EP2772589A1 - Engin - Google Patents

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Publication number
EP2772589A1
EP2772589A1 EP13005396.0A EP13005396A EP2772589A1 EP 2772589 A1 EP2772589 A1 EP 2772589A1 EP 13005396 A EP13005396 A EP 13005396A EP 2772589 A1 EP2772589 A1 EP 2772589A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
partition plate
hydraulic lines
pivot bearing
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.)
Granted
Application number
EP13005396.0A
Other languages
German (de)
English (en)
Other versions
EP2772589B1 (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 having work equipment comprising at least one pivot bearing and hydraulic lines, hydraulic lines passing through the pivot bearing.
  • Construction equipment such as excavators, loaders or cranes have work equipment that are designed according to their scope as excavator, loader or crane arms. They have different sections, which are arranged movable relative to each other.
  • An excavator arm includes an attachment such as a bucket and one or more sections that are rotatably supported by joints or pivot bearings relative to each other.
  • the movement of the individual sections of the work equipment here is usually carried out by means of hydraulic cylinders, which are respectively connected to the sections of the work equipment.
  • hydraulic cylinders which are respectively connected to the sections of the work equipment.
  • devices are equally conceivable in which other than hydraulic drives for moving the work equipment or its subsections are used.
  • a hydraulic cylinder and a hydraulic line may be mentioned below, but this always includes an embodiment with more than one hydraulic cylinder and a corresponding plurality of hydraulic lines.
  • a pivot bearing in the following of a pivot bearing be discussed, but also always includes an embodiment with more than one pivot bearing.
  • a supply of a pressure medium is required, which usually takes place via hydraulic lines which connect the hydraulic cylinder with a hydraulic oil source.
  • This hydraulic oil source is usually not located on the work equipment itself, but rather is located in the area of the construction machine, which has the work equipment.
  • Object of the present invention is therefore to develop a construction machine according to the invention advantageously with corresponding hydraulic lines, so that the probability of failure of the hydraulic lines is lowered.
  • each hydraulic component advantageously undergoes exactly one type of stress due to a rotational movement of the working equipment. Overlapping of several or more stresses is precluded by the separation point because hydraulic components located on a first side of the separation plate are only affected by movements of the work equipment that also take place on the first side of the separation plate. Conversely, movements of the work equipment that take place on a second side of the divider plate do not affect the hydraulic components located on the first side of the divider Separation plates are located, but only those that are located on the second side of the partition plate.
  • Each hydraulic component undergoes only a defined load and further attachment points or brackets of the hydraulic components can be dispensed with.
  • the predetermined by the separation point arrangement of the hydraulic components it is possible that the bending radii of the hydraulic hoses increases and thus their probability of failure is lowered.
  • Another advantage is that the initial assembly in the manufacture of a construction machine according to the invention is facilitated and accelerated by the clear, defined and simple separation plates.
  • a similar advantage is that the clearly defined separation points and simplified by this construction of the pivot bearing according to the invention leads to a time savings in the replacement of hydraulic lines, whereby the downtime of the device can be reduced in case of repair.
  • the at least one partition plate comprises at least one connecting portion, to which the at least two hydraulic lines are connected or connectable to each other and / or to the at least one partition plate.
  • one of the hydraulic lines can be passed through a passage in the partition plate, wherein the implementation itself represents the connecting portion of the partition plate.
  • a second hydraulic line may be connected to the first hydraulic line and fixedly connected thereto.
  • Such a connection of the different components of the work equipment advantageously allows, on the one hand, lossless transfer of pressurized hydraulic fluid between the two hydraulic lines and, on the other hand, a stabilization of the hydraulic lines with respect to forces acting on the hydraulic lines due to the movement of the work equipment.
  • a continuous hydraulic line which is not separated from any partition plate and therefore not stabilized by connection to the pivot bearing by means of the partition plate
  • bending and torsional forces are not transmitted from one hydraulic line to the other, or from a first portion of a Hydraulic line in a second section of a hydraulic line. Rather, the corresponding bending and torsional forces are introduced by means of the partition plate in the pivot bearing. Influencing the hydraulic lines is thus avoided, transfers of movements from one hydraulic line to the other, or from a first section of a hydraulic line into a second section of a hydraulic line, which can lead to increased signs of wear, to be omitted.
  • the at least two hydraulic lines are fixed or fixable in the region of the at least one partition plate relative to one another and / or relative to the at least one pivot bearing by means of the at least one partition plate.
  • Such an inventive fixing of the hydraulic lines relative to each other or relative to the other components of the work equipment advantageously allows to pressurize the hydraulic lines during movement of the working equipment independently of each other with bending and torsional forces.
  • Forces, which are introduced into a hydraulic line from one side of the pivot bearing, are absorbed by the partition plate and introduced into the pivot bearing. The forces are not transmitted to the second hydraulic line, so that there is no adverse superposition of the wear of the hydraulic lines promoting forces.
  • a construction machine in which the at least two hydraulic lines via at least one Verschraubungsabêt with the at least one partition plate and / or interconnected or connectable and that the at least two hydraulic lines relative to each other and / or relative to at least one partition plate and / or are fixed or fixable relative to the at least one pivot bearing by means of the at least one screwing section.
  • the Verschraubungsabête usually provided on hydraulic lines are advantageously used to allow the connection between the hydraulic lines, partition plate and pivot bearings. It can thus be used on standard parts and there are no separate devices necessary to realize the inventive connection.
  • the at least one partition plate comprises at least one integrally formed positioning plate, which has at least one connecting portion and is directly connected or connectable with at least half of the hydraulic lines.
  • This one-piece embodiment is particularly advantageous when more than two hydraulic lines to be passed through the pivot bearing on the partition plate. It makes it possible to determine on the constructive side from the outset which geometry should occupy the hydraulic lines to each other and to the pivot bearing. Since the partition plate, or its positioning plate is present in one piece, it is by their geometry during assembly clearly before, how to assemble the hydraulic lines in accordance with the design specifications. Namely, once the at least one connecting portion is due to the design specified on the partition plate or on the integrally executed positioning plate, so during the assembly process is no longer readily a faulty, ie a structurally so not provided connection of the hydraulic lines.
  • the at least one partition plate is made of a connection-resistant material such as a metal, a metal alloy, a fiber composite material or a plastic with comparable properties.
  • the at least one partition plate is provided in the region of the center of rotation of the at least one pivot bearing.
  • hydraulic lines are arranged in the interior of the work equipment.
  • This hose routing through the pivot bearing advantageously allows the driver to get a better overview of the equipment, as his vision is not limited by hydraulic lines running along the work equipment and therefore concern the most relevant work area for the driver.
  • due to the internal laying of the hydraulic lines the possibility of damage to the hydraulic lines by external influences, as they can be caused in construction site operation by contact with construction sites structures excluded.
  • the structure shown represents the superstructure 10 of a construction machine according to the invention.
  • the construction machine may be, for example, a wheeled excavator or a handling machine designed as a wheeled excavator, which consists of an undercarriage (not shown) supporting a chassis and the superstructure 10 hinged thereto.
  • chassis which may be designed for example as a simple wheel or chain running gear.
  • the type of chassis used is irrelevant to the invention.
  • the superstructure 10 itself essentially consists of a revolving platform, on the upper side and the right-hand side wall in the direction of travel, all modules of the superstructure 10 are arranged on standardized interfaces.
  • a pivot bearing 1 is provided in the present case, which for receiving a not shown equipment, or not used working equipment.
  • a hydraulic cylinder 9 is connected, which is designed for pivoting the pivot bearing 1.
  • the uppercar 10 further consists of the driver's workplace 20, which consists of a construction equipment substantially from a driver's cab and a control unit, not shown.
  • this driver's workplace 20 can optionally be supplemented by rigid elevations, hydraulic elevations and / or tilting devices.
  • 10 hydraulic tanks, fuel tanks and / or a rise box are conceivable on the superstructure. These can be arranged on the top or in the direction of travel right side wall of the revolving stage.
  • a drive module can likewise be provided on the upper side or on the right-hand side wall of the revolving platform in the direction of travel.
  • the drive module may be an internal combustion engine or else an electric motor with a fuel cell or accumulators.
  • ballast weight may also be attached to the top of the revolving stage.
  • the ballast weights can be exchanged across all types of equipment, as a result of which the load-bearing behavior of the machine can be changed in the simplest manner.
  • a spool bracket, which includes the entire valve assembly is also provided on the top or in the direction of travel right side wall of the turntable 10.
  • FIG. 2 shows an exploded view of the pivot bearing 1 with a separate partition plate 2.
  • the partition plate 2 has a plurality of connecting portions 3, which are designed in the illustrated embodiment as simple passages 3.
  • the partition plate 2 is inside the structure of the pivot bearing 1 mountable. It is connected via four connecting screws 4 with the pivot bearing 1.
  • the pivot bearing 1 has corresponding brackets 5 on which the partition plate 2 is storable and in which the connecting screws 4 are inserted.
  • connection geometries 7 are provided on the pivot bearing 1, via which the pivot bearing 1 with the superstructure 10, the work equipment and the hydraulic cylinder 9 is connectable.
  • the hydraulic cylinder 9 pivots the pivot bearing 1 about a vertical axis 8, whereby the entire work equipment can be pivoted about this axis 8.
  • FIG. 3 shows the partition 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 screwed sections 13.
  • the connecting screws 4 can be passed through the partition plate 2, so as to enable a tying of the partition plate 2 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 partition plate 2, can be passed through the passages 3 and can thus be fixed to the partition plate 2 by means of the fixing nuts 11.
  • second hydraulic lines 12 ' can be connected, which are located on the second side of the partition plate 2.
  • the partition plate 2 comprises in the embodiment shown a positioning plate 14 which is made in one piece. As can be seen from the drawing, it is thereby 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)
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 true EP2772589A1 (fr) 2014-09-03
EP2772589B1 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001329566A (ja) * 2000-05-25 2001-11-30 Hitachi Constr Mach Co Ltd 油圧ショベルの油圧配管
JP2004036233A (ja) * 2002-07-03 2004-02-05 Hitachi Constr Mach Co Ltd 旋回式建設機械
JP2007063871A (ja) * 2005-08-31 2007-03-15 Hitachi Constr Mach Co Ltd 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
WO2012081748A1 (fr) * 2010-12-16 2012-06-21 볼보 컨스트럭션 이큅먼트 에이비 Dispositif pour fixer un tuyau hydraulique d'une excavatrice à flèche pivotante

Family Cites Families (10)

* 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
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
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
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001329566A (ja) * 2000-05-25 2001-11-30 Hitachi Constr Mach Co Ltd 油圧ショベルの油圧配管
JP2004036233A (ja) * 2002-07-03 2004-02-05 Hitachi Constr Mach Co Ltd 旋回式建設機械
JP2007063871A (ja) * 2005-08-31 2007-03-15 Hitachi Constr Mach Co Ltd 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
WO2012081748A1 (fr) * 2010-12-16 2012-06-21 볼보 컨스트럭션 이큅먼트 에이비 Dispositif pour fixer un tuyau hydraulique d'une excavatrice à flèche pivotante
EP2653620A1 (fr) * 2010-12-16 2013-10-23 Volvo Construction Equipment AB Dispositif pour fixer un tuyau hydraulique d'une excavatrice à flèche pivotante

Also Published As

Publication number Publication date
DE102013003491A1 (de) 2014-08-28
RU2014106979A (ru) 2015-08-27
EP2772589B1 (fr) 2023-04-19
RU2576750C2 (ru) 2016-03-10
ES2949331T3 (es) 2023-09-27
US20140241841A1 (en) 2014-08-28
CN104018530A (zh) 2014-09-03

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