A marine top current generator

Abstract

This invention relates to the field of marine equipment technology and provides a marine jacking machine, comprising a lifting rod, a lifting housing, a steering housing, and a tilting housing. A propeller is connected to the bottom end of the lifting rod. The lifting rod passes sequentially through the steering housing and the lifting housing. An axial mounting groove is provided on the peripheral wall of the lifting rod, and a transmission belt is fixedly connected within the mounting groove. The tilting housing is used to connect to the hull. An electric telescopic rod is installed inside the tilting housing, with its two ends hinged to the tilting housing and the steering housing, respectively. The bottom end of the steering housing, away from the lifting rod, is hinged to the tilting housing. The electric telescopic rod drives the steering housing to tilt relative to the tilting housing. A motor, a clutch mechanism, a first transmission mechanism, and a second transmission mechanism are installed inside the steering housing. The motor and the clutch mechanism are connected in a driving connection. The lifting mechanism is connected to the transmission belt and is used to drive the axial movement of the lifting rod via the transmission belt. The switching operation between lifting and steering functions is simple and reliable.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, and more specifically, to a marine top current generator. Background Technology

[0002] A marine buoy, also known as an electronic anchor, is a power unit installed on the hull to help the vessel maintain a fixed position in currents. Its working principle involves a propeller generating thrust in the opposite direction of the current, counteracting the drifting effect of the current on the hull and thus achieving stable mooring. In recent years, with the popularity of activities such as fishing and recreational yachting, buoys have been widely used. Traditional buoys typically have three basic functions: lifting, steering, and tilting. The lifting function adjusts the depth of the propeller in the water to adapt to different depths or raise it to near the surface; the steering function changes the direction of the propeller's thrust to cope with different current directions; and the tilting function flips the entire propeller out of the water for easy cleaning, maintenance, or to avoid collision damage in case of grounding. In traditional designs, these three functions are often implemented by separate power mechanisms and transmission systems, each occupying independent installation space and assembly interfaces.

[0003] However, this modular design has revealed several shortcomings in practical applications. First, the three independent modules need to be fixed to the hull or mounting bases, which not only occupies a significant amount of space at the stern but also results in a lack of unified planning for the piping (power lines, control lines) and mechanical connections between the modules, leading to a loose overall structure, chaotic wiring, and cumbersome installation and debugging. Second, the modules lack coordination when working independently. For example, pre-adjustment of lifting and steering is required before the tilting action, making the operation complex and difficult to achieve one-button automated control. Furthermore, the dispersed modules increase overall manufacturing costs and maintenance difficulty. Each module requires an independent housing, seals, and mounting brackets, resulting in high material costs and an increased number of potential failure points. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to provide an integrated solution for a top flow machine that highly integrates the three functions of lifting, steering and tilting, so as to solve the technical problems of loose structure, inconvenient installation and difficult coordinated control in traditional technology.

[0005] This invention provides a marine jacking engine, comprising a lifting rod, a lifting housing, a steering housing, and a tilting housing. A thruster is connected to the bottom end of the lifting rod. The lifting rod passes sequentially through the steering housing and the lifting housing. An axial mounting groove is provided on the peripheral wall of the lifting rod, and a transmission belt is fixedly connected within the mounting groove. The tilting housing is used for connection to the hull. An electric telescopic rod is installed within the tilting housing. Both ends of the electric telescopic rod are hinged to the tilting housing and the steering housing, respectively. The bottom end of the steering housing, away from the lifting rod, is hinged to the tilting housing. The electric telescopic rod is used to drive the... The steering housing flips relative to the tilting housing. The steering housing contains a motor, a clutch mechanism, a first transmission mechanism, and a second transmission mechanism. The motor is driven by the engagement end of the clutch mechanism, which is used to switch between the first and second transmission mechanisms. The first transmission mechanism is driven by the lifting rod and drives it to rotate circumferentially. The lifting housing contains a lifting mechanism, and the second transmission mechanism is driven by the lifting mechanism. The lifting mechanism is connected to the transmission belt and drives the lifting rod to move axially via the transmission belt.

[0006] Optionally, the tilting housing has a groove-shaped structure, the fixed end of the electric telescopic rod is hinged between the two groove walls of the tilting housing through a first pin, the steering housing is hinged between the two groove walls of the tilting housing through a second pin, and a connecting rod extends from the hinged end of the steering housing and the tilting housing, and the telescopic rod of the electric telescopic rod is hinged to the connecting rod.

[0007] Optionally, the electric telescopic rod is hinged to the connecting rod via a third pin, and the telescopic rod of the electric telescopic rod has an elongated hole, with the third pin slidably connected to the elongated hole.

[0008] Optionally, the clutch mechanism includes an electromagnetic actuator, a push-pull rod, and a transmission pin. The output shaft of the motor is a hollow shaft structure. The push-pull rod passes through the output shaft of the motor. The transmission pin is connected to the lower end of the push-pull rod. The output shaft of the motor is driven to connect with the transmission pin. The electromagnetic actuator is connected to the steering housing and is driven to connect with the push-pull rod, used to drive the push-pull rod to move up and down, so as to drive the transmission pin to connect with the first transmission mechanism or the second transmission mechanism.

[0009] Optionally, the clutch mechanism further includes a support rod vertically disposed within the steering housing and a lever hinged to the support rod at the middle, wherein the two ends of the lever are respectively hinged to the drive end of the electromagnetic actuator and the push-pull rod.

[0010] Optionally, the output shaft of the motor has two oblong holes symmetrically formed along the axial direction on its peripheral wall. The transmission pin is arranged laterally and its two ends are slidably connected to the two oblong holes respectively. The lower end of the push-pull rod is connected to the middle of the transmission pin.

[0011] Optionally, the first transmission mechanism includes a first gear and a first gear disc meshing with each other, and the second transmission mechanism includes a second gear and a second gear disc meshing with each other. The first gear and the second gear are rotatably connected to the output shaft of the motor, and the opposite end faces of the first gear and the second gear are respectively provided with slots. The transmission pin is used to switch between the two slots. The lifting rod is sleeved with a first sleeve, and the first gear disc is fixedly sleeved on the outer wall of the first sleeve. The first sleeve slides axially with the lifting rod and is circumferentially limited. The upper end of the first sleeve is rotatably sleeved with a second sleeve, and the second gear disc is fixedly sleeved on the lower outer wall of the second sleeve. The upper end of the second sleeve passes through the lifting housing and is tractively connected to the lifting mechanism to drive the lifting mechanism to move.

[0012] Optionally, a third gear disc is fixedly sleeved on the upper end of the second sleeve. The lifting mechanism includes a worm and a turbine rotatably connected and meshing with each other within the lifting housing. A third gear is coaxially arranged at the end of the worm, and the third gear meshes with the third gear disc. A pulley is coaxially arranged on the turbine, and the pulley is connected to the transmission belt.

[0013] Optionally, the transmission belt is an inner toothed belt, and the two ends of the transmission belt are fixedly connected to the upper and lower ends of the lifting rod, respectively. The pulley is a toothed pulley adapted to the transmission belt, and the transmission belt is wound around and meshed with the pulley.

[0014] Optionally, a third sleeve is provided inside the lifting housing. The third sleeve is axially sliding and circumferentially limited to the lifting rod. A mounting plate extends radially from the upper end of the third sleeve, and a mounting bracket extends downward from the mounting plate. The worm gear and the turbine are rotatably connected to the mounting bracket.

[0015] Compared with related technologies, the marine jacking machine provided by the present invention has the following technical advantages: The marine jacking machine provided by this invention connects to the hull via a tilting shell. The bottom end of the steering shell, away from the lifting rod, is hinged to the tilting shell. An electric telescopic rod is installed inside the tilting shell, with both ends hinged to the tilting shell and the steering shell respectively. The extension and retraction of the electric telescopic rod drives the steering shell to tilt relative to the tilting shell, thereby synchronously tilting the lifting rod and its bottom thruster, which are installed in the steering shell and the lifting shell, achieving the tilting function. A motor with a clutch mechanism is installed inside the steering shell. The motor switches between a first transmission mechanism and a second transmission mechanism via the clutch mechanism's engagement end. When the clutch mechanism engages the first transmission mechanism, the motor drives the first transmission mechanism to rotate the lifting rod circumferentially, achieving the steering function. When the clutch mechanism switches to engage the second transmission mechanism, the motor drives the second transmission mechanism, which then connects to the lifting mechanism inside the lifting shell. The lifting mechanism drives the transmission belt fixedly connected in the lifting rod mounting groove, thereby driving the lifting rod to move axially, achieving the lifting function. The above technical solution uses a single motor in conjunction with a clutch mechanism to achieve switching between lifting and steering functions. While ensuring that the top flow machine has three functions of lifting, steering and tilting, it reduces one drive motor compared to the traditional solution where lifting and steering are driven by separate motors. This effectively reduces the overall manufacturing cost, simplifies the electrical control system and wiring structure, and the clutch mechanism has a clear switching control logic and a rapid response, making the switching operation between lifting and steering functions simple and reliable. In addition, the structure is compact and easy to install and adjust. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a marine top-flow generator according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the marine top-flow generator before it is overturned, according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the marine top-flow generator after it has been flipped according to an embodiment of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the marine jacking flow generator according to an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the marine jacking flow generator according to an embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of the clutch mechanism according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a portion of the internal structure of the lifting housing in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 10-Lifting rod, 11-Transmission belt, 20-Lifting housing, 21-Third gear, 22-Worm gear, 23-Turbine, 24-Third gear, 25-Pulley, 26-Third sleeve, 27-Mounting plate, 28-Mounting bracket, 30-Steering housing, 31-Motor, 311-Output shaft, 321-Electromagnetic actuator, 322-Push-pull rod, 323-Transmission pin, 324-Support rod, 325-Lever, 33-First gear, 34-First gear, 35-Second gear, 36-Second gear, 37-First sleeve, 38-Second sleeve, 40-Tilt-off housing, 41-Electric telescopic rod, 42-First pin, 43-Second pin, 44-Third pin, 50-Thruster, 60-Connecting rod. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0020] In the description of this invention, the orientations or positional relationships indicated by terms such as "up," "down," "left," "right," "top," "bottom," "front," "back," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this invention. They are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0023] like Figures 1 to 4 As shown, this embodiment of the invention provides a marine jacking machine, including a lifting rod 10, a lifting housing 20, a steering housing 30, and a tilting housing 40. A thruster 50 is connected to the bottom end of the lifting rod 10. The lifting rod 10 passes sequentially through the steering housing 30 and the lifting housing 20. An axial mounting groove is provided on the peripheral wall of the lifting rod 10, and a transmission belt 11 is fixedly connected within the mounting groove. The tilting housing 40 is used to connect to the hull. An electric telescopic rod 41 is provided inside the tilting housing 40. Both ends of the electric telescopic rod 41 are hinged to the tilting housing 40 and the steering housing 30, respectively. The bottom end of the steering housing 30, away from the lifting rod 10, is hinged to the tilting housing 40. The electric telescopic rod 41 is used to drive the steering housing 30 to flip relative to the tilting housing 40. The steering housing 30 is provided with a motor 31, a clutch mechanism, a first transmission mechanism and a second transmission mechanism. The motor 31 is driven to connect with the engagement end of the clutch mechanism. The engagement end of the clutch mechanism is used to switch the connection between the first transmission mechanism and the second transmission mechanism. The first transmission mechanism is driven to connect with the lifting rod 10 and is used to drive the lifting rod 10 to rotate circumferentially. The lifting housing 20 is provided with a lifting mechanism. The second transmission mechanism is driven to connect with the lifting mechanism. The lifting mechanism is connected to the transmission belt 11 and is used to drive the lifting rod 10 to move axially through the transmission belt 11.

[0024] It should be noted that in this embodiment, the tilting housing 40 serves as the fixed base for the entire jacking machine, and is bolted to a mounting base at the stern or side of the hull. The steering housing 30 is positioned above the tilting housing 40. The bottom end of the steering housing 30, away from the lifting rod 10, is hinged to the tilting housing 40 via a second pin 43, allowing the steering housing 30 to rotate relative to the tilting housing 40 around this hinge point in a vertical plane. The lifting housing 20 is fixedly connected above the steering housing 30; when the steering housing 30 rotates, the lifting housing 20 rotates synchronously with it. The lifting rod 10 passes vertically through the lifting housing 20 and the steering housing 30, with its bottom end extending out of the steering housing 30 and fixedly connected to the thruster 50. The motor 31 is a drive motor fixedly installed inside the steering housing 30, which selectively transmits power to either the first or second transmission mechanism via a clutch mechanism. When it is necessary to adjust the thrust direction of the thruster 50, the clutch mechanism engages the power of the motor 31 with the first transmission mechanism, driving the lifting rod 10 to rotate circumferentially; when it is necessary to adjust the immersion depth of the thruster 50, the clutch mechanism switches to engaging the power of the motor 31 with the second transmission mechanism, driving the lifting rod 10 to move axially via the lifting mechanism. Both functions are driven by the same motor 31 at different times, achieving a shared power source.

[0025] Specifically, the tilting housing 40 is a slotted structure with one open end, forming a receiving cavity between its two slot walls, in which the electric telescopic rod 41 is housed. The steering housing 30 is a box-shaped structure, with its bottom extending between the two slot walls of the tilting housing 40 and hinged to the two slot walls via a second pin 43, located on the side of the bottom of the steering housing 30 away from the lifting rod 10. The lifting housing 20 is a box-shaped structure, fixedly installed above the steering housing 30, and houses the lifting mechanism inside. Through holes for the lifting rod 10 are respectively opened on the upper and lower end plates of the lifting housing 20. The lifting rod 10 is a hollow cylindrical structure with an axially oriented mounting groove on its outer wall. The transmission belt 11 is embedded in the mounting groove and fixed by a pressure plate. The lifting rod 10 passes sequentially through the lifting housing 20 and the steering housing 30, with its bottom end extending out of the steering housing 30 and fixedly connected to the pusher 50. The motor 31 is fixedly installed inside the steering housing 30, and its output shaft 311 is a hollow shaft structure. The clutch mechanism is located on the output shaft 311 of the motor 31. The first transmission mechanism and the second transmission mechanism are respectively arranged at different axial positions on the output shaft 311 of the motor 31. The clutch mechanism achieves engagement and switching with the first transmission mechanism or the second transmission mechanism through axial movement. The lifting mechanism inside the lifting housing 20 transmits power to the second transmission mechanism through a transmission shaft or gear pair. The output end of the lifting mechanism is connected to the transmission belt 11.

[0026] In this embodiment, the tilting shell 40 is fixed to the hull as a supporting base, the steering shell 30 is hinged to the tilting shell 40 to give it the freedom to tilt, the lifting shell 20 is fixed above the steering shell 30, and the lifting rod 10 is sequentially inserted through the steering shell 30 and the lifting shell 20, and the thruster 50 is connected to the bottom end of the lifting rod 10; at the same time, an electric telescopic rod 41 is set in the tilting shell 40 to drive the steering shell 30 to tilt and achieve the tilting function, and a motor 31 is set in the steering shell 30 to selectively drive the first transmission mechanism or the second transmission mechanism in conjunction with the clutch mechanism. When the clutch mechanism engages the first transmission mechanism, it drives the lifting rod 10 to rotate circumferentially to achieve the steering function. When the clutch mechanism switches to engage the second transmission mechanism, it drives the lifting rod 10 to move axially through the lifting mechanism to achieve the lifting function. The above technical solution achieves the switching drive of lifting and steering functions through a single motor and clutch mechanism. Compared with the traditional solution where lifting and steering are driven by separate motors, it reduces one drive motor, lowers the overall manufacturing cost, and simplifies the electrical control system. At the same time, the three functions are compactly arranged in structure and do not interfere with each other, which significantly improves the ease of use and functional completeness of the top flow machine.

[0027] Optionally, such as Figures 1 to 3 As shown, the tilting housing 40 has a groove-shaped structure. The fixed end of the electric telescopic rod 41 is hinged between the two groove walls of the tilting housing 40 through the first pin 42. The steering housing 30 is hinged between the two groove walls of the tilting housing 40 through the second pin 43. A connecting rod 60 extends from the hinged end of the steering housing 30 and the tilting housing 40. The telescopic rod of the electric telescopic rod 41 is hinged to the connecting rod 60.

[0028] Specifically, the tilting housing 40 has a U-shaped or C-shaped cross-section, consisting of a base plate and two opposing groove walls arranged parallel and spaced apart, forming an accommodating space. The fixed end of the electric telescopic rod 41 (i.e., the cylinder or housing end of the electric telescopic rod 41) is hinged between the two groove walls of the tilting housing 40 via a first pin 42. Both ends of the first pin 42 are respectively inserted and fixed to the two groove walls, allowing the fixed end of the electric telescopic rod 41 to swing around the first pin 42 within a certain angle range. The bottom of the steering housing 30 is hinged between the two groove walls of the tilting housing 40 via a second pin 43. The second pin 43 is located at the end of the bottom of the steering housing 30 away from the lifting rod 10, allowing the steering housing 30 to rotate relative to the tilting housing 40 around the second pin 43. A connecting rod 60 extends outward from the hinge end of the steering housing 30 and the tilting housing 40 (i.e., the end of the bottom of the steering housing 30 away from the lifting rod 10). The connecting rod 60 is fixedly connected to the steering housing 30 or integrally formed, and extends from the bottom of the steering housing 30 into the receiving cavity of the tilting housing 40. The telescopic rod end of the electric telescopic rod 41 is hinged to the end of the connecting rod 60. When the telescopic rod of the electric telescopic rod 41 extends or retracts, it pushes or pulls the steering housing 30 around the second pin 43 through the connecting rod 60. The connecting rod 60 extends the lever arm of the driving force of the electric telescopic rod 41, improving the output efficiency of the tilting torque.

[0029] In this embodiment, by setting the tilting housing 40 as a groove-shaped structure, the fixed end of the electric telescopic rod 41 is hinged between the two groove walls of the tilting housing 40 via a first pin 42, and the steering housing 30 is hinged between the two groove walls of the tilting housing 40 via a second pin 43. A connecting rod 60 extends from the hinged end of the steering housing 30, so that the telescopic rod of the electric telescopic rod 41 is hinged to the connecting rod 60, forming a highly efficient tilting drive mechanism. The telescopic movement of the electric telescopic rod 41 is transmitted to the steering housing 30 through the connecting rod 60. The extension of the connecting rod 60 increases the driving arm, enabling the electric telescopic rod 41 to generate a large tilting torque with a small driving force, thereby reliably driving the steering housing 30 and the lifting housing 20, lifting rod 10, and thruster 50 above it to complete the tilting action. At the same time, all hinge points are located between the two groove walls of the tilting housing 40, resulting in a compact overall structure and balanced force distribution.

[0030] Optionally, such as Figures 1 to 3 As shown, the electric telescopic rod 41 is hinged to the connecting rod 60 via a third pin 44, and the telescopic rod of the electric telescopic rod 41 has an elongated hole 411, with the third pin 44 slidably connected to the elongated hole 411.

[0031] Specifically, the end of the telescopic rod (i.e., the movable part of the electric telescopic rod 41) of the electric telescopic rod 41 has an elongated hole 411 that extends along the length of the telescopic rod, i.e., along the telescopic direction of the electric telescopic rod 41. A third pin 44 passes through the elongated hole 411 and can slide freely within the elongated hole 411 along the length of the telescopic rod. A pin hole is provided at the end of the connecting rod 60. The third pin 44 passes through both the elongated hole 411 and the pin hole at the end of the connecting rod 60, hinged to the telescopic rod of the electric telescopic rod 41 and the connecting rod 60. When the telescopic rod of the electric telescopic rod 41 extends or retracts, the third pin 44 slides within the elongated hole 411 to compensate for the displacement deviation caused by the different motion trajectories between the electric telescopic rod 41 and the connecting rod 60 during the telescopic process. The elongated hole 411 allows for a certain amount of floating margin in the hinge between the electric telescopic rod 41 and the connecting rod 60, avoiding jamming or interference caused by mismatch in their movement trajectories and ensuring the smoothness of the tilting action.

[0032] In this embodiment, by opening an elongated hole 411 on the telescopic rod of the electric telescopic rod 41 and slidingly connecting the third pin 44 in the elongated hole 411, a floating compensation space is provided for the hinge between the telescopic rod of the electric telescopic rod 41 and the connecting rod 60. During the rotation of the steering housing 30 around the second pin 43, the movement trajectory of the end of the connecting rod 60 is arc-shaped, while the telescopic rod of the electric telescopic rod 41 extends and retracts in a straight line. The elongated hole 411 allows the third pin 44 to slide on the telescopic rod to compensate for the displacement difference between the two movement trajectories, thereby avoiding motion interference and ensuring that the electric telescopic rod 41 can smoothly drive the connecting rod 60 to drive the steering housing 30 to complete the tilting action, thus improving the motion reliability and service life of the tilting mechanism.

[0033] Optionally, such as Figures 4 to 6 As shown, the clutch mechanism includes an electromagnetic actuator 321, a push-pull rod 322, and a transmission pin 323. The output shaft 311 of the motor 31 is a hollow shaft structure. The push-pull rod 322 passes through the output shaft 311 of the motor 31. The transmission pin 323 is connected to the lower end of the push-pull rod 322. The output shaft 311 of the motor 31 is drivenly connected to the transmission pin 323. The electromagnetic actuator 321 is connected to the steering housing 30. The electromagnetic actuator 321 is drivenly connected to the push-pull rod 322 and is used to drive the push-pull rod 322 to move up and down, so as to drive the transmission pin 323 to connect with the first transmission mechanism or the second transmission mechanism.

[0034] Specifically, the output shaft 311 of the motor 31 is a hollow shaft structure, meaning that a through-hole is formed along its axis. A push-pull rod 322 passes through the through-hole of the output shaft 311 and can slide freely axially within it. A transmission pin 323 is fixedly connected to the lower end of the push-pull rod 322. The transmission pin 323 is arranged laterally, with its axis perpendicular to the axis of the push-pull rod 322. The output shaft 311 of the motor 31 forms a driving connection with the transmission pin 323 through a transmission structure. Two axially extending oblong holes are symmetrically formed on the outer peripheral wall of the output shaft 311. Both ends of the transmission pin 323 pass through the two oblong holes and extend out of the output shaft 311. When the output shaft 311 rotates, the walls of the oblong holes push the transmission pin 323 to rotate synchronously, thereby achieving torque transmission between the output shaft 311 and the transmission pin 323. The electromagnetic actuator 321 is fixedly installed inside the steering housing 30. The electromagnetic actuator 321 is driven by the upper end of the push-pull rod 322. When the electromagnetic actuator 321 is energized, it drives the push-pull rod 322 to move axially up and down, which in turn drives the transmission pin 323 to move synchronously up and down. When the transmission pin 323 moves to the position engaging with the first transmission mechanism, the power of the motor 31 is transmitted to the first transmission mechanism via the output shaft 311 and the transmission pin 323. When the transmission pin 323 moves to the position engaging with the second transmission mechanism, the power of the motor 31 is transmitted to the second transmission mechanism via the output shaft 311 and the transmission pin 323. By controlling the axial position of the push-pull rod 322 through the electromagnetic actuator 321, the selective switching of the power output target of the motor 31 can be achieved.

[0035] In this embodiment, by setting the output shaft 311 of the motor 31 as a hollow shaft structure, the push-pull rod 322 is inserted into the output shaft 311, and the transmission pin 323 is connected to the lower end of the push-pull rod 322 and forms a driving connection with the output shaft 311. Simultaneously, the electromagnetic actuator 321 drives the push-pull rod 322 to move up and down, causing the transmission pin 323 to selectively connect with either the first or second transmission mechanism, thus realizing the switching control of a single motor 31 driving two different transmission mechanisms. The electromagnetic actuator 321 has a fast response speed and high control precision, and can complete the position switching of the transmission pin 323 in a short time, thereby realizing the rapid switching between lifting and steering functions and improving the working efficiency of the top flow machine. At the same time, the coaxial layout of the push-pull rod 322 inserted into the hollow output shaft 311 makes the clutch mechanism structure compact and does not occupy additional radial space of the steering housing 30.

[0036] Optionally, such as Figures 4 to 6 As shown, the clutch mechanism also includes a support rod 324 vertically disposed in the steering housing 30 and a lever 325 hinged to the support rod 324 in the middle. The two ends of the lever 325 are respectively hinged to the driving end of the electromagnetic actuator 321 and the push-pull rod 322.

[0037] Specifically, the support rod 324 is vertically fixed in the internal cavity of the steering housing 30. The lower end of the support rod 324 is fixed to the bottom plate or side wall of the steering housing 30, and the upper end of the support rod 324 is a free end. The lever 325 is a rod-shaped component, the middle of which is hinged to the upper end of the support rod 324 through a hinge axis. The lever 325 can swing around the hinge axis in the vertical plane. One end (first end) of the lever 325 is hinged to the driving end of the electromagnetic actuator 321, and the other end (second end) of the lever 325 is hinged to the upper end of the push-pull rod 322. When the driving end of the electromagnetic actuator 321 moves up and down, the lever 325 swings around the hinge axis in its middle through the lever action, reversing the direction of movement of the driving end of the electromagnetic actuator 321 and transmitting it to the push-pull rod 322. That is, when the driving end of the electromagnetic actuator 321 moves downward, the push-pull rod 322 moves upward, and vice versa. The lever 325 enables the amplification of the drive stroke and direction conversion of the electromagnetic actuator 321, making the installation position of the electromagnetic actuator 321 more flexible and avoiding the limitation that the electromagnetic actuator 321 and the push-pull rod 322 must be arranged coaxially.

[0038] In this embodiment, a support rod 324 and a lever 325 hinged to the support rod 324 are provided. The two ends of the lever 325 are respectively hinged to the driving end of the electromagnetic actuator 321 and the push-pull rod 322. The driving force of the electromagnetic actuator 321 is transmitted to the push-pull rod 322 using the lever principle. The lever 325 can not only change the direction of force transmission, so that the electromagnetic actuator 321 does not need to be arranged coaxially with the push-pull rod 322, reducing the layout difficulty of the internal space of the steering housing 30, but also can amplify or reduce the driving stroke of the electromagnetic actuator 321 according to the proportional relationship of the lever arms at both ends of the lever 325, improving the flexibility and adaptability of the clutch mechanism design.

[0039] Optionally, such as Figures 4 to 6 As shown, the output shaft 311 of the motor 31 has two oblong holes symmetrically opened along the axial direction on its peripheral wall. The transmission pin 323 is arranged laterally and its two ends are slidably connected to the two oblong holes respectively. The lower end of the push-pull rod 322 is connected to the middle part of the transmission pin 323.

[0040] Specifically, two oblong holes are formed on the outer peripheral wall of the output shaft 311 of the motor 31. The two oblong holes are symmetrically arranged circumferentially along the output shaft 311, that is, the two oblong holes are symmetrically arranged on opposite radial sides of the output shaft 311. Each oblong hole is an elongated through hole extending axially along the output shaft 311, and its length direction is parallel to the axial direction of the output shaft 311. The length of the oblong hole is greater than the maximum stroke of the transmission pin 323 when it moves axially. The transmission pin 323 is rotatably connected to the lower end of the push-pull rod 322, and both ends of the transmission pin 323 extend out of the output shaft 311 from the two oblong holes. The transmission pin 323 can slide freely along the axial direction of the output shaft 311 within the oblong holes, but when the output shaft 311 rotates, the hole wall of the oblong hole (i.e., the two circumferential edges of the oblong hole) contacts the transmission pin 323 and pushes the transmission pin 323 to rotate synchronously with the output shaft 311. The lower end of the push-pull rod 322 is rotatably connected to the middle part of the transmission pin 323 (i.e., the part of the transmission pin 323 located inside the output shaft 311). That is, when the transmission pin 323 rotates with the output shaft 311 of the motor 31, the transmission pin 323 is rotatably connected to the lower end of the push-pull rod 322, so that the push-pull rod 322 does not rotate with it. After the transmission pin 323 extends out of the oblong hole, it can engage with the slots on the first gear 33 or the second gear 35 respectively, realizing the switching output of power to different transmission mechanisms.

[0041] In this embodiment, two oblong holes are symmetrically formed on the peripheral wall of the output shaft 311 of the motor 31. The transmission pin 323 is laterally positioned and its two ends are slidably connected to the two oblong holes respectively. At the same time, the lower end of the push-pull rod 322 is connected to the middle of the transmission pin 323, realizing a combined axial sliding and circumferential driving connection between the output shaft 311 and the transmission pin 323. The oblong holes provide a guide channel for the axial sliding of the transmission pin 323, allowing the transmission pin 323 to move axially along the output shaft 311 under the drive of the push-pull rod 322 to switch to different transmission mechanisms. Simultaneously, the circumferential sidewall of the oblong holes can push the transmission pin 323 to rotate synchronously when the output shaft 311 rotates, realizing torque transmission. This structure is simple and reliable, transmits large torque, and the transmission pin 323 slides smoothly in the oblong holes with low switching resistance.

[0042] Optionally, such as Figures 4 to 6As shown, the first transmission mechanism includes a first gear 33 and a first gear disk 34 meshing with each other, and the second transmission mechanism includes a second gear 35 and a second gear disk 36 meshing with each other. The first gear 33 and the second gear 35 are rotatably connected to the output shaft 311 of the motor 31, and the opposite end faces of the first gear 33 and the second gear 35 are respectively provided with slots. The transmission pin 323 is used to switch between the two slots. The lifting rod 10 is sleeved with a first sleeve 37. The first gear disk 34 is fixedly sleeved on the outer wall of the first sleeve 37. The first sleeve 37 slides axially with the lifting rod 10 and is circumferentially limited. The upper end of the first sleeve 37 is rotatably sleeved with a second sleeve 38. The second gear disk 36 is fixedly sleeved on the lower outer wall of the second sleeve 38. The upper end of the second sleeve 38 passes through the lifting housing 20 and is connected to the lifting mechanism for driving the lifting mechanism to move.

[0043] Specifically, the first gear 33 and the first gear disk 34 mesh with each other to form a first transmission mechanism, wherein the first gear 33 is the driving member and the first gear disk 34 is the driven member. The first gear 33 and the second gear 35 are respectively rotatably connected to the output shaft 311 of the motor 31 through bearings, that is, both the first gear 33 and the second gear 35 can rotate freely relative to the output shaft 311 and will not rotate automatically with the rotation of the output shaft 311. The first gear 33 and the second gear 35 are arranged adjacent to each other along the axial direction of the output shaft 311, and their opposite end faces (i.e., the end face of the first gear 33 facing the second gear 35 and the end face of the second gear 35 facing the first gear 33) are respectively provided with slots for engaging with the end of the transmission pin 323. When the transmission pin 323 moves under the drive of the push-pull rod 322 to engage with the slot of the first gear 33, the rotation of the output shaft 311 is transmitted to the first gear 33 through the transmission pin 323, driving the first gear 33 to rotate. When the transmission pin 323 moves to engage with the slot of the second gear 35, the rotation of the output shaft 311 is transmitted to the second gear 35 through the transmission pin 323, driving the second gear 35 to rotate. The first gear 33 meshes with the first gear disk 34, and when the first gear 33 rotates, it drives the first gear disk 34 to rotate. The second gear 35 meshes with the second gear disk 36, and when the second gear 35 rotates, it drives the second gear disk 36 to rotate. The first sleeve 37 is sleeved on the outside of the lifting rod 10. The first sleeve 37 and the lifting rod 10 achieve axial sliding and circumferential limiting connection through the cooperation of the rib and the sliding groove. The first sleeve 37 can slide axially relative to the lifting rod 10, but when the first sleeve 37 rotates, it can drive the lifting rod 10 to rotate synchronously in the circumferential direction. The first gear disc 34 is fixedly sleeved on the outer wall of the first sleeve 37, and the first gear disc 34 rotates synchronously with the first sleeve 37. The upper end of the first sleeve 37 is rotatably sleeved with a second sleeve 38 through a bearing, and the first sleeve 37 and the second sleeve 38 can rotate freely relative to each other. The second gear disc 36 is fixedly sleeved on the lower outer wall of the second sleeve 38, and the second gear disc 36 rotates synchronously with the second sleeve 38. The upper end of the second sleeve 38 passes through the lifting housing 20 and is connected to the lifting mechanism for transmission. When the first transmission mechanism is working, the power of the motor 31 is transmitted to the lifting rod 10 through the first gear 33, the first gear disc 34, and the first sleeve 37, driving the lifting rod 10 to rotate circumferentially to achieve steering; when the second transmission mechanism is working, the power of the motor 31 is transmitted to the lifting mechanism through the second gear 35, the second gear disc 36, and the second sleeve 38, and the lifting mechanism drives the lifting rod 10 to move axially to achieve lifting. The first sleeve 37 and the second sleeve 38 can rotate relative to each other, so that the steering transmission path and the lifting transmission path are independent of each other and do not interfere with each other at the sleeve.

[0044] In this embodiment, a first transmission mechanism is formed by a first gear 33 and a first gear disk 34, and a second transmission mechanism is formed by a second gear 35 and a second gear disk 36. The first gear 33 and the second gear 35 are rotatably connected to the output shaft 311 of the motor 31, and slots are formed on their opposite end faces. The transmission pin 323 switches between the two slots, realizing the switching control of the power output direction of a single motor 31. The lifting rod 10 is sleeved on the first sleeve 37, and the first gear disk 34 is fixed to the outer wall of the first sleeve 37. The first sleeve 37 and the lifting rod 10 slide axially and are circumferentially limited, realizing the transmission of steering power. The upper end of the first sleeve 37 is rotatably sleeved on the second sleeve 38, and the second gear disk 36 is fixed to the lower outer wall of the second sleeve 38. The upper end of the second sleeve 38 passes through the lifting housing 20 and is connected to the lifting mechanism, realizing the transmission of lifting power. The rotating connection between the first sleeve 37 and the second sleeve 38 ensures that the steering transmission and the lifting transmission are mechanically independent and do not interfere with each other, guaranteeing the smoothness and reliability when switching between the two functions.

[0045] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, a third gear disc 21 is fixedly sleeved on the upper end of the second sleeve 38. The lifting mechanism includes a worm gear 22 and a turbine gear 23 that are rotatably connected to and mesh with each other within the lifting housing 20. A third gear 24 is coaxially arranged at the end of the worm gear 22. The third gear 24 meshes with the third gear disc 21. A pulley 25 is coaxially arranged on the turbine gear 23. The pulley 25 is connected to the transmission belt 11.

[0046] Specifically, the upper end of the second sleeve 38 extends out of the steering housing 30 and penetrates into the interior of the lifting housing 20. A third gear disc 21 is fixedly sleeved on the upper outer wall of the second sleeve 38, and the third gear disc 21 rotates synchronously with the second sleeve 38. A worm gear 22 and a turbine gear 23 are arranged inside the lifting housing 20, meshing with each other to form a worm gear transmission mechanism. A third gear 24 is coaxially fixedly mounted on one end of the worm gear 22, and rotates synchronously with the worm gear 22. The third gear 24 meshes with the third gear disc 21. When the second sleeve 38 rotates, the third gear disc 21 drives the third gear 24 to rotate, which in turn drives the worm gear 22 to rotate synchronously, and the worm gear 22 drives the turbine gear 23 to rotate. A pulley 25 is coaxially fixedly mounted on the turbine gear 23, and rotates synchronously with the turbine gear 23. The outer circumferential surface of the pulley 25 is provided with a transmission structure for engaging with the transmission belt 11. The transmission belt 11 is wound around the pulley 25 and forms a transmission engagement with the pulley 25. When the second transmission mechanism is working, the power of the motor 31 is transmitted to the pulley 25 via the second gear 35, the second gear disc 36, the second sleeve 38, the third gear disc 21, the third gear 24, the worm gear 22, and the worm 23. The pulley 25 drives the transmission belt 11 to move, thereby driving the lifting rod 10 to move up and down axially. The worm gear transmission mechanism has a large reduction ratio and reverse self-locking characteristics, which can convert the high-speed rotation of the second sleeve 38 into the low-speed, high-torque rotation of the pulley 25, ensuring the smoothness of the lifting action and the load holding capacity.

[0047] In this embodiment, a third gear disc 21 is fixedly sleeved onto the upper end of the second sleeve 38. A worm gear 22 and a turbine 23 mesh with each other within the lifting housing 20. A third gear 24 is coaxially mounted at the end of the worm gear 22, meshing with the third gear disc 21. A pulley 25 is coaxially mounted on the turbine 23, connecting to the transmission belt 11, thus forming a complete lifting transmission path from the second sleeve 38 to the lifting rod 10. The worm gear transmission of the worm gear 22 and the turbine 23 has a large reduction ratio, which can convert the high speed of the motor 31 into a low speed and high torque output suitable for lifting actions, ensuring the smoothness and sufficient driving force of the propeller 50 during lifting. Simultaneously, the worm gear transmission has a reverse self-locking characteristic; even if the motor 31 is de-energized after lifting, the lifting rod 10 will not slide down under gravity, ensuring safety and eliminating the need for an additional braking device.

[0048] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, the transmission belt 11 is an inner toothed belt, and the two ends of the transmission belt 11 are fixedly connected to the upper and lower ends of the lifting rod 10, respectively. The pulley 25 is a toothed pulley adapted to the transmission belt 11, and the transmission belt 11 is wound around and meshed with the pulley 25.

[0049] Specifically, the transmission belt 11 is an inner toothed belt (i.e., a synchronous belt), with a plurality of transmission teeth evenly spaced on its inner circumferential surface. The transmission belt 11 is arranged axially within the mounting groove of the lifting rod 10. The upper end of the transmission belt 11 is fixedly connected to the upper end of the lifting rod 10 via an upper pressure plate and fastening bolts, and the lower end of the transmission belt 11 is fixedly connected to the lower end of the lifting rod 10 via a lower pressure plate and fastening bolts, thus forming a single unit with the lifting rod 10. The pulley 25 is a toothed pulley (i.e., a synchronous pulley) adapted to the transmission belt 11, with a plurality of pulley tooth grooves evenly spaced on its outer circumferential surface that mesh with the transmission teeth of the transmission belt 11. The transmission belt 11 is wound around the outer circumferential surface of the pulley 25, and the transmission teeth of the transmission belt 11 mesh with the tooth grooves of the pulley 25. When pulley 25 rotates, the grooves of pulley 25 push the transmission teeth of transmission belt 11, causing transmission belt 11 to move along its length. Transmission belt 11 drives lifting rod 10 to rise and fall synchronously. Compared with friction transmission, meshing transmission has the advantages of no slippage, precise transmission ratio, and accurate positioning, ensuring the accuracy of the lifting position and repeatability of lifting rod 10.

[0050] In this embodiment, by setting the transmission belt 11 as an inner toothed belt and the pulley 25 as a toothed pulley adapted to the transmission belt 11, and by having the transmission belt 11 wrapped around the pulley 25 to form a meshing connection, precise synchronous transmission is achieved. Compared with ordinary flat belt friction transmission, the meshing transmission of the toothed belt and the toothed pulley eliminates relative slippage, ensuring precise control of the lifting position of the lifting rod 10. At the same time, both ends of the transmission belt 11 are fixedly connected to the upper and lower ends of the lifting rod 10, respectively, so that the transmission belt 11 can drive the lifting rod 10 to rise and fall in a push-pull manner under the drive of the pulley 25. Whether the lifting rod 10 rises or falls, it can obtain effective driving force, avoiding the slippage failure problem that may occur when relying solely on friction drive, and improving the reliability and response speed of the lifting action.

[0051] Optionally, such as Figure 4 , Figure 5 and Figure 7 As shown, a third sleeve 26 is provided inside the lifting housing 20. The third sleeve 26 is axially sliding and circumferentially limited to the lifting rod 10. A mounting plate 27 extends radially from the upper end of the third sleeve 26. A mounting bracket 28 extends downward from the mounting plate 27. The worm gear 22 and the turbine 23 are rotatably connected to the mounting bracket 28.

[0052] Specifically, a third sleeve 26 is provided inside the lifting housing 20. The third sleeve 26 is fitted onto the outside of the lifting rod 10. The third sleeve 26 and the lifting rod 10 are axially sliding and circumferentially limited connected through the cooperation of the rib and the sliding groove. The third sleeve 26 can slide freely axially relative to the lifting rod 10, but when the lifting rod 10 rotates, it can drive the third sleeve 26 to rotate synchronously circumferentially. A mounting plate 27 is provided radially outward at the upper end of the third sleeve 26. The mounting plate 27 is an annular plate structure and is fixedly connected to the third sleeve 26 or integrally formed. A mounting frame 28 is provided downwardly extending from the mounting plate 27. The mounting frame 28 is a frame or bracket structure that extends downward from the edge or lower surface of the mounting plate 27. The worm gear 22 and the turbine gear 23 are rotatably connected to the mounting frame 28. That is, the worm gear 22 and the turbine gear 23 are mounted on the mounting frame 28 through bearings and can rotate freely relative to the mounting frame 28. When the lifting rod 10 rotates circumferentially around its own axis under the drive of the first transmission mechanism inside the steering housing 30, the lifting rod 10 drives the third sleeve 26 to rotate synchronously through the cooperation of the rib and the slide groove. The third sleeve 26 drives the mounting plate 27, the mounting bracket 28 and the worm gear 22, the turbine 23, the third gear 24, the pulley 25 and other components mounted on it to rotate synchronously with the lifting rod 10, so that the relative circumferential position of the lifting mechanism inside the lifting housing 20 and the lifting rod 10 remains unchanged, ensuring that the lifting function is not disturbed by the steering action.

[0053] In this embodiment, a third sleeve 26 is provided within the lifting housing 20, which slides axially and is circumferentially limited to the lifting rod 10. A mounting plate 27 is provided at the upper end of the third sleeve 26, and a mounting bracket 28 extends downward from the mounting plate 27. The worm gear 22 and the turbine gear 23 are rotatably connected to the mounting bracket 28, thus achieving synchronous rotation of the lifting mechanism within the lifting housing 20 with the lifting rod 10. When the lifting rod 10 rotates in a turning direction, the lifting mechanism (worm gear 22, turbine gear 23, third gear 24, and pulley 25) within the lifting housing 20 rotates synchronously with the lifting rod 10, ensuring that the relative circumferential position between the lifting mechanism and the lifting rod 10 remains constant. This ensures that the matching accuracy between the transmission belt 11 and the pulley 25 is not affected by the turning action. This design cleverly solves the motion coupling problem between the lifting function and the turning function, allowing the two functions driven by a single motor through a clutch mechanism to work independently without interference.

[0054] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A marine jacking flow generator, characterized in that, The system includes a lifting rod (10), a lifting housing (20), a steering housing (30), and a tilting housing (40). The bottom end of the lifting rod (10) is connected to a thruster (50). The lifting rod (10) passes sequentially through the steering housing (30) and the lifting housing (20). An axial mounting groove is provided on the peripheral wall of the lifting rod (10), and a transmission belt (11) is fixedly connected within the mounting groove. The tilting housing (40) is used to connect to the hull. An electric telescopic rod (41) is installed inside the tilting housing (40). Both ends of the electric telescopic rod (41) are hinged to the tilting housing (40) and the steering housing (30), respectively. The bottom end of the steering housing (30), away from the lifting rod (10), is hinged to the tilting housing (40). The telescopic rod (41) is used to drive the steering housing (30) to flip relative to the tilting housing (40). The steering housing (30) is provided with a motor (31), a clutch mechanism, a first transmission mechanism and a second transmission mechanism. The motor (31) is driven to connect with the engagement end of the clutch mechanism. The engagement end of the clutch mechanism is used to switch between the first transmission mechanism and the second transmission mechanism. The first transmission mechanism is driven to connect with the lifting rod (10) and is used to drive the lifting rod (10) to rotate circumferentially. The lifting housing (20) is provided with a lifting mechanism. The second transmission mechanism is driven to connect with the lifting mechanism. The lifting mechanism is connected to the transmission belt (11) and is used to drive the lifting rod (10) to move axially through the transmission belt (11).

2. The marine jacking flow machine according to claim 1, characterized in that, The tilting housing (40) has a groove-shaped structure. The fixed end of the electric telescopic rod (41) is hinged between the two groove walls of the tilting housing (40) through the first pin (42). The steering housing (30) is hinged between the two groove walls of the tilting housing (40) through the second pin (43). A connecting rod (60) extends from the hinged end of the steering housing (30) and the tilting housing (40). The telescopic rod of the electric telescopic rod (41) is hinged to the connecting rod (60).

3. The marine jacking machine according to claim 2, characterized in that, The electric telescopic rod (41) is hinged to the connecting rod (60) via a third pin (44), and the telescopic rod of the electric telescopic rod (41) has an elongated hole (411), and the third pin (44) is slidably connected to the elongated hole (411).

4. The marine jacking machine according to claim 1, characterized in that, The clutch mechanism includes an electromagnetic actuator (321), a push-pull rod (322), and a transmission pin (323). The output shaft (311) of the motor (31) is a hollow shaft structure. The push-pull rod (322) passes through the output shaft (311) of the motor (31). The transmission pin (323) is connected to the lower end of the push-pull rod (322). The output shaft (311) of the motor (31) is driven to connect with the transmission pin (323). The electromagnetic actuator (321) is connected to the steering housing (30). The electromagnetic actuator (321) is driven to connect with the push-pull rod (322) and is used to drive the push-pull rod (322) to move up and down, so as to drive the transmission pin (323) to connect with the first transmission mechanism or the second transmission mechanism.

5. The marine jacking machine according to claim 4, characterized in that, The clutch mechanism also includes a support rod (324) vertically disposed in the steering housing (30) and a lever (325) hinged in the middle to the support rod (324). The two ends of the lever (325) are respectively hinged to the driving end of the electromagnetic actuator (321) and the push-pull rod (322).

6. The marine jacking machine according to claim 4, characterized in that, The output shaft (311) of the motor (31) has two waist-shaped holes symmetrically opened along the axial direction. The transmission pin (323) is arranged laterally and its two ends are slidably connected to the two waist-shaped holes respectively. The lower end of the push-pull rod (322) is connected to the middle part of the transmission pin (323).

7. The marine jacking machine according to claim 4, characterized in that, The first transmission mechanism includes a first gear (33) and a first gear disc (34) meshing with each other, and the second transmission mechanism includes a second gear (35) and a second gear disc (36) meshing with each other. The first gear (33) and the second gear (35) are rotatably connected to the output shaft (311) of the motor (31), and the opposite end faces of the first gear (33) and the second gear (35) are respectively provided with slots. The transmission pin (323) is used to switch between the two slots. The lifting rod (10) is sleeved. A first sleeve (37) is attached, and a first gear plate (34) is fixedly sleeved on the outer wall of the first sleeve (37). The first sleeve (37) slides axially and is circumferentially limited to the lifting rod (10). A second sleeve (38) is rotatably sleeved on the upper end of the first sleeve (37). The second gear plate (36) is fixedly sleeved on the lower outer wall of the second sleeve (38). The upper end of the second sleeve (38) passes through the lifting housing (20) and is connected to the lifting mechanism for driving the lifting mechanism to move.

8. The marine jacking machine according to claim 7, characterized in that, The upper end of the second sleeve (38) is fixedly sleeved with a third gear disc (21). The lifting mechanism includes a worm (22) and a turbine (23) that are rotatably connected to and mesh with each other in the lifting housing (20). The end of the worm (22) is coaxially provided with a third gear (24). The third gear (24) meshes with the third gear disc (21). The turbine (23) is coaxially provided with a pulley (25). The pulley (25) is connected to the transmission belt (11).

9. The marine jacking machine according to claim 8, characterized in that, The transmission belt (11) is an inner toothed belt. The two ends of the transmission belt (11) are fixedly connected to the upper and lower ends of the lifting rod (10), respectively. The pulley (25) is a toothed pulley adapted to the transmission belt (11). The transmission belt (11) is wound around and meshed with the pulley (25).

10. The marine jacking machine according to claim 8, characterized in that, The lifting housing (20) is provided with a third sleeve (26), which slides axially and is circumferentially limited to the lifting rod (10). The upper end of the third sleeve (26) has a mounting plate (27) extending radially, and the mounting plate (27) has a mounting bracket (28) extending downward. The worm (22) and the turbine (23) are rotatably connected to the mounting bracket (28).

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