Anti-entanglement device for marine propeller

Abstract

The invention discloses an anti-winding device for a marine propeller, and relates to the technical field of propellers. An anti-winding device for a marine propeller comprises a mounting shell, a rotating shell and a pod body, wherein the pod body is fixedly mounted on the mounting shell, the rotating shell is rotatably mounted on the mounting shell, a fixed shaft is fixedly connected to one end of the rotating shell away from the mounting shell, and four blades are fixedly connected to the outer surface of the fixed shaft, and the first bevel gear, the second bevel gear, the reciprocating rod, the sliding plate, the first cutting knife, the second cutting knife, the inner gear ring and the gear cooperate, so that the first bevel gear can drive the sliding plate to reciprocate under the guidance of the sliding groove, so as to facilitate driving the first cutting knife and the second cutting knife to reciprocate between the two blades, thereby preventing the blades from being entangled with debris, so as to facilitate timely cutting and processing of the debris entangled on the blades, and further improve the service life of the propeller.

Description

Technical Field

[0001] The invention relates to the technical field of propellers, and in particular to an anti-winding device for a marine propeller. Background Art

[0002] A marine propeller is a device that converts the engine's rotational power into propulsion by rotating the blades in the water. The original intention of designing a marine propeller is to improve the ship's navigation efficiency, stability and maneuverability.

[0003] During the navigation of a ship, the propeller, as a key component of ship propulsion, often faces the risk of being entangled by debris such as aquatic plants, fishing nets, ropes, etc. These entanglements will not only reduce the propulsion efficiency of the propeller and increase fuel consumption, but may even cause propeller damage or ship stall, seriously threatening the safe navigation of the ship. Therefore, we propose an anti-entanglement device for marine propellers. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide an anti-entanglement device for a marine propeller, which can solve the problem that during the navigation of a ship, the propeller, as a key component for ship propulsion, is often faced with the risk of being entangled by water plants, fishing nets, ropes and other debris. These entanglements will not only reduce the propulsion efficiency of the propeller and increase fuel consumption, but may even cause damage to the propeller or stall of the ship, seriously threatening the safe navigation of the ship.

[0005] To achieve the above object, the present invention provides the following technical solution: an anti-winding device for a marine propeller, comprising:

[0006] An installation shell, a rotating shell and a pod body, the pod body is fixedly installed on the installation shell, the rotating shell is rotatably installed on the installation shell, an end of the rotating shell away from the installation shell is fixedly connected to a fixed shaft, an outer surface of the fixed shaft is fixedly connected to four blades, an inner wall of the installation shell is fixedly connected to a positioning ring, a driving mechanism is fixedly installed inside the positioning ring, an output end of the driving mechanism is fixedly connected to the rotating shaft, an end of the rotating shaft away from the driving mechanism is fixedly connected to the fixed shaft, a fixing plate is fixedly connected to the outer surface of the rotating shaft, and the fixing plate is fixedly connected to the inner wall of the rotating shell;

[0007] An anti-winding cutting structure, the anti-winding cutting structure is located on the rotating shell;

[0008] A tool grinding structure, the tool grinding structure is located on a fixed axis;

[0009] The anti-winding cutting structure includes two first bevel gears, two rotating cylinders and two rotating columns. The two rotating cylinders are fixedly connected to the outer surface of the rotating shaft, the two rotating columns are rotatably connected in the corresponding rotating cylinders, and the two first bevel gears are fixedly connected to the corresponding rotating columns.

[0010] Preferably, the anti-winding cutting structure also includes a second bevel gear, an inner gear ring, a gear, a drive motor and a support plate. The second bevel gear is rotatably connected to the outer surface of the rotating shaft, the two first bevel gears are meshingly connected to the second bevel gear, the inner gear ring is fixedly connected to the second bevel gear, the support plate is fixedly connected to the outer surface of the rotating shaft, the drive motor is fixedly installed on a side of the support plate away from the rotating shaft, the output end of the drive motor is fixedly connected to the gear, and the gear is meshingly connected to the inner gear ring.

[0011] Preferably, two swinging cavities are provided on the outer surface of the rotating shell, and a rotating groove communicating with the interior of the rotating shell is provided inside the two swinging cavities, and a sealing groove is provided on the inner walls of the two rotating grooves, and a rotating disk is rotatably connected to the interior of the two rotating grooves, and the two rotating disks are fixedly connected to the corresponding first bevel gears, and sealing rings are fixedly connected to the outer surfaces of the two rotating disks, and the two sealing rings are rotatably connected to the corresponding sealing grooves.

[0012] Preferably, the opposite back surfaces of the two first bevel gears are rotatably connected to first rotating rods, one end of the two first rotating rods rotates through the corresponding rotating disk, and the outer surfaces of the two first rotating rods are rotatably connected to reciprocating rods.

[0013] Preferably, the outer surface of the fixed shaft is respectively provided with two sliding grooves and two guide grooves, the two guide grooves are communicated with the interior of the corresponding sliding grooves, the interiors of the two sliding grooves are slidably connected with sliding plates, the two sliding plates are rotatably connected with the second rotating rod on the side away from the fixed shaft, and the ends of the two reciprocating rods away from the corresponding first rotating rods are rotatably connected with the corresponding second rotating rods.

[0014] Preferably, first cutting knives are fixedly mounted on opposite back surfaces of the two sliding plates, and both first cutting knives are double-edged knives. Second cutting knives are fixedly mounted on one side of the two sliding plates away from the rotating shell.

[0015] Preferably, the tool grinding structure includes two mounting plates, two fixing frames and two whetstones, the two mounting plates are fixedly mounted on the outer surface of the fixed shaft, the opposite surfaces of the two mounting plates are provided with storage grooves, the interiors of the two mounting plates are provided with multiple adjustment grooves, the two whetstones are fixedly mounted in the corresponding fixing frames, the opposite back surfaces of the two fixing frames are fixedly connected with multiple connecting rods, one end of the multiple connecting rods slides and extends into the corresponding adjustment grooves, the ends of the multiple connecting rods away from the corresponding fixing frames are fixedly connected with sliding disks, and the multiple sliding disks are slidably connected in the corresponding adjustment grooves.

[0016] Preferably, inner walls of the plurality of adjustment grooves are fixedly connected with springs, and ends of the plurality of springs away from the inner walls of the corresponding adjustment grooves are fixedly connected to corresponding sliding disks.

[0017] Preferably, the number of the tool grinding structures is two, and the two tool grinding structures are symmetrically arranged on the fixed axis.

[0018] Preferably, a limiting block is fixedly connected to one side of the rotating shell close to the mounting shell, a limiting groove is provided on one side of the mounting shell close to the rotating shell, and the limiting block is rotatably connected in the limiting groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The anti-winding device for a marine propeller, through the cooperation of a first bevel gear, a second bevel gear, a reciprocating rod, a sliding plate, a first cutting knife, a second cutting knife, an inner gear ring and a gear, enables the first bevel gear to drive the sliding plate to reciprocate under the guidance of a sliding groove, thereby facilitating the first cutting knife and the second cutting knife to reciprocate between two blades, thereby preventing debris from being entangled on the blades, thereby facilitating timely cutting of the debris entangled on the blades, and further improving the service life of the propeller.

[0021] 2. The anti-winding device for the marine propeller, through the cooperation of the mounting plate, the spring, the sliding disk, the connecting rod, the fixing frame and the whetstone, enables the two whetstones to always keep in contact with the blade of the first cutting knife under the support of the corresponding multiple springs, thereby facilitating the grinding of the blade of the first cutting knife, so that the blade of the first cutting knife remains sharp, thereby improving the use effect of the first cutting knife.

[0022] 3. The anti-winding device for the marine propeller, through the cooperation of the sealing ring and the rotating disk, enables the sealing ring to seal the rotating disk when the rotating disk rotates, thereby preventing water from penetrating into the rotating shell from the rotating disk, and further improving the sealing effect in the rotating shell.

[0023] 4. The anti-winding device for the marine propeller can ensure that the rotating shell is stably connected to the mounting shell through the rotation connection of the limit block and the limit groove, thereby improving the stability of the propeller during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the rotating shell of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the inner gear ring of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the first bevel gear of the present invention;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the installation housing of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention;

[0031] Figure 7 It is a schematic diagram of the fixed shaft structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the whetstone of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the first cutting knife of the present invention;

[0034] Fig.10 It is a schematic diagram of the reciprocating rod structure of the present invention.

[0035] 1. Mounting shell; 2. Rotating shell; 3. Nacelle body; 4. First rotating rod; 5. Rotating disk; 6. Swinging chamber; 7. Reciprocating rod; 8. First cutting knife; 9. Mounting plate; 10. Blade; 11. Sliding groove; 12. Fixed shaft; 13. Internal gear ring; 14. Rotating shaft; 15. Driving mechanism; 16. Limit block; 17. Driving motor; 18. First bevel gear; 19. Fixed plate; 20. Second bevel gear; 21. Rotating cylinder; 22. Sealing ring; 23. Support plate; 24. Gear; 25. Rotating groove; 26. Sealing groove; 27. Limit groove; 28. Adjusting groove; 29. ​​Spring; 30. Sliding disk; 31. Whetstone; 32. Connecting rod; 33. Fixed frame; 34. Second cutting knife; 35. Second rotating rod; 36. Guide groove; 37. Sliding plate; 38. Positioning ring; 39. Rotating column; 40. Storage groove. DETAILED DESCRIPTION

[0036] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] See also Figure 1-10 The present invention provides a technical solution: an anti-winding device for a marine propeller, comprising:

[0041] An installation shell 1, a rotating shell 2 and a pod body 3, the pod body 3 is fixedly installed on the installation shell 1, the rotating shell 2 is rotatably installed on the installation shell 1, the rotating shell 2 is fixedly connected to a fixed shaft 12 at one end away from the installation shell 1, and four blades 10 are fixedly connected to the outer surface of the fixed shaft 12, a positioning ring 38 is fixedly connected to the inner wall of the installation shell 1, a driving mechanism 15 is fixedly installed inside the positioning ring 38, an output end of the driving mechanism 15 is fixedly connected to a rotating shaft 14, an end of the rotating shaft 14 away from the driving mechanism 15 is fixedly connected to the fixed shaft 12, a fixing plate 19 is fixedly connected to the outer surface of the rotating shaft 14, and the fixing plate 19 is fixedly connected to the inner wall of the rotating shell 2;

[0042] An anti-winding cutting structure, the anti-winding cutting structure is located on the rotating shell 2;

[0043] A tool grinding structure, the tool grinding structure is located on the fixed shaft 12;

[0044] The anti-winding cutting structure includes two first bevel gears 18, two rotating cylinders 21 and two rotating columns 39. The two rotating cylinders 21 are fixedly connected to the outer surface of the rotating shaft 14, and the two rotating columns 39 are rotatably connected in the corresponding rotating cylinders 21. The two first bevel gears 18 are fixedly connected to the corresponding rotating columns 39.

[0045] The anti-winding cutting structure also includes a second bevel gear 20, an inner gear ring 13, a gear 24, a drive motor 17 and a support plate 23. The second bevel gear 20 is rotatably connected to the outer surface of the rotating shaft 14, and the two first bevel gears 18 are meshed with the second bevel gear 20. The inner gear ring 13 is fixedly connected to the second bevel gear 20, and the support plate 23 is fixedly connected to the outer surface of the rotating shaft 14. The drive motor 17 is fixedly installed on the side of the support plate 23 away from the rotating shaft 14, and the output end of the drive motor 17 is fixedly connected to the gear 24, and the gear 24 is meshed with the inner gear ring 13.

[0046] Two swinging cavities 6 are arranged on the outer surface of the rotating shell 2, and a rotating groove 25 communicating with the interior of the rotating shell 2 is opened inside the two swinging cavities 6, and a sealing groove 26 is opened on the inner wall of the two rotating grooves 25, and a rotating disk 5 is rotatably connected inside the two rotating grooves 25, and the two rotating disks 5 are fixedly connected to the corresponding first bevel gears 18, and the outer surfaces of the two rotating disks 5 are fixedly connected to sealing rings 22, and the two sealing rings 22 are rotatably connected to the corresponding sealing grooves 26.

[0047] The opposite back surfaces of the two first bevel gears 18 are rotatably connected with the first rotating rods 4, one ends of the two first rotating rods 4 are rotatably passed through the corresponding rotating disks 5, the outer surfaces of the two first rotating rods 4 are rotatably connected with the reciprocating rods 7, the outer surfaces of the fixed shaft 12 are respectively provided with two sliding grooves 11 and two guide grooves 36, the two guide grooves 36 are communicated with the interior of the corresponding sliding grooves 11, the interiors of the two sliding grooves 11 are slidably connected with sliding plates 37, the sides of the two sliding plates 37 away from the fixed shaft 12 are rotatably connected with the second rotating rods 35, and the ends of the two reciprocating rods 7 away from the corresponding first rotating rods 4 are rotatably connected with the corresponding second rotating rods 35.

[0048] The first cutting knives 8 are fixedly mounted on the opposite back surfaces of the two sliding plates 37 . Both first cutting knives 8 are double-edged knives. The second cutting knives 34 are fixedly mounted on the side of the two sliding plates 37 away from the rotating shell 2 .

[0049] The tool grinding structure includes two mounting plates 9, two fixing frames 33 and two whetstones 31. The two mounting plates 9 are fixedly mounted on the outer surface of the fixed shaft 12. The opposite surfaces of the two mounting plates 9 are provided with storage grooves 40. The interiors of the two mounting plates 9 are provided with multiple adjustment grooves 28. The two whetstones 31 are fixedly mounted in the corresponding fixing frames 33. The opposite back surfaces of the two fixing frames 33 are fixedly connected with multiple connecting rods 32. One ends of the multiple connecting rods 32 are slidably extended into the corresponding adjustment grooves 28. The ends of the multiple connecting rods 32 away from the corresponding fixing frames 33 are fixedly connected with sliding disks 30. The multiple sliding disks 30 are slidably connected in the corresponding adjustment grooves 28.

[0050] The inner walls of the multiple adjustment grooves 28 are fixedly connected with springs 29, and the ends of the multiple springs 29 away from the inner walls of the corresponding adjustment grooves 28 are fixedly connected to the corresponding sliding disks 30. There are two tool grinding structures, and the two tool grinding structures are symmetrically arranged on the fixed shaft 12.

[0051] A limiting block 16 is fixedly connected to one side of the rotating shell 2 close to the mounting shell 1 , and a limiting groove 27 is provided on one side of the mounting shell 1 close to the rotating shell 2 , in which the limiting block 16 is rotatably connected.

[0052] Furthermore, when using the device, the driving mechanism 15 is started by connecting an external power supply, and the driving mechanism 15 drives the rotating shaft 14 to rotate. The rotation of the rotating shaft 14 drives the rotating shell 2 to rotate through the fixed plate 19, so that the rotating shell 2 can rotate stably under the rotation connection between the limit block 16 and the limit groove 27. The rotation of the rotating shell 2 drives the fixed shaft 12 to rotate, and the rotation of the fixed shaft 12 drives the four blades 10 to rotate, thereby facilitating the provision of power to the boat. The driving motor 17 is started by connecting an external power supply, and the driving motor 17 drives the gear 24 to rotate. The rotation of the gear 24 drives the inner gear ring 13 to rotate the second bevel gear 20. The rotation of the second bevel gear 20 drives the two first bevel gears 18 to rotate. The rotation of the two first bevel gears 18 will drive the corresponding rotating columns 39 to rotate in the corresponding rotating cylinders 21, thereby providing stable rotation support for the two first bevel gears 18.

[0053] Furthermore, when the device is used, the two first bevel gears 18 rotate to drive the corresponding rotating disk 5 to rotate in the corresponding rotating groove 25, and the two rotating disks 5 will drive the corresponding sealing ring 22 to rotate in the corresponding sealing groove 26. The two first bevel gears 18 rotate to drive the corresponding first rotating rod 4 to rotate. Under the eccentric position of the two first rotating rods 4, the rotation of the two first rotating rods 4 will drive the corresponding reciprocating rod 7 to swing. The swing of the two reciprocating rods 7 will pass through the corresponding second rotating rod 35 to drive the corresponding sliding plate 37 to reciprocate under the guidance of the corresponding sliding groove 11.

[0054] Furthermore, when the device is used, the movement of the two sliding plates 37 will drive the first cutting knife 8 and the second cutting knife 34 thereon to move back and forth, thereby preventing debris from being entangled on the blade 10, thereby facilitating timely cutting of the debris entangled on the blade 10.

[0055] Furthermore, when the device is used, when the first cutting knife 8 moves in the two mounting plates 9, the blade surface of the first cutting knife 8 will contact the two whetstones 31, so that the two whetstones 31 will grind the blade of the first cutting knife 8, so that the blade of the first cutting knife 8 remains sharp, and when the first cutting knife 8 passes through the two mounting plates 9, the first cutting knife 8 will drive and squeeze the two whetstones 31, so that the two whetstones 31 will always keep in contact with the blade of the first cutting knife 8 under the support of the corresponding multiple springs 29, and the two whetstones 31 will be squeezed to drive the corresponding fixing frame 33 to move under the guidance of the multiple connecting rods 32 thereon, and the movement of the multiple connecting rods 32 will drive the corresponding sliding disk 30 to compress the corresponding spring 29.

[0056] Through the cooperation of the first bevel gear 18, the second bevel gear 20, the reciprocating rod 7, the sliding plate 37, the first cutting knife 8, the second cutting knife 34, the inner gear ring 13 and the gear 24, the first bevel gear 18 can drive the sliding plate 37 to reciprocate under the guidance of the sliding groove 11, thereby facilitating the first cutting knife 8 and the second cutting knife 34 to reciprocate between the two blades 10, thereby preventing debris from being entangled on the blades 10, thereby facilitating timely cutting of the debris entangled on the blades 10, and further improving the service life of the propeller.

[0057] Through the cooperation of the mounting plate 9, the spring 29, the sliding disk 30, the connecting rod 32, the fixing frame 33 and the whetstone 31, the two whetstones 31 will always maintain contact with the blade of the first cutting knife 8 under the support of the corresponding multiple springs 29, thereby facilitating the grinding of the blade of the first cutting knife 8, so that the blade of the first cutting knife 8 remains sharp, thereby improving the use effect of the first cutting knife 8.

[0058] The rotational connection between the limiting block 16 and the limiting groove 27 can ensure that the rotating shell 2 is stably rotationally connected to the mounting shell 1, thereby improving the stability of the propeller during rotation.

[0059] Through the cooperation between the sealing ring 22 and the rotating disk 5 , the sealing ring 22 can seal the rotating disk 5 when the rotating disk 5 rotates, thereby preventing water from penetrating into the rotating shell 2 through the rotating disk 5 , further improving the sealing effect inside the rotating shell 2 .

[0060] Working principle: the driving mechanism 15 is started by connecting an external power source, the driving mechanism 15 drives the rotating shaft 14 to rotate, the rotating shaft 14 rotates and drives the rotating shell 2 to rotate through the fixed plate 19, so that the rotating shell 2 can rotate stably under the rotation connection between the limit block 16 and the limit groove 27, the rotating shell 2 rotates and drives the fixed shaft 12 to rotate, the fixed shaft 12 rotates and drives the four blades 10 to rotate, so as to provide power for the boat, and the driving motor 17 is started by connecting an external power source, the driving motor 17 drives the gear 24 to rotate, the gear 24 rotates and drives the inner gear ring 13 to rotate the second bevel gear 20, the second bevel gear 20 rotates and drives the two first bevel gears 18 to rotate, the two first bevel gears 18 rotate and the corresponding rotating column 39 rotates in the corresponding rotating cylinder 21, so as to provide stable rotation for the two first bevel gears 18. Dynamic support. When using the device, the two first bevel gears 18 rotate to drive the corresponding rotating disk 5 to rotate in the corresponding rotating groove 25. The two rotating disks 5 will drive the corresponding sealing ring 22 to rotate in the corresponding sealing groove 26. The two first bevel gears 18 rotate to drive the corresponding first rotating rod 4 to rotate. Under the eccentric position set by the two first rotating rods 4, the rotation of the two first rotating rods 4 will drive the corresponding reciprocating rod 7 to swing. The swing of the two reciprocating rods 7 will pass through the corresponding second rotating rod 35 to drive the corresponding sliding plate 37 to reciprocate under the guidance of the corresponding sliding groove 11. When using the device, the movement of the two sliding plates 37 will drive the first cutting knife 8 and the second cutting knife 34 thereon to reciprocate, thereby preventing debris from being entangled on the blade 10, thereby facilitating the timely cutting of the debris entangled on the blade 10.

[0061] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An anti-winding device for a marine propeller, characterized in that: include: An installation shell (1), a rotating shell (2) and a pod body (3), wherein the pod body (3) is fixedly mounted on the installation shell (1), the rotating shell (2) is rotatably mounted on the installation shell (1), an end of the rotating shell (2) away from the installation shell (1) is fixedly connected to a fixed shaft (12), and an outer surface of the fixed shaft (12) is fixedly connected to four blades (10); A positioning ring (38) is fixedly connected to the inner wall of the mounting housing (1), a driving mechanism (15) is fixedly installed inside the positioning ring (38), an output end of the driving mechanism (15) is fixedly connected to a rotating shaft (14), and an end of the rotating shaft (14) away from the driving mechanism (15) is fixedly connected to a fixed shaft (12); Wherein, a fixing plate (19) is fixedly connected to the outer surface of the rotating shaft (14), and the fixing plate (19) is fixedly connected to the inner wall of the rotating shell (2); An anti-winding cutting structure, the anti-winding cutting structure being located on the rotating shell (2); A tool grinding structure, the tool grinding structure is located on the fixed shaft (12); The anti-winding cutting structure comprises two first bevel gears (18), two rotating cylinders (21) and two rotating columns (39), wherein the two rotating cylinders (21) are both fixedly connected to the outer surface of the rotating shaft (14); Wherein, the two rotating columns (39) are both rotatably connected in the corresponding rotating cylinder (21), and the two first bevel gears (18) are both fixedly connected to the corresponding rotating columns (39); The anti-winding cutting structure further comprises a second bevel gear (20), an internal gear ring (13), a gear (24), a drive motor (17) and a support plate (23); the second bevel gear (20) is rotatably connected to the outer surface of the rotating shaft (14); and the two first bevel gears (18) are both meshingly connected to the second bevel gear (20); The inner gear ring (13) is fixedly connected to the second bevel gear (20), the support plate (23) is fixedly connected to the outer surface of the rotating shaft (14), the drive motor (17) is fixedly mounted on a side of the support plate (23) away from the rotating shaft (14), the output end of the drive motor (17) is fixedly connected to the gear (24), and the gear (24) is meshingly connected to the inner gear ring (13); Wherein, two swing cavities (6) are arranged on the outer surface of the rotating shell (2), and the interiors of the two swing cavities (6) are provided with a rotating groove (25) which is in communication with the interior of the rotating shell (2), and the inner walls of the two rotating grooves (25) are provided with a sealing groove (26); The insides of the two rotating grooves (25) are both rotatably connected to rotating disks (5), the two rotating disks (5) are both fixedly connected to the corresponding first bevel gears (18), the outer surfaces of the two rotating disks (5) are both fixedly connected to sealing rings (22), and the two sealing rings (22) are both rotatably connected to the corresponding sealing grooves (26); The opposite surfaces of the two first bevel gears (18) are rotatably connected to the first rotating rods (4), one end of the two first rotating rods (4) is rotatably passed through the corresponding rotating disk (5), and the outer surfaces of the two first rotating rods (4) are rotatably connected to the reciprocating rod (7); The tool grinding structure comprises two mounting plates (9), two fixing frames (33) and two grindstones (31); the two mounting plates (9) are fixedly mounted on the outer surface of the fixing shaft (12); and the opposite surfaces of the two mounting plates (9) are provided with storage grooves (40); The two mounting plates (9) are each provided with a plurality of adjustment slots (28), the two whetstones (31) are each fixedly mounted in a corresponding fixing frame (33), and the opposite back surfaces of the two fixing frames (33) are each fixedly connected with a plurality of connecting rods (32); One end of each of the plurality of connecting rods (32) slidably extends into a corresponding adjustment slot (28), one end of each of the plurality of connecting rods (32) away from a corresponding fixing frame (33) is fixedly connected to a sliding plate (30), and each of the plurality of sliding plates (30) is slidably connected to a corresponding adjustment slot (28); The inner walls of the plurality of adjustment grooves (28) are all fixedly connected with springs (29), and the ends of the plurality of springs (29) away from the inner walls of the corresponding adjustment grooves (28) are all fixedly connected with corresponding sliding plates (30); There are two tool grinding structures, and the two tool grinding structures are symmetrically arranged on the fixed shaft (12); The side of the rotating shell (2) close to the mounting shell (1) is fixedly connected to a limiting block (16); the side of the mounting shell (1) close to the rotating shell (2) is provided with a limiting groove (27); and the limiting block (16) is rotatably connected in the limiting groove (27).

2. The anti-winding device for a marine propeller according to claim 1, characterized in that: The outer surface of the fixed shaft (12) is provided with two sliding grooves (11) and two guide grooves (36), the two guide grooves (36) are communicated with the inside of the corresponding sliding groove (11), and the inside of the two sliding grooves (11) is slidably connected with a sliding plate (37); The two sliding plates (37) are rotatably connected to the second rotating rod (35) at one side away from the fixed shaft (12), and the two reciprocating rods (7) are rotatably connected to the corresponding second rotating rod (35) at one end away from the corresponding first rotating rod (4); The two sliding plates (37) are both fixedly mounted with first cutting knives (8) on their opposite sides, and both first cutting knives (8) are double-edged knives. The two sliding plates (37) are both fixedly mounted with second cutting knives (34) on one side away from the rotating shell (2).

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