Measuring device for exhaust area of engine turbine guider throat

Abstract

The invention relates to a measuring device for the exhaust area of an engine turbine guider throat, which comprises an outer housing, a supporting and locating mechanism, a measuring mechanism, a transmission mechanism and an auxiliary mechanism, wherein the outer housing comprises a first housing and a second housing; the supporting and locating mechanism comprises a locating rod and a supporting rod; the measuring mechanism comprises a measuring assembly for measuring the trapezoidal height of the throat, a measuring assembly for measuring the trapezoidal upper bottom of the throat, a measuring assembly for measuring the trapezoidal lower bottom of the throat, and a dial test indicator; the transmission mechanism comprises a first transmission lever, a first transmission rod, a first transmission plate, a second transmission rod, a second transmission plate, a third transmission rod, a second transmission lever and a spring lamination; and the auxiliary mechanism comprises a handle knob, a handle, a pressure lever and a force transferring pin. By using the measuring device, the deviation of the measured exhaust passage area of the engine turbine guider throat being relative to the cavity area of a standard part can be obtained directly, the measuring operation can be simplified, and the measuring efficiency can be enhanced.

Description

technical field [0001] The invention belongs to the field of area measuring instruments, in particular to a throat exhaust area measuring device of a turbine guider of an aircraft engine. Background technique [0002] Aircraft engine turbine guide is mainly composed of casing, mounting ring, vortex vanes and corresponding accessories. The throat exhaust area determines the performance of the engine. Therefore, when assembling the vortex vanes, the exhaust area of ​​each throat should be measured to determine If the total area is satisfied, if the area is unqualified, the installation angle of the blade should be adjusted, and the blade should not be fixed until the exhaust area of ​​the throat is adjusted to be qualified. The exhaust area of ​​the throat is determined by the exhaust channel of the throat, and the structure of the throat is as follows Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, its exhaust channel is a similar trapezoidal cavity (see Figure...

AI Technical Summary

Problems solved by technology

The existing technology usually uses three sets of measuring tools and three sets of standard parts to measure the three parameters of the upper bottom, lower bottom and height of the throat approximately trapezoidal, and then manually calculates the discharge of each throat according to the measured data. Gas area and total exhaust area, so the operation is cumbersome, the measurement efficiency is low, and it cannot meet the needs of production development

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