Cable towing device for ship

Abstract

The utility model discloses a towing device for a ship, and relates to the technical field of towing devices, the towing device comprises a towing engine arranged on the ship, one side of the towing engine is provided with a fixing frame, the fixing frame is provided with a forward and reverse rotation driving motor, a threaded rod is rotatably arranged between the inner walls of the two sides of the fixing frame, and the output end of the forward and reverse rotation driving motor is fixed to one end of the threaded rod; the threaded rod is in threaded connection with a movable plate frame which clamps the cable to move in the length direction of the threaded rod, pressing sensors which can abut against the movable plate frame are arranged on the inner walls of the two sides of the fixing frame, and the pressing sensors are electrically connected with the forward and reverse rotation driving motor to change the rotating direction of the forward and reverse rotation driving motor; the threaded rod is driven to rotate through the positive and negative rotation driving motor, so that the movable plate frame moves in the length direction of the threaded rod, cables are automatically arranged, the problems of high labor intensity and low efficiency of manual cable arrangement are solved, and the efficiency of ship cable towing operation is improved.

Description

Technical Field

[0001] This application relates to the field of towing cable devices, and in particular to towing cable devices for ships. Background Technology

[0002] As an indispensable supporting facility for ship operations, towline systems bear the crucial responsibility of connecting the force-applying and force-receiving vessels, and transmitting force to accomplish various critical tasks such as towing, rescue, berthing, and unberthing. In today's booming maritime transport industry, towline systems precisely control the direction and speed of large cargo ships entering and leaving ports, ensuring safe and efficient berthing in narrow channels and complex waters, avoiding collisions, and serving as a powerful assistant in maintaining smooth port operations. In ocean-going towing operations, they provide towing and rescue services for distressed vessels.

[0003] In the existing technology, the mooring lines used on small vessels are often wound up manually with the help of a tow line machine to ensure that the mooring lines are evenly wound onto the surface of the tow line machine rollers.

[0004] Regarding the aforementioned technologies, the inventors believe that manually adjusting the cable requires a lot of physical strength from the crew and is inefficient. Utility Model Content

[0005] The purpose of this application is to provide a towing cable device for ships to improve the inefficiency of manually towing cables for small vessels.

[0006] This application provides a towing cable device for ships, which adopts the following technical solution:

[0007] A towing cable device for ships includes a towing machine installed on a ship. A fixed frame is provided on one side of the towing machine. The fixed frame is equipped with a forward and reverse drive motor. A threaded rod is rotatably arranged between the inner walls of both sides of the fixed frame. The output end of the forward and reverse drive motor is fixed to one end of the threaded rod. A movable plate frame that clamps the cable and moves back and forth along the length of the threaded rod is threadedly connected to the threaded rod. A pressing sensor is provided on both inner walls of the fixed frame that can abut against the movable plate frame. The pressing sensor is electrically connected to the forward and reverse drive motor, and the rotation direction of the forward and reverse drive motor can be changed by pressing the pressing sensor.

[0008] By adopting the above technical solution, the forward and reverse drive motor drives the threaded rod to rotate, causing the moving plate to move along the length of the threaded rod, thereby realizing automatic cable laying. This avoids the problems of high labor intensity and low efficiency of manual cable laying, and improves the efficiency and automation of ship towing operations. The pressure sensor is electrically connected to the forward and reverse drive motor. When the moving plate moves to both sides of the fixed frame and abuts against the pressure sensor, it can change the rotation direction of the forward and reverse drive motor, realizing the reciprocating motion of the moving plate, which helps to prevent the cable from getting tangled and knotted. The overall structure is based on common components such as motors, threaded rods, moving plate frames and pressure sensors, which are easy to manufacture, install and maintain, reducing equipment costs and maintenance difficulty.

[0009] Optionally, a guide rod is provided between the inner walls on both sides of the fixed frame, which is slidably connected to the movable plate frame.

[0010] By adopting the above technical solution, the guide rod is slidably connected to the movable plate frame, providing additional guidance and support for the movement of the movable plate frame. This makes the movable plate frame more stable as it moves along the threaded rod, reducing swaying and deviation, and ensuring the accuracy and quality of cable laying. It also shares some of the lateral force of the movable plate frame on the threaded rod, reducing the risk of damage to the threaded rod due to uneven force and extending the service life of the threaded rod.

[0011] Optionally, the movable plate frame is provided with a clamping groove, and a rotating roller is rotatably disposed in the clamping groove.

[0012] By adopting the above technical solution, the rotating roller transforms the sliding friction between the cable and the moving plate frame into rolling friction, reducing cable wear and extending cable service life; at the same time, it reduces the resistance of the cable during the cable laying process and improves the efficiency of cable laying.

[0013] Optionally, clamping frames are provided on both inner walls of the clamping groove, and clamping rollers are rotatably mounted on the clamping frames to clamp the cable.

[0014] By adopting the above technical solution, the clamping roller can effectively clamp the cable, ensuring that the cable will not come off during the movement of the moving plate frame, thus improving the stability and reliability of the cable laying process.

[0015] Optionally, the outer wall of the clamping roller is concave.

[0016] By adopting the above technical solution, the outer wall of the clamping roller is concave, which can better fit the cable and prevent the cable from sliding left and right during the clamping process, further improving the clamping effect and positioning accuracy of the cable; the concave surface can evenly distribute the pressure of the cable, reduce the situation of excessive local stress on the cable, and reduce the possibility of damage to the cable due to local wear or compression.

[0017] Optionally, the clamping frame is provided with a connecting rod that is slidably connected to the side wall of the clamping groove on the side away from the clamping roller. The connecting rod is provided with a connecting plate at the end away from the clamping frame. The connecting plate is provided with an elastic element. The end of the elastic element away from the connecting plate is connected to the outer wall of the movable plate frame.

[0018] By adopting the above technical solution, the elastic element enables the clamping roller to have an elastic clamping function. When the cable diameter changes or the cable is subjected to uneven force, the elastic element can adjust the position and clamping force of the clamping roller by extending and retracting to ensure stable clamping of the cable. When the cable is suddenly subjected to force or an impact occurs during movement, the elastic element can play a buffering role, reducing the impact force on the clamping roller and the moving plate frame, and extending the service life of the equipment.

[0019] Optionally, the fixed frame is provided with a support assembly for supporting the cable on the side of the movable plate frame away from the cable towing machine. The support assembly includes a support frame, and the support frame is rotatably provided with a rotating roller two along the length direction of the fixed frame. The bottom surface of the support frame is provided with a hydraulic cylinder for driving the fixed frame to move up and down.

[0020] By adopting the above technical solution, the rotating roller two can support the cable, reduce the sag of the cable during the cable laying process, and maintain a certain tension and straightness of the cable during movement. This is conducive to the cable being wound more neatly on the cable towing machine, thus improving the cable laying quality. The hydraulic cylinder can drive the support frame to move up and down, thereby adjusting the height of the rotating roller two to adapt to different cable laying requirements and changes in cable tension, enhancing the flexibility and adaptability of the cable towing device.

[0021] Optionally, the fixing frame is provided with guide rods slidably connected to the support frame at both ends of the support frame along the vertical direction.

[0022] By adopting the above technical solution, the guide rod 2 is slidably connected to the support frame, providing guidance for the up and down movement of the support frame and improving the stability of the support frame under the drive of the hydraulic cylinder.

[0023] In summary, this application includes at least the following beneficial technical effects of marine towing cable devices:

[0024] 1. By driving the threaded rod to rotate via a forward and reverse drive motor, the movable plate frame moves along the length of the threaded rod, thereby achieving automatic cable laying. This avoids the problems of high labor intensity and low efficiency of manual cable laying, improving the efficiency and automation of ship towing operations. A pressure sensor is electrically connected to the forward and reverse drive motor. When the movable plate frame moves to both sides of the fixed frame and abuts against the pressure sensor, it changes the rotation direction of the forward and reverse drive motor, realizing the reciprocating motion of the movable plate frame, which helps prevent cable tangling and knotting. The overall structure is based on common components such as the motor, threaded rod, movable plate frame, and pressure sensor, making it easy to manufacture, install, and maintain, reducing equipment costs and maintenance difficulty.

[0025] 2. The rotating roller transforms the sliding friction between the cable and the moving plate frame into rolling friction, reducing cable wear and extending cable service life; at the same time, it reduces the resistance of the cable during the cable laying process and improves the efficiency of cable laying.

[0026] 3. The elastic element enables the clamping roller to have an elastic clamping function. When the cable diameter changes or the cable is subjected to uneven force, the elastic element can adjust the position and clamping force of the clamping roller by extending and retracting to ensure stable clamping of the cable. When the cable is suddenly subjected to force or an impact occurs during movement, the elastic element can play a buffering role, reducing the impact force on the clamping roller and the moving plate frame, and extending the service life of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a ship's towing cable system;

[0028] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0029] In the diagram, 1. Cable towing machine; 2. Fixed frame; 3. Forward and reverse drive motor; 31. Threaded rod; 32. Moving plate frame; 321. Clamping groove; 322. Rotating roller one; 33. Press sensor; 34. Guide rod one; 4. Clamping frame; 41. Clamping roller; 42. Connecting rod; 43. Connecting plate; 44. Elastic element; 5. Support assembly; 51. Support frame; 52. Rotating roller two; 53. Hydraulic cylinder; 54. Guide rod two. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail below.

[0031] Marine towing cable system, refer to Figure 1 The system includes a towing machine 1 installed on a ship for cable winding and unwinding operations. A fixed frame 2, which is fixed to the ship, is bolted to one side of the towing machine 1. A forward and reverse drive motor 3, which can be a servo motor, is bolted to the fixed frame 2. A threaded rod 31 is rotatably installed between the inner walls of the two sides of the fixed frame 2 through bearings. The output end of the forward and reverse drive motor 3 is welded and fixed to one end of the threaded rod 31. A movable plate frame 32, which clamps the cable and moves back and forth along the length of the threaded rod 31, is threadedly connected to the threaded rod 31.

[0032] Reference Figure 1A guide rod 34 is provided between the inner walls of both sides of the fixed frame 2 and is slidably connected to the movable plate frame 32. A pressing sensor 33 is bolted to both inner walls of the fixed frame 2 and can abut against the movable plate frame 32. The pressing sensor 33 is electrically connected to the forward and reverse drive motor 3. The rotation direction of the forward and reverse drive motor 3 can be changed by pressing the pressing sensor 33. When the movable plate frame 32 presses against the pressing sensor 33, the pressing sensor 33 will send a signal to the forward and reverse drive motor 3, thereby changing the rotation direction of the motor and causing the movable plate frame 32 to move in the opposite direction to realize reciprocating cable laying.

[0033] Reference Figure 1 , Figure 2 The movable plate frame 32 has a clamping groove 321. A rotating roller 322 is rotatably mounted in the clamping groove 321 via a bearing. Clamping frames 4 are provided on both inner walls of the clamping groove 321. Clamping rollers 41 are rotatably mounted on the clamping frames 4 via bearings to clamp the cable. The outer wall of the clamping rollers 41 is concave. A connecting rod 42 that is slidably connected to the side wall of the clamping groove 321 is welded to the side of the clamping frame 4 away from the clamping rollers 41. The clamping frame 4 has a hole for the connecting rods 42 to pass through. There are four connecting rods 42. Each clamping frame 4 has two connecting rods 42. A connecting plate 43 is welded to the end of the connecting rod 42 away from the clamping frame 4. An elastic element 44, which is a spring, is provided around the connecting rod 42. The end of the elastic element 44 away from the connecting plate 43 is welded to the outer wall of the movable plate frame 32.

[0034] Reference Figure 1 The fixed frame 2 is located on the side of the movable plate frame 32 away from the cable pulling machine 1 and is provided with a support assembly 5 for supporting the cable. The support assembly 5 includes a support frame 51. The support frame 51 is provided with a rotating roller 52 that rotates along the length of the fixed frame 2 via a bearing. The bottom surface of the support frame 51 is provided with a hydraulic cylinder 53 that drives the fixed frame 2 to move up and down. The output end of the hydraulic cylinder 53 is welded and fixed to the bottom surface of the support frame 51. The fixed frame 2 has a groove, and the hydraulic cylinder 53 is bolted in the groove. The fixed frame 2 is provided with guide rods 54 that are slidably connected to the support frame 51 at both ends of the support frame 51 along the up and down direction.

[0035] The implementation principle of this application embodiment is as follows:

[0036] When the vessel needs to perform towing operations, the towing machine 1 is started to begin winding and unwinding the cable. Simultaneously, the forward and reverse drive motor 3 is activated, driving the threaded rod 31 to rotate. This causes the movable frame 32 to move along the length of the threaded rod 31. The cable passes through the clamping groove 321 of the movable frame 32 and is clamped by the rotating roller 322 and the holding roller 41. As the movable frame 32 moves, the cable is arranged orderly on the drum of the towing machine 1. When the movable frame 32 moves to one end of the fixed frame 2, it presses against the pressing sensor 33 at that end. Upon detecting the signal, the pressing sensor 33 sends a command to the forward and reverse drive motor 3, causing the motor to change its rotation direction. This causes the movable frame 32 to move in the opposite direction, continuing the cable winding operation, thus achieving reciprocating cable winding. During the cable winding process, the rotating roller 322 and the rotating roller 52 rotate with the cable, reducing the cable's frictional resistance. The clamping roller 41, through the action of the elastic element 44, automatically adjusts the clamping force according to the diameter and stress of the cable to ensure stable clamping of the cable. If it is necessary to adjust the cable tension or cable laying height, the support frame 51 can be driven to move up and down by controlling the extension and retraction of the hydraulic cylinder 53, thereby adjusting the height of the rotating roller 52 to meet different operational needs; thus realizing automatic cable laying and avoiding the problems of high labor intensity and low efficiency of manual cable laying.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A towing cable device for ships, characterized in that: The system includes a towing machine (1) installed on a ship. A fixed frame (2) is provided on one side of the towing machine (1). A forward and reverse drive motor (3) is provided on the fixed frame (2). A threaded rod (31) is rotatably provided between the inner walls on both sides of the fixed frame (2). The output end of the forward and reverse drive motor (3) is fixed to one end of the threaded rod (31). The threaded rod (31) is threadedly connected to a movable plate frame (32) that clamps the cable and moves back and forth along the length of the threaded rod (31). A pressing sensor (33) is provided on the inner walls on both sides of the fixed frame (2) and can abut against the movable plate frame (32). The pressing sensor (33) is electrically connected to the forward and reverse drive motor (3). The rotation direction of the forward and reverse drive motor (3) can be changed by pressing the pressing sensor (33).

2. The ship towing cable device according to claim 1, characterized in that: A guide rod (34) is provided between the inner walls of both sides of the fixed frame (2) and is slidably connected to the movable plate frame (32).

3. The ship towing cable device according to claim 1, characterized in that: The movable plate frame (32) is provided with a clamping groove (321), and a rotating roller (322) is rotatably arranged in the clamping groove (321).

4. The towing cable device for ships according to claim 3, characterized in that: The inner walls on both sides of the clamping groove (321) are provided with clamping frames (4), and the clamping frames (4) are rotatably equipped with clamping rollers (41) to clamp the cable.

5. The ship towing cable device according to claim 4, characterized in that: The outer wall of the clamping roller (41) is concave.

6. The ship towing cable device according to claim 4, characterized in that: The clamping frame (4) is provided with a connecting rod (42) that is slidably connected to the side wall of the clamping groove (321) on the side away from the clamping roller (41). The connecting rod (42) is provided with a connecting plate (43) at the end away from the clamping frame (4). The connecting plate (43) is provided with an elastic element (44). The end of the elastic element (44) away from the connecting plate (43) is connected to the outer wall of the movable plate frame (32).

7. The towing cable device for ships according to claim 1, characterized in that: The fixed frame (2) is located on the side of the movable plate frame (32) away from the cable towing machine (1) and is provided with a support assembly (5) for supporting the cable. The support assembly (5) includes a support frame (51). The support frame (51) is rotatably provided with a rotating roller (52) along the length direction of the fixed frame (2). The bottom surface of the support frame (51) is provided with a hydraulic cylinder (53) for driving the fixed frame (2) to move up and down.

8. The towing cable device for ships according to claim 7, characterized in that: The fixing frame (2) is provided with guide rods (54) that are slidably connected to the support frame (51) at both ends of the support frame (51) in the vertical direction.

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