Dismounting transmission and emergency unlocking mechanism for neutrino subsurface buoy laying device

Abstract

The invention discloses a neutrino subsurface buoy laying device detaching transmission and emergency unlocking mechanism which comprises a first detaching mechanism, a second detaching mechanism, a detaching transmission mechanism, a bottom plate frame, an unlocking handle, a first emergency unlocking rod and a second emergency unlocking rod. The detaching transmission mechanism is composed of an outer sheath, a first steel wire and a second steel wire, wherein the first steel wire and the second steel wire are arranged in the sheath. When the unlocking handle rotates, the first detaching mechanism and the second detaching mechanism are driven by the detaching transmission mechanism to be unlocked synchronously. The two sides of the neutrino subsurface buoy laying device in the deep sea high-pressure environment are higher in synchronous detaching transmission unlocking success rate, and stability and reliability are achieved.

Description

Technical Field

[0001] The invention relates to the field of neutrino buoy deployment devices, and in particular to a detachable transmission and emergency unlocking mechanism for a neutrino buoy deployment device. Background Art

[0002] The "Hai Ling" neutrino telescope project requires the establishment of a dense detector array consisting of 1,200 detector strings in the South China Sea. Each string contains 20 neutrino detection balls. During the array deployment process, a waterwheel-type deployment device is required to first integrate and package the strings, and then transport the deployment device to the seabed. After it stabilizes, the ROV opens the detachment mechanism in the middle of the deployment device, and the upper structures of the deployment device, such as the turntable and floating frame, float from the seabed using the buoyancy provided by the buoyancy materials configured by themselves. During the floating process, the turntable of the deployment device equipped with 20 neutrino detection balls rotates, and releases each detection ball in turn during the rotation.

[0003] Taking into account the structural form of the waterwheel-type deployment device, if the detachment mechanisms on both sides cannot be unlocked at the same time, the turntable is likely to tilt to the unlocked side, thus posing a huge hidden danger to the subsequent buoy release operation. How to cleverly design a transmission mechanism that can enable the detachment mechanisms on the left and right sides, about 3 meters apart, to be stably and synchronously unlocked under ultra-deep water pressure; and when the transmission mechanism fails, how to use purely physical means to unlock the detachment mechanisms on both sides to ensure that the upper structures such as the turntable of the deployment device can carry multiple detection balls to float up and be recovered, and prevent huge losses of manpower and material resources. This is of necessary value to the deployment of the neutrino buoy series and is also of great significance to the advancement of the "Hai Ling" neutrino telescope project.

[0004] Therefore, the technicians in this field are committed to developing a neutrino buoy deployment device detachable transmission and emergency unlocking mechanism Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is:

[0006] 1. The most mature underwater unlocking solution for neutrino buoy deployment devices is the independent spring lock unlocking at the bottom of the Mediterranean KM3NeT rolling ball deployment device. However, for the waterwheel deployment device designed for the "Hailing", a detachable unlocking mechanism must be set on both sides of the turntable, and the single spring lock design is no longer applicable. During the deployment operation, if the detachable mechanisms on both sides cannot be unlocked synchronously, it is very likely that the turntable of the deployment device will be deformed due to the tilt problem, affecting the subsequent release operation.

[0007] 2. The "Sea Bell" uses a waterwheel-type neutrino buoy deployment device. When releasing the detection ball, the turntable and other upper structures need to rise together. The turntable is located in the middle of the deployment device, and the position of the transmission mechanism must be reasonably designed. If the transmission rod is installed in the middle or upper part of the launcher, it will hinder the turntable from floating up, and may even cause the transmission mechanism and the turntable to entangle, resulting in the failure of the deployment operation.

[0008] 3. The "Hai Ling" neutrino buoy deployment device needs to operate at a depth of 3,500 meters in the South China Sea and under harsh sea conditions. The existing purely mechanical structure may fail due to excessive water pressure.

[0009] To achieve the above-mentioned object, the present invention provides a detachable transmission and emergency unlocking mechanism for a neutrino buoy deployment device, comprising a first detachable mechanism, a second detachable mechanism, a detachable transmission mechanism, a base frame, an unlocking handle, a first emergency unlocking lever and a second emergency unlocking lever, wherein the detachable transmission mechanism is composed of an outer sheath and a first steel wire and a second steel wire in the sheath.

[0010] The first detaching mechanism and the second detaching mechanism are respectively arranged at two ends of the bottom plate frame, and the unlocking handle is arranged on the bottom plate frame.

[0011] One end of the first steel wire is connected to the unlocking handle, and the other end is connected to the first detaching mechanism.

[0012] One end of the second steel wire is connected to the unlocking handle, and the other end is connected to the second detaching mechanism.

[0013] The first detaching mechanism and the second detaching mechanism are mirror-symmetrical.

[0014] The first emergency unlocking lever is connected to the first release mechanism, and the second emergency unlocking lever is connected to the second release mechanism.

[0015] When the unlocking handle rotates, the first detaching mechanism and the second detaching mechanism are driven to be unlocked synchronously through the detaching transmission mechanism.

[0016] The emergency release lever is configured to release the release mechanism when pulled.

[0017] Furthermore, the sheath is flexible.

[0018] Further, the detachable mechanism includes a first locking member, a second locking member, a first elastic member, a second elastic member and a lock body outer plate;

[0019] One end of the first elastic member is fixed, and the other end of the first elastic member is connected to the first locking member;

[0020] One end of the second elastic member is fixed, and the other end of the second elastic member is connected to the second locking member;

[0021] The first locking element is rotatable around a first axis, and the second locking element is rotatable around a second axis;

[0022] When the detachable mechanism is in a locked state, the first locking member cooperates with the second locking member, the first elastic member and the second elastic member are in a tensioned state, and the torque applied by the first elastic member to the first locking member is opposite in direction to the torque applied by the second elastic member to the second locking member;

[0023] The first locking element is connected to the emergency unlocking rod, and the emergency unlocking rod is configured to pull the first locking element;

[0024] A first rotating rod and a second rotating rod are vertically disposed on the inner side surface of the outer plate of the lock body. The first locking element rotates around the first rotating rod, and the second locking element rotates around the second rotating rod.

[0025] Furthermore, the detachable mechanism also includes a lock body bottom plate, and the lock body bottom plate is arranged on an end surface of the lock body outer plate.

[0026] Furthermore, the first locking element is a locking tongue structure, the second locking element is a locking buckle structure, and the convex portion of the second locking element matches the concave portion of the first locking element.

[0027] Furthermore, the detachment mechanism also includes a first connecting rod and a second connecting rod, and a third rotating rod is vertically provided on the inner side surface of the outer plate of the lock body, the first connecting rod rotates around the third rotating rod, one end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the first locking element, and the unlocking handle is arranged on the second connecting rod.

[0028] Furthermore, the detachable mechanism also includes a third elastic member, one end of which is fixed, and the other end of which is connected to the other end of the first connecting rod; when the detachable mechanism is in a locked state, the third elastic member is in a relaxed state.

[0029] Furthermore, a stopper is provided on the inner side surface of the outer plate of the lock body, and the stopper limits the first connecting rod.

[0030] Furthermore, the first elastic member, the second elastic member and the third elastic member are springs.

[0031] Furthermore, the material of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device is mainly high-strength alloy steel.

[0032] In a second aspect, the present invention provides a parameter optimization design method for the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device, comprising the following steps:

[0033] Step 1: Obtain the overall design scheme of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device, including the structural diagram and parts diagram;

[0034] Step 2: Develop a simulation model based on the design drawings to analyze the structural strength indicators of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device;

[0035] Step 3: Develop a test model based on the design drawings to analyze the structural strength indicators of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device;

[0036] Step 4: Determine the quality of the floating frame, turntable, and buoyancy material upper structure of the deployment device according to actual conditions;

[0037] Step 5: Determine the materials used for the emergency unlocking mechanism and the specifications of its related components based on the mass of the superstructure of the deployment device determined in step 4;

[0038] Step 6: Determine the overall volume of the detachment mechanism;

[0039] Step 7: Determine the overall quality of the release mechanism;

[0040] Step 8: Determine the material of the sheath of the detachable transmission mechanism according to the adjusted friction coefficient of the outer shell material of the detachable mechanism and the actual operating seawater depth;

[0041] Step 9: Determine the strength of the steel wire used in the detachment transmission mechanism based on the mass of the upper structure of the deployment device, and confirm the material of the steel wire;

[0042] Step 10: Conduct a mechanical structure verification test of the release mechanism during the unlocking process to determine the movement of the lock tongue and lock buckle inside the release mechanism during the unlocking process;

[0043] Step 11: According to the numerical simulation results and combined with the model test, the design rotation stroke of the unlocking handle of the detaching mechanism and the length of the steel wire inside the detaching transmission mechanism are determined;

[0044] Step 12: Preliminarily determine the parameters of the detachable transmission and emergency unlocking mechanism that meet the actual requirements through the above steps;

[0045] Step 13: Optimize various parameters of the detachable transmission and emergency unlocking mechanism according to the model test and numerical simulation results, iterate repeatedly, and continuously obtain better results;

[0046] Step 14: Through model tests and numerical simulations, various performance indicators of the detachable transmission and emergency unlocking mechanism after iterative optimization design are checked and verified.

[0047] Technical Effects

[0048] 1. A design scheme for the detachable transmission mechanism of the neutrino buoy deployment device is proposed, which inserts a high-strength steel wire into a high-toughness and wear-resistant sheath, so that the success rate of synchronous detachable transmission unlocking on both sides of the deployment device in a deep-sea high-pressure environment is higher. The detachable transmission mechanism of the neutrino buoy deployment device is designed as a combination of a sheath and a steel wire, and adopts a purely mechanical structure design. As long as the steel wire is pulled for a sufficient distance, the synchronous unlocking of the detachable mechanisms on both sides can be completed. Both the sheath and the internal steel wire are flexible structures with a certain elastic deformation capacity, which can cope with the collision between the bottom of the deployment device and the seabed, and have strong reliability.

[0049] 2. The detachable transmission mechanism is designed to pass through the bottom of the deployment device, which will not hinder the subsequent deployment process of the turntable floating up. Its flexible structure and the protection of the bottom plate of the high-strength steel deployment device below can avoid damage to the structure itself caused by collision to a certain extent, further ensuring the reliable execution of the deployment operation process. In view of the spatial structure setting characteristics of the "Hailing" neutrino buoy deployment device, the detachable transmission mechanism with a large length and flexible material is bypassed from under the deployment device. The present invention provides a safer local structural design scheme for the neutrino detection array deployment device, which can reduce the risk of accidental failure of the detachable transmission mechanism caused by collision while improving the reliability and stability of the separation and detachment operation of the deployment device.

[0050] 3. Add a high-strength emergency unlocking rod to the top of the detachment mechanism of the neutrino buoy deployment device. After the transmission device of the synchronous unlocking of the detachment mechanisms on both sides fails, the ROV manipulator can be controlled to pull the emergency unlocking rods one by one, so that the deployment device starts to release each detection ball, which greatly ensures the reliability of deep-sea deployment operations. A rod made of high-strength alloy steel that is convenient for the ROV manipulator to grasp extends from the top protection plate of the detachment mechanism. When the detachment transmission mechanism cannot work normally, the emergency unlocking rod can always maintain strength and rigidity to ensure that the detachment mechanism of the deployment device can be unlocked in an emergency. The design of a purely mechanical steel rod does not affect the protective effect of the protective plate on the internal lock body of the detachment mechanism, and can ensure that the turntable of the deployment device can be separated from the bottom structure in an emergency, so that the deployment work can be successfully carried out.

[0051] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of a detachable transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present invention;

[0053] Figure 2It is a schematic diagram of the locked state of the detachable transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present invention (one side);

[0054] Figure 3 It is a schematic diagram of the unlocking state of the detachable transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present invention (one side);

[0055] Figure 4 The present invention discloses a method for optimizing the parameters of a neutrino buoy deployment device for a detachable transmission and emergency unlocking mechanism. DETAILED DESCRIPTION

[0056] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0057] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0058] Embodiment 1

[0059] like Figure 1 As shown, the disassembly mechanism 1, the disassembly transmission mechanism 2, the bottom plate frame 3, the unlocking handle 4, the bottom plate 5, the emergency unlocking rod 6, the "Hailing" neutrino buoy deployment device is equipped with a disassembly mechanism on the top of both sides of the bottom plate frame, and the two are arranged in a mirror-symmetrical manner. When the deployment device reaches the seabed and is ready to release the detection ball, the ROV manipulator is operated to rotate the unlocking handle clockwise as shown in the figure. The end of the unlocking handle is wrapped with a steel wire, and the steel wire is connected to the lock body in the disassembly mechanism on one side near the unlocking handle. At the same time, the steel wire also passes through the inside of the disassembly transmission mechanism and is connected to the lock body in the other disassembly mechanism. After rotating the unlocking handle, the steel wire is pulled, driving the disassembly mechanisms on both sides to unlock synchronously, and the upper structures of the deployment device such as the deployment device turntable, the floating frame and the buoyancy material rise under the action of buoyancy. During this period, the turntable rotates continuously, and each detection ball is released in turn to complete the deployment operation.

[0060] If a special situation is encountered on the seabed (such as the detachment transmission mechanism is deformed by impact, resulting in the inability to unlock the detachment mechanisms on both sides synchronously), the ROV manipulator can be operated to pull open the emergency unlocking levers on the top of the detachment mechanisms on both sides in the horizontal direction as shown in the figure, and complete the release of the upper structures of the deployment device such as the deployment device turntable, floating frame and buoyancy material.

[0061] like Figure 2As shown, under normal conditions, by following Figure 1 As shown in the figure, the ROV manipulator can be operated to rotate the unlocking handle clockwise to control the removal of the steel wire in the transmission mechanism. Figure 2 Pull the lock body inside the release mechanism in the lower right direction as shown and unlock the release mechanisms on both sides simultaneously. If an unexpected situation occurs, operate the ROV manipulator according to Figure 2 As shown, the emergency unlocking levers on the top of the release mechanisms on both sides are pulled horizontally to the right one by one to complete the release of the upper structures of the deployment device, such as the deployment device turntable, the floating frame and the buoyancy material.

[0062] like Figure 3 As shown,

[0063] The internal lock body of the detachment mechanism can be opened by rotating the unlocking handle to unlock the detachment mechanisms on both sides synchronously or by pulling the emergency unlocking levers one by one to unlock the detachment mechanisms on both sides, thereby completing the release of the upper structure of the deployment device.

[0064] Embodiment 2

[0065] like Figure 4 As shown, a parameter optimization design method for the detachable transmission and emergency unlocking mechanism of a neutrino buoy deployment device comprises the following steps:

[0066] Step 1: Obtain the overall design plan of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device, including structural drawings, parts drawings, etc.

[0067] Steps 2 and 3: Develop a simulation model or test model based on the design drawings to analyze indicators such as the structural strength of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device.

[0068] Step 4: Determine the quality of the upper structures such as the floating frame, turntable, buoyancy material, etc. of the deployment device based on actual conditions.

[0069] Step 5: Based on the mass of the superstructure of the deployment device determined in step 4, further determine the materials used for the emergency unlocking mechanism and the specifications of its related components (such as the shape and volume of the lock tongue and lock buckle inside the detachment mechanism).

[0070] Steps 6 and 7: Further determine the overall volume and mass of the detachable mechanism.

[0071] Step 8: Determine the material of the detachable transmission mechanism jacket based on the adjusted friction coefficient of the detachable mechanism shell material and the actual operating seawater depth.

[0072] Step 9: Determine the strength of the steel wire used in the detachment transmission mechanism based on the mass of the upper structure of the deployment device, and further confirm the material of the steel wire (it needs to be made of special steel material with strong toughness and high strength).

[0073] Step 10: Determine the movement of the lock tongue and lock buckle inside the disengagement mechanism during the unlocking process by conducting a mechanical structure verification test on the disengagement mechanism during the unlocking process.

[0074] Step 11: According to the numerical simulation results and combined with the model test, the design rotation stroke of the unlocking handle of the detaching mechanism and the length of the steel wire inside the detaching transmission mechanism are determined.

[0075] Step 12: Through the above steps, preliminarily determine the parameters of the disengagement transmission and emergency unlocking mechanism that meet the actual requirements.

[0076] Step 13: Optimize the parameters of the detachable transmission and emergency unlocking mechanism according to the model test and numerical simulation results, and iterate repeatedly to continuously obtain better results.

[0077] Step 14: Through model tests and numerical simulations, various performance indicators (such as strength, synchronous unlocking success rate, and emergency unlocking success rate) of the detachable transmission and emergency unlocking mechanism after iterative optimization design are checked and verified.

[0078] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A detachable transmission and emergency unlocking mechanism for a neutrino buoy deployment device, characterized in that: The device comprises a first detaching mechanism, a second detaching mechanism, a detaching transmission mechanism, a bottom plate frame, an unlocking handle, a first emergency unlocking lever and a second emergency unlocking lever. The detaching transmission mechanism is composed of an outer sheath and a first steel wire and a second steel wire in the sheath. The first detaching mechanism and the second detaching mechanism are respectively arranged at two ends of the bottom plate frame, and the unlocking handle is arranged on the bottom plate frame. One end of the first steel wire is connected to the unlocking handle, and the other end is connected to the first detaching mechanism. One end of the second steel wire is connected to the unlocking handle, and the other end is connected to the second detaching mechanism. The first detaching mechanism and the second detaching mechanism are mirror-symmetrical. The first emergency unlocking lever is connected to the first release mechanism, and the second emergency unlocking lever is connected to the second release mechanism. When the unlocking handle rotates, the first detaching mechanism and the second detaching mechanism are driven to be unlocked synchronously through the detaching transmission mechanism.

2. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 1, characterized in that: The detachable mechanism comprises a first locking member, a second locking member, a first elastic member, a second elastic member and a lock body plate; One end of the first elastic member is fixed, and the other end of the first elastic member is connected to the first locking member; One end of the second elastic member is fixed, and the other end of the second elastic member is connected to the second locking member; The first locking element is rotatable around a first axis, and the second locking element is rotatable around a second axis; When the detachable mechanism is in a locked state, the first locking member cooperates with the second locking member, the first elastic member and the second elastic member are in a tensioned state, and the torque applied by the first elastic member to the first locking member is opposite in direction to the torque applied by the second elastic member to the second locking member; The first locking element is connected to the emergency unlocking rod, and the emergency unlocking rod is configured to pull the first locking element; A first rotating rod and a second rotating rod are vertically disposed on the inner side surface of the outer plate of the lock body. The first locking element rotates around the first rotating rod, and the second locking element rotates around the second rotating rod.

3. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 2, characterized in that: The detachable mechanism further comprises a lock body bottom plate, and the lock body bottom plate is arranged on an end surface of the lock body outer plate.

4. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 2, characterized in that: The first locking element is a locking tongue structure, the second locking element is a locking buckle structure, and the convex portion of the second locking element matches the concave portion of the first locking element.

5. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 4 is characterized in that: The detachment mechanism also includes a first connecting rod and a second connecting rod. A third rotating rod is vertically provided on the inner side surface of the outer plate of the lock body. The first connecting rod rotates around the third rotating rod. One end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the first locking element. The unlocking handle is provided on the second connecting rod.

6. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 5 is characterized in that: The detachable mechanism also includes a third elastic member, one end of which is fixed, and the other end of which is connected to the other end of the first connecting rod; when the detachable mechanism is in a locked state, the third elastic member is in a relaxed state.

7. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 6 is characterized in that: A stopper is also provided on the inner side surface of the outer plate of the lock body, and the stopper limits the first connecting rod.

8. The detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 6 is characterized in that: The first elastic member, the second elastic member and the third elastic member are springs.

9. The detachment mechanism of the neutrino buoy deployment device according to claim 1 is characterized in that: The material of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device is mainly high-strength alloy steel.

10. A parameter optimization design method for the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 1, characterized in that: The following steps are involved: Step 1: Obtain the overall design scheme of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device, including the structural diagram and parts diagram; Step 2: Develop a simulation model based on the design drawings to analyze the structural strength indicators of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device; Step 3: Develop a test model based on the design drawings to analyze the structural strength indicators of the detachable transmission and emergency unlocking mechanism of the neutrino buoy deployment device; Step 4: Determine the quality of the floating frame, turntable, and buoyancy material upper structure of the deployment device according to actual conditions; Step 5: Determine the materials used for the emergency unlocking mechanism and the specifications of its related components based on the mass of the superstructure of the deployment device determined in step 4; Step 6: Determine the overall volume of the detachment mechanism; Step 7: Determine the overall quality of the release mechanism; Step 8: Determine the material of the sheath of the detachable transmission mechanism according to the adjusted friction coefficient of the outer shell material of the detachable mechanism and the actual operating seawater depth; Step 9: Determine the strength of the steel wire used in the detachment transmission mechanism based on the mass of the upper structure of the deployment device, and confirm the material of the steel wire; Step 10: Conduct a mechanical structure verification test of the release mechanism during the unlocking process to determine the movement of the lock tongue and lock buckle inside the release mechanism during the unlocking process; Step 11: According to the numerical simulation results and combined with the model test, the design rotation stroke of the unlocking handle of the detaching mechanism and the length of the steel wire inside the detaching transmission mechanism are determined; Step 12: Preliminarily determine the parameters of the detachable transmission and emergency unlocking mechanism that meet the actual requirements through the above steps; Step 13: Optimize various parameters of the detachable transmission and emergency unlocking mechanism according to the model test and numerical simulation results, iterate repeatedly, and continuously obtain better results; Step 14: Through model tests and numerical simulations, various performance indicators of the detachable transmission and emergency unlocking mechanism after iterative optimization design are checked and verified.

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