CN1295959A

CN1295959A - Link oar type propeller for ship

Info

Publication number: CN1295959A
Application number: CN 00131298
Authority: CN
Inventors: 王玉贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-19
Filing date: 2000-12-19
Publication date: 2001-05-23

Abstract

A ship propeller is characterized by that it possesses a driving crankshaft mounted on ship body and at least a driven crankshaft, the above-mentioned crankshaft is connected with a connecting rod by mean sof crank, and several paddles are mounted on the said connecting rod, the above-mentioned paddles can be fixedly assembled together with the connecting rod, and are perpendicular to the said connecting rod. The described paddles also can be pivoted together with connecting rod. When the movement direction of paddles is identical to the running direction of ship, the paddles can be flatly close to the connecting rod, and when their directions are opposite, the paddles are perpendicular to the connecting rod. Said invention is simple in structure, high in propellant efficiency and good in movement continuity.

Description

Link oar type propeller for ship

The invention belongs to the propelling unit of boats and ships.

Marine propulsion mainly contains four big classes, i.e. propeller type propelling unit, paddlewheel propulsion device, manual wooden oar, punt-pole big shield etc. and water jet or jet propeller at present.The propeller type propelling unit is its usefulness of competence exertion under fair speed only, and efficient was lower when rotating speed was low, and deceleration and stopping performance is relatively poor.The paddlewheel propulsion device is done a large amount of idle works because need dish out water to the tangential direction of wheel all the time, and efficient is lower than spiral, seldom uses now, only uses on the small part amusement and exercising ship.Manually operated toolses such as wood oar, punt-pole, big shield, poor continuity, and not convenient with the machine drive, seldom be used for large ship.Water jet or jet propeller efficient is lower, also be unfavorable for extensive use.The ZL88207823.3 utility model patent discloses a kind of water-skiing device that is used for amusement on water, exerciser, it is that oar is installed on the bent axle, with oar upper end insert one not only rotatable but also slidably in the bearing, when foot-operated the driving, oar can move in a circle with bent axle.Water surface limit drying is backward inserted on the limit during oar entry, and the limit is extracted the water surface out in the drying limit backward during water outlet, avoids forming big spray.When this device part has overcome the entry of paddlewheel propulsion device blade to water bounce with water outlet the time the hydrodynamic(al) of raising do, efficient increases, but its oar when entry and water outlet still with the water surface at an angle, still need do certain idle work, efficient is difficult to increase substantially.Moreover its oar is not all the time in vertical state in water, and therefore the promotion that obtains can not be maximum, also influenced its efficient.

The object of the present invention is to provide a kind of simple in structure, propulsion coefficient is high and continuity is good link oar type ship propeller.

For achieving the above object, the present invention adopts following technical scheme: a kind of link oar type propeller for ship, it has and is contained in main on the hull and drives bent axle and at least one from dynamic crankshaft, and above-mentioned bent axle all is connected with a connecting rod by crank, and some oars are housed on this connecting rod.

Described oar and connecting rod are solidly installed and are perpendicular with connecting rod.From dynamic crankshaft is two, is positioned on the same horizon with the main bent axle that drives, and all is contained in more than the hull floating line.

Described oar also can be journaled into connecting rod, and oar is flattened on the connecting rod when sense of motion is consistent with the shipping agency direction, and oar is vertical with connecting rod when sense of motion is opposite with the shipping agency direction.From dynamic crankshaft is two, is positioned on the same horizon with the main bent axle that drives.Connecting rod is provided with the support reinforcing backup plate.

This propelling unit can each side be adorned a cover at ship, and the main bent axle that drives of two covering devices is driven by the engine installation on the ship.Oar in working order the time all the time perpendicular to connecting rod, so propelling thrust maximum that obtains during drying, and do not do any idle work.Even oar also is all the time in vertical state when entry, water outlet, without any clap water, the hydrodynamic(al) of raising does, and therefore also do not do any idle work.Some oars of adorning on the connecting rod are equivalent to a plurality of water wheels oars works simultaneously, so efficient is apparently higher than existing propelling unit.

Describe the present invention in detail below in conjunction with accompanying drawing:

Fig. 1 is embodiment 1 a connecting rod oar propulsive unit scheme drawing, and wherein dotted arrow is represented the sense of motion of oar, and solid arrow is represented the direction of current antagonistic force F;

Fig. 2-1,2-2,2-3,2-4,2-5 are the working state schematic representation of propelling unit shown in Figure 1, dotted line is represented the floating line of ship, wherein Fig. 2-1 is connecting rod and the view of oar when the water surface is above, and Fig. 2-2 is connecting rod and the oar view when just wanting entry; Fig. 2-3 is connecting rod and the working state schematic representation of oar below the water surface; Fig. 2-4 is about to the view of water outlet for connecting rod and oar; Fig. 2-5 is the view after connecting rod and the oar water outlet;

Scheme drawing when Fig. 3 is contained in the single hull both sides for embodiment 1 connecting rod oar propulsive unit;

Scheme drawing when Fig. 4 is contained in the catamaran centre for embodiment 1 connecting rod oar propulsive unit;

Fig. 5 is the path of motion scheme drawing of embodiment 1 oar, and wherein the solid line circle is represented the path of motion on oar top, and broken circle is represented the path of motion of oar bottom;

Fig. 6-1 is the scheme drawing of embodiment 2 connecting rod oar propulsive unit oars when being flattened on the connecting rod, and Fig. 6-2 is the scheme drawing of oar when vertical with connecting rod, and wherein dotted arrow is represented the sense of motion of oar, and solid arrow is represented the direction of current antagonistic force F;

Fig. 7 is the path of motion scheme drawing of oar in the embodiment 2 connecting rod oar propulsive units.

Embodiment 1: this connecting rod oar with propelling unit as shown in Figure 1, the main bent axle 1, two of driving is contained in hull one side from dynamic crankshaft 2, above-mentioned three-crankshaft all is contained in more than the hull floating line, and is positioned on the same horizon.The main bent axle 1, two of driving all is connected with connecting rod 4 by crank 3 from dynamic crankshaft 2, is fixed with some oars 5 on the connecting rod 4, and oar 5 and connecting rod 4 are orthogonal.The main bent axle 1 that drives is driven by engine installation on the ship.Connecting rod 4 drives in addition two and rotates synchronously from dynamic crankshaft 2 is directed, Fig. 2-1 has represented propelling unit different operating view to 2-5, as can be seen from the figure, connecting rod 4 on the gos remain horizontality, therefore the oar 5 on the connecting rod 4 is also all the time perpendicular to connecting rod 4, connecting rod drives in the process of oar entry work, the oar face is subjected to current antagonistic force F parallel with connecting rod all the time, thereby the current antagonistic force F maximum that oar is obtained, be the propelling thrust maximum that ship obtains, the work efficiency of propelling unit is also the highest.Simultaneously, oar does not bounce the water surface in entry and exiting water process and the hydrodynamic(al) of raising is done, and has overcome as the paddlewheel propulsion device water is dished out to the tangential direction of circle all the time, does the drawback of a large amount of idle works.Fig. 5 has represented the path of motion scheme drawing of embodiment 1 propelling unit oar.

For single hull, as shown in Figure 3, the above-mentioned marine propulsion of a cover is housed respectively in hull 7 both sides.In the course of the work, the propelling unit working process of hull both sides is always relative with state.If promptly Left Hand Pusher is in when going into water state, the right side propelling unit then is in and will goes out water state, and vice versa.If Left Hand Pusher is more than the water surface, when being in off working state, the right side propelling unit is then in running order below the water surface.The connecting rod of both sides propelling unit and oar replace the entry water outlet, promote boats and ships and continue seaway.If make the bent axle counter-rotation, just can realize reversing.The bent axle of the ship left and right sides can be coaxial, also can disalignment, and disalignment is more flexible, and the both sides bent axle is under the driving of each ultromotivity, if hand of rotation is opposite, just can make ship in the original place fast rotational, and manoevreability is good.

For catamaran, propelling unit is contained in two amidships, can adorn a cover propelling unit on two ship hulls 7 respectively, and its working process is identical with the propelling unit working process on the above-mentioned single hull.Also can be as shown in Figure 4, the crank of propelling unit on two ships is connected as a single entity.

Embodiment 2: this propelling unit generally only is applicable on the submarine.This device has main 1, two on a bent axle of driving equally from dynamic crankshaft 2, and above-mentioned bent axle is contained in hull one side, and is positioned on the same horizon.Three-crankshaft is connected with connecting rod 4 by crank 3, connects on 4 some oars 5 are housed.Oar 5 is contained on the connecting rod 4 by pivot.Different with embodiment 1 propelling unit is, oar 5 is in off position when sense of motion is consistent with the shipping agency direction, and being the level of state is flattened on the connecting rod, shown in Fig. 6-1; And when sense of motion was opposite with the shipping agency direction, in running order, oar was vertical with connecting rod, shown in Fig. 6-2, thereby guaranteed to obtain maximum propelling thrust F.Fig. 7 has represented the path of motion of embodiment 2 oars.In order to make oar when working, can bear the antagonistic force of water, on the connecting rod at the every oar back side, be provided with supporting rib stiffener 6.Respectively adorn the above-mentioned propelling unit of a cover in the submarine both sides, can promote navigation of submarine.

Claims

1, a kind of link oar type propeller for ship is characterized in that, it has and is contained in main on the hull and drives bent axle and at least one from dynamic crankshaft, and above-mentioned bent axle all is connected with a connecting rod by crank, and some oars are housed on this connecting rod.

2, marine propulsion as claimed in claim 1 is characterized in that, described oar and connecting rod are solidly installed and are perpendicular with connecting rod.

3, marine propulsion as claimed in claim 1 is characterized in that, described oar is journaled into connecting rod, and oar is flattened on the connecting rod when sense of motion is consistent with the shipping agency direction, and oar is vertical with connecting rod when sense of motion is opposite with the shipping agency direction.

4, marine propulsion as claimed in claim 2 is characterized in that, above-mentioned is two from dynamic crankshaft, is positioned on the same horizon with the main bent axle that drives, and all is contained in more than the hull floating line.

5, marine propulsion as claimed in claim 3 is characterized in that: above-mentioned is two from dynamic crankshaft, is positioned on the same horizon with the main bent axle that drives.

6, as claim 3 or 5 described propelling units, it is characterized in that: connecting rod is provided with the support reinforcing backup plate.