CN205440822U - By small rail car driven annular flat plate blade marine propulsor - Google Patents

Abstract

The utility model provides a by small rail car driven annular flat plate blade marine propulsor, belongs to boats and ships technical field, including track, dolly, annular flat plate blade, traction lever, locating lever and shell. The shell includes left side board, bottom plate, right side board and roof. The locating lever is vertical to be arranged and is close to left side board department in the middle part and the fixed mounting of the fore -and -aft direction of shell on the bottom plate of shell. Annular flat plate blade suit is on the locating lever, and the annular flat plate blade is perpendicular with the bottom plate of shell. The track is closed semi -circle, and track horizontal installation is below the roof, and the dolly is installed on the track, and orbital motion can be followed to the dolly under the drive of power. Install on the dolly upper end of traction lever, and the traction lever is vertical to be arranged, the hypomere of traction lever inserts in the annular flat plate blade. Dolly drive traction lever drives annular flat plate shape blade and do the half cycle motion in the shell, can produce " anxious opening " and " sumo " motion effect and the mirror effect of similar insect, produce very big thrust, and efficiency is higher.

Description

An annular flat-blade ship propeller driven by a rail trolley

technical field

The utility model relates to an annular flat blade ship propeller driven by a track trolley, which belongs to the technical field of ships, and in particular relates to a ship propeller.

Background technique

Most traditional ship propellers use propellers. Although they are easy to drive, their efficiency is low. The manufacturing process of the blades is complicated, and wakes will be generated when they are used. After the water enters and before the water exits, the water resistance is large and the thrust generated is very small, the energy loss is large, the efficiency is low, and the noise is large. Authorized notification number is the patent of CN100360378C, discloses a kind of bionic flat ship propeller, although efficiency is higher, structure is more complicated.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned deficiencies of the traditional ship propulsion technology, and to invent a high-efficiency annular flat-blade ship propeller driven by a track trolley.

The utility model relates to an annular flat blade ship propeller driven by a track trolley, which comprises a rail, a trolley, an annular flat blade, a draw bar, a positioning bar and a casing. The annular flat plate blade comprises identical arc-shaped bodies at both ends and two identical flat plates in the middle section. The casing includes a left side board, a bottom board, a right side board and a top board, the left side board and the right side board are vertically arranged, and the bottom board and the top board are arranged horizontally. The positioning rod is located in the middle of the front and rear direction of the casing and is fixedly installed on the bottom plate of the casing near the left side plate. The positioning rod is arranged vertically. The gap between the positioning rod and the left side plate can ensure the flexible operation of the annular flat blade in the casing. semi-circular motion. The annular flat blade is set on the positioning rod and is located inside the casing, and the annular flat blade is perpendicular to the bottom plate of the casing. The track is a closed semicircle, and the track is installed horizontally under the top plate. The trolley is installed on the track, and the trolley can move along the track under the drive of power. The upper end of the drawbar is installed on the trolley, the drawbar is vertically arranged, and the lower section of the drawbar is inserted into the annular flat blade.

A kind of annular flat-blade ship propeller of the utility model driven by a track trolley produces beneficial effects in this way: at first, the annular flat-blade is in the longitudinal most forward position, that is, the inner wall of the rear end of the annular flat-blade is close to the trailing edge of the positioning rod, and the annular flat-blade The front end of the flat blade is at the front end, the left side of the annular flat blade is close to the right side of the left side plate of the shell, and the power drives the trolley to start moving. Looking down at the propeller of the present invention from top to bottom, the trolley drives the drawbar to move, because The drawbar is inserted into the annular flat blade, limited by the track and the annular flat blade, the trolley drives the drawbar to make a semi-circular motion, and at the same time drives the annular flat blade to make a semi-circular motion in the shell, that is, the annular flat blade is positioned around the frontmost position in the longitudinal direction. After the rod rotates half a circle clockwise, it reaches the final position in the longitudinal direction, and then moves straight forward to the front position in the longitudinal direction. Then, the annular flat plate blade rotates clockwise for half a circle around the positioning rod, and then moves forward in a straight line to the front position in the longitudinal direction, that is, it returns to the initial position. Next, the above process is repeated periodically. In this way, the annular flat plate blades will continuously introduce the water in the front into the casing and then push it to the rear to generate forward thrust. During the movement, the ring-shaped flat blades quickly open between the front and the left side panel of the shell and quickly close between the rear and the left side panel, producing the "jittery" and "sumo" movement effects similar to insects, and Due to the shackles of the shell, the movement of the annular flat blades in the shell also produces a mirror effect, which can generate a large thrust. The propeller of the utility model includes but is not limited to the following advantages: small energy loss, high efficiency, and easy manufacture of blades, which does not produce obvious wakes like propeller propellers, and does not have serious flapping like traditional paddle wheel propellers. water phenomenon.

In order to prevent sundries such as fish and aquatic plants from entering the housing, filter screens are installed at the front and rear of the housing.

In order to make the efficiency of the propeller of the utility model higher, the ratio of the aspect ratio of the annular flat blade is between 1 and 4.

In order to reduce the friction between the bottom of the annular flat blade and the upper surface of the bottom plate of the casing when the annular flat blade moves in the casing, the bottom of the annular flat blade is inlaid with anti-friction balls, or a wear-resistant flat gasket is placed on the positioning rod , the wear-resistant flat gasket is located on the upper surface of the bottom plate of the shell and pads on the bottom of the annular flat blade; the density of the annular flat blade is less than 1800kg/m ³ .

In order to make the efficiency of the propeller of the utility model higher, reduce the thickness-to-width ratio of the annular flat blade as far as possible, the outer diameters of the draw bar and the positioning rod are the same, and the outer diameter of the positioning rod is slightly smaller than the gap between the two flat plates of the annular flat blade ; The height of the positioning rod is slightly less than half of the height of the annular flat blade, and the lower end of the drawing rod is close to the upper end of the positioning rod.

In order to reduce the friction between the drawing rod and the positioning rod and the inner surface of the annular flat blade, the surroundings of the drawing rod and the positioning rod are inlaid with anti-friction balls or needles, or the surroundings of the drawing rod and the positioning rod are set with rollers or bearings.

In order to reduce the friction between the outer surface of the annular flat blade and the right side of the left side plate of the housing, the right side of the left side plate is inlaid with anti-friction balls or needles.

In order to achieve high efficiency and energy saving, the propeller of the utility model has a compact structure, so that the width of the annular flat blade is slightly smaller than the distance between the right side of the left side plate of the housing and the left side of the right side plate.

The trolley adopts an electric trolley, and the trolley and the track are connected by rolling wheels or teeth. When the trolley and the track are connected by teeth, the track has teeth, and the trolley is equipped with gears that mesh with the teeth of the track.

Description of drawings

Fig. 1 is a rear view schematic diagram of an annular flat-blade ship propeller driven by a track trolley of the utility model; Fig. 2 is a top view schematic diagram of Fig. 1; Fig. 3 is a motion of the annular flat-blade propeller of the utility model propeller in the shell Schematic diagram.

In the figure, 1-track; 2-trolley; 3-annular flat blade, 31-indicates that the annular flat blade is in the frontmost position in the longitudinal direction, 32-indicates that the annular flat blade is in the transverse position, 33-indicates that the annular flat blade is in the longitudinal final position, 34 - the direction of rotation of the annular flat blade; 35- the forward direction of the annular flat blade; 4- draw bar; 5- positioning rod, 51- wear-resistant flat gasket; Bottom plate, 63-right side plate, 64-top plate; 7-filter screen; 8-the advance direction indication of propeller of the present utility model.

detailed description

The utility model is now described in conjunction with the accompanying drawings: a ship propeller with annular flat blades driven by a track trolley, comprising a track 1, a trolley 2, an annular flat blade 3, a draw bar 4, a positioning bar 5 and a casing 6. The annular flat plate blade 3 comprises identical arc-shaped bodies at both ends and two identical flat plates in the middle section. The aspect ratio of the annular flat blade 3 is 1.3:1. The casing 6 includes a left side plate 61, a bottom plate 62, a right side plate 63 and a top plate 64, the left side plate 61 and the right side plate 63 are arranged vertically, and the bottom plate 62 and the top plate 64 are arranged horizontally. Positioning rod 4 is in the middle part of the front and rear direction of housing 6 and is fixedly installed on the bottom plate 62 of housing 6 near the left side plate 61. Positioning rod 4 is vertically arranged, and the gap between positioning rod 4 and left side plate 61 can ensure the annular The flat blade 3 flexibly moves in a semicircle around the positioning rod 5 in the casing 6 . The annular flat blade 3 is sleeved on the positioning rod 5 and located inside the casing 6 , and the annular flat blade 3 is perpendicular to the bottom plate 62 of the casing 6 . The outer diameter of draw bar 4 and positioning bar 5 is identical, and the outer diameter of positioning bar 5 is slightly less than the gap between two flat plates of annular flat blade; The lower end of 4 is close to the upper end of positioning rod 5. The track 1 is a closed semicircle, and the track 1 is horizontally installed under the top plate 64. The dolly 2 is installed on the track 1, and the dolly 2 can move along the track 1 under the drive of power. The trolley 2 is an electric trolley, the trolley 2 and the track 1 are connected by teeth, the track 1 has teeth, and the gears of the trolley 2 mesh with the teeth of the track 1. The upper end of the drawbar 4 is fixedly installed on the dolly 2, the drawbar 4 is arranged vertically, and the lower section of the drawbar 4 is inserted into the annular flat plate blade 3.

The propeller of the utility model works like this: at first, the annular flat blade 3 is in the longitudinal frontmost position, that is, the rear end inner wall of the annular flat blade 3 is close to the trailing edge of the positioning rod 5, the front end of the annular flat blade 3 is at the front end, and the annular flat blade 3 is at the front end. The left side of the flat blade 3 is close to the right side of the left side plate 61 of the casing 6, and the power-driven trolley 2 starts to move. Looking down at the propeller of the present invention from top to bottom, the trolley 2 drives the drawbar 4 to move, because the drawbar 4 Inserted in the annular flat blade 3, limited by the track 1 and the annular flat blade 3, the trolley 2 drives the drawbar 4 to make a semicircular motion, and at the same time drives the annular flat blade 3 to make a semicircular motion in the shell 6, that is, the annular flat blade 3 Rotate half a circle clockwise around the positioning rod 5 at the longitudinal front position to reach the longitudinal final position, then move straight forward to the longitudinal front position, then the annular flat plate blade 3 rotates clockwise around the positioning rod 5 for half a circle, and then move straight forward to the longitudinal position The most front position, that is, back to the original position. Next, the above process is repeated periodically. In this way, the annular flat plate blade 3 will continuously introduce the water in the front into the casing 6 and then push it to the rear to generate forward thrust. During the movement, the annular flat blade 3 quickly opens between the front and the left side plate 61 of the casing 6 and closes quickly between the back and the left side plate 61, resulting in "snap" and "sumo" similar to insects Motion effect, and due to the constraints of the casing 6, the movement of the annular flat blades in the casing 6 also produces a mirror effect, which can produce a large thrust. The propeller of the utility model includes but is not limited to the following advantages: small energy loss, high efficiency, and easy manufacture of blades, which does not produce obvious wakes like propeller propellers, and does not have serious flapping like traditional paddle wheel propellers. Water phenomenon; if the annular flat blade makes a half-circle motion counterclockwise, it can make the ship retreat. Two propellers of the utility model with the same structure are adopted on the same ship, which are symmetrically installed on both sides of the stern of the ship, which can save the traditional rudder, and the different operating speeds of the two propellers facilitate the turning of the ship.

For reducing the friction between the bottom of the annular flat blade 3 and the upper surface of the bottom plate 62 of the casing 6 when the annular flat blade 3 moves in the housing 6, a wear-resistant flat gasket 51 is placed on the positioning rod 5, and the wear-resistant flat gasket 51 is located on the upper surface of the bottom plate 62 of the casing 6 and rests on the bottom of the annular flat blade 3 . In order to prevent sundries such as fish and aquatic plants from entering the housing, a filter screen 7 is installed in the front and rear of the housing 6 .

If the aspect ratio of the annular flat plate blade 3 is increased, the propulsion efficiency will be higher.

Claims (9)

1. An annular flat blade ship propeller driven by a track trolley, characterized in that it includes a track (1), a trolley (2), an annular flat blade (3), a draw bar (4), a positioning bar (5) and The shell (6); the annular flat blade (3) includes the same arc-shaped body at both ends and two identical flat plates in the middle; the shell (6) includes a left side plate (61), a bottom plate (62), a right side plate (63 ) and the top plate (64), the left side plate (61) and the right side plate (63) are arranged vertically, the bottom plate (62) and the top plate (64) are arranged horizontally; the width of the annular flat blade (3) is slightly smaller than that of the shell ( 6) The distance between the right side of the left side plate (61) and the left side of the right side plate (63); the positioning rod (5) is in the middle of the front and rear direction of the casing (6) and is fixedly installed on the casing ( 6) On the bottom plate (62) close to the left side plate (61), the positioning rod (5) is vertically arranged, and the gap between the positioning rod (5) and the left side plate (61) can ensure that the annular flat blade (3) In the housing (6), it can move flexibly in a half circle; the annular flat blade (3) is set on the positioning rod (5) and is located inside the housing (6). The annular flat blade (3) and the bottom plate (62) of the housing (6) ) is vertical; the track (1) is a closed semicircle, and the track (1) is installed horizontally under the top plate (64), and the trolley (2) is installed on the track (1), driven by power, the trolley (2) can Move along the track (1); the upper end of the drawbar (4) is installed on the trolley (2), the drawbar (4) is arranged vertically, and the lower section of the drawbar (4) is inserted into the annular flat blade (3). 2. An annular flat-bladed ship propeller driven by a track trolley according to claim 1, characterized in that: the trolley (2) is an electric trolley, and the trolley (2) and the track (1) are connected by rolling wheels or gears Connection; when the trolley (2) and the track (1) are connected by teeth, the track (1) has teeth, and the trolley (2) is equipped with a gear meshed with the teeth of the track (1). 3. An annular flat-blade ship propeller driven by a rail trolley according to claim 1, characterized in that: to reduce the outer surface of the annular flat blade (3) and the left side plate (61) of the shell (6) ), the friction between the right sides of the left plate (61) is inlaid with anti-friction balls or needles. 4. According to claim 1, 2 or 3, an annular flat-blade ship propeller driven by a rail trolley, characterized in that: to reduce the relationship between the draw bar (4) and the positioning rod (5) and the annular flat blade ( 3) The friction between the inner surfaces of the traction rod (4) and the positioning rod (5) are inlaid with anti-friction balls or needles, or the surroundings of the traction rod (4) and the positioning rod (5) are set with rollers or bearings. 5. An annular flat-blade ship propeller driven by a rail trolley according to claim 1, 2 or 3, characterized in that: in order to increase the efficiency of the propeller, the thickness of the annular flat blade (3) should be reduced as much as possible Width ratio, the outer diameters of the drawbar (4) and the positioning rod (5) are the same, and the outer diameter of the positioning rod (5) is slightly smaller than the gap between the two flat plates of the annular flat blade (3); the outer diameter of the positioning rod (5) The height is slightly less than half of the height of the annular flat blade (3), and the lower end of the draw bar (4) is close to the upper end of the positioning bar (5). 6. An annular flat-blade ship propeller driven by a track trolley according to claim 1, 2 or 3, characterized in that: in order to reduce the movement of the annular flat blade (3) in the housing (6), the annular flat blade The friction between the bottom of (3) and the upper surface of the bottom plate (62) of the casing (6), the bottom of the annular flat blade (3) is inlaid with anti-friction balls, or a wear-resistant flat is set on the positioning rod (5) Gasket (51), the wear-resistant flat gasket (51) is located on the upper surface of the bottom plate (62) of the casing (6) and is placed on the bottom of the annular flat blade (3); the density of the annular flat blade (3) is less than 1800kg /m ³ . 7. An annular flat-blade ship propeller driven by a rail trolley according to claim 1, 2 or 3, characterized in that the aspect ratio of the annular flat blade (3) is between 1 and 4. 8. An annular flat-blade ship propeller driven by a rail trolley according to claim 1, 2 or 3, characterized in that: filter screens (7) are installed at the front and rear of the casing (6). 9. According to claim 1, 2 or 3, an annular flat-blade ship propeller driven by a track trolley is characterized in that: two propellers with the same structure are used on the same ship, and they are symmetrically installed at the tail of the ship Both sides, and do away with traditional rudders, use the difference in operating speed of the two propellers to steer the boat into turns.