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WO1998024983A1 - Procede et agencement d'enlevement et de chargement de terre - Google Patents

Procede et agencement d'enlevement et de chargement de terre Download PDF

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Publication number
WO1998024983A1
WO1998024983A1 PCT/PL1997/000005 PL9700005W WO9824983A1 WO 1998024983 A1 WO1998024983 A1 WO 1998024983A1 PL 9700005 W PL9700005 W PL 9700005W WO 9824983 A1 WO9824983 A1 WO 9824983A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
conveyor
bucket
undercarriage
buckets
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.)
Ceased
Application number
PCT/PL1997/000005
Other languages
English (en)
Inventor
Witold Kalisiak
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP97914680A priority Critical patent/EP0914525B1/fr
Priority to DE69727383T priority patent/DE69727383D1/de
Publication of WO1998024983A1 publication Critical patent/WO1998024983A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/248—Cleaning the wheels or emptying the digging elements mounted on the wheels, e.g. in combination with spoil removing equipment
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger

Definitions

  • the method of earth separation and loading and the arrangement for application of this method may be utilised in various types of excavators and loaders, picking up crushed material, store in dumps and transferring it to means of transport of various types.
  • Known face-shovel excavators separate the output from the subsoil with an upward motion of the bucket and therefore lumps of soil, separated with bucket blades or teeth, drop inside the bucket. Emptying the bucket is accomplished in various ways.
  • the bucket In single bucket excavators, the bucket, after filling, is lifted upwards and then the superstructure of the machine, together with the bucket, rotates in order to place the bucket above the designated means of transport. After opening the bottom flap of the bucket, the output is discharged, usually into an open body of a road vehicle. After another rotation of the excavator superstructure and lowering the bucket, the latter begins to move upwards, separating another portion of soil.
  • multi-bucket excavators are mounted on the bucket wheel or circular chain and, after separation of appropriate amount of soil, lift the output to a considerable height and due to that, the output pours off onto continuous duty belt conveyor situated nearby, which subsequently transfers the output to the means of transport or to a dump.
  • Single-bucket undershot excavators are mainly used to dig soil below the level, on which the excavator moves. In such case they also cut soil in an upward direction. These excavators are also used for cutting soil above the level, on which the excavator moves. Contrary to the previous cases the cutting is performed with an downward motion, whilst in the last part of the cycle, the bucket performs a scraping turn whereby it is filled with output. After lifting the bucket and rotating the excavator superstructure, the output is discharged onto the means of transport, due to another rotation of the bucket in relation to the extension arm.
  • the said single-bucket excavators feature two major flaws:
  • Multi-bucket excavators have the following flaws:
  • the purpose of the invention is to develop a method of soil cutting at a substantially lower energy consumption and different operating technique.
  • the cutting method allows also to increase the cutting speed, what additionally results in increased productivity.
  • the method of soil separation consists in separating the soil by means of several, preferably three buckets, mounted on a bucket wheel, whilst the separation of earth from subsoil is accomplished by downward motion and the buckets move consecutively separated portions of the output along the slip plate to a height, allowing - due to gravity and centrifugal force - to pour subsequent portions onto a & inclined first continuous duty conveyor , mounted with the bucket wheel on the rotary part of the excavator, whilst the output is transferred from the first conveyor to the second continuous duty conveyor, mounted independently and rotationally on the undercarriage, and subsequently this second conveyor conveys the output to any means of road or rail transport or to other continuous duty conveyors, independent from the excavator or to a dump.
  • the arrangement for the application of the method consist* of an undercarriage with a running gear and a rotary platform on this undercarriage, on which an extension arm with a bucket wheel and slip plate are mounted on an articulated joint and an inclined continuous duty conveyor and, additionally, an independent rotary second continuous duty conveyor is mounted, whilst each bucket on the bucket wheel is provided with cutting blades, two side walls and a plate, appropria- tely situated on the bucket wheel side, enabling the output to be slid along it to the first conveyor after moving this output along the slip plate to an appropriate height.
  • extension arm to which the bucket wheel is mounted, has a variable extension due to a hydraulic cylinder moving the front part of the arm with bucket wheel in relation to the rear part of the arm mounted with a universal joint to the rotary platform.
  • a variation of the arrangement is fitted with buckets, each of which is provided with cutting blades, two side walls, internal plate situated at the centre of the bucket wheel and a swinging outer wall, opened with a cam or a buffer, allowing the discharge of the output onto a conveyor after the bucket reaches an appropriate height.
  • the variation of the arrangement for cutting earth below the level on which the arrangement is moving is provided with a bucket wheel with several, preferably three buckets, located on an arm while the soil is cut with a downward motion of the buckets and the output is slip upwards along the slip to the discharge height and then conveyed by means of conveyors to means of transport or dump.
  • the method of separation and loading earth onto means of transport and the arrangement for the application of this method - an excavator are shown on an example application in the figures, where in fig.l a side view of the excavator is shown, in fig.2 - top view of the excavator, in fig.3 platform turning gear and loading conveyor turning gear are shown and in fig. - the top view of both said turning gears.
  • the excavator consists of an undercarriage 1 e.g. on crawlers with a running gear and a turning gear and a rotary platform 2 with supporting structure _3.
  • An extension arm 4 is mounted with an articulated joint to the front of the rotary platform, bearings j3 of bucket wheel j> with a number, preferably three buckets are located at the front of them with cutting blades _ ⁇ , two side walls j) and plate JO situated at the centre of the bucket wheel.
  • the bucket has no wall on the outside.
  • Slip plate J is rotationally mounted to the bucket wheel shaft, by means of arms _12. The slip plate is secured against rotation by means of a screw joint with the extension arm.
  • the slip plate consists of slip ⁇ 3 located on the circumference of the bucket wheel and two side plates. The inside diameter of the slip is marginally larger than the outside diameter of the bucket wheel.
  • the slip has a constant cross section, from the bottom to a chute JL4, whereas above the chute, it has a hole, slightly wider than buckets.
  • Below the chute belt conveyor I begins with ribbed belt jL5.
  • the bottom end of the supporting structure of the conveyor is mounted with an articulated joint to the slip plate and its top end mounted slidingly on rollers to supporting structure _3.
  • Extension arm 4 is inclined by means of hydraulic cylinder 16 allowing lifting and lowering the bucket wheel. Apart from that this extension arm has its front part sliding in the rear part what allows for the movement of the bucket wheel, within definite limits, forwards and backwards.
  • Hydraulic cylinder 21 allows inclination of the loading conveyor in the vertical plane, according to the height of any means of transport, independent from the excavator. Turning gear of the excavator is shown in fig.3 and 4. This gear oonsists of hydraulic cylinder J22, vertical inner sleeve , 23, linking the undercarriage supporting structure with the rotary structure of the loading conveyor above rotary bearing jL9 and of appropriate articulated joints. Hydraulic cylinder .22 is connected with one joint to the undercarriage supporting structure and with the other end to the articulated joint of inner sleeve J23. The movement of hydraulic cylinder piston rod causes the rotary structure of loading conveyor to turn in one or other direction, within determined limits.
  • hydraulic cylinder 24 is joined at one end, by means of an articulated joint, with the undercarriage supporting structure 1 and at the other end, also by means of an articulated oint, with rotary platform 2 what allows platform 2 to rotate, within definite limits in relation to undercarriage 1.
  • an internal combustion engine is installed, driving all excavator mechanisms by means of an oil pump. This engine performs also the role of an additional counterweight for extension arm 4 and bucket wheel €>.
  • Controls are located in cab .25, omitted for clarity sake from fig.i.
  • the excavator is operated by two people. One operator controls the bucket wheel and oonveyor I with ribbed belt; the other one controls the loading of independent means of transport.
  • the functioning of the excavator where the method of earth separation and loading on means of transport has been applied, is as follows.
  • the operator of loading devices sets the outlet of loading conveyor O horizontally, above the open body of a vehicle, by means of hydraulic cylinder 22, and the outlet height by means of hydraulic cylinder jil, and then starts the loading conveyor.
  • the other operator starts the turning gear of bucket wheel j> and, as necessary, the thrust gear by means of hydraulic cylinder JJT.
  • the separation of earth commences and a subsequent bucket is filled by the earth moving downwards.
  • the cut begins according to the slope height, approximately in the position, where in fig.i is the top left bucket.
  • the slip plate ⁇ 1 In the position, where in the figure is the bottom bucket, the slip plate ⁇ 1 begins to close the outside surface of the bucket, whilst the inner plate jLO pushes before it the output contained in the bucket.
  • the output in the bucket slides on the slip 13 ⁇ to the height of chute 14.
  • the discharge of the loosened output from the bucket commences from the position, where the top right bucket is in fig.i.
  • the output slides along the chute and above it onto belt conveyor I with ribbet belt, which subsequently feeds it to loading conveyor jJO and the letter discharges the output onto any means of transport.
  • Earth separation is accomplished as platform 2 rotates from one extreme position to another, by means of hydraulic cylinder 2A .
  • the operator has here at his disposal a thrust mecha- chanism, which controls the thickness of the layer cut.
  • the excavator without the use of the running gear, cut subsequent layers until the total movement of the thrust mechanism is exhausted, where the bucket wheel is reversed by means of hydraulic cylinder Vl_ and the excavator moves forward by means of the running gear of the undercarriage.
  • the method of earth separation and loading onto means of transport has a number of outstanding advantages in relation to methods commonly used.
  • First of all cutting earth takes place with a cut layer maximally relieved and thereby with very low friction of earth cut and with the utilisation of horizontal pressure, repelling extreme layers in the vertical zone of the slope. In some cases, with dry and loose soil, serious loss of internal friction may occur. Then so called fluidisation of crushed material occurs. This material flows down the slope /known self creep of trench walls/ and it is enough, without moving the excavator, to pump the material, like pumping liquids, at an extremely low energy consumption.
  • Another advantage of the method according to the invention is the maximum utilisation of engine power for cutting soil.
  • the stability of the excavator is thereby improved, as the overturning moment from the extension arm, buckets and output is balanced, by large, by the loading conveyor located on the other side of the undercarriage. Additionally, a substantial moment from the cutting reaction is replaced by a substantially smaller, and at the same time, stabilising moment from cutting reaction /due to opposite direction of the reaction/.
  • the cutting system according to the invention allows reduction in energy consumption for soil separation, substantial reduction in bucket wheel weight and in consequence counterweight and supporting structure weights.
  • An additional advantage of soil separation method is the use of thrust mechanism, allowing excavator operation when cutting non-homogeneous soil, containing considerable amount of rock what practically prevents the use of multi-bucket excavators. Elimination of full rotation of excavators simplifies to a large extent the turning gear. In such case, a multi-step mechanical gear, driven by a simple hydrulic motor or a slow speed hydraulic motor, becomes superfluous. It is enough to use a simple hydraulc cylider in lieu of such devices. Complex rotary columns, feeding oil under prssure to the running gear of both crawlers of the undercarriage are avoided, whilst each crawler must have the capability to run in both directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention permet d'enlever la terre du sous-sol avec une moindre résistance au creusement et plus rapidement. Par ailleurs, le chargement continu du matériau excavé sur des moyens de transport augmente sensiblement la productivité du dispositif de l'invention par rapport à d'autres excavatrices. Cet agencement d'excavatrice comprend un train de roulement (1) et une plate-forme pivotante (2) sur laquelle on a monté un bras d'extension (4) doté d'une roue-pelle (6), pourvue de préférence de trois godets (7), lesquels creusent la terre vers le bas puis déversent la matière excavée sur une plaque de glissement (11), en direction d'une goulotte (14), à partir de laquelle cette matière est transférée sur une première bande de transport continue (15), montée également sur la plate-forme rotative (2), puis sur une seconde bande de transport continue (20), montée de façon indépendante et rotative sur le train de roulement (1) et destinée à charger la matière excavée sur des moyens de transport indépendants. On peut appliquer cette invention à du matériel de chargement et de déchargement de matériaux broyés.
PCT/PL1997/000005 1996-12-02 1997-04-03 Procede et agencement d'enlevement et de chargement de terre Ceased WO1998024983A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97914680A EP0914525B1 (fr) 1996-12-02 1997-04-03 Procede et agencement d'enlevement et de chargement de terre
DE69727383T DE69727383D1 (de) 1996-12-02 1997-04-03 Verfahren und vorrichtung zur abtrennung und ladung von erde

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP.317296 1996-12-02
PL31729696A PL180409B1 (pl) 1996-12-02 1996-12-02 Sposób odspajania i zaladunku ziemi na srodki transportoweoraz urzadzenie do odspajania i zaladunku ziemi na srodki transportowe PL PL PL

Publications (1)

Publication Number Publication Date
WO1998024983A1 true WO1998024983A1 (fr) 1998-06-11

Family

ID=20068754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL1997/000005 Ceased WO1998024983A1 (fr) 1996-12-02 1997-04-03 Procede et agencement d'enlevement et de chargement de terre

Country Status (4)

Country Link
EP (1) EP0914525B1 (fr)
DE (1) DE69727383D1 (fr)
PL (1) PL180409B1 (fr)
WO (1) WO1998024983A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803536A1 (fr) 2000-01-10 2001-07-13 B M H S A Procede de prehomogeneisation de matieres en vrac, dispositif et utilisation correspondants
RU2257447C1 (ru) * 2004-05-11 2005-07-27 Государственное образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет Рабочий орган многоковшового экскаватора
CN101694103B (zh) * 2009-09-21 2011-07-06 熊梓光 一种底层推进挖掘机
GB2482261A (en) * 2007-07-03 2012-01-25 Gareth John Thomas Excavator vehicle
CN111807070A (zh) * 2020-08-07 2020-10-23 招远市铱璐光电科技有限公司 一种自行走铲斗输送机
CN111807072A (zh) * 2020-08-07 2020-10-23 招远市铱璐光电科技有限公司 一种铲料输送机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386987A (en) * 1920-08-19 1921-08-09 Pawling And Harnischfeger Comp Excavating-wheel
CH464094A (de) * 1967-11-06 1968-10-15 Bade & Co Gmbh Fräsgerät zur Unterfahrung von Versorgungselementen oder Baukörpern bei der Herstellung von Schlitzwänden
AU427389B1 (en) * 1971-03-08 1972-09-14 Hitachi Limited Continuous bucket wheel excavating machine
US4180927A (en) * 1975-03-03 1980-01-01 Unit Rig & Equipment Co. Digging bucket cylinder powered ejector system
DE3503915A1 (de) * 1984-02-07 1985-09-05 PHB Weserhütte AG, 5000 Köln Schaufelradbagger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386987A (en) * 1920-08-19 1921-08-09 Pawling And Harnischfeger Comp Excavating-wheel
CH464094A (de) * 1967-11-06 1968-10-15 Bade & Co Gmbh Fräsgerät zur Unterfahrung von Versorgungselementen oder Baukörpern bei der Herstellung von Schlitzwänden
AU427389B1 (en) * 1971-03-08 1972-09-14 Hitachi Limited Continuous bucket wheel excavating machine
US4180927A (en) * 1975-03-03 1980-01-01 Unit Rig & Equipment Co. Digging bucket cylinder powered ejector system
DE3503915A1 (de) * 1984-02-07 1985-09-05 PHB Weserhütte AG, 5000 Köln Schaufelradbagger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803536A1 (fr) 2000-01-10 2001-07-13 B M H S A Procede de prehomogeneisation de matieres en vrac, dispositif et utilisation correspondants
RU2257447C1 (ru) * 2004-05-11 2005-07-27 Государственное образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет Рабочий орган многоковшового экскаватора
GB2482261A (en) * 2007-07-03 2012-01-25 Gareth John Thomas Excavator vehicle
CN101694103B (zh) * 2009-09-21 2011-07-06 熊梓光 一种底层推进挖掘机
CN111807070A (zh) * 2020-08-07 2020-10-23 招远市铱璐光电科技有限公司 一种自行走铲斗输送机
CN111807072A (zh) * 2020-08-07 2020-10-23 招远市铱璐光电科技有限公司 一种铲料输送机
CN111807072B (zh) * 2020-08-07 2025-04-11 招远市铱璐光电科技有限公司 一种铲料输送机
CN111807070B (zh) * 2020-08-07 2025-05-27 招远市铱璐光电科技有限公司 一种自行走铲斗输送机

Also Published As

Publication number Publication date
PL180409B1 (pl) 2001-01-31
EP0914525A1 (fr) 1999-05-12
EP0914525B1 (fr) 2004-01-28
DE69727383D1 (de) 2004-03-04
PL317296A1 (en) 1998-06-08

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