WO2023001892A1 - Dispositif de pivotement pour un outil porté d'un excavateur - Google Patents

Dispositif de pivotement pour un outil porté d'un excavateur Download PDF

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Publication number
WO2023001892A1
WO2023001892A1 PCT/EP2022/070362 EP2022070362W WO2023001892A1 WO 2023001892 A1 WO2023001892 A1 WO 2023001892A1 EP 2022070362 W EP2022070362 W EP 2022070362W WO 2023001892 A1 WO2023001892 A1 WO 2023001892A1
Authority
WO
WIPO (PCT)
Prior art keywords
pivoting
attachment
actuator
pivot
mount
Prior art date
Application number
PCT/EP2022/070362
Other languages
German (de)
English (en)
Inventor
Thomas Jansen
Original Assignee
Thomas Jansen
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 LU500452A external-priority patent/LU500452B1/de
Application filed by Thomas Jansen filed Critical Thomas Jansen
Priority to EP22754066.3A priority Critical patent/EP4374014A1/fr
Publication of WO2023001892A1 publication Critical patent/WO2023001892A1/fr

Links

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
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators
    • 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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor

Definitions

  • the invention relates to a pivoting device for an excavator for pivoting an attachment, the pivoting device being releasably attachable to an excavator boom end of an excavator boom of the excavator, the pivoting device having a pivoting device body attachable to the excavator boom and at least one pivoting actuator designed as a linear drive, the at least one pivoting actuator has two components that can be displaced relative to one another along a longitudinal axis of the pivot actuator, the pivot device having an attachment receptacle arranged on the pivot device body so that it can pivot about a pivot axis, the pivot device having at least one attachment fixed to the pivot device body
  • swivel actuator mount wherein the swivel actuator is articulated with a first component to the at least one swivel actuator mount and is articulated with a second component to the attachment mount, so that the attachment mount can be pivoted about the pivot axis by means of the pivot actuator.
  • excavators In order to be able to adapt excavators as flexibly and versatilely as possible to different application scenarios, excavators usually have couplings, in particular so-called quick-change devices, which are arranged at the end of an excavator arm. By means of these couplings different attachments, such as spoons, hooks, grabs, demolition chisels or similar tools used on the construction site are arranged on the excavator arm.
  • a tiltrotator In order to be able to work as effectively as possible with the attachments described, it is also customary for a swivel/rotation device, a so-called tiltrotator, to be arranged between the coupling and the attachment.
  • a tiltrotator is formed by a pivoting device and a rotating device. This allows the attachment to be tilted and rotated.
  • Such a configuration of the excavator arm makes it possible for the attachment to reach work areas that are difficult to access and allows particularly precise processing within the work area.
  • Hydraulic drives such as hydraulic cylinders
  • tiltrotators By actuating and extending the hydraulic cylinder, a tilting of the attachment attached to the tiltrotator is caused.
  • the rotary movement of the tiltrotator is usually carried out by means of hydraulically driven rotary drives.
  • a particular disadvantage of the known systems is that the hydraulic drives or the hydraulic cylinders are arranged in such a way that they protrude beyond the tiltrotator.
  • the tiltrotator has a large space requirement.
  • the known tiltrotators can only be used to a limited extent, particularly when working in narrow work areas, for example in old buildings, in shafts, in canals or the like.
  • hydraulic cylinders protruding from the tiltrotator that they collide with objects from the work area during the working movement.
  • the second component is arranged displaceably at least in sections within a volume surrounded at least in sections by the first component.
  • Linear drives are available in different designs and sizes, so that a suitable linear drive can be selected depending on the work task.
  • Linear drives can be driven hydraulically, electrically and/or pneumatically, for example.
  • the linear drive can be designed, for example, as an electrically driven ball screw drive or as an electrically operated rack and pinion drive.
  • the second component is designed as a driven and moving threaded spindle or as a moving toothed rack, which is articulated on the attachment mount.
  • the first component is formed by a drive housing of the linear drive, which is articulated to the pivoting device body.
  • Ball screw drives and rack and pinion drives can be used to carry out fast and particularly precise displacement movements.
  • the spindle turns of the threaded spindles and tooth flanks of the racks have a low impact load limit and are also sensitive to dirt. Protecting such linear drives against such environmental influences is only possible with great effort. Hence the field of application of such linear drives on construction sites is rather limited.
  • the linear drive has a hydraulic cylinder.
  • the first component is designed as a cylinder housing and the second component as a piston rod.
  • the cylinder housing has a cylinder head through which the piston rod is passed to the outside, a cylinder tube and a cylinder bottom.
  • Hydraulic cylinders are often used in the field of work machines used on construction sites, since they can transmit large forces, have a high level of reliability, are easy to repair, repair and replace. Hydraulic cylinders usually have quick-release couplings, by means of which they can be easily connected to a hydraulic system of a working machine.
  • the first component of the swivel actuator is mounted on the swivel actuator mount such that the swivel actuator can be rotated about a swivel actuator swivel axis oriented parallel to the swivel axis and spaced apart from the swivel axis. Due to the fact that the pivot axis and the pivot actuator pivot axis are arranged at a distance from one another, the volume of installation space enclosed by the pivot actuator mount, the pivot device body and the attachment receptacle can advantageously be configured to be large. A particularly large cylinder housing of the hydraulic cylinder can thus be arranged in the volume of installation space.
  • a hydraulic cylinder a particularly large size can be used, so that the pivoting device can be operated with particularly large pivoting forces generated by the pivot actuator. In this way, particularly large loads can be moved with the pivoting device.
  • the first component is articulated on an outside of the first component on the pivot actuator mount and the second component is articulated on an end facing the attachment mount on the attachment mount.
  • the second component is articulated on an upper side of the attachment mount facing the pivoting device.
  • the second component is designed as a piston rod when the swivel actuator is designed as a hydraulic cylinder and can be displaced within the volume enclosed by the first component, here the cylinder housing, the second component can be designed to be particularly small.
  • an outside diameter of the piston rod can be chosen to be smaller than an outside diameter of the cylinder housing.
  • the first component is seen in the longitudinal axis of the swivel actuator in the middle of the
  • Pivot actuator mount pivotally hinged.
  • the swivel actuator mount can be designed in the form of a fork, so that the first component of the swivel actuator, designed, for example, as a hydraulic housing, can be arranged within the volume enclosed by the fork-shaped swivel actuator mount.
  • the pivoting actuator can thus be arranged on the pivoting actuator holder in a particularly space-saving manner, so that a pivoting device can be configured with a low installation height.
  • the pivoting actuator is arranged completely between the pivoting device body and the attachment receptacle, so that the pivoting actuator is arranged within a volume enclosed by the pivoting device body and the attachment receptacle.
  • the swivel actuator is thus particularly well protected against possible collisions with objects located in the work area.
  • the invention provides that the pivoting device body has a connecting shaft arranged along the pivot axis, the attachment mount being pivotably fixed to the connecting shaft and the connecting shaft being non-rotatably connected to the pivoting device body.
  • the connecting shaft By using the connecting shaft, the common pivoting axis of the pivoting device body and the attachment mount is predetermined, so that a particularly good power transmission of the pivoting device can be carried out.
  • the non-rotatable determination of the pivoting actuator mount on the pivoting device body can, for example, by pressing the
  • Swivel actuator mount onto the connecting shaft can be easily fixed by means of a joint connection, such as a welded connection.
  • an advantageous implementation of the pivoting device according to the invention provides that the end of the excavator boom is designed in the shape of a fork, so that the pivoting device is surrounded at least in sections by two opposite side elements of the end of the excavator boom.
  • the swivel actuator can be aligned in such a way that it is arranged completely within a volume spanned by the side elements. A collision of the swivel actuator with objects or attachments during operation of the excavator boom can thus be avoided.
  • an advantageous implementation of the idea of the invention provides that the pivoting device has a rotation device, with the rotation device being fixed on an underside of the pivoting device facing away from the excavator boom, so that the pivoting device and the rotation device a swivel-rotation device is formed, which can be tilted about the tilting axis by means of the swivel device, the swivel
  • the rotation device has the attachment mount, by means of which the attachment can be fixed to the excavator boom, wherein the attachment fixed to the attachment mount can be rotated about an axis of rotation by means of a rotary actuator, which is arranged perpendicularly to the tilting axis.
  • the pivoting device can be designed in such a way that it is fixed to the excavator boom by means of a coupling of a quick-change device.
  • the attachment mount is arranged on an underside of the rotating device that faces away from the pivoting device.
  • the pivoting rotation device can be produced with a low structural height.
  • the rotary actuator is designed as a hydraulically driven worm drive.
  • This has a hydraulic motor and a worm gear.
  • the worm gear has a worm shaft with a helical thread and a worm wheel designed as a toothed wheel.
  • a worm gear allows endless rotation of the worm wheel or of the component fixed to the worm wheel, such as the attachment mount.
  • Worm drives can be designed to be small, so that the pivoting/rotating device can be designed in a particularly space-saving manner and with a low installation height.
  • the rotation device is designed as an attachment and is releasably fixed to the attachment receptacle of the pivoting device, the rotation device fixed to the pivoting device having a has more attachments.
  • the attachment receptacle and the additional attachment receptacle are of identical design.
  • the attachment can be arranged optionally and depending on the application on the attachment mount of the pivoting device or on the other attachment mount of the rotating device.
  • an advantageous embodiment of the concept of the invention provides that the attachment mount has two flat mounting sections which are formed on opposite sides of the pivoting device or the pivoting/rotating device, with an attachment having an attachment on the attachment mount a U-shaped coupling section can be fixed in such a way that mutually opposite coupling surfaces of the coupling section can be brought into contact with the flat receiving sections.
  • the pivoting device or the rotating device is at least partially encompassed by the attachment.
  • the pivoting-rotation device described has a particularly low structural height, since it protrudes only partially and for the most part with the rotation device beyond one end of the excavator boom. It is advantageously provided according to the invention that the pivoting/rotating device can be of modular as well as integral design.
  • modular means that the Rotation device is releasably fixed to the pivoting device.
  • Integral means that the rotation device and the pivoting device are designed as a coherent assembly, wherein it can advantageously be provided that the rotation device and the pivoting device are arranged in a common housing.
  • an advantageous embodiment of the pivoting device according to the invention provides that the pivoting device and/or the rotation device can be connected to an excavator energy system.
  • the supply lines can be laid particularly easily along the excavator handle.
  • flexible hoses can be used for conducting hydraulic fluids in order to compensate for changes in distance between two moving components due to relative movements.
  • so-called rotary feedthroughs are available for a rotary movement, by means of which hydraulic fluids or electrical energy can be transmitted.
  • Figure 1 is a schematic representation of the pivoting device according to the invention in a perspective view
  • Figure 2 is a schematic representation of the pivoting device according to the invention in a sectional view along the section line AA shown in Figure 1
  • FIG. 3 shows a schematic representation of the pivoting device according to the invention with a rotation device attached thereto
  • Figure 4 is a schematic representation of a further embodiment of the pivoting device according to the invention in a perspective view
  • FIG. 5 shows a schematic representation of the further pivoting device according to the invention in a sectional view along the section line B-B shown in FIG.
  • FIG. 1 shows a schematic representation of the pivoting device 1 according to the invention for an excavator for pivoting an attachment.
  • Pivoting device 1 can be releasably fixed to an end of an excavator boom of the excavator, not shown in FIG.
  • An attachment mount 4 is arranged on the pivoting device body 3 such that it can be pivoted about a pivot axis 5 .
  • the pivoting device 1 has two pivoting actuators 7 configured as hydraulic cylinders 6, with a second component 9 of the pivoting actuator 7 being arranged at least in sections within a volume surrounded at least in sections by a first component 10 of the pivoting actuator 7 in a longitudinal direction 11 of the pivoting actuator 7.
  • the swivel device 1 has a plurality of swivel actuator mounts 8, the Pivot actuators 7 are articulated with the first component 10 on the pivot actuator mount 8 and are articulated with the second component 9 on the attachment mount 4, so that by means of the pivot actuator 7 the
  • Attachment receptacle 4 can be pivoted about the pivot axis 5.
  • the pivoting device body 3 has a connecting shaft 12 which is arranged along the pivot axis 5 and on which the attachment receptacle 4 is pivotably fixed.
  • the swivel actuator mount 8 is fixed in a rotationally fixed manner on the connecting shaft 12 .
  • the first component 10 is designed as a cylinder housing 14 and the second component 9 as a piston rod 13 .
  • the piston rod 13 is articulated on the attachment mount 4 .
  • a receiving bore is made in the piston rod 13, through which a receiving bolt 15 can be inserted, by means of which a detachable connection between the piston rod 13 and the attachment receptacle 4 is made.
  • the first component 10 embodied as a cylinder housing 14 is articulated on the swivel actuator mount 8 , the swivel actuator mount 8 being fixed in a rotationally fixed manner on the connecting shaft 12 .
  • the attachment mount 4 can be pivoted about the pivot axis 5 .
  • FIG. 2 shows a schematic illustration of the pivoting device 1 according to the invention in a sectional view along the section line AA illustrated in FIG.
  • the swivel actuator 7 is connected to the first component 10 designed as a piston rod 13 of the swivel actuator holder 8 and articulated with the second component 9 embodied as a cylinder housing 14 on the attachment mount 4 .
  • the attachment mount 4 is fixed pivotably on the connecting shaft 12 .
  • the swivel actuator mount 8 is fixed in a rotationally fixed manner on the connecting shaft 12 .
  • the hydraulic cylinder 6 is completely within the through the swing device body 3 and through the
  • Attachment recording 4 enclosed volume arranged.
  • FIG. 3 shows a schematic representation of the pivoting device 1 according to the invention with a rotation device 16 attached thereto.
  • the rotation device 16 is fixed on an underside of the swivel device 1 facing away from the excavator boom and can be rotated about the swivel axis 5 .
  • the attachment mount 4 is arranged on an underside of the rotating device 16 facing away from the pivoting device 1 .
  • a rotary actuator 18 designed as a worm drive 17
  • the attachment mount 4 which is arranged perpendicularly to the pivot axis 5 , can be rotated about an axis of rotation 19 .
  • FIG. 4 shows a schematic representation of a further embodiment of the pivoting device 1 according to the invention for an excavator for pivoting an attachment.
  • the pivoting device 1 can be releasably secured to the end of an excavator's boom, not shown in FIG.
  • the attachment mount 4 is arranged on the pivot device body 3 such that it can pivot about a pivot axis 5 .
  • the two designed as a hydraulic cylinder 6 swivel actuators 7 of Pivoting device 1 are articulated with the first component 10 to be pivotable about a pivot actuator pivot axis 20 on the pivot actuator mounts 8 .
  • the swivel actuators 7 are articulated on the attachment mount 4 with the second component 9 .
  • the swing actuator bracket 8 is rigidly fixed to the swing device body 3 .
  • the attachment mount 4 can be pivoted about the pivot axis 5 .
  • FIG. 5 shows a schematic representation of the pivoting device 1 according to the invention in a sectional view along the section line A-A shown in FIG.
  • the swivel actuator 7 is articulated with the first component 10 embodied as a piston rod 13 on the swivel actuator mount 8 and with the second component 9 embodied as a cylinder housing 14 on the attachment mount 4 .
  • the swing actuator bracket 8 is rigidly fixed to the swing device body 3 .
  • Pivoting device 2 quick change device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne un dispositif de pivotement (1) pour un excavateur servant à faire pivoter un outil porté. Le dispositif de pivotement (1) peut être fixé de manière amovible à une extrémité du bras d'excavateur de l'excavateur. Le dispositif de pivotement (1) comporte un corps de dispositif de pivotement (3) pouvant être fixé sur le bras d'excavateur et au moins un actionneur de pivotement (7) réalisé sous la forme d'un entraînement linéaire. Ledit au moins un actionneur de pivotement (7) comporte deux composants (8, 9) déplaçables l'un par rapport à l'autre le long d'un axe longitudinal (11) de l'actionneur de pivotement (7). Le dispositif de pivotement (1) présente un logement d'outil porté (4) disposé sur le corps de dispositif de pivotement (3) de manière à pouvoir pivoter autour d'un axe de pivotement (5). Le dispositif de pivotement (1) comporte au moins un support d'actionneur de pivotement (8) fixé au corps de dispositif de pivotement (3). L'actionneur de pivotement (7) est articulé avec un premier composant (10) sur ledit au moins un support d'actionneur de pivotement (8) et est articulé avec un second composant (9) sur le logement d'outil porté (4). Au moyen de l'actionneur de pivotement (7), le logement d'outil porté (4) peut pivoter autour de l'axe de pivotement (5). Le second composant (9) est disposé de manière à pouvoir se déplacer au moins par endroits à l'intérieur d'un volume entouré au moins par endroits par le premier composant (10).
PCT/EP2022/070362 2021-07-20 2022-07-20 Dispositif de pivotement pour un outil porté d'un excavateur WO2023001892A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22754066.3A EP4374014A1 (fr) 2021-07-20 2022-07-20 Dispositif de pivotement pour un outil porté d'un excavateur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
LU500452A LU500452B1 (de) 2021-07-20 2021-07-20 Schwenkvorrichtung für ein Anbaugerät eines Baggers
LULU500452 2021-07-20
DE102021122101.3 2021-08-26
DE102021122101 2021-08-26

Publications (1)

Publication Number Publication Date
WO2023001892A1 true WO2023001892A1 (fr) 2023-01-26

Family

ID=82851620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/070362 WO2023001892A1 (fr) 2021-07-20 2022-07-20 Dispositif de pivotement pour un outil porté d'un excavateur

Country Status (2)

Country Link
EP (1) EP4374014A1 (fr)
WO (1) WO2023001892A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723385A1 (fr) * 1994-08-02 1996-02-09 Soc D Fait Lamy Associes Lamy Dispositif de support et de tele-orientation pour un organe de travail
US20050178030A1 (en) * 2004-01-30 2005-08-18 Rene Doucette Ditch digging bucket
CN101424086A (zh) * 2008-12-12 2009-05-06 湖南山河智能机械股份有限公司 挖掘机用摆转装置
US20130101341A1 (en) * 2011-06-22 2013-04-25 Jason Wayne McDonald Excavating Apparatus with Swivel Mount Employing Swivel Adapter with Gear Bearings Having Gears with Divergent Thickness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723385A1 (fr) * 1994-08-02 1996-02-09 Soc D Fait Lamy Associes Lamy Dispositif de support et de tele-orientation pour un organe de travail
US20050178030A1 (en) * 2004-01-30 2005-08-18 Rene Doucette Ditch digging bucket
CN101424086A (zh) * 2008-12-12 2009-05-06 湖南山河智能机械股份有限公司 挖掘机用摆转装置
US20130101341A1 (en) * 2011-06-22 2013-04-25 Jason Wayne McDonald Excavating Apparatus with Swivel Mount Employing Swivel Adapter with Gear Bearings Having Gears with Divergent Thickness

Also Published As

Publication number Publication date
EP4374014A1 (fr) 2024-05-29

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