EP1864024B1 - Verriegelbarer arbeitszylinder - Google Patents

Verriegelbarer arbeitszylinder Download PDF

Info

Publication number: EP1864024B1
Authority: EP; European Patent Office
Prior art keywords: working cylinder; pressure; cylinder according; pressure space; spindle
Prior art date: 2005-03-31
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.): Active

Application number

EP06723716A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP1864024A1 (de

Inventor

Adolf Tretsch

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

TRETSCH, ADOLF

Original Assignee

Aros Hydraulik GmbH

Priority date (The priority date 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 date listed.)

2005-03-31

Filing date

2006-03-24

Publication date

2008-10-22

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36636490&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1864024(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2006-03-24 Application filed by Aros Hydraulik GmbH filed Critical Aros Hydraulik GmbH

2006-03-24 Priority to PL06723716T priority Critical patent/PL1864024T3/pl

2007-12-12 Publication of EP1864024A1 publication Critical patent/EP1864024A1/de

2008-10-22 Application granted granted Critical

2008-10-22 Publication of EP1864024B1 publication Critical patent/EP1864024B1/de

Status Active legal-status Critical Current

2026-03-24 Anticipated expiration legal-status Critical

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
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

Definitions

the invention relates to a lockable power cylinder having a housing and a piston movable therein in a main pressure chamber, from which a piston rod tube leads from the main pressure chamber, wherein in the piston or the piston rod tube rotates a spindle, which is associated with a means for stopping the rotational movement, wherein the spindle or one of these mounted rotary sleeve has a radially disposed space in which a radially feasible locking pin engages.
Such cylinders are known in a variety of forms and designs and on the market.
a fluid operated cylinder shown in which a rotatable spindle engages a piston rod tube. If the corresponding piston, the Assigned to the piston rod tube, the spindle also rotates, so that the piston rod tube can move axially.
corresponding brake or locking units are provided.
a braking surface which presses against a brake cone, so that thereby the spindle rotation is decelerated.
Such a braking device is not suitable for braking larger loads acting on the working cylinder. Furthermore, as a result, the spindle rotation can not be stopped abruptly.
a locking unit which forms a functionally reliable, fine-step and reliably lockable component arrangement.
a rotational movement of the threaded spindle by means of an axially displaceable connecting member and a rotationally fixed counter-member braking locking unit is provided, wherein the held by a compression spring in the connecting position connecting member can be unlocked by a displaceable against the spring action thrust body.
the connecting member is formed as a with the compression spring on a Tragansatzteil the threaded spindle axially displaceable locking piston, at its front end of the cylinder bottom directed end face an annular extending and engageable on a bottom-side counter toothing tooth profile is provided.
the locking piston which can be displaced on the carrying attachment part is rotatably matched to the pushing body by means of a central supporting bearing.
This lock is problematic because on the one hand a front-side locking can be worn down over time.
the cohesion of the frontal toothing is dependent on the pressure medium, which, for example, when leaks occur, can easily fail.
a working cylinder of the above type is from the EP 1 106 841 A2 known.
the spindle has radially arranged spaces into which engages a radially feasible locking pin.
Object of the present invention is to provide a working cylinder of the type mentioned above, in which when you release the pressure in the main pressure chamber, there is a very rapid and secure locking of the piston or the piston rod tube or the spindle.
a pressure medium can be introduced and thus the space is designed as a pressure chamber.
This radially feasible locking bolt ensures that, as long as it enters the pressure chamber, a secure locking of the spindle takes place. As a result, the piston and the piston rod tube is set. Another rotational movement is only possible when the locking pin is removed from its rest position.
spindle also includes a mounted on the spindle rotary sleeve, which serves to better mounting and storage of the spindle.
the pressure chamber could be associated with the locking bolt, a force storage device, such as a coil spring. If the pressure in the pressure chamber is removed in this case, the locking pin can retract under the pressure of the compression spring in this pressure chamber and lock the spindle.
a cup-shaped locking pressure chamber is set up around the spindle end, from which then the pressure chamber, which receives the locking pin, branches off. From this cup-shaped locking pressure chamber enters a pressure medium in the pressure chamber, since there the locking pin is performed with play. If the bottom of the room is funnel-shaped, so the pressure medium can pass in front of the locking pin and push it out of the pressure chamber. The funnel-shaped training does not have to be.
the latter arrangement is desirable when a plurality of pressure chambers radially distributed around the spindle or, the spindle end are provided.
This radial distribution causes the locking pin to have a variety of desired capabilities to retract into the next compression space.
the unwanted rotation of the spindle which follows, for example, a leak in the system is reduced to a minimum.
annular collar On the spindle or the above-mentioned rotating sleeve, an annular collar should preferably be provided, which is supported against at least one needle bearing.
This needle bearing absorbs the forces acting axially, preferably a Spindelend Formation still maintains a slight distance from a blind hole bottom of a blind hole around them.
the entire pressure medium system is coupled together. This means above all that the pressure medium supply is coupled to the movement of the actual piston with the pressure medium supply to the above-mentioned locking pressure chamber for the locking pin.
the pressure medium supply to the locking pressure chamber and the main pressure chamber is controlled, however. It is important that the locking pressure chamber is separated from the main pressure chamber by a corresponding seal.
the pressure medium supply to the main pressure chamber is designed so that only the pressure medium supply to the locking pressure chamber reaches a predetermined value, for example from 15 to 25 bar, which is sufficient that the locking pin is pushed out of the pressure chamber before the piston is pressurized in the main pressure chamber , This means that the spindle is first released before it is moved axially in the working cylinder.
the locking pin takes over a second mechanical backup, while the first backup is done hydraulically by at least one load-holding valve.
This load-holding valve is arranged in the pressure medium system so that it can hold a force acting on the piston rod or the piston force as soon as the pressure medium supply, for example, the hydraulic unit, is turned off. Only when this first backup stops working, for example, in the case of a faulty load-holding valve or leakage in the system, the second, mechanical fuse enters into force, since in this case the spindle rotates and the locking pin under the pressure of him supporting coil spring in the pressure chamber retracts.
the present working cylinder is intended primarily for heavy load.
the scope is extremely diverse. He goes from, for example, double-deck car transporters, in which individual floors are supported against each other, up to hydraulic presses or devices for the position of formwork in construction. These are only a few application examples, the invention is of course not limited thereto.
An inventive working cylinder P has according to FIG. 1 a housing 1, on which a distribution block 2 is placed for print media. On the right side of the housing 1 is a tab 3 with an eye 4 for mounting in a hook not shown in detail od. The like. Formed. The eye 4 is seated in a rotary ring 5, which forms an annular space 6 towards the tab 3, which can be filled with a lubricant via a lubricant 7.
To the tab 3 includes a lower housing part 8, to which a middle part 9 is pushed. This in turn goes into a cylinder tube 10, in the opening 11, a guide sleeve 12 is inserted.
the guide sleeve 12 encloses a piston rod tube 13, which is screwed into a piston 14.
the piston 14 is guided in the interior of the cylinder tube 10 and is supported against this cylinder tube 10 by means of a sealing ring 15.
a threaded piece 16 is screwed, which in one piece in a further tab 17 with a Connection eye 18 for example, a load or snap hook transitions.
the piston rod tube 13 is at least for the most part provided with an internal thread not shown in detail, in which a spindle 20 rotates with a corresponding external thread.
This spindle 20 also passes through the piston 14 and sits with a spindle root 21 in a rotary sleeve 22, which is received by the middle part 9 and the lower housing part 8.
the lower housing part 8 forms a blind hole 23, in which the rotary sleeve 22 is received at a distance.
the rotary sleeve 22 holds with an end face 24 of a blind hole bottom 25 a slight distance.
the rotary sleeve 22 engages with an annular collar 26 in an annular space 27, which is formed between the middle part 9 and the lower housing part 8.
annular space 27 the annular collar 26 is supported on both sides in each case via a needle bearing 29 or 30 against corresponding shoulder or end surfaces formed by the housing parts.
At least two pressure chambers 31.1 and 31.2 are formed, which are each provided with a funnel-shaped bottom 32.
a locking pin 33 In the pressure chamber 31.1 sits a locking pin 33, which is acted upon by a coil spring 34 on the other hand.
pressure medium is supplied through the distributor block 2 to the locking pressure chamber 38. Since the locking pin 33 is guided in the pressure chamber 31.1 with play, this pressure medium passes in front of the locking pin 33 in the hopper bottom 23 and pushes the locking pin 33 against the force of the coil spring 34 from the pressure chamber 31.1. Thereby, the rotary sleeve 22 can rotate freely in the blind hole 23, wherein the rotation is supported by the needle bearings 29 and 30.
pressure medium also passes behind the piston 14. This is moved to the left, so a Pressure chamber 36 is reduced in front of the piston 14. The volume of pressure medium from this pressure chamber 36 passes through a return line 37 back to, for example, a pressure medium reservoir.
a pitch of the internal thread, not shown, in the piston rod tube 13 and the external thread, not shown, on the spindle 20 is selected such that upon displacement of the piston rod tube 13 under the pressure of the piston 14 to the left, the spindle 20 is set in rotary motion.
the hydraulic system is controlled so that there is always in the locking pressure chamber 38 by 15 to 25 bar higher pressure, as in the main pressure chamber 36. This ensures that the locking pin 33 remains in its pushed-back position ,
the hydraulic unit promotes no further pressure medium, neither to the main pressure chamber 36 nor to the locking pressure chamber 38. This means that both pressure chambers are depressurized. From the pressure chamber behind the piston 14, however, no pressure medium can flow back, as this by a Load holding valve 35 is prevented.
This load-holding valve is the first safety device of the lockable working cylinder according to the invention. The second fuse is taken over by the locking pin 33. This is because the locking pressure chamber 38 is depressurized, the circumference of the rotary sleeve 22 at.

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Actuator (AREA)
Fluid-Damping Devices (AREA)
Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Vehicle Body Suspensions (AREA)

EP06723716A 2005-03-31 2006-03-24 Verriegelbarer arbeitszylinder Active EP1864024B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL06723716T PL1864024T3 (pl)	2005-03-31	2006-03-24	Ryglowany cylinder roboczy

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102005015059A DE102005015059A1 (de)	2005-03-31	2005-03-31	Verriegelbarer Arbeitszylinder
PCT/EP2006/002737 WO2006103031A1 (de)	2005-03-31	2006-03-24	Verriegelbarer arbeitszylinder

Publications (2)

Publication Number	Publication Date
EP1864024A1 EP1864024A1 (de)	2007-12-12
EP1864024B1 true EP1864024B1 (de)	2008-10-22

Family

ID=36636490

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06723716A Active EP1864024B1 (de)	2005-03-31	2006-03-24	Verriegelbarer arbeitszylinder

Country Status (10)

Country	Link
US (1)	US20080190282A1 (ja)
EP (1)	EP1864024B1 (ja)
JP (1)	JP2008534874A (ja)
CN (1)	CN101151467A (ja)
AT (1)	ATE412121T1 (ja)
DE (2)	DE102005015059A1 (ja)
ES (1)	ES2316057T3 (ja)
PL (1)	PL1864024T3 (ja)
PT (1)	PT1864024E (ja)
WO (1)	WO2006103031A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102016119251A1 (de)	2016-10-10	2018-04-12	Fbr Facondrehteile Gmbh	Hydromechanischer Verriegelungszylinder und hydraulisches Steuersystem zu dessen Betätigung
EP4209685A1 (de)	2022-01-07	2023-07-12	HYDAC Systems & Services GmbH	Verriegelungsvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102006046248A1 (de) *	2006-09-28	2008-04-10	Aros Hydraulik Gmbh	Verriegelbarer Arbeitszylinder
CN106194885A (zh) *	2016-08-31	2016-12-07	徐州徐工挖掘机械有限公司	一种多作用力多速油缸

Family Cites Families (12)

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US2804054A (en) *	1954-09-13	1957-08-27	Gen Motors Corp	Actuator and locking means therefor
US2815005A (en) *	1955-12-12	1957-12-03	Gen Motors Corp	Fluid pressure actuator with stroke end locking means
US3104593A (en) *	1960-12-28	1963-09-24	Regent Jack Mfg Co Inc	Fluid actuators
JPS545179A (en) *	1977-06-15	1979-01-16	Toyo Kohan Co Ltd	Air cylinder providing with brake
FR2534985A3 (fr) *	1982-10-23	1984-04-27	Messerschmitt Boelkow Blohm	Verin a blocage perfectionne
JPS62174104A (ja) *	1986-01-29	1987-07-30	旭化成株式会社	複合版の製造方法
DE4141460C2 (de)	1991-12-12	1993-12-02	Mannesmann Ag	Druckmittelbetriebener Arbeitszylinder
DE29720838U1 (de)	1997-11-25	1998-02-26	Andexser, Lucie, 32584 Löhne	Arbeitszylinder mit integrierter Hubbremse
AT4094U1 (de)	1999-12-07	2001-01-25	Weber Hydraulik Gmbh	Linearverstellantrieb
DE20216197U1 (de)	2002-10-22	2004-03-04	Bümach Engineering International B.V.	Hydraulischer Arbeitszylinder
DE20216297U1 (de) *	2002-10-23	2003-01-09	Rheinzink GmbH & Co. KG, 45711 Datteln	Heliothermischer Flachkollektor-Modul in Sandwichbauweise
WO2005017366A1 (de) *	2003-08-19	2005-02-24	Supraventures Ag	Fluidzylinder

2005
- 2005-03-31 DE DE102005015059A patent/DE102005015059A1/de not_active Withdrawn
2006
- 2006-03-24 WO PCT/EP2006/002737 patent/WO2006103031A1/de not_active Application Discontinuation
- 2006-03-24 EP EP06723716A patent/EP1864024B1/de active Active
- 2006-03-24 US US11/910,275 patent/US20080190282A1/en not_active Abandoned
- 2006-03-24 ES ES06723716T patent/ES2316057T3/es active Active
- 2006-03-24 PL PL06723716T patent/PL1864024T3/pl unknown
- 2006-03-24 DE DE502006001896T patent/DE502006001896D1/de active Active
- 2006-03-24 AT AT06723716T patent/ATE412121T1/de active
- 2006-03-24 PT PT06723716T patent/PT1864024E/pt unknown
- 2006-03-24 JP JP2008503412A patent/JP2008534874A/ja active Pending
- 2006-03-24 CN CNA2006800098662A patent/CN101151467A/zh active Pending

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102016119251A1 (de)	2016-10-10	2018-04-12	Fbr Facondrehteile Gmbh	Hydromechanischer Verriegelungszylinder und hydraulisches Steuersystem zu dessen Betätigung
WO2018069128A1 (de)	2016-10-10	2018-04-19	Fbr Facondrehteile Gmbh	Hydromechanischer arretierungszylinder und hydraulisches steuersystem zu dessen betätigung
EP4209685A1 (de)	2022-01-07	2023-07-12	HYDAC Systems & Services GmbH	Verriegelungsvorrichtung
DE102022000062A1 (de)	2022-01-07	2023-07-13	Hydac Systems & Services Gmbh	Verriegelungsvorrichtung

Also Published As

Publication number	Publication date
DE102005015059A1 (de)	2006-10-05
PL1864024T3 (pl)	2009-04-30
CN101151467A (zh)	2008-03-26
ATE412121T1 (de)	2008-11-15
US20080190282A1 (en)	2008-08-14
JP2008534874A (ja)	2008-08-28
ES2316057T3 (es)	2009-04-01
DE502006001896D1 (de)	2008-12-04
EP1864024A1 (de)	2007-12-12
PT1864024E (pt)	2009-01-02
WO2006103031A1 (de)	2006-10-05

Publication	Publication Date	Title
DE102005000885B4 (de)	2014-07-03	Stellglied
EP1864024B1 (de)	2008-10-22	Verriegelbarer arbeitszylinder
EP2570680B1 (de)	2013-09-18	Verfahren zur Entriegelung einer Kolben-Zylindereinheit
DE1101964B (de)	1961-03-09	Hydraulischer Kolbenantrieb mit Teleskopkolben
DE102007036274A1 (de)	2009-02-05	Hubzylinder und Hubvorrichtung
DE4012481C2 (de)	2002-04-25	Ventilvorrichtung mit einem hydraulisch entsperrbaren Rückschlagventil für hydraulische Systeme des Bergbaus, wie vor allem für hydraulische Ausbausysteme
EP0505349B2 (de)	1998-05-27	Hydraulische Zylinder/Kolben-Anordnung
DE102006034864B4 (de)	2009-07-30	Steuerungssystem für ein hydraulisches System
DE2328435B2 (de)	1978-10-19	Lösevorrichtung für die Federspeicherbremse eines kombinierten Betriebsbrems- und Federspeicherzylinders
EP3344881B1 (de)	2019-05-22	Hydromechanischer arretierungszylinder und hydraulisches steuersystem zu dessen betätigung
DE102007007054A1 (de)	2008-01-31	Steuerungssystem für ein hydraulisches Element
EP1170512B1 (de)	2004-01-21	Druckmittelbetriebener Arbeitszylinder mit mechanischer Wegsperrung im drucklosen Zustand
DE10356598B3 (de)	2005-06-02	Verriegelungszylinder
EP2044336B1 (de)	2016-04-06	Steuerungssystem für ein hydraulisches element
DE3718246C1 (de)	1988-07-07	Hubbegrenzungsvorrichtung fuer den Druckkolben zur Reibungskupplung in einer Kupplungsspindelpresse
DE2245796B2 (de)	1975-03-06	Umlaufender, doppeltwirkender Druckmittelzylinder
DE10356596B3 (de)	2005-06-02	Verriegelungszylinder
DE102016115407B4 (de)	2018-03-01	Stellantrieb für ein Schnellschlussventil
DE10356597B3 (de)	2005-06-02	Verriegelungszylinder
DE3611710C1 (en)	1987-07-30	Reversing device
DE3318165C2 (de)	1986-06-05	Leitschaufel-Verstellvorrichtung für die Vordrallregelung einer Strömungsarbeitsmaschine
DE19510586A1 (de)	1996-09-26	Rohrbruchsicherungsventil
DE102005052692B3 (de)	2007-05-31	Elektrohydraulische Überwachungseinrichtung
EP0462392B1 (de)	1994-09-21	Hydraulisches Ventil
DE1805636C (de)	1972-06-15	Steuerventilanordnung für den mechanisierten Stahlausbau unter Tage

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