Aero-engine low-pressure turbine rotor hoisting device and method

Abstract

The invention provides an aero-engine low-pressure turbine rotor hoisting device and method. The aero-engine low-pressure turbine rotor hoisting device comprises an installation body, a rotating shaftinserted into the installation body, two hoisting rods and a hand wheel, wherein one end of each hoisting rod is installed in the installation body, the two hoisting rods are connected with the rotating shaft through at least two sections of symmetrical transmission thread pairs opposite in screwing direction, the radial distance between the two hoisting rods is adjusted, the other ends of the hoisting rods are located below the installation body and connected with a turbine rotor, the handle wheel is installed at the outer end of the rotating shaft and used for driving the rotating shaft torotate, rotation of the rotating shaft is converted into linear movement of the hoisting rods through the hand wheel, and then hoisting of the turbine rotor is achieved. The aero-engine low-pressure turbine rotor hoisting device and method achieve that stable hoisting of a rotor disk only utilizes an inner hole and an end face, so that a labyrinth seal and a threaded structure of the body piece are protected to the greatest extent, and assembling technology requirements of low-pressure turbine rotor and stator assembly are met.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to an aero-engine low-pressure turbine rotor hoisting device and method thereof. Background technique [0002] In the field of aero-engines, low-vortex stator assembly is an important part of aero-engine assembly, and there are many honeycomb and grate tooth structures in the unit body. At the same time, low-pressure turbines generally have many different size series, so it is necessary to design an adjustable, universal and reliable spreader. [0003] In addition, according to the assembly process, in order to protect the rotor grate and thread structure at all levels, the following two requirements must be met during the hoisting process: [0004] 1. The spreader is fixed at the center of the low-pressure turbine disk, so as to prevent the grate teeth and thread structures of the rotors at all levels from being damaged during the lifting process, and at the same time ensure the stabil...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide an aero-engine low-pressure turbine rotor hoisting device and its method in order to overcome the defects of the hoisting device in the prior art, such as complex structure, low efficiency, and inability to meet the hoisting requirements of rotors of different stages.

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