An electric winch for unmanned ships

Abstract

The utility model provides an unmanned ship electric winch, relate to unmanned ship underwater operation equipment technical field, solved the existing unmanned ship electric winch occupies the space big, the cable disorder and the poor dynamic working condition adaptability technical problem. The device includes mounting bracket, reel cable mechanism, drive assembly, cable arrangement mechanism and cable throwing mechanism, reel cable mechanism rotatable setting in mounting bracket, drive assembly sets up inside reel cable mechanism, drive assembly's drive end is connected with mounting bracket, cable arrangement mechanism sets up in mounting bracket, cable throwing mechanism sets up in cable arrangement mechanism's drive end. The utility model adopts the mode of built -in drive assembly to effectively reduce the winch whole's occupied space, and cable arrangement mechanism can carry out accurate cable arrangement operation according to reel cable's real -time situation, fundamentally solved the problem of cable disorder, and cable throwing mechanism can be taut cable, makes cable's throw and the collection of the collection more stable, greatly improved the adaptability of unmanned ship under dynamic working condition.

Description

Technical Field

[0001] This utility model relates to the field of underwater operation equipment for unmanned vessels, and in particular to an electric winch for unmanned vessels. Background Technology

[0002] As a core operational platform for marine exploration, underwater engineering, and environmental monitoring, unmanned surface vessels (USVs) often carry out underwater operations with remotely operated vehicles (ROVs). Electric winches are key equipment for deploying and recovering ROVs and for raising and lowering power and communication cables. Their compact structure, cable laying stability, and adaptability to operating conditions directly affect the efficiency and safety of USV operations.

[0003] Currently, most ROV cable electric winches are modified from general industrial equipment or simple stepper motor drive solutions. They generally suffer from technical defects such as large space occupation, messy cable arrangement, and poor adaptability to dynamic working conditions, making them difficult to adapt to the usage scenarios of ROVs with limited deck load space and variable navigation attitude at sea.

[0004] Existing mainstream technical solutions are mainly divided into two categories:

[0005] Industrial general-purpose winch modification: It adopts an external motor with a parallel shaft reducer to drive the drum. The motor, reducer and drum are arranged separately along the axial direction. The whole machine is long in axial dimension and tall in height. The typical external dimensions are not less than Φ300×450mm. It seriously occupies the limited installation space on the deck of the unmanned vessel and restricts the cable capacity and ROV operating radius. Its cable laying mechanism mostly uses passive friction guide wheel, without active correction and tension control capabilities. The cable is prone to problems such as slant winding, overlap and skipping.

[0006] Simple stepper motor cable laying type: Although a ball screw is introduced to realize active cable laying, it still adopts an external motor structure. The encoder is mostly a single-turn incremental type. The position data is lost after power failure and needs to be reset and recalibrated. Moreover, the cable laying mechanism can only monitor the cable laying stroke and does not have a real-time detection function for the cable entering the groove. When the unmanned vessel pitches more than 3° in the waves, the cable entering the groove tilt angle exceeds ±5°, which will cause the rope to become tangled and piled up, resulting in a decrease in cable capacity of more than 30%, and even failures such as cable jamming, cable insulation wear, and short circuit.

[0007] In summary, existing electric winches for unmanned vessels cannot simultaneously meet the requirements of compact installation, high-density cable laying, and stable deployment and retrieval under dynamic working conditions, which restricts the miniaturization and intelligent development of unmanned vessel and ROV collaborative operation systems. The industry urgently needs a dedicated electric winch that can adapt to confined spaces, provide full control over cable laying, and intelligently sense cable shape. Utility Model Content

[0008] The purpose of this utility model is to provide an unmanned marine electric winch that solves the technical problems of existing unmanned marine electric winches, such as large space occupation, disordered cable laying, and poor adaptability to dynamic working conditions. The various technical effects of the preferred technical solution among the many technical solutions provided by this utility model are detailed below.

[0009] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides an unmanned marine electric winch, including a mounting frame, a cable winding mechanism, a drive assembly, a cable laying mechanism, and a cable throwing mechanism. The cable winding mechanism is rotatably mounted on the mounting frame. The drive assembly is located inside the cable winding mechanism, and the drive end of the drive assembly is connected to the mounting frame. The cable laying mechanism is located on the mounting frame, and the cable throwing mechanism is located on the drive end of the cable laying mechanism.

[0010] Preferably, the drive assembly includes a waterproof slip ring chamber and a power chamber, with one end of the waterproof slip ring chamber extending out of the cable winding mechanism and connected to the mounting frame, and the other end connected to the power chamber.

[0011] Preferably, the power compartment includes a multi-turn absolute value servo motor.

[0012] Preferably, the cable winding mechanism includes a roller and cable baffles disposed at both ends of the roller. Both ends of the roller are rotatably connected to the mounting frame. The mounting frame is provided with end caps covering both ends of the roller. The drive assembly is disposed inside the roller and is connected to the end caps.

[0013] Preferably, the cable laying mechanism includes a cable laying drive unit, a lead screw, a lead screw nut, a guide shaft, and a movable seat. The cable laying drive unit is mounted on the mounting frame, and the lead screw is mounted on the drive end of the cable laying drive unit. The lead screw is rotatably connected to the mounting frame, and the lead screw nut is mounted on the lead screw. The cable throwing mechanism is connected to the lead screw nut via the movable seat. The guide shaft is mounted on the mounting frame, and the movable seat is slidably connected to the guide shaft.

[0014] Preferably, the system also includes two limit switches, which are respectively located near both ends of the lead screw.

[0015] Preferably, the cable throwing mechanism includes a cable throwing motor, a driving wheel, a driven wheel, and a clamping mechanism. The driving wheel is located at the drive end of the cable throwing motor. The clamping mechanism has a tendency force to drive the driven wheel toward the driving wheel. A cable hole is formed between the driving wheel and the driven wheel.

[0016] Preferably, it further includes a cable angle correction mechanism, which is disposed on the side of the cable throwing mechanism closer to the cable winding mechanism.

[0017] Preferably, the cable angle correction mechanism includes at least one set of lateral limiting rollers, at least one set of vertical limiting rollers, a swing roller, and a correction limit switch. The lateral limiting rollers and the vertical limiting rollers are sequentially arranged on one side of the cable throwing mechanism. The swing roller is arranged on the side of the vertical limiting roller away from the cable throwing mechanism via a swing shaft. There are two correction limit switches, symmetrically arranged below the swing roller. When the swing roller swings, one of the correction limit switches is exposed.

[0018] The application employs the above technical solution and has at least the following beneficial effects: In this application, the drive component is housed within the cable winding mechanism. This built-in drive component drives the cable winding mechanism to rotate, thereby achieving cable winding and unwinding. The built-in drive component effectively reduces the overall space occupied by the winch, allowing the unmanned surface vessel (USV) to make more efficient use of limited space resources. This is crucial for USVs with relatively compact spaces, providing more space for the installation and operation of other equipment. Simultaneously, reducing the space occupied also helps lower the overall weight and center of gravity of the USV, thereby improving its stability and navigation performance. Building the drive component internally effectively protects it from harsh environmental factors, extends its service life, and reduces equipment maintenance costs and failure rates.

[0019] At the same time, the cable winding mechanism ensures that the cables are neatly and orderly wound on the cable winding mechanism, fundamentally solving the problem of disordered cable winding.

[0020] The cable throwing mechanism is located on the drive end of the cable laying mechanism. The cable throwing mechanism can tighten the cable, making the cable throwing and retrieval more stable, which greatly improves the adaptability of the unmanned vessel in dynamic working conditions. Whether in a river with rapid currents or in a marine environment with large waves, it can stably and efficiently complete underwater operation tasks.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional structural schematic diagram of the unmanned marine electric winch provided in this embodiment of the utility model; Figure 2 This is a front-view three-dimensional structural schematic diagram of the unmanned marine electric winch provided in this embodiment of the utility model; Figure 3 This is a three-dimensional structural diagram of the left side of the unmanned marine electric winch provided in this embodiment of the utility model; Figure 4 This is a rear-view three-dimensional structural diagram of the unmanned marine electric winch provided in this embodiment of the utility model; Figure 5 yes Figure 1 A magnified schematic diagram of section A in the middle; Figure 6 This is a schematic diagram of the cable winding mechanism provided in an embodiment of the present invention; Figure 7 This is a cross-sectional structural schematic diagram of the cable winding mechanism provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the assembly structure of the cable winding mechanism and mounting frame provided in this embodiment of the utility model; Figure 9 This is a schematic diagram of the power compartment structure provided in an embodiment of the present utility model; Figure 10 This is a schematic cross-sectional view of the power compartment provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the waterproof slip ring chamber structure provided in this embodiment of the utility model; Figure 12 This is a cross-sectional structural diagram of the waterproof slip ring chamber provided in this embodiment of the utility model; Figure 13 This is a schematic diagram of the cable throwing mechanism and cable angle correction mechanism provided in this embodiment of the utility model; Figure 14 This is a cross-sectional structural schematic diagram of the cable throwing mechanism provided in this embodiment of the utility model; Figure 15 This is a rear-view three-dimensional structural diagram of the cable throwing mechanism and cable angle correction mechanism provided in this embodiment of the utility model.

[0024] In the diagram: 1. Mounting frame; 2. Cable winding mechanism; 3. Drive assembly; 4. Cable laying mechanism; 5. Cable throwing mechanism; 6. Waterproof slip ring chamber; 7. Power chamber; 8. Absolute value servo motor; 9. Roller; 10. Cable baffle; 11. End cap; 12. Cable laying drive unit; 13. Lead screw; 14. Lead screw nut; 15. Guide shaft; 16. Moving seat; 17. Limit switch; 18. Cable throwing motor; 19. Drive wheel; 20. Driven wheel; 21. Clamping mechanism; 22. Cable angle correction mechanism; 23. Lateral limit roller; 4. Vertical limit roller; 25. Swing roller; 26. Swing shaft; 27. Slip ring sealed chamber; 28. Rotating end cover; 29. ​​Slip ring; 30. Communication circuit board; 31. Fixed sealing cover; 32. External cable; 33. Cable connector; 34. Dynamic sealing ring; 35. Bearing; 36. Power compartment; 37. Power compartment end cover; 38. Bearing seat; 39. Baffle; 40. End cover bearing; 41. Drive wheel bearing seat; 42. Driven wheel bearing seat; 43. Smooth rod screw; 44. Spring; 45. Correction limit switch. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] A specific embodiment of this utility model provides an unmanned marine electric winch, combined with an appendix. Figure 1-4 As shown, the system mainly includes a mounting frame 1, a cable winding mechanism 2, a drive assembly 3, a cable laying mechanism 4, and a cable throwing mechanism 5. The cable winding mechanism 2 is rotatably mounted on the mounting frame 1. The drive assembly 3 is located inside the cable winding mechanism 2, and its drive end is connected to the mounting frame 1. The built-in drive assembly 3 effectively reduces the overall space occupied by the winch, allowing the unmanned surface vessel (USV) to make more rational use of limited space resources and providing more space for the installation and operation of other equipment. Simultaneously, reducing the space occupied also helps to lower the overall weight and center of gravity of the USV, thereby improving its stability and navigation performance. Furthermore, the built-in drive assembly 3 effectively protects it from harsh environmental factors, extends its service life, and reduces maintenance costs and failure rates.

[0027] Meanwhile, the cable laying mechanism 4 is installed on the mounting frame 1. The cable laying mechanism 4 can ensure that the cable is neatly and orderly wound on the cable winding mechanism 2, which fundamentally solves the problem of disordered cable laying.

[0028] The cable throwing mechanism 5 is located on the drive end of the cable laying mechanism 4. The cable throwing mechanism 5 can tighten the cable, making the cable throwing and retrieval more stable, which greatly improves the adaptability of the unmanned vessel in dynamic working conditions. Whether in a river with rapid currents or in a marine environment with large waves, it can stably and efficiently complete underwater operation tasks.

[0029] The mounting frame 1 can be made of high-strength polyethylene sheet to prepare two vertical plates on the left and right sides. Multiple holes are set on the vertical plates for installing accessories and reducing weight. The two vertical plates are connected and reinforced by aluminum alloy pipes.

[0030] In some embodiments, in conjunction with the appendix Figure 1 As shown, the drive assembly 3 includes a waterproof slip ring chamber 6 and a power chamber 7. One end of the waterproof slip ring chamber 6 extends out of the cable winding mechanism 2 and connects to the mounting bracket 1, while the other end connects to the power chamber 7. The waterproof slip ring chamber 6 ensures stable power and signal transmission, effectively preventing line damage and signal interference caused by cable twisting during winding and release. (See attached diagram.) Figure 11 and attached Figure 12 As shown, the waterproof slip ring chamber 6 includes a slip ring sealing chamber 27, a rotating end cap 28, a slip ring 29, a communication circuit board 30, a fixed sealing cover 31, and an external cable 32. The slip ring sealing chamber 27 has a rotating end cap 28 at one end and a fixed sealing cover 31 at the other end. The rotating end cap 28 has a rotating mounting hole, and the cable connector 33 is rotatably mounted in this rotating mounting hole. The cable connector 33 is connected to the inner wall of the rotating mounting hole via a dynamic sealing ring 34, which can be a Glyd ring. The cable connector 33 is connected to the inner wall of the rotating mounting hole via a bearing 35. The cable connector 33 is connected to the slip ring 29. The communication circuit board 30 is mounted on the inner wall of the slip ring sealing chamber 27, and the external cable 32 is mounted on the fixed sealing cover 31.

[0031] The power compartment 7 includes a multi-turn absolute servo motor 8, a power compartment body 36, and a power compartment end cover 37. The power compartment body 36 is a sealed compartment, with the power compartment end cover 37 located at one end. The multi-turn absolute servo motor 8 is housed within the power compartment body 36, and its output shaft is connected to the power compartment end cover 37 via a rotary seal ring, which can also be a Glyd ring. The multi-turn absolute servo motor 8 is a waterproof motor. Its output shaft passes through the cable winding mechanism and connects to the end cover 11, thus fixing the stator of the multi-turn absolute servo motor 8 to the inner wall of the cable winding mechanism 2, while the rotor is connected to the spindle of the cable winding mechanism 2. This direct connection method results in a more compact structure compared to traditional gearboxes and couplings. The tail of this multi-turn absolute servo motor 8 integrates a multi-turn absolute encoder (e.g., supporting 16-bit resolution and 4096 turns count), which outputs the drum rotation angle, cumulative turns, and absolute position in real time, enabling power-off memory and millimeter-level winding and unwinding positioning.

[0032] In some embodiments, in conjunction with the appendix Figure 6 , 7 As shown in Figure 8, the cable winding mechanism 2 includes a roller 9 and cable baffles 10 disposed at both ends of the roller 9. Both ends of the roller 9 are rotatably connected to the mounting frame 1. The mounting frame 1 is provided with mounting holes for mounting the roller 9. A bearing seat 38 is disposed in the mounting hole. A baffle 39 is disposed at the end of the bearing seat 38 near the roller 9. An end cap bearing 40 is disposed inside the bearing seat 38. The roller 9 is disposed inside the end cap bearing 40. This enables the rotatable connection between the roller 9 and the mounting frame 1. The mounting frame 1 is provided with end caps 11 covering both ends of the roller 9. A drive assembly 3 is disposed inside the roller 9. The drive assembly 3 is connected to the end caps 11. Specifically, the external cable 32 of the waterproof slip ring chamber 6 is connected to the end cap 11, and the output shaft of the corresponding absolute value servo motor 8 is also connected to the end cap 11.

[0033] In some embodiments, in conjunction with the appendix Figure 4 As shown, the cable laying mechanism 4 includes a cable laying drive unit 12, a lead screw 13, a lead screw nut 14, a guide shaft 15, and a movable seat 16. The cable laying drive unit 12 is mounted on the mounting frame 1. One end of the lead screw 13 is rotatably connected to the drive end of the cable laying drive unit 12, and the other end is rotatably connected to the mounting frame 1. Thus, the cable laying drive unit 12 can drive the lead screw 13 to rotate. The lead screw nut 14 is threadedly engaged with the lead screw 13. When the lead screw 13 rotates, the lead screw nut 14 will move linearly along the lead screw 13. The guide shaft 15 is set parallel to the lead screw 13, and both ends of the guide shaft 15 are also fixedly connected to the mounting frame 1. The movable seat 16 is fixedly connected to the lead screw nut 14, and the movable seat 16 is also sleeved on the guide shaft 15. The guide shaft 15 provides guidance for the movement of the movable seat 16, ensuring that the movable seat 16 can move smoothly along the axial direction of the lead screw 13.

[0034] The cable arrangement mechanism 4 is designed in such a way that during the cable winding process, the cable arrangement drive unit 12 drives the lead screw 13 to rotate, which in turn drives the lead screw nut 14 and the connected movable seat 16 to move along the guide shaft 15. Together with the cable throwing mechanism 5 on the movable seat 16, it guides the cable to be neatly arranged on the drum 9, avoiding problems such as cable stacking and tangling, thus improving the efficiency and quality of cable winding. Furthermore, by controlling the rotation speed and direction of the cable arrangement drive unit 12, the moving speed and direction of the movable seat 16 can be precisely controlled to adapt to different cable winding requirements.

[0035] Furthermore, to further ensure the stability and reliability of the cable laying mechanism, a suitable bearing can be installed at the rotating connection between the lead screw 13 and the mounting bracket 1 to reduce friction during rotation and improve the smoothness of the lead screw 13's rotation. Simultaneously, appropriate lubrication can be applied to the mating point between the guide shaft 15 and the moving seat 16 to reduce wear and extend the equipment's service life. Regarding the selection of the cable laying drive unit 12, a drive device with appropriate power and control precision can be selected based on the actual workload and accuracy requirements to ensure that the cable laying mechanism 4 can operate efficiently and stably.

[0036] In some embodiments, two limit switches 17 are also included, each located near one end of the lead screw 13. These two limit switches 17 accurately detect and limit the movement range of the movable seat 16. When the movable seat 16 moves to a position near both ends of the lead screw 13 under its drive, the limit switches 17 promptly sense this and send a signal, causing the cable routing drive unit 12 to stop operating. This prevents the movable seat 16 from exceeding the effective travel range of the lead screw 13 and avoids damage to the equipment due to excessive movement. The limit switches 17 can employ high-precision, high-reliability sensing elements to ensure accurate and sensitive detection of the position of the movable seat 16.

[0037] In some embodiments, the cable throwing mechanism 5 includes a cable throwing motor 18, a driving wheel 19, a driven wheel 20, and a clamping mechanism 21. The driving end of the cable throwing motor 18 is provided with the driving wheel 19, and the clamping mechanism 21 has a tendency force to drive the driven wheel 20 to move toward the driving wheel 19. A cable hole is formed between the driving wheel 19 and the driven wheel 20.

[0038] After the cable throwing motor 18 starts, the drive wheel 19 will begin to rotate under its drive. Since the driven wheel 20, under the action of the clamping mechanism 21, is in contact with the drive wheel 19, it can clamp the cable. When the drive wheel 19 rotates, it will drive the cable to move through friction, thereby realizing the cable conveying and throwing action. The clamping mechanism 21 includes a drive wheel bearing seat 41, a driven wheel bearing seat 42, a guide screw 43, and a spring 44. Drive wheel bearing seats 41 are provided at both ends of the drive wheel 19, and driven wheel bearing seats 42 are provided at both ends of the driven wheel 20. The guide screw 43 passes through the driven wheel bearing seat 42 and connects to the drive wheel bearing seat 41. The driven wheel bearing seat 42 is slidably connected to the guide screw 43. The spring 44 is sleeved on the guide screw 43, with one end of the spring 44 abutting against the screw head of the guide screw 43 and the other end abutting against the driven wheel bearing seat 42. This achieves the effect of driving the driven wheel 20 to press against the drive wheel 19 and clamp the cable.

[0039] In some embodiments, a cable angle correction mechanism 22 is also included, which is disposed on the side of the cable throwing mechanism 5 near the cable reeling mechanism 2. The cable angle correction mechanism 22 is mainly used to adjust and correct the angle of the cable during the conveying process, ensuring that the cable enters the cable throwing mechanism 5 at a suitable angle. It can effectively avoid problems such as twisting and tangling of the cable during transmission, and improve the accuracy and stability of cable throwing.

[0040] Combined with appendix Figure 13 and attached Figure 15 As shown, the cable angle correction mechanism 22 includes at least one set of horizontal limiting rollers 23, at least one set of vertical limiting rollers 24, a swing roller 25, and a correction limit switch 45. The horizontal limiting rollers 23 and vertical limiting rollers 24 are sequentially arranged on one side of the cable throwing mechanism 5. Specifically, in this application, two sets of vertical limiting rollers 24 and one set of horizontal limiting rollers 23 can be used. The two sets of vertical limiting rollers 24 are arranged on both sides of the horizontal limiting rollers 23. The swing roller 25 is arranged on the side of the vertical limiting rollers 24 away from the cable throwing mechanism 5 via a swing shaft 26. There are two correction limit switches 45, which are symmetrically arranged. Located below the swing roller 25, one of the correction limit switches 45 is exposed when the swing roller 25 swings. The cable passes through the cable holes of the driving wheel 19 and the driven wheel 20 in sequence, the vertical limit roller 24, the horizontal limit roller 23, the vertical limit roller 24 and the swing roller 25. When the cable deviates during the winding or unwinding process, the swing roller 25 will also swing, and one of the correction limit switches 45 will be exposed, thus feeding back to the control system. The control system can then determine that the cable has deviated from the center position based on this information, and adjust the speed of the cable laying drive unit 12 accordingly.

[0041] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An unmanned marine electric winch, characterized in that, It includes a mounting frame, a cable winding mechanism, a drive assembly, a cable laying mechanism, and a cable throwing mechanism. The cable winding mechanism is rotatably mounted on the mounting frame. The drive assembly is located inside the cable winding mechanism and its drive end is connected to the mounting frame. The cable laying mechanism is mounted on the mounting frame, and the cable throwing mechanism is located on the drive end of the cable laying mechanism. The cable throwing mechanism includes a cable throwing motor, a driving wheel, a driven wheel, and a clamping mechanism. The driving wheel is located at the drive end of the cable throwing motor. The clamping mechanism has a tendency force to drive the driven wheel toward the driving wheel. A cable hole is formed between the driving wheel and the driven wheel. It also includes a cable angle correction mechanism, which is located on the side of the cable throwing mechanism that is closer to the cable winding mechanism.

2. The unmanned marine electric winch according to claim 1, characterized in that, The drive assembly includes a waterproof slip ring chamber and a power chamber. One end of the waterproof slip ring chamber extends out of the cable winding mechanism and is connected to the mounting frame, while the other end is connected to the power chamber.

3. The unmanned marine electric winch according to claim 2, characterized in that, The power compartment includes multi-turn absolute value servo motors.

4. The unmanned marine electric winch according to claim 1, characterized in that, The cable winding mechanism includes a roller and cable baffles disposed at both ends of the roller. Both ends of the roller are rotatably connected to the mounting frame. The mounting frame is provided with end caps covering both ends of the roller. The drive assembly is disposed inside the roller and is connected to the end caps.

5. The unmanned marine electric winch according to claim 1, characterized in that, The cable laying mechanism includes a cable laying drive unit, a lead screw, a lead screw nut, a guide shaft, and a movable seat. The cable laying drive unit is mounted on the mounting frame, and the lead screw is mounted on the drive end of the cable laying drive unit. The lead screw is rotatably connected to the mounting frame, and the lead screw nut is mounted on the lead screw. The cable throwing mechanism is connected to the lead screw nut via the movable seat. The guide shaft is mounted on the mounting frame, and the movable seat is slidably connected to the guide shaft.

6. The unmanned marine electric winch according to claim 5, characterized in that, It also includes limit switches, of which there are two, and each is located near one end of the lead screw.

7. The unmanned marine electric winch according to claim 1, characterized in that, The cable angle correction mechanism includes at least one set of horizontal limiting rollers, at least one set of vertical limiting rollers, a swing roller, and a correction limit switch. The horizontal limiting rollers and the vertical limiting rollers are sequentially arranged on one side of the cable throwing mechanism. The swing roller is arranged on the side of the vertical limiting roller away from the cable throwing mechanism via a swing shaft. There are two correction limit switches, which are symmetrically arranged below the swing roller. When the swing roller swings, one of the correction limit switches is exposed.

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