EP1223302A2 - Ensemble de dent de coupe - Google Patents

Ensemble de dent de coupe Download PDF

Info

Publication number
EP1223302A2
EP1223302A2 EP01127951A EP01127951A EP1223302A2 EP 1223302 A2 EP1223302 A2 EP 1223302A2 EP 01127951 A EP01127951 A EP 01127951A EP 01127951 A EP01127951 A EP 01127951A EP 1223302 A2 EP1223302 A2 EP 1223302A2
Authority
EP
European Patent Office
Prior art keywords
cutting tooth
arrangement according
tooth arrangement
sides
shaft
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.)
Granted
Application number
EP01127951A
Other languages
German (de)
English (en)
Other versions
EP1223302A3 (fr
EP1223302B1 (fr
Inventor
Werner Harthauser
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7951529&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1223302(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to DE50101470.5T priority Critical patent/DE50101470C5/de
Publication of EP1223302A2 publication Critical patent/EP1223302A2/fr
Publication of EP1223302A3 publication Critical patent/EP1223302A3/fr
Application granted granted Critical
Publication of EP1223302B1 publication Critical patent/EP1223302B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

Definitions

  • the invention relates to a cutting tooth arrangement for a Earth working tool with a cutting tooth, which one Has tooth head and a tooth shaft, and a bracket with insertion opening, in which the tooth shaft in an insertion direction is insertable, being inserted in an Position of the tooth shaft in the holder by means of a cross to the insertion direction arranged mounting pin detachable is supported.
  • a generic cutting tooth arrangement is an example from DE 40 02 907 A1.
  • This known arrangement becomes a tooth shaft in a pocket-shaped receiving space plugged into a drill bit, so that both the narrow and broad sides of the tooth shaft from Recording surfaces of the receiving pocket are surrounded.
  • a detachable Bracket with these known teeth order is through reached a fastening pin, which is approximately in the middle arranged on a broad side of the cuboid tooth shaft is and both the side surfaces of the receiving pocket as also penetrates a central area of the tooth shaft.
  • an earth-working machine in the sense of the invention it is, for example, a drilling device, a milling wheel or a milling chain that is used in civil engineering when creating of bores or in the manufacture of diaphragm walls be used.
  • the invention has for its object to provide a cutting tooth arrangement for a earthworking in which a wear when Erdbearbeitung and the burden it entails is further reduced to the maintenance of the earthworking implement.
  • the invention is achieved by a cutting tooth arrangement with the Features of claim 1 solved.
  • the bracket is fork-shaped with two holding arms that the Holding arms each have a system side, which on Narrow sides of the tooth shaft rest against the contact sides and the narrow sides to form a positive connection are provided with a profile transverse to the direction of insertion, and that on the system side at least one holding arm and on the corresponding narrow side of the tooth shaft in each case a recess is provided which is inserted in the Position together a passage for the mounting pin form.
  • the tooth shaft of a cutting tooth no longer overleaf, but taken up by two holding arms.
  • the roughly cuboid or tongue-shaped tooth shaft is only held on the narrow sides, so that the fork or U-shaped bracket a relatively small Surface that is subject to wear.
  • a particularly good attachment is thereby according to the invention achieved that on both investment sides and on both Narrow sides each have a recess and that the tooth shaft on both sides with two fastening pins is supported.
  • further fastening pins in the edge areas to provide the tooth shaft then also corresponding Number of recesses in the holding arms and Narrow sides of the tooth shaft are to be provided.
  • the positive connection between the plant side and the narrow side through a rear grip bar is formed.
  • a projecting ledge along the plant side is formed, which in a correspondingly trained Groove engages on the narrow side of the tooth shaft.
  • the flanks of the toothed shaft cover the projecting one in a manner Mold on the holding arms and protect them from Wear.
  • the holding arms can be separated from each other trained and on a corresponding body of the Earth working device attached, especially welded become.
  • a particularly simple and robust design is achieved according to the invention in that the holding arms in their foot area facing away from the insertion opening are connected to each other via a transverse yoke.
  • the holding arms can be formed in one piece.
  • the transverse yoke and the side surface that comes into contact with it the tooth shaft are also profiled. It can be a particularly safe and reliable positive connection between the bracket and the tooth shaft can be achieved.
  • the profile for the form fit between the holding arms and the tooth shaft can be sufficient known guides, such as a dovetail guide or a semicircular guide can be used.
  • a particularly robust and at the same time easy to manufacture design is achieved according to the invention in that the profiled contact side and the profiled narrow side a rectangular guide is formed.
  • a preferred embodiment of the invention continues in that a broad side of the tooth shaft, which in the inserted position facing away from the earth drilling rig and is facing the floor, protrudes from the bracket. Because not only wear on the tooth cutting edge during earth working, but overall on all facing the ground Surface occurs, the bracket is additionally by the protruding tooth shaft protected. That is, wear occurs increasingly on the tooth shaft while the bracket with the holding arms a significantly reduced wear is subject. Wear on the tooth shaft is less from an economic point of view critical since the tooth shaft is in any case with the tooth head must be replaced at relatively short intervals.
  • a holder 30 From the front view of a holder 30 according to the invention 1a shows the fork-shaped structure, which comprises two approximately parallel holding arms 34, which in its foot area with a semicircular Cross yoke 42 connected to one another and formed in one piece are.
  • the holding arms 34 are mirror-symmetrical to one another trained and only include a space on the side, in which a free side, insertion opening 32nd called, a cutting tooth in the direction of arrow B inserted is.
  • the Holding arms 34 On their mutually facing plant sides 36, the Holding arms 34 a bar 40 with a rectangular cross section, which is arranged approximately in the middle on the plant side 36 and extends over the two holding arms 34 and the transverse yoke 42. In the bar 40 are approximately in the middle of the Semi-circular recesses 38 are introduced, which for the partial inclusion of a fastening pin serve.
  • the strip 40 points to form a rectangular guide in the Cross-section an approximately rectangular or square Cross section on. This is in particular from FIG. 1b, which a cross-sectional view according to section A-A and 1d, which is a cross-sectional view according to section B-B.
  • Figure 1a shows the side of the bracket 30, which for attachment provided on a base body of an earth drilling device is.
  • the outside of the holder 30 has a sloping underside 43, to which in protected Arrangement of a weld seam can be provided can.
  • At the free ends of the holding arms 34 there is also one Chamfer 48 provided, which in any case for the simplified Attaching the bracket to a base body of the earth-working machine serves.
  • FIG. 2a An underside of a facing the earth-working machine Cutting tooth 10 according to the invention is shown in FIG. 2a.
  • the approximately cuboid cutting tooth 10 has a cutting head 12 and an approximately tongue-shaped Tooth shaft 14 on.
  • FIG. 12 As from the side view according to Figure 2b and the top view 2d can be clearly seen from FIG Cutting head 12 a receiving device for pin-shaped Cutting devices 26 are provided.
  • FIG. 3a shows the inner broad side of the cutting tooth arrangement according to the invention 1, which in operation is the base body of the earth-working machine is facing.
  • the toothed shaft is in the assembled, inserted position 14 of the cutting tooth 10 only laterally from the holding arms 34 of the holding device 30 comprises.
  • the Broad sides of the cutting tooth 10 are thus exposed, whereby however, one side through the base body of the not shown Soil cultivation equipment is covered.
  • Inserting the cutting tooth 10 in the insertion direction P in the Bracket 30 is not fixed in position by means of illustrated fastening pins 5.
  • the fastening pins 5 are inserted into passages 3, which through the recesses 18 on the cutting tooth 10 and the semicircular Recesses 38 in the edge region of the contact sides 36 of the holding arms 34 are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Shearing Machines (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Shovels (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Magnetic Heads (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP01127951A 2001-01-12 2001-11-23 Ensemble de dent de coupe Expired - Lifetime EP1223302B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50101470.5T DE50101470C5 (de) 2001-01-12 2001-11-23 Schneidezahnanordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20100550U DE20100550U1 (de) 2001-01-12 2001-01-12 Schneidzahnanordnung
DE20100550U 2001-01-12

Publications (3)

Publication Number Publication Date
EP1223302A2 true EP1223302A2 (fr) 2002-07-17
EP1223302A3 EP1223302A3 (fr) 2003-03-19
EP1223302B1 EP1223302B1 (fr) 2004-02-11

Family

ID=7951529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127951A Expired - Lifetime EP1223302B1 (fr) 2001-01-12 2001-11-23 Ensemble de dent de coupe

Country Status (7)

Country Link
EP (1) EP1223302B1 (fr)
AT (1) ATE259465T1 (fr)
DE (2) DE20100550U1 (fr)
DK (1) DK1223302T3 (fr)
ES (1) ES2215839T3 (fr)
HK (1) HK1046162B (fr)
PT (1) PT1223302E (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2545757A1 (fr) 2011-07-12 2013-01-16 Betek GmbH & Co. KG Power harrow tines
AT16203U1 (de) * 2017-11-14 2019-03-15 Dr Holger Selg In die untere Stirnfläche einer hohlzylindrischen Wandung eines Erdbohrers einzubringende Halter-Vorrichtung
DE102017126726A1 (de) * 2017-11-14 2019-05-16 Holger Selg Halter-Vorrichtung und Stollenkörper eines Erdbohrers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024111644A1 (de) * 2024-04-25 2025-10-30 Bauer Maschinen Gmbh Abtragszahn und verfahren zum abtragen von boden
DE102024111645A1 (de) * 2024-04-25 2025-10-30 Bauer Maschinen Gmbh Element zum einsatz bei der bodenbearbeitung und verfahren zum bearbeiten von boden

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002907A1 (de) 1990-02-01 1991-08-08 Leffer Stahl & App Schneidkrone fuer bohrrohre mit einfach auswechselbaren zaehnen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079710A (en) * 1961-06-22 1963-03-05 Esco Corp Ground-working tooth and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002907A1 (de) 1990-02-01 1991-08-08 Leffer Stahl & App Schneidkrone fuer bohrrohre mit einfach auswechselbaren zaehnen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2545757A1 (fr) 2011-07-12 2013-01-16 Betek GmbH & Co. KG Power harrow tines
AT16203U1 (de) * 2017-11-14 2019-03-15 Dr Holger Selg In die untere Stirnfläche einer hohlzylindrischen Wandung eines Erdbohrers einzubringende Halter-Vorrichtung
DE102017126726A1 (de) * 2017-11-14 2019-05-16 Holger Selg Halter-Vorrichtung und Stollenkörper eines Erdbohrers
DE102017126726B4 (de) 2017-11-14 2020-01-09 Holger Selg Halter-Vorrichtung und Stollenkörper eines Erdbohrers

Also Published As

Publication number Publication date
HK1046162B (zh) 2004-09-10
DE50101470C5 (de) 2017-11-16
EP1223302A3 (fr) 2003-03-19
DE20100550U1 (de) 2001-04-19
HK1046162A1 (en) 2002-12-27
ES2215839T3 (es) 2004-10-16
DE50101470D1 (de) 2004-03-18
DK1223302T3 (da) 2004-06-14
ATE259465T1 (de) 2004-02-15
EP1223302B1 (fr) 2004-02-11
PT1223302E (pt) 2004-06-30

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