A Measuring Device for Measuring the Deformation of Engine Fuel Main Pipe

Abstract

The invention discloses a measuring device used for measuring deformation amount of a fuel header pipe of an engine, and belongs to the technical field of maintenance of aero-engines. The measuring device comprises a measuring disk, a cover plate, measuring blocks, supports and springs, wherein the multiple measuring blocks are installed on the measuring disk and can move in the direction perpendicular to the measuring disk, the measuring blocks are distributed on the measuring disk in an annular shape, the multiple supports are fixedly installed in the annular direction, where the measuring blocks are located, of the measuring disk, the supports and the measuring blocks are on the same side of the measuring disk, and the cover plate is arranged on the side, opposite to the measuring blocks, of the measuring disk; the springs are arranged between the measuring blocks and the cover plate. Top scale marks and side portion scale marks are arranged on the measuring blocks. The measuring device is simple in structure, numbers can be read conveniently and visually, the deformation amount of the fuel header pipe can be measured before a temperature field test, if the deformation amount of the fuel header pipe is too large, the fuel header pipe will be corrected through maintenance so that the deformation amount of the fuel header pipe can return to an allowed range, and therefore the percent of pass of the temperature field test is guaranteed, and operating cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of aero-engine maintenance, in particular to a measuring device for measuring the deformation of an engine fuel main pipe. Background technique [0002] As an important component of the engine combustion chamber, the fuel manifold of an aero-engine often deforms during its overhaul. Since the fuel main pipe adopts an annular brazing structure, the fuel main pipe is easily deformed due to high temperature during maintenance and brazing, and this deformation will directly lead to its failure in the temperature field test. Since the fuel main pipe can only be obtained through import at the present stage, and the price is very expensive, if the fuel main pipe is replaced because the temperature field test fails, it will cause huge economic losses. But there is no measuring device with simple structure, convenient and intuitive reading that can be effectively used to measure the deformation of the fuel main pipe...

AI Technical Summary

Problems solved by technology

Since the fuel main pipe adopts an annular brazing structure, the fuel main pipe is easily deformed due to high temperature during maintenance and brazing, and this deformation will directly lead to its failure in the temperature field test

Since the fuel main pipe can only be obtained through imports at this stage, and the price is very expensive, if the fuel main pipe is replaced because the temperature field test fails, it will cause huge economic losses

But at this stage, there is no measuring device with simple structure, convenient and intuitive reading, which can be effectively used to measure the deformation of the fuel main pipe.

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