An ice breaking test device for an underwater float

Abstract

This invention discloses an underwater floating ice-breaking test device, comprising an ice-water pool and an ice-breaking device. The ice-water pool is used to prepare an ice layer. The ice-breaking device includes a platform and multiple floating bodies. The platform is located at the bottom of the ice-water pool, and the multiple floating bodies are arranged in an array. The floating bodies are connected to the platform by a locking mechanism, which can lock or release the floating bodies. This application can realize the release of floating bodies at a specified position, number, and sequence, thereby enabling the study of the mechanism of single or multiple floating bodies freely rising and breaking ice in one go. It can also explore the ice-breaking load characteristics, structural deformation laws, ice layer damage modes, and ice-breaking mechanisms of floating bodies under the influence of variables such as impact velocity, shape, and impact angle.

Description

Technical Field

[0001] This invention relates to the technical field of underwater icebreaking test devices, specifically to an underwater floating body icebreaking test device. Background Technology

[0002] With the increasing demand for resource exploration and scientific research beneath polar ice caps, researchers can deploy underwater robots by drilling holes in the ice surface to explore and discover the subglacial ecosystem, topography, and petroleum resources. However, due to the complex environment of waves and currents in the subglacial waters, polar underwater robots often face the challenge of not being able to return to their initial drilling location. Therefore, new icebreaking methods are needed for underwater robots that encounter ice traps in polar ice caps.

[0003] Patent CN117890074A discloses a device for constraining and floating ice-breaking models of underwater objects in ice-water pools. The device includes a pair of horizontal supports, with a fixed pulley at the top of the horizontal supports and a motor on the outside of the horizontal supports. The motor is connected to a lifting rope, which passes around the fixed pulley and is connected to a slider. The slider is located on a straight rail on the horizontal supports and is connected to a lifting vertical bracket. The two lifting vertical brackets are respectively connected to one end of a lifting truss. An underwater object model is fixedly installed on the lifting truss, and a heating rod is inserted into the lifting vertical bracket.

[0004] The aforementioned existing technologies are unable to study the mechanism of single or multiple floating bodies freely rising and breaking ice in one go. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an underwater floating body ice-breaking test device to solve the technical problem that existing technologies cannot study the mechanism of single or multiple floating bodies freely rising and breaking ice in one go.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This invention provides an underwater floating body icebreaking test device, comprising:

[0008] Ice water pool, used for preparing ice layers; and

[0009] An ice-breaking device includes a platform and multiple floats. The platform is located at the bottom of the ice water pool, and the multiple floats are arranged in an array. The floats are connected to the platform by a locking mechanism, which can lock or release the floats.

[0010] In some embodiments, the locking mechanism includes an electromagnet and an adsorption element. The electromagnet is disposed on the platform, and the adsorption element is disposed on the float. The electromagnet and the adsorption element are magnetically attracted to each other to fix the float to the float.

[0011] In some embodiments, the platform is movably arranged in a vertical direction so that the distance between the float and the ice layer is adjustable.

[0012] In some embodiments, the ice-breaking device further includes a first base and a lifting assembly. The first base is disposed at the bottom of the ice water pool, and a platform is movably mounted on the first base in a vertical direction. The lifting assembly is connected to the platform to drive the platform to move in a vertical direction.

[0013] In some embodiments, the lifting assembly has a lifting part that is movably arranged in the vertical direction, and the platform is rotatably mounted on the lifting part along an axis in the horizontal direction;

[0014] The ice-breaking device also includes a first drive component, which is connected to the platform to drive the platform to rotate.

[0015] In some embodiments, the lifting assembly is rotatably mounted on the first base along an axis in the vertical direction.

[0016] In some embodiments, the first seat is movably disposed along a first direction, such that the position of the platform within the ice water pool is adjustable in the first direction.

[0017] In some embodiments, the ice-breaking device further includes a plurality of recovery components, each corresponding to a plurality of floats. The recovery components are disposed on the platform and connected to the floats, and the recovery components recover the floats.

[0018] In some embodiments, the recovery assembly includes a reel, a rope, and a motor. The reel is rotatably mounted on the platform. One end of the rope is connected to the float, and the other end of the rope is wound around the reel. The motor is connected to the reel to drive the reel to rotate forward or backward.

[0019] In some embodiments, a data acquisition device is provided in the buoy body, the data acquisition device including at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor, and a gyroscope.

[0020] Compared with the prior art, the underwater floating body icebreaking test device provided by the present invention has a platform set at the bottom of the ice water pool. Multiple locking mechanisms are arranged in an array on the upper side of the platform. The floating body is installed on the locking mechanisms. In specific use, the platform is first placed at a predetermined position at the bottom of the ice water pool, then the floating body is installed on the locking mechanisms. Water is then poured into the ice water pool until a predetermined height is reached. An ice layer is then prepared in the ice water pool using outdoor ambient temperature or indoor equipment. Once the ice layer reaches the expected thickness, the floating body icebreaking test can be conducted. Subsequently, the locking mechanisms release the floating body, allowing one or more floating bodies to rise under their own buoyancy and break the ice layer, thus completing the icebreaking experiment. This application can achieve the release of floating bodies at a specified position, number, and sequence, thereby enabling the study of the mechanism of single or multiple floating bodies freely rising and breaking ice in one go. It can also explore the icebreaking load characteristics, structural deformation laws, ice layer damage modes, and icebreaking mechanisms of floating bodies under the influence of variables such as impact speed, shape, and impact angle of different floating bodies.

[0021] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an embodiment of the underwater floating body ice-breaking test device provided by the present invention;

[0023] Figure 2 yes Figure 1 Front view of the ice-breaking device;

[0024] Figure 3 yes Figure 1 Top view of the ice-breaking device;

[0025] Figure 4 yes Figure 1 Cross-sectional view of the platform and the floating body;

[0026] Figure 5 yes Figure 4 Partial cross-sectional view of the central platform and floating body.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Ice pool, 11-Ice layer, 12-Guide rail, 2-Icebreaking device, 21-Platform, 22-Float, 23-Electromagnet, 24-First seat, 25-Lifting assembly, 251-Lifting part, 26-First drive assembly, 27-Second seat, 28-Second drive assembly, 281-Drive gear, 282-Driven gear, 283-Second drive motor, 29-Recovery assembly, 291-Reel, 292-Rope, 293-Motor, 3-Data acquisition device. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] To address the technical problem that existing technologies cannot study the mechanism of single or multiple floats freely rising and breaking ice in one go, this invention provides an underwater float ice-breaking test device. This device can release floats at specified locations, in a specified number and sequence, thereby enabling the study of the mechanism of single or multiple floats freely rising and breaking ice in one go. It can also explore the ice-breaking load characteristics, structural deformation laws, ice damage modes, and ice-breaking mechanisms of floats under the influence of variables such as impact velocity, shape, and impact angle of different floats.

[0031] Please see Figure 1 , Figure 1 This is a schematic diagram of the underwater floating body ice-breaking test device in one embodiment of the present invention.

[0032] The present invention provides an underwater floating body 22 ice-breaking test device, including an ice water pool 1 and an ice-breaking device 2. The ice water pool 1 is used to prepare an ice layer 11. The ice-breaking device 2 includes a platform 21 and a plurality of floating bodies 22. The platform 21 is located at the bottom of the ice water pool 1. The plurality of floating bodies 22 are arranged in an array. The floating bodies 22 are connected to the platform 21 by a locking mechanism. The locking mechanism can lock or release the floating bodies 22.

[0033] In this embodiment, please refer to Figure 1 and Figure 3The platform 21 is located at the bottom of the ice water pool 1. Multiple locking mechanisms are arranged in an array on the upper side of the platform 21. The float 22 is mounted on the locking mechanisms. In actual use, the platform 21 is first placed at a predetermined position at the bottom of the ice water pool 1. Then, the float 22 is mounted on the locking mechanisms. Water is then poured into the ice water pool 1 until a predetermined height is reached. An ice layer 11 is then prepared in the ice water pool 1 using outdoor ambient temperature or indoor equipment. Once the ice layer 11 reaches the expected thickness, an ice-breaking test of the float 22 can be conducted. Subsequently, the locking mechanism releases the float 22, causing one or more floats 22 to float upwards under their own buoyancy, and the floats 22 break the ice layer 11, thus completing the ice-breaking experiment. This application can release floats 22 at a specified position, number, and sequence, thereby allowing the study of the mechanism of one or more floats 22 freely floating and breaking ice in one go. At the same time, it can also explore the ice-breaking load characteristics of floats 22, the structural deformation law of floats 22, the damage mode of ice layer 11, and the ice-breaking mechanism under the influence of variables such as impact speed, shape, and impact angle of different floats 22.

[0034] In this embodiment, the specific form of the float 22 is not limited. The shape of the float 22 can be spherical, ellipsoidal, square, or other shapes, and can be configured according to actual conditions. For ease of explanation, the following description assumes that the float 22 is spherical.

[0035] In one embodiment, please refer to Figure 2 and Figure 4 The locking mechanism includes an electromagnet 23 and an adsorption component. The electromagnet 23 is disposed on the platform 21, and the adsorption component is disposed on the float 22. The electromagnet 23 and the adsorption component are magnetically attracted to each other to fix the float 22 to the float 22.

[0036] In this embodiment, the electromagnet 23 is installed on the upper side of the platform 21. The electromagnet 23 has an energized state and an de-energized state. The adsorption member is located on the lower side of the float 22 and corresponds to the electromagnet 23. When it is in the energized state, the electromagnet 23 is magnetic and can magnetically engage with the adsorption member to fix the float 22 on the platform 21. When an ice-breaking experiment is required, the electromagnet 23 can be controlled to be in the de-energized state. At this time, the electromagnet 23 loses its magnetism, the electromagnet 23 is released from the adsorption member, and the float 22 floats up and breaks the ice under the action of its own buoyancy, thus completing the experiment.

[0037] It should be noted that each of the electromagnets 23 is independent and controlled separately, so that the ice-breaking mechanism of a single float 22 or multiple floats 22 rising simultaneously or multiple floats 22 rising in a specific order can be studied.

[0038] Furthermore, since the float 22 is spherically shaped, in order to increase the surface area of ​​the electromagnet 23 and the adsorption element, the upper side of the electromagnet 23 is provided with an arc-shaped groove. The groove is adapted to the float 22, and the float 22 is disposed in the groove. This arrangement can increase the contact area between the electromagnet 23 and the adsorption element, and enhance the adsorption force between the two.

[0039] Furthermore, the specific form of the adsorption element is not limited. It can be that the adsorption element is arc-shaped and adapted to the float 22, the adsorption element is bonded to the lower side of the float 22, and the adsorption element is made of iron. Alternatively, the float 22 can be made of iron, so that the float 22 itself constitutes the adsorption element to magnetically cooperate with the electromagnet 23.

[0040] In another embodiment, a connecting ring is provided on the lower side of the float 22; the locking mechanism includes a locking ring and a driver. The locking ring is rotatably mounted on the platform 21 along a horizontal axis. The locking ring has a notch that connects to the internal space of the locking ring. The locking ring passes through the notch into the connecting ring. The driver is connected to the locking ring to drive the locking ring to rotate. In specific use, when the locking ring rotates to the position where the notch faces upward, the connecting ring can be inserted into the locking ring, and then the locking ring is rotated so that the notch faces the other position. At this time, the locking ring is connected to the connecting ring, thereby achieving the purpose of fixing the float 22. When it is necessary to release the float 22, the locking ring is rotated so that the notch faces upward. At this time, the connecting ring can disengage from the locking ring, completing the release.

[0041] In one embodiment, please refer to Figure 2 The platform 21 is movably arranged in the vertical direction so that the distance between the float 22 and the ice layer 11 is adjustable.

[0042] In this embodiment, the platform 21 is vertically movable, allowing the height of the float 22 to be adjustable. This enables the adjustment of the distance between the float 22 and the ice layer 11, thus allowing the investigation of the ice-breaking load characteristics, structural deformation patterns, ice layer 11 damage modes, and ice-breaking mechanisms of the float 22 at different initial release positions. Furthermore, when the platform 21 moves the float 22 vertically, it can impart different initial velocities to the float 22, thereby allowing the investigation of the impact of different initial velocities on ice breaking.

[0043] In one embodiment, please refer to Figure 2The ice-breaking device 2 also includes a first base 24 and a lifting assembly 25. The first base 24 is located at the bottom of the ice water pool 1, and the platform 21 is movably installed on the first base 24 in the vertical direction. The lifting assembly 25 is connected to the platform 21 to drive the platform 21 to move in the vertical direction.

[0044] In this embodiment, the first seat 24 is located at the bottom of the ice water pool 1, and the platform 21 is installed on the first seat 24 through the lifting assembly 25, so that the platform 21 can move vertically relative to the first seat 24, thereby adjusting the initial position of the float 22.

[0045] Furthermore, the lifting assembly 25 includes one of a pneumatic cylinder, a hydraulic cylinder, and an electric cylinder. The following description uses an electric cylinder as an example. The electric cylinder is mounted on the first base 24, with its push rod facing upwards. The platform 21 is mounted on the upper end of the push rod, thereby driving the platform 21 to move vertically via the electric cylinder. Since the lifting assembly 25 is located on the first base 24 and inside the ice-water pool 1, without using a vertical lifting device suspended across the ice-water interface for control, the prepared ice layer 11 has more ideal fixed boundary conditions. Furthermore, the boundary conditions will not change due to the reciprocating motion of the suspended vertical lifting device during the experiment. In addition, a flat and intact ice surface is more conducive to setting up cameras, video recorders, and action cameras at any position above it, enabling better capture of image data of the ice-breaking process.

[0046] In one embodiment, please refer to Figure 2 and Figure 4 The lifting assembly 25 has a lifting part 251 that is movably arranged in the vertical direction, and the platform 21 is rotatably mounted on the lifting part 251 along the horizontal axis; the ice-breaking device 2 also includes a first driving assembly 26, which is connected to the platform 21 to drive the platform 21 to rotate.

[0047] In this embodiment, the push rod constitutes the lifting part 251, and the bottom of the platform 21 is rotatably mounted on the upper end of the push rod along the horizontal axis, so that the platform 21 can rotate relative to the horizontal plane, thereby adjusting the tilt angle of the platform 21 and the float 22 relative to the horizontal plane. In this way, the effects of different tilt angles on the ice-breaking load characteristics of the float 22, the structural deformation law of the float 22, the damage mode of the ice layer 11, and the ice-breaking mechanism can be investigated.

[0048] Furthermore, the upper end of the push rod is provided with a mounting plate, and two spaced mounting protrusions are formed on the upper side of the mounting plate. The two mounting protrusions enclose a mounting groove, and the mounting protrusions are provided with mounting holes that communicate with the mounting groove. A connecting rod is provided in the middle of the lower side of the platform 21. The lower end of the connecting rod is provided with a rotating shaft extending in the horizontal direction. The lower end of the connecting rod is adapted to the mounting groove, and the lower end of the connecting rod is located in the mounting groove. The rotating shaft is rotatably installed in the mounting hole, and one end of the rotating shaft extends out of the mounting hole. The first drive assembly 26 includes a first drive motor 293. The main shaft of the first drive motor 293 is fixedly connected to one end of the rotating shaft, thereby driving the platform 21 to rotate through the first drive motor 293.

[0049] In one embodiment, please refer to Figure 2 The lifting assembly 25 is rotatably mounted on the first base 24 along the vertical axis.

[0050] In this embodiment, in order to enable the platform 21 to rotate in all directions, the ice-breaking device 2 further includes a second base 27 and a second drive assembly 28. The second base 27 is rotatably mounted on the first base 24 along a vertical axis. The lifting assembly 25 is mounted on the second base 27, and the second drive assembly 28 is located on the first base 24. The second drive assembly 28 is connected to the second base 27, thereby driving the second base 27 and the lifting assembly 25 to rotate. By rotating the lifting assembly 25, the platform 21 can rotate in all directions, which is beneficial for exploring the influence of angle on ice breaking.

[0051] Furthermore, the second drive assembly 28 includes a drive gear 281, a driven gear 282, and a second drive motor 283. The drive gear 281 is rotatably mounted on the upper side of the first base 24 along an axis in the vertical direction. The driven gear 282 is sleeved on the outer periphery of the second base 27 and fixedly connected to the second base 27. The drive gear 281 and the driven gear 282 mesh. The main shaft of the second drive motor 283 is connected to the rotating gear, thereby driving the gear meshing through the second drive motor 283, which in turn drives the second base 27 to rotate.

[0052] In one embodiment, please refer to Figure 1 and Figure 2 The first seat 24 is movable along a first direction so that the position of the platform 21 in the ice water pool 1 is adjustable in the first direction.

[0053] In this embodiment, the first seat 24 is configured as a mobile trolley, which can move along the length direction (i.e., the first direction) of the ice water pool 1, thereby making the position of the float 22 adjustable in the first direction. Since the ice water pool 1 is relatively long, after an ice-breaking test is conducted in one area, only the ice layer 11 in that area is broken, while the remaining ice layers 11 can continue to be tested. At this time, the mobile trolley can be used to move the float 22 to an area where the remaining ice layers 11 are intact for a second ice-breaking test, until the entire ice water pool 1 is cleared. The ice layer 11 is completely destroyed. This setup eliminates the need to completely clear the ice from the previous icebreaking zone and re-prepare an ice layer 11 of fixed thickness, greatly shortening the cycle of repeatable tests and reducing test costs. At the same time, the mobile trolley can also provide the float 22 with an initial velocity along the first direction. This means that not only can the float 22 be vertically floated upward to break the ice in a designated area, but the float 22 can also be released instantaneously during horizontal movement using a trailer, allowing the float 22 to float upward at an angle to break the ice. This facilitates the study of the effect of different horizontal initial velocities on the icebreaking of the float 22.

[0054] In this embodiment, the bottom of the ice water pool 1 is also provided with two guide rails 12. The guide rails 12 extend along a first direction and are spaced apart along a second direction. The mobile trolley is mounted on the two guide rails 12. The guide rails 12 can be used to lower the mobile trolley so that it can only move along the first direction.

[0055] In one embodiment, please refer to Figure 4 and Figure 5 The ice-breaking device 2 also includes multiple recovery components 29, each of which corresponds to one of the multiple floats 22. The recovery components 29 are located on the platform 21 and connected to the floats 22. The recovery components 29 recover the floats 22.

[0056] In this embodiment, since multiple ice-breaking tests can be conducted in the ice water pool 1, the platform 21 is also equipped with a recovery component 29. The recovery component 29 can recover the floating body 22 that has floated up and fix it back to the electromagnet 23, thereby facilitating the next ice-breaking test.

[0057] In one embodiment, please refer to Figure 4 and Figure 5 The recovery assembly 29 includes a reel 291, a rope 292, and a motor 293. The reel 291 is rotatably mounted on the platform 21. One end of the rope 292 is connected to the float 22, and the other end of the rope 292 is wound around the reel 291. The motor 293 is connected to the reel 291 to drive the reel 291 to rotate forward or backward.

[0058] In this embodiment, the platform 21 has an internal mounting cavity and multiple first through holes, all of which connect to the mounting cavity and are arranged in an array. The electromagnet 23 has a second through hole in its center, corresponding to the first through hole. The reel 291 is rotatably mounted within the mounting cavity. One end of the rope 292 passes through the first and second through holes and connects to the float 22. The other end of the rope 292 is wound around the reel 291. The motor 293 is connected to the reel 291. When the motor 293 drives the reel 291 to rotate forward, the reel 291 can wind up the rope 292. When the motor 293 drives the reel 291 to rotate in the reverse direction, the reel 291 can unwind the rope 292. When an ice-breaking test is required, the electromagnet 23 is de-energized, and the motor 293 drives the reel 291 to rotate in the reverse direction. At this time, the float 22 floats up to break the ice. After the ice is broken, the motor 293 drives the reel 291 to rotate in the forward direction, and the rope 292 drives the float 22 to move downward until the float 22 contacts the electromagnet 23. At this time, the electromagnet 23 is energized, and the electromagnet 23 and the adsorption element magnetically cooperate to fix the float 22 on the platform 21. This setting facilitates the recovery of the float 22, and the operation is simple and convenient.

[0059] Furthermore, the rope 292 and the float 22 are detachably connected. During the ascent of the float 22, the rope 292 may exert a certain drag force on the float 22, which may affect the accuracy of the test results. Therefore, the rope 292 and the float 22 can be separated and not retrieved as needed.

[0060] In one embodiment, please refer to Figure 4 and Figure 5 The float 22 is equipped with a data acquisition device 3, which includes at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor, and a gyroscope.

[0061] In this embodiment, action cameras and other photography and video equipment can be placed under and on the surface of the ice layer 11 to record the entire process of the buoy 22 breaking through the ice.

[0062] It is understandable that when the float 22 cannot break the ice in a thicker ice layer 11, the float 22 can be pre-loaded with explosives. Multiple floats 22 arranged below the ice plate can be used to break the ice by detonating simultaneously or not simultaneously.

[0063] To better understand this invention, the following is combined with... Figures 1 to 5 The technical solution of the present invention will be described in detail below:

[0064] Before the experiment begins, the mobile trolley is first installed on the guide rail 12 inside the ice water pool 1, which is not yet filled with water. According to the experimental requirements, various data acquisition devices such as accelerometers, force sensors, displacement sensors, strain sensors, or gyroscopes are installed inside the float 22. The ice-breaking device 2 is debugged to ensure it can work normally under waterless conditions. Then, water is added to the ice water pool 1 to the expected height, and the ice-breaking device 2 is re-installed to ensure it works normally underwater. Next, an ice layer 11 is prepared using the outdoor ambient temperature or an artificially set indoor temperature. Once the ice layer 11 reaches the expected thickness, the first set of ice-breaking tests on the float 22 is prepared. The lifting assembly 25 drives the platform 21 and the float 22 to move vertically, adjusting the initial vertical velocity and initial water depth of the float 22. The movement of the mobile trolley along the first direction adjusts the initial horizontal velocity of the float 22. The first drive assembly 26 and the second drive assembly 28 adjust the initial angle of the platform 21. Once the float 22 reaches the designated position and meets the initial conditions... Afterwards, the electromagnet 23 is de-energized, and the motor 293 drives the reel 291 to rotate in the reverse direction, releasing the floats 22 at designated positions, in designated quantities, and in designated order to complete the icebreaking test of the floats 22. After the icebreaking test is completed, the motor 293 drives the reel 291 to rotate in the forward direction, moving the floats 22 downwards via the rope 292 until the floats 22 contact the electromagnet 23. At this point, the electromagnet 23 is energized, connecting the floats 22 to the platform 21. Subsequently, the platform 21 is... The platform is restored to its initial underwater height and moved forward by the mobile trolley until it is at a distance from the ice-breaking zone generated by the first set of tests. This minimizes the impact of the ice layer 11 boundary effect on the next set of tests. The above operation is repeated to conduct multiple sets of ice-breaking tests on the float 22 under different working conditions until a suitable ice-breaking area cannot be found along the length of the ice-water pool 1. At this point, the platform 21 is moved back to its initial underwater position, the broken ice is cleared, and the preparation of ice layers of a specified thickness and the ice-breaking test are repeated until the corresponding number of sets of tests and working conditions are completed.

[0065] Compared to existing icebreaking methods that adjust ballast water to achieve the up-and-down reciprocating motion of the float 22, this application directly releases the float 22 underwater for free buoyancy icebreaking, eliminating the need for subsequent electric-driven adjustment of ballast water, resulting in better energy saving.

[0066] This application utilizes the switching on and off of the electromagnet 23 to achieve high-precision free release of multiple floats 22, and utilizes the recovery component 29 to achieve rapid return and recovery of multiple floats 22 after the icebreaking test.

[0067] This application can adjust the initial release position, speed, angle, number and sequence of the float 22, thereby exploring the ice-breaking load characteristics of the float 22, the structural deformation law of the float 22, the damage mode of the ice layer 11 and the ice-breaking mechanism under the influence of different variables.

[0068] This application eliminates the need for repeated adjustments to ballast water and mechanical rotation, resulting in a simple structure and low cost.

[0069] The ice-breaking mechanism of the float 22 in this application is controlled by a moving trolley at the bottom of the ice-water pool 1. After a set of tests is completed, it can quickly move to the position below the next set of floating ice-breaking positions along the length of the ice-water pool 1. It is not necessary to completely clear the ice from the previous set of ice-breaking areas and re-prepare an ice layer 11 of fixed thickness, which greatly shortens the cycle of repeatable tests and reduces the test cost.

[0070] Since the movement of platform 21 is not controlled by a lifting vertical support that spans the ice-water interface, the prepared ice layer 11 has more ideal fixed boundary conditions. Furthermore, the boundary conditions will not change due to the up-and-down reciprocating movement of the suspended lifting vertical support during the experiment. In addition, the flat and intact ice surface is more conducive to setting up cameras, video recorders and action cameras at any position above it, which can better capture image data of the ice-breaking process of the float 22.

[0071] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An icebreaking test device for an underwater float, characterized in that It comprises: An ice water pool for preparing ice layer; And An ice breaking device comprising a platform and a plurality of floating bodies, the platform is arranged at the bottom of the ice water pool, a plurality of the floating bodies are arranged in an array, the floating bodies are connected to the platform through a locking mechanism, the locking mechanism can lock or release the floating bodies; Wherein, the platform is movably arranged along the vertical direction, so that the distance between the floating bodies and the ice layer can be adjusted; The ice breaking device further comprises a first seat and a lifting assembly, the first seat is arranged at the bottom of the ice water pool, the platform is movably arranged along the vertical direction on the first seat, and the lifting assembly is connected with the platform to drive the platform to move along the vertical direction; The ice breaking device further comprises a plurality of recovery assemblies, a plurality of the recovery assemblies correspond to a plurality of the floating bodies one by one, the recovery assemblies are arranged on the platform, the recovery assemblies are connected with the floating bodies, and the recovery assemblies recover the floating bodies; The recovery assembly comprises a reel, a rope and a motor; The locking mechanism comprises an electromagnet and a suction accessory, the electromagnet is arranged on the platform, the suction accessory is arranged on the floating body, the electromagnet and the suction accessory are magnetically attracted to fix the floating body to the floating body; The floating body is arranged in a spherical shape, the upper side of the electromagnet is provided with a groove arranged in an arc shape, the groove is matched with the floating body, and the floating body is arranged in the groove; The rope is detachably connected with the floating body; The platform is internally provided with a mounting cavity, the platform is further provided with a plurality of first through holes, the first through holes are all communicated with the mounting cavity, and the first through holes are arranged in an array, the middle part of the electromagnet is provided with a second through hole, the second through hole corresponds to the first through hole, the second through hole is communicated with the groove, the reel is rotatably arranged in the mounting cavity, one end of the rope is connected with the floating body through the first through hole and the second through hole, the other end of the rope is wound on the reel, the motor is connected with the reel, and the motor drives the reel to rotate forward or reversely, when the motor drives the reel to rotate forward, the reel can wind the rope, and when the motor drives the reel to rotate reversely, the reel can unwind the rope; When the floating body cannot break the ice, the floating body is preloaded with explosives, and a plurality of the floating bodies arranged under the ice plate are simultaneously or non-simultaneously exploded to break the ice; Each electromagnet is independent and controlled respectively, and a single floating body or a plurality of floating bodies are simultaneously floated or sequentially floated according to a specific order.

2. The icebreaking test arrangement for an underwater hull according to claim 1, characterized in that The lifting assembly has a lifting part movably arranged along the vertical direction, and the platform is rotatably arranged on the lifting part along an axis in the horizontal direction; The ice breaking device further comprises a first driving assembly, and the first driving assembly is connected with the platform to drive the platform to rotate.

3. The icebreaking test apparatus for an underwater hull according to claim 1, characterized in that The lifting assembly is rotatably arranged on the first seat along an axis in the vertical direction.

4. The icebreaking test apparatus for an underwater hull according to claim 1, characterized in that The first seat is movably arranged along a first direction, so that the position of the platform in the ice water pool is adjustable in the first direction.

5. The icebreaking test apparatus for an underwater hull according to claim 1, characterized in that The data acquisition device is arranged in the floating body and includes at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor and a gyroscope.

Images