Liftable outer wheel structure of ship

Abstract

The utility model provides a ship lifting type outer wheel structure which comprises a ship body, a wheel body is installed on the outer side of the tail end of the ship body, connecting shafts are fixed to the two sides of the wheel body, driving shafts are rotatably installed at the positions, corresponding to the connecting shafts, of the ship body, and flanges are fixed between the connecting shafts and the driving shafts. Lifting assemblies are arranged on the surfaces, located on the two sides of the wheel body, of the ship body, each lifting assembly comprises a hanging bracket, the bottoms of the two ends of each hanging bracket are rotationally installed on the ship body, the surfaces of connecting shafts on the two sides of the wheel body are rotationally sleeved with first shaft rings, and connecting plates are fixed to the surfaces of the first shaft rings. The hanging bracket is rotated to be in a vertical shape, through meshing transmission of the gear and the gear ring, the movable frame synchronously rotates downwards, the buckle frame makes contact with the bottom of the wheel body, the wheel body is pulled through the hanging rope, meanwhile, the buckle frame supports the bottom of the wheel body, the stability of the wheel body in the lifting process is improved, and shaking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ship maintenance technology, specifically to a ship's liftable outer wheel structure. Background Technology

[0002] A paddlewheel is a partially submerged propulsion device, somewhat resembling a wheel in shape. Located on the outer side of the vessel, its horizontal axle lies above the waterline along the width of the hull, and its circumference is fitted with paddles (or blades). During operation, the paddles propel the paddlewheel backward, and the paddlewheel itself experiences a reaction force from the water flow. This reaction force is transmitted through the axle to the hull, propelling the vessel forward. Paddlewheels mounted on the side of the hull are called sidewheels, and those mounted at the stern are called sternwheels. Currently, paddlewheels are still used in some inland waterway vessels.

[0003] Patent CN217170947U proposes a paddle wheel connection structure for small ships. The paddle wheel axle is supported by a modular bearing system and installed on the hull. The structure is simple, easy to use and install, rotates smoothly, and runs stably. The paddle wheel axle is connected to a flanged sleeve via a connecting key and is connected to the paddle wheel via a flange. Maintenance and disassembly are convenient. The paddle wheel axle end is fixed by a retaining washer and a round nut, which further improves the reliability and service life of the paddle wheel connection.

[0004] While the above solution improves the ease of disassembling and assembling the paddle wheel, the paddle wheel itself is large and heavy. During maintenance and repair, it needs to be disassembled and lifted. Existing technology requires additional lifting equipment to lift the paddle wheel, which is inconvenient. Furthermore, conventional lifting methods are not very stable for the paddle wheel and are prone to shaking. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a retractable outer wheel structure for ships to solve the problems mentioned in the background. This utility model has a novel structure. When the wheel needs to be lifted, the lifting frame is rotated to a vertical position. Through the meshing transmission of gears and gear rings, the moving frame rotates downward synchronously, so that the buckle frame contacts the bottom of the wheel. The wheel is pulled by the lifting rope, and at the same time, the buckle frame supports the bottom of the wheel to increase the stability of the wheel during the lifting process and prevent swaying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ship's liftable outer wheel structure, comprising a hull, a wheel mounted on the outer side of the stern end of the hull, connecting shafts fixed on both sides of the wheel, a drive shaft rotatably mounted on the hull corresponding to the position of the connecting shaft, a flange fixed between the connecting shaft and the drive shaft, a lifting assembly provided on the surface of the hull on both sides of the wheel, the lifting assembly comprising a hanger, the bottom ends of the hanger rotatably mounted on the hull, a first axle collar rotatably sleeved on the surface of the connecting shaft on both sides of the wheel, and a connecting plate fixed on the surface of the first axle collar, a lifting rope rotatably connected to the top of the connecting plate, the other end of the lifting rope being wound on the hanger, movable frames provided on both sides of the drive shaft, a horizontal plate fixed at one end of the movable frame, a buckle frame fixed between the two horizontal plates, and the buckle frame being slidably connected to the outer surface of the wheel.

[0007] Furthermore, the lifting assembly also includes a rotating shaft. The rotating shaft is fixed at the bottom of both sides of the hanger. A drive box is fixed at the position of the rotating shaft on the hull. The drive box contains a drive motor, and the rotating shaft is fixedly connected to the output end of the drive motor in the drive box.

[0008] Furthermore, a second collar is rotatably sleeved on the surface of the drive shaft, and a gear ring is fixed on the surface of the second collar. A gear is meshed with the top of the gear ring, and the gear is fixedly connected to the rotating shaft.

[0009] Furthermore, a movable plate is fixed on the outer surface of the second collar, and the movable plate slides along the inside of the movable frame.

[0010] Furthermore, the top of the movable frame is provided with a movable groove, and a movable block is slidably connected inside the movable groove, the movable block being fixedly connected to the movable plate.

[0011] Furthermore, a screw is rotatably mounted inside the movable slot via a bearing, the movable block is threaded onto the screw, and a second motor is fixed on the outer side of the movable frame at one end of the screw, with the output end of the second motor fixedly connected to the screw.

[0012] Furthermore, two winding seats are symmetrically fixed to the top of the hanger, and the winding shafts of the two winding seats are fixedly connected, with the hanging rope wound on the winding shaft.

[0013] Furthermore, a first motor is fixed at the top of the hanger, located at the position of the take-up seat on one side, and the output end of the first motor is fixedly connected to the take-up shaft of the take-up seat.

[0014] The beneficial effects of this utility model are:

[0015] 1. After the hanger is rotated to a vertical position, the first motor drives the winding shafts of the two winding seats to rotate synchronously. The lifting rope pulls the disassembled wheel body upward. During this process, the bottom of the wheel body is supported by the buckle frame, making the lifting rope less labor-intensive and the lifting and lowering of the wheel body more convenient and stable.

[0016] 2. In this utility model, after the moving frame and the moving plate rotate to a vertical position, the second motor is turned on to drive the screw to rotate. The moving block and the screw are threaded together and move along the moving groove, so that the moving frame moves upward. During this process, because the buckle frame is initially in sliding contact with the wheel body, and the buckle frame is located at the bottom of the wheel body after the moving frame rotates, the buckle frame gives the wheel body an upward thrust during this process, which helps to raise and lower the wheel body. Furthermore, because the buckle frame limits the wheel body, it can prevent the wheel body from shaking during the raising and lowering process.

[0017] 3. In normal use, the hanger is horizontally stored on the surface of the hull, and the moving frame is also horizontally located on both sides of the wheel. When the wheel needs to be lifted, the drive box controls the rotating shaft to rotate, turning the hanger into a vertical position. During this process, the lifting rope rotates vertically along with the connecting plate, the gear meshes with the gear ring, and the moving frame rotates synchronously in opposite directions with the hanger. The buckle frame rotates along the arc surface of the wheel to the bottom, thus facilitating the lifting and lowering of the wheel from the top and bottom.

[0018] 4. Compared with the prior art, when the wheel needs to be lifted, the lifting frame is rotated to a vertical position. Through the meshing transmission of gears and gear rings, the moving frame rotates downward synchronously, so that the buckle frame contacts the bottom of the wheel. The wheel is pulled by the lifting rope, and the buckle frame supports the bottom of the wheel to increase the stability of the wheel during the lifting process and prevent swaying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a ship's liftable outer wheel structure according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the wheel body and the drive shaft of a ship's retractable outer wheel structure according to this utility model;

[0021] Figure 3 This is a schematic diagram of the lifting component structure of a ship's liftable outer wheel structure according to the present invention;

[0022] Figure 4 This is a schematic diagram of the top structure of the gantry of a ship's liftable outer wheel structure according to the present invention;

[0023] Figure 5 This is a schematic diagram showing the connection between the movable frame and the buckle frame of a ship's liftable outer wheel structure according to this utility model;

[0024] Figure 6This is a schematic diagram showing the connection between the movable frame and the second shaft collar of a ship's liftable outer wheel structure according to this utility model.

[0025] In the diagram: 1. Hull; 11. Drive shaft; 2. Wheel; 21. Connecting shaft; 3. Lifting assembly; 31. First collar; 32. Connecting plate; 33. Lifting rope; 34. Second collar; 35. Gear ring; 36. Gear; 37. Rotating shaft; 38. Drive box; 39. Hanger; 310. Moving frame; 311. Rewinding seat; 312. First motor; 313. Moving plate; 314. Second motor; 315. Horizontal plate; 316. Buckle frame; 317. Moving groove; 318. Screw; 319. Moving block; 4. Flange. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Please see Figures 1 to 6 This utility model provides a technical solution: a ship's liftable outer wheel structure, including a hull 1, a wheel 2 mounted on the outer side of the stern end of the hull 1, connecting shafts 21 fixed on both sides of the wheel 2, a drive shaft 11 rotatably mounted on the hull 1 corresponding to the position of the connecting shafts 21, a flange 4 fixed between the connecting shafts 21 and the drive shaft 11, and a lifting assembly 3 provided on the surfaces of the hull 1 on both sides of the wheel 2, the lifting assembly 3 including a hanger 39, the bottom ends of the hanger 39 rotatably mounted on the hull 1, a first axle collar 31 rotatably sleeved on the surface of the connecting shafts 21 on both sides of the wheel 2, and a connecting plate 32 fixed on the surface of the first axle collar 31, the top of the connecting plate 32 rotatably connected to a lifting rope 33. The other end of the lifting rope 33 is wound on the hanger 39. The drive shaft 11 is provided with movable frames 310 on both sides, and a horizontal plate 315 is fixed to one end of the movable frame 310. A buckle frame 316 is fixed between the two horizontal plates 315, and the buckle frame 316 is slidably connected to the outer surface of the wheel body 2. When the wheel body 2 is in normal use, it is connected to the drive shaft 11 of the hull 1 through the connecting shaft 21 and the flange 4. The specific driving method is the same as that of existing paddle wheels and ship drive connections. When the wheel body 2 needs to be removed, the connecting shaft 21 and the flange 4 of the drive shaft 11 are disconnected. Then the hanger 39 and the movable frame 310 of the drive assembly rotate to a vertical position. The wheel body 2 is raised by the traction at the top and the lifting at the bottom, which facilitates subsequent inspection and maintenance.

[0028] In this embodiment, the lifting assembly 3 further includes a rotating shaft 37. Rotating shafts 37 are fixed to the bottom of both sides of the hanger 39. A drive box 38 is fixed to the hull 1 at the position corresponding to the rotating shaft 37. The drive box 38 houses a drive motor, and the rotating shaft 37 is fixedly connected to the output end of the drive motor within the drive box 38. A second collar 34 is rotatably sleeved on the surface of the drive shaft 11, and a gear ring 35 is fixed to the surface of the second collar 34. A gear 36 is meshed with the top of the gear ring 35. The gear 36 is engaged with the rotating shaft 37. With a fixed connection, when the wheel body 2 is in normal use, the hanger 39 is horizontally stored on the surface of the hull 1, and the moving frame 310 is also horizontally located on both sides of the wheel body 2. When the wheel body 2 needs to be lifted, the drive box 38 controls the rotating shaft 37 to rotate, turning the hanger 39 into a vertical position. During this process, the lifting rope 33 rotates vertically along with the connecting plate 32, the gear 36 meshes with the gear ring 35, and the moving frame 310 rotates synchronously in the opposite direction to the hanger 39. The buckle frame 316 rotates along the arc surface of the wheel body 2 to the bottom, thus facilitating the lifting and lowering of the wheel body 2 from the top and bottom.

[0029] In this embodiment, a movable plate 313 is also fixed on the outer surface of the second collar 34. The movable plate 313 slides along the inside of the movable frame 310. A movable groove 317 is provided on the top of the movable frame 310, and a movable block 319 is slidably connected inside the movable groove 317. The movable block 319 is fixedly connected to the movable plate 313. A screw 318 is rotatably installed inside the movable groove 317 through a bearing. The movable block 319 is threaded onto the screw 318. A second motor 314 is fixed on the outer side of the movable frame 310 at a position corresponding to one end of the screw 318, and the output end of the second motor 314 is connected to the screw 318. 18. After the movable frame 310 and movable plate 313 rotate to a vertical position, the second motor 314 is turned on to drive the screw 318 to rotate. The movable block 319 and the screw 318 are threaded together and move along the movable groove 317, so that the movable frame 310 moves upward. During this process, because the buckle frame 316 initially slides in contact with the wheel 2, and the buckle frame 316 is located at the bottom of the wheel 2 after the movable frame 310 rotates, the buckle frame 316 gives the wheel 2 an upward thrust during this process, assisting in raising and lowering the wheel 2. And because the buckle frame 316 limits the wheel 2, it can prevent the wheel 2 from shaking during the raising and lowering process.

[0030] In this embodiment, two take-up seats 311 are symmetrically fixed to the top of the hanger 39. The take-up shafts of the two take-up seats 311 are fixedly connected, and the hanging rope 33 is wound on the take-up shaft. A first motor 312 is fixed at the top of the hanger 39 at the position of one of the take-up seats 311, and the output end of the first motor 312 is fixedly connected to the take-up shaft of the take-up seat 311. After the hanger 39 rotates to a vertical position, the first motor 312 drives the take-up shafts of the two take-up seats 311 to rotate synchronously. The hanging rope 33 pulls the disassembled wheel 2 upward. During this process, the bottom of the wheel 2 is supported by the buckle frame 316, making the hanging rope 33 more labor-saving and the lifting and lowering of the wheel 2 more convenient and stable.

[0031] When wheel 2 is in normal use, it is connected to the drive shaft 11 of hull 1 via connecting shaft 21 and flange 4. The specific driving method is the same as that of existing paddle wheels and ship drive connections. When wheel 2 needs to be removed, the connection between connecting shaft 21 and flange 4 of drive shaft 11 is disconnected. When wheel 2 needs to be lifted, drive box 38 controls rotating shaft 37 to rotate, turning hanger 39 into a vertical position. During this process, lifting rope 33 rotates vertically along with connecting plate 32, gear 36 meshes with gear ring 35, moving frame 310 rotates synchronously in opposite directions with hanger 39, and buckle frame 316 rotates along the arc surface of wheel 2 to the bottom, thus facilitating lifting and lowering of wheel 2 from the top and bottom. After hanger 39 rotates vertically, first motor 312 drives the winding shafts of two winding seats 311 to rotate synchronously. When the suspension rope 33 is activated, it pulls the disassembled wheel 2 upward. During this process, the bottom of the wheel 2 is supported by the buckle frame 316, making the suspension rope 33 less labor-intensive and the lifting and lowering of the wheel 2 more convenient and stable. The second motor 314 is activated to drive the screw 318 to rotate. The moving block 319 moves along the moving groove 317 with the screw 318 in threaded engagement, causing the moving frame 310 to move upward. During this process, because the buckle frame 316 initially slides in contact with the wheel 2, and the buckle frame 316 is located at the bottom of the wheel 2 after the moving frame 310 rotates, the buckle frame 316 provides an upward thrust to the wheel 2, assisting in lifting and lowering the wheel 2. Furthermore, because the buckle frame 316 limits the wheel 2, it can prevent the wheel 2 from shaking during the lifting and lowering process, which is convenient for subsequent inspection and maintenance.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ship's retractable outer wheel structure, comprising a hull (1), characterized in that: A wheel (2) is mounted on the outer side of the stern end of the hull (1). A connecting shaft (21) is fixed on both sides of the wheel (2). A drive shaft (11) is rotatably mounted on the hull (1) corresponding to the position of the connecting shaft (21). A flange (4) is fixed between the connecting shaft (21) and the drive shaft (11). A lifting assembly (3) is provided on the surface of the hull (1) on both sides of the wheel (2). The lifting assembly (3) includes a hanger (39). The bottom ends of the hanger (39) are rotatably mounted on the hull (1). The wheel (2) is connected on both sides of the wheel (2). A first collar (31) is rotatably sleeved on the surface of the shaft (21), and a connecting plate (32) is fixed on the surface of the first collar (31). A sling (33) is rotatably connected to the top of the connecting plate (32), and the other end of the sling (33) is wound on the hanger (39). Movable frames (310) are provided on both sides of the drive shaft (11), and a horizontal plate (315) is fixed at one end of the movable frame (310). A buckle frame (316) is fixed between the two horizontal plates (315), and the buckle frame (316) is slidably connected to the outer surface of the wheel body (2).

2. The ship's retractable outer wheel structure according to claim 1, characterized in that: The lifting assembly (3) also includes a rotating shaft (37). The bottom of both sides of the hanger (39) is fixed with a rotating shaft (37). The hull (1) is fixed with a drive box (38) at the position corresponding to the rotating shaft (37). The drive box (38) contains a drive motor, and the rotating shaft (37) is fixedly connected to the output end of the drive motor in the drive box (38).

3. The ship's retractable outer wheel structure according to claim 2, characterized in that: A second collar (34) is rotatably sleeved on the surface of the drive shaft (11), and a gear ring (35) is fixed on the surface of the second collar (34). A gear (36) is meshed on the top of the gear ring (35), and the gear (36) is fixedly connected to the rotating shaft (37).

4. The ship's retractable outer wheel structure according to claim 3, characterized in that: A movable plate (313) is also fixed on the outer surface of the second collar (34), and the movable plate (313) slides along the inside of the movable frame (310).

5. The ship's retractable outer wheel structure according to claim 4, characterized in that: The top of the movable frame (310) is provided with a movable groove (317), and a movable block (319) is slidably connected inside the movable groove (317). The movable block (319) is fixedly connected to the movable plate (313).

6. The ship's retractable outer wheel structure according to claim 5, characterized in that: The moving slot (317) is rotatably mounted with a screw (318) through a bearing. The moving block (319) is threaded onto the screw (318). A second motor (314) is fixed on the outside of the moving frame (310) at one end of the screw (318), and the output end of the second motor (314) is fixedly connected to the screw (318).

7. A ship's retractable outer wheel structure according to claim 6, characterized in that: The top of the hanger (39) is symmetrically fixed with two take-up seats (311), the two take-up seats (311) are fixedly connected with the take-up shafts, and the hanging rope (33) is wound on the take-up shaft.

8. A ship's retractable outer wheel structure according to claim 7, characterized in that: The top of the hanger (39) is fixed with a first motor (312) at the position of a take-up seat (311) on one side, and the output end of the first motor (312) is fixedly connected to the take-up shaft of the take-up seat (311).

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