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WO1992014066A1 - Systeme de raccordement - Google Patents

Systeme de raccordement Download PDF

Info

Publication number
WO1992014066A1
WO1992014066A1 PCT/AU1992/000044 AU9200044W WO9214066A1 WO 1992014066 A1 WO1992014066 A1 WO 1992014066A1 AU 9200044 W AU9200044 W AU 9200044W WO 9214066 A1 WO9214066 A1 WO 9214066A1
Authority
WO
WIPO (PCT)
Prior art keywords
curved
receptacle
protrusion
members
joining
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.)
Ceased
Application number
PCT/AU1992/000044
Other languages
English (en)
Inventor
Darrell William Geatches
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.)
MINING CONCEPTS Pty Ltd
Original Assignee
MINING CONCEPTS 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 MINING CONCEPTS Pty Ltd filed Critical MINING CONCEPTS Pty Ltd
Priority to AU12270/92A priority Critical patent/AU669476B2/en
Publication of WO1992014066A1 publication Critical patent/WO1992014066A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • F16B7/0413—Clamping or clipping connections for rods or tubes being coaxial for tubes using the innerside thereof

Definitions

  • the present invention relates to a system for joining two members and in particular discloses an arrangement that permits transmission of longitudinal and twisting forces between the members.
  • a system for joining a first member and a second member comprising: a female receptacle in said first member having a (first) curved inner surface; and a male protrusion extending from said second member and having a first curved outer surface complementing said first curved inner surface, and a second curved outer surface opposite said first curved surface, said second curved outer surface being sufficiently curved so as to permit insertion of said protrusion into said receptacle for joining said members.
  • the members are intended for longitudinal alignment and connection and preferably are connecting rods of a drilling device.
  • FIG. 1 is a perspective view of a first embodiment showing the two joining members
  • Fig. 2 is a perspective view of second embodiment showing the two joining members
  • Fig. 3 is a transverse cross-section of the two joined members of the second embodiment
  • Fig. 4 is a longitudinal end view of the male joining member of Fig. 2.
  • a first member .1 and a second member 2 are shown arranged for longitudinal joining.
  • the members 1 and 2 in this embodiment are of a square cross-sectional shape but can have any cross-sectional shape as determined by the specific application.
  • the first member 1 includes a female receptacle 3 of substantially cubic shape.
  • the receptacle 3 is distanced from the longitudinal wall faces 4 of the member 1 by an abutment surface 5 arranged at the end of the member 1.
  • the receptacle 3 includes a curved inner surface 6, concave in shape, that extends from the opening of the receptacle 3 adjacent the abutment surface 5 to a location 15 short of an inner rear wall 7 thereof.
  • the second member 2 includes a substantially elongate male protrusion 8 adapted for insertion into the female receptacle 3.
  • the protrusion 8 is generally quasi-cubic and substantially corresponds to the inner shape of the receptacle 3.
  • the protrusion 8 includes a first curved outer surface 9, convex in shape that complements the curved inner surface 6 of the receptacle 3.
  • the protrusion 8 also includes a second curved surface 10, arranged opposite the first curved surface 9 that permits entry of the protrusion 8 into the receptacle 3.
  • the protrusion 8 is distanced from the longitudinal faces 11 of the member 2 by an abutment surface 12 (illustrated in phantom) that corresponds, and when the members 1 and 2 are joined, abuts with the abutment surface 5 of the first member 1.
  • the protrusion 8 also includes a front face 13 that extends between the curved surfaces 9 and 10 and is adapted to abut the rear wall 7 of the receptacle 3.
  • the joining of the members 1 and 2 can now be described.
  • the members 1 and 2 are arranged so that the curved surfaces 6 and 9 are adjacent.
  • the leading edge 14 adjacent the front face 13 and curved surface 9, is then, without longitudinal alignment between the members 1 and 2, inserted into the recess 3 to abut the surface 6.
  • the shape of the second curved surface 10 permits full insertion of the protrusion 8 into the receptacle 3 through urging of the surface 10 upon a surface 16 opposite the surface 6 within the receptacle 3.
  • the protrusion 8 is then pushed into the receptacle 3 by sliding the complementary surfaces 6 and 9 across each other. This sliding motion brings the members 1 and 2 into longitudinal alignment.
  • the front face 13 abuts the rear wall 7 and the abutment surfaces 5 and 12 are in contact.
  • This joining arrangement has a number of advantages. Firstly, any longitudinal compression between the members 1 and 2 is absorbed by the abutting surfaces 7 and 13, and 5 and 12. These surfaces define almost all the cross-sectional area of the members 1 and 2, with the exception of that area lost through curved surface 10.
  • the longitudinal compressive strength of the members is not substantially reduced within the join.
  • the join retains much longitudinal tensile strength through friction between the complementary curved surfaces 6 and 9 and the requirement for longitudinal misalignment for disengagement.
  • the arrangement has substantial torsional strength as provided by the abutting side walls of the receptacle 3 and protrusion 8.
  • Fig. 1 can be used for the joining of any two members at any orientation, however, it is much preferred that the members have preferably a longitudinal alignment when joined.
  • F1gs. 2, 3 and 4 Is specifically adapted for drilling operations in mines.
  • Fig. 2 shows a male connecting piece 20 of a drilling connecting rod 21 and a female connecting piece 23 of a rod 22.
  • the rods 21,22 are of hexagonal longitudinal cross-section as better seen in Fig. 4 and include a feedwater line or air passage 22 passing along their longitudinal axis for the supply of cooling and flushing feedwater or air to a drilling bit (not illustrated).
  • the connecting pieces 20 and 23 are joined to their respective rods 21 and 22 at recesses 40,39 formed therebetween, by threaded connections 38 and 37 respectively.
  • the connecting pieces 20,23 can be integrally formed with their respective rods 21,22.
  • welded connections can be used, particularly to increase the strength of the threaded connections 37,38.
  • a single connecting rod has a male connecting piece 20 at one end and a female connecting piece 23 at the other.
  • the male connecting piece 20 is formed with a hexagonally shaped abutment surface 35 from the centre of which extends a elongate male protrusion 50 having opposite curved outer surfaces 26 and 34.
  • the protrusion 50 substantially corresponds in shape to an extent to the hexagonal shape of the rod 21 of which two side faces 30 and 31, adjacent the curved surface 26, correspond.
  • the curved surface 34 at the surface 35, substantially corresponds to a portion of a hexagon, but, as it extends towards a front face 32 of the protrusion 50, the surface 34 obtains a bell-shaped profile. This is best seen in Fig. 4. This shaping acts to increase the contact surface area between the pieces 20 and 23 when joined.
  • the male connecting piece 20 has a channel or bore 41 which aligns with the feedwater line 22 of the rod 21 at the connection 38.
  • the channel 41 extends, substantially centrally through the connecting piece 20 and ends in an aperture 42, seen in Fig. 2.
  • the channel 41 is slightly Inclined, when compared with the feedwater line 22, as best seen in Fig. 3.
  • the female connecting piece 23 includes a surface 36 arranged to abut with the surface 35.
  • a receptacle 27 is provided to receive the male protrusion 50 of the piece 20 and has a curved convex inner surface 25 configured to meet the concave surface 26.
  • the receptacle 27 includes an additional curved inner surface 33 which is configured to meet the surface 34, thereby increasing contact between the two pieces 20 and 23 as alluded to above.
  • the receptacle 27 has a rear wall 28 of shape similar to the front face 32 but of slightly larger size about the curved surface 33. This creates a small vacant space 43, seen in Fig. 3, which provides for ease of insertion and extraction, in the same manner as the first embodiment, of the piece 20 into and out of the piece 23.
  • the female connecting piece 23 So as to permit the communication of feedwater between the pieces 20,23, the female connecting piece 23 has a water channel or bore 44 configured to meet with the aperture 42.
  • the channel 44 like to channel 41 is also inclined, so as to meet with the feedwater line 22 of the rod 24.
  • a rubber grommet 45 seen in Fig. 2, provides sealing between the pieces 20 and 23 and is arranged to be seated within a suitably shaped recess 46, which defines an aperture, at the end of the channel 44.
  • the front face 32 engages the grommet 45, forcing it- into the recess 46 such that the face 32 also engages the rear wall.
  • annular washers (not illustrated) can also be used to ensure a water tight seal at the threaded connections 37 and 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

On décrit un système de raccordement selon lequel un premier élément (1) peut être raccordé à un second élément (2). Un logement femelle (3) est ménagé à l'intérieur du premier élément (1), ce logement comprenant au moins une surface interne incurvée (6). Un élément en saillie (8) s'étend à partir du second élément (2), l'élément en saillie étant conçu pour être introduit dans le logement (3), et comprenant une première surface externe incurvée (9) complémentaire à la surface interne incurvée (6), ainsi qu'une seconde surface externe incurvée (10) située à l'opposé de la première. L'engagement réciproque des surfaces (6) et (9) permet d'établir un raccordement longitudinal entre les éléments (1) et (2), la courbure de la surface (10) rendant plus aisée l'introduction de l'élément en saillie (8) dans le logement (3).
PCT/AU1992/000044 1991-02-07 1992-02-06 Systeme de raccordement Ceased WO1992014066A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12270/92A AU669476B2 (en) 1991-02-07 1992-02-06 A joining system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK4516 1991-02-07
AUPK451691 1991-02-07

Publications (1)

Publication Number Publication Date
WO1992014066A1 true WO1992014066A1 (fr) 1992-08-20

Family

ID=3775216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000044 Ceased WO1992014066A1 (fr) 1991-02-07 1992-02-06 Systeme de raccordement

Country Status (3)

Country Link
NZ (1) NZ241550A (fr)
WO (1) WO1992014066A1 (fr)
ZA (1) ZA92825B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000017528A1 (fr) * 1998-09-18 2000-03-30 Nardi S.P.A. Raccords pour structures pliables
WO2006107385A3 (fr) * 2005-03-30 2006-12-21 Stork Townsend Inc Dispositif d'epiautage ouvert
RU2318141C2 (ru) * 1997-03-07 2008-02-27 Фармациа Энд Апджон Аб Соединительная деталь (варианты) и способ соединения элементов

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321167A (en) * 1964-06-05 1967-05-23 Doerr Hermann Mounting of shelf boards, receptacles, cabinets, and the like
GB1198447A (en) * 1966-09-07 1970-07-15 Itw Ltd Releasable Joint
CA975525A (en) * 1971-11-30 1975-10-07 Elliott Brothers (London) Limited Fastening arrangements
GB2141200A (en) * 1983-06-09 1984-12-12 Hans Ring A mounting arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321167A (en) * 1964-06-05 1967-05-23 Doerr Hermann Mounting of shelf boards, receptacles, cabinets, and the like
GB1198447A (en) * 1966-09-07 1970-07-15 Itw Ltd Releasable Joint
CA975525A (en) * 1971-11-30 1975-10-07 Elliott Brothers (London) Limited Fastening arrangements
GB2141200A (en) * 1983-06-09 1984-12-12 Hans Ring A mounting arrangement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2318141C2 (ru) * 1997-03-07 2008-02-27 Фармациа Энд Апджон Аб Соединительная деталь (варианты) и способ соединения элементов
RU2318141C9 (ru) * 1997-03-07 2008-05-27 Фармациа Энд Апджон Аб Соединительная деталь (варианты) и способ соединения элементов
WO2000017528A1 (fr) * 1998-09-18 2000-03-30 Nardi S.P.A. Raccords pour structures pliables
WO2006107385A3 (fr) * 2005-03-30 2006-12-21 Stork Townsend Inc Dispositif d'epiautage ouvert
US7241213B2 (en) 2005-03-30 2007-07-10 Stork Townsend, Inc. Open top meat skinning device
US7582007B2 (en) 2005-03-30 2009-09-01 Stork Townsend Inc. Open top meat skinning device

Also Published As

Publication number Publication date
NZ241550A (en) 1995-02-24
ZA92825B (en) 1992-11-25

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