EP0007554A1 - Device for maintaining the tension in a tow cable - Google Patents
Device for maintaining the tension in a tow cable Download PDFInfo
- Publication number
- EP0007554A1 EP0007554A1 EP79102488A EP79102488A EP0007554A1 EP 0007554 A1 EP0007554 A1 EP 0007554A1 EP 79102488 A EP79102488 A EP 79102488A EP 79102488 A EP79102488 A EP 79102488A EP 0007554 A1 EP0007554 A1 EP 0007554A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winch
- tension
- tensioning
- cable
- force
- 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
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 238000005065 mining Methods 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 6
- 230000002459 sustained effect Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 9
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
Definitions
- the invention relates to a device for tensioning a traction rope, which is connected to an object that can change position independently of the rope force, in particular for indirectly tensioning an electric cable leading to a reciprocating coal-mining machine.
- the problem underlying the invention has arisen from the need for energy - Or to lead other lines to a mobile work machine via an aid via which the lines are held in a defined position so that they cannot be run over by the portable work machine.
- the most common tool to solve this problem is the cable drag chain.
- it is expensive and cannot be used for any length of movement of a work machine.
- the invention has for its object to provide a device for holding a pull rope with which the tension in the pull rope can be kept largely constant, which has the effect that when pulling the pull rope at a moving point to which the pull rope is connected there is no counter torque to be overcome on a rewinder.
- the solution to this problem consists of a controllable and reversible driven winch, set up for the continuous delivery of a torque and thus a continuous pulling force in the pulling rope, with a drum for receiving one end of the pulling rope, and a tensioning device for exerting a counter-tensioning force in the pulling rope with one depending the tension in the traction rope movable element, which is acted upon by a sustainable spring force determining a desired tension, which is dimensioned so large that the movable element is in equilibrium when the continuous tensile force of the winch is equal to the desired counter-tensioning force exerted by the tensioning device, and from a control for regulating the winch as a function of changes in position of the movable element of the tensioning device in the sense and extent that the movable element is returned to the equilibrium position.
- the device according to the invention with a winch for winding and unwinding the pull rope which can also be the power line itself, can be referred to as a "winch winch" which is actuated via a control device as a function of deviations from a desired tension within the pull rope becomes. It is controlled in the sense of winding up when the target tension in the pull rope drops because a reference point is approaching the winch, or vice versa.
- the constant tension that can be adjusted in this way in the pulling rope under the forthcoming continuous torque of the winch prevents intermittent tensile loads at the connection points and the introduction of energy or other lines into the portable working machine, since every impact from the movable element of the tensioning device is caught.
- the invention also encompasses an area of application in which the end of the traction cable is fixed and the device itself can be moved.
- the cases are considered where a cable comes off a ship, that the tension should be kept constant under the ship's movements in the vertical and / or horizontal direction, for example when laying cables or when the ship is at anchor.
- Cases are also conceivable in which the tension of a rope originating from a helicopter in the air is to be kept constant, for example if several helicopters are used to carry heavy loads. So far, complicated electronic helicopter controls have been used for this.
- a particularly recommendable special solution according to the invention is that the winch is a commercially available compressed air-operated tractor reel with a hand lever that can be controlled from a middle stop position for forward and reverse gear, on which a linkage following the changes in position of the movable element of the tensioning device acts,
- the movable element of the tensioning device for generating the counter-tensioning force in the rope is expediently a tensioning roller over which the pull rope is guided, the tensioning roller being arranged on the short lever arm of a balance beam, to the longer lever arm of which a tension spring and an actuating rod leading to the hand lever of the winch are connected are.
- the equilibrium position of the tensioning roller is set when the spring force holds the balance beam and, via the actuating rod, the hand lever of the winch in such a way that the moment of tensioning force on the tensioning roller and short lever arm equals the moment of spring force and the longer lever arm, below which the spring engages on the balance beam are the same.
- the lever arm ratio and / or the spring force can be changed to set the desired target tension in the pull rope.
- the change in position of the movable is useful Element or the tension roller limited by stops, which are assigned switching positions of the control of the winch, in which the winch is fully switched on. If, for example, a rapid deflection of the object on which the traction rope ultimately engages results in a strong deflection of the movable element or the tensioning pulley, the winch is fully switched on in a stop position to allow the traction rope to run off or to be brought in.
- the device according to the invention is always to be installed in the most favorable place in adaptation to local conditions.
- the device according to the invention does not require anything other than the energy supply for the winch.
- further energy-carrying connections, as well as any type of cable or flexible lines can be kept taut with a simple rope and the deflection roller.
- the pulley only the pulley to be chosen accordingly, with the possibility of a multiple To be provided for various flexible lines, all of which carry the same moving object. It is advisable to adapt to different diameters of the different lines To provide pulleys of different diameters the running lengths of lines when the position of the multiple deflection roller changes and thus the tensions between them remain as constant as possible.
- a mobile coal extraction machine 1 located on site, from which a power cable 2 is connected, which is connected to a fixedly arranged switch box 3.
- This power cable 2 is to be kept taut under the driving movements of the coal mining machine 1 by means of the "winch winch" 4 according to the invention, so that it cannot be run over by the coal mining machine.
- the power cable 2 is guided to the switch box 3 via a deflecting roller 5, the deflecting roller 5 is the end point of a traction cable 6 which leads to the winch according to the invention, the power cable 2 is thus held indirectly tensioned via the traction cable 6.
- the deflection roller 5 When the coal mining machine 1 is moved to the left, the deflection roller 5 follows into the end position 5 'shown in dashed lines.
- the maximum adjustment path S of the deflection 5 is half of the maximum displacement path of the coal extraction machine 1 to the left.
- the "winch winch” according to the invention according to FIGS. 2 and 3 initially comprises a base plate 8 with a commercially available compressed air-operated tractor reel 9 fastened thereon, the hand lever 10 of which is in a horizontal middle stop position in FIG. 3.
- This hand lever is adjustable in the two dash-dotted pivot positions for forward and reverse gear, so that the tractor reel 9 is reversible and equipped with a controllable drive.
- the traction cable 6, which leads to the axis of the deflection roller 5, is wound onto the drum 9a of the tractor reel 9 (Fig. 1).
- the traction cable 6 runs over a tension roller 11 that changes its position, from which the control for the hand lever 10 of the tractor reel 9 is actuated.
- the tensioning roller 11 is arranged on the short lever arm 12a of a balance beam 12, to the longer lever arm 12b of which a tension spring 13 and an actuating rod 14 leading to the hand lever 10 are connected.
- the balance beam 12 is pivotally mounted about the axis of rotation 15 of a fork 16, which is connected to the base plate 8 via a support 17.
- the tension roller 11 is articulated via a double bracket 18 at the end of the short lever arm 12a of the balance beam 12. In Fig. 3, this double strap 18 extends partially behind the fork 16 shown in section.
- the lever ratios of the balance beam 12 and the force of the spring 13 are dimensioned such that the tensioning roller 11, which is movably guided against the spring force, is in balance under the desired tensioning force acting on the rope.
- the tensioning force acting on the rope 6 is generated by the torque of the tractor reel 9. If, for example, the lever ratio between the short lever arm 12a corresponding to the distance between the articulation points 15-19 and the long lever arm 12b corresponding to the distance between the articulation points 16-20 is equal to 1: 3, the balance beam 12 is then in the equilibrium state when there is a spring force a force of 660 N, for example of 2000 N, acts on the tensioning roller 11. This tensioning force should correspond to the desired tension in the rope 6.
- the length of the actuating rod is dimensioned such that the hand lever 10 is pivoted somewhat in relation to the central stop position in the sense that the tractor reel 9 constantly applies the torque which is necessary in order to attach the balance beam 12 to the joint member 19 to allow a force of 666 N to act on the tension pulley 11
- the pulling power of the tractor reel must be sufficient be higher than the target force of 660 N.
- the balance beam 12 moves in the direction of the dot-dash pivot position when the tensioning force in the rope is increased.
- the handle 10 is adjusted via the actuating rod 14 to return the tractor reel 9, ie the cable drum 9a allows the cable to run off.
- the tensioning roller 11 resets under the force of the spring until the equilibrium state on the balance beam or the desired tensioning force in the rope 6 are restored.
- the hand lever 10 is then again in the position which corresponds to the desired tensioning force in the rope when the deflection roller 5 is at rest.
- the winch rests on a platform which can be moved back and forth in the direction of the pulling rope and on which the tensioning device acts.
- the drum of the winch is itself the movable element of the tensioning device.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Gespannthalten eines Zugseiles, das an einem unabhängig von der Seilkraft lageveränderlichen Gegenstand angeschlossen ist, insbesondere zum mittelbaren Gespannthalten eines zu einer hin- und herfahrbaren Kohlegewinnungsmaschine führenden Stromkabels, Das der Erfindung zugrunde liegende Problem ist aus der Notwendigkeit erwachsen, Energie- oder andere Leitungen an eine bewegliche Arbeitsmaschine über ein Hilfsmittel zu führen, über das die Leitungen in einer definierten Lage gehalten werden, damit sie von der ortsbeweglichen Arbeitsmaschine nicht überfahren werden können. Das meistgebräuchliche Hilfsmittel zur Lösung dieses Problems ist die Kabelschleppkette. Sie ist jedoch kostspielig und nicht für beliebig lange Fahrbewegungen einer Arbeitsmaschine verwendbar. Es gibt auch Kabeltrommeln mit anstehendem Drehmoment zum Gespannthalten eines Kabels, jedoch muß beim Abrollen des Kabels das Gegenmoment überwunden werden, wodurch die Spannung in dem Kabel ansteigt.The invention relates to a device for tensioning a traction rope, which is connected to an object that can change position independently of the rope force, in particular for indirectly tensioning an electric cable leading to a reciprocating coal-mining machine. The problem underlying the invention has arisen from the need for energy - Or to lead other lines to a mobile work machine via an aid via which the lines are held in a defined position so that they cannot be run over by the portable work machine. The most common tool to solve this problem is the cable drag chain. However, it is expensive and cannot be used for any length of movement of a work machine. There are also cable drums with pending torque to keep a cable taut, but when the cable is unrolled, the counter-torque must be overcome, which increases the tension in the cable.
Die Erfindung hat sich die Aufgabe gestellt, eine Vorrichtung zum Gespannhalten eines Zugseiles zu schaffen, mit der die Spannung im Zugseil weitgehend konstant gehalten werden kann, was sich dahingehend auswirkt, daß beim Abziehen des Zugseiles bei einem sich entfernenden Punkt, an den das Zugseil angeschlossen ist kein anstehendes Gegenmoment an einer Aufwickelvorrichtung überwunden werden muß.The invention has for its object to provide a device for holding a pull rope with which the tension in the pull rope can be kept largely constant, which has the effect that when pulling the pull rope at a moving point to which the pull rope is connected there is no counter torque to be overcome on a rewinder.
Die Lösung dieser Aufgabe besteht aus einer regelbar und reversierbar angetriebenen Winde, eingerichtet zur kontinuierlichen Abgabe eines Drehmomentes und somit einer kontinuierlichen Zugkraft im Zugseil, mit einer Trommel zur Aufnahme eines Endes des Zugseiles, aus einer Spannvorrichtung zur Ausübung einer Gegenspannkraft im Zugseil mit einem in Abhängigkeit von der Spannung im Zugseil beweglichen Element, an dem eine eine gewünschte Spannung bestimmende nachhaltige Federkraft angreift, die so groß bemessen ist, daß das bewegliche Element in Gleichgewichtslage ist, wenn die kontinuierliche Zugkraft der Winde gleich der von der Spannvorrichtung ausgeübten gewünschten Gegenspannkraft ist, und aus einer Steuerung zum Regeln der Winde in Abhängigkeit von Lageänderungen des beweglichen Elementes der Spannvorrichtung in dem Sinne und Ausmaß, daß das bewegliche Element in die Gleichgewichtslage zurückgestellt wird.The solution to this problem consists of a controllable and reversible driven winch, set up for the continuous delivery of a torque and thus a continuous pulling force in the pulling rope, with a drum for receiving one end of the pulling rope, and a tensioning device for exerting a counter-tensioning force in the pulling rope with one depending the tension in the traction rope movable element, which is acted upon by a sustainable spring force determining a desired tension, which is dimensioned so large that the movable element is in equilibrium when the continuous tensile force of the winch is equal to the desired counter-tensioning force exerted by the tensioning device, and from a control for regulating the winch as a function of changes in position of the movable element of the tensioning device in the sense and extent that the movable element is returned to the equilibrium position.
Die Vorrichtung gemäß der Erfindung mit einer Winde zum Auf- und Abwickeln des Zugseiles, das auch die Energieleitung selbst sein kann, kann als eine "Rafferwinde" bezeichnet werden, die über eine Steuervorrichtung in Abhängigkeit von Abweichungen von einer Soll-Spannung innerhalb des Zugseiles betätigt wird. Sie wird im Sinne des Aufwickelns gesteuert, wenn die Soll-Spannung im Zugseil sinkt, weil sich ein Bezugspunkt der Winde nähert, oder umgekehrt. Die konstante Spannung, die auf diese Weise in dem Zugseil unter dem anstehenden kontinuierlichen Drehmoment der Winde eingestellt werden kann, verhindert stoßweise Zugbelastungen an den Anschlußstellen und Einführungen von Energie- oder anderen Leitungen in die ortsbewegliche Arbeitsmaschine, da jeder Stoß von dem beweglichen Element der Spannvorrichtung aufgefangen wird.The device according to the invention with a winch for winding and unwinding the pull rope, which can also be the power line itself, can be referred to as a "winch winch" which is actuated via a control device as a function of deviations from a desired tension within the pull rope becomes. It is controlled in the sense of winding up when the target tension in the pull rope drops because a reference point is approaching the winch, or vice versa. The constant tension that can be adjusted in this way in the pulling rope under the forthcoming continuous torque of the winch prevents intermittent tensile loads at the connection points and the introduction of energy or other lines into the portable working machine, since every impact from the movable element of the tensioning device is caught.
Von der Erfindung wird auch ein Anwendungsbereich umfaßt, in dem das Ende des Zugseiles festgelegt ist und die Vorrichtung selbst ortsbeweglich. Hierbei ist beispielsweise an die Fälle gedacht, wo von einem Schiff ein Kabel abgeht, das unter den Schiffsbewegungen in senkrechter und/oder waagerechter Richtung in seiner Spannung konstant gehalten werden soll, beispielsweise beim Verlegen von Kabeln oder wenn das Schiff vor Anker liegt. Auch sind Fälle denkbar, bei denen die Spannung eines von einem in der Luft befindlichen Hubschraubers ausgehenden Seiles konstant gehalten werden soll, beispielsweise wenn mehrere Hubschrauber zum Tragen schwerer Lasten eingesetzt werden. Bisher hat man hierfür komplizierte elektronische Hubschrauber-Steuerungen eingesetzt.The invention also encompasses an area of application in which the end of the traction cable is fixed and the device itself can be moved. Here, for example, the cases are considered where a cable comes off a ship, that the tension should be kept constant under the ship's movements in the vertical and / or horizontal direction, for example when laying cables or when the ship is at anchor. Cases are also conceivable in which the tension of a rope originating from a helicopter in the air is to be kept constant, for example if several helicopters are used to carry heavy loads. So far, complicated electronic helicopter controls have been used for this.
Eine besonders empfehlenswerte spezielle Lösung gemäß der Erfindung besteht darin, daß die Winde ein handelsüblicher druckluftbetriebener Schlepperhaspel mit einem aus einer mittleren Haltstellung auf Vor- und Rückwärtsgang steuerbaren Handhebel ist, an dem ein den Lageänderungen des beweglichen Elementes der Spannvorrichtung folgendes Gestänge angreift,A particularly recommendable special solution according to the invention is that the winch is a commercially available compressed air-operated tractor reel with a hand lever that can be controlled from a middle stop position for forward and reverse gear, on which a linkage following the changes in position of the movable element of the tensioning device acts,
Das bewegliche Element der Spannvorrichtung zur Erzeugung der Gegenspannkraft im Seil ist zweckmäßig eine Spannrolle, über die das Zugseil geführt ist, wobei die Spannrolle an dem kurzen Hebelarm eines Waagebalkens angeordnet ist, an dessen längerem Hebelarm eine Zugfeder und eine zum Handhebel der Winde führende Betätigungsstange angeschlossen sind. Hierbei ist die Gleichgewichtslage der Spannrolle dann eingestellt, wenn die Federkraft den Waagebalken und über die Betätigungsstange den Handhebel der Winde in der Lage hält, in der das Moment aus Spannkraft an der Spannrolle und kurzem Hebelarm gleich dem Moment aus Federkraft und dem längeren Hebelarm, unter dem die Feder am Waagebalken angreift, gleich sind.The movable element of the tensioning device for generating the counter-tensioning force in the rope is expediently a tensioning roller over which the pull rope is guided, the tensioning roller being arranged on the short lever arm of a balance beam, to the longer lever arm of which a tension spring and an actuating rod leading to the hand lever of the winch are connected are. Here, the equilibrium position of the tensioning roller is set when the spring force holds the balance beam and, via the actuating rod, the hand lever of the winch in such a way that the moment of tensioning force on the tensioning roller and short lever arm equals the moment of spring force and the longer lever arm, below which the spring engages on the balance beam are the same.
Zur Einstellung der gewünschten Soll-Spannung im Zugseil kann das Hebelarmverhältnis und/oder die Federkraft änderbar sein. Ferner wird zweckmäßig die Lageänderung des beweglichen Elementes bzw. der Spannrolle durch Anschläge begrenzt,denen Schaltstellungen der Steuerung der Winde zugeordnet sind, in denen die Winde voll eingeschaltet ist. Wenn beispielsweise durch eine schnelle Verstellung des Gegenstandes, an dem das Zugseil letztlich angreift,ein starker Ausschlag des beweglichen Elementes bzw. der Spannrolle erfolgt, ist die Winde in einer Anschlaglage zum Ablaufenlassen oder Einholen des Zugseiles voll eingeschaltet.The lever arm ratio and / or the spring force can be changed to set the desired target tension in the pull rope. Furthermore, the change in position of the movable is useful Element or the tension roller limited by stops, which are assigned switching positions of the control of the winch, in which the winch is fully switched on. If, for example, a rapid deflection of the object on which the traction rope ultimately engages results in a strong deflection of the movable element or the tensioning pulley, the winch is fully switched on in a stop position to allow the traction rope to run off or to be brought in.
Wenn die Winde, die Spannvorrichtung und die Steuerung für die Winde eine transportable Einheit bilden, ist die Vorrichtung gemäß der Erfindung in Anpassung an örtliche Verhältnisse stets an dem günstigsten Platz aufzustellen.If the winch, the tensioning device and the control for the winch form a transportable unit, the device according to the invention is always to be installed in the most favorable place in adaptation to local conditions.
Um zu vermeiden, daß Energie- oder andere Leitungen, die gespannt gehalten werden sollenselbst über die Winde geführt werden müssen, wird zum mittelbaren Gespannthalten eines Stromkabels oder dergleichen vorgeschlagen, daß das Stromkabel um eine am Ende des Zugseiles befestigte Umlenkrolle geführt ist. Hierdurch benötigt die Vorrichtung gemäß der Erfindung außer der Energiezufuhr für die Winde keinerle. weiterer energieführenden Anschlüsse, wie auch über ein einfaches Seil und die Umlenkrolle jede Art von Kabeln oder flexiblen Leitungen gespannt gehalten werden kann. lediglich die Umlenkrolle entsprechend gewählt zu werden wobei auch die Möglichkeit besteht, eine Mehrfach- für verschiedene flexible Leitungen vorzusehen, die alle su ein und demselben beweglichen Gegenstand führen. Hierbei empfiehlt es sich, in Anpassung an unter Umständen unterschiedliche Durchmesser der verschiedenen Leitungen Umlenkrollen unterschiedlicher Durchmesser vorzusehen die ablaufenden Längen von Leitungen bei Lageänderungen der Mehrfach-Umlenkrolle und damit deren Spannungen unter sich möglichst gleichbleiben.In order to avoid that energy or other lines which are to be kept taut even through the winch, it is proposed to indirectly tension a power cable or the like that the power cable is guided around a pulley attached to the end of the pull rope. As a result, the device according to the invention does not require anything other than the energy supply for the winch. further energy-carrying connections, as well as any type of cable or flexible lines can be kept taut with a simple rope and the deflection roller. only the pulley to be chosen accordingly, with the possibility of a multiple To be provided for various flexible lines, all of which carry the same moving object. It is advisable to adapt to different diameters of the different lines To provide pulleys of different diameters the running lengths of lines when the position of the multiple deflection roller changes and thus the tensions between them remain as constant as possible.
In der Zeichnung ist ein Ausführungsheispiel einer "Rafferwinde" gemäß der
- Fig. 1 eine schematische Darstellung der Anordnung einer "Rafferwinde" in Verbindung mit einer fahrbaren Kohlegewinnungsmaschine,
- Fig. 2 eine Draufsicht auf die "Rafferwinde" als transportable Einheit und
- Fig. 3 einen Schnitt nach der Linie III-III in Fig. 2.
- F ig. 1 is a schematic representation of the arrangement of a "packer winch" in connection with a mobile coal extraction machine,
- F ig. 2 shows a plan view of the "packer winch" as a transportable unit and
- 3 shows a section along the line III-III in FIG. 2.
In Fig. 1 erkennt man eine vor Ort befindliche fahrbare Kohlegewinnungsmaschine 1, von der ein Stromkabel 2 ausgeht, das an einem ortsfest angeordneten Schaltkasten 3 angeschlossen ist. Dieses Stromkabel 2 soll unter den Fahrbewegungen der Kohlegewinnungsmaschine 1 mittels der erfindungsgemäßen "Rafferwinde" 4" gespannt gehalten werden, damit es nicht von der Kohlegewinnungsmaschine überfahren werden kann. Hierzu ist das Stromkabel 2 über eine Umlenkrolle 5 an den Schaltkasten 3 geführt, wobei die Umlenkrolle 5 der Endpunkt eines Zugseiles 6 ist, das zu der Winde gemäß der Erfindung führt. Das Stromkabel 2 wird somit über das Zugseil 6 mittelbar gespannt gehalten. Wenn die Kohlegewinnungsmaschine 1 nach links verfahren wird, folgt die Umlenkrolle 5 in die strichpurktiert dargestellte Endstellung 5'. Der im Ausführungsbeispiel maximale Verstellweg S der Umlenkrclle 5 ist die Hälfte des maximalen Verfahrweges der Kohlegewinnungsmasdine 1 nach links.In Fig. 1 you can see a mobile
Die "Rafferwinde" gemäß der Erfindung nach Fig. 2 und 3 umfaßt zunächst eine Bodenplatte 8 mit einem daran befestigten handelsüblichen druckluftbetriebenen Schlepperhaspel 9, dessen Handhebel 10 in Fig. 3 in waagerechter mittlerer Haltstellung steht. Dieser Handhebel ist in die beiden strichpunktiert dargestellten Schwenklagen für Vorwärts- und Rückwärtsgang verstellbar, so daß der Schlepperhaspel 9 reversierbar und mit regelbarem Antrieb ausgestattet ist. Auf die Trommel 9a des Schlepperhaspels 9 ist das Zugseil 6 aufgewickelt, das zu der Achse der Umlenkrolle 5 führt (Fig. 1).The "winch winch" according to the invention according to FIGS. 2 and 3 initially comprises a
Wie Fig. 2 zeigt, läuft das Zugseil 6 über eine lageveranderliche Spannrolle 11, von der aus die Steuerung für den Handhebel 10 des Schlepperhaspels 9 betätigt wird. Die Spannrolle 11 ist an dem kurzen Hebelarm 12a eines Waagebalkens 12 angeordnet, an dessen längerem Hebelarm 12b eine Zugfeder 13 und eine zum Handhebel 10 führende Betätigungsstange 14 angeschlossen sind. Der Waagebalken 12 ist um die Drehachse 15 einer Gabel 16, die über eine Stütze 17 mit der Grundplatte 8 verbunden ist, schwenkbar gelagert. Die Spannrolle 11 ist über eine Doppellasche 18 am Ende des kurzen Hebelarmes 12a des Waagebalkens 12 gelenkig befestigt. In Fig. 3 erstreckt sich diese Doppellasche 18 zum Teil hinter der geschnitten dargestellten Gabel 16.As shown in FIG. 2, the
Die Hebelverhältnisse des Waagebalkens 12 und die Kraft der Feder 13 sind so bemessen, daß die entgegen der Federkraft beweglich geführte Spannrolle 11 unter der am Seil angreifenden gewünschten Spannkraft im Gleichgewicht ist. Die am Seil 6 angreifende Spannkraft wird von dem anstehenden Drehmoment des Schlepperhaspels 9 erzeugt. Ist beispielsweise das Hebelverhältnis zwischen dem kurzen Hebelarm 12a entsprechend dem Abstand der Gelenkpunkte 15 - 19 und der, langen Hebelarm 12b entsprechend dem Abstand der Gelenkpunkte 16 - 20 gleich 1 : 3, so befindet sich der Waagebalken 12 dann im Gleichgewichtszustand, wenn bei einer Federkraft von beispielsweise 2000 N an der Spannrolle 11 eine kraft von 660 N angreift. Diese Spannkraft soll der gewünschten Spannung im Seil 6 entsprechen. Bei der Gleichgewichtslage des Waagebalkens 12 ist die Länge der Betätigungsstange so bemessen, daß der Handhebel 10 etwas gegenüber der mittleren Haltstellung verschwenkt ist in dem Sinne, daß der Schlepperhaspel 9 ständig das Moment aufbringt, was erfordarlich ist, um an dem Gelankpundt 19 das Waagebalkens 12 über die Spannrolle 11 eine kraft von 666 N angreifen zu lassen Die Zugleistung des Schlepperhaspels muß also reichtich höher sein als es der Sollkraft von 660 N entspricht.The lever ratios of the
Wenn - bezogen auf den Anwendungsfall nach Fig. 1 - die Kohlegewinnungsmaschine 1 nach links auswandert und damit auch die Umlenkrolle 5, so erhöht sich die Spannkraft im Seil 6 mit der Folge, daß die Spannrolle 11 entsprechend auswandert. Der maximale, durch einen Anschlag 21 begrenzte Ausschlag des Waagebalkens 12 ist in Fig. 2 strichpunktiert dargestellt. Der in die andere Richtung gehende Ausschlag des Waagebalkens 12 ist durch einen Anschlag 22 begrenzt. Den beiden Anschlägen sind Schaltstellungen der Steuerung zugeordnet, in denen der Schlepperhaspel 9 in der einen oder anderen Drehrichtung voll eingeschaltet ist.If - based on the application according to FIG. 1 - the
Wie gesagt, verstellt sich der Waagebalken 12 in Richtung auf die strichpunktierte Schwenklage dann, wenn die Spannkraft im Seil erhöht wird. Hierdurch wird über die Betätigungsstange 14 der Handhabel 10 auf Rücklauf des Schlepperhaspels 9 verstellt, d. h. die Seiltrommel 9a läßt Seil ablaufen. Hierdurch stellt sich die Spannrolle 11 unter der Kraft der Feder wieder zurück, bis der Gleichgewichtszustand am Waagebalken bzw. die Soll-Spannkraft im Seil 6 wiederhergestellt sind. Der Handhebel 10 befindet sich dann wieder in der Stellung, die bei Ruhelage der Umlenkrolle 5 der gewünschten Spannkraft im Seil entspricht. Sinkt die Seilkraft beispielsweise beim Verfahren der Kohlegewinnungsmaschine nach rechts, schwenkt der Waagebalken 12 im anderen Sinne und die Trommel 9a wird im Sinne eines Aufspulens des Seiles 6 gedreht. Stets wird der Schlepperhaspel 9 durch die beschriebene Steuerung in Abhängigkeit von Lageänderungen der Spannrolle 11 in demjenigen Drehsinn eingeschaltet, der die Spannrolle in Gleichgewichtslage zurückzustellen sucht, in der der Schlepperhaspel 9 abgebremst ist oder auf die Trommel 9a ein ständiges bestimmtes Drehmoment einwirkt.As said, the
Abweichend von dem gezeichneten Ausführungsbeispiel der Erfindung ist es denkbar, daß die Winde auf einer in Richtung des Zugseils hin- und herbeweglichen Plattform ruht, an der die Spannvorrichtung angreift. Bei dieser Ausführungsform ist die Trommel der Winde selbst das bewegliche Element der Spannvorrichtung.Deviating from the illustrated embodiment of the invention, it is conceivable that the winch rests on a platform which can be moved back and forth in the direction of the pulling rope and on which the tensioning device acts. In this embodiment, the drum of the winch is itself the movable element of the tensioning device.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT79102488T ATE1575T1 (en) | 1978-07-25 | 1979-07-17 | DEVICE FOR KEEPING A TENSIONED ROPE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2832567A DE2832567C2 (en) | 1978-07-25 | 1978-07-25 | Device for holding a rope or similar thread-like material under tension |
DE2832567 | 1978-07-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0007554A1 true EP0007554A1 (en) | 1980-02-06 |
EP0007554B1 EP0007554B1 (en) | 1982-09-22 |
Family
ID=6045316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79102488A Expired EP0007554B1 (en) | 1978-07-25 | 1979-07-17 | Device for maintaining the tension in a tow cable |
Country Status (5)
Country | Link |
---|---|
US (1) | US4318533A (en) |
EP (1) | EP0007554B1 (en) |
JP (1) | JPS5521392A (en) |
AT (2) | AT363884B (en) |
DE (1) | DE2832567C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022053695A1 (en) * | 2020-09-14 | 2022-03-17 | Nasekomo B.V. | Guiding chain carrier system |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504023A (en) * | 1984-05-23 | 1985-03-12 | The United States Of America As Represented By The United States Department Of Energy | Apparatus producing constant cable tension for intermittent demand |
JP2696678B2 (en) * | 1995-01-11 | 1998-01-14 | 西部電機株式会社 | Winch device |
US7028989B2 (en) * | 2002-11-27 | 2006-04-18 | Dura Global Technologies, Inc. | Tire carrier |
US7395899B2 (en) * | 2003-01-27 | 2008-07-08 | Exterior Elevator, Llc | Method and apparatus for reaching from outside an upper level of a tall structure |
AT414215B (en) * | 2003-02-12 | 2006-10-15 | Peter Ziger | ANNEX TO PLASMA PROCESSING |
US7537087B2 (en) * | 2004-01-23 | 2009-05-26 | Exterior Elevator, Llc | Method and apparatus for reaching from outside an upper level of a tall structure |
US20150136525A1 (en) * | 2005-07-19 | 2015-05-21 | Marvin M. May | Method and apparatus for reaching from outside an upper level of a tall structure |
US8766812B2 (en) * | 2010-10-28 | 2014-07-01 | Us Tower Corporation | Tension sensor assembly |
US9321616B2 (en) | 2013-03-14 | 2016-04-26 | Marvin M. May | Lifting systems |
US9346656B2 (en) | 2014-07-01 | 2016-05-24 | Marvin M. May | Stabilization and control of a crane load |
US10207905B2 (en) | 2015-02-05 | 2019-02-19 | Schlumberger Technology Corporation | Control system for winch and capstan |
US11278440B2 (en) | 2015-06-09 | 2022-03-22 | Christopher Richard Showalter | Orthopedic device providing metered toe traction with variable adduction, dorsiflexion and rotation angles, including lateral glide of the first metatarsal head |
US11713118B1 (en) | 2017-03-06 | 2023-08-01 | Hoverfly Technologies. Inc. | Constant tension tether management system for a tethered aircraft |
KR20190128191A (en) * | 2017-03-06 | 2019-11-15 | 호버플라이 테크놀로지스 인코포레이티드 | Continuous Tension Tether Management System for Tethered Aircraft |
US10042067B1 (en) * | 2017-09-25 | 2018-08-07 | The United States Of America As Represented By The Secretary Of The Navy | Safety system for a towed source |
CN112855152A (en) * | 2021-01-04 | 2021-05-28 | 天地上海采掘装备科技有限公司 | Control method of special towing system for coal mining machine |
CN113484414B (en) * | 2021-07-01 | 2023-05-19 | 上海市市政公路工程检测有限公司 | Method for surveying gap of inner wall of closed body |
CN114044413B (en) * | 2021-11-18 | 2022-06-28 | 中国科学院空间应用工程与技术中心 | Cable arranging mechanism for linear motion and load test device |
CN114408783A (en) * | 2021-12-24 | 2022-04-29 | 宜昌测试技术研究所 | Constant tension traction and cable storage winch control system |
CN114427318B (en) * | 2021-12-31 | 2024-05-17 | 国网江苏省电力有限公司建设分公司 | Electric pole and torque difference automatic adjustment method thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE874209C (en) * | 1951-05-13 | 1953-04-20 | Juergen Dipl-Ing Ortmann | Movable cable feed for electrical systems with partly portable devices, especially conveyor systems |
DE1860884U (en) * | 1962-09-08 | 1962-10-25 | Wurster & Dietz Maschinenfabri | CABLE FEEDING, PREFERRED FOR LINEAR TO-AND-DOWN CARRIAGE OR SLEDGE. |
DE1242541B (en) * | 1964-02-14 | 1967-06-22 | Hansjoachim Von Hippel Dr Ing | Energy supply device for extraction machine pulled back and forth on the coal face |
DE1971857U (en) * | 1966-08-02 | 1967-11-02 | Windmoeller & Hoelscher | WEB TENSION CONTROL DEVICE FOR RUNNING PAPER OR PLASTIC FILMS. |
DE1499061A1 (en) * | 1965-05-05 | 1969-09-18 | Ki Zd Stroidormash | Hydraulic drive of a machine for winding and unwinding flexible threads |
DE1937716A1 (en) * | 1968-07-24 | 1970-01-29 | Revuelta Fidel Carrancio | Device for lifting and clinical suspension of sick or injured persons |
DE7048307U (en) * | 1971-11-04 | Berstorff H Maschinenbau Gmbh | Device for keeping the tension of wires, in particular steel cords and the like, constant | |
DE2526461A1 (en) * | 1974-11-04 | 1976-05-06 | Continental Oil Co | CONTROL SYSTEM FOR POSITIONING EXTENDABLE PIPING SYSTEMS |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1433079A (en) * | 1921-04-04 | 1922-10-24 | George H Jett | Electric mooring and towing gear apparatus or system |
US2563660A (en) * | 1949-01-12 | 1951-08-07 | Cellophane Sa | Constant tension drive for web reels |
DE1059066B (en) * | 1957-03-13 | 1959-06-11 | Siemens Ag | Device for maintaining a constant tension in an electrical connection line to moving parts of machines |
US3032321A (en) * | 1960-01-29 | 1962-05-01 | Plumettaz Sa | Control devices for powered winches |
US3045974A (en) * | 1960-11-07 | 1962-07-24 | Aerialmatic Engineering Ltd | Reversible power-driven winch with automatic control of reverse speed |
FR1578916A (en) * | 1968-05-06 | 1969-08-22 | ||
BE758495A (en) * | 1969-11-19 | 1971-05-05 | Inst Francais Du Petrole | STORAGE AND HANDLING DEVICE FOR A FLEXIBLE LINE ON BOARD A SHIP |
-
1978
- 1978-07-25 DE DE2832567A patent/DE2832567C2/en not_active Expired
-
1979
- 1979-02-01 AT AT0076879A patent/AT363884B/en not_active IP Right Cessation
- 1979-07-17 AT AT79102488T patent/ATE1575T1/en active
- 1979-07-17 EP EP79102488A patent/EP0007554B1/en not_active Expired
- 1979-07-19 US US06/058,854 patent/US4318533A/en not_active Expired - Lifetime
- 1979-07-25 JP JP9380379A patent/JPS5521392A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7048307U (en) * | 1971-11-04 | Berstorff H Maschinenbau Gmbh | Device for keeping the tension of wires, in particular steel cords and the like, constant | |
DE874209C (en) * | 1951-05-13 | 1953-04-20 | Juergen Dipl-Ing Ortmann | Movable cable feed for electrical systems with partly portable devices, especially conveyor systems |
DE1860884U (en) * | 1962-09-08 | 1962-10-25 | Wurster & Dietz Maschinenfabri | CABLE FEEDING, PREFERRED FOR LINEAR TO-AND-DOWN CARRIAGE OR SLEDGE. |
DE1242541B (en) * | 1964-02-14 | 1967-06-22 | Hansjoachim Von Hippel Dr Ing | Energy supply device for extraction machine pulled back and forth on the coal face |
DE1499061A1 (en) * | 1965-05-05 | 1969-09-18 | Ki Zd Stroidormash | Hydraulic drive of a machine for winding and unwinding flexible threads |
DE1971857U (en) * | 1966-08-02 | 1967-11-02 | Windmoeller & Hoelscher | WEB TENSION CONTROL DEVICE FOR RUNNING PAPER OR PLASTIC FILMS. |
DE1937716A1 (en) * | 1968-07-24 | 1970-01-29 | Revuelta Fidel Carrancio | Device for lifting and clinical suspension of sick or injured persons |
DE2526461A1 (en) * | 1974-11-04 | 1976-05-06 | Continental Oil Co | CONTROL SYSTEM FOR POSITIONING EXTENDABLE PIPING SYSTEMS |
Non-Patent Citations (1)
Title |
---|
H. FRITZSCHE, Lehrbuch der Bergbaukunde, 2. Band, 7. Auflage, 1950, SPRINGER-VERLAG, Berlin/Gottingen/Heidelberg, Seiten 485 bis 491 * Seite 488, Zeilen 35 bis 37 * * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022053695A1 (en) * | 2020-09-14 | 2022-03-17 | Nasekomo B.V. | Guiding chain carrier system |
Also Published As
Publication number | Publication date |
---|---|
DE2832567C2 (en) | 1985-03-21 |
JPS5521392A (en) | 1980-02-15 |
US4318533A (en) | 1982-03-09 |
EP0007554B1 (en) | 1982-09-22 |
AT363884B (en) | 1981-09-10 |
ATE1575T1 (en) | 1982-10-15 |
ATA76879A (en) | 1981-02-15 |
DE2832567A1 (en) | 1980-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0007554B1 (en) | Device for maintaining the tension in a tow cable | |
EP0334187B1 (en) | Mobile telescopic jib crane | |
DE3241380C2 (en) | Control device for a crane suspension | |
DE2245818A1 (en) | MANIPULATOR | |
DE10113561B4 (en) | Feed device for a piling and / or drilling device | |
DE1295480B (en) | Lift truck | |
DE3922372A1 (en) | FEED DEVICE FOR A STONE DRILLING MACHINE | |
EP0142537A1 (en) | Installation for displacing aircrafts. | |
DE1239539B (en) | Device for guiding and storage of energy-carrying lines or the like. | |
DE3131624A1 (en) | Grab with controllable movement pattern of the cutting edges of grab shells | |
DE3620290A1 (en) | LINEAR DRIVE UNIT | |
CH658269A5 (en) | TAPE FEEDER FOR SEWING MACHINES. | |
DE176324C (en) | ||
DE2451547A1 (en) | Ship warping and anchor winch - has stowable drum motor which is controlled to suit main drum operating conditions and rope is hauled in by two grooved drums | |
DE257294C (en) | ||
DE3719811A1 (en) | Force transmission for length-variable handles (helves) of garden implements | |
DE907937C (en) | Vehicle winch for large pulling forces | |
DE1756218A1 (en) | Load handling order | |
DE2509303C3 (en) | Rope tensioning device | |
DE214598C (en) | Disengageable coupling for winch drums arranged on a common axis | |
DE1237281B (en) | Cable drive for remote drive trolley with compensation trolley | |
DE69208365T2 (en) | METHOD FOR ALIGNING A LONG-TERM LOAD DURING DELIVERY | |
DE537878C (en) | Auxiliary device for elongated airships tied to the mast | |
DE895306C (en) | Transport system with transport containers which are firmly connected to at least one continuously rotating pulling element | |
DE1265C (en) | Mechanical coal puller for locomotives |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT LU NL SE |
|
17P | Request for examination filed | ||
ITF | It: translation for a ep patent filed |
Owner name: LENZI & C. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT LU NL SE |
|
REF | Corresponds to: |
Ref document number: 1575 Country of ref document: AT Date of ref document: 19821015 Kind code of ref document: T |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19830531 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19830630 Year of fee payment: 5 Ref country code: AT Payment date: 19830630 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19830705 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19830731 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19830731 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19840717 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19840718 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19840731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19850201 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19881118 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19900613 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19900731 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19910731 |
|
BERE | Be: lapsed |
Owner name: PORT WALTER Effective date: 19910731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19920331 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
EUG | Se: european patent has lapsed |
Ref document number: 79102488.8 Effective date: 19850612 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |