EP2774727A1 - Control of the operating frequency of a striking mechanism - Google Patents

Control of the operating frequency of a striking mechanism Download PDF

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Publication number
EP2774727A1
EP2774727A1 EP14154964.2A EP14154964A EP2774727A1 EP 2774727 A1 EP2774727 A1 EP 2774727A1 EP 14154964 A EP14154964 A EP 14154964A EP 2774727 A1 EP2774727 A1 EP 2774727A1
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EP
European Patent Office
Prior art keywords
medium
control
switchable
control device
piston
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.)
Granted
Application number
EP14154964.2A
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German (de)
French (fr)
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EP2774727B1 (en
Inventor
Stefan Kaindlbauer
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TMT-BBG RESEARCH und DEVELOPMENT GmbH
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TMT -BBG Research und Development GmbH
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Priority to PL14154964T priority Critical patent/PL2774727T3/en
Priority to RS20171150A priority patent/RS56633B1/en
Publication of EP2774727A1 publication Critical patent/EP2774727A1/en
Application granted granted Critical
Publication of EP2774727B1 publication Critical patent/EP2774727B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/18—Valve arrangements therefor involving a piston-type slide valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/20—Stopper-rod operating equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/40—Means for pressing the plates together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools

Definitions

  • the invention relates to a control of a hammer operated by means of a pressure medium with a means for reversing the axial pressurization of the percussion piston and the return of the medium.
  • the invention relates to a striking mechanism for a device for opening and optionally closing a tap hole in the wall of a metallurgical vessel.
  • Impact devices for an axially in both directions usable hammer device are known and are state of the art.
  • these striking mechanisms are used in facilities for opening and / or closing a taphole in a metallurgical vessel.
  • the EP 0930476 A discloses, for example, a striking mechanism with a cattail in a hammer device for the above field of use.
  • the tool is applied during use in propulsion and also in the retreat essentially with the same impact energy and impact frequency.
  • the invention is therefore based on the object to improve the controllability of percussion and to create and a control device by means of which the energy and the frequency of the moving percussion piston are adjustable within wide limits.
  • This goal is achieved in a control of a hammer operated by means of a pressure medium of the type mentioned in that at least one of the reversal as a return for the medium switchable piston from the percussion channel has at least one switchable means for flow control.
  • the advantages achieved with the invention are essentially to be seen in the fact that the return flow of the medium moving the piston takes place after a change in quantity control.
  • different flow openings of a switching means which are alternatively activated in the return line, the backwater of the medium can be changed for reversing out, so that the time until the subsequent pressurization of the percussion piston is variable.
  • the impact force and in particular the beat frequency can be controlled, whereby a delayed reversal influences the impact energy.
  • a change in the flow rate per unit time in the return line or a flow control in this can be achieved in a simple manner, for example by a switchable means with different cross-sections bottlenecks in the flow channel.
  • a flow rate control or a pressure curve over time takes place in the return line of the expanded medium, which changes the frequency and consequently the energy or the intensity of the strokes of the piston.
  • the switchable means can thus control the impact mechanism in each working direction and optimally adjust the tooling of a device differently.
  • switchable means for flow control for the medium are separated from each other adjustable.
  • a control device as described above can optimally meet substantially all requirements imposed on a percussion mechanism in a harsh application.
  • an inventive control of the type described for a device for opening and / or closing a taphole of a metallurgical vessel can be used.
  • the control offers the possibility, with regard to the brittle and fracture-endangered refractory lining masses of a metallurgical vessel, of creating optimal conditions for opening a tap in a melt vessel.
  • Control devices according to the invention may serve the following list of reference numerals.
  • Fig. 1 shows a control device S with a housing 1, which on both sides in Axraum a cover 13, 11 , wherein a cover 13 with a projecting insert a medium discharge 4 is used.
  • An opposing cover 11 acts as a fastening means for a switching insert 12 with a Steuermitteizuschreib 34.
  • a tubular switching means 3 which acts on the one hand by a spring 33 which is supported on the cover 11 , axially with a compressive force becomes.
  • pressure medium which is effective on a directed against the spring force pressure surface on the switching means 3 , are initiated and move it against the spring force.
  • the switching means 3 which extends into the cavity of the Um Kunststoffmaschines 2 , be positioned.
  • the reversing part 2 is arranged axially movable within limits, wherein on the use of the cover 13 and the switching insert 12 radial stop surfaces are used for the respective positioning of the switching part 2 .
  • the inner surface in the housing 1 and the outer surface of the Um Kunststoffteil 2 have recesses which open depending on the axial position of the Um Kunststoffteils 2 ways for a flow of the pressure medium or a return flow of the medium to or from percussion.
  • a supply chamber 21 for the pressure medium is connected to a channel 22 , so that this pressure medium acts on one side of a piston in the striking mechanism.
  • the flow control means 31 controls the return flow of the medium or the time until which the pressure in the return duct 23 is lowered so that a displacement of the Um Kunststoffmaschines 2 by the pressure medium on the radial pressure surface of the part against the switching insert 12 takes place, thereby characterized the Return flow path switched off and the channel 23 is converted to the line of the pressure medium to the percussion piston.
  • Um Kunststoffers 2 causes an interruption of the supply of the pressure medium and a circuit of the channel 22 as a return line for the medium, which is passed through the recess and through a bore in Um Kunststoffteil 2 for Ruleaustrag 4 .
  • the switching means 3 is pushed axially into the switching means 2 by activation of the spring 33 or a pressure reduction of the control means, a changed backflow or a different outflow quantity acts via the surface recess on the switching means 3 and the means 32 for flow control in the medium discharge the medium in the unit time, whereby the timing of the reversal of the pressure medium is changed to the respective pressure surfaces of the piston.
  • Fig. 2 is a universally applicable control device for a movement of a percussion piston shown.
  • this universally applicable control device is constructed in mirror image and has in comparison with Fig. 1 centrally symmetrically constructed switching inserts 12, 12 ' with switching means 3, 3' on.
  • the advantage of in Fig. 2 The control device shown is a universally controllable feeding of a piston in a percussion and thus a far-reaching adjustment of the intensity and the frequency of optionally acting in both axial directions percussion of a hammer device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

The control device (S) has an element which is provided for reversing the axial pressurization of the percussion piston and the return of the medium. A channel is switchable by the reversal (2) as a return line for the medium from the percussion hammer having the switchable element (3) for flow control.

Description

Die Erfindung bezieht sich auf eine Steuerung eines mittels eines Druckmediums betreibbaren Schlagwerkes mit einem Mittel zur Umsteuerung der axialen Druckbeaufschlagung des Schlagkolbens und der Rückführung des Mediums.The invention relates to a control of a hammer operated by means of a pressure medium with a means for reversing the axial pressurization of the percussion piston and the return of the medium.

Weiters betrifft die Erfindung ein Schlagwerk für eine Vorrichtung zum Offenstellen und gegebenenfalls zum Verschließen einer Abstichöffnung in der Wand eines metallurgischen Gefäßes.Furthermore, the invention relates to a striking mechanism for a device for opening and optionally closing a tap hole in the wall of a metallurgical vessel.

Schlagwerke für eine axial in beide Richtungen einsetzbare Hammereinrichtung sind bekannt und zählen zum Stand der Technik.Impact devices for an axially in both directions usable hammer device are known and are state of the art.

Mit Vorteil werden diese Schlagwerke in Einrichtungen zum Öffnen und/oder Verschließen einer Abstichöffnung in einem metallurgischen Gefäß eingesetzt.Advantageously, these striking mechanisms are used in facilities for opening and / or closing a taphole in a metallurgical vessel.

Die EP 0930476 A offenbart beispielsweise ein Schlagwerk mit einem Rohrkolben in einer Hammereinrichtung für obiges Verwendungsgebiet. Dabei wird das Werkzeug bei einem Einsatz im Vortrieb und auch im Rückzug im Wesentlichen mit der gleichen Schlagenergie und Schlagfrequenz beaufschlagt.The EP 0930476 A discloses, for example, a striking mechanism with a cattail in a hammer device for the above field of use. In this case, the tool is applied during use in propulsion and also in the retreat essentially with the same impact energy and impact frequency.

Um die Schlagfrequenz und die Schlagkraft des Kolbens eines Schlagwerkes in beide Richtungen verändern zu können, wurde gemäß AT 1397/2011 vorgeschlagen, im Rohrkolben eine Steuerausnehmung und im Schlagwerksgehäuse axial versetzt mindestens zwei Steuernuten für eine Umschaltung der Druckbeaufschlagung der jeweiligen Rohrkolbendruckflächen vorzusehen und durch ein Steuermittel die Umsteuerungsnuten alternativ zu aktivieren. Derart wird erreicht, dass der Rohrkolben je nach Aktivierung einer der in Axrichtung versetzten Umsteuerungsnute einen unterschiedlichen Verschiebe- bzw. Beschleunigungsweg in beiden Schlagrichtungen ausführt.In order to be able to change the impact frequency and the impact force of the piston of a percussion mechanism in both directions, was AT 1397/2011 proposed, in the tubular piston a control recess and axially offset in Schlagwerksgehäuse at least two control grooves for switching the pressurization of the respective Rohrkolbendruckflächen provided and activated by a control means, the Umsteuerungsnuten alternatively. It is thus achieved that, depending on the activation of one of the reversing grooves offset in the axial direction, the tubular piston performs a different displacement or acceleration path in both directions of impact.

Besondere Anforderungen an die Vortriebs- und Rückzugsbedingungen für Werkzeuge, insbesondere von Einrichtungen in der Hüttenindustrie, stellen derzeit an ein Schlagwerk weitergehende Forderungen betreffend eine Regelbarkeit der Kolbenbewegung.Particular requirements for the propulsion and retraction conditions for tools, in particular of facilities in the metallurgical industry, currently make further demands on a controllability of the Piston movement.

Die Erfindung setzt sich demzufolge zur Aufgabe, die Regelbarkeit von Schlagwerken zu verbessern bzw. zu erweitern und eine Steuereinrichtung zu schaffen, mittels welcher die Energie und die Frequenz des bewegten Schlagkolbens in weiten Grenzen einstellbar sind.The invention is therefore based on the object to improve the controllability of percussion and to create and a control device by means of which the energy and the frequency of the moving percussion piston are adjustable within wide limits.

Dieses Ziel wird bei einer Steuerung eines mittels eines Druckmediums betreibbaren Schlagwerkes der eingangs genannten Art dadurch erreicht, dass zumindest ein von der Umsteuerung als Rückleitung für das Medium vom Schlagkolben schaltbarer Kanal zumindest ein schaltbares Mittel zur Durchflussregelung aufweist.This goal is achieved in a control of a hammer operated by means of a pressure medium of the type mentioned in that at least one of the reversal as a return for the medium switchable piston from the percussion channel has at least one switchable means for flow control.

Die mit der Erfindung erreichten Vorteile sind im Wesentlichen darin zu sehen, dass der Rückfluss des den Kolben bewegenden Mediums nach einer Umsteuerung mengengeregelt erfolgt. Durch beispielsweise unterschiedliche Durchflussöffnungen eines Schaltmittels, die alternativ in der Rückleitung aktivierbar sind, kann der Rückstau des Mediums zur Umsteuerung hin verändert werden, sodass die Zeitdauer bis zur folgenden Druckbeaufschlagung des Schlagkolbens veränderbar ist. Derart kann die Schlagkraft und insbesondere die Schlagfrequenz gesteuert werden, wobei auch eine verzögerte Umsteuerung die Schlagenergie beeinflusst.The advantages achieved with the invention are essentially to be seen in the fact that the return flow of the medium moving the piston takes place after a change in quantity control. By way of example, different flow openings of a switching means, which are alternatively activated in the return line, the backwater of the medium can be changed for reversing out, so that the time until the subsequent pressurization of the percussion piston is variable. In this way, the impact force and in particular the beat frequency can be controlled, whereby a delayed reversal influences the impact energy.

Eine Änderung der Durchflussmenge je Zeiteinheit in der Rückleitung bzw. eine Durchflussregelung in dieser kann auf einfache Weise beispielsweise durch ein schaltbares Mittel, mit verschiedene Querschnitte aufweisenden Engstellen im Strömungskanal, erreicht werden.A change in the flow rate per unit time in the return line or a flow control in this can be achieved in a simple manner, for example by a switchable means with different cross-sections bottlenecks in the flow channel.

Eine Durchflussmengenregelung bzw. ein Druckverlauf über der Zeit erfolgt in der Rückleitung des entspannten Mediums, was die Frequenz und in Konsequenz die Energie bzw. die Intensität der Schläge des Kolbens verändert.A flow rate control or a pressure curve over time takes place in the return line of the expanded medium, which changes the frequency and consequently the energy or the intensity of the strokes of the piston.

Für ein vorteilhaft universelles Regelverhalten in beiden Schlagrichtungen des Schlagwerkes können beide von der Umsteuerung als Rückleitung für das Medium vom Schlagkolben schaltbare Kanäle schaltbare Mittel zur Durchflussregelung aufweisen.For an advantageous universal control behavior in both directions of impact of Schlagwerkes both switchable from the reversal of the medium switchable from the percussion piston channels switchable means for flow control exhibit.

Die schaltbaren Mittel können derart das Schlagwerk in jeder Arbeitsrichtung steuern und jeweils unterschiedlich die Werkzeugbeaufschlagung einer Einrichtung optimal einstellen.The switchable means can thus control the impact mechanism in each working direction and optimally adjust the tooling of a device differently.

Dabei kann es günstig sein, wenn die schaltbaren Mittel zur Durchflussregelung für das Medium voneinander getrennt einstellbar sind.It may be advantageous if the switchable means for flow control for the medium are separated from each other adjustable.

Eine vorbeschriebene Steuereinrichtung kann in optimaler Weise an im Wesentlichen alle Erfordernisse, die in einem harten Einsatz an ein Schlagwerk gestellt werden, erfüllen.A control device as described above can optimally meet substantially all requirements imposed on a percussion mechanism in a harsh application.

Mit besonderem Vorteil ist eine erfindungsgemäße Steuerung der beschriebenen Art für eine Einrichtung zum Offenstellen und/oder Verschließen einer Abstichöffnung eines metallurgischen Gefäßes verwendbar.With particular advantage, an inventive control of the type described for a device for opening and / or closing a taphole of a metallurgical vessel can be used.

Die Steuerung bietet die Möglichkeit, mit Rücksicht auf die spröden und bruchgefährdeten, feuerfesten Auskleidungsmassen eines metallurgischen Gefäßes, optimale Bedingungen für ein Öffnen eines Abstiches in einem Schmelzengefäß zu schaffen.The control offers the possibility, with regard to the brittle and fracture-endangered refractory lining masses of a metallurgical vessel, of creating optimal conditions for opening a tap in a melt vessel.

In der Folge soll an zwei graphischen Darstellungen, die jeweils nur einen Ausführungsweg der Erfindung wiedergeben, die Steuerung eines mittels Druckmedium betreibbaren Schlagwerkes vermittelt werden.As a result, the control of an impact mechanism operable by means of a pressure medium is to be mediated by means of two graphic representations, each of which represents only one embodiment of the invention.

Es zeigen:

Fig.1
eine Steuereinrichtung mit einer in einer Rückleitung positionierten Durchflussregelung
Fig. 2
eine universell einsetzbare Steuereinrichtung für die Bewegung eines Schlagkolbens
Show it:
Fig.1
a control device with a flow control positioned in a return line
Fig. 2
a universally applicable control device for the movement of a percussion piston

Zur leichteren Zuordnung der Teile und Komponenten in den Darstellungen vonFor easier allocation of parts and components in the illustrations of

Steuereinrichtungen gemäß der Erfindung möge die nachfolgende Bezugszeichenliste dienen.Control devices according to the invention may serve the following list of reference numerals.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

SS
Steuereinrichtungcontrol device
11
Gehäusecasing
11,11',1311,11 ', 13
Abdeckungcover
12, 12'12, 12 '
Schalteinsatzswitch insert
22
Umsteuerungsteildirection member
2121
Zuführraum für DruckmediumFeed chamber for pressure medium
2222
Schaltbarer Kanal im GehäuseSwitchable channel in the housing
2323
Schaltbarer Kanal im GehäuseSwitchable channel in the housing
3,3'3,3 '
Schaltmittelswitching means
31,31'31.31 '
Mittel zur DurchflussregelungMeans for flow control
32,32'32.32 '
Mittel zur DurchflussregelungMeans for flow control
33,33'33.33 '
Druckfedercompression spring
34.34'34.34 '
SteuermittelzufuhrControl means supply
35,35'35.35 '
Druckflächeprint area
44
Mediumaustragmedium discharge

Fig. 1 zeigt eine Steuereinrichtung S mit einem Gehäuse 1, welches beidseitig in Axrichtung eine Abdeckung 13, 11 aufweist, wobei eine Abdeckung 13 mit einem vorragenden Einsatz einem Mediumaustrag 4 dient. Fig. 1 shows a control device S with a housing 1, which on both sides in Axrichtung a cover 13, 11 , wherein a cover 13 with a projecting insert a medium discharge 4 is used.

Eine gegenüberliegende Abdeckung 11 wirkt als Befestigungsmittel für einen Schalteinsatz 12 mit einer Steuermitteizufuhr 34. Im Schalteinsatz 12 ist axial in Grenzen verschiebbar ein rohrförmiges Schaltmittel 3 angeordnet, welches einerseits durch eine Feder 33, die sich an der Abdeckung 11 abstützt, axial mit einer Druckkraft beaufschlagt wird. Andererseits kann über die Steuermittelzufuhr 34 Druckmedium, welches an einer gegen die Federkraft gerichteten Druckfläche am Schaltmittel 3 wirksam ist, eingeleitet werden und dieses gegen die Federkraft verschieben. Derart kann das Schaltmittel 3, welches in den Hohlraum des Umsteuerteiles 2 reicht, positioniert werden.An opposing cover 11 acts as a fastening means for a switching insert 12 with a Steuermitteizufuhr 34. In the switch insert 12 axially slidably within a tubular switching means 3 is arranged, which acts on the one hand by a spring 33 which is supported on the cover 11 , axially with a compressive force becomes. On the other hand, via the control medium supply 34 pressure medium, which is effective on a directed against the spring force pressure surface on the switching means 3 , are initiated and move it against the spring force. In this way, the switching means 3, which extends into the cavity of the Umsteuerteiles 2 , be positioned.

Im Gehäuse 1 ist das Umsteuerteil 2 axial in Grenzen bewegbar angeordnet, wobei am Einsatz der Abdeckung 13 und am Schalteinsatz 12 radiale Anschlagflächen zur jeweiligen Positionierung des Umschaltteiles 2 dienen.In the housing 1 , the reversing part 2 is arranged axially movable within limits, wherein on the use of the cover 13 and the switching insert 12 radial stop surfaces are used for the respective positioning of the switching part 2 .

Die Innenoberfläche im Gehäuse 1 und die Außenoberfläche vom Umsteuerteil 2 weisen Ausnehmungen auf, welche je nach der axialen Position des Umsteuerteiles 2 Wege für einen Fluss des Druckmediums oder einem Rückfluss des Mediums zum bzw. vom Schlagwerk offenstellen.The inner surface in the housing 1 and the outer surface of the Umsteuerteil 2 have recesses which open depending on the axial position of the Umsteuerteiles 2 ways for a flow of the pressure medium or a return flow of the medium to or from percussion.

In der Darstellung gemäß Fig. 1 befindet sich das Umsteuerteil 2 im Anschlag an die Abdeckung 13. In the illustration according to Fig. 1 is the Umsteuerteil 2 in abutment against the cover 13th

Ein Zuführraum 21 für das Druckmedium ist mit einem Kanal 22 verbunden, sodass dieses Druckmedium eine Seite eines Kolbens im Schlagwerk beaufschlagt.A supply chamber 21 for the pressure medium is connected to a channel 22 , so that this pressure medium acts on one side of a piston in the striking mechanism.

Von der Gegenseite des Kolbens erfolgt eine Rückführung des Mediums durch einen Kanal 23 in das Gehäuse 1 und wird dieses Medium durch eine Bohrung im Umschaltteil 2 (nicht dargestellt) in einen Außenraum des Schaltmittels 3 geleitet und durch ein Mittel 31 in diesem zur Durchflussregelung danach zentral zum Mediumaustrag verbracht.From the opposite side of the piston there is a return of the medium through a channel 23 in the housing 1 and this medium is passed through a bore in the switching part 2 (not shown) in an outer space of the switching means 3 and centrally by a means 31 in this flow control thereafter spent to the medium discharge.

Das Mittel 31 zur Durchflussregelung steuert den Rückfluss des Mediums bzw. die Zeitspanne bis zu welcher der Druck im Rückführkanal 23 soweit erniedrigt ist, dass eine Verschiebung des Umsteuerteiles 2 durch das Druckmedium auf die radiale Druckfläche des Teiles gegen den Schalteinsatz 12 erfolgt, wobei dadurch der Rückflussweg abgeschaltet und der Kanal 23 zur Leitung des Druckmediums zum Schlagkolben umfunktioniert wird.The flow control means 31 controls the return flow of the medium or the time until which the pressure in the return duct 23 is lowered so that a displacement of the Umsteuerteiles 2 by the pressure medium on the radial pressure surface of the part against the switching insert 12 takes place, thereby characterized the Return flow path switched off and the channel 23 is converted to the line of the pressure medium to the percussion piston.

Gleichzeitig bewirkt die Verschiebung des Umsteuerteiles 2 eine Unterbrechung der Zuführung vom Druckmittel und eine Schaltung des Kanals 22 als Rückführleitung für das Medium, welches über die Ausnehmung und durch eine Bohrung im Umsteuerteil 2 zum Medienaustrag 4 geleitet wird. Wird nun das Schaltmittel 3 durch Aktivierung der Feder 33 bzw. einen Druckabbau des Steuermittels axial zum Schaltmittel 2 hin in dieses eingeschoben, so wirkt über die Oberflächenausnehmung am Schaltmittel 3 und dem Mittel 32 zur Durchflussregelung in den Mediumaustrag ein geänderter Rückstau bzw. eine unterschiedliche Abflussmenge des Mediums in der Zeiteinheit, wodurch der Zeitpunkt der Umsteuerung des Druckmediums auf die jeweiligen Druckflächen des Kolbens verändert ist.At the same time the displacement of Umsteuerteiles 2 causes an interruption of the supply of the pressure medium and a circuit of the channel 22 as a return line for the medium, which is passed through the recess and through a bore in Umsteuerteil 2 for Medienaustrag 4 . If now the switching means 3 is pushed axially into the switching means 2 by activation of the spring 33 or a pressure reduction of the control means, a changed backflow or a different outflow quantity acts via the surface recess on the switching means 3 and the means 32 for flow control in the medium discharge the medium in the unit time, whereby the timing of the reversal of the pressure medium is changed to the respective pressure surfaces of the piston.

Weil nun bei einer folgenden Umsteuerung die Rückführung des Mediums vom Kanal 22 durch eine Bohrung 30 im Umsteuerteil 2 zum Medienaustrag 4 hin unbeeinflusst erfolgt, bleibt in einer Richtung die Energie des Schlagwerks gleich bzw. nicht regelbar.Because now in a subsequent reversal, the return of the medium from the channel 22 through a bore 30 in the reversing part 2 to the media discharge 4 out unaffected takes place in one direction, the energy of the percussion equal or not regulated.

In Fig. 2 ist eine universell einsetzbare Steuereinrichtung für eine Bewegung eines Schlagkolbens gezeigt.In Fig. 2 is a universally applicable control device for a movement of a percussion piston shown.

Im Wesentlichen ist diese universell einsetzbare Steuereinrichtung spiegelbildlich aufgebaut und weist im Vergleich mit Fig. 1 zentrischsymmetrisch gleich aufgebaute Schalteinsätze 12, 12' mit Schaltmittel 3, 3' auf.In essence, this universally applicable control device is constructed in mirror image and has in comparison with Fig. 1 centrally symmetrically constructed switching inserts 12, 12 ' with switching means 3, 3' on.

Aus der Beschreibung von Fig. 1 kann ein Fachmann die Wirkungsweise einer universell einsetzbaren Steuereinrichtung gemäß Fig. 2 ableiten.From the description of Fig. 1 a person skilled in the art, the operation of a universally applicable control device according to Fig. 2 derived.

Der Vorteil der in Fig. 2 dargestellten Steuereinrichtung ist eine universell regelbare Anspeisung eines Kolbens in einem Schlagwerk und somit eine weitestgehende Einstellung der Intensität und der Frequenz von gegebenenfalls in beide Axrichtungen wirkenden Schlagwerken einer Hammereinrichtung.The advantage of in Fig. 2 The control device shown is a universally controllable feeding of a piston in a percussion and thus a far-reaching adjustment of the intensity and the frequency of optionally acting in both axial directions percussion of a hammer device.

Claims (4)

Steuereinrichtung (S) eines mittels eines Druckmediums betreibbaren Schlagwerkes mit einem Mittel zur Umsteuerung (2) der axialen Druckbeaufschlagung des Schlagkolbens und der Rückführung des Mediums, dadurch gekennzeichnet, dass zumindest ein von der Umsteuerung (2) als Rückleitung für das Medium vom Schlagkolben schaltbarer Kanal zumindest ein schaltbares Mittel (3) zur Durchflussregelung aufweist.Control device (S) of a hammer operated by means of a pressure medium with a means for reversing (2) the axial pressurization of the percussion piston and the return of the medium, characterized in that at least one of the reversal (2) as a return line for the medium from the percussion piston switchable channel has at least one switchable means (3) for flow control. Steuereinrichtung (S) nach Anspruch 1, dadurch gekennzeichnet, dass beide von der Umsteuerung (2) als Rückleitung für das Medium vom Schlagkolben schaltbare Kanäle schaltbare Mittel (3, 3') zur Durchflussregelung aufweisen.Control device (S) according to claim 1, characterized in that both of the reversal (2) as a return line for the medium of the percussion piston switchable channels switchable means (3, 3 ') for flow control. Steuereinrichtung (S) nach Anspruch 2, dadurch gekennzeichnet, dass die schaltbaren Mittel (3, 3') zur Durchflussregelung für das Medium voneinander getrennt einstellbar sind.Control device (S) according to claim 2, characterized in that the switchable means (3, 3 ') for flow control for the medium are separated from each other adjustable. Verwendung einer Steuereinrichtung (S) eines mittels Druckmediums betreibbaren Schlagwerkes nach einem der Ansprüche 1 bis 3 in einer Einrichtung zum Offenstellen und/oder Verschließen einer Abstichöffnung eines metallurgischen Gefäßes.Use of a control device (S) of a striking mechanism operable by means of pressure medium according to one of claims 1 to 3 in a device for opening and / or closing a tapping opening of a metallurgical vessel.
EP14154964.2A 2013-03-04 2014-02-13 Control of the operating frequency of a striking mechanism Active EP2774727B1 (en)

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PL14154964T PL2774727T3 (en) 2013-03-04 2014-02-13 Control of the operating frequency of a striking mechanism
RS20171150A RS56633B1 (en) 2013-03-04 2014-02-13 Control of the operating frequency of a striking mechanism

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ATA50139/2013A AT513849B1 (en) 2013-03-04 2013-03-04 Control of the working frequency of a striking mechanism

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US (1) US10035250B2 (en)
EP (1) EP2774727B1 (en)
JP (1) JP5921588B2 (en)
KR (1) KR101754069B1 (en)
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TWI587990B (en) 2017-06-21
IN2014DE00459A (en) 2015-06-19
KR101754069B1 (en) 2017-07-05
US20140290971A1 (en) 2014-10-02
EP2774727B1 (en) 2017-09-13
BR102014004844B1 (en) 2021-06-08
CA2844429C (en) 2018-06-05
PL2774727T3 (en) 2018-02-28
CN104101216B (en) 2018-04-06
AT513849B1 (en) 2014-08-15
CN104101216A (en) 2014-10-15
ES2649476T3 (en) 2018-01-12
KR20140109314A (en) 2014-09-15
BR102014004844A2 (en) 2014-12-09
UA112550C2 (en) 2016-09-26
RU2014108199A (en) 2015-09-10
RU2581324C2 (en) 2016-04-20
JP2014168841A (en) 2014-09-18
US10035250B2 (en) 2018-07-31
RS56633B1 (en) 2018-03-30
TW201440971A (en) 2014-11-01
JP5921588B2 (en) 2016-05-24
CA2844429A1 (en) 2014-09-04
AT513849A4 (en) 2014-08-15

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