Angle-adjustable ship propeller energy-saving rectifying device

Abstract

The invention discloses an angle-adjustable ship propeller energy-saving rectifying device, and relates to the technical field of ship propellers, the angle-adjustable ship propeller energy-saving rectifying device comprises a propeller body, a rectifying cap is slidably connected to one side of the propeller body, an adjusting mechanism is arranged on the rectifying cap, and limiting mechanisms are arranged on the propeller body and the rectifying cap. The adjusting mechanism comprises a cavity formed in the rectifying cap, a storage battery is fixedly installed on the inner wall of one side of the cavity, a motor is fixedly installed on the inner wall of one side of the cavity, an output shaft of the motor is fixedly connected with a first gear, and a plurality of supporting rods distributed circumferentially are rotationally connected to the inner wall of one side of the cavity. According to the angle-adjustable ship propeller energy-saving rectifying device, the effect of adjusting the angles of the multiple vortex eliminating fins is achieved, so that the form of water flow entering the propeller body is optimized, wake flow rotation energy is recycled, and the ship propulsion efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of marine propeller technology, and in particular to an energy-saving rectifier for marine propellers with adjustable angles. Background Technology

[0002] A propeller is a device that uses blades to rotate in air or water, converting the rotational power of an engine into propulsion. It can have two or more blades connected to a hub, and the rearward side of the blades is a helical surface or a near-helical surface. A rectifier optimizes the water flow pattern entering the propeller and recovers the rotational energy of the wake, thereby significantly improving the propulsion efficiency of the ship.

[0003] Chinese patent document CN216734720U discloses a marine energy-saving propeller, including a propeller body, a hub, a flow rectifier cap at one end of the hub, and a transmission mechanism coaxially connected to the end of the hub away from the flow rectifier cap. Multiple sets of guide holes are equally spaced around the circumference on the side of the hub near the transmission mechanism, extending through the flow rectifier cap. A first guide groove is formed on the inner wall of the guide hole. The first guide groove in the guide hole can increase the flow velocity of water passing through the guide hole, minimizing the resistance brought to the hub by the water flow. A second guide groove changes the flow direction when the water impacts the blades, reducing the pressure difference on the blades and reducing the lateral water flow on the blades, thereby improving the ship's operating efficiency and achieving energy-saving effects.

[0004] The existing technology has the following problems:

[0005] However, the anti-vortex fins on the propeller can only maintain one angle and cannot be adjusted, making it inconvenient to optimize the water flow pattern entering the propeller. Summary of the Invention

[0006] This invention provides an adjustable-angle energy-saving rectifier for ship propellers to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] An adjustable-angle energy-saving rectifier for a ship propeller includes a propeller body, a rectifier cap slidably connected to one side of the propeller body, an adjustment mechanism on the rectifier cap, and a limit mechanism on both the propeller body and the rectifier cap.

[0009] The adjustment mechanism includes a cavity opened inside the rectifier cap. A battery is fixedly installed on one inner wall of the cavity. A motor is fixedly installed on one inner wall of the cavity. The output shaft of the motor is fixedly connected to a first gear. A plurality of circumferentially distributed support rods are rotatably connected to one inner wall of the cavity. A second gear is fixedly connected to the outer side of each of the plurality of support rods.

[0010] The limiting mechanism includes a positioning plate fixedly connected to one side of the rectifier cap, and limiting blocks are fixedly connected to the top and bottom of the positioning plate.

[0011] Preferably, the outer side of the first gear meshes with the outer side of a plurality of second gears, the outer side of each of the plurality of support rods is fixedly connected with a first bevel gear, the interior of the rectifier cap is rotatably connected with a plurality of circumferentially distributed rotating rods, one side of each of the plurality of rotating rods is fixedly connected with a second bevel gear, the outer side of the first bevel gear meshes with the outer side of the second bevel gear, and one end of each of the plurality of rotating rods is fixedly connected with an anti-vortex fin.

[0012] Preferably, the anti-vortex fins are staggered with the blades on the propeller body.

[0013] Preferably, the positioning plate and the propeller body are provided with two symmetrically distributed threaded grooves, and the interior of each of the two threaded grooves is threaded with a fixing bolt.

[0014] Preferably, a positioning groove is provided on one side of the propeller body, and the size of the positioning plate is adapted to the size of the positioning groove.

[0015] Preferably, two symmetrically distributed limiting grooves are provided on one side of the propeller body, and the size of the limiting block is adapted to the size of the limiting groove.

[0016] Preferably, the propeller body and the rectifier cap are provided with a plurality of circumferentially distributed guide holes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention provides an adjustable-angle energy-saving rectifier for ship propellers. By setting an adjustment mechanism, the angle of multiple anti-vortex fins can be adjusted, thereby optimizing the water flow pattern entering the propeller body, recovering the rotational energy of the wake, and thus significantly improving the ship's propulsion efficiency.

[0019] 2. This invention provides an adjustable-angle energy-saving rectifier for ship propellers. By setting a limiting mechanism, the rectifier cap is fixed in place, which facilitates the horizontal and vertical fixing of the rectifier cap, increases the stability of the rectifier cap after installation, and facilitates the disassembly, replacement and maintenance of the rectifier cap. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a rear view of the structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the cavity in this invention;

[0023] Figure 4 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the limiting mechanism structure of the present invention.

[0025] In the diagram: 1. Propeller body; 2. Rectifier cap; 3. Adjustment mechanism; 31. Cavity; 32. Battery; 33. Motor; 34. First gear; 35. Support rod; 36. Second gear; 37. First bevel gear; 38. Rotating rod; 39. Second bevel gear; 310. Anti-vortex fin; 4. Limiting mechanism; 41. Positioning plate; 42. Limiting block; 43. Threaded groove; 44. Fixing bolt; 5. Guide hole. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-5 As shown, an adjustable-angle ship propeller energy-saving rectifier includes a propeller body 1, a rectifier cap 2 slidably connected to one side of the propeller body 1, an adjustment mechanism 3 provided on the rectifier cap 2, and a limit mechanism 4 provided on the propeller body 1 and the rectifier cap 2.

[0028] The adjustment mechanism 3 includes a cavity 31 opened inside the rectifier cap 2. A battery 32 is fixedly installed on one inner wall of the cavity 31. A motor 33 is fixedly installed on one inner wall of the cavity 31. A first gear 34 is fixedly connected to the output shaft of the motor 33. A plurality of circumferentially distributed support rods 35 are rotatably connected to one inner wall of the cavity 31. A second gear 36 is fixedly connected to the outer side of each of the plurality of support rods 35.

[0029] The limiting mechanism 4 includes a positioning plate 41 fixedly connected to one side of the rectifier cap 2, and limiting blocks 42 are fixedly connected to the top and bottom of the positioning plate 41.

[0030] It should be noted that by setting up the storage battery 32, it is convenient to supply power to the motor 33.

[0031] like Figures 1-5 As shown, the outer side of the first gear 34 meshes with the outer side of multiple second gears 36, and the outer side of multiple support rods 35 is fixedly connected to the first bevel gear 37. The interior of the rectifier cap 2 is rotatably connected to multiple circumferentially distributed rotating rods 38, and one side of each of the multiple rotating rods 38 is fixedly connected to a second bevel gear 39. The outer side of the first bevel gear 37 meshes with the outer side of the second bevel gear 39, and one end of each of the multiple rotating rods 38 is fixedly connected to an anti-vortex fin 310.

[0032] It should be noted that when the motor 33 is started, the output shaft of the motor 33 drives the first gear 34 to rotate, the first gear 34 drives multiple second gears 36 to rotate, the multiple second gears 36 drive multiple support rods 35 to rotate, the multiple support rods 35 drive multiple first bevel gears 37 to rotate, the multiple first bevel gears 37 drive multiple second bevel gears 39 to rotate, the multiple second bevel gears 39 drive multiple rotating rods 38 to rotate, and the multiple rotating rods 38 drive multiple anti-vortex fins 310 to rotate. This adjusts the angle of the multiple anti-vortex fins 310, thereby optimizing the water flow pattern entering the propeller body, recovering the rotational energy of the wake, and thus significantly improving the ship's propulsion efficiency.

[0033] like Figures 1-5 As shown, the anti-vortex fin 310 is staggered with the blades on the propeller body 1.

[0034] It should be noted that the anti-vortex fin 310 reduces air bubbles at the tail of the propeller body 1, reduces the cavitation effect, thereby enhancing hydrodynamic performance and improving propulsion efficiency.

[0035] like Figures 1-5 As shown, the positioning plate 41 and the propeller body 1 are provided with two symmetrically distributed threaded grooves 43, and the interior of the two threaded grooves is threaded with fixing bolts 44.

[0036] It should be noted that by unscrewing the two fixing bolts 44 and then pulling the rectifier cap 2, the positioning plate 41 is pulled out from the inside of the positioning groove, and the limiting block 42 is pulled out from the inside of the limiting groove, which facilitates the disassembly of the rectifier cap 2, and thus facilitates the replacement and maintenance of the rectifier cap 2 and the adjustment mechanism 3.

[0037] like Figures 1-5 As shown, a positioning groove is provided on one side of the propeller body 1, and the size of the positioning plate 41 is adapted to the size of the positioning groove.

[0038] It should be noted that this facilitates the horizontal fixation of the rectifier cap 2, increasing the stability of the rectifier cap 2 after installation.

[0039] like Figures 1-5 As shown, two symmetrically distributed limiting grooves are provided on one side of the propeller body 1, and the size of the limiting block 42 is adapted to the size of the limiting groove 43.

[0040] It should be noted that this facilitates the positioning of the positioning plate 41 and makes it easier for the fixing bolt 44 to be inserted into the threaded groove 43 opened on the positioning plate 41.

[0041] like Figures 1-5 As shown, the propeller body 1 and the rectifier cap 2 are provided with multiple circumferentially distributed guide holes 5.

[0042] It should be noted that this reduces the resistance that the water flow brings to the propeller body 1.

[0043] The working principle of this invention is as follows: When in use, the propeller body 1 is installed on the ship. When it is necessary to adjust the angle of the anti-vortex fin 310, the motor 33 is started. The output shaft of the motor 33 drives the first gear 34 to rotate. The first gear 34 drives multiple second gears 36 to rotate. The multiple second gears 36 drive multiple support rods 35 to rotate. The multiple support rods 35 drive multiple first bevel gears 37 to rotate. The multiple first bevel gears 37 drive multiple second bevel gears 39 to rotate. The multiple second bevel gears 39 drive multiple rotating rods 38 to rotate. The multiple rotating rods 38 drive multiple anti-vortex fins 310 to rotate, thereby adjusting the angle of the multiple anti-vortex fins 310, thereby optimizing the water flow pattern entering the propeller body, recovering the rotational energy of the wake, and thus significantly improving the ship's propulsion efficiency. By setting a limiting mechanism 4, unscrewing two fixing bolts 44, and then pulling the rectifier cap 2, the positioning plate 41 is pulled out from the inside of the positioning groove, and at the same time, the limiting block 42 is pulled out from the inside of the limiting groove, thereby facilitating the disassembly of the rectifier cap 2, and thus facilitating the replacement and maintenance of the rectifier cap 2 and the adjusting mechanism 3.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable-angle energy-saving rectifier for a ship propeller, comprising a propeller body (1), characterized in that: A rectifier cap (2) is slidably connected to one side of the propeller body (1), and an adjustment mechanism (3) is provided on the rectifier cap (2). A limit mechanism (4) is provided on the propeller body (1) and the rectifier cap (2). The adjustment mechanism (3) includes a cavity (31) opened inside the rectifier cap (2). A battery (32) is fixedly installed on one side of the inner wall of the cavity (31). A motor (33) is fixedly installed on one side of the inner wall of the cavity (31). A first gear (34) is fixedly connected to the output shaft of the motor (33). A plurality of circumferentially distributed support rods (35) are rotatably connected to one side of the inner wall of the cavity (31). A second gear (36) is fixedly connected to the outer side of each of the plurality of support rods (35). The limiting mechanism (4) includes a positioning plate (41) fixedly connected to one side of the rectifier cap (2), and limiting blocks (42) are fixedly connected to the top and bottom of the positioning plate (41).

2. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 1, characterized in that: The outer side of the first gear (34) meshes with the outer side of a plurality of second gears (36). The outer side of each of the plurality of support rods (35) is fixedly connected with a first bevel gear (37). The interior of the rectifier cap (2) is rotatably connected with a plurality of circumferentially distributed rotating rods (38). The outer side of each of the plurality of rotating rods (38) is fixedly connected with a second bevel gear (39). The outer side of the first bevel gear (37) meshes with the outer side of the second bevel gear (39). One end of each of the plurality of rotating rods (38) is fixedly connected with a vortex-suppressing fin (310).

3. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 2, characterized in that: The anti-vortex fin (310) is staggered with the blades on the propeller body (1).

4. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 1, characterized in that: The positioning plate (41) and the propeller body (1) are provided with two symmetrically distributed threaded grooves (43), and the interior of the two threaded grooves (43) is threaded with fixing bolts (44).

5. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 4, characterized in that: A positioning groove is provided on one side of the propeller body (1), and the size of the positioning plate (41) is adapted to the size of the positioning groove.

6. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 4, characterized in that: The propeller body (1) has two symmetrically distributed limiting grooves on one side, and the size of the limiting block (42) is adapted to the size of the limiting groove.

7. The adjustable-angle energy-saving rectifier for a ship propeller according to claim 1, characterized in that: The propeller body (1) and the rectifier cap (2) are provided with multiple circumferentially distributed guide holes (5).

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