ES2204550T3 - ELECTRIC TIMON HELICE WITH LOW CONSTRUCTION HEIGHT. - Google Patents

Abstract

The invention relates to an electric rudder propeller for a high-speed marine ship, comprising a multi-phase electric motor which is mounted in a gondola-shaped housing beneath the stern of the ship, using a rotatable, preferably two-part shaft. Said motor can be supplied with electric drive energy by means of a slip ring assembly and can be rotated using drive motors. The rudder propeller is mounted in close proximity to the outer hull (6) in the stern of the ship, in particular, above the water line, using a flat ring bearing (7). The slip ring assembly (8) is located in the upper section (3) of the shaft (2, 3) at the level of the ring-shaped bearing (7) and the drive motors for the rotational movement (9) are low in design and are located at least partially in the interior of the ring bearing (7).

Description

Electric helm propeller with height of low construction.

The invention relates to a ship of high maritime navigation speed with an electric helix propeller, which features a multi-phase electric motor, which is fixed in a gondola-shaped housing on a rotating shaft, with preference of two parts, on the stern of the ship and that can be Powered by electric drive energy through a arrangement of slip rings and that is rotating through drive motors

From document CA 1.311.657 A you can deduce a corresponding electric rudder propeller, whose tree It is configured as a tube. The body of the slip ring is It is located above the tree inside the ship.

It is also known by the Prospectus of the Firms Siemens and Schottel, entitled "The SSP Propeller", No. 159U559 04982, April 1998, a rotating helix propeller, in which the collector rings for the transmission of energy from electric drive as well as drive motors hydraulic for the rotary movement and its hydraulic pumps they are arranged in a drive machine room (Propeller 500 m) above the helix. Driving the wires to the slip rings are made from above.

The purpose of the invention is to equip the known drive, especially on transhipment ships horizontal, so that more space results in the stern of the vessel. In the case of horizontal transhipment vessels, you must enable, for example, in terms of construction, a continuous interior vehicle cover, without having to raise the cover hatch for the vehicle cover and the vehicle cover itself. In this case they must be given, as before, sufficient repair possibilities and of maintenance. The outward flow relations of the stern they must be able to be configured in this case in an optimal way as soon as to resistance, taking into account the relationships of the circulation, which result through the use of propellers of rudder.

The task is solved because the propeller of rudder is mounted on a flat structure annular bearing in the proximity of the outer coating, especially above of the water line, in the stern of the ship, being housed the arrangement of collector rings at the top of the tree a the bearing height annularly, and being configured the drive motors for rotating structure movement low and being arranged at least partially inside the annular bearing to achieve a low mounting arrangement for the helix helm. In this way the disposition of desired low mount according to the invention for the helix electric In particular, it first seems possible to ride on the top of the tree with its narrow place "bearing rotating "collector rings and drive motors for rotating movement, etc., in such a way that it is possible Still one step down. In spite of the whole invention you can perform with the maximum possible optimization of all parts and largely dispensing with straps that extend horizontally. In this case it is possible to mount the motors for the rotary movement in the region by under the arrangement of slip rings.

The flat structure annular bearing can be have both above the water line and also a alternative way below the water line, in the case of an arrangement below the water line, is maintained with advantage under overpressure. The known arrangement from document CA 1,311,657 with an entry of the tree into the vessel by below the water line and with an internal extension of the tree up above the water line is clearly more unfavorable. Here the sea water can erupt inside the bearing.

When the tree is mounted above the water line in a large diameter annular bearing, where the bearing diameter is approximately equal to or greater than the electric motor winding length, is achieved, about all when, as provided advantageously, the bearing ring also has a large inside diameter, a part top so spacious of the helix tree that the helm arrangement of slip rings optimized for size and The rotating motors can be fully housed there. Thus you can do without a room advantageously separate machines above the helix of the rudder and e can Save construction height. The annular bearing can be dispose directly under the vehicle cover.

In this case, it is advantageous for the tree to present a tree top that is arranged above the water line of the ship and greatly reduced at the stern of the vessel. In this way it is achieved in a very advantageous way that all the essential parts of the rotary drive are arranged protected out of the water that circulates around the hull. When in in this case the height of the lower part of the tree corresponds approximately to the diameter of the gondola, a drive, in general, of very low structure, since in virtue of the high speed double propeller intended for the utilization can be selected propeller diameters relatively small In this case, in the configuration according to the invention is advantageously possible a ship drive They navigate planes.

In another configuration of the invention is provided that the drive motors for movement swivel are configured as hydraulic piston motors radial flat structure. In this way, you get a way to especially favorable realization of rotating motors with Small dimensions with large torque.

In this case it is advantageously provided that the tree is connected, if necessary, through a part of intermediate cover, immediately below the cover of lower load in the stern region, for example, the deck for vehicles in the case of horizontal transhipment vessels, with The body of the ship. Through an intermediate cover part small of this type, which can also be configured as annular disk, an advantageous mounting possibility is achieved both especially stable and also of low structure for electric helm propeller. The intermediate cover part can be arrange both on mounting elements, for example drawers, as also directly, that is, through the placement on the double bottom in the region of the roof.

Especially for transhipment ships horizontal is advantageous in this case that the tree is mounted under a rudder helix closure lid, the lid being of closing component of the cover for vehicles, in the case of the configuration of the ship as a horizontal transhipment vessel. From this way you get an especially good use of the construction height that is available on the deck of the vessel, which makes it possible to directly approximate the inner deck for vehicles on the cover hatch. Cover for vehicles can be used in this case over the entire length of the vessel, so that a good use is not achieved reached so far for the main vehicle cover. In this case also guarantees full use of the surface of the ventilation cover, being able to have an advantageous way the winch drives, etc. below of the ventilation cover to increase the surface Useful.

In this case, in a configuration of the invention is provided that the closure cover has holes of access to individual equipment of the helix, for example to the arrangement of slip rings, to the engines of drive for rotating movement as well as others essential functional elements. In this way, for jobs maintenance and small repairs should not be disassembled from advantageously the closing cover on the vehicle cover, but the corresponding equipment can be accessed through of access holes similar to registration holes.

In this case it is advantageously provided that the top of the helix is closed tightly leakproof with respect to the lower deck in the region of the roof. This way they can be fulfilled from advantageously the safety requirements of ships of horizontal transshipment or Ropax ships, without having to modify the advantageous embodiment, which requires a construction height minimum, of the electric helm propeller.

In addition, it is planned for the helix electrical, that the collector rings for feeding power and for motor control are set at least partially as concentric collecting rings. In this way a reduced construction form is achieved for the components of energy transmission and signal transmission. For engines electrical of more than three phases, for example for motors 6-phase or 12-phase electric, but also for motors electrical divided, it is specially planned in this case that the power supply manifold rings are configured only three-phase, and that a derivation is carried out towards a motor winding system of more than 3 phases behind the arrangement of slip rings through power semiconductors, which form a current converter decentralized and they are arranged in the tree. In this way can be carried out with a collector ring body relatively simple, reduced structure, feeding energy also for multi-phase electric motors or for split electric motors. This simplifies the structure and considerably reduces the construction height of the arrangement of slip rings. In this way, the systems of multi-phase winding can be fed from a advantageous way with electric power in a controlled way. Through of heat dissipation elements, which are in communication with the envelope of the tree well chilled through the sea water that circulates around it, can be well refrigerated Very advantageous way the power semiconductors.

The cables for power transmission are advantageously driven from the side to the arrangement of slip rings of the ship. This requires, in effect, a separate connection element in the arrangement of collector rings However, the extra costs that are derived from They are more than compensated through the gain of space. The connection element can be advantageously extended over the vehicle cover of a horizontal transhipment vessel between Vehicle tracks Therefore, it does not affect so negative about the height of the helix's construction rudder.

Through the arrangement of the drives for rotary and collector ring body movement, etc. at the top of the tree, they don't have to approach auxiliary groups in the tree, for example bilge pumps and oil pumps, etc. If necessary, also Power semiconductors are in this region, since the lower part of the tree is set narrow with effect favorable for circulation (also acting as a rudder). I dont know It can exclude the appearance of heat nests. How help is available at the top of the tree at least one fan, which enables air circulation in the upper part of the tree, if necessary also an air exchange.

In addition, it is advantageously provided that the transition from the top to the bottom of the tree is found in the plane of the outer lining of the ship, with preference totally above the water line. This way, the tab between the top and bottom of the ship can be taken out of the circulation that flows around the hull and a replacement of the shaft with the engine is also possible electrical for repairs, without the ship having to be docked For a "dry" substitution it is surely enough that the ship is ballasted on the stern.

In another configuration of the invention, it is provided that the helm propeller motor shaft has a inclination, which is approximately adapted to the development of the stern of the ship. This way an output current is achieved especially advantageous in the region of the stern of the ship, which take advantage of accelerated circulation in a very advantageous way through the propeller for the reduction of the stern resistance of the ship Then the helix can be arranged according to the invention further back without inconvenience related to the circulation. Then the gain of space through its Advantageous configuration is maximum. Therefore, in general, not only is achieved through the use of the helix of the rudder according to the invention, with simple construction height, a enhanced use of space that is available in the stern region, but no harm occurs in the stern region related to circulation with respect to conventional rudder propellers that are arranged deeper under the ship.

The invention will be explained in detail below.  with the help of drawings, from which, as well as from from the dependent claims, others can be deduced essential details of the invention. In particular:

Figure 1 shows a helix helm according to the invention with its structure that requires little space from the side.

Figure 2 shows a double arrangement Rudder propeller in the stern region of the ship from behind.

Figure 3 shows a double arrangement Rudder propeller according to figure 2 from above.

Figure 4 shows the top of the tree with lateral conduction of the cables from the lateral.

Figure 5 shows the top of the tree according to figure 4 from above, and

Figure 6 shows a compressed section a through an annular bearing arrangement with height of especially reduced construction.

Figure 1 shows a use for Horizontal or Ropax transhipment with very high construction height reduced between the outer lining 6 and the cover for vehicles 5. At this reduced construction height are Built-in all components of the electric helix propeller, with the exception of shaft 2 and engine part 1.

To get the lace described below, for example, the following measures are taken.

Between the outer lining 6 and the cover for vehicles 5 an intermediate cover part 10 is inserted small, given the case configured as an annular disk, on which the helix is seated. Above the part of intermediate cover 10 the stationary parts of the ring bearing 7. A cover is mounted on the vehicle cover 5 4 hermetically sealed in a fire-resistant manner, to through which the rudder propeller unit that is accessed is accessed find below. In this cover 4 - large- different are inserted Small caps, not shown, that facilitate access to the parts Essential functional helix helix. The disposition of manifold rings 8 and rotating motors 9 are located in as much as possible inside the annular bearing 7 and in the top 3 of the tree. The annular bearing 7 with the part of intermediate cover 10, configured here especially small, is advantageously arranged on a drawer structure 11 in The little ship.

The large lid 4 can be supported directly or indirectly on the intermediate cover part 10, so that the space under cover 4 reaches a height of very reduced construction and, therefore, the overall height of assembly is optimally low. Power supply cables bending resistant are conducted in an advantageous manner from the side to the arrangement of slip rings, of so that the cover 4 can be configured smooth and can be mounted directly above the arrangement of slip rings.

The helix of the rudder itself is inclined advantageously so that its axis of drive extends ascending backwards. This improves outflow also in the case of a stern short. In this case, the separation tab between the part upper helm of helm 3 and the tree can be approximately in the plane of the outer covering, so that with a relatively more backward arrangement of the propeller of the rudder and its short construction type parts of eyelash in the circulation around the helmet.

The cover 4 advantageously receives a fire-resistant seal, so that in the case of a fire in this part of the drive installation, do not get endangered the covers for vehicles above. TO conversely, the drive system is not damaged in its fire function on vehicle deck and ship Stay ready to navigate.

The reduced height between the cover part intermediate and the lid is also achieved through the use of radial piston hydraulic motors of flat structure for azimuthal drive Through the arrangement of rings electric manifolds 8, especially multi-part, which located at the top 3 of the tree, the voltage is transmitted Main motor average, low voltage for systems auxiliary and signals for motor control / regulation. The Rudder propeller itself is spinning endlessly around 360º. The collector rings of the ring arrangement manifolds 8 are arranged especially concentric with each other, the antennas of being advantageously outside Signal transmission not shown in detail.

In figure 2 the two are designated with 18 and 19 rudder propeller units. In this embodiment of the construction, the intermediate cover part is of a advantageous way directly on the double bottom 17. The bearing annular is fixed, for example, by means of claws and motors swivels are arranged, the same as the body of rings collectors, according to the invention in intermediate space 16 below the cover for vehicles 15. This way you get a reduced construction height for mounting propellers Rudder arranged further back.

As can be deduced from Figure 3, the auxiliary groups 12 for azimuthal actuation, by example hydraulic pumps and their engines are also in the intermediate space below the deck to vehicles. Through short hydraulic conduits, they are fed the two helix propellers 13 and 14 with rotating energy. Therefore, it can also be advantageous according to the invention dispense with a separate room and machines above the Rudder propellers 13 and 14.

In Figure 4, 21 designates a connection tube of laterally driven cables, 23 designates the top cover of the arrangement of slip rings and 22 designates the parts upper drives for rotary movement ,. The Figure 4 shows an especially good example of the height of Small assembly achieved.

In figure 5, 24 designates the connection part of the cable tube 29, 27 designates an entrance to the shaft and 26 designates a reserve cross section. With 28 a fan is designated and with 30 a drive for the rotating movement. Since All the components shown still have connection lines, terminals, fasteners, tabs, etc. it shows that it was an optimization needed here, which required reflections deep.

In Figure 6, which shows an annular bearing of low structure according to the invention in section representation partial, with 31 the part of the ship's structure is designated, which It forms the base of the annular bearing. This can be, for example, a intermediate cover part, a double bottom part or a part void on the outer lining of the ship. With 32 is designated, for example in a horizontal transhipment vessel, the deck of maneuver or a cover on the maneuver cover. With 33 is designated a motor for the rotary drive, which is fixed in a support 37. With 34 a drive pinion is designated for the rotating ring 35 of the annular bearing. With 36 is designated, finally, the helix tree of the helm, which is connected directly with the rotating part of the annular bearing. The connection elements between individual parts, such as tabs with screws, welding seams, etc. do not show, put which in figure 6 is a representation of the principle of an especially low structure bearing arrangement. Here the drive motors 33 for the rotary movement are arranged even fully inside the tree.

In the example shown in Figures 1 and 2, the rudder propellers 13, 14, 18 and 19 are freely attacked by the stream. This is especially important for operation. free of vibrations, but upstream of the helix propellers guide bodies of the circulation may also be arranged, which are specially configured as a hook with the tip of the hooks at the height of the axes of the rudder propellers. Then a directional stability is achieved especially good vessel, a possible improvement in propulsion performance and a possible improvement in the behavior of the output current of The stern of the ship. However, in this case the vibration tendency of the drive system with relation to the advantages achieved, so that these guiding bodies of the circulation are contemplated more for ferries horizontal and less for Ropax ferries or for cruise ships. The optimization depends in each case on the type of vessel, on the speed and field of application. With an optimization corresponding, all types of ships can be equipped with a advantageous way with circulation guide bodies, approximately drop-shaped in the cross section, arranged upstream of the helix propellers. The bodies of circulation guide raise the surface in this way moistened, but its advantages for the vessel's behavior, the output current resistance and propulsion performance they overcompensate this inconvenience. Especially advantageous is its combination (not shown) with the helix propellers according to the invention, low mounting, if necessary short, since here It can keep the additional moistened surface small.

Claims (23)

1. High-speed maritime navigation vessel with an electric rudder propeller, featuring a multi-phase electric motor, which is fixed in a gondola-shaped housing on a rotating shaft, preferably with two parts, on the stern of the vessel and that can be fed with electric drive energy through an arrangement of slip rings and which is rotatable through drive motors, characterized in that the helix is mounted on an annular bearing (7) of flat structure in the proximity of the outer covering (6), especially above the water line, on the stern of the ship, the arrangement of slip rings (8) being housed in the upper part (3) of the tree (2, 3) at the height of the bearing (7) annularly, and the drive motors being configured for the rotary movement (9) of low structure and being arranged at least partially inside the bearing and cancel (4) to achieve a low mounting arrangement for the helix. 2. High-speed maritime navigation vessel according to claim 1, characterized in that the electric rudder propeller is mounted below the water line at the stern of the ship. 3. High speed maritime navigation vessel according to claim 1 or 2, characterized in that the annular bearing (7) is connected to the parts of the ship's stern structure through an intermediate deck part (10), given the case in annular configuration. 4. High speed maritime navigation vessel according to claim 3, characterized in that the intermediate deck part (10) is connected to the ship's stern structure parts through a drawer construction (11). 5. High-speed maritime navigation vessel according to claim 3, characterized in that the intermediate deck part (10), specially configured in an annular shape, is connected to the double bottom (20) of the vessel. 6. High-speed maritime navigation vessel according to claim 3, 4 or 5 characterized in that the intermediate deck part (10) is arranged immediately below the lower cargo deck in the stern region, therefore on ships horizontal transshipment, immediately below the vehicle cover (5). 7. High-speed maritime navigation vessel according to claim 1, 2, 3, 4, 5 or 6, characterized in that the shaft (2, 3) is mounted on the stern of the ship under a closing cover (4) of the helix helm. 8. A high-speed maritime navigation vessel according to claim 7, characterized in that the closing cover (4) is a component of the vehicle cover (5) in the case of a configuration of the vessel with a horizontal transhipment vessel. 9. High-speed maritime navigation vessel according to claim 7 or 8, characterized in that the closing cover (4) has holes for access to individual equipment, such as the arrangement of slip rings (8), the drive motors (9) for the rotating movement, as well as other essential functional elements of the helix. 10. High-speed sea navigation vessel according to one or more of the preceding claims, characterized in that the drive motors (9) for the rotary movement are designed as radial piston hydraulic motors of flat structure. 11. High-speed sea navigation vessel according to one or more of the preceding claims, characterized in that the annular bearing (7) has a toothed crown for the rotational movement in the rotating ring (35) of the annular bearing (7) and the ring fixed is preferably connected directly to a part of the structure (31) of the vessel. 12. High speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the motors (33) for the rotating movement are arranged under the annular bearing (7) in the upper part (36) of the shaft, being retained on supports (37) and fitting on pinions (34) in the rotating ring (35) of the annular bearing (7). 13. High-speed sea navigation vessel according to one or more of the preceding claims, characterized in that hydraulic pumps are arranged in the shaft (36) for driving the motors (33), especially in the form of power packs. 14. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the power supply to the arrangement of collector rings is carried out through cables leading from the side to the arrangement of collector rings, for Get a flat type of construction. 15. High-speed sea navigation vessel according to one or more of the preceding claims, characterized in that the arrangement of slip rings has a connection element (21) for a connection of cables coming from the side. 16. High speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the electric helm propeller has at least one fan in the upper part (3) of the shaft, especially to avoid heat nests in the shaft ( 2, 3) in the region of auxiliary drives, etc. 17. High speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the upper diameter of the upper part (3) of the shaft is equal to or greater than the length of the winding of the electric motor (1). 18. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the upper part (3) of the shaft (2, 3) of the rudder propeller is hermetically sealed against the deck. that is above. 19. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that in the arrangement of slip rings (8), the slip rings for power supply and for motor control are at least partially configured as concentric collecting rings. 20. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the collector rings for the power supply of the electric motor are configured biphasic or three-phase, and because a shunt for a winding system is carried out of the motor that has more than two or three phases behind the collector ring devices, especially through power semiconductors in the form of a decentralized current converter, which is arranged in the shaft. 21. High speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the separation point between the upper part (3) and the lower part (2) of the shaft is approximately in the plane of the outer shell ( 6) of the vessel and the rudder propeller is preferably arranged so far behind the stern that the separation plane is completely above the water line. 22. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the point of separation between the upper part (3) and the lower part (2) of the tree is arranged above the outer lining of the ship in a tree pit in the stern of the ship. 23. High-speed maritime navigation vessel according to one or more of the preceding claims, characterized in that the length of the vessel (2, 3) is sized and the helm of the helm is arranged upwardly towards the stern of such that the flow produced by it follows approximately the development of the stern of the ship.