CN2605198Y

CN2605198Y - Metal-rubber vibration isolator for pipeline support for aircraft engine

Info

Publication number: CN2605198Y
Application number: CN 03212264
Authority: CN
Inventors: 姜洪源; 敖宏瑞; 夏宇宏; 阎辉
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-03-03
Anticipated expiration: 2013-03-28

Abstract

The utility model which relates to a shock absorber and which is suitable for the metal rubber isolator supported by the aeroengine pipe comprises a motor body (4), a vibration isolator (1) and a lathedog (2). The vibration isolator (1) which is sleeve shaped is a latticed structure entwined and compressed by a plurality of spiral-shaped metal wire in random, and the vibration isolator (1) is embedded in the hole (3) of the lathedog (2) which is fixed on the motor body (4). Because of the latticed structure made of metal wire, the vibration isolator (1) has better elasticity and damping property. The utility model fixed on the outer surface of the motor pipe (7) makes the vibration of the motor pipe relieve greatly. The utility model has the advantages of high and low temperature and great difference of temperature resistance, corrosion resistance, long service life, strong strength and no volatilization of chemical composition of the material in vacuum.

Description

Be applicable to the metallic rubber vibration isolator of aero-engine supporting pipeline

Technical field: the utility model relates to a kind of shock absorber.

Background technology: the fracture of aero-engine exterior line is the most common failure in the driving engine use, and the pipeline major cause of failure is the caused pipeline vibration of vibration of driving engine, common abominable space working environments such as shock absorber incompatibility high temperature, low temperature, temperature difference great change and corrosion are badly in need of a kind of shock attenuation unit that is applicable to the aero-engine supporting pipeline at present.

Utility model content:, provide a kind of high temperature resistant, low temperature resistant, anti-big difference variation, resistant to corrosion metal vibration isolator in order to overcome the defective that existing shock absorber can not adapt to abominable working environment.It is achieved by following scheme: a kind of metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline, it comprises engine body 4, vibration isolating pad 1 and clip 2, the vibration isolating pad 1 of sleeve-like is to be coiled into the screw-shaped metal filament by some to twine the fenestral fabric body that stack is squeezed at random, vibration isolating pad 1 is embedded in the hole 3 of clip 2, and clip 2 is fixed on the engine body 4.Because the fenestral fabric body that vibration isolating pad 1 is made up of metal filament, though do not contain any rubber constituent, but have the better elastic and the damping capacity that are similar to rubber, the utility model is fixed on the outside face of engine pipelines 7, can make the vibration of engine pipelines obtain very big alleviating, the utlity model has high temperature resistant, low temperature resistant, anti-big difference variation, withstanding corrosion, advantage such as the life-span is long, intensity is high, the chemical constitution of material is non-volatile under the vacuum.

Description of drawings: Fig. 1 is the structural representation of the utility model embodiment one, and Fig. 2 is the structural representation of embodiment three, and Fig. 3 is the structural representation of embodiment four, and Fig. 4 is the structural representation of embodiment five.

The specific embodiment one: specify present embodiment below in conjunction with Fig. 1, it is by engine body 4, vibration isolating pad 1, holding screw 5 and clip 2 are formed, vibration isolating pad 1 is to be coiled into the screw-shaped metal filament by some to twine the fenestral fabric that stack is squeezed at random, the vibration isolation pad 1-1 of two tiles fastens the vibration isolating pad 1 that becomes a sleeve-like, clip 2 is made up of fixed end 2-1 that is positioned at left end and the card body 2-2 that is positioned at right-hand member, the centre of card body 2-2 is provided with porose 3, clip 2 is split up into two halves up and down from the centre, vibration isolating pad 1 is embedded in the hole 3 of clip 2, the fixed end 2-1 of clip 2 is fixed on the engine body 4 by holding screw 5, and vibration isolating pad 1 is enclosed within on the outside face of engine pipelines 7.

The specific embodiment two: specify present embodiment below in conjunction with Fig. 1, the difference of present embodiment and embodiment one is: vibration isolating pad 1 is by welding or being adhesively fixed on hole 3 inside faces of clip 2.This kind structure guarantees that vibration isolating pad 1 is connected reliably with clip 2.

The specific embodiment three: specify present embodiment below in conjunction with Fig. 2, the difference of present embodiment and embodiment one is: vibration isolating pad 1 is made up of semi-enclosed arc section 1-1 and rear 1-2, rear 1-2 is fixed on the engine body 4 by holding screw 5, clip 2 changed into semi-enclosedly get stuck 6, getting stuck 6 is enclosed within on the outside face of arc section 1-1 of vibration isolating pad 1.Vibration isolating pad 1 has good flexibility with body 4 junctions in the present embodiment, and effectiveness in vibration suppression is more outstanding, can be used for the occasion that allows vibration amplitude bigger.

The specific embodiment four: specify present embodiment below in conjunction with Fig. 3.Present embodiment with the difference of embodiment one is: the left end of clip 2 be provided with one with card body 2-2 identical card body 2-3, be inlaid with vibration isolating pad 1 in the hole 3 of card body 2-3.When can be used for two parallel engine pipelines 7, present embodiment fixes.

The specific embodiment five: specify present embodiment below in conjunction with Fig. 4.Present embodiment with the difference of embodiment four is: the left side of clip 2 or right part are provided with and block the identical card body 2-4 of body 2-2, are inlaid with vibration isolating pad 1 in the hole 3 of card body 2-4.When can be used for three parallel engine pipelines 7, present embodiment fixes.

Claims

1, a kind of metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline, it is characterized in that it comprises engine body (4), vibration isolating pad (1) and clip (2), the vibration isolating pad of sleeve-like (1) is to be coiled into the screw-shaped metal filament by some to twine the fenestral fabric body that stack is squeezed at random, vibration isolating pad (1) is embedded in the hole (3) of clip (2), and clip (2) is fixed on the engine body (4).

2, the metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline according to claim 1, it is characterized in that it also comprises holding screw (5), the vibration isolation pad (1-1) of two tiles fastens the vibration isolating pad (1) that becomes a sleeve-like, clip (2) is made up of fixed end that is positioned at left end (2-1) and the card body (2-2) that is positioned at right-hand member, the centre of card body (2-2) is provided with porose (3), clip (2) is split up into two halves up and down from the centre, vibration isolating pad (1) is embedded in the hole (3) of clip (2), and the fixed end (2-1) of clip (2) is fixed on the engine body (4) by holding screw (5).

3, the metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline according to claim 1 is characterized in that vibration isolating pad (1) is by welding or being adhesively fixed on hole (3) inside face of clip (2).

4, the metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline according to claim 2, it is characterized in that vibration isolating pad (1) is made up of semi-enclosed arc section (1-1) and rear (1-2), rear (1-2) is fixed on the engine body (4) by holding screw (5), change clip (2) into semi-enclosed getting stuck (6), get stuck (6) are enclosed within on the outside face of arc section (1-1) of vibration isolating pad (1).

5, the metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline according to claim 2, the left end that it is characterized in that clip (2) be provided with one with the identical card body (2-3) of card body (2-2), be inlaid with vibration isolating pad (1) in the hole (3) of card body (2-3).

6, the metallic rubber vibration isolator that is applicable to the aero-engine supporting pipeline according to claim 5, the left side or the right part that it is characterized in that clip (2) are provided with the card body (2-4) identical with blocking body (2-2), are inlaid with vibration isolating pad (1) in the hole (3) of card body (2-4).