A device for simulating blade assembly

Abstract

The invention discloses a device used for simulating blade assembly. The device mainly comprises a bottom plate, an outer ring locating block and an inner ring measuring block, wherein the outer ring locating block and the inner ring measuring block are fixed to one side face of the bottom plate through locating pieces and connecting pieces. The upper plate contour surface and the lower plate contour surface of the bottom plate are cylindrical surfaces. The outer edge contour surface of the outer ring locating block is a cylindrical surface, a convex ring is arranged at the outer edge of a block body plate surface, and the radius R1 and the section size of the locating circular ring surface of the convex ring are designed according to a ring-shaped installation groove in the crown G of a blade to be assembled in a simulation mode. The inner contour surface of the inner ring measuring block is a cylindrical surface, a convex ring for locating and installing the blade is arranged at the inner edge of a block body plate surface, and the radius R2 and the section size of the locating circular ring surface of the convex ring are designed according to a ring-shaped installation groove in the stalk J of the blade to be assembled in the simulation mode. The locating circular ring surface R1 of the convex ring on the outer ring locating block and the locating circular ring surface R2 of the convex ring on the inner ring measuring block are concentric. By adopting the device for measuring the blade to be assembled in the simulation mode, multiple detection factors of the blade can be measured at the same time, the detection efficiency is high, and the detection cost is low.

Description

technical field [0001] The invention relates to the technical field of installing high-speed rotating impeller blades, in particular to a device for simulating assembly of impeller blades. Background technique [0002] The impeller rotor is the core component of the engine, gas turbine, fan and other equipment. The blade is the functional part of the impeller rotor. Before the blade is assembled into the rotor after processing, various assembly elements of the blade need to be measured to ensure the correctness of the blade. assembly relationship. In the prior art, the measurement of blade detection elements is all for the single detection element of the blade. However, due to the complex structure of the blade and the large number of related dimensions, during assembly, it is necessary to match multiple positioning surfaces at the same time to complete the assembly smoothly. For some inspection technologies, the matching of a single inspection element cannot guarantee that...

AI Technical Summary

Problems solved by technology

In the prior art, the measurement of the blade detection elements is all for the single detection element of the blade. However, due to the complex structure of the blade and the large number of related dimensions, during assembly, it is necessary to match multiple positioning surfaces at the same time to complete the assembly smoothly. With some detection technologies, the matching of a single detection element cannot guarantee that the blades can meet the assembly requirements 100% during assembly, causing some problems to be discovered during assembly of the blades, which affects the assembly of the entire unit

Therefore the inherent characteristic of the detection measuring tool of prior art causes following deficiency: (1) can not carry out multi-dimensional element comprehensive detection (blade outer ring mounting groove width, blade inner ring mounting groove width, blade steam inlet edge mounting groove step difference, The step difference of the installation groove on the exhaust side of the blade, the positioning arc surface of the outer ring positioning block, the positioning arc surface of the inner ring positioning block and other dimensional elements), can only detect a single element, resulting in some assembly problems that cannot be found, affecting to the assembly of the entire unit, causing heavy losses to the production enterprise

(2) A set of measuring tools is required for one testing element, and the processing cost is high

(3) Each detection element is tested once, the detection efficiency is long, and the cycle is long

Images