Anti-heeling rotating wing in emergency floating and working process

Abstract

The invention relates to an anti-heeling rotating wing in emergency floating and a working process, the anti-heeling rotating wing in emergency floating comprises a boat body assembly, the boat body assembly comprises a light shell, a pressure-resistant cabin and a throwing object are distributed in the light shell, symmetrical mounting bases are arranged in the light shell, each mounting base comprises a bearing base and an oil cylinder base, the bearing bases support and mount a rotating shaft, and the oil cylinder bases support and mount the rotating shaft; an oil cylinder assembly is installed on the oil cylinder base in a supporting mode, and a sliding ring external member is installed in the oil cylinder assembly. A left wing assembly and a right wing assembly are symmetrically arranged at the two ends of the light shell, and the left wing assembly and the right wing assembly are the same in structure and both connected with the rotating shaft. When the submersible breaks into a cabin and seriously heels and falls deeply, the single-side horizontal wing can be turned into a vertical state without power, righting torque is formed, heeling is weakened, and load rejection is convenient to implement. When the horizontal wing on the other side is turned into a vertical state and locked after load rejection, the horizontal wing on the other side is also automatically turned into a vertical state and locked, the floating resistance is reduced, the floating speed and the stability of the posture are improved, and meanwhile protection of the water surface impact load of the horizontal wing is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of emergency buoyancy anti-rolling equipment for submersibles, in particular to a rotating wing for anti-rolling during emergency buoyancy and a working process thereof. Background Art

[0002] With the entry and exploration of deep sea, the diving depth of submersibles gradually increases. During deep sea operation, once the pressure cabin of the submersible is damaged, it will form an extremely high inflow velocity and a large amount of water intake, causing the submersible to drop rapidly and produce a large roll. When the roll angle of the hull exceeds the allowable value of the dumping mechanism, the gravity dumping mechanism cannot dump the load, resulting in anti-sinking failure. Therefore, measures to reduce the roll in emergency anti-sinking are needed.

[0003] The heel adjustment of a submersible is mainly achieved by moving heavy loads or adjusting water in the water tank, which usually requires an electric or hydraulic system to drive it. However, in the event of a serious failure such as a pressure tank breach and water ingress, these systems are difficult to ensure availability and cannot provide an effective backup.

[0004] When water enters the pressure compartment of a submersible, especially the upper compartment, the metacentric height of the submersible is usually greatly reduced. During high-speed descent, the hydrodynamic force generated by the submersible's horizontal wings greatly enhances the ability to affect the submersible's attitude at low metacentric height. When the submersible dumps its load and turns to surfacing, the water entering the compartment reduces the positive buoyancy and reduces the surfacing speed. During surfacing, the vertical resistance of the horizontal wings is large, which further reduces the surfacing speed and is not conducive to rapid escape.

[0005] From the above analysis, it can be seen that fixed horizontal wings are not conducive to the improvement of emergency anti-sinking capabilities and need to be improved. For the rotating device of the horizontal wing, the publication number is CN106394838B, which discloses a device for adjusting the diving and floating speed of the submersible, and discloses a scheme for driving the horizontal wing to switch between horizontal and vertical states through a cylinder crank mechanism to adjust the floating and diving speed. However, this scheme and similar schemes require power, have a complex structure, and have weak anti-interference capabilities. Since the structural safety of the pressure cabin is the focus of the design of the submersible, the probability of the cabin breaking and sinking is relatively small.

[0006] Equipping the horizontal wing with a steering gear for emergency anti-sinking and anti-rolling is very likely to cause spatial interference with the existing horizontal rudder steering gear, while increasing weight, occupying cabin space, and pushing up the cost, resulting in a very low cost-effectiveness. Therefore, there is an urgent need for a self-contained, anti-interference, and low-burden horizontal wing rotation device to provide anti-rolling and drag reduction effects for emergency buoyancy. Summary of the invention

[0007] In view of the above-mentioned drawbacks in the existing production technologies, the present applicant provides a rotating wing with anti-heeling during emergency surfacing and its working process, thereby effectively solving the problems in the existing technologies, greatly improving the working reliability, and providing the effects of anti-heeling and drag reduction during emergency surfacing.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A rotating wing with anti-heeling during emergency surfacing includes a hull assembly. The hull assembly includes a light outer shell. Inside the light outer shell, a pressure-resistant cabin and throwable loads are distributed. Symmetric installation bases are arranged inside the light outer shell. The installation bases include a bearing base and an oil cylinder base. The bearing base supports and installs a rotating shaft, and the oil cylinder base supports and installs an oil cylinder assembly. A slip ring kit is installed inside the oil cylinder assembly; A left wing assembly and a right wing assembly are symmetrically arranged at both ends of the light outer shell. The left wing assembly and the right wing assembly have the same structure and are both connected to the rotating shaft.

[0010] Its further technical solution lies in:

[0011] The structure of the left wing assembly is: including a wing plate, a rotating shaft, a gear and a limiting rod. The left end of the rotating shaft is vertically fixed on the right end face of the wing plate. A gear is installed at the right end of the rotating shaft. At the same time, a limiting rod is installed on the rotating shaft. The limiting rod is located at the outer end face of the oil cylinder assembly.

[0012] The wing plate is an unbalanced rudder.

[0013] The rotating shaft is a rigid cylindrical shaft.

[0014] The limiting rod is a rigid cylindrical rod and there are two in total.

[0015] The structure of the slip ring kit is: including a support cylinder, a limiting internal gear ring, a left gear bearing and a right gear bearing. The support cylinder is sleeved outside the rotating shaft. A limiting internal gear ring, a left gear bearing and a right gear bearing are installed between the support cylinder and the rotating shaft. The left gear bearing, the limiting internal gear ring and the right gear bearing are installed end-to-end tightly in the support cylinder in sequence and all have tooth rings. The tooth rings are meshed with the gear.

[0016] The left gear bearing and the right gear bearing are completely identical one-way internal gear bearings.

[0017] Axial chutes are provided on the outer side of the support cylinder. There are four axial chutes in total, which are centrosymmetric about the axis center of the support cylinder. The support cylinder has positioning holes.

[0018] The structure of the oil cylinder assembly is as follows: it includes an oil cylinder barrel shell, an oil cylinder head, an oil cylinder slide rail, a limit block, and a positioning bead. Oil cylinder heads are respectively fixed at both ends of the oil cylinder barrel shell. An oil cylinder slide rail is fixed inside the oil cylinder barrel shell, and the oil cylinder slide rail is parallel to the axis of the oil cylinder barrel shell. A limit block is arranged on the outer end face of the oil cylinder head, corresponding to the limit rod. A positioning bead is installed on the oil cylinder barrel shell. When the support cylinder is in the exact middle of the oil cylinder, the positioning bead just engages with the positioning hole.

[0019] The working process of a rotating wing for anti - roll during emergency surfacing includes the following steps:

[0020] During normal navigation, the rotation of the gear is restricted by the limit internal gear ring and cannot rotate, maintaining the horizontal wing state.

[0021] When the hull has a large right - hand roll, the slip - ring kit slides to the right under the action of its own gravity, overcoming the limiting effect of the positioning bead, until it touches the right - hand oil cylinder head and then stops moving. At this time, the states of the left and right gears are as follows:

[0022] The left - hand gear disengages from the slip - ring kit and is completely exposed, and can rotate freely.

[0023] The left - hand wing is an unbalanced rudder. During a depth - drop dive, it is deflected towards the vertical state by hydrodynamic forces. When the left - hand wing turns to the vertical state, the limit rod rotates along with the rotating shaft and presses on the limit block. Due to the large moment of inertia of the left - hand wing, a large extrusion force and frictional force are generated between the limit rod and the limit block, realizing the stop of rotation and the locking of the position.

[0024] The right - hand gear disengages from the limit internal gear ring and completely penetrates into the left - gear bearing.

[0025] During a depth - drop dive, when the left - hand wing turns to the vertical state and the right - hand wing maintains a straight state, an anti - roll hydrodynamic moment is generated, reducing the roll angle of the hull and facilitating the implementation of the throwing - load mechanism for throwing load.

[0026] When the hull turns to surface after throwing load, the right - hand wing is subjected to hydrodynamic forces from top to bottom, pushing the trailing edge to deflect downwards. Since the rotation direction of the gear at this time is the same as the direction allowed by the left - gear bearing, the right - hand wing can rotate. When the right - hand wing turns to the vertical state, the limit rod on the rotating shaft generates extrusion and frictional forces with the limit block, realizing the stop of rotation and the locking of the position.

[0027] After that, both the left and right wings turn to the vertical state, reducing the vertical area and the surfacing resistance, increasing the surfacing speed, and enhancing the attitude stability.

[0028] The beneficial effects of the present invention are as follows:

[0029] The structure of the present invention is compact and reasonable, and it is convenient to operate. Through the mutual cooperation of components such as symmetric horizontal wings, rotating shafts, and limiting oil cylinders, when the submersible is severely flooded in the cabin and rolls and dives deeply, the unilateral horizontal wing can be turned into a vertical state without power, forming a righting moment, weakening the roll, and facilitating the implementation of jettisoning. When turning to float after jettisoning, the horizontal wing on the other side also automatically turns into a vertical state and locks, reducing the floating resistance, improving the floating speed and the stability of the attitude, and at the same time facilitating the protection of the horizontal wing from the water impact load. Usually, this device is used as a stabilizing fin, without interfering with the original functions, with less modification to the equipment, and facilitating the formation of a reserve of hidden anti-roll ability.

[0030] The present invention requires no power, has a simple structure, is light in weight, and has high reliability. The left and right horizontal wings share a set of devices, and the response to the roll angle is conveniently adjustable, providing a new device and usage method for improving the performance during emergency floating.

[0031] The present invention expands the function of the stabilizing fin, and can realize that under the condition of large roll and inability to jettison, the unilateral horizontal wing is rotated by the water flow force without power to generate a righting moment, reduce the roll angle, and facilitate the implementation of jettisoning.

[0032] During the floating after jettisoning in the present invention, both horizontal wings on both sides are turned into a vertical state, eliminating the unbalanced force between the left and right wings, reducing the floating resistance, and improving the attitude stability during the floating process.

[0033] The roll response angle of the present invention is convenient to adjust and has a wide application range.

[0034] The present invention can share a set of devices for the left and right rotating shafts, saving volume and weight. Brief Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of the present invention.

[0036] Figure 2 It is a diagram of the submersible with large roll and diving due to flooding in the right cabin of the present invention.

[0037] Figure 3 It is a process diagram of the left wing rotation of the present invention to weaken the roll and assist in jettisoning.

[0038] Figure 4 It is a process diagram of the right wing rotation during the floating after jettisoning of the present invention.

[0039] Figure 5 It is an installation schematic diagram of the oil cylinder assembly of the present invention.

[0040] Figure 6 It is an internal structural schematic diagram of the oil cylinder assembly of the present invention (half-sectional view during the rotation of the left wing under large roll).

[0041] Figure 7 It is a right half-section view of the oil cylinder of the present invention.

[0042] Among them: 11, wing plate; 12, rotating shaft; 13, gear; 14, limiting rod;

[0043] 21, bearing base; 22, oil cylinder base;

[0044] 31, support cylinder; 32, limiting internal gear ring; 33, left gear bearing; 34, right gear bearing;

[0045] 41, oil cylinder shell; 42, oil cylinder head; 43, oil cylinder slide rail; 44, limiting block; 45, positioning bead;

[0046] 51, light outer shell; 52, pressure-resistant cabin; 53, jettisonable load. Specific implementation mode

[0047] The following combines the accompanying drawings to illustrate the specific implementation mode of the present invention.

[0048] As Figures 1-7 shown, the anti-heeling rotating wing in the emergency surfacing of this embodiment includes a hull assembly. The hull assembly includes a light outer shell 51. Inside the light outer shell 51, a pressure-resistant cabin 52 and a jettisonable load 53 are distributed. Symmetric installation bases are arranged inside the light outer shell 51. The installation bases include a bearing base 21 and an oil cylinder base 22. The bearing base 21 supports and installs the rotating shaft 12. The oil cylinder base 22 supports and installs an oil cylinder assembly, and a slip ring kit is installed inside the oil cylinder assembly; Left wing assemblies and right wing assemblies are symmetrically arranged at both ends of the light outer shell 51. The left wing assembly and the right wing assembly have the same structure and are both connected to the rotating shaft 12.

[0049] The structure of the left wing assembly is: including a wing plate 11, a rotating shaft 12, a gear 13 and a limiting rod 14. The left end of the rotating shaft 12 is vertically fixed to the right end face of the wing plate 11. A gear 13 is installed at the right end of the rotating shaft 12. At the same time, a limiting rod 14 is installed on the rotating shaft 12. The limiting rod 14 is located at the outer end face of the oil cylinder assembly.

[0050] The wing plate 11 is an unbalanced rudder.

[0051] The rotating shaft 12 is a rigid cylindrical shaft.

[0052] The limiting rod 14 is a rigid cylindrical rod, and there are two in total.

[0053] The structure of the slip ring kit is: including a support cylinder 31, a limiting internal gear ring 32, a left gear bearing 33 and a right gear bearing 34. The support cylinder 31 is sleeved outside the rotating shaft 12. A limiting internal gear ring 32, a left gear bearing 33 and a right gear bearing 34 are installed between the support cylinder 31 and the rotating shaft 12. The left gear bearing 33, the limiting internal gear ring 32 and the right gear bearing 34 are sequentially installed in the support cylinder 31 with their end faces closely attached, and all have tooth rings, and the tooth rings are meshed with the gear 13.

[0054] The left gear bearing 33 and the right gear bearing 34 are identical one-way internal gear bearings.

[0055] The outer side of the support cylinder 31 is provided with axial sliding grooves. There are four axial sliding grooves in total, which are centrosymmetric about the axis center of the support cylinder 31. The support cylinder 31 is provided with positioning holes.

[0056] The structure of the oil cylinder assembly is as follows: it includes an oil cylinder shell 41, an oil cylinder head 42, an oil cylinder slide rail 43, a limit block 44 and a positioning bead 45. The two ends of the oil cylinder shell 41 are respectively fixed with an oil cylinder head 42. The inside of the oil cylinder shell 41 is fixed with an oil cylinder slide rail 43. The oil cylinder slide rail 43 is parallel to the axis of the oil cylinder shell 41. The outer end face of the oil cylinder head 42 is provided with a limit block 44. The limit block 44 corresponds to the limit rod 14. The oil cylinder shell 41 is provided with a positioning bead 45. When the support cylinder 31 is located in the middle of the oil cylinder, the positioning bead 45 just engages with the positioning hole.

[0057] The specific structure and function of a rotating wing for anti-heeling during emergency surfacing in the present invention are as follows:

[0058] It mainly includes a left wing assembly, a right wing assembly, a limit oil cylinder and a mounting base.

[0059] Among them, the limit oil cylinder is composed of an oil cylinder assembly and a slip ring kit. The left wing assembly and the right wing assembly are symmetrically installed on both sides of the hull assembly.

[0060] (1) Left wing assembly:

[0061] It mainly includes a wing plate 11, a rotating shaft 12, a gear 13 and a limit rod 14.

[0062] Among them, the wing plate 11 is an unbalanced rudder, and the underwater center of gravity is located on the axis of the rotating shaft 12. The wing plate 11 is installed outside the light outer shell 51 of the hull, in a horizontal state and perpendicular to the midship section.

[0063] Among them, the rotating shaft 12 is a rigid cylindrical shaft. The left end of the rotating shaft 12 is vertically fixed to the right end face of the left wing plate 11, and the right end of the rotating shaft 12 is fixed with a gear 13.

[0064] Among them, the limit rod 14 is a rigid cylindrical rod. There are two in total, which are vertically fixed to the rotating shaft 12 and are centrosymmetric about the axis of the rotating shaft 12. The axis of the limit rod 14 is located in the symmetry plane of the wing plate 11.

[0065] (2) Mounting base:

[0066] It mainly includes a bearing base 21 and an oil cylinder base 22.

[0067] Among them, the bearing base 21 is fixedly connected to the hull and is used to support the rotating shaft 12. The rotating shaft 12 can only rotate around the axis.

[0068] Among them, the oil cylinder base 22 is fixedly connected below the oil cylinder and is used to fix the oil cylinder.

[0069] (III) Slip ring kit:

[0070] It mainly includes a support cylinder 31, a limit internal gear ring 32, a left gear bearing 33, and a right gear bearing 34.

[0071] Among them, the outer side of the support cylinder 31 is provided with axial sliding grooves. There are a total of four axial sliding grooves, which are centrosymmetric about the axis of the support cylinder 31. The support cylinder 31 is provided with positioning holes. When the support cylinder 31 is located exactly in the middle of the oil cylinder, the positioning beads 45 just engage with the positioning holes.

[0072] Among them, the inner ring of the limit internal gear ring 32 is provided with a gear ring and is installed at the axial middle position inside the support cylinder 31.

[0073] Among them, the left gear bearing 33 and the right gear bearing 34 are exactly the same one-way internal gear bearings. When viewed from the right side of the hull, they can only rotate clockwise.

[0074] The left gear bearing 33, the limit internal gear ring 32, and the right gear bearing 34 are installed in the support cylinder 31 with their end faces closely attached in sequence. The inner ring gear rings of the three can all engage and drive with the gear 13.

[0075] The slip ring kit is installed on the slide rail inside the oil cylinder through the sliding grooves on the outside.

[0076] The slip ring kit can only slide axially with low friction and cannot rotate.

[0077] (IV) Oil cylinder assembly:

[0078] The oil cylinder assembly mainly includes an oil cylinder barrel shell 41, an oil cylinder head 42, an oil cylinder slide rail 43, a limit block 44, and a positioning bead 45.

[0079] Among them, the oil cylinder barrel shell 41 is a rigid cylindrical barrel shell with threaded through holes for installing the positioning beads 45.

[0080] Among them, there are two oil cylinder heads 42, which are fixedly connected to the two end faces of the oil cylinder barrel shell 41, and there is an installation through hole for the rotating shaft 12 in the middle.

[0081] Among them, the oil cylinder slide rail 43 is a long slide rail with balls, which is fixedly connected to the inner wall surface of the oil cylinder barrel shell 41 and is parallel to the axis of the oil cylinder barrel shell 41.

[0082] Among them, the limiting block 44 is a rubber block, which is fixedly connected to the outer surface of the cylinder head 42 of the oil cylinder. When the limiting rod 14 rotates to the vertical state, the limiting rod 14 will squeeze the limiting block 44 to generate a frictional locking force.

[0083] Among them, the positioning bead 45 uses an external thread positioning bead, also known as an external thread ball head plunger (SLDs). Its principle is to use spring pressure to push the ball bead to move and cooperate with the positioning hole to achieve partial locking function.

[0084] (V) Hull assembly:

[0085] The hull assembly mainly includes a light outer shell 51, a pressure-resistant cabin 52 and a jettisonable load 53.

[0086] Meet the mating relationship:

[0087] The oil cylinder barrel shell 41, the rotating shaft 12, the gear 13, the support cylinder 31, the limiting internal gear ring 32, the left gear bearing 33 and the right gear bearing 34 are coaxially installed.

[0088] The axial length ratio of the oil cylinder barrel shell 41, the support cylinder 31, the limiting internal gear ring 32, the left gear bearing 33, the right gear bearing 34 and the gear 13 is 8:4:2:1:1:1.

[0089] The gears 13 on the left and right wings extend into the oil cylinder, and there is a gap between the end faces of the gears 13.

[0090] During initial installation, the slip ring kit is located in the middle of the oil cylinder. Then, the gears on the left and right wings are both engaged with the limiting internal gear ring 32 and are partially engaged with the left gear bearing 33 and the right gear bearing 34 respectively.

[0091] Define the response roll angle of this device as the minimum hull roll angle for the slip ring kit to overcome the positioning bead 45 and slide. The response roll angle of this device is the same as the maximum allowable roll angle of the jettisoning mechanism.

[0092] During the actual working process:

[0093] During normal navigation, the hull roll angle will not be greater than the response roll angle of this device. Therefore, the slip ring kit is restricted by the positioning bead 45 and cannot slide axially. The rotation of the gears in the left and right wings is restricted by the limiting internal gear ring 32 and cannot rotate. Therefore, the horizontal wing state is maintained.

[0094] When the submersible encounters unilateral cabin flooding in the deep sea and the roll angle exceeds the allowable value of the jettisoning mechanism, jettisoning cannot be implemented. Since the response roll angle of this device is the same as the maximum allowable angle of the jettisoning mechanism, a large hull roll angle triggers the operation of this device. Since this device is symmetric left and right and the left and right roll principles are the same, only the right roll is taken as an example for illustration in this article.

[0095] When the hull is severely tilted to the right, under the action of its own gravity, the slip ring kit overcomes the limiting effect of the positioning beads 45 and slides to the right until it touches the right oil cylinder head 42 and then stops moving. At this time, the states of the left and right gears 13 are as follows:

[0096] a) The left gear 13 is disengaged from the slip ring kit and is completely exposed, and can rotate freely.

[0097] The left wing is an unbalanced rudder, and during the diving with depth loss, it is deflected towards the vertical state by hydrodynamic force. When the left wing turns to the vertical state, the limiting rod 14 rotates along with the rotating shaft 12 and presses against the limiting block 44. Due to the large moment of inertia of the left wing, a large extrusion force and frictional force are generated between the limiting rod 14 and the limiting block 44, realizing the stop of rotation and the locking of the position.

[0098] b) The right gear 13 is disengaged from the limiting internal gear ring 32 and completely penetrates into the left bearing gear.

[0099] The right wing is an unbalanced rudder, and the area behind the rotating shaft 12 is larger than the front. During the diving with depth loss, the water flow force will push the trailing edge of the right wing upwards. However, the gear of the right wing is engaged in the left gear bearing 33, and since the left gear bearing 33 is a one-way bearing and cannot rotate counterclockwise, the right wing cannot rotate and can only dive while maintaining a horizontal state.

[0100] During the diving with depth loss, when the left wing turns to the vertical state and the right wing maintains a straight state, an anti-rolling hydrodynamic moment will be generated, reducing the hull roll angle and facilitating the implementation of the throwing load mechanism for throwing the load.

[0101] When the hull turns to float after throwing the load, the right wing is subjected to hydrodynamic force from top to bottom, pushing the trailing edge downwards. Since the rotation direction of the gear at this time is the same as the direction allowed by the left gear bearing 33, the right wing can rotate. When the right wing turns to the vertical state, the limiting rod 14 on the rotating shaft 12 and the limiting block 44 generate extrusion and frictional force, realizing the stop of rotation and the locking of the position.

[0102] After that, both the left and right wings turn to the vertical state, reducing the vertical area and the floating resistance, increasing the floating speed, and enhancing the attitude stability.

[0103] The above description is an explanation of the present invention, not a limitation of the invention. The scope defined by the present invention can be seen in the claims, and any form of modification can be made within the protection scope of the present invention.

Claims

1. A rotating wing for resisting heeling during emergency floating, characterized in that: The invention comprises a hull assembly, wherein the hull assembly comprises a light outer shell (51), a pressure-resistant cabin (52) and a jettison (53) are distributed inside the light outer shell (51), a symmetrical mounting base is arranged inside the light outer shell (51), the mounting base comprises a bearing base (21) and a cylinder base (22), the bearing base (21) supports and mounts a rotating shaft (12), the cylinder base (22) supports and mounts a cylinder assembly, and a slip ring set is installed inside the cylinder assembly; a left wing assembly and a right wing assembly are symmetrically arranged at two ends of the light outer shell (51), the left wing assembly and the right wing assembly have the same structure and are both connected to the rotating shaft (12).

2. The anti-heeling rotating wing in emergency floating according to claim 1, characterized in that: The structure of the left wing assembly is as follows: it comprises a wing plate (11), a rotating shaft (12), a gear (13) and a limiting rod (14); the left end of the rotating shaft (12) is vertically fixed to the right end surface of the wing plate (11); the right end of the rotating shaft (12) is equipped with a gear (13); and the limiting rod (14) is installed on the rotating shaft (12); the limiting rod (14) is located on the outer end surface of the oil cylinder assembly.

3. The anti-heeling rotating wing in emergency floating according to claim 2, characterized in that: The wing plate (11) is an unbalanced rudder.

4. The anti-heeling rotating wing in emergency floating as claimed in claim 2, characterized in that: The rotating shaft (12) is a rigid cylindrical shaft.

5. The anti-heeling rotating wing in emergency floating as claimed in claim 2, characterized in that: The limiting rods (14) are rigid cylindrical rods, and there are two of them.

6. The anti-heeling rotating wing in emergency floating as claimed in claim 2, characterized in that: The structure of the slip ring set is as follows: it comprises a supporting cylinder (31), a limiting inner gear ring (32), a left gear bearing (33) and a right gear bearing (34); the supporting cylinder (31) is sleeved on the outside of the rotating shaft (12); the limiting inner gear ring (32), the left gear bearing (33) and the right gear bearing (34) are installed between the supporting cylinder (31) and the rotating shaft (12); the left gear bearing (33), the limiting inner gear ring (32) and the right gear bearing (34) are tightly installed in the supporting cylinder (31) at their end faces in sequence, and all of them are provided with gear rings, which mesh with the gear (13).

7. The anti-heeling rotating wing in emergency floating according to claim 6, characterized in that: The left gear bearing (33) and the right gear bearing (34) are completely identical one-way internal gear bearings.

8. The anti-heeling rotating wing in emergency floating as claimed in claim 6, characterized in that: The outer side of the support cylinder (31) is provided with an axial sliding groove, and there are four axial sliding grooves in total, which are symmetrical about the axis center of the support cylinder (31), and the support cylinder (31) is provided with a positioning hole.

9. The anti-heeling rotating wing in emergency floating according to claim 8, characterized in that: The structure of the oil cylinder assembly is as follows: it comprises an oil cylinder shell (41), an oil cylinder head (42), an oil cylinder slide rail (43), a limit block (44) and a positioning bead (45); the oil cylinder heads (42) are fixed to both ends of the oil cylinder shell (41); the oil cylinder slide rail (43) is fixed inside the oil cylinder shell (41); the oil cylinder slide rail (43) is parallel to the axis of the oil cylinder shell (41); a limit block (44) is arranged on the outer end surface of the oil cylinder head (42); the limit block (44) corresponds to the limit rod (14); a positioning bead (45) is installed on the oil cylinder shell (41); when the supporting cylinder (31) is located in the middle of the oil cylinder, the positioning bead (45) just engages with the positioning hole.

10. A working process of the anti-heeling rotating wing in emergency floating as claimed in claim 9, characterized in that: The process includes: During normal navigation, the rotation of the gear (13) is restricted by the limiting inner gear ring (32) and cannot rotate, maintaining the horizontal wing state; When the boat tilts rightward significantly, the slip ring assembly overcomes the limiting effect of the positioning bead (45) under the action of its own weight and slides to the right until it touches the right cylinder head (42) and stops moving; at this time, the states of the left and right gears (13) are as follows: The left gear (13) is completely out of the slip ring assembly and can rotate freely; The left wing is an unbalanced rudder, which is deflected to a vertical state by hydrodynamic force during a deep dive. When the left wing is turned to a vertical state, the limit rod (14) rotates along with the rotation shaft (12) and is pressed on the limit block (44). Since the rotational inertia of the left wing is relatively large, the limit rod (14) and the limit block (44) generate relatively large squeezing force and friction force, thereby achieving rotation stopping and position locking. The right gear (13) is disengaged from the limiting inner gear ring (32) and completely penetrates into the left gear bearing (33); During a deep dive, the left wing turns vertical and the right wing remains straight, which will generate an anti-heeling hydrodynamic moment, reduce the heel angle of the hull, and facilitate the jettisoning mechanism to implement the jettisoning. When the boat body floats up after dumping its load, the right wing is subjected to downward hydrodynamic force, which pushes the trailing edge to deflect downward. Since the rotation direction of the gear is the same as the direction allowed by the left gear bearing (33), the right wing can rotate. When the right wing rotates to a vertical state, the limit rod (14) and the limit block (44) on the rotating shaft (12) generate extrusion and friction forces, thereby stopping the rotation and locking the position. After that, both left and right wings turned to a vertical state, reducing the vertical area and buoyancy resistance, increasing the buoyancy speed and enhancing the attitude stability.

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