EP2772589B1 - Engin - Google Patents

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Publication number
EP2772589B1
EP2772589B1 EP13005396.0A EP13005396A EP2772589B1 EP 2772589 B1 EP2772589 B1 EP 2772589B1 EP 13005396 A EP13005396 A EP 13005396A EP 2772589 B1 EP2772589 B1 EP 2772589B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
hydraulic lines
pivot bearing
separator plate
construction machine
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
EP13005396.0A
Other languages
German (de)
English (en)
Other versions
EP2772589A1 (fr
Inventor
Daniel Veloso
Stefan Schott
Michael Reuthlinger
Dirk Asam
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of EP2772589A1 publication Critical patent/EP2772589A1/fr
Application granted granted Critical
Publication of EP2772589B1 publication Critical patent/EP2772589B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • 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
    • E02F3/3695—Arrangements for connecting dipper-arms to loaders or graders
    • 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
    • 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
    • E02F9/2275—Hoses and supports therefor and protection therefor

Definitions

  • the present invention relates to a construction machine with working equipment that has at least one pivot bearing and hydraulic lines, with hydraulic lines running through the pivot bearing.
  • Construction machines such as excavators, loaders or cranes have working equipment that is designed as excavator, loader or crane arms according to their area of application. They have different subsections that are arranged to be movable relative to one another.
  • An excavator arm comprises an attachment, such as a shovel, and one or more sections that are rotatably mounted relative to one another via joints or pivot bearings.
  • the individual sections of the working equipment are usually moved by means of hydraulic cylinders, which are correspondingly connected to the sections of the working equipment.
  • hydraulic cylinders which are correspondingly connected to the sections of the working equipment.
  • drives other than hydraulic drives are used to move the working equipment or its sections.
  • one hydraulic cylinder and one hydraulic line can be referred to below, but this always includes an embodiment with more than one hydraulic cylinder and a corresponding plurality of hydraulic lines.
  • a pivot bearing can also be referred to below, but this also always includes an embodiment with more than one pivot bearing.
  • the object of the present invention is therefore to advantageously further develop a construction machine according to the invention with corresponding hydraulic lines, so that the probability of failure of the hydraulic lines is reduced.
  • a device having the features of claim 1, according to which a construction machine such as an excavator, loader or crane is provided with at least one hydraulic working equipment, such as an excavator, loader or crane arm, the working equipment having at least one Pivot bearing comprises at least one separating plate provided on the pivot bearing, at least one first hydraulic line and at least one second hydraulic line, the at least one separating plate being connected or connectable to the at least one pivot bearing and the hydraulic lines.
  • the WO-A-2012/081748 discloses a construction machine with the pre-characterizing features of claim 1.
  • each hydraulic component advantageously experiences exactly one type of stress due to a rotary movement of the working equipment.
  • a superimposition of different or more stresses is excluded by the separation point, since hydraulic components, which are located on a first side of the separating plate, are only influenced by movements of the working equipment, which also take place on the first side of the separating plate.
  • movements of the work equipment that take place on a second side of the divider plate do not affect the hydraulic components that are on the first side of the partition plates are located, but only those that are on the second side of the partition plate.
  • Each hydraulic component is only subject to a defined load and there is no need for additional attachment points or brackets for the hydraulic components.
  • the arrangement of the hydraulic components specified by the point of separation makes it possible to increase the bending radii of the hydraulic hoses and thus reduce their probability of failure.
  • a further advantage is that the initial assembly in the production of a construction machine according to the invention is facilitated and accelerated by the clear, defined and simple partition plates.
  • a similar advantage lies in the fact that the clearly defined separation points and the simplified design of the swivel bearing according to the invention save time when replacing hydraulic lines, which reduces the downtime of the device in the event of repairs.
  • the at least one separating plate comprises at least one connecting section, at which the at least two hydraulic lines are connected to one another and to the at least one separating plate.
  • one of the hydraulic lines can be routed through a passage in the separating plate, with the passage itself representing the connecting section of the separating plate.
  • a second hydraulic line can be connected to the first hydraulic line and firmly connected to it.
  • the at least two hydraulic lines are connected to one another and to the at least one Partition plate positively and/or non-positively and/or firmly connected.
  • Such a connection of the different components of the working equipment advantageously enables, on the one hand, the loss-free transmission of pressurized hydraulic fluid between the two hydraulic lines and, on the other hand, the hydraulic lines are stabilized in relation to forces which act on the hydraulic lines due to the movement of the working equipment.
  • a continuous hydraulic line which is not separated by any dividing plate and is therefore not stabilized by being connected to the pivot bearing by means of the dividing plate
  • bending and torsional forces are not transmitted from one hydraulic line to the other, or from a first section of a hydraulic line Hydraulic line in a second section of a hydraulic line. Rather, the corresponding bending and torsional forces are introduced into the pivot bearing by means of the separating plate. Influencing of the hydraulic lines is avoided in this way, transmission of movements from one hydraulic line to the other, or from a first section of a hydraulic line to a second section of a hydraulic line, which can lead to increased signs of wear, is prevented.
  • the at least two hydraulic lines are fixed in the area of the at least one separating plate relative to one another and relative to the at least one pivot bearing by means of the at least one separating plate.
  • Such an inventive fixing of the hydraulic lines relative to each other or relative to the other components of the working equipment advantageously allows bending and torsional forces to be applied to the hydraulic lines independently of one another while the working equipment is being moved.
  • Forces introduced into a hydraulic line from one side of the slewing bearing are absorbed by the separator plate and introduced into the slewing bearing. The forces are not transmitted to the second hydraulic line, so that there is no disadvantageous superimposition of forces that promote wear on the hydraulic lines.
  • the at least two hydraulic lines are connected to the at least one separator plate and to one another via at least one screw section, and the at least two hydraulic lines are fixed relative to one another and relative to the at least one separator plate and relative to the at least one pivot bearing by means of the at least one screw section.
  • the screw connection sections that are usually provided on hydraulic lines are advantageously used to enable the connection between hydraulic lines, separating plate and swivel bearing. Standard parts can thus be used and no separate devices are required to implement the connection according to the invention.
  • the at least one separating plate comprises at least one positioning plate made in one piece, which has at least one connecting section and is directly connected to at least half of the hydraulic lines.
  • This one-piece embodiment is particularly advantageous when more than two hydraulic lines are to be routed through the pivot bearing over the partition plate.
  • On the design side it makes it possible to determine from the outset which geometry the hydraulic lines should have in relation to one another and to the swivel bearing. Since the separating plate or its positioning plate is in one piece, its geometry during assembly clearly specifies how the hydraulic lines are to be in accordance with the design specifications are to be assembled. If the at least one connecting section is due to the design on the partition plate or on its one-piece positioning plate, a faulty connection of the hydraulic lines, ie a connection that is not designed in this way, can no longer easily occur during the assembly process.
  • the at least one separating plate prefferably be provided from a connection-rigid material such as a metal, a metal alloy, a fiber composite material or a plastic with comparable properties.
  • the at least one separating plate prefferably be provided in the region of the center of rotation of the at least one pivot bearing.
  • hydraulic lines it is conceivable for the hydraulic lines to be arranged in the interior area of the working equipment.
  • This routing of the hose through the swivel bearing advantageously enables the driver to have a better overview of the equipment, since his view is not restricted by hydraulic lines running along the working equipment run and therefore affect the most relevant work area for the driver.
  • the hydraulic lines are laid on the inside, the possibility of damage to the hydraulic lines from external influences, such as can be caused by contact with construction site structures during construction site operation, is ruled out.
  • the structure shown represents the superstructure 10 of a construction machine according to the invention.
  • the construction machine can be, for example, a mobile excavator or a handling device designed as a mobile excavator, which consists of an undercarriage (not shown) carrying a chassis and the uppercarriage 10 articulated thereon.
  • the undercarriage carries an undercarriage which can be designed, for example, as a simple wheeled undercarriage or as a tracked undercarriage.
  • the type of chassis used is irrelevant for the invention.
  • the superstructure 10 itself consists essentially of a revolving platform, on the top of which and on the side wall on the right in the direction of travel all modules of the superstructure 10 are arranged at standardized interfaces.
  • a pivot bearing 1 is provided in the present case, which is not shown for receiving equipment, or not shown work equipment is used.
  • a hydraulic cylinder 9 is connected to the pivot bearing 1 and is designed for pivoting the pivot bearing 1 .
  • the superstructure 10 also consists of the driver's workplace 20, which essentially consists of a driver's cab and a control unit (not shown) in the case of construction equipment.
  • this driver's workplace 20 can optionally be supplemented by rigid elevations, hydraulic elevations and/or tilting devices. Hydraulic tanks, fuel tanks and/or a boarding box are also conceivable on the superstructure 10 . These can be arranged on the top or on the side wall of the revolving platform on the right in the direction of travel.
  • a drive module can also be provided on the upper side or on the side wall of the revolving platform that is on the right in the direction of travel.
  • the drive module can be an internal combustion engine or an electric motor with a fuel cell or accumulators.
  • ballast weight can also be attached to the top of the revolving platform.
  • the ballast weights By standardizing the width and height of the superstructure, provision can be made for the ballast weights to be interchangeable across device types, as a result of which the carrying load behavior of the machine can be changed in the simplest way.
  • a control slide console which contains the entire valve arrangement, is also provided on the upper side or on the side wall of the revolving platform 10 on the right in the direction of travel.
  • FIG. 2 shows an exploded view of the pivot bearing 1 with a separating plate 2 separated from it.
  • the partition plate 2 is inside the structure of the pivot bearing 1 mountable. For this purpose, it is connected to the pivot bearing 1 via four connecting screws 4 .
  • the pivot bearing 1 has corresponding brackets 5 on which the partition plate 2 can be mounted and into which the connecting screws 4 can be inserted.
  • connection geometries 7 are provided on the pivot bearing 1, via which the pivot bearing 1 can be connected to the superstructure 10, the working equipment and the hydraulic cylinder 9.
  • the hydraulic cylinder 9 pivots the pivot bearing 1 about a vertical axis 8, as a result of which the entire working equipment can be pivoted about this axis 8.
  • figure 3 shows the separating plate 2 with recesses 6 and bushings 3 and with a plurality of fixing screws 11 and a plurality of first hydraulic lines 12 and a plurality of second hydraulic lines 12' in an exploded view.
  • the first hydraulic lines 12 have screw sections 13 .
  • the connecting screws 4 can be passed through the separating plate 2 through the recesses 6 in order to enable the separating plate 2 to be connected to the brackets 5 and thus to the pivot bearing 1 .
  • the first hydraulic lines 12 which are located on the first side of the separating plate 2 , can be passed through the passages 3 and can thus be fixed to the separating plate 2 by means of the fixing nuts 11 . Further, second hydraulic lines 12 ′, which are located on the second side of the separating plate 2 , can be connected to the screw connection sections 13 of the first hydraulic lines 12 .
  • the separating plate 2 comprises a positioning plate 14 which is designed in one piece. As can be seen from the drawing, this makes it possible to fix the individual hydraulic lines 12, 12' in a particularly simple manner relative to one another and relative to the separating plate 2 and thus also to the pivot bearing 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Hydraulic Motors (AREA)

Claims (4)

  1. Engin, tel qu'une excavatrice, chargeuse ou grue, comportant au moins un équipement de travail hydraulique, tel qu'un bras d'excavatrice, de chargeuse ou de grue, l'équipement de travail comprenant au moins un palier de pivotement (1) pouvant pivoter, comportant au moins une plaque de séparation (2) prévue sur le palier de pivotement (1), au moins une première conduite hydraulique (12) et au moins une seconde conduite hydraulique (12'), l'au moins une plaque de séparation (2) étant ou pouvant être reliée à l'au moins un palier de pivotement (1) et aux conduites hydrauliques (12, 12') et l'au moins une plaque de séparation (2) comprenant au moins une partie de liaison (3), sur laquelle les au moins deux conduites hydrauliques (12, 12') sont reliées à l'au moins une plaque de séparation (2),
    caractérisé en ce que
    les au moins deux conduites hydrauliques (12, 12') sont reliées, par le biais d'au moins une partie de raccord fileté (13), à l'au moins une plaque de séparation (2) et l'une à l'autre et en ce que les au moins deux conduites hydrauliques (12, 12') sont fixées l'une par rapport à l'autre et par rapport à l'au moins une plaque de séparation (2) et par rapport à l'au moins un palier de pivotement (1) au moyen de l'au moins une partie de raccord fileté (13), les au moins deux conduites hydrauliques (12, 12') étant reliées l'une à l'autre et à l'au moins une plaque de séparation (2) par complémentarité de forme et/ou par friction et/ou par coopération de matières, l'au moins une plaque de séparation (2) comprenant au moins une plaque de positionnement (14) exécutée en une seule pièce, qui présente l'au moins une partie de liaison (3) et qui est directement reliée à au moins la moitié des conduites hydrauliques (12, 12'), les au moins deux conduites hydrauliques (12, 12') étant fixées l'une par rapport à l'autre ainsi que par rapport à l'au moins une plaque de séparation (2) et ainsi par rapport à l'au moins un palier de pivotement (1) au moyen de la plaque de positionnement (14) et l'au moins un palier de pivotement présentant des consoles (5), par le biais desquelles l'au moins une plaque de séparation (2) est montée à l'intérieur de la structure de l'au moins un palier de pivotement (1) au moyen de boulons d'assemblage (4).
  2. Engin selon la revendication 1, caractérisé en ce que l'au moins une plaque de séparation (2) est produite à partir d'un matériau rigide à la torsion tel qu'un métal, un alliage métallique, un matériau composite renforcé par des fibres ou une matière plastique ayant des propriétés comparables.
  3. Engin selon l'une des revendications précédentes, caractérisé en ce que l'au moins une plaque de séparation (2) est prévue dans la zone du centre de rotation de l'au moins un palier de pivotement (1).
  4. Engin selon l'une des revendications précédentes, caractérisé en ce que les conduites hydrauliques (12, 12') sont disposées à l'intérieur de l'équipement de travail.
EP13005396.0A 2013-02-28 2013-11-15 Engin Active EP2772589B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013003491.4A DE102013003491A1 (de) 2013-02-28 2013-02-28 Baumaschine

Publications (2)

Publication Number Publication Date
EP2772589A1 EP2772589A1 (fr) 2014-09-03
EP2772589B1 true EP2772589B1 (fr) 2023-04-19

Family

ID=49674115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13005396.0A Active EP2772589B1 (fr) 2013-02-28 2013-11-15 Engin

Country Status (6)

Country Link
US (1) US20140241841A1 (fr)
EP (1) EP2772589B1 (fr)
CN (1) CN104018530A (fr)
DE (1) DE102013003491A1 (fr)
ES (1) ES2949331T3 (fr)
RU (1) RU2576750C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6451242B2 (ja) * 2014-11-17 2019-01-16 コベルコ建機株式会社 建設機械
JP6819481B2 (ja) * 2017-06-21 2021-01-27 コベルコ建機株式会社 建設機械の配策物取付ハンガ
JP7016774B2 (ja) * 2018-06-19 2022-02-07 ヤンマーパワーテクノロジー株式会社 作業機械の電装品及び油圧ホースの設置構造
CN113651254B (zh) * 2021-08-26 2023-05-05 江苏徐工工程机械研究院有限公司 作业臂支腿连接模块和工程机械

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1531835A1 (de) * 1966-11-29 1970-01-22 Erich Birgmayer Kupplung zum Anschliessen der zu den Hubzylindern eines abstellbaren Frontladers fuehrenden Hydraulikleitung an die Hydraulikanlage eines Ackerschleppers
SU618493A1 (ru) * 1972-07-07 1978-08-05 Предприятие П/Я А-3590 Механизм креплени навесного оборудовани погрузчика-экскаватора
GB1599403A (en) * 1977-07-12 1981-09-30 Massey Ferguson Perkins Ltd Booms for lifting machines particularly backhoes
US4958981A (en) * 1988-12-20 1990-09-25 Masatoshi Uchihashi Attachment connector assembly for hydraulic shovel type excavator
SU1737073A1 (ru) * 1990-06-11 1992-05-30 Всесоюзный Научно-Исследовательский Институт Землеройного Машиностроения Поворотна колонна экскаватора-каналоочистител
JP2001329566A (ja) * 2000-05-25 2001-11-30 Hitachi Constr Mach Co Ltd 油圧ショベルの油圧配管
JP4678705B2 (ja) * 2000-11-29 2011-04-27 株式会社小松製作所 油圧駆動式作業機
JP4005428B2 (ja) * 2002-07-03 2007-11-07 日立建機株式会社 旋回式建設機械
JP3822155B2 (ja) * 2002-09-24 2006-09-13 株式会社クボタ 旋回作業機の掘削装置
JP4145184B2 (ja) * 2003-04-02 2008-09-03 株式会社小松製作所 管下掘削装置
JP4664156B2 (ja) * 2005-08-31 2011-04-06 日立建機株式会社 建設機械
US20090084454A1 (en) * 2007-10-01 2009-04-02 Volvo Construction Equipment Holding Sweden Ab. Apparatus for fixing hydraulic pipes for zero tail swing excavator
KR20090033606A (ko) * 2007-10-01 2009-04-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 소 선회식 굴삭기의 옵션배관 고정장치
AT506554B1 (de) * 2008-03-20 2011-11-15 Alois Ing Wimmer Kupplungsvorrichtung mit einer einrichtung zum automatischen verbinden von energieleitungen
US20130256468A1 (en) * 2010-12-16 2013-10-03 Volvo Construction Equipment Ab Device for fixing hydraulic pipe of boom swing type excavator

Also Published As

Publication number Publication date
CN104018530A (zh) 2014-09-03
US20140241841A1 (en) 2014-08-28
DE102013003491A1 (de) 2014-08-28
RU2576750C2 (ru) 2016-03-10
RU2014106979A (ru) 2015-08-27
ES2949331T3 (es) 2023-09-27
EP2772589A1 (fr) 2014-09-03

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