CN107620837A - A kind of bellows - Google Patents
A kind of bellows Download PDFInfo
- Publication number
- CN107620837A CN107620837A CN201710960014.1A CN201710960014A CN107620837A CN 107620837 A CN107620837 A CN 107620837A CN 201710960014 A CN201710960014 A CN 201710960014A CN 107620837 A CN107620837 A CN 107620837A
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Diaphragms And Bellows (AREA)
Abstract
A kind of bellows disclosed by the invention, including body, multiple valleys and multiple valley continuously replace on the longitudinal direction of body, the shape of multiple valleys is identical, the cross section of valley is U-shaped, the arc section of U-shaped is by the first arc section, second arc section, three-arc section is formed, the radius of curvature of first arc section and three-arc section is R1, the radius of curvature of second arc section is R2, radius R2 is less than radius R1, the center of circle of first arc section and three-arc section overlaps, the center of circle of second arc section and the center of circle of three-arc section are misaligned, the shape of valley is identical with valley.For the bellows in extrusion process, bent portion is not in the problem of inwall gauffer and outer wall are thinned, and extends service life, and the bellows high temperature resistant, high pressure resistant, can be used under 400 DEG C, pressure 250KG operating mode.
Description
Technical field
The present invention relates to the technical field of bellows, more particularly to a kind of bellows.
Background technology
During bellows use, the maximum stress of bellows structure occurs in trough inwall, is compression, will not be to knot
Structure produces destruction, and maximum tension stress occurs in crest inwall, and structure explosion is since crest inwall, therefore explosion position
It is both present at crest.And during bellows extrusion forming, tubing is plastically deformed under the constraint of mould, such as U-shaped ripple
Line pipe produces gauffer and outer ring wall thickness reduction in the inner ring of crooked position so that the crest inwall of bellows more holds when in use
Easily there is breakage, influence the service life of bellows.
The content of the invention
It is an object of the invention to provide a kind of bellows, solve one or more in above-mentioned prior art problem.
The present invention provides a kind of bellows, including body, multiple valleys and multiple valley connect on the longitudinal direction of body
Continuous alternating, the shape of multiple valleys is identical, and the cross section of valley is U-shaped, and the arc section of U-shaped is by the first arc section, the second circular arc
Section, three-arc section are formed, and the radius of curvature of the first arc section and three-arc section is R1, and the radius of curvature of the second arc section is
R2, radius R2 are less than radius R1, the center of circle coincidence of the first arc section and three-arc section, the center of circle of the second arc section and the 3rd circle
The center of circle of segmental arc is misaligned, and the shape of valley is identical with valley.
In some embodiments, 0.6-0.8 times of radius R1, the center of circle of the first arc section are located at the end of the first arc section
The midpoint of point and the end points line section of three-arc section, the center of circle of the second arc section are located at the end points and the of first arc section
On the perpendicular bisector of the end points line section of three-arc section, the distance in the center of circle of the second arc section and the center of circle of the first arc section is
0.1-0.3 times of radius R1.
In some embodiments, body is made up of multilayer stainless steel pipe.
In some embodiments, body is made up of four layers of stainless steel pipe.
Beneficial effect：The bellows service life length of the application, and the bellows high temperature resistant, high pressure resistant, can 400 DEG C,
Used under pressure 250KG operating mode.
Brief description of the drawings
Fig. 1 is a kind of structural representation of bellows in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of the single crest of bellows in an embodiment of the present invention.
Embodiment
With reference to Figure of description, the present invention is described in more detail.
As illustrated in fig. 1 and 2,
A kind of bellows, including body 1, multiple valleys 12 and multiple valley 13 are continuously handed on the longitudinal direction of body 1
Replace, the shape of multiple valleys 12 is identical, and the cross section of valley 12 is U-shaped, and the arc section of U-shaped is justified by the first arc section 121, second
Segmental arc 122, three-arc section 123 are formed, and the radius of curvature of the first arc section 121 and three-arc section 123 is R1, the second circular arc
The radius of curvature of section 122 be R2, and radius R2 is less than radius R1, the center of circle coincidence of the first arc section 121 and three-arc section 123,
The center of circle of second arc section 122 and the center of circle of three-arc section 123 are misaligned, and the shape of valley 13 is identical with valley 12.
Further, radius R2 is 0.6-0.8 times of the radius R1, and the center of circle of the first arc section 121 is positioned at the first circle
The midpoint of the end points of segmental arc 121 and the end points line section of three-arc section 123, the center of circle of the second arc section 122 is positioned at the first circle
On the end points of segmental arc 121 and the perpendicular bisector of the end points line section of three-arc section 123, the center of circle of the second arc section 122 with
The distance in the center of circle of the first arc section 121 is 0.1-0.3 times of radius R1.
Further, body 1 is made up of multilayer stainless steel pipe.Sandwich construction causes bellows high temperature resistant, high pressure resistant.
Further, body 1 is made up of four layers of stainless steel pipe.
Specifically, stainless steel pipe is 1Cr18Ni9Ti stainless steel materials.
Further,
A kind of bellows, including body 1, body 1 are made up of four layers of stainless steel pipe, multiple valleys 12 and multiple valley 13
Continuously replace on the longitudinal direction of body 1, the shape of multiple valleys 12 is identical, and the cross section of valley 12 is U-shaped, the circle of U-shaped
Segmental arc is made up of the first arc section 121, the second arc section 122, three-arc section 123, the first arc section 121 and three-arc section
123 radius of curvature is R1=4mm, and the radius of curvature of the second arc section 122 is R2=2.4mm, and radius R2 is the radius R1
0.6 times, the center of circle of the first arc section 121 is located at the end points of the first arc section 121 and the end points line section of three-arc section 123
Midpoint, the center of circle of the second arc section 122 is located at the end points of the first arc section 121 and the end points line section of three-arc section 123
Perpendicular bisector on, the distance in the center of circle of the center of circle of the second arc section 122 and the first arc section 121 is 0.4mm, valley 13
Shape is identical with valley 12.
Further,
A kind of bellows, including body 1, body 1 are made up of six layers of stainless steel pipe, multiple valleys 12 and multiple valley 13
Continuously replace on the longitudinal direction of body 1, the shape of multiple valleys 12 is identical, and the cross section of valley 12 is U-shaped, the circle of U-shaped
Segmental arc is made up of the first arc section 121, the second arc section 122, three-arc section 123, the first arc section 121 and three-arc section
123 radius of curvature is R1=5mm, and the radius of curvature of the second arc section 122 is R2=4mm, and radius R2 is the radius R1's
0.8 times, the center of circle of the first arc section 121 is located at the end points of the first arc section 121 and the end points line section of three-arc section 123
Midpoint, the center of circle of the second arc section 122 are located at the end points of the first arc section 121 and the end points line section of three-arc section 123
On perpendicular bisector, the distance in the center of circle of the center of circle of the second arc section 122 and the first arc section 121 is 1.5mm, the shape of valley 13
Shape is identical with valley 12.
Further,
A kind of bellows, including body 1, body 1 are made up of eight layers of stainless steel pipe, multiple valleys 12 and multiple valley 13
Continuously replace on the longitudinal direction of body 1, the shape of multiple valleys 12 is identical, and the cross section of valley 12 is U-shaped, the circle of U-shaped
Segmental arc is made up of the first arc section 121, the second arc section 122, three-arc section 123, the first arc section 121 and three-arc section
123 radius of curvature is R1=6mm, and the radius of curvature of the second arc section 122 is R2=4.2mm, and radius R2 is the radius R1
0.7 times, the center of circle of the first arc section 121 is located at the end points of the first arc section 121 and the end points line section of three-arc section 123
Midpoint, the center of circle of the second arc section 122 is located at the end points of the first arc section 121 and the end points line section of three-arc section 123
Perpendicular bisector on, the distance in the center of circle of the center of circle of the second arc section 122 and the first arc section 121 is 1.2mm, valley 13
Shape is identical with valley 12.
For a kind of bellows in embodiment provided by the invention in extrusion process, bent portion is not in interior
The problem of wall gauffer and outer wall are thinned, the ripple tube lifetime of preparation is not less than 20000 times, and sandwich construction causes bellows to bear
Temperature up to 400 DEG C, the pressure born reaches 250KG.
Presented above is only the preferred embodiment of the present invention, it is noted that to those skilled in the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these also should be regarded as the protection of the present invention
Within the scope of.
Claims (4)
1. a kind of bellows, including body (1), multiple valleys (12) and multiple valley (13) are in the longitudinal direction side of the body (1)
Continuous alternating upwards, it is characterised in that the shape of the multiple valley (12) is identical, and the cross section of the valley (12) is U-shaped,
The arc section of the U-shaped is made up of the first arc section (121), the second arc section (122), three-arc section (123), and described first
The radius of curvature of arc section (121) and three-arc section (123) is R1, and the radius of curvature of second arc section (122) is R2,
The radius R2 is less than radius R1, and the center of circle of first arc section (121) and three-arc section (123) overlaps, and described second
The center of circle of arc section (122) and the center of circle of three-arc section (123) are misaligned, shape and the valley (12) of the valley (13)
It is identical.
2. a kind of bellows according to claim 1, it is characterised in that the radius R2 is the 0.6- of the radius R1
0.8 times, the center of circle of first arc section (121) is located at the end points and three-arc section (123) of first arc section (121)
End points line section midpoint, the center of circle of second arc section (122) is located at the end points and of first arc section (121)
On the perpendicular bisector of the end points line section of three-arc section (123), the center of circle and the first arc section of second arc section (122)
(121) distance in the center of circle is 0.1-0.3 times of radius R1.
3. a kind of bellows according to claim 1, it is characterised in that the body (1) is by multilayer stainless steel pipe structure
Into.
4. a kind of bellows according to claim 3, it is characterised in that the body (1) is by four layers of stainless steel pipe structure
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960014.1A CN107620837A (en) | 2017-10-16 | 2017-10-16 | A kind of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960014.1A CN107620837A (en) | 2017-10-16 | 2017-10-16 | A kind of bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107620837A true CN107620837A (en) | 2018-01-23 |
Family
ID=61092228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710960014.1A Pending CN107620837A (en) | 2017-10-16 | 2017-10-16 | A kind of bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107620837A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612923A (en) * | 2018-06-28 | 2018-10-02 | 江苏星河集团有限公司 | A kind of bellows |
| CN109764202A (en) * | 2018-12-26 | 2019-05-17 | 江苏丰禾机械制造股份有限公司 | A kind of Bellows expansion section |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002303122A (en) * | 2001-04-02 | 2002-10-18 | Sumitomo Electric Ind Ltd | Particulate filter |
| JP2003049973A (en) * | 2001-06-01 | 2003-02-21 | Denki Kagaku Kogyo Kk | Corrugated pipe |
| CN103075577A (en) * | 2013-01-28 | 2013-05-01 | 中天日立射频电缆有限公司 | Novel leakage cable fixing device for high-speed railway |
| CN104043295A (en) * | 2009-10-14 | 2014-09-17 | 唐纳森公司 | Filter cartridge with seal member and method |
| CN104214446A (en) * | 2014-08-10 | 2014-12-17 | 安徽省宁国新鼎汽车零部件有限公司 | Corrugated pipe |
| CN204205524U (en) * | 2014-11-10 | 2015-03-11 | 富阳科威钢业有限公司 | A kind of single-wall corrugated pipe |
| CN205489409U (en) * | 2016-01-16 | 2016-08-17 | 福建和盛塑业有限公司 | Modified chlorination polyvinyl chloride cable protection double -ply bellows |
| CN106202643A (en) * | 2016-06-28 | 2016-12-07 | 西安航天动力研究所 | Method analyzed by a kind of three sections of circular arc primitive corrugated tubes based on the sequence of variance sensitivity |
| CN206130345U (en) * | 2016-08-25 | 2017-04-26 | 义乌市伊凌诺卫浴有限公司 | Pipe of making an uproar falls in telescopic stainless steel ripple |
| CN206369015U (en) * | 2016-12-07 | 2017-08-01 | 安徽都邦电器有限公司 | A kind of automobile brake aluminium bellows |
| CN207634823U (en) * | 2017-10-16 | 2018-07-20 | 南通世发船舶机械有限公司 | A kind of bellows |
-
2017
- 2017-10-16 CN CN201710960014.1A patent/CN107620837A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002303122A (en) * | 2001-04-02 | 2002-10-18 | Sumitomo Electric Ind Ltd | Particulate filter |
| JP2003049973A (en) * | 2001-06-01 | 2003-02-21 | Denki Kagaku Kogyo Kk | Corrugated pipe |
| CN104043295A (en) * | 2009-10-14 | 2014-09-17 | 唐纳森公司 | Filter cartridge with seal member and method |
| CN103075577A (en) * | 2013-01-28 | 2013-05-01 | 中天日立射频电缆有限公司 | Novel leakage cable fixing device for high-speed railway |
| CN104214446A (en) * | 2014-08-10 | 2014-12-17 | 安徽省宁国新鼎汽车零部件有限公司 | Corrugated pipe |
| CN204205524U (en) * | 2014-11-10 | 2015-03-11 | 富阳科威钢业有限公司 | A kind of single-wall corrugated pipe |
| CN205489409U (en) * | 2016-01-16 | 2016-08-17 | 福建和盛塑业有限公司 | Modified chlorination polyvinyl chloride cable protection double -ply bellows |
| CN106202643A (en) * | 2016-06-28 | 2016-12-07 | 西安航天动力研究所 | Method analyzed by a kind of three sections of circular arc primitive corrugated tubes based on the sequence of variance sensitivity |
| CN206130345U (en) * | 2016-08-25 | 2017-04-26 | 义乌市伊凌诺卫浴有限公司 | Pipe of making an uproar falls in telescopic stainless steel ripple |
| CN206369015U (en) * | 2016-12-07 | 2017-08-01 | 安徽都邦电器有限公司 | A kind of automobile brake aluminium bellows |
| CN207634823U (en) * | 2017-10-16 | 2018-07-20 | 南通世发船舶机械有限公司 | A kind of bellows |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612923A (en) * | 2018-06-28 | 2018-10-02 | 江苏星河集团有限公司 | A kind of bellows |
| CN109764202A (en) * | 2018-12-26 | 2019-05-17 | 江苏丰禾机械制造股份有限公司 | A kind of Bellows expansion section |
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Application publication date: 20180123 |