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Assembly tooling for ventilation pipe in turbine shaft

A technology for assembling tooling and ventilation pipes, which is used in manufacturing tools, hand-held tools, etc. to achieve the effect of improving accuracy

Active Publication Date: 2021-09-24
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inner cone has a tapered face

Method used

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  • Assembly tooling for ventilation pipe in turbine shaft
  • Assembly tooling for ventilation pipe in turbine shaft
  • Assembly tooling for ventilation pipe in turbine shaft

Examples

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Embodiment Construction

[0025] A variety of different implementations or examples for implementing the described subject technical solutions are disclosed below. In order to simplify the disclosure, the following describes the specific examples of each element and arrangement, and of course, these are only examples, and are not intended to limit the protection scope of the present application. For example, the description that the first feature described later in the description is formed on or above the second feature may include an embodiment in which the first and second features are formed through direct contact, and may also include an embodiment in which the first and second features are formed between the first and second features. Embodiments of additional features such that there may be no direct relationship between the first and second features. Additionally, reference numerals and / or letters may be repeated in different instances in these disclosures. This repetition is for brevity and c...

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Abstract

The purpose of the present invention is to provide an assembly tool for the air pipe in the turbine shaft, which can improve the accuracy of the assembly of the air pipe in the turbine shaft. The assembling tool for the air pipe in the turbine shaft for realizing the aforementioned purpose comprises an inner cone, an elastic expansion ring, a support seat, a screw rod and a nut. The inner cone has a tapered surface, the elastic expansion ring can be deformed under the extrusion of the inner cone, and can be attached to the conical inner wall of the vent pipe, and the support seat is installed on the rear flange of the five-point sealing runway. One end of the screw rod passes through the elastic expansion ring and connects with the inner cone, and the other end passes through the supporting base to connect with the nut. Among them, in the docking state, the nut is tightened to apply axial tension on the screw rod, and the tension is transmitted to the inner cone and presses the elastic expansion ring on the conical inner wall of the vent pipe, so that the elastic expansion ring is attached to the conical inner wall , and then the support base and the elastic expansion ring are configured as a pair of clamping structures, which connect the five-point sealing runway and the ventilation pipe into one.

Description

technical field [0001] The invention relates to a tool for assembling a ventilation pipe in a turbine shaft. Background technique [0002] There is a vent pipe built into the low-pressure turbine shaft of the aero-engine to remove the exhaust gas in the high-pressure chamber. figure 1 It is a schematic cross-sectional view of a low-pressure turbine shaft. The contact between the front end 11 of the breather pipe 1 and the low-pressure turbine shaft 2 is sealed with an apron 3 to prevent air leakage. When assembling the breather pipe 1 and the low-pressure turbine shaft 2, a relatively large Large external force acts to overcome the friction between the rubber ring 3 at the front end 11 of the vent pipe 1 and the inner wall of the low-pressure turbine shaft 2 so that the vent pipe 1 can be assembled in place. The rear end 12 of the vent pipe 1 has a connecting flange 13, on which a five-point sealing runway 4 is arranged, and the outer wall of the five-point sealing runway 4...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B27/00B25B27/02
CPCB25B27/00B25B27/02
Inventor 李志平胡一廷孙磊
Owner AECC COMML AIRCRAFT ENGINE CO LTD