DE722600C - Roller drill - Google Patents

Roller drill

Info

Publication number
DE722600C
DE722600C DER105583D DER0105583D DE722600C DE 722600 C DE722600 C DE 722600C DE R105583 D DER105583 D DE R105583D DE R0105583 D DER0105583 D DE R0105583D DE 722600 C DE722600 C DE 722600C
Authority
DE
Germany
Prior art keywords
drill
drill head
collar
screwed
clamping ring
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
DER105583D
Other languages
German (de)
Inventor
Hermann Von Rautenkranz
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.)
RAUTENKRANZ INT HERMANN
Original Assignee
RAUTENKRANZ INT HERMANN
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 RAUTENKRANZ INT HERMANN filed Critical RAUTENKRANZ INT HERMANN
Priority to DER105583D priority Critical patent/DE722600C/en
Application granted granted Critical
Publication of DE722600C publication Critical patent/DE722600C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/20Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
  • Earth Drilling (AREA)

Description

Rollenbohrer Die Erfindung bezieht sich auf einen Rollenbohrer, bestehend aus mehreren in die Schwerstange einschraubbaren Bohrkopfsegmenten, die durch einen Klemmring zusammengehalten werden.Roll drill The invention relates to a roll drill consisting of of several drill head segments that can be screwed into the drill collar and that are supported by a Clamping ring are held together.

Es sind bereits Rollenbohrer bekannt, bei welchen die Bohrkopfsegmiente in die Schwerstange eingeschraubt und mittels Klemmringes oder einer Schraubmuffe zusammengehalten werden.Roll drills are already known in which the drill head segments screwed into the drill collar and by means of a clamping ring or a screw sleeve be held together.

Derartige Verbindungen sind aber als nachteilig zu bezeichnen, weil im Betrieb ,ein Lokkern des Bohrkopfes bzw. der Bohrkopfslegmente eintritt, was. zur Folge hat, daß einwandfreie Bohrarbeiten nicht mehr ausgeführt werden können, abgesehen davon, daß ein gelockerter Bohrkopf leicht zu Materialbrüchen und zum schnellen Verschleiß aller Bohrteile führt.Such connections are to be described as disadvantageous because in operation, a locomotive core of the drill head or the drill head segments occurs what. has the consequence that perfect drilling work can no longer be carried out, apart from the fact that a loosened drill head easily leads to material breaks and to rapid wear and tear of all drilling parts.

Im Gegensatz hierzu betrifft die Erfindung einen Rollenbohrer, bestehend aus mehrerem in die Schwerstange einschraubbaren Bohrkopfsegmenten, der sich im wesentlichen dadurch kennzeichnet, daß der Klemmring beim Einschrauben des Bohrkopfes vor der Stirnkante der Schwerstange zum Anliegen kommt, . so daß ihm die Schwerstange als Gegenmutter dient.In contrast, the invention relates to a roller drill consisting of of several drill head segments that can be screwed into the drill collar and that are located in the essentially characterized in that the clamping ring when screwing in the drill head comes to rest in front of the front edge of the drill collar,. so that the drill collar serves as a lock nut.

Durch die erfindungsgemäße Ausbildung des Rollenbohrers wird erreicht, daß ein Lockern des Bohrkopfes bzw. der einzelnen Se,-mente nicht mehr eintreten kann. und daß Materialbruch und -verschleiß ausgeschlossen ist, so daß eine unbedingte Bietriebssicherheit gewährleistet ist. -'Ein Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Rollenbohrers ist in der Zeichnung dargestellt.The inventive design of the roller drill is achieved that a loosening of the drill head or the individual Se, -mente no longer occur can. and that material breakage and wear are excluded, so that an unconditional Operational safety is guaranteed. -'An embodiment of one according to the invention trained roller drill is shown in the drawing.

Abb. i ist eine Seitenansicht, teilweise im Schnitt, und Abb.2 ein Schnitt nach Linie II-II der Abb. i. Der Bohrkopf des Rollenbohrers ist z. B. aus drei Segmentkörpern a, a1, zusammengesetzt, von denen jedes Teil mit einem Wellenzapfen b versehen ist. Auf denn Wellenzapfen b sind in bekannter Weise, z. B. mittels Kugel- und Walzenlager e, d, die Sehneidrollen e gelagert.Fig. I is a side view, partly in section, and Fig. 2 is a section along line II-II of Fig. I. The drill head of the roller drill is z. B. composed of three segment bodies a, a1, a ° , each part of which is provided with a shaft journal b. On because journal b are in a known manner, for. B. by means of ball and roller bearings e, d, the visual cutting rollers e mounted.

Auf den Gewindeansatz f des Bohrkopfschaftes g ist eine Ringmutter lt aufgeschraubt, welche die Bohrkopfseb-nente a, a1, fest zusammenspannt. Der Bohrkopfschaft ä ist konisch ausgebildet und in die Schwerstange eingeschraubt. Die Ringmutter h stützt sich unten auf einen Absatz der S!egme-nte a, a1, a°, und oben legt sie sich gegen die untere Stirnkante der Schwerstange, so daß diese Schwerstange als Gegenmutter für den Klemmring h dient und somit ein Lockern desselben im Betriebe verhindert. Der Klemmring h ist hierbei derart bemessen, daß sein Außendurchmesser geringer ist als derjenige des Bohrkopfes, so daß ein Beschädigen oder ungewolltes Lösen desselben nicht eintreten kann.A ring nut lt is screwed onto the thread attachment f of the drill head shank g , which tightly clamps the drill head planes a, a1, a ° together. The drill head shaft ä is conical and screwed into the drill collar. The ring nut h is supported at the bottom on a shoulder of the segments a, a1, a °, and at the top it lies against the lower front edge of the collar, so that this collar serves as a counter nut for the clamping ring h and thus loosening it prevented in the company. The clamping ring h is dimensioned in such a way that its outside diameter is smaller than that of the drill head, so that it cannot be damaged or accidentally loosened.

Claims (1)

PATENTANSPRUCH: Rollenbohrer, bestehend aus mehreren in die Schwerstange einschraubbaren Bohrkopfsegmenten, die durch einen Klemmring zusammengehalten werden, dadurch gekennzeichnet, daß der Klemmring (lt) beim Einschrauben des Bohrkopfes vor der Stirnkante der Schwerstange (i) zum Anliegen kommt, so daß ihm die Schwerstange (i) als Gegenmutter dient.PATENT CLAIM: Roller drill consisting of several drill head segments which can be screwed into the drill collar and which are held together by a clamping ring, characterized in that the clamping ring (lt) comes to rest in front of the front edge of the drill collar (i) when the drill head is screwed in, so that the drill collar fits into it (i) serves as a lock nut.
DER105583D 1939-07-06 1939-07-06 Roller drill Expired DE722600C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER105583D DE722600C (en) 1939-07-06 1939-07-06 Roller drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER105583D DE722600C (en) 1939-07-06 1939-07-06 Roller drill

Publications (1)

Publication Number Publication Date
DE722600C true DE722600C (en) 1942-07-13

Family

ID=7421198

Family Applications (1)

Application Number Title Priority Date Filing Date
DER105583D Expired DE722600C (en) 1939-07-06 1939-07-06 Roller drill

Country Status (1)

Country Link
DE (1) DE722600C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092408B (en) * 1958-08-30 1960-11-10 H W F Hartmetall Und Hartmetal Rotary boring chisels
DE3021733A1 (en) * 1980-06-10 1981-12-24 Kennametal Inc., 15650 Latrobe, Pa. Rotary ball roller rock-drill chisel - has readily replaceable rollers on shanks engaging cup with central cut-out

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092408B (en) * 1958-08-30 1960-11-10 H W F Hartmetall Und Hartmetal Rotary boring chisels
DE3021733A1 (en) * 1980-06-10 1981-12-24 Kennametal Inc., 15650 Latrobe, Pa. Rotary ball roller rock-drill chisel - has readily replaceable rollers on shanks engaging cup with central cut-out

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