EP1215344A1 - Machine de creusement et accessoire pour lever les deblais - Google Patents

Machine de creusement et accessoire pour lever les deblais Download PDF

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Publication number
EP1215344A1
EP1215344A1 EP00830841A EP00830841A EP1215344A1 EP 1215344 A1 EP1215344 A1 EP 1215344A1 EP 00830841 A EP00830841 A EP 00830841A EP 00830841 A EP00830841 A EP 00830841A EP 1215344 A1 EP1215344 A1 EP 1215344A1
Authority
EP
European Patent Office
Prior art keywords
archimedean screw
digging tool
excavation
machine
digger
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Withdrawn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
EP00830841A
Other languages
German (de)
English (en)
Inventor
Marco Lazzati
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.)
Tesmec SpA
Original Assignee
Tesmec SpA
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 Tesmec SpA filed Critical Tesmec SpA
Publication of EP1215344A1 publication Critical patent/EP1215344A1/fr
Withdrawn legal-status Critical Current

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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
    • E02F5/06—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging elements mounted on an endless chain
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger

Definitions

  • the invention concerns a digger machine equipped with a device to lift the material resulting from the excavation.
  • the invention also concerns a device to lift the excavation material applied to a digger machine.
  • the digger machines to which the invention is applied are preferably but not exclusively of the type with a digging tool comprising a milling disk or chain associated with moving means.
  • the state of the art includes digging equipment of the road type consisting of a traction device, normally a tractor with tracks or tires or similar, at the rear of which a milling disk or chain is coupled, suitable to make an excavation in the ground to position electrical cables, pipes, optical fibres, water pipes or other such equipment.
  • a traction device normally a tractor with tracks or tires or similar, at the rear of which a milling disk or chain is coupled, suitable to make an excavation in the ground to position electrical cables, pipes, optical fibres, water pipes or other such equipment.
  • Conventional digger machines generally have problems caused by the difficulty of continuously removing the material produced by the excavation process. Normally, this material is deposited at the edges of the excavation, and at most is distanced laterally from the edges by means of brushes which form piles of material at the sides of the excavation.
  • the main purpose of the invention is to achieve a digger machine equipped with an auxiliary device suitable to lift the excavation material from the ground as it is gradually produced by the excavation process, so as to allow it to be easily removed and immediately discharged into a suitable container means.
  • a digger machine of the type equipped with a digging tool with a milling disk or chain, comprises a lifting device with an Archimedean screw arranged in a position substantially adjacent to said milling disk or chain.
  • the Archimedean screw device which can be selectively activated in co-ordination with the advance of the digger machine and with the activation of the digging tool, is suitable to continuously lift the excavation material, take it from the level of the ground where it is produced to a height such that it can be easily diverted or directed onto an appropriate removal and/or collection means.
  • the removal and/or collection means can preferably be a conveyor belt, or any other means suitable for the purpose.
  • the Archimedean screw device is arranged substantially orthogonal with respect to the ground where the excavation is made.
  • the device is inclined on one side with respect to the substantially vertical plane containing the milling disk or chain.
  • the axis of the Archimedean screw device is inclined by about 8 ⁇ 12° with respect to the vertical whereas, in an even more preferential embodiment, the Archimedean screw device is inclined by about 10° with respect to the vertical.
  • the Archimedean screw device comprises an inlet mouth for the material to be lifted, arranged in substantial proximity with the ground where the excavation is made and facing one side of the digging tool; diversion means are advantageously provided in front of the digging tool in order to direct the excavation material produced and lifted by said tool towards said mouth.
  • the outlet of the Archimedean screw device is associated advantageously with conveyor means, for example a belt, provided to transfer the excavation material substantially continuously towards a suitable means of transport, for example a truck or other type of movable means which precedes the digger machine.
  • conveyor means for example a belt
  • suitable means of transport for example a truck or other type of movable means which precedes the digger machine.
  • the outlet of the Archimedean screw device can be directly connected with a collection means moving at the side of the digger machine.
  • the Archimedean screw device according to the invention is advantageously associated with motor means equipped with a gear change in order to regulate its functioning according to the speed of advance of the digger machine, the speed of rotation of the tool and the depth and/or width of the excavation, which determine the quantity of material to be removed.
  • the Archimedean screw device is associated with means to regulate the height from the ground and/or the inclination with respect to the ground.
  • the number 10 denotes in its entirety a digger machine of the road type according to the invention, able to make excavations in the ground 11 to lay electrical cables, optical fibres, water pipes or similar.
  • the machine 10 is of a substantially conventional type, and is formed in this case by a tractor 12 with tracks to the rear of which a digging tool 13 is connected, in this case formed by a milling disk 14.
  • milling disk 14 can be replaced by a milling chain or other similar digging tool, and that the tractor 12 with tracks can be replaced by a drive means with tires or other type suitable for the purpose.
  • the machine 10 also comprises, behind the milling disk 14, a plowshare element 15 which collaborates in the excavation process, and a pair of brushes 16, arranged substantially at the level of the ground 11, the function of which is to distance the excavation material laterally from the edges of the excavation.
  • the machine 10 also comprises a device 17 to lift the excavation material, which consists of a vertical or substantially vertical Archimedean screw 18, arranged in front of the milling disk 14, substantially in co-operation with its circumference and slightly displaced sideways with respect thereto.
  • a device 17 to lift the excavation material which consists of a vertical or substantially vertical Archimedean screw 18, arranged in front of the milling disk 14, substantially in co-operation with its circumference and slightly displaced sideways with respect thereto.
  • the Archimedean screw 18 substantially consists of a screw 24 inserted inside a pipe 25 to contain the material which has been lifted.
  • the axis 18a of the Archimedean screw 18 is inclined with respect to the vertical by an angle ⁇ of between 8 and 12°, advantageously around 10°.
  • the Archimedean screw 18 is located, with respect to the milling disk 14, in such a manner so as to have the lower mouth, whereby the excavation material enters, arranged slightly above the level of the ground 11 and facing one side of the milling disk 14.
  • the Archimedean screw 18 is mounted on the structure of the digging tool 13 by means of a flange 19 associated with a shaped plate 20 which functions substantially as a guard to divert the excavation material generated by the milling disk 14 towards the mouth of the Archimedean screw 18.
  • the Archimedean screw 18 has an outlet mouth 21 from which the excavation material is discharged and possibly directed towards appropriate collection and removal means.
  • the outlet mouth 21 is associated with a conveyor belt 22 the function of which is to convey the material removed continuously by the Archimedean screw 18 and to unload it on a truck 23, which advances in front of the digger machine 10.
  • the lifting device 17 allows to continuously raise the excavation material to a height such as to render the collection and removal operations easier and more convenient; such operations would otherwise be extremely complex and at times even impossible, since they would have to take place substantially at ground level.
  • the lifting device 17 can be equipped with alarm systems or systems to signal malfunctions or blockages.
  • the tractor 12 can be of the radio controlled type so that operations can be remote controlled.

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)
  • Harvesting Machines For Root Crops (AREA)
EP00830841A 2000-12-13 2000-12-22 Machine de creusement et accessoire pour lever les deblais Withdrawn EP1215344A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD000224 2000-12-13
ITUD20000224 IT1315157B1 (it) 2000-12-13 2000-12-13 Macchina di scavo e relativo dispositivo di sollevamento delmateriale di risulta.

Publications (1)

Publication Number Publication Date
EP1215344A1 true EP1215344A1 (fr) 2002-06-19

Family

ID=11460446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00830841A Withdrawn EP1215344A1 (fr) 2000-12-13 2000-12-22 Machine de creusement et accessoire pour lever les deblais

Country Status (2)

Country Link
EP (1) EP1215344A1 (fr)
IT (1) IT1315157B1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US400154A (en) * 1889-03-26 Snow-plow
US3681863A (en) * 1970-07-14 1972-08-08 Leonid Nikolaevich Smirnov Wheel excavators for digging channels and trenches having variably angled slopes
US4109336A (en) * 1974-07-22 1978-08-29 Ford Donald E Automated machinery to clean debris from roadside ditches, collect it and then transport the debris to a major collecting area for disposing
FR2615544A1 (fr) * 1987-05-19 1988-11-25 Marais Jacques Procede et machine de preparation de tranchees pour cables ou autres dans tous types de sols
DE9214346U1 (fr) * 1992-10-23 1992-12-10 Westfalia Becorit Industrietechnik Gmbh, 4670 Luenen, De
WO1997044534A1 (fr) * 1996-05-23 1997-11-27 Samuel Edward Stratti Scie de taille de tranchees
FR2751676A1 (fr) * 1996-07-24 1998-01-30 Marais Sa Dispositif pour creuser des tranchees, et equipement d'evacuation des deblais, associe audit dispositif
US5960570A (en) * 1997-04-01 1999-10-05 Caterpillar Inc. Apparatus and method for removing silt from under a body of water

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US400154A (en) * 1889-03-26 Snow-plow
US3681863A (en) * 1970-07-14 1972-08-08 Leonid Nikolaevich Smirnov Wheel excavators for digging channels and trenches having variably angled slopes
US4109336A (en) * 1974-07-22 1978-08-29 Ford Donald E Automated machinery to clean debris from roadside ditches, collect it and then transport the debris to a major collecting area for disposing
FR2615544A1 (fr) * 1987-05-19 1988-11-25 Marais Jacques Procede et machine de preparation de tranchees pour cables ou autres dans tous types de sols
DE9214346U1 (fr) * 1992-10-23 1992-12-10 Westfalia Becorit Industrietechnik Gmbh, 4670 Luenen, De
WO1997044534A1 (fr) * 1996-05-23 1997-11-27 Samuel Edward Stratti Scie de taille de tranchees
FR2751676A1 (fr) * 1996-07-24 1998-01-30 Marais Sa Dispositif pour creuser des tranchees, et equipement d'evacuation des deblais, associe audit dispositif
US5960570A (en) * 1997-04-01 1999-10-05 Caterpillar Inc. Apparatus and method for removing silt from under a body of water

Also Published As

Publication number Publication date
ITUD20000224A1 (it) 2002-06-13
IT1315157B1 (it) 2003-02-03

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