EP1628019B1 - Vérin rotatif avec une soupape de limitation de pression - Google Patents

Vérin rotatif avec une soupape de limitation de pression Download PDF

Info

Publication number
EP1628019B1
EP1628019B1 EP20050017252 EP05017252A EP1628019B1 EP 1628019 B1 EP1628019 B1 EP 1628019B1 EP 20050017252 EP20050017252 EP 20050017252 EP 05017252 A EP05017252 A EP 05017252A EP 1628019 B1 EP1628019 B1 EP 1628019B1
Authority
EP
European Patent Office
Prior art keywords
working chambers
pressure medium
cylinder
motor shaft
motor
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.)
Not-in-force
Application number
EP20050017252
Other languages
German (de)
English (en)
Other versions
EP1628019A2 (fr
EP1628019A3 (fr
Inventor
Rainer Beilner
Matthias Reuss
Stephan Schiffler
Alfred Wirth
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP1628019A2 publication Critical patent/EP1628019A2/fr
Publication of EP1628019A3 publication Critical patent/EP1628019A3/fr
Application granted granted Critical
Publication of EP1628019B1 publication Critical patent/EP1628019B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
    • 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
    • F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston

Definitions

  • the invention relates to a swivel motor according to the preamble of patent claim 1.
  • the DE 196 13 769 C2 describes a dual-circuit pressure medium system for active chassis control using a slew motor.
  • the swing motor is for example from the DE 44 42 223 C2 known and consists of a cylinder and axially extending ribs. Inside the cylinder, a motor shaft with wings is rotatably mounted parallel to the ribs. End cover closes the pivot motor, so that the motor shaft forms working chambers together with the cylinder, each adjacent working chambers is connected to a respective other of the existing pressure medium connections.
  • a composite system within the swing motor serves to supply pressure medium between the respective working chambers.
  • a pressure relief valve which is arranged functionally between the pressure supply and a switching valve.
  • a further pressure medium line within the vehicle is necessary, which can represent a potential leakage point.
  • US 2,556,648 a swing motor having an adjustable pressure relief valve in a wing of a motor shaft, which is closed in normal operation.
  • Object of the present invention is to further develop such a pivot motor, which can absorb the said peak pressures permanently. According to the invention, the object is solved by the features of patent claim 1.
  • the great advantage is that at the same time all working chambers are connected to each other via a single pressure relief valve.
  • a constructive possibility is that the pressure medium composite system is formed by at least two transverse bores within the motor shaft and between these transverse bores, the at least one flow connection is executed.
  • a flow connection can be carried out particularly advantageously in the central axis of the motor shaft.
  • the Fig. 1 shows in conjunction with Fig. 2 a swivel motor 1 in longitudinal section whose basic structure is also assumed in the following figures.
  • the swivel motor 1 comprises a cylinder 3, on whose inner diameter axially extending ribs 5 are executed. Inside the cylinder 3, a motor shaft 7 is rotatably mounted. On the motor shaft wings 9 are arranged, which extend parallel to the ribs 5. End is the cylinder 3 of lids 11; 13 closed.
  • the motor shaft with its wings and the cylinder with its ribs together with the covers working chambers 15; 17, which are separated by disc seals 19 in the wings and ribs.
  • a pressure relief valve 36 is used, which can connect a working chamber 15 with the pressure medium composite system, transverse bore 31, an adjacent working chamber 17.
  • the advantage of this embodiment is that the flow connection 37 utilizes the pressure medium composite system for the function of the pressure relief valve. It makes sense each of the work spaces 15; 17 with the corresponding transverse bores 29; 31 connect via a pressure relief valve 36.
  • the Fig. 4 shows a solution in which the pressure relief valve 36 is arranged with its flow connection 37 between the transverse bores 29, 31.
  • a stepped blind hole opening 55 is executed, the end of which forms the flow connection 37.
  • the transverse bores 29; 31 intersect in the projection in the central axis of the motor shaft, so that there the flow connection 37 is made meaningful.
  • a flow connection at this point of the slewing motor is only change, which exerts no influence on the mechanical strength of the motor shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (2)

  1. Vérin rotatif, comprenant un cylindre (3) avec des nervures (5) s'étendant axialement au niveau du diamètre intérieur, le cylindre étant fermé aux extrémités par deux couvercles (11, 13), un arbre de moteur (7) avec des ailettes (9), qui possèdent la même étendue axiale que les nervures (5) du cylindre (3) ; les ailettes (9), l'arbre de moteur (7) et les nervures (5) du cylindre (3) formant, conjointement avec le cylindre (3), les couvercles (11, 13) et l'arbre de moteur (7), des chambres de travail individuelles (15, 17), un premier et un deuxième raccord de fluide sous pression (33, 35) pour deux chambres de travail (15, 17) respectivement séparées par une nervure, un système de liaison (29, 31) entre les chambres de travail, qui relie au moins par paires des chambres de travail, l'agencement des chambres de travail reliées étant réalisé de telle sorte que les chambres de travail (15) appartenant au premier raccord de fluide sous pression (33) alternent avec celles qui sont reliées au deuxième raccord de fluide sous pression (35),
    caractérisé en ce
    qu'entre au moins deux chambres de travail (15 ; 17) qui sont reliées à des raccords de fluide sous pression (33 ; 35) différents, est disposée au moins une soupape de limitation de pression (36) dans une liaison d'écoulement (37) à l'intérieur du vérin rotatif (1), la soupape de limitation de pression (36) commandant la liaison d'écoulement (37) entre les systèmes de liaison de fluide sous pression (29 ; 31 ; 57) des chambres de travail (15 ; 17) .
  2. Vérin rotatif selon la revendication 1,
    caractérisé en ce que
    le système de liaison de fluide sous pression (29 ; 31) est formé par au moins deux alésages transversaux à l'intérieur de l'arbre de moteur (7) et l'au moins une liaison d'écoulement (37) est réalisée entre ces alésages transversaux (29 ; 31).
EP20050017252 2004-08-16 2005-08-09 Vérin rotatif avec une soupape de limitation de pression Not-in-force EP1628019B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410039767 DE102004039767A1 (de) 2004-08-16 2004-08-16 Schwenkmotor mit einem Druckbegrenzungsventil

Publications (3)

Publication Number Publication Date
EP1628019A2 EP1628019A2 (fr) 2006-02-22
EP1628019A3 EP1628019A3 (fr) 2011-10-19
EP1628019B1 true EP1628019B1 (fr) 2013-06-12

Family

ID=35355093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050017252 Not-in-force EP1628019B1 (fr) 2004-08-16 2005-08-09 Vérin rotatif avec une soupape de limitation de pression

Country Status (2)

Country Link
EP (1) EP1628019B1 (fr)
DE (1) DE102004039767A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005839A1 (de) 2007-02-01 2008-08-07 Zf Friedrichshafen Ag Druckmittel betätigtes Aggregat
DE102007009592A1 (de) 2007-02-26 2008-08-28 Zf Friedrichshafen Ag Aggregat, insbesondere Schwenkmotor
DE102007041610B4 (de) 2007-09-03 2009-07-23 Zf Friedrichshafen Ag Aggregat, insbesondere Schwenkmotor
DE112009000245A5 (de) * 2008-03-01 2011-01-20 Ixetic Hückeswagen Gmbh Schwenkmotorgehäuse
DE102008030361A1 (de) 2008-06-26 2009-12-31 Kinshofer Gmbh Wankstabilisatorsystem sowie Torsionsmotor zur Verstellung eines aktiven Wankstabilisators
DE102011078936A1 (de) 2011-07-11 2013-01-17 Zf Friedrichshafen Ag Schwenkmotor
DE102013000703A1 (de) 2013-01-17 2014-07-17 Zf Friedrichshafen Ag Schwenkmotor
EP3039299B1 (fr) * 2013-08-29 2021-08-11 Aventics Corporation Actionneur électro-hydraulique
US11047506B2 (en) 2013-08-29 2021-06-29 Aventics Corporation Valve assembly and method of cooling
US10072773B2 (en) 2013-08-29 2018-09-11 Aventics Corporation Valve assembly and method of cooling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556648A (en) 1948-05-17 1951-06-12 Gorsuch Harold Impeller vane for hydraulic motors
DE7012963U (de) 1970-04-09 1970-07-30 J P Sauer & Sohn Maschb Gmbh Vorrichtung zum vermeiden von unzulaessigen druckdifferenzen in druckmittelzylindern.
GB2145798B (en) * 1983-09-01 1987-06-17 Fichtel & Sachs Ag Volume compensation in hydraulic rotary-vane dampers
DE4442223C2 (de) 1994-11-26 1996-09-12 Fichtel & Sachs Ag Schwenkmotor für einen geteilten Stabilisator
DE19613769C2 (de) 1995-04-08 1997-08-21 Fichtel & Sachs Ag Zweikreishydrauliksystem für eine aktive Fahrwerksregelung

Also Published As

Publication number Publication date
DE102004039767A1 (de) 2006-03-09
EP1628019A2 (fr) 2006-02-22
EP1628019A3 (fr) 2011-10-19

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