Vertical low-pressure turbine unit body assembling device and assembling method

Abstract

The invention provides a vertical low-pressure turbine unit body assembling device and assembling method. The assembling device comprises an assembling platform, a tightening wrench, a limiting plate,a pressing measuring device and a ruler, wherein the assembling platform comprises an upper frame and a lower frame, and the upper frame and the lower frame are fixedly connected up and down to forma hollow frame structure; the limiting plate is mounted above the upper frame, and the tightening wrench is mounted on the lower end surface of the limiting plate; the pressing measuring device is mounted on the inner bottom surface of the lower frame and located under the upper frame, one end of the ruler is mounted on the upper frame, and the other end of the ruler extends downwards; and a low-pressure turbine shaft is vertically fixed through the pressing measuring device and the tightening wrench, a low-pressure turbine rotor and stator is fixed to the upper frame, and the upper end of theruler is fixed to the upper frame and vertically extends downwards. The vertical assembling method is adopted, the principle is simple, centering is easy, and assembling of the low-pressure turbine unit body according to the drawing requirements is met. The assembling operation process is simple and stable, repeatability is good, and the low-pressure turbine assembling quality is stable.

Description

technical field [0001] The invention relates to the field of aero-engine assembly, in particular to a vertical low-pressure turbine unit assembly device and an assembly method thereof. Background technique [0002] figure 1 It is a structural schematic diagram of a medium and low pressure turbine in the prior art. figure 2 Schematic diagram of the vertical assembly of the medium and low pressure turbines in the prior art Figure 1 . image 3 Schematic diagram of the vertical assembly of the medium and low pressure turbines in the prior art Figure II . Figure 4 It is a schematic diagram of H2 size measurement in the prior art. [0003] Such as Figure 1 to Figure 4 As shown, the low-pressure turbine unit body of the model is composed of three subunits: the low-pressure turbine shaft 10 , the rotor stator 20 , and the turbine rear case 30 . The inner cylindrical surface A and the front end surface B of the first stage turbine disc in the rotor stator 20 are the assem...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a vertical low-pressure turbine unit assembly device and its assembly method in order to overcome the defect that the axial gap between the rotor stators in the assembly and assembly of the medium and low-pressure turbine units in the prior art is difficult to control

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