Bulk cargo ship auxiliary propelling mechanism

Abstract

The utility model discloses an auxiliary propelling mechanism of a bulk cargo ship, which comprises a frame body, a water propelling mechanism arranged at the middle position of the lower end of the frame body, paddle propelling mechanisms arranged on two sides below the frame body, and a transmission cavity arranged inside the frame body, adjusting rods are rotatably arranged on two sides inside the transmission cavity, and the adjusting rods are connected with the water propelling mechanism and the paddle propelling mechanisms. One end of each adjusting rod penetrates through and extends to the outside of the transmission cavity, the adjusting rods are fixedly connected with the paddle propelling mechanism, first rotating rods are rotationally arranged on the two sides of the rear side in the transmission cavity, and a transmission worm wheel is arranged on the outer wall of the end, located in the transmission cavity, of each adjusting rod. According to the auxiliary propelling mechanism of the bulk cargo ship, angle adjustment of the paddle propelling mechanism can be rapidly achieved, meanwhile, abrasion and blockage of impurities to internal parts of the water propelling mechanism are reduced, the problem that a fan-shaped filter screen is blocked due to impurity accumulation is solved, and continuous and efficient operation of the water propelling mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ship auxiliary propulsion mechanisms, in particular to an auxiliary propulsion mechanism for a bulk carrier. Background Art

[0002] Bulk carriers, short for bulk cargo ships, are one of the main types of ships in ship transportation. Bulk carriers are ships designed specifically for transporting bulk cargoes, such as coal, ore, grain and other bulk cargoes. They are characterized by having large-opening cargo holds, which facilitate the use of loading and unloading equipment such as grabs or grain suckers for efficient operations. Bulk carriers are usually designed as single-deck, stern-engine types with a wider hull to accommodate the loading needs of large quantities of cargo. This design not only improves loading efficiency, but also ensures the safety and stability of cargo transportation. With the development of the shipping industry, bulk carriers have become an important means of transportation connecting all parts of the world, providing indispensable support for global economic activities. Auxiliary propulsion devices can provide additional thrust or steering force on the basis of the main propulsion system, ensuring that ships can navigate safely and efficiently in various complex environments and conditions.

[0003] The existing Chinese patent with announcement number CN215043597U discloses an auxiliary propulsion device for ships with a protective function, including a frame and a duct, a connecting plate fixed to the bottom of the frame, and a fixing piece installed above the connecting plate, a support rod installed below the fixing piece, and a connecting shell installed at the bottom of the support rod, a rotating shaft is provided in the middle position of the connecting shell, and a blade is fixed to the outside of the rotating shaft, a fixing plate is installed on the outside of the frame, and a connecting column is installed below the fixing plate, and a fixing ring is provided on the outside of the connecting column.

[0004] Although the above scheme is convenient for the later replacement and maintenance of the device, the installation angle of the blades on both sides of the auxiliary propulsion device is inconvenient to adjust, and it requires relatively cumbersome steps to operate to adjust it, which affects its use. At the same time, the water inlet lacks an interception and cleaning device, which makes it easy for impurities to enter the water and cause propulsion. Therefore, it does not meet the existing needs. In this regard, we propose an auxiliary propulsion mechanism for bulk carriers. Utility Model Content

[0005] The purpose of the utility model is to provide an auxiliary propulsion mechanism for bulk carriers to solve the problems raised in the above background technology that the auxiliary propulsion mechanism blade installation angle is inconvenient to adjust and the water inlet of the water propulsion device lacks an interception and cleaning setting that affects the propulsion effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an auxiliary propulsion mechanism for a bulk carrier, comprising a frame, a water propulsion mechanism installed at the middle position of the lower end of the frame, and blade propulsion mechanisms installed on both sides below the frame;

[0007] The transmission chamber is provided inside the frame, and adjustment rods are rotatably provided on both sides of the transmission chamber, one end of each adjustment rod passes through and extends to the outside of the transmission chamber, and each adjustment rod is fixedly connected to the blade propulsion mechanism. First rotating rods are rotatably provided on both sides of the rear side of the transmission chamber, and a transmission worm gear is provided on the outer wall of one end of the adjustment rod located inside the transmission chamber;

[0008] It also includes an intercepting cylinder, which is arranged at the lower end of the water propulsion mechanism. A filter plate is welded inside the intercepting cylinder. Four fan-shaped filters are equidistantly distributed in a ring shape inside the filter plate. A rotating shaft is arranged inside the filter plate.

[0009] Preferably, a transmission worm is provided on one side of the transmission worm wheel, and a worm transmission is performed between the transmission worm and the transmission worm wheel.

[0010] Preferably, the rear end of the transmission worm and the outer wall of the first rotating rod are both provided with first bevel gears, and the first bevel gears are meshedly connected with each other.

[0011] Preferably, a motor is installed at the middle position of the rear side of the transmission cavity, and a second rotating rod is provided at the output end of the motor through a coupling. A second bevel gear is provided on the outer wall of the second rotating rod and one end of the first rotating rod, and the second bevel gears are meshed and connected.

[0012] Preferably, a second bearing is provided on the outer wall of the rotating shaft, the inner wall of the second bearing is fixedly connected to the outer wall of the rotating shaft, and the outer walls of the second bearing are fixedly connected to the inner wall of the filter plate.

[0013] Preferably, a guide cone is installed at the lower end of the rotating shaft, connecting blocks are welded on the lower sides of both sides of the rotating shaft, cleaning brushes are installed on the upper ends of the connecting blocks, and four blades equidistantly distributed in a ring shape are installed on the upper side of the outer wall of the rotating shaft.

[0014] Preferably, the outer wall of each of the first rotating rods is provided with two first bearings, the inner walls of each of the first bearings are fixedly connected to the outer wall of the first rotating rod, and the outer walls of each of the first bearings are fixedly connected to the inner wall of the transmission cavity.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model opens a transmission cavity inside the frame. When the angles of the blade propulsion mechanisms on both sides need to be adjusted, the operator can start the motor. The motor will rotate the second rotating rod through the meshing connection of the second bevel gear. The transmission worm can be rotated under the meshing transmission of the first bevel gear. Finally, the rotation of the adjusting rod is realized under the worm transmission of the transmission worm and the transmission worm wheel. When the adjusting rod rotates, the angle of the blade propulsion mechanism can be driven to change, thereby realizing the angle adjustment of the blade propulsion mechanism. At the same time, the worm transmission has self-locking properties, which ensures that the angle of the blade propulsion mechanism is not easily changed after adjustment, thereby ensuring stability.

[0017] The utility model installs an intercepting cylinder at the lower end of the water propulsion mechanism. When the water propulsion mechanism draws water from the water inlet at the lower end, the flowing water passes through the fan-shaped filter screen inside the intercepting cylinder, so that impurities in the water flow are filtered out by the fan-shaped filter screen. By filtering out impurities in the water flow, such as mud, aquatic plants, plankton, etc., the wear and blockage of the internal components of the water propulsion mechanism caused by these impurities is reduced, thereby significantly improving the operating efficiency and reliability of the equipment, extending the overall service life, and ensuring the water propulsion effect.

[0018] The utility model provides a second bearing at the middle position of the filter plate, and a rotating shaft is provided inside the second bearing. When water flows in, it passes through the guide cone at the lower end of the rotating shaft and passes through the fan-shaped filter screen. Then the flowing water passes through the blades to rotate the blades. The rotation of the blades will drive the connecting block hand cleaning brush to rotate synchronously. The rotation of the cleaning brush realizes the cleaning of the fan-shaped filter screen, so that there is no need to frequently clean the fan-shaped filter screen, which reduces the burden of manual maintenance, avoids the problem of clogging of the fan-shaped filter screen due to accumulation of impurities, and ensures the continuous and efficient operation of the water propulsion mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a top view schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a front view schematic diagram of the internal structure of the interception tube of the present utility model;

[0022] Figure 4 This is a schematic top view of the filter plate structure of the present invention;

[0023] In the figure: 1. frame; 2. blade propulsion mechanism; 3. water propulsion mechanism; 4. transmission chamber; 5. adjusting rod; 6. transmission worm gear; 7. transmission worm; 8. first bevel gear; 9. first rotating rod; 10. first bearing; 11. second bevel gear; 12. motor; 13. second rotating rod; 14. intercepting cylinder; 15. filter plate; 16. fan-shaped filter; 17. second bearing; 18. rotating shaft; 19. guide cone; 20. blade; 21. connecting block; 22. cleaning brush. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model provides a technical solution: an auxiliary propulsion mechanism for a bulk carrier, comprising a frame 1, a water propulsion mechanism 3 is installed at the middle position of the lower end of the frame 1, and blade propulsion mechanisms 2 are installed on both sides below the frame 1;

[0026] It also includes a transmission cavity 4, which is opened inside the frame 1. Adjustment rods 5 are rotatably provided on both sides of the transmission cavity 4. One end of the adjustment rods 5 passes through and extends to the outside of the transmission cavity 4. The adjustment rods 5 are fixedly connected to the blade propulsion mechanism 2. First rotating rods 9 are rotatably provided on both sides of the rear side of the transmission cavity 4. A transmission worm gear 6 is provided on the outer wall of one end of the adjustment rod 5 inside the transmission cavity 4.

[0027] It also includes an intercepting cylinder 14, which is arranged at the lower end of the water propulsion mechanism 3. A filter plate 15 is welded inside the intercepting cylinder 14. Four fan-shaped filters 16 are equidistantly distributed in a ring shape inside the filter plate 15. A rotating shaft 18 is provided inside the filter plate 15.

[0028] When in use, the frame 1 is fixed to the bottom of the bulk carrier, and the blade propulsion mechanism 2 and the water propulsion mechanism 3 work together to drive the bulk carrier. The motor 12 drives the second rotating rod 13 to rotate, which is meshed with the second bevel gear 11 and transmitted to the first rotating rod 9, and then linked with the transmission worm 7 through the first bevel gear 8, and finally rotates the adjusting rod 5 through the transmission worm gear 6 to flexibly adjust the angle of the blade propulsion mechanism 2. The intercepting cylinder 14 of the water propulsion mechanism 3 has a built-in fan-shaped filter screen 16 to effectively filter impurities, and the guide cone 19 optimizes the water flow. The water flow drives the blades 20 to rotate, and the rotating shaft 18 drives the connecting block 21 and the cleaning brush 22 to rotate synchronously, tightly fitting the surface of the fan-shaped filter screen 16, automatically removing attached impurities, realizing real-time self-cleaning function, and reducing the need for manual maintenance.

[0029] See also Figure 2 A transmission worm 7 is provided on one side of the transmission worm wheel 6, and a worm transmission is performed between the transmission worm 7 and the transmission worm wheel 6. The worm transmission has a self-locking characteristic, that is, when the transmission worm 7 stops rotating, the transmission worm wheel 6 cannot rotate in the opposite direction by itself, which helps to ensure the stability and reliability of the transmission system;

[0030] See also Figure 2 The rear end of the transmission worm 7 and the outer wall of the first rotating rod 9 are both provided with a first bevel gear 8, and the first bevel gears 8 are meshed and connected. The meshing transmission of the first bevel gear 8 realizes the power conversion and transmission between the transmission worm 7 and the first rotating rod 9;

[0031] See also Figure 2 , a motor 12 is installed at the middle position of the rear side of the transmission cavity 4, and the output end of the motor 12 is provided with a second rotating rod 13 through a coupling, and the outer wall of the second rotating rod 13 and one end of the first rotating rod 9 are provided with a second bevel gear 11, and the second bevel gears 11 are meshed and connected. The motor 12 serves as a power source and transmits power to the second bevel gear 11 through the coupling and the second rotating rod 13, thereby driving the first rotating rod 9 and the entire transmission system to work. This design simplifies the power transmission path, improves the energy conversion efficiency, and enhances the stability and reliability of the transmission through the meshing of the second bevel gear 11;

[0032] See also Figure 3 and Figure 4 The outer wall of the rotating shaft 18 is provided with a second bearing 17, the inner wall of the second bearing 17 is fixedly connected to the outer wall of the rotating shaft 18, and the outer wall of the second bearing 17 is fixedly connected to the inner wall of the filter plate 15. The second bearing 17 provides a stable support and rotating platform for the rotating shaft 18, reduces the friction and resistance of the rotating shaft 18 during the rotation process, and ensures the smooth operation of the rotating shaft 18 and the cleaning brush 22;

[0033] See also Figure 3 , a guide cone 19 is installed at the lower end of the rotating shaft 18, and connecting blocks 21 are welded on the lower sides of both sides of the rotating shaft 18. A cleaning brush 22 is installed on the upper end of the connecting block 21. Four blades 20 with equal distances in a ring are installed on the upper side of the outer wall of the rotating shaft 18. The guide cone 19 can guide the water flow to pass through the sector filter 16 evenly to improve the filtration efficiency. The blades 20 use the kinetic energy of the water flow to drive the rotating shaft 18 to rotate, thereby driving the cleaning brush 22 to automatically clean the surface of the sector filter 16, realizing an automatic cleaning function without manual intervention. The connecting block 21 firmly fixes the cleaning brush 22 on the rotating shaft 18, ensuring the cleaning effect while enhancing the stability of the structure;

[0034] See also Figure 2Two first bearings 10 are provided on the outer wall of the first rotating rod 9, the inner walls of the first bearings 10 are fixedly connected to the outer wall of the first rotating rod 9, and the outer walls of the first bearings 10 are fixedly connected to the inner wall of the transmission cavity 4. The first bearings 10 provide support and positioning for the first rotating rod 9, reducing the friction and vibration of the first rotating rod 9 during the rotation process, and ensuring the smoothness and accuracy of the transmission.

[0035] Working principle: When in use, the frame 1 is installed on the bottom of the bulk carrier, and the propulsion of the bulk carrier is achieved through the blade propulsion mechanism 2 and the water propulsion mechanism 3 (the blade propulsion mechanism 2 and the water propulsion mechanism 3 have been disclosed in CN215043597U). The operator starts the motor 12, and the motor 12 rotates the second rotating rod 13 under the transmission of the coupling. The second rotating rod 13 will drive one of the second bevel gears 11 to rotate. Under the meshing transmission between the second bevel gears 11, the other two second bevel gears 11 can drive the first rotating rod 9 to rotate synchronously. The setting of the first bearing 10 ensures the smooth rotation of the first rotating rod 9, and the first rotating rod 9 will drive one of the first bevel gears 8 to rotate. Under the meshing transmission of the first bevel gear 8, the transmission worm 7 can be rotated synchronously. Due to the worm transmission between the transmission worm 7 and the transmission worm wheel 6, the transmission worm wheel 6 will be driven to rotate synchronously. When the transmission worm wheel 6 rotates, the adjusting rod 5 will be driven to rotate, and the adjusting rod 5 will drive The blade propulsion mechanism 2 rotates synchronously, thereby realizing the angle adjustment of the blade propulsion mechanism 2, which is simple and convenient to operate. When the water propulsion mechanism 3 sucks water flow from the water inlet at the lower end for propulsion, the water flow will first enter the interior of the intercepting cylinder 14 and be filtered by the fan-shaped filter screen 16 in the intercepting cylinder 14, thereby avoiding the wear and blockage of the internal components of the water propulsion mechanism 3 by impurities in the water flow. The design of the guide cone 19 effectively guides the water flow to pass through the fan-shaped filter screen 16 evenly and efficiently. The flow of water drives the rotation of the blades 20, and the kinetic energy of the water flow is converted into rotational mechanical energy. As the blades 20 rotate, the rotating shaft 18 also rotates, thereby driving the connecting block 21 connected to the rotating shaft 18 to rotate, so that the cleaning brush 22 rotates synchronously. The cleaning brush 22 fits tightly to the surface of the fan-shaped filter screen 16, and its rotating motion can effectively scrape or brush off impurities and dirt attached to the fan-shaped filter screen 16, realizing real-time automatic cleaning of the fan-shaped filter screen 16 and reducing the burden of manual maintenance.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An auxiliary propulsion mechanism for a bulk carrier, comprising a frame (1), a water propulsion mechanism (3) being installed at the middle position of the lower end of the frame (1), and blade propulsion mechanisms (2) being installed on both sides below the frame (1), characterized in that: It also includes a transmission cavity (4) which is opened inside the frame (1), and adjustment rods (5) are rotatably arranged on both sides inside the transmission cavity (4), one end of each adjustment rod (5) penetrates and extends to the outside of the transmission cavity (4), and each adjustment rod (5) is fixedly connected to the blade propulsion mechanism (2), first rotating rods (9) are rotatably arranged on both sides of the rear side inside the transmission cavity (4), and a transmission worm gear (6) is arranged on the outer wall of one end of the adjustment rod (5) inside the transmission cavity (4); It also comprises an interception cylinder (14) which is arranged at the lower end of the water propulsion mechanism (3), a filter plate (15) is welded inside the interception cylinder (14), four sector-shaped filter screens (16) are arranged inside the filter plate (15) and are distributed in an annular shape at equal intervals, and a rotating shaft (18) is arranged inside the filter plate (15).

2. The auxiliary propulsion mechanism for a bulk carrier according to claim 1, characterized in that: A transmission worm (7) is provided on one side of the transmission worm wheel (6), and a worm transmission is performed between the transmission worm (7) and the transmission worm wheel (6).

3. The auxiliary propulsion mechanism for a bulk carrier according to claim 2, characterized in that: The rear end of the transmission worm (7) and the outer wall of the first rotating rod (9) are both provided with first bevel gears (8), and the first bevel gears (8) are meshingly connected.

4. The auxiliary propulsion mechanism for a bulk carrier according to claim 3, characterized in that: A motor (12) is installed at a middle position on the rear side of the transmission cavity (4); a second rotating rod (13) is provided at the output end of the motor (12) via a coupling; a second bevel gear (11) is provided on the outer wall of the second rotating rod (13) and one end of the first rotating rod (9); and the second bevel gears (11) are meshingly connected.

5. The auxiliary propulsion mechanism for a bulk carrier according to claim 1, characterized in that: The outer wall of the rotating shaft (18) is provided with a second bearing (17), the inner wall of the second bearing (17) is fixedly connected to the outer wall of the rotating shaft (18), and the outer wall of the second bearing (17) is fixedly connected to the inner wall of the filter plate (15).

6. The auxiliary propulsion mechanism for a bulk carrier according to claim 1, characterized in that: A guide cone (19) is mounted at the lower end of the rotating shaft (18), connecting blocks (21) are welded to the lower sides of both sides of the rotating shaft (18), cleaning brushes (22) are mounted on the upper ends of the connecting blocks (21), and four blades (20) equidistantly distributed in an annular shape are mounted on the upper side of the outer wall of the rotating shaft (18).

7. The auxiliary propulsion mechanism for a bulk carrier according to claim 1, characterized in that: The outer wall of the first rotating rod (9) is provided with two first bearings (10), the inner walls of the first bearings (10) are fixedly connected to the outer wall of the first rotating rod (9), and the outer walls of the first bearings (10) are fixedly connected to the inner wall of the transmission chamber (4).

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