DE1209387B - Drive unit for shut-off devices, in particular gate valves on tankers - Google Patents

Drive unit for shut-off devices, in particular gate valves on tankers

Info

Publication number
DE1209387B
DE1209387B DEV21473A DEV0021473A DE1209387B DE 1209387 B DE1209387 B DE 1209387B DE V21473 A DEV21473 A DE V21473A DE V0021473 A DEV0021473 A DE V0021473A DE 1209387 B DE1209387 B DE 1209387B
Authority
DE
Germany
Prior art keywords
shut
drive unit
valve
control valve
cam
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.)
Pending
Application number
DEV21473A
Other languages
German (de)
Inventor
Hugo Ebersold
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.)
Vereinigte Armaturen-Gesellschaft Mbh
VAG GmbH
Original Assignee
Vereinigte Armaturen-Gesellschaft Mbh
Vereinigte Armaturen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DEV20478A priority Critical patent/DE1200087B/en
Application filed by Vereinigte Armaturen-Gesellschaft Mbh, Vereinigte Armaturen GmbH filed Critical Vereinigte Armaturen-Gesellschaft Mbh
Priority to DEV21473A priority patent/DE1209387B/en
Priority to FI73262A priority patent/FI40670B/fi
Priority to GB1383662A priority patent/GB971009A/en
Priority to BE616279A priority patent/BE616279A/en
Publication of DE1209387B publication Critical patent/DE1209387B/en
Pending legal-status Critical Current

Links

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/46—Mechanical actuating means for remote operation
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/31505—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/411—Flow control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41572—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and an output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/47—Flow control in one direction only
    • F15B2211/473—Flow control in one direction only without restriction in the reverse direction
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/615—Filtering means
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

Antriebseinheit von Absperreinrichtungen, insbesondere Schiebern auf Tankschiffen Zusatz zur Anmeldung: V 20478 XII/47 g -Auslegeschrift 1200 087 Die Erfindung bezieht sich auf eine fernsteuerbare, druckmittelbetätigte Antriebseinheit für die Spindel von Absperreinrichtungen, insbesondere Schiebern auf Tankschiffen, mit einem wahlweise in beiden Drehrichtungen antreibbaren hydraulischen Rotationsmotor, dessen Endstellung von einem sich in Abhängigkeit von der Stellung des Verschlußstückes bewegenden Nocken durch Schließen eines in der Antriebseinheit angeordneten Steuerventils für die Zuleitung gesteuert wird.Drive unit of shut-off devices, in particular slides Tanker ships addendum to registration: V 20478 XII / 47 g -Auslegeschrift 1200 087 Die The invention relates to a remotely controllable, pressure medium-operated drive unit for the spindle of shut-off devices, especially gate valves on tankers, with a hydraulic rotary motor that can be driven in either direction of rotation, its end position of a depending on the position of the closure piece moving cam by closing a control valve arranged in the drive unit for the supply line is controlled.

In der Hauptpatentanmeldung wird die Fernsteuerbarkeit dadurch erreicht, daß das Steuerventil durch ein Rückschlagventil überbrückt ist, so daß der Rotationsmotor bei Umkehrung des Druckmittelstroms sofort in umgekehrter Richtung anfahren kann. Ferner ist bei der Hauptpatentanmeldung der Nocken innerhalb der Antriebseinheit angeordnet, und er erhält seine Bewegung unmittelbar vom Antriebsmotor. Dadurch kann ein und dieselbe Antriebseinheit an jede Absperreinrichtung angeschlossen werden, ohne daß an der Absperreinrichtung selbst Änderungen vorgenommen zu werden brauchen. Schließlich ist bei der Hauptpatentanmeldung vorgesehen, daß die Stellung des Nockens relativ zum Betätigungsglied des Steuerventils einstellbar ist. Dadurch kann die Antriebseinheit in jedem Anwendungsfall genauso eingestellt werden, daß bei Betätigung des Steuerventils durch den Nocken eine genau festgelegte Stellung der Absperreinrichtung, beispielsweise die volle Schließstellung oder die volle Offenstellung erreicht wird und so eine Fernsteuerung gewährleistet ist.In the main patent application, remote control is achieved by that the control valve is bridged by a check valve, so that the rotary motor can start immediately in the opposite direction when the pressure medium flow is reversed. Furthermore, in the main patent application, the cam is within the drive unit arranged, and it receives its movement directly from the drive motor. Through this one and the same drive unit can be connected to each shut-off device, without having to make changes to the shut-off device itself. Finally, it is provided in the main patent application that the position of the cam is adjustable relative to the actuator of the control valve. This allows the Drive unit can be set in the same way in each application that when actuated of the control valve through the cam a precisely defined position of the shut-off device, for example, the fully closed position or the fully open position is reached and so remote control is guaranteed.

Die Antriebseinheit gemäß der Hauptpatentanmeldung vermeidet den Nachteil einer bekannten hydraulisch betätigten Antriebseinheit, die nicht fernsteuerbar ist, da für die endgültige Einstellung immer erst noch ein Handrad gedreht werden muß, und die außerdem nicht an jede beliebige Absperreinrichtung ohne Anpassung an deren Betätigungsglieder angesetzt werden kann. Wenn man jedoch sowohl die Offenstellung als auch die Schließstellung durch je einen auf ein Steuerventil einwirkenden Nocken steuert, nimmt in manchen Fällen die Baueinheit noch infolge dieser Nockensteuerung zu viel Raum ein. Während ferner die Einstellung der Offenstellung eines Absperrschiebers im allgemeinen nicht so kritisch ist, solange der Schieber nicht gegen das Schiebergehäuse anstößt, und eine spezielle Anpassung der Antriebseinheit an die Absperreinrichtung in manchen Fällen sogar gänzlich unterbleiben kann, besteht bei der Einstellung der Schließlage die Gefahr, daß durch Fehlbedienung oder durch unter äußeren Einflüssen erfolgende allmähliche Verstellung eine falsche Einstellung der Schließlage zustande kommt, die entweder nicht zu einem sicheren Schließen des Absperrventils oder zu einem zu großen Schließdruck führt, der sogar ein Festfressen zur Folge haben kann.The drive unit according to the main patent application avoids the disadvantage a known hydraulically operated drive unit that is not remotely controllable is because a handwheel still needs to be turned for the final setting must, and also not to any shut-off device without adaptation can be attached to the actuators. However, if you have both the open position as well as the closed position by a cam acting on a control valve controls, in some cases still takes the assembly as a result of this cam control too much space. While also setting the open position of a gate valve is generally not that critical as long as the slide is not against the slide body and a special adaptation of the drive unit to the shut-off device in some cases it can even be omitted entirely, consists in the recruitment the closed position there is a risk of incorrect operation or external influences subsequent gradual adjustment results in an incorrect setting of the closed position comes that either does not result in a safe closing of the shut-off valve or too too high a closing pressure, which can even result in seizure.

Schließlich ist es bekannt, daß Absperrschieber zum Schließen eine geringere Kraft als zum Öffnen benötigen; aus den vorstehend genannten Gründen hat man daher auch bisher schon die Schließkraft gegenüber der Öffnungskraft herabgesetzt. Die zu diesem Zweck verwendeten bekannten Vorrichtungen sind jedoch relativ kompliziert, störanfällig und wenig stabil oder nur auf einen speziellen Zweck zugeschnitten. So ist es im speziellen Fall eines Kolbenantriebs bekannt, den Kolbendruck beim Erreichen der Schließstellung durch Zwischenschaltung einer Feder zwischen Kolbenstange und Verschlußteil in Art eines Puffers herabzumindern und durch Spiel zwischen dem Kolben und dem Verschlußteil gleichzeitig Schwankungen des Betätigungsdruckes ausgleichen zu können. Diese Lösung ist jedoch nicht ohne weiteres auf einen Schieberantrieb mittels eines Rotationsmotors zu übertragen.Finally, it is known that a gate valve to close a require less force than to open; for the reasons stated above therefore, the closing force has already been reduced compared to the opening force. The known devices used for this purpose are, however, relatively complicated, prone to failure and not very stable or only tailored for a special purpose. So it is known in the special case of a piston drive, the piston pressure when Reaching the closed position by interposing a spring between the piston rod and to reduce closure part in the manner of a buffer and by play between the The piston and the closure part compensate for fluctuations in the actuation pressure at the same time to be able to. However, this solution is not readily based on a slide actuator to be transmitted by means of a rotary motor.

Der Erfindung liegt daher die Aufgabe zugrunde, eine fernsteuerbare Antriebseinheit gemäß der Hauptpatentanmeldung so weiterzubild.n, daß durch den Aufbau der Antriebseinheit von vornherein gewährleistet ist, daß die Schließkraft in der gewünschten Weise gegenüber der Öffnungskraft herabgesetzt ist. Dabei wird gleichzeitig erstrebt, den Aufbau der Antriebseinheit der Hauptpatentanmeldung weiter zu vereinfachen und kompakter zu gestalten. Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß das Steuerventil, das in der zum Schließen der "Absperreinrichtung dienenden Zuleitung angeordnet ist, ein ebenfalls von einem Rückschlagventil überbrücktes Vorspannventil ist, dessen Vorspannung den Speisedruck des Rotationsmotors beim Schließen der Absperreinrichtung gegenüber dem Speisedruck beim Öffnen herabsetzt.The invention is therefore based on the object of providing a remotely controllable Drive unit according to the main patent application so weiterzubild.n that by the Structure of the drive unit ensures from the outset that the closing force is reduced in the desired manner compared to the opening force. It will at the same time strives to continue building the drive unit of the main patent application to simplify and make it more compact. This task is carried out according to the invention achieved in that the control valve, which is in the to close the "Shut-off device serving supply line is arranged, also from a Check valve is a bridged preload valve, the preload of which increases the feed pressure of the rotary motor when closing the shut-off device against the feed pressure decreases when opening.

Mit Hilfe des Vorspannventils kann die erwünschte Kraftdifferenz zwischen öffnungs- und Schließkraft genau vorgewählt und gegebenenfalls nachgestellt werden. Außerdem entfällt für dieses Ventil die Nockensteuerung, wodurch der Aufbau der Antriebseinheit vereinfacht wird und zugleich ein kompakterer Aufbau möglich ist. Der erfindungsgemäße Aufbau der Antriebseinheit setzt die Schließkraft während des ganzen Schließweges herab, und die Schließkraft bei geschlossener Absperreinrichtung entspricht dieser eingestellten Kraft.With the help of the preload valve, the desired force difference between opening and closing force can be precisely preselected and readjusted if necessary. In addition, there is no cam control for this valve, which means that the Drive unit is simplified and at the same time a more compact structure is possible. The inventive structure of the drive unit sets the closing force during the the entire closing path, and the closing force when the shut-off device is closed corresponds to this set force.

Die Erfindung wird im folgenden an Hand einer schematischen Zeichnung an einem Ausführungsbeispiel näher erläutert. Der Aufbau der Antriebseinheit entspricht im folgenden zunächst dem der Hauptpatentanmeldung. Die beiden letzten Ziffern der Bezugszahlen sind dabei die in der Hauptpatentanmeldung für entsprechende Elemente verwendeten Bezugszahlen.The invention is described below with reference to a schematic drawing explained in more detail using an exemplary embodiment. The structure of the drive unit corresponds in the following first that of the main patent application. The last two digits of the Reference numbers are those in the main patent application for corresponding elements reference numbers used.

Der hydraulische Rotationsmotor 101 kann über ein Vorgelege und eine Abtriebswelle in bekannter Weise mit der Spindel des nicht gezeigten Schiebers gekuppelt werden. Diese Abtriebsverbindung ist durch die gestrichelte, aus dem Gehäuse 150 der Antriebseinheit herausführende Linie 104 schematisch dargestellt. Das Antriebsgehäuse 150 ist ebenfalls nur schematisch gestrichelt dargestellt.The hydraulic rotary motor 101 can have a reduction gear and a Output shaft coupled in a known manner to the spindle of the slide, not shown will. This output connection is indicated by the dashed line from the housing 150 the drive unit leading out line 104 shown schematically. The drive housing 150 is also shown only schematically in dashed lines.

Durch den Motor 101 wird ein Steuernocken 130 angetrieben, der über eine Steuerverbindung 132 einen Stellungsanzeiger 137 für die Stellung des Rotationsmotors 101 und damit auch der Absperreinrichtung betätigt.A control cam 130 is driven by the motor 101, which over a control connection 132 a position indicator 137 for the position of the rotary motor 101 and thus also the shut-off device is actuated.

Der hydraulische Motor 101 ist in beiden Drehrichtungen antreibbar. Zum Umschalten der beiden Leitungen 109a, 109b, die zu dem Hydraulikmotor führen, dient ein an sich bekanntes Umschaltventil 151. Es sei angenommen, daß die rechte Leitung 109a während des Öffnungsvorganges mit Drucköl gespeist, während die linke dargestellte Leitung 109 b während des Schließvorganges mit Drucköl gespeist wird. In der rechten Speiseleitung ist ein mechanisch betätigtes Ausschaltventil 112 vorgesehen, zu dem parallel ein Rückschlagventil 155 geschaltet ist, das dafür sorgt, daß während des Schließvorganges das Öl durch die rechte Leitung in die Rücklaufleitung abfließen kann. Das mechanisch betätigte Ventil 112 wird durch einen vom Hydraulikmotor 101 unmittelbar bewegten Nocken betätigt, wie es in der Hauptpatentanmeldung im einzelnen beschrieben ist. Die Stellung des Nockens relativ zum Betätigungsglied des Ventils 112 ist so gewählt, daß in der Offenstellung mit Sicherheit ein Auftreffen des Schiebers auf das Schiebergehäuse vermieden wird. Auch in der linken Speiseleitung 109 b ist ebenso wie in der Hauptpatentanmeldung ein Rückschlagventil 154 vorgesehen, das dann, wenn die rechte Leitung mit Drucköl gespeist wird, dafür sorgt, daß das ablaufende Öl über die linke Leitung in die Rücklaufleitung des hydraulischen Systems zurücklaufen kann, während die linke Leitung mit Drucköl beaufschlagt wird.The hydraulic motor 101 can be driven in both directions of rotation. To switch the two lines 109 a, 109 b, which lead to the hydraulic motor, a known switching valve 151 is used Closing process is fed with pressure oil. A mechanically operated shut-off valve 112 is provided in the right feed line, to which a check valve 155 is connected in parallel, which ensures that the oil can flow through the right line into the return line during the closing process. The mechanically operated valve 112 is operated by a cam directly moved by the hydraulic motor 101, as described in detail in the main patent application. The position of the cam relative to the actuating member of the valve 112 is selected so that in the open position the slide is reliably prevented from hitting the slide housing. Also in the left feed line 109 b, as in the main patent application, a check valve 154 is provided which, when the right line is fed with pressurized oil, ensures that the draining oil can flow back through the left line into the return line of the hydraulic system, while the left line is pressurized with oil.

Gemäß der Erfindung muß aber anders als in der Hauptpatentanmeldung das Drucköl während des Schließvorganges ein Vorspannventil 113 passieren, das auf Grund seiner einstellbaren Federspannung dafür sorgt, daß der dem Hydraulikmotor zugeführte Öldruck um einen vorbestimmten Betrag niedriger ist als der Öldruck in der Speiseleitung bzw. der Öldruck in der rechten Leitung während des Öffnungsvorganges. Hierdurch wird gewährleistet, daß der Schieber während des Schließvorganges mit einem geringeren Drehmoment in seine Schließstellung eingefahren wird, als es während des öffnungsvorganges zur Verfügung steht. Sobald der Schieber zum Stillstand kommt, kommt auch der hydraulische Motor automatisch zum Stillstand, da ein ölfluß nicht mehr stattfindet.According to the invention, however, must be different than in the main patent application the pressurized oil pass a preload valve 113 during the closing process, which opens Because of its adjustable spring tension it ensures that the hydraulic motor supplied oil pressure is lower than the oil pressure in by a predetermined amount the feed line or the oil pressure in the right line during the opening process. This ensures that the slide during the closing process with a lower torque is retracted into its closed position than it is during the opening process is available. As soon as the slide comes to a standstill, the hydraulic motor also comes to a standstill automatically because there is no oil flow more takes place.

Claims (1)

Patentanspruch: Fernsteuerbare, druckmittelbetätigte Antriebseinheit für die Spindel von Absperreinrichtungen, insbesondere Schiebern auf Tankschiffen, mit einem wahlweise in beiden Drehrichtungen antreibbaren hydraulischen Rotationsmotor, dessen Endstellung von einem sich in Abhängigkeit von der Stellung des Verschlußstückes bewegenden Nocken durch Schließen eines in der Antriebseinheit angeordneten Steuerventils für die Zuleitung gesteuert wird, wobei das Steuerventil, das in der zum Öffnen der Absperreinrichtung dienenden Zuleitung angeordnet ist, durch ein Rückschlagventil überbrückt ist, der Nocken innerhalb der Antriebseinheit angeordnet ist und seine Bewegung unmittelbar vom Antriebsmotor erhält, und insbesondere die Stellung des Nockens relativ zum Betätigungsglied des Steuerventils einstellbar ist, nach Patentanmeldung V 20478 XII/47g, dadurch gekennzeichnet, daß das Steuerventil (113), das in der zum Schließen der Absperreinrichtung (104) dienenden Zuleitung (109b) angeordnet ist, ein ebenfalls von einem Rückschlagventil (154) überbrücktes Vorspannventil (113) ist, dessen Vorspannung den Speisedruck des Rotationsmotors (101) beim Schließen der Absperreinrichtung gegenüber dem Speisedruck beim Öffnen herabsetzt. In Betracht gezogene Druckschriften: Deutsche Auslegeschriften Nr.1020 841, 1058 802, 1077 018, 1097 229; britische Patentschrift Nr. 763 513; USA: Patentschrift Nr. 2 914 082.Claim: Remotely controllable, pressure medium-operated drive unit for the spindle of shut-off devices, in particular gate valves on tankers, with a hydraulic rotary motor that can be driven in either direction of rotation, the end position of which is controlled by a cam moving depending on the position of the closure piece by closing a control valve arranged in the drive unit the feed line is controlled, the control valve, which is arranged in the feed line used to open the shut-off device, is bridged by a check valve, the cam is arranged within the drive unit and receives its movement directly from the drive motor, and in particular the position of the cam relative to the The actuator of the control valve is adjustable, according to patent application V 20478 XII / 47g, characterized in that the control valve (113) is arranged in the supply line (109b) serving to close the shut-off device (104) is, also by a check valve (154) bridged preload valve (113), whose preload reduces the feed pressure of the rotary motor (101) when closing the shut-off device compared to the feed pressure when opening. Considered publications: German Auslegeschriften Nos. 1020 841, 1058 802, 1077 018, 1097 229; British Patent No. 763,513; USA: Patent No. 2,914,082.
DEV21473A 1961-04-11 1961-10-17 Drive unit for shut-off devices, in particular gate valves on tankers Pending DE1209387B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEV20478A DE1200087B (en) 1961-04-11 1961-04-11 Drive unit for shut-off devices, in particular gate valves on tankers
DEV21473A DE1209387B (en) 1961-04-11 1961-10-17 Drive unit for shut-off devices, in particular gate valves on tankers
FI73262A FI40670B (en) 1961-04-11 1962-04-06
GB1383662A GB971009A (en) 1961-04-11 1962-04-10 Hydraulic actuating device for slide valves
BE616279A BE616279A (en) 1961-04-11 1962-04-11 Hydraulic operating device for valves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEV20478A DE1200087B (en) 1961-04-11 1961-04-11 Drive unit for shut-off devices, in particular gate valves on tankers
DEV21473A DE1209387B (en) 1961-04-11 1961-10-17 Drive unit for shut-off devices, in particular gate valves on tankers

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DE1209387B true DE1209387B (en) 1966-01-20

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DEV21473A Pending DE1209387B (en) 1961-04-11 1961-10-17 Drive unit for shut-off devices, in particular gate valves on tankers

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DE (2) DE1200087B (en)
FI (1) FI40670B (en)
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FI40670B (en) 1968-12-31
GB971009A (en) 1964-09-23
DE1200087B (en) 1965-09-02
BE616279A (en) 1962-07-31

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