EP4448882B1 - Engin de chantier autopropulsé - Google Patents

Engin de chantier autopropulsé

Info

Publication number
EP4448882B1
EP4448882B1 EP22830568.6A EP22830568A EP4448882B1 EP 4448882 B1 EP4448882 B1 EP 4448882B1 EP 22830568 A EP22830568 A EP 22830568A EP 4448882 B1 EP4448882 B1 EP 4448882B1
Authority
EP
European Patent Office
Prior art keywords
work machine
adapter
undercarriage
attached
articulating
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
EP22830568.6A
Other languages
German (de)
English (en)
Other versions
EP4448882A1 (fr
EP4448882C0 (fr
Inventor
Markku Jonninen
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.)
Allu Innovation And Research Center Oy
Original Assignee
Allu Innovation And Research Center Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allu Innovation And Research Center Oy filed Critical Allu Innovation And Research Center Oy
Publication of EP4448882A1 publication Critical patent/EP4448882A1/fr
Application granted granted Critical
Publication of EP4448882B1 publication Critical patent/EP4448882B1/fr
Publication of EP4448882C0 publication Critical patent/EP4448882C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/961—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
    • 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
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/968—Storing, handling or otherwise manipulating tools when detached from the machine
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
    • 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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/205—Remotely operated machines, e.g. unmanned vehicles

Definitions

  • the object of the invention is a self-propelled work machine comprising an undercarriage equipped with wheels or track chains, a top carriage supported onto the undercarriage for 360° rotation about a vertical axis, and a first articulating boom pivotably attached to the top carriage and having a first implement attached to the free end thereof, and wherein the undercarriage is fitted with a mounting and pivoting adapter (hereinafter referred to as the adapter) to which a second articulating boom having a second implement attached to the free end thereof is attached, and wherein the adapter comprises a mounting part attached to the undercarriage and a pivoting part attached to the mounting part such that it is pivotable about a vertical axis and having said second articulating boom attached thereto such that it is pivotable about a horizontal axis.
  • the work machine is an excavator
  • the implement is a bucket.
  • Backhoe loaders having an excavator boom at one end of the work machine and a wheel loader boom at the other are previously known. They enable carrying out the work of both machines on the same construction site, i.e., first one and then the other in turn, and only one machine and one driver are required. Combined use of booms for simultaneous work is not possible.
  • Hitachi's prototype machines in which two separate excavator booms controlled by one operator are attached to the rotating top carriage of an excavator, are also known.
  • the problem with this Hitachi is that when pivoting only one of the booms to pick up something from behind, for example, the other boom turns along with it. This placement of the two booms allows them to be used separately only to a limited extent, and the other cannot be programmed to perform its own set of tasks.
  • Publication JP S 5980563 U discloses a work machine of the type mentioned at the outset, wherein the location of the vertical axis of the adapter between the track chains below the top carriage limits the pivot angle of the second articulating boom about the vertical axis. This makes combined use of the booms for simultaneous work difficult, and the publication makes no such suggestion.
  • publication US 6032094 A discloses a work machine equipped with two articulating booms and comprising a system for preventing the work machine from toppling over.
  • This system is equipped with sensors for detecting the position and load of the booms. If the system detects a danger of toppling based on signals from the sensors, the movement of the boom is stopped and an alarm is given, or the boom along with its load is moved to a new position where there is no danger of toppling over.
  • the machine does not comprise a separate pivoting and mounting adapter that could be removably attached to the undercarriage for removing the second boom. Instead, the second boom is attached to a rotating mechanism between the top carriage and the undercarriage, wherein the pivot axis of the rotating mechanism coincides with the pivot axis of a rotating mechanism in the top carriage.
  • the aim of the invention is to provide a work machine, such as an excavator, that can be used in a more versatile way than before, and that is operable to perform tasks that were not previously possible or to substantially speed up and facilitate the performance of some tasks.
  • Fig. 1 and 2 show a self-propelled work machine, such as an excavator, comprising an undercarriage 4 equipped with wheels 5 or track chains, and a top carriage 1 supported via a turntable 18 onto the undercarriage for 360° rotation about a vertical axis.
  • a first articulating boom 2 is attached to the top carriage 1 such that it is pivotable about a horizontal axis and has a first implement 3 attached to the free end thereof.
  • the undercarriage 4 is fitted with a mounting and pivoting adapter 8 (hereinafter adapter), to which a second articulating boom 6 is attached such that it is pivotable about a horizontal axis 11.
  • the adapter 8 comprises a mounting part 8a attached to the undercarriage 4 and a pivoting part 8b attached to the mounting part 8a such that it is pivotable by means of hydraulic cylinders 15 at least 120°, preferably at least 180° about a vertical axis 9.
  • the pivoting part 8b and the second articulating boom 6 along with it can be pivoted at least 120°, preferably at least 180° about the vertical axis 9 of the mounting part 8a.
  • the piston rods of the cylinders 15 engage the lugs 14 in the pivoting part 8b on opposite sides of the vertical axis 9.
  • the reference number 16 denotes the space within the mounting part 8a where the cylinders 15 are able to pivot.
  • the rotational movement of the articulating boom 6 about the vertical axis 9 may be achieved by means of a toothed rim surrounding the vertical axis 9 in the pivoting part 8b and rotated by a hydraulic motor (not shown) in the mounting part via a gearwheel.
  • articulating boom refers to a boom comprising at least two boom parts connected to each other with a pivot joint 12 or 22. There may be more than two boom parts and, correspondingly, more than one pivot joint. This allows for the work machine to have a greater operating range.
  • the articulating boom may comprise an extension piece enabling the reach of the boom to be extended.
  • a second implement 7 is attached to the free end of the second articulating boom 6.
  • the implements 3 and 7 may be buckets, screening devices, crushing and screening devices, grippers such as tongs or jaws, an impact hammer, crushing jaws or a cutter crusher.
  • the implements 3 and 7 may be connected to the articulating boom by means of pivot joints 23 and 13, respectively.
  • the pivot cylinders of the implements 3 and 7 are not shown, nor are the hydraulic hoses or the pivot cylinders of the upper boom, as they are well-known equipment in work machines.
  • the hydraulic drive power required for moving the second articulating boom 6 is taken from the same motor in the work machine as the drive power required for moving the work machine or the drive power required for moving the first articulating boom 2. The same applies to the drive power input to the implements 7 of the second articulating boom 6.
  • the mounting part 8a of the adapter 8 is attached removably to the frame of the undercarriage 4 so that the second articulating boom 6 may be detached from the work machine.
  • Any known fastening solutions may be used for attaching the mounting part 8a, such as, for example, fastening lugs and hooks and/or pins engageable thereto and lockable in their sockets.
  • the undercarriage 4 has hydraulic oil quick-connect couplers to which the inlet pipes of the adapter are guided and connected when the adapter 8 is mounted to the undercarriage 4.
  • the adapter 8 has hydraulic oil quick-connect couplers to which the supply pipes connected to the hydraulic hoses of the work machine are guided and connected when the adapter 8 is mounted to the undercarriage.
  • the axis line of the vertical axis 9 of the adapter is at a distance from the undercarriage 4 in the direction of travel of the work machine.
  • the first and second articulating booms 2, 6 along with the implements 3, 7 can be moved to a mutual position in which the first implement 3 is directly above the second implement 7.
  • the implements 3, 7 are typically screening devices or crushing and screening devices.
  • the material screened by the upper screening device flows directly into the lower screening device for screening the next (smaller) fraction.
  • This enables, for example, for three different fractions, for example aggregates, to be screened in one work step and with one work machine using two different screening devices, in which case the combination replaces a separate three-fraction sieve and the machine that feeds it, as well as the machine that moves the finished fraction away from under the sieve conveyors.
  • the adapter 8 is preferably equipped with a valve housing 10 with hydraulic valves that can be remotely controlled by an electronic control unit with which the movements of the second articulating boom 6 and/or the second implement 7 can be remotely controlled.
  • the work machine is preferably equipped with a programmable processor programmed to automatically control predetermined movements of at least the second articulating boom 6 and/or the second implement 7.
  • a programmable or teachable processor is used to control some or all the paths of one or both articulating booms, productivity increases significantly.
  • the mounting part 8a of the adapter is equipped with removable support legs 17 to be pressed against the ground and extending to a desired distance from the center line of the work machine as seen in its direction of travel.
  • first and second articulating booms 2, 6 along with the implements 3, 7 are moveable to a mutual position in which the implements are side by side at a distance from one another, and that the implements are grippers.
  • the implements of the two articulating booms can be used to hold onto a long piece at two points, for example to install it in the correct position. Furthermore, in the demolition of structures, removing pieces using implements of two articulating booms could in many cases be safer and possible.
  • the undercarriage 4 is fitted with a rack 19 with which implements 20 suitable for use with the work machine can be transported to the construction site along with the work machine.
  • the implement 20 shown in Fig. 2 is an impact hammer.
  • the rack 19 can be fitted with suitable mounting parts for different implements and work equipment. There are no other requirements for the shape of the rack 19, as long as it is possible to attach implement-specific mounts to it.
  • the implements While in the rack 19, the implements are in a position from which they can be directly installed to and put into use by the rotating articulating boom 2.
  • the implement transport rack 19 proves useful, as several implements can be utilized quickly. If the articulating boom 6 has quick-connect couplers for hydraulic drive of the implement 7, the rotating articulating boom 2 may be used to bring the implement 7 of the second articulating boom 6 within its reach for replacement.
  • the boom combination according to the invention may also be used effectively in applications where large quantities of concrete and aggregate must be processed in a small space into a form where they can be utilized on site or easily transported away with typical transport equipment.
  • An example of this is breaking large pieces with an impact hammer and then crushing the resulting smaller pieces with crushing jaws or a bucket crusher.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Operation Control Of Excavators (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (10)

  1. Machine de travail autopropulsée, telle qu'un excavateur, comprenant un châssis (4) équipé de roues (5) ou de chaînes à chenille, un chariot supérieur (1) supporté sur le châssis pour une rotation de 360° autour d'un axe vertical, et une première flèche articulée (2) fixée de façon pivotante au chariot supérieur et comportant un premier outil (3) fixé à l'extrémité libre de celle-ci, et dans laquelle le châssis (4) est doté d'un adaptateur de montage et de pivotement (8) (ci-après appelé adaptateur), auquel est fixée une deuxième flèche articulée (6) comportant un deuxième outil (7) fixé à l'extrémité libre de celle-ci, et l'adaptateur (8) comprend une partie de montage (8a) fixée au châssis et une partie de pivotement (8b) fixée à la partie de montage (8a) de manière à pouvoir pivoter autour d'un axe vertical (9) et comportant la deuxième flèche articulée (6) fixée à celle-ci de manière à ce que celle-ci puisse pivoter autour d'un axe horizontal (11), caractérisée en ce que la ligne d'axe de l'axe vertical (9) de l'adaptateur se trouve à une distance du châssis (4) dans la direction de déplacement de la machine de travail et la partie de pivotement (8b) ensemble avec la flèche articulée (6) est capable de pivoter d'au moins 120° autour de l'axe vertical (9) de l'adaptateur, et en ce que la machine de travail est équipée d'un processeur programmable programmé pour commander automatiquement des déplacements prédéterminés de la deuxième flèche articulée (6) et/ou du deuxième outil (7), et/ou dans laquelle l'adaptateur (8) est équipé d'un boîtier de soupape (10) avec des soupapes hydrauliques aptes à être commandées à distance par une unité de commande électronique, et permettant de commander à distance les déplacements de la deuxième flèche articulée (6) et/ou du deuxième outil (7).
  2. Machine de travail selon la revendication 1, dans laquelle la puissance d'entraînement hydraulique pour le déplacement de la deuxième flèche articulée (6) provient du même moteur dans la machine de travail que la puissance d'entraînement nécessaire au déplacement de la machine de travail ou que la puissance d'entraînement nécessaire au déplacement de la première flèche articulée (2).
  3. Machine de travail selon la revendication 1 ou 2, dans laquelle la partie de montage (8a) de l'adaptateur (8) est fixée de façon détachable au cadre du châssis (4) pour détacher la deuxième flèche articulée (6) de la machine de travail.
  4. Machine de travail selon l'une quelconque des revendications 1 à 3, dans laquelle les première et deuxième flèches articulées (2, 6) ensemble avec les outils (3, 7) sont déplaçables vers une position mutuelle dans laquelle le premier outil (3) se trouve directement au-dessus du deuxième outil (7).
  5. Machine de travail selon l'une quelconque des revendications 1 à 4, dans laquelle les outils (3, 7) sont des dispositifs de criblage ou des dispositifs de criblage et de concassage.
  6. Machine de travail selon l'une quelconque des revendications 1 à 5, dans laquelle le châssis (4) comporte des coupleurs à raccordement rapide d'huile hydraulique, vers lesquels les tuyaux d'entrée de l'adaptateur sont guidés et raccordés lorsque l'adaptateur (8) est monté sur le châssis (4), ou en ce que l'adaptateur (8) comporte des coupleurs à raccordement rapide d'huile hydraulique vers lesquels les tuyaux d'alimentation raccordés aux flexibles hydrauliques de la machine de travail sont guidés et raccordés lorsque l'adaptateur (8) est monté sur le châssis.
  7. Machine de travail selon l'une quelconque des revendications 1 à 6, dans laquelle la partie de montage (8a) de l'adaptateur est équipée de jambes de support amovibles (17) destinées à être appuyées contre le sol et s'étendant sur une distance souhaitée de la ligne centrale de la machine de travail, vu dans sa direction de déplacement.
  8. Machine de travail selon l'une quelconque des revendications 1 à 7, dans laquelle la partie de pivotement (8b) et la deuxième flèche articulée (6) ensemble avec celle-ci peuvent pivoter d'au moins 180° autour de l'axe vertical (9) de la partie de montage (8a).
  9. Machine de travail selon l'une quelconque des revendications 1 à 3, dans laquelle les première et deuxième flèches articulées (2, 6) ensemble avec les outils (3, 7) sont déplaçables vers une position mutuelle dans laquelle les outils sont côte à côte à une distance l'un de l'autre, et en ce que les outils sont des grappins.
  10. Machine de travail selon l'une quelconque des revendications 1 à 3, dans laquelle, sur le côté opposé à l'adaptateur (8), le châssis (4) est doté d'un rack (19) permettant de transporter des outils (20) adaptés pour une utilisation avec la machine de travail vers le site de construction ensemble avec la machine de travail.
EP22830568.6A 2021-12-17 2022-10-24 Engin de chantier autopropulsé Active EP4448882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20216294A FI130509B (fi) 2021-12-17 2021-12-17 Itseliikkuva työkone
PCT/FI2022/050701 WO2023111383A1 (fr) 2021-12-17 2022-10-24 Engin de chantier autopropulsé

Publications (3)

Publication Number Publication Date
EP4448882A1 EP4448882A1 (fr) 2024-10-23
EP4448882B1 true EP4448882B1 (fr) 2025-11-19
EP4448882C0 EP4448882C0 (fr) 2025-11-19

Family

ID=84627404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22830568.6A Active EP4448882B1 (fr) 2021-12-17 2022-10-24 Engin de chantier autopropulsé

Country Status (9)

Country Link
US (1) US20250019926A1 (fr)
EP (1) EP4448882B1 (fr)
JP (1) JP2024544209A (fr)
CN (1) CN118302580A (fr)
AU (1) AU2022413993A1 (fr)
CA (1) CA3242601A1 (fr)
FI (1) FI130509B (fr)
PL (1) PL4448882T3 (fr)
WO (1) WO2023111383A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1427076A (en) * 1972-07-06 1976-03-03 Rudolf Hausherr Soehne Kg Masc Machine for driving a mine gallery or the like
JPS5980563U (ja) * 1982-11-19 1984-05-31 石川島芝浦機械株式会社 バツクホ−の作業機取付装置
JPH10273921A (ja) * 1997-01-31 1998-10-13 Komatsu Ltd 建設機械の転倒防止装置
CN114250817B (zh) * 2021-12-30 2022-11-29 徐州徐工挖掘机械有限公司 一种多功能履带式底盘及挖掘机

Also Published As

Publication number Publication date
EP4448882A1 (fr) 2024-10-23
AU2022413993A1 (en) 2024-05-16
PL4448882T3 (pl) 2026-03-09
CA3242601A1 (fr) 2023-06-22
FI130509B (fi) 2023-10-13
CN118302580A (zh) 2024-07-05
EP4448882C0 (fr) 2025-11-19
WO2023111383A1 (fr) 2023-06-22
US20250019926A1 (en) 2025-01-16
FI20216294A1 (fi) 2023-06-18
JP2024544209A (ja) 2024-11-28

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