A stern shaft mounting arrangement for a large ship
By combining a motor-driven winding rope with a cylinder spring design, the problems of complex lifting angle adjustment and unstable hook fixation in existing equipment have been solved, enabling automated lifting and stabilization of large ship stern shafts, and improving operational efficiency and safety.
Patent Information
- Application Number
- CN202521232524.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-17
AI Technical Summary
Existing stern shaft installation equipment lacks flexibility, the lifting angle adjustment is complicated, and the hook fixing process is cumbersome and unstable, affecting lifting efficiency and safety.
The operating component, which uses a motor to drive the rope winding, combined with disassembly and stabilization components, enables automated hoisting and quick replacement of hooks. The design of cylinders and springs ensures the stability of the equipment under different angles and loads.
It achieves automation and efficiency in the hoisting process, simplifies the replacement and maintenance of hooks, and improves the stability and reliability of equipment in complex environments.
Smart Images

Figure CN224676367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of installation equipment technology, and more specifically, it relates to a large ship stern shaft installation device. Background Technology
[0002] In existing technologies, existing stern shaft installation equipment is usually designed as a fixed or semi-fixed structure. Although it can bear a certain amount of weight, in actual use, the operation of hoisting and moving the ship's stern shaft is still very cumbersome, and the structure of the equipment may not have enough flexibility to adjust the hoisting angle.
[0003] During the hoisting process, existing equipment typically requires hooks to secure the stern shaft to the hoisting device. The hook securing process can be complex, requiring operators to manually adjust the hook's position and angle to ensure it firmly holds the stern shaft. Releasing the hooks after hoisting is equally cumbersome, requiring operators to manually unhook them and ensure they are not jammed or damaged by other components.
[0004] Existing equipment generally lacks dedicated components for the hook fixing process, making it difficult to guarantee the stability and safety of the hook during hoisting. Typically, hoisting equipment is only equipped with basic hooks, but lacks auxiliary components that can stably fix the hooks during hoisting. Without dedicated fixing devices or auxiliary mechanisms, the hooks are prone to slipping or loosening when subjected to large loads. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a large ship stern shaft installation device to solve the technical problem mentioned in the background art that the structure of existing equipment may not have sufficient flexibility to adjust the lifting angle.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a large ship stern shaft installation device, comprising a base, an operating component on the base, the operating component comprising a movable arm, a motor, a winding roller, a winding rope, and a mounting seat, the movable arm being positioned above the base, the motor mounted on the movable arm, the winding roller being connected to the output end of the motor, the winding rope being wound and connected to the winding roller, the mounting seat being connected to one end of the winding rope, and a disassembly component on the mounting seat, the disassembly component comprising a plug-in post, an abutment sleeve, and a movable sleeve, the plug-in post being mounted on a hook, the plug-in post being detachably mounted on the mounting seat, the plug-in post being placed inside the mounting seat, an insertion rod being installed on the abutment sleeve, an abutment rod being detachably installed inside the abutment sleeve, the abutment sleeve being detachably mounted at one end of the mounting seat, and the movable sleeve being slidably connected to the abutment sleeve.
[0008] The present invention is further configured such that an active arm is fixedly installed on the base, a rotating arm is rotatably connected to the active arm, a first cylinder is hingedly installed on the active arm, the output end of the first cylinder is rotatably connected to the rotating arm, and a placement seat is installed on the base. The cooperation of each component facilitates the completion of the driving process of the first cylinder.
[0009] The present invention is further configured such that a second cylinder is hingedly mounted on the placement seat, an adjusting arm is rotatably connected to one end of the base, a support arm is rotatably connected to the adjusting arm, the support arm is rotatably connected to the output end of the second cylinder, a third cylinder is mounted on the rotating arm, and the output end of the third cylinder is connected to the moving arm. The coordinated use of each component facilitates the completion of the driving process of the third cylinder.
[0010] The present invention is further configured such that a movable rod is uniformly slidably connected to the abutment sleeve, a movable plate is connected to the movable rod, and a connecting plate is connected to the other end of the movable rod. The cooperation of each component facilitates the completion of the movement process of the movable plate.
[0011] The present invention is further configured such that a first spring is sleeved on the movable rod, and the two ends of the first spring are respectively connected to the connecting plate and the abutment sleeve. A rotating ring is rotatably connected to the abutment sleeve, and a through groove is evenly opened on the rotating ring. The through groove is adapted to the movable plate. One end of the movable rod passes through the connecting plate and is inserted into the movable sleeve. Through the cooperative use of each component, the compression process of the first spring is facilitated.
[0012] The present invention is further configured such that a stabilizing component is provided on the abutting sleeve, the stabilizing component including a rotating block, a third spring and a stabilizing groove, the rotating block being uniformly rotatably connected to the abutting sleeve, the third spring being connected between the rotating block and the abutting sleeve, and the stabilizing groove being formed on the abutting rod, the stabilizing groove being adapted to the rotating block, and the cooperation of each component promoting the completion of the compression process of the third spring.
[0013] The present invention is further configured such that a control sleeve is slidably connected to the movable sleeve, a second spring is connected between the control sleeve and the movable sleeve, and a tension rod is slidably connected to the movable sleeve. The cooperation of each component facilitates the compression process of the second spring.
[0014] The present invention is further configured such that a tension spring is installed at one end of the tension rod, one end of the tension rod abuts against the inner side of the control sleeve, one end of the tension rod is inserted into the rotating block, an insertion rod is installed on the abutting sleeve, an abutting rod is detachably installed inside the abutting sleeve, an insertion groove is opened on the abutting rod, the insertion groove is adapted to the insertion rod, an abutting plate is connected to one end of the abutting rod, the abutting plate abuts against one end of the mounting base, and a hook is connected to one end of the insertion post. The cooperation of each component facilitates the completion of the tension spring stretching process. Beneficial effects
[0015] Compared with the prior art, this utility model provides a large ship stern shaft installation device, which has the following beneficial effects: 1. The operating components use a motor to drive the winding roller to wind up the rope, which in turn drives the hook on the mounting base to perform precise lifting operations. This design makes the entire lifting process more automated and efficient. The design of the mobile arm allows the equipment to be flexibly adjusted between different positions, providing adaptability for lifting different types of ship stern shafts and ensuring that lifting work can be carried out smoothly in various environments.
[0016] 2. The design of the disassembly assembly allows the hook to be easily replaced after a certain period of use. By sliding the control sleeve and compressing and releasing the spring, the hook can be quickly released, reducing maintenance time and costs. The disassembly assembly, through the combination of the plug and the abutment sleeve, makes disassembly and installation simple and easy, allowing operators to perform these operations without the need for complicated tools.
[0017] 3. The stabilizing component, through the combined design of the rotating block and the third spring, ensures that the equipment maintains good stability during lifting or unloading operations, reducing the possibility of vibration and tilting, and enhancing the reliability of the equipment. The structural design of the stabilizing component enables it to remain stable under different angles and loads, especially in complex marine operating environments, and can adapt to different loads and operational requirements. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a large ship stern shaft installation device according to the present invention; Figure 2 This is a schematic diagram of the structure of the operating components in this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the disassembly components in this utility model; Figure 6This is a schematic diagram of the stabilizing component in this utility model; Figure 7 This is a cross-sectional view of the stabilizing component in this utility model.
[0019] In the diagram: 1. Base; 2. Moving arm; 3. Motor; 4. Take-up roller; 5. Take-up rope; 6. Mounting seat; 7. Insertion post; 8. Abutment sleeve; 9. Moving sleeve; 10. Active arm; 11. Rotating arm; 12. First cylinder; 13. Placement seat; 14. Second cylinder; 15. Adjusting arm; 16. Support arm; 17. Moving rod; 18. Moving plate; 19. Connecting plate; 20. First spring; 21. Rotating ring; 22. Through slot; 23. Rotating block; 24. Third spring; 25. Stabilizing slot; 26. Control sleeve; 27. Second spring; 28. Tension rod; 29. Tension spring; 30. Insertion rod; 31. Insertion slot; 32. Third cylinder; 34. Abutment plate; 35. Hook. Detailed Implementation
[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0023] Please see Figures 1-7 A large ship stern shaft installation device includes a base 1, on which an operating component is provided. The operating component includes a movable arm 2, a motor 3, a winding roller 4, a winding rope 5, and a mounting base 6. The movable arm 2 is located above the base 1, the motor 3 is mounted on the movable arm 2, the winding roller 4 is connected to the output end of the motor 3, the winding rope 5 is wound and connected to the winding roller 4, and the mounting base 6 is connected to one end of the winding rope 5. The mounting base 6 is provided with a disassembly component, which includes a plug 7, an abutment sleeve 8, and a movable sleeve 9. The plug 7 is mounted on a hook and is detachably mounted on the mounting base 6, with the plug 7 placed inside the mounting base 6. An insertion rod 30 is installed on the abutment sleeve 8, and an abutment rod 33 is detachably installed inside the abutment sleeve 8. The abutment sleeve 8 is detachably mounted on one end of the mounting base 6, and the movable sleeve 9 is slidably connected to the abutment sleeve 8.
[0024] An active arm 10 is fixedly installed on the base 1. A rotating arm 11 is rotatably connected to the active arm 10. A first cylinder 12 is hingedly installed on the active arm 10. The output end of the first cylinder 12 is rotatably connected to the rotating arm 11. A placement seat 13 is installed on the base 1.
[0025] A second cylinder 14 is hingedly mounted on the placement seat 13. An adjusting arm 15 is rotatably connected to one end of the base 1. A support arm 16 is rotatably connected to the adjusting arm 15. The support arm 16 is rotatably connected to the output end of the second cylinder 14. A third cylinder 32 is mounted on the rotating arm 11. The output end of the third cylinder 32 is connected to the moving arm 2.
[0026] A movable rod 17 is evenly slidably connected to the abutment sleeve 8, a movable plate 18 is connected to the movable rod 17, and a connecting plate 19 is connected to the other end of the movable rod 17.
[0027] A first spring 20 is sleeved on the moving rod 17. The two ends of the first spring 20 are respectively connected to the connecting plate 19 and the abutment sleeve 8. A rotating ring 21 is rotatably connected to the abutment sleeve 8. A through groove 22 is evenly opened on the rotating ring 21. The through groove 22 is adapted to the moving plate 18. One end of the moving rod 17 passes through the connecting plate 19 and is inserted into the moving sleeve 9.
[0028] In this embodiment, during use, the first cylinder 12 on the active arm 10 is activated, causing the rotating arm 11 at the output end to rotate along the active arm 10. After rotating to a suitable position, the first cylinder 12 is stopped, and then the third cylinder 32 is activated, causing the moving arm 2 at the output end to slide along the rotating arm 11 to adjust to a suitable position. Next, the motor 3 is activated, causing the winding roller 4 at the output end to rotate, thus winding the winding rope 5. This moves the hook at the mounting seat 6 on the winding rope 5, allowing it to lift the stern shaft of the ship. During use, to ensure the stability of the base 1, the second cylinder 14 is activated, using the placement seat 13 on the base 1. The output end of the second cylinder 14 drives the support arm 16 to rotate along the adjusting arm 15, thus adjusting the angle of the support arm 16 and facilitating support of the base 1. When the hook needs to be replaced after a period of use, the control sleeve 26 is slid along the movable sleeve 9. During this sliding movement, the second spring 27 is compressed. As the control sleeve 26 moves, the abutment on one end of the tension rod 28 is released, causing the tension rod 28 to move under the elastic potential energy of the tension spring 29, moving it away from one end of the rotating block 23. Then, the control sleeve 26 is slid along the movable sleeve 9, compressing the second spring 27. Next, the movable sleeve 9 is slid along the abutment sleeve 8, compressing the first spring 20 between the connecting plate 19 and the abutment sleeve 8. During this movement, the movable rod 17 is moved, causing the movable plate 18 at one end of the movable rod 17 to pass through the through groove 22 on the rotating ring 21. Then, the rotating ring 21 is rotated along the abutment sleeve 8, causing the through groove 22 to move away from the movable plate 18, thus completing the fixing process of the movable rod 17.
[0029] Please see Figure 4-7 As an embodiment of a large ship stern shaft installation device for a stabilizing component: a stabilizing component is provided on the abutment sleeve 8. The stabilizing component includes a rotating block 23, a third spring 24 and a stabilizing groove 25. The rotating block 23 is uniformly rotatably connected to the abutment sleeve 8. The third spring 24 is connected between the rotating block 23 and the abutment sleeve 8. The stabilizing groove 25 is opened on the abutment rod and is adapted to the rotating block 23.
[0030] A control sleeve 26 is slidably connected to the movable sleeve 9, a second spring 27 is connected between the control sleeve 26 and the movable sleeve 9, and a tension rod 28 is slidably connected to the movable sleeve 9.
[0031] A tension spring 29 is installed at one end of the tension rod 28. One end of the tension rod 28 abuts against the inner side of the control sleeve 26. One end of the tension rod 28 is inserted into the rotating block 23. An insertion groove 31 is provided on the abutting rod 33. The insertion groove 31 is adapted to the insertion rod 30. An abutting plate 34 is connected to one end of the abutting rod 33. The abutting plate 34 abuts against one end of the mounting base 6. A hook 35 is connected to one end of the insertion post 7.
[0032] More specifically, after one end of the tension rod 28 is moved out from one end of the rotating block 23, the abutment rod is slid out along the abutment sleeve 8, the mounting base 6, and the insertion post 7. At this time, as the abutment rod 33 moves, the restriction on the abutment rod 33 is released. At this time, under the action of the elastic potential energy of the third spring 24, it is mobilized to rotate along the abutment sleeve 8, so that it is released from the fixing process of the hook 35. At this time, the insertion post 7 on the hook 35 is slid out along the mounting base 6, thereby completing the replacement process. Then, the above operation is repeated in reverse to complete the replacement process.
[0033] In summary, during the use or operation of the overall equipment: During use, by activating the first cylinder 12 on the active arm 10, the rotating arm 11 at the output end rotates along the active arm 10. After rotating to a suitable position, the first cylinder 12 is stopped, and then the third cylinder 32 is activated, causing the moving arm 2 at the output end to slide along the rotating arm 11 to adjust to a suitable position. Next, by activating the motor 3, the take-up roller 4 at the output end rotates, completing the take-up rope 5 winding process. This moves the hook at the mounting seat 6 on the take-up rope 5, allowing it to complete the lifting process of the ship's stern shaft. Furthermore, to ensure the stability of the base 1, the second cylinder 14 is activated. With the cooperation of the placement seat 13 on the base 1, the output end of the second cylinder 14 drives the support arm 16 to rotate along the adjusting arm 15, thereby completing the angle adjustment process of the support arm 16 and facilitating the support of the base 1. During use, when the hook needs to be replaced after a period of use, the control sleeve 26 is slid along the movable sleeve 9. During this sliding movement, the second spring 27 is compressed. As the control sleeve 26 moves, the abutment on one end of the tension rod 28 is released, causing the tension rod 28 to move under the elastic potential energy of the tension spring 29, moving it away from one end of the rotating block 23. Then, the control sleeve 26 is slid along the movable sleeve 9, compressing the second spring 27 during the movement. Next, the movable sleeve 9 is slid along the abutment sleeve 8, compressing the first spring 20 between the connecting plate 19 and the abutment sleeve 8 during the sliding movement. During this movement, the movable rod 17 is moved, causing the movable plate 18 at one end of the movable rod 17 to pass through the through groove 22 on the rotating ring 21. Then, the rotating ring 21 is rotated along the abutment sleeve 8, causing the through groove 22 to move away from the movable plate 18, thus completing the fixing process of the movable rod 17.
[0034] After one end of the tension rod 28 is moved out of one end of the rotating block 23, the abutment rod is slid out along the abutment sleeve 8, the mounting base 6, and the insertion post 7. At this time, as the abutment rod 33 moves, the restriction on the abutment rod 33 is released. At this time, under the action of the elastic potential energy of the third spring 24, it is mobilized to rotate along the abutment sleeve 8, so that it is released from the fixing process of the hook 35. At this time, the insertion post 7 on the hook 35 is slid out along the mounting base 6, thereby completing the replacement process. Then, the above operation is repeated in reverse to complete the replacement process.
[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A large ship stern shaft mounting device, comprising a base (1), characterized in that: An operating assembly is provided on the base (1). The operating assembly includes a moving arm (2), a motor (3), a take-up roller (4), a take-up rope (5), and a mounting base (6). The moving arm (2) is located above the base (1). The motor (3) is mounted on the moving arm (2). The take-up roller (4) is connected to the output end of the motor (3). The take-up rope (5) is wound around the take-up roller (4). The mounting base (6) is connected to one end of the take-up rope (5). A disassembly assembly is provided on the mounting base (6). The disassembly assembly includes a plug (7), an abutment sleeve (8), and a movable sleeve (9). The plug (7) is mounted on a hook and is detachably mounted on a mounting base (6). The plug (7) is placed inside the mounting base (6). An insertion rod (30) is mounted on the abutment sleeve (8). An abutment rod (33) is detachably mounted inside the abutment sleeve (8). The abutment sleeve (8) is detachably mounted on one end of the mounting base (6). The movable sleeve (9) is slidably connected to the abutment sleeve (8).
2. The large ship stern shaft installation equipment according to claim 1, characterized in that: An active arm (10) is fixedly installed on the base (1), a rotating arm (11) is rotatably connected to the active arm (10), a first cylinder (12) is hinged on the active arm (10), the output end of the first cylinder (12) is rotatably connected to the rotating arm (11), and a placement seat (13) is installed on the base (1).
3. The large ship stern shaft installation equipment according to claim 2, characterized in that: A second cylinder (14) is hinged on the placement seat (13). An adjusting arm (15) is rotatably connected to one end of the base (1). A support arm (16) is rotatably connected to the adjusting arm (15). The support arm (16) is rotatably connected to the output end of the second cylinder (14). A third cylinder (32) is installed on the rotating arm (11). The output end of the third cylinder (32) is connected to the moving arm (2).
4. The large ship stern shaft installation equipment according to claim 3, characterized in that: A movable rod (17) is evenly slidably connected on the abutment sleeve (8), a movable plate (18) is connected on the movable rod (17), and a connecting plate (19) is connected to the other end of the movable rod (17).
5. A large ship stern shaft installation device according to claim 4, characterized in that: A first spring (20) is sleeved on the moving rod (17). The two ends of the first spring (20) are connected to the connecting plate (19) and the abutment sleeve (8) respectively. A rotating ring (21) is rotatably connected on the abutment sleeve (8). A through groove (22) is evenly opened on the rotating ring (21). The through groove (22) is adapted to the moving plate (18). One end of the moving rod (17) passes through the connecting plate (19) and is inserted into the moving sleeve (9).
6. A large ship stern shaft installation device according to any one of claims 1-5, characterized in that: The abutment sleeve (8) is provided with a stabilizing component, which includes a rotating block (23), a third spring (24) and a stabilizing groove (25). The rotating block (23) is uniformly rotatably connected to the abutment sleeve (8). The third spring (24) is connected between the rotating block (23) and the abutment sleeve (8). The stabilizing groove (25) is opened on the abutment rod and is adapted to the rotating block (23).
7. A large ship stern shaft installation device according to claim 6, characterized in that: A control sleeve (26) is slidably connected to the movable sleeve (9), a second spring (27) is connected between the control sleeve (26) and the movable sleeve (9), and a tension rod (28) is slidably connected to the movable sleeve (9).
8. A large ship stern shaft installation device according to claim 7, characterized in that: One end of the tension rod (28) is equipped with a tension spring (29), one end of the tension rod (28) abuts against the inner side of the control sleeve (26), one end of the tension rod (28) is inserted into the rotating block (23), the abutting rod (33) is provided with an insertion groove (31), the insertion groove (31) is adapted to the insertion rod (30), one end of the abutting rod (33) is connected to an abutting plate (34), the abutting plate (34) abuts against one end of the mounting base (6), and one end of the insertion post (7) is connected to a hook (35).