Fishing net winding prevention structure of ship propeller

Abstract

The fishing net winding prevention structure of the ship propeller comprises a driving rod, a propeller base is fixedly installed on the left side of the driving rod, a stern shaft box is connected to the right side of the driving rod, and a first cutting mechanism is arranged in the stern shaft box. According to the fishing net winding preventing structure of the ship propeller, by arranging the first cutting mechanism, when a driving rod rotates autonomously, a driving gear fixedly installed on a rod body of the driving rod can drive two driven gears which are connected in a meshed mode to move, and the driven gears move to enable a first transmission rod to rotate; meanwhile, two first bearings connected with the outer wall of the first transmission rod can provide high stability for the rod, then the rod can stably rotate, and a plurality of first cutting blades installed on the rod wall can clean and smash fishing nets or weeds wound on the driving rod through stable rotation of the first transmission rod; therefore, the protection performance of the whole structure is improved, and the operation safety of the ship can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ship propellers, in particular to an anti-fishing net entanglement structure for a ship propeller. Background Technique

[0002] When a ship sails along the coast and in fishing areas, if the operation is not careful and the fishing net entangles the propeller, it will limit the ship's maneuverability, and even cause accidents such as stopping, drifting, and losing control, seriously affecting and endangering the ship's navigation safety. Once the propeller tail shaft of a sailing ship entangles the fishing net, regardless of the degree of entanglement, it will cause an increase in the main engine load, an intensification of the abnormal vibration of the shafting, and the ship's maneuverability will be limited or even out of control, seriously threatening the safety of ports and other ships. If effective disposal measures are not taken in time, the damage to the ship's tail shaft and main engine will be more serious, and it is extremely easy to cause accidents such as damage to the tail shaft sealing device, tail shaft oil leakage, and tail shaft pipe water ingress, affecting the ship's navigation safety.

[0003] At present, there are many anti-fishing net entanglement structures for existing ship propellers. For example, a ship anti-entangling net propeller with the Chinese patent number CN207843279U. The anti-entangling net device on this patent can help users avoid the entanglement of sundries such as weeds or fishing nets on the propeller and ensure the normal operation of the ship. When the propeller on the ship is entangled by weeds or fishing nets, the cutting opening formed by the first blade edge on the propeller and the second blade edge on the movable cover ring will cut the weeds or fishing nets into pieces, and the propeller can rotate normally. When the first blade edge on the propeller and the second blade edge on the movable cover ring are not sharp, the user can disassemble them and replace them with new ones to use again. The flow collecting port in the anti-entangling net device can gather water flow and flow it to the propeller through the flushing nozzle, which can wash away the chopped weeds or fishing nets on the propeller. When there are no sundries such as weeds or fishing nets entangled on the movable cover ring of the propeller, the movable cover ring is far from the blades on the propeller, and the blades can be unrestricted by the movable cover ring. When there are sundries such as weeds or fishing nets entangled on the movable cover ring, the movable cover ring rotates through the rotating shaft and surrounds one side of the propeller to ensure that the blades can work normally without being affected by it. However, since there is still a gap between the first blade edge and the second blade edge on the blade of this patent, some uncut fishing nets or weeds will drill into the transmission rod. If there is too much fishing net or weed accumulated on the transmission rod, it will still affect the operation of the propeller, and in serious cases, it may even lead to dangerous accidents. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an anti-fishing net entanglement structure for a ship propeller, which has the advantage of effectively preventing the fishing net from entangling and solves the problem of poor protection.

[0005] To achieve the above object of effectively preventing fishing nets from getting entangled, the present utility model provides the following technical solution: An anti-fishing-net entanglement structure for a ship's propeller, comprising a driving rod, a propeller seat fixedly installed on the left side of the driving rod, a stern tube housing connected to the right side of the driving rod, a first cutting mechanism arranged inside the stern tube housing, and a second cutting mechanism arranged inside the propeller seat;

[0006] The first cutting mechanism includes two groups of first bearings and a driving gear. Two groups of first bearings are fixedly installed inside the stern tube housing, and a driving gear is fixedly installed on the driving rod. The inner walls of both groups of first bearings are fixedly connected to first transmission rods extending to the outside of the left side of the stern tube housing. Driven gears are fixedly installed on both first transmission rods, and multiple first cutting blades are arranged at one end of both first transmission rods extending to the outside of the left side of the stern tube housing.

[0007] Furthermore, the second cutting mechanism includes two groups of second bearings and two waterproof motors. Two groups of second bearings are fixedly installed inside the propeller seat. The inner walls of both groups of second bearings are fixedly connected to second transmission rods. Two second cutting blades are arranged on both second transmission rods, and two waterproof motors are arranged on the left side of the propeller seat.

[0008] Furthermore, the top and bottom of the driving gear are respectively meshed with the outside of the two driven gears.

[0009] Furthermore, the output shafts of the two waterproof motors are respectively fixedly connected to the two second transmission rods, and two movable grooves adapted to the second cutting blades are respectively formed at the top and bottom of the propeller seat.

[0010] Furthermore, a propeller blade is fixedly installed on the propeller seat, a conical sheath is fixedly connected to the right side of the propeller seat, and an anti-entanglement blade group is arranged outside the conical sheath.

[0011] Furthermore, the outside of the stern tube housing is fixedly connected to the hull, third bearings are fixedly installed on the inner walls of the left and right sides of the stern tube housing, and the outer wall of the driving rod is fixedly connected to the inner walls of the two third bearings.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0013] 1. The anti-fishing net entanglement structure of the ship propeller is provided with a first cutting mechanism. When the driving rod rotates autonomously, the driving gear fixedly installed on the rod body can drive the two meshing driven gears to move, and the movement of the driven gears will cause the first transmission rod to rotate. At the same time, the two first bearings connected to the outer wall of the first transmission rod can provide strong stability for the rod, so that the rod can rotate stably, and the multiple first cutting blades installed on the rod wall can clean and crush the fishing nets or weeds entangled on the driving rod through the stable rotation of the first transmission rod, thereby improving the protection of the overall structure and effectively ensuring the operation safety of the ship.

[0014] 2. The anti-fishing net entanglement structure of the ship's propeller is provided with a second cutting mechanism. When the propeller seat and the propeller blades are entangled with fishing nets or weeds, the output end of the waterproof motor cooperates with the two second bearings to make the second transmission rod rotate stably, and at the same time, the two second cutting blades on the rod body are driven to rotate stably. At this time, the exposed end of the second cutting blade can cut and clean the fishing nets or weeds entangled on the propeller seat and the propeller blades, thereby preventing the propeller seat and the propeller blades from stopping due to the entanglement of fishing nets or weeds, thereby greatly improving the safety of the ship during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a front view of the structure of the utility model;

[0017] Figure 3 This is a front cross-sectional view of the structure of the utility model;

[0018] Figure 4 Practical Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1. driving rod; 2. propeller seat; 3. stern box; 4. first cutting mechanism; 401. first bearing; 402. first transmission rod; 403. driven gear; 404. driving gear; 405. first cutting blade; 5. second cutting mechanism; 501. second bearing; 502. second transmission rod; 503. second cutting blade; 504. waterproof motor; 6. propeller blade; 7. conical sheath; 8. anti-entanglement blade set. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1-4 In this embodiment, a fishing net entanglement prevention structure for a ship propeller includes a driving rod 1, wherein a propeller seat 2 is fixedly installed on the left side of the driving rod 1, a stern shaft box 3 is connected to the right side of the driving rod 1, a first cutting mechanism 4 is arranged inside the stern shaft box 3, and a second cutting mechanism 5 is arranged inside the propeller seat 2;

[0022] The first cutting mechanism 4 includes two groups of first bearings 401 and a driving gear 404. Two groups of first bearings 401 are fixedly installed inside the stern box 3, wherein the number of each group of first bearings 401 is two, and the inner walls of the two groups of first bearings 401 are fixedly connected with a first transmission rod 402 extending to the left side of the stern box 3. The driving gear 404 is fixedly installed on the driving rod 1, and the two first transmission rods 402 are fixedly installed with a driven gear 403, wherein the top and the bottom of the driving gear 404 are respectively meshed and connected with the outside of the two driven gears 403, and the ends of the two first transmission rods 402 extending to the left side of the stern box 3 are provided with a plurality of first Cutting blade 405, when the driving rod 1 rotates autonomously, the driving gear 404 fixedly installed on the rod body can drive the two meshing driven gears 403 to move, and the movement of the driven gear 403 will cause the first transmission rod 402 to rotate. At the same time, the two first bearings 401 connected to the outer wall of the first transmission rod 402 can provide strong stability for the rod, so that the rod can rotate stably, and the multiple first cutting blades 405 installed on the rod wall can clean and crush the fishing nets or weeds entangled on the driving rod 1 through the stable rotation of the first transmission rod 402, thereby improving the protection of the overall structure and effectively ensuring the operation safety of the ship.

[0023] In the case implementation, the second cutting mechanism 5 includes two sets of second bearings 501 and two waterproof motors 504. Two sets of second bearings 501 are fixedly installed inside the propeller seat 2, with two second bearings 501 in each set. The inner walls of both sets of second bearings 501 are fixedly connected to second transmission rods 502. Two second cutting blades 503 are arranged on each of the two second transmission rods 502. Two waterproof motors 504 are arranged on the left side of the propeller seat 2. The output shafts of the two waterproof motors 504 are respectively fixedly connected to the two second transmission rods 502. Thus, when the propeller seat 2 and the propeller blade 6 are entangled with fishing nets or weeds, through the cooperation of the output end of the waterproof motor 504 and the two second bearings 501, the second transmission rod 502 rotates stably, and at the same time, the two second cutting blades 503 on its rod body will also rotate stably. Two activity slots adapted to the second cutting blades 503 are respectively opened at the top and bottom of the propeller seat 2. At this time, the exposed end of the second cutting blade 503 can cut and clean the fishing nets or weeds entangled on the propeller seat 2 and the propeller blade 6, preventing the propeller seat 2 and the propeller blade 6 from stopping running due to the entanglement of fishing nets or weeds, and greatly improving the safety of the ship during operation.

[0024] In the case implementation, a propeller blade 6 is fixedly installed on the propeller seat 2. A conical sheath 7 is fixedly connected to the right side of the propeller seat 2. An anti-entanglement blade group 8 is arranged outside the conical sheath 7. The anti-entanglement blade group 8 is composed of longitudinal blades and transverse blades, which can effectively prevent fishing nets or weeds from entangling the drive rod 1 and further improve the safety of the overall structure.

[0025] In the case implementation, the outside of the stern tube 3 is fixedly connected to the hull, enabling the stern tube 3 to maintain a fixed state. Third bearings are fixedly installed on the inner walls of the left and right sides of the stern tube 3. The outer wall of the drive rod 1 is fixedly connected to the inner walls of the two third bearings, making the drive rod 1 have strong stability during rotation.

[0026] During implementation, the following steps are carried out for operation:

[0027] 1) First, drive the drive rod 1 to rotate through the engine on the inner wall of the ship.

[0028] 2) Then, the driving gear 404 on the drive rod 1 can drive the two meshed driven gears 403 to move.

[0029] 3) Next, through the cooperation of the driven gear 403 and the two first bearings 401, the first transmission rod 402 rotates stably.

[0030] 4) Finally, multiple first cutting blades 405 can clean and crush the fishing nets or weeds entangled on the drive rod 1 through the stable rotation of the first transmission rod 402.

[0031] In summary, the anti-fishing net entanglement structure of the ship propeller is provided with a first cutting mechanism 4. When the driving rod 1 rotates autonomously, the driving gear 404 fixedly installed on the rod body can drive the two meshing driven gears 403 to move, and the movement of the driven gear 403 will cause the first transmission rod 402 to rotate. At the same time, the two first bearings 401 connected to the outer wall of the first transmission rod 402 can provide strong stability for the rod, so that the rod can rotate stably, and the multiple first cutting blades 405 installed on the rod wall can clean and crush the fishing nets or weeds entangled on the driving rod 1 through the stable rotation of the first transmission rod 402, thereby improving the protection of the overall structure, and can effectively ensure the operation safety of the ship, and solve the problem that due to the gap between the first blade edge and the second blade edge on the patent, some fishing nets or weeds that have not been cut off will drill into the transmission rod. If there are too many fishing nets or weeds gathered on the transmission rod, it will still affect the operation of the propeller, and in serious cases, it may also cause dangerous accidents.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fishing net entanglement structure for a ship's propeller, comprising a driving rod (1), characterized in that: On the left side of the driving rod (1), a propeller seat (2) is fixedly installed. On the right side of the driving rod (1), a stern tube housing (3) is connected. Inside the stern tube housing (3), a first cutting mechanism (4) is arranged. Inside the propeller seat (2), a second cutting mechanism (5) is arranged; The first cutting mechanism (4) includes two groups of first bearings (401) and an active gear (404). Two groups of first bearings (401) are fixedly installed inside the stern tube housing (3). An active gear (404) is fixedly installed on the driving rod (1). The inner walls of the two groups of first bearings (401) are fixedly connected to first transmission rods (402) extending to the outside of the left side of the stern tube housing (3). On each of the two first transmission rods (402), a driven gear (403) is fixedly installed. At one end of each of the two first transmission rods (402) extending to the outside of the left side of the stern tube housing (3), a plurality of first cutting blades (405) are arranged.

2. The anti-fishing net entanglement structure of a ship propeller according to claim 1, characterized in that: The second cutting mechanism (5) includes two groups of second bearings (501) and two waterproof motors (504). Two groups of second bearings (501) are fixedly installed inside the propeller seat (2). The inner walls of the two groups of second bearings (501) are fixedly connected to second transmission rods (502). On each of the two second transmission rods (502), two second cutting blades (503) are arranged. On the left side of the propeller seat (2), two waterproof motors (504) are arranged.

3. The anti-fishing net entanglement structure of a ship propeller according to claim 1, characterized in that: The top and bottom of the active gear (404) are respectively meshed and connected to the outside of the two driven gears (403).

4. The anti-fishing net entanglement structure of a ship propeller according to claim 2, characterized in that: The output shafts of the two waterproof motors (504) are respectively fixedly connected to the two second transmission rods (502). On the top and bottom of the propeller seat (2), two activity slots adapted to the second cutting blades (503) are opened.

5. The anti-fishing net entanglement structure of a ship propeller according to claim 1, characterized in that: On the propeller seat (2), a propeller blade (6) is fixedly installed. On the right side of the propeller seat (2), a conical sheath (7) is fixedly connected. On the outside of the conical sheath (7), an anti-winding blade group (8) is arranged.

6. The anti-fishing net entanglement structure of a ship's propeller according to claim 1, characterized in that: The outside of the stern tube housing (3) is fixedly connected to the hull. On the left and right inner walls of the stern tube housing (3), third bearings are fixedly installed. The outer wall of the driving rod (1) is fixedly connected to the inner walls of the two third bearings.

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