CN203703442U - Bellow type spherical joint - Google Patents
Bellow type spherical joint Download PDFInfo
- Publication number
- CN203703442U CN203703442U CN201320771185.7U CN201320771185U CN203703442U CN 203703442 U CN203703442 U CN 203703442U CN 201320771185 U CN201320771185 U CN 201320771185U CN 203703442 U CN203703442 U CN 203703442U
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- spherical
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- 230000007246 mechanism Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of plane high-pressure conduit systems, in particular relates to a bellow type spherical joint, and solves the problems that in the prior art, a metallic bellow expansion joint has heavy weight, short service life and high hidden danger of leakage, and the manufacturing process of a high-pressure conduit system is poor. The bellow type spherical joint comprises a bellow, wherein two ends of the bellow are respectively welded with the inner ends of a left connecting pipe and a right connecting pipe; an outer support is welded with the outer end of the left connecting pipe, and an inner support is welded with the outer end of the right connecting pipe; the outer side face of a wearing ring is fixedly connected with one end of a spherical hinge ring, and the inner side face of the wearing ring being an inner spherical surface and the inner support form a spherical revolute pair; the other end of the spherical hinge ring is in welded connection with the outer support, and a limiting support sleeves the spherical hinge ring and is in welded connection with the inner support. The bellow type spherical joint has the characteristics of light weight, small size and long service life, can reduce hidden danger of pipeline leakage, improves the reliability and maintainability, is high in practicality, is easy to popularize and apply, and has a high practical value.
Description
Technical field
The utility model belongs to the technical field of aircraft high-pressure conduit system joint, specifically a kind of bellow type spherical joint.
Background technique
In aircraft high-pressure conduit system, need to use the compensator Stress and displacement that compensation causes due to temperature variation, alignment error and mechanical vibration etc. to high-pressure conduit, ensure reliability and the Security of high-pressure conduit system.Traditional corrugated compensation of pipeline device (corrugated expanding metal joint) is applied on high-pressure conduit, mainly has the problem of following several respects:
1. flange and Quick Release Hoop joint are many, have leakage hidden danger;
2. jointing and conventional metals corrugated expansion joint weight are heavier;
3. working life lower can not with the same longevity of aircraft, increased maintenance and the maintenance cost of aircraft;
4. in pipeline manufacture process, need field sampling to manufacture conduit more, manufacturability is poor, increases manufacture cost.
In addition, corrugated expanding metal joint does not generally possess the function of self bearing bellows pressure generation thrust, exists and is subject to bring larger pressure thrust to pipeline after interior pressure, causes easily occurring the weak link that the excessive elongation of bellows was lost efficacy.Although pressure-balancing type corrugated expanding metal joint possesses the function of self bearing bellows pressure generation thrust, but need to carry out this thrust of balance with drag link mechanism or straight tube mechanism and multiple bellows, and easily there is the defect of fracture in drag link mechanism pull bar in vibration environment, simultaneously, straight tube mechanism volume is large, Heavy Weight, aircraft high-pressure conduit system should not adopt.
Summary of the invention
The utility model for overcome prior art corrugated expanding metal joint Heavy Weight, life-span low, leak that hidden danger is large, the poor problem of high-pressure conduit system anufacturability, a kind of bellow type spherical joint is provided, can effectively reduce the hidden danger of pipeline leakage, weight reduction, improves the life-span; And can also improve aircraft conduit the manufacturability of manufacturing is installed.
The utility model adopts following technological scheme to realize:
Bellow type spherical joint, comprise outer support, connecting tube, bellows, ball pivot ring, wear ring, inner support and limited support, described bellows two ends respectively with a left side, the inner of right connecting tube is welded to connect, the outer end of outer support and left connecting tube is welded to connect, the outer end of inner support and right connecting tube is welded to connect, inner support is that its centre of sphere of outer spherical surface shape is in bellows geometrical center, wear ring outer side surface is fixedly connected on one end of ball pivot ring, inner side surface is that inner ball surface and inner support form spherical rotation pair, the ball pivot ring the other end and outer support are welded to connect, limited support is placed on outside ball pivot ring and is welded to connect with inner support, wear ring, ball pivot ring, inner support and limited support form outside sphere revolute pair mechanism.
Described bellows is realized sealing and compensate function.
Described connecting tube is realized and being connected, and reduces the function that flow resistance and air-flow impact bellows.
Described wear ring, ball pivot ring and inner support and limited support composition spherical rotation pair, realize radially and rotating, and angle compensation and elimination bellows pressure produce the function of thrust.
The utility model bellow type spherical joint carries out for aircraft high-pressure conduit system the Stress and displacement compensation that temperature variation, alignment error and mechanical vibration etc. cause, there is feature lightweight, that volume is little, the life-span is long, can reduce the hidden danger of pipeline leakage, reliability and maintenance are improved, and can also improve aircraft pipeline the manufacturability of manufacturing is installed, therefore practicability is better, is easy to apply, and has larger use value.This product can be widely used in the High Temperature High Pressure conduit of large aircraft, space flight, field of petrochemical industry, and marketing has a extensive future.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-outer support, 2-connecting tube, 3-bellows, 4-ball pivot ring, 5-wear ring, 6-inner support, 7-limited support.
Embodiment
By reference to the accompanying drawings embodiment of the present utility model is described further.
Bellow type spherical joint, comprise outer support 1, connecting tube 2, bellows 3, ball pivot ring 4, wear ring 5, inner support 6 and limited support 7, described bellows 3 two ends respectively with a left side, the inner of right connecting tube is welded to connect, outer support 1 is welded to connect with the outer end of left connecting tube, inner support 6 is welded to connect with the outer end of right connecting tube, inner support 6 is that its centre of sphere of outer spherical surface shape is in bellows 3 geometrical centers, wear ring 5 outer side surfaces are fixedly connected on one end of ball pivot ring 4, inner side surface is that inner ball surface and inner support 6 form spherical rotation pair, ball pivot ring 4 the other ends and outer support 1 are welded to connect, limited support 7 is placed on outside ball pivot ring 4 and is welded to connect with inner support 6, wear ring 5, ball pivot ring 4, inner support 6 and limited support 7 form outside sphere revolute pair mechanism.
Outer support 1 mainly rises and connects ball pivot ring 4 and protection bellows action, and its physical dimension reaches profile minimum and the minimum effect of weight; Inner support 6 works to support wear ring 5, ensures that pressurized is indeformable; Ball pivot ring 4 mainly plays fixing wear ring 5; Wear ring 5 is designed to inner ball surface and inner support 6 forms spherical rotation pair, can reduce at the volley friction; Affect wear ring 5 fixing loosening in order to ensure can not to produce axial compression displacement by bellows for limited support 7, designs and reach weight minimum, do not hinder wear ring 5 and be loaded on ball pivot ring 4 around inner support 6 spherical rotation.
Bellows two ends and connecting tube welding connection structure can effectively reduce weight, reduce flow resistance and air-flow impacts bellows.
Between wear ring and inner support, be lubricated processing, reduce angle compensation moment, strengthened the compensation ability of product, reduced the working stress of high-pressure conduit system.
The outside sphere revolute pair mechanism of wear ring, ball pivot ring, inner support and limited support composition; make bellows Bending stress in the time of compensation; the shearing stress of sudden change while eliminating compensation; increased the fatigue life of product, and protection thin-wall corrugated tube should not cause mechanical deterioration in use and installation process.
The outside sphere revolute pair mechanism of wear ring, ball pivot ring, inner support and limited support composition, also possesses the function of self bearing bellows pressure generation thrust, has eliminated the impact on high-pressure conduit.
The utility model realizes radial angle compensate function, has effectively reduced again product design size and weight, in addition because bellows only bears angle displacement, has reached long requirement of life-span.
Claims (1)
1. a bellow type spherical joint, it is characterized in that: comprise outer support (1), connecting tube (2), bellows (3), ball pivot ring (4), wear ring (5), inner support (6) and limited support (7), described bellows (3) two ends respectively with a left side, the inner of right connecting tube is welded to connect, outer support (1) is welded to connect with the outer end of left connecting tube, inner support (6) is welded to connect with the outer end of right connecting tube, inner support (6) is that its centre of sphere of outer spherical surface shape is in bellows (3) geometrical center, wear ring (5) outer side surface is fixedly connected on one end of ball pivot ring (4), inner side surface is that inner ball surface and inner support (6) form spherical rotation pair, ball pivot ring (4) the other end and outer support (1) are welded to connect, limited support (7) is placed on outside ball pivot ring (4) and is welded to connect with inner support (6), wear ring (5), ball pivot ring (4), inner support (6) and limited support (7) form outside sphere revolute pair mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771185.7U CN203703442U (en) | 2013-12-01 | 2013-12-01 | Bellow type spherical joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771185.7U CN203703442U (en) | 2013-12-01 | 2013-12-01 | Bellow type spherical joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703442U true CN203703442U (en) | 2014-07-09 |
Family
ID=51053887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320771185.7U Expired - Lifetime CN203703442U (en) | 2013-12-01 | 2013-12-01 | Bellow type spherical joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703442U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697266A (en) * | 2013-12-01 | 2014-04-02 | 太原航空仪表有限公司 | Corrugated pipe spherical joint |
| CN105937681A (en) * | 2016-06-16 | 2016-09-14 | 苏州安特实业有限公司 | Spherical compensating mechanism |
| US10738923B2 (en) | 2015-07-09 | 2020-08-11 | Unison Industries Llc | Flexural spring-energized interface for bellowed ball-joint assemblies for controlled rotational constraint |
| FR3141227A1 (en) * | 2022-10-24 | 2024-04-26 | Safran Aerosystems | Ball joint for engine piping, piping and associated aircraft. |
-
2013
- 2013-12-01 CN CN201320771185.7U patent/CN203703442U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697266A (en) * | 2013-12-01 | 2014-04-02 | 太原航空仪表有限公司 | Corrugated pipe spherical joint |
| CN103697266B (en) * | 2013-12-01 | 2017-02-15 | 太原航空仪表有限公司 | Corrugated pipe spherical joint |
| US10738923B2 (en) | 2015-07-09 | 2020-08-11 | Unison Industries Llc | Flexural spring-energized interface for bellowed ball-joint assemblies for controlled rotational constraint |
| CN105937681A (en) * | 2016-06-16 | 2016-09-14 | 苏州安特实业有限公司 | Spherical compensating mechanism |
| FR3141227A1 (en) * | 2022-10-24 | 2024-04-26 | Safran Aerosystems | Ball joint for engine piping, piping and associated aircraft. |
| WO2024089318A1 (en) * | 2022-10-24 | 2024-05-02 | Safran Aerosystems | Ball joint for the piping of an engine, and associated piping and aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |