EP0299871B1 - Engin de fraisage pour creuser des tranchées dans le sol - Google Patents

Engin de fraisage pour creuser des tranchées dans le sol Download PDF

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Publication number
EP0299871B1
EP0299871B1 EP88401831A EP88401831A EP0299871B1 EP 0299871 B1 EP0299871 B1 EP 0299871B1 EP 88401831 A EP88401831 A EP 88401831A EP 88401831 A EP88401831 A EP 88401831A EP 0299871 B1 EP0299871 B1 EP 0299871B1
Authority
EP
European Patent Office
Prior art keywords
drums
support plate
tools
axis
cutting machine
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
EP88401831A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0299871A1 (fr
Inventor
Bertrand Steff De Verninac
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.)
Soletanche SA
Original Assignee
Soletanche SA
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 Soletanche SA filed Critical Soletanche SA
Priority to AT88401831T priority Critical patent/ATE66987T1/de
Publication of EP0299871A1 publication Critical patent/EP0299871A1/fr
Application granted granted Critical
Publication of EP0299871B1 publication Critical patent/EP0299871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/22—Component parts
    • 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
    • E02F3/205—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 with a pair of digging wheels, e.g. slotting machines

Definitions

  • the present invention relates to a milling machine for digging trenches in the ground, and more particularly such a machine of the type comprising at least one substantially vertical support plate on either side of which two milling drums are rotatably mounted around an axis substantially perpendicular to the plate.
  • This thickness of the support plate creates difficulties during the construction of the trench. Indeed, the milling tools mounted on the two drums on the side of the support plate must be sufficiently spaced from each other to allow the passage of this plate during rotation of the drums. This results in the formation of a step at the bottom of the trench, a width generally at least equal to that of the plate.
  • the lower edge of the support plate abuts on this step, and can therefore prevent drilling progress.
  • the milling tools are thus mounted fixed on the drums, but those of these tools which are projecting can be spaced apart by a distance less than the thickness of the plate.
  • the present invention aims to overcome these drawbacks.
  • the invention relates to a milling machine for digging trenches in the ground, of the type comprising at least one substantially vertical support plate on either side of which two milling drums are rotatably mounted around an axis substantially perpendicular to the plate, each of the drums carrying, on that of its edges which is adjacent to the support plate, at least one tool which projects laterally with respect to this edge, and the support plate comprising, opposite the trajectory of said tools, circular grooves coaxial with the drums through which the ends of these tools pass when the drums rotate, characterized in that the tools projecting from one of the drums are disposed at a distance from said axis different from the distance to said axis of the tools projecting from the other drum, said grooves correspondingly having different radii.
  • the invention therefore makes it possible to completely eliminate the step. It suffices in fact for this that the bottoms of the two grooves are substantially in the same plane. In fact, it is even possible, by shifting these planes, to make the paths of the projecting tools overlap.
  • the grooves can be machined in the support plate, but the latter is preferably made of cast steel.
  • it may have a sectional view along a plane passing through the axis of the drums, substantially an S shape.
  • the milling machine shown in FIG. 1 comprises a frame 1 at the lower part of which are mounted milling drums 2 a and 2 b provided at their periphery with milling tools 3.
  • the drums 2 a and 2 b are mounted on the frame 1 by means of a support device 4 shown in perspective in FIG. 2.
  • This support device essentially comprises a fixing base 5, a support plate 6, and a mounting ring 7.
  • the mean plane 8 of the support plate 6 is substantially vertical in operation, the axis 9 of the shell perpendicular to this plane.
  • the milling drums 2 a and 2 b are also centered on this axis 9.
  • Hydraulic motors (not shown) are mounted inside the shell 7 to drive the drums.
  • the drum 2 a comprises, on the plane 8 side, tools 10 a projecting laterally from its edge 11 a
  • the drum 2 b comprises, also on the plane 8 side, tools 10 b protruding laterally from its edge 11 b .
  • the radially outer edge of the tools 10 a is at a distance r a from the axis 9, while the radially outer edge of the tools 10 b is at a distance r b , less than r a , from this same axis.
  • the tools 10 a and 10 b project laterally from the edges of their respective drums by a distance such that they extend practically to the plane 8.
  • the plate 6 has two circular grooves 12 a and 12 b centered on the axis 9.
  • the bottoms of the grooves 12 a and 12 b are are substantially in plane 8, their radius being respectively equal to r a and r b .
  • the support plate 6 is in this case made of cast steel.
  • the grooves 12 a and 12 b therefore result from the molding of the plate, so that the latter has in axial section, as seen in FIG. 1, substantially an S shape.
  • the plate 6 is also, in this case, provided with conduits 13 for supplying the hydraulic fluid to the motor for driving the milling drums.
  • Figure 1 shows the milling machine according to the invention disposed in a trench 14. We see that at the bottom of the trench the tools 10 a leave in place only a half step 15, which is itself removed by tools 10 b .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Soil Working Implements (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Milling Processes (AREA)
EP88401831A 1987-07-16 1988-07-13 Engin de fraisage pour creuser des tranchées dans le sol Expired - Lifetime EP0299871B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401831T ATE66987T1 (de) 1987-07-16 1988-07-13 Fraesvorrichtung zum ausheben von graeben im boden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8710069 1987-07-16
FR8710069A FR2618172B1 (fr) 1987-07-16 1987-07-16 Engin de fraisage pour creuser des tranchees dans le sol.

Publications (2)

Publication Number Publication Date
EP0299871A1 EP0299871A1 (fr) 1989-01-18
EP0299871B1 true EP0299871B1 (fr) 1991-09-04

Family

ID=9353212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401831A Expired - Lifetime EP0299871B1 (fr) 1987-07-16 1988-07-13 Engin de fraisage pour creuser des tranchées dans le sol

Country Status (11)

Country Link
US (1) US4844549A (xx)
EP (1) EP0299871B1 (xx)
JP (1) JPH0657961B2 (xx)
AT (1) ATE66987T1 (xx)
CA (1) CA1297503C (xx)
CY (1) CY1716A (xx)
DE (2) DE3864616D1 (xx)
ES (1) ES2007580B3 (xx)
FR (1) FR2618172B1 (xx)
HK (1) HK59593A (xx)
SG (1) SG46393G (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
FR2862336B1 (fr) * 2003-11-18 2006-03-17 Cie Du Sol Machine de forage a outils rotatifs
FR2904339B1 (fr) * 2006-07-28 2011-03-04 Cie Du Sol Tete de coupe pour une machine d'excavation
FR2904338B1 (fr) * 2006-07-28 2011-03-04 Cie Du Sol Tete de coupe pour machine d'excavation
FR2914331B1 (fr) * 2007-03-28 2009-07-03 Cie Du Sol Soc Civ Ile Tete de coupe pour une machine de decoupe du sol a fraises rotatives

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545629A (fr) * 1967-06-29 1968-11-15 Cie Francaise De Geomecanique Appareil pour la réalisation de tranchées dans toutes formations géologiques
ES420924A1 (es) * 1972-12-14 1976-04-01 Hydrosol Dispositivo de perforacion.
US4391472A (en) * 1980-10-17 1983-07-05 The Cincinnati Mine Machinery Company Core eliminator for mining, road working or earth moving machinery
US4718504A (en) * 1985-03-15 1988-01-12 Tone Boring Co., Ltd. Trench excavator
DE3519774A1 (de) * 1985-06-03 1986-12-04 Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen Fraesvorrichtung fuer eine schlitzwandfraese
FR2602530B1 (fr) * 1986-08-07 1989-06-30 Soletanche Engin de fraisage pour creuser des tranchees dans le sol

Also Published As

Publication number Publication date
CA1297503C (fr) 1992-03-17
US4844549A (en) 1989-07-04
DE3864616D1 (de) 1991-10-10
ES2007580A4 (es) 1989-07-01
ES2007580B3 (es) 1992-03-01
EP0299871A1 (fr) 1989-01-18
FR2618172B1 (fr) 1989-11-17
CY1716A (en) 1994-05-06
SG46393G (en) 1993-06-25
ATE66987T1 (de) 1991-09-15
JPH0657961B2 (ja) 1994-08-03
HK59593A (en) 1993-06-25
JPS6433325A (en) 1989-02-03
FR2618172A1 (fr) 1989-01-20
DE299871T1 (de) 1989-08-03

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