EP0011766A1 - Excavatrice à indication de position de l'outil de travail - Google Patents

Excavatrice à indication de position de l'outil de travail Download PDF

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Publication number
EP0011766A1
EP0011766A1 EP79104470A EP79104470A EP0011766A1 EP 0011766 A1 EP0011766 A1 EP 0011766A1 EP 79104470 A EP79104470 A EP 79104470A EP 79104470 A EP79104470 A EP 79104470A EP 0011766 A1 EP0011766 A1 EP 0011766A1
Authority
EP
European Patent Office
Prior art keywords
excavator
swivel joint
swivel
boom
tool
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
EP79104470A
Other languages
German (de)
English (en)
Other versions
EP0011766B1 (fr
Inventor
Wilfried Ing. grad. Güthoff
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing 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 Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Priority to AT79104470T priority Critical patent/ATE437T1/de
Publication of EP0011766A1 publication Critical patent/EP0011766A1/fr
Application granted granted Critical
Publication of EP0011766B1 publication Critical patent/EP0011766B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • E02F9/26—Indicating devices
    • 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
    • E02F3/301—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 with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—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

Definitions

  • the invention relates to an excavator with positional representation of its preferably parallel, z.
  • a backhoe forming work tool which is movable by means of a swivel drive around a swivel joint of a stick, which is rotatably attached to a pivoted on the excavator upper part, preferably multi-part boom with a further swivel drive.
  • a slope is used to produce and process slopes, preferably sloping slopes, with predetermined slope angles, in particular if the slope itself cannot be driven on by the excavator and cannot be seen in whole or in part by the excavator operator. This occurs, among other things, in hydraulic engineering, e.g. B. when opening channel embankments from the flat canal crown.
  • the work tool is preferably pivotally connected to the pivot joint of the handle via a pivot lever or a parallelogram of the handlebars.
  • the work tool is guided in parallel by precise dimensioning of the parallelograms, in which the handlebar, arm and work tool are included, and by articulation of the drive cylinder belonging to the arm on the boom instead of on the arm itself.
  • This considerably facilitates the production of embankments because he only has to control the boom cylinder during processing and does not need to adjust the bucket cylinder.
  • the boom can also be in several parts, but its parts are fixed in a certain position relative to one another in accordance with the desired slope.
  • a backhoe-forming work tool is based on the idea of tracking a scaled-down reproduction of all controllable moving parts of the excavator to the real movements of the original parts and the specified slope through one under the model in the field of vision of the excavator operator to display attached template.
  • the reproduction of the excavator in a scalable, trackable model means an unusual technical effort that is only justified for larger excavator units that cannot be used for work on land.
  • Such positional representations are also unusable for such excavators because they do not have sufficient correction options for different positions of the excavator relative to the formation.
  • the reproduction of the with a template means that according to the scaling down errors in controlling the model tool along the template are translated to the original tool. Precise compliance with specified angles is therefore not achievable with such position reproductions.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the task of setting up the position display so that it continuously shows the excavator operator at least the course of the movement of the working tool relative to the level of the formation or embankment to be produced and thus offers him the possibility of to bring the trajectory of the working tool into agreement with the required level or the specified course of the slope without measurements having to be carried out by auxiliary personnel.
  • the correction can be achieved by traversing the embankment that has already been made with the work tool and by adjusting the articulation until a predetermined pointer position is maintained. Any misalignment of the excavator can be taken into account using a spirit level on the adjustable pointer scale. What applies to embankments applies accordingly to a level formation, which is to be carried out, for example, on the embankment foot.
  • the excavator operator After making the corrections, the excavator operator only needs to control the excavator in such a way that the pointer on the scale maintains the position once set, in order to open a predetermined slope. Errors are not translated, but occur in the same order of magnitude as on the work tool; therefore they are easy to avoid or correct.
  • the invention provides for the swivel angle of the work tool to be reproduced on a further scale with a tracked, separate pointer.
  • the reproduction of the swivel angle is particularly simple because it only depends on the extended length of the piston rod of the bucket swivel drive fitted between the boom and the backhoe bucket.
  • the handlebar can be designed so that it not only represents the connection between the swivel joint of the working tool and the axially parallel base swivel joint on the swiveling upper part of the excavator, but actually also forms it. Looks for these cases the invention to guide the handlebar radially in the swivel of the work tool, because then the handlebar need not be variable in length; or the handlebar is fastened in the swivel and is designed to be variable in length between its attachment in the swivel of the work tool and the base swivel. This can be done in different ways. A rubber cord, a steel cable, which is guided over a deflection roller which forms the axially parallel base swivel joint, but also a telescopic linkage, is suitable for such embodiments.
  • an excavator upper part 3 is pivotally mounted on a crawler track 1 with the aid of a slewing ring 2.
  • the upper part is shown schematically, and the device parts relevant to the invention have been enlarged for better understanding.
  • the swiveling upper excavator part 3 carries the usual drive 4 and a cabin 5 for the excavator operator.
  • a boom 7 can be pivoted hydraulically around a horizontal swivel joint 8 on the upper part 3.
  • the boom is formed in two parts at 8 'and 9. With the help of bolts 10 and 11, however, the parts are locked together.
  • a third hydraulic cylinder 17 is pivotally connected to a part 18 blocked by the boom 7 at 19; its piston rod is connected at 20 to a link parallelogram, which is formed by a swing arm 21, two approximately parallel links 22 and 23 and a lever 25.
  • the lever 25 is articulated at 26 to a bucket which can be pivoted about an axis 27 by means of a hydraulic cylinder 28 and is generally designated 29.
  • this articulation is only used to transmit the pivoting movement emanating from the hydraulic cylinder 17.
  • the excavator, generally designated 40 also stands horizontally aligned on a flat surface 41, which is formed by the crown of a dam.
  • the embankment is designated 42.
  • different positions of the parallel bucket 29 are shown.
  • the parallel guidance is achieved by appropriate dimensions of the handlebar parallelograms, which are formed on the one hand by the parts 17, 21, 15 and 18 and on the other hand by the parts 21 - 25 and finally by the parts 22 and 25 and the upper part of the working tool 29.
  • the articulation of the hydraulic cylinder 17 on the boom 7 is decisive for the parallel guidance. Except for the dumping and resetting of the excavator bucket, the cylinder 17 did not need to be actuated.
  • the embankment is made exclusively with the cylinder 13.
  • the straight line through the points A, B and C at a distance H from the slope 42 is represented by the handlebar 33.
  • the handlebar allows due to his leadership at 31 and his articulation at 34 any movement of the boom or the arm 15.
  • the swivel joint 34 is provided with a device which is shown in FIG. 5 and is essentially formed from a fixed box 50 and a rotatable wheel 51 which moves in accordance with the pivoting movement of the link 33.
  • the wheel 51 has a toothing 53 on its circumference, which corresponds to the toothing 54 of a flexible toothed rack 56.
  • the end of the rack is guided at 57 ( Figure 1).
  • the rack itself forms the jacket a flexible wire 58 and is in turn surrounded by a sheath 59 and thus protected (FIG. 4).
  • a corresponding box 60 is fastened in the cab of the excavator operator.
  • the can 60 is shown schematically in FIG. 2 on a solid support 61.
  • the toothed disk 62 is seated on a pointer shaft 63, the pointer 64 of which runs over a scale which in turn is attached to a disk 65.
  • the disk 65 can be pivoted about the geometric axis e of the shaft 63 as soon as a knurled screw 67 has been loosened, which serves to fix the scale position.
  • the housing 68 of a dragonfly 69 is attached to the disc 65. With the device described, the scale on the disc 65 can be corrected in accordance with the respective deviation of the position of the excavator chassis 1 from the horizontal.
  • the nut 37 can be rotated from the cabin via a flexible toothed rack 72 of the type shown in FIGS. 4 and 5, so that the height of point C can be changed via the spindle 36 .
  • the excavator was at a distance U from the edge of the embankment.
  • part of the embankment 42 is raised with the correct inclination, in the exemplary embodiment 33.7 °.
  • the excavator operator places the backhoe bucket 29 on this finished part of the embankment and uses the handwheel 70 to adjust the point C until the pointer 64 on the scale indicates the correct embankment value.
  • the scale accordingly using the dragonfly 69.
  • the entire slope can now be opened, it only being necessary to ensure that the pointer 64 indicates the predetermined slope angle. If the excavator is moved, the setting must be made again if the distance U has changed.
  • the area to be leveled is correct when the digging movement from M to N or A to B there is no change in the pointer position and the correct value is displayed.
  • the exemplary embodiment shown in FIG. 3 differs from the exemplary embodiment according to FIG. 1 in that the extended length of the cylinder 17 is transmitted to a pointer 83 by a cylinder-fixed sleeve 80, in which a piston-fixed rod 81 is guided, and by a flexible Bowden cable 82 which runs in a sleeve 84 which is arranged in the cabin 5.
  • the pointer 83 can run in front of a scale which shows the angular position of the bucket 29 and thus the position of the teeth 87 opposite the slope 42.
  • the device in the illustrated embodiment is based on the described parallel guidance of the bucket 29, but can be designed accordingly in other excavators.
  • the exemplary embodiment according to FIG. 3 also differs from the exemplary embodiment according to FIG. 1 in that the link 33 does not form the actual connection of the swivel joint 31 with the basic swivel joint, but rather only represents it geometrically.
  • an axially parallel swivel joint 91 is arranged in a bracket 90, which serves to mount a rocker 92.
  • the rocker 92 has a length corresponding to the system of the arm 15, taking into account the length of the line 99. It therefore represents a reduced representation of the boom system.
  • the free end of the rocker 92 is provided with a swivel joint 93 which has the radial guide 31 described , which is designated 94 in the exemplary embodiment in FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
EP79104470A 1978-12-01 1979-11-13 Excavatrice à indication de position de l'outil de travail Expired EP0011766B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104470T ATE437T1 (de) 1978-12-01 1979-11-13 Bagger mit positionswiedergabe seines arbeitswerkzeuges.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2851942A DE2851942C2 (de) 1978-12-01 1978-12-01 Bagger
DE2851942 1978-12-01

Publications (2)

Publication Number Publication Date
EP0011766A1 true EP0011766A1 (fr) 1980-06-11
EP0011766B1 EP0011766B1 (fr) 1981-11-25

Family

ID=6056031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104470A Expired EP0011766B1 (fr) 1978-12-01 1979-11-13 Excavatrice à indication de position de l'outil de travail

Country Status (5)

Country Link
US (1) US4277899A (fr)
EP (1) EP0011766B1 (fr)
JP (2) JPS5914127B2 (fr)
AT (1) ATE437T1 (fr)
DE (1) DE2851942C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158792A1 (fr) * 1984-03-30 1985-10-23 Friedrich Wilh. Schwing GmbH Pelle mécanique

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH643620A5 (de) * 1979-11-28 1984-06-15 Ziegler Ag Vorrichtung zur parallelfuehrung des loeffels eines hydraulikbaggers.
DE3032821A1 (de) * 1980-08-30 1982-04-15 Friedrich Wilh. Schwing Gmbh, 4690 Herne Loeffelbagger, insbesondere mit einer parallelfuehrung des auf einen vorgegebenen schnittwinkel eingestellten loeffels sowie einer anordnung zur kontrolle der stellung der schuerfeinrichtung des baggers zur schuerfsohle
DE3134064A1 (de) * 1981-08-28 1983-03-10 Mannesmann Rexroth GmbH, 8770 Lohr Steuervorrichtung fuer einen hydraulisch betaetigten bagger
US4906161A (en) * 1987-11-30 1990-03-06 Weyer Paul P Tiltable bucket assembly
DE3802083A1 (de) * 1987-12-28 1989-07-13 Liebherr Hydraulikbagger Hydraulikbagger
JPH072736Y2 (ja) * 1988-09-30 1995-01-25 株式会社小松製作所 直動式衝撃リッパ装置
CA2045822A1 (fr) * 1991-06-27 1992-12-28 Sakari Pinomaki Levage d'eperon
US5145313A (en) * 1991-06-28 1992-09-08 Weyer Paul P Quick disconnect bucket actuator
US5242258A (en) * 1991-06-28 1993-09-07 Weyer Paul P Quick disconnect bucket actuator
DE4498218T1 (de) * 1993-10-27 1996-12-05 Komatsu Mfg Co Ltd Arbeitsmaschine eines hydraulischen Tiefbaggers
WO1995015420A1 (fr) * 1993-11-30 1995-06-08 Komatsu Ltd. Dispositif de commande d'excavation lineaire pour pelle hydraulique
KR960024253A (ko) * 1994-12-23 1996-07-20 김무 산업용 작업기기의 회전체변위 측정장치
US5592762A (en) * 1995-08-16 1997-01-14 Deere & Company Excavator bucket linkage
US5611656C1 (en) * 1995-08-31 2001-10-16 Caterpillar Inc Linkage arrangement for a work implement
DE19616056C1 (de) * 1996-04-23 1997-07-03 H Aug Schmidt Transportanlagen Steuerung für einen Eimerkettenbagger
AU773522C (en) * 1999-09-09 2004-12-02 Garry Roger Steedman Vehicular arm assembly
SE537181C2 (sv) * 2008-10-21 2015-02-24 Svab Hydraulik Ab Styrsystem samt förfarande för en tiltrotator
JP2014025313A (ja) * 2012-07-30 2014-02-06 Kubota Corp フロントローダ
US9617709B2 (en) * 2015-02-02 2017-04-11 Komatsu Ltd. Work vehicle and method of controlling work vehicle
JP7030504B2 (ja) * 2017-12-22 2022-03-07 株式会社クボタ 作業機

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347398A (en) * 1966-01-28 1967-10-17 Edward H Smith Backhoe combination
US3443705A (en) * 1967-08-09 1969-05-13 Robert J Buttram Back hoe
DE1800045A1 (de) * 1968-04-18 1970-04-16 Schwing Friedrich Wilh Schuerfeinrichtung fuer einen Bagger
DE2012822A1 (de) * 1969-03-19 1970-10-15 Hopper, Inc., Bakersfield, Calif. (V.St.A.) Steuervorrichtung für einen Tieflöffelbagger oder Planiermaschine
US3900073A (en) * 1974-10-15 1975-08-19 William Norman Crum Earth working device with predetermined grade indicating assembly
GB1452500A (en) * 1973-12-21 1976-10-13 Priestman Bros Ltd Working or load lifting machine

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
CA491649A (fr) * 1953-03-31 Harald Liljeqvist Alf Machines a creuser des fosses
CA705034A (en) * 1965-03-02 A. Fisher George Bucket position indicator
US2704047A (en) * 1953-03-05 1955-03-15 Lushenko Gordon Indicating mechanism for ram operated agricultural tool
DE1195681B (de) * 1955-03-23 1965-06-24 Siemens Ag Vorrichtung zur Anzeige der Stellung zweier gegeneinander schwenkbarer Geraeteteile von Grossfoerdergeraeten, wie Bagger, Absetzer od. dgl.
US3349747A (en) * 1965-05-06 1967-10-31 Deere & Co Indicator for combine header or the like
SU374421A1 (ru) * 1970-12-14 1973-03-20 Устройство для стабилизации положения копирного механизма землеройных машин циклического
US3724278A (en) * 1971-12-16 1973-04-03 Ametek Inc Backhoe depth gauge
US4028822A (en) * 1976-04-20 1977-06-14 Laserplane Corporation Manually operable depth control for trenchers
US4050171A (en) * 1976-05-12 1977-09-27 Laserplane Corporation Depth control for endless chain type trencher
DE7639849U1 (de) * 1976-12-20 1977-06-30 Observator B.V., Rotterdam-Hoogvliet (Niederlande) Sichtanzeiger fuer im unterwasserbetrieb arbeitende loeffelbagger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347398A (en) * 1966-01-28 1967-10-17 Edward H Smith Backhoe combination
US3443705A (en) * 1967-08-09 1969-05-13 Robert J Buttram Back hoe
DE1800045A1 (de) * 1968-04-18 1970-04-16 Schwing Friedrich Wilh Schuerfeinrichtung fuer einen Bagger
DE2012822A1 (de) * 1969-03-19 1970-10-15 Hopper, Inc., Bakersfield, Calif. (V.St.A.) Steuervorrichtung für einen Tieflöffelbagger oder Planiermaschine
GB1452500A (en) * 1973-12-21 1976-10-13 Priestman Bros Ltd Working or load lifting machine
US3900073A (en) * 1974-10-15 1975-08-19 William Norman Crum Earth working device with predetermined grade indicating assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BAUMASCHINE UND BAUTECHNIK, Jahrgang 16, Januar 1969, Heft 1, Wiesbaden, DE "Koordinaten-Messgerat fur die Grabtiefe von Baggern". Seiten 32, 33. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158792A1 (fr) * 1984-03-30 1985-10-23 Friedrich Wilh. Schwing GmbH Pelle mécanique

Also Published As

Publication number Publication date
US4277899A (en) 1981-07-14
JPS5948530A (ja) 1984-03-19
JPS5914127B2 (ja) 1984-04-03
EP0011766B1 (fr) 1981-11-25
DE2851942A1 (de) 1980-06-04
DE2851942C2 (de) 1983-08-18
JPS5925053B2 (ja) 1984-06-14
JPS55108539A (en) 1980-08-20
ATE437T1 (de) 1981-12-15

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