Balancing device and method for multistage blisk

Abstract

The invention discloses a balancing device and method for a multistage blisk. A positioning ring and a balancing shaft are adopted to form the balancing device, one end of the balancing device is of an opening structure, a balancing shaft mounting hole is formed in the middle of the positioning ring, one end of the balancing shaft is fixed in the balancing shaft mounting hole of the positioning ring, and a plurality of positioning ring spigots are formed in a positioning table in the circumferential direction of the positioning ring; a blade disc positioning ring is arranged on the balance shaft, the diameter of the blade disc positioning ring is the same as the diameter of the minimum inner ring of the multistage integral blade disc to be balanced, a spigot of the multistage integral blade disc to be balanced is fixedly connected with a spigot of the positioning ring on the positioning table, and the multistage integral blade disc to be balanced is supported through the blade disc positioning ring and fixedly connected through a unilateral spigot. The mounting edge spigot mounting size precision is ensured, and over-positioning is avoided. The device is simple in structure, single-side fixing is adopted, supporting balance is achieved on the other side of the balance shaft, installation and assembly are convenient, the balance clamp needs to be disassembled easily when materials are taken out in the balance process, and the balance quality and efficiency are greatly improved.

Description

technical field [0001] The invention belongs to the balancing process of a high-pressure compressor rotor of an engine, and in particular relates to a balancing device and method for a multi-stage integral blisk. Background technique [0002] The high-pressure compressor rotor assembly of an aero-engine is composed of a first-stage blisk, a second-stage blisk, a third-fourth blisk, a front journal, a toothed disc and connectors, etc. In order to ensure that the remaining unbalance of the high-pressure rotor assembly reaches the design According to the requirements, it is necessary to separately distribute and balance the disk components at all levels of the high-voltage rotor assembly, and then reasonably arrange the assembly of the disk components at all levels according to the light (or key) orientation of the disk components at all levels and the size of the remaining unbalance. the angular position of . In actual production, the balance accuracy of the three-stage and f...

AI Technical Summary

Problems solved by technology

This balance method ignores the influence of the dimensional accuracy of the mounting edge spigots at both ends and the deviation of coaxiality accuracy on the balance accuracy, which can easily lead to over-positioning, damage to the connection spigots of the three-stage and four-stage rotor assemblies and the balance fixture, and balance The clamp is large in size and difficult to assemble, all of which affect the balance accuracy of the overall blisk, especially when removing materials during the balancing process, the balance clamp needs to be disassembled, which seriously restricts the balance quality and delivery period of the high-pressure compressor rotor of a certain machine

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