EP1472175A1 - Device for detecting the load on a hoisting gear - Google Patents

Device for detecting the load on a hoisting gear

Info

Publication number
EP1472175A1
EP1472175A1 EP03704562A EP03704562A EP1472175A1 EP 1472175 A1 EP1472175 A1 EP 1472175A1 EP 03704562 A EP03704562 A EP 03704562A EP 03704562 A EP03704562 A EP 03704562A EP 1472175 A1 EP1472175 A1 EP 1472175A1
Authority
EP
European Patent Office
Prior art keywords
load
rope
cable
hoist
cables
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
EP03704562A
Other languages
German (de)
French (fr)
Other versions
EP1472175B1 (en
Inventor
Hermann Franzen
Jannis Moutsokapas
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.)
Demag Cranes and Components GmbH
Original Assignee
Gottwald Port Technology 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
Application filed by Gottwald Port Technology GmbH filed Critical Gottwald Port Technology GmbH
Publication of EP1472175A1 publication Critical patent/EP1472175A1/en
Application granted granted Critical
Publication of EP1472175B1 publication Critical patent/EP1472175B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • B66D1/58—Safety gear responsive to excess of load
    • 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
    • B66C13/16—Applications of indicating, registering, or weighing devices

Definitions

  • the invention relates to a device for load detection on a hoist, in particular on the hoist of a crane for container handling, with at least one cable drum, at least one drive motor and a hoist gear arranged between the drive motor and the cable drum, which is arranged in a hoist gear housing supported on one side on the hoist frame, the Hoist gear housing is pivotally mounted in the area of one of its front ends about an axis running parallel to the rope drum axis and can be supported in the area of its other front end on at least one torque support, which is assigned a measuring device for indirect detection of the load hanging on the ropes.
  • the detection of the load picked up by the crane is of central importance. It serves the safety of the crane and the personnel entrusted with it, e.g. in the event of an overload, the crane can be switched off, as a weighing device to determine the load and its load distribution in the ropes or to determine the center of gravity of the load itself, e.g. with unevenly loaded containers.
  • the load recording also serves as an indicator for the statistical determination of the maintenance intervals in connection with the counted operating hours.
  • the load is recorded in the rope or in the lifting device.
  • the measurement of the axial force in the hoist gear, which is caused by the helical toothing of the spur gears, as a proportional magnitude of the rope force is known, but fails because of the inaccuracy of the load measurement.
  • the interference from thermal expansion and external temperature effects can only be compensated for with considerable technical effort.
  • a known technique for load detection uses the mounting of the hoist gear on a torque arm.
  • the support force measured on the torque arm is proportional to the rope force and thus that hanging on the ropes Dimensions.
  • the load detection works relatively easily if all the cables unwound from the cable drums are guided tangentially in the same direction. If the ropes are unwound in different directions, conventional load detection using the torque arm is not possible.
  • the rope force can be measured in each rope strand.
  • a measuring device is installed at the end of the rope, the sum of all measured rope forces then corresponds to the mass of the load.
  • the measuring device must be supplied with external energy, preferably electrical energy, which must be transported from the crane to the end of the rope.
  • the energy readings and also the measuring devices are located directly on the load suspension device. This means that the power lines must be protected against external mechanical influences, which causes considerable technical effort and thus high costs.
  • the object of the present invention is to provide a device for load detection on a hoist, in which the load detection, protected from external mechanical influences, takes place directly on the cable winch and is capable of handling both the entire load hanging on the cables and individual loads and if necessary to determine the center of gravity of the load.
  • the guiding of the four load lines in two essentially transversely aligned levels is the prerequisite for the detection of the load on a hoist with four ropes, as is used in particular for container handling. While two load ropes of each load rope pair are directly unwound and wound up vertically from the rope drum, the remaining two other load ropes are initially guided essentially horizontally, in order then to deflect them vertically around deflection rollers.
  • the Double rope drums are designed and equipped in such a way that when the rope drums are driven via the common gear, all four ropes are wound up or unwound simultaneously and synchronously. Since the housing is pivotally articulated on one side and supported on the other side on a torque arm with a measuring device, the forces representing the cable forces can be easily detected on the measuring device.
  • the first and the second load management level intersect in a third plane, which through the axis of rotation of the Double cable drums and the swivel axis of the hoist gear run, which is provided on the side of the gear housing facing away from the deflection rollers and the torque support and that the torque support is assigned a force transducer for detecting the total sum of the effective cable forces.
  • the proposal of the invention defines a geometric dependency between the load management levels and thus the load cables and the pivot axis of the transmission housing, by means of which the distances from the center of the load cable to the axis of rotation are the same for both cables guided in the load control levels. Regardless of the individual rope forces in the rope strands, this arrangement ensures that a force transducer integrated in the torque arm always captures the entire sum of the attached load.
  • the pivot axis is provided on the side of the transmission housing facing the deflection rollers and away from the torque support, that measurement axes are arranged in the deflection rollers for detecting the vertical forces acting there of the articulated load cables and that the cable forces of the vertically guided other load ropes can be detected in the force transducer of the torque arm adjacent to the load ropes.
  • the rope forces can be recorded separately at least in pairs. While the force transducer in the torque arm detects the effective forces resulting from the directly vertically guided ropes, the rope forces of the other ropes, initially guided approximately horizontally and then deflected, can be transferred via Sensors are detected that are located in the axes of the deflection roller. In this way, a more precise statement can be made about the load distribution in the rope strands without the measuring devices, as in the prior art described above, having to be arranged in the vicinity of the load suspension device.
  • the rope forces of the load ropes vertically guided in the second load management plane can be detected in the force transducers by two torque supports spaced apart from one another and spaced apart geometrically in relation to the hoist gearbox housing and the distances to the load ropes is determinable, the pivot axis of the hoist gear housing allowing tilting movements.
  • the rope load to be determined can be easily detected in the force measuring devices, loads of different sizes are recorded in the two force measuring devices, this is an indication of an off-center center of gravity. Since the different rope loads can also be recorded on the deflection pulleys, the geometric center of gravity of the load can be determined mathematically and evaluated accordingly.
  • variable data of the cable distances within the second load management level are determined and monitored electronically. This monitoring is known in principle and is used here to obtain clear measurement signals at every lifting height.
  • the invention proposes a load detection on a hoist, which is carried out directly on the cable winch. The measuring device is thereby largely protected from external measuring influences, and there are no accelerations which occur during relative measurements with load cells carried on the load suspension device. The invention always measures absolutely.
  • FIG. 3 shows a simplified schematic 3D representation of the lifting mechanism according to FIG.
  • Fig. 4 is a schematic 3D representation of a first embodiment
  • Fig. 5 is a schematic 3D representation of a second embodiment of the
  • FIG 1 the overall view of a crane system is shown in a simplified representation, in which the present invention can be used.
  • the elevated bridge crane 1 consists of the bridge 2 and the trolley 3. From the hoist 4 and the two double cable drums 4.1 and 4.2, two, that is a total of four cables 5.1 to 5.4 lead to the load-carrying device 6, which carries the load 7.
  • the load is an ISO container.
  • the hoist 4 consists of the transmission 8 with the transmission housing, the drive motors 9, the two double cable drums 4.1 and 4.2 and the two deflection rollers 10.1 and 10.2.
  • the gear housing 8 is supported within the cat 3 on the two gear bearings 11.1 and 11.2 and the torque arm 12.
  • the load ropes 5.3 and 5.4 can be seen in a first horizontal load management level between the double cable drum 4.1 or 4.2 and the deflecting pulleys 10.1 or 10.2, while the load ropes 5.1 and 5.2 directly from the load drums 4.1 and 4.2 vertically in a common vertical second load management level are led.
  • the pivot axis 13 of the gear housing 8 runs through the two gear bearings 11.1 and 11.2, it lies in a plane 14 which passes through the intersection of the two cable guide levels on the one hand and the axis of rotation of the cable drums 4.1 and 4.2. In the vertical and horizontal cable run shown, the dimensional distances from the center of the cable to the pivot axis 13 remain the same size under these geometric conditions, ie y is equal to z.
  • FIG. 3 The solution described above is shown in FIG. 3 in a schematic 3D representation, again in a geometrically simplified manner.
  • the gear housing 8 is supported within the trolley 3 on the pivot axis 13 running through the gearbox bearings 11.1 and 11.2 and on the torque support 12.
  • the pivot axis 13 lies in the dash-dotted third plane 14, which runs through the intersection of the two load-bearing planes and the axis of rotation of the cable drums 4.1 and 4.2.
  • the dimensional distances from the center of the rope to the axis of rotation 13 remain the same, i.e. y is equal to z.
  • y describes the distance from the load cable 5.1 to the pivot axis 13 and z the distance from the load cable 5.3 to the pivot axis 13.
  • y describes the distance from the load cable 5.1 to the pivot axis 13
  • z the distance from the load cable 5.3 to the pivot axis 13.
  • the force transducer 15 integrated in the torque arm 12 and not shown in detail detects the total sum of the load, regardless of the individual rope forces in the rope strands 5.1 to 5.4.
  • FIG. 1 Another alternative of the invention is shown in FIG.
  • the gear case 8 is supported within the trolley 3 on the two gearbox bearings 16.1 and 16.2 and on the torque support 17.
  • the cable forces in the load cables 5.3 and 5.4 are determined via the measuring axes 19.1 and 19.2 in the deflection pulleys 10.1 and 10.2, the force transducer integrated in the torque support 17 18 captures the sum of the load from the individual vertically acting rope forces in the rope strands 5.1 and 5.2.
  • This solution thus enables the rope forces on both transmission sides to be recorded separately; a statement about the center of gravity of the load 7 cannot be made with this arrangement.
  • FIG. 5 shows a further alternative of the invention, here too the lifting mechanism is designated by 4.
  • the two double rope drums have the item numbers 4.1 and 4.2.
  • the load ropes 5.3 and 5.4 are guided over the deflection pulleys 10.1 and 10.2, which are provided with measuring axes 19.1 and 19.2 as in the solution according to FIG. 4 and enable the rope forces in the rope strands 5.3 and 5.4 to be recorded separately.
  • the gear housing 8 is supported within the trolley 3 on the gear bearing 20 and the two torque supports 21.1 and 21.2.
  • Integrated torque transducers 22.1 and 22.2 are provided in the torque supports 21.1 and 21.2, which individually detect the vertically acting rope forces in the rope strands 5.1 and 5.2.
  • the following data is known:

Abstract

The invention relates to a device for detecting the load on a hoisting gear (4) of a crane for transporting a container. Said device comprises a cable drum (4.1,4.2), a drive motor (9), and a hoisting gear (8) arranged between the drive motor and the cable drum. The hoisting gear housing is pivotably mounted about an axis extending in a parallel manner in relation to the cable drum axis and is supported on the opposite end on at least one torque converter bearing (12) which is associated with a measuring device (15) for indirect detection of an overhead load on the cables (5.1-5.4). According to the invention, in order to produce a device for detecting the load on a hoisting gear, one respective load cable of each pair of load cables is guided on a common first substantially horizontally extending load guiding plane tangent to the double cable drums and is deflected on a vertical level by deflection rollers and the other two load cables of each pair of load cables are guided vertically on a common second load guiding plane which is tangent to the double cable drums in a hoisting device consisting of two synchronously drivable double cable drums having the same axis, respectively provided with a pair of load cables which can be wound up and down in the same direction.

Description

Einrichtung zur Lasterfassung an einem Hubwerk Load sensing device on a hoist
Beschreibungdescription
Die Erfindung betrifft eine Einrichtung zur Lasterfassung an einem Hubwerk, insbesondere am Hubwerk eines Kranes für den Containerumschlag, mit mindestens einer Seiltrommel, mindestens einem Antriebsmotor sowie einem zwischen Antriebsmotor und Seiltrommel angeordnetem Hubwerksgetriebe, das in einem einseitig am Hubwerksrahmen abgestützten Hubwerksgetriebegehäuse angeordnet ist, wobei das Hubwerksgetriebegehäuse im Bereich eines seiner stirnseitigen Enden um eine parallel zur Seiltrommelachse verlaufenden Achse schwenkbar gelagert ist und im Bereich seines anderen stirnseitigen Endes auf mindestens einer Drehomomentstütze abstützbar ist, der eine Messeinrichtung zur indirekten Erfassung der an den Seilen hängenden Last zugeordnet ist.The invention relates to a device for load detection on a hoist, in particular on the hoist of a crane for container handling, with at least one cable drum, at least one drive motor and a hoist gear arranged between the drive motor and the cable drum, which is arranged in a hoist gear housing supported on one side on the hoist frame, the Hoist gear housing is pivotally mounted in the area of one of its front ends about an axis running parallel to the rope drum axis and can be supported in the area of its other front end on at least one torque support, which is assigned a measuring device for indirect detection of the load hanging on the ropes.
Bei automatisch betriebenen Kranen, insbesondere Kranen für den Containerumschlag ist die Erfassung der vom Kran aufgenommenen Last von zentraler Bedeutung. Sie dient der Sicherheit des Kranes und des damit betrauten Personals, damit z.B. bei Überlast der Kran abgeschaltet werden kann, als Wiegeeinrichtung zur Ermittlung der Last und deren Lastverteilung in den Seilen oder zur Ermittlung des Schwerpunktes der Last selbst, z.B. bei ungleichmäßig beladenen Containern. Schließlich dient die Lasterfassung auch als Indikator zur statistischen Ermittlung der Wartungsintervalle in Verbindung mit den gezählten Betriebsstunden.In the case of automatically operated cranes, in particular cranes for container handling, the detection of the load picked up by the crane is of central importance. It serves the safety of the crane and the personnel entrusted with it, e.g. in the event of an overload, the crane can be switched off, as a weighing device to determine the load and its load distribution in the ropes or to determine the center of gravity of the load itself, e.g. with unevenly loaded containers. Finally, the load recording also serves as an indicator for the statistical determination of the maintenance intervals in connection with the counted operating hours.
Die Lasterfassung erfolgt bei herkömmlichen Anlagen im Seil oder in der Hubwerkseinrichtung. Das Messen der Axialkraft im Hubwerksgetriebe, welche durch die Schrägver∑ahnung der Stirnräder verursacht wird, als proportionale Größe der Seilkraft ist bekannt, sie scheitert aber an der Ungenauigkeit der Lastmessung. Die Störeinflüsse aus der Wärmedehnung und äußere Temperatureinwirkungen können nur mit erheblichem technischem Aufwand kompensiert werden.In conventional systems, the load is recorded in the rope or in the lifting device. The measurement of the axial force in the hoist gear, which is caused by the helical toothing of the spur gears, as a proportional magnitude of the rope force is known, but fails because of the inaccuracy of the load measurement. The interference from thermal expansion and external temperature effects can only be compensated for with considerable technical effort.
Eine bekannte Technik zur Lasterfassung verwendet die Lagerung des Hubwerksgetriebes an einer Drehmomentstütze. Hierbei ist die an der Drehmomentstütze gemessene Stützkraft proportional der Seilkraft und damit der an den Seilen hängenden Masse. Die Lasterfassung funktioniert relativ einfach, wenn alle von den Seiltrommeln abgewickelten Seile tangential in die gleiche Richtung geführt werden. Werden die Seile in unterschiedlichen Richtungen abgewickelt, dann ist die herkömmliche Lasterfassung über die Drehmomentenstütze nicht möglich.A known technique for load detection uses the mounting of the hoist gear on a torque arm. Here, the support force measured on the torque arm is proportional to the rope force and thus that hanging on the ropes Dimensions. The load detection works relatively easily if all the cables unwound from the cable drums are guided tangentially in the same direction. If the ropes are unwound in different directions, conventional load detection using the torque arm is not possible.
Sind mehrere Hubseile an einer gemeinsamen Trommel gewickelt, so kann die Messung der Seilkraft in jedem Seilstrang erfolgen. Hierbei wird an dem Seilende eine Messvorrichtung installiert, die Summe aller gemessenen Seilkräfte entspricht dann der Masse der Last. Hierbei muss allerdings die Messvorrichtung mit externer Energie, vorzugsweise elektrischer, versorgt werden, welche vom Kran zum Seilende transportiert werden muss. Die Energielertungen und auch die Messvorrichtungen befinden sich direkt am Lastaufnahmemittel. Das bedeutet, dass die Energieleitungen gegen äußere mechanische Einwirkungen geschützt werden müssen, was einen erheblichen technischen Aufwand und damit hohe Kosten verursacht.If several hoist ropes are wound on a common drum, the rope force can be measured in each rope strand. A measuring device is installed at the end of the rope, the sum of all measured rope forces then corresponds to the mass of the load. Here, however, the measuring device must be supplied with external energy, preferably electrical energy, which must be transported from the crane to the end of the rope. The energy readings and also the measuring devices are located directly on the load suspension device. This means that the power lines must be protected against external mechanical influences, which causes considerable technical effort and thus high costs.
Aufgabe der vorliegenden Erfindung ist es, eine Einrichtung zur Lasterfassung an einem Hubwerk vorzusehen, bei der die Lasterfassung, geschützt vor äußeren mechanischen Einwirkungen, unmittelbar an der Seilwinde erfolgt und die in der Lage ist, sowohl die gesamte an den Seilen hängende Last wie auch Einzellasten und ggf. Schwerpunktlagen der Last zu erfassen.The object of the present invention is to provide a device for load detection on a hoist, in which the load detection, protected from external mechanical influences, takes place directly on the cable winch and is capable of handling both the entire load hanging on the cables and individual loads and if necessary to determine the center of gravity of the load.
Zur Lösung der Aufgabe wird erfmdungsgemäß vorgeschlagen, dass bei einem Hubwerk mit zwei achsgleichen, synchron antreibbaren Doppel-Seiltrommeln mit jeweils einem gleichsinnig auf- und abwickelbaren Lastseilpaar, jeweils ein Lastseil jedes Lastseilpaares in einer gemeinsamen ersten, im wesentlichen horizontal verlaufenden, die Doppel- Seiltrommeln tangierenden Lastfuhrungsebene geführt und um Umlenkrolien in die Vertikale umgeleitet ist und die beiden anderen Lastseile jedes Lastseilpaares in einer gemeinsamen zweiten, die Doppelseititrommeln tangierenden Lastfuhrungsebene vertikal geführt sind.To solve the problem, it is proposed according to the invention that, in a hoist with two axially identical, synchronously drivable double rope drums, each with a load rope pair that can be wound and unwound in the same direction, a load rope of each load rope pair in a common first, essentially horizontally running, the double rope drums tangent load management level and is diverted to deflection into the vertical and the two other load ropes of each pair of load cables are guided vertically in a common second load management level tangent to the double-sided drums.
Die Führung der vier LastseHe in zwei im wesentlichen quer zueinander ausgerichteten Ebenen ist die Voraussetzung für die Erfassung der Last an einem Hubwerk mit vier Seilen, wie es insbesondere zum Containerumschlag verwendet wird. Während zwei Lastseile jedes Lastseilpaares direkt von der Seiltrommel senkrecht ab- und aufgewickelt werden, werden die verbleibenden beiden anderen Lastseile zunächst im wesentlichen horizontal geführt, um sie dann um Umlenkrollen in die Vertikale umzulenken. Die Doppelseiltrommeln sind so ausgebildet und bestückt, dass beim Antrieb der Seiltrommeln über das gemeinsame Getriebe jeweils alle vier Seile gleichzeitig und synchron auf- oder abgewickelt werden. Da das Gehäuse an einer seiner Seiten schwenkbar angelenkt und auf seiner anderen Seite auf einer Drehmomentstütze mit Messeinrichtung abgestützt ist, lassen sich an der Messeinrichtung leicht die die Seilkräfte repräsentierenden Kräfte erfassen.The guiding of the four load lines in two essentially transversely aligned levels is the prerequisite for the detection of the load on a hoist with four ropes, as is used in particular for container handling. While two load ropes of each load rope pair are directly unwound and wound up vertically from the rope drum, the remaining two other load ropes are initially guided essentially horizontally, in order then to deflect them vertically around deflection rollers. The Double rope drums are designed and equipped in such a way that when the rope drums are driven via the common gear, all four ropes are wound up or unwound simultaneously and synchronously. Since the housing is pivotally articulated on one side and supported on the other side on a torque arm with a measuring device, the forces representing the cable forces can be easily detected on the measuring device.
Um eine genaue Erfassung der Seilkräfte aller Seile und damit die Größe der an den Seilen hängenden Last feststellen zu können, wird nach einem weiteren Merkmal der Erfindung vorgeschlagen, dass sich die erste und die zweite Lastfuhrungsebene in einer dritten Ebene schneiden, die durch die Drehachse der Doppel-Seiltrommeln und die Schwenkachse des Hubwerksgetriebes verläuft, die auf der den Umlenkrollen und der Drehmomentenstütze abgewandten Seite des Getriebegehäuses vorgesehen ist und dass der Drehmomentstütze ein Kraftaufnehmer zur Erfassung der Gesamtsumme der wirksamen Seilkräfte zugeordnet ist.In order to be able to determine precisely the rope forces of all the ropes and thus the size of the load hanging on the ropes, it is proposed according to a further feature of the invention that the first and the second load management level intersect in a third plane, which through the axis of rotation of the Double cable drums and the swivel axis of the hoist gear run, which is provided on the side of the gear housing facing away from the deflection rollers and the torque support and that the torque support is assigned a force transducer for detecting the total sum of the effective cable forces.
Durch den Vorschlag der Erfindung wird eine geometrische Abhängigkeit zwischen den Lastführungsebenen und damit den Lastseilen sowie der Schwenkachse des Getriebegehäuses definiert, durch den die Abstände von Lastseilmitte bis zur Drehachse für beide in den Lastführungsebenen geführten Seile gleich groß sind. Unabhängig von den einzelnen Seilkräften in den Seilsträngen bewirkt diese Anordnung, dass ein in der Drehmomentstütze integrierter Kraftaufnehmer stets die gesamte Summe der angehängten Last erfasst.The proposal of the invention defines a geometric dependency between the load management levels and thus the load cables and the pivot axis of the transmission housing, by means of which the distances from the center of the load cable to the axis of rotation are the same for both cables guided in the load control levels. Regardless of the individual rope forces in the rope strands, this arrangement ensures that a force transducer integrated in the torque arm always captures the entire sum of the attached load.
Bei einer anderen Alternative der vorliegenden Erfindung ist vorgesehen, dass die Schwenkachse auf der den Umlenkrollen zugewandten und der Drehmomentstütze abgewandten Seite des Getriebegehäuses vorgesehen ist, dass in den Umlenkrollen Messachsen zum Erfassen der dort vertikal wirkenden Seiikräfte der angelenkten Lastseile angeordnet sind und dass die Seilkräfte der vertikal geführten anderen Lastseile in dem Kraftaufnehmer der den Lastseilen benachbarten Drehmomentstütze erfassbar sind.In another alternative of the present invention, it is provided that the pivot axis is provided on the side of the transmission housing facing the deflection rollers and away from the torque support, that measurement axes are arranged in the deflection rollers for detecting the vertical forces acting there of the articulated load cables and that the cable forces of the vertically guided other load ropes can be detected in the force transducer of the torque arm adjacent to the load ropes.
Bei dieser Lösung ist ein getrenntes Erfassen der Seilkräfte mindestens paarweise möglich. Während der Kraftaufnehmer in der Drehmomentstütze die aus den direkt vertikal geführten Seilen resultierenden wirksamen Kräfte erfasst, können die Seilkräfte der anderen, zunächst etwa horizontal geführten und dann umgelenkten Seile über Messaufnehmer erfasst werden, die sich in den Achsen der Umlenkrolle befinden. Auf diese Weise lässt sich eine genauere Aussage über die Lastverteilung in den Seilsträngen vornehmen, ohne dass die Messeinrichtungen, wie beim vorstehend beschriebenen Stand der Technik, in der Nähe des Lastaufnahmemittels angeordnet sein müssen.With this solution, the rope forces can be recorded separately at least in pairs. While the force transducer in the torque arm detects the effective forces resulting from the directly vertically guided ropes, the rope forces of the other ropes, initially guided approximately horizontally and then deflected, can be transferred via Sensors are detected that are located in the axes of the deflection roller. In this way, a more precise statement can be made about the load distribution in the rope strands without the measuring devices, as in the prior art described above, having to be arranged in the vicinity of the load suspension device.
In einer weiteren Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass die Seilkräfte der in der zweiten Lastfuhrungsebene vertikal geführten Lastseile in den Kraftaufnehmern von zwei den Lastseilen benachbarten voneinander beabstandeten Drehmomentstützen erfassbar sind, deren geometrische Anordnung in Bezug auf das Hubwerksgetriebegehäuse und die Abstände zu den Lastseilen eindeutig bestimmbar ist, wobei die Schwenkachse des Hubwerksgetriebegehäuses Kippbewegungen zulässt.In a further embodiment of the present invention it is provided that the rope forces of the load ropes vertically guided in the second load management plane can be detected in the force transducers by two torque supports spaced apart from one another and spaced apart geometrically in relation to the hoist gearbox housing and the distances to the load ropes is determinable, the pivot axis of the hoist gear housing allowing tilting movements.
Diese vorgeschlagene Lösung ermöglicht durch die exakte Erfassung der Seilkräfte auch eine exakte Aussage über den Schwerpunkt der Last. Die um die Umlenkrollen geführten Lastseile ermöglichen in den Messachsen der Umlenkrollen eine genaue Ermittlung der jeweils vertikal wirkenden Seilkraft in jedem einzelnen Seil. Für die Lastseile, die in der vertikalen Lastfuhrungsebene unmittelbar von der Doppelseiltrommel abgewickelt werden, ist eine eben solche getrennte Lasterfassung dadurch möglich, dass zwei voneinander beabstandete Drehmomentstützen mit zugeordneten Kraftaufπehmern Verwendung finden, die exakt geometrisch bestimmbar am Hubwerksgetriebegehäuse und am Hubwerksrahmen angelenkt sind. Vorzugsweise sind die Kraftaufnehmer beidseitig einer senkrechten Mittelebene durch das Getriebehäuse symmetrisch in einem definierten Abstand voneinander angeordnet, ihr Abstand zu dem jeweils zu messenden Lastseil ist bekannt. Aufgrund der geometrischen Verhältnisse lässt sich somit leicht die zu ermittelnde Seillast in den Kraftmesseinrichtungen erfassen, werden in den beiden Kraftmesseinrichtungen unterschiedlich große Lasten erfasst, so ist dies ein Indiz für eine außermittige Schwerpunktlage. Da auch an den Umlenkrollen die unterschiedlichen Seillasten erfasst werden können, kann rechnerisch über die geometrischen Verhältnisse exakt die Schwerpunktlage der Last bestimmt werden und entsprechend ausgewertet werden.This proposed solution enables exact information about the center of gravity of the load due to the exact detection of the rope forces. The load ropes guided around the deflection pulleys enable precise determination of the vertically acting rope force in each individual rope in the measuring axes of the deflection pulleys. For the load ropes that are unwound in the vertical load management plane directly from the double rope drum, such a separate load detection is possible in that two spaced-apart torque supports with associated force transducers are used, which are articulated precisely on the linkage housing and the linkage frame. The force transducers are preferably arranged symmetrically at a defined distance from one another on both sides of a vertical center plane through the transmission housing; their distance from the load rope to be measured in each case is known. Because of the geometrical relationships, the rope load to be determined can be easily detected in the force measuring devices, loads of different sizes are recorded in the two force measuring devices, this is an indication of an off-center center of gravity. Since the different rope loads can also be recorded on the deflection pulleys, the geometric center of gravity of the load can be determined mathematically and evaluated accordingly.
Weil sich der Abstand der Seile von den Kraftmesseinrichtungen bzw. den Drehmomentstützen beim Auf- und Abwickeln des Seiles ändert, ist nach einem weiteren Merkmal der Erfindung vorgesehen, dass die variablen Daten der Seilabstände innerhalb der zweiten Lastfuhrungsebene elektronisch ermittelt und überwacht werden. Diese Überwachung ist prinzipiell bekannt und wird hier verwendet, um eindeutige Messsignale bei jeder Hubhöhe zu erhalten. Mit der Erfindung wird eine Lasterfassung an einem Hubwerk vorgeschlagen, die unmittelbar an der Seilwinde durchgeführt wird. Die Meßeinrichtung ist dadurch von äußeren Meßeinflüssen weitgehend geschützt, aufgeprägte Beschleunigungen, die sich bei relativen Messungen mit auf dem Lastaufnahmemittel mitgeführten Kraftaufnehmern einstellen, entstehen nicht. Bei der Erfindung wird immer absolut gemessen.Because the distance of the cables from the force measuring devices or the torque supports changes when winding and unwinding the cable, it is provided according to a further feature of the invention that the variable data of the cable distances within the second load management level are determined and monitored electronically. This monitoring is known in principle and is used here to obtain clear measurement signals at every lifting height. The invention proposes a load detection on a hoist, which is carried out directly on the cable winch. The measuring device is thereby largely protected from external measuring influences, and there are no accelerations which occur during relative measurements with load cells carried on the load suspension device. The invention always measures absolutely.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is shown in the drawing and is described below.
Es zeigtIt shows
Fig. 1 die Ansicht einer Krananlage der Erfindung,1 is a view of a crane system of the invention,
Fig. 2 eine Ausführung der erfindungsgemäßen Einrichtung zur Lasterfassung,2 shows an embodiment of the device for load detection according to the invention,
Fig. 3 eine vereinfachte schematische 3D-Darstellung des Hubwerkes nach Fig.3 shows a simplified schematic 3D representation of the lifting mechanism according to FIG.
2,2,
Fig. 4 eine schematische 3D-Darstellung einer ersten Ausführungsvariante undFig. 4 is a schematic 3D representation of a first embodiment and
Fig. 5 eine schematische 3D-Darstellung einer zweiten Ausführungsvariante derFig. 5 is a schematic 3D representation of a second embodiment of the
Erfindung.Invention.
In Figur 1 ist in einer vereinfachten Darstellung die Gesamtansicht einer Krananlage dargestellt, in der die vorliegende Erfindung einsetzbar ist. Der aufgeständerte Brückenkran 1 besteht aus der Brücke 2 und der Katze 3. Von dem Hubwerk 4 und den beiden Doppel-Seiltrommeln 4.1 und 4.2 führen jeweils zwei, also insgesamt vier Seile 5.1 bis 5.4 zum Lastaufnahmemittel 6, welches die Last 7 trägt. Die Last ist in dem dargestellten Ausführungsbeispiel ein ISO-Container.In Figure 1, the overall view of a crane system is shown in a simplified representation, in which the present invention can be used. The elevated bridge crane 1 consists of the bridge 2 and the trolley 3. From the hoist 4 and the two double cable drums 4.1 and 4.2, two, that is a total of four cables 5.1 to 5.4 lead to the load-carrying device 6, which carries the load 7. In the exemplary embodiment shown, the load is an ISO container.
In Fig. 2 ist in einer Detailansicht das Hubwerk 4 auf der Katze 3 vergrößert dargestellt. Das Hubwerk 4 besteht aus dem Getriebe 8 mit dem Getriebegehäuse, den Antriebsmotoren 9, den beiden Doppel-Seiltrommeln 4.1 und 4.2 sowie den beiden Umlenkrollen 10.1 und 10.2. Das Getriebegehäuse 8 stützt sich innerhalb der Katze 3 auf den beiden Getriebelagern 11.1 und 11.2 und der Drehmomentstütze 12 ab. Erkennbar werden die Lastseile 5.3 und 5.4 in einer ersten horizontalen Lastfuhrungsebene zwischen der Doppel-Seiltrommel 4.1 bzw. 4.2 und den Umlenkrollen 10.1 bzw. 10.2 geführt, während die Lastseile 5.1 und 5.2 unmittelbar von den Lasttrommeln 4.1 und 4.2 vertikal in einer gemeinsamen vertikalen zweiten Lastfuhrungsebene geführt sind. Die Schwenkachse 13 des Getriebegehäuses 8 verläuft durch die beiden Getriebelager 11.1 und 11.2, sie liegt dabei in einer Ebene 14, die durch den Schnittpunkt der beiden Seilführungsebenen einerseits und die Drehachse der Seiltrommeln 4.1 und 4.2 verläuft. Bei dem dargestellten vertikalen und horizontalen Seilablauf bleiben bei diesen geometrischen Bedingungen die Maßabstände von Seilmitte bis zur Schwenkachse 13 gleich groß, d.h. y ist gleich z.2, the lifting mechanism 4 on the trolley 3 is shown enlarged in a detailed view. The hoist 4 consists of the transmission 8 with the transmission housing, the drive motors 9, the two double cable drums 4.1 and 4.2 and the two deflection rollers 10.1 and 10.2. The gear housing 8 is supported within the cat 3 on the two gear bearings 11.1 and 11.2 and the torque arm 12. The load ropes 5.3 and 5.4 can be seen in a first horizontal load management level between the double cable drum 4.1 or 4.2 and the deflecting pulleys 10.1 or 10.2, while the load ropes 5.1 and 5.2 directly from the load drums 4.1 and 4.2 vertically in a common vertical second load management level are led. The pivot axis 13 of the gear housing 8 runs through the two gear bearings 11.1 and 11.2, it lies in a plane 14 which passes through the intersection of the two cable guide levels on the one hand and the axis of rotation of the cable drums 4.1 and 4.2. In the vertical and horizontal cable run shown, the dimensional distances from the center of the cable to the pivot axis 13 remain the same size under these geometric conditions, ie y is equal to z.
Bei dieser dargestellten Anordnung des Hubwerkes wird sichergestellt, dass der in der Drehmomentstütze 12 integrierte Kraftaufnehmer 15 die gesamte Summe der Last erfasst, unabhängig von den einzelnen Seilkräften in den Seilsträngen 5.1 bis 5.4. Allerdings ist bei dieser Anordnung eine Aussage über den Schwerpunkt der Last 7 nicht möglich.In this arrangement of the lifting mechanism shown, it is ensured that the force transducer 15 integrated in the torque support 12 detects the entire sum of the load, regardless of the individual cable forces in the cable strands 5.1 to 5.4. However, a statement about the center of gravity of the load 7 is not possible with this arrangement.
Die vorstehend beschriebene Lösung ist in Fig. 3 in einer schematischen 3D-Darstellung nochmals geometrisch vereinfacht dargestellt. Erkennbar sind das Hubwerk 4, die beiden Doppel-Seiltrommeln 4.1 und 4.2 und die beiden Umlenkrollen 10.1 und 10.2. Das Getriebegehäuse 8 stützt sich innerhalb der Katze 3 auf der durch die Getriebelager 11.1 und 11.2 verlaufenden Schwenkachse 13 sowie der Drehmomentenstütze 12 ab. Die Schwenkachse 13 liegt dabei in der strichpunktiert angedeuteten dritten Ebene 14, die durch den Schnittpunkt der beiden Lastführungsebenen und die Drehachse der Seiltrommeln 4.1 und 4.2 verläuft. Wie beschrieben, bleiben die Maßabstände von Seilmitte bis zur Drehachse 13 gleich groß, d.h. y ist gleich z. Dabei beschreibt y den Abstand vom Lastseil 5.1 zur Schwenkachse 13 und z den Abstand vom Lastseil 5.3 zur Schwenkachse 13. Gleiches gilt für die Lastseile 5.2 und 5.4 der anderen Doppel- Seiltrommel. Der in der Drehmomentstütze 12 integrierte, nicht im Detail dargestellte Kraftaufnehmer 15 erfasst bei dieser Anordnung die gesamte Summe der Last, unabhängig von den einzelnen Seilkräften in den Seilsträngen 5.1 bis 5.4.The solution described above is shown in FIG. 3 in a schematic 3D representation, again in a geometrically simplified manner. The lifting mechanism 4, the two double cable drums 4.1 and 4.2 and the two deflection rollers 10.1 and 10.2 can be seen. The gear housing 8 is supported within the trolley 3 on the pivot axis 13 running through the gearbox bearings 11.1 and 11.2 and on the torque support 12. The pivot axis 13 lies in the dash-dotted third plane 14, which runs through the intersection of the two load-bearing planes and the axis of rotation of the cable drums 4.1 and 4.2. As described, the dimensional distances from the center of the rope to the axis of rotation 13 remain the same, i.e. y is equal to z. Here y describes the distance from the load cable 5.1 to the pivot axis 13 and z the distance from the load cable 5.3 to the pivot axis 13. The same applies to the load cables 5.2 and 5.4 of the other double cable drum. In this arrangement, the force transducer 15 integrated in the torque arm 12 and not shown in detail detects the total sum of the load, regardless of the individual rope forces in the rope strands 5.1 to 5.4.
Eine weitere Alternative der Erfindung ist in Fig.4 dargestellt. In einer schematischen SD- Darstellung ist das Hubwerk 4 erkennbar, von dem die beiden Doppel-Seiltrommeln 4.1 und 4.2 und die Umlenkrollen 10.1 und 10.2 dargestellt sind. Das Getriebegehäuse 8 stützt sich innerhalb der Katze 3 auf den beiden Getriebelagem 16.1 und 16.2 ab sowie auf der Drehmomentstütze 17. Die Seilkräfte in den Lastseilen 5.3 und 5.4 werden über die Messachsen 19.1 und 19.2 in den Umlenkrollen 10.1 und 10.2 ermittelt, der in der Drehmomentstütze 17 integrierte Kraftaufnehmer 18 erfasst die Summe der Last aus den einzelnen vertikal wirkenden Seilkräften in den Seilsträngen 5.1 und 5.2. Diese Lösung ermöglicht somit eine separate Erfassung der Seilkräfte auf beiden Getriebeseiten, eine Aussage über den Schwerpunkt der Last 7 kann mit dieser Anordnung nicht getroffen werden.Another alternative of the invention is shown in FIG. The lifting mechanism 4, of which the two double cable drums 4.1 and 4.2 and the deflection rollers 10.1 and 10.2 are shown, can be seen in a schematic SD representation. The gear case 8 is supported within the trolley 3 on the two gearbox bearings 16.1 and 16.2 and on the torque support 17. The cable forces in the load cables 5.3 and 5.4 are determined via the measuring axes 19.1 and 19.2 in the deflection pulleys 10.1 and 10.2, the force transducer integrated in the torque support 17 18 captures the sum of the load from the individual vertically acting rope forces in the rope strands 5.1 and 5.2. This solution thus enables the rope forces on both transmission sides to be recorded separately; a statement about the center of gravity of the load 7 cannot be made with this arrangement.
Die Darstellung in Fig. 5 zeigt eine weitere Alternative der Erfindung, auch hier ist das Hubwerk mit 4 bezeichnet. Die beiden Doppel-Seiltrommeln tragen die Positionsziffern 4.1 und 4.2. Die Lastseile 5.3 und 5.4 sind über die Umlenkrollen 10.1 und 10.2 geführt, die wie bei der Lösung nach Fig.4 mit Messachsen 19.1 und 19.2 versehen sind und ein separates Erfassen der Seilkräfte in den Seilsträngen 5.3 und 5.4 ermöglichen. Das Getriebegehäuse 8 stützt sich innerhalb der Katze 3 auf dem Getriebelager 20 und den beiden Drehmomentstützen 21.1 und 21.2 ab. In den Drehmomentstützen 21.1 und 21.2 sind integrierte Kraftaufnehmer 22.1 und 22.2 vorgesehen, die einzeln die vertikal wirkenden Seilkräfte in den Seilsträngen 5.1 und 5.2 erfassen. Dazu sind die folgenden Daten bekannt:The illustration in FIG. 5 shows a further alternative of the invention, here too the lifting mechanism is designated by 4. The two double rope drums have the item numbers 4.1 and 4.2. The load ropes 5.3 and 5.4 are guided over the deflection pulleys 10.1 and 10.2, which are provided with measuring axes 19.1 and 19.2 as in the solution according to FIG. 4 and enable the rope forces in the rope strands 5.3 and 5.4 to be recorded separately. The gear housing 8 is supported within the trolley 3 on the gear bearing 20 and the two torque supports 21.1 and 21.2. Integrated torque transducers 22.1 and 22.2 are provided in the torque supports 21.1 and 21.2, which individually detect the vertically acting rope forces in the rope strands 5.1 and 5.2. The following data is known:
Die konstanten Messwerte in den Kraftaufnehmern 22.1 und 22.2, der konstante Drehmomentstützenabstand a, die Geometrie des Rillenprofils der Seiltrommel, die von der jeweiligen Hubhöhe abhängigen Maßabstände x, die sich beim Auf- und Abwickeln der Seile verändern. Diese variablen Daten werden elektronisch übermittelt und überwacht, wie dies im Stand der Technik bekannt ist.The constant measured values in the force transducers 22.1 and 22.2, the constant torque arm spacing a, the geometry of the groove profile of the rope drum, the dimensional distances x which depend on the respective lifting height and which change during the winding and unwinding of the ropes. These variable data are transmitted and monitored electronically, as is known in the prior art.
Die Seilkräfte in den Seilsträngen 5.3 und 5.4 wurden separat ermittelt, so dass nunmehr alle Seilkräfte jedes einzelnen Seilstranges 5.1 bis 5.4 bekannt und auswertbar sind. Durch die exakte Erfassung dieser Seilkräfte ist bei dieser Anordnung der Hubwerkslagerung eine Aussage über die Lage des Schwerpunktes der Last 7 möglich. BezugszeichenlisteThe rope forces in the rope strands 5.3 and 5.4 were determined separately, so that all rope forces of each individual rope strand 5.1 to 5.4 are now known and can be evaluated. Due to the exact detection of these rope forces, a statement about the position of the center of gravity of the load 7 is possible in this arrangement of the hoist bearing. LIST OF REFERENCE NUMBERS
Brückenkran 1Overhead crane 1
Brücke 2Bridge 2
Katze 3Cat 3
Doppel-Seiltrom mel 4.1; 4.2Double rope drum mel 4.1; 4.2
Lastseile 5.1 bis 5.4Load ropes 5.1 to 5.4
Lastaufnahmemittel 6Load suspension device 6
Last 7Load 7
Getriebegehäuse 8Gear housing 8
Antriebsmotor 9Drive motor 9
Umlenkrollen 10.1; 10.2Pulleys 10.1; 10.2
Getriebelager 11.1 : 11.2Gearbox bearing 11.1: 11.2
Drehmomentstütze 12Torque arm 12
Schwenkachse 13Swivel axis 13
Ebene 14Level 14
Kraftaufnehmer 15Force transducer 15
Getriebelager 16.1; 16.2Gearbox bearing 16.1; 16.2
Drehmomentstütze 17Torque arm 17
Kraftaufnehmer 18Load cell 18
Messachsen 19.1 ; 19.2Measuring axes 19.1; 19.2
Getriebelager 20Gearbox bearing 20
Drehmomentstütze 21.1 ; 21.2Torque arm 21.1; 21.2
Kraftaufnehmer 22.1 ; 22.2 Force transducers 22.1; 22.2

Claims

Patentansprüche claims
1. Einrichtung zur Lasterfassung an einem Hubwerk, insbesondere am Hubwerk eines Kranes für den Containerumschlag, mit mindestens einer Seiltrommel, mindestens einem Antriebsmotor, sowie einem zwischen Antriebsmotor und Seiltrommel angeordnetem Hubwerksgetriebe, das in einem einseitig am Hubwerksrahmen abgestützten Hubwerksgetriebegehäuse angeordnet ist, wobei das Hubwerksgetriebegehäuse im Bereich eines stirnseitigen Endes um eine parallel zur Seiltrommelachse verlaufende Achse schwenkbar gelagert ist und im Bereich seines anderen stirnseitigen Endes auf mindestens einer Drehmomentstütze abstützbar ist, der eine Meßeinrichtung zur indirekten Erfassung der an den Seilen hängenden Last zugeordnet ist, dadurch gekennzeichnet, daß bei einem Hubwerk(4)mit zwei achsgleichen synchron antreibbaren Doppel- Seiltrommeln^.1 und 4.2)mit jeweils einem gleichsinnig auf und abwickelbaren Lastseilpaar(5.1 bis 5.4), jeweils ein Lastseil(5.3;5.4)jedes Lastseilpaares(5.1 ;5.3 und 5.2;5.4)in einer gemeinsamen ersten, im wesentlichen horizontal verlaufenden, die Doppel-Seiltrom meln(4.1 und 4.2)tangierenden Lastfuhrungsebene geführt und um Umlenkrollen(10.1;10.2)in die Vertikale umgeleitet ist, und die beiden anderen Lastseile(5.1;5.2)jedes Lastseilpaares(5.1;5.3 bzw. 5.2;5.4)in einer gemeinsamen zweiten, die Doppel- Seiltrom meln(4.1 und 4.2)tangierenden Lastfuhrungsebene vertikal geführt sind. 1.Device for load detection on a hoist, in particular on the hoist of a crane for container handling, with at least one cable drum, at least one drive motor, and a hoist gear arranged between the drive motor and the cable drum, which is arranged in a hoist gear housing supported on one side on the hoist frame, the hoist gear housing is pivotally mounted in the area of a front end about an axis running parallel to the rope drum axis and can be supported in the area of its other front end on at least one torque arm, which is assigned a measuring device for indirect detection of the load hanging on the ropes, characterized in that at one Hoist (4) with two axially synchronously drivable double rope drums ^ .1 and 4.2), each with a load rope pair (5.1 to 5.4) that can be wound up and unwound in the same direction, one load rope (5.3; 5.4) each for each load rope pair (5.1; 5.3 and 5.2; 5.4 ) in one he common first, essentially horizontal, the double cable drum (4.1 and 4.2) tangent load management level and is diverted by pulleys (10.1; 10.2) into the vertical, and the other two load cables (5.1; 5.2) of each load cable pair (5.1 ; 5.3 or 5.2; 5.4) are guided vertically in a common second load management level that affects the double rope drums (4.1 and 4.2).
2. Einrichtung zur Lasterfassuπg nach Anspruch 1 , dadurch gekennzeichnet, daß sich die erste und die zweite Lastfuhrungsebene in einer dritten Ebene(14)schneiden, die durch die Drehachse der Doppel-Seiltrommeln(4.1 und 4.2)und die Schwenkachse(13) des Hubwerksgetriebes(8)veriäuft, die auf der den Umlenkrollen(10.1 und 10.2)und der Drehmomentstütze(12)abgewandten Seite des Getriebegehäuses(8)vorgesehen ist und daß der Drehmomentstütze(12)ein Kraftaufnehmer(15)zur Erfassung der Gesamtsumme der wirkenden Seilkräfte zugeordnet ist.2. Device for Lasterfassuπg according to claim 1, characterized in that the first and the second load management plane intersect in a third plane (14) through the axis of rotation of the double cable drums (4.1 and 4.2) and the pivot axis (13) of the hoist gear (8) runs, which is provided on the side of the transmission housing (8) facing away from the deflection rollers (10.1 and 10.2) and the torque support (12) and that the torque support (12) is assigned a force transducer (15) for detecting the total amount of the acting cable forces is.
3. Einrichtung zur Lasterfassung nach Anspruch 1 , dadurch gekennzeichnet, daß die Schwenkachse(13)auf der den Umlenkrollen(10.1 und 10.2)zugewandten und der Drehmomentstütze(17)abgewandten Seite des Getriebegehäuses(8)vorgesehen ist, daß in den Umlenkrollen(10.1 und 10.2)Meßachsen(19.1;19.2)zum Erfassen der dort vertikal wirkenden Seilkräfte der umgelenkten Lastseile(5.3 und 5.4)angeordnet sind und daß die Setikräfte der vertikal geführten anderen Lastseile(5.1 und 5.2)in dem Kraftaufnehmer(18)der den Lastseilen(5.1 und 5.2)benachbarten Drehmomentstütze (17)erfaßbar sind. 3. Device for load detection according to claim 1, characterized in that the pivot axis (13) on the deflection rollers (10.1 and 10.2) facing and the torque arm (17) facing away from the gear housing (8) is provided that in the deflection rollers (10.1 and 10.2) measuring axes (19.1; 19.2) for detecting the vertically acting rope forces of the deflected load ropes (5.3 and 5.4) and that the set forces of the vertically guided other load ropes (5.1 and 5.2) in the force transducer (18) of the load ropes ( 5.1 and 5.2) adjacent torque arm (17) can be detected.
Einrichtung zur Lasterfassung nach Anspruch 1 , dadurch gekennzeichnet, daß die Seilkräfte der in der zweiten Lastfuhrungsebene vertikal geführten Lastseile(5.1 und 5.2)in den Kraftauf nehmern(22.1 und 22.2)von zwei den Lastseilen(5.1 und 5.2)benachbarten voneinander beabstandeten Drehmomentstützen(21.1 und 21.2)erfaßbar sind, deren geometrischen Anordnung in Bezug auf das Getriebegehäuse(8)und die Abstände(x)zu den Lastseilen(5.1 und 5.2)eindeutig bestimmbar ist, wobei die Schwenkachse des Getriebegehäuses(8)Kippbewegungen zuläßtDevice for load detection according to claim 1, characterized in that the cable forces of the load cables (5.1 and 5.2) guided vertically in the second load management plane in the load cells (22.1 and 22.2) of two torque supports (21.1 and 21.2) can be detected, the geometric arrangement of which can be clearly determined in relation to the gear housing (8) and the distances (x) to the load cables (5.1 and 5.2), the pivot axis of the gear housing (8) permitting tilting movements
Einrichtung zur Lasterfassung nach Anspruch 1 , dadurch gekennzeichnet, daß die variablen Daten der Seilabstände innerhalb der zweitenDevice for load detection according to claim 1, characterized in that the variable data of the cable distances within the second
Lastfuhrungsebene elektronisch ermittelt und überwacht werden. Load management level can be determined and monitored electronically.
EP03704562A 2002-02-07 2003-02-06 Hoisting gear with device for determining the load Expired - Lifetime EP1472175B1 (en)

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DE10205434 2002-02-07
DE10205434A DE10205434A1 (en) 2002-02-07 2002-02-07 Load sensing device on a hoist
PCT/EP2003/001191 WO2003066505A1 (en) 2002-02-07 2003-02-06 Device for detecting the load on a hoisting gear

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EP1472175B1 EP1472175B1 (en) 2006-10-04

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KR100600997B1 (en) 2004-09-14 2006-07-19 주식회사 고려호이스트 overload protecting device of double drum type
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WO2003066505A1 (en) 2003-08-14
EP1472175B1 (en) 2006-10-04
ATE341521T1 (en) 2006-10-15
US7267241B2 (en) 2007-09-11
DK1472175T3 (en) 2007-02-12
US20040104191A1 (en) 2004-06-03
ES2274206T3 (en) 2007-05-16
JP2005516875A (en) 2005-06-09
KR20040080925A (en) 2004-09-20
DE50305255D1 (en) 2006-11-16
DE10205434A1 (en) 2003-08-28
PT1472175E (en) 2007-01-31
KR100843757B1 (en) 2008-07-04
JP4260021B2 (en) 2009-04-30
AU2003206855A1 (en) 2003-09-02

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