Lifting and steering integrated structure of marine top flow machine and marine top flow machine

Abstract

The application relates to the technical field of marine equipment, and provides a lifting and steering integrated structure of a marine top flow machine and the marine top flow machine, the lifting and steering integrated structure of the marine top flow machine comprising a screw rod, a shell, a sleeve arranged in the shell, a stator assembly and a clutch mechanism, the sleeve is sleeved on the screw rod and is threadedly connected with the screw rod, the lower end of the screw rod extends out of the shell and is used for connecting a propeller, the stator assembly is connected in the shell, the sleeve is located at the center of the stator assembly and is configured as a rotor matched with the stator assembly, the stator assembly is used for driving the sleeve to rotate, the engaging part of the clutch mechanism is sleeved on the screw rod and is in circumferential limiting fit with the screw rod, and the engaging part of the clutch mechanism is used for switching the connection between the sleeve and the shell. The technical effect of extremely simplified, small space occupation, clear control logic and high reliability is achieved, and the limitation of the traditional double-motor mode is successfully broken through.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, and more specifically, to a lifting and steering integrated structure for a marine jacking machine and the marine jacking machine itself. Background Technology

[0002] To maintain a vessel's stationary position, marine jacking engines require adjusting their underwater thrusters to the appropriate depth and direction. Traditionally, lifting and lowering are achieved via linear transmission through a cable-driven structure, while horizontal steering relies on a separate rotary drive system. These two systems are typically mechanically decoupled, requiring independent drive motors and control systems. Furthermore, their spatial layout often interferes with each other, making installation and maintenance inconvenient. This split and cumbersome structure is a significant drawback, especially on small and medium-sized vessels with limited space and load capacity.

[0003] Furthermore, some traditional attempts at "integration" often merely involve tightly encapsulating two independent motors within a single housing, without fundamentally merging them at the transmission principle level. This physical proximity does not reduce the number of power sources or the complexity of the control unit, nor does it resolve potential interference issues between the two sets of motions. Simultaneously, the mechanical interface between the cable-driven lifting structure and the rotary drive structure often presents a trade-off between structural strength and motion accuracy. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to directly and efficiently complete the fundamental integration of lifting and turning actions through a single motor body, so as to break through the limitations of the traditional dual-motor mode for lifting and turning of marine jacking machines.

[0005] This invention provides an integrated lifting and steering structure for a marine jacking engine, comprising a screw, a housing, and a sleeve, a stator assembly, and a clutch mechanism disposed within the housing. The sleeve is fitted onto and threadedly connected to the screw. The lower end of the screw extends out of the housing and is used to connect to a propeller. The stator assembly is connected within the housing. The sleeve is located at the center of the stator assembly and is configured as a rotor adapted to the stator assembly. The stator assembly is used to drive the sleeve to rotate. The engaging component of the clutch mechanism is fitted onto the screw and circumferentially limited by the screw. The engaging component of the clutch mechanism is used to switch between the sleeve and the housing.

[0006] Optionally, the clutch mechanism includes an electromagnetic actuator and a coupling ring. The coupling ring is sleeved on the screw and is used to slide axially with the screw and be circumferentially limited. The electromagnetic actuator is fixedly connected to the lower end of the housing and is used to drive the coupling ring to move up and down along the screw. The upper end and lower end of the coupling ring are respectively provided with a first locking part and a second locking part. The first locking part is used to lock with the sleeve, and the second locking part is used to lock with the electromagnetic actuator.

[0007] Optionally, the lower end sidewall of the sleeve is provided with a raised ring, and the lower end of the raised ring is provided with a third locking part. The first locking part is used to lock with the third locking part along the circumference of the connecting ring. The electromagnetic driver is provided with a fourth locking part, and the second locking part is used to lock with the fourth locking part along the circumference of the connecting ring.

[0008] Optionally, the first snap-fit ​​portion, the second snap-fit ​​portion, the third snap-fit ​​portion, and the fourth snap-fit ​​portion are all stepped structures that protrude along the axial direction of the screw.

[0009] Optionally, the connecting ring is a circular ring structure, with a protruding slider on its inner circumferential wall, and the outer circumferential wall of the screw is provided with a groove along the axial direction that matches the slider, and the slider is slidably connected in the groove.

[0010] Optionally, an external thread is provided on one side of the outer circumferential wall of the screw, and the groove is provided on the other side of the outer circumferential wall of the screw.

[0011] Optionally, the sleeve includes a cylindrical body and a copper nut embedded in the body, the nut having an internal thread adapted to the external thread.

[0012] Optionally, the housing includes a cylinder and an upper connecting seat and a lower connecting seat connected to the upper and lower ends of the cylinder, the screw passes through the upper connecting seat and the lower connecting seat, and the outer circumferential wall of the stator assembly is connected to the inner circumferential wall of the cylinder.

[0013] Optionally, the electromagnetic actuator is embedded in the lower connector, and the screw passes through the electromagnetic actuator.

[0014] Compared with related technologies, the integrated lifting and steering structure of the marine jacking machine provided by the present invention has the following technical advantages:

[0015] The marine jacking turbine provided by this invention features an integrated lifting and steering structure. This structure directly connects a sleeve (acting as a rotor) to a screw via a threaded connection, and integrates the stator assembly driving the sleeve within the same housing, creating a compact unit with the sleeve as the core actuator. Furthermore, by adding a clutch mechanism, the engaging component of the clutch mechanism is sleeved onto the screw and circumferentially limited, allowing the engaging component to switch between the sleeve and the housing. This achieves functional mode switching from a single power source (stator assembly). Specifically, when the clutch mechanism's engagement component connects to the sleeve, the stator assembly drives the sleeve to rotate. Power is transmitted to the screw through the circumferential limiting effect of the engagement component, causing the screw and its lower-end propeller to rotate as a whole, thus achieving the directional control function of the flow machine. At this time, the sleeve and screw rotate synchronously using the engagement component. When the clutch mechanism's engagement component connects to the housing, the rotational constraint between the sleeve and the screw is released. The rotation of the sleeve then allows it to act as a "nut," driving the screw to move axially in a linear fashion through the threaded pair formed with the screw, thus achieving the lifting and lowering function of the flow machine. This solution, through the ingenious combination of a stator assembly, a switchable clutch mechanism, and a set of threaded transmission pairs, achieves the decoupling and generation of lifting and steering mechanical movements, thereby fundamentally integrating them from the perspective of transmission principles. It completely eliminates the redundant structure of the traditional dual-motor mode, achieving extreme simplification, small space occupation, clear control logic, and high reliability, successfully overcoming the limitations of the traditional dual-motor mode.

[0016] In addition, the present invention also provides a marine jacking machine, including the lifting and steering integrated structure of the marine jacking machine as described above.

[0017] Compared with related technologies, the marine jacking machine provided by the present invention has the same technical effect as the above-mentioned integrated lifting and steering structure of the marine jacking machine by setting up the lifting and steering structure of the marine jacking machine as described above, and will not be repeated here. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the integrated lifting and steering structure of the marine jacking machine according to an embodiment of the present invention.

[0019] Figure 2 This is a partial three-dimensional structural diagram of the integrated lifting and steering structure of the marine jacking machine according to an embodiment of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the internal structure of the integrated lifting and steering structure of the marine jacking machine according to an embodiment of the present invention.

[0021] Figure 4This is a schematic diagram of a portion of the three-dimensional structure within the housing of the integrated lifting and steering structure of the marine jacking turbine according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a schematic diagram of a portion of the three-dimensional structure within the housing of the integrated lifting and steering structure of the marine jacking turbine according to an embodiment of the present invention. Figure 2 .

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-Screw, 11-Slide groove, 12-External thread, 20-House, 21-Cylinder, 22-Upper connecting seat, 23-Lower connecting seat, 30-Sleeve, 31-Protruding ring, 311-Third snap-fit ​​part, 40-Stator assembly, 51-Electromagnetic actuator, 52-Connecting ring, 521-First snap-fit ​​part, 522-Second snap-fit ​​part. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figures 1 to 3 As shown, this embodiment of the invention provides an integrated lifting and steering structure for a marine jacking engine, including a screw 10, a housing 20, and a sleeve 30, a stator assembly 40, and a clutch mechanism disposed within the housing 20. The sleeve 30 is sleeved on the screw 10 and threadedly connected to it. The lower end of the screw 10 extends out of the housing 20 and is used to connect to a propeller. The stator assembly 40 is connected within the housing 20. The sleeve 30 is located at the center of the stator assembly 40 and is configured as a rotor adapted to the stator assembly 40. The stator assembly 40 is used to drive the sleeve 30 to rotate. The engaging component of the clutch mechanism is sleeved on the screw 10 and circumferentially limited to the screw 10. The engaging component of the clutch mechanism is used to switch between the sleeve 30 and the housing 20.

[0032] It should be noted that the above structure constitutes the core integrated architecture of this embodiment. By highly integrating the power source (stator assembly 40), motion converter (threaded pair of sleeve 30 and screw 10), and mode switcher (clutch mechanism), the lifting and steering functions, which traditionally require two independent systems, are integrated into a single, compact mechanical unit. This fundamentally solves the problems of cumbersome and low space utilization in the dual-motor mode structure described in traditional technologies. The stator assembly 40 can be understood as a ring motor stator, which, after excitation, generates rotational torque in the sleeve 30 (as the rotor) located at its center. The "circumferential limiting fit" between the engagement component of the clutch mechanism and the screw 10 means that the engagement component remains fixed to the screw 10 circumferentially (in the direction of rotation), thereby enabling the rotational motion to be transmitted to or received from the screw 10 (through the sleeve 30) without loss.

[0033] Specifically, the housing 20 provides sealing protection and a mounting reference for the entire mechanism. The upper and lower ends of the screw 10 pass through the housing 20 via, for example, sealed guide sleeves, ensuring both flexible rotation relative to the housing 20 (for steering) and smooth axial movement (for lifting). The sleeve 30 is supported inside the housing 20 by bearings, ensuring its rotational accuracy. The entire structure, as a modular unit, can be directly mounted to the stern plate via the housing 20, making installation extremely simple.

[0034] In this embodiment, the integrated lifting and steering structure of the marine jacking machine provides a compact unit with the sleeve 30 as the core actuator by directly threading the sleeve 30 (which serves as the rotor) to the screw 10 and integrating the stator assembly 40 that drives the sleeve 30 into the same housing 20. Furthermore, by adding a clutch mechanism, the engaging component of the clutch mechanism is sleeved onto the screw 10 and circumferentially limited, allowing the engaging component to switch between the sleeve 30 and the housing 20. This achieves functional mode switching under a single power source (stator assembly 40). Specifically, when the engagement component of the clutch mechanism is connected to the sleeve 30, the stator assembly 40 drives the sleeve 30 to rotate. The power is transmitted to the screw 10 through the circumferential limiting effect of the engagement component, causing the screw 10 and its lower end propeller to rotate as a whole, realizing the steering function of the top flow machine. At this time, the sleeve 30 and the screw 10 rotate synchronously using the engagement component. When the engagement component of the clutch mechanism is connected to the housing 20, the rotational constraint between the sleeve 30 and the screw 10 is released. At this time, the rotation of the sleeve 30 causes it to act as a "nut" to drive the screw 10 to make axial linear motion through the threaded pair formed with the screw 10, realizing the lifting function of the top flow machine. This solution achieves the decoupling and generation of lifting and steering mechanical movements through the ingenious combination of a stator assembly 40, a switchable clutch mechanism and a set of threaded transmission pairs. It then completes a fundamental integration from the perspective of transmission principle, completely abandons the redundant structure of the traditional dual-motor mode, and achieves the technical effects of extreme simplification, small space occupation, clear control logic and high reliability, successfully breaking through the limitations of the traditional dual-motor mode.

[0035] Optionally, such as Figures 3 to 6 As shown, the clutch mechanism includes an electromagnetic actuator 51 and a coupling ring 52. The coupling ring 52 is sleeved on the screw 10 and is used to slide axially with the screw 10 and be circumferentially limited. The electromagnetic actuator 51 is fixedly connected to the lower end of the housing 20 and is used to drive the coupling ring 52 to move up and down along the screw 10. The upper end and lower end of the coupling ring 52 are respectively provided with a first locking part 521 and a second locking part 522. The first locking part 521 is used to lock with the sleeve 30, and the second locking part 522 is used to lock with the electromagnetic actuator 51.

[0036] Specifically, the electromagnetic actuator 51 can be a solenoid or a linear motor. A guide key or slider is provided on the mating surface between the inner hole of the engagement ring 52 and the screw 10 to achieve circumferential limiting. By controlling the energizing direction of the electromagnetic actuator 51, the engagement ring 52 can be precisely driven to move up or down, causing its first engaging portion 521 to engage with the sleeve 30, or its second engaging portion 522 to engage with the body of the electromagnetic actuator 51 (or the portion fixed to the housing 20).

[0037] In this embodiment, by employing an electromagnetic actuator 51 to directly drive the engagement ring 52, rapid, precise, and automated clutch switching is achieved. Different locking portions are provided at the upper and lower ends of the engagement ring 52, providing a clear and reliable mechanical interface for switching the power transmission path. This design simplifies complex mode switching into a single linear drive action, resulting in fast response and simple, reliable control.

[0038] Optionally, such as Figures 3 to 6 As shown, the lower end of the sleeve 30 extends outward and is provided with a protruding ring 31. The lower end of the protruding ring 31 is provided with a third locking part 311. The first locking part 521 is used to lock with the third locking part 311 along the circumference of the connecting ring 52. The electromagnetic driver 51 is provided with a fourth locking part. The second locking part 522 is used to lock with the fourth locking part along the circumference of the connecting ring 52.

[0039] Specifically, the third and fourth engaging portions can be structures such as teeth, keyways, or bosses. When the engaging ring 52 moves upward, its first engaging portion 521 engages or fits with the third engaging portion 311 of the sleeve 30, and the rotational power of the sleeve 30 is directly transmitted to the engaging ring 52, thereby driving the screw 10 to rotate (steering mode). When the engaging ring 52 moves downward, its second engaging portion 522 locks with the fourth engaging portion on the electromagnetic actuator 51, and the engaging ring 52 is fixedly connected to the housing 20 (via the electromagnetic actuator 51). At this time, there is no rotational constraint between the sleeve 30 and the screw 10 (lifting mode).

[0040] In this embodiment, the raised ring 31 and its third engaging portion 311 provide a robust and easily engaging interface for the sleeve 30. A fourth engaging portion is integrated on the electromagnetic actuator 51, enabling the engaging ring 52 to form a secure connection with the housing 20 when in the descending position. This well-defined engaging point design ensures absolute isolation and effective connection of the power transmission paths in both operating modes, avoiding interference or power loss during mode switching.

[0041] Optionally, such as Figures 3 to 6 As shown, the first snap-fit ​​portion 521, the second snap-fit ​​portion 522, the third snap-fit ​​portion 311 and the fourth snap-fit ​​portion are all stepped structures that protrude along the axial direction of the screw 10.

[0042] Specifically, the stepped structure can be rectangular or trapezoidal, and multiple stepped structures can be arranged along the circumference. Multiple stepped structures engaging simultaneously can transmit greater torque, or multiple stepped structures can provide a more convenient and rapid alignment connection. The axial side of the step serves as the force-bearing surface for transmitting torque, while the end face is used for axial positioning.

[0043] In this embodiment, an axially protruding stepped structure is used as the engaging part, which has advantages such as large contact area, uniform force distribution, strong torque transmission capability, and good engagement rigidity. This structural form is easy to process, and the engagement depth is easy to control, which can ensure rapid alignment during clutch engagement and withstand impact loads during operation, greatly improving the durability and reliability of the clutch mechanism.

[0044] Optionally, such as Figures 3 to 6 As shown, the connecting ring 52 is a circular ring structure, and its inner circumferential wall is provided with a protruding slider. The outer circumferential wall of the screw 10 is provided with a groove 11 that matches the slider along the axial direction, and the slider is slidably connected in the groove 11.

[0045] Specifically, the slide groove 11 is arranged along the entire length or key stroke section of the screw 10. The fit clearance between the slider and the slide groove 11 is very small, which can ensure that the connecting ring 52 slides smoothly along the axial direction of the screw 10, and also ensure that the two rotate completely synchronously in the circumferential direction without any relative rotation.

[0046] In this embodiment, the classic cooperation between the slider and the groove 11 achieves the core functional requirements of "axial sliding and circumferential limiting" between the connecting ring 52 and the screw 10 with the simplest structure. This design has low friction and precise guidance, and can reliably transmit rotational motion from the connecting ring 52 to the screw 10 (when turning), or conversely, release the rotational constraint of the screw 10 (when lifting). It is the basic mechanical structure for realizing functional switching.

[0047] Optionally, such as Figures 2 to 6 As shown, an external thread 12 is provided on one side of the outer circumferential wall of the screw 10, and the sliding groove 11 is provided on the other side of the outer circumferential wall of the screw 10.

[0048] Specifically, the external thread 12 is used to engage with the nut inside the sleeve 30, converting the rotational motion of the sleeve 30 into the linear motion of the screw 10. The groove 11 is arranged on the cylindrical surface outside the threaded area, and the two are offset in the circumferential direction so as not to interfere with each other.

[0049] In this embodiment, the screw 10 layout design with "thread on one side and groove 11 on the other" cleverly integrates two functional features on a single shaft. This allows the screw 10 to simultaneously meet the requirements of threaded transmission with the sleeve 30, as well as the requirements of guiding sliding and torque transmission with the engagement ring 52. This design simplifies the machining process of the screw 10 and optimizes its stress distribution, which is key to the compact overall structure. Simultaneously, the external thread 12 on one side of the outer circumferential wall of the screw 10, thus retaining a portion of the complete cylindrical surface, significantly enhances the screw 10's resistance to bending under the lateral thrust of the propeller, improving structural reliability.

[0050] Optionally, such as Figures 2 to 4 As shown, the sleeve 30 includes a cylindrical body and a copper nut embedded in the body. The nut is provided with an internal thread that is compatible with the external thread 12.

[0051] Specifically, the cylindrical body is typically made of steel or stainless steel, providing structural strength and magnetic coupling with the stator assembly 40. A copper nut is fixed within the body by means of interference fit, key connection, or sintering, providing a wear-resistant threaded drive surface. This split design balances structural strength, magnetic performance, and transmission efficiency.

[0052] In this embodiment, a composite sleeve structure with an embedded copper nut is adopted, which fully utilizes the excellent wear resistance and friction reduction properties of copper, significantly improving the service life and transmission efficiency of the threaded pair. Meanwhile, the steel body ensures the mechanical strength and magnetic circuit integrity required for the sleeve 30 as a motor rotor. This optimized combination of materials and functions enhances the reliability and efficiency of the entire drive system.

[0053] Optionally, such as Figures 2 to 4 As shown, the housing 20 includes a cylinder 21 and an upper connecting seat 22 and a lower connecting seat 23 connected to the upper and lower ends of the cylinder 21. The screw 10 passes through the upper connecting seat 22 and the lower connecting seat 23. The outer circumferential wall of the stator assembly 40 is connected to the inner circumferential wall of the cylinder 21.

[0054] Specifically, the cylinder 21, upper connecting seat 22, and lower connecting seat 23 are typically connected by bolts and fitted with sealing rings to form a waterproof, sealed cavity. The outer wall of the stator assembly 40 is tightly fitted or fixed to the inner wall of the cylinder 21 to ensure good heat dissipation and stable installation.

[0055] In this embodiment, the modular housing 20 design (cylinder 21 and end connectors) facilitates machining, assembly, and maintenance. It securely integrates the stator assembly 40 and provides two precise upper and lower support points for the screw 10, ensuring coaxiality and smoothness of the screw 10's movement (whether rotational or axial). This structure provides a robust, sealed, and easily manufactured foundation for the entire integrated mechanism.

[0056] Optionally, such as Figures 3 to 5 As shown, the electromagnetic actuator 51 is embedded in the lower connecting seat 23, and the screw 10 passes through the electromagnetic actuator 51.

[0057] Specifically, the housing of the electromagnetic actuator 51 is precisely fitted and secured to the mounting holes of the lower connector 23, with a central through-hole allowing the screw 10 to pass through. This embedded mounting makes the electromagnetic actuator 51 an integral part of the housing 20 structure, greatly saving axial space and making the overall appearance more compact and neat.

[0058] In this embodiment, embedding the electromagnetic actuator 51 within the lower connector 23 is a key step in achieving an ultra-compact design. This not only eliminates the additional space occupied by the clutch drive components but also shortens the stroke of the clutch actuator (engagement ring 52), resulting in a more compact structure, better rigidity, and faster response. This perfectly embodies the design philosophy of achieving high functional integration within a limited space.

[0059] In addition, another embodiment of the present invention provides a marine jacking machine, including the integrated lifting and steering structure of the marine jacking machine as described above.

[0060] For example, the marine jacking machine is mounted on the stern plate via the housing 20.

[0061] In this embodiment, the marine jacking machine provided in this embodiment has the same technical effect as the integrated lifting and steering structure of the marine jacking machine described above, and will not be repeated here.

[0062] 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 lifting and steering integrated structure for a marine jacking machine, characterized in that, The device includes a screw (10), a housing (20), a sleeve (30) disposed within the housing (20), a stator assembly (40), and a clutch mechanism. The sleeve (30) is fitted onto the screw (10) and threadedly connected to the screw (10). The lower end of the screw (10) extends out of the housing (20) and is used to connect to a propeller. The stator assembly (40) is connected within the housing (20). The sleeve (30) is located at the center of the stator assembly (40) and is configured as a rotor adapted to the stator assembly (40). The stator assembly (40) is used to drive the sleeve (30) to rotate. The engaging part of the clutch mechanism is fitted onto the screw (10) and circumferentially limited to the screw (10). The engaging part of the clutch mechanism is used to switch between the sleeve (30) and the housing (20). The clutch mechanism includes an electromagnetic actuator (51) and a coupling ring (52). The coupling ring (52) is sleeved on the screw (10) and is used to slide axially and be circumferentially limited with the screw (10). The electromagnetic actuator (51) is fixedly connected to the lower end of the housing (20) and is used to drive the coupling ring (52) to move up and down along the screw (10). The upper end and lower end of the coupling ring (52) are respectively provided with a first snap-fit ​​part (521) and a second snap-fit ​​part (522). The first snap-fit ​​part (521) is used to snap-fit ​​with the sleeve (30), and the second snap-fit ​​part (522) is used to snap-fit ​​with the electromagnetic actuator (51). The lower end sidewall of the sleeve (30) is provided with a protruding ring (31), and the lower end of the protruding ring (31) is provided with a third snap-fit ​​part (311). The first snap-fit ​​part (521) is used to snap-fit ​​with the third snap-fit ​​part (311) along the circumference of the connecting ring (52). The electromagnetic driver (51) is provided with a fourth snap-fit ​​part, and the second snap-fit ​​part (522) is used to snap-fit ​​with the fourth snap-fit ​​part along the circumference of the connecting ring (52). The first snap-fit ​​portion (521), the second snap-fit ​​portion (522), the third snap-fit ​​portion (311) and the fourth snap-fit ​​portion are all stepped structures that protrude along the axial direction of the screw (10).

2. The integrated lifting and steering structure of the marine jacking machine according to claim 1, characterized in that, The connecting ring (52) is a circular ring structure with a protruding slider on its inner circumferential wall. The outer circumferential wall of the screw (10) is provided with a groove (11) that matches the slider along the axial direction. The slider is slidably connected in the groove (11).

3. The integrated lifting and steering structure of the marine jacking machine according to claim 2, characterized in that, The screw (10) has an external thread (12) on one side of its outer circumferential wall, and the groove (11) is provided on the other side of the outer circumferential wall of the screw (10).

4. The integrated lifting and steering structure of the marine jacking machine according to claim 3, characterized in that, The sleeve (30) includes a cylindrical body and a copper nut embedded in the body. The nut is provided with an internal thread that is compatible with the external thread (12).

5. The integrated lifting and steering structure of the marine jacking machine according to claim 1, characterized in that, The housing (20) includes a cylinder (21) and an upper connecting seat (22) and a lower connecting seat (23) connected to the upper and lower ends of the cylinder (21). The screw (10) passes through the upper connecting seat (22) and the lower connecting seat (23). The outer circumferential wall of the stator assembly (40) is connected to the inner circumferential wall of the cylinder (21).

6. The integrated lifting and steering structure of the marine jacking machine according to claim 5, characterized in that, The electromagnetic actuator (51) is embedded in the lower connecting seat (23), and the screw (10) passes through the electromagnetic actuator (51).

7. A marine jacking flow generator, characterized in that, Including the integrated lifting and steering structure of the marine jacking machine as described in any one of claims 1-6.

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