 0° starting line has been found. According to the hydraulic expression method of the impeller, every 10° on the angle ruler 5 is taken as the equal ang...

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Abstract

The invention relates to a three-dimensional measurement device, in particular to a device for measuring coordinates of a curved column for an impeller blade of a centrifugal pump and belongs to the filed of three-dimensional curved size measurement. The device comprises the structure shown as a figure 2: a first vertical support rod, a first connecting block, a first boult, a first transverse support rod, a bevel protractor, a seven boult, a nut, a sixth boult, a triangular connecting bracket, a second transverse support rod, a second boult, a second connecting block, a second vertical support rod, a third boult, a third connecting block, a third transverse support rod, a third vertical support rod, a first radius ruler, a fourth boult, a fourth connecting block, a depth ruler, a second radius ruler, a fifth boult and a fifth connecting block. The device disclosed by the invention is mechanically linked, can be accurately positioned and replaces a poor measurement method for manual positioning in a traditional measurement technology; and the measuring precision and efficiency are improved.

Description

technical field [0001] The invention relates to a three-dimensional measuring device, in particular to a device for measuring the cylindrical coordinates of the blade curved surface of a centrifugal pump impeller, which belongs to the field of three-dimensional curved surface size measurement. Background technique [0002] When the centrifugal pump impeller blade needs to be inspected or reverse engineered, it is usually necessary to measure the three-dimensional size of the impeller, especially when the blade is an irregular surface, it is necessary to use professional mapping tools to measure the three-dimensional size of the blade. The professional drawing method of impeller hydraulic drawing is to use three-dimensional cylindrical coordinate representation. [0003] By measuring the cylindrical coordinates of the blade surface, it is possible to check whether the impeller mold conforms to the size specification of the drawing; it can also check whether the blade produced...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D15/00F04D29/22
Inventor 高杨朱俊涛万仁伟任丽娜黄琴
Owner XIANGYANG WU ER WU PUMP IND