CN201849656U

CN201849656U - Sail propulsion module

Info

Publication number: CN201849656U
Application number: CN2010205911037U
Authority: CN
Inventors: 崔礼东; 曹馨湖; 王静竹
Original assignee: Dalian Maritime University
Current assignee: Dalian Maritime University
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2011-06-01
Anticipated expiration: 2020-10-29

Abstract

A sail propulsion module is characterized in that the module comprises a sail, a mast, a mast clutch, a buoyant device, an outer extensional beam, a thrust shaft and a control device, wherein the mast is fixed in the mast clutch, the buoyant device is fixed at the tail end of the outer extensional beam, the thrust shaft is connected with a main ship body, and the buoyant device consists of a buoyant body and hydroflaps, the control device comprises an attack angle adjustment system and an automatic sail reefing system. The sail propulsion module of the utility model only generates propelling force to the ship body, can not generate heeling moment, so as to fundamentally solve the problem that the sailing ship heels when being blown by wind; the transverse stability of the ship can be kept without a heavy keel or manual movement, so ship weight is reduced, ship cost is reduced, and load of crews is reduced; and since the transverse stability is free from being considered, the area of the sail is not limited, and the ships with any shipping tons can be propelled.

Description

A kind of sail propulsion die

Technical field

The utility model relates to a kind of sail propelling unit.

Background technology

When existing sail navigated by water at shipboard wind, the side force that sail produces passed to hull by mast, causes very big heeling moment, has greatly influenced the transverse stability of ship, and may cause the goods collapse of setting, and sailing boat is toppled easily.Traditional galleon is installed heavy keel alow, or buoyancy aid by the board is installed, with the heeling moment of balance sail generation.When meeting strong gusts of wind, when having little time reefing, ship still might topple; Heavy keel or buoyancy aid have increased the weight and the cost of ship, have reduced the capacity weight of ship; In addition, strong gusts of wind also may make the mast that is fixed in the hull fracture.Therefore, even if heavy keel are installed or buoyancy aid by the board is installed, the area of sail still can not be too big, otherwise excessive heeling moment can capsize the boat during crosswind.This makes the application of sail on modern merchant ship be restricted, and only is used as auxiliary power unit.Traditional small-sized no keel sailing boat need move by the crewman, changes weight distribution and keeps balance.This method had both limited activity, increased work, and was relatively more dangerous again.When meeting strong gusts of wind, ship still may topple, and as the wind direction sudden change, the crewman has little time to move, and it is unavoidable especially then to topple.

The utility model content

The heeling moment that sail produces during for the balance crosswind, the utility model provides a kind of sail propulsion die.

The technical scheme that the utility model is adopted for achieving the above object is: a kind of sail propulsion die, it is characterized in that: comprise sail, mast, mast step, buoyant device, overhanging beam, thrust shaft and control convenience, mast is fixed in the mast step, buoyant device is fixed on described overhanging beam end, and thrust shaft is connected with main body.

Described buoyant device is made up of buoyancy aid and hydrofoil.

Described control convenience comprises angle of attack Adjustment System and automatic reefing system.

Sail propulsion die of the present utility model only produces propulsive force to hull, does not produce heeling moment, has fundamentally solved the problem of heel behind the sailing boat wind-engaging; Do not need heavy keel or personnel movement, just can keep the lateral stability of ship, help lighten ship, reduce the ship valency, alleviate crewman's burden; Owing to need not consider transverse stability, sail area is unrestricted, can advance the boats and ships of any tonnage.

Description of drawings

Fig. 1 is the integral structure figure of the utility model sail propulsion die;

Fig. 2 is the integral structure figure that the sail propulsion die is installed;

Fig. 3 is the mounting structure figure of sail propulsion die at the ship stern;

Fig. 4 is the mounting structure figure of the buoyant device of starboard.

The specific embodiment

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the sail propulsion die comprises: sail 1, mast 2, mast step 3, buoyant device 4, overhanging beam 5, thrust shaft 6, and control convenience etc.

The sail type of sail 1 can be existing any sail type; The form of mast 2 can be existing arbitrary form, and the root of mast 2 is vertically fixed in the described mast step 3; Buoyant device 4 is made up of buoyancy aid and hydrofoil, and each cover of port and starboard is fixed on described overhanging beam 5 ends; Overhanging beam 5 constitutes a ⊥ type rigid frame with described mast 2; Buoyant device 4 and described overhanging beam 5 should be in the confine waters or port invagination overlapping rise, in order to avoid bump against with foreign object; The sail propulsion die is connected with main body by described thrust shaft 6, and the thrust of sail propulsion die generation passes to thrust baring or other structures in the hull by described thrust shaft 6; Thrust shaft 6 should allow described sail propulsion die on the hull longitudinal direction rotational freedom to be arranged, thereby makes mast step 3 become rotating base; In some cases, thrust shaft 6 can also be locked, do not allow the sail propulsion die on the hull longitudinal direction rotational freedom to be arranged; Control convenience comprises angle of attack Adjustment System, automatic reefing system etc., its objective is the state of adjusting the sail propulsion die according to the motion conditions of the wind, unrestrained intensity and the boats and ships that observe, so that sail propulsion die performance maximal efficiency, and guarantee safety of ship; The sail propulsion die can be general module series through being standardized into, and satisfies the not demand of shipmate type.

As Fig. 1, Fig. 2, shown in Figure 3, the sail propulsion die is installed on the ship stern trimming flag outside of an offshore container ship, and its principle of work is as follows: when ship wind-engaging or with the wind the time, sail 1 does not produce heeling moment not, module keeps balance automatically.

Stablized crosswind (there is no harm in false wind blows from starboard) when ship and do the time spent, wind-force makes module be axial larboard swing with thrust shaft 6 to the square of thrust shaft 6.Along with buoyant device 4 entry gradually of larboard, the buoyancy of its generation increases gradually.When this buoyancy thrust shaft 6 squares are equated with the square of wind-force, module stops aport to swing, balance under a certain pivot angle.This moment, the heeling moment of wind was offset fully by moment of buoyancy, and can not act on becomes the moment that capsizes the boat on the hull, and module is exported propulsive force to ship.

When stablizing crosswind intensity when excessive, the maximum moment of buoyancy that module can produce can't with the suffered wind moment balance of module, so module continues swing aport.If pivot angle surpasses 90 °, sail 1 will touch water.In fact, this situation can not take place, because along with pivot angle constantly increases, sail 1 constantly reduces at the area of conter of wind direction normal plane, and wind constantly reduces the application force of sail 1, and wind moment also constantly reduces, and when pivot angle reached 90 °, wind moment was actually 0.And as long as ship has speed to water, regardless of pivot angle, the moment of buoyancy that hydrofoil in the buoyant device 4 produces is all constant, under a certain pivot angle, moment of buoyancy always can with the wind moment balance.So module is stablized extreme crosswind and done the time spent, can't swing to 90 °.Moreover control system is reefing or directly release control rigging fast according to circumstances, reduces area exposed to the wind and wind moment, thereby makes the module recovery balance.

Consider extreme case, strong sidegust momentary action is on sail.To traditional sailing boat, this causes shipwreck or mast to fracture probably.For the sailing boat that this module has been installed, strong sidegust can allow module significantly swing at short notice.Suppose that because effect of inertia pivot angle surpasses 90 °, then sail 1 touches water, may be damaged, and compares but fracture with shipwreck or mast, and this loss is less relatively.As seen, under extreme case, this module has the function of overload protection.

In confine waters or port, buoyant device 4 and overhanging beam 5 folding packing up are in order to avoid bump against with foreign object.To not have buoyancy this moment and produce, wind moment can not be cancelled, and the crosswind of any intensity all can make the module lack of equilibrium, so should lock thrust shaft 6, make it and can not rotate, then the heeling moment that causes of sail 1 directly acts on the hull, and module is not only thrust output but also export heeling moment externally.For avoiding ship to topple, suitably reefing, or request tugboat is assisted.

Claims

1. sail propulsion die, it is characterized in that: comprise sail (1), mast (2), mast step (3), buoyant device (4), overhanging beam (5), thrust shaft (6) and control convenience, mast (2) is fixed in the mast step (3), buoyant device (4) is fixed on described overhanging beam (5) end, and thrust shaft (6) is connected with main body.

2. a kind of sail propulsion die according to claim 1 is characterized in that: described buoyant device (4) is made up of buoyancy aid and hydrofoil.

3. a kind of sail propulsion die according to claim 1 is characterized in that: described control convenience comprises angle of attack Adjustment System and automatic reefing system.