A marine winch

Abstract

The utility model relates to the field of ocean underwater operation equipment especially relates to a kind of ocean winch applicable to different thick and thin cable cable arrangement, it mainly includes two parts of winch main body and cable arrangement device, winch main body includes winch drum, is driven by drum motor, and cable is wound on winch drum;Cable arrangement device includes stepping mechanism, guide mechanism and cable pressing mechanism;Stepping mechanism includes guide rod, cable arrangement lead screw and cable arrangement motor, guide mechanism includes guide support and guide pulley, guide support is screwed on cable arrangement lead screw and is slid and is arranged on guide rod, guide pulley is installed on guide support, and cable is reeled through guide pulley;Cable pressing mechanism includes the cable pressing wheel of up and down displacement setting, and cable pressing wheel is arranged above guide pulley, and the spacing of guide pulley is adjustable.The utility model can guarantee the stability of winch cable arrangement and the adaptability to different thick and thin cable diameter.

Description

Technical Field

[0001] This utility model relates to the field of marine winches, and more particularly to a marine winch that can be used for laying cables of different thicknesses. Background Technology

[0002] In marine winch systems, fixed-diameter cable laying structures are commonly used, relying on fixed guide wheels and long drive shafts for cable deployment. This traditional architecture, once designed, determines the optimal cable diameter. Replacing the cable with a significantly different diameter leads to decreased efficiency, instability, and even failure to lay the cable. Furthermore, critical transmission components such as the cable guide mechanism are susceptible to wear and corrosion during long-term operation, resulting in high operating costs and requiring regular replacement and maintenance. The difficulty in disassembling and replacing traditional winches further hinders this regular replacement and maintenance.

[0003] Therefore, it is necessary to develop a new type of marine winch that can adapt to cable laying of different diameters and materials, and is easy to maintain and debug. Summary of the Invention

[0004] To address the background problems, this utility model provides a marine winch, which mainly consists of two parts: a winch body and a cable laying device. The winch body is mainly used for winding and unwinding cables by a winch drum. The cable laying device lays the cable released from the drum and, through the stepping of a guide mechanism, ensures that the guide pulley follows the axial progress of the cable laying from the drum. In addition, a clamping mechanism is provided to ensure the stability of the cable movement. It can also accommodate the laying of cables of different diameters, thus meeting the urgent need for marine winch equipment to adapt to cables of different thicknesses.

[0005] The technical solution of this utility model is: a marine winch, which mainly includes a winch body and a cable laying device; The winch body includes a winch drum supported on a drum bracket. The winch drum is driven by a drum motor, and a cable is wound on the winch drum. The cable laying device includes a stepping mechanism, a guiding mechanism, and a cable pressing mechanism; The stepping mechanism includes a guide rod, a cable laying screw, and a cable laying motor, wherein the cable laying motor drives the cable laying screw. The guiding mechanism includes a guide support and a guide pulley. The guide support is threaded onto the cable guide screw and slides through the guide rod. The guide pulley is mounted on the guide support, and the cable is wound up and down through the guide pulley. The cable pressing mechanism includes a cable pressing wheel that is vertically displaced. The cable pressing wheel is positioned above the guide pulley and opposite to the guide pulley.

[0006] Based on the above scheme, the preferred embodiment is as follows: the winch drum includes a left cable reel, a right cable reel, a drum, and a shaft. The drum is wound with a cable. The left and right cable reels are fixed at both ends of the drum to block the cable. The shaft is fixedly passed through the center of the left cable reel, the right cable reel, and the drum. The shaft is driven and connected by a drum motor. A brake push rod is provided on one side of the winch drum, and a brake hole is provided on the left / right cable reel near the brake push rod. When the extension end of the brake push rod is extended, it is inserted into the brake hole to brake the winch drum.

[0007] Preferably, the brake push rod includes an electric push rod, with a brake pin connected to the front end of the electric push rod. The brake pin passes through a brake stop block, and the brake stop block is fixed on the drum support.

[0008] Preferably, a photoelectric slip ring is provided on one side of the winch drum. The rotating part of the photoelectric slip ring rotates together with the winch drum, and the fixed part is fixed on the bracket and connected to the control cable.

[0009] Preferably, the guide support includes two parallel side plates, which are supported and shaped by a support rod. The side plates are provided with a cable guide screw sleeve and a guide rod sleeve. The cable guide screw sleeve is provided with an internal threaded hole, and the guide rod sleeve is provided with an internal smooth hole. The cable guide screw passes through the cable guide screw sleeve, and the guide rod passes through the guide rod sleeve. The guide pulley is supported in the gap between the two side plates.

[0010] Preferably, three guide pulleys are arranged on the guide support along the cable laying direction, with the guide pulleys on both sides being higher and the guide pulley in the middle being lower.

[0011] Preferably, the cable pressing mechanism further includes a cable pressing motor and a cable pressing bracket. The output end of the cable pressing motor drives and connects to a small gear of a reducer. The small gear of the reducer meshes with a large gear of a reducer. A screw is fixedly inserted through the center of the large gear of the reducer. A skeleton is threadedly connected to the screw. The skeleton slides on a fixed slide rod. A cable pressing shaft is fixedly connected to the bottom end of the skeleton. A cable pressing wheel is rotatably sleeved on the cable pressing shaft.

[0012] Preferably, an auxiliary plate extends out from the guide support, and two fixed sliding rods are fixed above the auxiliary plate.

[0013] Preferably, the marine winch further includes a container, and the winch body and cable laying device are installed on a base inside the container; an electrical control cabinet is also installed inside the container, and an operation screen is installed on the surface of the container; a cable outlet is provided on the side of the container, and a brush roller is provided at the cable outlet, through which the cable enters and exits.

[0014] This invention employs a marine winch body combined with a cable-laying device to assist in cable laying. The winch drum is mounted on the winch support and driven by a motor. The rotational force of the motor drives the drum to rotate, thereby realizing cable laying and unlaying. At the same time, the auxiliary cable-laying device ensures that the cable is neatly arranged, which can effectively increase the efficiency of cable laying and unlaying and avoid cable tangling. Meanwhile, the self-locking of the brake push rod can reduce the force on the motor when the cable is forcibly locked to the desired length, increase the stability of the winch during cable operation, and save motor power.

[0015] Furthermore, the cable laying device is equipped with a servo motor and an absolute encoder, which can monitor and record the current position of the cable laying mechanism in real time, avoiding the problem of not being able to confirm the starting position of the next cable laying due to power failure. During the cable laying process, the servo system detects the rotation of the cable reel and drives the cable laying screw to achieve synchronous rotation, so that the guide mechanism moves axially by one cable spacing for each revolution of the cable reel, thereby achieving a uniform distribution of the cable on the cable reel.

[0016] Furthermore, to prevent the guide mechanism from jamming on the cable laying screw due to large lateral forces, double guide rods are installed on both sides to assist the movement, thereby ensuring the smoothness and reliability of the cable laying process. Attached Figure Description

[0017] Figure 1 This is a layout diagram of the main body of the marine winch and the cable laying device inside the marine winch; Figure 2 This is the main view of the winch body; Figure 3 This is a right view of the winch body; Figure 4 This is a structural diagram of the brake push rod; Figure 5 This is a structural diagram of the cable laying device; Figure 6 This is a front view of the guide mechanism in the cable laying device; Figure 7 This is a front view of the cable-laying mechanism in the cable-laying device; Figure 8 This is a side view of the cable-laying mechanism in the cable-laying device; Figure 9 This is a schematic diagram of the clamping mechanism pressing down on a small diameter cable in a cable laying device; Figure 10 This is a schematic diagram of the pressing mechanism pressing a large-diameter cable in a cable laying device; Figure 11 This is an exterior view of an ocean winch. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Those skilled in the art should know that the following embodiments are not the only limitation on the technical solution of the present invention. Any equivalent transformations or modifications made under the spirit and essence of the technical solution of the present invention should be considered as falling within the protection scope of the present invention.

[0019] like Figure 1 As shown, this utility model provides a novel marine winch, which mainly comprises two parts: a winch body I and a cable laying device II. The winch body I is responsible for winding the cable and feeding the cable to the cable laying device II, while the cable laying device II is responsible for laying the cable to the outside.

[0020] like Figures 2-3 As shown, the main body of the winch in this utility model consists of a winch support, a winch drum, and a drum control unit.

[0021] The winch support consists of two sets: a drum support and a motor support. The drum support includes a left support 1 and a right support 2, with a left shaft plate 3 and a right shaft plate 4 respectively mounted on the left support 1 and the right support 2. The motor support 5 is installed on the outside of the left support 1 or the right support 2, as shown on the outside of the right support 2 in the figure.

[0022] The winch drum includes a left cable reel 6, a right cable reel 7, a drum 8, and a shaft 9.

[0023] The drum control unit includes a drum motor 10, a brake push rod 11, and a photoelectric slip ring 12.

[0024] The left cable reel 6 and the right cable reel 7 are fixedly connected to both ends of the drum 8, forming a whole. The drum 8 is used to wind the cable. A shaft 9 is fixedly inserted through the center of the drum 8. The shaft 9 drives the drum 8 to rotate together, completing the cable winding and unwinding work. At the same time, the shaft 9 is supported by rolling bearings passing through the left shaft plate 3 and the right shaft plate 4 on both sides.

[0025] The drum motor 10 is fixed on the upper layer of the motor bracket 5, and its output shaft is connected to one end of the drum 9 to drive the drum 9 to rotate.

[0026] Furthermore, a brake push rod 11 is installed in the middle layer of the motor bracket 5. The brake push rod 11 includes an electric push rod 111 and a brake pin 112. It also includes a fixedly installed brake stop 113, such as... Figure 4As shown. The front end of the electric actuator 111 is connected to the brake pin 112, and the electric actuator 111 drives the brake pin 112 to extend and retract. On the cable reel near the brake actuator 11, such as the right cable reel 7 shown in the figure, a brake hole 114 is provided. After the drum motor 10 completes deceleration, the brake actuator 11 automatically aligns with the brake hole 114, and the electric actuator 111 pushes the brake pin 112 into the brake hole 114, completing the braking and self-locking of the winch. The area around the brake hole 114 is locally thickened to reduce stress during braking. When the brake pin 112 retracts, the winch cable reel resumes operation. The brake stop 113 is installed on the bracket. During the extension and retraction of the brake pin 112, it passes through the brake stop 113. When braking, the tension on the cable reel is transmitted to the brake stop 113 through the brake pin 112, protecting the electric actuator 111 from radial force.

[0027] Furthermore, an optoelectronic slip ring 12 is installed at the other end of the reel 9. Its rotating part rotates with the drum, and its fixed part is fixed on the bracket and connected to the cable in the control room. This ensures that the signal transmission is uninterrupted during the 360-degree infinite rotation of the drum, providing power and signal transmission channels for the tow cable and controlling the further movement of the drum.

[0028] Furthermore, due to its relatively large diameter, drum 8 is reinforced with a ring-shaped rib in the middle to prevent overall or local buckling instability and ensure structural stability. High-strength steel is used in areas of the drum that bear heavy loads, while lightweight aluminum alloy is preferred in other areas to achieve structural weight reduction. Similarly, the cable reel, a critical component with complex structure and high precision requirements, is reinforced with ribs. The support frame is constructed from welded square tubing, which facilitates connection, minimizes deformation, and provides good stability, making it suitable for harsh marine environments. Corner bracing plates are installed at the joints to enhance the stability of the support frame.

[0029] like Figures 5-8 As shown, the cable laying device of this utility model includes three parts: a stepping mechanism, a guiding mechanism, and a cable pressing mechanism.

[0030] The stepping mechanism includes a bracket 21, guide rods 22, a cable-laying screw 23, and a cable-laying motor 24. The bracket 21 serves as the basic support structure, providing structural support for the entire cable-laying device and directly supporting the guide rods 22, cable-laying screw 23, and cable-laying motor 24. Two guide rods 22 and one cable-laying screw 23 are supported between two brackets 21, with the two guide rods 22 positioned side-by-side on either side of the cable-laying screw 23. The guide rods 22 prevent the cable-laying screw 23 from jamming due to excessive lateral tension during cable laying. The cable-laying motor 24 is mounted on the outside of either bracket and is connected to one end of the cable-laying screw 23. Furthermore, the cable-laying motor 24 is driven by a servo motor and reducer, which in turn drives the cable-laying screw 23, which in turn drives the guiding mechanism to perform the cable-laying action. The guide rods 22 and the cable-laying screw 23 jointly support the guiding mechanism.

[0031] The guiding mechanism includes a guide support 25 and a guide pulley 26. For example, Figure 5 and Figure 6 As shown, the guide support 25 includes two parallel side plates 251, support rods 252, cable guide screw sleeves 253, and guide rod sleeves 254. The two side plates 251 are supported and shaped by 2-4 support rods 252. The two side plates 251 serve as the basic support structure, providing physical space and mechanical protection for the entire guide mechanism. The cable guide screw sleeves 253 and guide rod sleeves 254 are fixed to the openings on the side plates 251 by bolts or other connecting parts. Correspondingly, the guide rod 22 slides through the guide rod sleeves 254 through the side plates 251, and the cable guide screw 23 is threadedly connected to the cable guide screw sleeves 253 and passes through the side plates 251. Therefore, the rotational movement of the cable guide screw 23 can be converted into linear movement of the guide support 25, thus achieving stepping.

[0032] Guide pulleys 26 are supported in the gap between two side plates 251 for guiding the cable through. The axle of the guide pulley is fixedly connected to the side plate, and the pulley itself is supported on the axle using ball bearings. The pulley itself is made of nylon or rubber to protect the cable. Furthermore, three guide pulleys 26 are provided on the guiding mechanism, distributed at different heights, with the two outer guide pulleys higher and the middle guide pulley lower, to facilitate tensioning and guiding the cable.

[0033] like Figure 7 , Figure 8 As shown, the cable pressing mechanism includes a cable pressing motor 27, a cable pressing bracket 28, a reducer pinion 29, a reducer gear 30, a screw 31, a frame 32, a fixed slide bar 33, an auxiliary plate 34, a cable pressing shaft 35, and a cable pressing wheel 36.

[0034] The cable pressing bracket 28 is fixed on the platform above the guide mechanism. The cable pressing motor 27 is fixed on the cable pressing bracket 28, and the output end of the cable pressing motor 27 drives the small gear 29 of the reducer to move. The large gear 30 of the reducer is also supported on the cable pressing bracket 28 and meshes with the small gear 29. The central shaft of the large gear 30 of the reducer is fixed to the screw 31, and the screw 31 is threadedly connected to the frame 32. The screw 31 converts the torsional force of the large gear 30 of the reducer into a thrust force on the frame 32 in the vertical direction, so that the frame 32 moves in the vertical direction.

[0035] Furthermore, an auxiliary plate 34 is extended from one side of the side plate 251 of the guide mechanism, and two fixed slide rods 33 are fixed above the auxiliary plate 34. The fixed slide rods 33 are slidably arranged in the frame 32 above the frame, and the frame 32 is assisted to move in the vertical direction.

[0036] The cable pressing shaft 35 is fixedly connected to the bottom end of the frame 32. The cable pressing shaft 35 extends laterally between the two side plates of the guide mechanism. The cable pressing wheel 36 is sleeved on the cable pressing shaft 35. The cable pressing wheel 36 rotates relative to the cable pressing shaft 35. The cable pressing wheel 36 is located above the guide pulley 26. The cable pressing shaft 35 moves up and down with the frame 32 to adjust the distance between the cable pressing wheel 36 and the guide pulley 26, so as to press down cables of different diameters.

[0037] For example, such as Figure 9 and Figure 10 As shown, when winding or unwinding a cable with a diameter of 18mm, the cable pressing motor 27 adjusts the position of the frame 32 through the rotation of the reducer gear, and the cable pressing wheel 36 moves downward with the frame 32 to adjust the distance between itself and the guide pulley 26 and press the cable; when switching to a cable with a diameter of 40mm, the cable pressing wheel 36 moves upward with the frame 32 to adjust the distance between itself and the guide pulley 26 and press the cable.

[0038] Furthermore, such as Figure 11 As shown, to prevent the cable from being corroded and contaminated, the winch is also equipped with a container III. Container III provides power and equipment installation space for related systems, ensuring convenient and quick wiring, stable installation, and easy operation. The winch body I and the cable laying device II are both mounted on the container base. For convenient control, an electrical control cabinet IV is also installed inside container III, and an operating panel V is located on the surface of the container. Parameters are set and motor operation is controlled via the operating panel V. A cable outlet is located on the side of container III, and a brush roller VI is installed at the cable outlet. The cable enters and exits through the cable outlet. The brush roller VI is used to wipe seawater and debris off the cable during the retrieval and laying process, reducing maintenance costs. During winch maintenance, the entire winch can be moved by lifting the container, reducing the cumbersome steps of disassembling parts.

[0039] This invention employs a servo control system. During operation, a photoelectric slip ring senses whether the drum speed meets the requirements, adjusting the drum motor speed accordingly. A cable-laying device beside the drum synchronously follows the cable laying process. During cable laying, the servo system drives the servo motor to rotate according to the required cable laying speed. The servo motor is equipped with an absolute encoder, which can detect and record the position of the guide mechanism in real time, avoiding position loss due to unexpected power outages. A stepping mechanism causes the guide mechanism to move laterally by the spacing of one cable strand per revolution of the cable reel, ensuring neat cable arrangement. A cable-pressing mechanism presses down on the cable from above to prevent cable jumping, and adjusts the distance between the cable-pressing wheel and the guide pulley according to the cable thickness to accommodate cable winding and unwinding of different diameters.

[0040] Therefore, in general, the design of this utility model can set the stepping speed of the guide mechanism according to the cable length and drum speed, monitor the cable passage in real time, and ensure that the cable is neatly wound and unwound. The cable pressing mechanism can adjust the height of the cable pressing wheel when the diameter of the cable changes, so as to ensure that cables of various diameters can pass smoothly.

Claims

1. An offshore winch, characterized by: Includes the winch body and cable laying device; The winch body includes a winch drum supported on a drum bracket. The winch drum is driven by a drum motor (10), and a cable is wound on the winch drum. The cable laying device includes a stepping mechanism, a guiding mechanism, and a cable pressing mechanism; The stepping mechanism includes a guide rod (22), a cable laying screw (23) and a cable laying motor (24), wherein the cable laying motor (24) drives the cable laying screw (23). The guiding mechanism includes a guide support (25) and a guide pulley (26). The guide support (25) is threaded onto the cable laying screw (23) and slides through the guide rod (22). The guide pulley (26) is installed on the guide support (25). The cable is wound up and unwound through the guide pulley (26). The cable pressing mechanism includes a cable pressing wheel (36) that is vertically displaced. The cable pressing wheel (36) is positioned above the guide pulley (26) and opposite to the guide pulley (26).

2. The offshore winch of claim 1, wherein: The winch drum includes a left cable reel (6), a right cable reel (7), a drum (8), and a spool (9). The left cable reel (6) and the right cable reel (7) are fixed at both ends of the drum (8). The spool (9) is fixedly passed through the center of the left cable reel (6), the right cable reel (7), and the drum (8). The spool (9) is driven and connected by a drum motor (10). A brake push rod (11) is provided on one side of the winch drum, and a brake hole (114) is provided on the left / right cable reel near the brake push rod (11). When the extension end of the brake push rod (11) is extended, it is inserted into the brake hole (114) to brake the winch drum.

3. The marine winch of claim 2, characterized by: The brake push rod (11) includes an electric push rod (111), and a brake pin (112) is connected to the front end of the electric push rod (111). The brake pin (112) passes through a brake stop block (113), and the brake stop block (113) is fixed on the drum support.

4. The marine winch of claim 1, wherein: A photoelectric slip ring (12) is provided on one side of the winch drum. The rotating part of the photoelectric slip ring (12) rotates together with the winch drum, and the fixed part is fixed on the bracket and connected to the control cable.

5. The marine winch of claim 1, wherein: The guide support (25) includes two parallel side plates (251) supported and shaped by a support rod (252). The side plates (251) are provided with a cable guide screw sleeve (253) and a guide rod sleeve (254). The cable guide screw sleeve (253) is provided with an internal threaded hole, and the guide rod sleeve (254) is provided with an internal smooth hole. The cable guide screw (23) passes through the cable guide screw sleeve (253), and the guide rod (22) passes through the guide rod sleeve (254). The guide pulley (26) is supported in the gap between the two side plates (251).

6. The marine winch of claim 1 or 5, characterized by: The guide pulleys (26) are arranged in three positions along the cable laying direction on the guide support (25), with the guide pulleys on both sides being higher and the guide pulley in the middle being lower.

7. The marine winch of claim 1, wherein: The cable pressing mechanism also includes a cable pressing motor (27) and a cable pressing bracket (28). The output end of the cable pressing motor (27) drives and connects to a reducer pinion (29). The reducer pinion (29) meshes with a reducer gear (30). A screw (31) is fixedly inserted through the center of the reducer gear (30). A skeleton (32) is threaded onto the screw (31). The skeleton (32) slides on a fixed slide rod (33). The bottom end of the skeleton (32) is fixedly connected to a cable pressing shaft (35). A cable pressing wheel (36) is rotatably sleeved on the cable pressing shaft (35).

8. The marine winch of claim 7, characterized by: An auxiliary plate (34) is extended from the guide support (25), and two fixed sliding rods (33) are fixed above the auxiliary plate (34).

9. The marine winch of claim 1, wherein: The marine winch also includes a container, and the winch body and cable laying device are installed on a base inside the container; An electrical control cabinet is also installed inside the container, and an operation screen is installed on the surface of the container. The side of the container is provided with a cable outlet, and a brush roller is installed at the cable outlet. The cable enters and exits through the cable outlet.

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