CN2088973U - V type motor driven lighter - Google Patents

Abstract

The utility model relates to a vertical flowed high raised V type motor driven lighter, which is used for a self-sailing motor driven lightering ship of the freight transportation of freshwater main and branch flows. The horizontal profiles of the head and the tail are designed into V type, and the vertical flowed high raised whole stern is in V type; in the propelling system, the front end of the airscrew (5) is provided with a prerotation vane (4); the back end of the airscrew (5) is provided with a flow guiding cap (6). The prerotation vane (4), the airscrew (5) and the flow guiding cap (6) are arranged in series on the stern shaft (9), with the same shaft center. The utility model, through the real ship test, reduces the total resistance of the hull by 10 percent; under the condition of assuring that the economical speed (11, 5 km/h) is separately improved, compared with the original same-type ship, the loadage and the fuel consumption of unit power drop with larger extent, and the economic benefit is obvious.

Description

V type motor driven lighter

A kind ofly relate to vertical stream and rise tail V-type motor barge, be used for inland river Heavenly Stems and Earthly Branches stream goods transport self-propulsion type motor lighter, belong to boats and ships.

In the motor lighter of existing inland river, its afterbody bench section line style great majority are the U type.This kind tail type has two significant disadvantages: one easily produces whirlpool because afterbody is more plentiful, and form resistance is big; It two is that angle of rake water supply condition is not good, and U type ship tail mainly supplies water by hull bottom, and stern both sides current can't enter propelling unit, cause the propelling unit insufficient water.Thereby fluid velocity quickening, pressure decay, thrust reduce, and particularly in shallow draft waterway, the phenomenon of insufficient water is even more serious, causes fluid that stern is produced suction, backward dip, and hull resistance increases, and the speed of a ship or plane slows down.

At above-mentioned, the purpose of this utility model just is to provide a kind of form resistance little, and the propulsion coefficient height utilizes the hull appendages rectification, and the vertical stream that can supply water simultaneously in hull bottom and stern both sides rises tail V-type motor lighter.

The utility model utilizes fluid mechanics principle, and the head and the tail bench section line style of ship is designed to V-type, and the middle part is the U type, and afterbody rises, and whole ship becomes vertical stream to rise the tail V-type.In the propulsion system on the quarter, adopt stream line pattern single armed bracing strut, the front end preparation of propeller has pre-blade, uniform being welded on the propeller boss excircle of six pre-blades that comprises support arm, except that a slice of support arm own, all the other 5 is curved surface, profile such as blade for ceiling fan, different is turns over 90 ° with the pre-blade of fan leaf type and becomes axially welding, and the geometric diameter of its pre-blade is identical with diameter of propeller, and screw propeller be axial and all unequal pair variable pitch propeller of pitch radially, in the rear end of propeller conical dunce cap is housed, be processed with 3 flow deflectors identical with blade form, that size is less on the dunce cap excircle, 3 flow deflectors are uniform along 120 ° of angles of Zhou Shangcheng.The dunce cap inner chamber is processed with for fastening propeller screw thread.Pre-blade, screw propeller, dunce cap string are loaded on the tailing axle and concentric, by the bracing strut supporting, realize above-mentioned purpose with this.Below in conjunction with drawings and Examples in detail, principle of work of the present utility model and architectural feature are described in detail.

Description of drawings

Fig. 1 is a head and the tail body plan of the present utility model

Fig. 2 is a bow vertical profile half-breadth body lines

Fig. 3 is a bow waterline half breadth plan

Fig. 4 is a stern vertical profile half-breadth body lines

Fig. 5 is a stern waterline half breadth plan

Fig. 6 is a stern partial side view

Fig. 7 is the dunce cap axial view

Fig. 8 is that dunce cap C is to view

Fig. 9 is that pre-blade A is to view

Figure 10 is pre-blade D-D5 cutaway view

Consult Fig. 1, the bench section line style of its expression bow tail, it is V-type that No. 19, No. 20 and No. 0, No. 1, No. 2 cross-sectional upper threads are expressed the bow tail significantly.Same No. 9, No. 10 and No. 13, No. 14 cross-sectional upper threads show that amidships is the U type.Fig. 2 and Fig. 3 represent the half-breadth elevation profile and the waterplane body lines of bow respectively, and Fig. 4 and Fig. 5 represent stern half-breadth elevation profile and waterplane body lines, by Fig. 4 can see No. 3 buttock line significantly by amidships gradually to the afterbody perk.The utility model rises tail V-type ship type for vertical stream in above-mentioned figure.

Fig. 6 is a stern partial side view, the mutual position relation of main expression propulsion system member, it is made of stern coverboard (1), screw shaft pipe (2), single armed bracing strut (3), pre-blade (4), two variable pitch propeller (5), dunce cap (6), rudder (7), rudder post (8), tailing axle (9).Stern coverboard (1) is the part of hull, and it is the housing that is welded into by the polylith steel plate, and the member of propulsion system is mainly supported by stern coverboard (1).Screw shaft pipe (2) is long tube solid drawn pipe, is used for supporting and protection tailing axle (9), and its end bearing is on single armed bracing strut (3), and the other end is bearing in the tailing axle sleeve of stern.Single armed bracing strut (3) is a complex (consulting Fig. 9), its supporting arm (13) is the hollow coverboard of rectangular stream line pattern, upper end and stern coverboard (1) welding, lower end and the welding of support propeller boss, the uniform pre-blade (4) that is welded with on the excircle of propeller boss, pre-blade (4) comprises that supporting arm (13) has 3 at least.Except that supporting arm (13), all the other pre-blades are curved surface, shape such as blade for ceiling fan, and the pre-blade that different is will hang fan leaf type turns over 90 ° of one-tenth and axially is welded on the propeller boss, and its geometric diameter is identical with diameter of propeller, is made by metallic material.Pre-blade itself does not rotate, and its effect can make the turbulent water source that is flowed to the propelling unit place by hull bottom and hull bottom both sides, is prewhirled and rectification, reduces turbulence loss, and the main engine power that screw propeller is absorbed changes more high thrust into.Two nonuniform pitch propellers (5), though its principal character be on the blade face arbitrarily some pitch be axially or radially all unequal, and the pitch of any point all equates on its blade face of conventional propeller, the principal particulars of two variable pitch propellers be can obtain after making the current particle by the blade face larger axis to and radial acceleration, circumferential water velocity is less relatively, thereby thrust is bigger, the number of blade of propeller is 3, become 120 ° of angles uniform, use the metallic material inblock cast, it is sleeved on the tailing axle (9) and with key and connects, and it is positioned at pre-blade (4) afterwards.The complex that dunce cap (6) is made for metal, dunce cap body (10) they are conical, two planes (12) that supply the fastening dunce cap of spanner to use of cylindrical afterbody processing, and the inner chamber front portion of dunce cap body (10) is a screw, the inner chamber afterbody is a solid.Be welded with flow deflector (11) on the excircle of body, 3 flow deflectors become 120 ° of angles uniform.Flow deflector (11) is a curved slab, its shape such as blade, and size is little than the propeller leaf, and concrete structure can be consulted Fig. 7 and Fig. 8, and it is set on the tailing axle (9), comes two variable pitch propellers (5) of fastening front end by thread in inner cavity.Reduce the rotation of current on the footpath by dunce cap (6), thereby improve the propulsion coefficient of propeller.Dunce cap (6) is followed propeller and is rotated synchronously.Pre-blade (4), two variable pitch propeller (5), dunce cap (6) all go here and theres and are loaded on tailing axle (9) and concentric, and different is, and pre-blade (4) directly is not contained on the tailing axle (9) but be welded on the propeller boss of tailing axle, and propeller boss is set on the screw shaft pipe (2).Screw shaft pipe (2) is a microscler solid drawn pipe, its containing, supporting, protection and lubricated tailing axle (9).Tailing axle (9) is a major axis, and the tween drive shaft in its front end and the cabin links, and has keyway in rear end and propeller socket place, and tail end is processed with screw thread.Is that key on the tailing axle passes to propeller by the power of driving engine output by axle, promotes motion of ship.Propeller is fastened on propeller on the tailing axle by the dunce cap (6) of rear end.

The control of barge sense of motion is realized by the rudder (7) that is positioned at behind the dunce cap (6).Rudder (7) is trapezoidal hollow coverboard, and cross-sectional plane is a stream line pattern, and it is supported by rudder post (8), and can water 80 ° of swings about rudder post (8) work.

The utility model is through full scale test, and the hull total drag descends about 10%, and the speed of a ship or plane increases than similar boats and ships, and under the condition that guarantees economic speed (11.5km/h), the cargo capacity of unit power is to carry 5.44 tons by original every kilowatt.Bring up to every kilowatt and carry 6.8 tons, the oil consumption of every kiloton km is reduced to 5 kilograms, remarkable in economical benefits by 7 kilograms.Can realize simultaneously loading simultaneously in deck, the cabin, load factor reaches 2.5m ³/ t, because the big opening in deck, the goods center of gravity reduces, the stability of ship improves.Behaviour at sea and maneuvering performance all can satisfy code requirement, and increase than existing ship.The same available other types boats and ships of propulsion system of the present utility model.

Claims (3)

1, a kind ofly relate to vertical stream and rise tail V-type motor barge, be used for inland river Heavenly Stems and Earthly Branches stream goods transport self-propulsion type motor lighter, it utilizes fluid mechanics principle, reduce hull resistance and improve propulsion system, it is characterized in that, the head and the tail bench section line style of ship is designed to V-type, the middle part is the U type, afterbody rises, whole ship becomes vertical stream to rise the tail V-type, in the propulsion system on the quarter, adopt stream line pattern single armed bracing strut, the front end of propeller is prepared pre-blade, uniform being welded on the propeller boss excircle of pre-blade that comprises support arm, except that a slice of support arm own, all the other pre-blades are curved surface, profile such as blade for ceiling fan, the pre-blade that hangs fan leaf type is turned over 90 ° become axially welding, the geometric diameter of pre-blade is identical with diameter of propeller, screw propeller is all unequal pair variable pitch propeller of pitch axially and radially, in the rear end of propeller conical dunce cap is housed, be processed with on the dunce cap excircle 3 identical with blade form, the flow deflector that size is less, 3 flow deflectors become 120 ° of angles uniform, the dunce cap inner chamber is processed with for fastening propeller screw thread, propulsion system is by stern coverboard [1], screw shaft pipe [2], single armed bracing strut [3], pre-blade [4], two variable pitch propellers [5], dunce cap [6], rudder [7], rudder post [8], tailing axle [9] constitutes, screw shaft pipe [2] is long tubular solid drawn pipe, one end bearing is on the quarter in the tailing axle sleeve, the other end is bearing on the single armed axle bearing support [3], single armed bracing strut [3], upper end and stern coverboard [1] welding, lower end and propeller boss welding, two nonuniform pitch propellers [5] are sleeved on the tailing axle [9], dunce cap [6] adopts screw thread to connect the also screw propeller [5] of fastening front end with tailing axle [9], rudder [7] is supported by rudder post [8], rudder post [8] is bearing on the planking [1], pre-blade [4], two displacement spiral shells [5], dunce cap [6] string is loaded on tailing axle [9] and goes up and concentric.

2, vertical stream according to claim 1 rises tail V-type motor barge, it is characterized in that, pre-blade (4) is distributed on the propeller boss, and except that supporting arm (13) cross-sectional plane is the stream line pattern, all the other pre-blade cross-sectional planes are curved surface, and pre-blade itself does not rotate.

3, vertical stream according to claim 1 rises tail V-type motor barge, it is characterized in that dunce cap (6) is for conical, flow deflector (11) is to becoming 120 ° of angles to be welded on the dunce cap body (10), the inner chamber front end of body (10) is processed with screw thread, the rear end is a solid, the tail end cylindrical is processed with the plane of using for fastening propeller (12), and dunce cap (6) is followed propeller (5) rotation synchronously.

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