EP0258122B1 - Fräsvorrichtung zum Ausheben von Graben im Boden - Google Patents
Fräsvorrichtung zum Ausheben von Graben im Boden Download PDFInfo
- Publication number
- EP0258122B1 EP0258122B1 EP87401830A EP87401830A EP0258122B1 EP 0258122 B1 EP0258122 B1 EP 0258122B1 EP 87401830 A EP87401830 A EP 87401830A EP 87401830 A EP87401830 A EP 87401830A EP 0258122 B1 EP0258122 B1 EP 0258122B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- drums
- ground
- milling
- portions
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/13—Foundation slots or slits; Implements for making these slots or slits
-
- 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.
- Circular grooves have also been made in the support plate, centered on the axis of the drums, so that the milling tools fixedly mounted on the drums are spaced apart by a distance less than the thickness of the plate (cf. US-A 3,894,587).
- This solution has proved satisfactory.
- the plate thicknesses currently used the fact remains that the step remains of sufficient size to withstand the weight of the milling machine exerted through the lower surfaces of the edge of the support plate.
- the present invention aims to provide a different solution to the problem set out above, possibly in combination with the means already known.
- 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 of an axis substantially perpendicular to the plate, characterized in that the edge surfaces of said plate facing downwards have parts inclined with respect to the direction perpendicular to said plate, going from one of the faces of the plate to 'on its other side.
- the weight of the milling machine is transmitted to the step through these inclined parts, which therefore exert on the step a component of lateral force which tends to break it. Consequently, independently of the means possibly making it possible to reduce the thickness of the step, the present invention makes it easier to disaggregate this step and to ensure better penetration of the milling machine.
- the lower edge of said plate may for example be substantially semi-circular, said inclined parts being arranged in successive sectors of said lower edge.
- a plurality of alternately inclined parts are provided on each side of the plate.
- the lateral forces exerted by the step on the milling machine can have a substantially zero lateral component, which avoids deviations of the machine and therefore ensures the verticality of the trench.
- the milling machine shown in Figure 1 comprises in known manner a frame 1 at the bottom of which are mounted two milling drums 2 by means of vertical support plates 3.
- the axes 4 of rotation of the drums are perpendicular to the plates 3.
- hydraulic motors 5 are mounted on the plates 3 and have their output shafts integral with the drums 2 so as to rotate them in the opposite direction, in the direction of the arrows 6.
- the disaggregated soil by the drums 2 is brought back towards the lateral axis 7 of the milling machine where they are sucked by a suction nozzle 8.
- the milling drums 2 carry at their periphery milling peaks 9 which ensure the disintegration of the ground during the rotation of the drums.
- the peaks 9a closest to the plate 3 are inclined towards the transverse axis 10 of this plate so as to be as close as possible.
- step 11 at the bottom of the trench 12, step whose thickness is at least equal to the thickness of the plate 3, and on which the lower edge of the plate 3 abuts during the descent of the machine.
- each plate 3 which, in this case, is semi-circular, has inclined surfaces 13. These surfaces are inclined alternately on either side of the axis 10 of the plate 3 along successive sectors. Each inclined surface 13, for example at 45 ° , leaves from one of the faces of the plate 3 to its other face.
- the weight of the milling machine is reflected on the step 11, on the one hand by transverse forces according to arrow 14 in FIG. 2, and on the other hand by torsional forces according to arrows 15 in the Figure 3. These efforts cause the rupture of the step 11 so that it can not oppose the progress of milling the trench.
- milling drums which have been described as driven by hydraulic motors located in their hubs, can be driven by any other means, for example by means of chains connected to motors arranged in the frame.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Shovels (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Soil Working Implements (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87401830T ATE49432T1 (de) | 1986-08-07 | 1987-08-06 | Fraesvorrichtung zum ausheben von graben im boden. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8611460A FR2602530B1 (fr) | 1986-08-07 | 1986-08-07 | Engin de fraisage pour creuser des tranchees dans le sol |
FR8611460 | 1986-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0258122A1 EP0258122A1 (de) | 1988-03-02 |
EP0258122B1 true EP0258122B1 (de) | 1990-01-10 |
Family
ID=9338126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87401830A Expired - Lifetime EP0258122B1 (de) | 1986-08-07 | 1987-08-06 | Fräsvorrichtung zum Ausheben von Graben im Boden |
Country Status (9)
Country | Link |
---|---|
US (1) | US4800967A (de) |
EP (1) | EP0258122B1 (de) |
JP (1) | JPS6344030A (de) |
AT (1) | ATE49432T1 (de) |
CY (1) | CY1685A (de) |
DE (2) | DE258122T1 (de) |
FR (1) | FR2602530B1 (de) |
HK (1) | HK76793A (de) |
SG (1) | SG129292G (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2618172B1 (fr) * | 1987-07-16 | 1989-11-17 | Soletanche | Engin de fraisage pour creuser des tranchees dans le sol. |
DE60206355D1 (de) * | 2002-04-05 | 2006-02-09 | Spie Fond S Cergy Pontoise | Fräsrad und Schlitzwandfräse umfassend mindestens zwei Fräsräder |
FR2862336B1 (fr) * | 2003-11-18 | 2006-03-17 | Cie Du Sol | Machine de forage a outils rotatifs |
EP1580327B1 (de) * | 2004-03-26 | 2008-05-21 | BAUER Maschinen GmbH | Schlitzwandfräse |
DE502004005279D1 (de) * | 2004-08-23 | 2007-11-29 | Bauer Maschinen Gmbh | Vorrichtung und Verfahren zum Erstellen einer Schlitzwand im Erdboden |
FR2899608B1 (fr) * | 2006-04-06 | 2010-04-16 | Cie Du Sol | Outillage de forage |
FR2904338B1 (fr) * | 2006-07-28 | 2011-03-04 | Cie Du Sol | Tete de coupe pour machine d'excavation |
EP2378002B1 (de) * | 2010-04-16 | 2013-07-17 | BAUER Maschinen GmbH | Fräsvorrichtung zum Erstellen vertikal verlaufender Schlitze im Boden |
CN102286992A (zh) * | 2011-02-14 | 2011-12-21 | 张永忠 | 双潜水电机锯槽机 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750669A (en) * | 1955-06-28 | 1956-06-19 | Hohmann Joseph William | Frozen food cutter |
US2895218A (en) * | 1956-11-26 | 1959-07-21 | Petzoldt Werner | Knife for domestic or trade use |
FR1481221A (fr) * | 1966-04-01 | 1967-05-19 | Nouvelle machine à creuser les fossés | |
US3681863A (en) * | 1970-07-14 | 1972-08-08 | Leonid Nikolaevich Smirnov | Wheel excavators for digging channels and trenches having variably angled slopes |
ES420924A1 (es) * | 1972-12-14 | 1976-04-01 | Hydrosol | Dispositivo de perforacion. |
DE3424999C2 (de) * | 1984-07-06 | 1994-01-13 | Bauer Spezialtiefbau | Schlitzwandfräse |
DE3519774A1 (de) * | 1985-06-03 | 1986-12-04 | Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen | Fraesvorrichtung fuer eine schlitzwandfraese |
-
1986
- 1986-08-07 FR FR8611460A patent/FR2602530B1/fr not_active Expired
-
1987
- 1987-08-05 US US07/082,032 patent/US4800967A/en not_active Expired - Fee Related
- 1987-08-06 EP EP87401830A patent/EP0258122B1/de not_active Expired - Lifetime
- 1987-08-06 DE DE198787401830T patent/DE258122T1/de active Pending
- 1987-08-06 AT AT87401830T patent/ATE49432T1/de not_active IP Right Cessation
- 1987-08-06 DE DE8787401830T patent/DE3761384D1/de not_active Expired - Fee Related
- 1987-08-06 JP JP62197248A patent/JPS6344030A/ja active Pending
-
1992
- 1992-12-19 SG SG1292/92A patent/SG129292G/en unknown
-
1993
- 1993-07-29 HK HK767/93A patent/HK76793A/xx unknown
- 1993-10-10 CY CY1685A patent/CY1685A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ATE49432T1 (de) | 1990-01-15 |
SG129292G (en) | 1993-04-16 |
DE3761384D1 (de) | 1990-02-15 |
CY1685A (en) | 1993-10-10 |
DE258122T1 (de) | 1988-09-22 |
FR2602530B1 (fr) | 1989-06-30 |
US4800967A (en) | 1989-01-31 |
FR2602530A1 (fr) | 1988-02-12 |
HK76793A (en) | 1993-08-06 |
EP0258122A1 (de) | 1988-03-02 |
JPS6344030A (ja) | 1988-02-25 |
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