A neutrino buoy deployment device release transmission and emergency unlocking mechanism

Abstract

The application discloses a neutrino buoyant platform deployment device dismounting transmission and emergency unlocking mechanism, which comprises a first dismounting mechanism, a second dismounting mechanism, a dismounting transmission mechanism, a bottom plate frame, an unlocking handle, a first emergency unlocking rod and a second emergency unlocking rod, wherein the dismounting transmission mechanism is composed of an outer sheath and first and second steel wire lines in the sheath; when the unlocking handle rotates, the first and second dismounting mechanisms are synchronously unlocked by the dismounting transmission mechanism. The application has higher success rate of synchronous dismounting transmission and unlocking of both sides of the neutrino buoyant platform deployment device in a deep-sea high-pressure environment and is stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of neutrino buoy deployment device, in particular to a neutrino buoy deployment device dismounting transmission and emergency unlocking mechanism. BACKGROUND

[0002] The "CZ" neutrino telescope project needs to establish a dense detector array composed of 1200 detector strings. Each string contains 20 neutrino detection balls. In the array deployment process, a waterwheel type deployment device is used to integrate and package the strings, and then the deployment device is transported to the seabed. After it is stable, the ROV opens the dismounting mechanism in the middle of the deployment device, and the upper structure of the deployment device such as the rotating disc and the floating frame uses the buoyancy provided by the configured buoyancy material to float from the seabed. During the floating process, the deployment device rotating disc assembled with 20 neutrino detection balls rotates and releases each detection ball in turn.

[0003] Considering the structure of the waterwheel type deployment device, if the dismounting mechanisms on both sides cannot be unlocked at the same time, the rotating disc may tilt to the side that is not unlocked, thereby causing great hidden troubles for subsequent buoy release and deployment operations. How to ingeniously design a transmission mechanism that can stably and synchronously unlock the dismounting mechanisms on both sides about 3 meters apart under super deep water pressure, and how to take purely physical means to unlock the dismounting mechanisms on both sides when the transmission mechanism fails, so as to ensure that the upper structure of the deployment device such as the rotating disc can carry multiple detection balls to float and be recovered, preventing huge loss of manpower and material resources, has necessary value for the deployment of neutrino buoys and is of great significance for the promotion of the "CZ" neutrino telescope project.

[0004] Therefore, the technical personnel in the art are committed to developing a neutrino buoy deployment device dismounting transmission and emergency unlocking mechanism. SUMMARY

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

[0006] 1. The current mature underwater unlocking scheme of the neutrino buoy deployment device is the bottom independent spring lock unlocking of the Mediterranean KM3NeT ball type deployment device. However, for the waterwheel type deployment device designed for "CZ", the dismounting unlocking mechanism must be provided on both sides of the rotating disc, and the separate spring lock design is no longer applicable. During the deployment operation, if the dismounting mechanisms on both sides cannot be unlocked synchronously, the rotating disc of the deployment device may be deformed due to tilting, affecting the subsequent release operation.

[0007] 2, "sea ball" adopts the water wheel form of the neutrino submersible device, when releasing the detection ball, the rotating disc and other upper structure need to rise together, the rotating disc is located in the middle of the device, the position of the transmission mechanism must be reasonably designed. If the transmission rod is installed in the middle or upper part of the device, it will hinder the floating of the rotating disc, and even cause the transmission mechanism to entangle with the rotating disc, so that the deployment operation fails.

[0008] 3, "sea ball" neutrino submersible device needs to operate in 3500 meters water depth and severe sea conditions, the existing pure mechanical structure may fail due to excessive water pressure.

[0009] In order to achieve the above purpose, the present application provides a neutrino submersible device dismounting transmission and emergency unlocking mechanism, comprising a first dismounting mechanism, a second dismounting mechanism, a dismounting transmission mechanism, a bottom plate frame, an unlocking handle, a first emergency unlocking rod and a second emergency unlocking rod, the dismounting transmission mechanism is composed of an outer sheath and a first steel wire and a second steel wire in the sheath,

[0010] The first dismounting mechanism and the second dismounting mechanism are respectively arranged at both 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 with the unlocking handle, and the other end is connected with the first dismounting mechanism,

[0012] One end of the second steel wire is connected with the unlocking handle, and the other end is connected with the second dismounting mechanism,

[0013] The first dismounting mechanism and the second dismounting mechanism are mirror symmetric,

[0014] The first emergency unlocking rod is connected with the first dismounting mechanism, and the second emergency unlocking rod is connected with the second dismounting mechanism,

[0015] When the unlocking handle rotates, the first dismounting mechanism and the second dismounting mechanism are unlocked synchronously through the dismounting transmission mechanism.

[0016] The emergency unlocking rod is configured to unlock the dismounting mechanism when pulled.

[0017] Further, the sheath is flexible.

[0018] Further, the dismounting mechanism comprises a first lock, a second lock, a first elastic element, a second elastic element and a lock body outer plate;

[0019] One end of the first elastic element is fixed, and the other end of the first elastic element is connected with the first lock;

[0020] One end of the second elastic element is fixed, and the other end of the second elastic element is connected with the second lock;

[0021] The first lock piece can rotate around a first axis, and the second lock piece can rotate around a second axis;

[0022] When the dismounting mechanism is in the locking state, the first lock piece cooperates with the second lock piece, the first elastic piece and the second elastic piece are in the tension state, and the torque applied by the first elastic piece to the first lock piece is opposite to the torque applied by the second elastic piece to the second lock piece.

[0023] The first lock piece is connected with the emergency unlocking rod, and the emergency unlocking rod is configured to pull the first lock piece.

[0024] The inner side surface of the lock body outer plate is vertically provided with a first rotating rod and a second rotating rod, the first lock piece rotates around the first rotating rod, and the second lock piece rotates around the second rotating rod.

[0025] Further, the dismounting mechanism further comprises a lock body bottom plate, and the lock body bottom plate is arranged at one end surface of the lock body outer plate.

[0026] Further, the first lock piece is in the form of a lock tongue, the second lock piece is in the form of a lock catch, and the convex part of the second lock piece cooperates with the concave part of the first lock piece.

[0027] Further, the dismounting mechanism further comprises a first connecting rod and a second connecting rod, the inner side surface of the lock body outer plate is further vertically provided with a third rotating rod, the first connecting rod rotates around the third rotating rod, one end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the second connecting rod is rotatably connected with the first lock piece, and the unlocking handle is arranged on the second connecting rod.

[0028] Further, the dismounting mechanism further comprises a third elastic piece, one end of the third elastic piece is fixed, and the other end of the third elastic piece is connected with the other end of the first connecting rod; when the dismounting mechanism is in the locking state, the third elastic piece is in the relaxed state.

[0029] Further, the inner side surface of the lock body outer plate is further provided with a stop piece, and the stop piece limits the first connecting rod.

[0030] Further, the first elastic piece, the second elastic piece and the third elastic piece are springs.

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

[0032] In a second aspect, the application provides a parameter optimization design method based on the above-mentioned neutrino subsurface buoy deployment device dismounting transmission and emergency unlocking mechanism, which comprises the following steps:

[0033] Step 1: Obtain the overall design scheme of the dismounting transmission and emergency unlocking mechanism of the neutrino submarine marker deployment device, including the structural diagram and part drawing;

[0034] Step 2: Develop a simulation model according to the design drawing to analyze the structural strength indicators of the dismounting transmission and emergency unlocking mechanism of the neutrino submarine marker deployment device;

[0035] Step 3: Develop a test model according to the design drawing to analyze the structural strength indicators of the dismounting transmission and emergency unlocking mechanism of the neutrino submarine marker deployment device;

[0036] Step 4: Determine the mass of the upper structure of the deployment device, the rotating disc, and the buoyancy material according to the actual situation;

[0037] Step 5: Determine the material and related components of the emergency unlocking mechanism according to the mass of the upper structure of the deployment device determined in Step 4;

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

[0039] Step 7: Determine the overall mass of the dismounting mechanism;

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

[0041] Step 9: Determine the strength of the steel wire used in the dismounting transmission mechanism and confirm the material of the steel wire according to the mass of the upper structure of the deployment device;

[0042] Step 10: Determine the movement of the locking tongue and locking buckle inside the dismounting mechanism during the unlocking process through mechanical structure verification tests on the dismounting mechanism;

[0043] Step 11: Determine the design rotation stroke of the dismounting mechanism unlocking handle and the length of the steel wire inside the dismounting transmission mechanism according to the numerical simulation results combined with model tests;

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

[0045] Step 13: Optimize the parameters of the dismounting transmission and emergency unlocking mechanism based on model tests and numerical simulation results, and repeatedly iterate to obtain better results;

[0046] Step 14: Check and verify the performance indicators of the dismounting transmission and emergency unlocking mechanism after iterative optimization design through model tests and numerical simulation.

[0047] Technical effects

[0048] 1. A kind of neutrino submersible marker deployment device in high toughness and wear-resistant sheath inside the design scheme of the release transmission mechanism of high-strength steel wire line, make the two sides of the deployment device in deep-sea high-pressure environment Synchronous release transmission unlocking success rate higher. The release transmission mechanism of neutrino submersible marker deployment device is designed as the combination of sheath and steel wire line, using pure mechanical structure design, as long as the stroke of steel wire line is pulled enough to complete the synchronous unlocking of two sides of release mechanism. Sheath and internal steel wire line are flexible structure, have certain elastic deformation capacity, can cope with the situation of the bottom of deployment device and the bottom of sea, have very strong reliability.

[0049] 2, the release transmission mechanism is designed as the form of passing through the bottom of deployment device, will not hinder the subsequent deployment process of the floatation of rotary disc, and the protection of the flexible structure and the high-strength steel bottom plate of deployment device below can avoid the damage to the structure itself caused by collision to some extent, further ensure the reliable execution of deployment operation process. According to the space structure setting characteristics of " sea ball " neutrino submersible marker deployment device, the release transmission mechanism with greater length and flexible material is bypassed from the bottom of deployment device. The present application provides a relatively safe local structure design scheme for neutrino detection array deployment device, which can reduce the risk of accidental failure of release transmission mechanism caused by collision while improving the reliability and stability of the separation and release operation of deployment device.

[0050] 3, high-strength emergency unlocking rod is added to the top of the release mechanism of neutrino submersible marker deployment device, which can be operated by ROV manipulator to pull the emergency unlocking rod one by one, so that the deployment device starts to release each detection ball, greatly ensuring the reliability of deep-sea deployment operation. A rod made of high-strength alloy steel is manufactured to stretch out from the top protection plate of release mechanism, which can be easily gripped by ROV manipulator. When the release transmission mechanism fails to work normally, the emergency unlocking rod can always maintain strength and rigidity to ensure that the release mechanism of deployment device can be unlocked in emergency. The design scheme of pure mechanical steel rod does not affect the protection of the protection plate on the lock body of release mechanism, and can ensure that the rotary disc of deployment device can be separated from the bottom structure in emergency to successfully perform deployment work.

[0051] The concept, specific structure and technical effects of the present application will be further described in conjunction with the drawings to fully understand the purpose, features and effects of the present application. DETAILED DESCRIPTION

[0052] Figure 1 It is a structure diagram of the release transmission and emergency unlocking mechanism of the present application.

[0053] Figure 2is a locking state schematic view (one side) of a dismounting transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present application;

[0054] Figure 3 is an unlocking state schematic view (one side) of a dismounting transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present application;

[0055] Figure 4 is a parameter optimization design method flow chart of a dismounting transmission and emergency unlocking mechanism of a neutrino buoy deployment device of the present application. DETAILED DESCRIPTION

[0056] The following reference to the drawings of the specification introduces a plurality of preferred embodiments of the present application, so that its technical content is more clear and convenient to understand. The present application can be embodied in many different forms of embodiments, the protection scope of the present application is not limited to the embodiments mentioned in the text.

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

[0058] Example 1

[0059] As shown in Figure 1 , the dismounting mechanism 1, the dismounting transmission mechanism 2, the bottom plate frame 3, the unlocking handle 4, the bottom plate 5, the emergency unlocking rod 6, the "sea urchin" neutrino buoy deployment device is configured with a dismounting mechanism on the top of both sides of the bottom plate frame, and the two are mirror-symmetrically arranged. When the deployment device reaches the seabed and is ready to release the detection balls, the ROV manipulator is operated to rotate the unlocking handle in the clockwise direction as shown in the drawing. The end of the unlocking handle is wound with a steel wire, and the steel wire is connected with the lock body in the dismounting mechanism on one side near the unlocking handle. At the same time, the steel wire also passes through the inside of the dismounting transmission mechanism and is connected with the lock body in the other dismounting mechanism. After rotating the unlocking handle, the steel wire is pulled to drive the two sides of the dismounting mechanism to be unlocked synchronously. The upper structure of the deployment device, such as the rotating disc, the floating frame and the buoyancy material, rises under the action of buoyancy. During this period, the rotating disc rotates continuously to release the detection balls one by one, and the deployment operation is completed.

[0060] If a special situation is encountered at the seabed (such as the dismounting transmission mechanism is deformed due to impact, so that the two sides of the dismounting mechanism cannot be unlocked synchronously), at this time, the emergency unlocking rod at the top of the two sides of the dismounting mechanism can be pulled apart by the ROV manipulator in the horizontal direction as shown in the drawing, so as to complete the release of the upper structure of the deployment device, such as the rotating disc, the floating frame and the buoyancy material.

[0061] As shown in Figure 2As shown, under normal conditions, by following Figure 1 As shown, rotating the unlocking handle clockwise on the ROV robotic arm controls the detachment of the steel wire inside the transmission mechanism. Figure 2 As shown, pull the internal lock of the detachment mechanism in the lower right direction to simultaneously unlock both detachment mechanisms. In case of unexpected situations, operate the ROV robotic arm according to... Figure 2 As shown, pull the emergency unlocking levers on the top of the two unloading mechanisms one by one in a horizontal rightward direction to release the upper structure of the deployment device, including the deployment device turntable, the floating frame, and the buoyancy material.

[0062] like Figure 3 As shown,

[0063] The internal locks of the unloading mechanisms can be opened by rotating the unlocking handle to unlock both sides simultaneously, or by pulling the emergency unlocking lever one by one to unlock each unloading mechanism, thus releasing the upper structure of the deployment device.

[0064] Example 2

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

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

[0067] Steps 2 and 3: Develop simulation or experimental models based on the design drawings to analyze the structural strength and other indicators of the neutrino buoy deployment device's detachment transmission and emergency unlocking mechanism.

[0068] Step 4: Determine the mass of the upper structure of the deployment device, such as the floating frame, turntable, and buoyancy material, based on the actual situation.

[0069] Step 5: Based on the mass of the upper structure of the deployment device determined in Step 4, further determine the specifications of the materials used in the emergency unlocking mechanism and its related components (such as the shape and volume of the internal locking tongue and latch of the release mechanism).

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

[0071] Step 8: Determine the material of the sheath of the unloading transmission mechanism based on the friction coefficient of the adjusted unloading mechanism shell material and the actual seawater depth during operation.

[0072] Step 9: Determine the strength of the steel wire used in the unloading transmission mechanism by the mass of the upper structure of the deployment device, thereby further confirming the material of the steel wire (it must be made of special steel material with high toughness and high strength).

[0073] Step 10: The movement of the locking tongue and the locking buckle inside the dismounting mechanism during the unlocking process is determined through a mechanical structure verification test of the unlocking process of the dismounting mechanism.

[0074] Step 11: The design rotation stroke of the unlocking handle of the dismounting mechanism and the length of the steel wire inside the dismounting transmission mechanism are determined according to the numerical simulation results and in combination with the model test.

[0075] Step 12: The parameters of the dismounting transmission and the emergency unlocking mechanism that meet the actual requirements are preliminarily determined through the above steps.

[0076] Step 13: The parameters of the dismounting transmission and the emergency unlocking mechanism are optimized according to the model test and the numerical simulation results, and the optimization is repeated iteratively to obtain better results.

[0077] Step 14: The performance indicators (such as strength, synchronous unlocking success rate, and emergency unlocking success rate) of the dismounting transmission and the emergency unlocking mechanism after the iterative optimization design are checked and verified through the model test and the numerical simulation.

[0078] The preferred embodiments of the present application are described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and changes to the present application without creative labor based on the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the existing technology according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. A detachment transmission and emergency unlocking mechanism for a neutrino buoy deployment device, characterized in that, It includes a first unloading mechanism, a second unloading mechanism, an unloading transmission mechanism, a base plate frame, an unlocking handle, a first emergency unlocking lever, and a second emergency unlocking lever. The unloading transmission mechanism consists of an outer sheath and a first steel wire and a second steel wire inside the sheath. The first and second unloading mechanisms are respectively installed at both ends of the base plate frame, and the unlocking handle is installed on the base plate frame. One end of the first steel wire is connected to the unlocking handle, and the other end is connected to the first disengagement mechanism. One end of the second steel wire is connected to the unlocking handle, and the other end is connected to the second disengagement mechanism. The first and second unloading mechanisms are mirror-symmetric. The first emergency unlocking lever is connected to the first detachment mechanism, and the second emergency unlocking lever is connected to the second detachment mechanism. When the unlocking handle is rotated, the first and second unloading mechanisms are unlocked simultaneously through the unloading transmission mechanism.

2. The detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device as described in claim 1, characterized in that, The detachment mechanism includes a first locking element, a second locking element, a first elastic element, a second elastic element, and an outer plate of the lock body; One end of the first elastic element is fixed, and the other end of the first elastic element is connected to the first locking element; 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 member is rotatable about a first axis, and the second locking member is rotatable about a second axis; When the unloading mechanism is in the locked state, the first locking member and the second locking member cooperate, 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 lever, which is configured to pull the first locking element; The inner side of the outer plate of the lock body is provided with a first rotating rod and a second rotating rod. The first locking member rotates around the first rotating rod, and the second locking member rotates around the second rotating rod.

3. The detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device as described in claim 2, characterized in that, The release mechanism also includes a lock body base plate, which is located on one end face of the outer plate of the lock body.

4. The detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device as described in claim 2, characterized in that, The first locking element is a latch structure, and the second locking element is a latch structure, wherein the protrusion of the second locking element and the concave part of the first locking element cooperate with each other.

5. The detachment transmission and emergency unlocking mechanism for the neutrino buoy deployment device according to claim 4, characterized in that, The disengagement mechanism further includes a first connecting rod and a second connecting rod. A third rotating rod is also vertically provided on the inner side 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 lock.

6. The detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 5, characterized in that, The detachment mechanism further includes a third elastic element, 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 detachment mechanism is in the locked state, the third elastic element is in the relaxed state.

7. The detachment transmission and emergency unlocking mechanism for the neutrino buoy deployment device according to claim 6, characterized in that, The inner side of the outer plate of the lock body is also provided with a stop, which limits the first connecting rod.

8. The detachment transmission and emergency unlocking mechanism for the neutrino buoy deployment device according to claim 6, characterized in that, The first elastic element, the second elastic element, and the third elastic element are springs.

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

10. A parameter optimization design method for the detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device according to claim 1, characterized in that, Includes the following steps: Step 1: Obtain the overall design scheme of the detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device, including structural drawings and component drawings; Step 2: Develop a simulation model based on the design drawings to analyze the structural strength indicators of the detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device; Step 3: Develop an experimental model based on the design drawings to analyze the structural strength indicators of the detachment transmission and emergency unlocking mechanism of the neutrino buoy deployment device; Step 4: Determine the mass of the floating frame, turntable, and upper structure of the buoyancy material of the deployment device based on the actual situation; Step 5: Based on the mass of the upper structure of the deployment device determined in Step 4, determine the specifications of the materials and related components used in the emergency unlocking mechanism; Step 6: Determine the overall volume of the unloading mechanism; Step 7: Determine the overall mass of the unloading mechanism; Step 8: Determine the material of the sheath for the unloading transmission mechanism based on the friction coefficient of the adjusted unloading mechanism housing material and the actual seawater depth during operation; Step 9: Determine the strength of the steel wire used in the unloading 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 on the unlocking process of the release mechanism to determine the movement of the locking tongue and latch inside the release mechanism during the unlocking process; Step 11: Based on the numerical simulation results and combined with model tests, determine the design rotation stroke of the unlocking handle of the unloading mechanism and the length of the internal steel wire of the unloading transmission mechanism; Step 12: Based on the above steps, preliminarily determine the parameters of the detachment transmission and emergency unlocking mechanism that meet the actual requirements; Step 13: Optimize the parameters of the detachment transmission and emergency unlocking mechanism based on the model test and numerical simulation results, iterate repeatedly, and continuously obtain better results; Step 14: Verify and validate the performance indicators of the detachment transmission and emergency unlocking mechanism after iterative optimization design through model tests and numerical simulations.

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