Self-adaptive deformation coordination structure for deep sea equipment

Abstract

The invention relates to a self-adaptive deformation coordination structure for deep sea equipment, and belongs to the technical field of deep sea equipment. Through radial elastic connection and longitudinal rigid linkage design of a pressure-resistant structure and an external frame, the problem of structural deformation and discordance in a deep-sea high-pressure environment is solved; the spring assembly is used for compensating radial shrinkage deformation, the rack and gear transmission system is combined to convert radial displacement of the pressure-resistant structure into rotary motion of the threaded sleeve, the two-way threaded screw is driven to stretch out and draw back synchronously, and the longitudinal distance of the frame is made to be matched with longitudinal deformation of the pressure-resistant structure in a self-adaptive mode. Real-time coordination of radial deformation and longitudinal deformation is achieved through mechanical transmission, and the structural safety and environmental adaptability of deep sea equipment are effectively improved while the overall rigidity is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of deep - sea equipment, and particularly to an adaptive deformation coordination structure for deep - sea equipment. Background Art

[0002] With the development of deep - sea equipment technology, large - scale deep - sea equipment structural systems have emerged. The technical feature is that the structural stiffness needs to be ensured. Therefore, a rigid connection is generally adopted between the pressure - resistant structure and the frame structure.

[0003] In related technologies, in order to cope with the radial and longitudinal shrinkage deformations of the cylindrical - shell pressure - resistant structure under the action of hydrostatic external pressure in the deep - sea environment, especially when the radial deformation reaches the order of 10 mm and the longitudinal cumulative deformation is as high as the order of 100 mm, the existing treatment method is to change the radial connection between the pressure - resistant structures from a rigid connection to an elastic connection in order to solve the problem of inconsistent radial deformation.

[0004] However, the above - mentioned elastic connection method can only solve the problem of inconsistent radial deformation, and there is no effective solution to the most prominent problem of inconsistent longitudinal deformation. Summary of the Invention

[0005] Based on this, in view of the above problems, it is necessary to provide an adaptive deformation coordination structure for deep - sea equipment, which adopts a combined connection method of longitudinal threaded connection and radial elastic connection between the deep - sea pressure - resistant structure assembly and the frame structure assembly, so as to solve the problem of inconsistent structural deformation and ensure the structural stiffness.

[0006] An adaptive deformation coordination structure for deep - sea equipment includes:

[0007] A pressure - resistant structure, a frame structure sleeved outside the pressure - resistant structure, a rack - and - pinion assembly connecting the pressure - resistant structure and the frame structure, and a spring assembly arranged between the pressure - resistant structure and the frame structure;

[0008] The pressure - resistant structure and the frame structure are radially elastically connected through the spring assembly, and the radial deformation of the pressure - resistant structure is converted into the longitudinal deformation of the frame structure through the rack - and - pinion assembly to achieve longitudinal rigid connection;

[0009] The frame structure includes a first screw rod, a second screw rod and a threaded sleeve arranged longitudinally. The first screw rod and the second screw rod are respectively in threaded engagement with the left - hand and right - hand threads of the threaded sleeve;

[0010] The threaded sleeve is driven to rotate through the rack - and - pinion assembly, so that the first screw rod and the second screw rod are synchronously screwed in or out to adjust the longitudinal distance of the frame structure.

[0011] In one embodiment, the pressure-resistant structure includes a spherical head, a cylindrical shell, and an annular rib. The spherical heads are welded to both ends of the cylindrical shell, and the annular ribs are distributed longitudinally along the cylindrical shell and are welded and fixed.

[0012] In one embodiment, the frame structure further includes a first solid rib plate, a second solid rib plate, a third solid rib plate, and a bearing. The first solid rib plate and the third solid rib plate are rigidly connected to the first screw rod and the second screw rod respectively. The second solid rib plate mounts the threaded sleeve through the bearing, and the first screw rod, the second screw rod, and the threaded sleeve form a longitudinal load-bearing member.

[0013] In one embodiment, the rack and pinion assembly includes: a rack fixed to the outer surface of the cylindrical shell, a driving gear meshing with the rack, a planetary gear carrier, planetary gears, a sun gear, and a driven gear. The planetary gear includes a planetary gear large gear and a planetary gear small gear connected coaxially. The planetary gear large gear meshes with the sun gear, and the planetary gear small gear meshes with a gear ring fixed to the second solid rib plate. The driven gear meshes with the teeth of the threaded sleeve to convert the radial displacement of the rack into the rotational motion of the threaded sleeve.

[0014] In one embodiment, the spring assembly includes a spring, a cylinder, and a cylinder sleeve. The cylinder sleeve is fixed to the outer surface of the cylindrical shell of the pressure-resistant structure. The cylinder is fixed to the center of the solid rib plate of the frame structure and is inserted into the cylinder sleeve for slidable connection. The spring is sleeved between the cylinder and the cylinder sleeve, and both ends are respectively abutted between the cylindrical shell and the solid rib plate.

[0015] In one embodiment, the inner walls at both ends of the threaded sleeve are respectively provided with left-handed threads and right-handed threads, and the ends of the first screw rod and the second screw rod are respectively provided with corresponding left-handed external threads and right-handed external threads.

[0016] In one embodiment, the outer wall of the middle section of the threaded sleeve is provided with teeth, and the teeth mesh with the driven gear to drive the threaded sleeve to rotate.

[0017] In one embodiment, the transmission ratio between the driving gear and the driven gear is used to proportionally amplify the radial deformation amount of the pressure-resistant structure into the longitudinal deformation amount of the frame structure.

[0018] In one embodiment, the spring is in a compressed pre-tightened state during installation to provide an initial pre-tightening force for radial elastic connection.

[0019] In one embodiment, there are multiple groups of the longitudinal load-bearing members, which are distributed circumferentially along the pressure-resistant structure. Each group of longitudinal load-bearing members includes a first screw rod, a second screw rod, a threaded sleeve, and a bearing.

[0020] The above-mentioned adaptive deformation coordination structure for deep-sea equipment realizes radial elastic compensation through spring components, and converts radial contraction into longitudinal synchronous expansion and contraction in combination with a rack-pinion-thread transmission system, thereby solving the problem of incoordination between radial and longitudinal deformations, and breaking through the limitation of existing technologies that only solve deformation in one direction.

[0021] This application also has the following advantages:

[0022] (1) This application adopts a planetary gear set and a bidirectional threaded sleeve linkage design, which accurately amplifies the tiny radial displacement into a large longitudinal range adjustment through the transmission ratio, ensuring that the pressure-resistant structure and the longitudinal deformation of the frame are strictly matched;

[0023] (2) The pre-tightening installation of the spring assembly of the present application provides initial radial stiffness, and the rigid connection between the threaded sleeve and the left and right screws maintains longitudinal structural stability, taking into account the compressive resistance and deformation adaptability under deep-sea high pressure;

[0024] (3) The threaded sleeve of the present application rotates to drive the twin screws to extend and retract synchronously, and multiple longitudinal bearing units evenly distributed circumferentially ensure coordinated and uniform deformation, avoid local stress concentration, and improve the overall reliability of deep-sea equipment;

[0025] (4) In the planetary gear of the present application, the large gear and the small gear are integrated and coaxially designed, and cooperate with the threaded sleeve supported by the bearing to achieve high torque transmission efficiency and low wear operation, and adapt to the long-term deep-sea high-pressure corrosion environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional view of the present invention.

[0027] Figure 2 It is a plan view of the present invention.

[0028] Figure 3 for Figure 2 A partial enlarged view of area A in the middle.

[0029] Figure 4 It is a longitudinal sectional view of the pressure-resistant structure of the present invention.

[0030] Figure 5 It is a three-dimensional view of the pressure-resistant structure of the present invention.

[0031] Figure 6 for Figure 5 A partial enlarged view of area B in the middle.

[0032] Figure 7 It is a longitudinal sectional view of the threaded sleeve of the present invention.

[0033] Figure 8 It is a plan view of the threaded sleeve of the present invention.

[0034] Figure 9 Is a three-dimensional exploded view of a rack and pinion assembly.

[0035] Figure 10 Is a three-dimensional exploded view of the rack and pinion assembly from another perspective.

[0036] Figure 11 Is a three-dimensional view of the planet gear carrier of the present invention.

[0037] Figure 12 Is a three-dimensional exploded view of the spring assembly of the present invention.

[0038] Wherein: 1, pressure-resistant structure; 2, frame structure; 3, rack and pinion assembly; 4, spring assembly;

[0039] 11, spherical head; 12, cylindrical shell; 13, annular rib;

[0040] 21, first solid rib plate; 22, first screw; 23, threaded sleeve; 24, bearing; 25, second solid rib plate; 26, second screw; 27, third solid rib plate;

[0041] 231, threaded sleeve body; 232, left-handed thread; 233, right-handed thread; 234, tooth;

[0042] 31, rack; 32, driving gear; 33, ring gear; 34, planet gear; 35, planet gear carrier; 36, sun gear; 37, driven gear;

[0043] 341, large planet gear; 342, small planet gear;

[0044] 351, planet gear carrier body; 352, first gear shaft; 353, second gear shaft;

[0045] 41, spring; 42, cylinder; 43, cylindrical sleeve. Detailed implementation manners

[0046] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0048] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In the present application, unless otherwise clearly defined and limited, if there are terms such as "install", "connect", "join", "fix", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0050] In the present application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0051] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0052] Referring to Figures 1 to 12 , which shows a schematic structural diagram of an adaptive deformation coordination structure for deep-sea equipment in an embodiment of the present application. The adaptive deformation coordination structure for deep-sea equipment provided by an embodiment of the present application includes a pressure-resistant structure 1, a frame structure 2, a rack and pinion assembly 3 and a spring assembly 4.

[0053] In some embodiments, the pressure-resistant structure 1 is composed of a spherical head 11, a cylindrical shell 12 and an annular rib 13 welded together. The spherical head 11 is fixed to both ends of the cylindrical shell 12 by welding, and the annular rib 13 is longitudinally distributed along the outer surface of the cylindrical shell 12 and welded thereto to enhance the compressive stiffness of the pressure-resistant structure 1.

[0054] In some embodiments, the frame structure 2 is integrally sleeved outside the pressure-resistant structure 1 and includes a first solid rib plate 21, a second solid rib plate 25, a third solid rib plate 27, a first screw 22, a second screw 26, a threaded sleeve 23 and a bearing 24; the first solid rib plate 21, the second solid rib plate 25 and the third solid rib plate 27 are arranged horizontally and in parallel, and a circular hole with an annular reinforcing rib is provided in the center to sleeve the pressure-resistant structure 1. The circular hole of the second solid rib plate 25 is circumferentially provided with small circular holes for installing a gear ring 33 and a bearing 24.

[0055] In some embodiments, one end of the first screw 22 is rigidly connected to the first solid rib plate 21, and the other end is provided with a left-handed trapezoidal external thread; one end of the second screw 26 is rigidly connected to the third solid rib plate 27, and the other end is provided with a right-handed trapezoidal external thread; the threaded sleeve 23 includes a threaded sleeve body 231, and the inner walls of both ends are respectively provided with a left-handed thread 232 and a right-handed thread 233, and the outer wall of the middle section is surrounded by teeth 234; the first screw 22 and the second screw 26 are respectively screwed into the left-handed thread 232 and the right-handed thread 233 of the threaded sleeve 23, and the threaded sleeve 23 is installed on the second solid rib plate 25 through a bearing 24 to form a longitudinal load-bearing member; multiple groups of longitudinal load-bearing members are distributed circumferentially along the pressure-resistant structure 1 to ensure the uniformity of deformation coordination.

[0056] In some embodiments, the rack and pinion assembly 3 includes a rack 31 fixed to the outer surface of the cylindrical shell 12, a driving gear 32 meshing with the rack 31, a planetary gear carrier 35, planetary gears 34, a sun gear 36 and a driven gear 37;

[0057] Among them, the planetary gear 34 is composed of a large planetary gear 341 and a small planetary gear 342 connected coaxially;

[0058] The planetary gear carrier 35 includes a planetary gear carrier main body 351, a first gear shaft 352 and a second gear shaft 353. The driving gear 32 is fixed to the first gear shaft 352, and the planetary gear 34 is installed on the planetary gear carrier 35 through the second gear shaft 353;

[0059] The small planetary gear 342 meshes with the tooth ring 33 fixed to the second solid rib plate 25, the large planetary gear 341 meshes with the sun gear 36, the sun gear 36 is connected to the driven gear 37 through a gear shaft, and the driven gear 37 meshes with the teeth 234 of the threaded sleeve 23;

[0060] When the pressure-resistant structure 1 radially contracts under pressure, the rack 31 drives the driving gear 32 to rotate, transmits the torque to the driven gear 37 through the planetary gear set, and finally drives the threaded sleeve 23 to rotate.

[0061] In some embodiments, the spring assembly 4 includes a spring 41, a cylinder 42 and a cylinder sleeve 43; the cylinder sleeve 43 is fixed to the outer surface of the cylinder shell 12, the cylinder 42 is fixed to the annular reinforcing rib of the central circular hole of the solid rib plate, and is inserted into the cylinder sleeve 43 for slidable connection;

[0062] The spring 41 is sleeved between the cylinder 42 and the cylinder sleeve 43, and abuts against the cylinder shell 12 and the solid rib plate at both ends respectively, and is in a compressed pre-tightened state during installation, providing radial elastic compensation ability.

[0063] When the pressure-resistant structure 1 radially contracts, the spring 41 elongates; at the same time, the rack and pinion assembly 3 converts the radial displacement into the rotation of the threaded sleeve 23, drives the first screw rod 22 and the second screw rod 26 to synchronously screw into the threaded sleeve 23, and shortens the distance between the first solid rib plate 21 and the third solid rib plate 27 to achieve longitudinal deformation matching.

[0064] In actual work, the working process of this application is as follows:

[0065] Before implementing this application, it is necessary to first complete the manufacture and installation of each component. After installation, the spring 41 is in a compressed pre-tightened state;

[0066] During the diving process, the pressure-resistant structure 1 undergoes shrinkage deformation under the action of seawater pressure. Affected by the radial shrinkage deformation of the pressure-resistant structure 1, the rack 31 begins to move towards the center of the pressure-resistant structure 1, and successively drives the driving gear 32, the planetary gear 34, the sun gear 36, the driven gear 37 and the threaded sleeve 23 to rotate;

[0067] Please refer to Figure 9From this perspective, the driving gear 32, the sun gear 36 and the driven gear 37 rotate counterclockwise, while the planetary gear 34 and the threaded sleeve 23 rotate clockwise. As the threaded sleeve 23 rotates, the first screw 22 and the second screw 26 are screwed into the threaded sleeve 23 relatively, so that the longitudinal distance between the first solid rib plate 21 and the third solid rib plate 27 is shortened, and the shortening amount is equal to the longitudinal contraction amount of the corresponding part of the pressure-resistant structure 1, thus realizing the longitudinal deformation coordination between the pressure-resistant structure 1 and the frame structure 2.

[0068] In the radial direction, the radial deformation of the pressure-resistant structure 1 is compensated by the spring 41, thus realizing the radial deformation coordination between the pressure-resistant structure 1 and the frame structure 2.

[0069] In the above process, the radial deformation of the pressure-resistant structure 1 is the input, and the longitudinal deformation of the frame structure 2 is the output. The transmission and conversion are carried out through the gear-rack assembly 3 in the middle. Therefore, the transmission ratio of the gear assembly needs to be reasonably designed to ensure the consistency of the longitudinal deformation between the frame structure 2 and the pressure-resistant structure 1.

[0070] During the floating process, the deformation of the pressure-resistant structure 1 and the frame structure 2 and the transmission process of the rack and gear assembly 3 are opposite to those during the diving process, and the implementation process will not be elaborated here.

[0071] The ability of the structure to coordinate longitudinal deformation is the core and key of the present invention, and its verification process is as follows:

[0072] Table 1 Main parameter table of components in a specific embodiment of the present application

[0073]

[0074] Referring to the above table, in this embodiment, the pressure-resistant structure 1 is designed according to the maximum diving depth of 3000 meters. Through finite element calculation and analysis based on the parameters in Table 1 above, it is obtained that the radial contraction deformation amount of the cylindrical shell 12 at the maximum diving depth is about det_R1 = 7mm, and the longitudinal contraction amount is about det_L1 = 68.5mm. Through linear conversion, the longitudinal contraction amount of the pressure-resistant structure 1 corresponding to the first solid rib plate 21 and the third solid rib plate 27 is det_L1×L3 / L1 = 59.4mm.

[0075] Assuming that the driving gear 32 is the input end and the threaded sleeve 23 is the output end, the transmission ratio between the input end and the output end is:

[0076] 1:(z1 - z2) / z2×(z2 + z3) / z4×z5 / z6 = 1:80

[0077] According to the radial contraction amount of the cylindrical shell 12, the rotation angle of the input end is calculated as:

[0078] det_R1 / R2×180° / PI = 6.685°;

[0079] Then the rotation angle of the output end is 6.685°×80=534.8°.

[0080] According to the pitch p and the rotation angle of the threaded sleeve 23 calculated in the above steps, the shortening amount of the longitudinal spacing between the first solid rib 21 and the third solid rib 27 is 2×534.8° / 360°×20mm=59.4mm, which is equal to the longitudinal shrinkage amount of the pressure-resistant structure 1 calculated in the above steps, indicating that the pressure-resistant structure 1 and the frame structure 2 are consistent in longitudinal deformation, that is, they have the ability to coordinate longitudinal deformation.

[0081] In summary, the present application realizes radial elastic compensation through the spring assembly 4, and combines with the rack and pinion assembly 3 to accurately convert tiny radial deformation into a large-range longitudinal adjustment, thereby simultaneously solving the problem of incoordination between radial and longitudinal deformations; in addition, the rigid connection between the threaded sleeve 23 and the first screw 22 and the second screw 26 on both sides maintains longitudinal stability.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An adaptive deformation coordination structure for deep-sea equipment, characterized in that: include: A pressure-resistant structure (1), a frame structure (2) mounted outside the pressure-resistant structure (1), a rack and pinion assembly (3) connecting the pressure-resistant structure (1) and the frame structure (2), and a spring assembly (4) arranged between the pressure-resistant structure (1) and the frame structure (2); The pressure-resistant structure (1) and the frame structure (2) are connected in a radial elastic manner via the spring assembly (4), and the radial deformation of the pressure-resistant structure (1) is converted into a longitudinal deformation of the frame structure (2) via the rack and pinion assembly (3), so as to achieve a longitudinal rigid connection; The frame structure (2) comprises a first screw rod (22), a second screw rod (26) and a threaded sleeve (23) arranged longitudinally, wherein the first screw rod (22) and the second screw rod (26) respectively cooperate with left-handed and right-handed threads of the threaded sleeve (23); The threaded sleeve (23) is driven to rotate by the rack and pinion assembly (3), so that the first screw rod (22) and the second screw rod (26) are synchronously screwed in or out, so as to adjust the longitudinal spacing of the frame structure (2).

2. The adaptive deformation coordination structure for deep-sea equipment according to claim 1, characterized in that: The pressure-resistant structure (1) comprises a spherical head (11), a cylindrical shell (12) and annular ribs (13); the spherical head (11) is welded to both ends of the cylindrical shell (12); and the annular ribs (13) are distributed longitudinally along the cylindrical shell (12) and fixed by welding.

3. The adaptive deformation coordination structure for deep-sea equipment according to claim 1, characterized in that: The frame structure (2) further comprises a first solid rib (21), a second solid rib (25), a third solid rib (27) and a bearing (24); The first solid rib (21) and the third solid rib (27) are rigidly connected to the first screw rod (22) and the second screw rod (26) respectively; the second solid rib (25) is mounted with the threaded sleeve (23) via a bearing (24); the first screw rod (22), the second screw rod (26) and the threaded sleeve (23) constitute a longitudinal load-bearing member.

4. The adaptive deformation coordination structure for deep-sea equipment according to claim 1, characterized in that: The rack and pinion assembly (3) comprises: A rack (31) fixed to the outer surface of the cylindrical shell (12), a driving gear (32) meshing with the rack (31), a planetary gear carrier (35), planetary gears (34), a sun gear (36) and a driven gear (37); The planetary gear (34) comprises a planetary gear wheel (341) and a planetary gear pinion (342) which are coaxially connected, the planetary gear wheel (341) meshes with the sun gear (36), and the planetary gear pinion (342) meshes with the ring gear (33) fixed to the second solid rib plate (25); The driven gear (37) meshes with the gear teeth (234) of the threaded sleeve (23) to convert the radial displacement of the rack (31) into the rotational movement of the threaded sleeve (23).

5. The adaptive deformation coordination structure for deep-sea equipment according to claim 1, characterized in that: The spring assembly (4) comprises a spring (41), a cylinder (42) and a cylindrical sleeve (43); The cylindrical sleeve (43) is fixed to the outer surface of the cylindrical shell (12) of the pressure-resistant structure (1), and the cylinder (42) is fixed to the center of the solid rib of the frame structure (2) and inserted into the cylindrical sleeve (43) for slidable connection; The spring (41) is sleeved between the cylinder (42) and the cylindrical sleeve (43), and its two ends are respectively abutted between the cylindrical shell (12) and the solid rib plate.

6. The adaptive deformation coordination structure for deep-sea equipment according to claim 3, characterized in that: The inner walls at both ends of the threaded sleeve (23) are respectively provided with left-handed threads (232) and right-handed threads (233), and the ends of the first screw rod (22) and the second screw rod (26) are respectively provided with corresponding left-handed external threads and right-handed external threads.

7. The adaptive deformation coordination structure for deep-sea equipment according to claim 3, characterized in that: The outer wall of the middle section of the threaded sleeve (23) is provided with gear teeth (234), and the gear teeth (234) are meshed with the driven gear (37) to drive the threaded sleeve (23) to rotate.

8. The adaptive deformation coordination structure for deep-sea equipment according to claim 4, characterized in that: The transmission ratio between the driving gear (32) and the driven gear (37) is used to proportionally amplify the radial deformation of the pressure-resistant structure (1) to the longitudinal deformation of the frame structure (2).

9. The adaptive deformation coordination structure for deep-sea equipment according to claim 5, characterized in that: The spring (41) is in a compressed pre-tightened state during installation to provide an initial pre-tightening force for the radial elastic connection.

10. The adaptive deformation coordination structure for deep-sea equipment according to claim 1, characterized in that: The longitudinal load-bearing members are multiple groups and distributed along the circumference of the pressure-resistant structure (1); Each set of longitudinal bearing components comprises a first screw rod (22), a second screw rod (26), a threaded sleeve (23) and a bearing (24).

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