Connection of radial struts to a circular casing by pins and spacers

A technology of radial arm and sleeve, which is applied in the field of connection between the radial arm and the circular sleeve through the shaft and spacer, which can solve the problems of oversized design and inability to disassemble the radial arm, and achieve simple components and low weight. Lightweight, ensures precise positioning effect

Active Publication Date: 2013-05-01
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defect that this type of connection often brings is that the size design is too large for the convenience of assembly, and it is usually fixed to the radial arm by bolts. The risk is that if the bolts are clamped, the radial arm cannot be disassembled. arm
[0007] This latter defect is also present in other connection members where the radial arms are directly attached to the sleeves by threading bolts through the sleeves parallel to the direction of the radial arms

Method used

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  • Connection of radial struts to a circular casing by pins and spacers
  • Connection of radial struts to a circular casing by pins and spacers
  • Connection of radial struts to a circular casing by pins and spacers

Examples

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Embodiment Construction

[0020] The end of the radial arm 10 is provided with two parallel perforations 20 at its end, which are of the smallest size and placed on opposite sides ( Figure 5 with Figure 8 ). Axis 21 ( Figure 5 with Image 6 ) engages with and passes through the perforation 20. These shafts comprise a central part 22 with the same cross-section (preferably circular) as the perforations 20 and placed inside these perforations, and two lateral parts 23 protruding outwards from the radial arms 10, each There is a shaft through hole 24 on each part. The lateral portion 23 has a flat surface 25 on it. The structure further includes spacers 26 ( Figure 5 with Figure 7 ), on which a pair of spacer perforations 27 are arranged parallel to each other.

[0021] Outer sleeve 11 is provided with protuberance 28 (boss) ( Figure 5 with Figure 9 ), combined with each connecting member, the surface of which is planar or cylindrical, cylindrical so that its axis is the same as that of t...

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Abstract

The arrangement has a radial arm (10) joining a circular ferrule (11) with another concentric ferrule, and connections connecting the arm with the circular ferrule. The connections have an axle (21) traversing holes (20), where the axle is equipped with holes (24). The connections have spacers (26) arranged on both sides of the arm between the axle and the circular ferrule. Holes traverse the circular ferrule and the spacers, and form alignments with the holes (24). Bolts (33) traverse the alignments, and tighten the circular ferrule, axle and spacers, and are disjointed from the arm.

Description

technical field [0001] The invention relates to the connection of radial arms to circular bushings via shafts and spacers, and in particular to turbines used in the aerospace field. Background technique [0002] In some designs of turbines comprising a concentric outer sleeve over an inner hub sleeve joined by radial arms to the inner hub sleeve to form an annular chamber or part of the gas flow, It is also circular, but its axial ends are open. E.g, figure 1 It is a partial schematic diagram of a turbine, which usually includes a low-pressure compressor 3 and a high-pressure compressor 4, a combustion chamber 5, a high-pressure turbine 6 and a low-pressure turbine 7 between the stator 1 and the rotor 2, and the rotor 2 can be between the turbine 6 and the turbine 7 The space is divided into two separate parts, while the inner hub 8 extends between these two parts to maintain the smooth flow of the gas flow 9 in the turbine. The inner hub 8 is substantially supported by r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D9/00
CPCF01D25/246F01D25/162F05D2230/64F05B2260/301
Inventor 高德弗罗伊·弗朗西斯·弗雷德里克·德里龙塞比斯蒂恩·让·劳伦特·普莱斯蒂尔让-卢克·索皮泽
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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