A non-destructive disassembly tool and method for a super high-speed underwater vehicle cabin section

Abstract

The application relates to a nondestructive dismounting tool and method for a super-high-speed underwater vehicle cabin section, and belongs to the underwater vehicle field. The tool comprises a hoop unit, a synchronous gear ring unit, a pushing unit, a trapezoidal screw rack unit and an adaptive ring unit. Two groups of hoop assemblies can detachably embrace respective corresponding dismounting cabin sections; four groups of synchronous gear ring assemblies are respectively arranged on the two sides of the two groups of hoop assemblies; four groups of pushing sub-units are correspondingly matched with the four groups of synchronous gear ring assemblies, six circumferentially-distributed pushing assemblies in the same group of synchronous gear ring assemblies and the same group of pushing sub-units are engaged, and synchronous transmission is realized. The pushing assemblies are simultaneously matched with the ear holes of the hoop assemblies through the trapezoidal screw rack unit, so that the rotary motion is converted into axial pushing and pulling. The adaptive ring assembly is arranged between the hoop assembly and the cabin section, friction self-locking clamping is realized, and the cabin section can be circumferentially rotated after being clamped. The application is compatible with cylindrical cabin sections and conical cabin sections, can be self-locked, has the synchronous closing and clamping functions, and has the circumferential adjusting capability after being clamped.

Description

Technical Field

[0001] This invention relates to the field of underwater vehicles, specifically to a non-destructive disassembly and assembly tooling for the testing and support of ultra-high-speed underwater vehicles, and a method thereof for the disassembly and assembly of ultra-high-speed underwater vehicle compartments. Background Technology

[0002] Hypersonic underwater vehicles can reach speeds exceeding 100 m / s underwater. During their movement, they endure high-frequency alternating loads far greater than those of typical low-speed underwater vehicles. Furthermore, during water entry and maneuvering, cavitation exhibits high asymmetry, and any depressions or protrusions on the surface of the compartments can lead to uncertainties in the overall hydrodynamic characteristics of the vehicle. Therefore, hypersonic underwater vehicles are typically designed as a combination of conical and cylindrical sections. The compartments are joined using radially sealed through-and-stop structures that differentiate circumferential positions, requiring a tight fit and high precision in installation. The surfaces of each compartment must remain flat and smooth.

[0003] During field tests of ultra-high-speed underwater vehicles, the assembly of compartments currently relies heavily on simple steel supports, using V-shaped brackets and bolts to clamp and secure the compartments. Assembly requires multiple people working together, utilizing hydraulic jacks, hammers, and other tools. Disassembly, on the other hand, is typically done using flathead screwdrivers and pry bars. This method is inefficient and highly prone to damaging the vehicle's compartments. The simple supports lack positioning references, necessitating repeated manual calibration of coaxiality and circumferential position during compartment installation, resulting in lengthy assembly and disassembly times. Furthermore, the use of screwdrivers, hammers, and pry bars can easily deform or damage compartment interfaces or seals, potentially causing injuries.

[0004] In the prior art, the authorized patent application number 202311466794.6 discloses a disassembly and assembly tool for pressure compartments of ordinary underwater vehicles in the field of shipbuilding. This tool is equipped with two clamps, a locking mechanism, and two sets of moving components. The moving components include a fixed base, a lead screw mechanism, a guide rail, and a slide. The lead screw drives the clamps to move axially. Simultaneously, a synchronization component consisting of a winding wheel, a guide wheel, a crossbeam, and a pull rope is provided. The pull rope enables the lead screws on both sides to rotate synchronously, allowing the two compartment sections to clamp together axially and press against each other, thereby improving the sealing performance at the docking position.

[0005] However, this existing technology is mainly geared towards shipbuilding and assembly scenarios. If it is directly applied to the testing and assembly of ultra-high-speed underwater vehicles, the following limitations exist: First, the existing technology uses a guide rail slide, crossbeam, and rope synchronization assembly, which has large component volumes and occupies a lot of space. However, the installation space of the vehicle placement platform is limited in the field test of the ultra-high-speed underwater vehicle, and the existing structure is difficult to adapt.

[0006] Secondly, rope-driven systems are subject to tensile creep, and their synchronization accuracy is significantly affected by the condition of the rope and installation errors. The assembly of ultra-high-speed underwater vehicles demands high precision in synchronization, which existing synchronization methods cannot meet.

[0007] Third, in this existing technology, the locking between the clamp and the compartment relies entirely on the clamp locking mechanism, without a self-locking structure. During the axial pushing and disassembly of the compartment, eccentricity or localized stress concentration can easily occur, leading to damage to the precision shell and misalignment during docking.

[0008] Fourth, the existing clamp locking mechanism completely locks the clamp and the compartment in the circumferential direction after locking. During the assembly and testing of the ultra-high-speed underwater vehicle, the sensor interfaces and positioning pin holes on the compartment need to be aligned during the docking process. The circumferential phase of the compartment needs to be adjusted while it is clamped, and the existing tools do not have this capability.

[0009] Fifth, the ultra-high-speed underwater vehicle is composed of two types of sections: conical and cylindrical. The existing tool is mainly suitable for conventional cylindrical pressure-resistant sections and lacks a clamping structure for conical sections, making it difficult to reliably assemble and disassemble the conical sections of the ultra-high-speed vehicle.

[0010] In summary, existing modular assembly and disassembly fixtures in the shipbuilding field are insufficient to meet the special working conditions of ultra-high-speed underwater vehicle testing support in terms of structural form, working principle, and adaptability. Therefore, a specialized assembly and disassembly fixture with a more compact structure, higher synchronization accuracy, circumferential attitude adjustment capability, universal cone and column design, and anti-slip self-locking capability is needed. Summary of the Invention

[0011] The technical problem to be solved: To overcome the shortcomings of existing technologies, this invention provides a non-destructive disassembly and assembly fixture and method for ultra-high-speed underwater vehicle sections. The fixture is compatible with both cylindrical and conical sections, can self-lock, and has synchronous engagement and circumferential adjustment capabilities after clamping, thereby solving existing problems.

[0012] The technical solution of this invention is: a non-destructive assembly and disassembly fixture for a section of an ultra-high-speed underwater vehicle, comprising a clamping unit, a synchronous gear ring unit, a jacking unit, a trapezoidal lead screw grid unit, and an adapter ring unit; wherein: The clamp unit includes a first clamp assembly and a second clamp assembly with identical structures. The two clamp assemblies can be detachably clamped onto their respective disassembly and assembly sections, and the sections can rotate circumferentially relative to the clamp assemblies. The synchronous gear ring unit includes four sets of synchronous gear ring assemblies with the same structure. Two sets are symmetrically installed on both sides of the first clamp assembly, and the other two sets are symmetrically installed on both sides of the second clamp assembly. The synchronous gear ring assembly is a gear ring with an outer gear ring on its outer diameter. The synchronous gear ring assembly is coaxial and rotatably connected to the clamp assembly on which it is installed. The trapezoidal screw grid unit includes two sets of trapezoidal screw grids with the same structure. The trapezoidal screw grid includes multiple parallel trapezoidal screws evenly distributed in the same semicircular arc and an arc-shaped structure that fixes the multiple trapezoidal screws. The two ends of the trapezoidal screws are respectively inserted into the first clamp assembly and the second clamp assembly. The two trapezoidal screw grids are arranged opposite to each other to form an annular grid around the clamp unit. The jacking unit includes four sets of jacking sub-units with identical structures. Each set of jacking sub-units corresponds to a set of synchronous gear ring assemblies. Each set of jacking sub-units includes multiple jacking components. The jacking components of each set of jacking sub-units are installed one-to-one with the trapezoidal lead screw. The jacking components are fitted onto the outer diameter of the trapezoidal lead screw, and their interiors form a helical transmission pair with the trapezoidal lead screw. The outer diameter of the jacking components is provided with gear teeth for meshing with the outer gear ring of the synchronous gear ring assembly. The two sets of jacking sub-units on both sides of the same clamp assembly are arranged opposite each other, and when the same set of jacking sub-units works, they generate synchronous axial thrust on the clamp assembly. The adapter ring unit includes two sets of adapter ring assemblies, which are installed one-to-one with two sets of clamp assemblies. The adapter ring assembly is installed between the clamp assembly and the compartment, and it is used for elastic adaptation between the inner ring of the clamp assembly and the outer ring of the compartment.

[0013] A further technical solution of the present invention is: the first clamp assembly includes: Two semi-circular outer rings are hinged at one end and detachably locked at the other end, forming a complete ring structure after locking. The inner diameter of each of the two semi-circular outer rings is provided with a semi-annular dovetail groove, which forms a complete dovetail groove after the two semi-circular outer rings are locked together. The two semi-circular outer rings are symmetrically provided with mounting slots on both sides of the axial direction for installing the synchronous gear ring assembly. Two semi-circular inner rings are rolled and installed in the dovetail groove through semi-circular turnbuckle bearings. After the two semi-circular outer rings are locked together, the two semi-circular inner rings form a complete ring. The semi-circular turnbuckle bearings are fixed to the outer diameter wall of the dovetail groove. The outer diameter of the semi-circular inner rings is in rolling contact with the semi-circular turnbuckle bearings. The inner diameter of the semi-circular inner rings is exposed outside the dovetail groove, and the axial section of its inner diameter wall is a convex V-shape. Multiple first rectangular planes are evenly distributed around each V-shaped inclined surface of the convex V-shape. And multiple needle roller rows, which are installed one-to-one with the first rectangular plane. The needle roller rows are fixed on the rectangular plane. The needle roller axis of the needle roller row is perpendicular to the central axis of the half-circle inner ring. The needle roller rows are used to allow the two half-circle inner rings and the adapter ring unit to roll axially along the V-shaped inclined plane.

[0014] A further technical solution of the present invention is: the two semi-circular outer rings are identical except for the hinge joint, and the outer diameter walls of the two semi-circular outer rings are circumferentially distributed with multiple bosses with ear holes. The ear holes are used to insert the trapezoidal lead screw, and the bosses are used to form an axial limit for the push assembly.

[0015] A further technical solution of the present invention is: the inner half-circle is provided with a dovetail protrusion that matches the dovetail groove of the outer half-circle, the dovetail protrusion is embedded in the dovetail groove, and the inner half-circle is provided with V-shaped concave inclined surfaces on both sides that match the protrusions on both sides of the dovetail groove of the outer half-circle, and the V-shaped concave inclined surfaces are coated with polytetrafluoroethylene coating.

[0016] A further technical solution of the present invention is: the synchronous gear ring assembly includes two semi-circular gear rings, which are coplanarly installed in the mounting grooves on the same side of the two semi-circular outer rings. The mounting grooves are annular grooves with rectangular cross-sections. The annular grooves are clearance-fitted with the protrusions provided on the inner diameter of the semi-circular gear rings. The semi-circular outer rings form an axial limit on the semi-circular gear rings. After the two semi-circular outer rings are mated and locked, the two semi-circular gear rings of the synchronous gear ring assembly form a complete ring.

[0017] A further technical solution of the present invention is: each set of trapezoidal screw grids is provided with three trapezoidal screws, the two ends of the trapezoidal screws are trapezoidal threads, the middle is a smooth rod structure, and the arc structure is fixed at the middle smooth rod of the trapezoidal screw.

[0018] A further technical solution of the present invention is: the jacking assembly includes: The outer casing is a hollow rotating body fitted onto a trapezoidal lead screw. One end of its outer diameter has a regular hexagonal structure, serving as the wrench's working section. The middle of the outer diameter has teeth for meshing with the synchronous gear ring assembly. The other end of the outer diameter has an external thread. The inner hole of the outer casing is a stepped hole, consisting of a small diameter section, a trapezoidal internal thread section, and a large diameter section from the wrench's working section side. The small diameter section has a clearance fit with the trapezoidal lead screw, the trapezoidal internal thread section is used for threaded meshing with the trapezoidal lead screw, and the inner diameter of the large diameter section is larger than that of the small diameter section. The hollow push rod is a hollow cylindrical structure with an outward flange at one end and an external thread at the other end. The hollow push rod is located inside the large diameter section and is fitted onto the trapezoidal screw, with its flange end facing the trapezoidal internal thread section of the outer shell. The first thrust bearing is coaxially mounted on the large-diameter section, located between the inner end stepped surface of the large-diameter section and the flange of the hollow push rod; The second thrust bearing is coaxially mounted on the body of the hollow push rod. One end of the bearing contacts the inner end face of the flange of the hollow push rod, and the other end is axially limited by the end cap. End cap, which is threaded to the external threaded end of the housing, is used to axially press the second thrust bearing; And a threaded foot pad, which is fitted onto the external thread of the hollow push rod and threadedly connected to it. The outer diameter of the threaded foot pad is larger than the ear hole on the half-circle outer ring boss. The threaded foot pad is in close contact with the boss of the half-circle outer ring. The gap between the push assembly and the boss is adjusted by screwing the threaded foot pad.

[0019] A further technical solution of the present invention is: the adapter ring assembly includes two semi-circular ring bodies and multiple rubber blocks; the two semi-circular ring bodies are thin-walled semi-circular structures made of spring steel, which are joined together to form a complete ring, and a certain gap is provided at the joint; the outer radial section of the semi-circular ring body is a concave V-shape, which is adapted to the convex V-shape of the inner diameter of the semi-circular ring, and the V-shape angle is consistent; multiple second rectangular planes are evenly distributed around each V-shaped inclined surface of the concave V-shape, and the second rectangular planes correspond one-to-one with the first rectangular planes; the second rectangular planes are in rolling contact with the needle rollers of the needle roller row. Multiple rubber blocks are uniformly bonded and fixed along the inner circumference of the semi-circular ring. When two semi-circular rings are joined together, the inner ring formed by all the rubber blocks bonded to its inner ring is adapted to the outer wall of the compartment to which the fitting ring assembly is installed. When the outer wall of the compartment is cylindrical, the inner ring formed by the rubber blocks does not have a taper. When the outer wall of the compartment is conical, the inner ring formed by the rubber blocks has a corresponding taper. The outer diameter of the rubber blocks is fixed, and the inner diameter is serially adapted according to the size and shape of the outer wall of the compartment.

[0020] A method for determining the included angle of the V-shaped inclined plane on the outer diameter of a semi-circular ring in a fitting assembly: The value of the angle between the two inclined planes of the V-shape should satisfy:

[0021] In the formula, The angle between the two inclined planes in a V-shape. For the cone angle of the aircraft section to be disassembled and assembled, For safety reasons, Typical values ​​of friction coefficient between the ring assembly and the surface of the vehicle compartment to be disassembled.

[0022] A method for using a non-destructive disassembly and assembly fixture for a section of an ultra-high-speed underwater vehicle includes the following steps: Select two sets of adapter ring assemblies, namely the first adapter ring assembly and the second adapter ring assembly, according to the diameter and taper of the tooling mating part of the vehicle's compartment to be disassembled and assembled. Release the locking of the first clamp assembly and the second clamp assembly, and open them; The first and second adapter ring assemblies are respectively fitted onto the mating parts of the corresponding compartments of the aircraft to be disassembled and assembled, and the first and second clamp assemblies are closed and pressed against the outer rings of the first and second adapter ring assemblies respectively. Then, the two sets of clamp assemblies are locked together. At this time, the rubber blocks of the two sets of adapter ring assemblies are deformed under pressure and elastically press against the outer diameter wall of the compartment. Let the facing sides of the first clamp assembly and the second clamp assembly be their respective inner sides, and the opposite sides be their respective outer sides. Let the four sets of pusher units on the outer and inner sides of the first clamp assembly and the inner and outer sides of the second clamp assembly be the first pusher unit, the second pusher unit, the third pusher unit, and the fourth pusher unit, respectively. Let the four sets of synchronous gear ring assemblies on the outer and inner sides of the first clamp assembly and the inner and outer sides of the second clamp assembly be the first synchronous gear ring assembly, the second synchronous gear ring assembly, the third synchronous gear ring assembly, and the fourth synchronous gear ring assembly, respectively. When assembling the compartments, the first pusher unit is engaged with the first synchronous gear ring assembly, and the fourth pusher unit is engaged with the fourth synchronous gear ring assembly; the second pusher unit is disengaged from the second synchronous gear ring assembly, and the third pusher unit is disengaged from the third synchronous gear ring assembly. Then, the pusher components of the first pusher unit and the fourth pusher unit are alternately rotated clockwise to move the two clamping assemblies toward each other, thereby driving the two compartments to close. When splitting the compartments, engage the second pusher unit with the second synchronous gear ring assembly, and engage the third pusher unit with the third synchronous gear ring assembly; disengage the first pusher unit from the first synchronous gear ring assembly, and disengage the fourth pusher unit from the fourth synchronous gear ring assembly; alternately rotate any pusher assembly in the second pusher unit and any pusher assembly in the third pusher unit clockwise, causing the two clamp assemblies to move in opposite directions, thereby completing the splitting of the two compartments; After the two sections are assembled or disassembled, the assembly and disassembly tools are removed.

[0023] The beneficial effects of this invention are as follows: The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections described in this invention, through gear synchronous transmission, decoupling of clamping and circumferential adjustment, V-shaped force self-locking, and a series of adapter ring designs, achieves rapid and non-destructive disassembly and assembly of ultra-high-speed underwater vehicle sections, specifically having the following effects: The synchronous gear ring assembly on the same side of the same set of jacking components and clamping components achieves synchronous transmission. At the same time, the jacking components and trapezoidal screw drive realize the motion conversion from rotation to axial pushing. The gear synchronous transmission structure is compact, with small transmission gap and high synchronization accuracy, ensuring uniform circumferential force on the clamping components and ensuring the coaxiality of the compartment docking.

[0024] The clamping function and the circumferential adjustment function of the compartment are decoupled. The radial clamping of the compartment can be achieved by the adapter ring assembly. The rotation setting of the two half-circle inner rings in the clamp assembly in conjunction with the two half-circle turnbuckle bearings can also achieve manual fine adjustment of the circumferential angle of the compartment after clamping, so as to meet the requirements of sensor hole position, positioning pin and wiring phase alignment.

[0025] The V-shaped force-shaping structure (referring to the V-shaped surface of the inner half-ring, the needle roller row, and the V-shaped surface of the adapter ring assembly that work together) converts the axial force of disassembly and assembly into radial clamping force, and achieves centering and self-locking clamping of cylindrical and conical surfaces by relying on mechanical friction self-locking, which is especially suitable for conical thin-walled compartments.

[0026] The series of adaptable ring components are compatible with both conical and cylindrical sections, allowing for quick replacement to match sections in different positions and sizes, thus improving the adaptability and operational efficiency of the disassembly and assembly tools. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is an isometric schematic diagram of the overall structure of the non-destructive assembly and disassembly tooling of the present invention; Figure 2 This is an exploded axial view of the overall structure of the non-destructive assembly / disassembly tooling of the present invention. Figure 3 This is a cross-sectional schematic diagram of the first clamp assembly structure; Figure 4 This is a cross-sectional diagram of the upper semi-circular outer ring structure; Figure 5 This is a cross-sectional diagram of the semi-circular inner ring structure; Figure 6 This is a schematic diagram of the transmission structure between the synchronous gear ring unit, the trapezoidal lead screw grid unit, and the jacking unit. Figure 7 This is a schematic diagram of the assembly cross-sectional structure of the first clamp assembly, the first jacking assembly, and the first adapter ring assembly. Figure 8 The diagram shows the structure of the adapter ring assembly (Figure a shows the first adapter ring assembly, where the rubber block is not tapered; Figure b shows the second adapter ring assembly, where the rubber block is tapered). Figure 9 This is a schematic diagram of a semi-circular basket bearing structure. Figure 10 This is a schematic diagram of a needle roller array structure; Figure 11 This is a cross-sectional diagram of the pusher assembly structure; Figure 12 A schematic diagram illustrating the force distribution between the adaptable ring assembly and the spacecraft compartment to be disassembled.

[0029] In the diagram: 1. First pusher subunit; 1-1. First pusher assembly; 1-1-1. Outer shell; 1-1-2. Hollow push rod; 1-1-3. End cap; 1-1-4. Threaded foot pad; 1-1-5. Second thrust bearing; 1-1-6. First thrust bearing; 1-2. Second pusher assembly; 1-3. Third pusher assembly; 1-4. Fourth pusher assembly; 1-5. Fifth pusher assembly; 1-6. Sixth pusher assembly; 2. First synchronous gear ring assembly; 2-1. Half-circle gear ring; 3. First clamp assembly; 3-1. Pin; 3-2. Upper half-circle outer ring; 3-3. Needle roller array; 3-4. Half-circle inner ring; 3-5. Half-circle turnbuckle bearing; 3-6. Locking element; 3-7. Lower half-circle outer ring; 3-8 3-9. Tightening screw; 3-10. Locating pin; 3-11. U-shaped groove; 3-12. Locating hole; 3-13. Boss; 3-14. Ear hole; 3-15. Dovetail groove; 3-16. Mounting groove; 3-17. First rectangular plane; 4. Second synchronous gear ring assembly; 5. First adapter ring assembly; 5-1. Half-circle ring body; 5-2. Rubber block; 5-3. Second rectangular plane; 6. Second pusher unit; 7. First trapezoidal screw grid; 7-1. Trapezoidal screw; 7-2. Arc structure; 8. Second trapezoidal screw grid; 9. Third pusher unit; 10. Second adapter ring assembly; 11. Third synchronous gear ring assembly; 12. Second clamp assembly; 13. Fourth synchronous gear ring assembly; 14. Fourth pusher unit. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] An embodiment of the present invention provides a non-destructive disassembly and assembly tooling for a section of an ultra-high-speed underwater vehicle, such as... Figure 1 , Figure 2As shown, the system includes a clamping unit, a synchronous gear ring unit, a jacking unit, a trapezoidal screw grid unit, and an adapter ring unit. The clamping unit includes a first clamping assembly 3 and a second clamping assembly 12 with identical structures. The synchronous gear ring unit includes four sets of synchronous gear ring assemblies with identical structures: a first synchronous gear ring assembly 2, a second synchronous gear ring assembly 4, a third synchronous gear ring assembly 11, and a fourth synchronous gear ring assembly 13. The jacking unit includes four sets of jacking sub-units with identical structures: a first jacking sub-unit 1, a second jacking sub-unit 6, a third jacking unit 9, and a fourth jacking unit 14. The trapezoidal screw grid unit includes two sets of trapezoidal screw grids with identical structures: a first trapezoidal screw grid 7 and a second trapezoidal screw grid 8. The adapter ring unit includes two sets of adapter ring assemblies: a first adapter ring assembly 5 and a second adapter ring assembly 10. Detailed structural descriptions are provided below with reference to the accompanying drawings.

[0032] like Figure 1 , Figure 3 As shown, the first clamp assembly 3 and the second clamp assembly 12 of the clamp unit are coaxially arranged and can detachably clamp their respective corresponding disassembly / assembly sections. The sections clamped by the clamp assemblies are circumferentially rotatable relative to the clamp assemblies. Assume the first clamp assembly 3 clamps onto the mating part of the outer diameter wall of the first section, and the second clamp assembly 12 clamps onto the mating part of the outer diameter wall of the second section. The first and second sections need to be coaxially connected or disassembled. During connection, the first section is circumferentially rotatable relative to the first clamp assembly 3, and the second section is circumferentially rotatable relative to the second clamp assembly 12 to adjust the connection orientation.

[0033] Since the first clamp assembly 3 and the second clamp assembly 12 have the same structure, the structure of the first clamp assembly 3 will be described in detail below.

[0034] like Figure 3 , Figure 7 As shown, the first clamp assembly includes two semi-circular outer rings, namely the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7, two semi-circular inner rings 3-4 with the same structure, two semi-circular turnbuckle bearings 3-5, thirty-six needle rollers 3-3, pin 3-1, locking element 3-6, multiple set screws 3-8 and positioning pins 3-9.

[0035] like Figure 3 , Figure 4As shown, both the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are 180° semi-circular rings. One end of the two is hinged, and the other end is detachable and lockable. After the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are locked together, they form a complete ring structure. The two semi-circular outer rings are identical in structure except for the hinged end. The hinged end of the upper semi-circular outer ring 3-2 is a slot structure, and the hinged end of the lower semi-circular outer ring 3-7 is a lug structure. The lug structure is embedded in the slot structure. Both the lug and the slot are provided with pin holes, and the hinge is achieved by inserting a pin shaft 3-1. The hinged ends of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are the locking ends. Both locking ends are provided with U-shaped slots 3-10 and positioning holes 3-11. During locking, positioning is achieved by inserting a positioning pin 3-9 into the positioning hole 3-11. After positioning, the U-shaped slots 3-10 of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are aligned. The two semi-circular outer rings are locked together by a locking component 3-6 inserted into the U-shaped slot 3-10. The locking component 3-6 is specifically a hexagonal stud and nut assembly. The hexagonal stud passes through the U-shaped slots of the two semi-circular outer rings and is locked in place by the nut.

[0036] Both the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 have three bosses 3-12 with ear holes 3-13 on their outer diameter walls. The three bosses 3-12 are evenly distributed circumferentially, and each boss 3-12 has a through hole forming an ear hole 3-13. The axis of the ear hole 3-13 is parallel to the axis of the two semi-circular outer rings. After the two semi-circular outer rings are joined together to form a complete ring, the six ear holes 3-13 are evenly distributed on the same circumference. The ear holes 3-13 are used to install the trapezoidal lead screw grid unit, and the bosses 3-12 are used to provide axial positioning for the pushing unit.

[0037] The inner diameters of both the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are provided with semi-annular dovetail grooves 3-14, which form a full circle of dovetail grooves after the rings are locked. A semi-circular turnbuckle bearing 3-5 and a semi-circular inner ring 3-4 are installed in the dovetail grooves 3-14. The upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 are symmetrically provided with mounting grooves 3-15 on both sides of the axial direction for installing the synchronous gear ring assembly.

[0038] like Figure 5 , Figure 7As shown, the inner half-ring 3-4 is a 180° semi-ring. The two inner half-rings 3-4 and the two outer half-rings are installed one-to-one. The inner half-ring 3-4 is rolled in the dovetail groove 3-14 of the corresponding outer half-ring through the half-ring turnbuckle bearing 3-5. Specifically, the outer diameter of the inner half-ring 3-4 is provided with a dovetail protrusion that matches the dovetail groove 3-14. The dovetail protrusion is embedded in the dovetail groove 3-14. The two sides of the inner half-ring 3-4 form V-shaped concave slopes that match the protrusions on both sides of the dovetail groove 3-14. The V-shaped concave slopes are coated with polytetrafluoroethylene to reduce the lateral friction between the inner half-ring 3-4 and the outer half-ring. After the upper half-circle outer ring 3-2 and the lower half-circle outer ring 3-7 are mated and locked together, the two half-circle inner rings 3-4 form a complete ring and are mutually circumferentially limited. When either half-circle inner ring rotates circumferentially relative to the other half-circle inner ring, its end will push the end of the other half-circle inner ring. Therefore, the two rotate synchronously while being mutually limited in the circumferential direction. The structure of the half-circle turnbuckle bearing 3-5 is as follows: Figure 9 As shown, the semi-ring shape is represented by the cage of the semi-circular turnbuckle bearing 3-5, which is fixedly mounted to the outer diameter wall of the dovetail groove 3-14 by screws 3-8. The rolling elements of the semi-circular turnbuckle bearing 3-5 roll in contact with the radial outer ring surface of the dovetail protrusion of the semi-circular inner ring 3-4, allowing the semi-circular inner ring 3-4 to rotate circumferentially relative to the semi-circular outer ring. The inner diameter of the semi-circular inner ring 3-4 protrudes from the dovetail groove 3-14, and its inner diameter wall has a symmetrical convex V-shaped cross-section along the axial direction. After the two semi-circular inner rings 3-4 are joined, eighteen first rectangular planes 3-16 are evenly distributed around the circumference of the V-shaped inclined surface on one side of the convex V-shape, forming a total of thirty-six first rectangular planes 3-16 on both sides of the V-shape. The first rectangular planes 3-16 are used to install the needle roller row 3-3.

[0039] The structure of the needle roller 3-3 is as follows: Figure 10 As shown, thirty-six needle roller rows 3-3 and the inner walls of the two semi-circular inner rings 3-4, totaling thirty-six first rectangular planes 3-16, are installed one-to-one. The needle roller rows 3-3 are fixed to the first rectangular planes 3-16 by a set of set screws 3-8. The needle roller rows 3-3 are single-sided needle rollers, and their needle axis is spatially perpendicular to the central axis of the semi-circular inner rings 3-4. The needle roller rows 3-3 are used to enable axial rolling along the V-shaped inclined plane between the clamping inner ring (i.e., the two semi-circular inner rings 3-4) and the adapter ring unit.

[0040] like Figure 1 , Figure 6 and Figure 7 As shown, the four sets of synchronous gear ring assemblies in the synchronous gear ring unit have identical structures. Two sets of synchronous gear ring assemblies are symmetrically installed on both sides of the first clamp assembly 3, and the other two sets of synchronous gear ring assemblies are symmetrically installed on both sides of the second clamp assembly 12. The synchronous gear ring assembly is a gear ring with an outer gear ring on its outer diameter. The synchronous gear ring assembly is coaxial with the clamp assembly it is installed on and can be rotated relative to it.

[0041] Specifically, the first synchronous gear ring assembly 2 and the second synchronous gear ring assembly 4 are symmetrically installed on both sides of the first clamp assembly 3, and the third synchronous gear ring assembly 11 and the fourth synchronous gear ring assembly 13 are symmetrically installed on both sides of the second clamp assembly 12. Each synchronous gear ring assembly includes two semi-circular gear rings 2-1, which are 180° semi-circular in shape. The two semi-circular gear rings 2-1 are coplanarly installed in the mounting grooves 3-15 on the same side of the two mating semi-circular outer rings (upper semi-circular outer ring 3-2 and lower semi-circular outer ring 3-7). The mounting grooves 3-15 are annular grooves with a rectangular cross-section. The annular grooves cooperate with the protrusions set in the inner diameter of the semi-circular gear rings 2-1. The semi-circular outer rings form an axial limit on the semi-circular gear rings 2-1. After the two semi-circular outer rings 2-1 are mated and locked, the two semi-circular gear rings 2-1 of the synchronous gear ring assembly form a complete ring. Since each half-circle toothed ring occupies 180° of the circumference, after forming a closed loop, neither half-circle toothed ring can move relative to the other half-circle toothed ring circumferentially, thus limiting their mutual positioning in the circumferential direction. The assembly cross-sectional view of the first synchronous toothed ring assembly 2 and the second synchronous toothed ring assembly 4 installed on both sides of the first clamp assembly 3 is shown below. Figure 7 As shown, the synchronous gear ring assembly forms a circumferentially rotatable clearance fit with the clamp assembly through the inner ring stepped structure, and achieves axial positioning by engaging the rectangular protrusion with the rectangular mounting groove 3-15 on the clamp assembly.

[0042] like Figure 1 , Figure 6 As shown, the first trapezoidal screw grid 7 and the second trapezoidal screw grid 8 of the trapezoidal screw grid unit connect two clamping assemblies and are used to install the jacking unit to realize power transmission. The two trapezoidal screw grids are arranged opposite each other, forming an annular grid around the clamping unit.

[0043] Specifically, the first trapezoidal lead screw grid 7 and the second trapezoidal lead screw grid 8 have the same structure. Taking the first trapezoidal lead screw grid 7 as an example, it includes three parallel trapezoidal lead screws 7-1 evenly distributed within the same semicircular arc, and an arc-shaped structure 7-2 that fixes and connects the three trapezoidal lead screws. The two ends of the trapezoidal lead screw 7-1 have right-hand trapezoidal threads with a specification of Tr16×4, and the middle is a smooth rod structure. The arc-shaped structure 7-2 is welded and fixed to the middle smooth rod of the trapezoidal lead screw to maintain the circumferential position of the three lead screws. The two ends of the trapezoidal lead screw 7-1 are respectively inserted into the ear holes 3-13 on the first clamp assembly 3 and the second clamp assembly 12, and pusher units are installed on both sides of the boss 3-12 for connection. The trapezoidal lead screw and the ear holes are clearance-fitted and can slide relative to each other axially. Specifically, the two ends of the first trapezoidal screw grid 7 are connected to the lower half-circle outer ring of the two clamping assemblies, and the two ends of the second trapezoidal screw grid 8 are connected to the upper half-circle outer ring of the two clamping assemblies. The annular structures of the two trapezoidal screw grids are staggered vertically and coaxially, so that the six trapezoidal screws are evenly distributed along the circumference of the clamping assembly, thus ensuring that the upper half-circle outer ring and the lower half-circle outer ring of the clamping assembly can be opened.

[0044] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 11 As shown, the jacking unit includes four sets of jacking sub-units with identical structures. Each set of jacking sub-units corresponds to a set of synchronous gear ring assemblies. Each set of jacking sub-units includes six jacking assemblies. The jacking assemblies of each set of jacking sub-units are installed one-to-one with each trapezoidal lead screw. The jacking assemblies are fitted onto the outer diameter of the trapezoidal lead screw, and their interiors form a helical transmission pair with the trapezoidal lead screw. Their outer diameters are provided with gear teeth for meshing with the outer gear ring of the synchronous gear ring assembly.

[0045] Specifically, in the first pusher unit 1, the second pusher unit 6, the third pusher unit 9, and the fourth pusher unit 14, the first pusher unit 1 and the second pusher unit 6 are installed on both sides of the first clamp assembly 3. The first pusher unit 1 is driven in conjunction with the first synchronous gear ring assembly 2, and the second pusher unit 6 is driven in conjunction with the second synchronous gear ring assembly 4. The third pusher unit 9 and the fourth pusher unit 14 are installed on both sides of the second clamp assembly 12. The third pusher unit 9 is driven in conjunction with the third synchronous gear ring assembly 11, and the fourth pusher unit 14 is driven in conjunction with the fourth synchronous gear ring assembly 13.

[0046] Each pusher subunit has the same structure. Taking the first pusher subunit 1 as an example, it includes... Figure 6 The first jacking component 1-1, the second jacking component 1-2, the third jacking component 1-3, the fourth jacking component 1-4, the fifth jacking component 1-5, and the sixth jacking component 1-6 shown are six sets of jacking components with the same structure, which are evenly arranged in the circumferential direction. Figure 7 The image shown is a sectional view of the mounting location of the first jacking assembly 1-1. See also... Figure 11 The structure of the pusher assembly will be introduced below, taking the first pusher assembly 1-1 as an example.

[0047] The push assembly 1-1 includes a housing 1-1-1, a hollow push rod 1-1-2, an end cap 1-1-3, a threaded foot pad 1-1-4, a second thrust bearing 1-1-5, and a first thrust bearing 1-1-6.

[0048] The outer casing 1-1-1 is a hollow rotating body, fitted onto the trapezoidal lead screw of the second trapezoidal lead screw grid 8. One end of the outer diameter of the outer casing 1-1-1 has a regular hexagonal structure, serving as the wrench operating section. A gear tooth is provided in the middle of the outer diameter of the outer casing 1-1-1, which meshes with the first synchronous gear ring assembly 2. The other end of the outer diameter of the outer casing 1-1-1 has an external thread, used for installing the end cap 1-1-3. The inner bore of the outer casing 1-1-1 is a stepped bore, consisting of a small diameter section, a trapezoidal internal thread section, and a large diameter section sequentially from the wrench operating section side. The small diameter section has a clearance fit with the trapezoidal lead screw, allowing it to pass through. The trapezoidal internal thread section meshes with the trapezoidal lead screw thread, enabling the outer casing 1-1-1 to move along the trapezoidal lead screw. The trapezoidal internal thread section has a trapezoidal thread friction angle of 6°, a lead angle of 3°, and self-locking capability; all threads are right-hand threads. The inner diameter of the larger diameter section is larger than that of the smaller diameter section. The larger diameter section is used to install two thrust bearings and the hollow push rod 1-1-2. The hollow push rod 1-1-2 is a hollow cylindrical structure with an outward-facing flange at one end and an external thread at the other end. The hollow push rod 1-1-2 is located inside the larger diameter section and is fitted onto a trapezoidal lead screw, with its flange end facing the trapezoidal internal thread section of the outer shell 1-1-1. The first thrust bearing 1-1-6 is coaxially mounted in the inner cavity of the larger diameter section of the outer shell 1-1-1, located between the stepped surface at the inner end of the larger diameter section and the flange of the hollow push rod 1-1-2. The second thrust bearing 1-1-5 is coaxially mounted on the body of the hollow push rod 1-1-2. One end of the second thrust bearing 1-1-5 contacts the inner end face of the flange of the hollow push rod 1-1-2 (i.e., the flange end face facing away from the first thrust bearing 1-1-6). The other end of the second thrust bearing 1-1-5 is axially pressed and limited by the end cap 1-1-3. The end cap 1-1-3 is generally annular, and its axial single-sided cross-section is U-shaped, forming a U-shaped inner cavity. The U-shaped inner cavity is used for the insertion of the threaded end of the outer shell 1-1-1. The outer diameter of the U-shaped inner cavity is provided with internal threads for threaded connection with the external threaded end of the outer shell 1-1-1. The end face of the radial inner wall of the end cap 1-1-3 contacts the second thrust bearing 1-1-5. The end cap 1-1-3 is used to axially press the second thrust bearing 1-1-5, the hollow push rod 1-1-2, and the first thrust bearing 1-1-6. The threaded foot pad 1-1-4 is a ring-shaped structure with internal threads. It is fitted onto the external thread of the hollow push rod 1-1-2 and threadedly connected to it. The outer diameter of the threaded foot pad 1-1-4 is larger than the ear hole 3-13 on the half-circle outer ring boss 3-12. The threaded foot pad 1-1-4 is required to be in close contact with the half-circle outer ring boss 3-12. The gap between the push assembly 1-1 and the boss 3-12 is adjusted by screwing the threaded foot pad 1-1-4 to ensure reliable contact between the two.

[0049] When the housing of any one of the push components in a set of push subunits is rotated with a wrench, the housing drives the meshing synchronous gear ring to rotate, and the synchronous gear ring then drives the housings of the other five push components to rotate synchronously, so as to achieve synchronous axial feed of the six push components.

[0050] It should be noted that the first pusher unit 1 and the second pusher unit 6 are arranged opposite each other, and the third pusher unit 9 and the fourth pusher unit 14 are arranged opposite each other. That is, in the pusher assemblies on both sides of the same boss 3-12, the threaded foot pads are in contact with the boss 3-12.

[0051] In this embodiment, the module m=1 and the number of teeth Z=210 of the synchronous gear ring assembly are integer multiples of 6, ensuring simultaneous and correct meshing with the six circumferentially distributed push assemblies of the same push subunit. The module m=1 and the number of teeth Z=42 of the tooth section of the push assembly housing are both 20°, and the tooth width is 15mm. The total axial movement of the push assembly during assembly and disassembly is 15mm. The trapezoidal threads at both ends of the trapezoidal lead screw are single-start right-hand threads with a specification of Tr16×4, a lead of 4mm, a thread helix angle of approximately 4.5°, a friction angle of 6°, and a lead angle of 3°. Both the housing and the trapezoidal lead screw are made of aluminum alloy and are self-locking. The radius of the boss distribution circle and the center circle radius of the six push assemblies in the same group are both 126mm, which is equal to the sum of the synchronous gear ring pitch circle radius of 105mm and the push assembly pitch circle radius of 21mm.

[0052] like Figure 1 , Figure 8 As shown, the adapter ring unit includes two sets of adapter ring assemblies: a first adapter ring assembly 5 and a second adapter ring assembly 10. The first adapter ring assembly 5 is installed between the first clamp assembly 3 and the first compartment, and the second adapter ring assembly 10 is installed between the second clamp assembly 12 and the second compartment. The adapter ring assemblies are used for elastic fitting between the inner ring of the clamp assembly and the outer ring of the compartment. Both adapter ring assemblies include two semi-circular ring bodies and multiple rubber blocks evenly distributed and pasted on the inner wall of the semi-circular ring bodies. The semi-circular ring bodies of the two adapter ring assemblies have the same structure, being thin-walled semi-rings made of spring steel. The rubber blocks have the same outer diameter, and the inner diameter of the rubber blocks is adapted to the outer wall size and shape of the compartment to which they are installed.

[0053] like Figure 8As shown, taking the first adapter ring assembly 5 for a cylindrical first compartment as an example, the first adapter ring assembly 5 includes two semi-circular ring bodies 5-1 with a semi-circular structure. The semi-circular ring bodies 5-1 are thin-walled semi-circular rings made of spring steel. After the two are joined, they form a complete ring, and a certain gap is set at the joint. In this embodiment, the gap is 6mm, which is used to compensate for the diameter deviation of the aircraft compartment to be disassembled and to compensate for the deformation of the semi-circular ring body during the locking process of the clamp assembly. The outer radial section of the semi-circular ring body 5-1 is concave V-shaped, which matches the convex V-shaped inner diameter of the semi-circular inner ring 3-4. The V-shaped angles of the two are consistent. After the two semi-circular ring bodies 5-1 are joined, eighteen second rectangular planes 5-3 are evenly distributed around the single-sided V-shaped inclined surface of the concave V-shape, forming a total of thirty-six second rectangular planes 5-3 on both sides. The second rectangular planes 5-3 correspond one-to-one with the first rectangular planes 3-16. The second rectangular planes 5-3 are in rolling contact with the needle rollers of the needle roller row 3-3. It should be noted that the gap at the joint of the semi-circular ring 5-1 is located in the non-load-bearing area and does not affect the continuous contact between the needle roller row 3-3 and the second rectangular plane 5-3. In this embodiment, the semi-circular ring 5-1 is made of 60Si2Mn spring steel with a thickness of 3mm.

[0054] The first adapter ring assembly 5 has eighteen rubber blocks 5-2. The eighteen rubber blocks 5-2 are evenly bonded and fixed around the inner wall of each semi-circular ring 5-1, with nine blocks bonded circumferentially around the inner wall of each semi-circular ring 5-1. The rubber blocks 5-2 are made of nitrile rubber with a Shore A hardness of 70. The outer diameter of the rubber blocks 5-2 is the same as the inner diameter of the semi-circular ring 5-1, and the inner diameter of the rubber blocks 5-2 is adapted to the installed compartment section. When the outer wall of the compartment section is cylindrical, the inner diameter wall formed by all the rubber blocks bonded to its inner ring after the two semi-circular rings are joined does not have a taper; when the outer wall of the compartment section is conical, the inner diameter wall formed by all the rubber blocks bonded to its inner ring after the two semi-circular rings are joined has a corresponding taper. When the first clamp assembly 3 engages with and locks into the mating part of the outer diameter wall of the first compartment, the rubber block 5-2 of the first adapter ring assembly 5 is compressed. Through friction, the first clamp assembly 3 tightens around the first compartment. Simultaneously, the first compartment can achieve circumferential rotation adjustment under the action of the half-circle turnbuckle bearing 3-5 and the half-circle inner ring 3-4. In this embodiment, the first compartment is cylindrical, the second compartment is conical, and the rubber block of the first adapter ring assembly 5 has a center thickness of 5mm and a taper of 0°. Figure 8 As shown in (a). The second adapter ring assembly 10 has a center thickness of 20mm and a taper of 20°, as shown in Figure 10. Figure 8 As shown in (b), the second adapter ring assembly 10 has the same structure and composition as the first adapter ring assembly 5.

[0055] Therefore, the adapter ring assembly is designed in a series. In the series design, the difference between each adapter assembly is the inner diameter and taper of the annular rubber block. When selecting, the corresponding adapter ring assembly can be selected according to the installation position diameter and taper of the adapter assembly on the aircraft section. The annular surface shape of the outer ring of the rubber block and the inner ring of the half-ring are consistent. Only the inner diameter and taper of the rubber block change with the section position. When the rubber block is interference-fitted with the aircraft section, it generates elastic deformation to achieve non-destructive clamping.

[0056] In the clamp assembly, the inner diameter convex V-shape of the semi-circular inner ring (3-4) matches the angle between the two inclined surfaces of the V-shape of the outer diameter concave V-shape of the semi-circular ring of the adapter ring assembly. Its design depends on the cone angle of the conical section of the adapted aircraft. and the coefficient of friction between the adapter ring assembly and the surface of the spacecraft compartment to be disassembled. The calculation and analysis process is as follows: Taking any radial section in the disassembly state as an example, after the axial thrust generated by disassembly is transmitted to the clamp assembly, the force is decomposed and transmitted to the adapter ring assembly through the needle rollers 3-3 on the inclined rectangular plane (i.e., the first rectangular plane 3-16) of the inner half-ring 3-4 in the clamp assembly. The resultant force on the inclined rectangular plane (the second rectangular plane 5-3) of the adapter ring assembly that contacts and engages with the needle rollers 3-3 is perpendicular to itself. This resultant force is transmitted along its own vector direction to the contact point between the adapter ring assembly and the surface of the vehicle section to be disassembled, denoted as... Meanwhile, the adapter ring assembly is also subject to frictional resistance from the surface of the spacecraft compartment to be disassembled. and support For the force decomposition of the adapter ring assembly at this cross section, please refer to the appendix of the instruction manual. Figure 12 .

[0057] Based on the self-locking principle of slider inclined surface friction, the included angle of the two V-shaped inclined surfaces in the adapter ring assembly is... The value of should satisfy the following formula:

[0058] In the formula, The angle between the two inclined planes in a V-shape. The cone angle of the aircraft compartment to be disassembled is set at 20°. For safety, a factor of 1.4 is used. The typical coefficient of friction between the fitting ring assembly and the surface of the vehicle compartment to be disassembled is 0.5. Substituting this value into the calculation, we obtain... In this embodiment, 164° is used. After force analysis and friction self-locking calculation, α=164° satisfies the self-locking requirement.

[0059] The assembly method of the above-mentioned non-destructive disassembly and assembly tooling for ultra-high-speed underwater vehicle sections of the present invention is as follows: 1. Assembly of the clamp assembly. Taking the first clamp assembly 3 as an example, in the unclosed state of the clamp assembly, install the two semi-circular turnbuckle bearings 3-5 into the dovetail grooves of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 respectively using set screws 3-8. Slide the dovetail protrusions of the two semi-circular inner rings 3-4 into the dovetail groove ends of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7 respectively. Install the thirty-six needle rollers 3-3 onto the obliquely placed first rectangular planes 3-16 of the two semi-circular inner rings 3-4 using set screws 3-8. Align the hinge ends of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7, and insert the pin 3-1 into the hinge hole, without locking it at this time. The second clamp assembly 12 is assembled in the same way.

[0060] 2. Installation of Synchronous Gear Ring Components. Taking the first synchronous gear ring component 2 as an example, with the first clamp component 3 in the open state, slide the two semi-circular gear rings 2-1 into the mounting grooves 3-15 on the same side (outer side) of the upper semi-circular outer ring 3-2 and the lower semi-circular outer ring 3-7, respectively, so that the mating ends of the two semi-circular gear rings 2-1 are aligned; then close the first clamp component 3, insert the positioning pin 3-9 into the positioning hole 3-11 at the locking end, and install the locking piece 3-6 into the U-shaped groove 3-10 and lock it. In the same way, install the second synchronous gear ring component 4 inside the first clamp component 3, install the third synchronous gear ring component 11 inside the second clamp component 12, and install the fourth synchronous gear ring component 13 outside the second clamp component 12. Let the facing sides of the first clamp component 3 and the opposite sides of the second clamp component 12 be their respective inner sides, and their opposite sides be their respective outer sides.

[0061] 3. Assembly of the jacking assembly. Taking the first jacking assembly 1-1 as an example, install the first thrust bearing 1-1-6, the hollow push rod 1-1-2 (with the flanged end facing inward), and the second thrust bearing 1-1-5 sequentially into the large cylindrical section of the outer shell 1-1-1; then screw the end cap 1-1-3 onto the external thread of the outer shell 1-1-1 and press the second thrust bearing 1-1-5 into place; finally, screw the threaded foot washer 1-1-4 onto the threaded end of the hollow push rod 1-1-2. The assembly method for the remaining jacking assemblies is the same as that for the first jacking assembly 1-1.

[0062] 4. Overall Assembly. First, screw the twelve pusher components of the second pusher unit 6 and the third pusher unit 9 into the six trapezoidal lead screws respectively, and place them between the two clamping assemblies, so that the threaded pads in the second pusher unit 6 face the inner end face of the boss 3-12 of the first clamping assembly 3, and the threaded pads in the third pusher unit 9 face the inner end face of the boss of the second clamping assembly 12. Then, pass the two ends of the six lead screws through the corresponding lug holes of the first clamping assembly 3 and the second clamping assembly 12 respectively; finally, ... The twelve pusher components of the first pusher unit 1 and the fourth pusher unit 14 are screwed into the two ends of the six lead screws, so that the threaded pads of the first pusher unit 1 face the outer end face of the boss 3-12 on the first clamp assembly 3, and the threaded pads of the fourth pusher unit 14 face the outer end face of the boss on the second clamp assembly 12; the axial position of each pusher unit is adjusted so that the threaded pads press against the end face of the corresponding boss, and the gear tooth section of the housing of each pusher component meshes with the corresponding synchronous gear ring assembly.

[0063] The method for using the non-destructive disassembly and assembly tooling for ultra-high-speed underwater vehicle sections described above in this invention is as follows: 1. Tooling Installation. Based on the diameter and taper of the tooling fittings for the sections to be disassembled and assembled on the aircraft, select two sets of corresponding adapter ring assemblies. Taking the disassembly and assembly of the first and second sections as an example, select the first adapter ring assembly 5 for the first section fitting and the second adapter ring assembly 10 for the second section fitting. Place the first adapter ring assembly 5 on the first installation position of the first section and the second adapter ring assembly 10 on the second installation position of the second section. Release the locking of the first clamp assembly 3 and the second clamp assembly 12, and open them around their respective hinge pins. Clamp the first clamp assembly 3 and the second clamp assembly 12 onto the outer rings of the first adapter ring assembly 5 and the second adapter ring assembly 10, respectively. Then, insert a positioning pin into the locking end of both, and then insert the locking member into the U-shaped groove and tighten it with an open-end wrench. This causes the clamp assembly to radially press against the adapter ring assembly, resulting in elastic deformation of the rubber block under pressure, resulting in an elastic interference fit with the surface of the aircraft section.

[0064] 2. When assembling the compartments (the first compartment and the second compartment are joined), disengage the second pusher unit 6 from the second synchronous gear ring assembly 4, and disengage the third pusher unit 9 from the third synchronous gear ring assembly 11. To disengage the second pusher unit 6 from the second synchronous gear ring assembly 4, first drive any one of the pusher components in the second pusher unit 6 counterclockwise using an open-end wrench. Under the influence of the second synchronous gear ring assembly 4, all the pusher components of the second pusher unit 6 will rotate synchronously and retract approximately 15mm along the trapezoidal screw in a direction away from the first clamp assembly 3, until they disengage from the second synchronous gear ring assembly 4. Similarly, to disengage the third pusher unit 9 from the third synchronous gear ring assembly 11, drive any one of the pusher components in the third pusher unit 9 counterclockwise, causing all the pusher components of the third pusher unit 9 to move away from the inner side of the second clamp assembly 12, until they disengage from the third synchronous gear ring assembly 11. At this time, the first pusher unit 1 and the first synchronous gear ring assembly 2 are engaged, and the fourth pusher unit 14 and the fourth synchronous gear ring assembly 13 are engaged.

[0065] To achieve circumferential alignment, the compartments can be manually rotated while radially clamped to adjust the circumferential phase of the two compartments.

[0066] Then, alternately drive any one of the pusher components in the first pusher subunit 1 and the fourth pusher subunit 14 clockwise, causing the two clamping assemblies to move towards each other. Taking the first pusher subunit 1 as an example, rotating the outer shell of one of its pusher components clockwise causes all six pusher components of the first pusher subunit 1 to rotate synchronously under the drive of the first synchronous gear ring assembly 2. The threaded pads of each pusher component press against the outer boss end face of the first clamping assembly 3, pushing the first clamping assembly 3 towards the second clamping assembly 12. Then, drive any one of the pusher components in the fourth pusher unit 14 clockwise, pushing the second clamping assembly 12 towards the first clamping assembly 3. The two clamping assemblies move towards each other, causing the two adapter ring assemblies and the two compartments to close. During the movement towards each other, the V-shaped force component structure converts the axial thrust into radial locking force, causing the adapter ring assembly to continuously press against the surface of the compartment.

[0067] 3. During compartment separation (separation of the first and second compartments), disengage the first pusher unit 1 from the first synchronous gear ring assembly 2, and disengage the fourth pusher unit 14 from the fourth synchronous gear ring assembly 13. When disengaging the first pusher unit 1 from the first synchronous gear ring assembly 2, drive any one of the pusher components in the first pusher unit 1 counterclockwise, moving the first pusher unit 1 away from the first clamp assembly 3 until it disengages from the first synchronous gear ring assembly 2. Similarly, when disengaging the fourth pusher unit 14 from the fourth synchronous gear ring assembly 13, drive any one of the pusher components in the fourth pusher unit 14 counterclockwise, moving the fourth pusher unit 14 away from the second clamp assembly 12 until it disengages from the fourth synchronous gear ring assembly 13. At this time, the second pusher unit 6 is engaged with the second synchronous gear ring assembly 4, and the third pusher unit 9 is engaged with the third synchronous gear ring assembly 11. Alternately rotate any one of the pusher components in the second pusher subunit 6 and the third pusher subunit 9 clockwise, causing the first clamp assembly 3 and the second clamp assembly 12 to move in opposite directions, thus completing the separation of the two compartments. Specifically, rotating any one of the pusher components in the second pusher subunit 6 clockwise causes all the pusher components in the second pusher subunit 6 to rotate synchronously under the drive of the second synchronizing gear ring assembly 4. Each pusher component in the second pusher subunit 6 presses against the inner end face of the boss of the first clamp assembly 3, pushing the first clamp assembly 3 away from the second clamp assembly 12. Then, drive any one of the pusher components in the third pusher unit 9 clockwise, pushing the second clamp assembly 12 away from the first clamp assembly 3. The two clamp assemblies move in opposite directions, thus completing the separation of the two adapter ring assemblies and the two compartments.

[0068] 4. Tooling Disassembly. After assembly or disassembly, the tooling needs to be removed. When disassembling the tooling, loosen all the push sub-units counterclockwise to disengage them from the corresponding synchronous gear ring assemblies. Continue to rotate all the push components of the first push sub-unit 1 counterclockwise until they are all disengaged from the trapezoidal screw unit; move the trapezoidal screw grid unit axially to disengage it from the ear hole of the first clamp assembly 3. Loosen and remove the positioning pin and locking piece of the first clamp assembly 3, and rotate the half-turn outer ring of the first clamp assembly 3, as well as the first synchronous gear ring assembly 2 and the second synchronous gear ring assembly 4, respectively, so that their mating end faces are aligned with the mating end faces of the half-turn inner ring. Open the first clamp assembly 3 and remove the first adapter ring assembly 5. There is no need to remove the trapezoidal screw grid unit from the ear hole of the second clamp assembly 12. Remove the positioning pin and locking piece of the second clamp assembly 12, rotate the half-circle outer ring of the second clamp assembly 12 and the third synchronous gear ring assembly 11 and the fourth synchronous gear ring assembly 13 respectively, so that the mating end faces of both halves are aligned with the mating end faces of the half-circle inner ring, open the second clamp assembly 12 and remove the second adapter ring assembly 10.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-destructive disassembly and assembly fixture for a section of an ultra-high-speed underwater vehicle, characterized in that, include: The components include: clamp unit, synchronous gear ring unit, jacking unit, trapezoidal lead screw grid unit, and adapter ring unit; among which: The clamp unit includes a first clamp assembly and a second clamp assembly with identical structures. The two clamp assemblies can be detachably clamped onto their respective disassembly and assembly sections, and the sections can rotate circumferentially relative to the clamp assemblies. The synchronous gear ring unit includes four sets of synchronous gear ring assemblies with the same structure. Two sets are symmetrically installed on both sides of the first clamp assembly, and the other two sets are symmetrically installed on both sides of the second clamp assembly. The synchronous gear ring assembly is a gear ring with an outer gear ring on its outer diameter. The synchronous gear ring assembly is coaxial and rotatably connected to the clamp assembly on which it is installed. The trapezoidal screw grid unit includes two sets of trapezoidal screw grids with the same structure. The trapezoidal screw grid includes multiple parallel trapezoidal screws evenly distributed in the same semicircular arc and an arc-shaped structure that fixes the multiple trapezoidal screws. The two ends of the trapezoidal screws are respectively inserted into the first clamp assembly and the second clamp assembly. The two trapezoidal screw grids are arranged opposite to each other to form an annular grid around the clamp unit. The jacking unit includes four sets of jacking sub-units with identical structures. Each set of jacking sub-units corresponds to a set of synchronous gear ring assemblies. Each set of jacking sub-units includes multiple jacking components. The jacking components of each set of jacking sub-units are installed one-to-one with the trapezoidal lead screw. The jacking components are fitted onto the outer diameter of the trapezoidal lead screw, and their interiors form a helical transmission pair with the trapezoidal lead screw. The outer diameter of the jacking components is provided with gear teeth for meshing with the outer gear ring of the synchronous gear ring assembly. The two sets of jacking sub-units on both sides of the same clamp assembly are arranged opposite each other, and when the same set of jacking sub-units works, they generate synchronous axial thrust on the clamp assembly. The adapter ring unit includes two sets of adapter ring assemblies, which are installed one-to-one with two sets of clamp assemblies. The adapter ring assembly is installed between the clamp assembly and the compartment, and it is used for elastic adaptation between the inner ring of the clamp assembly and the outer ring of the compartment.

2. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 1, characterized in that, The first clamp assembly includes: Two semi-circular outer rings are hinged at one end and detachably locked at the other end, forming a complete ring structure after locking. The inner diameter of each of the two semi-circular outer rings is provided with a semi-annular dovetail groove, which forms a complete dovetail groove after the two semi-circular outer rings are locked together. The two semi-circular outer rings are symmetrically provided with mounting slots on both sides of the axial direction for installing the synchronous gear ring assembly. Two semi-circular inner rings are rolled and installed in the dovetail groove through semi-circular turnbuckle bearings. After the two semi-circular outer rings are locked together, the two semi-circular inner rings form a complete ring. The semi-circular turnbuckle bearings are fixed to the outer diameter wall of the dovetail groove. The outer diameter of the semi-circular inner rings is in rolling contact with the semi-circular turnbuckle bearings. The inner diameter of the semi-circular inner rings is exposed outside the dovetail groove, and the axial section of its inner diameter wall is a convex V-shape. Multiple first rectangular planes are evenly distributed around each V-shaped inclined surface of the convex V-shape. And multiple needle roller rows, which are installed one-to-one with the first rectangular plane. The needle roller rows are fixed on the rectangular plane. The needle roller axis of the needle roller row is perpendicular to the central axis of the half-circle inner ring. The needle roller rows are used to allow the two half-circle inner rings and the adapter ring unit to roll axially along the V-shaped inclined plane.

3. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 2, characterized in that, The two semi-circular outer rings are identical in structure except at the hinge. Multiple bosses with ear holes are evenly distributed circumferentially on the outer diameter wall of the two semi-circular outer rings. The ear holes are used to install the trapezoidal lead screw, and the bosses are used to provide axial positioning for the push assembly.

4. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 3, characterized in that, The push component includes: The outer casing is a hollow rotating body fitted onto a trapezoidal lead screw. One end of its outer diameter has a regular hexagonal structure, serving as the wrench's working section. The middle of the outer diameter has teeth for meshing with the synchronous gear ring assembly. The other end of the outer diameter has an external thread. The inner hole of the outer casing is a stepped hole, consisting of a small diameter section, a trapezoidal internal thread section, and a large diameter section from the wrench's working section side. The small diameter section has a clearance fit with the trapezoidal lead screw, the trapezoidal internal thread section is used for threaded meshing with the trapezoidal lead screw, and the inner diameter of the large diameter section is larger than that of the small diameter section. The hollow push rod is a hollow cylindrical structure with an outward flange at one end and an external thread at the other end. The hollow push rod is located inside the large diameter section and is fitted onto the trapezoidal threaded rod, with its flange end facing the trapezoidal internal thread section of the outer shell. The first thrust bearing is coaxially mounted on the large-diameter section, located between the inner end stepped surface of the large-diameter section and the flange of the hollow push rod; The second thrust bearing is coaxially mounted on the body of the hollow push rod. One end of the bearing contacts the inner end face of the flange of the hollow push rod, and the other end is axially limited by the end cap. End cap, which is threaded to the external threaded end of the housing, is used to axially press the second thrust bearing; And a threaded foot pad, which is fitted onto the external thread of the hollow push rod and threadedly connected to it. The outer diameter of the threaded foot pad is larger than the ear hole on the half-circle outer ring boss. The threaded foot pad is in close contact with the boss of the half-circle outer ring. The gap between the push assembly and the boss is adjusted by screwing the threaded foot pad.

5. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 2, characterized in that, The inner half-ring is provided with a dovetail protrusion that matches the dovetail groove of the outer half-ring. The dovetail protrusion is embedded in the dovetail groove. The inner half-ring has V-shaped concave slopes on both sides that match the protrusions on both sides of the dovetail groove of the outer half-ring. The V-shaped concave slopes are coated with polytetrafluoroethylene.

6. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 2, characterized in that, The synchronous gear ring assembly includes two semi-circular gear rings. The two semi-circular gear rings are coplanarly installed in the mounting grooves on the same side of the two semi-circular outer rings. The mounting grooves are annular grooves with rectangular cross-sections. The annular grooves are clearance-fitted with the protrusions set in the inner diameter of the semi-circular gear rings. The semi-circular outer rings form an axial limit on the semi-circular gear rings. After the two semi-circular outer rings are mated and locked, the two semi-circular gear rings of the synchronous gear ring assembly form a complete ring.

7. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 2, characterized in that, The adapter ring assembly includes two half-ring bodies and multiple rubber blocks; The two semi-circular rings are thin-walled semi-circular structures made of spring steel. They are joined together to form a complete ring, and a certain gap is set at the joint. The outer radial section of the semi-circular ring is concave V-shaped, which matches the convex V-shaped inner diameter of the inner ring of the semi-circular ring. The V-shaped angles are consistent. Multiple second rectangular planes are evenly distributed around each V-shaped inclined surface of the concave V-shape. The second rectangular planes correspond one-to-one with the first rectangular planes. The second rectangular planes make rolling contact with the needle rollers of the needle roller row. Multiple rubber blocks are uniformly bonded and fixed along the inner circumference of the semi-circular ring. When two semi-circular rings are joined together, the inner ring formed by all the rubber blocks bonded to the inner ring is adapted to the outer wall of the compartment to which the fitting ring assembly is installed. When the outer wall of the compartment is cylindrical, the inner ring formed by the rubber blocks does not have a taper. When the outer wall of the compartment is conical, the inner ring formed by the rubber blocks has a corresponding taper. The outer diameter of the rubber blocks is fixed, and the inner diameter is serially adapted according to the size and shape of the outer wall of the compartment.

8. The non-destructive disassembly and assembly fixture for ultra-high-speed underwater vehicle sections according to claim 1, characterized in that, Each set of trapezoidal lead screw grids has three trapezoidal lead screws. The two ends of the trapezoidal lead screws are trapezoidal threads, and the middle is a smooth rod structure. The arc structure is fixed to the middle smooth rod of the trapezoidal lead screw.

9. A method for determining the included angle of the V-shaped inclined plane of the outer diameter of the semi-circular ring body in the ring assembly according to claim 7, characterized in that, The angle between the two inclined planes of the V-shape should satisfy the following: In the formula, The angle between the two inclined planes in a V-shape. For the cone angle of the aircraft compartment to be disassembled and assembled, For safety reasons, Typical values ​​of friction coefficient between the ring assembly and the surface of the vehicle compartment to be disassembled.

10. A method of using the non-destructive disassembly and assembly tooling for ultra-high-speed underwater vehicle sections as described in any one of claims 1-8, characterized in that, Includes the following steps: Select two sets of adapter ring assemblies, namely the first adapter ring assembly and the second adapter ring assembly, according to the diameter and taper of the tooling mating part of the vehicle's compartment to be disassembled and assembled. Release the locking of the first clamp assembly and the second clamp assembly, and open them; The first and second adapter ring assemblies are respectively fitted onto the mating parts of the corresponding compartments of the aircraft to be disassembled and assembled, and the first and second clamp assemblies are closed and pressed against the outer rings of the first and second adapter ring assemblies respectively. Then, the two sets of clamp assemblies are locked together. At this time, the rubber blocks of the two sets of adapter ring assemblies are deformed under pressure and elastically press against the outer diameter wall of the compartment. Let the facing sides of the first clamp assembly and the second clamp assembly be their respective inner sides, and the opposite sides be their respective outer sides; let the four sets of pusher units on the outer and inner sides of the first clamp assembly and the inner and outer sides of the second clamp assembly be the first pusher unit, the second pusher unit, the third pusher unit, and the fourth pusher unit, respectively; let the four sets of synchronous gear ring assemblies on the outer and inner sides of the first clamp assembly and the inner and outer sides of the second clamp assembly be the first synchronous gear ring assembly, the second synchronous gear ring assembly, the third synchronous gear ring assembly, and the fourth synchronous gear ring assembly, respectively. When assembling the compartments, the first pusher unit is engaged with the first synchronous gear ring assembly, and the fourth pusher unit is engaged with the fourth synchronous gear ring assembly. Disengage the second pusher unit from the second synchronous gear ring assembly, and disengage the third pusher unit from the third synchronous gear ring assembly; Alternately rotate any push assembly in the first push subunit and any push assembly in the fourth push subunit clockwise to make the two clamp assemblies move towards each other, thereby driving the two compartments to close. When splitting the compartment, the second pusher unit is engaged with the second synchronous gear ring assembly, and the third pusher unit is engaged with the third synchronous gear ring assembly; Disengage the first pusher unit from the first synchronous gear ring assembly, and disengage the fourth pusher unit from the fourth synchronous gear ring assembly. Alternately rotate clockwise any push assembly in the second push subunit and any push assembly in the third push subunit to make the two clamp assemblies move in opposite directions, thereby driving the two compartments to complete the separation. After the two sections are assembled or disassembled, the assembly and disassembly tools are removed.

Images