Device for measuring throat area of guider of aero-engine

A technology of guide and measuring section, applied in the field of throat area measurement of aero-engine turbine guide, can solve problems such as low efficiency, cumbersome measurement process, inaccurate measurement, etc., and achieves improved work efficiency, simple operation process and high repeatability Effect

Active Publication Date: 2013-12-11
AECC AVIATION POWER CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the measurement process of this kind of device, each set of measuring tools needs independent positioning and measurement. Therefore, its positioning error and artificial measureme

Method used

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  • Device for measuring throat area of guider of aero-engine
  • Device for measuring throat area of guider of aero-engine
  • Device for measuring throat area of guider of aero-engine

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Embodiment Construction

[0020] This embodiment provides a measuring device for the throat area of ​​the first-stage guider of a low-pressure turbine of an aero-engine. refer to figure 1 , Points B and C indicate the measurement points of the throat width, and W is the measured width. refer to figure 2 , in the actual measurement, the throat width is carried out through n-n, p-p, m-m, q-q4 sections, the throat height is measured through G, D as the measurement point, and H is the measured height.

[0021] image 3 is the mechanical diagram of the measuring device. Parts 1, 2, 3, and 4 in the figure are lever assemblies for measuring four sections of n-n, p-p, m-m, and q-q respectively, and are installed on the positioning mandrel 12 . The positioning mandrel 12 is installed on the connecting plate 10, and the connecting plate 10 is connected with the rectangular bottom plate 9 by screws. Each section consists of two levers, measuring two points of the same section. Figure 4 A working schematic...

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Abstract

The invention belongs to the field of aero-engine detection, relates to measurement on the throat area of a turbine guider of an aero-engine, and discloses a device for measuring the throat area of the guider of the aero-engine. The device mainly comprises a base plate 9, a locating mandrel 12, N lever assemblies for measuring section widths, a lever for measuring section heights, 2N displacement sensors and a locating component. The device has the advantages that a locating system consistent with the six-point locating principle is adopted, and therefore the device is accurate in location during working, stable and reliable in measuring result and high in repeated accuracy; with the integrated structure of the N lever assemblies, the widths and heights of a plurality of sections of one channel can be measured at the same time through one-time location, location errors caused by measurement through a plurality of measuring tools are eliminated, and accumulation of manual measuring errors caused by repeated operation is reduced; meanwhile, the operation process is simple, and work efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of aero-engine detection and relates to the measurement of the throat area of ​​an aero-engine turbine guide. Background technique [0002] The throat area of ​​the primary guider of an aeroengine is an important parameter affecting the performance of the engine. Because the structure of the guide is complex, the measurement of its throat area becomes the key point in the engine manufacturing and assembly process. At present, the throat of an aero-engine guide is approximately trapezoidal in shape, and its area is calculated indirectly by measuring the width and height of different sections of the throat of the engine guide. The existing aero-engine guider throat area measurement devices mostly use mechanical caliper measuring tools. Measuring a guide requires multiple sets of measuring tools and multiple sets of standard parts. During work, measure the width and height of different sections of each channel for calc...

Claims

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Application Information

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IPC IPC(8): G01B5/26
Inventor 杨金明朱晓婵白海滨高锋利岳建武王俊牛西贵苏琳张春峰郭霞陈建伟池斌
Owner AECC AVIATION POWER CO LTD
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