Secondary nozzle and swirler combined clamp and method

A combined fixture and sub-nozzle technology, applied in the field of aero-engines, can solve the problems of aero-engine sub-nozzles and swirlers without suitable combined fixtures, and achieve the effects of avoiding partial installation, uniform force, and avoiding deformation

Active Publication Date: 2018-10-16
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a combined fixture and method for a secondary nozzle swirler to solve the problem that there is no suitable matching combined fixture for the secondary nozzle and the cyclone of an aero-engine

Method used

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  • Secondary nozzle and swirler combined clamp and method
  • Secondary nozzle and swirler combined clamp and method
  • Secondary nozzle and swirler combined clamp and method

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Embodiment Construction

[0043] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0044] figure 1 is a cross-sectional view of a sub-nozzle in a preferred embodiment of the present invention; figure 2 It is the front view of the cyclone of the preferred embodiment of the present invention; image 3 is a side view of the cyclone of the preferred embodiment of the present invention; Figure 4 is a cross-sectional view of a combination of preferred embodiments of the present invention; Figure 5 It is a schematic diagram of combining the auxiliary nozzle and the cyclone into an assembly by the auxiliary jet swirler combination fixture of the preferred embodiment of the present invention; Image 6 is a top view of the body of the preferred embodiment of the present inventio...

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Abstract

The invention provides a secondary nozzle and swirler combined clamp. The secondary nozzle and swirler combined clamp is used for combining and splicing of a secondary nozzle and a swirler of an aero-engine. The secondary nozzle and swirler combined clamp comprises a body used for forming a bottom support and a loading position, and a pressing sleeve used for pressing down to exert a force. The body is provided with a stepped hole which is used for fixedly positioning the secondary nozzle in the axial direction and forming the bottom support of the secondary nozzle, and an inserting connectionhole which is located above the stepped hole and used for allowing the pressing sleeve to slide in the axial direction for inserting connection; the bottom of the pressing sleeve is provided with a loading hole which is used for performing loading in the axial direction, fixedly positioning the swirler and uniformly transmitting static pressure to the swirler; and the stepped hole, the insertingconnection hole and the loading hole are distributed coaxially. The pressing sleeve freely slides off in the axial direction in the inserting connection hole, then the effect that the swirler freely slides off into an inner cavity of the secondary nozzle in the axial direction is guaranteed, and by exerting axial static pressure on the pressing sleeve, the swirler can be pressed into the inner cavity of the secondary nozzle in the axial direction and be accurately assembled in place.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a combined fixture and method for a secondary nozzle swirler. Background technique [0002] In view of the development progress requirements of a certain type of aero-engine, it is necessary to combine its auxiliary nozzle and swirler. Among them, the structure of the auxiliary nozzle and the cyclone is detailed in figure 1 , figure 2 , image 3 ; After the combination is completed, the combination presented is as follows Figure 4 shown. [0003] From the perspective of part structure, the fixture design should pay attention to the following points: [0004] 1) Because the contact part "P" of the product part is very small, the length direction is only 0.5mm, and the area of ​​the interference part "Q" is small, the length direction is only 1mm, and the maximum interference is 0.07mm, so the product parts must be combined Do a good job of guiding measures to ensure the coaxial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B11/02B25B27/02
CPCB25B11/02B25B27/02
Inventor 吉鹏飞贺冶张菊绒廖爱红张雅琼
Owner CHINA HANGFA SOUTH IND CO LTD
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