Constant-tension cutting hydraulic winch

By designing a constant tension cutting hydraulic winch, the problems of low automation and easy contamination of cutting tools in underwater large steel structure cutting were solved by using a hydraulic drive system and a spraying mechanism, thus achieving efficient and stable underwater cutting results.

CN224073466UActive Publication Date: 2026-04-03Shanghai Salvage Bureau of the Ministry of Transport
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies have low automation and low cutting efficiency in underwater large steel structure cutting, and the cutting tools are easily affected by water impurities and corrosive substances, resulting in a decline in cutting performance.

Method used

Design a constant tension cutting hydraulic winch. The hydraulic drive system converts mechanical energy into hydraulic energy, which drives the oil motor to rotate the drum and wind the diamond wire saw for cutting. A rinsing mechanism is installed on the top of the reinforced steel structure of the winch to wash the diamond wire saw and prevent impurities and corrosive substances from adhering.

Benefits of technology

It achieves high-precision and durable underwater cutting, avoids tool performance degradation during underwater cutting, and improves cutting efficiency and automation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224073466U_ABST
    Figure CN224073466U_ABST
Patent Text Reader

Abstract

The utility model provides a constant tension cutting hydraulic winch, which relates to the technical field of underwater large steel structure cutting, and comprises a base, an oil motor, a reinforced winch steel structure, a diamond rope saw and a hydraulic driving system, the reinforced winch steel structure is arranged on the base, a winding drum is rotatably arranged on the reinforced winch steel structure, the winding drum is driven by the oil motor, and the diamond rope saw is arranged on the winding drum. A diamond rope saw is wound on the winding drum, a hydraulic driving system is arranged on the base on one side of the reinforced winch steel structure, the hydraulic driving system is connected with an oil motor, and a showering mechanism is arranged at the top of the reinforced winch steel structure; mechanical energy is converted into hydraulic energy through the hydraulic driving system, high-pressure hydraulic oil is generated, the oil motor is driven, the hydraulic energy is converted into the mechanical energy to drive the winding drum to rotate, when the winding drum rotates, the diamond rope saw wound on the winding drum acts to cut a ship body, and the diamond rope saw has the advantages of being high in cutting precision and durability. And underwater cutting can be stably adapted.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of underwater large steel structure cutting technology, and in particular to a constant tension cutting hydraulic winch. Background Technology

[0002] In the shipwreck salvage industry, cutting large shipwrecks is a crucial process. A common cutting method involves using a chain hoist or ship crane in conjunction with a chainsaw anchor chain to cut the hull, tearing at the ship's structure by repeatedly pulling the chainsaw and anchor chain back and forth. This method is slow, lacks automation, and is inefficient.

[0003] Currently, high-power constant tension winches are commonly used as mooring hydraulic systems, which are widely used in roll-on / roll-off ship ramps, dredgers, pipeline laying vessels, offshore drilling platforms, and other vessels. In recent years, constant tension winches have also become increasingly common in marine engineering projects, such as marine buoy release and recovery systems and saturation diving LARS systems. However, there are no known cases of cutting sunken ships or similar large steel structures underwater. Therefore, this invention proposes a constant tension cutting hydraulic winch to address the shortcomings of existing technologies. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a constant tension cutting hydraulic winch. Through a hydraulic drive system, mechanical energy is converted into hydraulic energy to generate high-pressure hydraulic oil, which drives an oil motor to convert hydraulic energy into mechanical energy to rotate the drum. When the drum rotates, the diamond wire saw wound on the drum moves to cut the hull. Diamond wire saw cutting has the advantages of high cutting accuracy and durability, and can stably adapt to underwater cutting.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A constant tension cutting hydraulic winch includes a base, a hydraulic motor, a reinforced winch steel structure, a diamond wire saw, and a hydraulic drive system. The reinforced winch steel structure is mounted on the base, and a drum is rotatably mounted on the reinforced winch steel structure. The drum is driven by the hydraulic motor, and a diamond wire saw is wound on the drum. A hydraulic drive system is mounted on the base on one side of the reinforced winch steel structure and is connected to the hydraulic motor. A rinsing mechanism is provided on the top of the reinforced winch steel structure. The rinsing mechanism includes a mounting plate, a water tank, a moving module, and rinsing nozzles. A water tank is located on one side of the top of the mounting plate, and a mounting groove is provided on the top of the mounting plate. The moving module is located in the mounting groove, and a rinsing nozzle is located at the bottom of the moving module. A hose is located below the front of the water tank and is connected to the rinsing nozzle.

[0007] A further improvement is that the moving module includes a linear lead screw and a moving seat. The linear lead screw is rotatably mounted inside the mounting slot. The linear lead screw is driven by a motor. The moving seat is connected to the linear lead screw and is slidably connected to the mounting slot.

[0008] A further improvement is that the movable base is provided with a mounting hole, and the flushing nozzle is installed in the mounting hole.

[0009] A further improvement is that: a water collection trough is provided on the top of the base, the position of the water collection trough is adapted to the position of the flushing nozzle, and a drain pipe connection port is provided on one side of the water collection trough.

[0010] A further improvement is that: a filter plate is provided inside the water collection tank, positioning plates are provided on both sides of the filter plate, and positioning grooves are provided on both sides of the top of the water collection tank, with the positioning plates engaging with the positioning grooves.

[0011] A further improvement is that: a first fixing plate is symmetrically provided below the front side wall of the water collection tank, and the first fixing plate is detachably installed to the top of the base by a first fixing bolt.

[0012] A further improvement is that: a second fixing plate is symmetrically provided on the rear side wall of the mounting plate, and the second fixing plate is detachably installed to the top of the reinforced winch steel structure by means of a second fixing bolt.

[0013] The beneficial effects of this utility model are as follows: This utility model consists of a base, an oil motor, a reinforced winch steel structure, a diamond wire saw, and a hydraulic drive system to form a constant tension cutting hydraulic winch. The hydraulic drive system converts mechanical energy into hydraulic energy to generate high-pressure hydraulic oil, which drives the oil motor to convert hydraulic energy into mechanical energy to rotate the drum. When the drum rotates, the diamond wire saw wound on the drum moves to cut the hull. Diamond wire saw cutting has the advantages of high cutting accuracy and durability and can stably adapt to underwater cutting.

[0014] This invention utilizes a rinsing mechanism installed on the top of a reinforced winch steel structure to rinse the wound-up diamond wire saw, preventing impurities and corrosive substances in the water from adhering to the surface of the diamond wire saw and corroding it, thus avoiding a decline in the cutting performance of the diamond wire saw. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram showing the installation and disassembly of the filter plate and water collection tank of this utility model.

[0017] The components include: 1. Base; 2. Reinforced winch steel structure; 3. Diamond wire saw; 4. Drum; 5. Mounting plate; 6. Water tank; 7. Flushing nozzle; 8. Mounting groove; 9. Hose; 10. Linear lead screw; 11. Moving seat; 12. Water collection tank; 13. Drain pipe connection port; 14. Filter plate; 15. Positioning plate; 16. Positioning groove; 17. First fixing bolt; 18. Second fixing bolt. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. Example 1

[0019] according to Figure 1-2 As shown, this embodiment proposes a constant tension cutting hydraulic winch, which includes a base 1, a hydraulic motor, a reinforced winch steel structure 2, a diamond wire saw 3, and a hydraulic drive system. The reinforced winch steel structure 2 is mounted on the base 1, and a drum 4 is rotatably mounted on the reinforced winch steel structure 2. The drum 4 is driven by the hydraulic motor, and the diamond wire saw 3 is wound on the drum 4. A hydraulic drive system is provided on one side of the base 1 of the reinforced winch steel structure 2, and the hydraulic drive system is connected to the hydraulic motor. A rinsing mechanism is provided on the top of the reinforced winch steel structure 2. The rinsing mechanism includes a mounting plate 5, a water tank 6, a moving module, and rinsing nozzles 7. A water tank 6 is provided on one side of the top of the mounting plate 5, and a mounting groove 8 is provided on the top of the mounting plate 5. A moving module is provided in the mounting groove 8, and a rinsing nozzle 7 is provided at the bottom of the moving module. A hose 9 is provided below the front of the water tank 6, and the hose 9 is connected to the rinsing nozzle 7. This invention is made of corrosion-resistant alloy steel, which can adapt to the marine environment, and the reinforced winch steel structure 2 can withstand high-tension dynamic loads.

[0020] When installing and using the constant tension cutting hydraulic winch of this utility model, the base 1 is first fixed to the hull plate, and the reinforced winch steel structure 2 is assembled with the base 1. When cutting the hull, two boats can work together, with the two working boats spanning both sides of the sunken ship. The winch system pulls and cuts synchronously. During cutting, the hydraulic drive system converts mechanical energy into hydraulic energy, generating high-pressure hydraulic oil, which drives the oil motor to convert hydraulic energy into mechanical energy to rotate the drum 4. When the drum 4 rotates, the diamond wire saw 3 wound on the drum 4 moves to cut the hull. When the diamond wire saw 3 is wound up, it is rinsed by a rinsing mechanism to prevent impurities in the water from adhering to it and affecting the next use. The moving module drives the rinsing nozzle 7 to move according to the change in the winding position of the diamond wire saw 3, so that the rinsing nozzle 7 is always aligned with the diamond wire saw 3. Then, the rinsing water in the water tank 6 enters the rinsing nozzle 7 through the hose 9 to rinse the diamond wire saw 3.

[0021] The movable module includes a linear lead screw 10 and a movable base 11. The linear lead screw 10 is rotatably mounted inside the mounting groove 8. The linear lead screw 10 is driven by a motor, and the movable base 11 is connected to the linear lead screw 10. The movable base 11 is slidably connected to the mounting groove 8. The movable base 11 has a mounting hole, and the flushing nozzle 7 is installed in the mounting hole. The motor is started synchronously to control the rotation of the linear lead screw 10, and then the movable base 11 moves within the mounting groove 8, thereby moving the flushing nozzle 7 to a different position. The flushing nozzle 7 follows the diamond wire saw 3 and flushes the diamond wire saw 3. Example 2

[0022] according to Figure 1-2 As shown, this embodiment proposes a constant tension cutting hydraulic winch, which includes a base 1, a hydraulic motor, a reinforced winch steel structure 2, a diamond wire saw 3, and a hydraulic drive system. The reinforced winch steel structure 2 is mounted on the base 1, and a drum 4 is rotatably mounted on the reinforced winch steel structure 2. The drum 4 is driven by the hydraulic motor, and the diamond wire saw 3 is wound on the drum 4. A hydraulic drive system is provided on one side of the base 1 of the reinforced winch steel structure 2, and the hydraulic drive system is connected to the hydraulic motor. A rinsing mechanism is provided on the top of the reinforced winch steel structure 2. The rinsing mechanism includes a mounting plate 5, a water tank 6, a moving module, and rinsing nozzles 7. A water tank 6 is provided on one side of the top of the mounting plate 5, and a mounting groove 8 is provided on the top of the mounting plate 5. A moving module is provided in the mounting groove 8, and a rinsing nozzle 7 is provided at the bottom of the moving module. A hose 9 is provided below the front of the water tank 6, and the hose 9 is connected to the rinsing nozzle 7.

[0023] The base 1 has a water collection tank 12 at its top, which is positioned to match the position of the flushing nozzle 7. A drain pipe connection port 13 is located on one side of the water collection tank 12. A filter plate 14 is installed inside the water collection tank 12, with positioning plates 15 on both sides of the filter plate 14. Positioning grooves 16 are located on both sides of the top of the water collection tank 12, and the positioning plates 15 engage with the positioning grooves 16. This invention, by setting up the water collection tank 12, can collect the flushing water from the shower mechanism. During collection, the flushing water can be filtered through the filter plate 14. The drain pipe connection port 13 is used to connect an external pipe to drain the water from the water collection tank 12, preventing water from flowing onto the ship's deck. The filter plate 14 of this invention, by engaging with the positioning grooves 16, allows for quick assembly and disassembly, facilitating regular cleaning of the filter plate 14.

[0024] A first fixing plate is symmetrically arranged on the lower front side wall of the water collection tank 12. The first fixing plate is detachably installed to the top of the base 1 by a first fixing bolt 17. A second fixing plate is symmetrically arranged on the rear side wall of the mounting plate 5. The second fixing plate is detachably installed to the top of the reinforced winch steel structure 2 by a second fixing bolt 18. The bolt fixing allows both the shower mechanism and the water collection tank 12 of this utility model to be disassembled, facilitating flexible assembly.

[0025] This utility model consists of a base 1, an oil motor, a reinforced winch steel structure 2, a diamond wire saw 3, and a hydraulic drive system to form a constant tension cutting hydraulic winch. The hydraulic drive system converts mechanical energy into hydraulic energy, generating high-pressure hydraulic oil, which drives the oil motor to convert hydraulic energy into mechanical energy and rotate the drum 4. When the drum 4 rotates, the diamond wire saw 3 wound on the drum 4 moves to cut the hull. The diamond wire saw 3 has the advantages of high cutting accuracy and durability and can stably adapt to underwater cutting.

[0026] This utility model can wash the wound diamond wire saw 3 by setting a rinsing mechanism on the top of the reinforced winch steel structure 2, so as to avoid impurities and corrosive substances in the water from adhering to the surface of the diamond wire saw 3 and corroding the diamond wire saw 3, thus avoiding the problem of reduced cutting performance of the diamond wire saw 3.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A constant tension cutting hydraulic winch characterized by: The utility model provides a kind of diamond rope sawing machine, including pedestal (1), oil motor, reinforced winch steel structure (2), diamond rope saw (3) and hydraulic drive system, the pedestal (1) is installed with reinforced winch steel structure (2), the reinforced winch steel structure (2) is rotatably equipped with reel (4), the reel (4) is driven by oil motor, the reel (4) is wound with diamond rope saw (3), the pedestal (1) of the side of reinforced winch steel structure (2) is equipped with hydraulic drive system, the hydraulic drive system is connected with oil motor, the reinforced winch steel structure (2) top is equipped with shower mechanism, the shower mechanism includes mounting plate (5), water tank (6), mobile module and flush nozzle (7), the water tank (6) is equipped on the top side of mounting plate (5), the mounting plate (5) top is equipped with installation groove (8), the installation groove (8) is equipped with mobile module, the mobile module bottom is equipped with flush nozzle (7), the water tank (6) front lower side is equipped with hose (9), the hose (9) is connected flush nozzle (7).

2. A constant tension cutting hydraulic winch according to claim 1, characterised in that: The mobile module includes linear lead screw (10) and mobile seat (11), the installation groove (8) is rotatably equipped with linear lead screw (10), the linear lead screw (10) is driven by motor, the linear lead screw (10) is connected with mobile seat (11), and the mobile seat (11) is slidably connected with the installation groove (8).

3. A constant tension cutting hydraulic winch according to claim 2, characterised in that: The mobile seat (11) is equipped with mounting hole, and the flush nozzle (7) is arranged in the mounting hole.

4. A constant tension cutting hydraulic winch as claimed in claim 1, wherein: The top of the pedestal (1) is provided with a water collecting tank (12), and the position of the water collecting tank (12) is matched with the position of the flush nozzle (7).

5. A constant tension cutting hydraulic winch according to claim 4, characterised in that: The inside of the water collecting tank (12) is provided with a filter plate (14), and the filter plate (14) is provided with a positioning plate (15) on both sides.

6. A constant tension cutting hydraulic winch according to claim 4, wherein: The front side wall of the water collecting tank (12) is symmetrically provided with a first fixing plate, and the first fixing plate is detachably mounted on the top of the pedestal (1) by a first fixing bolt (17).

7. A constant tension cutting hydraulic winch as claimed in claim 1, wherein: The rear side wall of the mounting plate (5) is symmetrically provided with a second fixing plate, and the second fixing plate is detachably mounted on the top of the reinforced winch steel structure (2) by a second fixing bolt (18).