An auxiliary measuring device for the outer diameter of the rotor blade tip of an engine high-pressure turbine

Abstract

The present invention relates to the aviation fuel engine dimension measurement equipment design, in particular to an engine high voltage turbine rotor tip external diameter auxiliary measurement device. The auxiliary measurement device comprises an upper clamping plate, a lower clamping plate and two supporting screws, wherein the upper clamping plate is in snap joint with a to-be-measured blade upper edge plate via a first fixing part, and the other end of the upper clamping plate is equipped with a first installing part and a second installing part separately; the lower clamping plate is in snap joint with a to-be-measured blade lower edge plate via a second fixing part, and the end part of the other end of the lower clamping plate is in detachable connection with the end part of the other end of the upper clamping plate; the two supporting screws are arranged in the threaded holes of the first and second installing parts symmetrically, the axial leads of the two supporting screws are parallel with the tenon central lines of the corresponding auxiliary blades respectively, and the screw-in directions of the two supporting screws both face the center of a turbine rotor. The engine high voltage turbine rotor tip external diameter auxiliary measurement device of the present invention can realize the external supporting elimination of the external diameter clearance of a high voltage turbine blade and the accurate positioning of the blade measurement positions to thereby realize the high-precision measurement of the high voltage turbine tip external diameter.

Description

technical field [0001] The invention relates to the design of dimension measuring equipment for aviation fuel engines, in particular to an auxiliary measuring device for the outer diameter of the blade tip of the high-pressure turbine rotor of the engine. Background technique [0002] As the core component of an aero-engine, the high-pressure turbine rotor has a direct impact on the performance of the high-vortex rotor, and has an important impact on the exhaust temperature, working efficiency, leakage seal, and vibration performance of the aero-engine. The key dimension parameters of major parts of aero-engines, accurate measurement of the size of the outer diameter of high-vortex blades, is of great significance for studying the motion characteristics of high-vortex rotors of aero-engines, accurately controlling their operation rules, and improving the performance of the engine. [0003] However, if figure 1 As shown, due to the special manufacturing and assembly methods ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an auxiliary measuring device for the outer diameter of the blade tip of the high-pressure turbine rotor of the engine, so as to solve at least one technical problem existing in the existing measuring method

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