EP0249551B1 - Radbagger, insbesondere zum Ausheben von Gräben - Google Patents

Radbagger, insbesondere zum Ausheben von Gräben Download PDF

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Publication number
EP0249551B1
EP0249551B1 EP87401290A EP87401290A EP0249551B1 EP 0249551 B1 EP0249551 B1 EP 0249551B1 EP 87401290 A EP87401290 A EP 87401290A EP 87401290 A EP87401290 A EP 87401290A EP 0249551 B1 EP0249551 B1 EP 0249551B1
Authority
EP
European Patent Office
Prior art keywords
wheel
periphery
faces
face
digging
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
Application number
EP87401290A
Other languages
English (en)
French (fr)
Other versions
EP0249551A1 (de
Inventor
Daniel Rivard
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.)
Ets Rivard Sa Dite Ste
Original Assignee
Ets Rivard Sa Dite Ste
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 Ets Rivard Sa Dite Ste filed Critical Ets Rivard Sa Dite Ste
Priority to AT87401290T priority Critical patent/ATE48292T1/de
Publication of EP0249551A1 publication Critical patent/EP0249551A1/de
Application granted granted Critical
Publication of EP0249551B1 publication Critical patent/EP0249551B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • 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
    • 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
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • 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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Definitions

  • the present invention relates to a slicer wheel for a slicing machine.
  • the slicing machines include an automotive chassis, for example a tractor, on which is mounted a cutting wheel capable of being rotated and provided at its periphery with a plurality of tools for digging the ground.
  • the tools are either fixed directly to the periphery of the wheel, generally by welding, or fixed to removable crown portions regularly distributed around the periphery of the wheel, said portions being bolted to said wheel.
  • the first case prohibits the replacement of a broken tool or the change of types of tools by others, depending on the nature of the terrain encountered. It is then necessary to change the entire wheel.
  • the present invention overcomes these drawbacks and relates to a slicer wheel, the assembly and disassembly of the removable crown portions carrying the tools are carried out easily and quickly.
  • the slicer wheel according to the invention of the type in which the tools are mounted on crown portions removably fixed to the periphery of said wheel, the means for fixing each crown portion on the periphery of said wheel comprising a first set of two end faces, provided respectively at the ends of said crown portion, is characterized in that said fixing means comprise:
  • the fixing of said portion is achieved by the introduction of the key in the space defined between one of the end faces of the first assembly and one of the abutment faces of the second assembly causing the other end face of said first assembly to come into contact under pressure against the other face of stop of the second set, so as to allow blocking by jamming of said crown portion.
  • the two end faces of the first set are inclined so as to converge towards the convexity of said crown portion.
  • the inclinations of the two end faces of said first set are symmetrically identical with respect to a median perpendicular plane to said portion of the crown.
  • the two abutment faces of the second set are inclined so as to converge from outside the periphery of the wheel, one of the abutment faces of the second set having an inclination corresponding to that of one of the end faces of the first set, while the other abutment face of said second set has a different inclination than that of the other end face of said first set, the space separating the last two faces widening towards the outside of the periphery of the wheel.
  • the two abutment faces of the second set each belong to integral corners of said periphery.
  • said key has two lateral sides of corresponding inclination, one with that of the cooperating end face of the first set and the other with that of the cooperating stop face of the second set.
  • said key In order to increase the security of the fixing, said key, once introduced into the space delimited between said faces of different inclination, is held in position on said periphery by a retaining member.
  • a key is provided in said key. opening in which an element may be introduced to eject it out of the periphery of the wheel.
  • Said tools arranged on each removable crown portion mounted on the periphery of the wheel are either rock tools or ground tools.
  • said tools arranged on each removable crown portion are both rock tools and earth tools.
  • the invention also relates to a cutting wheel remarkable in that said portions carrying the tools are mounted in an annular groove formed at the periphery of the wheel, each corner comprising one of said abutment faces of the second assembly being mounted in said groove.
  • the invention relates to a remarkable slicing machine in that it comprises at least one slicer wheel as defined above.
  • the trencher wheel according to the invention is intended to make trenches in the ground. It is capable of being driven in rotation by drive means known per se but not shown.
  • This slicer wheel consists of a substantially flat circular flange 1 mounted to rotate about its axis 2. As shown more in FIGS. 2 to 4, at the periphery 3 of the flange 1, it is arranged, parallel and coaxial with it , a ring 6 secured to said flange by means of a lateral hoop 4 welded to one face of the flange 1. An annular groove 7 is then defined between the ring 6 and the part 5 of the face of the flange 1 in correspondence with the ring 6, the hoop 4 forming the bottom of the groove 7.
  • removable crown portions 8 preferably identical and regularly distributed over the periphery 3 of the flange 1, are capable of being arranged in the annular groove 7.
  • Tools 10, intended for digging the ground, are mounted on the face convex 11 of each of the crown portions 8.
  • supports 13 On the concave face 12 of each of them are provided supports 13 able to come to bear against the bottom of the groove 7 during the mounting of each portion 8.
  • Each portion of the removable crown 8 has two end faces 14A and 14B situated respectively at the ends of each of the portions. These two end faces 14A and 14B, defining a first set, are inclined to converge towards the convexity of each portion, that is to say towards the outside of the wheel. In addition, these two faces 14A and 14B are orthogonal to the plane of the wheel and, advantageously, have a symmetrically identical inclination with respect to the median perpendicular plane to each portion.
  • wedges 16 are arranged integrally by welding. More precisely, these corners 16 are positioned two by two, so that a portion of crown 8 can be introduced between two corners of the same couple in this case 16A and 16B. The length of the arc separating the two corners is greater than that of the corresponding crown portion 8.
  • each pair of corners 16A and 16B, each arranged on either side of a portion of crown 8, has two inclined abutment faces, respectively 17A and 17B.
  • each removable crown portion 8 in the groove 7 of said wheel is achieved by the cooperation of the first set of end faces 14A and 14B of a crown portion in the second set of faces of abutment 17A and 17B of a corresponding corner pair and by the interposition of a key 20 in said space 18 mentioned above.
  • the key 20 then has two lateral sides 21 and 22, one of which, 21, has an inclination identical to that of the face 14B of the crown portion 8, and the other of which, 22, has an inclination identical to that from face 17B of corner 16B.
  • the assembly and the fixing of a portion of crown 8 is carried out as follows: the portion 8 is introduced by the concave face 12 between the ring 6 and the part 5 of the flange defining the sides of the groove 7 until the supports 13 rest on the hoop 4 secured to the flange 1, and corresponding to the bottom of the groove 7.
  • the crown portion 8 is moved towards the corner 16A so that the face 14A and the face 17A of identical inclinations are disposed substantially opposite one another.
  • the insertion of the key 20 is thus facilitated since the space 18 separating the faces 14B and 17B is almost maximum.
  • the key 20 is then inserted into this space 18 so that its lateral sides 21 and 22 come into contact with the faces 14B and 17B respectively. Then, the key 20 is forced into place by means of a tool such as a hammer in the space 18, which has the consequence of displacing the portion of crown 8 against the corner 16A secured to at least one side of the throat. Thus, the face 14A is applied under pressure against the face 17A.
  • a retaining member 23 connects the key to the sides of the groove. More precisely, as shown in FIG. 4, an orifice 24 drilled in each of the keys comes opposite coaxial orifices 25 and 26, respectively made in some, 25, in part 5 of the flange 1 and the others, 26, in the ring 6.
  • the orifices 24, 25 and 26 are substantially coaxial, and the retaining member 23, such as a pin, is then pressed into its orifices to maintain and lock in position said key. Each key is thus held in its position.
  • the slicer wheel is then ready to operate.
  • each key is provided with an opening 29 allowing the insertion of an element therein for ejecting said key.
  • opening 29 Prior to dismantling a portion of crown 8, for example to replace it with another portion, it is necessary to remove the corresponding pin 23.
  • the tools 10 fixed on the convex face 11 of each of the removable crown portions 8 are either knives 31 intended for digging soft ground (earth, sand, etc.), or peaks 32 intended for digging hard ground (stones, rocks, ).
  • each corner could include an inclined abutment face 17A on which the inclined end face 14A of a first portion of the crown 8 is pressed and an inclined abutment face 17B, opposite the previous one, on which is pressed against the lateral side 22 of the key wedging a second portion of the crown contiguous to the first portion of the crown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (10)

1. Schürfrad, bei dem die Werkzeuge (10) auf Einfassungsteilen (8) montiert sind, die beweglich am Umfang (3) des Rades befestigt sind, wobei die Befestigungsmittel jedes Einfassungsteils (8) am Umfang (3) des Rades ein Paar Endflächen (14A und 14B) aufweisen, die jeweils an den Enden des Einfassungsteils (8) angebracht sind, dadurch gekennzeichnet, daß die Befestigungsmittel umfassen:
- ein Paar Anschlagflächen (17A und 17B), die fest am Umfang (3) des Rades angebracht sind und zu dessen Ebene senkrecht stehen; und
- ein Verschlußstück (20) in Form eines Keiles, das von außerhalb des Radumfangs in Richtung auf dessen Inneres zwischen die eine Endfläche (14B) und die eine Anschlagfläche (17B) eingefügt werden kann, um die andere Endfläche (14A) unter Krafteinwirkung gegen die andere Anschlagfläche (17A) zur Anlage zu bringen.
2. Schürfrad nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Endflächen (14A und 14B) so geneigt sind, daß sie zur konvex gewölbten Seite des Einfassungsteils (8) hin konvergieren.
3. Schürfrad nach Anspruch 2, dadurch gekennzeichnet, daß die Neigungswinkel der Endflächen (14A und 14B) bezüglich einer senkrechten Mittelebene des Einfassungsteils (8) symmetrisch sind.
4. Schürfrad nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die beiden Anschlagflächen (17A und 17B) so geneigt sind, daß sie zur Außenseite des Umfangs (3) des Rades hin konvergieren, wobei der Neigungswinkel der einen Anschlagfläche (17A) mit dem Neigungswinkel der einen Endfläche (14A) korrespondiert, während die andere Anschlagfläche (17B) einen von dem Neigungswinkel der anderen Endfläche (14B) abweichenden Neigungswinkel hat, so daß sich der Spalt (18), welcher die beiden zuletzt genannten Flächen (14B und 17B) voneinander trennt, vom Radumfang (3) nach außen aufweitet.
5. Schürfrad nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Anschlagflächen (17A und 17B) zu je einem mit dem Umfang (3) fest verbundenen Keilstück (16A und 16B) gehören.
6. Schürfrad nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Verschlußstück (20) zwei Seitenflächen (21 und 22) aufweist, wobei der Neigungswinkel der einen Seitenfläche (21) mit demjenigen der Endfläche (14B) und der Neigungswinkel der anderen Seitenfläche (22) mit demjenigen der Anschlagfläche (1 7B) korrespondiert.
7. Schürfrad nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das einmal in den zwischen den Flächen (14B und 17B) gebildeten Zwischenraum (18) eingeführte Verschlußstück (20) mittels eines Halteorgans (23) in seiner Stellung auf dem Umfang (3) festgehalten wird.
8. Schürfrad nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß in das Verschlußstück (20) eine Aussparung (29) eingearbeitet ist, in welche ein Hilfselement zum Herausheben des Verschlußstücks aus dem Umfang (3) eingesteckt werden kann, um das die Werkzeuge (10) tragende Einfassungsteil (8) demontieren zu können.
9. Schürfrad nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die die Werkzeuge tragenden Einfassungsteile (8) in eine Ringnut (7) montiert sind, die am Umfang (3) des Rades ausgebildet ist, wobei die Keilstücke (16), von denen jedes eine Anschlagfläche (17A, 17B) aufweist, in der Ringnut (7) befestigt sind.
10. Radbagger, dadurch gekennzeichnet, daß er wenigstens ein Schürfrad nach einem der Ansprüche 1 bis 9 aufweist.
EP87401290A 1986-06-11 1987-06-09 Radbagger, insbesondere zum Ausheben von Gräben Expired EP0249551B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401290T ATE48292T1 (de) 1986-06-11 1987-06-09 Radbagger, insbesondere zum ausheben von graeben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8608450 1986-06-11
FR8608450A FR2600095B1 (fr) 1986-06-11 1986-06-11 Roue trancheuse, notamment pour le creusage de tranchees

Publications (2)

Publication Number Publication Date
EP0249551A1 EP0249551A1 (de) 1987-12-16
EP0249551B1 true EP0249551B1 (de) 1989-11-29

Family

ID=9336232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401290A Expired EP0249551B1 (de) 1986-06-11 1987-06-09 Radbagger, insbesondere zum Ausheben von Gräben

Country Status (5)

Country Link
US (1) US4768297A (de)
EP (1) EP0249551B1 (de)
AT (1) ATE48292T1 (de)
DE (1) DE3761055D1 (de)
FR (1) FR2600095B1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969279A (en) * 1987-09-25 1990-11-13 Jan Mantingh Mobile earth mover having a scraper blade
FR2641807B1 (fr) * 1989-01-13 1991-04-05 Soletanche Dispositif de fixation des tambours de fraisage sur un appareil destine a creuser des tranchees dans le sol
DE4005617C2 (de) * 1990-02-22 1994-03-10 Orenstein & Koppel Ag Befestigung der Schaufeln und ggf. auch der Vorschneider an Schneidrädern
US5873186A (en) * 1997-01-13 1999-02-23 Yoder; Shaun Lamar Excavating machine with cleaning device
US5943797A (en) * 1997-01-13 1999-08-31 Samson Enterprises, Inc. Excavating machine with conveyor assembly
US5809670A (en) * 1997-01-13 1998-09-22 Yoder; Shaun Lamar Excavating machine with grooving device
US6055750A (en) * 1997-01-13 2000-05-02 Samson Enterprises, Inc. Excavating machine with lift arm assembly
US6193440B1 (en) 1999-02-26 2001-02-27 Kenneth A. Pidgeon Railroad cable plow apparatus
US7219452B1 (en) 2002-06-11 2007-05-22 Raguse Steven F Trench wheel apparatus and method of use
WO2006063166A2 (en) * 2004-12-08 2006-06-15 Yoder, Shaun Excavating machine for rocky and other soils
US20090007460A1 (en) * 2005-01-21 2009-01-08 Greenlee Joseph G Earth saw
ES2300921T3 (es) * 2005-10-25 2008-06-16 Bauer Maschinen Gmbh Diente de fresado para una maquina para trabajar el suelo.
US9695573B2 (en) 2009-07-23 2017-07-04 The Charles Machine Works, Inc. Trenching system with hydraulically adjustable hub
ES2883121T3 (es) * 2009-07-23 2021-12-07 Charles Machine Works Sistema zanjador
US9573295B2 (en) * 2013-05-02 2017-02-21 Surface Preparation Technologies, Llc Cutting tool, mounting bracket, and rotatable cutting head
US20150068072A1 (en) * 2013-09-06 2015-03-12 Advanced Tiling & Trenching, Inc. Trenching wheel with front-mounted cleaner
US10337168B2 (en) 2016-06-02 2019-07-02 The Charles Machine Works, Inc. Trenching assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295179A1 (fr) * 1974-12-19 1976-07-16 Marais Jacques Trancheuse a roue, notamment pour le creusage de tranchees
FR2420410A1 (fr) * 1978-03-22 1979-10-19 Lamouric Pol Dispositif pour le montage d'outils sur une roue, notamment d'outils de coupe sur une roue trancheuse
GB2023064A (en) * 1978-04-10 1979-12-28 Elfgen Apez Gmbh Milling tool for a rotating milling cylinder
US4335532A (en) * 1980-04-28 1982-06-22 Esco Corporation Excavating tooth
US4398607A (en) * 1981-06-08 1983-08-16 Roscoe Brown Corporation Auger with adjustable wear plate
US4413432A (en) * 1982-07-09 1983-11-08 Bierwith Robert S Wedge and clamp locking system

Also Published As

Publication number Publication date
FR2600095B1 (fr) 1989-05-26
US4768297A (en) 1988-09-06
FR2600095A1 (fr) 1987-12-18
EP0249551A1 (de) 1987-12-16
DE3761055D1 (de) 1990-01-04
ATE48292T1 (de) 1989-12-15

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