stern anchor windlass
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHONGTAI OFFSHORE EQUIPMENT CO LTD
- Filing Date
- 2025-10-13
- Publication Date
- 2026-07-21
AI Technical Summary
The current method of anchoring ships is laborious and inefficient, and traditional tools lack effective anchor chain guidance and fixing mechanisms, which can easily lead to anchor chain slippage, twisting or falling off, posing safety hazards.
A stern anchor winch was designed, comprising a base, a rotating shaft, a rotating wheel, a guide support, and a motor. The motor drives the rotating shaft to rotate and wind up the anchor chain. The guide support and clamping plate ensure the stability of the anchor chain. An automated mechanical structure is adopted to realize the mechanization and automation of the anchor chain operation.
It improves the automation of the anchoring process, reduces manual labor, ensures the stability of the anchor chain during movement, avoids slippage or twisting, and enhances operational efficiency and safety. It is suitable for various ship environments.
Smart Images
Figure CN224528919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine equipment technology, and in particular to a stern anchor winch. Background Technology
[0002] In existing technologies, ship anchoring mainly relies on manual operation or simple mechanical devices, such as manual winches or lever systems. These methods have many drawbacks: First, the anchoring process is laborious and inefficient, especially for heavy anchor chains, requiring multiple people to work together, increasing labor costs and safety risks; second, traditional tools lack effective anchor chain guidance and fixing mechanisms, which can easily lead to anchor chain slippage, twisting, or detachment, causing accidents. These problems are becoming increasingly prominent, and there is an urgent need for an efficient, safe, and adjustable anchoring device. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a stern anchor winch, comprising a base, a rotating shaft, a rotating wheel, a guide support, and a motor. The base is fixedly mounted on the stern; the rotating shaft is rotatably connected to the base; the rotating wheel is connected to the rotating shaft and has a slot for engaging the anchor chain; the guide support includes an inclined support, a first clamping plate, and a second clamping plate, the inclined support being fixedly mounted on the stern and having a guide groove for threading the anchor chain; the first clamping plate and the second clamping plate are arranged opposite each other to form a clamping space for placing the anchor chain, the first clamping plate and the second clamping plate are rotatably connected to the inclined support, and the first clamping plate and the second clamping plate are connected by a connector; the output end of the motor is connected to the rotating shaft.
[0004] Furthermore, it also includes an upper clamp, a lower clamp, and a screw handle. The lower clamp is fixedly connected to the base, the upper clamp is rotatably connected to the lower clamp, and a placement cavity for accommodating the rotating wheel is formed between the upper clamp and the lower clamp. The screw handle is threadedly connected to the upper clamp and the lower clamp.
[0005] Furthermore, it also includes a rotating handle and a snap-fit block. The snap-fit block is sleeved on the outside of the rotating shaft. The rotating wheel has a snap-fit groove. The rotating handle is rotatably connected to the base. The end of the rotating handle is connected to the snap-fit block. The rotating handle is used to drive the snap-fit block to snap into the snap-fit groove.
[0006] Furthermore, the connector is a threaded screw with a first threaded section and a second threaded section. The first threaded section is threaded to the first clamping plate, and the second threaded section is threaded to the second clamping plate. The thread direction of the first threaded section is opposite to that of the second threaded section.
[0007] Furthermore, it also includes a driven pulley, a driving pulley, and a belt. The output end of the motor is connected to the driving pulley, the driven pulley is connected to the rotating shaft, the belt drive connects the driving pulley and the driven pulley, and the driven pulley is coaxially arranged with the rotating shaft.
[0008] Furthermore, it also includes a first bearing and a second bearing, wherein the outer ring of the first bearing is connected to the base, the inner ring of the first bearing is connected to one end of the rotating shaft, the outer ring of the second bearing is connected to the base, and the inner ring of the second bearing is connected to the other end of the rotating shaft.
[0009] Furthermore, the axis of the guide groove is tangent to the outer peripheral edge of the wheel.
[0010] Furthermore, the base has a window, and one end of the anchor chain passes through the window and is connected to an anchor head.
[0011] Furthermore, the anchor chain is composed of multiple latches connected in series, with adjacent latches arranged perpendicularly, and the size of the slot matches the size of the latch.
[0012] Furthermore, the base includes a base plate and multiple reinforcing ribs, the base plate being fixedly connected to the stern, and the multiple reinforcing ribs being fixedly connected to the base plate and spaced apart along the circumference of the base plate.
[0013] The beneficial effects of this utility model are as follows: In this invention, the base is bolted to the stern deck of the ship, and the rotating shaft is connected to the base via bearings to ensure smooth rotation. The rotating wheel is fixed to the rotating shaft, and its slot is used to engage the anchor chain's latch. The inclined support of the guide bracket is installed at the stern, and the guide groove guides the movement of the anchor chain. The motor's output is directly connected to the rotating shaft; upon startup, it drives the rotating wheel to rotate and wind up the anchor chain. In practice, the base and guide bracket are installed first, then the motor power supply is connected, and the anchor-raising speed is adjusted via a control switch. This process is highly automated and simple to operate. This basic structure achieves mechanization and automation of the anchor-raising process, significantly improving operational efficiency. The motor drives the rotating shaft to rotate, reducing manual labor; the guide bracket ensures the anchor chain remains stable during movement, preventing slippage or twisting and improving safety. The overall design is compact, easy to install at the stern, and suitable for various marine environments. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is one of the structural schematic diagrams of the stern anchor winch provided in this embodiment of the utility model.
[0015] Figure 2 This is the second structural schematic diagram of the stern anchor winch provided in this embodiment of the utility model.
[0016] Figure 3 This is a partial structural schematic diagram of the stern anchor winch provided in this embodiment of the utility model.
[0017] Figure 4 This is a schematic diagram of the structure of the rotating wheel provided in an embodiment of this utility model.
[0018] Figure 5 This is an exploded view of the structure of the guide support provided in this embodiment of the utility model.
[0019] In the diagram: 100, anchor chain; 110, buckle; 1, base; 2, shaft; 3, wheel; 4, guide support; 5, motor; 6, placement rack; 11, window; 12, base plate; 13, reinforcing rib; 31, slot; 41, inclined support; 42, first clamping plate; 43, second clamping plate; 44, screw; 61, upper clamp; 62, lower clamp; 63, screw handle; 71, rotating handle; 72, snap-fit block; 81, first bearing; 82, second bearing; 411, guide groove; 441, first threaded section; 442, second threaded section. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other. For ease of description, the words "upper," "lower," "left," and "right" appearing below only indicate that they are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.
[0021] like Figures 1 to 5As shown, this utility model proposes a stern anchor winch, including a base 1, a rotating shaft 2, a rotating wheel 3, a guide support 4, and a motor 5. The base 1 is installed and fixed to the stern; the rotating shaft 2 is rotatably connected to the base 1; the rotating wheel 3 is connected to the rotating shaft 2 and has a slot 31 for engaging the anchor chain 100; the guide support 4 includes an inclined support 41, a first clamping plate 42, a second clamping plate 43, and a screw 44. The inclined support 41 is installed and fixed to the stern and has a guide groove 411 for passing the anchor chain 100 through it. The first clamping plate 42 and the second clamping plate 43 are arranged opposite each other to form a clamping space for placing the anchor chain 100. The first clamping plate 42 and the second clamping plate 43 are rotatably connected to the inclined support 41, and the screw 44 is threadedly connected to the first clamping plate 42 and the second clamping plate 43; the output end of the motor 5 is connected to the rotating shaft 2. Specifically, base 1 is bolted to the stern deck, and shaft 2 is connected to base 1 via bearings to ensure smooth rotation. Wheel 3 is fixed to shaft 2, and its slot 31 engages with the locking buckle 110 of anchor chain 100. The inclined support 41 of guide support 4 is installed at the stern, and guide groove 411 guides the anchor chain movement. The output of motor 5 is directly connected to shaft 2; upon startup, it drives the wheel to rotate, winding up the anchor chain. In practice, the base and guide support are installed first, then the motor power supply is connected, and the anchor-raising speed is adjusted via a control switch. This process is highly automated and simple to operate. This basic structure achieves mechanization and automation of the anchor-raising process, significantly improving operational efficiency. The motor drives the shaft to rotate, reducing manual labor; the guide support ensures the anchor chain remains stable during movement, preventing slippage or twisting and improving safety. The overall design is compact, easy to install at the stern, and suitable for various marine environments.
[0022] In one embodiment, the system further includes an upper clamp 61, a lower clamp 62, and a screw handle 63. The lower clamp 62 is fixedly connected to the base 1, and the upper clamp 61 is rotatably connected to the lower clamp 62. A placement cavity for accommodating the rotating wheel 3 is formed between the upper clamp 61 and the lower clamp 62. The screw handle 63 is threadedly connected to the upper clamp 61 and the lower clamp 62. Specifically, the lower clamp 62 is welded and fixed to the base 1, and the upper clamp 61 is rotatably connected to the lower clamp 62 via a hinge, forming a placement cavity to accommodate the rotating wheel 3. The screw handle 63 is threadedly connected to the upper clamp 61 and the lower clamp 62, and rotating the screw handle can adjust the tightness of the clamps. Locking the upper clamp 61 and the lower clamp 62 can lock the rotating wheel 3, preventing the rotating wheel 3 from rotating during non-working periods.
[0023] In one embodiment, the system further includes a rotating handle 71 and a locking block 72. The locking block 72 is sleeved on the outside of the rotating shaft 2, and the rotating wheel 3 has a locking groove 32. The rotating handle 71 is rotatably connected to the base 1, and its end is connected to the locking block 72. The rotating handle 71 is used to drive the locking block 72 to engage with the locking groove 32. Specifically, the locking block 72 is sleeved on the outside of the rotating shaft 2, and the rotating wheel 3 has a locking groove 32. The rotating handle 71 is rotatably connected to the base 1 via the rotating shaft, and its end is connected to the locking block 72. In practice, rotating the rotating handle 71 drives the locking block 72 to engage with the locking groove 32, which can further lock the rotating wheel 3 and prevent the rotating wheel 3 from rotating during non-working periods.
[0024] In one embodiment, the screw 44 has a first threaded section 441 and a second threaded section 442. The first threaded section 441 is threadedly connected to the first clamping plate 42, and the second threaded section 442 is threadedly connected to the second clamping plate 43. The thread direction of the first threaded section 441 is opposite to that of the second threaded section 442. Specifically, the first threaded section 441 of the screw 44 is threadedly connected to the first clamping plate 42, and the second threaded section 442 is threadedly connected to the second clamping plate 43, with opposite thread directions. In practice, rotating the screw 44 causes the first clamping plate 42 and the second clamping plate 43 to move simultaneously towards the center or outward, thereby expanding or shrinking the clamping space to match the anchor chain size. This operation is simple; adjustment can be completed by simply rotating the screw with a wrench, and it is suitable for various anchor chain specifications. The reverse thread design allows the first and second clamping plates to open and close synchronously, quickly adapting to anchor chains of different diameters, improving tool versatility and adjustment efficiency. It reduces adjustment time and enhances clamping stability.
[0025] In one embodiment, the system further includes a driven pulley, a driving pulley, and a belt. The output end of the motor 5 is connected to the driving pulley, the driven pulley is connected to the rotating shaft 2, and the belt drive connects the driving pulley and the driven pulley. The driven pulley is coaxially arranged with the rotating shaft 2. Specifically, the output end of the motor 5 is connected to the driving pulley, the driven pulley is connected to the rotating shaft 2, and the belt drive connects the driving pulley and the driven pulley. In implementation, after the motor starts, the driving pulley drives the driven pulley to rotate via the belt, thereby driving the rotating shaft 2 to rotate. The belt is made of high-strength rubber to ensure transmission efficiency. The system may also include a tensioner to adjust the belt tension; maintenance only requires checking the belt wear and replacing it promptly. The belt drive system achieves speed reduction and torque increase, improving the motor output torque and adapting to the anchoring requirements of heavy anchor chains. The transmission is smooth, reducing impact loads and extending the life of the motor and rotating shaft. Simultaneously, the belt drive allows for remote installation of the motor, increasing design flexibility.
[0026] In one embodiment, the system further includes a first bearing 81 and a second bearing 82. The outer ring of the first bearing 81 is connected to the base 1, and the inner ring of the first bearing 81 is connected to one end of the rotating shaft 2. The outer ring of the second bearing 82 is connected to the base 1, and the inner ring of the second bearing 82 is connected to the other end of the rotating shaft 2. Specifically, the outer ring of the first bearing 81 is connected to the base 1, and the inner ring is connected to one end of the rotating shaft 2; the second bearing 82 is connected to the other end of the rotating shaft 2. In implementation, deep groove ball bearings are used, and regular maintenance is performed using grease lubrication. During installation, it is ensured that the bearing fit tolerances with the rotating shaft and base meet standards to reduce vibration and noise. This enhances the stability of the overall structure. The dual bearings support both ends of the rotating shaft, ensuring smooth rotation, reducing friction and wear, and improving tool durability and reliability. The bearing design distributes the load, preventing shaft misalignment and ensuring a smooth anchoring process.
[0027] In one embodiment, the axis of the guide groove 411 is tangent to the outer peripheral edge of the spool 3. Specifically, the axis of the guide groove 411 is precisely adjusted during installation to be tangent to the outer peripheral edge of the spool 3. In practice, the anchor chain 100 passes through the guide groove 411 and directly engages with the spool slot 31 without any gaps. This reduces metal fatigue and extends the life of the anchor chain and tools. This design allows the anchor chain to smoothly enter the spool slot from the guide groove, reducing impact and wear, and preventing the anchor chain from jumping or jamming. This improves the smoothness and safety of anchoring.
[0028] In one embodiment, the base 1 has a window 11, and one end of the anchor chain 100 passes through the window 11 and is connected to an anchor head.
[0029] In one embodiment, the anchor chain 100 consists of multiple latches 110 connected in series, with adjacent latches 110 arranged vertically. The size of the slot 31 matches the size of the latches 110. Specifically, the anchor chain 100 consists of multiple latches 110 connected in series, with adjacent latches arranged vertically. The size of the slot 31 of the spool 3 is designed according to the diameter and shape of the latches 110, and its depth is typically half the diameter of the latch. In practice, after the anchor chain is engaged in the slot, each latch is wound up one by one as the spool rotates, preventing slippage. This is suitable for standard marine anchor chains, ensuring compatibility. The precise matching of the slot and the latches ensures that the anchor chain will not slip or fall off when wound up, enhancing gripping force. The vertically arranged latch design reduces the risk of entanglement and improves reliability.
[0030] In one embodiment, the base 1 includes a base plate 12 and a plurality of reinforcing ribs 13. The base plate 12 is fixedly connected to the stern, and the plurality of reinforcing ribs 13 are fixedly connected to the base plate 12 and spaced apart circumferentially along the base plate 12. Specifically, the base 1 is welded together from the base plate 12 and the plurality of reinforcing ribs 13, which are spaced apart circumferentially along the base plate, typically in a triangular layout. In practice, the base plate 12 is fixed to the stern by bolts, and the reinforcing ribs 13 increase the support area. Corrosion-resistant steel is selected as the material, and the surface is treated to resist seawater corrosion. This ensures the stability of the tool during long-term use. The reinforcing rib structure enhances the rigidity and impact resistance of the base, distributes the load during anchoring, and prevents the base from deforming or being damaged. This improves the durability of the tool in harsh marine environments.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A stern anchor winch, characterized in that, include: The base is installed and fixed to the stern of the ship; The pivot is rotatably connected to the base; A rotating wheel, connected to the rotating shaft, is provided with a slot for engaging the anchor chain; A guide support includes an inclined support, a first clamping plate, and a second clamping plate. The inclined support is fixed to the stern of the ship and has a guide groove for threading an anchor chain. The first clamping plate and the second clamping plate are arranged opposite to each other to form a clamping space for placing the anchor chain. The first clamping plate and the second clamping plate are rotatably connected to the inclined support and are connected by a connector. An electric motor, the output end of which is connected to the rotating shaft.
2. The stern anchor winch according to claim 1, characterized in that, It also includes an upper clamp, a lower clamp, and a screw handle. The lower clamp is fixedly connected to the base, the upper clamp is rotatably connected to the lower clamp, and a placement cavity for accommodating the rotating wheel is formed between the upper clamp and the lower clamp. The screw handle is threadedly connected to the upper clamp and the lower clamp.
3. The stern anchor winch according to claim 1, characterized in that, It also includes a rotating handle and a snap-fit block. The snap-fit block is sleeved on the outside of the rotating shaft. The rotating wheel has a snap-fit groove. The rotating handle is rotatably connected to the base. The end of the rotating handle is connected to the snap-fit block. The rotating handle is used to drive the snap-fit block to snap into the snap-fit groove.
4. The stern anchor winch according to claim 1, characterized in that, The connector is a threaded screw, which has a first threaded section and a second threaded section. The first threaded section is threadedly connected to the first clamping plate, and the second threaded section is threadedly connected to the second clamping plate. The thread direction of the first threaded section is opposite to that of the second threaded section.
5. The stern anchor winch according to claim 1, characterized in that, It also includes a driven pulley, a driving pulley, and a belt. The output end of the motor is connected to the driving pulley, the driven pulley is connected to the rotating shaft, the belt drive connects the driving pulley and the driven pulley, and the driven pulley is coaxially arranged with the rotating shaft.
6. The stern anchor winch according to claim 1, characterized in that, It also includes a first bearing and a second bearing, wherein the outer ring of the first bearing is connected to the base, the inner ring of the first bearing is connected to one end of the rotating shaft, the outer ring of the second bearing is connected to the base, and the inner ring of the second bearing is connected to the other end of the rotating shaft.
7. The stern anchor winch according to claim 1, characterized in that, The axis of the guide groove is tangent to the outer peripheral edge of the wheel.
8. The stern anchor winch according to claim 1, characterized in that, The base has a window, and one end of the anchor chain passes through the window and is connected to an anchor head.
9. The stern anchor winch according to claim 1, characterized in that, The anchor chain is composed of multiple latches connected in series, with adjacent latches arranged perpendicularly, and the size of the slot matches the size of the latch.
10. The stern anchor winch according to claim 1, characterized in that, The base includes a base plate and multiple reinforcing ribs. The base plate is fixedly connected to the stern of the ship, and the multiple reinforcing ribs are fixedly connected to the base plate and spaced apart along the circumference of the base plate.