EP2823189B1 - Joint d'accouplement - Google Patents

Joint d'accouplement Download PDF

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Publication number
EP2823189B1
EP2823189B1 EP13757393.7A EP13757393A EP2823189B1 EP 2823189 B1 EP2823189 B1 EP 2823189B1 EP 13757393 A EP13757393 A EP 13757393A EP 2823189 B1 EP2823189 B1 EP 2823189B1
Authority
EP
European Patent Office
Prior art keywords
coupling joint
socket
stud head
shank
joint according
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.)
Active
Application number
EP13757393.7A
Other languages
German (de)
English (en)
Other versions
EP2823189A1 (fr
EP2823189A4 (fr
Inventor
Gan Ting Tee
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.)
IPH Equipment Sdn Bhd
Original Assignee
IPH Equipment Sdn Bhd
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.)
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Publication date
Application filed by IPH Equipment Sdn Bhd filed Critical IPH Equipment Sdn Bhd
Publication of EP2823189A1 publication Critical patent/EP2823189A1/fr
Publication of EP2823189A4 publication Critical patent/EP2823189A4/fr
Application granted granted Critical
Publication of EP2823189B1 publication Critical patent/EP2823189B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers

Definitions

  • This invention relates to a coupling joint that is connected to a piston rod of a piling hammer.
  • this invention relates to a coupling joint that reduces a potential of piston rod damage by permitting less movement of the coupling joint.
  • Existing joint assemblies for providing rotational movement of structures typically comprise a ball and socket mechanism, which is formed by a ball structure and a socket structure.
  • the assembly permits rotary movement in all directions through the movement of the ball in the socket.
  • the flexibility of the joint assembly to rotate in all directions is undesirable for heavy equipment such as piling machine where impact or shock exerted externally to the structures may destruct the joint assembly and its connected piston rod.
  • the joint system comprises a studded joint member having a ball-shaped head and an internal socket for the ball-shaped head. While the prior art focused on the moulding method of the studded joint member, it does not explore a shape or innovative technique to prevent joint breakage or failure.
  • the mechanics of a conventional spherical ball coupling joint allows the stud to rotate either in one direction or in the multiple directions.
  • the piling hammer which is extremely heavy, strikes onto a pile to drive the pile into the ground. Impact force is tremendous when the piling hammer falls through a distance of the piling rig.
  • a high possibility of longitudinal tensile stresses may be set up in the pile hammer by an elastic shock waves travelling up and down the pile when subjected to impact or shock by the pile hammer.
  • the elastic shock waves is able to be transmitted to connected parts such as the piston rod and tie rods. In such conditions, failure of the piston rod is highly possible due to the longitudinal tensile stresses acting on the pile hammer.
  • the primary object of the present invention is to construct a coupling joint that can greatly reduce wear and breakage when subjected to impact or shock.
  • Another object of the present invention is to provide a coupling joint that is highly suitable to be used to extend life of a pile hammer while transmit maximum striking force to a pile. Possibility of breakdowns and non-productive downtimes can be reduced.
  • a further object of the present invention is to provide a coupling joint that ensures suitable movement of connected components thus reducing probable destruction or breakage of the joint.
  • the preferred embodiment of the present invention describes a coupling joint for reducing mechanical wear comprising a stud capable to tilt when subjected to impact comprising a cylindrical stud head comprising an upper rounded end, a lower rounded end and a cavity within the cylindrical stud head; and a shank having an elongated cylindrical body with an upper portion and a lower portion , a junction between the upper portion and the lower portion having a longitudinal curvature, the lower portion being encapsulated within the cavity of the cylindrical stud head; and a socket having a centre opening adapted to lock the cylindrical stud head in place within an inner surface of socket, leaving a gap between the junction of the shank and the centre opening of the socket, allowing movement of the upper rounded end and lower rounded end of the cylindrical stud head with the inner surface of the socket.
  • the coupling joint further comprising a horizontal feather key engaged to a bottom surface of the lower portion to prevent rotation about a vertical axis of the shank.
  • Another preferred embodiment of the present invention discloses that the coupling joint further comprising a piling hammer connected to the coupling joint.
  • the upper portion of the shank is connected to a piston rod.
  • the bottom surface of the shank comprises a horizontal slot to receive the horizontal feather key.
  • Still another embodiment of the present invention is that the horizontal feather key comprises a shock absorbing member underneath it.
  • shock absorbing member is made of an elastomeric material.
  • a further embodiment of the present invention discloses that the socket comprises an upper portion and a lower portion.
  • a particular embodiment of the present invention discloses that the upper portion of the socket is configured to wrap around the upper rounded end of the cylindrical stud head.
  • Another embodiment of the present invention discloses that the lower portion of the socket is configured to wrap around the lower rounded end of the cylindrical stud head.
  • the present invention discloses a coupling joint that is connected to a piling hammer.
  • the present invention relates to a coupling joint that reduces a potential of piston rod damage by permitting lesser movement of the coupling joint.
  • Figure 1 shows a cross sectional view of a coupling joint that is connected to a piling hammer (121) as described in accordance to the preferred embodiments of the present invention.
  • the coupling joint as described in the preferred embodiments of the present invention can be used in countless applications, wherever minimal rotational motion is desired for reducing a potential of damage to connected parts.
  • the coupling joint can be used on camera stands or cylinder joints.
  • the coupling joint comprising a stud capable to tilt when subjected to impact comprising a cylindrical stud head (101) comprising an upper rounded end (103), a lower rounded end (105) and a cavity within the cylindrical stud head (101); and a shank (107) having an elongated cylindrical body with an upper portion (107a) and a lower portion (107b), a junction (107c) between the upper portion (107a) and the lower portion (107b) having a longitudinal curvature, the lower portion (107b) being encapsulated within the cavity of the cylindrical stud head (101); and a socket (109) having a centre opening (113) adapted to lock the cylindrical stud head (101) in place within an inner surface of socket (109), leaving a gap (111) between the junction (107c) of the shank (107) and the centre opening (113) of the socket (109), allowing movement of the upper
  • the cylindrical stud head (101) comprises the upper rounded end (103), the lower rounded end (105) as well as the cavity adapted to receive the lower portion of the shank (107b).
  • the rounded ends enable a slight angular movement of the stud in the socket (109).
  • the inner surface of the socket (109) correspond to be in contact with the rounded ends of the cylindrical stud head (101).
  • the coupling joint further comprising a horizontal feather key (115) engaged to a bottom surface (117) of the lower portion (107b) to prevent rotation about a vertical axis of the shank (107).
  • the bottom surface (117) of the shank (107) is configured to have a horizontal slot to receive the horizontal feather key (115).
  • the key (115) is preferred to be screwed to the shank (107) to fix it firmly as well as to enable easy disassembly when disengaging it during parts maintenance.
  • the junction (107c) is formed between the upper portion of the shank (107a) and the lower portion of the shank (107b).
  • the junction (107c) is a longitudinal curvature around the shank (107).
  • the gap between the junction (107c) and the centre opening (113) of the socket (109), as well as the rounded ends of the stud head (101), allow the stud head to be movable to an angle ranging from -2 degrees to 2 degrees in relative to the vertical axis of the stud head.
  • the stud head is movable to an angle of -1.1 degrees to 1.1 degrees in relative to its vertical axis, as shown in Figure 3 .
  • the coupling joint further comprising a piling hammer (121) connected to the coupling joint.
  • the coupling joint pivotally connects to a piling hammer (121) by a plurality of tie rods (125) and washers (123).
  • the upper portion (107a) of the shank (107) is firmly connected to a piston rod.
  • the piston rod functions to move the piling hammer (121) during operation.
  • the piling hammer (121) is adapted to strike against an anvil or a pile cap.
  • the horizontal feather key (115) comprises a shock absorbing member (119) underneath it.
  • Shock is a major cause of damage and failure with mechanical device.
  • the shock absorbing member (119) helps energy from the impact to be transferred from the piling hammer (121) directly into the material (119) so the coupling joint is not damaged, particularly the stud.
  • the shock absorbing member (119) is preferred to be placed underneath the feather key (115) as it absorb impact or vibration imparted to the coupling joint without transmitting them to other parts, particularly the shank (107).
  • impact or shock can be reduced and potential of joint or piston rod damaged is consequently reduced.
  • the shock absorbing member (119) is made of an elastomeric material.
  • the elastomeric material can be made of any material that resumes its original shape when a deforming force is removed.
  • the elastomeric material can be rubber, neoprene, silicone and other elastic polymers.
  • the shock absorbing member (119) is made of polyurethane due to its high shock absorption ability and durability.
  • the socket (109) comprises an upper portion (109a) and a lower portion (109b).
  • the upper portion of the socket (109a) is configured to wrap around the upper rounded end (103) of the cylindrical stud head (101).
  • the lower portion of the socket (109b) is configured to wrap around the lower rounded end (105) of the cylindrical stud head (101).
  • the upper portion of the socket (109a) is connected to the lower portion of the socket (109b) by tie rods or bolts and nuts.
  • the centre opening of the socket (113) is preferred to curve outwards in correspond to the junction (107c) of the shank (107).
  • the upper portion of the socket (109a) having the inner surface is also configured to hold the cylindrical stud head (101), preventing the stud to disengage from the socket (109).
  • the centre opening (113) is tapered upwardly and outwardly, beginning with a diameter that is smaller than a diameter of the cylindrical stud head (101).
  • suitable lubricant or grease may be applied to the inner surface of the socket (109) for frictionless movement of the stud.
  • Assembly of the coupling joint is preferred to be accomplished by initially engaging the lower portion (107b) of the shank (107) to the cylindrical stud head (101).
  • the shock absorbing member (119) is preferred to be inserted below the feather key (113) before engaging the lower portion (107b) to the stud head (101).
  • the stud having engaged stud head (101) and shank (107) is inserted into the lower portion (109b) of the socket (109), which is configured to have the inner surface to receive the stud head (101).
  • the upper portion (109a) of the socket (109) is then fixed firmly on top of the lower portion (109b).
  • the coupling joint connects the piling hammer (121) to the piston rod, prevents ample movement of the stud while reduce mechanical damage or wear of the coupling joint when subjected to impact or shock. It also reduces complication during assembly so that components or parts can be firmly assembled easily and in a short time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Claims (10)

  1. Joint d'accouplement pour réduire l'usure mécanique comprenant
    un goujon capable de basculer lorsqu'il est soumis à un impact comprenant
    une tête de goujon cylindrique (101) comprenant une extrémité arrondie supérieure (103), une extrémité arrondie inférieure (105) et une cavité à l'intérieur de la tête de goujon cylindrique (101) ; et
    une tige (107) ayant un corps cylindrique allongé avec une partie supérieure (107a) et une partie inférieure (107b), une jonction (107c) entre la partie supérieure (107a) et la partie inférieure (107b) ayant une courbure longitudinale, la partie inférieure (107b) étant encapsulée à l'intérieur de la cavité de la tête de goujon cylindrique (101) ; et
    une douille (109) ayant une ouverture centrale (113) adaptée pour bloquer la tête de goujon cylindrique (101) en place à l'intérieur d'une surface intérieure de douille (109), laissant un espace (111) entre la jonction (107c) de la tige (107) et l'ouverture centrale (113) de la douille (109), permettant un mouvement de l'extrémité arrondie supérieure (103) et de l'extrémité arrondie inférieure (105) de la tête de goujon cylindrique (101) avec la surface intérieure de la douille (109).
  2. Joint d'accouplement selon la revendication 1 comprenant en outre une clavette horizontale (115) venant en prise avec une surface inférieure (117) de la partie inférieure (107b) pour empêcher la rotation autour d'un axe vertical de la tige (107).
  3. Joint d'accouplement selon la revendication 1 comprenant en outre un mouton de battage (121) relié au joint d'accouplement.
  4. Joint d'accouplement selon la revendication 1, dans lequel la partie supérieure (107a) de la tige (107) est reliée à une tige de piston.
  5. Joint d'accouplement selon la revendication 2, dans lequel la surface inférieure (117) de la tige (107) comprend une fente horizontale pour recevoir la clavette horizontale (115).
  6. Joint d'accouplement selon la revendication 2, dans lequel la clavette horizontale (115) comprend un élément d'absorption de chocs (119) sous celle-ci.
  7. Joint d'accouplement selon la revendication 6, dans lequel l'élément d'absorption de chocs (119) est réalisé en un matériau élastomère.
  8. Joint d'accouplement selon la revendication 1, dans lequel la douille (109) comprend une partie supérieure (109a) et une partie inférieure (109b).
  9. Joint d'accouplement selon la revendication 8, dans lequel la partie supérieure (109a) de la douille (109) est configurée pour entourer l'extrémité arrondie supérieure (103) la tête de goujon cylindrique (101).
  10. Joint d'accouplement selon la revendication 8, dans lequel la partie inférieure (109b) de la douille (109) est configurée pour entourer l'extrémité arrondie inférieure (105) la tête de goujon cylindrique (101).
EP13757393.7A 2012-03-06 2013-03-06 Joint d'accouplement Active EP2823189B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2012700054A MY163788A (en) 2012-03-06 2012-03-06 A coupling joint
PCT/MY2013/000048 WO2013133687A1 (fr) 2012-03-06 2013-03-06 Joint d'accouplement

Publications (3)

Publication Number Publication Date
EP2823189A1 EP2823189A1 (fr) 2015-01-14
EP2823189A4 EP2823189A4 (fr) 2015-12-09
EP2823189B1 true EP2823189B1 (fr) 2017-05-03

Family

ID=49117089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13757393.7A Active EP2823189B1 (fr) 2012-03-06 2013-03-06 Joint d'accouplement

Country Status (6)

Country Link
EP (1) EP2823189B1 (fr)
JP (1) JP6156707B2 (fr)
KR (1) KR102023793B1 (fr)
CN (1) CN104204562B (fr)
MY (1) MY163788A (fr)
WO (1) WO2013133687A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6347522B2 (ja) * 2015-12-24 2018-06-27 ヴィオニア日信ブレーキシステムジャパン株式会社 入力装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455208A (en) * 1967-07-03 1969-07-15 Vulcan Iron Works Percussion hammer
GB1524615A (en) * 1976-04-02 1978-09-13 Automotive Prod Co Ltd Ball joint assembly
US4154544A (en) * 1977-10-31 1979-05-15 Trw Inc. Pivot joint
US4386869A (en) * 1981-07-24 1983-06-07 Gulf & Western Manufacturing Company Integrally sealed vibration dampening ball and socket joints
JPS58124530U (ja) * 1982-02-13 1983-08-24 日立建機株式会社 油圧式ドロツプハンマ
JP2507761Y2 (ja) * 1990-03-12 1996-08-21 日笠技研株式会社 浮動性継手
US6439794B2 (en) * 2000-05-05 2002-08-27 Federal-Mogul World Wide, Inc. Compliant pivot socket for automotive steering
US6533490B2 (en) * 2001-01-05 2003-03-18 American Axle & Manufacturing, Inc. Isolation ball joint for steering and suspension
DE102004032411B4 (de) * 2004-07-02 2006-08-31 Zf Friedrichshafen Ag Luftfeder-Schwingungsdämpferbaueinheit
US7600940B1 (en) * 2009-02-17 2009-10-13 Federal Mogul World Wide, Inc. Ball joint with spacer cup

Also Published As

Publication number Publication date
KR20140129369A (ko) 2014-11-06
WO2013133687A1 (fr) 2013-09-12
KR102023793B1 (ko) 2019-11-25
JP6156707B2 (ja) 2017-07-05
EP2823189A1 (fr) 2015-01-14
MY163788A (en) 2017-10-31
JP2015510973A (ja) 2015-04-13
EP2823189A4 (fr) 2015-12-09
CN104204562A (zh) 2014-12-10
CN104204562B (zh) 2016-08-24

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