EP0690174B1 - Dispositif de nivellement du sol, tel que des routes, des cours et analogues, constitué de matériaux non-asphalté, compacté, attelable à un véhicule tracteur à moteur - Google Patents

Dispositif de nivellement du sol, tel que des routes, des cours et analogues, constitué de matériaux non-asphalté, compacté, attelable à un véhicule tracteur à moteur Download PDF

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Publication number
EP0690174B1
EP0690174B1 EP95201552A EP95201552A EP0690174B1 EP 0690174 B1 EP0690174 B1 EP 0690174B1 EP 95201552 A EP95201552 A EP 95201552A EP 95201552 A EP95201552 A EP 95201552A EP 0690174 B1 EP0690174 B1 EP 0690174B1
Authority
EP
European Patent Office
Prior art keywords
cutter
roller
implement
ground
tools
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.)
Expired - Lifetime
Application number
EP95201552A
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German (de)
English (en)
Other versions
EP0690174A1 (fr
Inventor
Ives Sassi
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.)
TECNO 2000 S.R.L.
Original Assignee
Tecno 2000 Srl
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Filing date
Publication date
Application filed by Tecno 2000 Srl filed Critical Tecno 2000 Srl
Publication of EP0690174A1 publication Critical patent/EP0690174A1/fr
Application granted granted Critical
Publication of EP0690174B1 publication Critical patent/EP0690174B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder

Definitions

  • This invention relates to the problem of levelling or flattening the surface of ground areas of incoherent tamped material which have not been coated with asphalt (or another coherent covering material), ie ground areas formed from tamped (and hence compacted) material such as dust, sand, crushed stone, gravel, pebbles and mixtures thereof.
  • the invention relates to unsurfaced roads (ie roads not coated with asphalt or like material), and uncoated courtyards and similar ground areas.
  • Machines for removing old asphalt layers from asphalted roads have been known for a considerable time, they using a rotating roller provided with teeth for disintegrating the asphalt layer, which is then loaded onto trucks and removed. These machines cannot be used for levelling unsurfaced roads (or courtyards or similar ground areas). Instead, mechanical shovels are used provided with a front tool in the form of a virtually vertical wall with which the upper layer of the ground area is scraped off. Alternatively further material is simply added to fill the cavities in the ground.
  • an implement for levelling ground areas is shown, to be coupled to a motor-driven towing vehicle, comprising a driven roller-cutter of substantially horizontal axis, to the cylindrical surface of which there is fixed a plurality of tools to crush and shift the ground to be treated, the roller-cutter being arranged with its axis substantially perpendicular to or possibly inclined to the direction of advancement; further comprising a vibrating plate means positioned to the rear of the roller-cutter, which rests on and batters against the ground and means for vibrating with a vertical component the plate means in order to compact against the ground the material crushed by the roller-cutter.
  • An object of the present invention is to provide an implement, in particular able to be towed by an agricultural tractor or an equivalent vehicle, which is of relatively simple and economical construction and is able to quickly and properly level tamped ground areas of incoherent material.
  • Figure 1 is a side view of the implement according to the invention coupled to an agricultural tractor.
  • Figure 2 is a section through the implement on the vertical plane II-II of Figure 3.
  • Figure 3 is a front view of the implement of the preceding figures.
  • Figure 4 is a rear view of the implement of the preceding figures.
  • Figures 5 and 5A show two different tool distributions on the surface of the roller-cutter 10, which is shown in single plane development.
  • the invention illustrated in the figures is a portable implement (indicated overall by 1) to be towed and driven by a tractor 2, in particular an agricultural tractor. It could however have its own dedicated drive part connected permanently to the implement 1.
  • the implement 1 comprises a roller-cutter 10 of substantially horizontal axis, on the cylindrical surface of which there is fixed a plurality of tools 11 able to crush and move the ground to be treated.
  • the implement comprises a rigid frame 20 which supports the roller-cutter 10, arranged with its shaft 14 substantially horizontal and substantially perpendicular (or possibly inclined) to the direction of advancement.
  • the frame 20 is provided with coupling points for connection to the coupling device of the tractor 2 (this device being usual for this type of machine) or a similar towing vehicle, Specifically, there is provided an upper point 21', carried by vertical lugs 25 fixed to the frame 20 and positioned in the vertical plane of symmetry of the implement 1, and two lower points 21" located on the front end of the implement and carried by vertical lugs 26 fixed to the frame 20.
  • the two points 21" are intended to be directly hinged to the two lower arms 3 of the coupling device of the tractor 2.
  • a linear actuator means in particular a cylinder-piston unit 4, is interposed between the upper coupling point 21' and a point 5 rigid with the tractor 2.
  • the frame 20 also supports a vibrating plate means 30 positioned to the rear of the roller-cutter 10 and having a substantially horizontal flat surface 31 with which it batters on the ground, and means to cause the plate means to vibrate with a vertical component to compact the material crushed by the roller-cutter.
  • the vibrating plate means 30 also acts as a ground support element for the implement 1.
  • the tools 11 are fixed to the cylindrical surface of the roller-cutter 10 in a manner positioned along one or more concordant helical lines about the cylindrical surface.
  • the reference numeral 12 indicates the ideal helical lines along which the tools 11 are positioned.
  • the tools 11 are however not shown for simplicity.
  • said tools 11 are in the form of a thick steel nail, the point of which projects outwards from a tool holder element 13 fixed to the roller-cutter 10, and extends in the direction of movement.
  • each tool 11 lies in a substantially radial plane (ie perpendicular to the axis of the roller-cutter) and forms an angle of about 45 degrees with the tangent to the direction of movement at that point.
  • the main frame 20 supports a rigid hood 15 which covers the front, the top and the rear of the roller-cutter 10 and has its front wall 151, upper wall 152 and rear wall 153 spaced slightly from the cylindrical surface of the roller-cutter 10. Between the inner surface of the hood 15 and the outer surface of the roller-cutter 10 there is defined a chamber 19 which enables the material crushed by the roller-cutter 10 to be accumulated.
  • the vibrating plate means 30 comprises two identical plates 32 which together cover the entire axial dimension of the roller-cutter 10. Said plates 32 comprise respective horizontal portions which together form the flat surface of the vibrating plate means 30.
  • Each plate 32 is fixed to the frame 20 by joints of elastomer material 33.
  • each plate 32 possesses ribs 34 projecting vertically upwards and extending in a longitudinal direction.
  • the top of the frame 20 comprises a like number of vertical stiffening walls 27 extending in longitudinal planes.
  • the upper surface of the ribs 34 is joined to the lower edge of the walls 27 by the interposed joints 33, which are rigidly fixed to said surfaces.
  • elastomer sheets can be provided directly fixed to the upper surface of the plates 32 and to the rear end of the frame 20.
  • connection between the frame 20 and plates 32 provided by the joints 33 is such as to enable the plates 32 to undergo substantially oscillations only in a vertical direction relative to the frame 20.
  • Respective eccentric devices 35 are fixed onto the two plates 32 and rotated by a motion transmission deriving from the power take-off 6 of the tractor 2.
  • Said transmission comprises a gearbox 41 which receives motion from the power take-off 6. From the box 41 there emerges a longitudinal shaft 42 which, by way of pulleys 43 and 44, transmits motion to a gearbox 45 from which two transverse driven shafts 46 emerge, each of which drives the shaft 35' of the relative device 35 via two pulleys 47 and 48.. Rotating the eccentrics of the device 35 causes the plates 32 to undergo short oscillatory translational movements in a vertical direction relative to the frame 20.
  • the implement 1 comprises, to the rear of the roller-cutter 10, a wall 24 inclined upwardly and forwardly relative to the ground, its lower edge 24' being positioned substantially grazing the ground surface A, in order to shift and scrape the material crushed by the roller-cutter 10.
  • said inclined wall 24 is joined to the front of the flat surface 31 of the plate means 30.
  • the tractor 2 tows the implement 1 with this latter resting on the ground A via its flat surface 31.
  • the implement 1 can be inclined by the required amount in a vertical longitudinal plane relative to the tractor 2, such that the lowest point on the circumferences B ( Figure 2) along which the points of the tools 11 move is below the ground line A.
  • This level difference represents the thickness of the layer of tamped material (dust, sand, crushed stone, grit, pebbles etc.) crushed by the roller-cutter 10.
  • the implement 1 together with the tractor 2 are then moved along the ground to be treated, in particular along an unsurfaced road.
  • the roller-cutter 10 is rotated in the direction of the arrow R and the vibrating plate means 30 is vibrated. As the implement 1 advances, the roller-cutter 10 bites into and crushes the ground by means of its tools 11. These, having crushed the ground into pieces of various dimensions (depending on various factors, such as the physical characteristics of the material of which the ground is composed), partly allow the material to fall and partly drag it with themselves in rotation, to more or less completely fill the chamber 19 defined between the roller-cutter 10 and the inner surface of the hood 15, in particular the region to the rear of the roller-cutter 10 (against the wall 153).
  • the tools 11 are not only aligned along inclined rows (forming the helical lines 12) but are also aligned along vertical lines L. This distribution is the most suitable for coarser crushing of the ground.
  • the distribution shown in Figure 5A differs from the preceding in that the vertical alignment lines 1' intersect the inclined rows. passing alternately through a tool and through the centre point between two tools. This distribution is more suitable for fine crushing of the ground.
  • the axis of the roller-cutter 10 can be slightly inclined to the plane of the surface 31 so that the roller-cutter 10 penetrates into the ground to a greater depth along the outer edge than along the centre line of the road.
  • the lower edge 24' of the rear wall 24 shifts and levels the crushed material by providing an effective scraping action which very flatly levels the ground.
  • the material is compacted by the action of the vibrating plates 32 following the roller-cutter 10, such that considerable hardness is achieved enabling it to be again used (as a road).
  • the result is that the longitudinal strip of ground subjected to the action of the implement 1 is, with a single passage, made perfectly flat and compacted to the extent that it is immediately able to perform its function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Paving Structures (AREA)
  • Soil Working Implements (AREA)
  • Road Repair (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Harvester Elements (AREA)

Claims (6)

  1. Machine pour niveler des sols tels que des routes, des cours et analogues, en matériau damé non revêtu d'un matériau cohérent, destinée à être attelée à un véhicule tracteur entraíné par un moteur, comprenant :
    un rouleau à couteaux (10) d'axe sensiblement horizontal, à la surface cylindrique duquel sont fixés une pluralité d'outils (11) susceptibles de broyer et de déplacer le sol (A) à traiter ;
    des moyens pour faire tourner ledit rouleau à couteaux autour de son axe ;
    des moyens pour supporter le rouleau à couteaux (10) disposé avec son axe essentiellement perpendiculaire ou éventuellement incliné par rapport à la direction d'avancement et pour maintenir la surface inférieure du rouleau à couteaux (10) à la profondeur requise en dessous de la surface du sol à traiter ;
    un plateau vibrant (30) positionné à l'arrière du rouleau à couteaux (10) et présentant une surface sensiblement plane horizontale (31) par laquelle il repose sur le sol (A) et bat contre lui, et des moyens (35) pour faire vibrer le plateau (30) avec une composante verticale, de façon à compacter contre le sol le matériau broyé par le rouleau à couteaux (10) ;
       caractérisée en ce qu'elle comprend :
       un capot rigide (15) recouvrant l'avant, le dessus et l'arrière du rouleau à couteaux (10), les parois du capot étant légèrement espacées de la surface du rouleau à couteaux (10) de façon à permettre au matériau qui a été broyé par le rouleau à couteaux (10) de s'accumuler entre la surface cylindrique du rouleau à couteaux (10) et le capot (15), lesdits outils (11) étant disposés alignés le long d'une ou plusieurs lignes hélicoïdales concordantes (12) s'étendant autour de la surface cylindrique du rouleau à couteaux (10), et étant positionnés relativement proches les uns des autres le long de chaque ligne (12) de façon à définir essentiellement pour les morceaux grossiers de matériau broyé une barrière s'étendant en hélice susceptible d'entraíner de tels morceaux.
  2. Machine selon la revendication 1, caractérisée en ce qu'étant constituée par une machine transportable comportant des points d'attelage (21' et 21" ) pour sa liaison au dispositif d'attelage d'un tracteur (2) ou d'un véhicule de traction similaire, elle comprend en outre :
    un châssis rigide (20) supportant l'arbre (14) du rouleau à couteaux (10) et le plateau vibrant (30), ledit plateau (30) agissant comme l'élément par lequel la machine (1) repose sur le sol (A) ;
    un moyen linéaire d'actionnement (4) reliant un point d'attelage (21) positionné sur le châssis principal (20) à un point (5) solidaire du tracteur (2), la profondeur de la surface inférieure du rouleau à couteaux (10) en dessous de la surface du sol (A) étant modifiée en faisant varier la longueur des moyens d'actionnement (4).
  3. Machine selon la revendication 1, caractérisée en ce qu'elle comprend, à l'arrière du rouleau à couteaux (10) et inclinée par rapport au sol, une paroi (24) dont le bord inférieur (24') est positionné sensiblement pour frôler la surface du sol (A) de manière à déplacer et racler le matériau qui a été broyé par le rouleau à couteaux (10).
  4. Machine selon la revendication 3, caractérisée en ce que ladite paroi inclinée (24) est réunie à l'avant de la surface plane (31) du plateau (30).
  5. Machine selon la revendication 1, caractérisée en ce que lesdits outils (11) se présentent sous la forme de pointes épaisses dont la pointe fait saillie vers l'extérieur, dans la direction du déplacement, à partir d'un élément (13) support d'outil fixé au rouleau à couteaux (10).
  6. Machine selon la revendication 1, caractérisée en ce que l'axe des outils (11) forme un angle d'environ 45 degrés avec la tangente à la direction de déplacement en ce point.
EP95201552A 1994-06-30 1995-06-12 Dispositif de nivellement du sol, tel que des routes, des cours et analogues, constitué de matériaux non-asphalté, compacté, attelable à un véhicule tracteur à moteur Expired - Lifetime EP0690174B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRE940036 1994-06-30
IT94RE000036U IT235142Y1 (it) 1994-06-30 1994-06-30 Fresa livellante

Publications (2)

Publication Number Publication Date
EP0690174A1 EP0690174A1 (fr) 1996-01-03
EP0690174B1 true EP0690174B1 (fr) 2001-08-22

Family

ID=11398576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95201552A Expired - Lifetime EP0690174B1 (fr) 1994-06-30 1995-06-12 Dispositif de nivellement du sol, tel que des routes, des cours et analogues, constitué de matériaux non-asphalté, compacté, attelable à un véhicule tracteur à moteur

Country Status (6)

Country Link
EP (1) EP0690174B1 (fr)
AT (1) ATE204624T1 (fr)
DE (1) DE69522275T2 (fr)
DK (1) DK0690174T3 (fr)
ES (1) ES2160140T3 (fr)
IT (1) IT235142Y1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20021136A (fi) * 2002-06-12 2004-03-09 Konepaja Timeka Oy Laite ja menetelmä soratien tai vastaavan kestopäällystämättömän maaston tasaamiseksi sekä kestopäällystämättömän maaston irrotamiseterä
EP1533422A1 (fr) * 2003-11-21 2005-05-25 Henning Hansen Maskinstation Appareil pour rénovation, nivellement et compactage de routes non asphaltées
DE102009029785A1 (de) * 2009-06-18 2010-12-23 Michael Steinbrecher Antriebssystem für die Fräswalze einer mobilen Fräsmaschine
AT12866U1 (de) * 2010-10-22 2013-01-15 Acv Engineering E U Loipenpflegegerät für landwirtschaftliche Fahrzeuge
AT510622A1 (de) * 2010-10-25 2012-05-15 Acv Engineering E U Schwenkvorrichtung für ein loipenpflegegerät eines landwirtschaftlichen fahrzeuges
WO2012167839A1 (fr) * 2011-06-10 2012-12-13 Caterpillar Paving Products Inc. Machine de traitement de surface
DE102011115265A1 (de) * 2011-09-29 2013-04-04 Wolfgang Schmailzl Arbeitsgerät zur Wiederherstellung von Straßenbanketten
DE102017100069A1 (de) * 2017-01-04 2018-07-05 Hamm Ag Bodenbearbeitungswalze

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504598A (en) * 1969-01-22 1970-04-07 Rex Chainbelt Inc Pulverizer-mixer with a vibratory tailboard
ES8405099A1 (es) * 1982-06-08 1984-05-16 Koehring Co "una maquina de movimiento de tierras para desmenuzar la capa superior de una superficie subyacente"
DE3244404A1 (de) * 1982-12-01 1985-01-31 Dynapac HOES GmbH, 2906 Wardenburg Vorrichtung zum herstellen tragfaehiger oberflaechen
DE8632321U1 (fr) * 1986-12-03 1987-01-29 Karl Kaessbohrer Fahrzeugwerke Gmbh, 7900 Ulm, De
DE8904599U1 (fr) * 1989-04-12 1989-12-07 Jgs-Ingenieurbuero Gmbh, 5200 Siegburg, De

Also Published As

Publication number Publication date
ITRE940036U1 (it) 1995-12-30
EP0690174A1 (fr) 1996-01-03
DK0690174T3 (da) 2001-10-08
ES2160140T3 (es) 2001-11-01
DE69522275D1 (de) 2001-09-27
DE69522275T2 (de) 2002-05-16
ATE204624T1 (de) 2001-09-15
IT235142Y1 (it) 2000-03-31

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