Bidirectional multi-stage underwater propeller

Abstract

The utility model relates to the technical field of ship propulsion, and discloses a bidirectional multi-stage underwater propeller which comprises a connecting piece, a first bolt head is rotationally connected in the connecting piece, a worm is fixedly connected to one side of the outer wall of the first bolt head, a worm gear is rotationally connected in the connecting piece, the worm gear is meshed with the worm, and the first bolt head and the second bolt head are fixedly connected to one side of the outer wall of the first bolt head. A first straight gear is fixedly connected to one side of the outer wall of the first straight gear, a second straight gear is fixedly connected to one side of the outer wall of the first straight gear, a first limiting block is slidably connected into the connecting piece, a toothed plate is fixedly connected to one side of the outer wall of the first limiting block, the toothed plate is meshed with the second straight gear, and a connecting shaft is slidably connected to the outer wall of the first limiting block. According to the two-way multi-stage underwater propeller, the effect that the propeller can be disassembled and assembled more conveniently is achieved, the problems that when an existing two-way multi-stage underwater propeller is used for installing the propeller, an operator needs to use a special tool, and the disassembling and assembling steps are complex are solved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship propulsion, in particular to a two-way multi-stage underwater thruster. Background Technique

[0002] With the rapid development of fields such as marine resource development, scientific research, underwater engineering, national defense security, and recreational diving, higher requirements are put forward for the performance and functions of underwater vehicles, especially for the high maneuverability, high efficiency, high reliability, precise control, and adaptability of underwater operations. Therefore, the two-way multi-stage underwater thruster emerges as the times require. This kind of thruster can not only provide bidirectional propulsion force to achieve flexible operation of forward and backward movement, but also adjust the magnitude of the propulsion force according to different task requirements and underwater environmental conditions through the multi-stage adjustment function, thereby improving the operation efficiency and safety.

[0003] The two-way multi-stage underwater thruster mainly consists of parts such as a motor, a propeller, a control unit, and a housing. It drives the propeller to rotate through the motor to generate thrust and push the underwater vehicle forward or backward. The rotation direction and speed of the propeller can be precisely controlled by the control unit to achieve bidirectional propulsion. The multi-stage adjustment function is realized by changing the power output of the motor or the rotation speed of the propeller, so as to provide different levels of propulsion force in different underwater operation environments. The design of this kind of thruster enables the underwater vehicle to flexibly adjust the propulsion force according to task requirements and achieve precise control.

[0004] However, when installing the propeller of the existing two-way multi-stage underwater thruster, operators need to use special tools and perform complex disassembly and installation steps. This not only increases the maintenance cost but also causes damage to the propeller during disassembly, affecting the performance and reliability of the thruster. For this reason, a two-way multi-stage underwater thruster is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a two-way multi-stage underwater thruster, aiming to improve the problem that when installing the propeller of the existing two-way multi-stage underwater thruster, operators need to use special tools and the disassembly and installation steps are relatively complex.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A two-way multi-stage underwater thruster, including a connecting piece, inside which a bolt head one is rotatably connected. On one side of the outer wall of the bolt head one, a worm is fixedly connected. Inside the connecting piece, a worm gear is rotatably connected. The worm gear meshes with the worm. Inside the connecting piece, a toothed ring is rotatably connected. The toothed ring meshes with the worm gear. Inside the connecting piece, a spur gear one is rotatably connected. The spur gear one meshes with the toothed ring. On one side of the outer wall of the spur gear one, a spur gear two is fixedly connected. Inside the connecting piece, a limiting block one is slidably connected. On one side of the outer wall of the limiting block one, a toothed plate is fixedly connected. The toothed plate meshes with the spur gear two. On the outer walls of the limiting block one, connecting shafts are slidably connected. On the outer walls of the connecting shafts, propellers are fixedly connected. On one side of the outer wall of the connecting piece, a flow guiding component is arranged, and the flow guiding component is used for guiding the flow;

[0007] As a further description of the above technical solution: The flow guiding component includes an upper flow guiding cover and a lower flow guiding cover. The upper flow guiding cover is fixedly connected to the outer wall of the connecting piece inside, and the bottom of the upper flow guiding cover is rotatably connected to the top of the lower flow guiding cover;

[0008] As a further description of the above technical solution: Inside the lower flow guiding cover, a bolt head two is rotatably connected. On one side of the outer wall of the bolt head two, a bevel gear one is fixedly connected;

[0009] As a further description of the above technical solution: Inside the lower flow guiding cover, a fixed block is fixedly connected. Inside the fixed block, a lead screw is rotatably connected. Inside the upper flow guiding cover, a limiting block two is slidably connected. On the outer walls of the limiting block two, connecting blocks are slidably connected. The bottoms of the connecting blocks are fixedly connected to the top of the lower flow guiding cover;

[0010] As a further description of the above technical solution: On one side of the outer wall of the lead screw, a bevel gear two is fixedly connected. The bevel gear one meshes with the bevel gear two;

[0011] As a further description of the above technical solution: A slider is threadedly connected to the outer wall of the lead screw;

[0012] As a further description of the above technical solution: On both sides of the outer wall of the slider, a transmission rod one is rotatably connected. On one side of the outer wall of the limiting block two, a transmission rod three is rotatably connected;

[0013] As a further description of the above technical solution: Inside the transmission rod one, a transmission rod two is rotatably connected. On both sides of the outer wall of the transmission rod two, they are rotatably connected inside the transmission rod three.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present utility model, through the cooperation among the first bolt head, the worm, the worm gear, the toothed ring, the first gear, the second gear, the limiting block and the toothed plate, the effect that the propeller can be disassembled and installed more conveniently is achieved, solving the problem that when installing the propeller of the existing bidirectional multi-stage underwater thruster, the operator needs to use special tools and the disassembly and installation steps are relatively complex, and improving the work efficiency.

[0016] 2. In the present utility model, through the cooperation among the second bolt head, the first bevel gear, the second bevel gear, the lead screw, the fixed block, the slider, the first transmission rod, the second transmission rod, the third transmission rod, the second limiting block and the connecting block, the effect that the upper fairing and the lower fairing can be opened more quickly, facilitating the maintenance personnel to more efficiently inspect and repair the propeller is achieved, solving the problem that disassembling the upper fairing and the lower fairing requires a large amount of time and manpower for separation and reinstallation, which not only increases the maintenance cost but also may lead to an extended downtime during the operation process, and improving the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of a bidirectional multi-stage underwater thruster proposed by the present utility model;

[0018] Figure 2 is a schematic diagram of the connecting block structure of a bidirectional multi-stage underwater thruster proposed by the present utility model;

[0019] Figure 3 is a schematic diagram of the first gear structure of a bidirectional multi-stage underwater thruster proposed by the present utility model;

[0020] Figure 4 is a schematic diagram of the second limiting block structure of a bidirectional multi-stage underwater thruster proposed by the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Connecting piece; 2. Connecting shaft; 3. Propeller; 4. First bolt head; 5. Worm; 6. Worm gear; 7. Toothed ring; 8. First straight gear; 9. Second straight gear; 10. First limiting block; 11. Upper fairing; 12. Lower fairing; 13. Second bolt head; 14. First bevel gear; 15. Second bevel gear; 16. Lead screw; 17. Fixed block; 18. Slider; 19. First transmission rod; 20. Second transmission rod; 21. Third transmission rod; 22. Second limiting block; 23. Connecting block; 24. Toothed plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Referring to Figure 1 - Figure 3 , an embodiment provided by the present invention: a two-way multi-stage underwater thruster, including a connecting member 1. Inside the connecting member 1, a bolt head one 4 is rotatably connected. On one side of the outer wall of the bolt head one 4, a worm 5 is fixedly connected. Inside the connecting member 1, a worm gear 6 is rotatably connected. The worm gear 6 meshes with the worm 5. Inside the connecting member 1, a toothed ring 7 is rotatably connected. The toothed ring 7 meshes with the worm gear 6. Inside the connecting member 1, a spur gear one 8 is rotatably connected. The spur gear one 8 meshes with the toothed ring 7. On one side of the outer wall of the spur gear one 8, a spur gear two 9 is fixedly connected. Inside the connecting member 1, a limiting block one 10 is slidably connected. On one side of the outer wall of the limiting block one 10, a toothed plate 24 is fixedly connected. The toothed plate 24 meshes with the spur gear two 9. On the outer walls of the limiting block one 10, connecting shafts 2 are slidably connected. On the outer wall of the connecting shaft 2, a propeller 3 is fixedly connected. On one side of the outer wall of the connecting member 1, a flow guiding assembly is provided, and the flow guiding assembly is used for the flow guiding function;

[0025] Specifically, when installing the propeller 3 of the two-way multi-stage underwater thruster, it is first necessary to ensure the precise alignment of the connecting shaft 2 and the connecting member 1. This is a crucial step to ensure that the propeller 3 can be correctly installed and perform at its best. Then, the operator will use a special tool to rotate the bolt head one 4. This action will trigger a series of precise mechanical linkages. The rotation of the bolt head one 4 drives the worm 5 to start rotating. The rotation of the worm 5 transmits the rotational force to the worm gear 6 through its meshing with the worm gear 6, causing the worm gear 6 to move axially. The movement of the worm gear 6 will drive the toothed ring 7 to rotate. It should be noted that there are teeth on both the outer wall and the inside of the toothed ring 7. Therefore, the rotation of the toothed ring 7 transmits the rotational force to the spur gear one 8 through its meshing with the spur gear one 8. The rotation of the spur gear one 8 further drives the spur gear two 9 to rotate. The spur gear two 9 converts the rotational force into the downward movement of the limiting block one 10 through its meshing with the toothed plate 24. The downward movement of the limiting block one 10 finally fixes the connecting shaft 2, ensuring the tight connection between the propeller 3 and the thruster main body and completing the installation process. This series of precise mechanical linkages not only ensures the stable installation of the propeller 3 but also ensures the high-efficiency and reliable performance of the thruster during underwater operation.

[0026] Referring to Figure 1 - Figure 3, the flow guiding assembly includes an upper flow guiding cover 11 and a lower flow guiding cover 12. The inside of the upper flow guiding cover 11 is fixedly connected to the outer wall of the connecting member 1, and the bottom of the upper flow guiding cover 11 is rotatably connected to the top of the lower flow guiding cover 12;

[0027] Specifically, when using this two-way multi-stage underwater thruster, its upper flow guiding cover 11 and lower flow guiding cover 12 enable the water flow to pass through the propeller 3 more smoothly. The upper flow guiding cover 11 and the lower flow guiding cover 12 can reduce water turbulence and eddy currents, enabling the propeller 3 to more effectively push the underwater vehicle forward.

[0028] Refer to Figure 1 - Figure 4 , a second bolt head 13 is rotatably connected inside the lower flow guiding cover 12. On one side of the outer wall of the second bolt head 13, a first bevel gear 14 is fixedly connected. A fixed block 17 is fixedly connected inside the lower flow guiding cover 12. A lead screw 16 is rotatably connected inside the fixed block 17. A second limiting block 22 is slidably connected inside the upper flow guiding cover 11. Connecting blocks 23 are slidably connected to the outer walls of the second limiting blocks 22. The bottoms of the connecting blocks 23 are fixedly connected to the top of the lower flow guiding cover 12. On one side of the outer wall of the lead screw 16, a second bevel gear 15 is fixedly connected. The first bevel gear 14 meshes with the second bevel gear 15. A slider 18 is threadedly connected to the outer wall of the lead screw 16. On both sides of the outer wall of the slider 18, a first transmission rod 19 is rotatably connected. On one side of the outer wall of the second limiting block 22, a third transmission rod 21 is rotatably connected. A second transmission rod 20 is rotatably connected inside the first transmission rod 19. On both sides of the outer wall of the second transmission rod 20, they are rotatably connected inside the third transmission rod 21;

[0029] Specifically, during the daily maintenance and inspection of the propeller 3 in the two-way multi-stage underwater thruster, the operator starts the entire inspection process by rotating the second bolt head 13. The rotation of the second bolt head 13 drives the first bevel gear 14 to start rotating, and the rotation of the first bevel gear 14 is further transmitted to the second bevel gear 15, causing it to rotate. The rotation of the second bevel gear 15 is the key to the entire disassembly process because it drives the rotation of the lead screw 16. The rotation of the lead screw 16 causes the slider 18 to descend along its axis. The descending movement of the slider 18 is transmitted through the first transmission rod 19, thereby driving the second transmission rod 20 to rotate. The rotation of the second transmission rod 20 causes the third transmission rod 21 to move under the action of force. The movement of the third transmission rod 21 ultimately causes the second limiting block 22 to disengage from the upper flow guiding cover 11, thus releasing the limit on the upper flow guiding cover 11. This series of precise mechanical actions enables the staff to easily open the lower flow guiding cover 12, thereby gaining direct access to the propeller 3. In this way, the staff can thoroughly inspect the propeller 3 to ensure its performance and reliability during underwater operation, and at the same time can promptly detect and repair any potential problems to ensure the efficient and safe operation of the underwater thruster.

[0030] Working principle: When installing the propeller 3 in the bidirectional multi-stage underwater thruster, first align the connecting shaft 2 with the connecting piece 1, and then rotate the first bolt head 4 with a tool, so that the first bolt head 4 drives the worm 5 to rotate. When the worm 5 rotates, the worm gear 6 is forced to move, and then drives the toothed ring 7 to rotate. When the toothed ring 7 rotates, it drives the first spur gear 8 to rotate. At this time, the rotation of the first spur gear 8 drives the second spur gear 9 to rotate, and then the second spur gear 9 drives the limiting block 10 to descend through the toothed plate 24, so as to fix the connecting shaft 2. At this time, the installation of the propeller 3 is completed. When inspecting and repairing the propeller 3 in the bidirectional multi-stage underwater thruster in daily life, first rotate the second bolt head 13. At this time, the second bolt head 13 drives the first bevel gear 14 to rotate, and then the first bevel gear 14 drives the second bevel gear 15 to rotate. Then the rotation of the second bevel gear 15 drives the lead screw 16 to rotate, so that the slider 18 is forced to descend. At this time, the slider 18 drives the second transmission rod 20 to rotate through the first transmission rod 19, so that the third transmission rod 21 is forced to move and drives the limiting block 22 to disengage from the upper fairing 11, so as to release the limit of the limiting block 22 on the upper fairing 11. At this time, the lower fairing 12 can be opened, which is convenient for the staff to inspect the propeller 3 inside it.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bidirectional multi-stage underwater propeller, comprising a connecting member (1), characterized in that: The connecting member (1) is internally connected to a bolt head (4) for rotation, and a worm (5) is fixedly connected to one side of the outer wall of the bolt head (4). The connecting member (1) is internally connected to a worm wheel (6), and the worm wheel (6) meshes with the worm wheel (5). The connecting member (1) is internally connected to a gear ring (7), and the gear ring (7) meshes with the worm wheel (6). The connecting member (1) is internally connected to a spur gear (8), and the spur gear (8) meshes with the gear ring (7). One side of the outer wall of gear one (8) is fixedly connected to spur gear two (9); the connecting member (1) is internally slidably connected to limit block one (10); one side of the outer wall of limit block one (10) is fixedly connected to a toothed plate (24); the toothed plate (24) is meshed with spur gear two (9); the outer wall of limit block one (10) is slidably connected to a connecting shaft (2); the outer wall of the connecting shaft (2) is fixedly connected to a propeller (3); one side of the outer wall of the connecting member (1) is provided with a flow guide component, which is used for flow guide.

2. A bidirectional multi-stage underwater propeller according to claim 1, characterized in that: The deflector assembly comprises an upper deflector cover (11) and a lower deflector cover (12); the interior of the upper deflector cover (11) is fixedly connected to the outer wall of the connecting member (1); the bottom of the upper deflector cover (11) is rotatably connected to the top of the lower deflector cover (12).

3. A bidirectional multi-stage underwater propeller according to claim 2, characterized in that: The lower air guide cover (12) is rotatably connected to a second bolt head (13) inside, and a bevel gear (14) is fixedly connected to one side of an outer wall of the second bolt head (13).

4. A bidirectional multi-stage underwater propeller according to claim 3, characterized in that: The lower air guide cover (12) is fixedly connected to a fixed block (17), the fixed block (17) is rotatably connected to a screw rod (16), the upper air guide cover (11) is slidably connected to a second limit block (22), the outer wall of the second limit block (22) is slidably connected to a connecting block (23), and the bottom of the connecting block (23) is fixedly connected to the top of the lower air guide cover (12).

5. A bidirectional multi-stage underwater propeller according to claim 4, characterized in that: One side of the outer wall of the screw rod (16) is fixedly connected with a bevel gear 2 (15), and the bevel gear 1 (14) is meshed with the bevel gear 2 (15).

6. A bidirectional multi-stage underwater propeller according to claim 5, characterized in that: The outer wall of the screw rod (16) is threadedly connected with a slider (18).

7. A bidirectional multi-stage underwater propeller according to claim 6, characterized in that: Both sides of the outer wall of the sliding block (18) are rotatably connected to a transmission rod 1 (19), and one side of the outer wall of the limiting block 2 (22) is rotatably connected to a transmission rod 3 (21).

8. A bidirectional multi-stage underwater propeller according to claim 7, characterized in that: The transmission rod 1 (19) is rotatably connected to the transmission rod 2 (20) inside, and both sides of the outer wall of the transmission rod 2 (20) are rotatably connected to the inside of the transmission rod 3 (21).

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