WO2010037741A2

WO2010037741A2 - Propeller drive assembly for steering and driving a ship

Info

Publication number: WO2010037741A2
Application number: PCT/EP2009/062610
Authority: WO
Inventors: Michele Zottele; Andrea Pellegrinetti
Original assignee: Zf Friedrichshafen Ag
Priority date: 2008-10-02
Filing date: 2009-09-29
Publication date: 2010-04-08
Also published as: DE102008042598A1; WO2010037741A3

Abstract

The invention relates to a propeller drive assembly for steering and driving a ship (1), comprising at least one drive motor (2) and at least one transmission housing (5) in a hull, in addition to at least one steering housing (8) with at least one propeller (9) outside the hull. The steering housing (8) is pivotally mounted on the transmission housing (5) by means of a steering shaft (12) for steering the ship (1) and at least one cooling unit for cooling at least one lubricant is integrated into the transmission housing (5).

Description

Propeller drive arrangement for controlling and driving a ship

The present invention relates to a Propeüerantriebsanordnuπg for controlling and driving a ship according to the closer defined in the preamble of claim 1. Art.

So-called pod drives for ships are known. Such drives are propeller drive assemblies for controlling and propelling a ship having, for example, an aerodynamic nacelle as a control housing which is rotatable for steering the vessel about the vertical axis. The propulsion drive assembly includes a transmission coupled to a motor via a drive shaft is. Both the transmission and the engine are arranged in the hull. The control housing with a propeller, however, in the water, ie outside the hull, arranged. For cooling the common Schmiermittelkreϊslaufes of the gear housing and the control housing in known Propeiteran- triebsaπordπungen an external heat exchanger is used, which is arranged in the seawater circuit of the engine, which is also the engine coolant! cools. Thus, additional connection lines from the transmission housing and the control housing are required to deliver the lubricant to the external heat exchanger. As a result, the weight and the cost of production are increased in the known Prapellerantriebsanordnungen.

Further, an outboard propulsion arrangement for a ship from the document US 7 118 434 B2 is known. The Außenbordantriebsanordπung comprises a housing located in the water, in which two propeller shafts are held to drive two propellers. Each propeller shaft is driven by an angle drive in the underwater housing. The underwater housing is held rigidly at an opening of the hull to be connected to an iuse. There: arranged and is driven by a drive motor, which is also arranged in the hull. To cool the common Ölkreisiaufes the gear housing and the underwater housing a common Öire- servoir is provided outside the two housing. The oil reservoir adjacent cooling channels, which are traversed by a coolant of the engine. Thus, even in the known Außeπbordantriebsanordπung an external

Accordingly, the present invention, the object of the invention to propose a propeller drive arrangement of the type described above, which is constructed as compact as possible and with few components and

This object is achieved by the features of claim 1. Further advantageous embodiments will become apparent

Accordingly, a propeller drive arrangement for controlling and driving a ship with at least one drive motor and at least one transmission housing in a hull and at least one Steuer¬

beat, wherein the control housing via a control shaft is pivotally arranged, for example, about a vertical axis on the transmission housing. According to the invention, at least one cooling device or the like for cooling at least one lubricant is integrated into the transmission housing.

Thus, the lubricant of at least the transmission is cooled directly in the associated housing, so that no structurally complex connections to an additional, external heat exchanger are required. As a result, the propeller drive arrangement proposed according to the invention can be constructed particularly compactly and with few components, so that Overall, a low-cost and weight reduced propeller drive arrangement is realized.

be provided that the cooling device comprises a cooling circuit with at least one Kühlkaπal or the like, wherein the cooling channel is integrated into the housing wall of the transmission. The cooling channel can be designed arbitrarily with respect to its shape. For example, cooling fins or the like, the cooling power increasing elements may be provided. For example, seawater or another medium can be used as cow serum. When seawater is used as the cooling medium, the cooling channel is connected to a seawater inlet and to a seawater outlet to supply the cooling circuit with seawater.

The dimensions and the shape of the cooling channel used can be adapted to the particular shape of the transmission housing. In order to achieve optimum cooling of the housing, for example, a cooling channel can be used, which forms a cross-sectionally U-shaped cooling jacket. But there are also other Querschnittsformeπ conceivable.

In order to achieve optimum cooling of the lubricant in the housing of the transmission, the cooling passage can substantially surround the areas of the transmission housing through which the lubricant flows. In this way the largest possible cooling surface is realized.

In the proposed PropeHerantriebsanordnung may preferably include the transmission housing a first housing portion with a bevel gear for transmitting torque and a second housing portion with a control gear for transmitting the control movement to a control shaft. The two transmission ranges are preferably a common associated Schmienruttelkreislauf cooled by the Kühleinrichtuπg

be provided according to a next development of the invention, that the substantially in the housing wall of the second housing portion s control gear is arranged approximately radially outside to the input shaft. It is also conceivable, in particular more cooling channels in the first housing portion but also in the second housing portion

, Due to the U-shape in the cross section of the cooling channel, an optimal cooling effect can be realized in both transmissions

Depending on the embodiment of the Propellerantriebsanordπung can with the

be ekuhüt. When using common, the lubricant in the control housing is simply cooled along. If separate lubricant circuits are provided for the transmission housing and the housing, for example, a connection line between the two lubricant circuits could be provided.

of the control housing by the cooling device in the gearbox erfoigen.

In the context of the present invention, several proposed Propeilerantriebsanordnungen can be jointly arranged iι a ship for driving and controlling the same.

Hereinafter, the present invention will be further explained with reference to the drawings. Show it: Fig. 1 is a schematic view of a propeller drive assembly for controlling and propelling a ship;

FIG. 2 is a sectional view of a gear housing of the propeller driving system of the invention; FIG.

Fig. 3 in accordance with the invention Propelleraπtriebsanordπuπ

In Fig. 1 there is schematically illustrated a propelling drive arrangement for propelling and controlling a ship 1, the ship 1 being indicated only by a ship's hull wall. The Propelteraπtriebsanordnuπg comprises a drive motor 2 which is coupled via a drive line 3 with a Getriebeeingangsweile 4 in a transmission of a transmission case 5 to the engine torque via the Getriebeausgangswelie 6 to an output shaft 7 in a control housing 8 for driving at least one propeller 9

The Aπtriebsmotor 2 and the gear housing 5 are arranged in the hull, so outside the water. The control housing 8 with the propeller 9 is below the hull, so arranged in the water.

FIG. 2 shows a sectional view of the gearbox 5 of the propelter drive arrangement according to the invention. The transmission housing 5 comprises a first housing portion 10 with a bevel gear for torque transmission and a second housing portion 11 with a control gear for transmitting the control movement to a control shaft 12. The Getriebeeingangswefle 4 is connected to the not shown in Figure 2 drive line 3 of the drive motor 2. The transmitted torque from the drive shaft 3 is transmitted via a spur gear and gear stages of the bevel gear to the transmission output shaft 6. The gearbox output 6 is coupled via other gear stages in the control housing 8 with the drive shaft 7 for driving the propeller 9.

The control housing 8 is connected via an adapter plate 13 with the ais hollow shaft formed control shaft 12, so that the control housing 8 at

shaft 12 is rotated or verschweπkt around the vertical axis to perform a desired control movement of the ship 1.

For cooling the lubricant contained in the transmission housing 5, for example oil, a cooling device integrated in the transmission housing 5 is provided according to the invention. As a result, no external heat exchanger is required.

As can be seen in particular from Figures 2 and 3, the cooling device comprises a cooling circuit with at least one Kϋhlkanal 14 in a wall of the transmission housing 5. The cooling channel 14 is formed as a cross-sectionally substantially U-shaped cooling jacket. The cooling passage 14 is provided, for example, in the embodiment variant shown in the second housing region 11 of the transmission housing 5.

FIG. 3 shows the second housing region 11 of the transmission housing 5

perspective view it is clear that the cooling channel 14 extends radially outward from the control shaft 12 and the Getriebeausgangsweile 6. In order to supply the cooling channel, for example with seawater, a seawater inlet 15 and a seawater outlet 16 are provided in the transmission housing 5, which are connected to the Kϋhfkanaf 14. 1 2 3

6 Transmission output shaft

I ö first housing overview

I 1 second housing area 12 Steuerweile

14 Kühnkanaf or cooling jacket

Claims

Pat e n n o rsonics

(1) with at least one drive motor (2) and at least one gear housing (5) in one and at least one control housing (8) with at least one

Control shaft (12) for controlling the vessel (1) on the transmission housing (5) is arranged, characterized gekeπn characterized in that at least one Kühfeinrichtung for cooling a lubricant in the transmission housing (5) is integrated,

2, propeller drive arrangement according to FIG. 1, characterized in that; Circuit with at least one Kühlkaπal (14) in one of Kühikanai (14) on the one hand to a Seewassereiπiass (15) and on the other hand to a Seewasserausüass (16) is connected.

3. Propelierantriebsanordnung according to claim 2, characterized in that the Kühikanai (14) forms a cross-sectionally substantially U-shaped Kühlmantei.

4. Propeüerantriebsanordπung according to claim 2 or 3, characterized in that the cooling channel (14) essentially surrounds that of iuses (5),

5. Propelierantriebsanordnung according to one of the preceding che, characterized in that the transmission housing ι first housing portion (10) with a bevel gear for torque transmission and a second housing portion (11) with a Steuerge transmission of the control movement to the control line (12) associated with a common lubricant circuit, which can be cooled by the cooling device.

that the KühlkaπaS (14) substantially in a wall of the second housing portion (11) of the transmission housing (5) substantially radially outside of the control shaft (12) and the Getriebeausgangsweile (6)

This makes it easy to use a lubricant! the control housing (8) cools.

8. Propellerantπebsaπordnung according to one of the preceding Anspr-g e n e ze ze ch n, orders are provided in a ship.