Military stable anchor chain fixing device for ship
By employing a dual braking method and a patterned design that increases friction, the problem of short service life of the guillotine chain brake is solved, resulting in more stable anchor chain fixation, extending the service life of the device, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG XIANGZHEAN MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing chain-locking gate devices rely on friction for braking, which alters the friction coefficient of the gate, resulting in a shorter service life and an inability to effectively secure the anchor chain.
The system employs a dual braking method, with the hydraulic cylinder assembly and motor assembly working together to share the frictional pressure between the gate and the anchor chain. The pattern design that increases friction also improves the wear resistance of the gate.
This improved the wear resistance of the switch, extended its service life, and reduced maintenance costs.
Smart Images

Figure CN224256883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anchor chain brake technology, specifically a shipboard military-grade stabilizing anchor chain fixing device. Background Technology
[0002] In the field of naval and military applications, sturdy anchor chain securing devices are crucial. They ensure the stability of warships when docked in ports or specific sea areas, preventing them from drifting due to waves, currents, and other factors. When a warship docks in port and drops its anchor, the anchor chain securing device must ensure the anchor chain is secure, allowing the anchor to effectively penetrate the seabed and provide a fixed anchoring effect, ensuring the warship's safe berthing in port without displacement. A chain catcher is one type of securing device.
[0003] Knife chain brakes use the friction between the knife and the chain links to stop the chain from moving and ensure that the chain is reliably braked. During use, relying on friction for braking for a long time causes frequent friction between the knife and the chain links, which changes the friction coefficient of the knife and makes the braking effect of the knife worse, thus resulting in a shorter service life. Utility Model Content
[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a ship military-grade stable anchor chain fixing device, which has the function of fixing the anchor chain through a double braking method, thereby distributing the frictional pressure between the gate and the anchor chain, thereby improving the wear resistance of the gate and thus increasing its service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ship military-grade sturdy anchor chain fixing device, including a load-bearing base, rotating grooves are provided on the front and rear walls of the load-bearing base, and a first motor assembly is fixedly connected to the front side of the load-bearing base;
[0006] The output end of the first motor assembly is fixedly connected to the first drive shaft. The rear end of the first drive shaft extends rotatably into the interior of the front rotating groove, and the rear end of the first drive shaft is rotatably connected to the rear wall of the rear rotating groove.
[0007] The take-up roller is fixedly sleeved on the outer surface of the first drive shaft. The front and rear sides of the take-up roller extend into the interior of two rotating grooves respectively. The load-bearing base is provided with a pressing mechanism, which can fix the anchor chain.
[0008] The clamping mechanism includes a hydraulic cylinder assembly, two limit housings, two sliding blocks, two clamping blocks, a transmission groove, two rotating shafts, two synchronous pulleys, two threaded rods, a motor groove, and a second motor assembly.
[0009] Preferably, the front and rear walls of the load-bearing base are provided with sliding grooves, and the left sides of the two sliding grooves extend into the interior of the two rotating grooves respectively.
[0010] A knife switch is slidably connected to the right side of the take-up roller. The front and rear sides of the knife switch are slidably connected to the inside of two sliding grooves, respectively. A knife switch pressure block is fixedly connected to the left side of the knife switch.
[0011] Preferably, the hydraulic cylinder assembly is fixedly connected to the right wall of the load-bearing base, and a hydraulic telescopic rod is fixedly connected to the output end of the hydraulic cylinder assembly;
[0012] The left end of the hydraulic telescopic rod is fixedly connected to the knife gate, and both limit housings are fixedly connected to the left side of the knife gate;
[0013] Two limiting shells are respectively set inside two sliding grooves, and two sliding blocks are respectively slidably connected inside the two limiting shells.
[0014] Preferably, the left sides of the two sliding blocks can slide out to extend the left sides of the two limiting shells, and the two clamping blocks are respectively fixedly connected to the left sides of the two sliding blocks;
[0015] The two clamping blocks can contact the take-up roller, and both the two clamping blocks and the take-up roller are provided with patterns to increase friction.
[0016] The transmission groove is located inside the breaker, and both rotating shafts are rotatably connected to the right wall of the breaker.
[0017] Preferably, the two rotating shafts are arranged one in front of the other, and the left sides of the two rotating shafts respectively extend into the interior of the two limiting shells;
[0018] Two synchronous pulleys are fixedly sleeved on the outer surfaces of two rotating shafts, and both synchronous pulleys are located inside the transmission groove.
[0019] Preferably, a timing belt is connected between the two timing pulleys, and two threaded rods are respectively fixedly connected to the left ends of the two rotating shafts;
[0020] The left ends of the two threaded rods extend into the interior of the two sliding blocks respectively, and the motor slot is opened on the rear wall of the load-bearing base.
[0021] Preferably, the left side of the motor slot extends into the interior of the rear sliding slot, the second motor assembly is fixedly connected to the right side of the switch, and the second motor assembly is disposed inside the motor slot;
[0022] The output end of the second motor assembly is fixedly connected to the second drive shaft. The left end of the second drive shaft extends rotatably into the interior of the drive groove, and the left end of the second drive shaft is fixedly connected to the rear rotating shaft.
[0023] Compared with the prior art, the beneficial effects of this utility model are:
[0024] (1) The ship's military-grade stable anchor chain fixing device can fix the anchor chain through a double braking method, thereby sharing the friction pressure between the gate pressure block and the anchor chain, thereby improving the wear resistance of the gate pressure block and thus increasing its service life.
[0025] (2) The ship's military-grade sturdy anchor chain fixing device, the key components of the device, such as the guillotine pressure block and the clamping block, all adopt a patterned design to increase friction and improve their wear resistance. This not only extends the service life of the components, but also reduces maintenance costs. Attached Figure Description
[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0027] Figure 1 This is a schematic diagram of a ship military-grade stabilizing anchor chain fixing device according to the present invention;
[0028] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the load-bearing base of this utility model;
[0029] Figure 3 This is a schematic diagram of the connection structure at the cross-section of the load-bearing base of this utility model;
[0030] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the gate and the limiting housing of this utility model.
[0031] Reference numerals: 1. Load-bearing base; 2. Rotating groove; 3. First motor assembly; 4. First drive shaft; 5. Take-up roller; 6. Sliding groove; 7. Knife gate; 8. Knife gate pressure block; 9. Hydraulic cylinder assembly; 10. Hydraulic telescopic rod; 11. Limiting housing; 12. Sliding block; 13. Pressing block; 14. Transmission groove; 15. Rotating shaft; 16. Synchronous pulley; 17. Synchronous belt; 18. Threaded rod; 19. Motor groove; 20. Second motor assembly. Detailed Implementation
[0032] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0036] Please see Figure 1-4 This utility model provides a new technical solution: a shipboard military-grade stable anchor chain fixing device, including a load-bearing base 1. Rotating grooves 2 are provided on both the front and rear walls of the load-bearing base 1. A first motor assembly 3 is fixedly connected to the front side of the load-bearing base 1. A first drive shaft 4 is fixedly connected to the output end of the first motor assembly 3. The rear end of the first drive shaft 4 rotatably extends into the interior of the front rotating groove 2, and the rear end of the first drive shaft 4 is rotatably connected to the rear wall of the rear rotating groove 2. A winding roller 5 is fixedly sleeved on the outer surface of the first drive shaft 4. The front and rear sides of the winding roller 5 extend into the interiors of the two rotating grooves 2 respectively. The anchor chain can be wound and unwound by the rotation of the winding roller 5. Sliding grooves are provided on both the front and rear walls of the load-bearing base 1. The left sides of the two sliding grooves 6 extend into the interior of the two rotating grooves 2 respectively. The right side of the take-up roller 5 is slidably connected to the gate 7. The front and rear sides of the gate 7 are slidably connected to the interior of the two sliding grooves 6 respectively. The left side of the gate 7 is fixedly connected to the gate pressure block 8. The left side of the gate pressure block 8 can press the anchor chain. The left side of the gate pressure block 8 is provided with a pattern to increase friction. The load-bearing base 1 is provided with a pressing mechanism, which can fix the anchor chain. The pressing mechanism includes a hydraulic cylinder assembly 9, two limit shells 11, two sliding blocks 12, two pressing blocks 13, a transmission groove 14, two rotating shafts 15, two synchronous pulleys 16, two threaded rods 18, a motor groove 19, and a second motor assembly 20.
[0037] Furthermore, the hydraulic cylinder assembly 9 is fixedly connected to the right wall of the load-bearing base 1. A hydraulic telescopic rod 10 is fixedly connected to the output end of the hydraulic cylinder assembly 9. The left end of the hydraulic telescopic rod 10 is fixedly connected to the gate 7. Two limiting housings 11 are fixedly connected to the left side of the gate 7. The two limiting housings 11 are respectively located inside the two sliding grooves 6. Two sliding blocks 12 are slidably connected to the inside of the two limiting housings 11. The left side of the two sliding blocks 12 can slide out of the left side of the two limiting housings 11. Two clamping blocks 13 are fixedly connected to the left side of the two sliding blocks 12. The two clamping blocks 13 can contact the take-up roller 5. Both the two clamping blocks 13 and the take-up roller 5 are provided with patterns to increase friction. The transmission groove 14 is opened inside the gate 7. Two rotating shafts 15 are rotatably connected to the right wall of the gate 7. The two rotating shafts 15 are arranged front and rear. The left side of the rotating shaft 15 extends rotatably into the interior of the two limiting housings 11. The two synchronous pulleys 16 are fixedly sleeved on the outer surfaces of the two rotating shafts 15. The two synchronous pulleys 16 are both located inside the transmission groove 14. A synchronous belt 17 is connected between the two synchronous pulleys 16. The two threaded rods 18 are fixedly connected to the left ends of the two rotating shafts 15. The left ends of the two threaded rods 18 extend threadedly into the interior of the two sliding blocks 12. The motor groove 19 is opened on the rear wall of the load-bearing base 1. The left side of the motor groove 19 extends into the interior of the rear sliding groove 6. The second motor assembly 20 is fixedly connected to the right side of the gate 7. The second motor assembly 20 is located inside the motor groove 19. The output end of the second motor assembly 20 is fixedly connected to the second transmission shaft. The left end of the second transmission shaft extends rotatably into the interior of the transmission groove 14. The left end of the second transmission shaft is fixedly connected to the rear rotating shaft 15.
[0038] Furthermore, when starting work, if it is necessary to retract the anchor chain, the first motor assembly 3 is activated. The first motor assembly 3 transmits power from its output end, driving the first drive shaft 4 to rotate. The first drive shaft 4 drives the take-up roller 5 to rotate synchronously. During the rotation, the take-up roller 5 will retract the anchor chain, and the anchor chain will be wound around the outer surface of the take-up roller 5. After the anchor chain is retracted, the hydraulic cylinder assembly 9 is activated. The hydraulic cylinder assembly 9 transmits power from its output end, driving the hydraulic telescopic rod 10 to extend. The hydraulic telescopic rod 10 then pushes the gate 7 to move to the left. The gate 7 drives the gate pressure block 8 to move to the left synchronously, and the gate pressure block 8 will press against the anchor chain. Braking is then achieved through the friction between the gate pressure block 8 and the anchor chain.
[0039] After the gate clamping block 8 secures the anchor chain, the second motor assembly 20 is activated. The second motor assembly 20 transmits power from its output end, driving the second drive shaft to rotate. The second drive shaft drives the rear rotating shaft 15 to rotate synchronously. The rear rotating shaft 15 drives the rear synchronous pulley 16 to rotate synchronously. The rear synchronous pulley 16 drives the front synchronous pulley 16 to rotate synchronously via the synchronous belt 17. The front synchronous pulley 16 drives the front rotating shaft 15 to rotate synchronously. Consequently, the two rotating shafts 15 drive the two threaded rods 18 to rotate synchronously. Consequently, the two threaded rods 18 drive the threaded sliding blocks 12 to move to the left. Consequently, the two sliding blocks 12 drive the two clamping blocks 13 to move synchronously to the left. Consequently, the two clamping blocks 13 press against the right side of the winding roller 5. The friction between the clamping blocks 13 and the winding roller 5 further secures the anchor chain.
[0040] Furthermore, this method allows for the anchor chain to be fixed through a dual braking mechanism, thereby sharing the frictional pressure between the gate pressure block 8 and the anchor chain, which in turn improves the wear resistance of the gate pressure block 8 and thus extends its service life.
[0041] Structural Description: Load-bearing base 1: This is the supporting structure of the entire device, used to support and fix other components, providing a stable support foundation and ensuring the stability and safety of the entire device during operation.
[0042] Rotating groove 2: It is formed on the front and rear walls of the load-bearing base 1 and is used to accommodate the first drive shaft 4 and the winding roller 5. It allows the first drive shaft 4 and the winding roller 5 to rotate smoothly inside it, thereby realizing the winding and unwinding of the anchor chain.
[0043] First motor assembly 3: Fixedly connected to the front side of the load-bearing base 1, used to provide power to drive the first transmission shaft 4 to rotate, thereby driving the winding roller 5 to rotate, realizing the winding and unwinding of the anchor chain.
[0044] First drive shaft 4: It is fixedly connected to the output end of the first motor assembly 3, passes through the rotating groove 2 and is fixedly sleeved with the take-up roller 5, transmitting the power of the first motor assembly 3 to the take-up roller 5, causing it to rotate.
[0045] Take-up roller 5: Fixedly sleeved on the outer surface of the first drive shaft 4, used for winding and releasing the anchor chain. When rotating, it winds the anchor chain around its outer surface or releases the wound anchor chain.
[0046] Sliding groove 6: It is formed on the front and rear walls of the load-bearing base 1 to accommodate the sliding of the knife gate 7, allowing the knife gate 7 to move smoothly in the sliding groove 6 so as to realize the clamping and releasing of the anchor chain by the knife gate pressure block 8.
[0047] Knife 7: Slidably connected in the sliding groove 6, used to drive the knife block 8 to move. By moving the knife 7, the knife block 8 can be pressed or released to tighten or release the anchor chain.
[0048] Knife clamping block 8: It is fixedly connected to the left side of the knife switch 7 and is used to directly clamp the anchor chain. It fixes the anchor chain by friction braking to prevent it from loosening. The left side of the knife clamping block 8 is patterned to improve the friction during contact.
[0049] Hydraulic cylinder assembly 9: Fixedly connected to the right wall of the load-bearing base 1, used to provide hydraulic power to drive the hydraulic telescopic rod 10 to extend or retract, thereby pushing the gate 7 to move.
[0050] Hydraulic telescopic rod 10: The output end of the hydraulic cylinder assembly 9 is fixedly connected to the gate 7. Under the drive of the hydraulic cylinder assembly 9, it extends or retracts, pushing the gate 7 to move.
[0051] Limiting housing 11: Fixedly connected to the left side of the guillotine 7, used to accommodate the sliding block 12, limit the movement range of the sliding block 12, and ensure that the clamping block 13 can accurately clamp the winding roller 5.
[0052] Sliding block 12: It is slidably connected inside the limiting housing 11 and is used to drive the pressing block 13 to move. Under the drive of the threaded rod 18, it slides along the inside of the limiting housing 11, thereby driving the pressing block 13 to move.
[0053] Clamping block 13: Fixedly connected to the left side of sliding block 12, used to clamp the take-up roller 5. It further fixes the anchor chain and enhances stability through friction braking. Patterns are provided on the contact surfaces of the two clamping blocks 13 and the take-up roller 5 to improve the friction during contact.
[0054] Transmission groove 14: It is formed inside the guillotine 7 to accommodate the synchronous pulley 16 and the synchronous belt 17, providing installation space for the synchronous pulley 16 and the synchronous belt 17 and ensuring that they can rotate smoothly.
[0055] Rotating shaft 15: Rotatably connected to the right wall of the guillotine 7, used to fix the synchronous pulley 16, drive the synchronous pulley 16 to rotate, thereby driving the threaded rod 18 to rotate.
[0056] Synchronous pulley 16: It is fixedly sleeved on the outer surface of the rotating shaft 15 and is used to transmit power. The two synchronous pulleys 16 are connected by a synchronous belt 17 to ensure that the two rotating shafts 15 can rotate synchronously.
[0057] Synchronous belt 17: It is connected between two synchronous pulleys 16 to transmit power and ensure that the two synchronous pulleys 16 can rotate synchronously, thereby driving the two threaded rods 18 to rotate synchronously.
[0058] Threaded rod 18: It is fixedly connected to the left end of the rotating shaft 15. The thread extends into the interior of the sliding block 12. When rotating, it drives the sliding block 12 to slide along the interior of the limiting housing 11.
[0059] Motor slot 19: It is formed on the rear wall of the load-bearing base 1 to accommodate the second motor assembly 20 and provide installation space for the second motor assembly 20.
[0060] The second motor assembly 20 is fixedly connected to the right side of the switch 7 or inside the motor slot 19. It is used to provide power to drive the second transmission shaft to rotate, thereby driving the rotating shaft 15, the synchronous pulley 16 and the threaded rod 18 to rotate.
[0061] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A ship military-grade sturdy anchor chain fixing device, comprising a load-bearing base (1), wherein rotating grooves (2) are provided on the front and rear walls of the load-bearing base (1), and a first motor assembly (3) is fixedly connected to the front side of the load-bearing base (1). The output end of the first motor assembly (3) is fixedly connected to the first drive shaft (4). The rear end of the first drive shaft (4) extends into the interior of the front rotating groove (2) and the rear end of the first drive shaft (4) is rotatably connected to the rear wall of the rear rotating groove (2). The winding roller (5) is fixedly sleeved on the outer surface of the first transmission shaft (4), and the front and rear sides of the winding roller (5) extend into the interiors of the two rotating grooves (2) respectively, characterized in that: The load-bearing base (1) is provided with a clamping mechanism, which can fix the anchor chain. The clamping mechanism includes a hydraulic cylinder assembly (9), two limit housings (11), two sliding blocks (12), two clamping blocks (13), a transmission groove (14), two rotating shafts (15), two synchronous pulleys (16), two threaded rods (18), a motor groove (19), and a second motor assembly (20).
2. A shipboard military secure mooring device according to claim 1, characterized in that: The front and rear walls of the load-bearing base (1) are provided with sliding grooves (6), and the left sides of the two sliding grooves (6) extend into the interior of the two rotating grooves (2); A knife gate (7) is slidably connected to the right side of the winding roller (5). The front and rear sides of the knife gate (7) are slidably connected to the interior of two sliding grooves (6). A knife gate pressure block (8) is fixedly connected to the left side of the knife gate (7).
3. A shipboard military secure mooring device according to claim 2, wherein: The hydraulic cylinder assembly (9) is fixedly connected to the right wall of the load-bearing base (1), and the output end of the hydraulic cylinder assembly (9) is fixedly connected to a hydraulic telescopic rod (10). The left end of the hydraulic telescopic rod (10) is fixedly connected to the knife gate (7), and the two limiting shells (11) are fixedly connected to the left side of the knife gate (7); Two limiting shells (11) are respectively set inside the two sliding grooves (6), and two sliding blocks (12) are respectively slidably connected inside the two limiting shells (11).
4. A shipboard military secure mooring device according to claim 3, wherein: The left side of the two sliding blocks (12) can slide out to the left side of the two limiting shells (11), and the two clamping blocks (13) are respectively fixedly connected to the left side of the two sliding blocks (12); The two clamping blocks (13) can contact the take-up roller (5), and both the two clamping blocks (13) and the take-up roller (5) are provided with patterns to increase friction. The transmission groove (14) is opened inside the guillotine (7), and the two rotating shafts (15) are rotatably connected to the right wall of the guillotine (7).
5. A shipboard military secure mooring device according to claim 4, wherein: The two rotating shafts (15) are arranged one in front of the other, and the left sides of the two rotating shafts (15) respectively extend into the interior of the two limiting shells (11); Two synchronous pulleys (16) are fixedly sleeved on the outer surfaces of two rotating shafts (15), and both synchronous pulleys (16) are set inside the transmission groove (14).
6. A shipboard military secure mooring device according to claim 5, wherein: A synchronous belt (17) is connected between the two synchronous pulleys (16), and two threaded rods (18) are fixedly connected to the left ends of the two rotating shafts (15); The left ends of the two threaded rods (18) are threaded into the interior of the two sliding blocks (12), and the motor slot (19) is opened on the rear wall of the load-bearing base (1).
7. A shipboard military secure mooring device according to claim 6, wherein: The left side of the motor slot (19) extends into the inside of the rear sliding slot (6), the second motor assembly (20) is fixedly connected to the right side of the gate (7), and the second motor assembly (20) is arranged in the inside of the motor slot (19); The output end of the second motor assembly (20) is fixedly connected with a second transmission shaft, the left end of the second transmission shaft rotatably extends into the inside of the transmission slot (14), and the left end of the second transmission shaft is fixedly connected with the rear rotating shaft (15).