EP1117936B1 - Manually operated control device, especially for hydraulically actuating hydraulic valves - Google Patents
Manually operated control device, especially for hydraulically actuating hydraulic valves Download PDFInfo
- Publication number
- EP1117936B1 EP1117936B1 EP99946163A EP99946163A EP1117936B1 EP 1117936 B1 EP1117936 B1 EP 1117936B1 EP 99946163 A EP99946163 A EP 99946163A EP 99946163 A EP99946163 A EP 99946163A EP 1117936 B1 EP1117936 B1 EP 1117936B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control signal
- lever
- control
- actuated
- actuating element
- 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
- 230000007935 neutral effect Effects 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007257 malfunction Effects 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
-
- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87048—With preselecting means for plural valve actuator
-
- 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
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87056—With selective motion for plural valve actuator
- Y10T137/87072—Rotation about either of two pivotal axes
Definitions
- the invention relates to a hand-operated control device, which in particular is used for hydraulic actuation of hydraulic valves and that has the features from the preamble of claim 1.
- Such a manually operated control device is e.g. known from DE 27 51 946 C2.
- the control unit has a control lever that over two shafts or stub shafts, whose axes span an axis plane and are at a pivot point cut, gimbal mounted on a device housing and thus from one Neutratposition is pivotable on all sides about the pivot point.
- a control signal generator are four directly controlled pressure reducing valves in the known device available, which are at an angular distance of 90 degrees perpendicular to the Axle plane standing and through the pivot point lever axis arranged are.
- Every pressure reducing valve has a tappet in the device housing is guided parallel to the lever axis, protrudes from the device housing and from a plate-like actuator firmly connected to the control lever against the force of a return spring and a control spring of the respective Pressure reducing valve can be depressed.
- Those attacking the pestle Return springs ensure that the control lever is always in a neutral position assumes if it is not operated from the outside and does not engage is provided for him in a pivoted state.
- the control lever is pivoted in one plane. those through the axes of two diametrically opposed Pressure reducing valves is determined, one of four pressure reducing valves, that is, a control signal transmitter is actuated.
- a control signal transmitter By swiveling the control lever on another level it is possible to close two pressure reducing valves at the same time actuate, the degree of actuation of a pressure reducing valve in comparison to measure the level of actuation of the other pressure reducing valve depends on the swivel plane.
- the invention has for its object a hand-operated control device with the Develop features from the preamble of claim 1 so that with him a variety of hydraulic without excessive increase in effort Valves can be operated safely.
- This task is performed on the features of a manually operated control unit the preamble of claim 1 according to the invention solved in that this Control unit with the features from the characterizing part of claim 1.
- this Control unit with the features from the characterizing part of claim 1.
- the control lever is together with the actuator around the lever axis from a first rotational position to a second Rotational position and vice versa rotatable, the first in the first rotational position Control signal generator can be acted upon by the actuator.
- a recess is in the actuator in the first rotational position of the control lever the further control signal generator, so that it is not in the first rotational position can be operated.
- By turning the control lever together with the actuator an area of the actuator reaches the second rotational position via the further control signal generator, so that its actuation is possible.
- the invention can preferably be applied to a manually operated control device, that around the lever axis at a respective angular distance of 90 Degree four has first control signal transmitter.
- the control of another directional valve axis in two directions is then possible according to claim 4 in that diametrically opposite each other with respect to the lever axis and in each case centered two further control signal generators are arranged between two first control signal generators are and that the actuator is provided with four recesses are in the second rotary position in the area of the first control signal transmitter.
- the actuator is provided with four recesses are in the second rotary position in the area of the first control signal transmitter.
- 90 A second pair is offset from the other two control signal transmitters to be arranged by further control signal generators.
- control lever is not rotationally symmetrical with respect to the lever axis trained so that based on its location can be recognized whether he takes the first or the second rotary position.
- the control unit shown is a hydraulic control unit, which is built on the basis of pressure reducing valves. Overall, are in one Device housing 10 eight pressure reducing valves 11 in a mutual Angular distance ⁇ of 45 degrees arranged around a lever axis 12.
- the Pressure reducing valves form the control signal transmitter of the control unit.
- Your inner Structure is generally known and e.g. DE 27 51 946 C2 can be removed.
- the plunger 13 one of which is a pressure reducing valve is assigned and in a mounting and cover flange 14 of the device housing 10 inserted guide bushes 15 in the direction of Lever axis are movably guided.
- the plunger 13 protrude with a rounded End beyond the cover flange 14 and the guide bushes 15. Through the Movement of a plunger 13 into the device housing becomes a control spring of a pressure reducing valve, or more generally a pressure reducing valve actuated.
- This actuation is initiated via the handle 20 of a control lever 21, the one carried by the device housing 10 and shown only schematically Cardan joint 22 is attached.
- This has two shafts, their axes stand perpendicular to each other and at a pivot point designated by 23 cut and span a plane called the axis plane may.
- the control lever 21 Due to the universal joint 22, the control lever 21 is on all sides around the Pivot point 23 is pivotable.
- the lever axis is perpendicular to the Axis plane and also goes through pivot point 23.
- the handle 20 is attached to a stem 24 of the control lever 21, which from the Lever axis 12 is bent out, so that the control lever 21 is not overall is arranged rotationally symmetrical to the lever axis 12.
- the stem 24 is over one internally threaded socket 25 with an upper part 26 of the universal joint 22 connected.
- a plate 30 is clamped, which extends in a plane running parallel to the axis plane, ie essentially is arranged perpendicular to the lever axis 12.
- the shape of this plate 30 is particularly evident from FIG. 3.
- the plate has the shape of a cross and is 12 with respect to the lever axis fourfold symmetrical.
- the individual arms 31 of the plate 30 are thus arranged at an angular distance of 90 degrees with respect to the lever axis 12.
- the plate was created from a circular plate into which four cutouts 32 have been introduced from the outer edge.
- a lower part 36 of the universal joint 22 is screwed into a locking bush 37, which is rotatably mounted in the device housing 10 about the axis 12 and e.g. is secured with a lock nut 38 on part 36.
- a locking bush 37 In the outer surface of the Locking bush 37 are located in a position perpendicular to the lever axis 12 Level two locking recesses 39, which are at an angular distance of 45 degrees from one another to have. They interact with a radially arranged locking pin 40, which a catch spring 41 tries to push into one of the recesses 39.
- the plate 30 is in the one in FIG Lines drawn position. You can see that the arms 31 over the Ram 13 of four first arranged at an angular distance of 90 degrees to each other Pressure reducing valves 11 extend. If the control lever 21 is now pivoted, so depending on the direction of rotation one or two of these first Pressure reducing valves actuated. The four further pressure reducing valves 11, the also have an angular distance of 90 degrees from each other and against the first pressure reducing valves are offset by 45 degrees, remain from pivoting of the control lever 21 unaffected, since they are in the area of the recesses 32 of the plate 30 are located.
- the path of the plunger 13 out of the device housing 10 is like that of the already used today and e.g. control devices known from DE 27 51 946 C2 limited by a stop, so that the plunger 13 despite the recesses 32 are held in the plate 30 on the device housing 10 and the plate 30 in its neutral position, in which it is located with all parts above the tappets 13, can be rotated without obstruction by the plunger.
Description
Die Erfindung geht aus von einem handbetätigten Steuergerät, das insbesondere zur hydraulischen Betätigung von hydraulischen Ventilen verwendet wird und das die Merkmale aus dem Oberbegriff des Anspruchs 1 aufweist.The invention relates to a hand-operated control device, which in particular is used for hydraulic actuation of hydraulic valves and that has the features from the preamble of claim 1.
Ein solches handbetätigtes Steuergerät ist z.B. aus der DE 27 51 946 C2 bekannt. Das Steuergerät besitzt einen Steuerhebel, der über zwei Wellen oder Wellenstummel, deren Achsen eine Achsebene aufspannen und sich in einem Schwenkpunkt schneiden, kardanisch an einem Gerätegehäuse gelagert und somit aus einer Neutratstellung allseitig um den Schwenkpunkt verschwenkbar ist. Als Steuersignalgeber sind bei dem bekannten Gerät vier direktgesteuerte Druckreduzierventile vorhanden, die in Winkelabständen von 90 Grad um eine senkrecht auf der Achsebene stehende und durch den Schwenkpunkt gehende Hebelachse angeordnet sind. Zu jedem Druckreduzierventil gehört ein Stößel, der im Gerätegehäuse parallel zur Hebelachse beweglich geführt ist, aus dem Gerätegehäuse herausragt und von einem mit dem Steuerhebel fest verbundenen plattenartigen Betätigungsglied gegen die Kraft einer Rückstellfeder und einer Regelfeder des jeweiligen Druckreduzierventils niedergedrückt werden kann. Die an den Stößel angreifenden Rückstellfedern sorgen dafür, daß der Steuerhebel jeweils eine Neutralstellung einnimmt, wenn er nicht von außen betätigt wird und nicht eine Verrastung in einem verschwenkten Zustand für ihn vorgesehen ist.Such a manually operated control device is e.g. known from DE 27 51 946 C2. The control unit has a control lever that over two shafts or stub shafts, whose axes span an axis plane and are at a pivot point cut, gimbal mounted on a device housing and thus from one Neutratposition is pivotable on all sides about the pivot point. As a control signal generator are four directly controlled pressure reducing valves in the known device available, which are at an angular distance of 90 degrees perpendicular to the Axle plane standing and through the pivot point lever axis arranged are. Every pressure reducing valve has a tappet in the device housing is guided parallel to the lever axis, protrudes from the device housing and from a plate-like actuator firmly connected to the control lever against the force of a return spring and a control spring of the respective Pressure reducing valve can be depressed. Those attacking the pestle Return springs ensure that the control lever is always in a neutral position assumes if it is not operated from the outside and does not engage is provided for him in a pivoted state.
Wird bei dem bekannten Steuergerät der Steuerhebel in einer Ebene verschwenkt. die durch die Achsen von zwei sich diametral gegenüberliegenden Druckreduzierventilen bestimmt ist, so wird eines von vier Druckreduzierventilen, also ein Steuersignalgeber betätigt. Durch eine Verschwenkung des Steuerhebels in einer anderen Ebene ist es möglich, gleichzeitig zwei Druckreduzierventile zu betätigen, wobei das Maß der Betätigung des einen Druckreduzierventils im Vergleich zum Maß der Betätigung des anderen Druckreduzierventils von der Lage der Schwenkebene abhängt.In the known control device, the control lever is pivoted in one plane. those through the axes of two diametrically opposed Pressure reducing valves is determined, one of four pressure reducing valves, that is, a control signal transmitter is actuated. By swiveling the control lever on another level it is possible to close two pressure reducing valves at the same time actuate, the degree of actuation of a pressure reducing valve in comparison to measure the level of actuation of the other pressure reducing valve depends on the swivel plane.
Mit dem bekannten Steuergerät, das üblicherweise in mobilen Arbeitsmaschinen verwendet wird, werden normalerweise zwei Wegeventilachsen betätigt. Zur Betätigung weiterer Wegeventile sind weitere Steuergeräte notwendig. Um den Aufwand für solche weiteren Steuergeräte zu vermeiden und nicht zusätzlichen Platz zu beanspruchen ist schon vorgeschlagen worden, die hydraulischen Steuersignale zweier demselben Wegeventil zugeordneter Druckreduzierventile eines hydraulischen Steuergeräts über elektromagnetisch betätigbare Schaltventile einem ersten oder einem zweiten Wegeventil zuzuführen, wobei man die Tatsache berücksichtigt hat, daß nur manche hydraulische Verbraucher einer mobilen Arbeitsmaschine gleichzeitig, andere dagegen immer zu verschiedenen Zeiten benutzt werden.With the known control unit, which is usually used in mobile machines two directional valve axes are normally used. For actuation further directional control valves, further control units are necessary. To the effort to avoid such additional control devices and not additional space It has already been proposed to claim the hydraulic control signals two pressure reducing valves of a hydraulic one assigned to the same directional control valve Control unit via electromagnetically actuated switching valves a first or a second directional valve, taking into account the fact has that only some hydraulic consumers of a mobile work machine at the same time, others always used at different times become.
Bei einer solchen aus der DE 196 30 798 A1 bekannten Vorsteuerung weist das Steuergerät zusätzlich zu vier Druckreduzierventilen einen elektrischen Schalter auf, durch dessen Betätigung die Elektromagnete der Schaltventile erregt und die Schaltventile umgeschaltet werden. Nachteilig erscheint hier, daß einem hydraulischen Steuergerät, das schon einen hydraulischen Pumpen- und einen hydraulischen Tankanschluß besitzt, zusätzlich auch elektrische Energie zugeführt werden muß. Darüber hinaus erfordert die Betätigung eines elektrischen Schalters das Loslassen des Steuerhebels oder, sofern der elektrische Schalter in den Steuerhebel integriert ist, zumindest eine Veränderung des Zugriffs. Bei einer Fehlfunktion des elektrischen Schalters kann es zu gefährlichen Situationen kommen, weil andere Ventile als die gewünschten betätigt werden. In such a pilot control known from DE 196 30 798 A1, the Control unit in addition to four pressure reducing valves an electrical switch on, the actuation of which energizes the solenoids of the switching valves and the Switching valves are switched. A disadvantage here appears that a hydraulic Control unit that already has a hydraulic pump and a hydraulic Has tank connection, additional electrical energy can also be supplied got to. It also requires actuation of an electrical switch releasing the control lever or, if the electrical switch is in the Control lever is integrated, at least a change in access. At a Malfunction of the electrical switch can lead to dangerous situations come because valves other than the desired are actuated.
Der Erfindung liegt die Aufgabe zugrunde, ein handbetätigtes Steuergerät mit den Merkmalen aus dem Oberbegriff des Anspruchs 1 so weiterzuentwickeln, daß mit ihm ohne übermäßige Erhöhung des Aufwands eine Vielzahl von hydraulischen Ventilen sicher betätigt werden kann.The invention has for its object a hand-operated control device with the Develop features from the preamble of claim 1 so that with him a variety of hydraulic without excessive increase in effort Valves can be operated safely.
Diese Aufgabe wird bei einem handbetätigten Steuergerät mit den Merkmalen aus dem Oberbegriff des Anspruchs 1 erfindungsgemäß dadurch gelöst, daß man dieses Steuergerät zusätzlich mit den Merkmalen aus dem kennzeichnenden Teil des Anspruchs 1 ausstattet. Danach ist zwischen zwei ersten Steuersignalgebern ein weiterer Steuersignalgeber angeordnet. Der Steuerhebel ist mitsamt dem Betätigungsglied um die Hebelachse von einer ersten Drehstellung in eine zweite Drehstellung und umgekehrt verdrehbar, wobei in der ersten Drehstellung die ersten Steuersignalgeber vom Betätigungsglied beaufschlagbar sind. Eine Aussparung im Betätigungsglied liegt in der ersten Drehstellung des Steuerhebels über dem weiteren Steuersignalgeber, so daß dieser in der ersten Drehstellung nicht betätigt werden kann. Durch die Verdrehung des Steuerhebels mitsamt dem Betätigungsglied in die zweite Drehstellung gelangt ein Bereich des Betätigungsgliedes über den weiteren Steuersignalgeber, so daß dessen Betätigung möglich ist.This task is performed on the features of a manually operated control unit the preamble of claim 1 according to the invention solved in that this Control unit with the features from the characterizing part of claim 1. Then there is between two first control signal generators another control signal generator arranged. The control lever is together with the actuator around the lever axis from a first rotational position to a second Rotational position and vice versa rotatable, the first in the first rotational position Control signal generator can be acted upon by the actuator. A recess is in the actuator in the first rotational position of the control lever the further control signal generator, so that it is not in the first rotational position can be operated. By turning the control lever together with the actuator an area of the actuator reaches the second rotational position via the further control signal generator, so that its actuation is possible.
Vorteilhafte Ausgestaltungen eines erfindungsgemäßen handbetätigten Steuergeräts kann man den Unteransprüchen entnehmen.Advantageous embodiments of a hand-operated control device according to the invention can be found in the subclaims.
Grundsätzlich ist es denkbar, das Betätigungsglied so zu gestalten und den weiteren Steuersignalgeber so anzuordnen, daß in der zweiten Drehstellung des Steuerhebels bei einer Betätigung des weiteren Steuersignalgebers gleichzeitig auch die beiden ersten Steuersignalgeber betätigt werden, sofern die Art der hydraulischen Verbraucher eine solche Ansteuerung erfordert. Soll es jedoch möglich sein, daß in der zweiten Drehstellung des Steuerhebels ein vom weiteren Steuersignalgeber erzeugtes Steuersignal gleichzeitig mit einem Steuersignal nur eines der ersten Steuersignalgeber oder ganz allein abgegeben wird, so wird dies durch eine Ausbildung gemäß Anspruch 2 oder 3 erreicht.Basically, it is conceivable to design the actuator and the other Arrange control signal generator so that in the second rotary position of the control lever when the further control signal transmitter is actuated at the same time the first two control signal transmitters are actuated, provided the type of hydraulic Consumer requires such control. However, it should be possible be that in the second rotary position of the control lever from the other control signal generator generated control signal simultaneously with a control signal only one the first control signal generator or is given all alone, this is done by an education according to claim 2 or 3 achieved.
Bevorzugt läßt sich die Erfindung bei einem handbetätigen Steuergerät anwenden, das um die Hebelachse herum in einem jeweiligen Winkelabstand von 90 Grad vier erste Steuersignalgeber besitzt. Die Ansteuerung einer weiteren Wegeventilachse in zwei Richtungen ist dann gemäß Anspruch 4 dadurch möglich, daß einander bezüglich der Hebelachse diametral gegenüberliegend und jeweils mittig zwischen zwei ersten Steuersignalgebern zwei weitere Steuersignalgeber angeordnet sind und daß das Betätigungsglied mit vier Aussparungen versehen ist, die sich in der zweiten Drehstellung im Bereich der ersten Steuersignalgeber befinden. Somit können in der ersten Drehstellung des Steuerhebels nur die weiteren Steuersignalgeber und in der zweiten Drehstellung des Steuerhebels nur die weiteren Steuersignalgeber betätigt werden. Selbstverständlich ist es möglich, um 90 Grad versetzt gegenüber den zwei weiteren Steuersignalgebem ein zweites Paar von weiteren Steuersignalgebem anzuordnen.The invention can preferably be applied to a manually operated control device, that around the lever axis at a respective angular distance of 90 Degree four has first control signal transmitter. The control of another directional valve axis in two directions is then possible according to claim 4 in that diametrically opposite each other with respect to the lever axis and in each case centered two further control signal generators are arranged between two first control signal generators are and that the actuator is provided with four recesses are in the second rotary position in the area of the first control signal transmitter. Thus, only the other can in the first rotary position of the control lever Control signal transmitter and in the second rotary position of the control lever only the others Control signal transmitter can be operated. Of course it is possible to 90 A second pair is offset from the other two control signal transmitters to be arranged by further control signal generators.
Gemäß Anspruch 5 ist der Steuerhebel bezüglich der Hebelachse nicht rotationssymmetrisch ausgebildet, so daß aufgrund seiner Lage erkannt werden kann, ob er die erste oder die zweite Drehstellung einnimmt.According to claim 5, the control lever is not rotationally symmetrical with respect to the lever axis trained so that based on its location can be recognized whether he takes the first or the second rotary position.
Ein Ausführungsbeispiel eines erfindungsgemäßen handbetätigten Steuergeräts ist in den Zeichnungen dargestellt. Anhand der Figuren dieser Zeichnungen wird die Erfindung nun näher erläutert.An embodiment of a hand-operated control device according to the invention is shown in the drawings. Based on the figures of these drawings the invention is now explained in more detail.
Es zeigen
- Figur 1
- das Ausführungsbeispiel teilweise in Ansicht, teilweise in einem Schnitt durch die Hebelachse im Bereich der Steuerhebellagerung,
- Figur 2
- einen Querschnitt durch eine Lagerbuchse des Steuerhebels für die Drehung um die Hebelachse und
- Figur 3
- in stark schematisierter Form eine Draufsicht auf das Gerätegehäuse mitsamt dem Betätigungsglied für die einzelnen Steuersignalgeber, jedoch ohne den Steuerhebel.
- Figure 1
- the embodiment partly in view, partly in a section through the lever axis in the area of the control lever bearing,
- Figure 2
- a cross section through a bearing bush of the control lever for rotation about the lever axis and
- Figure 3
- in a highly schematic form, a top view of the device housing together with the actuator for the individual control signal transmitters, but without the control lever.
Bei dem gezeigten Steuergerät handelt es sich um ein hydraulisches Steuergerät,
das auf der Basis von Druckreduzierventilen aufgebaut ist. Insgesamt sind in einem
Gerätegehäuse 10 acht Druckreduzierventile 11 in einem gegenseitigen
Winkelabstand α von 45 Grad um eine Hebelachse 12 herum angeordnet. Die
Druckreduzierventile bilden die Steuersignalgeber des Steuergeräts. Ihr innerer
Aufbau ist allgemein bekannt und z.B. der DE 27 51 946 C2 entnehmbar. In den
Figuren erkennbar sind nur die Stößel 13, von denen jeweils einer einem Druckreduzierventil
zugeordnet ist und die in in einem Befestigungs- und Abdeckflansch
14 des Gerätegehäuses 10 eingesetzten Führungsbuchsen 15 in Richtung der
Hebelachse beweglich geführt sind. Die Stößel 13 ragen mit einem abgerundeten
Ende über den Abdeckflansch 14 und die Führungsbuchsen 15 hinaus. Durch die
Bewegung eines Stößels 13 in das Gerätegehäuse hinein wird eine Regelfeder
eines Druckreduzierventils gespannt oder allgemeiner ein Druckreduzierventil
betätigt.The control unit shown is a hydraulic control unit,
which is built on the basis of pressure reducing valves. Overall, are in one
Device housing 10 eight
Diese Betätigung wird über den Handgriff 20 eines Steuerhebels 21 eingeleitet,
der an einem vom Gerätegehäuse 10 getragenen und nur schematisch dargestellten
Kardangelenk 22 angebracht ist. Dieses weist zwei Wellen auf, deren Achsen
senkrecht aufeinander stehen und sich in einem mit 23 bezeichneten Schwenkpunkt
schneiden und eine Ebene aufspannen, die als Achsebene bezeichnet sein
möge. Aufgrund des Kardangelenks 22 ist der Steuerhebel 21 allseitig um den
Schwenkpunkt 23 verschwenkbar. Die Hebelachse steht senkrecht auf der
Achsebene und geht ebenfalls durch den Schwenkpunkt 23. This actuation is initiated via the
Der Handgriff 20 ist auf einem Stiel 24 des Steuerhebels 21 befestigt, der aus der
Hebelachse 12 herausgebogen ist, so daß der Steuerhebel 21 insgesamt nicht
rotationssymmetrisch zur Hebelachse 12 angeordnet ist. Der Stiel 24 ist über eine
mit einem Innengewinde versehene Buchse 25 mit einem oberen Teil 26 des Kardangelenks
22 verbunden. Zwischen den in die Buchse 25 eingeschraubten oberen
Teil 26 und der Buchse 25 ist als Betätigungsglied, das mit den Stößeln 13
der Druckreduzierventile 11 zusammenwirkt, eine Platte 30 eingeklemmt, die sich
in einer parallel zur Achsebene verlaufenden Ebene erstreckt, also im wesentlichen
senkrecht zur Hebelachse 12 angeordnet ist. Die Gestalt dieser Platte 30 ist
insbesondere aus Figur 3 ersichtlich. Die dort mit durchgehenden Linien gezeichnete
Platte besitzt die Form eines Kreuzes und ist bezüglich der Hebelachse 12
vierzählig symmetrisch ausgebildet. Die einzelnen Arme 31 der Platte 30 sind also
bezüglich der Hebelachse 12 in einem Winkelabstand von 90 Grad angeordnet.
Man kann sich die Platte entstanden denken aus einer kreisrunden Platte, in die
vom äußeren Rand her vier Aussparungen 32 eingebracht worden sind.The
Ein unteres Teil 36 des Kardangelenks 22 ist in eine Rastbuchse 37 eingeschraubt,
die in dem Gerätegehäuse 10 um die Achse 12 drehbar gelagert ist und
z.B. mit einer Kontermutter 38 am Teil 36 gesichert ist. In der Außenfläche der
Rastbuchse 37 befinden sich in einer senkrecht auf der Hebelachse 12 stehenden
Ebene zwei Rastvertiefungen 39, die einen Winkelabstand von 45 Grad voneinander
haben. Sie wirken mit einem radial angeordneten Rastbolzen 40 zusammen,
den eine Rastfeder 41 in eine der Vertiefungen 39 hineinzudrücken versucht.
Aufgrund der drehbar gelagerten Rastbuchse 37 können der Steuerhebel
21 und mit ihm die Teile des Kardangelenks 22 um die Hebelachse 12 zwischen
einer ersten Drehstellung, in der der Rastbolzen 40 in die eine Vertiefung 39 eintaucht,
und einer zweiten Drehstellung, in der der Rastbolzen 40 in die andere
Vertiefung 39 eintaucht, verdreht werden. Durch einen axial an der Rastbuchse 37
vorspringenden Ansatz 42, der mit nicht näher dargestellten Anschlägen im Gerätegehäuse
10 zusammenwirkt, ist die Verdrehbarkeit auf wenig mehr als 45 Grad
beschränkt.A
in der ersten Drehstellung befindet sich die Platte 30 in der in Figur 3 mit durchgehenden
Linien gezeichneten Position. Man sieht, daß sich die Arme 31 über die
Stößel 13 von vier ersten in einem Winkelabstand von 90 Grad zueinander angeordneten
Druckreduzierventilen 11 erstrecken. Wird nun der Steuerhebel 21 verschwenkt,
so werden je nach Schwenkrichtung eines oder zwei dieser ersten
Druckreduzierventile betätigt. Die vier weiteren Druckreduzierventile 11, die
ebenfalls einen Winkelabstand von 90 Grad voneinander haben und gegen die
ersten Druckreduzierventile um 45 Grad versetzt sind, bleiben von der Verschwenkung
des Steuerhebels 21 unbeeinflußt, da sie sich im Bereich der Aussparungen
32 der Platte 30 befinden. Um die weiteren Druckreduzierventile 11
betätigen zu können, wird der Steuerhebel 21 unter Überwindung der Rastkraft
des Rastbolzens 40 und der Rastfeder 41 um 45 Grad bezüglich der Hebelachse
12 gedreht, wodurch die Platte 30 in die in Figur 3 gestrichelt eingezeichnete Position
gelangt. Nun befinden sich die Arme 31 über den Stößeln 13 der weiteren
Druckreduzierventile, während die Stößel 13 der ersten vier Druckreduzierventile
in den Aussparungen 32 liegen. Bei einer nun folgenden Verschwenkung des
Steuerhebels 21 werden eines oder zwei der weiteren Druckreduzierventile 11
betätigt.in the first rotational position, the
Der Weg der Stößel 13 aus dem Gerätegehäuse 10 heraus ist wie auch bei den
heute schon verwendeten und z.B. aus der DE 27 51 946 C2 bekannten Steuergeräten
durch einen Anschlag begrenzt, so daß die Stößel 13 trotz derAussparungen
32 in der Platte 30 am Gerätegehäuse 10 gehalten sind und die Platte 30
in ihrer Neutralstellung, in der sie sich mit allen Teilen über den Stößeln 13 befindet,
ohne Behinderung durch die Stößel verdreht werden kann.The path of the
Claims (6)
- A hand-actuated control device, in particular for the hydraulic actuation of hydraulic valves,
with a control lever (21) which is able to be swivelled from a neutral position to all sides about a swivel point (23), about axes lying essentially in an axial plane and intersecting at the swivel point (23),
with at least two control signal generators (11), which are arranged spaced apart from one another, preferably by ninety angular degrees, in relation to a lever axis (12) which is perpendicular to the axial plane and passes through the swivel point (23),
and with an actuating element (30) which extends largely parallel to the axial plane and with which the two control signal generators (11) can be actuated individually or jointly when the control lever (21) is swivelled out of the neutral position,
characterized in that
between the two first control signal generators (11) there is arranged a further control signal generator (11),
that the control lever (21) can be turned together with the actuating element (30) about the lever axis (12) from a first turning position, in which the first control signal generators (11) can be actuated by the actuating element (30), into a second turning position and vice versa,
and that the actuating element (30) is provided with a recess (32) in such a way that the further control signal generator (11) can be actuated only in the second turning position. - A hand-actuated control device according to Claim 1, characterized in that, in the second turning position, the recess (32) of the actuating element (30) is in the region of a first control signal generator (11).
- A hand-actuated control device according to Claim 2, characterized in that the actuating element (30) has two recesses (32), one of which is located in the region of the further control signal generator (11) in the first turning position and a respective one of which is located in the region of a first control signal generator (11) in the second turning position.
- A hand-actuated control device according to Claim 3, characterized in that four first control signal generators (11) are arranged around the lever axis (12) at respective angular intervals of ninety degrees,
that there are arranged diametrically opposite each other in relation to the lever axis (12) and respectively centrally between two first control signal generators (11) two further control signal generators (11),
and that the actuating element (30) is provided with four recesses (32), which in the second turning position are located in the region of the first control signal generators (11). - The hand-actuated control device according to any of the preceding claims, characterized in that the control lever (21) is formed in such a way that it is rotationally asymmetrical in relation to the lever axis (12).
- A hand-actuated control device according to any of the preceding claims, characterized in that, in at least one of the two turning positions, the control lever (21) is engaged by an engaging device (39, 40, 41).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19844860 | 1998-09-30 | ||
| DE19844860A DE19844860A1 (en) | 1998-09-30 | 1998-09-30 | Manually operated control device, in particular for the hydraulic actuation of hydraulic valves |
| PCT/EP1999/006737 WO2000019108A1 (en) | 1998-09-30 | 1999-09-11 | Manually operated control device, especially for hydraulically actuating hydraulic valves |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1117936A1 EP1117936A1 (en) | 2001-07-25 |
| EP1117936A4 EP1117936A4 (en) | 2001-10-10 |
| EP1117936B1 true EP1117936B1 (en) | 2003-04-23 |
Family
ID=7882807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99946163A Expired - Lifetime EP1117936B1 (en) | 1998-09-30 | 1999-09-11 | Manually operated control device, especially for hydraulically actuating hydraulic valves |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6601611B1 (en) |
| EP (1) | EP1117936B1 (en) |
| JP (1) | JP2002525774A (en) |
| KR (1) | KR100641467B1 (en) |
| DE (2) | DE19844860A1 (en) |
| WO (1) | WO2000019108A1 (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT285266B (en) * | 1967-05-09 | 1970-10-27 | Orenstein & Koppel Ag | Cardanic hydraulic valve actuation |
| DE2049869C3 (en) * | 1970-10-10 | 1984-11-08 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Control device, especially for hydraulic pit support teams |
| FR2266813B1 (en) * | 1974-04-04 | 1979-02-16 | Bennes Marrel | |
| FR2376978A1 (en) * | 1977-01-06 | 1978-08-04 | Rexroth Sigma | IMPROVEMENTS TO FLUID DISTRIBUTOR DEVICES, ESPECIALLY FOR HYDRAULIC REMOTE CONTROL |
| GB2046022A (en) * | 1979-03-14 | 1980-11-05 | Shelton G G | Electric switches |
| GB2115526B (en) * | 1982-02-24 | 1986-04-09 | Teledyne Ind | Multiposition selector valve |
| US4404991A (en) * | 1982-09-29 | 1983-09-20 | Donahue Enterprises, Inc. | Valve control assembly |
| WO1990013766A1 (en) * | 1989-04-28 | 1990-11-15 | Kabushiki Kaisha Komatsu Seisakusho | Pilot valve |
| JP2857697B2 (en) * | 1990-05-07 | 1999-02-17 | 株式会社表鉄工所 | Truck crane operating device |
| DE4016977A1 (en) * | 1990-05-25 | 1991-11-28 | Meflex Telecontrol Gmbh & Co | TRANSMITTER DEVICE IN A HOUSING FOR THE MOVEMENT OF TAX TRAIN, RODS AND THE LIKE. |
| EP0516870A1 (en) | 1991-06-01 | 1992-12-09 | Rudolf Schadow GmbH | Multi-directional switch |
| DE4410201C2 (en) * | 1994-03-24 | 2000-07-20 | Schadow Rudolf Gmbh | Quadrant switch |
| GB9506500D0 (en) * | 1995-03-30 | 1995-05-17 | Brown David Hydraulics Ltd | An improved joystick arrangement |
| DE29507179U1 (en) * | 1995-04-28 | 1995-11-09 | Iwa Fluid Technik Gmbh | Pilot valve |
| DE29604210U1 (en) * | 1996-03-07 | 1996-07-04 | Iwa Fluid Technik Gmbh | Pilot valve for hydraulic and / or electrical controls |
| DE19630798A1 (en) * | 1996-06-22 | 1998-01-02 | Rexroth Mannesmann Gmbh | Pilot control for two hydraulically operated directional valves |
-
1998
- 1998-09-30 DE DE19844860A patent/DE19844860A1/en not_active Withdrawn
-
1999
- 1999-09-11 US US09/806,284 patent/US6601611B1/en not_active Expired - Fee Related
- 1999-09-11 EP EP99946163A patent/EP1117936B1/en not_active Expired - Lifetime
- 1999-09-11 WO PCT/EP1999/006737 patent/WO2000019108A1/en active IP Right Grant
- 1999-09-11 DE DE59905224T patent/DE59905224D1/en not_active Expired - Fee Related
- 1999-09-11 JP JP2000572529A patent/JP2002525774A/en active Pending
- 1999-09-11 KR KR1020017004098A patent/KR100641467B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE19844860A1 (en) | 2000-04-06 |
| US6601611B1 (en) | 2003-08-05 |
| EP1117936A4 (en) | 2001-10-10 |
| DE59905224D1 (en) | 2003-05-28 |
| KR20010075497A (en) | 2001-08-09 |
| JP2002525774A (en) | 2002-08-13 |
| EP1117936A1 (en) | 2001-07-25 |
| WO2000019108A1 (en) | 2000-04-06 |
| KR100641467B1 (en) | 2006-10-31 |
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