Emergency floating and anti-rolling rotating wing and working process

Abstract

An emergency up-floating anti-rolling rotating wing and working process, comprising a boat body assembly, which comprises a light shell, a pressure-resistant cabin and a ballast distributed in the light shell, a symmetrical mounting base arranged in the light shell, the mounting base comprising a bearing base and a cylinder base, the bearing base supporting a rotating shaft, the cylinder base supporting a cylinder assembly, and a slip ring assembly arranged in the cylinder assembly; a left wing assembly and a right wing assembly symmetrically arranged at both ends of the light shell, the left wing assembly and the right wing assembly being identical in structure and connected with the rotating shaft. When the submersible is severely tilted and dropped due to a serious hull breach, the horizontal wing on one side can be passively rotated to a vertical state to form a righting moment, weaken the tilt and facilitate the implementation of the ballast. When the submersible is up-floating after the ballast, the horizontal wing on the other side is also automatically rotated to a vertical state and locked, reducing the up-floating resistance, improving the up-floating speed and the stability of the posture, and facilitating the protection of the water impact load of the horizontal wing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of emergency up-floating anti-rolling equipment of submersibles, in particular to a rotating wing for anti-rolling in emergency up-floating and a working process. BACKGROUND

[0002] With the deep-sea entry and exploration, the diving depth of submersibles gradually increases. When operating in deep sea, once the pressure hull of the submersible is damaged, a very high inflow speed and a large amount of water inflow will be formed, which will cause the submersible to drop rapidly and produce a large roll. When the roll angle of the hull exceeds the allowable value of the throw mechanism, the gravity throw mechanism cannot throw the load, resulting in a failure of the anti-sinking. Therefore, measures are needed to weaken the roll in emergency anti-sinking.

[0003] The roll adjustment of the submersible is mainly achieved by moving the heavy load or adjusting the water in the water tank, which usually needs to be driven by an electric or hydraulic system. However, when a serious failure such as pressure hull damage occurs, these systems are difficult to ensure availability and cannot effectively bottom out.

[0004] When the pressure hull of the submersible is flooded, especially the upper hull, the metacentric height of the submersible will usually be greatly reduced. In high-speed diving, the water power generated by the horizontal wing greatly enhances the influence on the attitude of the submersible with low metacentric height. When the submersible is thrown into the air, the water in the cabin reduces the positive buoyancy and reduces the up-floating speed. In the up-floating, the vertical resistance of the horizontal wing is large, which further reduces the up-floating speed, which is not conducive to rapid escape.

[0005] From the above analysis, it can be seen that the fixed horizontal wing is not conducive to the improvement of the emergency anti-sinking ability and needs to be improved. For the rotating device of the horizontal wing, the publication number CN106394838B discloses a device for adjusting the up-floating and down-floating speed of the submersible, which discloses a scheme for adjusting the up-floating and down-floating speed by driving the horizontal wing to switch between horizontal and vertical states through an oil cylinder crank mechanism. However, this scheme and similar schemes will need power, the structure is complex, and the anti-interference ability is weak. Since the structural safety of the pressure hull is the focus of submersible design, the probability of sinking after the pressure hull is damaged is small.

[0006] In order to equip the horizontal wing with a rudder for anti-rolling in emergency anti-sinking, it is extremely likely to interfere with the existing horizontal rudder, increase the weight, occupy the cabin space, and increase the cost, resulting in a very low cost-effectiveness. Therefore, there is an urgent need for a horizontal wing rotating device that is self-contained, has strong anti-interference ability, and has low burden, which can provide anti-rolling and drag reduction effects for emergency up-floating. SUMMARY

[0007] The applicant provides an emergency floating anti-rolling rotating wing and a working process in the light of the defects in the prior production technology, so that the problems in the prior art can be effectively solved, and the working reliability is greatly improved.

[0008] The technical scheme adopted by the application is as follows:

[0009] An emergency floating anti-rolling rotating wing comprises a boat body assembly, the boat body assembly comprises a light shell, pressure-resistant cabins and throw-off objects are distributed in the light shell, symmetrical mounting bases are arranged in the light shell, the mounting bases comprise bearing bases and oil cylinder bases, the bearing bases support a rotating shaft, the oil cylinder bases support an oil cylinder assembly, and a slip ring set is arranged in the oil cylinder assembly; left wing assemblies and right wing assemblies are symmetrically arranged at two ends of the light shell, the left wing assemblies and the right wing assemblies are the same in structure and are connected with the rotating shaft.

[0010] Further technical schemes are as follows:

[0011] The left wing assembly comprises a wing plate, a rotating shaft, a gear and a limiting rod, the left end of the rotating shaft is fixed on the right end face of the wing plate perpendicularly, the right end of the rotating shaft is provided with the gear, and the limiting rod is arranged on the rotating shaft and 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 limiting rods.

[0015] The structure of the slip ring set comprises a supporting cylinder, a limiting inner tooth ring, a left gear bearing and a right gear bearing, the supporting cylinder is sleeved on the outside of the rotating shaft, the limiting inner tooth ring, the left gear bearing and the right gear bearing are arranged between the supporting cylinder and the rotating shaft, the left gear bearing, the limiting inner tooth ring and the right gear bearing are sequentially and tightly arranged at the end face of the supporting cylinder, and the left gear bearing, the limiting inner tooth ring and the right gear bearing are all provided with gear rings, and the gear rings are engaged with the gear.

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

[0017] The supporting cylinder is provided with four axial sliding grooves which are symmetrically arranged about the axis center of the supporting cylinder, and the supporting cylinder is provided with positioning holes.

[0018] The structure of the oil cylinder assembly comprises an oil cylinder barrel shell, an oil cylinder end cover, an oil cylinder slide rail, a limiting block and a positioning bead, the oil cylinder end cover is fixed at both ends of the oil cylinder barrel shell, the oil cylinder slide rail is fixed in the oil cylinder barrel shell and is parallel to the axis of the oil cylinder barrel shell, the limiting block is arranged on the outer end surface of the oil cylinder end cover and corresponds to the limiting rod, and the positioning bead is installed on the oil cylinder barrel shell and is engaged with the positioning hole when the supporting cylinder is located at the middle part of the oil cylinder.

[0019] The working process of the emergency up-floating and anti-rolling rotating wing comprises the following processes:

[0020] During normal navigation, the rotation of the gear is limited by the limiting inner tooth ring and cannot rotate, thereby maintaining the horizontal wing state.

[0021] When the hull is greatly right-rolled, the slide ring set slides to the right under the action of its own gravity and overcomes the limiting action of the positioning bead, and stops running after colliding with the right oil cylinder end cover; at this time, the states of the gears on the left and right sides are as follows:

[0022] The left gear is completely exposed from the slide ring set and can rotate freely.

[0023] The left wing is an unbalanced rudder, which is deflected to the vertical state under the action of water power in deep diving, and when the left wing is turned to the vertical state, the limiting rod follows the rotation of the rotating shaft and is pressed on the limiting block; due to the large rotational inertia of the left wing, a large pressing force and friction force are generated between the limiting rod and the limiting block, so that the rotation is stopped and the position is locked.

[0024] The right gear is completely inserted into the left gear bearing and is separated from the limiting inner tooth ring.

[0025] In deep diving, the left wing is turned to the vertical state, and the right wing maintains the flat state, which generates an anti-rolling water power torque to reduce the roll angle of the hull and facilitate the implementation of the load throwing mechanism.

[0026] When the hull is thrown after being loaded, the right wing is deflected downward by the water power from top to bottom, and since the rotation direction of the gear at this time is the same as the allowable direction of the left gear bearing, the right wing can rotate; when the right wing is turned to the vertical state, the limiting rod on the rotating shaft generates a pressing force and a friction force with the limiting block, so that the rotation is stopped and the position is locked.

[0027] Thereafter, the left and right wings are both turned to the vertical state, which reduces the vertical area and the up-floating resistance, improves the up-floating speed and enhances the attitude stability.

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

[0029] The application has the advantages of compact structure, reasonable design, convenient operation, etc. Through the cooperation between the symmetrical horizontal wings, rotating shafts and limiting oil cylinders, the unilateral horizontal wing can be converted to vertical state without power when the submersible is seriously tilted and dropped due to the water entering the cabin, so as to form a righting moment, weaken the tilt and facilitate the implementation of the load rejection. When the load rejection is converted to floating, the horizontal wing on the other side is also automatically converted to vertical state and locked, so as to reduce the floating resistance, improve the floating speed and the stability of the posture, and facilitate the protection of the water impact load of the horizontal wing. The device is used as a stabilizing wing in normal times, does not interfere with the original function, has small changes to the equipment, and is convenient for forming the hidden anti-tilting capacity reserve.

[0030] The application has the advantages of no power, simple structure, light weight, high reliability, etc. The left and right horizontal wings share a set of devices, the tilt angle is convenient to adjust, and the new device and use method are provided for the performance improvement of the emergency floating.

[0031] The application expands the function of the stabilizing wing, and can rotate the unilateral horizontal wing by using the water flow force without power in the case of large tilt and unable to reject the load, so as to generate a righting moment, reduce the tilt angle and facilitate the implementation of the load rejection.

[0032] In the load rejection floating, the horizontal wings on both sides are converted to vertical state, the unbalanced force of the left and right wings is eliminated, the floating resistance is reduced, and the stability of the posture in the floating process is improved.

[0033] The tilt response angle is convenient to adjust, and the application range is wide.

[0034] The left and right rotating shafts can share a set of devices, so that the volume and weight are saved. DETAILED DESCRIPTION OF DRAWINGS

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

[0036] Figure 2 It is a diagram of the large tilt and drop of the right cabin of the submersible of the application.

[0037] Figure 3 It is a process diagram of the left wing rotation for weakening the tilt and assisting the load rejection of the application.

[0038] Figure 4 It is a process diagram of the right wing rotation in the load rejection floating of the application.

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

[0040] Figure 6 It is an internal structure schematic diagram of the oil cylinder assembly of the application (half-section diagram of the left wing rotation process in large tilt).

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

[0042] Among them: 11. Wing plate; 12. Rotating shaft; 13. Gear; 14. Limiting rod;

[0043] 21. Bearing base; 22. Hydraulic cylinder base;

[0044] 31. Support cylinder; 32. Limiting internal gear ring; 33. Left gear bearing; 34. Right gear bearing;

[0045] 41. Cylinder housing; 42. Cylinder end cap; 43. Cylinder slide rail; 44. Limit block; 45. Positioning bead;

[0046] 51. Lightweight outer shell; 52. Pressure chamber; 53. Jetpack. Detailed Implementation

[0047] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0048] like Figures 1-7 As shown, the anti-roll rotating wing in the emergency surfacing of this embodiment includes a hull assembly, which includes a lightweight outer shell 51. Inside the lightweight outer shell 51, there are pressure chambers 52 and jettisonable cargo 53. Symmetrical mounting bases are arranged inside the lightweight outer shell 51. The mounting bases include bearing bases 21 and cylinder bases 22. The bearing bases 21 support and mount the rotating shaft 12, and the cylinder bases 22 support and mount the cylinder assembly. The cylinder assembly has a slip ring kit installed inside. A left wing assembly and a right wing assembly are symmetrically arranged at both ends of the lightweight 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 includes 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. The gear 13 is installed on the right end of the rotating shaft 12. At the same time, the limiting rod 14 is installed on the rotating shaft 12 and is located on the outer end face of the hydraulic cylinder assembly.

[0050] Wing 11 is an unbalanced rudder.

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

[0052] Limiting rod 14 is a rigid cylindrical rod, and there are two of them.

[0053] The slip ring assembly has the following structure: it includes 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 fitted around the outside of the rotating shaft 12. The limiting internal gear ring 32, the left gear bearing 33, and the 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 with their end faces tightly attached inside the support cylinder 31, and each of them has a gear ring. The gear ring meshes with the gear 13.

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

[0055] The support cylinder 31 is provided with four axial sliding grooves which are centrally symmetric about the axis of the support cylinder 31, and the support cylinder 31 is provided with a positioning hole.

[0056] The structure of the oil cylinder assembly is as follows: the oil cylinder barrel shell 41 is provided with the oil cylinder end cover 42 at both ends, the oil cylinder barrel shell 41 is internally provided with the oil cylinder sliding rail 43 which is parallel to the axis of the oil cylinder barrel shell 41, the outer end surface of the oil cylinder end cover 42 is provided with the limiting block 44 which corresponds to the limiting rod 14, and the oil cylinder barrel shell 41 is provided with the positioning bead 45 which is engaged with the positioning hole when the support cylinder 31 is located in the middle part of the oil cylinder.

[0057] The specific structure and functions of the rotating wing of the emergency floating and medium anti-rolling according to the application are as follows:

[0058] The main components include the left wing assembly, the right wing assembly, the limiting oil cylinder and the mounting base.

[0059] The limiting oil cylinder is composed of the oil cylinder assembly and the slip ring sleeve, and the left wing assembly and the right wing assembly are symmetrically mounted on the two sides of the boat body assembly.

[0060] (I) The left wing assembly:

[0061] The main components include the wing plate 11, the rotating shaft 12, the gear 13 and the limiting rod 14.

[0062] 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 boat body in a horizontal state and is perpendicular to the median longitudinal section.

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

[0064] The limiting rod 14 is a rigid cylindrical rod, and there are two limiting rods 14 which are vertically fixed on the rotating shaft 12 and are centrally symmetric about the axis of the rotating shaft 12. The axis of the limiting rod 14 is located in the symmetric plane of the wing plate 11.

[0065] (II) The mounting base:

[0066] The main components include the bearing base 21 and the oil cylinder base 22.

[0067] The bearing base 21 is fixed on the hull to support the rotating shaft 12.

[0068] The oil cylinder base 22 is fixed below the oil cylinder to fix the oil cylinder.

[0069] (Three) slip ring assembly:

[0070] It mainly includes a supporting cylinder 31, a limiting inner tooth ring 32, a left gear bearing 33 and a right gear bearing 34.

[0071] The supporting cylinder 31 has four axial sliding grooves on the outer side, which are symmetric about the axis center of the supporting cylinder 31. The supporting cylinder 31 has a positioning hole. When the supporting cylinder 31 is located in the middle part of the oil cylinder, the positioning bead 45 is just engaged with the positioning hole.

[0072] The limiting inner tooth ring 32 has a gear ring on the inner ring, which is installed in the axial middle position in the supporting cylinder 31.

[0073] The left gear bearing 33 and the right gear bearing 34 are the same one-way inner tooth gear bearings. From the right side of the hull, they can only rotate clockwise.

[0074] The left gear bearing 33, the limiting inner tooth ring 32 and the right gear bearing 34 are installed in the supporting cylinder 31 in sequence, and the inner ring gear rings of the three can be engaged with the gear 13 for transmission.

[0075] The slip ring assembly is installed on the slide rail in the oil cylinder through the sliding groove on the outer side.

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

[0077] (Four) 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 limiting block 44 and a positioning bead 45.

[0079] The oil cylinder barrel shell 41 is a rigid cylindrical shell with a threaded hole for installing the positioning bead 45.

[0080] The oil cylinder head 42 is fixed on the end face of the oil cylinder barrel shell 41 and has a mounting hole for the rotating shaft 12.

[0081] The oil cylinder slide rail 43 is a long slide rail with a ball and is fixed on the inner wall surface of the oil cylinder barrel shell 41 and parallel to the axis of the oil cylinder barrel shell 41.

[0082] The limiting block 44 is a rubber block fixed on the outer surface of the oil cylinder head 42. When the limiting rod 14 is rotated to the vertical state, the limiting rod 14 will press the limiting block 44 to generate a friction locking force.

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

[0084] (V) hull assembly:

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

[0086] Satisfy the matching relationship:

[0087] The oil cylinder barrel 41, the rotating shaft 12, the gear 13, the support cylinder 31, the limiting inner tooth 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 41, the support cylinder 31, the limiting inner tooth 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 of the left and right wings extend into the oil cylinder, and the gears 13 have a gap between the end faces.

[0090] When initially installed, the slip ring assembly is located at the middle position of the oil cylinder, and the gears of the left and right wings are engaged with the limiting inner tooth ring 32 and partially engaged with the left gear bearing 33 and the right gear bearing 34, respectively.

[0091] The response roll angle of the device is defined as the minimum hull roll angle at which the slip ring assembly overcomes the sliding of the positioning bead 45. The response roll angle of the device is the same as the maximum allowable roll angle of the throw load mechanism.

[0092] In actual work process:

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

[0094] When the submersible encounters one-sided cabin flooding in deep sea, the roll angle exceeds the allowable value of the throw load mechanism, and the throw load cannot be implemented. Since the response roll angle of the device is the same as the maximum allowable angle of the throw load mechanism, the large roll of the hull triggers the work of the device. Since the device is symmetrical left and right, the left and right roll principles are the same, and only the right roll is described in this paper.

[0095] When the hull is right roll, the slip ring assembly slides to the right under the action of its own gravity, overcoming the limiting effect of the positioning bead 45, and stops moving after touching the right cylinder head 42. At this time, the state of the left and right gears 13 is as follows:

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

[0097] The left wing is an unbalanced rudder, which is deflected to the vertical state under the action of water power in deep diving. When the left wing turns to the vertical state, the limiting rod 14 follows the rotation of the rotating shaft 12 and is pressed on the limiting block 44. Because the left wing has large rotational inertia, the limiting rod 14 and the limiting block 44 generate large pressing force and friction, realizing the stop of rotation and the locking of position.

[0098] b) The right gear 13 is completely deep into the left bearing gear from the limiting inner tooth ring 32.

[0099] The right wing is an unbalanced rudder, and the rear aspect of the rotating shaft 12 is larger than the front. In deep diving, the water flow will push the trailing edge of the right wing upward. However, the right gear is engaged in the left gear bearing 33, which cannot rotate counterclockwise due to the one-way bearing of the left gear bearing 33. The right wing cannot rotate and can only maintain a horizontal state of diving.

[0100] In deep diving, the left wing turns to the vertical state, and the right wing maintains a flat state, which generates an anti-roll water power moment, reduces the roll angle of the hull, and facilitates the implementation of the load throwing mechanism.

[0101] When the hull is thrown after floating, the right wing is subjected to water power from top to bottom, pushing the trailing edge downward. Because the direction of rotation 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 pressing and friction, realizing the stop of rotation and the locking of position.

[0102] After that, the left and right wings are turned to the vertical state, reducing the vertical area and the upward floating resistance, improving the upward floating speed, and enhancing the attitude stability.

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

Claims

1. An emergency flotation, anti-rolling, rotating wing characterized by: The application relates to a boat body assembly which comprises a light shell (51), a pressure-resistant cabin (52) and a ballast (53) arranged in the light shell (51), a symmetrical mounting base arranged in the light shell (51), a bearing base (21) of the mounting base supporting a rotating shaft (12), and a cylinder base (22) of the mounting base supporting a cylinder assembly, and a slip ring assembly arranged in the cylinder assembly. Left and right wing assemblies are symmetrically arranged at two ends of the light shell (51), the left and right wing assemblies are identical in structure and are connected with the rotating shaft (12); the structure of the left wing assembly is that the left wing assembly comprises a wing plate (11), the rotating shaft (12), a gear (13) and a limiting rod (14), the left end of the rotating shaft (12) is vertically fixed on the right end surface of the wing plate (11), the right end of the rotating shaft (12) is provided with the gear (13), and the limiting rod (14) is arranged on the rotating shaft (12) and located at the outer end surface of the cylinder assembly. The structure of the slip ring assembly is that the slip ring assembly comprises a supporting cylinder (31), a limiting inner tooth 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 tooth ring (32), the left gear bearing (33) and the right gear bearing (34) are arranged between the supporting cylinder (31) and the rotating shaft (12), the left gear bearing (33), the limiting inner tooth ring (32) and the right gear bearing (34) are sequentially and tightly arranged on the inside of the supporting cylinder (31) and are all provided with gear rings which are engaged with the gear (13). The supporting cylinder (31) is provided with four axial sliding grooves which are symmetrically arranged about the axis center of the supporting cylinder (31), and the supporting cylinder (31) is provided with a positioning hole. The structure of the cylinder assembly is that the cylinder assembly comprises a cylinder shell (41), a cylinder head (42), a cylinder slide rail (43), a limiting block (44) and a positioning bead (45), the two ends of the cylinder shell (41) are respectively fixed with the cylinder head (42), the inside of the cylinder shell (41) is fixed with the cylinder slide rail (43), the cylinder slide rail (43) is parallel to the axis of the cylinder shell (41), the outer end surface of the cylinder head (42) is arranged with the limiting block (44) which is corresponding to the limiting rod (14), the cylinder shell (41) is arranged with the positioning bead (45), and when the supporting cylinder (31) is located at the middle part of the cylinder, the positioning bead (45) is just engaged with the positioning hole.

2. A dynamically balanced flipper for an emergency flotation and anti-rolling according to claim 1, characterized in that: The wing plate (11) is an unbalanced rudder.

3. A dynamically balanced flipper for emergency flotation and roll resistance according to claim 1, characterized in that: The rotating shaft (12) is a rigid cylindrical shaft.

4. A dynamically balanced flipper for emergency flotation and roll resistance according to claim 1, characterized in that: The limiting rod (14) is a rigid cylindrical rod and there are two limiting rods.

5. A dynamically balanced flipper for emergency flotation and roll resistance according to claim 1, characterized in that: The left gear bearing (33) and the right gear bearing (34) are completely identical one-way inner gear bearings.

6. The operation of the anti-rolling, turning foil of claim 1 in an emergency floatation situation, characterized by: The application further discloses a working process of the boat body assembly. During normal navigation, the rotation of the gear (13) is limited by the limiting inner tooth ring (32) and cannot rotate, so that the horizontal wing state is maintained. When the hull is right heeling, the slip ring assembly slides to the right under the action of its own gravity, overcoming the limiting action of the positioning bead (45), and stops running after touching the right cylinder head (42). At this time, the state of the left and right gears (13) is as follows: The left gear (13) is completely exposed from the slip ring assembly and can rotate freely; The left wing is an unbalanced rudder, which is deflected to the vertical state under the action of water power in deep diving. When the left wing turns to the vertical state, the limiting rod (14) follows the rotation of the rotating shaft (12) and is pressed on the limiting block (44). Due to the large moment of inertia of the left wing, the limiting rod (14) and the limiting block (44) generate a large pressing force and friction, which realizes the stop of rotation and the locking of position. The right gear (13) is completely immersed in the left gear bearing (33) and is separated from the limiting inner gear ring (32); In deep diving, the left wing turns to the vertical state, and the right wing maintains a flat state, which generates an anti-heeling water power moment, reduces the heeling angle of the hull, and facilitates the implementation of the load-throwing mechanism. When the hull is thrown and turns to float, the right wing is pushed to deflect downward by the water power from top to bottom. Since the rotating 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 pressing and friction, which realizes the stop of rotation and the locking of position. After that, both the left and right wings turn to the vertical state, reducing the vertical area and the upward resistance, improving the upward speed, and enhancing the attitude stability.

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