DE3936730A1 - Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins - Google Patents

Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins

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Publication number
DE3936730A1
DE3936730A1 DE19893936730 DE3936730A DE3936730A1 DE 3936730 A1 DE3936730 A1 DE 3936730A1 DE 19893936730 DE19893936730 DE 19893936730 DE 3936730 A DE3936730 A DE 3936730A DE 3936730 A1 DE3936730 A1 DE 3936730A1
Authority
DE
Germany
Prior art keywords
rings
shaft
chisels
crank
coupled
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Withdrawn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
DE19893936730
Other languages
German (de)
Inventor
Gerhard Bihler
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19893936730 priority Critical patent/DE3936730A1/en
Publication of DE3936730A1 publication Critical patent/DE3936730A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H29/00Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
    • F16H29/02Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/006Mechanical motion converting means, e.g. reduction gearings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Direct drive for chisels to reduce motor revolutions. Motor tonque is transmitted by a universal shaft (2) to a crank shaft (3) which is located eccentrically in a shaft (4) and connected to the housing (5). The crank shaft (3), the couplers (6) and rings (7) form several crank pinions, so that the couplers (6), the crank pins (3') with the ring pins (7') revolve together. The rings (7) drive a hollow spindle (9) through a clamp and free wheel (8) element, which is connected to the shaft (4) by bearings (10) and interlocking nipples (11). Roller and diamond chisels are inserted in the chuck (9') and cooling liquid flows through apertures (4') in the shaft (4) to the chuck (9'). USE/ADVANTAGE - The drive mechanism for chisels works without gears.

Description

Die Erfindung betrifft ein Getriebe für Meißeldirektantriebe, das mechanisch die Motordrehzahl reduziert.The invention relates to a transmission for direct chisel drives, the mechanically the engine speed is reduced.

In der Tiefbohrtechnik werden vor allem hydraulische Meißeldirekt­ antriebe zum Richtbohren eingesetzt.Hydraulic chisels are used primarily in deep drilling technology drives used for directional drilling.

Die dazu verwendeten Turbinen und Moineau-Motoren erfordern hohe Drehzahlen, um gute Wirkungsgrade zu erzielen. Dem steht die Forderung nach niedrigeren Drehzahlen für Rollen- und Diamantmeißel entgegen.The turbines and Moineau motors used for this require high ones Speeds to achieve good efficiencies. That is the demand towards lower speeds for roller and diamond chisels.

Die zur Drehzahlreduktion eingesetzten Zahnrad-Planetengetriebe haben sich wegen dem geringen Einbauraum im Motorteil und wegen der Abdichtung bislang nicht bewährt.The planetary gearboxes used for speed reduction have due to the small installation space in the motor part and because of the seal not proven so far.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Getriebe für Meißel­ direktantriebe der eingangs bezeichneten Art zu schaffen, das ohne Zahnräder außerhalb des Motorteils in der Spülung arbeitet.The invention is therefore based on the object of a gear for chisels direct drives of the type mentioned to create that without Gears outside the engine part in the purge works.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Motordrehmoment auf eine Kurbelwelle übertragen wird, die mehrere Kurbelschwingen antreibt, die über Klemmkörper-Freiläufe eine Hohlspindel mit reduzierter Drehzahl für Rollen- und Diamantmeißel antreibt.This object is achieved in that the engine torque is transmitted to a crankshaft that drives several crank arms, a hollow spindle with reduced speed via sprag freewheels for roller and diamond chisels.

Für Meißeldirektantriebe ergibt sich dadurch der Vorteil, die Drehzahl und damit den Wirkungsgrad von Turbinen und Moineau-Motoren zu erhöhen.For direct chisel drives, this has the advantage of speed and thereby increase the efficiency of turbines and Moineau engines.

In der Folge ergibt sich der Vorteil, Meißeldirektantriebe vermehrt für das Leistungsbohren zu nutzen.This has the advantage of increasing direct chisel drives to use for performance drilling.

Die Erfindung wird anhand schematischer Zeichnungen eines Ausführungs­ beispieles näher erläutert. Es zeigt The invention is based on schematic drawings of an embodiment example explained in more detail. It shows  

Fig. 1 das Getriebe im Längsschnitt, Fig. 1, the transmission in longitudinal section;

Fig. 2 Schnitt A-B von Fig. 1, Fig. 2 shows a section AB of FIG. 1,

Fig. 3 das Getriebeschema. Fig. 3 shows the transmission diagram.

Fig. 1 zeigt das Getriebe 1 im Längsschnitt. Das Motordrehmoment wird mit der Gelenkwelle 2 auf die Kurbelwelle 3 übertragen. Die Kurbelwelle 3 ist exzentrisch im Schaft 4 gelagert, der mit dem Gehäuse 5 des Meißeldirektantriebes verbunden ist. Die Kurbelwelle 3, die Koppeln 6 und die Ringe 7 bilden mehrere Kurbelschwingen. Die Koppeln 6 ver­ binden dabei die Kurbelzapfen 3′ mit den Gelenkbolzen 7′ der Ringe 7. Im Ausführungsbeispiel werden drei Kurbelschwingen von drei um 120° versetzten Kurbelzapfen 3′ angetrieben. Die Ringe 7 treiben über Klemmkörper-Freiläufe 8 die Hohlspindel 9 an. Die Ringe 7 sind dabei in der Hohlspindel 9 gelagert. Die Hohlspindel 9 ist mit der Lager­ sektion 10 und mit der Nippeldichtung 11 auf Schaft 4 gelagert. In der Werkzeugaufnahme 9′ werden Rollen- und Diamantmeißel befestigt. Die Spülung 12 strömt durch Aussparung 4′ zur Werkzeugaufnahme 9′. Fig. 1 shows the transmission 1 in longitudinal section. The engine torque is transmitted to the crankshaft 3 by means of the cardan shaft 2 . The crankshaft 3 is mounted eccentrically in the shaft 4 , which is connected to the housing 5 of the direct chisel drive. The crankshaft 3 , the coupling 6 and the rings 7 form a plurality of crank arms. The coupling 6 ver bind the crank pin 3 'with the hinge pin 7 ' of the rings 7th In the exemplary embodiment, three crank arms are driven by three crank pins 3 'offset by 120 °. The rings 7 drive the hollow spindle 9 via sprag freewheels 8 . The rings 7 are mounted in the hollow spindle 9 . The hollow spindle 9 is mounted with the bearing section 10 and with the nipple seal 11 on the shaft 4 . In the tool holder 9 'roller and diamond chisels are attached. The flush 12 flows through recess 4 'to the tool holder 9 '.

Fig. 2 zeigt Schnitt A-B von Fig. 1. Die Kurbelzapfenlager der Koppeln 6 sind zur Montage geteilt und werden mit den Lagerschalen 6′ gehalten. Fig. 2 shows section AB of Fig. 1. The crank pin bearing of the coupling 6 are divided for assembly and are held with the bearing shells 6 '.

Fig. 3 zeigt das Getriebeschema. Kurbel 3′′, Koppel 6 und die Schwinge 7′′ bilden eine Kurbelschwinge. Im Ausführungsbeispiel ist die Kurbel 3′′ als Kurbelwelle 3 und die Schwinge 7′′ als Ring 7 ausgebildet. Die Drehbewegung der hin und her gehenden Schwinge 7′′ wird mit dem Klemm­ körper-Freilauf 8 in Pfeilrichtung 13 auf die Hohlspindel 9 übertragen. Die Drehbewegung der Kurbelschwinge ist ungleichförmig. Da jedoch im Ausführungsbeispiel drei Kurbelschwingen von drei um 120° versetzten Kurbeln 3′′ angetrieben werden, ist die erzeugte Rotation der Hohlspindel 9 so gleichförmig, daß keine negative Auswirkung auf den Betrieb der Rollen- und Diamantmeißel erfolgt. Fig. 3 shows the transmission diagram. Crank 3 '', coupling 6 and the rocker 7 '' form a crank rocker. In the exemplary embodiment, the crank 3 '' is designed as a crankshaft 3 and the rocker 7 '' as a ring 7 . The rotational movement of the rocker arm 7 'is transmitted with the clamping body freewheel 8 in the direction of arrow 13 to the hollow spindle 9 . The rotary motion of the crank arm is irregular. However, since in the exemplary embodiment three crank arms are driven by three cranks offset by 120 ° 3 ', the rotation of the hollow spindle 9 is so uniform that there is no negative effect on the operation of the roller and diamond chisels.

Im Ausführungsbeispiel beträgt die Übersetzung i = 9. Je nach Auslegung des Getriebes 1 kann die Übersetzung i = 4,5 bis 12 betragen.In the exemplary embodiment, the gear ratio is i = 9. Depending on the design of the transmission 1 , the gear ratio i = 4.5 to 12.

Alle Maschinenelemente von Getriebe 1 können in offener oder gedichteter Ausführung in der Spülung arbeiten.All machine elements of gear 1 can work in the flushing in an open or sealed version.

Claims (2)

1. Getriebe für Meißeldirektantriebe, das mechanisch die Motordrehzahl reduziert, dadurch gekennzeichnet, daß das Motor­ drehmoment mit einer Gelenkwelle (2) auf eine Kurbelwelle (3) übertragen wird, die exzentrisch in einem Schaft (4) gelagert ist, der mit dem Gehäuse (5) des Meißeldirektantriebes verbunden ist, daß die Kurbelwelle (3), die Koppeln (6) und die Ringe (7) mehrere, insbesondere drei Kurbelschwingen bilden, daß dabei die Koppeln (6) die Kurbelzapfen (3′) der Kurbelwelle (3) mit den Gelenkbolzen (7′) der Ringe (7) drehbar verbinden, daß die Ringe (7) über Klemmkörper-Freiläufe (8) eine Hohl­ spindel (9) antreiben, die mit Lagersektion (10) und Nippeldichtung (11) auf dem Schaft (4) gelagert ist, daß in einer Werkzeugaufnahme (9′) in der Hohlspindel (9) Rollen- und Diamantmeißel befestigt werden und daß die Spülung (12) durch eine Aussparung (4′) im Schaft (4) zur Werkzeug­ aufnahme (9′) strömt.1. Gearbox for direct chisel drives, which mechanically reduces the engine speed, characterized in that the engine torque is transmitted with an articulated shaft ( 2 ) to a crankshaft ( 3 ) which is mounted eccentrically in a shaft ( 4 ) which is connected to the housing ( 5 ) of the direct chisel drive that the crankshaft ( 3 ), the coupling ( 6 ) and the rings ( 7 ) form several, in particular three crank arms, that the coupling ( 6 ) the crank pin ( 3 ') of the crankshaft ( 3 ) with the hinge pin ( 7 ') of the rings ( 7 ) rotatably connect that the rings ( 7 ) via sprag freewheels ( 8 ) drive a hollow spindle ( 9 ) with the bearing section ( 10 ) and nipple seal ( 11 ) on the shaft ( 4 ) is mounted that roller and diamond chisels are fixed in a tool holder ( 9 ') in the hollow spindle ( 9 ) and that the flushing ( 12 ) through a recess ( 4 ') in the shaft ( 4 ) for tool holder ( 9 ') Flows. 2. Getriebe für Meißeldirektantriebe nach Anspruch 1, dadurch gekennzeichnet, daß die Kurbelzapfenlager der Koppeln (6) geteilt sind, daß die Kurbelzapfenlager mit Lagerschalen (6′) gehalten werden und daß die Ringe (7) in der Hohlspindel (9) gelagert sind.2. Gear for direct chisel drives according to claim 1, characterized in that the crank pin bearings of the coupling ( 6 ) are divided, that the crank pin bearings are held with bearing shells ( 6 ') and that the rings ( 7 ) in the hollow spindle ( 9 ) are mounted.
DE19893936730 1989-11-04 1989-11-04 Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins Withdrawn DE3936730A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893936730 DE3936730A1 (en) 1989-11-04 1989-11-04 Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893936730 DE3936730A1 (en) 1989-11-04 1989-11-04 Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins

Publications (1)

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DE3936730A1 true DE3936730A1 (en) 1991-05-08

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DE19893936730 Withdrawn DE3936730A1 (en) 1989-11-04 1989-11-04 Direct drive for chisels to reduce motor revolutions - comprises shafts coupled to crankshafts coupled to hollow sleeve driven by rings and crank pins

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030616A1 (en) * 1995-03-28 1996-10-03 Japan National Oil Corporation Device for controlling the drilling direction of drill bit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141866B2 (en) * 1971-08-20 1974-03-14 Kungurskij Maschinnostroitelny Sawod, Kungur (Sowjetunion) Turbine drill
DE3049836C2 (en) * 1979-09-11 1985-01-10 Vsesojuznyj naučno-issledovatel'skij institut burovoj techniki, Moskva Bottom hole drive for drilling tools

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141866B2 (en) * 1971-08-20 1974-03-14 Kungurskij Maschinnostroitelny Sawod, Kungur (Sowjetunion) Turbine drill
DE3049836C2 (en) * 1979-09-11 1985-01-10 Vsesojuznyj naučno-issledovatel'skij institut burovoj techniki, Moskva Bottom hole drive for drilling tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030616A1 (en) * 1995-03-28 1996-10-03 Japan National Oil Corporation Device for controlling the drilling direction of drill bit

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