FI110254B - Arrangement of the installation of the ship's propulsion system and its associated method and equipment - Google Patents

Description

110254

INSTALLATION PROCEDURE FOR THE SHIP PROPULSION DEVICE, AND RELATED METHOD AND TOOL

MONTERINGSARRANGEMANG FÖR FARTYGS PROPULSIONANORDNING SAMT FÖRFARANDE OCH MEDEL I ANSLUTNING TILL DETTA

The invention relates to a ship propulsion assembly installation arrangement according to the preamble of claim 1, wherein the propulsion assembly comprises a modular hull structure, i.e. an engine unit, exterior to the hull of the ship, comprising an engine and a propeller, adapted to the ship-like structure. The invention also relates to a method for mounting and removing a propulsion unit engine unit of a ship propulsion unit according to the preamble of claim 8, in particular to a boom projecting from the ship, and to a plug arrangement according to claim 10, particularly for transferring electricity and / or flowing medium under difficult operating conditions between the device developed for implementing the installation arrangement according to the invention and the installation method respectively.

·: *: Vessel propulsion arrangements where the propeller is mounted in a structure separate from the hull are well known in the maritime industry. In most cases, this is the structure. as such it can be turned so that the propeller current can be turned in the desired direction by turning the structure. The arrangement constructed in this way thus functions both as the ship's pushing arrangement and as the main control ··· of the vessel. A particularly preferred embodiment of such a propeller arrangement comprises a special housing structure, i.e. a so-called. a "pod" containing the propeller drive motor, which is then ·; · * mostly electric. One such arrangement! *. * · I 2 110254 mention of the propulsion system marketed by the applicant under the registered trademark "Azipod" (TM). Functionally, such a structure brings with it a number of considerable advantages, and therefore such propulsion arrangements are nowadays adapted to the most diverse types of vessels.

Such propulsion devices have so far been installed such that the engine, the propeller shaft connected thereto, and any other equipment important for operation are placed in an existing housing structure at the end of the shaft structure, which is then sealed watertight. However, such an on-site installation is in some cases impractical, and thus, the prior art of Finnish Patent Application No. FI-20000191, by the same applicant, generally discloses an arrangement comprising a modular motor unit which is itself connected to a separate shaft portion of the propulsion device.

The object of this patent application is to provide a particularly convenient arrangement for mounting one or two or more motor units, in particular modular structures, in a vessel structure, in particular ... but not exclusively protruding from the vessel and preferably still rotatable with respect to the vessel structure.

'' Like all technical devices, the propulsion arrangements of ships at regular intervals require maintenance that is most conveniently performed in dry conditions. Thus: there is a need to install and disassemble the engine unit on the ship so that the engine unit can be easily and safely serviced and. ···. back to the ship. There is also a need to test the devices.

It is thus another object of the present invention to:. demonstration of the arrangement to facilitate the engine unit,. : install and uninstall respectively.

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It is a further object of the invention to provide an arrangement which enables the motor unit to be tested, secured and removed accordingly without opening the motor unit.

Yet another object of the invention is to provide an arrangement that enables rapid replacement of spare parts such that the entire motor unit is replaceable as a complete module.

Yet another object of the invention is to provide an arrangement in which the need for devices requiring separate maintenance or special feed arrangements is minimized.

The above objects are achieved according to the invention as set out in the appended claims. Thus, the arrangement according to the invention is characterized in that the housing assembly of the motor unit has first fitting means opposite to the propeller for fitting the housing structure in the direction of its longitudinal axis to corresponding second fitting means arranged in the structure associated with said vessel. Correspondingly, the method according to the invention is characterized in that the motor unit is generally fitted by means of a longitudinal displacement of the motor unit to a fitting member in the structure connected to the vessel, or> · • Λ: eliminated by the plug means are substantially simultaneously formed between the ship-associated structure and the engine unit. a connection to supply electrical power to the motor or the like. to open those connections. The plug arrangement according to the invention is again known in that the arrangement comprises insulating

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: embedded flexible fitting and transition means for the material, whereby the insulating material also forms fittings:. flexors for transition devices.

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The invention will now be described in more detail with reference to some preferred embodiments and the accompanying drawings, in which

Figure 1 is a perspective perspective view generally showing an arrangement of an engine unit, wherein one engine unit is mounted on a boom projecting from a ship (not shown) in accordance with an embodiment of the invention,

Figure 2 is a side elevation showing the arrangement of Figure 1,

Fig. 3 is a top view corresponding to the arrangement according to Figs. 1 and 2,

Fig. 4 is a perspective view showing an arm assembly according to an embodiment of the invention, which is also intended for a single motor unit,

Fig. 5 is a straight rear view showing the arm structure of Fig. 5 with its fitting arrangements, ... Fig. 6 shows the arm structure of Fig. 5 from the side, i t »

Fig. 6a shows, in partial magnification, the fit of the plug arrangement to the shaft structure, * I *

Fig. 7 is a bottom view of the rod structure of Fig. 5,

Fig. 8 schematically illustrates a front view of a plug-in arrangement according to an embodiment of the invention,. Fig. 9 schematically shows a side view of the weapon of Fig. 8, I ·>. : Fig. 10 is a perspective view showing a separate lower part (inverted) of a shaft unit acting as an adapter, for one motor unit,

Fig. 11 is a perspective view, respectively, of the shaft portion associated with Fig. 10 (likewise inverted);

Fig. 12 is a perspective view showing a shaft arrangement for two motor units according to another embodiment of the invention,

Figure 13 is a front (or rear respectively) view showing the shaft structure of Figure 12,

Fig. 14 is a side view, respectively, of the shaft structure of Figs. 12 and 13

Fig. 15 is a side view showing a single plug arrangement according to an embodiment of the invention, and

Fig. 16 is a sectional view showing the plug of Fig. 15.

According to Fig. 1, the arrangement according to the invention generally comprises a motor unit 1 consisting of a housing structure with an electric motor known per se, which in Fig. 2 is '·' generally outlined by reference 25. The motor is associated with a longitudinal shaft 26 having 24. A propeller known per se is provided at one end 2 of the propeller shaft 26 and is shown in Figure 2 with reference to 5. According to a preferred embodiment of the invention. the motor unit 1 is mounted on a shaft structure 3 which, in a manner known per se, is particularly advantageously fitted with a '' '' pivotable e.g. by means of a fitting ring 4 shown in the figure to the bottom of the hull (not shown). Fig. 2 further shows that the motor unit 1 is opposed to the propeller 5: at its end is fixed to a separately formed fitting member, i.e. lower part 6, of the arm structure 3, which has fastening bolts mounted externally to the motor unit end wall 7 (not shown) 8. The arrangement is such that the end wall 7 of the closed motor unit 1 at the same time forms a wall of said lower part 6 of the arm structure 3 so that water flowing into the inner space 21 of the lower part 6 cools the motor unit 1 and especially the pressure bearing

Figure 2 further shows that the lower part 6 of the arm structure suitably has at least one generally open service opening 9 which preferably simultaneously serves as a cooling water outlet so that water outside the device can flow into and out of the lower part 6. Preferably, said lower part 6 is further provided with one or more separate cooling water openings 10 in the housing of the motor unit 1, known per se, according to an embodiment of the invention, located in the end wall 7 of the motor unit 1, preferably protruding inside the lower part 6 and suitably provided with cooling fins bolt mounting hole. Figure 3 further shows that the entire assembly, and in particular the arm portion 3, is preferably shaped to provide a cross sectional area that disrupts the flow of water as small as possible.

Fig. 4 is a perspective view, Fig. 5 is a side view of the motor unit to be mounted, Figs. 6, 6a and Fig. 7 is a bottom view showing an arm assembly 3 according to a preferred embodiment of the invention. for the unit mounting bolts, the holes 11 are located on the shaft. ···. on the periphery 20 of the lower part 6 of the structure 3, suitably evenly spaced.

"* The location of these mounting holes 11 is, according to a particularly advantageous embodiment of the invention, standardized so that each motor of a suitable size relative to the vessel; . ·. unit 1 comprises an identical set of mounting holes. Answering • _; the other mounting and mounting arrangements of the motor unit 1 110 are also fitted at standard positions, i.e. preferably at the other end 7 of the motor unit 1. Thus, any motor unit 1 can be attached in substantially identical manner to the single-ended arm structure 3 of FIG. 12 to 14, as will be explained in more detail below. Thanks to the arrangement according to the invention, the standard size motor unit 1 can be mounted without opening the motor unit 1, since all the operations required for its mounting, such as mounting and tightening the fastening bolts, can be performed from the direction 6 of the lower part.

Figures 5 and 6a further show a detail of a particularly preferred embodiment of the invention, i.e. a plug arrangement 12 generally shown in Figures 8 and 9, with a particularly preferred embodiment shown below, all inputs and circuits required for operation of the motor unit 1 such as the couplings 14 required for operation control and the piping 15 for lubrication, cooling or the like can be coupled within a single coupling step, preferably simultaneously in connection with the motor unit fitting. Thus, the connection of the motor unit can be carried out in a single working step, which enables, for example, a very rapid replacement of the "motor unit 1" in place of a potentially damaged unit. Of course, the same advantage is achieved when you first install the standard; A motor unit 1 of very large size can be installed on the ship very quickly.

, ··. Another advantage of the arrangement according to the invention is the very easy testing of the engine unit 1 manufactured, disassembled or serviced before installation. Because all the wiring needed to operate and control the motor I · · unit 1: -. are simultaneously actuated by one operation in a manner from which I »I> ·,; plug-and-play in English, I · · »· 110254 8-way switching, for example for engine testing, can be done virtually anywhere. Since no action will be taken on the closed motor unit afterwards, there will always be full assurance that the motor being tested is in good working order.

Figures 8 and 9 show an example of a common standard plug arrangement according to an embodiment of the invention. It will be appreciated in the figures that the passage and coupling unit 12 is suitably provided as such with its own gasket 16, and preferably such that a separate gasket 16a for each plug is further surrounded by a separate gasket. In such an arrangement, the plugs 18, shown in more detail in Figs. 15 and 16, still containing moisture insulation 17 as such, can be adapted such that the respective plugs (not shown) protruding into them by the motor unit 1 provide a reliable connection for all supply, operation and monitoring. functions.

Figures 10 and 11 show that the arrangement according to the invention is advantageously still feasible in that the lower part 6 of the arm assembly 3 is formed as a separate fitting body comprising said standard motor unit '··' connecting members 8, 11, 12. In this case, the lower part 6 is preferably fitted to the actual swivel arm part 3, which is preferably pivotable to the vessel, so that the arm 3 and the lower part 6:: formally locked together, e.g.

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by means of the pieces 19 and / or by the mutual shaping of the parts.

Γ. Figures 12 to 14 show in more detail an alternative embodiment of the arm assembly 3 according to the invention.

In this case, the lower part 6a of the arm assembly is double-sided, such that each of the motor units 1 can be secured to the opposite, spaced-apart mounting surfaces 20, 20a from the opposite end of the propeller 5. These mounting surfaces 20, 20a are also suitably provided with respect to the positioning of the mounting bolts holes 11 and e.g. the plug arrangement 12, so that the standard motor unit 1 can be mounted at each end of the assembly. In this case, the bolt mounting recesses 8, which are suitably fitted to the substantially cylindrical lower part 6a of the arm assembly 3, are either embedded in the outer surface of the lower part 6a or by bolt mounting and tightening to the end wall 7 of the motor unit 1.

According to a preferred embodiment of the invention, the cooling arrangement of the bearing 24 opposite to the propeller 5 of the motor unit 1 is implemented such that the known bearing 24 is cooled by water flushing through the lower end 6, 6a of the arm assembly 3. To this end, for example, water flow openings 9, 10 are provided at the lower end 6, 6a, the operation of which can be further enhanced by suitable pump or similar means (not shown). By providing cooling of the bearing 24 directly to the surrounding water, it is often unnecessary to remove the technically most troublesome oil circulation arrangement of the bearings 24.

In order to carry out the general arrangement according to the invention, a special coupling arrangement 18 has been further developed, which is illustrated in more detail in Figures 15 and 16. This arrangement comprises; at least somewhat flexible per se, and preferably also slightly elastic in itself, facing each other; operative coupling tabs 22 between which the interlocking system interacts, i.e., in the end wall 7 of the motor unit 1. ··. 12 complementary counterparts (not shown) coupling, ·· 1. the tab is pressed, in particular, to form an electrical connection. In contrast to the prior art, the * plug arrangement according to the invention is implemented in such a way that the insulating material piece 17 used as a damping material for the coupling, preferably provided with a sealing lip 23, acts simultaneously; in 22 languages for the field languages. Thus, the insulating body 17 according to the coupling arrangement according to the invention simultaneously seals and secures the contact between the coupling tongues by pressing the coupling tongues 22 against both sides of the coupling tongue of the coupling.

The invention has been described above mainly in relation to a shaft structure projecting from the vessel and preferably also pivotable about e.g. However, it will be apparent to one skilled in the art that the invention is applicable in many other ways within the scope of the appended claims. Thus, it is clear, for example, that a similar arrangement is also applicable in the case where the engine unit is mounted on a structure permanently on board, for example, replacing a conventional propeller assembly to be removed directly on the hull or a separate fitting corresponding to lower part 6.

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Claims (11)

A mounting arrangement for a ship propulsion unit, the propulsion arrangement comprising a modular housing construction or engine unit (1) located outside the ship's hull comprising an engine (25) and a propeller (5), the engine unit (1) being adapted to fit a The structure (3) of the vessel, characterized in that, at the housing construction (1), at the end (7) opposite to the propeller (5), first fitting means for adapting the housing structure (1) in its axial longitudinal direction is provided. corresponding to other fittings (6, 6a, 8, 11, 12, 20, 20a) arranged in said construction (3) connecting to the vessel. 2. Arrangement according to claim 1, characterized in that the housing structure (1) is arranged as a substantially closed motor unit construction of whose fitting means (6, 6a, 11, 20, 20a) at least some (12) simultaneously comprise through-passage channels (13, 14). , 15) for wiring for. *: supply, control, and / or monitoring functions for the motor (25) in the housing and to the same means. 3. Arrangement according to claim 1 or 2, may ···. t e c k n a t e, that the fitting (12) of the housing structure (1) is arranged at a gable wall (7) which is located on the ···: opposite side in relation to the propeller (5). . 4. Arrangement according to any one of claims 1 ... 3, characterized in that the fitting means (6, 6a, 8, 11, 12, 20, 20a) arranged in the structure (3) which joins the vessel comprise substantially plug-like means (13, 14, 15), 18) which, to form said passage channels (13, 14, 15), cooperate with the corresponding means arranged at the housing structure (1). 110254 5. Arrangement according to claim 4, characterized in that the plug-in means (18) comprise flexible fitting and transition means (22) embedded in an insulating material (17), the insulating material (17) simultaneously forming resilient means. for the adaptation and transition means (22) and advantageously so that the insulating material (17) simultaneously for electricity or a flowing medium moving through the plug arrangement (18) acts as a main insulation against the surrounding space (21). 6. Arrangement according to any of claims 1 ... 5, characterized in that the fitting means (8, 11, 12, 20, 20a) arranged in the structure (3) which joins the vessel comprise a fitting section (6, 6a) which has, on one side or opposite ρά each side, mounting adjustments ... (8, 11, 20, 20a) for the housing structure's fasteners 1., preferably flange means (20, 20a) for mounting bolts ··· * or similar fasteners which are positioned away from the fitting hub (6, 6a) in the housing structure (1). Arrangement according to any of claims 1 to 6, characterized in that a bearing (24) for a shaft (26) for the motor (25) present in the housing structure (1) is provided. : so that the cooling of the bearing (24) can be at least partially accomplished by means of water located outside the propulsion device, advantageously so that the bearing is arranged in close proximity to said gable wall (7), whereby: ... · flow openings (10) for water in a corresponding manner are. . ·. provided in the fitting sections (6, 6a) for the structure, which is provided on the vessel, in particular for an arm structure extending outwardly from the vessel, for guiding cooling water into the interior space (21) and / or the bearing ( 24). 8. A method of mounting a propulsion device's motor unit (1) to a structure connected to a ship; In particular, in an arm structure (3) extending outwardly from the ship, or removing the unit therefrom, characterized in that, generally by means of a longitudinal displacement in the direction of the motor shaft (26), the motor unit (1) is adapted to a special fitting piece (6, 6a) which is present in the structure adjoining the vessel or which can be separately connected thereto, respectively, and removes the motor unit therefrom, thus bringing cooperative plugs (18) to the fitting piece (6, 6a) and the motor unit (1) respectively. one end wall (7) to form substantially simultaneously a connection (13) between the structure (3) connecting to the vessel and the motor unit (1) to supply electrical energy to the engine or to open the said connections accordingly. 9. A method according to claim 8, characterized in that the connections (14, · · 15.) required for opening and supplying medium are required for controlling and feeding medium for the other functions of the motor unit or for the like in parallel with '' to form the supply (13) for electrical energy, advantageously by using parallel substantially the corresponding IT: plugs (18). 10. Plug arrangement (18) in particular to transmit electricity and / or a current between two devices which can be connected to each other or detached from each other, under severe operating conditions: characterized in that the arrangement comprises flexible connection means 1, and transition means (22) embedded in an insulating material, material (17), the insulating material (17) simultaneously? »· Constitute the adaptive and transitional means of resilience. Arrangement according to claim 10, characterized in that the insulating material (17) simultaneously acts against an ambient space (21) as insulation for the electricity or flowing fluid moving via the plug arrangement (18).