Ship vortex elimination fin type paddle based on energy-saving flow guiding device

Abstract

The utility model provides a ship vortex elimination fin type paddle based on an energy-saving flow guiding device, and relates to the technical field of ship paddles, the ship vortex elimination fin type paddle comprises a propeller hub, a vortex elimination hub and a hub cap, the vortex elimination hub is in a circular truncated cone shape, and the outer diameter of the end, close to the propeller hub, of the vortex elimination hub is larger than that of the end, close to the hub cap, of the vortex elimination hub; the outer diameter of the end, close to the propeller hub, of the vortex eliminating hub is consistent with the diameter of the end, close to the vortex eliminating hub, of the propeller hub, the outer side face of the hub cap is a spherical surface, the outer diameter of the end, close to the propeller hub, of the hub cap is consistent with the outer diameter of the end, close to the hub cap, of the vortex eliminating hub, and the outer edge line of the hub cap is tangent to the outer edge line of the vortex eliminating hub. The propeller hub, the vortex eliminating hub and the hub cap are arranged, the diameter of the joint of the propeller hub and the vortex eliminating hub is consistent, water flow is smoother from the outer surface of the propeller hub to the outer surface of the vortex eliminating hub, the outer edge line of the hub cap is tangent to the outer edge line of the vortex eliminating hub, and the water flow is smoother from the outer surface of the vortex eliminating hub to the outer surface of the hub cap; and the joint of the propeller hub, the vortex eliminating hub and the hub cap is prevented from bearing larger load.

Description

Technical Field

[0001] This utility model relates to the field of ship propeller technology, and in particular to a ship anti-vortex fin propeller based on an energy-saving flow guiding device. Background Technology

[0002] Hub fins, also known as propeller hub cap fins, are propeller energy-saving devices formed by installing several appropriate blades on the surface of a regular propeller hub cap. On one hand, they absorb the rotational energy of the propeller wake, generating positive torque; on the other hand, they eliminate or reduce hub vortices, acting as a straightener, thereby reducing hub vortex drag and improving propeller efficiency.

[0003] Announcement No. CN217754065U discloses a novel marine propeller cap fin. This device connects the propeller hub and cap body using hexagonal slots and hexagonal inserts, along with studs and nuts, improving the connection stability and ensuring coaxial rotation of the hub and cap body, thus enhancing vortex elimination. The device includes a power shaft, propeller hub, multiple sets of blades, cap body, multiple sets of fins, and a connecting device. The power shaft is mounted on the ship. The propeller hub and cap body are connected via the connecting device, which includes two sets of studs, hexagonal inserts, two sets of nuts, and two sets of anti-loosening washers. A hexagonal slot is provided on the left side of the propeller hub. Both the cap body and the hexagonal inserts have two sets of through holes, corresponding to the positions of the two sets of studs. The two sets of nuts are detachably threaded to the two sets of studs. The two sets of anti-loosening washers are located between the two sets of nuts and the cap body.

[0004] In the aforementioned device, the different diameters at the connection points between the rotor hub and the cap make the transition between them less smooth. The separation and vortices generated at the water flow junction cause the connection point to bear a significant load. Therefore, it is necessary to propose a ship vortex-suppressing fin-type rotor blade based on an energy-saving flow-guiding device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology, which has the problem that the end diameters of the connection between the propeller hub and the cap are different, making the transition between the propeller hub and the cap not smooth enough. The separation and vortex generated at the junction of the water flow will cause the connection between the propeller hub and the cap to bear a large load. This utility model proposes a ship vortex-eliminating fin propeller based on an energy-saving flow guiding device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a ship vortex-suppressing fin blade based on an energy-saving flow guiding device, comprising: a propeller hub, a vortex-suppressing hub, and a hub cap. The vortex-suppressing hub is disposed between the propeller hub and the hub cap. A plurality of propeller blades are uniformly and evenly fixedly installed on the outer wall of the propeller hub. A plurality of vortex-suppressing blades are uniformly and evenly fixedly installed on the outer wall of the vortex-suppressing hub. The vortex-suppressing hub is frustum-shaped. The outer diameter of the vortex-suppressing hub near the propeller hub is larger than the outer diameter near the hub cap. The outer diameter of the vortex-suppressing hub near the propeller hub is the same as the diameter of the propeller hub near the vortex-suppressing hub. The outer surface of the hub cap is spherical. The outer diameter of the hub cap near the propeller hub is the same as the outer diameter of the vortex-suppressing hub near the hub cap. The outer edge of the hub cap is tangent to the outer edge of the vortex-suppressing hub. A first connecting component is provided between the propeller hub and the vortex-suppressing hub. A second connecting component is provided between the propeller hub and the hub cap.

[0007] The connection between the propeller hub and the vortex suppressor hub has the same diameter, which makes the water flow smoother along the outer surface of the propeller hub to the outer surface of the vortex suppressor hub. The outer edge of the hub cap is tangent to the outer edge of the vortex suppressor hub, which makes the water flow smoother along the outer surface of the vortex suppressor hub to the outer surface of the hub cap, thus avoiding the large load at the connection between the propeller hub, the vortex suppressor hub and the hub cap.

[0008] Preferably, the first connecting component includes a plurality of first hexagonal pillars, which are equidistantly and uniformly fixedly installed at one end of the propeller hub near the vortex suppressor hub. The vortex suppressor hub is provided with a plurality of first hexagonal through slots at equidistant intervals at one end of the propeller hub. The plurality of first hexagonal pillars correspond one-to-one with the first hexagonal through slots, and the first hexagonal pillars are disposed in the corresponding first hexagonal through slots.

[0009] Preferably, a first threaded groove is provided in the center of a plurality of first hexagonal columns, and a plurality of first bolt holes are provided at equal intervals near the end of the anti-vortex hub near the hub cap. The plurality of first bolt holes correspond one-to-one with the first hexagonal through grooves, and the first bolt holes are interconnected with the corresponding first hexagonal through grooves. A first fastening bolt is provided in the first bolt hole, and the threaded end of the first fastening bolt is installed in the first bolt hole.

[0010] Several first hexagonal pillars are inserted into corresponding first hexagonal through slots, so that the ends of the propeller hub and the vortex-suppressing hub fit together. The first fastening bolts are placed into the first bolt holes, so that the threads of the first fastening bolts are installed into the first bolt holes, and the first hexagonal pillars are fixedly connected to the vortex-suppressing hub, thus realizing the connection between the propeller hub and the vortex-suppressing hub.

[0011] Preferably, the second connecting component includes a second hexagonal post, which is fixedly installed at the center of the propeller hub near the vortex suppressor hub. A second hexagonal through slot is provided in the center of the vortex suppressor hub, and the second hexagonal post is disposed in the inner cavity of the second hexagonal through slot. A second threaded groove is provided in the center of the second hexagonal post, and a mounting slot is provided at the end of the hub cap near the propeller hub. A mounting block is provided in the mounting slot, and a threaded rod is fixedly installed at the center of the mounting block near the vortex suppressor hub. The threaded rod is threadedly installed in the second threaded groove.

[0012] Preferably, the outer wall of the hub cap is provided with a number of second bolt holes, and a second fastening bolt is provided in the second bolt holes. The mounting block is provided with a number of threaded through holes, and the number of second bolt holes corresponds one-to-one with the threaded through holes. The anti-vortex hub is provided with a number of connecting threaded holes near the end of the hub cap, and the threaded through holes corresponds one-to-one with the connecting threaded holes. The second fastening bolts are sequentially threaded into the corresponding threaded through holes and connecting threaded holes.

[0013] Preferably, the inner wall of the mounting block fits against the side of the anti-vortex hub near the hub cap, and the second fastening bolt securely connects the anti-vortex hub, hub cap, and mounting block.

[0014] When connecting the propeller hub and the vortex suppressor hub, the second hexagonal post is inserted into the second hexagonal through slot, and the threaded rod is threaded into the second threaded slot, so that the inner wall of the mounting block fits against the side of the vortex suppressor hub near the hub cap. The mounting block is inserted into the mounting slot, so that the ends of the vortex suppressor hub and the hub cap fit together. The second fastening bolt is placed into the second bolt hole, so that the second fastening bolt is threaded into the corresponding threaded through hole and connecting threaded hole in sequence. The second fastening bolt fixes the hub cap, mounting block and vortex suppressor hub together, and together with the second hexagonal post, the propeller hub, vortex suppressor hub and hub cap are connected into a whole.

[0015] Compared with the prior art, the beneficial effects of this utility model include: by setting a propeller hub, a vortex suppressor hub, and a hub cap, the diameter of the connection between the propeller hub and the vortex suppressor hub is the same, which makes the water flow smoother along the outer surface of the propeller hub to the outer surface of the vortex suppressor hub. The outer edge line of the hub cap is tangent to the outer edge line of the vortex suppressor hub, which makes the water flow smoother along the outer surface of the vortex suppressor hub to the outer surface of the hub cap, and avoids bearing a large load at the connection between the propeller hub, the vortex suppressor hub, and the hub cap. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0017] Figure 1 The schematic diagram illustrates a three-dimensional structure of a ship vortex-suppressing finned propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 1 .

[0018] Figure 2 The schematic diagram illustrates a three-dimensional structure of a ship vortex-suppressing finned propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 2

[0019] Figure 3 The schematic diagram shows a side view of a ship vortex-suppressing fin blade based on an energy-saving flow guiding device according to one embodiment of the present invention.

[0020] Figure 4 The schematic diagram illustrates the exploded structure of the first connecting assembly of a ship vortex-suppressing finned propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 1 .

[0021] Figure 5 The schematic diagram illustrates the exploded structure of the first connecting assembly of a ship vortex-suppressing finned propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 2 .

[0022] Figure 6 The schematic diagram illustrates the exploded structure of the second connecting assembly of a ship's anti-vortex fin propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 1 .

[0023] Figure 7 The schematic diagram illustrates the exploded structure of the second connecting assembly of a ship's anti-vortex fin propeller blade based on an energy-saving flow guiding device according to one embodiment of the present invention. Figure 2 .

[0024] Labels in the diagram: 1. Propeller hub; 2. Anti-vortex hub; 3. Hub cap; 4. Propeller blade; 5. Anti-vortex blade; 6. First connecting assembly; 61. First hexagonal column; 62. First hexagonal through slot; 63. First threaded groove; 64. First bolt hole; 65. First fastening bolt; 7. Second connecting assembly; 71. Second hexagonal column; 72. Second hexagonal through slot; 73. Second threaded groove; 74. Mounting slot; 75. Mounting block; 76. Threaded rod; 77. Second bolt hole; 78. Second fastening bolt; 79. Threaded through hole; 710. Connecting threaded hole. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] According to one embodiment of the present invention, in conjunction with Figures 1 to 4 The image shows a ship vortex-suppressing fin-type propeller based on an energy-saving flow guiding device, comprising: a propeller hub 1, a vortex-suppressing hub 2, and a hub cap 3. The vortex-suppressing hub 2 is disposed between the propeller hub 1 and the hub cap 3. A plurality of propeller blades 4 are uniformly and evenly fixedly installed on the outer wall of the propeller hub 1, and a plurality of vortex-suppressing blades 5 are uniformly and evenly fixedly installed on the outer wall of the vortex-suppressing hub 2. The vortex-suppressing hub 2 is frustum-shaped. The outer diameter of the end of the vortex-suppressing hub 2 near the propeller hub 1 is larger than the outer diameter of the end near the hub cap 3, facilitating water flow. The outer diameter of the end of the vortex-suppressing hub 2 near the propeller hub 1 is the same as the diameter of the end of the propeller hub 1 near the vortex-suppressing hub 2, making the water flow smoother along the outer surface of the propeller hub 1 to the outer surface of the vortex-suppressing hub 2. The hub cap... 3. The outer surface is spherical. The outer diameter of the hub cap 3 near the end of the propeller hub 1 is the same as the outer diameter of the vortex suppressor hub 2 near the end of the hub cap 3. The outer edge of the hub cap 3 is tangent to the outer edge of the vortex suppressor hub 2. The water flow is smoother along the outer surface of the vortex suppressor hub 2 to the outer surface of the hub cap 3, avoiding a large load at the connection of the propeller hub 1, the vortex suppressor hub 2 and the hub cap 3. A first connecting component 6 is provided between the propeller hub 1 and the vortex suppressor hub 2 to fix the propeller hub 1 and the vortex suppressor hub 2. A second connecting component 7 is provided between the propeller hub 1 and the hub cap 3 to fix the propeller hub 1, the vortex suppressor hub 2 and the hub cap 3 to increase the load-bearing capacity at the connection of the propeller hub 1, the vortex suppressor hub 2 and the hub cap 3.

[0027] According to one embodiment of the present invention, in conjunction with Figures 4 to 5 As shown. The first connecting component 6 includes a plurality of first hexagonal pillars 61, which are equidistantly and uniformly fixedly installed at one end of the propeller hub 1 near the vortex suppressor hub 2. The vortex suppressor hub 2 is provided with a plurality of first hexagonal through slots 62 equidistantly and uniformly at one end near the propeller hub 1. The plurality of first hexagonal pillars 61 correspond one-to-one with the first hexagonal through slots 62, and the first hexagonal pillars 61 are disposed in the corresponding first hexagonal through slots 62.

[0028] A number of first hexagonal columns 61 have a first threaded groove 63 in the center. A number of first bolt holes 64 are evenly spaced near the end of the anti-vortex hub 2 near the hub cap 3. The number of first bolt holes 64 correspond one-to-one with the first hexagonal through grooves 62. The first bolt holes 64 and the corresponding first hexagonal through grooves 62 are interconnected. A first fastening bolt 65 is provided in the first bolt hole 64. The end of the first fastening bolt 65 is threaded into the first bolt hole 64.

[0029] In this embodiment, several first hexagonal columns 61 are inserted into corresponding first hexagonal through slots 62, so that the ends of the propeller hub 1 and the vortex-eliminating hub 2 fit together. The first fastening bolt 65 is placed in the first bolt hole 64, so that the end of the first fastening bolt 65 is threaded into the first bolt hole 64, and the first hexagonal columns 61 are fixedly connected to the vortex-eliminating hub 2, thereby realizing the connection between the propeller hub 1 and the vortex-eliminating hub 2 and increasing the load-bearing capacity at the connection between the propeller hub 1 and the vortex-eliminating hub 2.

[0030] According to one embodiment of the present invention, in conjunction with Figure 4 and Figures 6 to 7 As shown. The second connecting assembly 7 includes a second hexagonal post 71, which is fixedly installed at the center of the end of the propeller hub 1 near the vortex suppressor hub 2. The vortex suppressor hub 2 has a second hexagonal through groove 72 in the center. The second hexagonal post 71 is disposed in the inner cavity of the second hexagonal through groove 72. The second hexagonal post 71 has a second threaded groove 73 in the center. The hub cap 3 has a mounting slot 74 at the end near the propeller hub 1. A mounting block 75 is disposed in the mounting slot 74. The inner sidewall of the mounting block 75 fits against the side of the vortex suppressor hub 2 near the hub cap 3. A threaded rod 76 is fixedly installed at the center of the mounting block 75 near the vortex suppressor hub 2. The threaded rod 76 is threadedly installed in the second threaded groove 73.

[0031] The outer wall of the hub cap 3 is provided with several second bolt holes 77, and a second fastening bolt 78 is provided in the second bolt holes 77. The mounting block 75 is provided with several threaded through holes 79, and the several second bolt holes 77 correspond one-to-one with the threaded through holes 79. The anti-vortex hub 2 is provided with several connecting threaded holes 710 near the end of the hub cap 3, and the threaded through holes 79 correspond one-to-one with the connecting threaded holes 710. The second fastening bolts 78 are sequentially threaded into the corresponding threaded through holes 79 and connecting threaded holes 710, and the second fastening bolts 78 fix the anti-vortex hub 2, hub cap 3 and mounting block 75 together.

[0032] In this embodiment, when the propeller hub 1 and the vortex-suppressing hub 2 are connected, the second hexagonal post 71 is inserted into the second hexagonal through slot 72, and the threaded rod 76 is threaded into the second threaded slot 73, so that the inner side wall of the mounting block 75 fits against the side of the vortex-suppressing hub 2 near the hub cap 3. The mounting block 75 is inserted into the mounting slot 74, so that the ends of the vortex-suppressing hub 2 and the hub cap 3 fit together. The second fastening bolt 78 is placed into the second bolt hole 77, so that the second fastening bolt 78 is threaded into the corresponding threaded through hole 79 and the connecting threaded hole 710 in sequence. The second fastening bolt 78 fixes the hub cap 3, the mounting block 75 and the vortex-suppressing hub 2 together, and in conjunction with the second hexagonal post 71, the propeller hub 1, the vortex-suppressing hub 2 and the hub cap 3 are connected into a whole, increasing the load-bearing capacity at the connection of the propeller hub 1, the vortex-suppressing hub 2 and the hub cap 3.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A vortex shedding fin type propeller based on an energy saving flow guiding device, characterized in that, include: The device comprises a propeller hub, a vortex-suppressing hub, and a hub cap. The vortex-suppressing hub is disposed between the propeller hub and the hub cap. A plurality of propeller blades are uniformly and evenly fixedly installed on the outer wall of the propeller hub. A plurality of vortex-suppressing blades are uniformly and evenly fixedly installed on the outer wall of the vortex-suppressing hub. The vortex-suppressing hub is frustum-shaped. The outer diameter of the vortex-suppressing hub near the propeller hub is larger than the outer diameter near the hub cap. The outer diameter of the vortex-suppressing hub near the propeller hub is the same as the diameter of the propeller hub near the vortex-suppressing hub. The outer surface of the hub cap is spherical. The outer diameter of the hub cap near the propeller hub is the same as the outer diameter of the vortex-suppressing hub near the hub cap. The outer edge of the hub cap is tangent to the outer edge of the vortex-suppressing hub. A first connecting component is disposed between the propeller hub and the vortex-suppressing hub. A second connecting component is disposed between the propeller hub and the hub cap.

2. The energy saving guide vane based ship's vortex shedding fin type propeller blade according to claim 1, characterized in that, The first connecting component includes a plurality of first hexagonal pillars, which are equidistantly and uniformly fixedly installed at one end of the propeller hub near the vortex suppressor hub. The vortex suppressor hub is provided with a plurality of first hexagonal through slots at equal intervals at one end of the propeller hub. The plurality of first hexagonal pillars correspond one-to-one with the first hexagonal through slots, and the first hexagonal pillars are disposed in the corresponding first hexagonal through slots.

3. The energy saving guide vane based ship's vortex shedding fin type propeller blade according to claim 2, characterized in that, A first threaded groove is provided in the center of a plurality of first hexagonal columns. A plurality of first bolt holes are provided at equal intervals near the end of the anti-vortex hub. The plurality of first bolt holes correspond one-to-one with the first hexagonal through grooves. The first bolt holes and the corresponding first hexagonal through grooves are interconnected. A first fastening bolt is provided in the first bolt hole. The end of the first fastening bolt is threaded into the first bolt hole.

4. The energy saving guide vane based ship deswirler fin paddle of claim 1, wherein, The second connecting component includes a second hexagonal post, which is fixedly installed at the center of the propeller hub near the vortex suppressor hub. A second hexagonal through slot is provided in the center of the vortex suppressor hub, and the second hexagonal post is disposed in the inner cavity of the second hexagonal through slot. A second threaded groove is provided in the center of the second hexagonal post. A mounting slot is provided at the end of the hub cap near the propeller hub, and a mounting block is provided in the mounting slot. A threaded rod is fixedly installed at the center of the mounting block near the vortex suppressor hub, and the threaded rod is threadedly installed in the second threaded groove.

5. The energy saving guide vane based ship's vortex shedding fin type propeller blade according to claim 4, characterized in that, The outer wall of the hub cap is provided with a number of second bolt holes, and a second fastening bolt is provided in the second bolt holes. The mounting block is provided with a number of threaded through holes, and the number of second bolt holes corresponds one-to-one with the threaded through holes. The anti-vortex hub is provided with a number of connecting threaded holes near the end of the hub cap, and the threaded through holes corresponds one-to-one with the connecting threaded holes. The second fastening bolts are sequentially threaded into the corresponding threaded through holes and connecting threaded holes.

6. The energy saving guide vane based ship's vortex shedding fin type propeller blade according to claim 5, characterized in that, The inner wall of the mounting block fits against the side of the anti-vortex hub near the hub cap, and the second fastening bolt fixes the anti-vortex hub, hub cap and mounting block together.

Images