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Device and method for measuring axial dimension of aero-engine rotor

An aero-engine, axial dimension technology, applied in mechanical measuring devices, measuring devices, using mechanical devices, etc., can solve problems such as large measurement errors, and achieve the effects of high accuracy, high measurement accuracy, and good versatility

Pending Publication Date: 2022-02-01
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology

[0005] The invention provides a measuring device and method for the axial dimension of an aero-engine rotor to solve the problems existing in measuring the axial dimension of an engine rotor containing a centrifugal or mixed-flow integral impeller in the existing method for measuring the axial dimension of the rotor. Technical problems with large measurement errors

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  • Device and method for measuring axial dimension of aero-engine rotor
  • Device and method for measuring axial dimension of aero-engine rotor
  • Device and method for measuring axial dimension of aero-engine rotor

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Embodiment Construction

[0043] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0044] Such as Figure 4 As shown, a preferred embodiment of the present invention provides a device for measuring the axial dimension of an aero-engine rotor, comprising:

[0045] Measuring table, used to play a supporting role;

[0046] The rotor coaxial device is arranged on the measuring platform, used to support the front and rear fulcrums of the assembled rotor assembly, and ensure the coaxiality of the rotors of all stages of the rotor assembly;

[0047] The blade limiting device is arranged on the rotor coaxial device, and is used for circumferentially limiting the blades of the rotor;

[0048] A three-coordinate measuring device is arranged on the measuring table and is used for measuring the axial dimension of the rotor assembly.

[0049] Among them, ...

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Abstract

The invention discloses a device and a method for measuring an axial dimension of an aero-engine rotor. The device can achieve the assembly of all parts of a rotor combination, can apply axial loading, better accords with the actual working state of the rotor, and is higher in measurement result accuracy. The rotor coaxial device is used for supporting front and rear fulcrums of the assembled rotor combination so that the fact that all stages of rotors of the rotor combination are coaxial is ensured, and the problem of axial deviation of the rotors caused by single-point support is avoided. The blade limiting device is used for circumferentially limiting the blade of the rotor so that the problem that a measurer needs to repeatedly confirm a measuring point due to the fact that the blade is not on a measuring head movement track of the three-coordinate measuring device or the measuring head is not in contact with the blade is solved, and the measuring efficiency is improved. The three-coordinate measuring device can complete the measurement of all axial dimensions in the same rotor state, does not need excessive measurement auxiliary tools, simplifies the dimension chain calculation, and is better in universality.

Description

technical field [0001] The invention relates to the technical field of aeroengine assembly, in particular to a device for measuring the axial dimension of an aeroengine rotor, and in particular to a method for measuring the axial dimension of an aeroengine rotor. Background technique [0002] The structure of the aero-engine is complex and there are a large number of parts. To obtain the best efficiency, it is necessary to strictly control the rotor-stator clearance. At present, the assembly of aero-engines usually adopts the method of separately measuring the size of the rotor and stator at the mating place, and adjusting the clearance by adjusting pads or replacing components on the dimensional chain, so as to control the overall assembly accuracy of the engine. However, there are mainly two methods for measuring the axial dimension of an aero-engine rotor, one is a single-piece measurement method, and the other is a partial combination measurement method. Among them, the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/04
CPCG01B21/04G01B5/003
Inventor 覃莺王富宏吴剑马江林邓乐富张纯
Owner CHINA HANGFA SOUTH IND CO LTD
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