Shore-based rotary constant tension mooring system

Abstract

The present invention discloses a shore-based rotary constant tension mooring system, which relates to the technical field of large ship docking and mooring, and includes a working power component, a transmission component, and an execution component. The working power component includes a plurality of bladder accumulators, the bottom of which is fixedly connected to a bladder accumulator support. The transmission component includes a motor, the output end of which is fixedly connected to a second coupling, the end of the second coupling away from the motor is fixedly connected to a hydraulic pump, the bottom surface of the motor is fixedly connected to an oil tank, and the hydraulic pump is connected to the oil tank. The execution component includes a hydraulic motor, the output end of the hydraulic motor is fixedly connected to a first coupling, the end of the first coupling away from the hydraulic motor is fixedly connected to the input end of a reducer, the output end of the reducer is fixedly connected to a transmission shaft, a capstan is fixedly mounted on the transmission shaft, and a guide gate is provided on one side of the reducer. The present invention uses a hydraulic motor as the main pressure-maintaining device to adjust the length of the cable, thereby solving the problem of excessive or insufficient tension on the cable during high and low tides.

Description

Technical Field

[0001] The present invention relates to the technical field of large ship docking and mooring, and in particular to a shore-based rotary constant tension mooring system. Background Art

[0002] When moored in ports, large ships require reliable mooring systems to cope with natural conditions such as wind, waves, and currents. The traditional mooring method is to tie the cable directly to the mooring column on the shore. However, this method faces some challenges in complex marine environments. For example, when the sea tides affect the mooring process, the tension on the cable will increase during high tide and decrease during low tide. At this time, workers need to constantly adjust the cable length. Moreover, when the ship encounters extreme weather during the mooring process, the tension on the cable will fluctuate violently due to the swinging of the ship, resulting in unstable mooring. In addition, if the tension on the cable fluctuates too much, it may increase the risk of cable breakage accidents and fail to meet the needs of stable mooring.

[0003] Therefore, there is an urgent need for a shore-based rotary constant tension mooring system to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a shore-based rotary constant tension mooring system to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a shore-based rotary constant tension mooring system, comprising a working power component, a transmission component and an execution component;

[0006] The working power component includes a plurality of bladder accumulators, the plurality of bladder accumulators are connected by hydraulic pipes, and a bladder accumulator support is fixedly connected to the bottom of the bladder accumulator;

[0007] The transmission component includes a motor, an output end of the motor is fixedly connected to a second coupling, an end of the second coupling away from the motor is fixedly connected to a hydraulic pump, an oil tank is fixedly connected to the bottom surface of the motor, and the hydraulic pump is connected to the oil tank;

[0008] The actuator includes a hydraulic motor, which is connected to the oil tank through a hydraulic pipe. The hydraulic motor is connected to the bladder accumulator through a hydraulic pipe. The output end of the hydraulic motor is fixedly connected to a first coupling. The end of the first coupling away from the hydraulic motor is fixedly connected to the input end of the reducer. The output end of the reducer is fixedly connected to a transmission shaft, a winch is fixedly mounted on the transmission shaft, and a guide door is provided on one side of the reducer.

[0009] Preferably, the guide door includes a guide door support, the top of the guide door support is fixedly connected to an upper limit roller, the upper limit roller is rotatably connected to the upper limit roller, a transverse anti-mopping roller is provided below the upper limit roller, the transverse anti-mopping roller is fixedly connected to the guide door support, the transverse anti-mopping roller is rotatably connected to the transverse anti-mopping roller, one side of the transverse anti-mopping roller is provided with a transverse roller, the transverse roller is located between the transverse anti-mopping roller and the upper limit roller, the transverse roller is rotatably connected to the transverse roller, and a vertical roller is symmetrically provided on the side of the transverse anti-mopping roller away from the transverse roller, the vertical roller is fixedly connected to the guide door support, and the vertical roller is rotatably connected to the vertical roller.

[0010] Preferably, a bearing support is provided on a side of the reducer close to the winch, and the transmission shaft passes through the bearing support and is rotatably connected to the bearing support.

[0011] Preferably, a bearing seat support is fixedly connected to the bottom of the bearing support, and the bearing seat support is fixedly connected to the side wall of the reducer.

[0012] Preferably, fixing clips are symmetrically mounted on the bladder accumulator, and the fixing clips are fixedly connected to the housing via bolts.

[0013] Preferably, a hydraulic motor support is provided on one side of the oil tank, and the hydraulic motor is fixedly installed above the hydraulic motor support.

[0014] Preferably, a nitrogen bottle is provided on a side of the oil tank away from the hydraulic motor support, and the nitrogen bottle is connected to the bladder accumulator through a hydraulic pipe.

[0015] Preferably, a connecting sleeve is fixedly mounted on the motor, and the connecting sleeve is arranged on the outside of the second coupling.

[0016] The present invention discloses the following technical effects: when a ship sailing at sea needs to moor at a port, the guide cable is passed through a guide door, and the direction of the cable is changed through the guide door, and then the cable is tied to the capstan. When the mooring cable is fixed, the motor is started, and the hydraulic motor is driven by the flow of hydraulic oil in the oil tank. The hydraulic motor drives the transmission shaft to rotate through the first coupling and the reducer, and the transmission shaft drives the capstan to rotate, thereby causing the guide cable to retract rapidly. When the cable pulled by the guide cable reaches the specified position of the capstan, the motor stops working, and the cable is tied to the capstan. Then, the motor is started again to tighten the cable. When the tension on the cable reaches the preset tension value, the motor is turned off. At this time, the power of the system is provided by the bladder accumulator, and the cable The tension on the winch is converted into torque on the winch, and the torque is transmitted to the reducer through the drive shaft. The input shaft end of the reducer is connected to the hydraulic motor through a coupling, and the torque acts on the hydraulic motor. At this time, the torque is converted into pressure by the hydraulic motor, and the pressure is dynamically balanced with the pressure in the bladder accumulator (the dynamic balancing process is controlled by PLC. The PLC controls the bladder accumulator 14 to inflate and deflate it according to the different constant tension values ​​of the input cable to reach the corresponding pressure value. When the bladder accumulator 14 reaches the corresponding pressure value, the hydraulic motor 9 is controlled by the PLC to drive, and the winch 2 is driven by the hydraulic motor 9 to achieve dynamic balance). The present invention uses a bladder accumulator as a power source for constant tension in the working stage, which can make the tension on the cable relatively stable when a large ship encounters extreme weather at sea during the mooring process, reducing the situation of cable breakage due to sudden changes in tension. Therefore, it can reduce energy loss under the premise of ensuring a relatively constant tension on the cable, and adopt a hydraulic motor as the main device for maintaining pressure to adjust the length of the cable, solving the problem of excessive or insufficient tension on the cable during high and low tides. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a front view of the execution component of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the guide door of the present invention;

[0021] Figure 4 It is a side view of the guide door of the present invention;

[0022] Figure 5 It is an assembly diagram of the hydraulic motor and the hydraulic motor support of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the transmission component of the present invention;

[0024] In the figure: 1. Drive shaft; 2. Winch; 3. Bearing seat support; 4. Bearing support; 5. Guide door; 6. Reducer; 7. Hydraulic motor support; 8. First coupling; 9. Hydraulic motor; 10. Bladder accumulator support; 12. Fuel tank; 13. Fixing card; 14. Bladder accumulator; 15. Hydraulic pump; 16. Second coupling; 17. Connecting sleeve; 18. Motor; 19. Nitrogen cylinder; 20. Guide door support; 21. Horizontal roller; 22. Horizontal anti-mopping roller; 23. Horizontal roller; 24. Horizontal anti-mopping roller; 25. Upper limit roller; 27. Vertical roller; 28. Upper limit roller; 29. ​​Vertical roller. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-6 As shown, this embodiment provides a shore-based rotary constant tension mooring system, including a working power component, a transmission component and an execution component;

[0028] The working power component includes a plurality of bladder accumulators 14, which are connected by hydraulic pipes. The bottom of the bladder accumulator 14 is fixed with a bladder accumulator support 10;

[0029] The transmission component includes a motor 18, the output end of the motor 18 is fixedly connected to the second coupling 16, the end of the second coupling 16 away from the motor 18 is fixedly connected to the hydraulic pump 15, the bottom surface of the motor 18 is fixedly connected to the oil tank 12, and the hydraulic pump 15 is connected to the oil tank 12;

[0030] The actuator includes a hydraulic motor 9, which is connected to the oil tank 12 through a hydraulic pipe. The hydraulic motor 9 is connected to the bladder accumulator 14 through a hydraulic pipe. The output end of the hydraulic motor 9 is fixedly connected to the first coupling 8. The end of the first coupling 8 away from the hydraulic motor 9 is fixedly connected to the input end of the reducer 6. The output end of the reducer 6 is fixedly connected to the transmission shaft 1. The winch 2 is fixedly mounted on the transmission shaft 1. A guide door 5 is provided on one side of the reducer 6.

[0031] When a ship sailing at sea needs to moor at the port, the guide cable is passed through the guide gate 5, and the direction of the cable is changed through the guide gate 5, and the cable is tied to the capstan 2. When the mooring cable is fixed, the motor 18 is started, and the hydraulic motor 9 is driven by the flow of hydraulic oil in the oil tank 12. The hydraulic motor 9 drives the transmission shaft 1 to rotate through the first coupling 8 and the reducer 6, and the transmission shaft 1 drives the capstan 2 to rotate, thereby causing the guide cable to retract rapidly. When the cable pulled by the guide cable reaches the specified position of the capstan 2, the motor 18 stops working, and the cable is tied to the capstan 2. Then the motor 18 is started again to tighten the cable. When the tension on the cable reaches the preset tension value, the motor 18 is turned off. At this time, the power of the system is provided by the bladder accumulator 14, and the cable The tension on the rope acts on the winch 2 and is converted into torque on the winch 2. The torque is transmitted to the reducer 6 through the drive shaft 1. The input shaft end of the reducer 6 is connected to the hydraulic motor 9 through a coupling, and the torque acts on the hydraulic motor 9. At this time, the torque is converted into pressure by the hydraulic motor 9, and the pressure is dynamically balanced with the pressure in the bladder accumulator 14 (the dynamic balancing process is controlled by the PLC. The PLC controls the bladder accumulator 14 to inflate and deflate it according to the different constant tension values ​​of the input cable to reach the corresponding pressure value. When the bladder accumulator 14 reaches the corresponding pressure value, the PLC controls the hydraulic motor 9 to drive, and the hydraulic motor 9 drives the winch 2 to rotate, thereby achieving dynamic balance). The present invention uses a bladder accumulator 14 as a power source for constant tension in the working stage, which can make the tension on the cable relatively stable when a large ship encounters extreme weather at sea during the mooring process, reducing the situation of cable breakage due to sudden changes in tension. Therefore, it can reduce energy loss while ensuring that the tension on the cable is relatively constant, and adopts a hydraulic motor 9 as the main device for maintaining pressure to adjust the length of the cable, solving the problem of excessive or insufficient tension on the cable during high and low tides.

[0032] To further optimize the solution, the guide door 5 includes a guide door support 20, a top upper limit roller 25 is fixedly connected to the top of the guide door support 20, and the upper limit roller 28 is rotatably connected to the upper limit roller 25, and a horizontal anti-mopping roller 24 is provided below the upper limit roller 28, and the horizontal anti-mopping roller 24 is fixedly connected to the guide door support 20, and the horizontal anti-mopping roller 22 is rotatably connected to the horizontal anti-mopping roller 24, and a horizontal roller 23 is provided on one side of the horizontal anti-mopping roller 22, and the horizontal roller 23 is located between the horizontal anti-mopping roller 22 and the upper limit roller 28, and the horizontal roller 21 is rotatably connected to the horizontal roller 23, and the horizontal anti-mopping roller 22 is symmetrically provided with a vertical roller 29 on the side away from the horizontal roller 23, and the vertical roller 29 is fixedly connected to the guide door support 20, and the vertical roller 27 is rotatably connected to the vertical roller 29. The arrangement of the upper limit roller 28 , the transverse anti-mopping roller 22 , the transverse roller 21 and the vertical roller 27 can change the direction of the cable, thereby facilitating tying the cable to the winch 2 .

[0033] As a further optimization, a bearing support 4 is provided on the side of the reducer 6 close to the capstan 2, through which the transmission shaft 1 passes and is rotatably connected. The bearing support 4 supports the transmission shaft 1 and ensures the rotation performance of the transmission shaft 1, thereby ensuring the stability of the transmission process.

[0034] To further optimize the solution, the bottom of the bearing support 4 is fixedly connected to the bearing seat support 3, and the bearing seat support 3 is fixedly connected to the side wall of the reducer 6. The bearing seat support 3 fixes the bearing support 4, keeps it in a stable state, and makes the overall structure more reliable.

[0035] Further optimizing the scheme, the bladder accumulator 14 is symmetrically mounted with a fixing clip 13, which is fixedly connected to the housing by bolts. The setting of the fixing clip 13 can keep the bladder accumulator 14 in a stable state at all times, prevent shaking, and ensure the stability of the transmission process.

[0036] To further optimize the solution, a hydraulic motor support 7 is provided on one side of the oil tank 12, and the hydraulic motor 9 is fixedly mounted above the hydraulic motor support 7. The hydraulic motor support 7 plays a fixed supporting role for the hydraulic motor 9, making the hydraulic motor 9 run more stably.

[0037] As a further optimization, a nitrogen cylinder 19 is installed on the side of the oil tank 12 away from the hydraulic motor support 7. Nitrogen cylinder 19 is connected to the bladder accumulator 14 via a hydraulic pipe. Nitrogen stored in nitrogen cylinder 19 is used to inflate and deflate the bladder accumulator 14. If different vessels or sea conditions require different constant tensions for mooring, nitrogen cylinder 19 is needed to inflate and deflate the accumulator, thereby changing the output pressure of the bladder accumulator 14.

[0038] In a further optimized solution, a connecting sleeve 17 is fixedly mounted on the motor 18, and the connecting sleeve 17 is sleeved on the outside of the second coupling 16. The connecting sleeve 17 plays a connecting and protective role.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. Shore-based rotary constant tension mooring system, characterized by: Including working power components, transmission components and execution components; The working power component includes a plurality of bladder accumulators (14), the plurality of bladder accumulators (14) are connected by hydraulic pipes, and a bladder accumulator support (10) is fixed to the bottom of the bladder accumulator (14); The transmission component comprises a motor (18), an output end of the motor (18) is fixedly connected to a second coupling (16), an end of the second coupling (16) away from the motor (18) is fixedly connected to a hydraulic pump (15), a bottom surface of the motor (18) is fixedly connected to an oil tank (12), and the hydraulic pump (15) is in communication with the oil tank (12); The actuator comprises a hydraulic motor (9), the hydraulic motor (9) being connected to the oil tank (12) via a hydraulic pipe, the hydraulic motor (9) being connected to the bladder accumulator (14) via a hydraulic pipe, the output end of the hydraulic motor (9) being fixedly connected to a first coupling (8), the end of the first coupling (8) away from the hydraulic motor (9) being fixedly connected to the input end of a reducer (6), the output end of the reducer (6) being fixedly connected to a transmission shaft (1), a winch (2) being fixedly mounted on the transmission shaft (1), and a guide door (5) being provided on one side of the reducer (6); The guide door (5) includes a guide door support (20), a top of the guide door support (20) is fixedly connected to an upper limit roller (25), an upper limit roller (28) is rotatably connected to the upper limit roller (25), a transverse anti-mopping roller (24) is provided below the upper limit roller (28), the transverse anti-mopping roller (24) is fixedly connected to the guide door support (20), a transverse anti-mopping roller (22) is rotatably connected to the transverse anti-mopping roller (24), and the transverse anti-mopping roller (22) is provided below the upper limit roller (28). A transverse roller (23) is provided on one side, the transverse roller (23) is located between the transverse anti-mopping roller (22) and the upper limit roller (28), the transverse roller (21) is rotatably connected to the transverse roller (23), a vertical roller (29) is symmetrically provided on the side of the transverse anti-mopping roller (22) away from the transverse roller (23), the vertical roller (29) is fixedly connected to the guide door support (20), and the vertical roller (27) is rotatably connected to the vertical roller (29).

2. The shore-based rotary constant tension mooring system according to claim 1, characterized in that: A bearing support (4) is provided on a side of the reducer (6) close to the winch (2), and the transmission shaft (1) passes through the bearing support (4) and is rotatably connected to the bearing support (4).

3. The shore-based rotary constant tension mooring system according to claim 2, characterized in that: The bottom of the bearing support (4) is fixedly connected to a bearing seat support (3), and the bearing seat support (3) is fixedly connected to the side wall of the reducer (6).

4. The shore-based rotary constant tension mooring system according to claim 1, characterized in that: A fixing clamp (13) is symmetrically mounted on the bladder accumulator (14), and the fixing clamp (13) is fixedly connected to the housing via bolts.

5. The shore-based rotary constant tension mooring system according to claim 1, characterized in that: A hydraulic motor support (7) is provided on one side of the oil tank (12), and the hydraulic motor (9) is fixedly installed above the hydraulic motor support (7).

6. The shore-based rotary constant tension mooring system according to claim 5, characterized in that: A nitrogen bottle (19) is provided on a side of the oil tank (12) away from the hydraulic motor support (7), and the nitrogen bottle (19) is connected to the bladder accumulator (14) through a hydraulic pipe.

7. The shore-based rotary constant tension mooring system according to claim 1, characterized in that: A connecting sleeve (17) is fixedly mounted on the motor (18), and the connecting sleeve (17) is sleeved on the outside of the second coupling (16).

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