A verticality measuring device for the mouth of a single-cantilever pipeline of an aero-engine

Abstract

The invention discloses an aeroengine single cantilever pipeline pipe nipple portion verticality measuring device comprising a positioning plate; the positioning plate is provided with a positioning block fixedly connected with the aeroengine combustion chamber sheath; the positioning plate is also provided with a shaft sleeve; the shaft sleeve is arranged right below the pipe nipple part; a positioning shaft is arranged in the shaft sleeve so as to form sliding matching, and the fitting gap between the shaft sleeve and the positioning shaft is not greater than 0.01mm; the positioning shaft upper portion is provided with a thread ring gauge sleeved with the pipe nipple part; the device also comprises a measuring mechanism used for measuring the gap between the shaft sleeve and the positioning plate contact end face. The device can directly measure the single cantilever pipeline pipe nipple part verticality on a combustion chamber unit assembly, is simple in structure, easy to use, andfast in measuring speed.

Description

technical field [0001] The invention belongs to the technical field of aero-engine detection; in particular, it relates to a verticality measuring device for a single-cantilever pipe joint nozzle of an aero-engine. Background technique [0002] The traditional method of testing the verticality of the nozzle of the single cantilever pipeline of the aero-engine is: firstly, the unit body assembly of the combustion chamber needs to be hoisted on the platform, and then the unit body assembly should be raised by a block of equal height, and the nozzle of the single cantilever pipe should be raised. The end face is divided into three sections, and the height dimension from the end face of the pipe joint to the platform is indirectly measured to ensure the assembly level of the end face of the single cantilever pipe joint. . Although this traditional detection method can realize the measurement of the verticality dimension of the single cantilever pipeline pipe joint part, it is t...

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Problems solved by technology

Although this traditional detection method can realize the measurement of the verticality dimension of the single cantilever pipeline pipe joint part, it is time-consuming and laborious to operate, and it is not easy to pass the test. It needs to be disassembled and assembled many times to ensure the single cantilever pipeline pipe joint position. The assembly level of the end face, the average measurement time for each adjustment is about 2 to 3 hours, the operation is extremely inconvenient, and the unqualified measurement results caused by human factors account for a large proportion

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