Device for measuring thicknesses of air inlet and outlet sides of turbine blade
A steam turbine blade and thickness measurement technology, which is applied to blade measurement, steam outlet thickness measurement, and blade entry, can solve the problems of high cost, low measurement accuracy, and low efficiency, and achieve simple structure, accurate measurement results, and reduced tooling cost effect
Inactive Publication Date: 2013-03-27
WUXI TURBINE BLADE
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Problems solved by technology
[0003] In view of the above problems, the present invention provides a thickness measuring device for the inlet and outlet sides of steam turbine
Method used
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[0011] see image 3 , The device of the present invention includes a standard block 1 and a pointed micrometer 2. The standard block 1 is in the shape of a "concave" shape. Concentric positioning holes 3 and 4 are symmetrically opened on both sides of the arm. The two ends of the pointed micrometer are measuring rods 5, 6 respectively pass through the positioning holes 3 and 4 respectively. The distance L from the center of the positioning holes 3, 4 to the inner wall 7 of the standard block is the distance from the position where the thickness of the inlet and outlet sides of the blade need to be measured to the outlet edge of the blade l .
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The invention provides a device for measuring thicknesses of air inlet and outlet sides of a turbine blade. The device can solve the problem that the existing measurement device and method is low in measurement precision, low in efficiency and high in cost. The device is characterized by comprising a standard block and a point micrometer, wherein the standard block is in a shape like a Chinese character 'ao' (concave), concentric positioning holes are symmetrically arranged on two lateral arms of the standard block, and measurement rods at two ends of the point micrometer respectively penetrate through the corresponding positioning holes.
Description
technical field [0001] The invention relates to the technical field of blade measurement, in particular to the field of thickness measurement of blade inlet and outlet steam sides, in particular to a device for measuring the thickness of steam turbine blade inlet and outlet sides. Background technique [0002] With the development of steam turbine blade design and manufacturing technology, the manufacturing accuracy and manufacturing requirements of blades are continuously improved, and the requirements for thickness measurement of the inlet and outlet sides are becoming more and more stringent. The thickness measurement requirements for the position of the inlet and outlet sides are often given in the design. ,See figure 1 and figure 2 as shown, figure 2 Middle d is the thickness of the position to be measured. Usually, manual scribing plus micrometer measurement, surface template scribing light leakage measurement and three-coordinate measurement are used for measurem...
Claims
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Inventor 贺明
Owner WUXI TURBINE BLADE
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