Blade disc hoisting device and method

Abstract

The invention discloses a blade disc hoisting device and method, and the hoisting device comprises a hoisting beam; and the rotating part is arranged on the lifting beam and is connected with the blade disc in the lifting process, so that the blade disc can circumferentially rotate around the axis of the lifting beam. The hoisting method comprises the following steps that the hoisting beam is hoisted in a vertical state, the rotating part is located at the bottommost portion of the hoisting beam after hoisting, and the rotating part and the blade disc are aligned in the vertical direction; the rotating part is connected with the blade disc, and the blade disc and the lifting beam are synchronously lifted; the hanging beam is rotated, the hanging beam is rotated from the vertical state to the horizontal state, and the blade disc rotates synchronously; the hanging beam is transversely moved, and the rotated blade disc is conveyed to a mounting position; the blade disc is installed; and after the blade disc is mounted, the rotating part is separated from the blade disc. The blade disc can circumferentially rotate around the lifting beam in the air, the lifting process is faster and more efficient, and meanwhile the assembly precision is improved.

Description

technical field [0001] The invention relates to the technical field of turbomachinery, in particular to a blisk hoisting device and method. Background technique [0002] Exhaust gas turbines are generally used for power generation and reuse of high-temperature and high-pressure exhaust gas in chemical processes, or as driving equipment to reduce energy consumption. With the development of domestic green economy, it has gradually become the key equipment in the chemical process in recent years. [0003] In order to ensure the long-term operation of the unit, the assembly quality of the exhaust gas turbine unit plays a key role, and the assembly quality of its core component - the rotor is the most important. Low-power exhaust gas turbine equipment generally adopts the rotor structure of cantilever blisks. The rotor of this structure is relatively light in weight, small in moment of inertia, and has relatively broad requirements on the temperature and pressure of chemical pro...

AI Technical Summary

Problems solved by technology

[0005] The assembly diagram of the cantilever blisk and the exhaust gas turbine equipment is as follows: figure 1 As shown, it can be seen from the figure that the blisk needs to be installed inside the volute. The weight of the blisk is generally more than 100Kg, and it cannot be assembled by hand; the assembly gap between the blisk and the main shaft is generally 1-3mm, and the assembly of the blisk It brings greater difficulty; the blisk and the main shaft are positioned by pins, and the locating pins are assembled with a fixed phase. The relative rotation between the blisk and the main shaft is required during assembly, so the blisk needs to be freely rotated to install the positioning pin during assembly. , which also brings great difficulties to assembly

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