Balancing tool

Abstract

One purpose of the invention is to provide the balancing tool which can balance turbine discs with different diameters and structures and can eliminate the unbalance amount of the balancing tool itself at the same time. In order to achieve the purpose, the balancing tool comprises a disc body, the disc body is provided with a first side used for being connected with a balanced object and a second side used for being connected with balancing equipment, a plurality of centering columns and a plurality of fixing columns are arranged on the first side, and after the balanced object is supported by the centering columns and subjected to center adjustment, the balanced object is fixed above the first side of the disc body through a fixing column. The disc body is provided with a matching part arranged along the periphery, at least one balance weight unit is arranged on the matching part, the balance weight unit can move along the periphery of the disc body, and the unbalance amount of the balancing tool is eliminated by adjusting the position of the balance weight unit on the periphery of the disc body.

Description

technical field [0001] The invention relates to a balancing tool. Background technique [0002] Existing aero-engines generally adopt a single-rotor, double-rotor or three-rotor structure, no matter which structure contains many internal structures such as discs, drums, disc drums, cones and rotor assemblies of different sizes. In order to reduce the probability of vibration of the aero-engine, during the assembly process of the aero-engine, these parts and components need to be balanced and their remaining imbalances should be effectively controlled. Generally, the balance accuracy level is required to be between G2 and G6.4. At the same time, in order to avoid large balance measurement errors, the balance fixture used to support and balance the above-mentioned engine components also needs to be balanced and its remaining unbalance amount controlled. Generally, the remaining unbalance amount of the fixture is required to be at least five points of the object being balanced ...

AI Technical Summary

Problems solved by technology

Due to the uniform distribution of holes that cannot be divisible by 3, three roughly evenly distributed positioning support columns are set to support the turbine disk. Due to the uneven distribution of the columns, the balance tool itself will introduce unbalance due to the uneven mass distribution.

The unbalance of the tooling itself can be eliminated by removing materials or adding counterweights, and because the connection radii of the discs at each level are different, the distribution of the centering cylinder and the pressing cylinder of each level is different, resulting in the use of counterweight screws to eliminate It is difficult to operate the way of balancing the self-unbalance of the tooling

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