WO2014060902A1 - Quick-change mechanism - Google Patents

Quick-change mechanism Download PDF

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Publication number
WO2014060902A1
WO2014060902A1 PCT/IB2013/059204 IB2013059204W WO2014060902A1 WO 2014060902 A1 WO2014060902 A1 WO 2014060902A1 IB 2013059204 W IB2013059204 W IB 2013059204W WO 2014060902 A1 WO2014060902 A1 WO 2014060902A1
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WO
WIPO (PCT)
Prior art keywords
coupling
linear drive
coupling device
pivotable
coupling element
Prior art date
Application number
PCT/IB2013/059204
Other languages
German (de)
French (fr)
Inventor
Thomas CASSAN
Original Assignee
Catoma Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH02008/12A external-priority patent/CH707081A2/en
Application filed by Catoma Kg filed Critical Catoma Kg
Publication of WO2014060902A1 publication Critical patent/WO2014060902A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3631—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a transversal locking element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3659—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat electrically-operated

Definitions

  • the invention relates to a coupling device for interchangeable attachment of a working device such as an excavator bucket on a boom or a vehicle, preferably a construction machine or a construction vehicle.
  • Such a coupling device is in all coupled to a boom or to a vehicle implements such.
  • excavator buckets digger signs, snow blades, various tools (spoons, drills, tilting paddles, chisel, milling cutter, support fork, ...), etc., useful.
  • the relatively high forces which are required to be stably taken over by this coupling device arise during the intended use.
  • the construction site operation with respect to moving parts is a very abrasive environment, which greatly increases the friction.
  • the invention relates in particular to coupling devices for implements with two mutually parallel and defined spaced cylindrical retaining bolts with exposed lateral surfaces, which are arranged on a mounting bar on the boom or on the vehicle, via a suitable acting linear actuator relative to each other adjustable coupling elements are locked behind engageable.
  • a coupling element as a solid gripping hook and the other coupling element as a movable closure hook, depending with matching recesses for engaging behind the retaining bolts, be formed.
  • Machine-actuated linear drives are also known.
  • hydraulic, pneumatic or electric linear drives are suitable as such. Since these are suitably remotely controllable from the cab from the rapid change of the implement is made possible.
  • EP1325196B1 discloses a related coupling device with hydraulic or pneumatic and electric linear drive, which acts on a displaceable in the plane of the retaining bolts, in guide rails locking slide, which extends and thereby locks one of the retaining bolts.
  • the disadvantage here is that the force that locks the retaining bolt, also jammed the locking slide in the guide rails so that it can be reliably solved in abrasive construction site operation only with a powerful linear drive, as he only hydraulically or pneumatically feasible in the available space , In particular, it can not be set in motion with a spatially fitting into the coupling device electric motor spindle drive.
  • a secure locking position is recognizable only by a non-unique visual inspection of the cab.
  • the object of the invention is to realize a robust and safe coupling device with integrated electric motor spindle drive, which overcomes the above disadvantages.
  • the object is achieved with the features of claim 1.
  • a coupling device for attachment of a working device at least two, by means of an electric linear drive relative to each other movable coupling elements and a locking means of the distance of the two coupling elements in the coupling position, wherein at least one coupling element is pivotally mounted and not rigidly connected to the linear drive
  • the linear drive is not rigidly connected to the pivotable coupling element, in particular via a knee joint connection, no harmful lateral forces and bending moments can be transferred from this to those.
  • a secure locking of the coupling position is ensured by means of the locking means on the electric linear drive.
  • this coupling element is free within the limits of its bearing clearance and its elasticity to snuggle the gripped retaining bolt, whereby a homogeneous power transmission takes place.
  • the pivotable coupling element has a stop surface which is perpendicular to the drive direction and against which the locking means in the form of a carriage displaceable via the linear drive strikes with suitable damping means in the coupling position.
  • the stop surface locks the distance between the two coupling elements located in the coupling position and thus secures them, but by the stop surface perpendicular to the drive direction and, avoided by the geometric definition of the pivotable coupling element, buckling force or other forces, in particular lateral forces and bending moments , which are transmitted from the pivotable coupling element on the carriage, the linear drive is subject to no buckling stress.
  • the carriage forms an at least partially concave driver, which engages with slight free play in an undercut of the pivotable coupling element, whereby it is pivotable by means of the linear drive in the open position. Since the force required for the opening / closing of the pivotable coupling element is directed perpendicular to the force transmitted from the retaining bolt, the tensile and compressive forces occurring on the linear drive are relatively low and thus also applied by an electric linear drive.
  • the axis of rotation of the pivotable coupling element is slightly offset in the opening direction, whereby jamming on the retaining bolt is additionally reduced.
  • the electric linear drive is a low-voltage (12V or 24V) operated spindle shaft motor, preferably with a corresponding reduction and in the execution of a rotating spindle on which the mother, which moves in a protected from external influences space, the necessary movement for fixing performs, which is realized in the abrasive construction site operation reliable operation of the coupling elements via a spatially integrated into the coupling device electric linear drive.
  • the carriage is assigned a suitable for detecting the coupling position electrical position sensor, whereby a corresponding coupling signal can be signaled in the cab.
  • Fig. 3 is a longitudinal section
  • Fig. 6 is a longitudinal section
  • a coupling device 1 for attachment of a working device 2 shown only partially in the form of an excavator bucket with two in A standardized spaced, parallel retaining bolts 3a, 3b on a (not shown) excavator boom two, by means of an electric linear drive 4 relative to each other movable, coupling elements 5a, 5b, formed as edge-side fixed gripping hooks and as a central movable locking hook and in each case with matching recesses 6 for engaging behind the retaining bolts 3, and a locking means of the distance of the two coupling elements 5a, 5b in the coupling position (Fig. 6), wherein a coupling element 5b mounted pivotably and is not rigidly connected to the linear drive 4.
  • the carriage 9 forms an at least partially concave driver 10, which engages with little free play in an undercut 11 of the pivotable coupling element 5b and thus forms a knee joint, whereby the pivotable coupling element 5b by means of a prestressed spring 13 in the form of a torsion spring and the Linear drive 4 in the coupling position (Fig. 5, 6) and by means of the linear drive 4 in the open position (Fig. 1, 3) is pivotable.
  • the carriage 9 is associated with an electrical position sensor 12 for detecting the coupling position (FIG. 5) in the form of a magnet and HALL sensor.
  • the electrical linear drive 4 which is completely spatially integrated into the coupling device 1, is realized as a 12-24 V self-locking spindle shaft motor 4 a with a sealed housing 4 b for the rotating spindle on which the running nut 4 c is mounted.
  • the control of the electric linear drive 4 and the signaling of the clutch signal takes place directly in the (not shown) cab of an excavator.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Abstract

A coupling device (1) for fastening a working implement (2) has at least two coupling elements (5a, 5b) which are movable relative to one another by means of an electric linear drive (4), and a means for fixing the spacing of the two coupling elements (5a, 5b) in the coupling position, wherein at least one coupling element (5b) is pivotably mounted and not rigidly connected to the linear drive (4).

Description

Schnellwechsler  Quick coupler
Die Erfindung betrifft eine Kupplungsvorrichtung zum auswechselbaren Befestigen eines Arbeitsgerätes wie einer Baggerschaufel an einem Ausleger oder einem Fahrzeug, vorzugsweise einer Baumaschine oder einem Baufahrzeug. The invention relates to a coupling device for interchangeable attachment of a working device such as an excavator bucket on a boom or a vehicle, preferably a construction machine or a construction vehicle.
Eine solche Kupplungsvorrichtung ist bei allen an einen Ausleger oder an ein Fahrzeug ankuppelbaren Arbeitsgeräten, wie z. B. Baggerschaufeln, Baggerschildern, Schneeräumschildern, diversen Werkzeugen (Löffel, Bohrer, Kippschaufeln, Stemmmeißel, Fräser, Traggabel, ...) usw. sinnvoll einsetzbar. Im Bereich der Kupplungsvorrichtung zum auswechselbaren Befestigen des Arbeitsgerätes entstehen beim zweckbestimmten Gebrauch dessen relativ hohe Kräfte, die von dieser Kupplungsvorrichtung robust übernommen werden müssen. Zudem ist der Baustellenbetrieb bezüglich beweglicher Teile eine sehr abrasive Umgebung, welche die Reibung stark erhöht. Such a coupling device is in all coupled to a boom or to a vehicle implements such. As excavator buckets, digger signs, snow blades, various tools (spoons, drills, tilting paddles, chisel, milling cutter, support fork, ...), etc., useful. In the area of the coupling device for interchangeable attachment of the working device, the relatively high forces which are required to be stably taken over by this coupling device arise during the intended use. In addition, the construction site operation with respect to moving parts is a very abrasive environment, which greatly increases the friction.
Dabei bezieht sich die Erfindung insbesondere auf Kupplungsvorrichtungen für Arbeitsgeräte mit zwei parallel zueinander ausgerichteten sowie definiert beabstandeten zylindrischen Haltebolzen mit freiliegenden Mantelflächen, welche von an einem Montagesteg am Ausleger oder am Fahrzeug angeordneten, über einen geeignet wirkenden Linearantrieb relativ zueinander verstellbaren Kupplungselementen arretierbar hintergreifbar sind. Dazu kann bspw. ein Kupplungselement als fester Greifhaken und das andere Kupplungselement als beweglicher Verschlusshaken, je mit passenden Ausnehmungen zum Hintergreifen der Haltebolzen, ausgebildet sein. In this case, the invention relates in particular to coupling devices for implements with two mutually parallel and defined spaced cylindrical retaining bolts with exposed lateral surfaces, which are arranged on a mounting bar on the boom or on the vehicle, via a suitable acting linear actuator relative to each other adjustable coupling elements are locked behind engageable. For this purpose, for example, a coupling element as a solid gripping hook and the other coupling element as a movable closure hook, depending with matching recesses for engaging behind the retaining bolts, be formed.
Bei den vorbekannten WO2011/051923, WO2011/035883, WO95/00714 und WO2008/013590 wird die hochdynamische Kraft am Arbeitsgerät, welche über die Haltebolzen als Presskontaktbeanspruchung auch auf den verschwenkbaren Verschlusshaken einwirkt, direkt über, eine Knickbeanspruchung erzeugende, Querkräfte und Biegemomente des Linearantriebs aufgefangen. Diese mehrachsige, dynamische Wechsellast ist bezüglich dessen Standzeit denkbar ungünstig und kann zu einer raschen Zerstörung des als Arretierungsmittels wirkenden Linearantriebs und somit zu Sicherheitsrisiken führen. In the previously known WO2011 / 051923, WO2011 / 035883, WO95 / 00714 and WO2008 / 013590, the highly dynamic force on the working device, which also acts on the pivotable locking hooks via the retaining bolts as press contact stress, directly on, a buckling stress generating, transverse forces and bending moments of the linear drive collected. This multiaxial, dynamic alternating load is conceivably unfavorable with regard to its service life and can lead to a rapid destruction of the linear drive acting as a locking means and thus to safety risks.
Gegenüber den ursprünglich verwendeten rein mechanischen Linearantrieben wie selbsthemmende Schraubspindeln, welche vor Ort von Hand betätigt werden müssen, sind auch maschinell betätigte Linearantriebe bekannt. Insbesondere sind hydraulische, pneumatische oder elektrische Linearantriebe als solche geeignet. Da diese von dem Führerhaus aus geeignet fernsteuerbar sind wird dadurch der schnelle Wechsel des Arbeitsgerätes ermöglicht. Compared to the originally used purely mechanical linear drives such as self-locking screw spindles, which must be operated manually on site, Machine-actuated linear drives are also known. In particular, hydraulic, pneumatic or electric linear drives are suitable as such. Since these are suitably remotely controllable from the cab from the rapid change of the implement is made possible.
Die EP1325196B1 offenbart eine diesbezügliche Kupplungsvorrichtung mit hydraulischem oder pneumatischem sowie elektrischen Linearantrieb, der auf einen in der Ebene der Haltebolzen, in Führungsschienen versetzbaren Verriegelungsschlitten wirkt, welcher ausfährt und dadurch einen der Haltebolzen verriegelt. Nachteilig hier ist, dass die Kraft, welche den Haltebolzen verriegelt, auch den Verriegelungsschlitten in den Führungsschienen verklemmt, so dass dieser im abrasiven Baustellenbetrieb nur mit einem kräftigen Linearantrieb, wie er im verfügbaren Bauraum nur hydraulisch oder pneumatisch realisierbar ist, zuverlässig wieder gelöst werden kann. Insbesondere kann er mit einem räumlich in die Kupplungsvorrichtung passenden Elektromotor- Spindelantrieb nicht in Bewegung gesetzt werden. Zudem ist eine sichere Verriegelungsposition nur über eine nichteindeutige Sichtkontrolle vom Führerhaus aus erkennbar. EP1325196B1 discloses a related coupling device with hydraulic or pneumatic and electric linear drive, which acts on a displaceable in the plane of the retaining bolts, in guide rails locking slide, which extends and thereby locks one of the retaining bolts. The disadvantage here is that the force that locks the retaining bolt, also jammed the locking slide in the guide rails so that it can be reliably solved in abrasive construction site operation only with a powerful linear drive, as he only hydraulically or pneumatically feasible in the available space , In particular, it can not be set in motion with a spatially fitting into the coupling device electric motor spindle drive. In addition, a secure locking position is recognizable only by a non-unique visual inspection of the cab.
Die Aufgabe der Erfindung besteht in der Realisierung einer robusten und sicheren Kupplungsvorrichtung mit integriertem Elektromotor-Spindelantrieb, welche obige Nachteile überwindet. Die Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen. The object of the invention is to realize a robust and safe coupling device with integrated electric motor spindle drive, which overcomes the above disadvantages. The object is achieved with the features of claim 1. Advantageous developments emerge from the subclaims.
Die eigene CH-Patentanmeldung Nr. 02008/12, deren gesamter Offenbarungsgehalt hiermit in diese Anmeldung einbezogen wird, offenbart eine derartige Kupplungsvorrichtung mit einem integrierten Elektromotor-Spindelantrieb. Our own Swiss patent application no. 02008/12, the entire disclosure of which is hereby incorporated by reference into this application, discloses such a coupling device with an integrated electric motor spindle drive.
Im Wesentlichen weist eine Kupplungsvorrichtung zur Befestigung eines Arbeitsgeräts zumindest zwei, mittels eines elektrischen Linearantriebs relativ zueinander bewegliche, Kupplungselemente und ein Arretierungsmittel des Abstands der beiden Kupplungselemente in Kupplungsposition auf, wobei zumindest ein Kupplungselement verschwenkbar gelagert sowie nicht starr mit dem Linearantrieb verbunden ist In essence, a coupling device for attachment of a working device at least two, by means of an electric linear drive relative to each other movable coupling elements and a locking means of the distance of the two coupling elements in the coupling position, wherein at least one coupling element is pivotally mounted and not rigidly connected to the linear drive
Indem der Linearantrieb nicht starr mit dem verschwenkbaren Kupplungselement verbunden ist, insbesondere über eine Kniegelenkverbindung, können von diesem keine schädlichen Querkräfte und Biegemomente auf jenen übertragen werden. Dadurch ist eine sichere Arretierung der Kupplungsposition mittels des Arretierungsmittels über den elektrischen Linearantrieb gewährleistet. Zudem ist dieses Kupplungselement in den Grenzen seines Lagerspiels und seiner Elastizität frei, sich dem ergriffenen Haltebolzen anzuschmiegen, wodurch eine homogene Kraftübertragung erfolgt. By the linear drive is not rigidly connected to the pivotable coupling element, in particular via a knee joint connection, no harmful lateral forces and bending moments can be transferred from this to those. As a result, a secure locking of the coupling position is ensured by means of the locking means on the electric linear drive. In addition, this coupling element is free within the limits of its bearing clearance and its elasticity to snuggle the gripped retaining bolt, whereby a homogeneous power transmission takes place.
Vorteilhaft weist das verschwenkbare Kupplungselement eine zur Antriebsrichtung senkrechte Anschlagfläche auf, an welcher in Kupplungsposition das Arretierungsmittel in Form eines über den Linearantrieb versetzbaren Schlittens mit geeigneten Dämpfungsmitteln anschlägt. Indem der Schlitten zwar mittels der Anschlagfläche den Abstand der beiden in Kupplungsposition befindlichen Kupplungselemente arretiert und diese somit sichert, aber durch die zur Antriebsrichtung senkrecht liegende Anschlagfläche sowie die, durch die geometrische Definition des verschwenkbaren Kupplungselements, vermiedene Knickkraft oder sonstigen Kräfte, insbesondere Querkräfte und Biegemomente, die von dem verschwenkbaren Kupplungselement auf den Schlitten übertragen werden, unterliegt der Linearantrieb keiner Knickbeanspruchung. Advantageously, the pivotable coupling element has a stop surface which is perpendicular to the drive direction and against which the locking means in the form of a carriage displaceable via the linear drive strikes with suitable damping means in the coupling position. By the carriage by means of the stop surface locks the distance between the two coupling elements located in the coupling position and thus secures them, but by the stop surface perpendicular to the drive direction and, avoided by the geometric definition of the pivotable coupling element, buckling force or other forces, in particular lateral forces and bending moments , Which are transmitted from the pivotable coupling element on the carriage, the linear drive is subject to no buckling stress.
Vorteilhaft bildet der Schlitten einen zumindest teilweise konkav geformten Mitnehmer aus, welcher mit geringem freiem Spiel in einen Hinterschnitt des verschwenkbaren Kupplungselements eingreift, wodurch dieser mittels des Linearantriebs in die Öffnungsposition verschwenkbar ist. Da die zur Öffnung / Schließung des verschwenkbaren Kupplungselements benötigte Kraft senkrecht zur von dem Haltebolzen auf jenes übertragene Kraft gerichtet ist, sind die auftretenden Zug- und Druckkräfte am Linearantrieb relativ gering und somit auch von einem elektrischen Linearantrieb aufzubringen. Advantageously, the carriage forms an at least partially concave driver, which engages with slight free play in an undercut of the pivotable coupling element, whereby it is pivotable by means of the linear drive in the open position. Since the force required for the opening / closing of the pivotable coupling element is directed perpendicular to the force transmitted from the retaining bolt, the tensile and compressive forces occurring on the linear drive are relatively low and thus also applied by an electric linear drive.
Vorteilhaft ist die Drehachse des verschwenkbaren Kupplungselements leicht in Öffnungsrichtung versetzt, wodurch ein Verklemmen am Haltebolzen zusätzlich gemindert wird. Advantageously, the axis of rotation of the pivotable coupling element is slightly offset in the opening direction, whereby jamming on the retaining bolt is additionally reduced.
Vorteilhaft greift eine im verschwenkbaren Kupplungselement angebrachte vorgespannte Feder beim Aufnehmen des Haltebolzens derart unterstützend ein, dass nach der Aufnahme des Haltebolzens das verschwenkbare Kupplungselement schon in seiner endgültigen Position ist und durch das Arretierungsmittel, welches über den Linearantrieb bewegt wird, nur noch in seiner Position arretiert werden muss, wodurch der Kupplungsvorgang beschleunigt wird. Advantageously engages a biased spring mounted in the pivotable coupling element when receiving the retaining bolt so that after receiving the retaining bolt, the pivotable coupling element is already in its final position and locked by the locking means which is moved over the linear drive, only in its position must be, by the coupling process is accelerated.
Vorteilhaft ist der elektrische Linearantrieb ein mit Niederspannung (12V oder 24V) betriebener Spindelwellenmotor, vorzugsweise mit einer entsprechenden Untersetzung und in der Ausführung einer rotierenden Spindel, auf der die Mutter, welche sich in einem vor äußeren Einflüssen geschützten Bauraum bewegt, die zur Fixierung nötigen Bewegung ausführt, wodurch auch im abrasive Baustellenbetrieb eine zuverlässige Betätigung der Kupplungselemente über einen räumlich in die Kupplungsvorrichtung integrierten elektrischen Linearantrieb realisiert ist. Advantageously, the electric linear drive is a low-voltage (12V or 24V) operated spindle shaft motor, preferably with a corresponding reduction and in the execution of a rotating spindle on which the mother, which moves in a protected from external influences space, the necessary movement for fixing performs, which is realized in the abrasive construction site operation reliable operation of the coupling elements via a spatially integrated into the coupling device electric linear drive.
Vorteilhaft ist dem Schlitten ein zur Detektion der Kupplungsposition geeigneter elektrischer Positionssensor zugeordnet, wodurch ein entsprechendes Kupplungssignal in das Führerhaus signalisiert werden kann. Advantageously, the carriage is assigned a suitable for detecting the coupling position electrical position sensor, whereby a corresponding coupling signal can be signaled in the cab.
Anhand eines vorteilhaften Ausführungsbeispiels ist die Erfindung nachfolgend dargestellt. Dabei zeigen With reference to an advantageous embodiment of the invention is shown below. Show
Fig. 1 eine Aufsicht,  1 is a plan view,
Fig. 2 eine Untersicht,  2 is a bottom view,
Fig. 3 einen Längsschnitt  Fig. 3 is a longitudinal section
in Öffnungsposition sowie in opening position as well
Fig. 4 eine Aufsicht,  4 is a plan view,
Fig. 5 eine Untersicht,  5 is a bottom view,
Fig. 6 einen Längsschnitt  Fig. 6 is a longitudinal section
in Kupplungsposition. in coupling position.
So weist eine Kupplungsvorrichtung 1 zur Befestigung eines nur teilweise dargestellten Arbeitsgeräts 2 in Form einer Baggerschaufel mit zwei in A standardisiert beabstandeten, parallelen Haltebolzen 3a, 3b an einem (nicht dargestellten) Baggerausleger zwei, mittels eines elektrischen Linearantriebs 4 relativ zueinander bewegliche, Kupplungselemente 5a, 5b, ausgebildet als randseitige feste Greifhaken und als mittiger beweglicher Verschlusshaken sowie jeweils mit passenden Ausnehmungen 6 zum Hintergreifen der Haltebolzen 3, und ein Arretierungsmittel des Abstands der beiden Kupplungselemente 5a, 5b in Kupplungsposition (Fig. 6) auf, wobei ein Kupplungselement 5b verschwenkbar gelagert sowie nicht starr mit dem Linearantrieb 4 verbunden ist. Dabei weist das um eine bezüglich der Position des zugeordneten Haltebolzens 3b leicht in Öffnungsrichtung versetzte Drehachse B (Fig. 3) verschwenkbare Kupplungselement 5b eine zur Antriebsrichtung C des Linearantriebs 4 senkrechte Anschlagfläche 7 auf, an welcher in Kupplungsposition (Fig. 5, 6) das Arretierungsmittel in Form eines über den Linearantrieb 4 versetzbaren, in einer Führungsschiene 8 geführten Schlittens 9 mit freiem Spiel anschlägt. Dabei bildet der Schlitten 9 einen zumindest teilweise konkav geformten Mitnehmer 10 aus, welcher mit geringem freiem Spiel in einen Hinterschnitt 11 des verschwenkbaren Kupplungselements 5b eingreift und so eine Kniegelenkverbindung ausbildet, wodurch das verschwenkbare Kupplungselement 5b mittels einer vorgespannten Feder 13 in Form einer Torsionsfeder und des Linearantriebs 4 in die Kupplungsposition (Fig. 5, 6) sowie mittels des Linearantriebs 4 in die Öffnungsposition (Fig. 1 , 3) verschwenkbar ist. Dem Schlitten 9 ist zur Detektion der Kupplungsposition (Fig. 5) in Form eines Magneten und HALL-Sensors ein elektrischer Positionssensor 12 zugeordnet. Der räumlich vollständig in die Kupplungsvorrichtung 1 integrierte elektrische Linearantrieb 4 ist als ein mit 12 - 24V betriebener, selbsthemmender Spindelwellenmotor 4a mit einer in einem abgedichteten Gehäuse 4b für die sich drehende Spindel, auf der die Laufmutter 4c angebracht ist, realisiert. Die Steuerung des elektrischen Linearantriebs 4 sowie die Signalisierung des Kupplungssignals erfolgt direkt im (nicht dargestellten) Führerhaus eines Baggers. Thus, a coupling device 1 for attachment of a working device 2 shown only partially in the form of an excavator bucket with two in A standardized spaced, parallel retaining bolts 3a, 3b on a (not shown) excavator boom two, by means of an electric linear drive 4 relative to each other movable, coupling elements 5a, 5b, formed as edge-side fixed gripping hooks and as a central movable locking hook and in each case with matching recesses 6 for engaging behind the retaining bolts 3, and a locking means of the distance of the two coupling elements 5a, 5b in the coupling position (Fig. 6), wherein a coupling element 5b mounted pivotably and is not rigidly connected to the linear drive 4. In this case, the axis of rotation B which is slightly offset in the opening direction relative to the position of the associated holding bolt 3b (FIG. 3) pivotable coupling element 5b a perpendicular to the drive direction C of the linear drive 4 stop surface 7, on which in the coupling position (Fig. 5, 6) the locking means in the form of a displaceable on the linear drive 4, guided in a guide rail 8 slide 9 strikes with free play. In this case, the carriage 9 forms an at least partially concave driver 10, which engages with little free play in an undercut 11 of the pivotable coupling element 5b and thus forms a knee joint, whereby the pivotable coupling element 5b by means of a prestressed spring 13 in the form of a torsion spring and the Linear drive 4 in the coupling position (Fig. 5, 6) and by means of the linear drive 4 in the open position (Fig. 1, 3) is pivotable. The carriage 9 is associated with an electrical position sensor 12 for detecting the coupling position (FIG. 5) in the form of a magnet and HALL sensor. The electrical linear drive 4, which is completely spatially integrated into the coupling device 1, is realized as a 12-24 V self-locking spindle shaft motor 4 a with a sealed housing 4 b for the rotating spindle on which the running nut 4 c is mounted. The control of the electric linear drive 4 and the signaling of the clutch signal takes place directly in the (not shown) cab of an excavator.

Claims

PATENTANSPRÜCHE
1 . Kupplungsvorrichtung zur Befestigung eines Arbeitsgeräts (2) mit zumindest zwei, mittels eines elektrischen Linearantriebs (4) relativ zueinander beweglichen Kupplungselementen (5a, 5b) und einem Arretierungsmittel des Abstands der beiden Kupplungselemente (5a, 5b) in Kupplungsposition, dadurch gekennzeichnet, dass zumindest ein Kupplungselement (5b) verschwenkbar gelagert sowie nicht starr mit dem Linearantrieb (4) verbunden ist. 1 . Coupling device for fastening a working device (2) with at least two, by means of an electric linear drive (4) relatively movable coupling elements (5a, 5b) and a locking means of the distance of the two coupling elements (5a, 5b) in the coupling position, characterized in that at least one Coupling element (5b) mounted pivotably and not rigidly connected to the linear drive (4).
2. Kupplungsvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das verschwenkbare Kupplungselement (5b) eine zur Antriebsrichtung (C) senkrechte Anschlagfläche (7) aufweist, an welcher in Kupplungsposition das Arretierungsmittel in Form eines über den Linearantrieb (4) versetzbaren Schlittens (9) anschlägt. 2. Coupling device according to claim 1, characterized in that the pivotable coupling element (5b) has a drive direction (C) perpendicular stop surface (7) on which in the coupling position, the locking means in the form of a via the linear drive (4) displaceable carriage (9) strikes.
3. Kupplungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schlitten (9) einen zumindest teilweise konkav geformten Mitnehmer (10) ausbildet, welcher in einen Hinterschnitt (11 ) des verschwenkbaren Kupplungselements (5b) eingreift. 3. Coupling device according to claim 1 or 2, characterized in that the carriage (9) forms an at least partially concave driver (10) which engages in an undercut (11) of the pivotable coupling element (5b).
4. Kupplungsvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Drehachse (B) des verschwenkbaren Kupplungselements (5b) leicht in Öffnungsrichtung versetzt ist. 4. Coupling device according to one of claims 1 to 3, characterized in that the axis of rotation (B) of the pivotable coupling element (5 b) is slightly offset in the opening direction.
5. Kupplungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass im verschwenkbaren Kupplungselement (5b) eine vorgespannte Feder (13) angebracht ist, die beim Aufnehmen eines Haltebolzens (3b) unterstützend eingreift. 5. Coupling device according to one of claims 1 to 4, characterized in that in the pivotable coupling element (5 b) a prestressed spring (13) is mounted, which engages supportive when receiving a retaining bolt (3 b).
6. Kupplungsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der elektrische Linearantrieb (4) ein mit Niederspannung (12V oder 24V) betriebener Spindelwellenmotor (4a) ist, optional mit einer in einem abgedichteten Gehäuse (4b) für die sich drehende Spindel, auf der die Laufmutter (4c) angebracht ist . 6. Coupling device according to one of claims 1 to 5, characterized in that the electric linear drive (4) is a low-voltage (12V or 24V) driven spindle shaft motor (4a), optionally with a sealed housing (4b) for the rotating Spindle on which the nut (4c) is mounted.
7. Kupplungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass dem Arretierungsmittel ein zur Detektion der Kupplungsposition geeigneter elektronischer Positionssensor (12) zugeordnet ist. 7. Coupling device according to one of claims 1 to 6, characterized in that the detent is associated with a suitable for the detection of the clutch position electronic position sensor (12).
PCT/IB2013/059204 2012-10-15 2013-10-08 Quick-change mechanism WO2014060902A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH02008/12A CH707081A2 (en) 2012-10-15 2012-10-15 Coupling device for fastening e.g. closure hook at live boom of dredging shovel, has mounting element that is pivoted by liner drive force at slope portion on support surface of coupling element, to enable fixation of coupling elements
CH02008/12 2012-10-15
ATA544-2013 2013-07-01
AT5442013A AT513586A2 (en) 2012-10-15 2013-07-01 Quick coupler

Publications (1)

Publication Number Publication Date
WO2014060902A1 true WO2014060902A1 (en) 2014-04-24

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Application Number Title Priority Date Filing Date
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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH200812A (en) 1937-01-29 1938-10-31 Licentia Gmbh Delayed overcurrent release.
JPH0242957U (en) * 1988-09-13 1990-03-26
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
WO1995000714A1 (en) 1993-06-21 1995-01-05 Barone, Inc. Quick coupler for heavy equipment implements
DE29810750U1 (en) * 1998-06-16 1998-10-01 Atlas Weyhausen GmbH, 27751 Delmenhorst Quick change device
WO2000070155A1 (en) * 1999-05-15 2000-11-23 Bruce Archibald Short Connection apparatus
US20020071754A1 (en) * 2000-12-11 2002-06-13 Jrb Company, Inc. Coupler with improved pin lock
EP1325196B1 (en) 2000-10-10 2004-07-07 Josef Martin GmbH & Co. KG Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle
US20060210384A1 (en) * 2004-09-21 2006-09-21 Ultra-Tach, Llc Electrically actuated attachment system for tractor front end loaders
WO2008013590A2 (en) 2006-04-24 2008-01-31 The Board Of Regents Of The University Of Nebraska Implementation of a mitochondrial mutator
US20110033273A1 (en) * 2009-04-13 2011-02-10 Rockland, Inc. Dipper Stick with Implement Coupling Means
WO2011035883A1 (en) 2009-09-22 2011-03-31 Ian Hill Hydraulic coupler with pin retention system for coupling an attachment to a work machine
WO2011048413A1 (en) * 2009-10-21 2011-04-28 Whites Material Handling Ltd A coupler for coupling an attachment to a machine
WO2011051923A1 (en) 2009-11-02 2011-05-05 Patrick Mccormick A quick hitch coupler

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH200812A (en) 1937-01-29 1938-10-31 Licentia Gmbh Delayed overcurrent release.
JPH0242957U (en) * 1988-09-13 1990-03-26
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
WO1995000714A1 (en) 1993-06-21 1995-01-05 Barone, Inc. Quick coupler for heavy equipment implements
DE29810750U1 (en) * 1998-06-16 1998-10-01 Atlas Weyhausen GmbH, 27751 Delmenhorst Quick change device
WO2000070155A1 (en) * 1999-05-15 2000-11-23 Bruce Archibald Short Connection apparatus
EP1325196B1 (en) 2000-10-10 2004-07-07 Josef Martin GmbH & Co. KG Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle
US20020071754A1 (en) * 2000-12-11 2002-06-13 Jrb Company, Inc. Coupler with improved pin lock
US20060210384A1 (en) * 2004-09-21 2006-09-21 Ultra-Tach, Llc Electrically actuated attachment system for tractor front end loaders
WO2008013590A2 (en) 2006-04-24 2008-01-31 The Board Of Regents Of The University Of Nebraska Implementation of a mitochondrial mutator
US20110033273A1 (en) * 2009-04-13 2011-02-10 Rockland, Inc. Dipper Stick with Implement Coupling Means
WO2011035883A1 (en) 2009-09-22 2011-03-31 Ian Hill Hydraulic coupler with pin retention system for coupling an attachment to a work machine
WO2011048413A1 (en) * 2009-10-21 2011-04-28 Whites Material Handling Ltd A coupler for coupling an attachment to a machine
WO2011051923A1 (en) 2009-11-02 2011-05-05 Patrick Mccormick A quick hitch coupler

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