Inland marine vessel podded electric propulsion

Abstract

The utility model belongs to the field of ship power and propulsion system technology, specifically speaking is the river ship pod type electric propulsion device, including hollow shaft, the hollow shaft end portion sleeve fit connection has the conductive slip ring, through the orderly connection of hollow shaft and conductive slip ring, servo motor turntable, propulsion motor, fixed bolster, reach integration, solved the transmission of electric energy, control signal, monitoring alarm signal, simultaneously this pod type electric propulsion device can realize 360 degree rotation, can make the ship in the long waterway, port terminal etc. Limited water area realizes the complex control such as spot turning, transverse movement, oblique navigation, pod type electric propulsion device can be installed integrally to the ship, and the disassembly is convenient, improves the maintenance efficiency, and the device adopts direct drive mode, avoids the energy loss of mechanical drive, and the economic operation of the ship is convenient, and through cutting device, the entanglement is avoided in time, and the power is suddenly lost, and the ship control property is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of marine power and propulsion system technology, specifically the podded electric propulsion device for inland waterway vessels. Background Technology

[0002] Inland waterway vessels refer to all types of ships and small boats that are specifically designed for navigation or operation in inland waters (such as rivers, lakes, and reservoirs). Their design and function are closely based on the characteristics of the inland waterway environment (such as channel width, water depth, water flow speed, and navigation conditions), and they are widely used in transportation, fishing operations, sightseeing tourism, water conservancy projects, emergency rescue, and other fields.

[0003] The podded electric propulsion system for inland waterway vessels mainly consists of an electric motor, a propeller, a thruster, a control system, and a pod structure. The pod structure is the core component, receiving commands from the ship's bridge and precisely controlling the operation of the electric motor and the rotation angle of the pod according to the ship's navigation status and environmental conditions.

[0004] Currently, after long-term observation and application, it has been found that inland waterways often contain floating debris such as water plants, water hyacinths, and abandoned fishing nets. When the propeller rotates, the blades generate thrust by pushing water, creating a low-pressure area in front of them and generating an axial suction flow. Floating debris in the water is "absorbed" by the suction flow onto the propeller disk, causing the blades to jam (lock up), resulting in the vessel losing power. Therefore, a podded electric propulsion device for inland waterway vessels is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a podded electric propulsion device for inland waterway vessels.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The inland waterway vessel podded electric propulsion device of this utility model includes a hollow rotating shaft; a conductive slip ring is sleeved and connected to the end of the hollow rotating shaft; a servo electric turntable and a fixed bracket are sleeved and connected to the middle of the hollow rotating shaft; a propulsion motor is fixedly connected to the bottom end of the hollow rotating shaft; a propeller is provided at the output end of the propulsion motor; a fixed frame is symmetrically fixedly connected to the side wall of the propulsion motor; an extension column is fixedly connected to the side wall of the fixed frame; a drive motor is fixedly connected to the inner side wall of the extension column; a rotary cutter head is fixedly connected to the output end of the drive motor; and blades are provided on the side wall of the rotary cutter head.

[0007] Preferably, a sealing sleeve is fixedly connected to the side wall of the rotary cutter head; an air inflator is fixedly connected to the inner side wall of the sealing sleeve; an air collection box is provided at the output end of the air inflator; multiple sets of paint spraying pipes are connected through the side wall of the air collection box; the paint spraying pipes are arranged in a circumferential array.

[0008] Preferably, a fixed disk is fixedly connected to the middle of the hollow rotating shaft; a first sliding disk and a second sliding disk are slidably connected to the middle of the hollow rotating shaft; the fixed disk is connected to the first sliding disk and the second sliding disk through a first spring assembly.

[0009] Preferably, the rotary cutter head has multiple sets of guide grooves on its side wall; a fixing rod is fixedly connected to the side wall of the guide groove; and a rotating guide block is rotatably connected to the side wall of the fixing rod.

[0010] Preferably, the rotary cutter head has a sliding groove on its side wall; a second spring assembly is symmetrically fixed to the side wall of the sliding groove; the second spring assembly is fixedly connected to the blade; and the blade is slidably connected to the side wall of the sliding groove.

[0011] Preferably, the sidewall of the rotary cutter head has multiple flow holes.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a podded electric propulsion device for inland waterway vessels. Through the integrated design of a hollow shaft and a rotating cutterhead, the hollow shaft is connected to a conductive slip ring, a servo motor turntable, a propulsion motor, and a fixed bracket, achieving a unified system. This solves the transmission problems of electrical energy, control signals, and monitoring alarm signals. The podded electric propulsion device can achieve 360° rotation, enabling vessels to perform complex maneuvers such as turning in place, lateral movement, and diagonal navigation in confined waterways like narrow waterways and ports. The integrated design increases the usable space inside the vessel, increasing cargo capacity, improving economic efficiency, reducing vibration and noise, and enhancing the comfort of crew and passengers. It also eliminates oil and exhaust emissions, reducing environmental pollution. The podded electric propulsion device can be installed as a whole on the vessel, facilitating disassembly and improving maintenance efficiency. The device uses a direct drive method, avoiding energy loss from mechanical transmission and promoting economical vessel operation. Furthermore, the cutting device continuously shreds entangled materials to prevent sudden power loss and ensure vessel maneuverability.

[0014] This utility model provides a podded electric propulsion device for inland waterway vessels. By using an air inflator and a jet pipe, and by installing a jet device behind the rotating cutter disc, the broken floating debris can be ejected out of the effective range of the rotating cutter disc, thereby reducing the volume of floating debris in that range, thus reducing the impact on the propeller's operation and improving the propeller's working efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the fixing frame in this utility model;

[0019] Figure 3 This is a perspective view of the air inflator in this utility model;

[0020] Figure 4 This is a perspective view of the flow divider hole in this utility model;

[0021] Figure 5 This is a perspective view of the fixed plate in this utility model;

[0022] Figure 6 yes Figure 4 Enlarged view of point A.

[0023] Legend:

[0024] 1. Hollow rotating shaft; 11. Conductive slip ring; 12. Servo motor turntable; 13. Fixed bracket; 14. Propulsion motor; 15. Propeller; 16. Fixed frame; 17. Extension column; 18. Drive motor; 19. Rotary cutter head; 101. Blade; 2. Sealing sleeve; 21. Air inflator; 22. Air collection box; 23. Paint spray pipe; 3. Fixed plate; 31. First sliding plate; 32. Second sliding plate; 33. First spring assembly; 4. Guide groove; 41. Fixed rod; 42. Rotating guide block; 5. Slide groove; 51. Second spring assembly; 6. Diverting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figure 1 , Figure 2 , Figure 3This utility model provides a podded electric propulsion device for inland waterway vessels, including a hollow shaft 1; characterized in that: a conductive slip ring 11 is sleeved and connected to the end of the hollow shaft 1; a servo motor turntable 12 and a fixed bracket 13 are sleeved and connected to the middle of the hollow shaft 1; a propulsion motor 14 is fixedly connected to the bottom end of the hollow shaft 1; a propeller 15 is provided at the output end of the propulsion motor 14; a fixed frame 16 is symmetrically fixedly connected to the side wall of the propulsion motor 14; an extension column 17 is fixedly connected to the side wall of the fixed frame 16; a drive motor 18 is fixedly connected to the inner side wall of the extension column 17; a rotary cutter head 19 is fixedly connected to the output end of the drive motor 18; the rotary cutter head... 19. Blades 101 are provided on the side wall. During operation, the device is assembled from top to bottom around the hollow rotating shaft 1, with the conductive slip ring 11, servo motor turntable 12, fixed bracket 13, and propulsion motor 14 as the center. Power and control signals are introduced to the servo motor turntable 12 and propulsion motor 14 through the conductive slip ring 11. Simultaneously, energy is provided by an external high-density energy battery. The servo motor turntable 12 controls the propulsion motor 14 to rotate 360°, precisely controlling the boat's course. The propulsion motor 14 controls the boat's speed. Furthermore, the propulsion motor 14 employs permanent magnet synchronous motor technology and efficiently controls the propeller 15 through frequency conversion technology. The rotation speed is controlled to regulate the speed of the boat. During operation, the drive motor 18 drives the blades 101 to rotate at high speed via the rotating cutter head 19, thereby cutting and shredding floating debris such as water plants, water hyacinths, and discarded fishing nets within the propeller 15 area. This cleans the operating environment within the propeller 15 area. This design achieves integration by connecting the hollow rotating shaft with the conductive slip ring, servo motor turntable, propulsion motor, and fixed bracket, solving the transmission of electrical energy, control signals, and monitoring alarm signals. Furthermore, this podded electric propulsion device can achieve 360° rotation, enabling the boat to navigate narrow waterways. This vessel enables complex maneuvers such as turning on the spot, lateral movement, and diagonal navigation in restricted waterways like waterways and ports. Its integrated design increases usable space inside the vessel, allowing for greater cargo capacity and improved economic efficiency. It also reduces vibration and noise, enhancing the comfort of crew and passengers. Furthermore, it eliminates oil and exhaust emissions, reducing environmental pollution. The podded electric propulsion system can be installed as a whole on the vessel, facilitating easy disassembly and maintenance. The direct drive system avoids energy loss from mechanical transmission, promoting economical vessel operation. Simultaneously, a cutting device continuously shreds entangled materials to prevent sudden power loss and ensure vessel maneuverability.

[0028] Furthermore, such as Figure 3As shown, a sealing sleeve 2 is fixedly connected to the side wall of the rotary cutter head 19; an air inflator 21 is fixedly connected to the inner side wall of the sealing sleeve 2; an air collection box 22 is provided at the output end of the air inflator 21; multiple sets of paint spraying pipes 23 are connected through the side wall of the air collection box 22; the paint spraying pipes 23 are arranged in a circumferential array; during operation, gas is generated by starting the air inflator 21 and delivered to the inside of the air collection box 22. When the air collection box 22 is full of gas, it is sprayed out through the paint spraying pipes 23. The sprayed gas can spray the floating objects such as water plants, water hyacinths, and discarded fishing nets that have been broken up by the rotary blades out of the effective range of the rotary blades, reducing the amount of floating objects accumulated in this range. This design, by setting an air jet device behind the rotary cutter head, can spray the broken floating objects out of the effective range of the rotary cutter head, thereby reducing the volume of floating objects in this range, thus reducing the impact on the propeller operation and improving the working efficiency of the propeller.

[0029] Furthermore, such as Figure 5 As shown, a fixed disk 3 is fixedly connected to the middle of the hollow shaft 1; a first sliding disk 31 and a second sliding disk 32 are slidably connected to the middle of the hollow shaft 1; the fixed disk 3 is connected to the first sliding disk 31 and the second sliding disk 32 through a first spring assembly 33; during operation, when the propulsion motor 14 drives the propeller 15 to rotate, vibration is generated. The generated vibration is transmitted upward through the hollow shaft 1 to the fixed bracket 13, and then transmitted to the boat through the fixed bracket 13, causing the boat to vibrate. During the transmission process through the hollow shaft 1, the fixed disk 3, the first sliding disk 31, and the second sliding disk 32 will jointly receive the vibration. At this time, the first sliding disk 31... The first sliding plate 31 and the second sliding plate 32 will slide due to vibration. During the sliding process of the first sliding plate 31 and the second sliding plate 32, the first spring assembly 33 will be stretched. Through the elastic restriction of the first spring assembly 33, the first sliding plate 31 and the second sliding plate 32 will be pulled, so that the first sliding plate 31 and the second sliding plate 32 will perform reciprocating up and down sliding motion in the water. With the resistance of the water, the vibration effect can be gradually reduced, thereby reducing the vibration force transmitted to the fixed support 13. This design, through the setting of the elastic buffer device, can reduce the vibration force transmitted to the fixed support during the reciprocating up and down sliding process, in conjunction with the resistance of the water, thereby reducing the vibration effect on the boat.

[0030] Furthermore, such as Figure 6As shown, the rotating cutter head 19 has multiple sets of guide grooves 4 on its side wall; a fixed rod 41 is fixedly connected to the side wall of the guide groove 4; a rotating guide block 42 is rotatably connected to the side wall of the fixed rod 41; during operation, when the boat is gliding by the propeller, the gliding force will drive the rotating guide block 42 to rotate. When the multiple sets of rotating guide blocks 42 on the side wall of the rotating cutter head 19 rotate together, they will generate a propulsion force for the rotating cutter head 19, which will cancel out the water resistance experienced by the rotating cutter head 19. This design can reduce the impact of the resistance generated by the rotating cutter head on the operation of the boat by canceling out the resistance experienced by the rotating cutter head.

[0031] Furthermore, such as Figure 6 As shown, the rotary cutter head 19 has a sliding groove 5 on its side wall; a second spring assembly 51 is symmetrically fixed to the side wall of the sliding groove 5; the second spring assembly 51 is fixedly connected to the blade 101; the blade 101 is slidably connected to the side wall of the sliding groove 5; during operation, when the rotary cutter head 19 drives the blade 101 to rotate and cut and crush floating objects, a resistance force is generated when the blade 101 comes into contact with the floating object. By elastically sliding the blade 101, when the resistance force is generated, the blade 101 will slide a certain distance into the sliding groove 5 and compress the second spring assembly 51. Then, the rebound force of the second spring assembly 51 can push the blade 101 to extend forward. Since the length of the sliding groove 5 is relatively short, it will not affect the rotation and cutting of the blade 101. This design reduces the resistance force on the blade by adaptively extending and retracting the blade, thereby reducing the impact of the resistance force on the rotary cutter head and improving the operating stability of the rotary cutter head.

[0032] Furthermore, such as Figure 4 As shown, the rotating cutter head 19 has multiple flow holes 6 on its side wall. During operation, the water flow can pass through the multiple flow holes 6 as the rotating cutter head 19 slides, thereby reducing the resistance when the rotating cutter head 19 slides. This design reduces the impact of the resistance generated by the rotating cutter head on the operation of the boat by reducing the resistance when the rotating cutter head slides.

[0033] Working Principle: This device is centered on a hollow rotating shaft, assembling a conductive slip ring, servo motor turntable, fixed bracket, and propulsion motor from top to bottom. Power and control signals are introduced to the servo motor turntable and propulsion motor through the conductive slip ring. Energy is provided by an external high-density battery. The servo motor turntable controls the propulsion motor to rotate 360°, precisely controlling the boat's course. The propulsion motor controls the boat's speed. Utilizing permanent magnet synchronous motor technology, the propulsion motor efficiently controls the propeller speed through frequency conversion technology, thereby controlling the boat's speed. During boat operation, the drive motor drives the rotating cutter head to rotate the blades at high speed. This allows for the cutting and shredding of floating debris such as water plants, water hyacinths, and discarded fishing nets within the propeller's range, thus cleaning the operating environment in that area. Gas is generated by starting the air compressor and delivered to the air collection box. Once the box is full, the gas is sprayed out through the spray nozzle. This sprayed gas removes the shredded water plants, water hyacinths, and discarded fishing nets from the rotating blades' effective range, reducing the accumulation of floating debris in that area. When the propulsion motor drives the propeller to rotate, vibrations are generated. These vibrations are transmitted upwards through the hollow shaft to the fixed support, and then through the fixed support to the boat, causing vibrations on the boat. During the process, the fixed disk, the first sliding disk, and the second sliding disk jointly receive the vibration. At this time, the first and second sliding disks slide due to the vibration. During this sliding process, the first spring assembly is stretched. Through the elastic constraint of the first spring assembly, the first and second sliding disks are pulled, causing them to reciprocate up-and-down sliding motion in the water. Combined with the water resistance, this gradually reduces the vibration effect, thereby reducing the vibration force transmitted to the fixed support. During the propeller-driven gliding of the boat, the gliding force drives the rotating guide blocks to rotate. When multiple sets of rotating guide blocks on the side wall of the rotary cutterhead move together... When the rotating disc rotates, it generates a propulsive force that counteracts the water resistance. As the rotating disc drives the blades to cut and break up floating objects, a counterforce is generated when the blades first come into contact with the objects. By elastically sliding the blades, when the counterforce is generated, the blades slide a certain distance into the groove and compress the second spring assembly. The rebound force of the second spring assembly then pushes the blades forward. Since the groove is relatively short, it does not affect the rotation and cutting of the blades. During the sliding of the rotating disc, the multi-component flow holes allow water to flow through them, thereby reducing the resistance during the sliding of the rotating disc.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A podded electric propulsion device for inland waterway vessels, comprising a hollow rotating shaft (1); characterized in that: A conductive slip ring (11) is fitted to the end of the hollow shaft (1); a servo electric turntable (12) and a fixed bracket (13) are fitted to the middle of the hollow shaft (1); a propulsion motor (14) is fixed to the bottom of the hollow shaft (1); a propeller (15) is provided at the output end of the propulsion motor (14); a fixed frame (16) is symmetrically fixed to the side wall of the propulsion motor (14); an extension column (17) is fixed to the side wall of the fixed frame (16); a drive motor (18) is fixed to the inner side wall of the extension column (17); a rotary cutter head (19) is fixed to the output end of the drive motor (18); and a blade (101) is provided on the side wall of the rotary cutter head (19).

2. The podded electric propulsion device for inland waterway vessels as described in claim 1, characterized in that: A sealing sleeve (2) is fixedly connected to the side wall of the rotary cutter head (19); an air compressor (21) is fixedly connected to the inner side wall of the sealing sleeve (2); an air collection box (22) is provided at the output end of the air compressor (21); multiple sets of paint spraying pipes (23) are connected through the side wall of the air collection box (22); the paint spraying pipes (23) are arranged in a circumferential array.

3. The podded electric propulsion device for inland waterway vessels as described in claim 1, characterized in that: A fixed disk (3) is fixedly connected to the middle of the hollow rotating shaft (1); a first sliding disk (31) and a second sliding disk (32) are slidably connected to the middle of the hollow rotating shaft (1); the fixed disk (3), the first sliding disk (31), and the second sliding disk (32) are connected by a first spring assembly (33).

4. The podded electric propulsion device for inland waterway vessels as described in claim 1, characterized in that: The rotary cutter head (19) has multiple sets of guide grooves (4) on its side wall; a fixed rod (41) is fixedly connected to the side wall of the guide groove (4); a rotating guide block (42) is rotatably connected to the side wall of the fixed rod (41).

5. The podded electric propulsion device for inland waterway vessels as described in claim 1, characterized in that: The rotary cutter head (19) has a sliding groove (5) on its side wall; a second spring assembly (51) is symmetrically fixed to the side wall of the sliding groove (5); the second spring assembly (51) is fixedly connected to the blade (101); and the blade (101) is slidably connected to the side wall of the sliding groove (5).

6. The podded electric propulsion device for inland waterway vessels as described in claim 1, characterized in that: The rotating cutter head (19) has multiple flow holes (6) on its side wall.

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