A ship towing guide device

Abstract

The utility model provides a kind of ship towing guide device, cooperate with tow rope, including check pin fairlead, guide eye plate device and anti-jumping component, guide eye plate device is buried in deck, is configured to longitudinal rotation, anti-jumping component one end connects guide eye plate device, the other end and tow rope sliding cooperation, the two sides of anti-jumping component are connected with deck tension respectively, guide eye plate device and anti-jumping component can be with check pin fairlead Cooperation forms three-dimensional constraint to tow rope, can bear sudden impact load in any direction, constrain tow rope irregular motion, constraint effect is good, while dispersing sudden impact stress, avoid causing the damage of key component, improve the overall service life of towing device and the reliability of towing guide device.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding and marine engineering technology, and specifically to a ship towing guidance device. Background Technology

[0002] Ship towing equipment is a key device used to ensure that the towed vessel, buoy or other structure maintains a stable orientation and position during towing operations.

[0003] During towing operations, traditional ship towing devices mainly rely on guide pins to limit the towing cable to the left and right. However, towing operations at sea are subject to many environmental variables, such as wind speed, wave height, and current speed. The towing cable may very well jump out of the guide pin's limit range, and the guide pin may no longer limit it, resulting in damage to the ship's side structure and winch, thus causing low reliability of ship towing.

[0004] Therefore, providing a ship towing device that can effectively constrain the towing cable, ensure that the ship's side structure is not damaged, and improve towing reliability has become an urgent problem to be solved in this field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ship towing guidance device with good restraint effect and high reliability.

[0006] To achieve the above objectives, the ship towing guidance device provided by this utility model, in conjunction with the towing cable, includes a stop pin guide shaft, in which the towing cable passes. It also includes a guide eye plate device and an anti-slip assembly.

[0007] The guide eye plate device is embedded in the deck and configured to rotate longitudinally. One end of the anti-jumping component is connected to the guide eye plate device, and the other end is slidably engaged with the tow cable. Both sides of the anti-jumping component are respectively connected to the deck tensioning. The guide eye plate device and the anti-jumping component can cooperate with the stop pin guide cable shaft to form a three-dimensional constraint on the tow cable.

[0008] Furthermore, the guide eye plate device is disposed in an embedded storage structure box, which is built into the deck and has its opening flush with the deck.

[0009] Furthermore, the guide eye plate device includes an eye plate, a bearing housing, a mandrel, and a bushing. The bearing housing is disposed at the bottom of the eye plate, the mandrel is disposed inside the bearing housing, and the bushing is sleeved on the mandrel, having a clearance fit with the mandrel and an interference fit with the bearing housing.

[0010] Furthermore, the guide plate device also includes an oil cup and a movable shim, the oil cup being disposed on the mandrel and the movable shim being disposed at both ends of the mandrel.

[0011] Furthermore, the open end of the embedded storage structure box is provided with a detachable cover plate that can be detachably connected, and the bottom of the embedded storage structure box is provided with a drainage system.

[0012] Furthermore, the anti-jumping assembly includes a guide eye plate fitting, a tow cable fitting, and a deck fitting. The guide eye plate fitting includes a shackle assembly and a chain link assembly. The first shackle and the second shackle are connected to each other through the chain link assembly. The first shackle is connected to the tow cable fitting and the deck fitting, respectively, and the second shackle is connected to the guide eye plate device.

[0013] Furthermore, the towing cable assembly includes an anti-wear pulley and a pulley bushing. The anti-wear pulley passes through the pulley bushing onto the first shackle, and the anti-wear pulley and the pulley bushing are configured for intermittent engagement.

[0014] Furthermore, the tow cable passes through the first shackle and slides into contact with the anti-wear pulley.

[0015] Furthermore, the deck fittings are respectively arranged on both sides of the first shackle, including a third shackle, a fourth shackle, a heavy-duty collar, a wire rope, and a fixing eye plate. The third shackle is connected to the first shackle, the fixing eye plate is arranged on the deck, the wire rope is in a taut state, one end is connected to the third shackle through the heavy-duty collar, and the other end is connected to the fourth shackle through the heavy-duty collar.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This solution uses a guide eye plate assembly and an anti-jump assembly to limit the irregular movement of the tow cable. Together with the stop pin guide cable shaft, it forms a three-dimensional constraint on the tow cable to withstand sudden impact loads in any direction, resulting in a good constraint effect.

[0018] Furthermore, this solution disperses sudden impact stress by three-dimensionally constraining the irregular movement of the towing cable, avoiding damage to key components and improving the overall service life of the towing device and the reliability of the towing guidance device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the ship towing and guiding device provided by this utility model;

[0020] Figure 2 This is a horizontal schematic diagram of the guide eye plate device and the embedded storage structure box in this utility model;

[0021] Figure 3 This is a longitudinal cross-sectional view of the guide eye plate device and the embedded storage structure box in this utility model;

[0022] Figure 4 This is a cross-sectional view of the guide eye plate device and the embedded storage structure box in this utility model;

[0023] Figure 5 This is a schematic diagram of the detachable cover plate in this utility model;

[0024] Figure 6 and Figure 7 This is a schematic diagram of the guide eye plate device in this utility model;

[0025] Figure 8 This is a schematic diagram of the anti-jumping component in this utility model;

[0026] Figure 9 This is a schematic diagram showing the cooperation between the anti-jumping component and the guide eye plate device in this utility model;

[0027] Figure 10 This is a schematic diagram showing the cooperation between the wear-resistant pulley and the towing cable in a utility model.

[0028] Figure 11 This is a schematic diagram illustrating the application of the ship towing guidance device in this utility model.

[0029] The following are the component labels in the attached diagram:

[0030] 1. Guide eye plate assembly; 11. Eye plate; 12. Bearing housing; 13. Mandrel; 14. Bushing; 15. Oil cup; 16. Movable shim;

[0031] 2. Anti-jump assembly; 21. First chain link; 22. Second chain link; 23. First shackle; 231. Locking pin; 24. Second shackle; 25. Anti-wear pulley; 251. Restraining groove; 26. Pulley bushing; 27. Third shackle; 28. Fourth shackle; 29. ​​Heavy-duty collar; 210. Steel wire rope; 211. Fixing eye plate;

[0032] 3. Towing cable;

[0033] 4. Embedded storage structure box; 41. Open end; 42. Removable cover; 43. Drainage system; 44. Support plate;

[0034] 5. Guide pin; 6. Towed vessel; 7. Tugboat; 8. Towing winch. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to preferred embodiments and accompanying drawings:

[0036] See Figure 1 The image shown is an example of a ship towing guidance device provided by this utility model.

[0037] As shown in the figure, the ship towing guide device in this example works with the towing cable 3 and mainly includes the stop pin guide cable shaft 5, the guide eye plate device 1, and the anti-jumping component 2.

[0038] The guide eye plate device 1 is embedded in the deck and configured to rotate longitudinally. One end of the anti-jump component 2 is connected to the guide eye plate device 1, and the other end is slidably engaged with the tow cable 3. Both sides of the anti-jump component 3 are respectively connected to the deck tensioning. The guide eye plate device 1 and the anti-jump component 2 can cooperate with the stop pin guide cable shaft 5 to form a three-dimensional constraint on the tow cable 3, thereby improving the constraint effect on the tow cable 3, dispersing sudden impact stress, avoiding damage to key components, improving the overall service life of the towing device and the reliability of the towing guide device.

[0039] Combination Figures 2 to 5 The guide eye plate device 1 is installed in the embedded storage structure box 4, which is built into the deck and has its opening end 41 flush with the deck. A detachable cover plate 42 is provided at the opening end 41 so that the guide eye plate device 1 can be stored in the embedded storage structure box 4. The detachable cover plate 42 can close the opening end 41 of the embedded storage structure box 4 to prevent rainwater from entering the embedded storage structure box 4, thereby improving the service life of the guide eye plate device 1. At the same time, after the detachable cover plate 42 closes the opening end 41 of the embedded storage structure box 4, it is flush with the deck and does not affect the normal use of the deck.

[0040] Furthermore, the bottom of the embedded storage structure box 4 is provided with a drainage system 43, which is configured to draw out and drain the water accumulated inside the embedded storage structure box 4 to ensure that the inside of the embedded storage structure box 4 remains dry and to improve the service life of the guide eye plate device 1.

[0041] Here, the drainage system 43 is a conventional technical means in this field, and will not be described in detail here.

[0042] In addition, a support plate 44 is provided inside the embedded storage structure box 4, so that when the guide eye plate device 1 is stored in the embedded storage structure box 4, the support plate 44 abuts against the guide eye plate device 1 to support the guide eye plate device 1 and prevent the guide eye plate device 1 from shaking during the tugboat's movement.

[0043] Furthermore, the guide plate device 1 is configured to rotate longitudinally, which can provide longitudinal constraint on the tow cable 3.

[0044] Combination Figure 6 and Figure 7Specifically, the guide eye plate device 1 includes an eye plate 11, a bearing seat 12, a spindle 13, and a bushing 14. The bearing seat 12 is located at the bottom of the eye plate 11, and the spindle 13 is located inside the bearing seat 12. Both ends of the spindle 13 extend out of the bearing seat 12 and connect to the side wall of the embedded storage structure box 4, thereby placing the guide eye plate device 1 in the embedded storage structure box 4.

[0045] Furthermore, the bushing 14 is fitted onto the spindle 13 with a clearance fit and an interference fit with the bearing seat 12, so that the eye plate 11 and the bearing seat 12 can rotate around the spindle 13, thereby realizing the longitudinal rotation of the guide eye plate device 1.

[0046] Here, in the working state of the guide eye plate device 1, the eye plate 11 and the bearing seat 12 can rotate around the spindle 13 facing the opening end 41, so that the eye plate 11 extends slightly out of the embedded storage structure box 4 and can cooperate with the anti-jump assembly 2. In the storage state of the guide eye plate device 1, the eye plate 11 and the bearing seat 12 can rotate around the spindle 13 facing the inside of the embedded storage structure box 4, so that the eye plate 11 abuts against the support plate 44, and the guide eye plate device 1 is completely housed in the embedded storage structure box 4.

[0047] To ensure the stable rotation of the guide eye plate device 1, the guide eye plate device 1 also includes an oil cup 15 and a movable shim 16. The oil cup 15 is disposed on the spindle 13 and is preferably composed of a dual oil passage oil cup and configured as a radial labyrinth seal structure. Lubricating grease, such as butter, is injected between the spindle 13 and the bearing seat 12 through the oil cup 15, which can expel air, prevent rust and friction, so that the eye plate 11 and the bearing seat 12 can rotate smoothly around the spindle 13.

[0048] Furthermore, movable shims 15 are disposed at both ends of the spindle 13 and abut against both ends of the bearing housing 12, so that the bearing housing 12 is limited by the abutment of the movable shims 15, preventing the bearing housing 12 from moving laterally when rotating around the spindle 13, thereby ensuring the stable rotation of the eye plate 11 and the bearing housing 12 without deviation, and at the same time ensuring that the force generated by the eye plate 11 and the bearing housing 12 on the spindle 13 is centered on the spindle 13, ensuring the overall structural stability of the guide eye plate device 1.

[0049] The guide eye plate device 1 thus formed can be embedded in the deck through the embedded storage structure box 4 and can rotate longitudinally around the spindle 13, cooperating with the anti-jumping component 2 to restrain the tow cable 3.

[0050] Combination Figure 1 and Figure 8In conjunction with this, the anti-jumping component 2 includes a guide eye plate assembly, a tow cable assembly, and a deck assembly. The guide eye plate assembly, tow cable assembly, and deck assembly can cooperate with each other to connect with the guide eye plate device 1, the tow cable 3, and the deck, respectively, so as to achieve longitudinal and vertical constraints on the tow cable 3.

[0051] Combination Figure 9 Specifically, the guide eye plate assembly includes a shackle assembly and a chain link assembly. The first chain link 21 and the second chain link 22 are nested together along the height direction. The first shackle 23 is nested with the first chain link 21, and the second shackle 24 is nested with the second chain link 22, so that the shackle assembly and the chain link assembly form a structurally stable chain connection structure. The second shackle 24 is nested with the eye plate 11 of the guide eye plate device 1, thereby connecting the anti-jump component 2 to the guide eye plate device 1, which can rotate synchronously with the guide eye plate device 1.

[0052] Furthermore, the first shackle 23 connects the towline fitting and the deck fitting respectively. The towline fitting includes an anti-wear pulley 25 and a pulley bushing 26. The anti-wear pulley 25 passes through the pulley bushing 26 onto the locking pin 231 of the first shackle 23, and the anti-wear pulley 25 and the pulley bushing 26 are configured for intermittent engagement so that the anti-wear pulley 25 can rotate around the locking pin 231. A constraint groove 251 adapted to the towline 3 is also formed on the anti-wear pulley 25 so that the towline 3 can pass through the first shackle 23 and slide against the constraint groove 251 on the anti-wear pulley 25. Figure 10 As shown.

[0053] In this way, the vertical movement of the tow cable 3 is limited by the first shackle 23 and the anti-wear pulley 25, and it cannot jump out of the first shackle 23, thus achieving vertical constraint on the tow cable 3.

[0054] Meanwhile, during the towing process, the towing cable 3 will drive the anti-wear pulley 25 to rotate synchronously around the locking pin 231, which can effectively reduce the friction loss of the towing cable 3 and improve the service life and reliability of the towing cable 3.

[0055] Furthermore, the deck fittings are respectively arranged on both sides of the first shackle 23, so that the anti-jump assembly 2 can be tensioned and connected to the deck on both sides through the deck fittings, thereby cooperating with the guide eye plate device 1 to form longitudinal restraint on the tow cable.

[0056] Specifically, the deck assembly includes a third shackle 27, a fourth shackle 28, a heavy-duty collar 29, a wire rope 210, and a fixing eye plate 211. The third shackle 27 is connected to the first shackle 23. The fixing eye plate 211 is preferably an F-type eye plate, which is set on the deck and forms a gap with the guide eye plate device 1. The wire rope 210 is in a taut state, with one end connected to the third shackle 27 through the heavy-duty collar 29, and the other end connected to the fourth shackle 28 through the heavy-duty collar 29, so that the two ends of the wire rope 210 are respectively connected to the first shackle 23 and the deck. Under the tension of the wire rope 210, the anti-jump assembly 2 and the deck are tensioned and connected, ensuring the stable distribution of the anti-jump assembly 2.

[0057] Meanwhile, since the guide eye plate device 1 is embedded in the deck and extends slightly beyond the embedded storage structure box 4, the fixed eye plate 211 is set on the deck and is distributed at a distance from the guide eye plate device 1, so that the guide eye plate device 1 and the fixed eye plate 211 are at the same horizontal height, thereby ensuring that the anti-jump component 2 can maintain a stable horizontal distribution through the guide eye plate device 1 and the fixed eye plates 211 distributed on both sides of the guide eye plate device 1.

[0058] In this way, when the tow cable 3 is towed, it will move longitudinally, which will generate a longitudinal force on the anti-jump component 2, thereby causing the anti-jump component 2 and the guide eye plate device 1 to rotate longitudinally synchronously, and simultaneously generate a longitudinal tension on the steel wire ropes 210 on both sides. The tension of the steel wire ropes 210 will limit the rotation angle of the anti-jump component 2 and the guide eye plate device 1, thereby preventing the tow cable 3 from moving longitudinally and forming a longitudinal constraint on the tow cable 3.

[0059] Therefore, the anti-jumping assembly 2 is composed of several shackles and chain links nested together to form a chain structure. In non-operational states, the anti-jumping assembly 2 lies flat on the deck due to its own weight. In practical applications, one end of the towline 3 is connected to the tow machine of the tugboat, which retracts and extends the towline 3. The other end of the towline 3 passes through the first shackle 23 of the towline fitting and slides against the constraint groove 251 on the anti-wear pulley 25. It then passes through the guide pin shaft 5 and finally connects to the towed vessel. The tow machine and the towed vessel then engage the towline 3 at both ends. Under tension, the towline 3 has tension force, which can effectively support the towline fittings and generate support force for the anti-jumping component 2, changing the anti-jumping component 2 from a flat state on the deck to an upright state. Then, in conjunction with the deck fittings, the two sides of the anti-jumping component 2 are tensioned and connected to the deck respectively. Simultaneously, the guide eye plate fittings connect the anti-jumping component 2 to the guide eye plate device 1, so that the anti-jumping component 2 can be stably erected on the deck and connected to the guide eye plate device 1, the towline 3 and the deck respectively, so as to achieve longitudinal and vertical constraints on the towline 3.

[0060] Meanwhile, the supporting force generated by the tow cable 3 on the anti-jump component 2 can cancel out the force of vertical movement of the tow cable 3, and the vertical movement of the tow cable 3 is limited by the first shackle 23 and the anti-wear pulley 25, further ensuring the vertical constraint of the tow cable 3.

[0061] The anti-jumping component 2 thus formed works in conjunction with the guide eye plate device 1 to achieve vertical and longitudinal constraints on the tow cable 3.

[0062] Furthermore, the towline 3 is also threaded between the two guide shafts of the stop pin guide shaft 5. The stop pin guide shaft 5 can form a lateral constraint on the towline 3, so that the anti-jump component 2, the guide eye plate device 1 and the stop pin guide shaft 5 work together to form a three-dimensional constraint on the towline 3, effectively improving the constraint effect on the towline 3 and ensuring that the towline 3 remains stable when towing the ship. The three-dimensional constraint system can withstand sudden impact loads in any direction and has a good constraint effect.

[0063] Meanwhile, the anti-jump component 2, the guide eye plate device 1, and the stop pin guide cable shaft 5 work together to form a three-dimensional constraint on the towing cable 3, which can also disperse sudden impact stress, avoid damage to key components, and improve the overall service life of the towing device and the reliability of the towing guide device.

[0064] Here, the guide pin 5 is a conventional technical means in this field, and will not be described in detail here.

[0065] The following example illustrates the working process of this utility model in a specific application. It should be noted that the content described here is only a specific application example of this solution and does not constitute a limitation on this solution.

[0066] Combination Figure 11 As an example, in a specific application, one end of the tow cable 3 is connected to the tow machine 8 of the tugboat 7. The tow machine 8 can tow and release the tow cable 3. The other end of the tow cable 3 first passes through the first shackle 23 of the anti-fall component 2, and then slides and abuts against the constraint groove 251 on the anti-wear pulley 25. After that, it passes through the middle of the two guide shafts of the stop pin guide shaft 5, and finally connects to the towed vessel 6.

[0067] Under the tension of the towing cable 3 at both ends by the towing cable 8 and the towed vessel 6, the towing cable 3 has tension, which can provide support for the anti-jumping component 2, changing the anti-jumping component 2 from a lying state on the deck to an upright state.

[0068] Meanwhile, the anti-jumping component 2 is connected to the deck tensioning on both sides by the deck fitting, and the anti-jumping component 2 is connected to the guide eye plate device 1 by the guide eye plate fitting, so that the anti-jumping component 2 can be stably erected on the deck.

[0069] Furthermore, the towing machine 8 releases a section of the towing cable 3 to begin towing operations. During the towing operation, the towing cable 3 remains between the two guide shafts of the stop pin guide shaft 5, preventing the towing cable 3 from swinging laterally when the tugboat 7 turns, thus creating lateral restraint and preventing damage to the hull and the towing cable 3.

[0070] At the same time, the supporting force generated by the tow cable 3 on the anti-jump component 2 can cancel out the force of vertical movement of the tow cable 3, and the vertical movement of the tow cable 3 is limited by the buckle body of the first shackle 23 and the anti-wear pulley 25, so it will not jump out of the first shackle 23, thus forming a vertical constraint on the tow cable 3.

[0071] Simultaneously, the tow cable 3 moves longitudinally during towing, which will generate a longitudinal force on the anti-jump component 2, causing the anti-jump component 2 and the guide eye plate device 1 to rotate longitudinally synchronously, and simultaneously generate a longitudinal tension on the steel wire ropes 210 on both sides of the anti-jump component 2. The tension of the steel wire ropes 210 will limit the rotation angle of the anti-jump component 2 and the guide eye plate device 1, thereby preventing the tow cable 3 from moving longitudinally and forming a longitudinal constraint on the tow cable 3.

[0072] Furthermore, in order to ensure the stable distribution of the tow cable 3, when the tow cable 3 moves longitudinally and drives the anti-jump component 2 and the guide eye plate device 1 to rotate longitudinally in sync, the tow cable machine 8 will release another section of the tow cable 3 to ensure that the tow cable 3 can move longitudinally a certain distance and prevent the longitudinal movement of the tow cable 3 from damaging the anti-jump component 2 and the guide eye plate device 1.

[0073] Therefore, the guide eye plate device 1, the anti-jump component 2, and the stop pin guide cable shaft 5 can cooperate with each other to prevent the tow cable 3 from moving longitudinally, jumping vertically, and moving horizontally, so as to constrain the tow cable 3 in three dimensions, effectively improve the constraint effect, and ensure towing stability.

[0074] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ship towing guidance device, cooperating with a towline, comprising a stop pin guide shaft, wherein the towline passes through the stop pin guide shaft, characterized in that, It also includes a guide plate device and an anti-jump assembly. The guide eye plate device is embedded in the deck and configured to rotate longitudinally. One end of the anti-jumping component is connected to the guide eye plate device, and the other end is slidably engaged with the tow cable. Both sides of the anti-jumping component are respectively connected to the deck tensioning. The guide eye plate device and the anti-jumping component can cooperate with the stop pin guide cable shaft to form a three-dimensional constraint on the tow cable.

2. The ship towing and guiding device according to claim 1, characterized in that, The guide eye plate device is installed in the embedded storage structure box, which is built into the deck and has its opening flush with the deck.

3. The ship towing and guiding device according to claim 2, characterized in that, The guide eye plate device includes an eye plate, a bearing seat, a mandrel, and a bushing. The bearing seat is disposed at the bottom of the eye plate, the mandrel is disposed inside the bearing seat, and the bushing is sleeved on the mandrel, having a clearance fit with the mandrel and an interference fit with the bearing seat.

4. The ship towing guidance device according to claim 3, characterized in that, The guide plate device also includes an oil cup and a movable shim. The oil cup is disposed on the mandrel, and the movable shim is disposed at both ends of the mandrel.

5. The ship towing and guiding device according to claim 2, characterized in that, The embedded storage structure box has a detachable cover plate at its open end, and a drainage system at the bottom.

6. The ship towing and guiding device according to claim 1, characterized in that, The anti-jump assembly includes a guide eye plate assembly, a tow cable assembly, and a deck assembly. The guide eye plate assembly includes a shackle assembly and a chain link assembly. The first shackle and the second shackle are connected to each other through the chain link assembly. The first shackle is connected to the tow cable assembly and the deck assembly, respectively, and the second shackle is connected to the guide eye plate assembly.

7. The ship towing and guiding device according to claim 6, characterized in that, The tow cable assembly includes an anti-wear pulley and a pulley bushing. The anti-wear pulley passes through the pulley bushing onto the first shackle, and the anti-wear pulley and the pulley bushing are configured for intermittent engagement.

8. The ship towing and guiding device according to claim 7, characterized in that, The tow cable passes through the first shackle and slides against the anti-wear pulley.

9. The ship towing and guiding device according to claim 7, characterized in that, The deck fittings are respectively arranged on both sides of the first shackle, including a third shackle, a fourth shackle, a heavy-duty collar, a wire rope, and a fixing eye plate. The third shackle is connected to the first shackle, the fixing eye plate is arranged on the deck, and the wire rope is in a taut state, with one end connected to the third shackle through the heavy-duty collar and the other end connected to the fourth shackle through the heavy-duty collar.

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