Anchor chain ring torsion correcting device

Abstract

The invention discloses an anchor chain ring torsion correction device, and belongs to the technical field of chain ring correction devices. Comprising a main supporting assembly arranged above an anchor chain wheel in a crossing mode, base assemblies used for being clamped into chain wheel grooves are symmetrically arranged at the two ends of the main supporting assembly, and a traction assembly is fixed to the outer side; a horizontal stress panel is fixed to the top of the main supporting assembly, an inclined stress assembly with an inclined face is arranged on the side edge area of the main supporting assembly, and the inclined stress assembly is of a fixed folding structure or a folding structure driven by an internal transmission unit to be unfolded. The horizontal stress panel is used for bearing a torsion anchor chain pressed down by gravity, the anchor chain is forced to be forcibly turned over and reset towards the non-blocking side by means of one-way blocking of the inclined stress assembly, and safe and automatic correction conforming to the gravity is achieved by combining the mechanical initial positioning or internal linkage expansion locking function of the device. The operator can be far away from a dangerous area in the correction period, and the intrinsic safety and the operation efficiency of ship anchor throwing and weighing operation are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of chain link straightening devices, and more particularly to an anchor chain link torsion straightening device. Background Technology

[0002] During anchoring and raising operations, the anchor chain is a crucial load-bearing component connecting the hull and the anchor. Common marine anchor chains consist of interlocking horizontal and vertical rings strung together at 90-degree angles. During normal anchoring, the anchor chain, pulled by the anchor winch, passes through the chain guide rollers, where the vertical rings smoothly engage in specific guide slots on the sprocket, while the horizontal rings lie flat against the sprocket surface, achieving a smooth raising and lowering. However, due to the impact of ocean currents, ship yaw, or the anchor capsizing on the seabed, the anchor chain suspended in the water is prone to twisting. When a twisted anchor chain is pulled to the anchor winch, the vertical rings, which should have entered the guide slots vertically, will deflect 90 degrees to become horizontal rings, failing to engage in the sprocket guide slots. This can cause the anchor chain to jam or skip teeth, necessitating a halt to the anchoring operation. Faced with such a sudden situation of anchor chain twisting and misalignment, crew members can usually only use conventional and simple tools such as wire ropes, hand-operated hoists, or large crowbars to get close to the anchor chain, which is under great stress, and forcefully pry or pull the misaligned links by manpower in an attempt to turn them back to the correct position.

[0003] The existing method of manually forcibly flipping misaligned anchor links at close range using simple tools poses safety hazards. Due to the extreme weight of the suspended anchor chain and the unpredictable dynamic high tension brought by the waves, the anchor chain is prone to sudden release when manually prying or pulling. This can cause the heavy anchor chain to swing uncontrollably or the pulling tool to break off, posing a safety hazard to crew members in the close working area.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] This invention provides an anchor chain link torsion correction device to solve the technical problems of uncontrollable dynamic high tension release and high operational risk associated with existing methods of manually correcting misaligned chain links using simple tools.

[0006] The present invention adopts the following technical solution: an anchor chain link torsion correction device. It includes a main support assembly, which is horizontally disposed above the anchor chain wheel, providing a load-bearing foundation for the overall correction device;

[0007] An arc-shaped base is symmetrically arranged at both ends of the main support component to be inserted into the sprocket groove of the anchor sprocket for initial positioning;

[0008] A traction assembly, which is fixed to the outer side of the main support assembly, has a traction hole for inserting a traction rope to guide the device to move into place;

[0009] A horizontal load-bearing panel, fixed to the top of the main support assembly, is used to support the anchor chain which is in a torsional state and under the pressure of gravity.

[0010] An inclined force-bearing component, mounted on the horizontal force-bearing panel, is used to prevent the downward-pressing anchor chain from tilting to that side, thereby forcing the anchor chain to forcibly flip to the opposite side to complete the correction.

[0011] Furthermore, the main support component is a single-layer main support plate, the traction component is a triangular eye plate welded between the two sides of the main support plate and the horizontal force-bearing panel, and the inclined force-bearing component includes a support side plate and an inclined force-bearing panel. The support side plate is vertically welded to the edge of the horizontal force-bearing panel, and one end of the inclined force-bearing panel is welded between one-third of the length of the horizontal force-bearing panel and one end of the support side plate, and its surface forms the inclined surface.

[0012] Furthermore, the main support component is a hollow main support base, the traction component is a triangular eye plate welded between the two sides of the main support base and the horizontal force-bearing panel, the inclined force-bearing component includes two symmetrically arranged folding panels, and two symmetrical receiving grooves are correspondingly opened on the horizontal force-bearing panel at / position. The folding panels are rotatably arranged in the receiving grooves, initially parallel to the surface of the horizontal force-bearing panel, and form a force-bearing panel after unfolding.

[0013] Furthermore, an adapter seat is fixed to the bottom surface of the folding panel, and a swing support rod is hinged to the adapter seat via a pin. A limit sliding shaft is fixed to the other side of the swing support rod. Limit sliding grooves are opened on both sides of the inner wall of the receiving sink. The limit sliding shaft slides in the limit sliding groove to provide support when the folding panel is unfolded. A through groove is opened on the upper surface of the receiving sink.

[0014] Furthermore, it also includes a transmission unit, which includes a lifting assembly for selectively lifting any of the folding panels according to actual needs. The lifting assembly includes a main rotating shaft with a horizontal bearing disposed in the main support seat, and two lifting cams fixedly sleeved on the main rotating shaft. The two lifting cams are respectively located directly below the corresponding through slots to lift the two folding panels respectively. The width direction of the through slots covers the rotation path of the lifting cams.

[0015] Furthermore, a main support block for auxiliary support of the main rotating shaft is fixed inside the main support base, and an auxiliary support block is vertically fixed on the bottom surface of the main support base. Four auxiliary support blocks are sleeved on the main rotating shaft, and each pair clamps one of the lifting cams. The tips of the two lifting cams are arranged in a staggered manner, so that when the main rotating shaft is controlled to rotate to the left, one of the lifting cams lifts the corresponding folding panel upward, while the other does not contact the folding panel. The opposite is true when rotating to the right.

[0016] Furthermore, the transmission unit also includes a drive unit, which includes a worm gear, a worm, and a control handwheel. The worm gear is coaxially fixedly sleeved on the main rotating shaft, and the worm is rotatably mounted on the main support seat and meshes with the worm gear. One end of the worm passes through the main support seat and is fixed with the control handwheel for providing manual input power.

[0017] Furthermore, the transmission unit also includes two tensioning units arranged in an alternating manner to keep the torsion correction device locked inside the anchor chain wheel without manual intervention. Each tensioning unit includes a side support plate, a driving bevel gear, and a driven bevel gear. The side support plate is vertically fixed to the bottom surface of the inner wall of the main support base and located on one side of the main rotating shaft. The driving bevel gear is coaxially fixedly sleeved on the main rotating shaft. A transmission shaft is provided through a horizontal bearing on the side support plate. The driven bevel gear is fixed to one end of the transmission shaft and meshes with the driving bevel gear.

[0018] Furthermore, the tensioning unit also includes a push cam, a guide slide rod, and a wedge-shaped push block. A guide bracket is vertically fixed to the top of the inner wall of the main support seat. The push cam is fixed to the other end of the transmission shaft and has two tips. The two tips of the push cams of the two tensioning units are in a vertical state by default, so that the wedge-shaped push block can be pushed regardless of whether the main rotating shaft is driven to turn left or right. Several guide slide rods are arranged parallel to each other vertically. Among them, several guide slide rods corresponding to the two tensioning units extend outward in opposite directions and are respectively movably inserted through the guide bracket, both ends of the main support seat, and the arc-shaped base on the corresponding side. The wedge-shaped push block is fixed to one end of the several guide slide rods that extends into the main support seat, and is used to convert the thrust of the push cam into a lateral tensioning force.

[0019] Furthermore, the tensioning unit also includes two symmetrically arranged tensioning seats, which are respectively connected to the guide slide rods of the corresponding side tensioning units. A return spring is sleeved on the guide slide rod, and the two ends of the return spring are respectively connected to the side of the wedge-shaped push block and the side of the guide bracket. The tensioning seat is initially fitted to the arc-shaped base, and a silicone anti-slip pad is provided at the contact position between the surface of the tensioning seat and the groove of the anchor chain wheel.

[0020] The technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0021] An anchor chain link torsion correction device is disclosed. This invention utilizes the cooperation of a main support component, a horizontal force-bearing panel, and an inclined force-bearing component. It leverages the weight and downward pressure of the anchor chain as it slowly loosens, and forces the misaligned link to flip towards the unobstructed opposite side through unidirectional obstruction on the inclined surface of the side area. This transforms the previously difficult-to-control manual prying into a natural correction guided by gravity. Simultaneously, the symmetrically arranged arc-shaped base, combined with a traction component featuring traction holes, facilitates quick adaptation of the device to the sprocket groove and allows for long-distance guidance into position. More importantly, when the inclined force-bearing component employs a folding structure, this invention integrates a transmission unit. Through internal mechanical transmission, the corresponding inclined force-bearing component can be synchronously driven to unfold upwards, and the base components on both sides extend laterally outwards, tightening and locking into the groove. Not only does it achieve adaptive deployment of the display board based on the direction of torsion, eliminating the need for manual prediction and reversal placement, but it also ensures an absolutely rigid locking state between the device and the anchor chain wheel. Throughout the entire correction process, operators only need to complete the initial positioning and triggering before they can completely evacuate to a safe area. This avoids the need to hold or continuously pull the equipment at close range in dangerous areas, eliminating the safety hazards caused by the instantaneous release of mechanical stress or tool slippage and disengagement, and improving the inherent safety level and operational efficiency of ship anchoring operations. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0023] In the attached diagram:

[0024] Figure 1 This is an overall schematic diagram of an anchor chain link torsion correction device according to this application;

[0025] Figure 2 A top view schematic diagram of a torsion correction device for anchor chain links;

[0026] Figure 3 This is a schematic diagram of the lifting component structure;

[0027] Figure 4 for Figure 3 Schematic diagram of the unfolded state of the folding panel;

[0028] Figure 5 for Figure 4 A magnified structural diagram at point A;

[0029] Figure 6 for Figure 4 A schematic diagram of a partial structure;

[0030] Figure 7 for Figure 6 A magnified structural diagram at point B;

[0031] Figure 8 for Figure 6 A schematic diagram of a partial structure;

[0032] Figure 9 for Figure 8 A magnified structural diagram at point C;

[0033] Figure label:

[0034] 1. Main support plate; 2. Arc-shaped base; 3. Triangular eye plate; 31. Traction hole; 4. Horizontal force-bearing panel; 5. Support side plate; 6. Inclined force-bearing panel; 61. Inclined surface; 41. Accommodating sink; 42. Folding panel; 421. Adapter seat; 43. Swing strut; 431. Limiting slide shaft; 44. Limiting slide groove; 45. Through groove; 7. Lifting assembly; 71. Main support seat; 72. Main rotating shaft; 721. Main support block; 73. Auxiliary support block; 74. Lifting cam; 75. Side support plate; 76. Worm gear; 77. Worm; 78. Control handwheel; 79. Driving bevel gear; 710. Guide bracket; 711. Transmission shaft; 712. Driven bevel gear; 713. Push cam; 714. Guide slide rod; 715. Wedge-shaped push block; 716. Tensioner seat; 717. Return spring. Detailed Implementation

[0035] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0036] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Reference Figures 1-2 As shown, this embodiment of the invention provides an anchor chain link torsion correction device, which is mainly used to solve the safety hazard problem of manual close-range forced correction when the anchor chain is torn and misaligned during the anchoring process of a ship. Overall, the torsion correction device includes a main support component, a base component, a traction component, a horizontal force-bearing panel 4, and an inclined force-bearing component.

[0038] The main support assembly is positioned across the top of the anchor chain wheel, providing a bearing base for the overall straightening device. The base assembly consists of symmetrically arranged arc-shaped bases 2 at both ends of the main support assembly, the curvature of which matches the shape of the anchor chain wheel. These bases are used to engage with the sprocket groove of the anchor chain wheel for initial positioning. The traction assembly is fixed to the outer side of the main support assembly and has traction holes 31 for inserting traction ropes to guide the device into position. The horizontal force-bearing panel 4 is fixed to the top of the main support assembly and is used to support the anchor chain in a torsional state and under the pressure of gravity. The inclined force-bearing assembly is located on the side of the horizontal force-bearing panel 4 and has an inclined surface 61. This surface is used to unidirectionally prevent the anchor chain from tilting to that side. By utilizing the pressure of the anchor chain's own weight, the anchor chain is forced to flip to the unobstructed opposite side, thereby completing the correction of the 90-degree torsional misalignment.

[0039] To meet the needs of different operating scenarios, this invention provides two specific embodiments:

[0040] As one embodiment of this application, this embodiment mainly provides a basic, highly reliable correction structure without moving parts. Specifically, the main support component is a single-layer main support plate 1. To adapt to anchor sprockets of different specifications and models in actual production, the overall height of the two arc-shaped bases 2 and the main support plate 1 can be adjusted according to the sprocket groove size of the anchor sprocket. At the same time, the distance between the two arc-shaped bases 2 can also be flexibly adjusted according to the guide groove width of the guide roller. Correspondingly, the overall size of the horizontal force-bearing panel 4 is adjusted synchronously with the distance between the two arc-shaped bases 2, and to prevent mechanical interference during operation, the edge of the horizontal force-bearing panel 4 is limited to not exceeding the sprocket edge of the anchor sprocket.

[0041] The traction assembly consists of triangular eye plates 3 welded between the main support plate 1 and the horizontal load-bearing panel 4 on both sides. The dimensions of the triangular eye plates 3 are adapted to the dimensions of the main support plate 1 and the horizontal load-bearing panel 4 to ensure connection stability and support reliability. The inclined load-bearing assembly adopts a fixed design, including a support side plate 5 and an inclined load-bearing panel 6. The support side plate 5 is vertically welded to the edge of the horizontal load-bearing panel 4, and its position is adapted to the spatial distance between the inclined load-bearing panel 6 and the horizontal load-bearing panel 4 to achieve the strongest support and reinforcement for the inclined load-bearing panel 6. One end of the inclined load-bearing panel 6 is welded at one-third of its length from the horizontal load-bearing panel 4, and the other end is welded to the top of the support side plate 5. In this layout, the plate of one-third of the width of one side of the horizontal load-bearing panel 4, together with the inclined load-bearing panel 6 and the support side plate 5, forms a rigid columnar structure with an isosceles right-angled triangle in cross-section. This isosceles right-angled triangle geometry improves compressive strength, making the inclined load-bearing panel 6 the main load-bearing structure that influences and forces the anchor chain to turn.

[0042] Normally, during anchor chain deployment and retrieval, the horizontal and vertical links are arranged alternately at a 90-degree angle, meaning all vertical links and all horizontal links are in the same plane, and the links on the anchor chain ratchet and those sliding into the guide roller grooves are all vertical links. However, if the anchor chain twists during deployment, the vertical links that should have slid into the guide roller grooves may twist 90 degrees to either side, failing to slide into the grooves and instead becoming horizontal links. This indicates a problem of anchor chain link misalignment.

[0043] At this point, the crew must pause anchoring operations and determine the direction of the anchor chain's rotation. If it is observed to be twisting to the left, place the device under the link that needs correction, insert the arc-shaped base 2 into the guide groove for positioning, and ensure that the side with the inclined force-bearing panel 6 is on the left (if it is twisting to the right, reverse the device's direction). Then, thread the steel wire rope through the traction hole 31 of the triangular eye plate 3 and pull it, maneuvering the anchor winch to slowly release the anchor chain. Pull the steel wire rope so that the device moves with the guide roller and the anchor chain until the anchor chain link presses against the horizontal force-bearing panel 4 of the device. At this point, the device is clamped between the anchor chain link and the guide roller, and personnel no longer need to pull the device and can retreat to a safe area.

[0044] Continue to slowly release the anchor chain. Under the combined force of the heavy anchor weight and the weight of the already released portion of the anchor chain, the vertical link pressing on the horizontal load-bearing panel 4 will inevitably flip to both sides (fall down) to release stress. However, when it attempts to flip to the inclined load-bearing panel 6, it will be firmly blocked by the inclined surface 61. Therefore, the link can only eventually flip to the opposite side of the inclined load-bearing panel 6 due to gravity. This flipping action just cancels and corrects the 90-degree angle that was already twisted and misaligned, thus ensuring that the anchor chain is restored to smooth operation. Continue to send out the anchor chain. When the corrected link moves past the guide roller, the device loses the upper pressure and automatically disengages from the guide roller under its own weight. At this time, the crew holds the steel wire on the triangular eye plate 3 to prevent the device from falling and damaging the deck, thus completing the correction operation.

[0045] As another embodiment of this application, such as Figures 3-9 As shown, this embodiment is designed to address the safety concerns of manually determining the direction of twist and turning the device around in the above embodiments, as well as the need to continuously pull the steel wire rope to prevent slippage.

[0046] In this embodiment, the main support component is replaced by a hollow box-shaped rigid main support base 71. The traction component is also a triangular eye plate 3 welded between the two sides of the main support base 71 and the horizontal force-bearing panel 4. The triangular eye plate 3 not only serves as a traction force-bearing point, but also constitutes a high-strength reinforcing rib (reinforcing bar), effectively dispersing stress and improving the bending and shear strength between the horizontal force-bearing panel 4 and the main support base 71. The inclined force-bearing component is designed as a heavy-duty folding structure that can be unfolded in both directions according to actual needs. It includes two symmetrically arranged high-strength steel folding panels 42. Two symmetrical receiving grooves 41 are opened on the horizontal force-bearing panel 4 at 1 / 3 of the total length. The folding panels 42 are rotatably arranged in the receiving grooves 41. In the initial state, they are parallel to the surface of the horizontal force-bearing panel 4 to form a continuous and flat bearing surface that can withstand the vertical impact and static pressure of several tons of anchor chain. After unfolding, it forms a high-strength force-bearing panel, which is sufficient to resist the lateral impact force released by the giant anchor chain at the moment of forced flipping and reset.

[0047] To ensure that the folding panel 42 does not collapse mechanically when subjected to the weight of several tons of anchor chain, a rigid locking mechanism is provided at its bottom. The bottom surface of the folding panel 42 is fixedly welded with an adapter 421, and a swing support rod 43 is hinged to the adapter 421 via a pin. The other end of the swing support rod 43 is fixed with a limiting slide shaft 431. At the same time, limiting slide grooves 44 are opened on both sides of the inner wall of the receiving trough 41. The limiting slide shaft 431 slides in the limiting slide groove 44. When the folding panel 42 is lifted and unfolded, the swing support rod 43 extends accordingly, and the limiting slide shaft 431 at its bottom slides to the end of the slide groove to form a rigid dead point support, directly transmitting the downward pressure to the main support seat 71.

[0048] To achieve bidirectional selective deployment of a single power source, a transmission unit is installed inside the main support base 71. This transmission unit includes a lifting assembly 7, which includes a main rotating shaft 72 with a horizontal bearing installed inside the main support base 71, and two lifting cams 74 fixedly sleeved on the main rotating shaft 72. To cooperate with the operation of the lifting cams 74, a through groove 45 is provided on the upper surface of the receiving groove 41. The two lifting cams 74 are respectively located directly below the corresponding through groove 45, and the width direction of the through groove 45 covers the rotation path of the lifting cam 74.

[0049] Inside the main support base 71, there are a main support block 721 and an auxiliary support block 73 for auxiliary support of the main rotating shaft 72. Four auxiliary support blocks 73 are sleeved on the main rotating shaft 72, and two blocks are arranged in a group to hold a lifting cam 74. This ensures that the lifting cam 74 does not deflect under high pressure. The tips of the two lifting cams 74 are arranged in a relatively staggered manner (for example, 180 degrees apart or at a specific angle). The function is that when the main rotating shaft 72 is controlled to rotate 90 degrees to the left, only one lifting cam 74 lifts the corresponding folding panel 42 upward, while the other rotates to the neutral area and does not contact the folding panel 42. The opposite is true when rotating 90 degrees to the right. This achieves the mutual exclusion control of the left / right unfolding of the folding panel 42.

[0050] A drive unit is provided to provide power to the transmission unit. The drive unit includes a worm gear 76, a worm 77, and a control handwheel 78. The worm gear 76 is coaxially fixedly sleeved on the main rotating shaft 72. The worm 77 is rotatably mounted on the main support seat 71 and meshes with the worm gear 76. One end of the worm 77 passes through the main support seat 71 and is fixed with the control handwheel 78. The worm gear 76 and worm 77 mechanism not only has the characteristics of saving effort, but also has an irreversible mechanical self-locking function to ensure that the folding panel 42 will not collapse due to gravity after it is raised.

[0051] Furthermore, in order to achieve automatic locking without manual assistance after the device is placed in the guide groove, the transmission unit also integrates two tensioning units arranged in an alternating manner. The tensioning unit includes a side support plate 75, a driving bevel gear 79, and a driven bevel gear 712. The side support plate 75 is vertically fixed to the bottom surface of the inner wall of the main support base 71. The driving bevel gear 79 is coaxially fixed on the main rotating shaft 72. A horizontal bearing is provided through the transmission shaft 711 on the side support plate 75. The driven bevel gear 712 is fixed to one end of the transmission shaft 711 and meshes with the driving bevel gear 79, thereby converting the longitudinal rotation into the transverse rotational motion.

[0052] The tensioning unit further converts rotation into linear thrust through a cam mechanism, specifically including a push cam 713 fixed to the other end of the drive shaft 711, a guide slide 714, and a wedge-shaped push block 715. A guide bracket 710 is vertically fixed to the top of the inner wall of the main support seat 71. The push cam 713 has two symmetrical tips. The wedge-shaped push block 715 is suitable to always be in contact with the surface of the push cam 713, and both tips are in a vertical state by default when in the initial zero position. This symmetrical design allows the push cam 713 to stably push the wedge-shaped push block 715 on one side to translate outward, regardless of whether the main rotating shaft 72 is driven to rotate 90 degrees to the left or right.

[0053] Several guide slide rods 714 are arranged parallel to each other vertically. Several guide slide rods 714 corresponding to the two tensioning units extend outward in opposite directions and are respectively movably inserted through the two ends of the guide bracket 710, the main support seat 71, and the arc-shaped base 2 on the corresponding side. A wedge-shaped push block 715 is fixed to one end of several guide slide rods 714 that extends into the main support seat 71. The end of the tensioning unit is a tensioning seat 716, which is fixed to the outer end of the corresponding guide slide rod 714. A return spring 717 is sleeved on the guide slide rod 714. The two ends of the return spring 717 abut against the side of the wedge-shaped push block 715 and the guide bracket 710, respectively. In the initial state, the tensioning seat 716 is attached to the arc-shaped base 2, and its surface is provided with a silicone anti-slip pad to increase the friction between it and the inner wall of the sprocket groove.

[0054] Working principle: When a 90-degree twist or misalignment of the chain links is detected during the anchor chain deployment or retrieval process, the anchor winch operation is suspended. Because this embodiment features bidirectional selective deployment, the operator does not need to predict the specific twist direction of the anchor chain beforehand. The device is directly placed horizontally across the guide groove of the chain guide roller, with the two arc-shaped bases 2 initially engaging the grooves. At this point, both folding panels 42 are neatly folded into the receiving trough 41, and the tensioning seat 716 at the bottom is in a retracted state, allowing the device to be easily and unobstructedly inserted.

[0055] The operator observes the specific twisting direction of the anchor chain and rotates the external control handwheel 78 accordingly. For example, if the anchor chain twists to the left, the handwheel is rotated 90 degrees to the left; conversely, it is rotated to the right. This single power input drives the worm gear 77 to rotate the worm wheel 76 and the main rotating shaft 72, triggering two mechanical linkages inside the device. The main rotating shaft 72 drives the staggered lifting cams 74 to rotate. The left lifting cam 74 lifts the corresponding folding panel 42 upward, and the bottom swing support rod 43 slides to the end of the limit groove 44 to form a rigid dead point support. Meanwhile, the right lifting cam 74 rotates into neutral, and the right folding panel 42 remains flat and bears the load.

[0056] The main rotating shaft 72 synchronously drives the active bevel gear 79, which drives the cam 713 to rotate after reversing. The cam 713 pushes the wedge-shaped push blocks 715 on both sides, overcoming the elastic force of the return spring 717 and moving outward laterally. Through the guide slide rod 714, the tension seats 716 at both ends of the device are forced to expand outward with great force. The tension seats 716 with silicone anti-slip pads are supported on the inner wall of the anchor chain wheel groove, realizing the automatic clamping and fixing of the device.

[0057] After completing the above single-handed operation, the device has generated the corrected inclined plane in the correct direction and formed an absolutely rigid lock with the anchor chain wheel. The operator can then retreat to a safe area, eliminating the risk that in Embodiment 1, the operator must manually hold the corrected device near the anchor chain in a dangerous area.

[0058] Subsequently, simply thread the wire rope through the traction hole 31 of the triangular eye plate 3 as a fall-prevention safety rope (no continuous manual pulling is required). Operate the anchor winch to slowly release the anchor chain. Since this device is firmly locked in the sprocket groove by the tension seat 716, it will automatically rotate synchronously with the guide chain roller until the taut torsional anchor chain link presses onto the horizontal force-bearing panel 4 of this device. The compressed link will flip to both sides to release stress. When it attempts to tilt to the rising side, it is blocked by the high-strength folding panel 42. With the self-locking characteristics of the worm gear 76 and worm 77 and the dead-point rigid support of the swing strut 43, the folding panel 42 resists the instantaneous lateral impact force. Therefore, the link can only be forced to flip to the opposite side by gravity, thus restoring the vertical link to a vertical link and the horizontal link to a horizontal link.

[0059] Continue feeding the anchor chain. Once the corrected chain link smoothly passes the guide roller, the operator approaches the device again and reverses the control handwheel 78 back to the initial zero position. The lifting cam 74 returns to neutral, and the unfolded folding panel 42 automatically lowers to a level position after losing its lifting force. At the same time, the push cam 713 makes room, and under the pull of the return spring 717, the wedge push block 715 retracts, and the tension seats 716 on both sides retract inward and disengage from the inner wall of the sprocket groove, releasing the locked state. At this time, the entire correction device returns to its initial relaxed state, and the operator removes it from the guide groove, completing the anchor chain torsion correction operation.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A torsion correction device for anchor chain links, characterized in that, include The main support assembly, which spans across and is positioned above the anchor sprocket, serves to provide a load-bearing foundation for the overall straightening device; Arc-shaped base (2) is symmetrically arranged at both ends of the main support component and is used to engage with the sprocket groove of the anchor sprocket to achieve initial positioning; A traction assembly, which is fixed to the outer side of the main support assembly, has a traction hole (31) for inserting a traction rope to guide the device to move into place; A horizontal force-bearing panel (4) is fixed to the top of the main support assembly and is used to support the anchor chain which is in a torsional state and is pressed down by gravity. An inclined force-bearing component is installed on the horizontal force-bearing panel (4) to prevent the downward-pressing anchor chain from tilting to one side, so as to force the anchor chain to flip to the opposite side to complete the correction.

2. The anchor chain link torsion correction device according to claim 1, characterized in that, The main support component is a single-layer main support plate (1), the traction component is a triangular eye plate (3) welded between the two sides of the main support plate (1) and the horizontal force-bearing panel (4), the inclined force-bearing component includes a support side plate (5) and an inclined force-bearing panel (6), the support side plate (5) is vertically welded to the edge of the horizontal force-bearing panel (4), and one end of the inclined force-bearing panel (6) is welded between 1 / 3 of the length of the horizontal force-bearing panel (4) and one end of the support side plate (5), and its surface forms an inclined surface (61).

3. The anchor chain link torsion correction device according to claim 1, characterized in that, The main support component is a hollow main support base (71), the traction component is a triangular eye plate (3) welded between the two sides of the main support base (71) and the horizontal force-bearing panel (4), the inclined force-bearing component includes two symmetrically arranged folding panels (42), the horizontal force-bearing panel (4) has two symmetrical receiving grooves (41) at 1 / 3 position, the folding panels (42) are rotatably arranged in the receiving grooves (41), initially parallel to the surface of the horizontal force-bearing panel (4), and form a force-bearing panel after unfolding.

4. The anchor chain link torsion correction device according to claim 3, characterized in that, The bottom surface of the folding panel (42) is fixed with an adapter (421), and a swing support rod (43) is hinged to the adapter (421) by a pin. The other end of the swing support rod (43) is fixed with a limiting slide shaft (431). Limiting slide grooves (44) are opened on both sides of the inner wall of the receiving sink (41). The limiting slide shaft (431) slides in the limiting slide groove (44) to provide support when the folding panel (42) is unfolded. A through groove (45) is opened on the upper surface of the receiving sink (41).

5. The anchor chain link torsion correction device according to claim 4, characterized in that, It also includes a transmission unit, which includes a lifting assembly (7) for selectively lifting any of the folding panels (42) according to actual needs. The lifting assembly (7) includes a main rotating shaft (72) with a horizontal bearing set in the main support seat (71), and two lifting cams (74) fixedly sleeved on the main rotating shaft (72). The two lifting cams (74) are respectively located directly below the corresponding through groove (45) to lift the two folding panels (42) respectively. The width direction of the through groove (45) covers the rotation path of the lifting cam (74).

6. The anchor chain link torsion correction device according to claim 5, characterized in that, The main support base (71) has a main support block (721) fixed inside for auxiliary support of the main rotating shaft (72). The bottom surface of the main support base (71) is vertically fixed with an auxiliary support block (73). The main rotating shaft (72) is fitted with four auxiliary support blocks (73), and each pair clamps one lifting cam (74). The tips of the two lifting cams (74) are arranged in a staggered manner. When the main rotating shaft (72) is controlled to rotate 90 degrees to the left, one lifting cam (74) lifts the corresponding folding panel (42) upward, while the other does not contact the folding panel (42). The opposite is true when rotating 90 degrees to the right.

7. The anchor chain link torsion correction device according to claim 6, characterized in that, The transmission unit also includes a drive unit, which includes a worm gear (76), a worm (77), and a control handwheel (78). The worm gear (76) is coaxially fixed on the main rotating shaft (72). The worm (77) is rotatably mounted on the main support seat (71) and meshes with the worm gear (76). One end of the worm (77) passes through the main support seat (71) and is fixed with the control handwheel (78) for providing manual input power.

8. The anchor chain link torsion correction device according to claim 7, characterized in that, The transmission unit also includes two tensioning units arranged in an alternating manner to keep the torsion correction device locked inside the anchor chain wheel without manual assistance. The tensioning unit includes a side support plate (75), a driving bevel gear (79), and a driven bevel gear (712). The side support plate (75) is vertically fixed to the bottom surface of the inner wall of the main support seat (71) and located on one side of the main rotating shaft (72). The driving bevel gear (79) is coaxially fixedly sleeved on the main rotating shaft (72). A transmission shaft (711) is provided through a horizontal bearing on the side support plate (75). The driven bevel gear (712) is fixed to one end of the transmission shaft (711) and meshes with the driving bevel gear (79).

9. The anchor chain link torsion correction device according to claim 8, characterized in that, The tensioning unit also includes a push cam (713), a guide slide rod (714), and a wedge-shaped push block (715). A guide bracket (710) is vertically fixed to the top of the inner wall of the main support seat (71). The push cam (713) is fixed to the other end of the transmission shaft (711) and has two tips. The two tips of the push cam (713) of the two tensioning units are in a vertical state by default, so that the wedge-shaped push block (715) can be pushed regardless of whether the main rotating shaft (72) is driven to rotate 90 degrees to the left or right. 5) Several guide slides (714) are arranged parallel to each other vertically. Among them, several guide slides (714) corresponding to the two tensioning units extend outward in opposite directions and are respectively movably inserted through the two ends of the guide bracket (710), the main support seat (71) and the arc-shaped base (2) on the corresponding side. The wedge-shaped push block (715) is fixed at one end of several guide slides (714) that extends into the main support seat (71) and is used to convert the thrust of the push cam (713) into a lateral tensioning force.

10. The anchor chain link torsion correction device according to claim 9, characterized in that, The tensioning unit also includes a tensioning seat (716), which is externally connected to the guide slide rod (714) of the corresponding side tensioning unit. A return spring (717) is sleeved on the guide slide rod (714). The two ends of the return spring (717) are respectively connected to the side of the wedge-shaped push block (715) and the side of the guide bracket (710). The tensioning seat (716) is initially fitted to the arc-shaped base (2). A silicone anti-slip pad is provided at the contact position between the surface of the tensioning seat (716) and the groove of the anchor chain wheel.

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