EP1487732B1 - Control - Google Patents

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Publication number
EP1487732B1
EP1487732B1 EP03704292A EP03704292A EP1487732B1 EP 1487732 B1 EP1487732 B1 EP 1487732B1 EP 03704292 A EP03704292 A EP 03704292A EP 03704292 A EP03704292 A EP 03704292A EP 1487732 B1 EP1487732 B1 EP 1487732B1
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EP
European Patent Office
Prior art keywords
control
pressure
valve
brake
brake release
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 - Fee Related
Application number
EP03704292A
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German (de)
French (fr)
Other versions
EP1487732A1 (en
Inventor
Heinz Habermann
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.)
Bosch Rexroth AG
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Bosch Rexroth AG
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Publication date
Application filed by Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1487732A1 publication Critical patent/EP1487732A1/en
Application granted granted Critical
Publication of EP1487732B1 publication Critical patent/EP1487732B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/08—Driving gear incorporating fluid motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/42—Control devices non-automatic
    • B66D1/44—Control devices non-automatic pneumatic of hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/26—Operating devices pneumatic or hydraulic

Definitions

  • the invention relates to a controller for a hydraulically operated consumer, in particular a winch according to the preamble of claim 1.
  • a winch control is disclosed, in which a winch for hoisting / hauling the hawser is driven by a hydraulic motor. This is in turn driven by a variable displacement pump, wherein the pressure fluid flow from the variable displacement pump to the hydraulic motor and the hydraulic motor to a return (tank) is controlled via a proportionally adjustable main valve.
  • This main valve is designed with a manually operated feedforward control via which the operating states “hovering”, “Fieren” and - optionally - "Mooring" can be set.
  • the known winch control further has a connection for a remote control, via which the main valve can be controlled even when uncontrolled pilot control.
  • a remote control via which the main valve can be controlled even when uncontrolled pilot control.
  • a hydraulically operated brake device In the neutral position of the main valve, i. when the winch is unactuated whose rotational position is fixed by a hydraulically operated brake device.
  • This has a spring-biased hydraulic cylinder in the direction of braking engagement.
  • the brake is ventilated by pressurization of an effective against the spring pressure chamber of the hydraulic cylinder.
  • the present invention seeks to provide a controller for a hydraulically operated consumer, in particular for a winch, in which the release of a brake device associated with the winch is carried out substantially vibration-free even at low load pressure.
  • the control is provided with a brake release valve, by means of which a brake control chamber of the brake device which is active in the direction of a brake release can be acted upon by the brake control pressure picked off upstream of the main valve both when the main valve is actuated via the remote control and via the pilot control device.
  • control of the braking device is thus independent of the operating mode (remote control / manual operation) on the same brake release pressure, which is independent of the pressure drop at the main valve or by the vote of the control edges of the pilot control and the main valve.
  • the brake release pressure was tapped in the case of a control via a remote control downstream of the main valve - it was surprisingly found that the vibrations no longer occur when tapping the brake pressure upstream of the main valve.
  • the required for actuating the brake release valve brake control pressure corresponds in the present invention, the control pressure for driving the main valve. That the applied via the remote control or pilot control pressure is then used to switch the brake release valve.
  • This brake release valve is preferably designed as a 3/2-way valve, which relieves effective in the direction of brake release control chamber of the braking device in a spring-biased position and which can be switched by the aforementioned brake control pressure in a position in which the brake control chamber is acted upon by the brake release pressure.
  • this brake release pressure substantially corresponds to the pump pressure applied via the variable displacement pump.
  • control of the individual elements of the winch control is particularly simple when a control pressure for controlling the drive designed as a hydraulic motor with variable absorption capacity also corresponds to the control pressure for actuating the brake release valve and the main valve.
  • the pilot control has a per se known way valve at least two output terminals, which are connected via control lines, each with a control chamber of the main valve.
  • the higher applied to the output terminals or via the remote control discrete control pressure is tapped via a shuttle valve assembly as a brake control pressure and / or as a control pressure for driving the hydraulic motor.
  • the limit pressure at which the brake release valve is switched over to ventilate the brake device can be adapted to different operating conditions via an adjustable control spring of the brake release valve.
  • the directional control valve of the pilot control can be adjusted preferably in a Fieren- / Hieven- and Mooringschaltposition so that all three Radio-ven” and “Fieren” are adjustable by remote control.
  • FIG. 2 shows the circuit diagram of a winch control, via which a winch for hoisting or Fieren a hawser can be controlled.
  • the basic concept of the winch control illustrated in FIG. 2 corresponds to the winch control described in the document WO 00/57067 A1, so that only the components essential for understanding will be described below and, moreover, reference is made to the disclosure of the aforementioned publication.
  • this braking device 8 has a hydraulic cylinder 10, which is biased by a spring in the direction of braking engagement and can be pressurized by pressurizing an annular space 12 in the direction of brake release with pressure medium.
  • the connection of the terminals 14, 16 of the hydraulic motor 4 with a pressure of a variable (not shown) pressure line 19 and a return or tank line 21 via a pilot-operated main valve 18, the valve slide from its spring-biased home position to the right (FIG 2) in the direction of "Hieven” and to the left in the direction of "Fieren” is continuously adjustable.
  • This main valve 18 has two tank connections 20, 22, a pressure connection 24, a working connection 26 connected to the connection 14 of the hydraulic motor, a working connection 28 connected to the connection 16 of the hydraulic motor and a control connection 30.
  • the tank connection 22 is connected via a drain valve 32 to the tank line 21.
  • This drain valve 32 is acted upon in the closing direction by the force of a spring and a voltage applied in a control line 34 control pressure and in the opening direction of the pressure applied to the terminal 14 of the hydraulic motor.
  • a pressure compensator 38 is provided which is acted upon in the closing direction by a pressure upstream of a metering diaphragm formed by the main valve 18 and in the opening direction of the pressure at the control terminal 30 - this pressure corresponds to the pressure downstream of metering diaphragm.
  • the two control chambers of the main valve 18 are connected via control channels 40, 42 with Ichan Whyn of shuttle valves 44, 46, said output ports are connected via a third shuttle valve 48 and a motor control line 50 with egg nem control terminal 52 of the hydraulic motor 4.
  • a motor control valve 54 of the hydraulic motor 4 are controlled to change the absorption volume.
  • the input terminals of the two shuttle valves 44, 48 are connected to two remote control terminals 56 and 58, respectively, and to two pilot ports 60, 62 of a directional valve 64. This can be moved from its spring-biased home position by means of a control lever 66 in the switch positions "Fieren”, “Hieven” and “Mooring".
  • the directional control valve 64 further has an input port 70 and an output port 72.
  • the input port 70 is connected via a pressure reducing valve 74 and a Pressure channel 76 connected to the supply line 36.
  • a flow regulator 78 In the pressure channel 76, a flow regulator 78, a direction of the pressure reducing valve 74 opening check valve 80 and a further pressure reducing valve 82 are provided. The latter is acted upon in the opening direction by the pressure at the outlet of the pressure reducing valve 74 and in the closing direction by the force of a spring.
  • the pressure reducing valve 74 is adjusted via a control cam 84 of the actuating lever 66, wherein in a neutral position an output terminal of the pressure reducing valve 74 is connected via a leakage channel 86 with a leakage line 88.
  • a brake pressure channel 90 In the area between the flow regulator 78 and the further pressure reducing valve 82 branches off a brake pressure channel 90, which is guided to a terminal 92 of a brake release valve 94.
  • This is designed as a 3/2-way valve that shuts off the terminal 92 in its spring-biased position and connects a connected to the annulus 12 brake vent line 96 via a discharge line 98 with the leakage line 88 or the tank line 21.
  • the effective in the opposite direction to the feet of the brake release valve 94 control chamber is acted upon via a channel 100 with the pressure in the engine control line 50, via which also the engine control valve 54 is controlled and the larger of the two Konventi-len 44 and 48th corresponding pressures.
  • the directional control valve 64 may be executed without the switching position "Mooring". In such a variant, the flow regulator 78 and the check valve 80 would be omitted.
  • an internal leakage channel 86 instead of the externally extending leakage channel 86, an internal leakage channel 86 'could also be used.
  • the adjusting lever 66 is pivoted to the right in the hatched Hie-ven area and moved according to the piston of the directional control valve 64 to the right.
  • the pressure reducing valve 74 is actuated via the control cam 84, so that the input terminal 70 is connected via the further pressure reducing valve 82 to the pressure channel 76 and thus to the pressure line leading to the pump pressure 19.
  • the Hieven position of the pressurized input terminal 70 is connected to the pilot port 62, while the other pilot port 60 is connected to the output terminal 72 and thus the leakage channel 86 is the verbun.
  • the pressure corresponding to the input port 70 corresponding control pressure is tapped via the shuttle valve 46 and the control channel 42 and is located on the right in Figure 2 control chamber of the main valve 18 - this is moved according to the applied control pressure from the illustrated basic position to the left in a Hieven position and turned on the metering diaphragm accordingly.
  • the Hieven position of the pressure port 24 is connected to the working port 28 and the Ar-beitsanschluß 26 to the tank port 20, so that the terminal 16 of the hydraulic motor 4 acts as a supply port and the terminal 14 as a drain port.
  • the control pressure applied to the pilot port 62 is also reported via the two Wech-selventile 46 and 48 in the engine control line 50, so that the displacement of the hydraulic motor 4 is adjusted according to the control pressure on the Mo-gate valve 54.
  • the pressure applied to the engine control line 50 is also applied via the channel 100 to the control chamber of the brake release valve 94.
  • the brake release valve 54 is moved from its illustrated home position to its shift position, in which the terminal 92 is connected to the brake vent line 96. Accordingly, in the annular space 12 of the Hy drozylinders 10 is a pump pressure corresponding brake release pressure on - the braking device 8 is disengaged and the winch 2 driven according to the direction of rotation of the hydraulic motor 4 for lifting the hawser.
  • the pressure applied to the outlet of the shuttle valve 46 is reported via the further shuttle valve 48 in the engine control line 50 so that the engine control valve 54 is accordingly angesteu-ert for changing the intake volume; Furthermore, as in the manual control, the brake release valve 94 is brought into its switching position, so that the brake ventilation line 96 via the brake release valve 54, the brake pressure channel 90, the flow regulator 78, the return check valve 80 and the supply line 36 for releasing the brake with the Pressure line 19 is connected.
  • FIG. 3 shows the brake release pressure which occurs when using a remote control when a blank trunk is caught up by means of the winch 2.
  • the brake release pressure increases in a very short time to its desired maximum value (such as pump pressure), wherein after a very short settling a constant brake release pressure is applied.
  • This characteristic of the brake release pressure differs practically not from that in the control of the main valve 18 via the lever 66th
  • the response of the winch 2 can be improved even at low load pressures and very fast, sudden application of the control pressure by means of a remote control.
  • the brake release valve 94 is biased by a control spring in that position in which the annular space 12 is connected to the leakage line 88 or the tank line 21.
  • the switching point of the brake release valve 94 can be changed, if this control spring is designed with a device for changing the bias voltage.
  • a controller for a hydraulically operated consumer in particular a winch, in which a hydraulic drive of the consumer by means of a continuously adjustable main valve with a pump or a tank is connected.
  • the controller has to set the consumer a hydraulically operated braking device.
  • the main valve can be controlled by means of a manual pre-control or a remote control.
  • the release of the braking device via a brake release valve which is applied both when using a feedforward control and when controlled via the manually operated pilot control, the braking device with the same brake release pressure, the preference is tapped upstream of the main valve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

Die Erfindung betrifft eine Steuerung für einen hydraulisch betätigten Verbraucher, insbesondere eine Winde gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a controller for a hydraulically operated consumer, in particular a winch according to the preamble of claim 1.

Eine derartige Steuerung wird insbesondere bei der Ansteuerung von Winden zum Hieven und Fieren von Trossen eines Schiffes verwendet. Im nächstkommenden Stand der Technik WO 00/57067 Al ist eine Windensteuerung offenbart, bei der eine Winde zum Hieven/Fieren der Trosse über einen Hydromotor angetrieben wird. Dieser wird seinerseits über eine Verstellpumpe angetrieben, wobei die Druckmittelströmung von der Verstellpumpe zum Hydromotor und vom Hydromotor zu einem Rücklauf (Tank) über ein proportional verstellbares Hauptventil gesteuert wird. Dieses Hauptventil ist mit einer handbetätigten Vorsteuerung ausgeführt, über die die Betriebszustände "Hieven", "Fieren" und - optional - "Mooring" einstellbar sind.Such a control is used in particular in the control of winches for hoisting and fishing of hawsers of a ship. In the closest prior art WO 00/57067 Al a winch control is disclosed, in which a winch for hoisting / hauling the hawser is driven by a hydraulic motor. This is in turn driven by a variable displacement pump, wherein the pressure fluid flow from the variable displacement pump to the hydraulic motor and the hydraulic motor to a return (tank) is controlled via a proportionally adjustable main valve. This main valve is designed with a manually operated feedforward control via which the operating states "hovering", "Fieren" and - optionally - "Mooring" can be set.

Die bekannte Windensteuerung hat des weiteren einen Anschluß für eine Fernsteuerung, über die das Hauptventil auch bei unbetätigter Vorsteuerung ansteuerbar ist. In der Neutralstellung des Hauptventils, d.h. bei unbetätigter Winde wird deren Drehposition über eine hydraulisch betätigte Bremseinrichtung fixiert. Diese hat einen in Richtung Bremseingriff federvorgespannten Hydrozylinder. Das Belüften der Bremse erfolgt durch Druckbeaufschlagung eines entgegen der Feder wirksamen Druckraumes des Hydrozylinders.The known winch control further has a connection for a remote control, via which the main valve can be controlled even when uncontrolled pilot control. In the neutral position of the main valve, i. when the winch is unactuated whose rotational position is fixed by a hydraulically operated brake device. This has a spring-biased hydraulic cylinder in the direction of braking engagement. The brake is ventilated by pressurization of an effective against the spring pressure chamber of the hydraulic cylinder.

Bei dieser bekannten Konstruktion kann es beim Hieven einer Leertrosse (Lastdruck gegen Null) und schlagartigem Ansteuern des Hauptventils über die Fernsteuerung vorkommen, daß der am Hydrozylinder zum Belüften der Bremse anliegende Druck zwischen einem Maximalwert und Null schwingt. Ein derartiges Schwingungsverhalten des Bremslüftungsdruckes ist in Figur 1 dargestellt, auf die bereits jetzt Bezug genommen wird. Erstaunlicherweise tritt dieses Schwingen des Bremslüftungsdruckes nur bei Ansteuerung über die Fernsteuerung auf - bei einer Ansteuerung des Hauptventils über die handbetätigte Vorsteuerung konnten derartige Schwingungen nicht beobachtet werden.In this known construction, it can when Hieven a blank trunk (load pressure to zero) and abruptly Actuation of the main valve via the remote control happen that the pressure applied to the hydraulic cylinder for venting the brake between a maximum value and zero oscillates. Such a vibration behavior of the brake release pressure is shown in FIG. 1, to which reference is already made. Surprisingly, this oscillation of the brake release pressure occurs only when controlled by the remote control - with a control of the main valve on the manual feedforward such vibrations could not be observed.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine Steuerung für einen hydraulisch betätigten Verbraucher, insbesondere für eine Winde zu schaffen, bei der das Lüften einer der Winde zugeordneten Bremseinrichtung auch bei geringem Lastdruck im wesentlichen schwingungsfrei durchführbar ist.In contrast, the present invention seeks to provide a controller for a hydraulically operated consumer, in particular for a winch, in which the release of a brake device associated with the winch is carried out substantially vibration-free even at low load pressure.

Diese Aufgabe wird durch eine Steuerung mit den Merkmalen des Patentanspruches 1 gelöst.This object is achieved by a controller having the features of claim 1.

Erfindungsgemäß ist die Steuerung mit einem Bremslüftungsventil versehen, über den ein in Richtung einer Bremslüftung wirksamer Bremssteuerraum der Bremseinrichtung sowohl bei Ansteuerung des Hauptventils über die Fernsteuerung als auch über das Vorsteuergerät mit einem stromaufwärts des Hauptventils abgegriffenen Bremslüftungssteuerdruck beaufschlagbar ist.According to the invention, the control is provided with a brake release valve, by means of which a brake control chamber of the brake device which is active in the direction of a brake release can be acted upon by the brake control pressure picked off upstream of the main valve both when the main valve is actuated via the remote control and via the pilot control device.

Erfindungsgemäß erfolgt die Ansteuerung der Bremseinrichtung somit unabhängig vom Betriebsmodus (Fernsteuerung/Handbetätigung) über den gleichen Bremslüftungsdruck, der unabhängig ist vom Druckabfall am Hauptventil oder von der Abstimmung der Steuerkanten der Vorsteuerung und des Hauptventils ist.According to the invention, the control of the braking device is thus independent of the operating mode (remote control / manual operation) on the same brake release pressure, which is independent of the pressure drop at the main valve or by the vote of the control edges of the pilot control and the main valve.

Im Gegensatz zu dieser erfindungsgemäßen Lösung wurde der Bremslüftungsdruck bei der bekannten Lösung im Falle einer Ansteuerung über eine Fernsteuerung stromabwärts des Hauptventils abgegriffen - es zeigte sich überraschenderweise, daß die Schwingungen beim Abgreifen des Bremsdruckes stromaufwärts des Hauptventils nicht mehr auftreten.In contrast to this solution according to the invention, the brake release pressure was tapped in the case of a control via a remote control downstream of the main valve - it was surprisingly found that the vibrations no longer occur when tapping the brake pressure upstream of the main valve.

Der zum Betätigen des Bremslüftungsventils erforderliche Bremssteuerdruck entspricht bei der vorliegenden Erfindung dem Steuerdruck zum Ansteuern des Haupt-ventils. D.h. der über die Fernsteuerung oder die Vorsteuerung aufgebrachte Steuerdruck wird dann auch zum Umschalten des Bremslüftungsventils herangezogen.The required for actuating the brake release valve brake control pressure corresponds in the present invention, the control pressure for driving the main valve. That the applied via the remote control or pilot control pressure is then used to switch the brake release valve.

Dieses Bremslüftungsventil wird vorzugsweise als 3/2-Wegeventil ausgeführt, das in einer federvorgespannten Grundstellung den in Richtung Bremslüftung wirksamen Steuerraum der Bremseinrichtung entlastet und das durch den vorgenannten Bremssteuerdruck in eine Position umschaltbar ist, in der der Bremssteuerraum mit dem Bremslüftungsdruck beaufschlagt ist.This brake release valve is preferably designed as a 3/2-way valve, which relieves effective in the direction of brake release control chamber of the braking device in a spring-biased position and which can be switched by the aforementioned brake control pressure in a position in which the brake control chamber is acted upon by the brake release pressure.

Dieser Bremslüftungsdruck entspricht bei einem besonders bevorzugten Ausführungsbeispiel im wesentlichen dem über die Verstellpumpe aufgebrachten Pumpendruck.In a particularly preferred embodiment, this brake release pressure substantially corresponds to the pump pressure applied via the variable displacement pump.

Die Ansteuerung der einzelnen Elemente der Windensteuerung ist besonders ein-fach, wenn ein Steuerdruck zur Ansteuerung des als Hydromotor mit veränderlichen Schluckvermögen ausgeführten Antriebs ebenfalls dem Steuerdruck zur Betätigung des Bremslüftungsventils und des Hauptventils entspricht.The control of the individual elements of the winch control is particularly simple when a control pressure for controlling the drive designed as a hydraulic motor with variable absorption capacity also corresponds to the control pressure for actuating the brake release valve and the main valve.

Bei einer vorteilhaften Variante der Erfindung hat die Vorsteuerung ein per se bekanntes Wegeventil mit zumindest zwei Ausgangsanschlüssen, die über Steuerleitungen mit jeweils einem Steuerraum des Hauptventils verbunden sind. Der höhere an den Ausgangsanschlüssen anliegende oder über die Fernsteuerung aufgeschal-tete Steuerdruck wird über eine Wechselventilanordnung als Bremssteuerdruck und/oder als Steuerdruck zum Ansteuern des Hydromotors abgegriffen.In an advantageous variant of the invention, the pilot control has a per se known way valve at least two output terminals, which are connected via control lines, each with a control chamber of the main valve. The higher applied to the output terminals or via the remote control discrete control pressure is tapped via a shuttle valve assembly as a brake control pressure and / or as a control pressure for driving the hydraulic motor.

Der Grenzdruck, bei dem das Bremslüftungsventil zum Belüften der Bremseinrich-tung umgeschaltet wird, läßt sich über eine einstellbare Steuerfeder des Bremslüftungsventils an unterschiedliche Betriebsbedingungen anpassen.The limit pressure at which the brake release valve is switched over to ventilate the brake device can be adapted to different operating conditions via an adjustable control spring of the brake release valve.

Das Wegeventil der Vorsteuerung kann vorzugsweise in eine Fieren-/Hieven- und Mooringschaltposition verstellt werden, so daß im Handbetrieb alle drei Betriebszu-stände einstellbar sind, während per Fernbedienung nur die Betriebszustände "Hie-ven" und "Fieren" einstellbar sind.The directional control valve of the pilot control can be adjusted preferably in a Fieren- / Hieven- and Mooringschaltposition so that all three Betriebszu-conditions are adjustable in manual mode, while only the operating states "Hie-ven" and "Fieren" are adjustable by remote control.

Sonstige vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der weiteren Unteransprüche.Other advantageous developments of the invention are the subject of the other dependent claims.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand sche-matischer Zeichnungen näher erläutert. Es zeigen:

  • Figur 1 einen Bremsdruck in Abhängigkeit von der Zeit beim Hieven einer Leertrosse mit einer herkömmlichen Windensteuerung;
  • Figur 2 ein Schaltschema einer erfindungsgemäßen Windensteuerung mit Bremslüf-tungsventil und
  • Figur 3 den Bremsdruck in Abhängigkeit von der Zeit bei einer erfindungsgemäßen Windensteuerung.
In the following, a preferred embodiment of the invention will be explained in more detail with reference to sche-matic drawings. Show it:
  • FIG. 1 shows a brake pressure as a function of time when lifting a dummy haul with a conventional winch control;
  • Figure 2 is a circuit diagram of a winch control according to the invention with brake release valve and
  • Figure 3 shows the brake pressure as a function of time in a winch control according to the invention.

Figur 2 zeigt das Schaltbild einer Windensteuerung, über die eine Winde zum Hieven oder Fieren einer Trosse ansteuerbar ist. Das Grundkonzept der in Figur 2 dargestellten Windensteuerung entspricht der in der Druckschrift WO 00/57067 A1 be-schriebenen Windensteuerung, so daß im folgenden nur die zum Verständnis we-sentlichen Bauelemente beschrieben werden und im übrigen auf die Offenbarung der vorgenannten Druckschrift verwiesen wird.Figure 2 shows the circuit diagram of a winch control, via which a winch for hoisting or Fieren a hawser can be controlled. The basic concept of the winch control illustrated in FIG. 2 corresponds to the winch control described in the document WO 00/57067 A1, so that only the components essential for understanding will be described below and, moreover, reference is made to the disclosure of the aforementioned publication.

Der Antrieb der Winde 2 erfolgt über einen Hydromotor 4 mit veränderlichen Schluckvolumen, der über ein Getriebe 6 mit der Winde 2 verbunden ist. Diese läßt sich über eine Bremseinrichtung 8 in einer vorbestimmten Drehposition zum Halten der Trosse festlegen. Erfindungsgemäß hat diese Bremseinrichtung 8 einen Hydro-zylinder 10, der über eine Feder in Richtung Bremseingriff vorgespannt ist und durch Druckbeaufschlagung eines Ringraumes 12 in Richtung Bremslüftung mit Druckmittel beaufschlagt werden kann.The drive of the winch 2 via a hydraulic motor 4 with variable displacement, which is connected via a gear 6 to the winch 2. This can be defined via a braking device 8 in a predetermined rotational position for holding the hawser. According to the invention, this braking device 8 has a hydraulic cylinder 10, which is biased by a spring in the direction of braking engagement and can be pressurized by pressurizing an annular space 12 in the direction of brake release with pressure medium.

Die Verbindung der Anschlüsse 14, 16 des Hydromotors 4 mit einer den Druck einer Verstellpumpe (nicht dargestellt) führenden Druckleitung 19 bzw. einer Rücklauf- oder Tankleitung 21 erfolgt über ein vorgesteuertes Hauptventil 18, dessen Ventil-schieber aus seiner federvorgespannten Grundposition nach rechts (Figur 2) in Richtung "Hieven" und nach links in Richtung "Fieren" stetig verstellbar ist. Dieses Hauptventil 18 hat zwei Tankanschlüsse 20, 22, einen Druckanschluß 24, einen mit dem Anschluß 14 des Hydromotors verbundenen Arbeitsanschluß 26, einen mit dem Anschluß 16 des Hydromotors verbundenen Arbeitsanschluß 28 und einen Steuer-anschluß 30.The connection of the terminals 14, 16 of the hydraulic motor 4 with a pressure of a variable (not shown) pressure line 19 and a return or tank line 21 via a pilot-operated main valve 18, the valve slide from its spring-biased home position to the right (FIG 2) in the direction of "Hieven" and to the left in the direction of "Fieren" is continuously adjustable. This main valve 18 has two tank connections 20, 22, a pressure connection 24, a working connection 26 connected to the connection 14 of the hydraulic motor, a working connection 28 connected to the connection 16 of the hydraulic motor and a control connection 30.

Der Tankanschluß 22 ist über ein Ablaufventil 32 mit der Tankleitung 21 verbunden. Dieses Ablaufventil 32 wird in Schließrichtung von der Kraft einer Feder und einem in einer Steuerleitung 34 anliegenden Steuerdruck und in Öffnungsrichtung von dem am Anschluß 14 des Hydromotors anliegenden Druck beaufschlagt.The tank connection 22 is connected via a drain valve 32 to the tank line 21. This drain valve 32 is acted upon in the closing direction by the force of a spring and a voltage applied in a control line 34 control pressure and in the opening direction of the pressure applied to the terminal 14 of the hydraulic motor.

In einer den Druckanschluß 24 mit der Druckleitung 19 verbindenden Zulaufleitung 36 ist eine Druckwaage 38 vorgesehen, die in Schließrichtung von einem Druck stromaufwärts einer durch das Hauptventil 18 ausgebildeten Zumeßblende und in Öffnungsrichtung vom Druck am Steueranschluß 30 beaufschlagt ist - dieser Druck entspricht dem Druck stromabwärts der Zumeßblende.In a pressure connection 24 to the pressure line 19 connecting feed line 36, a pressure compensator 38 is provided which is acted upon in the closing direction by a pressure upstream of a metering diaphragm formed by the main valve 18 and in the opening direction of the pressure at the control terminal 30 - this pressure corresponds to the pressure downstream of metering diaphragm.

Die beiden Steuerräume des Hauptventils 18 sind über Steuerkanäle 40, 42 mit Aus-gangsanschlüssen von Wechselventilen 44, 46 verbunden, wobei diese Ausgangs-anschlüsse über ein drittes Wechselventil 48 und eine Motorsteuerleitung 50 mit ei-nem Steueranschluß 52 des Hydromotors 4 verbunden sind. Über den in der Motorsteuerleitung 50 anliegenden Steuerdruck kann ein Motorregelventil 54 des Hydro-motors 4 zur Veränderung des Schluckvolumens angesteuert werden.The two control chambers of the main valve 18 are connected via control channels 40, 42 with Ausgangsanschlüssen of shuttle valves 44, 46, said output ports are connected via a third shuttle valve 48 and a motor control line 50 with egg nem control terminal 52 of the hydraulic motor 4. About the voltage applied in the engine control line 50 control pressure, a motor control valve 54 of the hydraulic motor 4 are controlled to change the absorption volume.

Die Eingangsanschlüsse der beiden Wechselventils 44, 48 sind mit zwei Fernsteuer-anschlüssen 56 bzw. 58 und mit zwei Vorsteueranschlüssen 60, 62 eines Wegeven-tils 64 verbunden. Dieses läßt sich aus seiner federvorgespannten Grundposition mittels eines Stellhebels 66 in die Schaltpositionen "Fieren", "Hieven" und "Mooring" verschieben.The input terminals of the two shuttle valves 44, 48 are connected to two remote control terminals 56 and 58, respectively, and to two pilot ports 60, 62 of a directional valve 64. This can be moved from its spring-biased home position by means of a control lever 66 in the switch positions "Fieren", "Hieven" and "Mooring".

Das Wegeventil 64 hat des weiteren einen Eingangsanschluß 70 und einen Aus-gangsanschluß 72. Der Eingangsanschluß 70 ist über ein Druckreduzierventil 74 und einen Druckkanal 76 mit der Zulaufleitung 36 verbunden. In dem Druckkanal 76 sind ein Mengenregler 78, ein in Richtung zum Druckreduzierventil 74 öffnendes Rück-schlagventil 80 und ein weiteres Druckreduzierventil 82 vorgesehen. Letzteres ist in Öffnungsrichtung von dem Druck am Ausgang des Druckreduzierventils 74 und in Schließrichtung von der Kraft einer Feder beaufschlagt. Das Druckreduzierventil 74 wird über eine Steuerkurve 84 des Stellhebels 66 verstellt, wobei in einer Neutralpo-sition ein Ausgangsanschluß des Druckreduzierventils 74 über einen Leckagekanal 86 mit einer Leckageleitung 88 verbunden ist.The directional control valve 64 further has an input port 70 and an output port 72. The input port 70 is connected via a pressure reducing valve 74 and a Pressure channel 76 connected to the supply line 36. In the pressure channel 76, a flow regulator 78, a direction of the pressure reducing valve 74 opening check valve 80 and a further pressure reducing valve 82 are provided. The latter is acted upon in the opening direction by the pressure at the outlet of the pressure reducing valve 74 and in the closing direction by the force of a spring. The pressure reducing valve 74 is adjusted via a control cam 84 of the actuating lever 66, wherein in a neutral position an output terminal of the pressure reducing valve 74 is connected via a leakage channel 86 with a leakage line 88.

Im Bereich zwischen dem Mengenregler 78 und dem weiteren Druckreduzierventil 82 zweigt ein Bremsdruckkanal 90 ab, der zu einem Anschluß 92 eines Bremslüftungsventils 94 geführt ist. Dieses ist als 3/2-Wegeventil ausgeführt, das in seiner feder-vorgespannten Grundposition den Anschluß 92 absperrt und eine mit dem Ringraum 12 verbundene Bremslüftungsleitung 96 über eine Entlastungsleitung 98 mit der Leckageleitung 88 oder der Tankleitung 21 verbindet. Der in Gegenrichtung zur Fe-der des Bremslüftungsventils 94 wirksame Steuerraum wird über einen Kanal 100 mit dem Druck in der Motorsteuerleitung 50 beaufschlagt, über den auch des Motorre-gelventil 54 angesteuert ist und der dem größeren der an den beiden Wechselventi-len 44 und 48 anliegenden Drücke entspricht.In the area between the flow regulator 78 and the further pressure reducing valve 82 branches off a brake pressure channel 90, which is guided to a terminal 92 of a brake release valve 94. This is designed as a 3/2-way valve that shuts off the terminal 92 in its spring-biased position and connects a connected to the annulus 12 brake vent line 96 via a discharge line 98 with the leakage line 88 or the tank line 21. The effective in the opposite direction to the feet of the brake release valve 94 control chamber is acted upon via a channel 100 with the pressure in the engine control line 50, via which also the engine control valve 54 is controlled and the larger of the two Wechselventi-len 44 and 48th corresponding pressures.

Wie in Figur 2 angedeutet, kann das Wegeventil 64 auch ohne die Schaltpositon "Mooring" ausgeführt sein. Bei einer derartigen Variante würden dann auch der Mengenregler 78 und das Rückschlagventil 80 wegfallen.As indicated in Figure 2, the directional control valve 64 may be executed without the switching position "Mooring". In such a variant, the flow regulator 78 and the check valve 80 would be omitted.

Bei einer weiteren Variante der Windensteuerung könnte anstelle des extern verlau-fenden Leckagekanals 86 auch ein interner Leckagekanal 86' verwendet werden.In a further variant of the winch control, instead of the externally extending leakage channel 86, an internal leakage channel 86 'could also be used.

Zum Hieven der Trosse wird der Stellhebel 66 nach rechts in den schraffierten Hie-ven-Bereich verschwenkt und entsprechend der Kolben des Wegeventils 64 nach rechts verschoben. Gleichzeitig wird über die Steuerkurve 84 das Druckreduzierventil 74 betätigt, so daß der Eingangsanschluß 70 über das weitere Druckreduzierventil 82 mit dem Druckkanal 76 und damit mit der den Pumpendruck führenden Druckleitung 19 verbunden ist. In der Hieven-Position ist der druckbeaufschlagte Einganganschluß 70 mit dem Vorsteueranschluß 62 verbunden, während der andere Vorsteueran-schluß 60 mit dem Ausgangsanschluß 72 und damit dem Leckagekanal 86 verbun-den ist. Der dem Druck am Eingangsanschluß 70 entsprechende Steuerdruck wird über das Wechselventil 46 und den Steuerkanal 42 abgegriffen und liegt an dem in Figur 2 rechten Steuerraum des Hauptventils 18 an - dies wird entsprechend des anliegenden Steuerdruckes aus der dargestellten Grundposition nach links in eine Hieven-Position verfahren und entsprechend die Zumeßblende aufgesteuert. In der Hieven-Position ist der Druckanschluß 24 mit dem Arbeitsanschluß 28 sowie der Ar-beitsanschluß 26 mit dem Tankanschluß 20 verbunden, so daß der Anschluß 16 des Hydromotors 4 als Zulaufanschluß und der Anschluß 14 als Ablaufanschluß wirkt. Der am Vorsteueranschluß 62 anliegende Steuerdruck wird über die beiden Wech-selventile 46 und 48 auch in die Motorsteuerleitung 50 gemeldet, so daß das Schluckvolumen des Hydromotors 4 entsprechend des Steuerdruckes über das Mo-torregelventil 54 verstellt wird. Der in der Motorsteuerleitung 50 anliegende Druck liegt über den Kanal 100 auch am Steuerraum des Bremslüftungsventils 94 an. Durch diesen Steuerdruck wird das Bremslüftungsventil 54 aus seiner dargestellten Grundposition in seine Schaltposition verschoben, in der der Anschluß 92 mit der Bremslüftungsleitung 96 verbunden ist. Entsprechend liegt im Ringraum 12 des Hy-drozylinders 10 ein dem Pumpendruck entsprechender Bremslüftungsdruck an - die Bremseinrichtung 8 wird außer Eingriff gebracht und die Winde 2 entsprechend der Drehrichtung des Hydromotors 4 zum Hieven der Trosse angesteuert.To hoist the hawser the adjusting lever 66 is pivoted to the right in the hatched Hie-ven area and moved according to the piston of the directional control valve 64 to the right. At the same time the pressure reducing valve 74 is actuated via the control cam 84, so that the input terminal 70 is connected via the further pressure reducing valve 82 to the pressure channel 76 and thus to the pressure line leading to the pump pressure 19. In the Hieven position of the pressurized input terminal 70 is connected to the pilot port 62, while the other pilot port 60 is connected to the output terminal 72 and thus the leakage channel 86 is the verbun. The pressure corresponding to the input port 70 corresponding control pressure is tapped via the shuttle valve 46 and the control channel 42 and is located on the right in Figure 2 control chamber of the main valve 18 - this is moved according to the applied control pressure from the illustrated basic position to the left in a Hieven position and turned on the metering diaphragm accordingly. In the Hieven position of the pressure port 24 is connected to the working port 28 and the Ar-beitsanschluß 26 to the tank port 20, so that the terminal 16 of the hydraulic motor 4 acts as a supply port and the terminal 14 as a drain port. The control pressure applied to the pilot port 62 is also reported via the two Wech-selventile 46 and 48 in the engine control line 50, so that the displacement of the hydraulic motor 4 is adjusted according to the control pressure on the Mo-gate valve 54. The pressure applied to the engine control line 50 is also applied via the channel 100 to the control chamber of the brake release valve 94. By this control pressure, the brake release valve 54 is moved from its illustrated home position to its shift position, in which the terminal 92 is connected to the brake vent line 96. Accordingly, in the annular space 12 of the Hy drozylinders 10 is a pump pressure corresponding brake release pressure on - the braking device 8 is disengaged and the winch 2 driven according to the direction of rotation of the hydraulic motor 4 for lifting the hawser.

Bei Verwendung einer Fernsteuerung verbleibt der Stellhebel 66 in seiner darge-stellten Grundposition. Über das Steuergerät der Fernsteuerung werden die beiden Fernsteueranschlüsse 56, 58 mit einer Steuerdruckdifferenz beaufschlagt, wobei der höhere Steuerdruck über die Wechselventile 44, 46 und 48 zur Ansteuerung des Hauptventils 18, des Motorregelventils 54 und des Bremslüftungsventils 94 abgegrif-fen wird. Zum Hieven der Trosse mittels der Fernsteuerung liegt dann entsprechend am Fernsteueranschluß 58 ein höherer Steuerdruck an, der über das Wechselventil 46 und ein Steuerkanal 52 in den rechten Steuerraum des Hauptventils 18 gemeldet wird - der Ventilschieber des Hauptventils 18 wird in der vorbeschriebenen Weise nach links in eine Hieven-Position verschoben und der Hydromotor entsprechend angesteuert. Der am Ausgang des Wechselventils 46 anliegende Druck wird über das weitere Wechselventil 48 in die Motorsteuerleitung 50 gemeldet, so daß das Motorregelventil 54 zur Veränderung des Schluckvolumens entsprechend angesteu-ert wird; des weiteren wird - wie bei der Handsteuerung - das Bremslüftungsventil 94 in seine Schaltposition gebracht, so daß die Bremslüftungsleitung 96 über das Bremslüftungsventil 54, den Bremsdruckkanal 90, den Mengenregler 78, das Rück-schlagventil 80 und die Zulaufleitung 36 zum Lüften der Bremse mit der Druckleitung 19 verbunden ist.When using a remote control of the lever 66 remains in its illustrated basic position. About the controller of the remote control, the two remote control terminals 56, 58 are acted upon by a control pressure difference, wherein the higher control pressure on the shuttle valves 44, 46 and 48 for driving the main valve 18, the engine control valve 54 and the brake release valve 94 is gripped abge. To Hieven the hawser by means of the remote control is then correspondingly at the remote control terminal 58 to a higher control pressure, which is reported via the shuttle valve 46 and a control channel 52 in the right control chamber of the main valve 18 - the valve spool of the main valve 18 is in the manner described above left in shifted a Hieven position and the hydraulic motor driven accordingly. The pressure applied to the outlet of the shuttle valve 46 is reported via the further shuttle valve 48 in the engine control line 50 so that the engine control valve 54 is accordingly angesteu-ert for changing the intake volume; Furthermore, as in the manual control, the brake release valve 94 is brought into its switching position, so that the brake ventilation line 96 via the brake release valve 54, the brake pressure channel 90, the flow regulator 78, the return check valve 80 and the supply line 36 for releasing the brake with the Pressure line 19 is connected.

Die Ansteuerung der Betreibszustänfe "Fieren" und "Mooring" erfolgt entsprechend.The activation of the operating states "Fieren" and "Mooring" takes place accordingly.

Durch die Verwendung des Bremslüftungsventils 94, über das sowohl bei Verwen-dung einer Fernsteuerung als auch bei Handbetätigung stets der gleiche Bremslüf-tungsdruck aufgeschaltet wird, können überraschenderweise die eingangs beschrie-benen Schwankungen beim Hieven einer Leertrosse ausgeschlossen oder zumin-dest auf ein akzeptables Maß abgesenkt werden.Through the use of the brake release valve 94, both when using a remote control as Even if the same brake release pressure is always switched on by manual operation, surprisingly, the fluctuations described above when lifting a dummy tube can be excluded or at least reduced to an acceptable level.

Figur 3 zeigt den sich bei Verwendung einer Fernsteuerung einstellenden Bremslüf-tungsdruck, wenn eine Leertrosse mittels der Winde 2 eingeholt wird. Bei Aufschalten des vorbeschriebenen Steuerdruckes mittels der Fernsteuerung steigt der Bremslüf-tungsdruck in sehr kurzer Zeit auf seinen gewünschten Maximalwert (etwa Pumpen-druck) an, wobei nach einem sehr kurzen Einschwingen ein konstanter Bremslüf-tungsdruck anliegt. Diese Kennlinie des Bremslüftungsdruckes unterscheidet sich praktisch nicht von derjenigen bei der Ansteuerung des Hauptventils 18 über den Stellhebel 66.FIG. 3 shows the brake release pressure which occurs when using a remote control when a blank trunk is caught up by means of the winch 2. When switching on the above-described control pressure by means of the remote control, the brake release pressure increases in a very short time to its desired maximum value (such as pump pressure), wherein after a very short settling a constant brake release pressure is applied. This characteristic of the brake release pressure differs practically not from that in the control of the main valve 18 via the lever 66th

Durch die erfindungsgemäße Lösung läßt sich das Ansprechverhalten der Winde 2 auch bei geringen Lastdrücken und sehr schnellem, schlagartigen Aufbringen des Steuerdruckes mittels einer Fernsteuerung verbessern..The solution according to the invention, the response of the winch 2 can be improved even at low load pressures and very fast, sudden application of the control pressure by means of a remote control.

Bei dem in Figur 2 dargestellten Ausführungsbeispiel ist das Bremslüftungsventil 94 über eine Steuerfeder in diejenige Position vorgespannt, in der der Ringraum 12 mit der Leckageleitung 88 oder der Tankleitung 21 verbunden ist. Der Schaltpunkt des Bremslüftungsventils 94 läßt sich verändern, wenn diese Steuerfeder mit einer Einrichtung zur Veränderung der Vorspannung ausgeführt ist.In the embodiment shown in Figure 2, the brake release valve 94 is biased by a control spring in that position in which the annular space 12 is connected to the leakage line 88 or the tank line 21. The switching point of the brake release valve 94 can be changed, if this control spring is designed with a device for changing the bias voltage.

Offenbart ist eine Steuerung für einen hydraulisch betätigten Verbraucher, insbeson-dere eine Winde, bei der ein hydraulischer Antrieb des Verbrauchers mittels eines stetig verstellbaren Hauptventils mit einer Pumpe oder einem Tank verbindbar ist. Die Steuerung hat zur Festlegung des Verbrauchers eine hydraulisch betätigte Bremseinrichtung. Das Hauptventil läßt sich mittels einer handbetätigten Vorsteue-rung oder einer Fernsteuerung ansteuern. Erfindungsgemäß erfolgt das Lüften der Bremseinrichtung über ein Bremslüftungsventil, das sowohl bei Verwendung einer Vorsteuerung als auch bei Ansteuerung über die handbetätigte Vorsteuerung, die Bremseinrichtung mit dem gleichen Bremslüftungsdruck beaufschlagt, der vorzugs-weise stromaufwärts des Hauptventils abgegriffen wird.Disclosed is a controller for a hydraulically operated consumer, in particular a winch, in which a hydraulic drive of the consumer by means of a continuously adjustable main valve with a pump or a tank is connected. The controller has to set the consumer a hydraulically operated braking device. The main valve can be controlled by means of a manual pre-control or a remote control. According to the invention, the release of the braking device via a brake release valve, which is applied both when using a feedforward control and when controlled via the manually operated pilot control, the braking device with the same brake release pressure, the preference is tapped upstream of the main valve.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

22
Windewinch
44
Hydromotorhydraulic motor
66
Getriebetransmission
88th
Bremseinrichtungbraking means
1010
Hydrozylinderhydraulic cylinders
1212
Ringraumannulus
1414
Anschlussconnection
1616
Anschlussconnection
1818
Hauptventilmain valve
1919
Druckleitungpressure line
2020
Tankanschlußtank connection
2121
Tankleitungtank line
2222
Tankanschlußtank connection
2424
Druckanschlußpressure connection
2626
Arbeitsanschlussworking port
2828
Arbeitsanschlussworking port
3030
Steueranschlußcontrol terminal
3232
Ablaufventildrain valve
3434
Steuerleitungcontrol line
3636
Zulaufleitungsupply line
3838
Druckwaagepressure compensator
4040
Steuerkanalcontrol channel
4242
Steuerkanalcontrol channel
4444
Wechselventilshuttle valve
4646
Wechselventilshuttle valve
4848
drittes Wechselventilthird shuttle valve
5050
MotorsteuerleitungMotor control line
5252
Steueranschlußcontrol terminal
5454
MotorregelventilMotorized control valve
5656
FernsteueranschlussRemote control port
5858
FernsteueranschlussRemote control port
6060
Vorsteueranschlusspilot port
6262
Vorsteueranschlusspilot port
6464
Wegeventilway valve
6666
Stellhebellever
7070
Eingangsanschlußinput terminal
7272
Ausgangsanschlußoutput terminal
7474
DruckreduzierventilPressure reducing valve
7676
Druckkanalpressure channel
7878
Mengenreglerflow regulator
8080
Rückschlagventilcheck valve
8282
weiteres Druckreduzierventilfurther pressure reducing valve
8484
Steuerkurvecam
8686
Leckagekanalleakage channel
8888
Leckageleitungleakage line
9090
BremsdruckkanalBrake pressure channel
9292
AnschlußConnection
9494
BremslüftungsventilBrake release valve
9696
BremslüftungsleitungBrake release line
9898
Entlastungsleitungrelief line
100100
Kanalchannel

Claims (7)

  1. Control for a hydraulically actuated consumer, especially a winch, having a pump for supplying a drive (4) of the consumer (2) with pressure medium, a main valve (18) for controlling the flow of pressure medium to or from the drive (4), and a hydraulically operated brake device (8) for the consumer (2), there being associated with the main valve (18) a pilot control (64) which is adjustable by means of a handle (66) and by means of which control chambers of the main valve (18) can be acted upon by a control pressure, and having a remote control by means of which, as an alternative to the pilot control (64), the main.valve (18) can be actuated, a brake release valve (94) being provided by means of which a brake control chamber (12) of the brake device (8), which chamber acts in the direction towards brake release, can be acted upon by a brake release pressure - which is preferably tapped upstream of the main valve (18) - both when the main valve (18) is actuated by means of the remote control and when it is actuated by means of the pilot control (64), characterised in that the brake release valve (94), for the purpose of brake release, can be operated by means of a brake control pressure which corresponds to the control pressure for actuating the main valve (18).
  2. Control according to patent claim 1, wherein the brake release valve is a 3/2-way valve (94) which, in a spring-biased basic position, removes pressure from the brake control chamber (12) and which can be switched by the brake control pressure into a position in which the brake control chamber (12) is acted upon by the brake release pressure.
  3. Control according to either of the preceding patent claims, wherein the brake release pressure corresponds approximately to the pump pressure.
  4. Control according to any one of the preceding patent claims, wherein the brake control pressure corresponds to the control pressure for actuating the drive which is in the form of a hydraulic motor (4) having a variable capacity.
  5. Control according to any one of the preceding patent claims, wherein the pilot control has a directional control valve (64) having at least two pilot control connections (60, 62) which are each connected to a respective control chamber of the main valve (18) by way of control ducts (40, 42), the higher control pressure present at the pilot control connections (60, 62) or applied by means of the remote control being tappable as brake control pressure by means of a shuttle valve arrangement (44, 46, 48).
  6. Control according to any one of the preceding patent claims, wherein a control spring of the brake release valve is in an adjustable form.
  7. Control according to patent claim 5, wherein the directional control valve (64) can be displaced into a veering, heaving and optionally a mooring switching position by means of an adjusting lever (66).
EP03704292A 2002-03-22 2003-02-04 Control Expired - Fee Related EP1487732B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10213010A DE10213010A1 (en) 2002-03-22 2002-03-22 control
DE10213010 2002-03-22
PCT/DE2003/000312 WO2003080496A1 (en) 2002-03-22 2003-02-04 Control

Publications (2)

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EP1487732A1 EP1487732A1 (en) 2004-12-22
EP1487732B1 true EP1487732B1 (en) 2006-07-26

Family

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EP03704292A Expired - Fee Related EP1487732B1 (en) 2002-03-22 2003-02-04 Control

Country Status (6)

Country Link
EP (1) EP1487732B1 (en)
JP (1) JP2005520998A (en)
KR (1) KR20050002883A (en)
DE (2) DE10213010A1 (en)
NO (1) NO20043574L (en)
WO (1) WO2003080496A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533267B1 (en) * 2003-11-20 2006-08-30 OIL CONTROL S.p.A. A brake control device for winches activated by hydraulic motors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD131923A1 (en) * 1977-07-05 1978-08-09 Peter Prusseit CONTROL DEVICE FOR WIND WORKS WITH HYDRAULIC DRIVE
US4218883A (en) * 1978-08-18 1980-08-26 A/S Bergens Mekaniske Verksteder Hydraulic system for operation of two winches
NO175202C (en) * 1992-02-13 1994-09-21 Vestdavit As Hydraulic winch system
SE9302347L (en) * 1993-07-07 1994-10-03 Voac Hydraulics Boraas Ab Controls for a hydraulic motor
JPH115693A (en) * 1997-06-16 1999-01-12 Kobe Steel Ltd Hydraulic winch unit
DE19913276A1 (en) * 1999-03-24 2000-09-28 Mannesmann Rexroth Ag Hydraulic pilot control

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DE50304364D1 (en) 2006-09-07
WO2003080496A1 (en) 2003-10-02
NO20043574L (en) 2004-09-20
KR20050002883A (en) 2005-01-10
DE10213010A1 (en) 2003-10-02
EP1487732A1 (en) 2004-12-22
JP2005520998A (en) 2005-07-14

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