WO2020202024A1 - Équipement d'excavation pour machine d'exploitation, et machine d'exploitation équipée d'un tel équipement - Google Patents

Équipement d'excavation pour machine d'exploitation, et machine d'exploitation équipée d'un tel équipement Download PDF

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Publication number
WO2020202024A1
WO2020202024A1 PCT/IB2020/053091 IB2020053091W WO2020202024A1 WO 2020202024 A1 WO2020202024 A1 WO 2020202024A1 IB 2020053091 W IB2020053091 W IB 2020053091W WO 2020202024 A1 WO2020202024 A1 WO 2020202024A1
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WO
WIPO (PCT)
Prior art keywords
excavation
steering
equipment
frame
tilting
Prior art date
Application number
PCT/IB2020/053091
Other languages
English (en)
Inventor
Mirco Risi
Original Assignee
Simex S.R.L.
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 Simex S.R.L. filed Critical Simex S.R.L.
Publication of WO2020202024A1 publication Critical patent/WO2020202024A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
    • E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters
    • 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
    • E02F3/183—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with digging unit shiftable relative to the frame
    • 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
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis

Definitions

  • the present invention relates to excavation equipment for an operating machine, and an operating machine comprising such equipment .
  • the present invention relates to excavation equipment having an excavation tool for the construction of trenches having longitudinal extensions or paths that can become tortuous.
  • Equipment which allows operating when the excavator moves on a non-horizontal plane, when a track, or a pair of wheels on the same side of the vehicle, could be higher (or lower) than the opposite track or pair of wheels.
  • US4878713 shows a drum cutter for paving carried on the front ends of the twin lift arms of a tracked front loader.
  • This solution has a drum cutter with radially protruding teeth.
  • the cutter is contained in a box-shaped housing which is open at the bottom and is supported in the central front part by a height- adjustable roller.
  • the cutter is fixed to lifting arms by means of a vertical plate frame element with wheels on each of its ends.
  • the housing is connected to the frame element so as to be adjustable laterally with respect to the work surface and also tilting in an adjustable manner around an axis which extends in the advancement direction. Both of these adjustments are made by a single hydraulic jack connected between the housing and the frame element.
  • This known solution allows milling surfaces both by machining trenches with flat bottom and trenches with inclined bottom, but it forces the rotation axis of the cutter to remain orthogonal to the advancement direction .
  • Document EP0310074 shows a milling cutter which can be fixed to a movable structure, in particular a construction machine, a Unimog or the like.
  • This cutter is a rotary drum cutter housed in an inverted U-shaped support structure and rotatably connected to an inverted L-shaped support.
  • the rotation axis of the drum cutter is adjustable only in sequence in a first pitching oscillation and in yaw sequence, with respect to the advancement direction of the vehicle, in order to also perform milling operations of trenches oriented in the advancement direction of the vehicle and with flat or inclined bottom, even when the cutter is placed alongside or on the side of the vehicle and not in front of it. If this solution was used in front of the vehicle and the pitch oscillation adjustment was used, there would be a change in the excavation depth.
  • the present invention falls within the previous context, proposing to provide excavation equipment and an operating machine capable of overcoming the above drawbacks.
  • the present invention also allows simultaneously maintaining an additional degree of freedom (that of tilting of the excavation tool, in fact) with respect to traditional machines, without however moving the center of gravity of the assembly away from the operating machine.
  • FIG. 1 is a front view of an operating machine which frontally supports an excavation equipment during an excavation in a work surface all at the same level, i.e. flat;
  • FIG. 2 shows a front view of an operating machine which frontally supports an excavation equipment during an excavation on a surface that has a difference in height, for example a step, on which the operating machine must climb to make the excavation, and thanks to the tilting excavation equipment it makes an excavation close to the difference in height but with the vertical excavation tool, that is, which follows a substantially vertical excavation;
  • FIG. 3 and 4 show a side view of the operating machine of figure 1 which follows an excavation of a first depth and one of a second depth smaller than the first;
  • FIG. 5 shows a side view of a detail of the Skid- Loader coupling portion or coupling translator with which a sliding support is slidably associated, highlighting the articulation means or tilting joint around the tilting axis indicated with T;
  • figures 6A, 6B, 7A, 7B show an operating machine to which an excavation equipment is associated frontally while making a trench, or excavation, having a predefined straight path and therefore a curve to the right (in figures 6A and 7A) and therefore straight and therefore a curve to the left (figures 6B and 7B) , in which the steering of the internal frame, and the associated external one, with respect to the rear frame is highlighted, in figures 6A and 7A to the right and in figures 6B and 7B to the left;
  • FIG. 8 shows an axonometric view with separate parts of an excavation equipment viewed from its left side, in respect of the working direction W;
  • FIG. 9 shows an axonometric view with separate parts of the excavation equipment of figure 8 viewed from its right side, in respect of to the working direction W.
  • excavation equipment 1 suitable for cooperating with an operating machine 10 comprises an internal frame 101.
  • Said internal frame 101 rotatably supports an excavation tool 12 adapted to make, for example, trenches 109 dug in a work surface Z along an advancement direction or working direction W.
  • Said excavation tool 12 being rotatable about a rotation axis R of excavation tool.
  • Said excavation equipment 1 further comprising a rear frame 103.
  • Said rear frame 103 supports said internal frame 101.
  • a steering device 108 is provided between said rear frame 103 and said internal frame 101.
  • Said steering device 108 defines a steering axis VE, or yaw axis, around which said excavation tool 12 rotates.
  • Said excavation equipment 1 is adapted to position itself frontally on an operating machine 10, so as to precede the operating machine 10 according to the working direction W.
  • Said steering axis VE is arranged substantially orthogonal to said advancement direction or working direction W and to said excavation tool rotation axis R.
  • Said excavation equipment 1 comprises a coupling portion or coupling translator 2, indicated with reference numeral 2 in the figures, with which a sliding support 105 to which said rear support 103 is connected is slidably supported and associated.
  • Said excavation equipment 1 comprises a tilting joint or articulation means 20 interposed between said sliding support 105 and said rear frame 103.
  • Said tilting joint or articulation means 20 defines a tilting axis T, or roll axis, arranged substantially orthogonal to said excavation tool rotation direction R. [0041] .
  • Said tilting axis T is arranged substantially orthogonal to said steering axis VE .
  • said steering axis VE is arranged substantially orthogonal to said advancement direction or working direction W.
  • said steering axis VE is arranged substantially orthogonal to said excavation tool rotation axis R.
  • said steering device 108 comprises at least one steering bearing 106.
  • Said steering bearing 106 comprises a first steering bearing part 112 which rotatably cooperates with a second steering bearing part 113 thereof.
  • Said steering bearing 106 is connected with said first steering bearing part 112 thereof to said rear frame 103 and with said second steering bearing part 113 thereof is connected with said internal frame 101.
  • Said steering bearing 106 defines a steering axis VE around which said excavation tool 12 rotates. [0050] . According to an embodiment, said steering axis VE is arranged orthogonal to said advancement direction or working direction W.
  • said excavation tool rotation axis R is arranged orthogonal to said advancement direction or working direction W.
  • said steering axis VE is arranged orthogonal to said advancement direction or working direction W and to said excavation tool rotation axis R.
  • said steering bearing 106 defines steering axis VE arranged orthogonal to said advancement direction or working direction W and orthogonal to said rotation axis R of the excavation tool 12.
  • said excavation equipment 1 comprises a steering adjustment actuator 104.
  • Said steering adjustment actuator 104 acts in thrust or traction between said rear frame 103 and said internal frame 101 so as to allow rotation of the excavation tool 12 around said steering axis VE .
  • said steering adjustment actuator 104 is hydraulic, mechanical or electric.
  • said excavation tool 12 is rotatable around said excavation tool rotation axis R with respect to said internal frame 101 by means of motor means 40, for example of the hydraulic, mechanical or electric type, said motor means 40 being engaged with, and being movable in a manner integral with, the excavation tool 12.
  • motor means 40 for example of the hydraulic, mechanical or electric type, said motor means 40 being engaged with, and being movable in a manner integral with, the excavation tool 12.
  • said excavation equipment 1 comprises a Skid-Loader coupling portion or coupling translator 2 with which a sliding support 105 is associated and slidably supported .
  • said excavation equipment 1 comprises a tilting joint or articulation means 20.
  • Said tilting joint or articulation means 20 comprises a tilting bearing 107.
  • Said tilting bearing 107 is connected with a first tilting bearing part thereof to said sliding support 105 and with a second part thereof, rotatably connected to the first part, it is connected to said rear frame 103.
  • said tilting bearing 107 defines a tilting axis T arranged orthogonal to said excavation tool rotation direction R.
  • said tilting bearing 107 defines a tilting axis T arranged parallel to said advancement direction or working direction W.
  • said tilting bearing 107 defines a tilting axis T arranged substantially orthogonal to said steering axis VE .
  • said excavation equipment 1 comprises a first actuator or actuator for actuating the excavation tool 38 acting in thrust or in traction between said sliding support 105 and said rear frame so as to allow rotation of the excavation tool 12 around a tilting axis T.
  • said steering bearing 106 comprises an internal fifth wheel 112 connected to said rear frame 103, and an external fifth wheel 113 connected to said internal frame 101.
  • said steering bearing 106 comprises curvilinear guides integral with said internal frame 101 or with said rear frame 103.
  • Said steering bearing 106 comprises shoes fitted on said curvilinear guides, said shoes being integral with said rear frame 103 or said internal frame 101.
  • said excavation equipment 1 is of the self-leveling type in which an internal frame 191 supports an excavation tool 12 and is housed inside an equipment body or external frame 4.
  • said excavation equipment 1 comprises an excavation depth adjustment actuator 102.
  • said excavation depth adjustment actuator 102 acts in thrust or traction between said internal frame 101 and said external frame 4 so as to allow the exit of said excavation tool 12 from said external frame 4 increasing or decreasing the excavation depth X.
  • the present invention also relates to an operating machine 10 comprising excavation equipment 1 according to any one of the preceding embodiments.
  • said excavation equipment 1 is placed frontally to said operating machine 10 so that said excavation equipment 1 precedes said operating machine 10 in the working direction W.
  • reference numeral 1 identifies as a whole an equipment for an operating machine 10.
  • such equipment is a trench excavator equipment.
  • such equipment is a milling equipment .
  • Such excavation equipment 1 comprises a coupling portion 2 to the operating machine 10, an equipment body 4, an excavation tool 12, articulation means 20 and optional adjustment means 16 of the excavation depth Ql, Q2.
  • the coupling portion 2 comprises one or more translation guides 54, 56 which extend parallel to the thickness of the excavation equipment 12, to allow a lateral displacement of the excavation tool 12, for example laterally with respect to a longitudinal center line U of the operating machine 10.
  • the equipment body 4 comprises a pair of abutment shoes 6 with a work surface Z.
  • Such equipment 1 may therefore be moved in a working direction W by virtue of the sliding contact between the abutment shoes 6 and the work surface Z.
  • the abutment shoes 6 are arranged side by side with the excavation tool 12.
  • the abutment shoes 6 are made of folded metal sheets.
  • the excavation tool 12 is mounted supported to an internal frame 101 which movably supports an external frame 4, forming said equipment body 4; said excavation tool is movably supported around a rotation axis R partially protruding in front of the abutment shoes 6, therefore in operation below the equipment body or external frame 4.
  • such a tool 12 is capable of removing or excavating a solid material starting from the work surface Z, for example vertically downwards according to the orientation in the figures .
  • the excavation tool 12 is in the form of a wheel or disk.
  • the excavation tool 12 is in the form of a roller or cylinder.
  • the excavation tool 12 peripherally comprises a plurality of excavation elements 14, for example oriented in a tangential direction with respect to the rotation axis R.
  • the excavation elements 14 comprise element ends 44 alternately axially oriented on opposite sides of the excavation tool 12.
  • the excavation tool 12 is rotatable with respect to the equipment body 4 by means of motor means 40.
  • the motor means 40 are hydraulic, mechanical or electric.
  • the excavation depth adjustment means Ql, Q2 of the equipment 1 are functionally connected to the equipment body 4 and to the excavation tool 12 to adjust a relative distance between one or both abutment shoes 6 and the excavation elements 14, in particular between a lower surface 58 of at least one abutment shoe 6 with respect to the element ends 44.
  • the adjustment direction is schematized by the double arrow 60.
  • the motor means 40 are engaged with, and can be moved integrally with, the excavation tool 12 by the excavation depth Ql, Q2 adjustment means 16.
  • the adjustment means 16 comprise a translation support 46 of the excavation tool, an adjustment arm 48 and an actuator 50 (optionally linear) connected to the equipment body 4.
  • the actuator 50 is pivoted on one side to the equipment body 4 and on the other side to the adjustment arm 48.
  • the adjustment arm 48 is in turn pivoted with the translation support 46 and is slidably mounted along a sliding guide 52 of the equipment body 4, for example in the form of a curved slot.
  • This type of adjustment means 16 has been discussed only by way of example. Other ways of adjusting the excavation depth according to other embodiments are possible.
  • the articulation means 20 are mechanically interposed between the coupling portion 2 and the excavation tool 12 to allow the rotation axis R to move around a tilting axis T incident or orthogonal to the rotation axis R.
  • the articulation means 20 are configured to allow desired orientations of the rotation axis R, so that the excavation tool is positioned satisfactorily in any event.
  • the articulation means 20 are adjustable or controllable to maintain a substantially horizontal orientation of the rotation axis R, for example despite possible lateral imbalances of the coupling portion 2 and of the operating machine 10 connectable to such a portion 2.
  • the tilting axis T is arranged substantially parallel to a working direction W of the excavation equipment 1, or parallel to a longitudinal direction of the operating machine 10.
  • the articulation means 20 are integrated between the coupling portion 2 and the equipment body 4.
  • the articulation means 20 comprise a rotation fulcrum 18 between the coupling portion 2 and the equipment body 4.
  • the articulation means 20 comprise at least a pair of sliding surfaces 22, 24 delimited by the coupling portion 2 and by the equipment body 4, radially spaced from the tilting axis T for guiding the tilting movement.
  • the excavation equipment 1 comprises internal sliding surfaces 22 which extend - for example annularly - around the rotation fulcrum 18.
  • the excavation equipment 1 comprises external sliding surfaces 24, radially offset with respect to the internal sliding surfaces 22 and which, according to a variant - extend in the form of a circular sector around the rotation fulcrum 18.
  • the excavation equipment 1 comprises the internal sliding surfaces 22 and the external sliding surfaces 24, which extend in sliding planes PI, P2 substantially orthogonal with respect to the tilting axis T.
  • the sliding planes PI, P2 are substantially parallel or coincident.
  • the sliding surfaces PI, P2 are axially spaced apart from the tilting axis T.
  • the external sliding surfaces 24 overtake the internal sliding surfaces 22 in the working direction W of the excavation equipment 1.
  • the internal sliding surfaces overtake the external sliding surfaces in the working direction W of the excavation equipment 1.
  • the excavation equipment 1 comprises guiding means 26, 28 of the equipment body 4 in different tilting positions.
  • the "tilting positions” are therefore the positions that the excavation tool 12 and the equipment body 4 reach following rotation around the tilting axis T. [00121].
  • the guiding means 26, 28 extend substantially arcuate around the tilting axis T and, specifically, are centered on this axis T.
  • the guiding means 26, 28 comprise at least one guide slot 30 (for example, a pair of slots 30, optionally opposite to each other) obtained at the equipment body 4 or the coupling portion 2, and at least one guide pin 32 connected to the coupling portion 2 or to the equipment body 4, slidably accommodated in the guide slot 30.
  • guide slot 30 for example, a pair of slots 30, optionally opposite to each other
  • end edges 34, 36 of the guide slot 30 provide end-of-stroke elements for the guide pin 32, in particular in limit tilting positions.
  • the guiding means comprise a guide member at the equipment body 4 or at the coupling portion 2, delimiting a recess in which a guide wall of the coupling portion 2 or of the equipment body 4 is slidably inserted.
  • the guide member may comprise an open box-like structure.
  • the articulation means 20 comprise at least a first actuator 38, optionally linear, acting in thrust or in traction between the coupling portion 2 and the equipment body 4, and configured for moving the latter in the different tilting positions.
  • the first actuator 38 works in a tangential direction S with respect to the tilting axis T, in at least a working position thereof.
  • the articulation means comprise a non-linear actuator.
  • the articulation means comprise a pinion and wheel/crown gear system - reciprocally meshed - for moving the equipment body 4 in the various tilting positions.
  • the operating machine 10 may comprise a fluidic power take-off for supplying the hydraulic motor means 40.
  • the operating machine 10 may comprise a power take-off for supplying the motor means 40 of a mechanical type.
  • the operating machine 10 may comprise supply means for supplying the electric motor means 40.
  • the operating machine 10 may be or may comprise a skid steer machine.
  • the described equipment allows the inclination of the rotation axis of the tool to be changed for removing material in a different way according to the arrangement of the coupling portion. [00137].
  • the equipment and the assembly object of the present invention allow an additional degree of freedom (that of tilting precisely) with respect to traditional machines, without however moving the center of gravity of the assembly away from the operating machine.
  • the equipment object of the present invention allows maintaining reduced dimensions in the longitudinal direction .
  • the equipment object of the present invention is extremely solid, and therefore suitable for withstanding without damage the excavation stresses despite the increased degrees of freedom.
  • the equipment object of the present invention has a reliable tilting movement, and precise limit switch positions .
  • the equipment object of the present invention is connected in a detachable manner removable from the operating machine, through simple operations.
  • the equipment object of the present invention maintains the degrees of freedom of traditional machines, including the lateral displacement of the excavation tool.
  • the excavation equipment 1 comprises external sliding surfaces 24 and internal sliding surfaces 22.
  • Said external sliding surfaces 24 are arranged, with respect to said tilting axis T, radially externally, that is, further away from a surface to be machined Z with respect to said internal sliding surfaces 22.
  • Said external sliding surfaces 24 are arranged and extend in sliding planes PI, P2.
  • Said sliding planes PI, P2 are substantially orthogonal with respect to said tilting axis T.
  • Said sliding planes PI, P2 are substantially parallel and, with respect to said tilting axis T, are axially spaced. Said external sliding surfaces 24 overtake the internal sliding surfaces 22 in the working direction W of the excavation equipment 1.
  • said excavation equipment 1 is of the self-leveling type in which an internal frame 101 supports an excavation tool 12 and wherein said internal frame 101 is housed inside an equipment body or external frame 4.
  • Said external frame 4 comprises opposite external frame side walls 201, 202 and at least one external frame front wall 203, wherein said external frame front wall 203 is rigidly connected to said opposite external frame side walls 201, 202 forming a structure in a single body that surrounds said internal frame 101 frontally, that is, surrounds it preceding the excavation tool 12 in the advancement direction or working direction W.
  • said external frame 4 comprises at least one shoe 204 suitable for resting on the work surface or surface to be machined Z so that said external frame 4 rests on said surface to be machined Z.
  • an external frame 203 with a box-like structure with external frame front wall 203 rigidly connected to opposite external frame side walls 201, 202, it is possible to ensure greater rigidity and durability of the external frame and therefore less maintenance of the equipment.
  • Excavation tool for example excavation wheel Excavation element

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

La présente invention concerne un équipement d'excavation (1) conçu pour coopérer avec une machine d'exploitation (10) comprenant : - un bâti interne (101) qui supporte de manière rotative un outil d'excavation (12) conçu pour réaliser, par exemple, des tranchées (109) creusées dans une surface de travail (Z) le long d'une direction d'avancement ou d'une direction de travail (W). L'outil d'excavation (12) peut tourner autour d'un axe de rotation (R) d'outil d'excavation. L'équipement d'excavation (1) comprend en outre un bâti arrière (103) qui supporte le bâti interne (101). Un dispositif de direction (108) est disposé entre le bâti arrière (103) et le bâti interne (101) et comprend un palier de direction (106) comportant une première partie de palier de direction (112) qui coopère de manière rotative avec une seconde partie de palier de direction (113) de celui-ci. Le palier de direction (106) est relié avec sa première partie de palier de direction (112) au bâti arrière (103) et est relié avec sa seconde partie de palier de direction (113) au bâti interne (101). Le palier de direction (106) définit un axe de direction (VE) autour duquel tourne ledit outil d'excavation (12), l'axe de direction (VE) étant agencé de façon orthogonale à la direction d'avancement ou à la direction de travail (W).
PCT/IB2020/053091 2019-04-02 2020-04-01 Équipement d'excavation pour machine d'exploitation, et machine d'exploitation équipée d'un tel équipement WO2020202024A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US496699A (en) * 1893-05-02 Dredging apparatus
US3933053A (en) * 1973-03-20 1976-01-20 Banister Pipelines Ltd. Ditcher
EP0310074A2 (fr) * 1987-10-02 1989-04-05 Franz Bröhl Dispositif de fraisage destiné à être monté à un appareil mobile
US4878713A (en) * 1988-12-09 1989-11-07 Alitec Corporation Pavement planing machine
GB2512945A (en) * 2013-04-13 2014-10-15 Auger Torque Europ Ltd Ground planer
WO2016038126A1 (fr) * 2014-09-10 2016-03-17 Simex Engineering S.R.L. Équipement d'excavation pour des surfaces d'excavation, en particulier des surfaces solides, et machine d'exploitation équipée dudit équipement d'excavation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US496699A (en) * 1893-05-02 Dredging apparatus
US3933053A (en) * 1973-03-20 1976-01-20 Banister Pipelines Ltd. Ditcher
EP0310074A2 (fr) * 1987-10-02 1989-04-05 Franz Bröhl Dispositif de fraisage destiné à être monté à un appareil mobile
US4878713A (en) * 1988-12-09 1989-11-07 Alitec Corporation Pavement planing machine
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