Method for checking assembling flexibility of long bolts between high-pressure rotor discs

A high-pressure rotor and inspection method technology, applied in the field of aero-engines, can solve the problems of large measurement errors, vague standard definitions, and inability to effectively evaluate the assembly quality of high-pressure compressor rotors.

Inactive Publication Date: 2020-03-27
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The standard definition is vague. For different operators, due to the large difference in the torque applied during manual inspection, it will eventually lead to a large measurement error, which cannot effectively evaluate the assembly quality of the high-pressure compressor rotor, which seriously affects the assembly of the high-pressure compressor rotor. precision

Method used

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  • Method for checking assembling flexibility of long bolts between high-pressure rotor discs

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Embodiment 1

[0030] The invention provides a method for inspecting the assembly flexibility of long bolts between high-pressure rotor disks, which is characterized in that: the method for inspecting the assembly flexibility of long bolts between high-pressure rotor disks, the 7th, 8th, and 9th disks of the high-pressure rotors of the engine and The grate disc is connected by 24 long bolts evenly distributed around the circumference. When assembling the high-pressure rotor, every time a disc is assembled, it is necessary to check the rotation flexibility of each long bolt to evaluate the assembly quality of the high-pressure rotor. When checking the flexibility of bolt rotation, if the bolt stuck fault occurs, it means that when assembling a certain stage disk, the stage disk is not assembled in place, resulting in contact stress between the bolt holes on the disk and the mating surface of the long bolt, making the bolts unable to flexibly Rotation reflects the poor assembly accuracy of the ...

Embodiment 2

[0050] The invention provides a method for inspecting the assembly flexibility of long bolts between high-pressure rotor disks, which is characterized in that: the method for inspecting the assembly flexibility of long bolts between high-pressure rotor disks, the 7th, 8th, and 9th disks of the high-pressure rotors of the engine and The grate disc is connected by 24 long bolts evenly distributed around the circumference. When assembling the high-pressure rotor, every time a disc is assembled, it is necessary to check the rotation flexibility of each long bolt to evaluate the assembly quality of the high-pressure rotor. When checking the flexibility of bolt rotation, if the bolt stuck fault occurs, it means that when assembling a certain stage disk, the stage disk is not assembled in place, resulting in contact stress between the bolt holes on the disk and the mating surface of the long bolt, making the bolts unable to flexibly Rotation reflects the poor assembly accuracy of the ...

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Abstract

The invention discloses a method for checking the assembling flexibility of long bolts between high-pressure rotor discs. The 7-stage, 8-stage and 9-stage discs and the labyrinth disc of the high-pressure rotor of the engine are connected by 24 long bolts which are uniformly distributed on the circumference; in assembling of the high-pressure rotor, one-stage disc is assembled each time, the rotation flexibility of each long bolt needs to be checked; in order to ensure the assembly precision of the high-pressure rotor, ensure that 24 long bolts between discs rotate without clamping stagnation,check the clamping stagnation condition of the bolts through a rotating torque method, convert the rotating condition of the bolts into a torque value and achieve the purpose of quantitative check standards, the assembly flexibility of the bolts can be accurately evaluated. The method has the advantages that whether the bolt is clamped is analyzed through a quantification means, manual interference can be effectively eliminated, manual inspection of the bolt clamping situation is greatly limited, the inspection standard cannot be accurately evaluated, the method effectively evaluates the assembly quality of the high-pressure compressor rotor, and the influence on the assembly precision of the high-pressure compressor rotor is avoided.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a method for checking the assembly flexibility of long bolts between high-pressure rotor disks. Background technique [0002] At present, the inspection method for the assembly flexibility of long bolts in the high-pressure compressor rotor assembly process is the manual inspection method, which is divided into pure manual inspection and non-measurement tool (T-shaped wrench) inspection method. That is to manually check the assembly flexibility of the bolts after the assembly of the high-pressure rotor disks at all levels to ensure that the bolts are free from jamming. The standard definition is vague. For different operators, due to the large difference in the torque applied during manual inspection, it will eventually lead to a large measurement error, which cannot effectively evaluate the assembly quality of the high-pressure compressor rotor, which seriously affects the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M15/14
CPCG01M13/00G01M15/14
Inventor 朱光远尚小丽孙汕民张思秋王晨阳
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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