NL2007488C2 - Cutting device. - Google Patents

Cutting device. Download PDF

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Publication number
NL2007488C2
NL2007488C2 NL2007488A NL2007488A NL2007488C2 NL 2007488 C2 NL2007488 C2 NL 2007488C2 NL 2007488 A NL2007488 A NL 2007488A NL 2007488 A NL2007488 A NL 2007488A NL 2007488 C2 NL2007488 C2 NL 2007488C2
Authority
NL
Netherlands
Prior art keywords
cutting
accommodation
cutting device
tooth
water
Prior art date
Application number
NL2007488A
Other languages
Dutch (nl)
Inventor
Robert Gerard Ketterij
Original Assignee
Ihc Holland Ie Bv
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 Ie Bv filed Critical Ihc Holland Ie Bv
Priority to NL2007488A priority Critical patent/NL2007488C2/en
Priority to PCT/NL2012/050673 priority patent/WO2013048241A1/en
Application granted granted Critical
Publication of NL2007488C2 publication Critical patent/NL2007488C2/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9262—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with jets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
    • E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

Cutting device
Background of the invention 5 The invention relates to cutting device for an underwater excavation system, like a dredging system.
The invention further relates to a method for a cutting device for a dredging system.
EP 1 653 009 A1 discloses a cutting member for a dredging system having a tooth 10 and a tooth holder. The tooth is provided with a cavity and the tooth holder has a pointed end which tightly fits in said cavity, and a conduit for delivering a water jet near the cutting edge. The tooth holder has a tooth holder channel and the tooth has a tooth channel. A feed pipe couples the tooth holder channel and the tooth channel. Water is fed to the feed pipe at a certain pressure higher than the ambient water pressure.
15 In addition US 4,652,056 discloses a mineral cutting device wherein, the conveyance of pressurized water by means of a lance ensures that there is no water pressure acting on the pick tending to dislodge the latter from its holder, and hence industry standard latching arrangements can be used, while industry standard picks can also be employed, as the only modification necessary to a standard pick is the drilling of 20 a bore to a diameter slightly greater than the external diameter of the lance, to ensure generally unimpeded passage of a lance along its bore particularly during insertion of a pick into its holder.
Summary of the invention 25
The invention aims to provide an improved cutting device, wherein at least one problem associated with prior art cutting devices for dredging systems is at least partly solved.
Another object of the invention is to provide an alternative cutting device.
30 Yet another object of the invention is to provide a more simple cutting device, having a lower number of parts and which cutting device is more lightweight.
According to a first aspect of the invention this is realized with a cutting device for an underwater excavation system, wherein the cutting device comprises, 2 - a cutting tooth moveably arranged with the cutting device, and provided with a cutting edge for the exertion of a cutting force on a layer to be treated, - a water jet device for providing a water jet at the cutting edge for facilitating 5 the treatment of the layer, wherein the water jet device comprises an accommodation for holding water under pressure therein, and wherein the cutting force increases the pressure in the accommodation for displacing water from the accommodation for providing the water jet.
10 Because the cutting force actuates the water jet, reduced or even no additional pump capacity at all is required for water jetting which simplifies the water jet device wherein a commonly used water jet pump can be dispensed with. A further advantage is the direct relation between the cutting force and the water jet, i.e. when the excavation is heavy and the required cutting force is high, also the power of the water jet increases.
15 This way a self-regulated water jet device is obtained.
The cutting device according to the invention is not limited to a use in an underwater excavation system like a dredging system, it may also advantageously be used for the mining industry, in particular for deep sea mining.
Treatment of the layer may involve processes like for instance dredging, 20 excavating, eroding, winning etc.
In an embodiment of the cutting device according to the invention, the cutting device comprises no pump for providing the water jet such that the water jet is only caused by the cutting force. The omission of the usual jet water pump makes the cutting 25 device more simple and saves weight.
In an embodiment of the cutting device according to the invention, the cutting device comprises a tooth holder for holding the cutting tooth in a replaceable manner.
30 In an embodiment of the cutting device according to the invention, the cutting tooth is moveably coupled with the cutting tooth holder for advancing the cutting tooth in the accommodation while exerting a cutting force, for displacing water from the accommodation for providing the water jet.
3
The cutting tooth being moveably arranged with the cutting device, specifically the cutting tooth holder, may involve sliding of the cutting tooth or a linkage system for enabling movement of the cutting tooth.
5 In an embodiment of the cutting device according to the invention, the accommodation forms a part of the cutting tooth.
In an embodiment of the cutting device according to the invention, the accommodation is coupled with the cutting tooth in a sealing manner.
10
In an embodiment of the cutting device according to the invention, the accommodation is at least partly formed with the cutting tooth.
In an embodiment of the cutting device according to the invention, the 15 accommodation is arranged between the cutting tooth and the tooth holder.
In an embodiment of the cutting device according to the invention, the accommodation forms part of the tooth holder. This facilitates the use of standard cutting teeth.
20
In an embodiment of the cutting device according to the invention, the cutting device comprises an accommodation filling system for filling the accommodation with water while the cutting tooth does not exert the cutting force on a layer to be treated.
25 In an embodiment of the cutting device according to the invention, the accommodation filling system comprises a tensioning system for tensioning the tooth in a direction at least partly opposite the cutting force for filling the accommodation with water when the cutting tooth does not exert the cutting force on a layer to be treated.
In many cutting devices, a cutting tooth cuts during a part of a cutting cycle, 30 during the remaining part of the cutting cycle, the tensioning system advances the tooth away from the accommodation for filling the accommodation with water.
In addition, the tensioning system is beneficial for controlling the cutting force.
4
In an embodiment of the cutting device according to the invention, the accommodation is formed from resilient rubber, and wherein preferably the accommodation is part of the tensioning system. Forms part here means that the resilient rubber of the accommodation adds to the tensioning system.
5
In an embodiment of the cutting device according to the invention, the tensioning system is arranged between the cutting tooth and the tooth holder. This arrangement facilitates having a compact cutting device.
10 In an embodiment of the cutting device according to the invention, the accommodation is coupled with, preferably formed with, a conduit, which conduit at least partly extends in the cutting tooth for debouching water at the outlet. This way, sealingly engagement with the cutting tooth for maintaining pressure in the accommodation is simple.
15
In an embodiment of the cutting device according to the invention, the water jet device comprises a discharge outlet for providing the water jet, and a water inlet coupled with the accommodation for supplying water to the accommodation.
20 In an embodiment of the cutting device according to the invention, the inlet is provided with the tooth holder.
In an embodiment of the cutting device, the inlet is provided with the tooth holder and opposite and remote from the cutting edge. This is beneficial since it prevents 25 pollution of the accommodation and conduits with excavated matter.
In an embodiment of the cutting device according to the invention, the inlet is coupled with a valve for maintaining water under pressure in the accommodation.
30 In an embodiment of the cutting device according to the invention, the inlet and the outlet are coupled with the accommodation via a common conduit for providing the water jet and for supplying water to the accommodation. The common conduit makes the system even more simple.
5
The invention further relates to a dredging system comprising a cutting device.
The invention further relates to a deep sea mining system comprising a cutting 5 device.
The invention further relates to a method for a cutting device according to the invention, wherein the method comprises the step; - increase the pressure in the accommodation by an increase in the cutting 10 force for displacing water from the accommodation for providing the water jet at the cutting edge for facilitating the treatment of the layer to be treated.
The invention further relates to the use of a cutting device according to the 15 invention in a dredging system.
The invention further relates to the use of a cutting device according to the invention in a deep sea mining system.
20 The invention further relates to a device comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
The invention further relates to a method comprising one or more of the characterising features described in the description and/or shown in the attached 25 drawings.
It is clear that the various aspects referred to in this patent application can be combined and each individual can qualify for a divisional patent application. The various aspects discussed in this patent can be combined in order to provide additional advantages.
Description of the drawings 30 6
The invention will be further elucidated referring to an preferred embodiment shown in the drawing wherein shown in:
Fig. 1 schematic side view of a cutting tooth of the cutting device according to the invention; 5 fig. 2 schematic side view of the cutting device; and in fig. 3 a schematic side view of a further embodiment of the cutting device according to the invention.
Detailed description of embodiments 10
The invention is now described in detail referring to all figures 1-3. Fig. 1 shows a schematic side view of the cutting device 1 for a tool for excavating soil and/or rock.
The cutting device 1 comprises a cutting tooth 2 provided with a cutting edge 4 for the exertion of a cutting force, for example, on a layer of sand or rock.. The cutting device 1 15 comprises a water jet device 3 providing a water jet 5 at the cutting edge 4 for facilitating the excavation of sand from the sand layer. The water jet device 3 comprises an accommodation 6 for holding water under pressure which water is depicted as dark coloured region. The water jet device 3 comprises a discharge outlet 15 shown in fig. 3 for providing the water jet 5 and a water inlet 15, 13 of fig. 2 and 3. The water inlet 15, 20 13 is coupled with the accommodation 6 for supplying water to the accommodation 6.
Here an inlet 13 may be provided with the tooth holder 7 which inlet 13 is shown in broken lines. The inlet 13 may be coupled with a valve (not shown) for maintaining water under pressure in the accommodation 6. As shown here, the outlet 15 also may act as an inlet for supplying water to the accommodation 6. Therefore, the inlet and the 25 outlet 15 are coupled with the accommodation 6 via a common conduit 11 for providing the water jet 5 and for supplying water to the accommodation 6.
When the cutting device 1 is in use, the cutting force F increases pressure of the water in the accommodation 6 such that water is displaced from the accommodation 6 to 30 provide the water jet 5. Here, the cutting device 1 comprises no pump for providing the water jet 5 which is beneficial in view of complexity and cost of ownership of the cutting device 1, specifically of the water jet device 3 thereof. Here, the cutting device 1 7 comprises a tooth holder 7 for replaceably holding the cutting tooth 2 in connection with maintainability and up time of the cutting device 1.
In fig. 2 it is shown that the cutting tooth 2 is moveably coupled with the cutting tooth holder 7 for advancing the cutting tooth 2 in the accommodation 6 while exerting 5 a cutting force F, for displacing water from the accommodation 6 for providing the water jet 5. Here, the cutting tooth 2 moves like a plunger within the cutting tooth holder 7. Here, the cutting device 1 is provided with a sealing ring 10 which contributes to a sealing coupling of the tooth holder 7 and the cutting tooth 2.
In this case, the accommodation 6 is part of the cutting tooth 2, see fig 1. The 10 accommodation 6 may be part of the tooth holder 7. The accommodation 6 is coupled with the cutting tooth 2 in a sealing manner. It is conceivable that the accommodation 6 is formed onto the cutting tooth 2. Here, the accommodation 6 is formed of resilient rubber 8 for filling the accommodation 6 when the cutting tooth 2 does not exert the cutting force on a layer of sand (not shown). This is beneficial and feasible because a 15 cutting tooth 2 does not engage with a layer of sand for a large part of an operating cycle. The resilient rubber 8 drives the cutting tooth 2 and the accommodation 6 increases its volume to take in water into the accommodation 6.
The accommodation filling system for filling the accommodation 6 with water while the cutting tooth 2 does not exert the cutting force F on a layer to be treated, is 20 here formed by the tensioning system 9 and the accommodation 6 being made of a resilient rubber which contributes to the tensioning system, as well as formed by the conduit 12, 12a provided with the tooth holder 7 or the conduit 11 provided with the cutting tooth 2. The conduit 12 extends transversely with respect to the central axis 16 of the cutting device. The conduit 12 has an inlet 13 for supplying water to the 25 accommodation 6. Alternatively, the conduit 12a extends substantially in parallel with respect to the central axis 16 of the cutting device. The conduit 12a has an inlet 13a for supplying water to the accommodation 6. The inlet 13a of conduit 12a is provided with the tooth holder 7 and opposite and remote from the cutting edge 4. The conduit 12a is more easy to manufacture. In addition the position of the inlet 13a opposite and remote 30 from the cutting edge 4 is beneficial in view of undesired intake of excavated matter which may congest the accommodation filling system or reduce the operational life of the entire cutting device 1.
8
The accommodation 6 is here arranged between the cutting tooth 2 and the tooth holder 7. This facilitates the alignment of the accommodation 6 with the cutting force F which enables to obtain a compact cutting device. The cutting device 1, specifically the 5 accommodation filling system thereof, comprises a schematically depicted spring element 17 for filling the accommodation 6 when the cutting tooth 2 does not engage with a layer of sand. Here, the spring element 17 is arranged between the accommodation 6 and the cutting tooth 2.
When the cutting device 1 is in use, the cutting force increases the pressure of the 10 water in the accommodation 6 such that water is displaced from the accommodation 6 to provide the water jet 5 for facilitating the excavation of the layer of sand.
In fig. 3 an embodiment is shown, wherein the accommodation 6 is coupled with, preferably formed with, more preferably integrally formed with, a conduit 14 which 15 conduit extends in the cutting tooth 2 for debouching water at the outlet 15. The cutting tooth 2 is partly shown. The accommodation 6 being coupled with a conduit 14 which extends in the cutting tooth 2 simplifies the cutting device 1 in terms of coupling between the cutting tooth 2 and the tooth holder 7. Moreover, the coupling of the outlet 15 and the accommodation 6 is more simple and robust..
20
It will also be obvious after the above description and drawings are included to illustrate some embodiments of the invention, and not to limit the scope of protection. Starting from this disclosure, many more embodiments will be evident to a skilled person which are within the scope of protection and the essence of this invention and 25 which are obvious combinations of prior art techniques and the disclosure of this patent.

Claims (24)

1. Snijinrichting (1) voor een onderwater ontgravingsysteem, waarbij de snijinrichting omvat, 5. een snijtand (2) beweegbaar gerangschikt met de snijinrichting, en voorzien van een snijkant (4) voor het uitoefenen van een snijkracht op een te bewerken laag, - een waterstraal inrichting (3) voor het verschaffen van een waterstraal (5) bij de snijkant voor het vergemakkelijken van de bewerking van de laag, waarbij de waterstraal inrichting een accommodatie (6) omvat voor het houden van 10 water onder druk daarin, waarbij de snijkracht de druk in de accommodatie verhoogt voor het verdringen van water uit de accommodatie voor het verschaffen van de waterstraal.1. Cutting device (1) for an underwater excavation system, wherein the cutting device comprises, 5. a cutting tooth (2) movably arranged with the cutting device, and provided with a cutting edge (4) for exerting a cutting force on a layer to be processed, a water jet device (3) for providing a water jet (5) at the cutting edge to facilitate machining of the layer, the water jet device comprising an accommodation (6) for holding water under pressure therein, the cutting force increases the pressure in the accommodation to displace water from the accommodation to provide the water jet. 2. Snijinrichting volgens conclusie 1, waarbij de snijinrichting geen pomp omvat voor 15 het verstrekken van de waterstraal, zodanig dat de waterstraal alleen door de snijkracht veroorzaakt wordt.2. Cutting device according to claim 1, wherein the cutting device does not comprise a pump for supplying the water jet, such that the water jet is only caused by the cutting force. 3. Snij inrichting volgens een voorgaande conclusie, omvattend een tandhouder voor het houden van de snijtand op een wisselbare wijze. 203. Cutting device as claimed in any of the foregoing claims, comprising a tooth holder for holding the cutting tooth in an exchangeable manner. 20 4. Snijinrichting volgens conclusie 3, waarbij de snijtand beweegbaar is gekoppeld met de tandhouder voor het, onder uitoefening van een snijkracht, in de accommodatie toevoeren van de snijtand, voor het verdringen van water uit de accommodatie voor het verschaffen van de waterstraal. 254. Cutting device as claimed in claim 3, wherein the cutting tooth is movably coupled to the tooth holder for supplying the cutting tooth into the accommodation, exerting a cutting force, for displacing water from the accommodation for supplying the water jet. 25 5. Snijinrichting volgens een voorgaande conclusie, waarbij de accommodatie deel uitmaakt van de snijtand.5. Cutting device as claimed in any of the foregoing claims, wherein the accommodation forms part of the cutting tooth. 6. Snijinrichting volgens conclusie 5, waarbij de accommodatie is gekoppeld met de 30 snijtand op een afdichtende wijze.6. Cutting device as claimed in claim 5, wherein the accommodation is coupled to the cutting tooth in a sealing manner. 7. Snijinrichting volgens een voorgaande conclusie, waarbij de accommodatie ten minste gedeeltelijk is gevormd met de snijtand.7. Cutting device as claimed in any of the foregoing claims, wherein the accommodation is formed at least partially with the cutting tooth. 8. Snij inrichting volgens conclusie 7, waarbij de accommodatie is gerangschikt tussen de snijtand en de tandhouder.The cutting device of claim 7, wherein the accommodation is arranged between the incisor and the tooth holder. 9. Snij inrichting volgens een voorgaande conclusie, waarbij de accommodatie deel uitmaakt van de tandhouder.9. Cutting device as claimed in any of the foregoing claims, wherein the accommodation forms part of the tooth holder. 10. Snij inrichting volgens een voorgaande conclusie, omvattend een accommodatie vulsysteem voor het vullen van de accommodatie met water terwijl de snijtand geen 10 snijkracht uitoefent op een te bewerken laag.10. Cutting device as claimed in any of the foregoing claims, comprising a accommodation filling system for filling the accommodation with water while the cutting tooth does not exert any cutting force on a layer to be processed. 11. Snij inrichting volgens conclusie 10, waarbij het accommodatie vulsysteem een spansysteem (9) omvat voor het spannen van de tand in een richting ten minste gedeeltelijk tegenover de snijkracht voor het vullen van de accommodatie met water 15 wanneer de snijtand geen snijkracht uitoefent op een te bewerken laag.11. Cutting device according to claim 10, wherein the accommodation filling system comprises a tensioning system (9) for tensioning the tooth in a direction at least partially opposite the cutting force for filling the accommodation with water when the cutting tooth does not exert a cutting force on a layer to edit. 12. Snij inrichting volgens een voorgaande conclusie, waarbij de accommodatie is gevormd uit veerkrachtig rubber, en waarbij, bij voorkeur, de accommodatie deel uitmaakt van het spansysteem. 20A cutting device as claimed in any preceding claim, wherein the accommodation is formed from resilient rubber, and wherein, preferably, the accommodation forms part of the clamping system. 20 13. Snij inrichting volgens een voorgaande conclusie 11-12, waarbij het spansysteem is gerangschikt tussen de snijtand en de tandhouder.A cutting device according to any preceding claim 11-12, wherein the clamping system is arranged between the incisor and the tooth holder. 14. Snij inrichting volgens een voorgaande conclusie, waarbij de accommodatie is 25 gekoppeld met, bij voorkeur gevormd met, een leiding (14), welke leiding zich ten minste gedeeltelijk in de snijtand uitstrekt voor uitmonding van water bij de uitlaat.14. Cutting device as claimed in any of the foregoing claims, wherein the accommodation is coupled to, preferably formed with, a pipe (14), which pipe extends at least partially in the cutting tooth for discharging water at the outlet. 15. Snij inrichting volgens een voorgaande conclusie, waarbij de waterstraal inrichting een uitstroom uitlaat (15) omvat voor het verschaffen van de waterstraal, en een 30 waterinlaat (15, 13, 13a) verbonden met de accommodatie voor het toevoeren van water aan de accommodatie.15. Cutting device according to a preceding claim, wherein the water jet device comprises an outflow outlet (15) for providing the water jet, and a water inlet (15, 13, 13a) connected to the accommodation for supplying water to the accommodation . 16. Snijinrichting volgens conclusie 15, waarbij de inlaat (13, 13a) aan de tandhouder is voorzien.Cutting device according to claim 15, wherein the inlet (13, 13a) is provided on the tooth holder. 17. Snijinrichting volgens een voorgaande conclusie van 15-16, waarbij de inlaat (13a) 5 is voorzien aan de tandhouder en tegenover en verwijderd van de snijkant (4).Cutting device according to a preceding claim of 15-16, wherein the inlet (13a) 5 is provided on the tooth holder and opposite and removed from the cutting edge (4). 18. Snijinrichting volgens een voorgaande conclusie 15-17, waarbij de inlaat (13, 13a) is verbonden met een klep voor het houden van water onder druk in de accommodatie.The cutting device of any preceding claim 15-17, wherein the inlet (13, 13a) is connected to a valve for holding water under pressure in the accommodation. 19. Snijinrichting volgens een voorgaande conclusie 15-18, waarbij de inlaat en de uitlaat met de accommodatie zijn verbonden via een gemeenschappelijke leiding (11) voor het verschaffen van de waterstraal en voor het toevoeren van water aan de accommodatie.The cutting device according to any preceding claim 15-18, wherein the inlet and the outlet are connected to the accommodation via a common conduit (11) for providing the water jet and for supplying water to the accommodation. 20. Baggersysteem omvattend een snijinrichting volgens een voorgaande conclusie.A dredging system comprising a cutting device according to a preceding claim. 21. Diepzee mijnbouw systeem omvattend een snijinrichting volgens een voorgaande conclusie.A deep-sea mining system comprising a cutting device according to a preceding claim. 22. Werkwijze voor een snijinrichting volgens een voorgaande conclusie, waarbij de methode de stap omvat; - vergroten van de druk in de accommodatie door een toename van de snijkracht voor het verplaatsen van water uit de accommodatie voor het verschaffen van de waterstraal bij de snijkant ter vergemakkelijking van de bewerking van de te bewerken laag. 25A method for a cutting device as claimed in any preceding claim, wherein the method comprises the step; - increasing the pressure in the accommodation by increasing the cutting force for displacing water from the accommodation to provide the water jet at the cutting edge to facilitate processing of the layer to be processed. 25 23. Gebruik van een snijinrichting volgens een voorgaande conclusie in een baggersysteem.Use of a cutting device according to a preceding claim in a dredging system. 24. Gebruik van een snijinrichting volgens een voorgaande conclusie in een diepzee 30 mijnbouw systeem. -o-o-o-o-o-o-24. Use of a cutting device according to a preceding claim in a deep-sea mining system. -o-o-o-o-o-o-
NL2007488A 2011-09-28 2011-09-28 Cutting device. NL2007488C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL2007488A NL2007488C2 (en) 2011-09-28 2011-09-28 Cutting device.
PCT/NL2012/050673 WO2013048241A1 (en) 2011-09-28 2012-09-25 Cutting device for an underwater excavation system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2007488A NL2007488C2 (en) 2011-09-28 2011-09-28 Cutting device.
NL2007488 2011-09-28

Publications (1)

Publication Number Publication Date
NL2007488C2 true NL2007488C2 (en) 2013-04-02

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NL2007488A NL2007488C2 (en) 2011-09-28 2011-09-28 Cutting device.

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WO (1) WO2013048241A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107725049B (en) * 2017-10-31 2024-05-14 长安大学 Self-pressurization type anti-blocking hydraulic cutting pick device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569558A (en) * 1983-07-25 1986-02-11 The Regents Of The University Of California Drag bit construction
US4836613A (en) * 1984-10-09 1989-06-06 Adam Roger F J Cutterhead for water jet assisted cutting
WO2005093215A1 (en) * 2004-01-17 2005-10-06 Pukyong National University Industry-University Cooperation Foundation Collecting and lifting methods of manganese nodule and mining device
BE1016085A5 (en) * 2004-06-23 2006-02-07 Dredging Int Drag head for trailing suction dredger, includes rotary cutting device comprising driven rotary body with cutting head
EP1653009A1 (en) * 2004-10-26 2006-05-03 Ihc Holland N.V. Cutting member for a dredging system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1387237A (en) * 1963-12-17 1965-01-29 Charbonnages De France Advanced device for attaching cutting tools of the type cutting pick
EP0167236B1 (en) 1984-05-04 1988-07-13 Minnovation Limited Mineral cutting device, water supply lance and cutter pick
DE3521560A1 (en) * 1985-06-15 1986-05-28 Fried. Krupp Gmbh, 4300 Essen Excavator and method of operating it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569558A (en) * 1983-07-25 1986-02-11 The Regents Of The University Of California Drag bit construction
US4836613A (en) * 1984-10-09 1989-06-06 Adam Roger F J Cutterhead for water jet assisted cutting
WO2005093215A1 (en) * 2004-01-17 2005-10-06 Pukyong National University Industry-University Cooperation Foundation Collecting and lifting methods of manganese nodule and mining device
BE1016085A5 (en) * 2004-06-23 2006-02-07 Dredging Int Drag head for trailing suction dredger, includes rotary cutting device comprising driven rotary body with cutting head
EP1653009A1 (en) * 2004-10-26 2006-05-03 Ihc Holland N.V. Cutting member for a dredging system

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