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WO1990011455A1 - Organe de couplage - Google Patents

Organe de couplage Download PDF

Info

Publication number
WO1990011455A1
WO1990011455A1 PCT/AU1990/000113 AU9000113W WO9011455A1 WO 1990011455 A1 WO1990011455 A1 WO 1990011455A1 AU 9000113 W AU9000113 W AU 9000113W WO 9011455 A1 WO9011455 A1 WO 9011455A1
Authority
WO
WIPO (PCT)
Prior art keywords
helical
coupling means
members
male
female
Prior art date
Application number
PCT/AU1990/000113
Other languages
English (en)
Inventor
Ronald Edmond Eaton
Original Assignee
Wallis Industries Pty. Ltd.
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 Wallis Industries Pty. Ltd. filed Critical Wallis Industries Pty. Ltd.
Publication of WO1990011455A1 publication Critical patent/WO1990011455A1/fr

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
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded
    • E21B17/043Threaded with locking means
    • 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
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded
    • E21B17/0426Threaded with a threaded cylindrical portion, e.g. for percussion rods
    • 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
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B3/00Key-type connections; Keys
    • 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
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members
    • F16B37/12Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
    • 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
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • 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
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements

Definitions

  • THIS INVENTION relates to a coupling and in particular a coupling means for fixing a male member to a female member.
  • the invention resides in a coupling means for fixing a male member of substantially circular cross- section to a female member of complementary configuration, one of said members being formed with a helical groove to be in opposed relation to a correspondingly configured helical formation on the other member when the members are inter-engaged, a plurality of locking elements of substantially complementary configuration to the profile of the helical groove and helical formation being receivable between the helical formation and the helical groove on engagement of the male and female members.
  • the helical formation comprises a helical array of apertures.
  • the helical formation is formed as a continuous helical recess terminating short of the end/or ends of the one member.
  • the helical formation comprises a set of groove shaped recesses.
  • each locking element may be shaped as a ball.
  • the locking element may be cubic in shape.
  • the locking element may be substantially cylindrical in shape.
  • a set screw is receivable in the female member to be engagable with one or more locking elements received between the helical groove and the helical formation and the members are substantially fully engaged to cla pingly engage the locking element between the male and female members.
  • Figure 1 is a side elevation of a male member according to the first embodiment
  • Figure 2 is a sectional side elevation of a female member of the first embodiment
  • Figure 3 is a sectional side elevation of the male and female members when inter-engaged
  • Figure 4 is a side elevation of a male member according to the second embodiment.
  • Figure 4 is a side elevation of a female member according to the third embodiment.
  • Each of the embodiments relates to a means for effecting a coupling between two components which is intended to supplement and/or replace the conventional threaded interconnection which is used between a male and female member of complementary con iguration.
  • a threaded interconnection is required for a component which is involved in a transmission of large impact and/or torsional forces a threaded connection can provide the most effective interconnection, however by the nature of its inter-engagement and the high frictional forces which are established between the members, several difficulties can be experienced when it becomes necessary to separate the two components.
  • the first embodiment provides a male member 11 and a female member 12 of complementary configuration.
  • the female member is formed with a helical groove 13 which has a part circular profile.
  • the male member is formed with a helical formation in the form of a helical array of recesses 14.
  • Each recess has a part spherical configuration.
  • the helical array of recesses is complementary in its pitch to the helical groove 13 provided on the male member.
  • Each of the recesses 14 receives a ball 15 having a configuration conforming to the profile of the recess and of the helical groove 13.
  • the recesses 14 have a depth of less than the diameter of the balls in order that a portion of the surface of a ball received within a recess will extend beyond the surface of the male member.
  • the female member may be associated with a set screw (not shown) which is threadably received in an aperture provided in the wall of the female member which is in alignment with one of the recesses when the male and female members are fully engaged.
  • the engagement of the set screw with the ball located in the respective recess produces a clamping engagement of the ball between the male and female members to frictionally lock the members together.
  • the helical formation on the male member may take the form of a continuous helical groove shaped recess 114 of corresponding pitch to the helical groove on the female member but of a fixed length and which terminates short of the end of the male member.
  • the adjacent end of the helical recess is aligned with the entry to the helical groove provided in the female member and a ball is located therebetween.
  • additional balls are inserted into the space between the helical groove and helical recess until the helical recess is fully received in the male member.
  • a set screw can be threadably received through an aperture in the wall of the female member to be in alignment with the helical groove and helical recess when the male and female members are fully engaged.
  • the set screw is thus engagable with one or more of the balls located between the male and female members to clampingly engage the ball between those members and thus frictionally lock the members together.
  • the helical formation takes the form of a series of helically disposed groove shaped recesses 214 which together define a helical formation of complementary configuration to the helical groove in the female member (not shown) .
  • the balls as described may be substituted by any suitable regularly shaped element.
  • the element may be cylindrical in shape and the configuration of the helical formation be such that the elements are received such that their central axes are substantially radially directed with respect to the male member.
  • the helical groove provided in the female member has a substantially square shaped profile to snugly receive the exposed ends of the locking elements.
  • the locking elements may be located within the helical formation such that the central axes of the locking elements are substantially tangential. In that instance the profile of the helical formation and the helical groove will conform to the curved configuration of the cylindrical elements. It should be appreciated however, that other shapes (e.g. cubic shapes) of the locking elements may be utilised depending upon the nature of the circumstances.
  • each of the embodiments has been described as having the helical formation on the male member and the helical groove on the female member it is also possible for the helical formation to be located on the female member and the helical groove to be located on the male member if the circumstances so require or permit.
  • a coupling is provided which can withstand considerable impact and torsional forces but which, due to the relatively small contact area between the male member and female member provided by the locking element, is relatively easily disassembled.
  • the embodiment has particular advantage in the drilling industry to provide for the coupling of drilling components to drill strings and the like.
  • the embodiment also has application as a replacement for standard threaded connections which are subject to high loads such as impellers on large centrifugal pumps, propellers, or shafts and like components.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'organe de couplage décrit sert à fixer un élément mâle (11) de section transversale sensiblement circulaire à un élément femelle (12) de configuration complémentaire. L'un de ces éléments est pourvu d'une rainure hélicoïdale (13) qui, lors de l'engagement des éléments l'un dans l'autre présente une configuration opposée par rapport à une saillie hélicoïdale de forme correspondante (14) située sur l'autre élément. Plusieurs éléments de blocage (15) de configuration sensiblement complémentaire au profil de la rainure hélicoïdale (13) et de la saillie hélicoïdale (14) peuvent être reçus entre la saillie hélicoïdale (14) et la rainure hélicoïdale (13), lors de l'engagement des éléments mâle et femelle (11, 13) l'un dans l'autre.
PCT/AU1990/000113 1989-03-28 1990-03-20 Organe de couplage WO1990011455A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ3394 1989-03-28
AUPJ339489 1989-03-28

Publications (1)

Publication Number Publication Date
WO1990011455A1 true WO1990011455A1 (fr) 1990-10-04

Family

ID=3773808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1990/000113 WO1990011455A1 (fr) 1989-03-28 1990-03-20 Organe de couplage

Country Status (2)

Country Link
WO (1) WO1990011455A1 (fr)
ZA (1) ZA902348B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU696419B2 (en) * 1994-07-13 1998-09-10 Expertest Pty. Ltd. Quick connect coupling
WO2003036017A1 (fr) * 2001-10-22 2003-05-01 Weatherford/Lamb, Inc. Dispositif de blocage pour raccord filete
GB2396676A (en) * 2002-12-06 2004-06-30 Weatherford Lamb Wire lock expandable connection
US7017950B2 (en) 2002-09-25 2006-03-28 Weatherford/Lamb, Inc. Expandable connection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB264077A (en) * 1926-07-28 1927-01-13 James Cuthill Improvements in joints for connecting drill or fishing tools to drill rods and the like
AU2487430A (en) * 1930-01-29 1931-01-22 Scaffolding (great Britain ) Limited Improvements in or connected with means for connecting tubes together
US2150875A (en) * 1936-07-18 1939-03-14 Aircraft Screw Prod Co Method of connecting light metal alloy parts
GB1275032A (en) * 1970-03-31 1972-05-24 Heath & Sherwood Drilling Ltd Drill pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB264077A (en) * 1926-07-28 1927-01-13 James Cuthill Improvements in joints for connecting drill or fishing tools to drill rods and the like
AU2487430A (en) * 1930-01-29 1931-01-22 Scaffolding (great Britain ) Limited Improvements in or connected with means for connecting tubes together
US2150875A (en) * 1936-07-18 1939-03-14 Aircraft Screw Prod Co Method of connecting light metal alloy parts
AU221954A (en) * 1954-08-06 1955-11-13 Rip-Bits Limited Improvements in and relating to rock drills and detachable bits therefor
GB1275032A (en) * 1970-03-31 1972-05-24 Heath & Sherwood Drilling Ltd Drill pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Illustrated Dictionary of Mechanical Engineering", published 1984, by MARTINUS NIJHOFF, see page 56, figures 4.117 and 4.118. *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU696419B2 (en) * 1994-07-13 1998-09-10 Expertest Pty. Ltd. Quick connect coupling
WO2003036017A1 (fr) * 2001-10-22 2003-05-01 Weatherford/Lamb, Inc. Dispositif de blocage pour raccord filete
GB2392965A (en) * 2001-10-22 2004-03-17 Weatherford Lamb Locking arrangement for a threaded connector
GB2392965B (en) * 2001-10-22 2005-03-23 Weatherford Lamb Locking arrangement for a threaded connector
US6908121B2 (en) 2001-10-22 2005-06-21 Weatherford/Lamb, Inc. Locking arrangement for a threaded connector
AU2002336186B2 (en) * 2001-10-22 2008-01-24 Weatherford Technology Holdings, Llc Locking arrangement for a threaded connector
AU2002336186B8 (en) * 2001-10-22 2008-06-19 Weatherford Technology Holdings, Llc Locking arrangement for a threaded connector
US7017950B2 (en) 2002-09-25 2006-03-28 Weatherford/Lamb, Inc. Expandable connection
GB2396676A (en) * 2002-12-06 2004-06-30 Weatherford Lamb Wire lock expandable connection
GB2396676B (en) * 2002-12-06 2005-11-16 Weatherford Lamb Wire lock expandable connection
US6981547B2 (en) 2002-12-06 2006-01-03 Weatherford/Lamb, Inc. Wire lock expandable connection

Also Published As

Publication number Publication date
ZA902348B (en) 1991-03-27

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