CN2171038Y - 活塞和活塞杆装置 - Google Patents
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- CN2171038Y CN2171038Y CN93219695U CN93219695U CN2171038Y CN 2171038 Y CN2171038 Y CN 2171038Y CN 93219695 U CN93219695 U CN 93219695U CN 93219695 U CN93219695 U CN 93219695U CN 2171038 Y CN2171038 Y CN 2171038Y
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0227—Telescopic characterised by the piston construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3228—Constructional features of connections between pistons and piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J7/00—Piston-rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
- Y10T29/49268—Piston making with other attaching provision for connecting rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
- Y10T29/49911—Securing cup or tube between axially extending concentric annuli by expanding inner annulus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
- Y10T29/4994—Radially expanding internal tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4966—Deformation occurs simultaneously with assembly
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
一种活塞和活塞杆装置,活塞(5)和活塞杆(10)
相互以气密方式连接,活塞(5)的一端有一封闭的底
(30)和一盲孔(31),而活塞杆(10)的套管状部分(34)
就***盲孔(31)内。借助作用于活塞(5)和活塞杆
(10)之间的力(P),使该套管状部分(34)变形成一胀
出部分(40),且突入盲孔(31)的环形槽(32)内,从而
通过锁紧形式达到了活塞(5)和活塞杆(10)间的连
结。
Description
本发明与具有活塞和活塞杆以及活塞和活塞杆之间的气密连结的纵向可调气压弹簧的活塞和活塞杆装置有关。
在纵向可调气压弹簧内有一位于壳体上与活塞杆出口相对的一侧的驱动阀。活塞和活塞杆之间的连结必须不漏气,为的是使由活塞互相分离的两内腔在气压弹簧内以气密方式分开。为此,在活塞的外周面和相应壳体内壁之间设置一密封,而在活塞杆和活塞之间一定要设置附加密封,因为活塞呈环状盘且由铆在活塞杆上的活塞杆栓形的端头所穿过。这种结构在纵向可调气压弹簧中是已知的,因为上述可调气压弹簧例如来自德国专利1812282(相当于美国专利3656593)或欧洲专利0447 675A1(相当于美国专利5141210)已广泛应用。这些装置意味着需要大的建造费用,而且也不保证在使用过程中不漏气,结果便会使这种气压弹簧装置变成不能使用。
本发明的目的是提供一种既结构简单且绝对气密的普通型活塞杆和活塞装置。
在具有气密结构的纵向可调气压弹簧的活塞和活塞杆装置中,根据本发明的活塞有一封闭底和一个开在其一侧的盲孔,活塞杆的套管状部分安置在活塞的盲孔内且通过锁紧形式与活塞连结等特点来达到本发明的目的,既然活塞有一封闭底故在整个截面是封闭的,那么活塞杆和活塞的连结是绝对气密。而且活塞杆和活塞的连结也是不可脱开的,所以也就可靠,这就形成活塞和活塞杆之间的锁紧且不仅是一种例如螺纹的连结。当然这种活塞的活塞杆装置不仅能用在纵向可调气压弹簧上而且还用于例如液压缸内。
权利要求2和3尤其反映了通过锁紧形式连结的最佳实施例。权利要求4则保证了活塞杆精确地对中和相对于活塞的定向位置。由于权利要求5和6,活塞杆在部分长度上都为套管状截面,这样就完全可容纳活塞的盲孔内,而且还盖住至少一个槽,结果杆就能变形而突入槽内。
通过结合附图对本发明实施例的叙述就可对本发明的特点、细节和优点有进一步的了解。
图1示出一具有活塞和活塞杆装置的纵向可调气压弹簧;
图2示出在相互连结之前活塞以及紧固到活塞上的活塞杆端;
图3示出活塞和活塞杆连结处的制造。
图1所示的纵向可调气压弹簧有一用二个不同直径但同轴的管组成的壳体1,也就是内管2同轴地套在外管3内,由于内管2和外管3的直径不同,故而在外管3和内管2之间形成一环形腔4。
活塞5下面还将详细说明安置成在内管2内作轴向位移并借助气密型密封圈6,使其与内管2的内壁下形成密封,O型密封圈6位于活塞5上园柱部分的外周面9上的环形槽8内。活塞5紧固到活塞杆10的一端,活塞杆10沿壳体1和活塞杆10的共同的纵向中心轴线11同轴地导向和移动,活塞杆10可自壳体1的一端导出,在壳体的这一端上由封闭园盘12来封闭,该园盘12的外周面与外管3的内壁14由一气密型密封环13进行密封。封闭园盘12由外管3的卷边15挡住不让盘12轴向移出,一杯形套管16在内侧压向封闭园盘12,而套管16则容纳一多唇密封17且这些唇口靠压在活塞杆10上进行密封,这样就不会有任何气体沿活塞杆10的表面向外逸出。在壳体1的内腔18中,一定中心件19压向套管16,定中心件19压靠在外管3的内壁14上有且设有径向支撑在内管2的内壁7上的肋20,即内管2由肋20定中心,内管2也在轴向上牢固地支撑在这些肋20上,也就是在轴向上单向固定。由于只有肋20用来定中心且轴向支撑内管2,故在该部分,环形腔4与由活塞5,活塞杆出口侧的壳体1端头以及内管2的内壁7所限定的内管2的内腔18相连,结果,在肋20之间形成了从内腔18到环形腔4的通道21。
在壳体1与活塞杆出口处相对的一端上,安置一阀22,借助该阀22,位于活塞5和阀22之间内管2的内腔23就能与环形腔4相连或分开而且还能与另一内腔18相连或分开。
该阀22有一设置在轴向中心部分的阀体24,该阀体还带有一压靠在外管3内壁14的环形凸缘25,从而阀体24定中在外管3内。借助二密封圈26,27,则阀体24以气密方式分别与外管3的内壁14和内管2的内壁7成密封。阀22有一与阀体24的轴线11同轴引导的驱动销28,借助把驱动销28压入阀体24,阀22就打开,那么内腔23就能与环形腔4相通,因此也就与相对的内腔18相通。在图1中,所示的驱动销28位于阀22关阀的位置,内腔18。23和环形腔4充满压缩气体和少量的油,而油充当活塞杆10的润滑剂,因此也用于活塞杆10和密封件17之间的密封性能的改进。借助外管3的卷边29,阀22的阀体24就被挡住,使阀体不会在壳体1的轴线11方向被推出。迄今为止,所述的纵向可调气压弹簧已为大家公知并在实践中得到广泛应用,德国专利1812282(相当于美国专利3656593)或欧洲专利EP0447 675A1(相当于美国专利5141210)便是已知的例子。
从图中可看出,活塞5是一封闭体,也就是与活塞杆相对的一侧且面向内腔23有一封闭的底30,活塞杆10安置在活塞5的盲孔31内,盲孔31呈园柱形且园柱部分邻近其底30有一约呈梯形截面的环形槽32,它从盲孔径向向外有一定锥度。盲孔31带有内径为d的环形园柱部分33,33′它们分别位于杯形槽32的两侧,与活塞5的外周面9上容纳密封圈6的环形槽8相比,环形槽32在轴线11方向上位于更靠近底30处。
活塞杆10在与活塞5相连的其端头上,带有一套管状部分34,它由一与轴线11同轴的盲孔36形成一薄的环形园柱壁35。套管状部分34的外径D同于活塞10的外径且等于活塞5的盲孔31的内径d,这样套管状部分34就能自由推入活塞5的盲孔内,该套管状部分34的长度小于盲孔31的深度b但是大于从底部30到环形槽32的最大距离c,结果套管状部分34完全进入盲孔31内且在活塞5中的环形槽32完全被套管状部分34的薄壁35所盖住。另一方面,活塞杆10的实心部分也邻近盲孔31的开口37。设定套管状部分34的直径D约为10毫米,套管状部分34的壁35的厚度e则一般为0.7毫米至1毫米,活塞杆10由普通的结构钢制成,活塞5由轻金属合金制成,通常为压铸铝。
为了使活塞杆5和活塞10之间相连结,将活塞杆10的套管状部分34推入到活塞5的盲孔31内,一直到壁35紧靠活塞5的底30为止,活塞5则保持在压板39中与活塞外形基本相配的凹穴38内。
用例如水压机(未示出)沿轴线11对活塞杆10施加一个方向朝向活塞5的力P。紧靠在活塞5底部30的套管状部分34在此压力作用下,其管壁就膨胀而进入到活塞5的盲孔31之环形槽32内。这样管壁膨胀就形成了一从壁35向外凸出的环形凸缘40且至少部分地填满了环形槽32,结果活塞杆10和活塞5就在轴线11的方向相互紧紧地连在一起。活塞5与活塞杆10的连结是气密的,因为活塞5有一封闭的底30,也就是在上述图1所示的气压弹簧中不会有压缩气体在活塞杆附近,从内腔18逸入内腔23。底30是封闭的,因此在活塞杆10的附近不必采用任何特别的密封措施。在封闭底30邻近,活塞5的外周面9有一锥度部分41,在装配气压弹簧时,可方便把活塞5引入一管2中,这就能防止外周面9与内管2的内壁7之间的边缘发生压碰。
Claims (9)
1、纵向可调气压弹簧的活塞和活塞杆装置包含一活塞杆(10),一活塞(5)和一活塞(5)和活塞杆(10)之间的气密连结,其特征在于活塞(5)有一封闭底(30)和一个在其一侧的盲孔(31),其中活塞杆(10)在其一端有一安在活塞(5)的盲孔(30)内的套管状部分(34),并通过锁紧形式与活塞(5)连结。
2、根据权利要求1所述的活塞和活塞杆装置,其特征在于盲孔(31)设置有至少一槽(环形槽32);而活塞杆(10)的套管状部分(34)的胀出部分(环形凸缘40)突入上述的槽内。
3、根据权利要求1或2所述的活塞和活塞杆装置,其特征在于盲孔(31)设置有至少一环形槽(32),而套管状管部分(34)的环形突缘(40)突入环形槽(32)内。
4、根据权利要求1至3中任何一项所述的活塞和活塞杆装置,其特征在于在至少一个槽(环形槽32)的两侧设置有盲孔(31)的环形园柱部分(33,33′),其内径d约等于活塞杆(10)的套管状部分(34)的外径(D)。
5、根据权利要求1至4中任何一项所述的活塞和活塞杆装置,其特征在于上述套管状部分(34)的长度(a)小于活塞(5)中盲孔(31)的深度(b)。
6、根据权利要求3至5中任何一项所述的活塞和活塞杆装置,其特征在于活塞杆(10)的套管状部分(34)的长度(a)大于底(30)和环形槽(32)之间的最大距离(c)。
7、根据权利要求1至6中任何一项所述的活塞和活塞杆装置,其特征在于活塞杆(10)是实心的。
8、根据权利要求1至7中任何一项所述的活塞和活塞杆装置,其特征在于活塞杆(10)是由结构钢制成的。
9、根据权利要求1至8中任何一项所述的活塞和活塞杆装置,其特征在于活塞由轻金属合金,最好为压铸铝制成。
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Application Number | Priority Date | Filing Date | Title |
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DE4226180A DE4226180A1 (de) | 1992-08-07 | 1992-08-07 | Kolben-Kolbenstangen-Einheit und Verfahren zu deren Herstellung |
DEP4226180.5 | 1992-08-07 |
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CN2171038Y true CN2171038Y (zh) | 1994-07-06 |
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CN93219695U Expired - Fee Related CN2171038Y (zh) | 1992-08-07 | 1993-08-06 | 活塞和活塞杆装置 |
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US (1) | US5388677A (zh) |
KR (1) | KR940005951U (zh) |
CN (1) | CN2171038Y (zh) |
DE (1) | DE4226180A1 (zh) |
ES (1) | ES1025447Y (zh) |
FR (1) | FR2694612A1 (zh) |
IT (1) | IT230622Y1 (zh) |
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CN102128261A (zh) * | 2011-03-07 | 2011-07-20 | 成都三环金属制品有限公司 | 一种活塞与活塞杆的连接结构及其安装方法 |
CN103511621A (zh) * | 2012-06-17 | 2014-01-15 | 芜湖市艾德森自动化设备有限公司 | 一种气缸活塞 |
CN107000720A (zh) * | 2014-12-03 | 2017-08-01 | 纽约气闸有限公司 | 改进的制动活塞组件 |
CN108454341A (zh) * | 2015-10-23 | 2018-08-28 | 南安市鑫灿品牌运营有限公司 | 一种汽车 |
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DE19527113A1 (de) * | 1995-07-25 | 1997-01-30 | Suspa Compart Ag | Verfahren zum Anbringen einer Ringscheibe an einer Kolbenstange und Werkzeug zur Durchführung dieses Verfahrens |
DE19651653A1 (de) * | 1996-12-12 | 1998-06-18 | Suspa Compart Ag | Längenverstellbare Säule für Stühle oder dergleichen |
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-
1992
- 1992-08-07 DE DE4226180A patent/DE4226180A1/de not_active Withdrawn
-
1993
- 1993-07-26 ES ES9302092U patent/ES1025447Y/es not_active Expired - Fee Related
- 1993-07-29 IT IT93MI000637U patent/IT230622Y1/it active IP Right Grant
- 1993-07-30 FR FR9309444A patent/FR2694612A1/fr active Pending
- 1993-08-06 CN CN93219695U patent/CN2171038Y/zh not_active Expired - Fee Related
- 1993-08-06 KR KR2019930015045U patent/KR940005951U/ko not_active Application Discontinuation
- 1993-08-06 US US08/102,796 patent/US5388677A/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101832353A (zh) * | 2010-05-19 | 2010-09-15 | 王悦 | 一种复合气垫式气缸缓冲消能器 |
CN102128261A (zh) * | 2011-03-07 | 2011-07-20 | 成都三环金属制品有限公司 | 一种活塞与活塞杆的连接结构及其安装方法 |
CN103511621A (zh) * | 2012-06-17 | 2014-01-15 | 芜湖市艾德森自动化设备有限公司 | 一种气缸活塞 |
CN107000720A (zh) * | 2014-12-03 | 2017-08-01 | 纽约气闸有限公司 | 改进的制动活塞组件 |
CN107000720B (zh) * | 2014-12-03 | 2019-08-09 | 纽约气闸有限公司 | 改进的制动活塞组件 |
CN108454341A (zh) * | 2015-10-23 | 2018-08-28 | 南安市鑫灿品牌运营有限公司 | 一种汽车 |
CN108454341B (zh) * | 2015-10-23 | 2021-09-21 | 南京六合科技创业投资发展有限公司 | 一种汽车 |
Also Published As
Publication number | Publication date |
---|---|
ES1025447U (es) | 1994-01-01 |
DE4226180A1 (de) | 1994-02-10 |
ITMI930637U1 (it) | 1995-01-29 |
IT230622Y1 (it) | 1999-06-09 |
ES1025447Y (es) | 1994-08-01 |
ITMI930637V0 (it) | 1993-07-29 |
US5388677A (en) | 1995-02-14 |
FR2694612A1 (fr) | 1994-02-11 |
KR940005951U (ko) | 1994-03-22 |
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CF01 | Termination of patent right due to non-payment of annual fee |