NL2020669B1 - Hoisting System with Releasable Locking of Hoist Elements to a Winch System - Google Patents

Hoisting System with Releasable Locking of Hoist Elements to a Winch System Download PDF

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Publication number
NL2020669B1
NL2020669B1 NL2020669A NL2020669A NL2020669B1 NL 2020669 B1 NL2020669 B1 NL 2020669B1 NL 2020669 A NL2020669 A NL 2020669A NL 2020669 A NL2020669 A NL 2020669A NL 2020669 B1 NL2020669 B1 NL 2020669B1
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NL
Netherlands
Prior art keywords
links
chain
hoisting
link
coupling member
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Application number
NL2020669A
Other languages
Dutch (nl)
Inventor
Reinier Voormolen Job
Original Assignee
Van Oord Dredging And Marine Contractors B V
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Publication date
Application filed by Van Oord Dredging And Marine Contractors B V filed Critical Van Oord Dredging And Marine Contractors B V
Priority to NL2020669A priority Critical patent/NL2020669B1/en
Priority to EP19719951.6A priority patent/EP3775392B1/en
Priority to PCT/NL2019/050190 priority patent/WO2019190318A1/en
Application granted granted Critical
Publication of NL2020669B1 publication Critical patent/NL2020669B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00—Handling building or like materials for hydraulic engineering or foundations
    • E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A hoisting system comprises a plurality of hoist elements to be hoisted; a winch system comprising a chain of links to allow hoisting hoist elements of the plurality of hoist elements, the links having a central opening; coupling members for coupling the hoist elements to the chain of links, each coupling member being secured to a hoist element and configured for providing releasable locking engagement with the chain of links; and a coupling station configured for guiding a hoist element and the chain of links through the guiding station and for automatically providing locking engagement of a coupling member secured to the respective hoist element to the chain of links or automatically releasing locking engagement of a coupling member secured to the respective hoist element from the chain of links. The coupling station may comprises a sprocket wheel for guiding the chain of links, and is configured for automatically providing locking engagement of the coupling member secured to the respective hoist element to the chain of links or automatically releasing locking engagement of the coupling member secured to the respective hoist element from the chain of links while the chain of links is guided over the sprocket wheel.

Description

FIELD OF THE INVENTION [ 01 ] The invention relates to a hoisting system comprising a plurality of hoist elements to be hoisted: a winch system comprising a chain of links to allow hoisting hoist elements of the plurality of hoist elements, the links having a central opening; and coupling members for coupling the hoist elements to the chain of links, each coupling member being secured to a hoist element and configured for providing releasable locking engagement with the chain of links.
BACKGROUND OF THE INVENTION [02] A hoisting system of the field of the invention is, for instance, employed in a fall-pipe system installed on a marine vessel for placing blocks of rock and/or stone on a sea bed. Such marine vessel and associated fall-pipe system are used to place rock and/or stone at depths of several hundreds of meters below sea level to cover, for instance, oil pipes so that such pipes remain in place and are protected on the sea bed.
[ 03 ] In the hoisting systems of such fall-pipe systems, fall-pipe sections as hoist elements and collectively providing a fall-pipe are in a separate process attached to cables or chains of the hoist system and in this fashion stored in this configuration on the marine vessel. Subsequently, the marine vessel is moved to the location where the fall-pipe is to be used, and the fall-pipe is lowered towards the sea bed for placing rock and/or stone. The fall pipe sections pre-attached to cables or chains are inconvenient to store on the marine vessel (and elsewhere as well), and inconvenient to handle when lowering the fall-pipe below sea level.
[ 04 ] Having to pre-attach fall-pipe sections to cable or chains of the hoisting system also proves to be very inflexible as the fall-pipe systems is to be used for placing rock and/or stone on the sea bed at various depths. The fall-pipe sections pre-attached to the cables or chains of the hoisting system can only be prepared for one length of fall-pipe. Therefore, the length is to be adapted on the marine vessel or the fall-pipe has to be used at the prepared length, which both are very cumbersome.
SUMMARY OF THE INVENTION [05] It is an objective of the invention to provide a hoisting system that can, for instance, be used for a fall-pipe system on a marine vessel for providing a required length of fall-pipe on the marine vessel itself.
[ 06 ] It is another or alternative objective of the invention to provide a hoisting system of which the hoist elements, fall-pipe section in the case of a fall-pipe system, can be readily coupled or decoupled with the winch system of the hoisting system.
[ 07 ] At least one of the above objectives is achieved by a hoisting system comprising - a plurality of hoist elements to be hoisted;
-2- a winch system comprising a chain of links to allow hoisting hoist elements of the plurality of hoist elements, the links having a central opening;
- coupling members for coupling the hoist elements to the chain of links, each coupling member being secured to a hoist element and configured for providing releasable locking engagement with the chain of links; and
- a coupling station configured for guiding a hoist element and the chain of links through the guiding station and for automatically providing locking engagement of a coupling member secured to the respective hoist element to the chain of links or automatically releasing locking engagement of a coupling member secured to the respective hoist element from the chain of links.
[08] The machine implemented automatic coupling and decoupling is carried out without the involvement of persons at or near the coupling station, which increases safety and prevents human error. Storage of the material is more compact as compared to known systems since hoist elements and cables or chains of the winch system are stored seperately. Storage of hoisting elements coupled to cables or chains requires more space. Hoisting elements not coupled to cables or chains can also be stored in a vertically stacked manner, which provides more flexibility in the lay-out of the whole system. The hoisting system further provides more flexibility in a distance between coupling positions of neighbouring hoisting elements on the cable or chains of the winch system. If implemented in a fall-pipe system of, for instance, bottomless buckets as hoisting elements on a marine vessel for placing rock on the sea bed, such distance can be varied in dependence on local water currents.
[ 09 ] In an embodiment the coupling station comprises a sprocket wheel for guiding the chain of links, and is configured for automatically providing locking engagement of the coupling member secured to the respective hoist element to the chain of links or automatically releasing locking engagement of the coupling member secured to the respective hoist element from the chain of links while the chain of links is guided over the sprocket wheel.
[ 10 ] In an embodiment the sprocket wheel is configured to hold every other link of the chain of links when guided over the sprocket wheel to align a link neighbouring links held by the sprocket wheel such that an opening surface of the central opening of said link in between links held by the sprocket wheel is directed perpendicular to a rotation axis of the sprocket wheel.
[11 ] In an embodiment a circumference length of the sprocket wheel corresponds to 4-12 positions for holding links by the sprocket wheel, optionally to 6-10 positions, optionally 8 positions.
[12] In an embodiment each coupling member comprises a pin for insertion into the central opening of a link of the chain of links when a coupling member is coupled with the chain of links.
[13] In an embodiment the pin comprises a distal end with respect to the hoist
- 3element and a hook-shaped portion at the distal end, the hook-shaped portion being configured to allow insertion of the pin into or withdrawal of the pin from the central opening of a link of the chain of links when a part of the chain of links comprising the respective link is in a bend configuration, and to geometrically lock the pin with the chain of links to provide locking engagement when a part of the chain of links comprising the respective link is in a straight configuration.
[14] In an embodiment a shape of a bottom portion or a top portion of the hook-shaped part corresponds to a shape of a top portion or a bottom portion, respectively, of a link of the chains of links, preferably the shape of the bottom portion of the hook-shaped part corresponds to the shape of the top portion of the link of the chain of links.
[15] In an embodiment a width of the bottom portion or top portion of the hook-shaped part corresponds to a width of a link in the chain of links.
[16] In an embodiment the coupling member comprises at least one bend-spring element configured to catch around a link to hold a link part of the respective link in between the pin and the bend-spring element, the bend-spring element only allowing deflection in a direction transverse to a longitudinal direction of the pin and a longitudinal direction of the chain of links in a state when the coupling member is in engagement with the chain of links.
[ 17 ] In an embodiment the bend-spring element comprises a strip-like portion.
[18] In an embodiment the bend-spring element comprises a distal end with respect to the hoist element, the distal end having a catch side for catching around a link and a shape of the catch side corresponding to a shape of the link part to be held.
[ 19 ] In an embodiment a width of the catch side corresponds to a thickness of a link of the chain of links.
[ 20 ] In an embodiment the coupling member comprises bend-spring elements on opposing sides of the coupling member.
[ 21 ] In an embodiment the sprocket wheel comprises a flange portion for cooperation with the bend-spring element when the hoist element and the chain of links are guided through the coupling station to provide deflection of the bend-spring element to allow the bend-spring element to catch around a link of the chain of links.
[ 22 ] In another aspect the invention provides for a fall-pipe system for placing rock on a sea bed in marine-use applications, wherein the fall-pipe systems comprises the hoisting system as referred to above, and the hoist elements comprise bottomless buckets to provide, in use, a fall-pipe of cooperating bottomless buckets coupled to the chain of links.
[ 23 ] In yet another aspect the invention provides for a marine vessel comprising the above faII-pipe system.
BRIEF DESCRIPTION OF THE DRAWINGS [24] Further features and advantages of the invention will become apparent from the description of the invention by way of non-limiting and non-exclusive embodiments. These embodiments are not to be construed as limiting the scope of protection. The person skilled
-4in the art will realize that other alternatives and equivalent embodiments of the invention can be conceived and reduced to practice without departing from the scope of the present invention. Embodiments of the invention will be described with reference to the accompanying drawings, in which like or same reference symbols denote like, same or corresponding parts, and in which
Figure 1 shows a marine vessel with a fall-pipe system comprising the hoisting system according to the invention;
Figure 2 shows the fall-pipe system of figure 1 in more detail;
Figure 3A and 3B show a perspective view and side view, respectively, of the guiding units of a hoisting system according to the invention;
Figures 4A and 4B show a perspective view and side view, respectively, of the guiding units of figures 3A and 3B in more detail;
Figures 5A and 5B show a perspective view and side view, respectively, of the guiding units of figures 4A and 4B in a different position of the guiding and urging loops;
Figures 6A and 6B show releasable locking engagement of a pin of a coupling member with a chain according to the invention; and
Figure 7A, 7B and 7C show releasable locking engagement of bend-spring elements of a coupling member with a chain according to the invention.
DETAILED DESCRIPTION OF EMBODIMENTS [ 25 ] Figure 1 shows a schematic large-scale view of a marine vessel 10 provided with a fall pipe system 100 according to the invention. The vessel is travelled to a location where stone and/or rock is to be placed on the bottom of the sea. The stone and/or rock may be taken with the vessel, provided by another vessel or supplied in another suitable manner. At the desired location the stone or rock is provided to the sea bed using the fall pipe system. The blocks of stone and/or rock R are placed at a sea depth SD of, for instance, 1,500 meter. Figure 1 also shows the influence of dynamic loads due to, for instance, water currents CD1 and CD2. The example of figure 1 shows one current closer to sea level in a direction CD1 and another water current near to the sea bed SB in an opposite direction CD2.
[26] Figure 2 shows part of the marine vessel 10 of figure 1 on which a fall pipe system 100 is arranged. A fall pipe made up of various fall pipe sections 110 suspends down from the vessel through a shaft 11 (moon pool) in the vessel to a large depth just above a sea bed SB. Each fall pipe section 110 is configured as a bottomless bucket. Blocks of stone and/or rock R are provided by a conveyer 12 arranged on the vessel to a top end of the fall pipe and subsequently drop down the tubular fall pipe of cooperating bottomless buckets (tubular fall pipe section) 110, as indicated by unlabelled arrows shown above the conveyer and within the fall pipe. The blocks of stone and/or rock R then leave the last fall pipe section (bottomless bucket) 110L of the fall pipe to be positioned on the sea bed SB.
[ 27 ] A driver arrangement 140 is provided at the end of the fall pipe for positioning the end of the fall pipe at the correct position above the sea bed. The driver arrangement
- 5comprises drivers 141 for positioning the driver arrangement together with the end of the fall pipe along the sea bed SB as indicated by arrows D. The driver arrangement further has a shaft 142 for accommodating the fall pipe and/or for passing blocks of stone and/or rock from the end of the fall pipe towards the sea bed. The driver arrangement is shown to be attached to the last fall pipe section 110L, but it can also be attached to a fall pipe section further up the fall pipe.
[28] The bottomless buckets 110 are each coupled to chains 251 so as to, in cooperation, make up the fall pipe. The chains also serve to lift and lower the file pipe through shaft 11 using winch system 250 as part of the hoisting system 200 on the marine vessel 10. To couple and decouple individual bottomless buckets (hoist elements) 110 to the chains 251, the hoisting system is provided with a coupling station comprising first and second guiding units 210, 220. In the coupling station 200, individual bottomless buckets 110 (which may generally also be referred to as hoist elements to be hoisted by hoisting system 200) can be added and coupled to the chains 251 at the top end of the fall pipe when the fall pipe is lowered, and decoupled and removed again when the fall pipe is being lifted. The chains are each a chain 250 of links 251 a, and each link has a central opening.
[ 29 ] The coupling station in the embodiments shown in the figures serves to both automatically couple bottomless buckets to the chains when the fall pipe system is being lowered, and to automatically decouple bottomless buckets from the chain when the fall pipe system is being raised. The coupling station has a first guiding unit 210 in the form of sprocket wheels 212 for guiding the chains 251 of the winch system 250 through the coupling station. Each chain is guided by one sprocket wheel 212 in the embodiment shown.
[ 30 ] The bottomless buckets are loaded onto a second guiding unit 220 for guiding the bottomless buckets through the coupling station. The second guiding unit comprises first and second continuous holding loops of a chain 221 that are each guided over sprocket wheels 222. Alternatively, the holding loops may have a cable or any other suitable means to make a holding loop. The holding loop carries one or more holding elements 223 secured to the chain 221, each holding element being configured to allow holding a bottomless bucket 110. The first and second holding loops of the second guiding unit 220 with their respective holding elements 223 cooperate to hold a single bottomless bucket 110. The first and second guiding units 210, 220 are coupled to provide synchronization of the travel speed of the chain of the winch system and the travel speed of the hoist element held and guided by the second guiding unit 220. Further, the first and second guiding units 210, 220 are configured and arranged to guide the chain 251 of the winch system and the hoist element 110 held and guided by the second guiding unit towards each other (or away from one another at decoupling) and to allow for automatic coupling (or decoupling) of the hoist element and the chain 251.
[31 ] The bottomless buckets 110 each have two coupling members 150 for coupling the bottom less buckets to the chains 251 of links 251a of the winch system 250. Each coupling member is secured to a bottomless bucket and provides for releasable locking
-6engagement with the chain of links. Each coupling member 150 comprises a pin for insertion into the central opening of a link 251 a of the chain 251 of links when the coupling member is coupled with the chain. A coupling member 150 is coupled with the chain by insertion of a distal end 151a of the pin 151 into the central opening of a respective link 251a when a part of the chain of links comprising the respective link is guided over a respective sprocket wheel 212 so that it is in a bend configuration. The bend configuration allows ready insertion of the pins 151 into the central opening of such links by lowering the bottomless bucket with the pins 151 of its coupling members 150 into alignment with the respective links 251a into which the respective pins are to be inserted. The holding elements 223 carried by the guiding loops of the second guiding unit 220 each comprise a protruding element that protrudes in an outside direction transverse to the holding loop to bear the pins 151 of the coupling members 150 secured to the bottomless bucket 110 held by the holding elements 223.
[32] To further assist in achieving automatic coupling of the coupling members 150 secured to the bottomless buckets 110 and the chains 251 of links 251a, the coupling station comprises a third guiding unit 230. The third guiding unit cooperates with the second guiding unit 220 to urge a bottomless bucket held and guided by the second guiding unit in a position with respect to the chain 251 of the winch system to allow for automatic coupling (or decoupling) of the bottomless bucket and the chain. The third guiding unit is coupled to the second guiding units to synchronize to the travel speed of a bottomless bucket held and guided by the second guiding unit.
[ 33 ] The third guiding unit 230 comprises continuous first and second urging loops of a chain 231 carrying one or more urging elements 233 secured to the chain of a respective urging loop. Each urging element cooperates with the second guiding unit 220 to urge a bottomless bucket held and guided by the second guiding unit in the required position with respect to a respective chain 251 of the winch system 250 to allow for automatic coupling (or decoupling) of the bottomless bucket and the chain. The chains 231 of the urging loops of the third guiding unit are guided by one or more sprocket wheels 232. The holding elements 223 of the second guiding unit 220 and the urging elements 233 of the third guiding unit 230 cooperate for urging a bottomless bucket 110 in position for automatic coupling (or decoupling) of the chains 251 and the bottomless bucket 110. Each urging element comprises a protruding element that protrudes in an outside direction transverse to the respective urging loop, and pushes onto a pin 151 of a coupling member 150 secured to a bottomless bucket held and guided by the second guiding unit. The first holding and urging loops of the second and third guiding units, respectively, together, and the second holding and urging loops of the second and third guiding units, respectively, together cooperate for urging a single bottomless bucket in position with respect to the chains 251 of the winch system 250. The pins 151 secured to the bottomless buckets 110 are held in between respective holding elements 223 and urging elements 233 to urge and insert the pins into central openings of respective links 251a of the chains 251 of links for coupling of a bottomless bucket and the chains.
- 7[34] Coupling of a coupling member 150 secured to a bottomless bucket 110 proceeds automatically when the fall pipe and its bottomless buckets are lowered, and decoupling also proceeds automatically when the fall pipe and its bottomless buckets are raised. The sprocket wheels of the first, second and third guiding rotate in reverse directions to achieve decoupling as compared to their rotation direction to achieve coupling. Correspondingly, the chains of the winch system and the second and third guiding units also travel in opposite directions for decoupling as compared to their travel direction for coupling.
[35] To achieve coupling a pin 151 of a coupling member 150 is inserted into a central opening of a link 251a of a chain 250 of links. The coupling station comprises a sprocket wheel 212 for guiding the chain 251 of links 251a of the winch system 250, and is configured for automatically providing locking engagement of a coupling member 150 secured to the bottomless bucket 110 to the chain 251 or releasing locking engagement of the coupling member from the chain while the chain is guided over the sprocket wheel. The sprocket wheel 212 in the embodiment shown holds every other link of the chain 251 of links 251a when guided over the sprocket wheel to align a link neighboring links held by the sprocket wheel such that the opening surface of the central opening of such link in between links held by the sprocket wheel 212 is directed perpendicular to the rotation axis of the sprocket wheel. This allows ready insertion of the pin 151 of a coupling member 150 into the opening of such link 251a. The circumference length of the sprocket wheel 212 may generally correspond to 4-12 positions for holding links 251a by the sprocket wheel, optionally 6-10 positions, or 8 positions as shown in de embodiment of the figures.
[36] The pin 151 of the coupling member 150 comprises a distal end 151a with respect to the bottomless bucket 110 and a hook-shaped portion at the distal end as is specifically shown in figures 6A and 6B. The hook-shaped portion is shaped such that it allows insertion of the pin into the central opening of a link 251 a of the chain 251 of links of the winch system 250 when a part of the chain of links comprising the respective link is in a bend configuration when guided over a respective sprocket wheel 212. The configuration of the hook-shaped portion provides locking engagement with the chain when the part of the chain of links comprising the respective link is in a straight position when in a suspended position below the respective sprocket wheel. The pin 151 and its coupling member 150 is geometrically locked to the chain in a straight configuration of the chain. The hook-shaped portion of the distal end 151a of the pin 151 allows also ready withdrawal of the pin from the central opening of a link 251a when a portion of the chain comprising the respective link is again guided over a respective sprocket wheel when the fall pipe and its bottomless buckets are raised. The shape of the bottom portion of the hook-shaped portion of the pin 151 corresponds to the shape of the top portion of the links of the chains of links. Alternatively, the shape of the top portion of the hook-shaped portion of the pin 151 corresponds to the shape of the bottom portion of the links. The width WP of the bottom (or top) portion of the hook-shaped part corresponds to a width WL of the links of the chain.
[37] Figures 7A, 7B and 7C show that the coupling member 150 further has two
- 8bend-spring elements 152 to catch around a link 251a to hold a link part of the respective link in between the pin 151 of the coupling member 150 and the bend-spring element 152. The bend-spring elements 152 are arranged on opposing sides of the coupling member 150. A bend-spring element only allows deflection in a direction transverse to a longitudinal direction of the pin 151 and a longitudinal direction of the chain 251 of links in a state when the coupling member is in engagement with the chain of links as is depicted by the arrows in figures 7A, 7B and 7C. The bend-spring element comprises a strip-like portion to allow for such deflection. The bend-spring element 152 has a distal end 152a with respect to the bottomless bucket 110, which has a catch side for catching around a link and a shape of the catch side corresponds to the shape of the link part to be held by the bend-spring element. The width WC of the catch side corresponds to the thickness TL of the links.
[38] The bend-spring elements 152 allow for another releasable locking engagement of the coupling member 150 to the chain of links. The sprocket wheels 212 of the first guiding arrangement 210 comprises flange portions 213 that cooperate with a bend-spring element 152 when the bottomless bucket 110 with its coupling member 150 and the chain 350 of links 351a are guided by the second guiding unit 220 and first guiding unit 210, respectively, through the coupling station 200. The flange portions 213 provide deflection of the bend-spring elements to allow the bend-spring elements to catch around a link of the chain of links.

Claims (16)

CONCLUSIESCONCLUSIONS 1. Een hijssysteem (200) omvattendeA hoisting system (200) comprising - een aantal te hijsen hijselementen (110);- a number of hoisting elements (110) to be hoisted; - een liersysteem (250) omvattende een ketting (251) van schakels (251a) teneinde hijsen van hijselmenten van het aantal hijselementen mogelijk te maken; welke schakels een centrale opening hebben;- a winch system (250) comprising a chain (251) of links (251a) to enable hoisting elements of the plurality of hoisting elements; which links have a central opening; - koppelingsorganen (150) voor het koppelen van de hijselementen met de ketting van schakels, waarbij elk koppelingsorgaan is vastgemaakt aan een hijselement en is geconfigureerd voor het verschaffen van een losmaakbare vergrendelingsaangrijping met de ketting van schakels; en- coupling members (150) for coupling the hoisting elements to the chain of links, each coupling member being attached to a hoisting element and configured to provide a releasable locking engagement with the chain of links; and - een koppelingsstation geconfigureerd voor het geleiden van een hijselement en de ketting van schakels doorheen het koppelingsstation en voor het automatisch verschaffen van vergrendelingsaangrijping van een koppelingsorgaan dat is bevestigd aan het respectieve hijselement met de ketting van schakels of het automatisch losmaken van de vergrendelingsaangrijping van een koppelingsorgaan dat is bevestigd aan een hijselement van de ketting van schakels.- a coupling station configured for guiding a hoisting element and the chain of links through the coupling station and for automatically providing locking engagement of a coupling member attached to the respective hoisting element with the chain of links or automatically releasing the locking engagement of a coupling member that is attached to a hoisting element of the chain of links. 2. Het hijssysteem volgens conclusie 1, waarbij het koppelingsstation omvat een kettingwiel (212) voor het geleiden van de ketting (251) van schakels (251a), is geconfigureerd voor het automatisch verschaffen van vergrendelingsaangrijping van het koppelingsorgaan dat is bevestigd aan het respectieve hijselement met de ketting van schakels of het automatisch losmaken van de vergrendelingsaangrijping van het koppelingsorgaan dat is bevestigd aan het respectiveve hijselement van de ketting van schakels terwijl de ketting van schakels over het kettingwiel wordt geleid.The hoisting system of claim 1, wherein the coupling station comprises a sprocket (212) for guiding the chain (251) of links (251a), is configured to automatically provide locking engagement of the coupling member attached to the respective hoisting element with the chain of links or automatically releasing the locking engagement of the coupling member attached to the respective hoisting element of the chain of links while the chain of links is guided over the chain wheel. 3. Het hijssysteem volgens de voorgaande conclusie, waarbij het kettingwiel (212) is geconfigureerd om elke andere schakel (251a) van de ketting (251) van schakels vast te houden wanneer deze over het kettingwiel worden geleid voor het uitlijnen van een schakel die naastgelegen is aan schakels die door het kettingwiel worden vastgehouden zodanig dat een openend oppervlak van de centrale opening van genoemde schakel tussen schakels vastgehouden door het kettingwiel loodrecht is gericht op een rotatie-as van het kettingwiel.The hoisting system of the preceding claim, wherein the sprocket (212) is configured to hold any other link (251a) of the chain (251) of links as they are passed over the sprocket for aligning a link that is adjacent is to links held by the sprocket such that an opening surface of the central opening of said link between links held by the sprocket is directed perpendicular to a rotation axis of the sprocket. 4. Het hijssysteem volgens de voorgaande conclusie, waarbij een omtrekslengte van het kettingwiel (212) correspondeert met 4-12 posities voor het vasthouden van schakels door het kettingwiel, optioneel met 6-10 posities, optioneel 8 posities.The hoisting system of the preceding claim, wherein a circumferential length of the sprocket (212) corresponds to 4-12 positions for retaining links by the sprocket, optionally 6-10 positions, optionally 8 positions. 5. Het hijssysteem volgens willekeuring welke van de voorgaande conclusies, waarbij elk koppelingsorgaan (150) een pin omvat (151) voor insteken in de centrale openingThe hoisting system of any one of the preceding claims, wherein each coupling member (150) comprises a pin (151) for insertion into the central opening - 10van een schakel van de ketting (251) van schakels (251a) wanneer een koppelingsorgaan is gekoppeld met de ketting van schakels.- a link of the chain (251) of links (251a) when a coupling member is coupled to the chain of links. 6. Het hijssysteem volgens de voorgaande conclusie, waarbij de pin (151) omvat een distaai uiteinde (151a) met betrekking tot het hijselement (110) en een haakvormig gedeelte aan het distale uiteinde, welk haakvormig gedeelte is geconfigureerd om insteken van de pin mogelijk te maken in of uitnemen van de pin uit de centrale opening van een schakel (251a) van de ketting van schakels wanneer een deel van de ketting van schakels, dat de respectieve schakel omvat, in een gebogen configuratie is, en om de pin geometrisch te vergrendelen met de ketting van schakels voor het verschaffen van vergrendelingsaangrijping wanneer een deel van de ketting van schakels, dat de respectieve schakel omvat, in een rechte configuratie is.The hoisting system of the preceding claim, wherein the pin (151) comprises a distal end (151a) with respect to the hoisting element (110) and a hook-shaped portion at the distal end, which hook-shaped portion is configured to enable insertion of the pin to insert or remove the pin from the central opening of a link (251a) of the chain of links when a part of the chain of links, comprising the respective link, is in a curved configuration, and to make the pin geometric locking with the chain of links for providing lock engagement when a part of the chain of links, comprising the respective link, is in a straight configuration. 7. Het hijssysteem volgens de voorgaande conclusie, waarbij een vorm van een onderste gedeelte of een bovenste gedeelte van het haakvormig gedeelte correspondeert met een vorm van respectievelijk een bovenste gedeelte of een onderste gedeelte van een schakel (251a) van de ketting (251) van schakels, bij voorkeur de vorm van het onderste gedeelte van het haakvormig gedeelte correspondeert met de vorm van het bovenste gedeelte van de schakel van de ketting van schakels.The hoisting system of the preceding claim, wherein a shape of a lower portion or an upper portion of the hook-shaped portion corresponds to a shape of an upper portion or a lower portion of a link (251a) of the chain (251) of links, preferably the shape of the lower portion of the hook-shaped portion corresponds to the shape of the upper portion of the link of the chain of links. 8. Het hijssysteem volgens de voorgaande conclusie, waarbij een breedte (WP) van het onderste gedeelte of het bovenste gedeelte van het haakvormige gedeelte correspondeert met een breedte (WL) van een schakel in de ketting (251) van schakels (251 a).The hoisting system of the preceding claim, wherein a width (WP) of the lower portion or the upper portion of the hook-shaped portion corresponds to a width (WL) of a link in the chain (251) of links (251a). 9. Het hijssysteem volgens willekeurig welke van de voorgaande conclusies, waarbij het koppelingsorgaan (150) omvat ten minste één buigveerelement (152) dat is geconfigureerd om te grijpen rond een schakel (251a) voor het vasthouden van een schakeldeel van de respectieve schakel tussen de pin en het buigveerelement, welk buigveerelement slechts deflectie toestaat in een richting dwars op de langsrichting van de pin en een langsrichting van de ketting (251) van schakels in een toestand wanneer het koppelingsorgaan in aangrijping is met de ketting van schakels.The hoisting system of any of the preceding claims, wherein the coupling member (150) comprises at least one bending spring member (152) configured to engage around a link (251a) for holding a switch part of the respective link between the pin and the bending spring element, which bending spring element only allows deflection in a direction transverse to the longitudinal direction of the pin and a longitudinal direction of the chain (251) of links in a state when the coupling member is engaged with the chain of links. 10. Het hijssysteem volgens de voogaande conclusie, waarbij het buigveerelement (152) omvat een stripachtig gedeelte.The hoisting system of the guardian claim, wherein the bending spring element (152) comprises a strip-like portion. 11. Het hijssysteem volgens willekeurig welke van de voorgaande twee conclusies, waarbij het buigveerelement (152) omvat een distaai uiteinde (152a) met betrekking tot het hijselement (110), welk distaai uiteinde een grijpzijde heeft voor het grijpen rond een schakel (251a) en een vorm van de grijpzijde correspondeert met een vorm van het vast te houden schakeldeel.The hoisting system of any of the preceding two claims, wherein the bending spring element (152) comprises a distal end (152a) with respect to the hoisting element (110), said distal end having a gripping side for gripping around a link (251a) and a shape of the gripping side corresponds to a shape of the switching part to be held. -11-11 12. Het hijssysteem volgens de voorgaande conclusie, waarbij een breedte (WC) van de grijpzijde correspondeert met een dikte (TL) van een schakel (251a) van de ketting (251) van schakels.The hoisting system of the preceding claim, wherein a width (WC) of the gripping side corresponds to a thickness (TL) of a link (251a) of the chain (251) of links. 13. Het hijssysteem volgens willekeurig welke van de voorgaande vier conclusies, waarbij het koppelingsorgaan (150) omvat buigveerelementen (152) aan tegenoverliggende zijden van het koppelingsorgaan.The hoisting system according to any of the preceding four claims, wherein the coupling member (150) comprises bending spring elements (152) on opposite sides of the coupling member. 1010 14. Het hijssysteem volgens willekeurig welke van de voorgaande vijf conclusies en conclusie 2, waarbij het kettingwiel (212) omvat een flensgedeelte (213) voor samenwerking met het buigveerelement (152) wanneer het hijselement (110) en de ketting (251) van schakels (251a) doorheen het koppelingsstation worden geleid teneinde deflectie te verschaffen van het buigveerelement om mogelijk te maken dat hetThe hoisting system of any one of the preceding five claims and claim 2, wherein the sprocket (212) comprises a flange portion (213) for cooperating with the bending spring element (152) when the hoisting element (110) and the chain (251) of links (251a) are passed through the coupling station to provide deflection of the bending spring member to allow the 15 buigveerelement grijpt rond een schakel van de ketting van schakels.Bending spring element engages around a link in the chain of links. 15. Een valpijpsysteem voor het plaatsen van steen op een zeebodem in mariene gebruikstoepassingen, waarbij het valpijpsysteem omvat het hijssysteem (200) volgens willekeurig welke van de voorgaande conclusies, en de hijselementen (110) omvattenA fall pipe system for placing rock on a seabed in marine applications, wherein the fall pipe system comprises the hoisting system (200) according to any of the preceding claims, and the hoisting elements (110) 20 bodemloze emmers teneinde, in gebruik, een valpijp te verschaffen van samenwerkende bodemloze emmers die zijn gekoppeld met de ketting (251) van schakels (251a).Bottomless buckets to provide, in use, a downpipe of cooperating bottomless buckets coupled to the chain (251) of links (251a). 16. Een zeeschip omvattende het valpijpsysteem volgens de voorgaande conclusie.A seagoing vessel comprising the fall pipe system according to the preceding claim. 1/71/7
NL2020669A 2018-03-26 2018-03-26 Hoisting System with Releasable Locking of Hoist Elements to a Winch System NL2020669B1 (en)

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NL2020669A NL2020669B1 (en) 2018-03-26 2018-03-26 Hoisting System with Releasable Locking of Hoist Elements to a Winch System
EP19719951.6A EP3775392B1 (en) 2018-03-26 2019-03-26 Hoisting system with releasable locking of hoist elements to a winch system
PCT/NL2019/050190 WO2019190318A1 (en) 2018-03-26 2019-03-26 Hoisting system with releasable locking of hoist elements to a winch system

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450675A1 (en) * 1990-03-05 1991-10-09 Van Oord Acz B.V. Vessel for depositing material on the sea bed
WO2012008829A1 (en) * 2010-07-16 2012-01-19 Tideway Bv Device for dredging soil material under water
WO2016144178A1 (en) * 2015-03-11 2016-09-15 Van Oord Dredging And Marine Contractors B.V. Marine fall pipe system providing an intermediate opening, and marine vessel comprising such fall pipe system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2007974C2 (en) * 2011-12-15 2013-06-18 Bos & Kalis Baggermaatsch Dumping vessel.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450675A1 (en) * 1990-03-05 1991-10-09 Van Oord Acz B.V. Vessel for depositing material on the sea bed
WO2012008829A1 (en) * 2010-07-16 2012-01-19 Tideway Bv Device for dredging soil material under water
WO2016144178A1 (en) * 2015-03-11 2016-09-15 Van Oord Dredging And Marine Contractors B.V. Marine fall pipe system providing an intermediate opening, and marine vessel comprising such fall pipe system

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