A UUV disposable payload mounting release device

Abstract

The present invention discloses a UUV disposable payload mounting and releasing device, comprising: a fixed layer, a secondary separation layer, a primary separation layer, a payload mounting assembly and a cable separation mechanism; the upper mission payload is mounted on the secondary separation layer through the payload mounting assembly, and the lower mission payload is mounted on the primary separation layer through the payload mounting assembly; the fixed layer is mounted below the UUV platform; the secondary separation layer carrying the upper mission payload is detachably mounted below the fixed layer, and the primary separation layer carrying the lower mission payload is detachably mounted below the secondary separation layer; the present invention adopts a modular design, which can meet the requirements of the cable operation of the disposable underwater mission payload and the payload abandonment after the operation is completed, thereby realizing the reliable mounting and rapid release of the UUV underwater disposable mission payload, and has the characteristics of high carrying capacity, strong flow resistance, and good protection capability for the mounted mission payload.

Description

Technical Field

[0001] The present invention belongs to the technical field of underwater unmanned vehicles, and in particular relates to a UUV disposable payload mounting and releasing device. Background Art

[0002] Unmanned underwater vehicles (UUVs) are widely used in various fields, including underwater surveys, seafloor exploration, and submarine search and rescue. Demand for large, multifunctional UUVs is also increasing. Given the limited internal space within a UUV, the most convenient way to achieve multiple functions on a single UUV is to use external payloads. Reliable mounting and rapid, stable release of multiple payloads, as well as minimizing the impact on the UUV platform during release and operation, are pressing challenges. Summary of the Invention

[0003] In view of this, the present invention provides a UUV disposable payload mounting and releasing device, which adopts a modular design and can meet the cable operation of disposable underwater mission payloads and the payload abandonment after the operation is completed, thereby realizing the reliable mounting and rapid release of UUV underwater disposable mission payloads, and has the characteristics of high carrying capacity, strong flow resistance, and good protection capability for the mounted mission payload.

[0004] The present invention is achieved through the following technical solutions:

[0005] A UUV disposable payload mounting and releasing device, comprising: a fixing layer, a secondary separation layer, a primary separation layer, a payload mounting assembly, and a cable separation mechanism;

[0006] The mission payloads to be mounted are upper mission payload and lower mission payload respectively;

[0007] The upper mission payload is installed on the secondary separation layer through the payload installation assembly, and the lower mission payload is installed on the primary separation layer through the payload installation assembly;

[0008] The fixed layer is mounted below the UUV platform; the secondary separation layer carrying the upper mission payload is detachably mounted below the fixed layer, and the primary separation layer carrying the lower mission payload is detachably mounted below the secondary separation layer;

[0009] Both cable separation mechanisms are installed on the fixed layer. One end of one cable separation mechanism is optically connected to the UUV platform through a communication cable, and the other end is optically connected to the upper mission payload through a communication cable, so as to realize signal interaction between the UUV platform and the upper mission payload; one end of the other cable separation mechanism is optically connected to the UUV platform through a communication cable, and the other end is optically connected to the lower mission payload through a communication cable, so as to realize signal interaction between the UUV platform and the lower mission payload.

[0010] Furthermore, the fixed layer includes: a fixed layer frame and explosive bolts; the fixed layer frame is installed below the UUV platform; a plurality of explosive bolts are installed on the fixed layer frame; each explosive bolt is arranged in a vertical direction;

[0011] The secondary separation layer includes: a disposable separation frame A and a guide connecting rod A; the bottoms of several guide connecting rods A are fixed to a circle around the outer edge of the top of the disposable separation frame A, and each guide connecting rod A is arranged in a vertical direction. The tops of the guide connecting rods A are connected one-to-one with some explosive bolts on the fixed layer frame to achieve a detachable connection between the secondary separation layer and the fixed layer, and the top surface of the disposable separation frame A is butted against the bottom surface of the fixed layer frame.

[0012] The first-level separation layer includes: a disposable separation frame B and a guide connecting rod B; the bottoms of several guide connecting rods B are fixed on a circle of the outer edge of the top of the disposable separation frame B, and each guide connecting rod B is arranged in the vertical direction. After the top of the guide connecting rod B passes through the second-level separation layer, it is connected one-to-one with the remaining explosive bolts on the fixed layer frame to realize the detachable connection between the first-level separation layer and the fixed layer, and the top surface of the disposable separation frame B is butted against the bottom surface of the disposable separation frame A.

[0013] Furthermore, a mounting rack is provided on the top of the disposable separation frame A. The upper mission payload to be mounted is installed on the mounting rack on the top of the disposable separation frame A of the secondary separation layer through the payload mounting assembly, so that the upper mission payload is located in the accommodation space formed by the fixed layer frame of the fixed layer;

[0014] A mounting frame is provided at the bottom of the disposable separation frame B. The lower-layer task load to be mounted is installed on the mounting frame at the bottom of the disposable separation frame B of the first-level separation layer through a load mounting assembly, so that the lower-layer task load is located in the accommodation space formed between the disposable separation frame A of the second-level separation layer and the disposable separation frame B of the first-level separation layer.

[0015] Furthermore, each load mounting assembly includes a load support seat and a secondary separation mechanism; the load support seat is a semi-annular support structure, and the outer circumferential surface of the semi-annular support structure is provided with a mounting boss, and a compression spring is installed in the mounting boss, one end of the compression spring is fixed in the mounting boss, and the other end of the compression spring is free; every two load support seats are arranged opposite to each other to form an annular clamp, which is clamped on the outer circumferential surface of the upper task load or the lower task load. At this time, the other end of the compression spring contacts the outer circumferential surface of the upper task load or the lower task load, and the compression spring is in a compressed state;

[0016] For each annular clamp of the upper task load, the mounting boss of one load support seat is fixed on the fixed layer frame, and the mounting boss of the other load support seat is fixed on the upper surface of the mounting frame of the disposable separation frame A; for each annular clamp of the lower task load, the mounting boss of one load support seat is fixed on the lower surface of the mounting frame of the disposable separation frame A, and the mounting boss of the other load support seat is fixed on the upper surface of the mounting frame of the disposable separation frame B;

[0017] The secondary separation mechanism is a U-shaped cassette, and each mission load is equipped with a secondary separation mechanism; for the upper mission load, the middle part of the secondary separation mechanism is clamped on the outer circumference of the upper mission load, one end of the secondary separation mechanism is pinned to the mounting bracket of the disposable separation frame A, and the other end of the secondary separation mechanism is detachably connected to the mounting bracket of the disposable separation frame A; the secondary separation mechanism is mechanically connected to the communication cable of the upper mission load. When the integrated structure consisting of the upper mission load and the secondary separation layer sinks, the communication cable is stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism and the disposable separation frame A is pulled out, separating it from the disposable separation frame A;

[0018] For the lower task load, the middle part of the secondary separation mechanism is clamped on the outer circumference of the lower task load, one end of the secondary separation mechanism is pinned to the mounting frame of the disposable separation frame B, and the other end of the secondary separation mechanism is detachably connected to the mounting frame of the disposable separation frame B; the secondary separation mechanism is mechanically connected to the communication cable of the lower task load. When the integrated structure composed of the lower task load and the first-level separation layer sinks, the communication cable is stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism and the disposable separation frame B is pulled out, and separated from the disposable separation frame B.

[0019] Furthermore, each cable separation mechanism includes an electromagnetic separation mechanism, an optoelectronic hybrid connector plug and an optoelectronic hybrid connector socket; the optoelectronic hybrid connector socket is fixed on the fixed layer and communicates with the UUV platform through the optoelectronic hybrid cable, and the optoelectronic hybrid connector plug is connected to the upper-layer mission payload or the lower-layer mission payload through the optoelectronic hybrid cable. When the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket are connected, optical and electrical communication between the upper-layer mission payload / lower-layer mission payload and the UUV platform can be realized; the electromagnetic separation mechanism is used to realize the separation of the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket.

[0020] Furthermore, the fixed layer frame is provided with a plurality of limiting holes, and each limiting hole is located one-to-one below the explosive bolt; a plurality of guide connecting rods A respectively pass through the corresponding limiting holes of the fixed layer frame and are connected to some explosive bolts; the guide connecting rods B respectively pass through the corresponding limiting holes of the secondary separation layer and the fixed layer frame and are connected to the remaining explosive bolts.

[0021] Furthermore, the disposable separation frame A, the disposable separation frame B, and the fixed layer frame are all metal frame structures, and are all covered with fairings, which can be conformal to the UUV platform.

[0022] Beneficial effects:

[0023] (1) The present invention adopts a modular design scheme, which can reliably mount and stably and quickly release two sets of mission payloads through a fixed layer, a secondary separation layer, and a primary separation layer. The mission payload can be operated with a cable after being released underwater. After the operation is completed, the one-time mission payload can be discarded without affecting the release of the second set of mission payloads or the heading of the UUV platform. At the same time, it has the characteristics of easy maintenance, low cost of use, high carrying capacity, strong anti-current ability, and good protection capability for the mounted underwater mission payloads. In addition, the present invention adopts a modular design and can form a series of products according to actual needs.

[0024] (2) The secondary separation layer and the primary separation layer of the present invention are mounted in an upper and lower stacking manner. The upper and lower stacking load mounting method reduces the area occupied by the external load without affecting the release of the upper and lower sets of loads, and meets the mounting requirements of multiple sets of mission loads.

[0025] (3) A compression spring is installed in the load support seat of the present invention, one end of the compression spring is fixed in the load support seat, and the other end of the compression spring is in contact with the outer circumferential surface of the upper task load or the lower task load, and the compression spring is in a compressed state; when the task load begins to be released, it can provide an initial separation force in the load release direction to accelerate the separation of the task load.

[0026] (4) The fixed layer frame of the present invention is provided with a plurality of limiting holes. The guide connecting rod A and the guide connecting rod B respectively pass through the corresponding limiting holes of the fixed layer frame and are connected with the explosive bolts. This ensures that when the task load and the frame (fixed layer frame, disposable separation frame A) are not completely separated, the task load does not move in any direction within the frame, thereby preventing collision with the frame.

[0027] (5) The disposable separation frame A, disposable separation frame B and fixed layer frame of the present invention are all metal frame structures and are covered with fairings. They can conform to the UUV platform, have high load-bearing capacity and strong flow resistance, can sail with the UUV platform, and have good protection capabilities for the mounted underwater mission payload. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system composition diagram of the present invention;

[0029] Figure 2 It is a hierarchical diagram of the system composition of the present invention;

[0030] Figure 3 Schematic diagram of the separation process of the primary separation layer and the secondary separation layer of the present invention;

[0031] Figure 4 The lower mission load of the present invention is separated from the disposable separation frame;

[0032] Figure 5 Schematic diagram of the jettisoning process of the mission payload of the present invention;

[0033] Among them, 1-fixed layer, 2-secondary separation layer, 3-first-level separation layer, 4-fixed layer frame, 5-explosive bolt, 6-cable separation mechanism, 7-disposable separation frame A, 8-secondary fairing, 9-guide connecting rod A, 10-load support seat, 11-secondary separation mechanism, 12-disposable separation frame B, 13-guide connecting rod B, 14-first-level fairing, 15-upper mission payload, 16-lower mission payload, 17-UUV platform, 18-photoelectric hybrid cable. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0035] This embodiment provides a UUV disposable payload mounting release device, see attached Figure 1-2 , including: a fixed layer 1, a secondary separation layer 2, a primary separation layer 3, a load installation component and a cable separation mechanism 6;

[0036] In this embodiment, there are two mission payloads to be mounted, namely upper mission payload 15 and lower mission payload 16;

[0037] The upper mission payload 15 is installed on the secondary separation layer 2 through the payload installation assembly, and the lower mission payload 16 is installed on the primary separation layer 3 through the payload installation assembly;

[0038] The fixed layer 1 is mounted below the UUV platform 17; the secondary separation layer 2 carrying the upper mission payload 15 is mounted below the fixed layer 1, and the primary separation layer 3 carrying the lower mission payload 16 is mounted below the secondary separation layer 2;

[0039] The secondary separation layer 2 and the primary separation layer 3 are mounted in a stacked manner, with the lower mission payload 16 released first, followed by the upper mission payload 15. The release and operation of the upper and lower mission payloads are independent of each other and do not interfere with each other.

[0040] Both cable separation mechanisms 6 are installed on the fixed layer 1, one end of one cable separation mechanism 6 is optically connected to the UUV platform 17 through a communication cable, and the other end is optically connected to the upper mission payload 15 through a communication cable, so as to realize signal interaction between the UUV platform 17 and the upper mission payload 15; one end of the other cable separation mechanism 6 is optically connected to the UUV platform 17 through a communication cable, and the other end is optically connected to the lower mission payload 16 through a communication cable, so as to realize signal interaction between the UUV platform 17 and the lower mission payload 16; the communication cable of this embodiment adopts a load-bearing optoelectronic hybrid cable 18.

[0041] The specific structure is:

[0042] The fixed layer 1 is an installation module for electrical equipment such as cables, and includes: a fixed layer frame 4, explosive bolts 5 and a fixed layer fairing;

[0043] The top of the fixed layer frame 4 is provided with a mounting interface, and the fixed layer frame 4 is installed under the UUV platform 17 through the mounting interface (that is, the disposable payload mounting release device is connected to the UUV platform 17 through the mounting interface), and can be disassembled and installed as needed; a number of explosive bolts 5 are installed on the fixed layer frame 4; eight explosive bolts 5 are used in this embodiment; each explosive bolt 5 is arranged in the vertical direction; the fixed layer frame 4 is also provided with a number of limiting holes, and each limiting hole is located one-to-one below the explosive bolt 5; the fixed layer frame 4 can be recovered with the UUV platform 17, and electrical equipment, cables, and other equipment are all fixed on the fixed layer frame 4, reducing the impact of electrical equipment, cables, etc. on load release and reducing the release cost of the mission load;

[0044] The fixed layer fairing is covered on the outer side of the fixed layer frame 4;

[0045] The secondary separation layer 2 is a loading module for the upper mission payload 15, including: a disposable separation frame A7, a guide connecting rod A9 and a secondary fairing 8;

[0046] A mounting frame is provided on the top of the disposable separation frame A7; the bottoms of several guide connecting rods A9 are fixed to a circle of the outer edge of the top of the disposable separation frame A7 by screws, and each guide connecting rod A9 is arranged in the vertical direction, and an interface for connecting to the explosive bolt 5 is reserved at the top of each guide connecting rod A9. This embodiment adopts four guide connecting rods A9, and after the four guide connecting rods A9 pass through the corresponding limiting holes of the fixed layer frame 4, they are connected to the explosive bolt 5 through the interface on the top, so as to realize the detachable connection between the secondary separation layer 2 and the fixed layer 1, and the top surface of the disposable separation frame A7 is butted against the bottom surface of the fixed layer frame 4; wherein, the secondary separation layer 2 is connected to the fixed layer 1 by means of 2 connection points in the front and back (i.e., a total of 4 connection points), and each connection point is mainly composed of 1 guide connecting rod A9 and 1 explosive bolt 5. The guide connecting rods and explosive bolts at 4 positions can realize reliable connection and rapid and stable release of the secondary separation layer 2 and the fixed layer 1;

[0047] The secondary fairing 8 is covered on the outer side of the disposable separation frame A7;

[0048] The first-level separation layer 3 is a loading module for the lower-level mission payload 16, including: a disposable separation frame B12, a guide connecting rod B13 and a first-level fairing 14;

[0049] A mounting frame is provided at the bottom of the disposable separation frame B12; the bottoms of several guide connecting rods B13 are fixed to a circle of the outer edge of the top of the disposable separation frame B12 by screws, and each guide connecting rod B13 is arranged in the vertical direction, and the top of each guide connecting rod B13 is reserved with an interface for connecting with the explosive bolt 5. This embodiment adopts four guide connecting rods B13. After the four guide connecting rods B13 pass through the corresponding limiting holes of the secondary separation layer 2 and the fixed layer frame 4 respectively, they are connected with the explosive bolt 5 through the interface on the top to realize the detachable connection between the primary separation layer 3 and the fixed layer 1, and the top surface of the disposable separation frame B12 is butted against the bottom surface of the disposable separation frame A7; wherein, the primary separation layer 3 is connected to the fixed layer 1 by means of 2 connection points in the front and back (i.e., a total of 4 connection points), and each connection point is mainly composed of 1 guide connecting rod B13 and 1 explosive bolt 5. The guide connecting rods and explosive bolts at 4 positions can realize reliable connection and rapid and stable release of the primary separation layer 3 and the fixed layer 1;

[0050] The first-stage fairing 14 is covered on the outer side of the disposable separation frame B12;

[0051] Among them, the disposable separation frame A7 and the disposable separation frame B12, and the fixed layer frame 4 are all metal frame structures, and are covered with fairings, which can conform to the UUV platform 17, have high load-bearing capacity and strong flow resistance, can sail with the UUV platform 17, and have good protection capabilities for the mounted mission payload;

[0052] The upper mission payload 15 to be mounted is installed on the mounting bracket on the top of the disposable separation frame A7 of the secondary separation layer 2 through the payload mounting assembly, so that the upper mission payload 15 is located in the accommodation space formed by the fixed layer frame 4 of the fixed layer 1;

[0053] The lower mission payload 16 to be mounted is mounted on the mounting bracket at the bottom of the disposable separation frame B12 of the first separation layer 3 via the payload mounting assembly, so that the lower mission payload 16 is located in the accommodation space formed between the disposable separation frame A7 of the second separation layer 2 and the disposable separation frame B12 of the first separation layer 3;

[0054] The cable separation mechanism 6 is mainly composed of an electromagnetic separation mechanism, an optoelectronic hybrid connector plug, and an optoelectronic hybrid connector socket. The optoelectronic hybrid connector socket is fixed to the fixed layer frame 4 and communicates with the UUV platform 17 via the optoelectronic hybrid cable 18. The optoelectronic hybrid connector plug is connected to the upper mission payload 15 or the lower mission payload 16 via the optoelectronic hybrid cable 18. When the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket are connected, optical and electrical communication can be achieved between the upper mission payload 15 / lower mission payload 16 and the UUV platform 17; the electromagnetic separation mechanism is used to achieve separation of the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket;

[0055] Among them, each load mounting assembly includes a load support seat 10 and a secondary separation mechanism 11; the load support seat 10 can be adjusted in shape according to the shape of the task load. In this embodiment, the load support seat 10 is a semi-annular support structure, and the outer circumference of the semi-annular support structure is provided with a mounting boss, and a compression spring is installed in the mounting boss, one end of the compression spring is fixed in the mounting boss, and the other end of the compression spring is free; every two load support seats 10 are arranged opposite to each other to form an annular clamp, which is clamped on the outer circumference of the upper task load 15 or the lower task load 16. At this time, the other end of the compression spring is in contact with the outer circumference of the upper task load 15 or the lower task load 16, and the compression spring is in a compressed state; in this embodiment, there are three annular clamps on each task load;

[0056] For each annular clamp of the upper task load 15, the mounting boss of one load support seat 10 is fixed on the fixed layer frame 4, and the mounting boss of the other load support seat 10 is fixed on the upper surface of the mounting frame of the disposable separation frame A7; for each annular clamp of the lower task load 16, the mounting boss of one load support seat 10 is fixed on the lower surface of the mounting frame of the disposable separation frame A7, and the mounting boss of the other load support seat 10 is fixed on the upper surface of the mounting frame of the disposable separation frame B12;

[0057] The secondary separation mechanism 11 is a U-shaped cassette, and each task load is equipped with a secondary separation mechanism 11. For the upper task load 15, the middle portion of the secondary separation mechanism 11 is clamped onto the outer circumference of the upper task load 15. One end of the secondary separation mechanism 11 is pinned to the mounting bracket of the disposable separation frame A7, and the other end of the secondary separation mechanism 11 is detachably connected to the mounting bracket of the disposable separation frame A7. The secondary separation mechanism 11 is mechanically connected to the optoelectronic hybrid cable 18 of the upper task load 15. When the integrated structure composed of the upper task load 15 and the secondary separation layer 2 sinks, the optoelectronic hybrid cable 18 is stretched straight by the force, pulling out the end of the detachable connection between the secondary separation mechanism 11 and the disposable separation frame A7, thereby separating from the disposable separation frame A7.

[0058] For the lower task load 16, the middle part of the secondary separation mechanism 11 is clamped on the outer circumference of the lower task load 16, one end of the secondary separation mechanism 11 is pinned to the mounting frame of the disposable separation frame B12, and the other end of the secondary separation mechanism 11 is detachably connected to the mounting frame of the disposable separation frame B12; the secondary separation mechanism 11 is mechanically connected to the optoelectronic hybrid cable 18 of the lower task load 16. When the integrated structure composed of the lower task load 16 and the primary separation layer 3 sinks, the optoelectronic hybrid cable 18 is stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism 11 and the disposable separation frame B12 is pulled out, and separated from the disposable separation frame B12.

[0059] Working principle: First, the lower mission payload 16 is released. The UUV platform 17 issues a command to detonate the explosive bolts 5 at the four connection points between the first-level separation layer 3 and the fixed layer 1. The connection between the guide connecting rod B13 and the explosive bolts 5 is disconnected, and the first-level separation layer 3 carrying the lower mission payload 16 is disconnected from the fixed layer 1. That is, the first-level separation layer 3 is separated from the second-level separation layer 2, and the first-level separation layer 3 sinks under the action of gravity. Since the explosive bolts 5 have good consistency, after the command to release the load is issued, the four explosive bolts 5 can be guaranteed to be detonated simultaneously, avoiding inconsistent release at multiple points that may cause the lower mission payload 16 to be unstable during the release process.

[0060] Since the load support seat 10 is equipped with a compression spring in a compressed state, when the connection between the guide connecting rod B13 and the explosive bolt 5 is disconnected, the compression spring in the load support seat 10 installed on the disposable separation frame A7 of the secondary separation layer 2 releases its elastic force, and the lower task load 16 is ejected, providing an initial separation force in the load release direction, so that the primary separation layer 3 carrying the lower task load 16 is quickly separated from the secondary separation layer 2, accelerating the sinking release speed of the primary separation layer 3 carrying the lower task load 16, as shown in the attached figure. Figure 3 As shown;

[0061] In the process of separating the primary separation layer 3 from the secondary separation layer 2, in order to ensure that the lower mission load 16 does not collide with the disposable separation frame A7 of the secondary separation layer 2 under severe sea conditions, a guide connecting rod B13 is provided on the disposable separation frame B12 to ensure that the lower mission load 16 does not move in any direction within the disposable separation frame A7 when the lower mission load 16 and the disposable separation frame A7 of the secondary separation layer 2 are not completely separated, thereby preventing collision with the disposable separation frame A7;

[0062] During the sinking and releasing process of the first-level separation layer 3 carrying the lower mission load 16, the optoelectronic hybrid cable 18 of the lower mission load 16 is gradually stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism 11 and the disposable separation frame B12 is pulled out, and separated from the disposable separation frame B12; at this time, the constraint between the lower mission load 16 and the first-level separation layer 3 is released; at the same time, under the elastic force of the compression spring in the load support seat 10 on the disposable separation frame B12 and the gravity of the disposable separation frame B12, the lower mission load 16 is separated from the disposable separation frame B12, that is, separated from the first-level separation layer 3, realizing the secondary separation of the lower mission load 16, as shown in the attached figure. Figure 4 As shown;

[0063] After the lower mission payload 16 completes the secondary separation, the lower mission payload 16 is completely separated from the disposable separation frame B12 and begins remote control operation. After the operation of the lower mission payload 16 is completed, the UUV platform 17 sends a payload abandonment instruction to the electromagnetic separation mechanism of the cable separation mechanism 6. After receiving the payload abandonment instruction, the electromagnetic separation mechanism controls the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket to separate, completing the abandonment of the lower mission payload 16. Figure 5 As shown;

[0064] After the lower mission payload 16 is jettisoned, the upper mission payload 15 is released. The UUV platform 17 issues a command to detonate the explosive bolts 5 at the four connection points between the secondary separation layer 2 and the fixed layer 1. The connection between the guide connecting rod A9 and the explosive bolts 5 is disconnected, and the secondary separation layer 2 carrying the upper mission payload 15 is separated from the fixed layer 1 and sinks under the action of gravity. Since the explosive bolts 5 have good consistency, after the command to release the load is issued, the four explosive bolts 5 can be guaranteed to be detonated simultaneously, avoiding inconsistent release points at multiple points that may cause the upper mission payload 15 to be unstable during the release process.

[0065] Since the load support seat 10 is equipped with a compression spring in a compressed state, when the connection between the guide connecting rod A 9 and the explosive bolt 5 is disconnected, the compression spring in the load support seat 10 installed on the fixed layer frame 4 releases its elastic force, springing off the upper task load 15 and providing an initial separation force in the load release direction, so that the secondary separation layer 2 carrying the upper task load 15 is quickly separated from the fixed layer 1, accelerating the sinking and release speed of the secondary separation layer 2 carrying the upper task load 15;

[0066] In the process of separating the secondary separation layer 2 from the fixed layer 1, in order to ensure that the upper mission load 15 does not collide with the fixed layer frame 4 of the fixed layer 1 under severe sea conditions, a guide connecting rod A9 is provided on the disposable separation frame A7 to ensure that the upper mission load 15 does not move in any direction within the fixed layer frame 4 when the upper mission load 15 and the fixed layer frame 4 of the fixed layer 1 are not completely separated, thereby preventing the upper mission load 15 from colliding with the fixed layer frame 4.

[0067] During the sinking and release process of the secondary separation layer 2 carrying the upper mission load 15, the optoelectronic hybrid cable 18 of the upper mission load 15 is gradually stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism 11 and the disposable separation frame A7 is pulled out, separating it from the disposable separation frame A7; at this time, the constraint between the upper mission load 15 and the secondary separation layer 2 is released; at the same time, under the action of the elastic force of the compression spring in the load support seat 10 on the disposable separation frame A7 and the gravity of the disposable separation frame A7, the upper mission load 15 is separated from the disposable separation frame A7, that is, separated from the secondary separation layer 2, thereby achieving secondary separation of the upper mission load 15;

[0068] After the upper mission payload 15 completes the secondary separation, the upper mission payload 15 completely detaches from the disposable separation frame A7 and starts remote control operation. After the operation of the upper mission payload 15 is completed, the UUV platform 17 sends a payload abandonment instruction to the electromagnetic separation mechanism of the cable separation mechanism 6. After receiving the payload abandonment instruction, the electromagnetic separation mechanism controls the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket to separate, completing the abandonment of the upper mission payload 15.

[0069] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A UUV disposable payload mounting and releasing device, characterized in that: include: Fixed layer, secondary separation layer, primary separation layer, load installation assembly and cable separation mechanism; The mission payloads to be mounted are upper mission payload and lower mission payload respectively; The upper mission payload is installed on the secondary separation layer through the payload installation assembly, and the lower mission payload is installed on the primary separation layer through the payload installation assembly; The fixed layer is mounted below the UUV platform; the secondary separation layer carrying the upper mission payload is detachably mounted below the fixed layer, and the primary separation layer carrying the lower mission payload is detachably mounted below the secondary separation layer; Both cable separation mechanisms are installed on the fixed layer. One end of one cable separation mechanism is optically connected to the UUV platform through a communication cable, and the other end is optically connected to the upper mission payload through a communication cable, so as to realize signal interaction between the UUV platform and the upper mission payload; one end of the other cable separation mechanism is optically connected to the UUV platform through a communication cable, and the other end is optically connected to the lower mission payload through a communication cable, so as to realize signal interaction between the UUV platform and the lower mission payload.

2. A UUV disposable payload mounting and releasing device according to claim 1, characterized in that: The fixed layer includes: a fixed layer frame and explosive bolts; the fixed layer frame is installed below the UUV platform; a plurality of explosive bolts are installed on the fixed layer frame; each explosive bolt is arranged in a vertical direction; The secondary separation layer includes: a disposable separation frame A and a guide connecting rod A; the bottoms of several guide connecting rods A are fixed to a circle around the outer edge of the top of the disposable separation frame A, and each guide connecting rod A is arranged in a vertical direction. The tops of the guide connecting rods A are connected one-to-one with some explosive bolts on the fixed layer frame to achieve a detachable connection between the secondary separation layer and the fixed layer, and the top surface of the disposable separation frame A is butted against the bottom surface of the fixed layer frame. The first-level separation layer includes: a disposable separation frame B and a guide connecting rod B; the bottoms of several guide connecting rods B are fixed on a circle of the outer edge of the top of the disposable separation frame B, and each guide connecting rod B is arranged in the vertical direction. After the top of the guide connecting rod B passes through the second-level separation layer, it is connected one-to-one with the remaining explosive bolts on the fixed layer frame to realize the detachable connection between the first-level separation layer and the fixed layer, and the top surface of the disposable separation frame B is butted against the bottom surface of the disposable separation frame A.

3. A UUV disposable payload mounting and releasing device as claimed in claim 2, characterized in that: A mounting rack is provided on the top of the disposable separation frame A. The upper mission payload to be mounted is installed on the mounting rack on the top of the disposable separation frame A of the secondary separation layer through the payload mounting assembly, so that the upper mission payload is located in the accommodation space formed by the fixed layer frame of the fixed layer; A mounting frame is provided at the bottom of the disposable separation frame B. The lower-layer task load to be mounted is installed on the mounting frame at the bottom of the disposable separation frame B of the first-level separation layer through a load mounting assembly, so that the lower-layer task load is located in the accommodation space formed between the disposable separation frame A of the second-level separation layer and the disposable separation frame B of the first-level separation layer.

4. A UUV disposable payload mounting and releasing device as claimed in claim 3, characterized in that: Each load mounting assembly includes a load support seat and a secondary separation mechanism; the load support seat is a semi-annular support structure, and the outer circumferential surface of the semi-annular support structure is provided with a mounting boss, and a compression spring is installed in the mounting boss, one end of the compression spring is fixed in the mounting boss, and the other end of the compression spring is free; every two load support seats are arranged opposite to each other to form an annular clamp, which is clamped on the outer circumferential surface of the upper task load or the lower task load. At this time, the other end of the compression spring contacts the outer circumferential surface of the upper task load or the lower task load, and the compression spring is in a compressed state; For each annular clamp of the upper task load, the mounting boss of one load support seat is fixed on the fixed layer frame, and the mounting boss of the other load support seat is fixed on the upper surface of the mounting frame of the disposable separation frame A; for each annular clamp of the lower task load, the mounting boss of one load support seat is fixed on the lower surface of the mounting frame of the disposable separation frame A, and the mounting boss of the other load support seat is fixed on the upper surface of the mounting frame of the disposable separation frame B; The secondary separation mechanism is a U-shaped cassette, and each mission load is equipped with a secondary separation mechanism; for the upper mission load, the middle part of the secondary separation mechanism is clamped on the outer circumference of the upper mission load, one end of the secondary separation mechanism is pinned to the mounting bracket of the disposable separation frame A, and the other end of the secondary separation mechanism is detachably connected to the mounting bracket of the disposable separation frame A; the secondary separation mechanism is mechanically connected to the communication cable of the upper mission load. When the integrated structure consisting of the upper mission load and the secondary separation layer sinks, the communication cable is stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism and the disposable separation frame A is pulled out, separating it from the disposable separation frame A; For the lower task load, the middle part of the secondary separation mechanism is clamped on the outer circumference of the lower task load, one end of the secondary separation mechanism is pinned to the mounting frame of the disposable separation frame B, and the other end of the secondary separation mechanism is detachably connected to the mounting frame of the disposable separation frame B; the secondary separation mechanism is mechanically connected to the communication cable of the lower task load. When the integrated structure composed of the lower task load and the first-level separation layer sinks, the communication cable is stretched straight by the force, and the end of the detachable connection between the secondary separation mechanism and the disposable separation frame B is pulled out, and separated from the disposable separation frame B.

5. A UUV disposable payload mounting and releasing device according to any one of claims 1 to 4, characterized in that: Each cable separation mechanism includes an electromagnetic separation mechanism, an optoelectronic hybrid connector plug, and an optoelectronic hybrid connector socket; the optoelectronic hybrid connector socket is fixed on the fixed layer and communicates with the UUV platform through the optoelectronic hybrid cable; the optoelectronic hybrid connector plug is connected to the upper mission payload or the lower mission payload through the optoelectronic hybrid cable; when the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket are connected, optical and electrical communication between the upper mission payload / lower mission payload and the UUV platform can be achieved; The electromagnetic separation mechanism is used to separate the optoelectronic hybrid connector plug and the optoelectronic hybrid connector socket.

6. A UUV disposable payload mounting and releasing device according to any one of claims 2 to 4, characterized in that: The fixed layer frame is also provided with a plurality of limiting holes, and each limiting hole is located one-to-one below the explosive bolt; a plurality of guide connecting rods A respectively pass through the corresponding limiting holes of the fixed layer frame and are connected to some of the explosive bolts; the guide connecting rods B respectively pass through the corresponding limiting holes of the secondary separation layer and the fixed layer frame and are connected to the remaining explosive bolts.

7. A UUV disposable payload mounting and releasing device according to any one of claims 2 to 4, characterized in that: The disposable separation frame A, the disposable separation frame B and the fixed layer frame are all metal frame structures and are covered with fairings, which can conform to the UUV platform.

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