WO2009111835A1 - Dispositif pour levage - Google Patents

Dispositif pour levage Download PDF

Info

Publication number
WO2009111835A1
WO2009111835A1 PCT/AU2009/000297 AU2009000297W WO2009111835A1 WO 2009111835 A1 WO2009111835 A1 WO 2009111835A1 AU 2009000297 W AU2009000297 W AU 2009000297W WO 2009111835 A1 WO2009111835 A1 WO 2009111835A1
Authority
WO
WIPO (PCT)
Prior art keywords
aperture
article
coupling device
expandable
lifted
Prior art date
Application number
PCT/AU2009/000297
Other languages
English (en)
Inventor
Brian Davies
Original Assignee
Brian Investments 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
Priority claimed from AU2008901266A external-priority patent/AU2008901266A0/en
Application filed by Brian Investments Pty Ltd filed Critical Brian Investments Pty Ltd
Priority to AU2009225250A priority Critical patent/AU2009225250A1/en
Publication of WO2009111835A1 publication Critical patent/WO2009111835A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • 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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/165—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with balls or rollers

Definitions

  • the present invention relates to a device for lifting articles.
  • the present invention relates to a device used for the lifting of articles such as wear plates .
  • Wear plates are used extensively in the mining industry for lining receptacles for transporting minerals. Wear plates are often thick and made from inherently hard material so as to be resistant to wearing caused by the repetitious nature of material being passed across the surface of the plate. Due to the weight of the wear plates, it is often extremely difficult to manually position replacement plates without the aid of a lifting device.
  • a coupling device for engagement with an article having an aperture of a certain size formed therein, said device comprising: a body having a first portion configured to pass through at least a portion of said aperture and a second portion coupled to said first portion,- an expandable portion coupled to said first portion so as to pass substantially through said aperture with said first portion, wherein said expandable portion is operable to expand so as to engage with said article thereby enabling said article to be lifted when said second portion is lifted.
  • the body comprises a loop for coupling to a lifting means.
  • the loop may be part of or connectable to the second portion of the body.
  • the body comprises an engaging surface that engages the article.
  • the engaging surface is too large to fully pass through the aperture.
  • the second portion of the body comprises the engaging surface .
  • the device comprises an activator for expanding the expandable portion.
  • the activator is positioned relative to the body so as to not pass through the aperture.
  • the expandable portion is contractible so as to contract, allowing the expandable portion to be withdrawn from the aperture.
  • the activator is arranged to contract the expandable portion.
  • the expandable portion may comprise a region internal to the body.
  • the activator may comprise a shank configured to be operatively associated with said expandable portion through said internal region.
  • the expandable portion may further comprise at least one engaging element .
  • at least one engaging element Preferably there are two or three engaging elements.
  • the activator may have an external thread that is configured to be engagable with a complimentary internal thread within the internal region of the body near the second end.
  • each engaging elements is spherical.
  • the internal region of the body may comprise a portion that is substantially uniform in cross-section and substantially concentric with a longitudinal axis of the body.
  • the region of uniform cross-section may extend from the second end of the body to the region internal of the first end of the body.
  • the internal region at a first portion of the body may configured so that the at least one engaging element is displaced in a direction substantially radial to the longitudinal axis so as to extend at least a portion of the or each engaging element outward of the body to engage the article to be lifted.
  • the at least a portion of the or each engaging element effectively protrudes beyond the extremity of the first portion of the body so as to engage or catch a portion of the article. The engagement inhibits the first portion of the body from passing back through the aperture so as to retain the first portion from exiting back through the aperture of the article, allowing the article to be lifted when the second portion of the body is lifted.
  • the first portion of said body may comprise a separate component that is configured to be engagable with the body.
  • the activator is operable so as to translate the shank portion through the internal region of the body in a direction substantially aligned with the longitudinal axis so as to engage at least one engaging element .
  • a coupling may be engaged to the second portion of the body so as to couple the body to a lifting device.
  • the lifting device may, for example, comprise a prime-mover operatively associated with a suspension means such as a cable and/or rope for engagement with the coupling for lifting.
  • the engaging surface is frustoconcially shaped.
  • the frustoconical shape of the engaging surface is substantially uniform in slope around the surface.
  • the angle of the slope is suitable for engagement with articles having a range of thicknesses proximal to the aperture, where the aperture of the article is a frustoconcially shaped hole.
  • the position of the first portion is movable relative to the position of the second portion.
  • a coupling device for engagement with an article having an aperture of a certain size formed therein, said device comprising: a body having a first portion configured to pass through at least a portion of said aperture; an expandable portion coupled to said body so as to pass substantially through said aperture with said first portion, wherein the expandable portion is operable to expand, wherein, when said expandable portion is expanded so said body is retained within said aperture by engagement of the expanded expandable portion with said article so that a second portion of the body may be lifted thereby lifting the article.
  • a method for lifting an article having an aperture of a certain size formed therein comprising the steps of : providing a coupling device as hereinbefore described; passing said first portion of said coupling device substantially through at least a portion of said aperture; expanding said expanding portion so as to be engagable with said article so that said article may be lifted from said second portion of said body.
  • a method of lifting an article having an aperture of a certain size formed therein comprising: passing a first portion of a body of a coupling device through at least a portion of said aperture so that an expandable portion of said first portion passes substantially through said aperture; expanding said expandable portion so as to engage with said article thereby enabling said article to be lifted when a second portion of the body is lifted.
  • Figure 1 shows one embodiment of a coupling device in accordance with the present invention
  • Figure 2 shows a partial cross-section view of one coupling device shown in Figure 1 when in an expanded condition
  • Figure 3 shows a partial cross-section view of the coupling device shown in Figures 1 and 2 when in a contracted condition
  • Figure 4 shows a front elevation view of a head portion in accordance with the embodiments shown in Figures 1 to 3 ;
  • Figure 5 shows a front elevation view of a handle portion in accordance with the embodiment shown in Figures 1 to 3 ;
  • Figure 6 shows a front elevation view of a body portion in accordance with the embodiment shown in Figures 1 to 3 ; and Figure 7 shows an embodiment the coupling device of Figure 1 used to lift an alternative form of article.
  • the coupling device 2 for engaging an article 4 that is to be lifted.
  • the coupling device 2 comprises a body 6 having a first portion 8 configured to pass through at least a portion of an aperture 10 formed within the article 4.
  • the aperture may be a through hole as in the case of Figure 1 or it could be a blind hole of suitable shape to receive the first portion 8 as in the case of Figure 7.
  • the device 2 further comprises an expandable portion 12 coupled to the body 6 so as to pass substantially through the aperture 10 with the first portion 8.
  • the expandable portion 12 is operable to expand so as to allow the first portion 8 to engage with the article 4 thereby enabling the article to be lifted at a second portion 14 of the body 6 when the second portion 14 is to be lifted.
  • the expandable portion engages a surface surrounding an opening to the aperture 10.
  • the embodiment of the coupling device 2 is presented with the article 4 omitted whereby the expandable portion 12 of the coupling device is shown in an expanded condition 13.
  • the expandable portion 12 comprises two spherically shaped engaging elements 16a, 16b that are movable within a region of space 18 that is internal of the first portion 8 of the body 6.
  • the space 18 is in the form of a channel through the first portion 8. The channel extends transverse to a longitudinal exit 20 of body 6.
  • the region of space 18 of the first portion 8 is configured so that engaging elements 16a, 16b are movable so that at least a portion of each of the engaging elements 16a, 16b is able to project outward from the first portion 8.
  • both engaging elements 16a, 16b are movable within the region of space 18 in a direction transverse to the longitudinal axis 20 of the body 6 (and preferably substantially radially relative to the longitudinal axis of the body 6) .
  • the region of space 18 is configured so that each engaging element 16a, 16b may project, when moved outwardmost, a portion thereof beyond the extremity of the first portion 8 of the body 6.
  • the region of space 18 comprises an channel 35 configured to pass through the first portion 8 at an orientation that is substantially orthogonal to the longitudinal axis 20.
  • the outward facing surface of the first portion 8 is configured with shaped side portions 36a, 36b substantially centred about an axis 38 (shown in Figure 4) of channel 35.
  • the shaped surfaces 36a, 36b are appropriately shaped in accordance with the geometry of the engaging elements 16a, 16b to be able to retain said engaging elements 16a, 16b, yet allow a sufficient portion thereof to protrude outward of the first portion 8 to engage the article 4.
  • each engagable element 16a, 16b is able to engage a lowermost surface 22 of the article 4 so as to inhibit the first portion 8 of the body 6 from retreating backward through the aperture 10 of the article 4. Accordingly, the article 4 may be then lifted from the body 6, or any portion thereof, using any known lifting means in the art.
  • any lifting means or like prime mover may be connected to a coupling, such as a lifting bar 24, that may itself be coupled to the second portion 14 of the body 6.
  • the lifting bar 24 preferably has an eye hole 90 or loop for receiving a hook or the like at the end of a cable or rope that is able to be lifted or lowered by the prime-mover.
  • the first portion 12 of the body 6 further comprises a stop 64 having a taper region 9 near the expandable portion 12 comprising a frustoconical shaped outward facing surface.
  • the external surface adjacent the expandable portion 12 comprises a cross-section in which the diameter linearly increases outward as a function of distance towards the second portion 14 of the body 6.
  • the width of the lowermost region 7 (narrowest portion) of the taper region 9 is such that it does not exceed a dimension that is commensurate with the widest offering of the expandable portion 12 when in an expanded condition 13.
  • the increase in the cross-sectional diameter continues and terminates at a widermost region 70 (widest part) of the stop 64. The effect of the increase in diameter is to prevent the coupling 2 from being able to completely pass through the aperture 10.
  • the aperture 10 within the article 4 may be similarly configured with an internal facing surface 11 that is complementary to the geometry of the taper region 9 so as the external surface of the taper region 9 , and the internal surface 11 of the aperture 10, may contact or engage so as to locate the coupling 2 within the aperture 10.
  • the complementary nature of the mutual engagement of surfaces 11, 9 provides for increased contact surface area that would not otherwise be possible with a conventional vertically formed aperture.
  • the frustoconical nature of the taper region 9 allows the coupling device 2 to snugly engage with an aperture comprising geometrically shaped internal surfacing complimentary to that of the taper region 9, i.e., the angles of the taper region 9 and those of the internal surface 11 of the aperture 10 are preferably substantially the same.
  • the engagement of the frustoconical shaped surfaces of the taper region and the aperture 10 are such that the coupling device 2 is effectively clamped into position within the aperture 10.
  • the embodiment of the stop 64 described herein will allow the coupling device 2 to work with articles of varying thicknesses and having apertures configured with surfaces 11 configured to be complementary to the surface of the taper region 9.
  • the engaging surfaces are of substantially the same slope or gradient, increased surface contact is achieved between the stop 64 and the inner surface 11 of the aperture which allows for a superior clamping effect.
  • the taper region 9 as described herein may comprise a non- linear variation in cross-section that achieves the same objectives.
  • the coupling device 2 further comprises an activator 26 configured to be operable with the expandable portion 12.
  • the activator 26 comprises a handle portion 28 disposed at one end and an engaging portion 30 such as, for example, shank portion 33 extending from the handle portion 28.
  • the engaging portion 30 is configured to be movable along the longitudinal axis 20 within a region of space 34 internal of the body 6.
  • the engaging portion 30 further comprises an external thread 48 (also shown in Figure 5) threadingIy engagable with thread 50 (shown in Figure 4) formed on the internal facing surface of the region of space 34 at the second portion 14 of the body 6.
  • the shank 33 further comprises a tip portion 31 that is brought into contact with an engagement element 17 when the activator 26 is translated to operate the expandable portion 12 into the expanded condition 13 shown in Figure 2.
  • this translation may be caused by winding the handle portion 28 in a clockwise direction in accordance with the engaging threads .
  • the translation will force the engagement element to wedge between the engaging elements 16a and 16b. This interaction imparts a force on each of the engaging elements 16a, 16b which urges them apart.
  • the engagement element 17 does not need to be a separate component and may be formed integral with the tip portion 31 of the shank 33 with an appropriately shaped tip portion (for example conically shaped) to motivate the engaging elements 16a, 16b outward. It will be appreciated that wedge shaped elements or other suitably shaped elements may be used instead of the spherical shape of elements 16a, 16b or 17.
  • Figure 3 shows the expandable portion in a contracted condition 19 whereby engaging elements 16a, 16b are retained within the region of space 18 within the first portion 12 of the body 6.
  • the engaging elements 16a, 16b may be released from the expanded condition 13 by a reverse motion to that previously described whereby an anti-clockwise actuation of the activator 26 causes the engaging portion 30 to move away from the expandable portion 12.
  • the applied force to engagement element 17 is removed. Accordingly, engagement element 17 becomes free to move allowing engaging elements 16a, 16b to move inward from the extremity of the first portion 8 of the body 6 and cease any engagement with article 4.
  • the coupling device 2 is then removable from the aperture 10.
  • the second portion 6 comprises an external thread 40 at an end of the body 6 opposite to the first portion 8 and configured so as to engage a sleeve portion 44 (shown in Figure 6) .
  • sleeve portion 44 comprises a circular (cross- sectioned) cylinder having a complementary internal thread 46 configured to engage thread 40 of the body 6.
  • the sleeve portion 44 is thus threadingly movable relative to the body 2. The movement of the sleeve portion 44 allows clamping of the lifting bar 24 against surface 60 in co-operation with a rear surface 62 of the stop 64.
  • stop 64 and/or the first portion 8 may be configured to each be threadingly engageable with the body 6 so as to account for articles of varying thickness and/or to vary their relative position with respect to the body 6.
  • the coupling device 2 is shown in use for lifting an alternative type of article 4 which comprises aperture 10 in the form of a blind hole.
  • the aperture 10 comprises internal facing surface 11 similar to that described in relation to Figure 1 and a cavity 94 for receiving the first portion 8 of the body of the coupling device 2.
  • a constriction formed in part by surface 92.
  • surface 92 is a flat annulus shape, parallel with surface 22, but it need not be this shape. It can be for example curved.
  • the constriction should be such that the expanding portion 12 can engage against it when in the expanded configuration so as to prevent the body of the coupling device 2 from being withdrawn from the aperture 10.
  • the surface 92 is arranged in relation the inner surface 11 and the expanding portion 12 is arranged in relation to surface 9 of stop 64 so that when the expanding portion is expanded a clamping force is applied to surfaces 11 and 92 by surface 9 and the surface of the expanding portion 12.
  • the article 14 may be for example a wear plate with the aperture comprising a conical hole, such as that described in WO 2006060877.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Clamps And Clips (AREA)

Abstract

La présente invention concerne un dispositif de couplage destiné à être en prise avec un article. Ce dispositif comprend un corps dont une première partie est configurée pour traverser au moins une partie d'un orifice formé à l'intérieur de l'article. Le dispositif comprend également une partie expansible couplée au corps de façon à traverser sensiblement l'orifice (10) au moyen de la première partie. En manœuvrant la partie expansible on en provoque l'expansion de façon à permettre à la première partie à venir en prise avec l'article, ce qui permet de lever l'article par une deuxième partie du corps quand la deuxième partie doit être levée.
PCT/AU2009/000297 2008-03-14 2009-03-13 Dispositif pour levage WO2009111835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2009225250A AU2009225250A1 (en) 2008-03-14 2009-03-13 A device for lifting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008901266 2008-03-14
AU2008901266A AU2008901266A0 (en) 2008-03-14 A Device for Lifting

Publications (1)

Publication Number Publication Date
WO2009111835A1 true WO2009111835A1 (fr) 2009-09-17

Family

ID=41064672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2009/000297 WO2009111835A1 (fr) 2008-03-14 2009-03-13 Dispositif pour levage

Country Status (2)

Country Link
AU (1) AU2009225250A1 (fr)
WO (1) WO2009111835A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011101096A1 (de) * 2011-05-10 2012-11-15 Ludwig Demmeler Bolzen und Spannsystem mit Bolzen
WO2016042212A1 (fr) * 2014-09-18 2016-03-24 Wärtsilä Finland Oy Bâti de base pour soutenir et lever un moteur à combustion interne à piston
DE202022105643U1 (de) 2021-10-21 2022-11-04 Industrias Piqueras Sa Abnehmbarer Fixierungsbolzen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680906A (en) * 1970-10-12 1972-08-01 Programmed & Remote Syst Corp Removable eye bolt for lifting heavy objects
US4863205A (en) * 1987-09-04 1989-09-05 Jergens, Incorporated Load ring assembly
US5318284A (en) * 1991-11-15 1994-06-07 Demmeler Maschinenbau Gmbh & Co. Kg Table, particularly orienting and welding table
FR2795462A1 (fr) * 1999-06-25 2000-12-29 Remy Kirchdoerffer Dispositif de solidarisation et de blocage dans un renfoncement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680906A (en) * 1970-10-12 1972-08-01 Programmed & Remote Syst Corp Removable eye bolt for lifting heavy objects
US4863205A (en) * 1987-09-04 1989-09-05 Jergens, Incorporated Load ring assembly
US5318284A (en) * 1991-11-15 1994-06-07 Demmeler Maschinenbau Gmbh & Co. Kg Table, particularly orienting and welding table
FR2795462A1 (fr) * 1999-06-25 2000-12-29 Remy Kirchdoerffer Dispositif de solidarisation et de blocage dans un renfoncement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011101096A1 (de) * 2011-05-10 2012-11-15 Ludwig Demmeler Bolzen und Spannsystem mit Bolzen
US9303674B2 (en) 2011-05-10 2016-04-05 Ludwig Demmeler Bolt and clamping system using bolts
WO2016042212A1 (fr) * 2014-09-18 2016-03-24 Wärtsilä Finland Oy Bâti de base pour soutenir et lever un moteur à combustion interne à piston
DE202022105643U1 (de) 2021-10-21 2022-11-04 Industrias Piqueras Sa Abnehmbarer Fixierungsbolzen

Also Published As

Publication number Publication date
AU2009225250A1 (en) 2009-09-17

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