A ship anchor chain tension adaptive anchoring device

Abstract

The present invention relates to the field of ships, and more specifically to a ship anchor chain tension adaptive anchoring device. The device comprises a fixed frame and a sprocket arranged thereon, wherein the fixed frame is provided with a tension adjustment mechanism, wherein the tension adjustment mechanism comprises a movable frame and an adjustment component arranged on the movable frame, wherein the movable frame is movable on the fixed frame, and the fixed frame is further provided with a monitoring component for judging the tension of the anchor chain by monitoring the movement state of the movable frame. The present invention realizes dynamic and precise adjustment of the anchor chain tension through the coordinated work and synchronous relative movement of the upper tensioning wheel and the lower tensioning wheel, thereby avoiding the imbalance problem caused by unilateral adjustment. When the monitoring component detects that the anchor chain is too loose or too tight, the positioning driver adjusts and locks the position of the movable frame to reduce unnecessary movement, and then quickly adjusts the positions of the upper tensioning wheel and the lower tensioning wheel to change the anchor chain tension to ensure that it remains within the normal tension range.

Description

Technical Field

[0001] The present invention relates to the field of ships, and in particular to a ship anchor chain tension adaptive anchoring device. Background Art

[0002] Traditional anchor chain tension adjustment relies primarily on manual adjustments, making it difficult to accurately respond to the dynamic changes in the marine environment. Existing technologies often lack the ability to monitor and automatically adjust anchor chain tension in real time. This can lead to the anchor chain becoming too loose or too tight in varying sea conditions, such as strong winds and high waves. This not only affects the stability and safety of the vessel, but can also cause excessive wear and even damage to the anchor chain and anchoring equipment.

[0003] The currently disclosed Chinese authorization announcement number CN118560638B is an anchor winch with retraction and extension adjustment, including a base, two fixed frames fixedly connected to the top of the base, a motor fixedly connected to one side of the top of the base, the output shaft of the motor fixedly connected to the first rotating rod, the first rotating rod splined to the rotating rack, the base near the motor is horizontally slidably connected to a slide plate, the slide is rotatably connected to the rotating rack, the base near the motor is rotatably connected to a screw rack, the slide plate is vertically slidably connected to sliders symmetrically distributed along the screw rack, the slider has an internal thread, the internal thread of the slider cooperates with the external thread of the screw rack, the slide plate is fixed to a first spring symmetrically distributed along the screw rack, the slide The block is fixed to the adjacent first spring, and a second rotating rod is rotatably connected between the two fixing frames, and the rotating frame is movably connected to the second rotating rod, and the end of the second rotating rod near the first rotating rod is fixed with a rotating disk, and the rotating disk is fixed with an anchor adjustment ball symmetrically distributed along the rotating disk. Initially, the anchor adjustment ball contacts the rotating frame, and the rotating disk is fixed with an anchor release adjustment ball symmetrically distributed along the rotating disk. Initially, a gap for anchor adjustment is left between the anchor release adjustment ball and the rotating frame, and the anchor release adjustment ball and the anchor adjustment ball are alternately distributed, and the second rotating rod is fixed with an anchor hinge plate, and the base is provided with a limiting recovery component for limiting the slider and making the slider move to the initial position of the screw frame.

[0004] According to the above-mentioned patent, the patent does not require changing the motor speed. It only needs to rotate the screw rack forward or reverse to adjust the tightness of the anchor chain or rope during the process of the anchor winch to retract and release the anchor chain or rope. In this way, the safety hazards caused by excessive tightness of the anchor chain or rope are avoided, and the service life of the motor is extended. However, this method relies on the rotation of the screw rack to indirectly adjust the tension of the anchor chain, and may not be able to respond to rapidly changing sea conditions in real time. The rotation direction and speed of the screw rack need to be controlled manually or through a preset program, and the flexibility is relatively poor, making it difficult to automatically adapt to different marine environments. Therefore, there is a need for a ship anchor chain tension adaptive anchoring device that can monitor the anchor chain tension in real time and adjust it in time. Summary of the Invention

[0005] In response to the problems existing in the existing technology, a ship anchor chain tension adaptive anchoring device is provided. Through the coordinated work and synchronous relative movement of the upper tensioning wheel and the lower tensioning wheel, dynamic and precise adjustment of the anchor chain tension is achieved, avoiding the imbalance problem caused by unilateral adjustment. When the monitoring component detects that the anchor chain is too loose or too tight, the positioning drive adjusts and locks the position of the movable frame to reduce unnecessary movement, and then quickly adjusts the position of the upper tensioning wheel and the lower tensioning wheel to change the anchor chain tension to ensure that it remains within the normal tension range.

[0006] In order to solve the problems of the prior art, the present invention provides a ship anchor chain tension adaptive anchoring device, comprising a fixed frame and a sprocket arranged thereon for guiding the retraction and extension of the anchor chain, the fixed frame is provided with a tension adjustment mechanism for dynamically adjusting the anchor chain tension, the tension adjustment mechanism comprises a movable frame and an adjustment component arranged on the movable frame, the movable frame can move on the fixed frame along a direction perpendicular to the lowering of the anchor chain, the fixed frame is further provided with a monitoring component for judging the anchor chain tension by monitoring the moving state of the movable frame, when the movable frame moves back and forth on the fixed frame, the anchor chain is in an overly loose state, and the adjusting component tightens the anchor chain, and when the movable frame moves to one end on the fixed frame, the anchor chain is in an overly tight state, and the adjusting component loosens the anchor chain.

[0007] Preferably, the adjustment assembly includes an upper tensioning wheel and a lower tensioning wheel respectively arranged on one side of the anchor chain and distributed up and down, and the upper tensioning wheel and the lower tensioning wheel can both move toward the direction of the anchor chain on the movable frame. When the upper tensioning wheel and the lower tensioning wheel approach or move away from each other, the anchor chain is in a tightened or relaxed state.

[0008] Preferably, the upper tensioning wheel and the lower tensioning wheel are both rubber wheels. When the upper tensioning wheel and the lower tensioning wheel are squeezed by the anchor chain and do not drive the movable frame to move, the anchor chain is in a normal tensioned state and the anchor chain does not need to be tensioned or adjusted.

[0009] Preferably, buffer layers are provided at both ends of the movable frame in the moving direction to prevent the movable frame from directly colliding with the fixed frame.

[0010] Preferably, a positioning drive is provided on the fixed frame which can stably center the movable frame. When the upper tensioning wheel and the lower tensioning wheel need to adjust the excessively loose anchor chain, the movable frame is in a stable state under the action of the positioning drive, so that the anchor chain can be accurately tensioned and adjusted.

[0011] Preferably, the positioning driver has compression rods symmetrically arranged at both ends of the movable frame and force plates capable of applying pressure to each compression rod, and the force plates can move on the fixed frame in a direction parallel to the movable frame. When the two force plates approach each other, the movable frame is in a gradually stable state under the force state of the compression rods.

[0012] Preferably, slides are provided on the movable frame for the upper tensioning wheel and the lower tensioning wheel to be rotatably connected thereto, and the movable frame has a guide rod slidably connected to the fixed frame, and the guide rod is provided with a tensioning driver for driving the two slides to move synchronously and relative to each other.

[0013] Preferably, the monitoring component includes a tension sensor arranged on the fixed frame and connected to the two ends of the movable frame. The tension sensor has an elastic pull rope. When the anchor chain is too loose, the elastic pull ropes at both ends are in an alternating stretching and relaxing state. When the anchor chain is too tight, the elastic pull rope at one end is always in a stretching state, and the elastic pull rope at the other end is always in a relaxed state.

[0014] Preferably, the fixed frame is provided with compression springs connected to both ends of the movable frame. When all the compression springs are in a normal state, the movable frame is centered on the fixed frame, and the anchor chain is in a normal tensioned state.

[0015] Preferably, the tensioning drive has a winch rotatably arranged on the guide rod and a hard pull rope connecting the winch and each slide. A rope winding rod is provided on the movable frame at the end of each slide's movement, and each hard pull rope is wound out from the outside of the corresponding rope winding rod.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This invention achieves dynamic and precise adjustment of anchor chain tension through the coordinated operation of the upper and lower tensioning pulleys. When the monitoring component detects that the anchor chain is too loose or too tight, the upper and lower tensioning pulleys quickly adjust their positions to change the anchor chain tension, ensuring that the anchor chain remains within the ideal range.

[0018] When the movable frame moves relative to the fixed frame due to the swaying of the anchor chain, the buffer layer on the movable frame effectively absorbs the impact energy, preventing damage caused by direct impact between the movable frame and the fixed frame. This allows the monitoring component to effectively and accurately monitor the tension of the anchor chain in real time, ensuring the safe mooring of the ship in various sea conditions.

[0019] 2. This invention uses a positioning actuator to adjust and lock the position of the movable frame, ensuring precision and stability during anchor chain tensioning. When the monitoring assembly detects that the anchor chain is too loose or too tight, the control system sends a command to the positioning actuator, causing the two force plates to move closer together and apply pressure to the compression rod, guiding the movable frame toward the center position and firmly locking it. This not only reduces unnecessary movement of the movable frame but also provides a solid foundation for the upper and lower tensioning pulleys, enabling them to more effectively perform tensioning tasks.

[0020] Since the movable frame remains stationary during this process, the accuracy of the tensioning operation is guaranteed, and adjustment errors caused by instability are avoided. This enables precise dynamic adjustment of the anchor chain tension and enhances the reliability of the anchor chain's adaptive adjustment.

[0021] 3. This invention uses a tensioning actuator to adjust the slide position, moving the upper and lower tensioning wheels closer or further apart, thereby precisely controlling the anchor chain tension. The synchronized, relative movement of the upper and lower tensioning wheels avoids imbalances caused by unilateral adjustment.

[0022] Furthermore, the state changes of the elastic pull rope and compression spring help monitor the anchor chain tension in real time, ensuring that the movable frame is centered and stable under normal conditions, indicating that the anchor chain tension is appropriate and does not require adjustment. If abnormal anchor chain tension is detected, the upper and lower tensioning pulleys are quickly activated for adaptive adjustment, dynamically adjusting the anchor chain tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of a ship anchor chain tension adaptive anchoring device of the present invention.

[0024] Figure 2 It is a planar cross-sectional view of a ship anchor chain tension adaptive anchoring device of the present invention.

[0025] Figure 3 It is a three-dimensional structural cross-sectional view of a ship anchor chain tension adaptive anchoring device of the present invention.

[0026] Figure 4 It is a partial three-dimensional structural schematic diagram of a ship anchor chain tension adaptive anchoring device of the present invention.

[0027] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of an upper tensioning wheel, a lower tensioning wheel and an anchor chain of a ship anchor chain tension adaptive anchoring device.

[0028] Figure 6 The present invention is a plan view of an anchor chain of a ship anchor chain tension adaptive anchoring device in a normal tensioned state.

[0029] Figure 7 The present invention is a plan view of an anchor chain of a ship anchor chain tension adaptive anchoring device in an over-tensioned state.

[0030] Figure 8 The present invention is a partial three-dimensional structural diagram of a movable frame, a fixed frame and a tension sensor of a ship anchor chain tension adaptive anchoring device.

[0031] Figure 9 It is a three-dimensional structural schematic diagram of a tensioning driver of a ship anchor chain tension adaptive anchoring device of the present invention.

[0032] Figure 10 It is a three-dimensional structural schematic diagram of a positioning driver of a ship anchor chain tension adaptive anchoring device of the present invention.

[0033] The numbers in the figure are: 1. Fixed frame; 11. Positioning drive; 111. Compression rod; 112. Force plate; 2. Anchor chain; 3. Sprocket; 4. Movable frame; 41. Buffer layer; 42. Slide; 43. Guide rod; 44. Tensioning drive; 441. Winch; 442. Rigid pull rope; 4421. Rope winding rod; 5. Adjustment assembly; 51. Upper tensioning pulley; 52. Lower tensioning pulley; 6. Monitoring assembly; 61. Elastic pull rope; 62. Compression spring. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] See also Figures 1-4 As shown, a ship anchor chain tension adaptive anchoring device includes a fixed frame 1 and a sprocket 3 arranged thereon to guide the retraction and extension of the anchor chain 2, the fixed frame 1 is provided with a tension adjustment mechanism for dynamically adjusting the tension of the anchor chain 2, the tension adjustment mechanism includes a movable frame 4 and an adjustment component 5 arranged on the movable frame 4, the movable frame 4 can move on the fixed frame 1 along a direction perpendicular to the downward movement of the anchor chain 2, and the fixed frame 1 is further provided with a monitoring component 6 for judging the tension of the anchor chain 2 by monitoring the movement state of the movable frame 4. When the movable frame 4 moves back and forth on the fixed frame 1, the anchor chain 2 is in an overly loose state, and the adjustment component 5 tightens the anchor chain 2. When the movable frame 4 moves to one end on the fixed frame 1, the anchor chain 2 is in an overly tight state, and the adjustment component 5 loosens the anchor chain 2.

[0036] The fixed frame 1 and the movable frame 4 are detachably connected by a plurality of panels, which is convenient for maintenance.

[0037] On the one hand, when a ship encounters different sea conditions at sea, such as strong winds and waves causing the anchor chain 2 to become too loose, the anchor chain 2 will continue to sway due to the influence of wind and waves. At this time, the anchor chain 2 drives the movable frame 4 to move freely on the fixed frame 1 in a direction perpendicular to the lowering direction of the anchor chain 2. During this process, the monitoring component 6 monitors the movement of the movable frame 4 in real time, thereby responding to changes in the tension of the anchor chain 2 in real time.

[0038] Once the monitoring component 6 detects that the movable frame 4 begins to reciprocate, indicating that the anchor chain 2 is too loose, the monitoring component 6 transmits a signal to the adjustment component 5 through the control system, which then starts tightening the anchor chain 2 to increase the tension of the anchor chain 2 and ensure that the ship does not drift due to the loose anchor chain 2.

[0039] On the other hand, when the vessel is in relatively calm waters, improper adjustment of the lowered anchor may cause excessive tension in the anchor chain 2. In this case, the movable frame 4 is pulled toward the fixed frame 1 by the anchor chain 2. The monitoring component 6 also captures the movement of the movable frame 4 and feeds this information back to the adjustment component 5. Upon receiving the signal, the adjustment component 5 automatically loosens the anchor chain 2, reducing the pressure on the anchor chain 2 and connected equipment, and preventing the risk of wear or breakage caused by excessive tension.

[0040] As the movable frame 4 moves due to the movement of the anchor chain 2, the monitoring component 6 monitors the position of the movable frame 4 in real time, accurately determining the current tension of the anchor chain 2 and enabling the adjustment component 5 to respond promptly and accurately. Based on the data provided by the monitoring component 6, the adjustment component 5 can quickly make adjustments to ensure that the anchor chain 2 is always maintained within the ideal tension range. This allows the tension of the anchor chain 2 to be dynamically adjusted according to actual needs, effectively ensuring the safety and stability of the vessel, whether in harsh marine environments or relatively calm conditions.

[0041] See also Figure 1-Figure 7 As shown, the adjusting assembly 5 includes an upper tensioning wheel 51 and a lower tensioning wheel 52 respectively arranged on one side of the anchor chain 2 and distributed up and down. The upper tensioning wheel 51 and the lower tensioning wheel 52 can both move toward the anchor chain 2 on the movable frame 4. When the upper tensioning wheel 51 and the lower tensioning wheel 52 approach or move away from each other, the anchor chain 2 is in a tightened or relaxed state.

[0042] When the monitoring assembly 6 detects the reciprocating motion of the movable frame 4, it indicates that the anchor chain 2 is too loose. At this point, the upper tensioning wheel 51 and the lower tensioning wheel 52 in the adjustment assembly 5 move closer together in response to the received signal, thereby tightening the anchor chain 2. As the two wheels move closer together, the pressure they exert on the anchor chain 2 increases, causing the anchor chain 2 to be tightened and its tension to increase.

[0043] Conversely, during calm seas, the anchor chain 2 may become over-tensioned. In this case, the movable frame 4 is pulled toward the fixed frame 1 by the anchor chain 2. The monitoring assembly 6 detects this change and instructs the adjustment assembly 5 to loosen the anchor chain 2. At this point, the upper and lower tensioning pulleys 51 and 52 move away from each other, reducing the pressure on the anchor chain 2 and allowing it to slacken, alleviating stress on the anchor chain 2 and its connected equipment.

[0044] See also Figure 2-Figure 7 As shown, the upper tensioning wheel 51 and the lower tensioning wheel 52 are both rubber wheels. When the upper tensioning wheel 51 and the lower tensioning wheel 52 are squeezed by the anchor chain 2 and do not drive the movable frame 4 to move, the anchor chain 2 is in a normal tensioning state, and the anchor chain 2 does not need to be tensioned or adjusted.

[0045] When the anchor chain 2 passes between the upper tensioning wheel 51 and the lower tensioning wheel 52, if the tension of the anchor chain 2 is moderate, the rubber wheel will be subjected to pressure from the anchor chain 2 and will closely adhere to the surface of the anchor chain 2. Due to the elasticity and deformability of rubber material, the rubber wheel can automatically adjust the contact area and pressure distribution according to the actual shape and tension of the anchor chain 2.

[0046] When the anchor chain 2 squeezes the upper and lower tensioning wheels 51, 52, they bear the pressure from the anchor chain 2. However, because the tension of the anchor chain 2 is within the normal range, the upper and lower tensioning wheels 51, 52 do not cause the movable frame 4 to shift in position. In other words, although there is a certain amount of pressure acting on the rubber wheel, because the pressure is within the expected range, it does not cause the movable frame 4 to move relative to the fixed frame 1. Therefore, the monitoring assembly 6 does not detect any movement of the movable frame 4, and the entire movable frame 4 remains stable, indicating that the anchor chain 2 is normally tensioned.

[0047] When the pressure of the anchor chain 2 on the upper tensioning wheel 51 and the lower tensioning wheel 52 exceeds the expected range, the movable frame 4 is driven to move on the fixed frame 1. At this time, the movement status of the movable frame 4 is detected by the monitoring component 6. At this time, the tension of the anchor chain 2 needs to be adjusted by the upper tensioning wheel 51 and the lower tensioning wheel 52.

[0048] Furthermore, compared to hard materials, the softness of rubber effectively reduces direct friction between the anchor chain 2 and the upper and lower tensioning pulleys 51, 52, thereby reducing wear between them. This means that even after prolonged use, the anchor chain 2 and the upper and lower tensioning pulleys 51, 52 can maintain good working condition, extending their service life and reducing maintenance costs.

[0049] See also Figure 2-Figure 4 and Figure 6-Figure 8 As shown, buffer layers 41 are respectively provided at both ends of the movable frame 4 in the moving direction to prevent the movable frame 4 from directly colliding with the fixed frame 1 .

[0050] When the movable frame 4 moves along the fixed frame 1 due to changes in the tension of the anchor chain 2, it may quickly approach the ends of the fixed frame 1 due to excessive external force or inertia. Without the buffer layer 41, direct impact may cause the movable frame 4 and the fixed frame 1 to deform or even break, thereby affecting the normal operation of the monitoring assembly 6.

[0051] The buffer layer 41 is highly elastic and energy-absorbing, absorbing and dissipating the energy generated by an impact. When the movable frame 4 approaches the extreme position of the fixed frame 1, the buffer layer 41 first contacts the fixed frame 1 and, through its own deformation, mitigates the impact force. This not only effectively reduces the risk of damage from an impact, but also reduces noise and vibration, enhancing the stability and durability of the movable frame 4.

[0052] See also Figures 1-4 and Figure 10 As shown, the fixed frame 1 is provided with a positioning driver 11 that can stably center the movable frame 4. When the upper tensioning wheel 51 and the lower tensioning wheel need to adjust the excessively loose anchor chain 2, the movable frame 4 is in a stable state under the action of the positioning driver 11, so that the anchor chain 2 can be accurately tensioned and adjusted.

[0053] When the monitoring assembly 6 detects that the anchor chain 2 is too loose, it indicates that the upper and lower tensioning pulleys 51 and 52 need to tighten the anchor chain 2. To ensure accurate adjustment, the movable frame 4 must first be in a stable state. At this time, the positioning actuator 11 adjusts and locks the position of the movable frame 4, ensuring that it remains precisely in the desired position.

[0054] Once it determines that anchor chain 2 tensioning needs to be adjusted, the monitoring assembly 6 first sends a signal to the positioning actuator 11 via the control system. Upon receiving the signal, the positioning actuator 11 begins to stabilize the movable frame 4, applying appropriate force to push the movable frame 4 to the center position. This stable positioning not only helps reduce any unnecessary movement of the movable frame 4 during adjustment but also provides a solid foundation for the upper and lower tensioning pulleys 51, 52, allowing them to more effectively perform tensioning tasks.

[0055] After the movable frame 4 is accurately positioned and stabilized, the upper tensioning wheel 51 and the lower tensioning wheel 52 can accurately adjust the tension of the slack anchor chain 2 based on the data provided by the monitoring component 6. Since the movable frame 4 remains stationary during this process, the accuracy of the tensioning operation is guaranteed and adjustment errors caused by the instability of the movable frame 4 are avoided.

[0056] See also Figures 1-4 and Figure 10 As shown, the positioning driver 11 has compression rods 111 symmetrically arranged at both ends of the movable frame 4 and force plates 112 that can apply pressure to each compression rod 111. The force plates 112 can move on the fixed frame 1 in a direction parallel to the movable frame 4. When the two force plates 112 approach each other, the movable frame 4 is in a gradually stable state under the force state of the compression rods 111.

[0057] The driving source for driving the force applying plate 112 to move is not shown in the figure.

[0058] When the monitoring assembly 6 detects that the anchor chain 2 is too loose, the control system sends a command to the positioning actuator 11. This actuator then activates, causing the two force-applying plates 112 to begin moving closer together. As the force-applying plates 112 gradually approach, they exert pressure on their respective compression rods 111. Because the compression rods 111 are directly connected to the movable frame 4, the applied pressure causes the movable frame 4 to experience a balanced force from both sides, guiding it toward the center of the fixed frame 1.

[0059] During this process, as the two force-applying plates 112 continue to move inward and apply pressure to the compression rod 111, the movable frame 4 gradually enters a stable state, making it less susceptible to external factors and unnecessary movement. At this point, the movable frame 4 is in a stable locked state, ensuring that it will not move during the anchor chain 2 tensioning operation.

[0060] See also Figures 1-4 、 Figure 9 and Figure 10 As shown, the movable frame 4 is provided with slides 42 for rotating the upper tensioning wheel 51 and the lower tensioning wheel 52, and the movable frame 4 has a guide rod 43 that is slidably connected to the fixed frame 1. The guide rod 43 is provided with a tensioning driver 44 for driving the two slides 42 to move synchronously and relative to each other.

[0061] When the monitoring assembly 6 detects that the anchor chain 2 is too loose, the control system sends a command to the tensioning driver 44. The tensioning driver 44 then causes both slides 42 to move inward simultaneously, driving the upper tensioning wheel 51 and the lower tensioning wheel 52 closer together, increasing pressure on the anchor chain 2 and thereby tightening the anchor chain 2. Conversely, if the anchor chain 2 is detected to be too tight, the tensioning driver 44 drives both slides 42 outward, separating the upper tensioning wheel 51 and the lower tensioning wheel 52, reducing pressure on the anchor chain 2 and thereby loosening it.

[0062] The synchronous and relative movement of the tensioning drive 44 allows for precise and efficient tension adjustment of the anchor chain 2, avoiding imbalances caused by unilateral adjustments. Dynamic adjustment of the anchor chain 2 tension ensures safe mooring of the vessel.

[0063] See also Figures 1-4 and Figure 6-Figure 8 As shown, the monitoring assembly 6 includes a tension sensor arranged on the fixed frame 1 and connected to the two ends of the movable frame 4. The tension sensor has an elastic pull rope 61. When the anchor chain 2 is too loose, the elastic pull ropes 61 at both ends are in an alternating stretching and relaxing state. When the anchor chain 2 is too tight, the elastic pull rope 61 at one end is always in a stretching state, while the elastic pull rope 61 at the other end is always in a relaxed state.

[0064] The detection portion of the tension sensor for specifically detecting the elastic pull rope 61 is not shown in the figure.

[0065] When the anchor chain 2 is too loose, the movable frame 4 will move with the swaying of the anchor chain 2 due to factors such as waves or wind. In this situation, as the movable frame 4 reciprocates, the elastic cord 61 at one end is stretched while the other end is relaxed. This alternating stretching and relaxing pattern indicates that the anchor chain 2 is currently too loose and requires adjustment to increase its tension.

[0066] On the contrary, when the anchor chain 2 is too tight, the over-tensioned anchor chain 2 causes the movable frame 4 to deflect to one side and remain there, rather than moving back and forth as in the overly loose state. In this case, the continuously stretched elastic rope 61 on one side indicates that the anchor chain 2 is under excessive tension and needs to be relieved to prevent damage to the equipment.

[0067] See also Figure 2-Figure 4 and Figure 6-Figure 8 As shown, the fixed frame 1 is provided with compression springs 62 connected to both ends of the movable frame 4. When all the compression springs 62 are in a normal state, the movable frame 4 is centered on the fixed frame 1, and the anchor chain 2 is in a normal tension state.

[0068] When all compression springs 62 are in a normal state, they are neither over-compressed nor over-stretched. The movable frame 4 is centered on the fixed frame 1 and is not subject to any additional pressure or tension from any direction. It remains stably in the center, indicating that the tension in the anchor chain 2 is moderate and does not require adjustment.

[0069] See also Figure 1 、 Figure 9 and Figure 10 As shown, the tensioning drive 44 has a winch 441 rotatably arranged on the guide rod 43 and a hard pull rope 442 connecting the winch 441 and each slide 42. A rope winding rod 4421 is provided on the movable frame 4 at the position of the moving end of each slide 42, and each hard pull rope 442 is wound out from the outside of the corresponding rope winding rod 4421.

[0070] The driving source for driving the winch 441 to rotate is not shown in the figure.

[0071] When the anchor chain 2 is detected as being too loose or too tight, the capstan 441 begins to rotate, retracting and releasing the rigid pull rope 442 based on the information from the monitoring assembly 6. To tighten the anchor chain 2, the capstan 441 pulls the rigid pull rope 442, forcing the two slides 42 closer together. The upper and lower tensioning wheels 51, 52 compress the anchor chain 2, creating a compressed state. Conversely, to loosen the anchor chain 2, the elastic forces of the upper and lower tensioning wheels 51, 52 automatically return to their normal state, forcing the two slides 42 apart.

[0072] As the rigid pull rope 442 is pulled, it winds outward from the rope winding rod 4421, ensuring that the rigid pull rope 442 can smoothly guide the movement of the slide 42. This ensures that even when the slide 42 reaches its limit of movement, the rigid pull rope 442 can maintain the correct angle and tension, avoiding jamming or slipping.

[0073] The present invention achieves dynamic and precise adjustment of the anchor chain 2 tension through the coordinated operation and synchronous relative movement of the upper and lower tensioning wheels 51, 52, avoiding the imbalance caused by unilateral adjustment. When the monitoring component 6 detects that the anchor chain 2 is too loose or too tight, it quickly adjusts the position of the upper and lower tensioning wheels 51, 52 to change the anchor chain 2 tension and ensure that it remains within the normal tension range.

[0074] Before adjusting the slack in the anchor chain 2, the positioning actuator 11 adjusts and locks the position of the movable frame 4, reducing unnecessary movement, providing a solid foundation for tensioning and ensuring operational accuracy. Simultaneously, the state changes of the elastic pull rope 61 and compression spring 62 monitor the tension in the anchor chain 2 in real time, ensuring that the movable frame 4 is centered and stable, indicating that the tension in the anchor chain 2 is moderate and no adjustment is required. This enhances the response speed, accuracy, and reliability of tension adjustment, ensuring safe anchoring of the vessel in various sea conditions.

[0075] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A ship anchor chain tension adaptive anchoring device, comprising a fixed frame and a sprocket arranged thereon for guiding the retraction and extension of the anchor chain; It is characterized by: The fixed frame is provided with a tension adjustment mechanism for dynamically adjusting the tension of the anchor chain, and the tension adjustment mechanism includes a movable frame and an adjustment component provided on the movable frame; The movable frame can move on the fixed frame in a direction perpendicular to the lowering direction of the anchor chain. The fixed frame is also provided with a monitoring component for judging the tension of the anchor chain by monitoring the movement state of the movable frame. When the movable frame reciprocates on the fixed frame, the anchor chain is in an overly loose state, and the adjusting assembly tightens the anchor chain. When the movable frame moves to one end on the fixed frame, the anchor chain is in an overly tight state, and the adjusting assembly loosens the anchor chain. The adjustment assembly includes an upper tensioning wheel and a lower tensioning wheel respectively arranged on one side of the anchor chain and distributed up and down. The upper tensioning wheel and the lower tensioning wheel can both move toward the anchor chain on the movable frame. When the upper tensioning wheel and the lower tensioning wheel move closer to or away from each other, the anchor chain is in a tightened or loosened state. The fixed frame is equipped with a positioning drive that can stabilize the movable frame in the center. When the upper tensioning wheel and the lower tensioning wheel need to adjust the excessive slack of the anchor chain, the movable frame is in a stable state under the action of the positioning drive, so that the anchor chain can be accurately tensioned and adjusted. The positioning driver has compression rods symmetrically arranged at both ends of the movable frame and force plates capable of applying pressure to each compression rod. The force plates can move on the fixed frame in a direction parallel to the movable frame. When the two force plates approach each other, the movable frame is in a gradually stable state under the force state of the compression rods.

2. A ship anchor chain tension adaptive anchoring device according to claim 1, characterized in that: The upper tension wheel and the lower tension wheel are both rubber wheels. When the upper tension wheel and the lower tension wheel are squeezed by the anchor chain and do not drive the movable frame to move, the anchor chain is in a normal tensioned state and no tension adjustment is required at this time.

3. The ship anchor chain tension adaptive anchoring device according to claim 1, characterized in that: The movable frame is provided with buffer layers at both ends of the moving direction for preventing the movable frame from directly colliding with the fixed frame.

4. The ship anchor chain tension adaptive anchoring device according to claim 1, characterized in that: The movable frame is provided with slides for rotating the upper tensioning wheel and the lower tensioning wheel respectively. The movable frame has a guide rod slidably connected to the fixed frame. The guide rod is provided with a tensioning driver for driving the two slides to move synchronously and relatively.

5. The ship anchor chain tension adaptive anchoring device according to claim 4, characterized in that: The monitoring component includes a tension sensor arranged on a fixed frame and connected to both ends of the movable frame. The tension sensor has an elastic pull rope. When the anchor chain is too loose, the elastic pull ropes at both ends are in an alternating stretching and relaxing state. When the anchor chain is too tight, the elastic pull rope at one end is always in a stretching state, while the elastic pull rope at the other end is always in a relaxed state.

6. A ship anchor chain tension adaptive anchoring device according to claim 5, characterized in that: The fixed frame is provided with compression springs connected to both ends of the movable frame. When all the compression springs are in a normal state, the movable frame is centered on the fixed frame, and the anchor chain is in a normal tensioned state.

7. The ship anchor chain tension adaptive anchoring device according to claim 4, characterized in that: The tensioning drive has a winch rotatably arranged on a guide rod and a hard pull rope connecting the winch and each slide. A rope winding rod is provided on the movable frame at the end of each slide's movement, and each hard pull rope is wound out from the outside of the corresponding rope winding rod.

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