EP0169616B1 - Davit für ein Baggerschiff - Google Patents

Davit für ein Baggerschiff Download PDF

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Publication number
EP0169616B1
EP0169616B1 EP19850201196 EP85201196A EP0169616B1 EP 0169616 B1 EP0169616 B1 EP 0169616B1 EP 19850201196 EP19850201196 EP 19850201196 EP 85201196 A EP85201196 A EP 85201196A EP 0169616 B1 EP0169616 B1 EP 0169616B1
Authority
EP
European Patent Office
Prior art keywords
crane
derrick
hinge
arrangement
operating mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19850201196
Other languages
English (en)
French (fr)
Other versions
EP0169616A1 (de
Inventor
Bastiaan Cornelis Maria Koot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydromeer BV
Original Assignee
Hydromeer 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19844220&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0169616(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hydromeer BV filed Critical Hydromeer BV
Publication of EP0169616A1 publication Critical patent/EP0169616A1/de
Application granted granted Critical
Publication of EP0169616B1 publication Critical patent/EP0169616B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
    • B63B23/06—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with actual pivots
    • B63B23/10—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with actual pivots with positive drive of the arms
    • 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
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes

Definitions

  • the invention relates to a derrick-crane for a dredging vessel, which said derrick-crane is arranged to displace a movable tubular portion of a towed suction-dredging equipment between its rest position inboard and its dredging position outboard and in which the said derrick-crane is of tubular construction and closed form and is enabled to pivot to a substantially horizontal position about axes arranged parallel with the deck and under the control of at least one operating mechanism hereof, and in which the said operating mechanism is pivotally hinged between a first hinge-arrangement affixed to the derrick-crane and a second hinge-arrangement affixed to the vessel, whereas the derrick-crane in side-elevation is of mainly of "L" form and which is pivotally affixed to the deck at one end of the short leg thereof, and in which said short leg is provided with two separate and mutually parallel extremities for the second hinge-arrangement.
  • a derrick-crane of this type is known from NL-B-168.291.
  • the short leg of this particular derrick-crane lies on the deck in its rest position and pivots about the axis of a hinge-pin located in a position nearby to the outboard extremity thereof.
  • This pivoting displacement is effected under the control of an operating mechanism incorporating at least one hydraulically-operated piston and cylinder assembly.
  • an operating mechanism incorporating at least one hydraulically-operated piston and cylinder assembly.
  • the object of the invention is to remove these objections and to provide a derrick-crane having a compact operating mechanism and a hydraulic system integral with the derrick-crane itself and which is completely independent of the hydraulic system, if any, of the vessel on which it is installed.
  • this object is achieved by the fact that the rear and underside of the derrick-crane is provided with a slot-hole to permit passage of the said operating mechanism there through, that the said first hinge-arrangement is accommodated in the slot on the inboard side of the long leg, whereas the second hinge-arrangement is affixed in a position near the position assumed by the lower end of the long leg of the derrick-crane in its rest position, and in which the said operating mechanism in its rest position extends mainly into the said slot of the derrick-crane, and that the said extremities are arranged on supporting-limbs which forms a considerable part of the length of the short leg.
  • the derrick-crane occupies a minimum of deck space both in the rest position and in the operating position so that installation on both new vessels and existing vessels with narrow passageways is possible.
  • a derrick-crane which is mounted on the back of a truck and is designed for handling containers, such as railway containers, between this truck and a railway car.
  • This derrick-crane comprises two parallel "L" shaped lifting arms connected by a horizontal branch and thus forming a portal or arch.
  • This open portal is pivoted at each lower leg to the sides of a support frame fastened on the longitudinal chassis girders of the truck.
  • the portal or arch is displaced by two parallel piston and cylinder assemblies, that are each arranged at the inside of the "L" shaped lifting arms.
  • a supply-tank for the hydraulic medium together with the other parts of the hydraulic system are integrally incorporated in the derrick-crane.
  • the derrick-crane according to the invention is destined for fixing to the deck 1 and surrounded by the side of the vessel 2, the hatch coaming 7 and the hold H of the dredging vessel (not shown).
  • Two separate pairs of parallel arranged hinge-ears (3, 3a) and (4, 4a) bordering the edge of the vessel's side are welded to the deck and through which two substantially-horizontal and co-axial hinge-pins 5 and 5a are arranged parallel to the vessel's side 2 to which support-plates 6 and 6a are fixed.
  • a second hinge-arrangement cmprising hinge-ears 8 and 8a are welded to the deck 1 against the superstructure 7 on the inboard side and through which a hinge-pin 9 is arranged and which runs parallel to the hinge-pins 5 and 5a.
  • Figure 1 shows a side-levation of a derrick-crane of substantially 'L' form and having a short lower-arm generally indicated by the reference numeral 10, and a long upper-arm generally indicated by the reference numeral 13.
  • Figure 2 shows that the crane arm 10, 13 is of a boxlike or tubular form and preferably constructed of plate material, and it will be seen that it tapers somewhat in the vertical direction.
  • the short under-arm is provided with two diverging limbs 11, 11a, the drilled and parallel extremities 12, 12a of which extend between the pairs of ears 3, 4 and 3a, 4a respectively and pivot about the axis of the hinge-pins 5, 5a.
  • the rear and underside of the derrick-crane are provided with a slot (not shown) for accommodating the operating mechanism.
  • the hinge-pin 14 is fixed in the upper portion of this slot in the long leg 13 and runs parallel with hinge-pins 5, 5a.
  • the operating mechanism for the derrick-crane is hinged at its upper end to pivot about the axis of hinge-pin 14, this mechanism is preferably constituted by a hydraulically-operated reciprocating piston 15 operatively arranged in a cylinder 16.
  • the free lower- end 17 of the piston is coupled to the hinge-pin 9.
  • the derrick-crane is shown in its operating position in the drawings and in which the piston 15 is shown in its extended position from the cylinder 16. On withdrawal of the piston 15 back into the cylinder 16, the long arm 13 is displaced at a small angle to the vertical between the side of the vessel 2 and the superstructure 7.
  • the coaxially arranged hydraulic driving motor 20 and the cable-winch 21 coupled thereto are affixed to the exterior side of the derrick-crane under the short leg 10.
  • the swell-compensator is affixed on the exterior of the derrick-crane under the long crane leg 10.
  • This swell-compensator comprises the hydraulic cylinder 22 in which the hydraulically-operated piston 23 reciprocates.
  • a number (say 2 for example) of cable-sheaves 25 are rotatably mounted on the upper side of the cylinder 22 and a set (say 2 for example) of cable-sheaves 26 are rotatably mounted on the lower end of the piston 23.
  • the set of cable-sheaves can extend outward from the position defined by the dashed-line in Figure 1 to a maximum distance defined by the dashed-line 26' that is to say over a distance defined by 'L'.
  • this stroke-length 'L' multiplied by 4 and with 2 upper sheaves 25 and two lower sheaves 26, the hoisting-cable 27 can be shortened or lengthened according to the vertical movement of the dredging vessel and/or the suction pipe 28 resulting from wave motion.
  • a cable-sheave 29 is rotatably mounted on a hinge-pin 30 at the upper end of the long crane- leg 13 and which hinge-pin 30 is arranged parallel to the hinge-pins 5, 5a.
  • a guide roller 31 is rotatably mounted on a spindle 32 which crosses the hinge-pin 30 perpendicular thereto. This spindle 32 lies substantially in a horizontal position when the derrick-crane is in the operating position shown in Figure 1.
  • the guide roller 31 serves to guide the cable 27 which makes an angle a to the horizontal when in the operating position and as shown in Figure 2.
  • the angle a made by the cable 27 to the horiziontal changes just as do the angles of the derrick-crane arms 10, 13 about the axes of the hinge-pins 5, 5a when the cable 27 is hoisted in and/or paid out.
  • a suction-pipe cradle 33 for accomodating the suction-pipe 28 in its rest position is provided in the cavity between the short leg 10 and the long leg 13.
  • the supply-tank 34 for the hydraulic medium is accommodated in the short arm 10, this supply-tank 34 forms part of the hydraulic system together with the hydraulic-pump 35 driven by the electric motor 19.
  • This hydraulic system feeds the piston and cylinder assembly 15, 16, the winch-motor 20 and the piston and cylinder assembly 23, 22 of the swell-compensator. Due to this form of construction, the derrick-crane has a completely integral hydraulic system which is entirely independent of the hydraulic system of the dredging vessel on which the derrick-crane has been installed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)

Claims (3)

1. Derrickkran (10,13) für ein Baggerfahrzeug (2) zum Verlagern eines beweglichen Rohrabschnitts (28 einer geschleppten Saugbaggeranlage zwischen seiner Binnenbords-Ruhelage und seiner Außenbords-Arbeitslage, wobei der Derrickkran eine geschlossene Rohrkonstruktion (10, 13) aufweist und unter Steuerung durch wenigstens einen Antrieb (15, 16) um parallel zum Deck angeordnete Achsen in eine im wesentlichen waagerechte Stellung verschwenkbar ist, wobei der Antrieb gelenkig mit einer am Derrickkran angebrachten ersten Gelenkanordnung (14) und einer auf dem Fahrzeug (2) befestigten zweiten Gelenkanordnung (8, 8a, 9) verbunden ist, und wobei der Derrickkran (10, 13) in Seitenanschicht im wesentlichen L-förmig ist und mit einem Ende des kürzeren Schenkels (10) schwenkbar auf dem Deck gelagert ist, und wobei der kürzere Schenkel (10) zwei getrennte und zueinander parallele Endstücke (12,12a) für die zweite Gelankanordnung (8, 8a, 9) aufweist dadurch gekennzeichnet, daß der Derrickkran an der Rückseite und der Unterseite einen Schlitz für den Durchgriff des Antriebs (15, 16) hat, daß die erste Gelenkanordnung (14) in dem Schlitz an der Binnenbordsseite des längeren Schenkels (13) untergebracht ist, während die zweite Gelenkanordnung (8, 8a, 9) nahe einer Stellte angebracht ist, an welcher sich das untere Ende des längeren Schenkels (13) des Derrickkrans in dessen Ruhestellung befindet, daß sich der Antrieb (15, 16) in seiner Ruhestellung zum größten Teil in den Schlitz des Derrickkrans (10, 13) hinein erstreckt, und daß die Endstücke an Stützgliedern (11, 11a) ausgebildet sind, welche einen beträchtlichen Teil der Länge des kürzeren Schenkels (10) ausmachen.
2. Derrickkran nach anspruch 2, mit einer hydraulischen Anlage (20) für den Betrieb einer Hubwinde (21) und des Antriebs (15,16), dadurch gekennzeichnet, daß ein Vorratsbehälter (34) für das hydraulische Druckmittel zusammen mit den anderen Teilen der hydraulischen Anlage in den Aufbau des Derrickkrans einbezogen ist.
3 Derrickkran nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Elektromotor (19) für den Antrieb einer Hydraulikpumpe (35) zwischen den Stützgliedern (11,11 a) des kürzeren Schenkels (10) an der Außenseite desselben angeordnet ist.
EP19850201196 1984-07-15 1985-07-15 Davit für ein Baggerschiff Expired EP0169616B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8402240 1984-07-15
NL8402240A NL8402240A (nl) 1984-07-15 1984-07-15 Bokkraan voor een baggervaartuig.

Publications (2)

Publication Number Publication Date
EP0169616A1 EP0169616A1 (de) 1986-01-29
EP0169616B1 true EP0169616B1 (de) 1988-09-28

Family

ID=19844220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850201196 Expired EP0169616B1 (de) 1984-07-15 1985-07-15 Davit für ein Baggerschiff

Country Status (3)

Country Link
EP (1) EP0169616B1 (de)
DE (2) DE8434738U1 (de)
NL (1) NL8402240A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858495B (zh) * 2016-03-30 2017-11-24 亳州市爱开发网络科技有限公司 一种建筑起吊装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071254A (en) * 1959-12-30 1963-01-01 Clark Equipment Co Tractor with boom attachment
FR1356379A (fr) * 1963-02-13 1964-03-27 Bennes Marrel Perfectionnements aux dispositifs de grues mobiles destinés à équiper des camions et autres véhicules analogues
US3764020A (en) * 1971-07-26 1973-10-09 Logging Syst Inc Skidder boom for tractor vehicles
NL168291C (nl) * 1979-03-11 1982-03-16 Breejen Beheer Kraan voor een sleepzuiginrichting van een baggervaartuig.

Also Published As

Publication number Publication date
NL8402240A (nl) 1986-02-03
DE8434738U1 (de) 1985-03-14
DE3565294D1 (en) 1988-11-03
EP0169616A1 (de) 1986-01-29

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