Ship propulsion motor installation type "rotary column"

 

(57) Abstract:

The invention relates to the field of shipbuilding, in particular to structures for ship propulsion and propulsion type rotary column, and can be used in the design and construction of vessels for various purposes. Ship digitalno musculoskeletal system includes a set can be rotated in a horizontal plane sealed streamlined housing with a motor and propeller screw. The drive motor is made birotational rotating in opposite directions stator, connected to the shaft of the propeller, and rotor connected to the other shaft is installed over the crest of the screw contrrolled, when this shaft the latter is installed inside the hollow shaft of the propeller. Achieved increased efficiency of the installation while improving the capabilities of handling and maneuvering of the vessel with minimal energy costs. 1 Il.

The invention relates to the field of shipbuilding in particular, to the designs of ship propulsion and propulsion type rotary column".

Known ship propulsion motor installation type "regards smeshannyi in the hull (see book A. C. Hoffmann. Propulsion and steering complex and maneuvering of the vessel. L., "Shipbuilding", 1988, page 17).

The specified device has an angular transmission of torque from the engine to the propeller, which reduces the reliability of the design, reduces the efficiency due to the additional mechanical losses. The location of the engine in the hull reduces the useful volume of the holds of the vessel.

The closest analogue of the invention is the ship propulsion motor installation type "rotary column containing enclosed in a sealed streamlined casing drive motor and connected therewith through a propeller shaft, and a casing mounted to rotate in the horizontal plane (see log for "NAVIGATOR", international marine log N 2/94, page 8, photo: propulsion type "AZIPOD").

Design is the closest analogue involves the placement of the motor in a sealed streamlined casing of the rotary columns, which increases the usable volume of the vessel's holds, and the number of alternative layout solutions General location in the hull.

The disadvantage is the closest analogue is the reduced coefficient of polezno.

These losses are caused by pressure on the nose of the hub (the resultant force is directed against the vector position), which occurs due to the presence of hub vortex behind the propeller screw. Hub (axial) vortex appears due to induced CP propeller circumferential (tangential) caused by flow rates. In addition, it should be noted that the relative diameter of the hub of the propeller due to the placement of the motor is not less than darticle/D =0,3. When the relative diameter of the hub of the propeller darticle/D = 0.3 loss on the fairing (reduced emphasis of the propeller) is 4-5%.

The technical result of the invention is to increase efficiency propulsion-propulsion "swivel column".

This solved the problem of creating the design of marine propulsion and propulsion type rotary column, allowing the maximum possible elimination of hydrodynamic losses and create additional emphasis to increase the efficiency of the latter is mainly when it is used as the main propulsion installation, while improving opportunities controllability and Mai, in ship propulsion motor installation type "rotary column containing enclosed in a sealed streamlined casing drive motor and connected therewith through a propeller shaft, and a casing mounted to rotate in a horizontal plane, the motor made birotational rotating in opposite directions stator, connected to the shaft of the propeller, and rotor connected to the other shaft with a coaxially mounted for rowing screw contrrolled, while the latter has a shaft within a shaft of the propeller, is made hollow and passing through secured at its aft end of the hub of the propeller, and connected the other end to the hub of centerproperty, and the side surface of the latter forms with the end surface of the fairing centerproperty and side surfaces of the hub of the propeller and the aft shroud hydrodynamically streamlined body. To increase hydrodynamic efficiency modes with a large load (trawling, towing, storm conditions) propulsion motor installation can be accomplished with the placement of the propeller and centerproperty in the guide on the mounting of the vessel, view of Assembly a section in the longitudinal plane.

A specific example of the invention is the ship propulsion motor installation type "rotary column containing the propeller 1 and coaxially placed him contrrolled 2. Propeller 1 fixed on the hollow shaft 3 attached to the rotating stator 4 birotational motor 5. Contrrolled 2 mounted on the shaft 6 passing inside the axial cavity of the propeller shaft 3, the opposite end of which (shaft 6) is connected with the rotor 7 birotational motor 5. Stops from the propeller and centerproperty transmitted through the thrust bearings 8 and 9 respectively. Bearings of the rotor and stator on the drawing is not marked. For sealing the casing 10 has a seal 11. Contrrolled equipped with a Radome 12. Propeller and contrrolled placed in the guide nozzle 13. The casing 10 is made to rotate about a vertical axis 14.

Propulsion-propulsion system type "rotary column" works as follows.

Birotational engine 5 by means of rotating in opposite directions of the rotor 7 and the stator 4 through the shafts 6 and 3 respectively leads is masegosa stator 4 on the shafts of the propeller 1 and centerproperty 2 will be equal moments (M1=M2) in the whole range of hydrodynamic loads (when the rotational speed of the propeller n1and centerproperty n2n1=n2- a special case when the equality of the required capacity on the rowing screw and contrrolled). The moments of M1= M2demonstrates the practical elimination of residual spin flow for contrrolled 2 and, consequently, the maximum hydrodynamic efficiency of the installation.

Ship propulsion motor installation type "rotary column containing enclosed in a sealed streamlined casing drive motor and connected therewith through a propeller shaft, and a casing mounted to rotate in a horizontal plane, wherein the drive motor is made birotational rotating in opposite directions stator, connected to the shaft of the propeller, and rotor connected to the other shaft with a coaxially mounted for rowing screw contrrolled, while the latter has a shaft within a shaft of the propeller, made hollow, and through fixed on its aft end of the hub of the propeller, and connected to its other, the fairing of centerproperty and side surfaces of the hub of the propeller and the aft shroud hydrodynamically streamlined body.

 

Same patents:
The invention relates to the field of shipbuilding and can be used in the creation of marine electric propulsion systems with submersible (placed directly in sea water) rowing motors

The invention relates to shipbuilding, propulsion type rotary column"

The invention relates to shipbuilding, propulsion type rotary column"

The invention relates to shipbuilding, in particular to power plants ships with shaft generator and frequency converters, mainly with diesel main engines

The invention relates to shipbuilding, in particular to power plants ships with shaft generator and frequency converters, mainly with diesel main engines

The drive // 2104606
The invention relates to mechanical engineering, in particular to actuators

The invention relates to shipbuilding, in particular to a device for the rotation of the propeller shaft

Water jet // 2047539
The invention relates to shipbuilding and can be used to create the propulsion of ships with improved acoustic performance

The invention relates to shipbuilding, and more specifically to the ferries, designed for high-speed transportation vehicles with passengers

Outboard motor // 2098317
The invention relates to shipbuilding, namely, outboard motors, designed to equip small-sized vessels of light class with a small displacement, tourist or business destination

Outboard motor // 2098317
The invention relates to shipbuilding, namely, outboard motors, designed to equip small-sized vessels of light class with a small displacement, tourist or business destination

The invention relates to shipbuilding, in particular in the main propulsion installations of ships
Ship // 2072160

The invention relates to shipbuilding, particularly for outboard motors

FIELD: bridge erection and crossing equipment; pontoon parks.

SUBSTANCE: proposed mounting includes frame, transom board, cross-piece, spacer and two side members. Cross-piece is made in form of beam secured on force portion of pontoon by means of pin joint and provided with shaped bolts for securing on pontoon transom. Spacer is made in form of distance truss with lower and upper brackets supported by fore portion of pontoon and is secured to cross-piece by means of bolts; frame is connected with cross-piece by means of fork joint and is supported by spacer; articulated to each strut of frame is side member which may be fixed in working position; both side members are provided with plates to which transom board is secured. Besides that, struts of frame are provided with brackets and transversal couplings of side members are provided with lugs; brackets and lugs have two parallel holes each where axles and pins-retainers are fitted in skew-symmetric position relative to side member. Proposed device ensures motorization of pontoon and compact transportation due to folding of mounting in transportation position reducing volume by 3 times.

EFFECT: enhanced efficiency and reliability.

2 cl, 8 dwg

Up!