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EP0080802A1 - Grabenfräse für Gestein - Google Patents

Grabenfräse für Gestein Download PDF

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Publication number
EP0080802A1
EP0080802A1 EP82305455A EP82305455A EP0080802A1 EP 0080802 A1 EP0080802 A1 EP 0080802A1 EP 82305455 A EP82305455 A EP 82305455A EP 82305455 A EP82305455 A EP 82305455A EP 0080802 A1 EP0080802 A1 EP 0080802A1
Authority
EP
European Patent Office
Prior art keywords
machine
boom
cutting head
control arm
trench
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.)
Withdrawn
Application number
EP82305455A
Other languages
English (en)
French (fr)
Inventor
James Christopher Wallace
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
Publication of EP0080802A1 publication Critical patent/EP0080802A1/de
Withdrawn legal-status Critical Current

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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
    • E02F3/181—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels including a conveyor
    • 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
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • 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
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
    • 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

Definitions

  • the present invention relates to a machine for cutting a trench in rock.
  • One known trench cutting machine comprises a giant chain saw mounted on a crawler chassis and equipped with tungsten carbide teeth which literally saw away the rock. These machines can cut a trench from 35 cm to 62 cm in width by using the appropriate width of chain and to a depth of up to 4.5 m.
  • this machine suffers from the disadvantage that considerable bounce is generated along the saw, especially when cutting the harder rocks, and this reduces the cutting efficiency. Primarily the problem arises because of the long unsupported length of the cutting arm.
  • rock cutting machines are known for face mining operations and these comprise a rotatable cutting head carried at the end of a boom pivotably attached to a crawler chassis.
  • these known machines cannot be used for cutting trenches and furthermore suffer from a similar vibration problem because they too have a long unsupported boom carrying the cutting head.
  • the present invention sets out to provide a machine for cutting a trench in rock which machine overcomes the problems with the known machine.
  • a machine for cutting a trench in rock comprising a mobile work platform adapted, in use, to straddle the line of the trench, a boom pivotably secured at one end to the work platform and having at its other end a rotatable cutting head, and a telescopic control arm extending between the work platform and that end of the boom adjacent the cutting head.
  • the telescopic control arm which is in the form of a hydraulically operable ram serves to move the cutting head on an arcuate path having a centre coincident with the pivot axis of the boom.
  • the control arm applies the necessary loading of the cutting head and because of the relatively short distance between the cutting head and the point of support, provided by the connection with the control arm, the problem with cutter head bounce is largely avoided.
  • the mobile work platform comprises two crawler chassis positioned one behind the other which are coupled by a pair of tie-bars.
  • the forward crawler carries the pivotal connection for the telescopic control arm and the rear crawler carries the pivotal connection for the boom.
  • the boom extends forwardly and downwardly from the rear crawler.
  • an endless conveyor is carried by the rear crawler and this is disposed aft of the boom and can be lowered into the trench formed by the cutting head so that a feed end, in use, is positioned immediately behind the cutting head so that spoil is removed from the trench and carried up the conveyor where it is transferred from the discharge end onto a transverse loading conveyor for subsequent discharge.
  • the tie-rods coupling the two crawler chassis are adjustable whereby the distance between them can be varied to accommodate a shorter boom when a shallower trench is required.
  • the boom may be telescopically adjustable in length.
  • the forward crawler chassis has mounted thereon a diesel engine which drives a generator for supplying all the electrical loads of the machine.
  • the cutting head is preferably driven by a water cooled electric motor through an epicyclic gearbox.
  • the telescopic ram is hydraulically operated as are the motors driving the tracks of the two crawler chassis.
  • the necessary hydraulic pump and hydraulic reservoir is preferably mounted on the forward chassis which also accommodates a fuel tank, a water circulating tank, chiller unit and cooling fan for the diesel engine as well as the electrical switch gear and breaker switch.
  • the machine is operated from a control cab on the rear crawler chassis from where the operator can see the cutting head operating.
  • the machine comprises a mobile work platform, generally indicated by reference numeral 1 which comprises two crawler chassis 3,5 disposed one behind the other and coupled together by a pair of tie bars 7.
  • the tie bars 7 may be fixed in length or may be adjustable telescopically by means of hydraulically operable rams, not shown.
  • Both crawler chassis 3 and 5, i.e. the forward tractor unit 5 and the rear tractor unit 3, are arranged in use to straddle the line of the trench and are supported on endless tracks 9.
  • the tracks are hydrostatically driven.
  • the machine is manouvered in a conventional manner by driving the tracks either together or independently.
  • One end 17 of a boom 11 is pivotally mounted on the rear tractor unit 3 by way of mounting blocks 13 and a pivot shaft 15.
  • the other end 19 of the boom carries a rotatable cutting head 21 which is rotated by means of a water cooled electric motor, accommodated in the boom, through an epicyclic gearbox.
  • the cutting head illustrated in Figure 2 is a cross rotating cutter, known as a ripper cutter having two cutters 23 carrying tungsten carbide teeth, which are spaced slightly apart axially on the axis X and rotatable about the axis X.
  • the cutting head may be a longitudinally rotating cutter, known as a milling cutter. Two examples of these are shown in Figures 4 and 5.
  • the forward tractor unit 5 has mounted thereon a telescopic control arm 25.
  • the control-arm is pivotally mounted on the forward tractor unit 5 by way of two mounting blocks 27 and two pivot pins 29.
  • the control arm 25 comprises a cylinder 31 and a number of concentric sleeves 33, 35, 37 which are of progressively smaller diameter and which are slidably received one within the other in a fluid sealing manner to form an extensible piston. Hydraulic fluid is introduced into the cylinder 31 whereupon the control arm is extendable.
  • the control sleeve 37 has a forked mounting bracket 39 which is coupled to the boom 11 by way of a pin 41.
  • the bracket 39 is positioned adjacent to the cutting head 21 at the end 19 of the boom 11. Pressurisation of the fluid in the cylinder 31 causes the control arm to extend and so move the cutting head on an arcuate path, shown by dotted lines 43, whose centre is coincident with the axis of the pivot shaft 15 of the boom 11.
  • the machine illustrated in Figure 1 or 2 has a boom which is sufficiently long to produce a 5m deep trench with the boom inclined at an angle of 45° to the horizontal.
  • the control arm pivots through an angle of approximately 50° from a position 35° to the vertical through vertical to an angle of 15° to the vertical.
  • the position at which the control arm 25 is coupled to the boom 11 adjacent to the cutting head adds to the stability of the cutting head so eliminating the vibration and bounce problems which would be expected if the control arm were omitted and the cutting force was applied by the long boom 11.
  • the operators control cabin 43 is mounted on the rear tractor unit 3 from where the operator can see the cutting head in operation.
  • the operator has controls for the cutting head speed and-for raising and lowering the cutting head by means of the control arm.
  • An endless chain conveyor 45 is mounted on the rear tractor unit and extends from a feed end 47, which in use is positioned in the trench adjacent to the cutting head and just rearwardly thereof, to a discharge end 49.
  • the conveyor 45 may be straight as illustrated or 'S' shaped such that the gradient of the conveyor is shallow of the feed end and the discharge end and steeper inbetween.
  • the conveyor passes through an opening in the centre of the rear tractor unit 3.
  • a transverse endless conveyor 51 is provided which transfers spoil discharged from the conveyor 45 to the side of the machine which is more convenient for subsequent disposal.
  • the forward end of the conveyor 45 may be provided with a flaired snoot where the width of trench cut is wider than the width of the conveyor.
  • the snoot may be provided with a cam type loading device which pushes spoil from the trench onto the conveyor.
  • ballast may be carried by either or both of the forward and rear tractor units 5,3.
  • the front tractor unit forms the power unit and is provided with a diesel engine which drives a generator supplying the necessary electrical requirements for the machine. This is housed within the body work of the forward unit in the compartment B.
  • a cooling fan A, water tank F_and chiller unit H is provided for maintaining the diesel engine at the correct operating temperature.
  • the forward tractor unit carries the fuel tank, and necessary electrical switch gear as well as the hydraulic reservoir and pumps for the power hydraulic components such as the telescopic ram and the braking system.
  • the conveyor may be powered by either electric or hydraulic motors.
  • FIG 3 shows an illustration of a similar machine to that illustrated in Figures 1 and 2 but it will be seen that in this machine the two crawler chassis are closer together.
  • the machine is intended for cutting trenches having a maximum depth of 2m. Consequently the machine employs a different length boom, control arm, and tie rods.
  • the same machine can be used for forming trenches 2m or 5m deep. Indeed the machine having a 5m maximum depth capacity can be used for forming 2m holes merely by controlling the movement of the boom 11 by the control arm.
  • the boom be at an angle of 45° when working at its maximum depth.
  • FIG. 1 The machine is otherwise identical to the machine of Figures 1 and 2 having corresponding parts.
  • Figure 3 shows stabilising feet 55. These may be provided on the larger machine.
  • Figures 4 and 5 show two alternative milling cutters for use with either of the described embodiments.
  • the illustrated ripper head is removed and replaced by the milling head which is rotated by an electric motor as previously described.
  • Figure 4 has two contra- rotating cutting heads,
  • Figure 5 has only one cutting head.
  • the machine In operation the machine is positioned to straddle the line of the trench and the boom lowered into contact with the ground.
  • the cutting head is rotated whilst applying force by way of the control arm to move the cutting head on an arcuate path and to remove rock from the forward end of the trench.
  • the conveyor is positioned on the floor of the trench and the spoil carried away.
  • the boom is raised and the machine moved forward and the process repeated. Initially it may be necessary to excavate the start of the trench by hand before commencing to use the machine for further excavation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP82305455A 1981-10-14 1982-10-14 Grabenfräse für Gestein Withdrawn EP0080802A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8130943 1981-10-14
GB8130943 1981-10-14

Publications (1)

Publication Number Publication Date
EP0080802A1 true EP0080802A1 (de) 1983-06-08

Family

ID=10525144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305455A Withdrawn EP0080802A1 (de) 1981-10-14 1982-10-14 Grabenfräse für Gestein

Country Status (1)

Country Link
EP (1) EP0080802A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040263A1 (de) * 1996-11-15 1999-08-12 Werner Doppstadt Maschine zum umsetzen von mieten
WO1999063291A1 (de) * 1998-06-02 1999-12-09 Tml Technik Gmbh Teleskopsysteme Verfahren und vorrichtung zum abtragen und/oder herausbrechen von schichten bzw. bereichen aus untergründen
GB2368358A (en) * 2000-10-23 2002-05-01 Mastenbroek Ltd Trenching method and apparatus
WO2003044286A1 (en) * 2001-11-13 2003-05-30 Mastenbroek Ltd Trenching method and apparatus
WO2020089251A2 (en) 2018-10-29 2020-05-07 Mastenbroek Ltd Trenching apparatus and a method of trenching
US11047234B2 (en) * 2016-08-12 2021-06-29 Chengdu Lieshizhe Rock-Breaking Technology Llc Vehicle body utilized in rockbreaker, rockbreaker and rock breaking method
WO2022053565A1 (en) 2020-09-10 2022-03-17 Mastenbroek Ltd A backfill device for a trencher and a method of backfilling a trench

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239498A (fr) * 1943-07-26 1945-10-31 Grands Travaux Sa Entreprise D Excavateur pour la formation de tranchées.
US3308564A (en) * 1965-09-27 1967-03-14 J A Terteling & Sons Inc Combination excavating trimming machine
US3526047A (en) * 1967-10-09 1970-09-01 Edmund Roessler Ditching machine having vertically adjustable wheels
US3711970A (en) * 1970-04-15 1973-01-23 Thiokol Chemical Corp Hydraulically controlled ditching plow having a counterbalancing wheeled trailer
DE2164116A1 (de) * 1971-12-23 1973-07-05 Alois Hohenschlaeger Vorrichtung zur erstellung einer oberflaechendrainage auf bestehenden rasenflaechen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239498A (fr) * 1943-07-26 1945-10-31 Grands Travaux Sa Entreprise D Excavateur pour la formation de tranchées.
US3308564A (en) * 1965-09-27 1967-03-14 J A Terteling & Sons Inc Combination excavating trimming machine
US3526047A (en) * 1967-10-09 1970-09-01 Edmund Roessler Ditching machine having vertically adjustable wheels
US3711970A (en) * 1970-04-15 1973-01-23 Thiokol Chemical Corp Hydraulically controlled ditching plow having a counterbalancing wheeled trailer
DE2164116A1 (de) * 1971-12-23 1973-07-05 Alois Hohenschlaeger Vorrichtung zur erstellung einer oberflaechendrainage auf bestehenden rasenflaechen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-B-R210 III/45a (RATHJENS) *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040263A1 (de) * 1996-11-15 1999-08-12 Werner Doppstadt Maschine zum umsetzen von mieten
US6364029B1 (en) 1996-11-15 2002-04-02 Werner Doppstadt Machine for displacing grindstones
WO1999063291A1 (de) * 1998-06-02 1999-12-09 Tml Technik Gmbh Teleskopsysteme Verfahren und vorrichtung zum abtragen und/oder herausbrechen von schichten bzw. bereichen aus untergründen
AU2001295755B2 (en) * 2000-10-23 2007-01-04 Mastenbroek Ltd Trenching method and apparatus
KR100822931B1 (ko) 2000-10-23 2008-04-16 마스턴브러익 엘티디. 트렌칭 방법 및 장치
JP4575961B2 (ja) * 2000-10-23 2010-11-04 マステンブレック・リミテッド 溝開削機械
US6658767B2 (en) 2000-10-23 2003-12-09 Mastenbroek Ltd. Trenching method and apparatus
GB2368358B (en) * 2000-10-23 2004-10-13 Mastenbroek Ltd Trenching method and apparatus
GB2368358A (en) * 2000-10-23 2002-05-01 Mastenbroek Ltd Trenching method and apparatus
JP2008150942A (ja) * 2000-10-23 2008-07-03 Mastenbroek Ltd 溝開削機械
WO2002035016A1 (en) * 2000-10-23 2002-05-02 Mastenbroek Ltd. Trenching method and apparatus
KR100824099B1 (ko) * 2001-11-13 2008-04-21 마스턴브러익 엘티디. 트렌칭 방법 및 장치
CN1322205C (zh) * 2001-11-13 2007-06-20 马斯坦布罗克有限公司 挖掘方法和挖掘设备
WO2003044286A1 (en) * 2001-11-13 2003-05-30 Mastenbroek Ltd Trenching method and apparatus
US11047234B2 (en) * 2016-08-12 2021-06-29 Chengdu Lieshizhe Rock-Breaking Technology Llc Vehicle body utilized in rockbreaker, rockbreaker and rock breaking method
WO2020089251A2 (en) 2018-10-29 2020-05-07 Mastenbroek Ltd Trenching apparatus and a method of trenching
WO2020089251A3 (en) * 2018-10-29 2020-07-23 Mastenbroek Ltd Trenching apparatus and a method of trenching
WO2022053565A1 (en) 2020-09-10 2022-03-17 Mastenbroek Ltd A backfill device for a trencher and a method of backfilling a trench

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19831103

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19850219