CN202439836U

CN202439836U - Ship propulsion device

Info

Publication number: CN202439836U
Application number: CN2011204712492U
Authority: CN
Inventors: 俞苗根
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-09-19
Anticipated expiration: 2021-11-24

Abstract

A ship propulsion device is composed of a stationary housing, a synchronous pulley mechanism, a double-crank mechanism, blades and an input sprocket wheel. When the input sprocket wheel is driven by an external torque to rotate clockwise, the upper and lower synchronous pulleys in the stationary housing are driven by a synchronous belt to rotate clockwise and synchronously at the same time, and double cranks on upper and lower synchronous pulley supporting shafts at two sides out of the stationary housing are also driven to rotate clockwise around respective shaft axes. Two rotating pins at the rotating ends of the double cranks rotate anticlockwise around the centers of respective revolute pairs under the restriction of a fixedly-connected blade, and then the blades fixedly-connected with the rotating pins are always driven to rotate circumferentially in a plane around the center of the synchronous pulley mechanism in a perpendicular state. After the propulsion device is fixed on the tail end or the two sides of a ship for driving, the ship can be driven to forge ahead in a highly-efficient, energy-saving and environment-friendly manner. If the input sprocket wheel is driven to rotate anticlockwise, then the ship will go backward with the same characteristics.

Description

Marine propulsion

Technical field

The utility model relates to a kind of marine propulsion, the marine propulsion that is particularly combined by synchronous pulley Agency And crank mechanism.

Background technology

Since the mankind invented boats and ships, the quality of propelling unit was directly connected to the speed of boats and ships gait of march and the height of work efficiency.Influence degree to environment becomes an important techniques index again in recent years.Current, common marine propulsion mainly contains hand paddle, hand big shield, hand punt-pole, sail, paddle wheel and screw propeller etc.Wherein, the most popular propeller plant that also belongs to.Be characterized in simple in structure, volume is little, easy to use.But its shortcoming is, when high-speed operation, can produce the cavity phenomenon, seriously hindered boats and ships and developed to high speed.Particularly screw propeller boats and ships propelling unit all is installed in the below of boats and ships tail end usually, must pull the plug fully, therefore, should not in the navigation channel of shallow water, use.Special in the winter of cruiseway, owing to cause that the navigation channel river is very shallow low water season, the boats and ships that cause screw propeller to advance can't normally navigate by water.The shape of each sheet blade is a space spiral curved surface in the propeller plant in addition; The component of its meeting output X, Y, three directions of Z when work; Wherein advance the effective power that boats and ships advance except that the component of a direction can produce, all the other two component all do be unfavorable for that boats and ships advance stir the water motion, not only consumed a large amount of energy and flogged a dead horse; Especially harm is that ship is crossed part and can the general water surface of going up of all backward, corrupt and reactionary things that be deposited in river course bottom seriously have been polluted the clean and tidy of river surface.Therefore, the river course in general city does not generally allow the boats and ships navigation at a high speed above that screw propeller advances.

Traditional paddlewheel propulsion device; Since its a plurality of blades all be distributed in radially transmission shaft around; Each sheet blade overall process from the entry to the water outlet when work all will be passed through setting-out, struck and the water lift three phases; Have only when each sheet blade to turn to when being vertical stage with the water surface, the efficient of striking that this blade mode of operation is produced is the highest.When being rotated further, this blade is because no longer perpendicular with horizontal surface again, some power is being done water lift work on it, and this is the normal navigation that is unfavorable for boats and ships.Equally when another adjacent work blade sheet gets in the water; Because this moment, this blade did not turn to horizontal by the vertical stage as yet; Understand some power in its process of in water, striking and doing the setting-out motion, this also is the unfavorable factor that hinders the boats and ships normal operation.Because each sheet blade can not be vertical mode of operation with the water surface in the whole process from the entry to the water outlet at work all the time, so the propulsion coefficient of paddlewheel propulsion device is also not too high.So it is bright in rare as angle of rake boats and ships to use this device at present.

The utility model content

Freestyle swimming posture when the purpose of the utility model provides a kind of similar human swimming, but the new and effective of essential distinction, the marine propulsion of energy-conservation environmental protection are again arranged with it.

The technical scheme of the utility model is; This device is by casing, synchronous band, synchronous pulley and bolster thereof, four cranks, two blades; Tension wheel and drive sprocket are formed; In the casing is sealed hollow; Its top has 2-4 internal thread hole to be used for fixing the afterbody of boats and ships or both sides (using two these propelling units of cover), its inside arrange up and down the identical synchronous pulley of a pair of number of teeth by one synchronously band they are constituted one group of hand of rotation unanimity and the synchronous transmission device of operating speed, each is fixing a bolster at the endoporus of synchronous pulley; Before and after the necked part at these bolster two ends and the casing between the tank wall of both sides for normal-running fit and be provided with sealing arrangement; And all stretch outside the casing tank wall at the two ends of bolster, and each is captiveed joint with the fixed end of a crank on the external part of bolster about both sides before and after it, and two cranks up and down of its homonymy are in the same way to be arranged; But two groups of its phase places of double crank of both sides, front and back are just differing 180 °; Two blades be separately fixed at casing outer before and after both sides up and down in the rotational pin of the rotation end of two cranks, tension wheel up and down between two synchronous pulleys synchronously on the slack list with a side, is used to regulate the elasticity of synchronous band when work at box house; At the upper support axle crank fixed end of casing front side and the axle journal sponson between the tank wall sprocket wheel that is being connected simultaneously, being used for outside, moment loading drives whole propelling unit normal operation down.

And the length of its every crank of the two groups of double-crank mechanisms in front and back in the composition casing outside must be identical with shape; Each constitutes revolute pair with a rotational pin on the rotation end of every crank; An outside side of its rotational pin all has groove, and its width is arranged the internal thread hole of a break-through greater than the thickness of blade in the direction vertical with groove; Be used for passing the through hole on the blade under the effect of each comfortable screw; The rotational pin that the every pair of crank rotates on the end can be fixed a slice blade, and the clearance length of every crank must be less than the distance between two synchronous pulley central axis up and down, otherwise can interfere phenomenon in the running.

Two blades are the oblong thin slice of fillet around all being in this device; Its thickness must be slightly less than the width that crank rotates end bearing pin one side trench; It rotates end rotational pin groove with crank and cooperates on the relevant position of a side and have two somewhat larger in diameter in the circular hole of tightening screw diameter; And the centre distance between this two hole must strictness equals up and down the distance between two synchronous pulley central axis; Two cranks and two cranks rotated the rotational pin on the end and are fixed on a slice blade in the rotational pin groove about both sides all had outside casing like this; Two groups of complete double-crank mechanisms before and after under the connection of tightening screw, constituting, but 180 ° of the phase phasic differences of two blades of both sides, front and back.

When moment of face drive sprocket clickwise; Then drive the upper support axle and on last synchronous pulley clickwise; Last synchronous pulley is delivered to down synchronous pulley and the also synchronous in the same way simultaneously clickwise of lower support axle through synchronous band; And the bent axle fixed end that is fixed on the lower support external part is also made clickwise around the axial line of each bolster simultaneously; And up and down in the rotation end of two bent axles rotational pin all make synchronous left-hand revolution around the revolute pair center of oneself; This just makes the blade of presenting down the vertical level layout make plane motion; When moment of face drove that synchronous pulley and bolster cw are done the rotation in 360 ° of one week around axial line separately up and down, two cranks up and down that then drive on it were also made 360 ° circular movement separately around its fixed end axial line, but the rotational pin up and down on the rotation end of two cranks but rotates counterclockwise 360 ° around the revolute pair center of oneself; So just drive blade under the state perpendicular to horizontal surface all the time, make plane motion around the mid point O point of synchronous pulley axial line line up and down.If it is identical or slightly exceed on any water surface and work to place two synchronous pulley axial lines up and down to connect mid point O point this covering device; Two blades that then are positioned at both sides before and after the casing just can be done the motion of vertically striking with rising one after another under horizontal surface, just can be all the time advance with the state promotion boats and ships of peak efficiency.The half cycle time is in air, to work though every blade has come out from water, generation what be that resistance does is negative work.But the density of air only is one of six percentages of water tightness, and its loss is negligiblely little.If liken whole box body to people's trunk, the double crank of both sides, front and back and blade liken people's both arms and palm to, so produce the propelling that is similar to human " freestyle swimming " mode during this device busy.

Because this device has on half will emerge; Have only half in water, to work; So its draft is more shallow; Because the blade of this device is the work of striking of making plumbness on the upper strata of the water surface all the time, can all backward, corrupt and reactionary things at the bottom not be brought up and cause marine pollution again, adopt this propelling unit thus not only efficient is high, energy savings but also neat and tidy that can also the protection ring border.

Description of drawings

Fig. 1 is the scheme drawing of the utility model front view

Fig. 2 is the scheme drawing of the utility model left view

The specific embodiment

As Fig. 1, the utility model marine propulsion shown in Figure 2 be by static housing (1) go up synchronous pulley (2) down synchronous pulley (3) synchronously band (4) tension wheel (5), go up synchronous pulley bolster (6), synchronous pulley bolster (7), four cranks (8), two blades (9) and input sprocket (10) constitute down.The upper end of static housing (1) is provided with two to four internal thread holes, can make a whole set of propelling unit be fixed on afterbody or the ship side both sides (adopting the propelling units of two cover the utility model) of the boats and ships of required promotion but must make the driving surface A-A of this device place horizontal surface concordant or on.Sprocket wheel outside the moment of face drive case (10) is when clockwise rotating; Then driving last synchronous pulley (2) and the exterior crank of casing (1) (8) in the casing (1) simultaneously all centers on the central axis that is fixed on synchronous pulley bolster (6) and does synchronous clockwise rotation; Be with under the drive of (4) synchronously simultaneously; The central axis of synchronous pulley bolster (7) was also done synchronous clockwise rotation under following synchronous pulley (3), following synchronous pulley bolster (7) and the crank fixed end on it also centered on; And the crank in the outer one group of double-crank mechanism of homonymy of casing rotates two rotational pins in the end, does the anticlockwise direction rotation synchronously under the tightening screw in blade (9) and fixing groove thereof is fixing.So just cause former and later two blades (9) that are provided with perpendicular to horizontal surface under a pair of double crank effect before and after the casing (1); All the time put the O point among the line of synchronous pulley central axis about centering on perpendicular to horizontal surface and do the circumferential plane motion; Because the blade of both sides is the layout of 180 ° of phase differences before and after the casing (1); When making right-hand revolution, just make these two blades (9) advance boats and ships to march forward continuously at continuous drive sprocket wheel (10) at the water surface with rising one after another up and down.If anticlockwise direction drives input sprocket (10) rotation; The blade of the utility model marine propulsion will promote boats and ships and retreat; And in whole work done processes of every blade (9) from the entry to the water outlet; Also remain the mode of blade (9), so can produce maximum efficient horizontal by vertical work.Because the propelling unit of the utility model is formed with synchronous pulley transmission+double-crank mechanism; And strap drive is not need oil lubricating synchronously; The revolute pair of double-crank mechanism and adopt graphite oilless sintered-metal bearing or nylined bearing up and down between the revolute pair between the synchronous pulley bolster axle journal; Need not add lubricating oil during work, so can not pollute to the water surface yet.Again because half of this propelling unit is to be immersed in the water, so can play the effect of cooling to static housing and inner spare and accessory parts.

The appearance of the marine propulsion that the utility model is made up of synchronous pulley mechanism+double-crank mechanism can not only improve the efficient of propulsion of ship widely, make boats and ships high-speed smooth can also energy savings consumption when going.Particularly solved the boats and ships difficult problem that the dry season also can normally navigate by water on cruiseway.The blade of this propelling unit that especially valuable is only only in the work of the upper strata of the water surface, can not cause on the dirt of river bed generally when work, therefore can keep the neat and tidy of river surface after the shipping agency.

The utility model that can rant out the utility model marine propeller not is to a paddlewheel propulsion device commonly used at present and a challenge of propeller, promotes, uses and will produce important and far-reaching realistic meaning for the high speed of China and World Ship if can develop to transform.

Claims

1. marine propulsion is characterized in that by casing, band, synchronous pulley and bolster thereof, four cranks, tension wheel of two blades and drive sprockets are formed synchronously; In the casing is sealed hollow; Its top has 2-4 internal thread hole to be used for fixing afterbody or both sides at boats and ships; Its inside arranges that up and down the identical synchronous pulley of a pair of number of teeth constitutes one group of hand of rotation unanimity and the synchronous transmission device of operating speed by a synchronous band with them; Each is fixing a bolster at the endoporus of synchronous pulley; Between the axle journal part at these bolster two ends and the tank wall of the forward and backward side of casing is normal-running fit, and is provided with sealing arrangement, and all stretch outside the casing tank wall at the two ends of bolster; External part of the upper and lower bolster in both sides is respectively captiveed joint with the fixed end of a crank before and after it; Upper and lower two cranks of its homonymy are in the same way to be arranged, but its phase place of two set of bell cranks of both sides, front and back just in time differs 180 °, and two blades are separately fixed in the rotational pin of the rotation end of upper and lower two cranks in both sides, front and back outside the casing; Tension wheel is at box house up and down between two synchronous pulleys synchronously on the slack list with a side; Be used to regulate the elasticity of synchronous band when work, at the upper support axle crank fixed end of casing front side and the axle journal sponson between the tank wall sprocket wheel that is connected simultaneously, being used for outside, moment loading drives whole propelling unit normal operation down.

2. it is characterized in that according to claims 1 described marine propulsion: two groups of double-crank mechanisms in front and back of forming the casing outside; The length of its every crank must be identical with shape, and each constitutes revolute pair with a rotational pin on the rotation end of every crank, and an outside side of its rotational pin all has groove; Its width is greater than the thickness of blade; Arrange the internal thread hole of a break-through in the direction vertical, be used for passing the through hole on the blade under the effect of each comfortable screw that the rotational pin on the rotation end of every pair of crank of casing homonymy can be fixed a slice blade with groove; And the clearance length of every crank must be less than the distance between the synchronous pulley central axis up and down.

3. it is characterized in that according to claims 1 described marine propulsion: blade is the oblong thin slice of fillet around being; Its thickness must rotate the width of groove on the end bearing pin less than crank; It cooperates with crank rotational pin groove on the relevant position of a side and has the circular hole of two diameters greater than the tightening screw diameter; And the width between centers between this two hole must strictness equals up and down the distance between two synchronous pulley central axis; Two cranks and two cranks rotated the rotational pin on the end and are fixed on a slice blade in the rotational pin groove, two groups of complete double-crank mechanisms before and after under the connection of tightening screw, constituting about both sides all had outside casing like this.