WO2005010285A1 - Installation for resiliently supporting a spud pole - Google Patents

Installation for resiliently supporting a spud pole Download PDF

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Publication number
WO2005010285A1
WO2005010285A1 PCT/NL2004/000543 NL2004000543W WO2005010285A1 WO 2005010285 A1 WO2005010285 A1 WO 2005010285A1 NL 2004000543 W NL2004000543 W NL 2004000543W WO 2005010285 A1 WO2005010285 A1 WO 2005010285A1
Authority
WO
WIPO (PCT)
Prior art keywords
spud pole
carriage
arm
supported
spud
Prior art date
Application number
PCT/NL2004/000543
Other languages
French (fr)
Inventor
Arie De Jager
Original Assignee
Ihc Holland N.V.
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 Ihc Holland N.V. filed Critical Ihc Holland N.V.
Priority to EP04774851A priority Critical patent/EP1649109B1/en
Priority to DE602004014153T priority patent/DE602004014153D1/en
Publication of WO2005010285A1 publication Critical patent/WO2005010285A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/06—Floating substructures as supports
    • E02F9/062—Advancing equipment, e.g. spuds for floating dredgers

Definitions

  • the invention relates to an installation for resihently supporting that part of a spud pole carriage in which a spud pole can be accommodated, which spud pole carriage can travel along rails on a dredger.
  • the spud pole carriage must be able to travel over the dredger since after the spud pole has been positioned in the ground it must be possible to move the vessel with respect to the latter.
  • the installation will be so designed that when the spud pole has been put into the ground said spud pole is able to make swinging movements, such as by bending, with respect to the dredger.
  • NL-C 135629 discloses a spud pole carriage that is able to tilt with respect to the wheel axles, provided with the wheels that are guided between rails permanently fixed to the vessel.
  • the aim of the invention is, now, to eliminate these drawbacks and to this end the invention makes provision that the part of the spud pole carriage in which a spud pole can be accommodated is supported with respect to the spud pole carriage such that it can swing and is joined to the one end of an arm extending essentially in the horizontal direction in the carriage, the other, free end of which arm is resihently supported in the vertical direction.
  • the spud pole carriage and the wheels thereof thus always remain in the same position. Since the arm will have a certain length, the forces acting on the free end thereof can be kept relatively low.
  • the free end of the arm can be accommodated in a simple manner between two blocks made of rubber or a similar material, which are supported by the spud pole carriage. If a "rigid" joint is desired, the blocks can then be replaced by a solid material, such as steel, or other measures can be taken in order to achieve this.
  • the free end of the arm is supported by at least one hydraulic/pneumatic, double-acting pressure medium cylinder, which at one end is connected to a part of the spud pole carriage and at the other end is connected directly or indirectly to a part that is joined to the arm. This has the advantage that the flexibility of the system can be set by varying the pressure of the medium or of the media.
  • Fig. 1 shows, diagrammatically, a side view of part of a dredger with a spud pole carriage provided with an installation according to the invention and with a part of the spud pole coupled to the carriage;
  • Figs. 2 - 5 show, diagrammatically, side views of embodiments of an installation according to the invention; and Fig.
  • FIG. 6 shows a diagram of the way in which a hydraulic/pneumatic double-acting pressure medium cylinder used according to the invention can operate.
  • Figure 1 shows part of a dredger 1, on which rails 2 have been installed for guiding the wheels 4, mounted on axles 3, of a spud pole carriage 5.
  • An accommodating part 6 for a spud pole 7 is connected to the spud pole carriage 5, which accommodating part can turn about the shaft 8.
  • the installation 9 by means of which the spud pole 7 can be brought from the position lying on the vessel into a spud pole carriage 5 is also shown diagrammatically in Fig. 1. This installation is known per se, so a further description thereof is considered to be superfluous.
  • FIG. 1 An arm 10 that extends essentially in the horizontal direction in the carriage 5 and is supported at its free end 11 is joined to the accommodating part 6.
  • Fig. 2 shows the arm 10 that is joined, such that it can swing, to the accommodating part 6, only the shaft for turning 8 of which is indicated in Fig. 2.
  • the free end 11 of the arm 10 is between two rubber blocks 12, which are supported by the parts 13 and 14 of the spud pole carriage 5. The rubber blocks 12 will thus endeavour to hold the arm 10 in the desired position, the load exerted by the spud pole 7 on the accommodating part 6 being absorbed.
  • Fig. 1 shows the arm 10 that is joined, such that it can swing, to the accommodating part 6, only the shaft for turning 8 of which is indicated in Fig. 2.
  • the free end 11 of the arm 10 is between two rubber blocks 12, which are supported by the parts 13 and 14 of the spud pole carriage 5.
  • the rubber blocks 12 will thus endeavour to hold the arm 10 in the desired position, the load exerted by the spud pole 7 on
  • Fig. 4 shows the option of supporting the part 15 joined to the arm 10 by means of a yoke 17 that on one side is coupled to the part 13 of the spud pole carriage 5 by means of a rod 18 and on the other side by means of pressure medium cylinders 16 operating hydraulically/pneumatically.
  • the embodiment according to Fig. 5 to a large extent corresponds to that in Fig. 4.
  • Fig. 6 shows the operation of a hydraulic/pneumatic pressure medium cylinder 16.
  • the piston 19 thereof has been drawn in the mid position. In this position no force is exerted on the arm 10, which is not shown and which is connected indirectly to the piston rod 20.
  • a non-compressible medium, such as oil, is present in the space above and below the piston 19 and each space is in communication with an accumulator 21 with a piston 22 therein. Pressure is exerted on the other side of the piston 22 by means of air or another gas that is in the accumulators 23 at a certain pressure.
  • the spaces on either side of the piston 19 are each connected to a buffer accumulator 24, containing the piston 25 therein on which, on the other side, the pressure of a medium such as air or another gas is exerted.
  • a medium such as air or another gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Manipulator (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Handcart (AREA)

Abstract

Installation for resiliently supporting the spud pole-accommodating part (6) of a spud pole carriage (5) that can travel over rails installed on a dredger. The said part (6) is supported with respect to the spud pole carriage (5) such that it can swing and is joined to the one end of an arm (10) extending essentially in the horizontal direction in the carriage, the other, free end (11) of which arm is resiliently supported in the vertical direction. The support can be effected in that the free end (11) is accommodated between two blocks (12) made of rubber or a similar material, which are supported by the spud pole carriage. The free end (11) of the arm (10) can also be supported by at least one hydraulic/pneumatic, double-acting pressure medium cylinder (16), which at one end is connected to a part (13) of the spud pole carriage and at the other end directly or indirectly to a part (15, 17) that is joined to the arm (10).

Description

INSTALLATION FOR RESILIENTLY SUPPORTING A SPUD POLE
The invention relates to an installation for resihently supporting that part of a spud pole carriage in which a spud pole can be accommodated, which spud pole carriage can travel along rails on a dredger. The spud pole carriage must be able to travel over the dredger since after the spud pole has been positioned in the ground it must be possible to move the vessel with respect to the latter. Furthermore, the installation will be so designed that when the spud pole has been put into the ground said spud pole is able to make swinging movements, such as by bending, with respect to the dredger. In an installation disclosed in NL-A 1011753 use is made of cables for moving the carriage, which cables can also serve for resihently absorbing loads exerted on the carriage by the spud pole. One disadvantage with this arrangement is that in the event of the cable breaking the spud pole can fall away. Furthermore, the unit is not easy to maintain and is difficult to inspect and there is risk of corrosion. Furthermore, the flexibility cannot be influenced and the carriage cannot be set in a truly fixed position. NL-C 135629 discloses a spud pole carriage that is able to tilt with respect to the wheel axles, provided with the wheels that are guided between rails permanently fixed to the vessel. For this purpose the ends of the two axles of the spud pole carriage are accommodated in slots in the side cheeks of the carriage. Each end of an axle is supported in that a compression spring is fitted above and below it. This is associated with a complex construction since the axles have to be held in place in the axial direction, whilst fitting of the springs will not be easy. Furthermore, the entire carriage can tilt to some extent. The aim of the invention is, now, to eliminate these drawbacks and to this end the invention makes provision that the part of the spud pole carriage in which a spud pole can be accommodated is supported with respect to the spud pole carriage such that it can swing and is joined to the one end of an arm extending essentially in the horizontal direction in the carriage, the other, free end of which arm is resihently supported in the vertical direction. The spud pole carriage and the wheels thereof thus always remain in the same position. Since the arm will have a certain length, the forces acting on the free end thereof can be kept relatively low. According to one embodiment, with this arrangement the free end of the arm can be accommodated in a simple manner between two blocks made of rubber or a similar material, which are supported by the spud pole carriage. If a "rigid" joint is desired, the blocks can then be replaced by a solid material, such as steel, or other measures can be taken in order to achieve this. Advantageously, however, provision can also be made that the free end of the arm is supported by at least one hydraulic/pneumatic, double-acting pressure medium cylinder, which at one end is connected to a part of the spud pole carriage and at the other end is connected directly or indirectly to a part that is joined to the arm. This has the advantage that the flexibility of the system can be set by varying the pressure of the medium or of the media. Furthermore, the fluctuations in the stresses that are exerted by the spud pole can be measured by measuring pressures of the medium or the media. This can offer advantages when using the dredger. Such an installation is also easy to maintain, with all the associated advantages. The invention will be explained in more detail with reference to illustrative embodiments shown in the drawing, in which: Fig. 1 shows, diagrammatically, a side view of part of a dredger with a spud pole carriage provided with an installation according to the invention and with a part of the spud pole coupled to the carriage; Figs. 2 - 5 show, diagrammatically, side views of embodiments of an installation according to the invention; and Fig. 6 shows a diagram of the way in which a hydraulic/pneumatic double-acting pressure medium cylinder used according to the invention can operate. Figure 1 shows part of a dredger 1, on which rails 2 have been installed for guiding the wheels 4, mounted on axles 3, of a spud pole carriage 5. An accommodating part 6 for a spud pole 7 is connected to the spud pole carriage 5, which accommodating part can turn about the shaft 8. The installation 9 by means of which the spud pole 7 can be brought from the position lying on the vessel into a spud pole carriage 5 is also shown diagrammatically in Fig. 1. This installation is known per se, so a further description thereof is considered to be superfluous. An arm 10 that extends essentially in the horizontal direction in the carriage 5 and is supported at its free end 11 is joined to the accommodating part 6. The mode of support shown in Fig. 1 will be explained in more detail with reference to Fig. 4. Fig. 2 shows the arm 10 that is joined, such that it can swing, to the accommodating part 6, only the shaft for turning 8 of which is indicated in Fig. 2. The free end 11 of the arm 10 is between two rubber blocks 12, which are supported by the parts 13 and 14 of the spud pole carriage 5. The rubber blocks 12 will thus endeavour to hold the arm 10 in the desired position, the load exerted by the spud pole 7 on the accommodating part 6 being absorbed. In the embodiment according to Fig. 3, the arm 10 is joined to a part 15 that is coupled to the part 13 of the spud pole carriage 5 by means of two pressure medium cylinders 16 operating hydraulically/pneumatically and fitted on either side of the arm 10, the operation of which cylinders will be explained in more detail with reference to Fig. 6. Fig. 4 shows the option of supporting the part 15 joined to the arm 10 by means of a yoke 17 that on one side is coupled to the part 13 of the spud pole carriage 5 by means of a rod 18 and on the other side by means of pressure medium cylinders 16 operating hydraulically/pneumatically. The embodiment according to Fig. 5 to a large extent corresponds to that in Fig. 4. However, the yoke 17 is now directly joined to the arm 10 and the rod 18 has been replaced by a hydraulic/pneumatic pressure medium cylinder 16. The number of cylinders has thus been doubled. Fig. 6 shows the operation of a hydraulic/pneumatic pressure medium cylinder 16. The piston 19 thereof has been drawn in the mid position. In this position no force is exerted on the arm 10, which is not shown and which is connected indirectly to the piston rod 20. A non-compressible medium, such as oil, is present in the space above and below the piston 19 and each space is in communication with an accumulator 21 with a piston 22 therein. Pressure is exerted on the other side of the piston 22 by means of air or another gas that is in the accumulators 23 at a certain pressure. Furthermore, the spaces on either side of the piston 19 are each connected to a buffer accumulator 24, containing the piston 25 therein on which, on the other side, the pressure of a medium such as air or another gas is exerted. If pressure is now exerted on the piston rod 20 in a specific direction, such as, for example, in the direction of the arrow P, oil will flow towards the lower buffer accumulator 24 and away from the upper buffer accumulator 24. The compressible medium that is above the piston 25 in the lower buffer accumulator 24, which piston 25 is moving inwards as a result, will be put under higher pressure, so that movement of the piston rod 20 is counteracted. When the piston 19 moves downwards, oil from the accumulator 21 will be fed to the space located above the piston, so that a vacuum will not be produced in the space concerned. The pressure of the medium in each of the buffer accumulators 24 can be measured by the manometer 26, whilst fill lines, shut-off valves and the like, which are not indicated in more detail, will also be provided. It will be clear that only a few possible embodiments of an installation according to the invention have been shown in the drawing and described above and that many modifications can be made without going beyond the inventive concept indicated in the claims.

Claims

Claims
1. Installation for resihently supporting that part (6) of a spud pole carriage (5) in which a spud pole (7) can be accommodated, which spud pole carriage can travel along rails (2) on a dredger (1), characterised in that the part (6) of the spud pole carriage (5) in which a spud pole (7) can be accommodated is supported with respect to the spud pole carriage (5) such that it can swing and is joined to the one end of an arm (10) extending essentially in the horizontal direction in the carriage, the other, free end (11) of which arm is resihently supported in the vertical direction.
2. Installation according to Claim 1, characterised in that the free end (11) of the arm (10) is accommodated between two blocks (12) made of rubber or a similar material, which are supported by parts (13, 14) joined to the spud pole carriage (5).
3. Installation according to Claim 1, characterised in that the free end (11) of the arm (10) is supported by at least one hydraulic/pneumatic, double-acting pressure medium cylinder (16), which at one end is connected to a part (13) of the spud pole carriage and at the other end is connected directly or indirectly to a part (15, 17) that is joined to the arm (10).
PCT/NL2004/000543 2003-07-29 2004-07-29 Installation for resiliently supporting a spud pole WO2005010285A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04774851A EP1649109B1 (en) 2003-07-29 2004-07-29 Installation for resiliently supporting a spud pole
DE602004014153T DE602004014153D1 (en) 2003-07-29 2004-07-29 APPENDIX FOR THE ELASTIC SUPPORT OF ANCHORING

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1024018 2003-07-29
NL1024018A NL1024018C2 (en) 2003-07-29 2003-07-29 Device for resiliently supporting that part of a spud-pile carriage in which a spud-pile can be received.

Publications (1)

Publication Number Publication Date
WO2005010285A1 true WO2005010285A1 (en) 2005-02-03

Family

ID=34102048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2004/000543 WO2005010285A1 (en) 2003-07-29 2004-07-29 Installation for resiliently supporting a spud pole

Country Status (4)

Country Link
EP (1) EP1649109B1 (en)
DE (1) DE602004014153D1 (en)
NL (1) NL1024018C2 (en)
WO (1) WO2005010285A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016375A5 (en) * 2005-06-06 2006-09-05 Dredging Int Spud for cutter suction dredger ship, has tensioned wires extending between ship and stud pole for absorbing forces from stud carriage
EP2258904A1 (en) * 2009-06-05 2010-12-08 IHC Holland IE B.V. Articulated spud carriage.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135629C (en) *
NL7712510A (en) * 1977-11-14 1979-05-16 Ihc Holland Nv Third guide track for dredging vessels post carrier - has rollers contacted by carrier pressure cylinders causing carrier wheels pressure against guide profiles
US4342164A (en) * 1977-05-09 1982-08-03 Hydraudyne B.V. Counterbalancing hydraulic system
NL1011753C1 (en) * 1999-04-08 2000-10-10 Ihc Holland Nv Pile carriage frame for dredger boat, uses pulley wheel and capstan arrangement for lifting cables to transmit stress on pile directly to boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135629C (en) *
US4342164A (en) * 1977-05-09 1982-08-03 Hydraudyne B.V. Counterbalancing hydraulic system
NL7712510A (en) * 1977-11-14 1979-05-16 Ihc Holland Nv Third guide track for dredging vessels post carrier - has rollers contacted by carrier pressure cylinders causing carrier wheels pressure against guide profiles
NL1011753C1 (en) * 1999-04-08 2000-10-10 Ihc Holland Nv Pile carriage frame for dredger boat, uses pulley wheel and capstan arrangement for lifting cables to transmit stress on pile directly to boat

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016375A5 (en) * 2005-06-06 2006-09-05 Dredging Int Spud for cutter suction dredger ship, has tensioned wires extending between ship and stud pole for absorbing forces from stud carriage
WO2006130934A2 (en) * 2005-06-06 2006-12-14 Dredging International N.V. Apparatus with flexibly mounted spud carriage
WO2006130934A3 (en) * 2005-06-06 2007-02-08 Dredging Int Apparatus with flexibly mounted spud carriage
EP2233645A3 (en) * 2005-06-06 2010-11-10 Dredging International N.V. Apparatus with flexibly mounted spud carriage
EP2258904A1 (en) * 2009-06-05 2010-12-08 IHC Holland IE B.V. Articulated spud carriage.
CN101906767A (en) * 2009-06-05 2010-12-08 Ihc荷兰Ie公司 Articulated spud carriage
CN101906767B (en) * 2009-06-05 2015-04-15 Ihc荷兰Ie公司 Articulated spud carriage

Also Published As

Publication number Publication date
EP1649109B1 (en) 2008-05-28
EP1649109A1 (en) 2006-04-26
NL1024018C2 (en) 2005-02-10
DE602004014153D1 (en) 2008-07-10

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