EP3009570B1 - Werkzeughalter für baustellen- oder baumaschine - Google Patents

Werkzeughalter für baustellen- oder baumaschine Download PDF

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Publication number
EP3009570B1
EP3009570B1 EP15188105.9A EP15188105A EP3009570B1 EP 3009570 B1 EP3009570 B1 EP 3009570B1 EP 15188105 A EP15188105 A EP 15188105A EP 3009570 B1 EP3009570 B1 EP 3009570B1
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EP
European Patent Office
Prior art keywords
tool
tool holder
gripping
locking cylinder
gripping pins
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.)
Active
Application number
EP15188105.9A
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English (en)
French (fr)
Other versions
EP3009570A1 (de
EP3009570C0 (de
Inventor
Henri Marchetta
Maxime Boni
Nicolas PUTOD
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.)
Groupe Mecalac SAS
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Groupe Mecalac SAS
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Publication date
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Publication of EP3009570A1 publication Critical patent/EP3009570A1/de
Application granted granted Critical
Publication of EP3009570B1 publication Critical patent/EP3009570B1/de
Publication of EP3009570C0 publication Critical patent/EP3009570C0/de
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Anticipated expiration legal-status Critical

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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
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/308—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • 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
    • 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
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • 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
    • E02F3/3636—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using two or four movable transversal pins

Definitions

  • the present invention relates to the technical field of public works machinery. It relates to a tool carrier for construction machinery used for example on urban construction sites, railway works, service and maintenance sites.
  • the invention relates more particularly to a tool holder for construction machinery, allowing the driver of the machinery to pick up and automatically assemble a work tool.
  • Construction or public works machines of the handling machine, loader or elevator type, of the loader-excavator type earth-moving machine or the like comprise work equipment in the form of an articulated arm, at the end of which is installed a work tool.
  • the work tools generally consist of either a bucket, a shovel, a loading bucket, or a hydraulic tool (for example, rock breaker, auger, brush cutter, etc.) or others still, depending on the type of use.
  • a hydraulic tool for example, rock breaker, auger, brush cutter, etc.
  • changing and assembling these work tools proves to be a long and difficult operation, taking into account on the one hand, the mass of each of them, and on the other hand, the conditions under which this change takes place, most generally on site, that is to say on construction sites.
  • the Applicant has described a construction machine comprising an arm at the end of which is fixed a tool holder allowing the automatic handling of a tool.
  • the assembly of the tool on the tool holder is carried out by means of several sets of frustoconical pins present on the tool holder and corresponding housings carried by the tool.
  • the driver wishes to attach a tool to the tool holder, he must simultaneously insert the pairs of nipples into the housings. To do this, the driver must position the construction machine in relation to the tool so that the nipples are strictly aligned with the female housings.
  • This alignment step requires a certain amount of dexterity on the part of the driver because he must first correctly position the construction machine in relation to the tool so that the pins are aligned with the housings then, secondly, control the articulated arm so that the nipples fit into the female housings.
  • the Applicant subsequently proposed in the document FR 2 708 679 A1 a tool holder comprising housings in a lower part and a horizontal axis in an upper part.
  • the horizontal axis makes it easier to insert the pins present at a lower part of the tool into the housings of the tool holder.
  • the tool comprises at an upper part a set of legs having lights, intended to serve as a guide to the horizontal axis of the tool holder.
  • the horizontal axis is engaged and progresses through said slots, the tool tilts until the sockets automatically engage in the female housings.
  • the document DE 41 09 783 offers a fixing device between a tool and a tool holder by means of a movable cylinder ensuring locking of the tool on the tool holder.
  • the tool comprises a front anchor point and a rear anchor point intended to receive two axes of the tool holder.
  • Each anchor point comprises two C-shaped pieces intended to surround a part corresponding substantially to 50% of the perimeter of the axis of the tool holder.
  • the cylinder adjusts the distance between the C-shaped parts so as to lock the tool holder axes in the C-shaped parts to lock the tool on the tool holder.
  • the C-shaped parts do not allow the tool to be retained on the tool holder, particularly in the event of a large amplitude tilting movement.
  • the object of the present invention therefore aims to overcome the drawbacks of the prior art by proposing a new tool holder for construction equipment, allowing a driver of the machine to grasp a tool with greater freedom in the positioning of the machine relative to the tool.
  • Another objective of the invention is to provide a solution which makes it possible to eliminate, or at least reduce to a minimum, the risk of the tool falling during assembly operations.
  • the pick-up of the tool by the construction machine is quick and easy, and the operator of the machine has perfect visibility of the parts that he must mutually engage.
  • Centering of the tool on the tool holder is done automatically, by tilting the tool on the gripping axes when it is lifted. Thanks to the gripping fingers, the tool cannot fall from the tool holder, even in the event of accidental unlocking.
  • the receiving parts are in the form of hooks or semi-circular notches whose internal diameter is slightly greater than the external diameter of the gripping axes which they are able to receive.
  • These hooks allow you to hold the tool safely, quickly and easily. They also allow the tool to be mounted in one direction or the other, which can be useful particularly for buckets, which can be used as a loader or as an excavator, i.e. upside down if necessary, because the tool holder is reversible.
  • the fixed part of the locking cylinder comprises a mounting axis on each of its lateral faces which is held on the fork by a chamfered retaining ring.
  • the movable part of the locking cylinder comprises a mounting axis on each of its faces lateral which is held at the end of the assembly of connecting rods and cylinders by a chamfered retaining ring.
  • the tool holder can thus take the tool at a small angle, thanks to the gripping chamfers.
  • the locking cylinder is a hydraulic cylinder.
  • the locking cylinder is equipped with a non-return valve which blocks the fluid in the large chamber when the locking cylinder is subjected to external forces.
  • This non-return valve can be placed in the stem as close as possible to the chamber to be protected. It helps prevent the gripping axes from accidentally coming together in order to prevent the tool from being unlocked unintentionally.
  • the locking cylinder has an overtravel provided so that the extended locking position of the locking cylinder does not correspond to the end of its stroke.
  • the tool holder is provided with play compensation to compensate for wear.
  • the different axes of the tool holder undergo a surface treatment aimed at increasing their resistance to wear and they are removable so that they can be easily replaced without having to completely disassemble the tool holder or replace it entirely.
  • the locking cylinder is equipped with means for detecting the position of the rod so as to ensure proper locking of the tool by the tool holder.
  • the tool can include receiving means on several of its faces to be taken by the tool holder in several locations and positions.
  • This architecture also allows a weight saving compared to known solutions.
  • the tool holder (1) as shown in isolation on the figure 1 is intended to equip the free end of the working arm (2) with a construction machine, for example of the excavator type, as shown in the figure 2 .
  • the working arm (2) comprises a balance wheel (3) ending in a fork (4) and equipped with a set of connecting rods and cylinders (5) intended to manipulate the tool (6) mounted on its free end.
  • This set of connecting rods and cylinders (5) is known to those skilled in the art and will not be detailed here.
  • the tool holder (1) comprises a locking cylinder (7) comprising a fixed part (8) mounted at the free end of the balance (3), and a movable part (9) connected to the fixed part (8) by a rod (10) and mounted at the end of the assembly of connecting rods and cylinders (5).
  • the locking cylinder (7) is a hydraulic cylinder.
  • the fixed part (8) of the cylinder locking (7) has a mounting pin (13, 14) tiltably mounted between the flanges (15, 16) of the fork (4).
  • the mounting pins (13, 14) are mounted on the flanges (15, 16) and held laterally by the retaining rings (17, 18).
  • the movable part (9) of the locking cylinder (7) has a mounting axis (21, 22) mounted tilting at the end of the assembly connecting rods and cylinders (5), this assembly being locked laterally by retaining rings (23, 24).
  • the tool holder (1) is thus mounted tilting at the level of the free end of the balance (3) so as to be able to pivot in a vertical plane by the movements of the set of connecting rods and cylinders (5).
  • Each of the mounting axes (13, 14, 21, 22) extends beyond the retaining rings (17, 18, 23, 24) by a gripping axis (25, 26, 27, 28).
  • first gripping axes 25, 26
  • second gripping axes 27, 28
  • the different axes (13, 14, 21, 22, 25, 26, 27, 28) of the tool holder (1) are the only parts likely to wear out by friction with the other parts in contact. Consequently, these axes (13, 14, 21, 22, 25, 26, 27, 28) preferentially undergo a surface treatment aimed at increasing their resistance to wear, and they are removable so as to be able to be replaced easily without having to completely disassemble the tool holder (1), nor replace it entirely.
  • the tool holder (1) makes it possible to assemble a tool (6) in a reversible manner, thus allowing, for example, to mount a bucket in the excavation position (cf. Figure 3 ) or in loading position (see Figure 4 ).
  • tool (6) is shown by way of example in the form of a bucket, it is understood that the invention is intended for all types of work tools such as those mentioned above .
  • the tool (6) comprises at least two receiving assemblies (29, 30) designed to cooperate with the gripping axes (25, 26, 27, 28) of the tool holder (1).
  • These receiving assemblies (29, 30) can be provided on the rear face of the tool (6), that is to say on its face directed towards the tool holder (1) when it is mounted on that -this. They can also be provided on the front face of the tool (6), particularly in the case where it can be used on one side or the other.
  • the sets of reception (29, 30) can be provided in one direction or the other.
  • these receiving assemblies (29, 30) must always be provided in pairs for receiving the gripping axes (25, 26, 27, 28), a receiving assembly (29 , 30) which can be common to two adjacent pairs.
  • Each receiving assembly (29, 30) has two receiving parts (31, 32, 33, 34) whose openings are opposite each other and each intended to receive one of the gripping axes (25, 26, 27, 28 ).
  • These receiving parts (31, 32, 33, 34) are preferably in the form of hooks or semi-circular notches whose internal diameter is slightly greater than the external diameter of the gripping axes (25, 26, 27, 28) which they get.
  • the first receiving parts (31, 33) each have a gripping finger (35, 36) partially covering their opening, while the second receiving parts (32, 34) do not. .
  • gripping fingers 35, 36
  • These gripping fingers facilitate and secure the gripping of a tool (6) by the tool holder (1) as described below.
  • the operator moves the working arm (2) so as to approach the tool holder (1) at the level of the receiving assemblies (29, 30) and to introduce the first gripping axes (25, 26) into the first receiving parts (31, 33) under the gripping fingers (35, 36).
  • This step does not present any particular difficulty for the operator who has a clear view of the tool holder (1) and the receiving assemblies (29, 30) of the tool (6).
  • the retaining rings (17, 18) and (23, 24) are preferably chamfered to guide and facilitate the gripping of the tool (6) by the gripping axes (25, 26, 27, 28) of the tool holder (1).
  • the operator then raises the working arm (2) (cf. Figure 6 ) so as to lift the tool (6) at the level of the first receiving parts (31, 33) by the first gripping axes (25, 26).
  • the first gripping axes (25, 26) come to rest at the bottom of the first receiving parts (31, 33) and the tool (6) is centered on it -even on the tool holder (1).
  • the tool (6) is then suspended by the first gripping axes (25, 26) in a tilting manner around the receiving assemblies (29, 30). Thanks to the fingers of gripping (35, 36), the tool is not likely to become detached from the first gripping axes (25, 26), even in the event of a large amplitude rocking movement.
  • the locking cylinder (7) is then retracted (see figure 7 ), so as to bring the first gripping axes (25, 26) as close as possible to the second gripping axes (27, 28).
  • the operator then activates the set of connecting rods and cylinders (5) of the working arm (2) (cf. figure 8 ) so as to introduce the second gripping axes (27, 28) into the receiving assemblies (29, 30).
  • the cylinder being in the retracted position, the second gripping axes (27, 28) can thus penetrate into the receiving assemblies (29, 30) and find themselves facing the second receiving parts (32, 34).
  • the locking cylinder (7) is then extended (see Figure 10 ), so as to distance the first gripping axes (25, 26) from the second gripping axes (27, 28). These gripping axes (25, 26, 27, 28) then find themselves engaged at the bottom of each of their associated receiving part (31, 33, 34, 35), which blocks the tool (6) in position.
  • the tool (6) is then locked on the tool holder (1) and can be used in a conventional manner (see Figure 11 ).
  • the first gripping axes (25, 26) are then introduced into the receiving assemblies (29, 30), and are found opposite the second parts receptors (32, 34) (cf. Figure 15 ). The operator then continues the movement of the set of connecting rods and cylinders (5) until the tool (6) tilts around the second gripping axes (27, 28).
  • the tool (6) is then locked on the tool holder (1) and can be used in a conventional manner (see Figure 17 ).
  • the sequences described above are substantially similar.
  • the tool holder (1) advantageously allows a tool (6) to be taken and locked in both directions.
  • the cylinder is in the extended position and the gripping axes (25, 26, 27, 28) are wedged into abutment at the bottom of each of their associated receiving part (31, 33, 34, 35).
  • the tool (6) is held and cannot be released.
  • the locking cylinder (7) is preferably equipped with a non-return valve which blocks the fluid in the large chamber when the cylinder locking (7) is subjected to external forces, for example induced by digging.
  • This non-return valve is preferably placed in the rod (10) as close as possible to the chamber to be protected, to avoid possible leaks between the chamber and the valve, if the latter were offset and connected to the chamber by flexible hoses. or the like.
  • the extended locking position of the locking cylinder (7) does not correspond to the end of stroke of this, which makes it possible to continue to use the same locking cylinder (7) for the tool holder (1) in the event of play originating for example from a problem of wear or deformation of the parts.
  • the extended locking position of the locking cylinder (7) requires a stroke greater than that previously necessary for locking, a greater stroke is available for the locking cylinder (7).
  • the locking cylinder (7) then comprises a means for detecting the position of the rod (10) so as to ensure proper locking of the tool (6) by the tool holder (1).
  • the invention as defined by the claims can be adapted to any type of tool, and the tools can comprise several receiving assemblies (29, 30) provided in pairs, for example on their front and rear faces in order to be able to freely mount them in one direction or the other on the tool holder (1).
  • a transport bucket allowing several tools to be transported with the one mounted on the machine for traveling on construction sites is shown on the Figure 20 , comprising several receiving assemblies (29, 30) provided in pairs.

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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)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Claims (8)

  1. Bauteil bestehend aus einem Werkzeug (6) und einem Werkzeughalter (1) vorgesehen, um die schnelle und lösbare Montage eines Werkzeugs (6) am freien Ende des Arbeitsauslegers (2) einer Bau- oder Straßenbaumaschine zu ermöglichen, der Arbeitsausleger (2) umfasst dabei einen Ausleger (3), der in einer Gabel (4) endet und mit einem Bauteil aus Stangen und Hebern (5) ausgerüstet ist, vorgesehen zur Betätigung des Werkzeugs (6), wenn es auf dem freien Ende montiert ist, bei dem :
    · der Werkzeughalter (1) einen Verriegelungszylinder (7) umfasst, der einen festen Teil (8) enthält, der drehbar auf dem freien Ende des Auslegers (3) montiert ist sowie einen mobilen Teil (9), verbunden mit dem festen Teil (8) über eine Stange (10) und schwenkbar montiert am Endstück des Bauteils aus Stangen und Hebern (5) ;
    · der Werkzeughalter (1) zwei erste Greifachsen (25, 26) enthält, die sich seitlich auf jeder Seite des festen Teils (8) verlängern und zwei sekundäre Greifachsen (27, 28), die sich seitlich auf jeder Seite des mobilen Teils (9) des Verriegelungszylinders (7) verlängern;
    · das Werkzeug (6) mindestens zwei Aufnahmeeinheiten (29, 30) enthält, die in der Lage sind, mit den Greifachsen (25, 26, 27, 28) des Werkzeughalters (1) zu kooperieren;
    · jede Aufnahmeeinheit (29, 30) dabei zwei Greiffinger (35, 36) enthält, die einen ersten Aufnahmeteil (31, 33) bilden und einen zweiten Aufnahmeteil (32, 34), dessen Öffnungen einander gegenüberliegen und jeweils zur Aufnahme einer der ersten Greifachsen (25, 26) und einer der zweiten Greifachsen (27, 28) vorgesehen sind, um das Werkzeug (6) auf dem Werkzeughalter (1) zu halten;
    · das Werkzeug (6) auf dem Werkzeughalter (1) mit Hilfe des Verriegelungszylinders (7) ver- und entriegelt werden kann, indem der Abstand zwischen dem mobilen Teil (9) und dem festen Teils (8) zwischen einer Ausgangsposition des Verriegelungszylinders (7), in der jede der ersten Greifachsen (25, 26) sich im Anschlag an der Rückseite ihres zugehörigen Aufnahmeteils (31, 33 oder 32, 34) befindet und jede der sekundären Greifachsen (27, 28) sich im Anschlag an der Rückseite ihres zugehörigen Aufnahmeteilsl (32, 34 oder 31, 33) befindet und einer Eingangsposition des Verriegelungszylinders (7), in der die Greifachsen aus den Aufnahmeeinheiten (29, 30) herausgezogen werden können, umkehrbar verstellt wird;
    dadurch gekennzeichnet, dass
    · die Form der Greiffinger (35, 36) so vorgesehen ist, dass das Werkzeug (6) nicht aus den ersten Greifachsen (25, 26) rutscht, wenn es während der Montage des Werkzeugs zu einer Kippbewegung mit großer Amplitude kommt, und
    · die ersten Aufnahmeteile (31, 33) jeweils einen Greiffinger (35, 36) aufweisen, der teilweise ihre Öffnung verdeckt, während die sekundären Aufnahmeteile (32, 34) nicht darüber verfügen,
    so dass die Montage des Werkzeugs (6) die folgenden Schritte umfasst, in denen;
    · die Bedienperson den Arbeitsausleger (2) so verschiebt, dass der Werkzeughalter (1) in Höhe der Aufnahmeeinheiten (29, 30) kommt und die ersten Greifachsen (25, 26) in die ersten Aufnahmeteile (31, 33) unter den Greiffingern (35, 36) eingeführt werden;
    · die Bedienperson den Arbeitsausleger (2) wieder anhebt, so dass das Werkzeug (6) in Höhe der ersten Aufnahmeteile (31, 33) durch die ersten Greifachsen (25, 26) angehoben wird. Dadurch verkeilen sich, durch das Eigengewicht des Werkzeugs (6), die ersten Greifachsen (25, 26) auf der Rückseite der ersten Aufnahmeteile (31, 33) und das Werkzeug (6) zentriert sich selbst auf dem Werkzeughalter (1),
    · der Verriegelungszylinder (7) wird zurückgezogen, um so die ersten Greifachsen (25, 26) an die zweiten Greifachsen (27, 28) anzunähern,
    die Bedienperson betätigt dann das Bauteil aus Stangen und Hebern (5) des Arbeitsauslegers (2), um so die sekundären Greifachsen (27, 28) in die Aufnahmeeinheiten (29, 30) einzuführen und so die sekundären Greifachsen (27, 28) in Anschlag gegen die Rückseite der Aufnahmeeinheiten (29, 30) zu bringen und dort einen Druck auszuüben, der zum Kippen des Werkzeugs (6) um die ersten Greifachsen (25, 26) herum führt, der Verriegelungszylinder (7) wird daraufhin herausgezogen, um so die ersten Greifachsen (25, 26) von den sekundären Greifachsen (27, 28) zu entfernen.
  2. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Aufnahmeteile (31, 32, 33, 34) die Form von Haken oder halbkreisförmigen Vertiefungen haben, deren Innendurchmesser etwas größer ist, als der Außendurchmesser der Greifachsen (25, 26, 27, 28), die sie aufnehmen können.
  3. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der feste Teil (8) des Verriegelungszylinders (7) eine Montageachse (13, 14) auf jeder seiner Seitenflächen (11, 12) umfasst, die auf der Gabel (4) über einen abgeschrägten Haltering (17, 18) gehalten wird.
  4. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der mobile Teil (9) des Verriegelungszylinders (7) eine Montageachse (21, 22) auf jeder seiner Seitenflächen (19, 20) umfasst, die in Höhe des Endes des Bauteils aus Stangen und Hebern (5) über einen abgeschrägten Haltering (23, 24) gehalten wird.
  5. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verriegelungszylinder (7) mit einem Rückschlagventil ausgerüstet ist, das die Flüssigkeit in der großen Kammer blockiert, wenn auf den Verriegelungszylinder (7) Kräfte von außen einwirken.
  6. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass das Rückschlagventil in der Stange (10), möglichst nahe an der zu schützenden Kammer untergebracht ist.
  7. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verriegelungszylinder (7) einen Nachlauf aufweist, so vorgesehen, dass die Verriegelungseinfahrposition des Verriegelungszylinders (7) nicht dessen Endanschlag entspricht.
  8. Bauteil gebildet aus einem Werkzeug (6) und einem Werkzeughalter (1) nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass der Verriegelungszylinder (7) mit einem Mittel zur Positionserkennung der Stange (10) ausgerüstet ist, so dass eine einwandfreie Verriegelung des Werkzeugs (6) durch den Werkzeughalter (1) gewährleistet ist.
EP15188105.9A 2014-10-13 2015-10-02 Werkzeughalter für baustellen- oder baumaschine Active EP3009570B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1459818A FR3027037B1 (fr) 2014-10-13 2014-10-13 Porte-outil pour engin de chantier ou de travaux publics

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EP3009570B1 true EP3009570B1 (de) 2024-04-17
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EP (1) EP3009570B1 (de)
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US20170121928A1 (en) * 2015-10-29 2017-05-04 Caterpillar Inc. Stick and coupler assembly
US10156055B2 (en) * 2016-05-06 2018-12-18 Caterpillar Inc. Integrated excavator pin grabber quick coupler
EP3434827B1 (de) * 2017-07-25 2020-06-10 Caterpillar Inc. Kopplungsanordnung zur kopplung eines arms an ein arbeitswerkzeug
GB2573550A (en) * 2018-05-10 2019-11-13 Verachtert Nederland B V Worktool coupler
CN110296129A (zh) * 2019-04-19 2019-10-01 国家电网有限公司 千斤顶的固定装置
DE102022127836A1 (de) * 2022-10-21 2024-05-02 Liebherr-Hydraulikbagger Gmbh Baggerlöffel

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Also Published As

Publication number Publication date
FR3027037B1 (fr) 2018-01-26
EP3009570A1 (de) 2016-04-20
US20170275847A1 (en) 2017-09-28
FR3027037A1 (fr) 2016-04-15
US10815635B2 (en) 2020-10-27
EP3009570C0 (de) 2024-04-17
WO2016059328A1 (fr) 2016-04-21

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