Balance adjusting device of turbofan engine rotor single-stage disc and adjusting method thereof

A turbofan engine and balance adjustment technology, which is applied in static/dynamic balance testing, measuring devices, testing of machine/structural components, etc., can solve the problem of large unbalance of tooling, poor guarantee of assembly clearance, and processing of multiple groups of tooling and other problems, to achieve the effect of reducing processing costs, reducing operating errors, and good operability

Active Publication Date: 2020-12-18
CHENGDU ENGINE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a balance adjustment device and method for a single-stage disk of a turbofan engine rotor, which can use the balance adjustment requirements of single-stage disks with different diameters, and solve the large unbalance of the tool itself in the single-stage disk balancing process , The assembly gap is not well guaranteed and the technical problems of processing multiple groups of tooling

Method used

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  • Balance adjusting device of turbofan engine rotor single-stage disc and adjusting method thereof
  • Balance adjusting device of turbofan engine rotor single-stage disc and adjusting method thereof
  • Balance adjusting device of turbofan engine rotor single-stage disc and adjusting method thereof

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Embodiment 1

[0039] refer to Figure 1-4 , the present invention provides a technical solution:

[0040] Please refer to Figure 1-2 , a balance adjustment device for a single-stage disc of a turbofan engine rotor, comprising:

[0041] Balance base 1;

[0042] The eccentric adjustment assembly 2 installed on the balance base 1 and the support assembly 3 installed on the balance base 1;

[0043] A single-stage disc 4, the single-stage disc 4 is supported above the eccentric adjustment assembly 2, adjusts the distance between the eccentric adjustment assembly 2 and the center of the balance base 1, and moves the eccentric adjustment assembly 2 to the center of the balance base 1 through the support assembly 3 The single-stage disk 4 is connected with the balance base 1 to form a concentric structure up and down.

[0044]The balance adjustment device for the turbofan engine rotor single-stage disk of the present invention has few components, but it has good operability. When balancing, th...

Embodiment 2

[0061] A method for adjusting the balance of a single-stage disk of a turbofan engine rotor, using the balance device for a single-stage disk of a turbofan engine rotor for adjustment, including the following steps:

[0062] S1. Install the eccentric adjustment assembly 2: select a set of installation position units matching the diameter of the single-stage disk 4, and install four eccentric adjustment seats in the installation holes 6 of the installation position unit;

[0063] S2. Installing the supporting components 3: installing the four supporting components 3 in the mounting holes 6, and installing them on the same set of installation position units with the four eccentric adjustment seats, and alternately setting them with the eccentric adjusting components 2;

[0064] S3. Place the single-stage disk 4: support the single-stage disk 4 on the support head 203 of the eccentric adjustment assembly 2, measure the radial runout of the single-stage disk 4 to obtain the single-...

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Abstract

The invention discloses a balance adjusting device of a turbofan engine rotor single-stage disc and an adjusting method of the balance adjusting device. The device comprises a balance base; an eccentric adjusting assembly which is installed on the balance base, and a supporting assembly which is installed on the balance base; a single-stage disc which is supported above the eccentric adjusting assembly, wherein the distance between the eccentric adjusting assembly and the center of the balance base is adjusted, so the single-stage disc and the balance base are connected into an up-down concentric structure through the supporting assembly. According to the invention, the balance adjustment requirements of the single-machine discs with different diameters can be met, and the technical problems that the unbalance amount of the tool is large, the assembly gap is not easy to guarantee and multiple groups of tools need to be processed in the single-stage disc balance process are solved.

Description

technical field [0001] The invention relates to the field of turbofan engine compressor turbine assembly balance, in particular to a balance adjustment device and an adjustment method for a turbofan engine rotor single-stage disk. Background technique [0002] The rotor of an aircraft engine, taking the turbine as an example, is mainly composed of an impeller and a shaft, and each stage of the impeller is composed of a disc and blades. The quality of the rotor balance directly affects the vibration of the whole engine, so the improvement of the balance accuracy of the single-stage impeller can effectively improve the balance accuracy of the rotor, thereby ensuring the vibration of the whole engine and engine performance. [0003] The single-stage disk of the engine is usually assembled on the balancing machine by using the balancing tool to measure the unbalance. At present, domestic balance tooling usually uses a combination of bushings, spacer bushings, mandrel cover plat...

Claims

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Application Information

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IPC IPC(8): G01M1/12G01B21/00
CPCG01M1/12G01B21/00Y02T50/60
Inventor 付玉杰杨霄李峥印灿
Owner CHENGDU ENGINE GROUP
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