CN85100678B - (双)波峰有内凹的挠性元件 - Google Patents

(双)波峰有内凹的挠性元件 Download PDF

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CN85100678B
CN85100678B CN85100678A CN85100678A CN85100678B CN 85100678 B CN85100678 B CN 85100678B CN 85100678 A CN85100678 A CN 85100678A CN 85100678 A CN85100678 A CN 85100678A CN 85100678 B CN85100678 B CN 85100678B
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flexible element
trough
section
flexible
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CN85100678A (zh
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王亮
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Cars Locomotive & Car Research Institute
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Cars Locomotive & Car Research Institute
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Priority to CN85100678A priority Critical patent/CN85100678B/zh
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Publication of CN85100678B publication Critical patent/CN85100678B/zh
Priority to US06/841,493 priority patent/US4709731A/en
Priority to DE198686104197T priority patent/DE197440T1/de
Priority to EP86104197A priority patent/EP0197440B1/en
Priority to DE8686104197T priority patent/DE3671793D1/de
Priority to AT86104197T priority patent/ATE53446T1/de
Priority to JP61074102A priority patent/JPS61282668A/ja
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/10Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/108Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with only one corrugation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Materials For Medical Uses (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Details Of Aerials (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Joints Allowing Movement (AREA)

Abstract

本发明是和(双)波峰有内凹的挠性元件有关的,它是由一个或多个挠性单元构成,其中每个挠性单元的形线是由下波谷(半径为R↓[1])与(双)波峰(半径为R↓[2])(其中R↓[1]=R↓[2])以及上波谷(半径为R↓[3],R↓[3]=R↓[1]或R↓[3]≠R↓[1])等几个圆弧段彼此圆滑地相切构成,这种挠性元件能使应力与应变均匀,并提高挠性,使其能承受较大的角偏转等。它可作为敏感、密封、减振、补偿或膨胀节等元件,广泛地用于自动控制和仪器仪表等领域。

Description

(双)波峰有内凹的挠性元件
本发明是一种挠性元件,它可作为敏感元件、密封元件、减振元件、补偿元件或膨胀节等通用机械联接件而广泛地用于自动控制、仪器仪表、动力机械、化工炼油和原子能装置上。
众所周知,现有的由一个、两个或多个挠性单元及其两端的圆筒段组成的圆柱形挠性元件,作为常见的通用机械联接件,还存在着某些不足之处。例如成型半径较小,应力分布不均,容易产生局部应力集中,导致疲劳寿命降低;一个波的当量轴向位移较小;横向挠曲的性能较差,在某些情况下光利用挠性元件自身的弹性难以补偿设备的安装误差;当角偏转较大时,容易发生挤扁或折皱。美国专利US02876801金属褶合式导管(METAL CONVOLUTION TUBING patented Mar.10,1959)虽然提供了一个褶合的可挠的(双)波峰的管结构;但其波谷与波峰的截面形状不相同,波峰的成型半径较小,波谷根部平直;截面形线中有直线段和圆弧连接处,使各部位的应力分布不均。美国专利US 03315704挠性的波纹管(FLEXIBLE BELLOWS patented Apr.25,1967)虽然也提供了一个双波峰的波纹管,但其下波谷与波峰的成型半径不相等,截面形线中有直线段和圆弧连接处,下波谷的成型半径又较小,因而应力分布不会均匀。
鉴于上述的实际问题,本发明对这种(双)波峰有内凹的挠性元件的形线作了适当的较合理的改进,使其在受力时各部分应力变形均匀,从而提高疲劳寿命;使轴向长度可适当缩短,又能吸收较大的额定位移(特别是横向挠曲和角偏转);达到改进设计、减轻重量、节约材料和降低成本的目的。
根据本发明(双)波峰有内凹的挠性元件,其中每一个挠性单元的截面形线是由下波谷、(双)波峰和上波谷(即在通常的波纹挠性元件的波峰上增加了内凹而形成的两个波峰及一个波谷,简称为双波峰及上波谷)等几段圆弧彼此圆滑地相切而构成,并且下波谷的成型半径R1与(双)波峰的成型半径R2相等,
即 R 1 =R2
根据上波谷的成型半径R3的不同,本发明(双)波峰有内凹的挠性单元的截面形线,又可分为如下的两种形式:
第一种形式是上述的下波谷成型半径R1和上述的(双)波峰成型半径R2以及上述的上波谷成型半径R3均相等,并且各个圆弧线彼此圆滑地相切;
即 R1=R2=R3
第二种形式是上述的下波谷成型半径R1和上述的(双)波峰成型半径R2相等,而上述的上波谷成型半径R3和前两者不相等,但各个圆弧线彼此圆滑地相切;
Figure 85100678_IMG1
下面参照附图,说明本发明的实施例及其优点:
作为实施例可参照图1和图2。
图1是本发明(双)波峰有内凹的挠性元件的一个挠性单元的截面形线图。
图2是本发明(双)波峰有内凹的挠性元件的一个挠性单元的纵剖面图。
由图1可见,根据本发明(双)波峰有内凹的挠性元件的一个挠性单元的截面形线(A),是由两个半径为R1的下波谷圆弧(A1)和一个半径为R2的(双)波峰圆弧(A2)以及一个半径为R3的上波谷圆弧(A3)彼此圆滑地相切构成,其中R1=R2=R3。截面形线(A)与两端的连续的曲线过渡段(B)以及圆筒段(C)一起共同组合成一个完整的连续的挠性元件。
通常轴向载荷F是与圆筒段一致,以切线方向作用并传递到本发明的截面形线的挠性单元上。
为了清楚地表示本发明(双)波峰有内凹的挠性单元截面形线的优点,这里作出了图3和图4;
图3是本发明(双)波峰有内凹的挠性单元与US02876801金属褶合式导管的截面形线对比。(本发明用实线表示)
图4是本发明(双)波峰有内凹的挠性单元与US03315704挠性的波纹管的截面形线对比。(本发明用实线表示)
根据图1、图3和图4可看出本发明和现有技术的截面形线的主要区别如下表所列:
截面形线 下波谷与波 峰的成型 半径对比 下波谷与波 峰的连接 波峰与上波 谷的连接
本发明 R1=R2 等圆弧相 切连接 等圆弧相 切连接
US02876801 R1'>R2' 直线段 D连接 直线段 G连接
US03315704 R1">R2" 直线段 G连接 圆弧相 切连接
根据本发明(双)波峰有内凹的挠性元件,由于在每个挠性单元中形成R1=R2=R3(或R1=R2,R3≠R1),而且波峰与波谷均由等圆弧相切构成的形线;因而它能具有下列优点:
1.由于形线构成上消除了直线段连接,因而使各部位的应力分布较均匀,可避免局部应力集中,延长了使用寿命;
2.横向的和纵向的挠曲的能力均有所提高;
3.在承受较大的角偏转时,不易产生挤扁或折皱;
4.可在有限的长度下,吸收较大的额定位移。

Claims (4)

1、一个(双)波峰有内凹的挠性元件,它是由一个、两个或多个挠性单元及两端的圆筒段组成,上述的挠性单元的截面形线是由下波谷、波峰和上波谷等几段构成,它的特征在于上述的挠性单元截面形线是由下波谷、(双)波峰和上波谷等几段圆弧彼此圆滑地相切而构成,并且下波谷的成型半径R1和(双)波峰的成型半径R2相等,即R1=R2
(双)波峰间的内凹所形成的上波谷的成型半径R3等于(或者不等于)上述的下波谷的成型半径R1(或双波峰的成型半径R2),即
R3=R1-R2
或R3≠R1(或R3≠R2)。
CN85100678A 1985-04-01 1985-04-01 (双)波峰有内凹的挠性元件 Expired CN85100678B (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN85100678A CN85100678B (zh) 1985-04-01 1985-04-01 (双)波峰有内凹的挠性元件
US06/841,493 US4709731A (en) 1985-04-01 1986-03-10 Flexible element of (dual) wave crest
DE198686104197T DE197440T1 (de) 1985-04-01 1986-03-26 Biegsames element.
EP86104197A EP0197440B1 (en) 1985-04-01 1986-03-26 Flexible element
DE8686104197T DE3671793D1 (de) 1985-04-01 1986-03-26 Biegsames element.
AT86104197T ATE53446T1 (de) 1985-04-01 1986-03-26 Biegsames element.
JP61074102A JPS61282668A (ja) 1985-04-01 1986-03-31 凹みを有した波頭状又は複波頭状の可撓素子

Applications Claiming Priority (1)

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CN85100678A CN85100678B (zh) 1985-04-01 1985-04-01 (双)波峰有内凹的挠性元件

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CN85100678A CN85100678A (zh) 1985-09-10
CN85100678B true CN85100678B (zh) 1985-09-10

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US (1) US4709731A (zh)
EP (1) EP0197440B1 (zh)
JP (1) JPS61282668A (zh)
CN (1) CN85100678B (zh)
AT (1) ATE53446T1 (zh)
DE (2) DE3671793D1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523833A (zh) * 2019-07-18 2019-12-03 燕山大学 一种单向伸长补偿的y型波纹管、成形装置及成形方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158787A1 (de) * 2001-11-30 2003-06-12 Bosch Gmbh Robert Brennstoffeinspritzanlage
CN107191693B (zh) * 2017-06-06 2023-11-24 周成纤 螺旋双峰结构波纹管及其制造方法
CN107906274B (zh) * 2017-10-31 2019-12-31 无锡市永兴金属软管有限公司 一种具有减震功能的波纹金属软管制造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE83341C (zh) *
FR746015A (fr) * 1932-02-06 1933-05-20 Cie Des Forges D Audincourt Et Raccord compensateur à grande élasticité pour tuyauteries
DE842435C (de) * 1947-11-22 1952-06-26 Metallschlauchfabrik A G Mehrfachwandiger Federkoerper
DE801603C (de) * 1948-10-02 1951-01-15 Steinmueller Gmbh L & C Linsenkompensator
US2876801A (en) * 1955-03-10 1959-03-10 Breeze Corp Metal convolution tubing
US3315704A (en) * 1963-06-17 1967-04-25 Gen Connector Corp Flexible bellows
FR2318379A3 (fr) * 1976-01-12 1977-02-11 Mazier Paul Perfectionnements aux soufflets a ondes deformables pour tuyauteries et applications analogues

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110523833A (zh) * 2019-07-18 2019-12-03 燕山大学 一种单向伸长补偿的y型波纹管、成形装置及成形方法
CN110523833B (zh) * 2019-07-18 2020-12-01 燕山大学 一种单向伸长补偿的y型波纹管、成形装置及成形方法

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US4709731A (en) 1987-12-01
CN85100678A (zh) 1985-09-10
JPS61282668A (ja) 1986-12-12
EP0197440B1 (en) 1990-06-06
EP0197440A3 (en) 1987-06-03
DE197440T1 (de) 1987-02-05
ATE53446T1 (de) 1990-06-15
DE3671793D1 (de) 1990-07-12
EP0197440A2 (en) 1986-10-15

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