EP1448900B1 - Klemmvorrichtung und stelleinrichtung - Google Patents
Klemmvorrichtung und stelleinrichtung Download PDFInfo
- Publication number
- EP1448900B1 EP1448900B1 EP02787823A EP02787823A EP1448900B1 EP 1448900 B1 EP1448900 B1 EP 1448900B1 EP 02787823 A EP02787823 A EP 02787823A EP 02787823 A EP02787823 A EP 02787823A EP 1448900 B1 EP1448900 B1 EP 1448900B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- clamping device
- clamping
- helical plate
- plate spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 title claims 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000036316 preload Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/262—Locking mechanisms using friction, e.g. brake pads
Definitions
- the present invention relates to a clamping device with the features of the preamble of claim 1 as well an adjusting device, in particular a working cylinder, with a piston rod.
- Clamping devices for axially moving rods for example Piston rods of working cylinders or stationary Rods are known. Such a clamping device is described in DE 37 07 046 A1. Clamping devices of this Type are with respect to the pole to be clamped moving component or device connected, and the clamping force For example, by means of a clamping piston with inner cone and a clamping sleeve with outer cone generated. Because the height the clamping force depends directly on the height of the spring force is, are for high holding or clamping forces in the state the technology consistently uses spring assemblies made of disc springs, which, depending on the requirement, are arranged in alternating lines consist of one or more layered disc springs and are arranged coaxially.
- the operation at high forces is as follows.
- To solve the clamping sleeve of the rod is the tensioning piston with hydraulic pressure against the spring force of the spring device shifted, so that the clamping sleeve at its outer cone is no longer applied and the rod is thus free.
- the clamping action i. to charge the Outer cone of the clamping sleeve, the hydraulic pressure is removed, so that the spring force of the spring device is effective can be.
- a clamping device for an axially translational and / or rotationally moving rod a housing, a clamping sleeve axially fixed in the housing, a movable in the housing designed as a cylinder Tensioning piston and at least one piston in Direction of the clamping sleeve in the locking state biasing screw plate spring.
- Screw disc springs per se are known from DE 29 16 446 A1 known. These are two upright and diagonal to the central axis wound coil springs, in the inverse Sense are screwed together so that after the screwed against each other inclined flat band the spring coils plate spring column is claimed.
- the clamping device according to the invention with ertellerfedern has the great advantage that even with a spring break no suspension travel is lost and so the set Spring force remains virtually unchanged.
- This attribute gives a clamping device in which the holding force produced by spring force, a high degree of functional reliability, so that, for example, the rules of Employers' liability insurance association for the use of spring-acting locking / holding devices for hydraulic presses and injection molding machines using helical disc fields are fulfilled.
- an inventive invention Arrangement of several helical plate springs axially parallel the circumference of the bar to be clamped. With this arrangement is a required total spring force on a plurality of Split springs. This will make a use of springs with relatively small diameter also possible in applications, which require a high preload force.
- This invention Arrangement makes it possible in the first place To use screw-spring springs for such applications, there screw spring springs manufacturing reasons as single springs only up to a size of approx. 50 mm rod diameter to be delivered. With this solution it is now possible, even very large spring-acting clamping devices to realize. These had to because of missing plate spring sizes previously operated hydraulically, but with what Reductions in the reliability were connected. Another aspect to increase the reliability is that in this multiple spring column arrangement the functional reliability even with total failure a spring column is guaranteed, since with appropriate Spring design the remaining spring columns for the necessary Holding power.
- the at least one Screw disc spring guided by a bolt the only in the region of the ends of the spring, the helical spring leads to the inner diameter. This will cause the occurring Friction negligible small, since the guide only takes place at the spring ends.
- the at least one helical spring spring coaxial with the arranged clamping bar.
- clamping devices up to be designed a rod diameter of 50 mm maximum.
- it turns out to vote the spring characteristic in relation to the required space as advantageous if in the tensioning piston and / or in a lid of Clamping devices Recesses for holding a or both of the ends of the helical spring are provided.
- the at least one acts Screw disc spring directly on the clamping sleeve, whose Outside cone acts on an associated inner cone of the housing and their inside diameter is due to the reduced axial displacement in the locked state, resulting in a clamping of the moving rod.
- FIG. 2 shows a clamping device as it stands the technique, in particular from DE 37 070 46 A1, known is.
- the known clamping device 8 has a three-part Housing 9, in which a rod 10 by means of a clamping sleeve 11 is clamped. This clamping is done via a tensioning piston 12, by applying a coaxial arranged disc spring assemblies 13 with a biasing force is provided. The release of the clamping sleeve 11 takes place by means of a pressure medium supply to the tensioning piston 12, wherein the force of the biasing force exerted by the pressure means counteracts the spring package 13.
- the disc spring package is thus both in the clamping as also in the release position under permanent pretension, i.e. all, the disc spring package forming disc springs are biased by the same amount, with the bias higher in the release position. Since the disc springs are connected in series, gives in a single stratification each spring on each full biasing force from the tensioning piston.
- FIG. 1 shows a longitudinal section through a Clamping device according to the invention 1.
- the inventive Clamping device 1 also consists of a three-part Housing 2, in which a rod 3 by means of a clamping sleeve 4th can be clamped. This clamping is done via a Tensioning piston 5, of several around the circumference of the rod. 3 axially parallel arranged fferentellerfedern acted upon is.
- the axially parallel to the rod 3 arranged Screw disc springs 6 generate the necessary preload or clamping force for the clamping sleeve 4.
- shims 7 are provided between the individual helical spring column and the tensioning piston 5 are introduced.
- FIG. 1a shows a longitudinal section through an inventive device Clamping device, wherein on both sides of the longitudinal center line two different embodiments for the Arrangement and leadership of yentellerfederklalen shown are.
- FIG. 1a left of the longitudinal center line Embodiment is in a housing wall or the housing shell forming tube 24 a recess 21 with provided in a circular section plan, in the helical plate springs 6 'protrude with a portion of its circumference.
- a recess 21 with provided in a circular section plan, in the helical plate springs 6 'protrude with a portion of its circumference.
- the use of Screw disc springs with larger diameter allows, whereby at the same size of the clamping device housing, i.e. same outer dimensions of the clamping device, the use of screw-spring springs with larger Diameter and thus the generation of a larger preload force becomes possible.
- FIG. 3a A plan view of the described Embodiment with the recesses 21 with nikabitessförmigem Plan view is shown in Figure 3a.
- FIG. 1a Another embodiment is shown in FIG. 1a on the right represented by the longitudinal center line.
- this embodiment are in the clamping piston 5 and in a housing cover 20 of the clamping device indentations 22 provided in which the ends of the screw disc spring columns 6 " are included.
- This will - again at the same External dimensions of the clamping device - the use of longer Screw plate springs 6 "allows to this embodiment is also in Figure 3a, right represented by the longitudinal center line.
- the SSentellerfedern not on her inside diameter, but on her Outer diameter to lead.
- this is the type of Leadership also feasible through two holes, each surrounded only one of the two spring ends 16 and 17 and the Apply outside diameter of the spring ends to the guide. These two holes may be, for example, the grooves 22 of Figure 1a act.
- FIG. 6 shows a longitudinal section through an inventive device Clamping device in which a helical plate spring 19 arranged coaxially with the rod 3 to be clamped is.
Landscapes
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Springs (AREA)
- Clamps And Clips (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Finger-Pressure Massage (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Vehicle Body Suspensions (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Description
- Günstigere Federkennlinien bei gleichem Einbauraum.
- Die Vorspannkraft verringert sich um bis zu 10 %, was einen entsprechend geringeren Entriegelungsdruck ergibt, da praktisch keine Federreibung auftritt.
- Es tritt kein Verschleiß an den Auflagepunkten auf.
- Die einteilige Herstellung aus Bandmaterial mit einem nicht unterbrochenen Faserverlauf wirkt sich günstig auf die Lebensdauer des Federelements aus.
- Durch die einteilige Ausführung ergeben sich Montagevorteile, und die Verwechslungsgefahr beim Schichten der Einzeltellerfedern zum Federpaket entfällt.
- Es sind keine Schmiermittel notwendig.
- Schraubentellerfedern sind kostengünstiger.
- Figur 1
- zeigt in schematischer Darstellung einen Längsschnitt durch eine erfindungsgemäße Klemmvorrichtung.
- Figur 1a
- zeigt einen Längsschnitt durch eine erfindungsgemäße Klemmvorrichtung gemäß Figur 1, wobei zu beiden Seiten der Längsmittellinie zwei unterschiedliche Ausführungsbeispiele der Anordnung einer Schraubentellerfedersäule dargestellt sind.
- Figur 2
- zeigt in schematischer Darstellung einen Längsschnitt durch eine aus dem Stand der Technik bekannte Klemmvorrichtung.
- Figur 3
- zeigt eine Draufsicht auf eine erfindungsgemäße Klemmvorrichtung mit um den Umfang verteilten Schraubentellerfedern.
- Figur 3a
- zeigt einen Querschnitt durch die Klemmvorrichtung der Figur 1a auf der Höhe der Schraubentellerfedern.
- Figur 4
- zeigt in seitlicher Ansicht eine teilgeschnittene Schraubentellerfeder, die lediglich im Bereich ihrer Federenden an ihrem Innendurchmesser durch einen Bolzen geführt ist.
- Figur 5
- zeigt in seitlicher Ansicht eine teilgeschnittene Schraubentellerfeder, die lediglich im Bereich ihrer Federenden an ihrem Außendurchmesser in einer Bohrung/Eindrehung geführt ist.
- Figur 6
- zeigt einen Längsschnitt durch eine Klemmvorrichtung mit einer koaxial zu der zu klemmenden Stange angeordneten Schraubentellerfeder.
Claims (10)
- Klemmvorrichtung für eine axial translatorisch und/oder drehend bewegte Stange (3), mit einem Gehäuse (2), einer darin axial festgelegten Klemmhülse (4), einem in dem als Zylinder ausgebildeten Gehäuse beweglichen Spannkolben (5) sowie mit einer den Kolben (5) in Richtung auf die Klemmhülse (4) in den Verriegelungszustand vorspannenden Federeinrichtung, dadurch gekennzeichnet, daß als Federeinrichtung mindestens eine im Falle eines Bruches die Haltekraft und einen Kraftweg der Federeinrichtung bewahrende Schraubentellerfeder (6, 6', 6", 19) vorgesehen ist.
- Klemmvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die mindestens eine Schraubentellerfeder (19) koaxial zu der zu klemmenden Stange (3) angeordnet ist.
- Klemmvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zur Verteilung einer auf die Federeinrichtung einwirkenden Vorspannkraft mehrere Schraubentellerfedern (6, 6', 6") achsparallel um den Umfang der Stange (3) angeordnet sind.
- Klemmvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß in dem Spannkolben (5) und/oder in einem Deckel (20) der Klemmvorrichtung Eindrehungen (22) zur Aufnahme eines oder beider der Enden der mindestens einen Schraubentellerfeder (6") vorgesehen sind.
- Klemmvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die mindestens eine Schraubentellerfeder aus zwei gleichen ineinandergeschraubten Schraubendruckfedern mit tellerfederähnlichem Querschnitt aus Bandstahl gefertigt ist.
- Klemmvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die mindestens eine Schraubentellerfeder durch einen Bolzen geführt ist, der lediglich im Bereich der Enden der Feder die Schraubentellerfeder an deren Innendurchmesser führt.
- Klemmvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß eine Führung der mindestens einen Schraubentellerfeder an ihrem Außendurchmesser lediglich im Bereich der Enden der Feder erfolgt.
- Klemmvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die mindestens eine Schraubentellerfeder direkt auf die Klemmhülse einwirkt, deren Außenkonus einen zugeordneten Innenkonus des Gehäuses beaufschlägt und deren Innendurchmesser sich aufgrund der axialen Verschiebung im Verriegelungszustand verkleinert, woraus ein Festklemmen der bewegten Stange erfolgt.
- Klemmvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß in einer die Federeinrichtung aufnehmenden Bohrung des Gehäuses Ausnehmungen (21) mit kreisabschnittsförmigem Grundriß vorgesehen sind.
- Stelleinrichtung, insbesondere Arbeitszylinder, mit einer Kolbenstange, gekennzeichnet durch eine Klemmvorrichtung nach einem der Ansprüche 1 bis 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10158844 | 2001-11-27 | ||
| DE10158844A DE10158844A1 (de) | 2001-11-27 | 2001-11-27 | Klemmvorrichtung und Stelleinrichtung |
| PCT/EP2002/013304 WO2003046389A1 (de) | 2001-11-27 | 2002-11-26 | Klemmvorrichtung und stelleinrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1448900A1 EP1448900A1 (de) | 2004-08-25 |
| EP1448900B1 true EP1448900B1 (de) | 2005-03-09 |
Family
ID=7707562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02787823A Expired - Lifetime EP1448900B1 (de) | 2001-11-27 | 2002-11-26 | Klemmvorrichtung und stelleinrichtung |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8028615B2 (de) |
| EP (1) | EP1448900B1 (de) |
| CN (1) | CN100366924C (de) |
| AT (1) | ATE290653T1 (de) |
| AU (1) | AU2002352149A1 (de) |
| DE (2) | DE10158844A1 (de) |
| ES (1) | ES2237705T3 (de) |
| PT (1) | PT1448900E (de) |
| UA (1) | UA74099C2 (de) |
| WO (1) | WO2003046389A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008057053A1 (de) | 2008-08-29 | 2010-04-29 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
| DE102008057052A1 (de) | 2008-08-29 | 2010-07-15 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009041907B4 (de) * | 2009-09-20 | 2015-01-22 | Günther Zimmer | Brems- und/oder Klemmvorrichtung mit formsteifem Zentralkörper |
| DE202012101018U1 (de) * | 2012-03-22 | 2013-06-25 | Franz Fuchs | Kompakttellerfeder |
| FR3049963B1 (fr) | 2016-04-12 | 2020-05-22 | Matisa Materiel Industriel S.A. | Systeme d'arrimage d'un appareil de voie ferree equipe d'un mecanisme d'arrimage, vehicule et procede de transport associes |
| CN106701534B (zh) * | 2017-01-01 | 2019-04-05 | 重庆科技学院 | 一种细胞划痕实验盖的使用方法 |
| CN106520525B (zh) * | 2017-01-01 | 2019-03-05 | 重庆科技学院 | 一种细胞划痕实验盖 |
| DE102018216736A1 (de) * | 2018-09-28 | 2020-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Verdrehsicherung |
| DE202019100248U1 (de) * | 2019-01-17 | 2020-04-20 | Berg & Co. Gmbh | Klemmvorrichtung |
| US12097693B2 (en) * | 2019-05-23 | 2024-09-24 | Bobst Bielefeld Gmbh | Clamping shaft, printing cylinder unit and method for operating a clamping shaft |
| CN110388349B (zh) * | 2019-06-28 | 2020-06-09 | 威海立新液压气动机械有限公司 | 一种操作稳定性高的液压缸体 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1135586A (en) * | 1914-09-02 | 1915-04-13 | George Gunby Jordan | Tool for compressing tappet-valve springs. |
| DE1804857B2 (de) * | 1968-10-24 | 1971-11-25 | Hänchen, Siegfried, 7304 Ruit | Vorrichtung zur klemmung einer axial verschiebbaren kolben stange |
| US3575087A (en) | 1968-11-18 | 1971-04-13 | Lourdes Ind Inc | Locking cylinder |
| US3995534A (en) * | 1973-06-30 | 1976-12-07 | Adolf Rastetter | Safety arrester for arresting a hydraulically operated lifting ram of a hydraulic elevator |
| DE3118449A1 (de) * | 1981-05-09 | 1982-12-02 | Sitema Gesellschaft für Sicherheitstechnik und Maschinenbau mbH, 7500 Karlsruhe | "klemmvorrichtung" |
| DE3523676A1 (de) | 1985-07-03 | 1987-01-08 | Roehrs Werner Dr Kg | Seilklemmenversetzgeraet |
| DE3707046A1 (de) | 1987-03-05 | 1988-09-15 | Haenchen Kg Herbert | Klemmvorrichtung fuer stangen |
| DE4126897A1 (de) * | 1991-08-14 | 1993-02-18 | Rexroth Mannesmann Gmbh | Hydraulisches klemmsystem |
| ATA183292A (de) * | 1992-09-15 | 1996-06-15 | Hoerbiger Ventilwerke Ag | Hydraulikzylinder |
| US5540135A (en) * | 1994-12-27 | 1996-07-30 | Advanced Machine & Engineering Co. | Device for clamping an axially movable rod |
| JPH10141324A (ja) * | 1996-11-06 | 1998-05-26 | Kosmek Ltd | 旋回式クランプ装置 |
| US5791230A (en) * | 1997-04-18 | 1998-08-11 | Advanced Machine & Engineering Co. | Rod clamping device for a linear fluid actuator |
| JP3856934B2 (ja) * | 1998-01-27 | 2006-12-13 | Smc株式会社 | ロック機構付き流体圧シリンダ |
| US6152268A (en) * | 1998-12-21 | 2000-11-28 | Advanced Machine & Engineering Co. | Rod clamp apparatus |
-
2001
- 2001-11-27 DE DE10158844A patent/DE10158844A1/de not_active Withdrawn
-
2002
- 2002-11-26 EP EP02787823A patent/EP1448900B1/de not_active Expired - Lifetime
- 2002-11-26 PT PT02787823T patent/PT1448900E/pt unknown
- 2002-11-26 DE DE50202445T patent/DE50202445D1/de not_active Expired - Lifetime
- 2002-11-26 US US10/496,813 patent/US8028615B2/en not_active Expired - Fee Related
- 2002-11-26 WO PCT/EP2002/013304 patent/WO2003046389A1/de not_active Ceased
- 2002-11-26 AT AT02787823T patent/ATE290653T1/de active
- 2002-11-26 UA UA20040503897A patent/UA74099C2/uk unknown
- 2002-11-26 CN CNB028235762A patent/CN100366924C/zh not_active Expired - Fee Related
- 2002-11-26 AU AU2002352149A patent/AU2002352149A1/en not_active Abandoned
- 2002-11-26 ES ES02787823T patent/ES2237705T3/es not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008057053A1 (de) | 2008-08-29 | 2010-04-29 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
| DE102008057052A1 (de) | 2008-08-29 | 2010-07-15 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
| DE102008057053B4 (de) * | 2008-08-29 | 2011-03-10 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
| DE102008057052B4 (de) * | 2008-08-29 | 2011-06-16 | Benteler Automobiltechnik Gmbh | Vorrichtung zur aktiven Spurlenkung von Fahrzeugrädern |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1596344A (zh) | 2005-03-16 |
| PT1448900E (pt) | 2005-07-29 |
| ES2237705T3 (es) | 2005-08-01 |
| DE10158844A1 (de) | 2003-06-12 |
| AU2002352149A1 (en) | 2003-06-10 |
| DE50202445D1 (de) | 2005-04-14 |
| EP1448900A1 (de) | 2004-08-25 |
| US8028615B2 (en) | 2011-10-04 |
| UA74099C2 (en) | 2005-10-17 |
| CN100366924C (zh) | 2008-02-06 |
| WO2003046389A1 (de) | 2003-06-05 |
| US20110107907A1 (en) | 2011-05-12 |
| ATE290653T1 (de) | 2005-03-15 |
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