FR2687978A1 - Device for balancing a vessel in particular during rolling - Google Patents

Device for balancing a vessel in particular during rolling Download PDF

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Publication number
FR2687978A1
FR2687978A1 FR9202303A FR9202303A FR2687978A1 FR 2687978 A1 FR2687978 A1 FR 2687978A1 FR 9202303 A FR9202303 A FR 9202303A FR 9202303 A FR9202303 A FR 9202303A FR 2687978 A1 FR2687978 A1 FR 2687978A1
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FR
France
Prior art keywords
ballast
characterized
device according
balancing device
cable
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.)
Granted
Application number
FR9202303A
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French (fr)
Other versions
FR2687978B1 (en
Inventor
Reber Jean-Daniel
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.)
TechnicAtome SA
Original Assignee
TechnicAtome SA
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 TechnicAtome SA filed Critical TechnicAtome SA
Priority to FR9202303A priority Critical patent/FR2687978B1/en
Publication of FR2687978A1 publication Critical patent/FR2687978A1/en
Application granted granted Critical
Publication of FR2687978B1 publication Critical patent/FR2687978B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/02Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses

Abstract

A ballast (1) is movable on a track under the action of a motor (10) which drives a cable (4), advantageously in a loop, to which cable the ballast (1) is attached. The ballast consists of a solid mass and advantageously of rollers which roll on the track. Application to correcting the heel of vessels, in particular during rolling. <IMAGE>

Description

SHIP BALANCING DEVICE, ESPECIALLY
IN ROLL
DESCRIPTION
The invention relates to a device for balancing a ship, in particular in roll.

Some ships have devices to dynamically correct their inclination. To the knowledge of the inventors, it is always a question of liquid capacities distributed between two places of the ship (near the side plating for roll corrections) and which communicate with each other. A pump allows liquid to flow from a capacity to
The other as needed. These devices are however inconvenient because they are relatively slow and more The liquid can lapping in the capacities, which is another cause of disturbance of the balance.

The invention consists in an improvement of the balancing devices of ships and more precisely in a device of a new kind, characterized in that it comprises at least one track on
Which circulates a solid ballast by means of a motor system. We can use as many of these devices as we want for the total balancing of the ship.

 The large weight of the Ballast can make its transport difficult. This is why it is recommended, in a preferred embodiment of the invention, that the ballast consists of a train of rollers rolling on the track.

It is also possible to add solid masses introduced between the rollers.

 The engine system may comprise a ballast traction cable and in particular a loop stretched between two ends of the track and hung on two opposite sides of the ballast. The same cable is then used for both directions of ballast movement and is best operated by a single reversible motor. If the ballast consists of rollers provided with axes of rotation, the cable advantageously comprises a chain part formed of links in which these axes are engaged.

 Another optional and advantageous arrangement of the invention consists of a ballast braking or blocking device which is, in the envisaged embodiment, integral with the ballast, therefore belongs to it and consists of at least one rocking lever rubbing against a parallel rail. to the track during a braking state which can be controlled very simply by the cable: it is then hooked to the lever and provided with a tensioning means for tilting the lever.

We will now proceed to the detailed description of the invention by means of the following figures which are annexed by way of illustration and not limitation:
- Figure 1 shows a general view of
The invention,
FIGS. 2a and 2b show the solid ballast in side and top views, and
- Figure 3 shows a cross section of the track and the ballast.

The ballast i shown in FIG. 1 is hung by its two opposite sides 2 and 3 at two ends of a looped cable 4 which is stretched over two movable pulleys or tensioners 5 and 6, two fixed pulleys or sheaves 7 and 8, and a driving pulley or drum 9. The sheaves 7 and 8 are respective neighbors of the tensioners 5 and 6 and keep straight a portion of the loop parallel to that which is stretched between the tensioners 5 and 6 and to which the ballast 1 is attached. The drum 9 is located along the cable 4 between a tensioner 6 and a
sheave 8. It is driven by a motor 10 by means of a coupling 11 and a reduction gear 12 terminated by a drive pinion 13 which meshes with a ring gear 16 established on one of the flanges of the drum 9.

 The tensioners 5 and 6 are articulated to the rod of jacks 14 and 15 respectively, the cylinder of which is attached to fixed parts of the ship. The axes of the sheaves 7 and 8 and of the drum 9, as well as the motor 10 and the reduction gear 12, are also fixed to the ship. The cylinders 14 and 15 are controlled by a device that is not shown.

Referring now to Figure 2. The ballast 1 consists of a train of rollers 19 rolling around transverse axes 20 and between which there are monkfish masses 21 whose section is substantially in the shape of a diabolo, so that they are retained between the rollers 19. FIG. 3 shows that the rollers 19 are in fact made up of half rollers 22 and 23 on both sides of the axes 20 and around which they rotate by means of ball bearings all referenced by 24. The half rolls 22 and 23 are each supported by a rail 25 or 26 fixed to the ship and disposed in front of the ends of the axes 20; the pair of rails 25 and 26 forms a ballast track 1 which extends substantially to the tensioners 5 and 6 and to the sheaves 7 and 8. The part of the cable 4 which is stretched between the sheaves 7 and 8 passes substantially at the bottom of the half-rollers 22 and 23 and rolls on fixed rollers 27. The other part of the loop, placed between the tensioners 5 and 6 and responsible for
The feed of the train of rollers 19 is located a little above the previous one but also below the axes 20. Shock buffers 28 are located at the two ends of the train and are rigidly connected to the corresponding axes 20 by bolts 29 (see also Figure 2b). The axes 20 are interconnected by lacquers constituting links of two chains 45 and 46 close to the half-rollers 22 and 23 respectively, and each of which is formed by two layers of articulated links 47 between them by pivots 48 midway between the axes 20; the links 47 of the two layers alternate along the chains 45 and 46. They are rigidly connected to the axes 20.

 The way in which the cable 4 is fixed to the roller train 4 will soon be described.

 There is an upper rail 30 which extends a little above the links 47 and between the half-rollers 22 and 23, parallel to the track.

 It is used to facilitate braking or blocking the ballast 1. This effect is due to a wagon 34 provided with lower 35 and upper 36 rollers on the soles of the rails 25 and 26; the wagon 34 still carries a pair of levers 37 and 38 whose lower ends are articulated to it and whose upper ends arrive close to the upper rail 30. A spring 39 unites the levers 37 and 38 and brings them together, and the part of the cable 4 which is located between the tensioners 5 and 6 is interrupted on the wagon 34 so that its ends can be hooked respectively to each of the levers 37 and 38. It is easily understood that if the jacks 14 and 15 are retracted, the tensioners 5 and 6 s 'move away, which increases the tension of the cable 4 and causes the levers 37 and 38 to tilt and straighten until they detach from the upper rail 30: the movement of the ballast 1 becomes possible. An opposite movement of the jacks 14 and 15 makes it possible to block it by means of the spring 39 which again brings the levers 37 and 38 closer until their upper surface rubs against the upper rail 30. The representation of FIG. 1 is not entirely faithful for reasons of clarity: the cable 4 actually extends under the rollers 19, and the upper rail 30 extends over the entire length of the track.

 The links 47 adjacent to the wagon 34 are attached to it by rivets 49. The braking of the moving ballast 1 is ensured by electromagnetic parts in the coupling 11 or by another known device.

 This balancing device is simple and compact, especially since very dense materials such as lead can be used to form the rollers 19. The control can be carried out with much more precision and speed than for a liquid system.

Claims (10)

 1. Device for balancing a ship, in particular in roll, characterized in that it comprises at least one track (25, 26) on which a
Solid ballast (1) by means of a motor system (4, 10).
 2. Balancing device according to claim 1, characterized in that the solid ballast consists of a train of rollers (19) rolling on the track.
 3. Balancing device according to claim 2, characterized in that the solid ballast comprises solid masses (21) introduced between the rollers.
 4. Balancing device according to any one of claims 1 to 3, characterized in that the motor system comprises a cable (4) for pulling the ballast (1).
 5. Balancing device according to claims 2 and 4, characterized in that the cable comprises a chain part formed of links (47) in which of the rolling axes (20) of the rollers (19) are engaged.
 6. Balancing device according to claim 4 or 5, characterized in that the cable forms a loop stretched between two ends (5, 6) of the track (25, 26) and hung on two opposite sides (2, 3) ballast (1).
 7. Balancing device according to any one of claims 1 to 6, characterized in that it comprises a blocking device (30, 34) for the ballast.
 8. Balancing device according to claim 7, characterized in that the blocking device is integral with the ballast.
 9. Balancing device according to claim 8, characterized in that the blocking device consists of at least one lever (37, 38) tilting and coming to rub against a spoke l (30) parallel to the track in a blocking position .
 10. Balancing device according to claims 4 and 9, characterized in that the cable is hooked to the lever and provided with tensioning means (14, 15) for tilting the lever (37, 38).
FR9202303A 1992-02-27 1992-02-27 Balancing device for ships, particularly in rolls. Expired - Fee Related FR2687978B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9202303A FR2687978B1 (en) 1992-02-27 1992-02-27 Balancing device for ships, particularly in rolls.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9202303A FR2687978B1 (en) 1992-02-27 1992-02-27 Balancing device for ships, particularly in rolls.

Publications (2)

Publication Number Publication Date
FR2687978A1 true FR2687978A1 (en) 1993-09-03
FR2687978B1 FR2687978B1 (en) 1998-05-07

Family

ID=9427114

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9202303A Expired - Fee Related FR2687978B1 (en) 1992-02-27 1992-02-27 Balancing device for ships, particularly in rolls.

Country Status (1)

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FR (1) FR2687978B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802504A1 (en) 1999-12-20 2001-06-22 Technicatome Improved device for balancing a vessel especially rolling
FR2802891A1 (en) * 1999-12-23 2001-06-29 Bernard Canal Sailing boat list controlling system comprises ballast balls which can be moved round closed circuit to compensate for list
EP1304289A1 (en) 2001-10-18 2003-04-23 Société Technique pour l'Energie Atomique TECHNICATOME Arrangement for balancing ships of low tonnage
EP2952426A1 (en) * 2009-09-04 2015-12-09 Itrec B.V. Offshore wind turbine installation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE349886C (en) * 1922-03-09 Naamlooze Vennootschap Werf Co A device for locking of a mobile ballast weight on ships or pontoons at rupture of the traction cable or other disturbances
US3809000A (en) * 1971-08-04 1974-05-07 Secretary Trade Ind Brit Passive roll stabilisers
FR2408513A1 (en) * 1977-11-11 1979-06-08 Vickers Shipbuilding Group Ltd Stabilizer moving mass to ship or similar
FR2552391A1 (en) * 1983-09-28 1985-03-29 Julian Yvon Hull with movable ballast means, for sail boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE349886C (en) * 1922-03-09 Naamlooze Vennootschap Werf Co A device for locking of a mobile ballast weight on ships or pontoons at rupture of the traction cable or other disturbances
US3809000A (en) * 1971-08-04 1974-05-07 Secretary Trade Ind Brit Passive roll stabilisers
FR2408513A1 (en) * 1977-11-11 1979-06-08 Vickers Shipbuilding Group Ltd Stabilizer moving mass to ship or similar
FR2552391A1 (en) * 1983-09-28 1985-03-29 Julian Yvon Hull with movable ballast means, for sail boat

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802504A1 (en) 1999-12-20 2001-06-22 Technicatome Improved device for balancing a vessel especially rolling
EP1110857A2 (en) 1999-12-20 2001-06-27 TECHNICATOME Société Technique pour l'Energie Atomique Arrangement for stabilizing a vessel, especially in roll
EP1110857A3 (en) * 1999-12-20 2001-08-08 TECHNICATOME Société Technique pour l'Energie Atomique Arrangement for stabilizing a vessel, especially in roll
US6349660B2 (en) 1999-12-20 2002-02-26 Societe Technique Pour L'energie Atomique Technicatome Device for stabilizing a ship, especially when rolling
FR2802891A1 (en) * 1999-12-23 2001-06-29 Bernard Canal Sailing boat list controlling system comprises ballast balls which can be moved round closed circuit to compensate for list
WO2001047769A1 (en) * 1999-12-23 2001-07-05 Bernard Canal Device for limiting list and trim of sailing boats
EP1304289A1 (en) 2001-10-18 2003-04-23 Société Technique pour l'Energie Atomique TECHNICATOME Arrangement for balancing ships of low tonnage
FR2831135A1 (en) 2001-10-18 2003-04-25 Technicatome Balancing device for low tonnage vessels
EP2952426A1 (en) * 2009-09-04 2015-12-09 Itrec B.V. Offshore wind turbine installation

Also Published As

Publication number Publication date
FR2687978B1 (en) 1998-05-07

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