Vessel cable strain relief device

Abstract

The utility model relates to ship's mooring special equipment technical field, concretely is a kind of ship's cable relieving force device, including base, box body being installed on base, hand wheel brake assembly being located on box body, rotatably connected on the shaft of box body and with the fixed cable hook of one end connection of shaft, cable hook is used to hang cable, box body one side is equipped with shaft hole, the other end of shaft away from cable hook is placed in shaft hole;Hand wheel brake assembly includes hand wheel and the screw rod being connected with hand wheel, and box body other side is equipped with screw hole, and screw rod is connected with screw hole by screw thread connection.The utility model structure is simple, easy to make, low in cost, using the above-mentioned ship's cable relieving force device to the cable is operated, can automatically release the inherent torsion of cable, reduce the abrasion and damage due to the twist of cable, to effectively avoid the occurrence of broken cable accident due to the torsion accumulated when ship operation, prolong the service life of cable.

Description

Technical Field

[0001] This utility model relates to the technical field of special equipment for ship mooring, specifically a ship mooring rope tension relief device. Background Technology

[0002] When tugboats are navigating at sea or berthing / unberthing, their mooring lines must withstand various external forces, including those from the assisting vessel, wind, waves, tides, and the tugboat's own movement. These forces can cause a sudden increase in mooring line tension, easily leading to wear and breakage, and potentially damaging the vessel's mooring equipment and even its hull structure. Ensuring safe mooring line operation and preventing breakage is fundamental to guaranteeing normal mooring and towing operations. In severe weather conditions, if tugboats fail to take timely evasive action, their mooring and towing systems will be directly subjected to the combined loads of the external environment. If the hull and mooring lines are improperly arranged, the lines are highly likely to break, causing the vessel to lose control and resulting in serious accidents. This not only leads to economic losses but also threatens the personal safety of those working in the industry. Currently used mooring line fixing or buffering devices have limited buffering effects when dealing with complex external forces, failing to effectively mitigate the instantaneous impact on the mooring lines and thus failing to meet the requirements for safe mooring. Utility Model Content

[0003] To improve the safety and stability of ships during mooring and reduce accidents caused by cable tension issues, this utility model provides a ship cable tension relief device to meet the needs of releasing twisting stress in ship cables under different working conditions, prevent cable breakage accidents, and ensure ship navigation safety.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a ship cable tension relief device, comprising a base, a housing mounted on the base, a handwheel brake assembly disposed on the housing, a rotating shaft rotatably connected to the housing, and a cable hook fixed to one end of the rotating shaft. The cable hook is used to hang the cable. A shaft hole is provided on one side of the housing, and the other end of the rotating shaft away from the cable hook is placed in the shaft hole. The handwheel brake assembly includes a handwheel and a screw fixed to the handwheel. A threaded hole communicating with the shaft hole is provided on the other side of the housing. The screw and the threaded hole are connected by threads. Rotating the handwheel drives the screw to rotate, causing the screw to abut against or move away from the rotating shaft.

[0005] Based on the above technical solution, the present invention can be further improved as follows: As a further improvement to the above technical solution, the top surface of the base extends upward on both sides to form two fixing plates. The two fixing plates are integrally formed with the base. The box is set on the base and sandwiched between the two fixing plates. The box is fixed to the two fixing plates by bolts.

[0006] As a further improvement to the above technical solution, the shaft hole extends horizontally and penetrates the housing, and the screw hole is provided vertically on the top of the housing, with the shaft hole and the screw hole being perpendicular to each other in the axial direction.

[0007] As a further improvement to the above technical solution, the upper end of the screw is connected to the handwheel by welding, and the lower end of the screw is connected to the screw hole of the housing by thread and can abut against the other end of the rotating shaft inside the shaft hole.

[0008] As a further improvement to the above technical solution, a thrust bearing is provided in the shaft hole, and the thrust bearing is sleeved on the other end of the rotating shaft.

[0009] As a further improvement to the above technical solution, a baffle is provided on one side of the housing at the shaft hole. The baffle is circular and is fixed to the housing by fixing bolts to cover the shaft hole.

[0010] As a further improvement to the above technical solution, the diameter of the rotating shaft is set to match the diameter of the shaft hole, and the diameter of the part of the rotating shaft near the baffle is larger to prevent the rotating shaft from disengaging from the shaft hole along the axial direction.

[0011] As a further improvement to the above technical solution, the base is rectangular and made of steel plate, and multiple mounting bolts are provided at the four corners of the base for fixing the base.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure, is easy to manufacture, and has low cost. By using the above-mentioned ship cable tension relief device to operate the cable, the internal torque of the cable can be automatically released, reducing the wear and damage caused by the twisting of the cable, thereby effectively avoiding the occurrence of cable breakage accidents caused by the torque accumulated during ship operation and extending the service life of the cable. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of the ship cable tension relief device provided in a preferred embodiment of the present invention; Figure 2 yes Figure 1 Side sectional view of the ship's cable relief device; Figure 3 yes Figure 1 Top sectional view of the ship's cable tension relief device; Figure 4 yes Figure 1 A schematic diagram of the box structure in the middle; In the diagram: 1. Base; 11. Fixing plate; 12. Mounting bolt; 2. Housing; 21. Shaft hole; 22. Threaded hole; 23. Baffle; 231. Fixing bolt; 3. Handwheel brake assembly; 31. Handwheel; 32. Screw; 4. Shaft; 5. Cable hook; 6. Thrust bearing. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figures 1 to 4As shown, a preferred embodiment of this utility model provides a ship cable tension relief device, including a base 1, a housing 2 mounted on the base 1, a handwheel brake assembly 3 disposed on the housing 2, a rotating shaft 4 rotatably connected to the housing 2, and a cable hook 5 fixedly connected to one end of the rotating shaft 4. The cable hook 5 is used to hang the cable. A shaft hole 21 is provided on one side of the housing 2, and the other end of the rotating shaft 4 away from the cable hook 5 is placed in the shaft hole 21. The handwheel brake assembly 3 includes a handwheel 31 and a screw 32 fixedly connected to the handwheel 31. A screw hole 22 communicating with the shaft hole 21 is provided on the other side of the housing 2. The screw 32 is threadedly connected to the screw hole 22. By rotating the handwheel 31, the screw 32 is driven to rotate, so that the screw 32 abuts against or moves away from the rotating shaft 4.

[0019] The base 1 is rectangular and made of steel plate. Two fixing plates 11 extend upwards from opposite sides of the top surface of the base 1, and these fixing plates 11 are integrally formed with the base 1. The housing 2 is mounted on the base 1 and sandwiched between the two fixing plates 11. The housing 2 and the two fixing plates 11 are fixed together by bolts. The fixing plates 11 are rectangular and made of steel plate. Multiple mounting bolts 12 are provided at the four corners of the base 1 for fixing and mounting the base 1.

[0020] The shaft hole 21 extends horizontally and penetrates the housing 2. The top of the housing 2 is provided with the screw hole 22 vertically. The shaft hole 21 and the screw hole 22 are perpendicular to each other in the axial direction. The housing 2 is made of steel plate.

[0021] The upper end of the screw 32 can be welded to the handwheel 31. The lower end of the screw 32 is connected to the screw hole 22 of the housing 2 by a thread and can abut against the other end of the rotating shaft 4 in the shaft hole 21. By rotating the handwheel 31, the screw 32 is driven to rotate. When the screw 32 abuts against the rotating shaft 4, the rotating shaft 4 and the cable hook 5 are fixed.

[0022] Preferably, a thrust bearing 6 is provided in the shaft hole 21, and the thrust bearing 6 is sleeved on the other end of the rotating shaft 4.

[0023] Preferably, a baffle 23 is provided on one side of the housing 2 at the shaft hole 21. The baffle 23 is circular and made of steel plate. The baffle 23 is fixed to the housing 2 by fixing bolts 231 and covers the shaft hole 21. The diameter of the rotating shaft 4 is set to match the diameter of the shaft hole 21, and the diameter of the part of the rotating shaft 4 near the baffle 23 is larger to prevent the rotating shaft 4 from disengaging from the shaft hole 21 axially.

[0024] In use, the base 1 of the aforementioned ship cable tension relief device is installed on the dock bollard via mounting bolts 12. After the ship is moored at the shore, the cable is hung on the cable hook 5. Then, the handwheel 31 is rotated to drive the screw 32 to rotate, causing the screw 32 to press against the rotating shaft 4, thus fixing the rotating shaft 4 and the cable hook 5. Because ship cables are subjected to complex forces during prolonged use or in rough seas, they are easily damaged. When the cable is subjected to a large external force, and this force exceeds the force exerted by the screw 32 against the rotating shaft 4, the cable hook 5 and the rotating shaft 4 rotate against the force exerted by the screw 32 against the rotating shaft 4, effectively relieving the cable tension and releasing the twisting stress of the ship cable under different working conditions. Currently, the price of a single ship cable on the market is around 40,000 yuan. This ship cable tension relief device effectively reduces cable twisting wear. According to statistical probability, it can reduce the purchase of 3 cables per year, with an estimated total cost saving of 4 × 3 = 120,000 yuan.

[0025] This utility model has a simple structure, is easy to manufacture, and has a low cost. By using the above-mentioned ship cable tension relief device to operate the cable, the internal torque of the cable can be automatically released, reducing wear and damage caused by twisting, thereby effectively avoiding cable breakage accidents caused by torque accumulated during ship operation and extending the service life of the cable.

[0026] Any descriptions not covered in the above specific embodiments of this utility model belong to the well-known technology in the field, and can be implemented by referring to the well-known technology.

[0027] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A ship cable tension relief device, characterized in that: The device includes a base, a housing mounted on the base, a handwheel brake assembly mounted on the housing, a rotating shaft rotatably connected to the housing, and a cable hook fixed to one end of the rotating shaft. The cable hook is used to hang a cable. One side of the housing has a shaft hole, and the other end of the rotating shaft away from the cable hook is placed in the shaft hole. The handwheel brake assembly includes a handwheel and a screw fixed to the handwheel. The other side of the housing has a threaded hole communicating with the shaft hole. The screw is threaded to the threaded hole. Rotating the handwheel drives the screw to rotate, causing the screw to abut against or move away from the rotating shaft.

2. The ship cable tension relief device according to claim 1, characterized in that: The top surface of the base extends upward on both sides to form two fixing plates. The two fixing plates are integrally formed with the base. The box is set on the base and sandwiched between the two fixing plates. The box is fixed to the two fixing plates by bolts.

3. The ship cable tension relief device according to claim 2, characterized in that: The shaft hole extends horizontally and penetrates the housing. The top of the housing is provided with the screw hole vertically. The shaft hole and the screw hole are perpendicular to each other in the axial direction.

4. The ship cable tension relief device according to claim 3, characterized in that: The upper end of the screw is welded to the handwheel, and the lower end of the screw is connected to the screw hole of the housing through a thread and can abut against the other end of the rotating shaft inside the shaft hole.

5. The ship cable tension relief device according to claim 4, characterized in that: A thrust bearing is provided inside the shaft hole, and the thrust bearing is sleeved on the other end of the rotating shaft.

6. The ship cable tension relief device according to claim 5, characterized in that: A baffle is provided on one side of the housing at the shaft hole. The baffle is circular and is fixed to the housing by fixing bolts to cover the shaft hole.

7. The ship cable tension relief device according to claim 6, characterized in that: The diameter of the rotating shaft is set to match the diameter of the shaft hole, and the diameter of the part of the rotating shaft near the baffle is larger to prevent the rotating shaft from detaching from the shaft hole along the axial direction.

8. The ship cable tension relief device according to claim 2, characterized in that: The base is rectangular and made of steel plate, with multiple mounting bolts at the four corners for fixing the base in place.

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