Assembly device for engine turbine

Abstract

The invention provides an assembly device for an engine turbine. The assembly device comprises a cylinder body, a bracket disk, a positioning ring and an annular plate, wherein the cylinder body is mounted on a turbine rotor shaft through two bearing devices and can rotate relative to the rotor shaft; the bracket disk is perpendicular to the cylinder body and is fixedly arranged on the cylinder body which is close to one end of the turbine rotor; the positioning ring and the cylinder body are coaxially and fixedly arranged on the bracket disk, and the inner diameter of the positioning ring is used as a mounting radial location reference of a guider; the annular plate is positioned at the outer end of the positioning ring, and the end surface, which is butted to a case of the guider, of the annular plate is used as a mounting axial positioning base of the guider. The cylinder body is mounted on the rotor shaft through the two bearing devices, wherein one bearing device which is close to one end of the turbine rotor is provided with a radial fine tuning structure, and the other bearing device is provided with an axial fine tuning structure; the bracket disk is provided with measuring holes for measuring the distances between front edges of blades. Through the adoption of the assembly device, the precise adjustment of the axial position relation and the radial position relation of a turbine rotor and the guider can be realized, and the assembly of the turbine belt guider and the level by level dynamic equilibrium of the turbine belt guider are realized, so that the assembly precision and the assembly reliability of the turbine belt guider are improved.

Description

technical field [0001] The invention belongs to the technical field of aero-engine manufacture and assembly, and in particular relates to a tooling device for engine turbine assembly. Background technique [0002] In aero-engines, there is a large double-rotor engine. For the assembly of high and low-pressure turbines in this type of engine assembly unit, since the guider and the rotor are not structurally related to each other, the assembly and balance of the unit During the process, it is impossible to find the assembly datum directly from the unit itself, and it is difficult to locate it accurately, so the assembly and adjustment of this type of engine are quite difficult. Engine turbine components belong to the hot end and stress-bearing parts, and are the core components of the engine. The working conditions are harsh, the deformation is large, and the requirements for assembly technology are high. The assembly quality and accuracy have a great impact on engine performa...

AI Technical Summary

Problems solved by technology

In the assembly of the existing technology, due to the large number of dimensional chains during assembly, there are many elements to be controlled, and the cumulative error is relatively large. After the assembly is completed, the key elements of the assembly cannot be re-inspected, the assembly reliability is low, and the assembly accuracy is not high.

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