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Auxiliary device for aero-engine casing assembling

A technology for aero-engines and auxiliary devices, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as difficulty in casing assembly, and achieve the effects of shortening pre-installation time, shortening adjustment time, and balanced airflow temperature

Active Publication Date: 2018-04-20
AECC AERO SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current technical situation where the assembly of the casing is difficult, the invention provides an auxiliary device for the assembly of the aero-engine casing, which can realize rapid assembly and heat the mouth of the casing assembly, and solve the problem of pre-installation of the matching casing assembly

Method used

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  • Auxiliary device for aero-engine casing assembling
  • Auxiliary device for aero-engine casing assembling
  • Auxiliary device for aero-engine casing assembling

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Embodiment

[0030] The auxiliary device used in the assembly of the aero-engine casing provided by this embodiment, such as figure 1 and figure 2 As shown, it includes an annular channel that surrounds the flange seam of the casing section 1 to be assembled and four hot air blowers 4 arranged on the annular channel. The outlet of the hot air blower communicates with the annular duct through the hot air pipe 6 .

[0031] Such as Figure 1 to Figure 4As shown, the annular channel is a split structure in the middle, and each part is equipped with 2 hot air blowers. After the two parts of the annular channel are assembled together, there is an assembly gap of 4 mm between the butt end faces. Each part of the annular channel is composed of a supporting ring 2 with a groove-shaped cross-section structure opening outward and a cover ring 3 with a groove-shaped cross-section structure opening inward. The annular edge of the groove wall under the support ring is a convex-concave lace structure...

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Abstract

The invention discloses an auxiliary device for aero-engine casing assembling. The auxiliary device comprises an annular channel and 2-6 air heaters arranged on the annular channel, wherein assembly flange spigot sides of to-be-assembled casing segments are surrounded in the annular channel. An outlet of each air heater communicates with the annular channel through an air heating pipe. According to the auxiliary device, the annular channel is designed to be of a halved structure; under the condition that a small distance is reserved between two adjacent casing segments, the two halved parts ofthe annular channel can be fixed to the spigot end faces of the to-be-assembled casing segments, and a spigot is heated; the auxiliary device demounting time and the matched casing assembly adjustingtime are shortened, the pre-assembly work of matched casing segments is advanced to be before spigot heating, and the pre-assembly time is shortened; and the casing assembling requirement is met, andmeanwhile the casing assembling efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aero-engine manufacturing, and relates to the assembly of an aero-engine casing, in particular to an auxiliary assembly device used in the assembling process of an aero-engine casing. Background technique [0002] The engine stator casing is assembled from multiple casing sections along its axial direction, and the adjacent casing sections are positioned by joints and fixed together by connecting bolts. In order to ensure the coaxiality requirements between the casing sections, the spigots of the casing sections are interference fits. During assembly, the outer spigots need to be heated to make them expand, so that the diameter of the inner hole of the outer spigot becomes larger and the diameter becomes larger. The gap assembly is a gap assembly. [0003] The existing assembly method is to use an annular heating device. Firstly, the overall annular heating device is positioned and assembled on the mouth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/02
CPCB23P11/025
Inventor 邱枫王均肖国郁
Owner AECC AERO SCI & TECH CO LTD
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