Arc-shaped track underwater vehicle icebreaking test system

Abstract

The invention discloses an arc track underwater vehicle icebreaking test system which comprises a pool body, a lifting assembly and a rotation assembly, the pool body is used for storing water, the lifting assembly is arranged in the pool body and provided with a height-adjustable lifting end and comprises a rotation driving part and a rotation arm, one end of the rotation arm is rotatably installed at the lifting end along the vertical axis, and the other end of the rotation arm is rotatably installed at the rotation end along the vertical axis. The other end of the rotary arm forms a traction end connected with an aircraft model, and the rotary driving piece is in transmission connection with the rotary arm so as to drive the rotary arm to rotate. And the height of the lifting end of the lifting assembly is increased, so that the aircraft model floats up to approach the floating ice. In the floating process of the aircraft model, the rotary driving piece drives the rotary arm to rotate, and then the rotary arm can rotate along the arc-shaped track in the floating process of the aircraft model. Therefore, the moving track of the vehicle model can be closer to the complex moving track of the underwater vehicle, and more diverse icebreaking test data can be obtained, so that the test data have more reference significance.

Description

Technical Field

[0001] The invention relates to the field of icebreaking tests, and in particular to an arc-track underwater vehicle icebreaking test system. Background Art

[0002] In today's polar exploration process, polar icebreaking is very important for polar exploration operations. For underwater vehicles, polar navigation and surfacing, the main threat factors include floating ice, near the surface and thick ice layers. For waters covered with ice, submarines can use their own power to break ice and surface urgently, but the ice in the channel may pose a threat to submarines that break ice and surface. The hydrodynamic load, ice load, flow field between ice-water-submarine and ice layer damage mode of submarines when breaking ice are still unclear, so relevant research is needed.

[0003] The existing underwater vehicle icebreaking test system can be found in the patent application number CN202410197331.2. The existing underwater vehicle usually uses linear motion to surface and break ice. However, in real scenarios, due to the influence of water flow and objective factors such as the turning of the underwater vehicle, the underwater vehicle will cause the underwater vehicle to perform complex arc motion during the icebreaking process.

[0004] Therefore, how to simulate the icebreaking scene of underwater vehicles during arc motion is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose an arc-track underwater vehicle icebreaking test system to solve the technical problem in the prior art that it is difficult to simulate the icebreaking scene of an underwater vehicle during arc motion.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an arc-track underwater vehicle icebreaking test system, comprising: A tank body, which is used to store water; A lifting assembly, which is built into the tank body and has a height-adjustable lifting end; and The slewing assembly includes a slewing drive and a slewing arm. One end of the slewing arm is rotatably installed on the lifting end along a vertical axis, and the other end of the slewing arm forms a traction end connected to the aircraft model. The slewing drive is connected to the slewing arm to drive the slewing arm to rotate.

[0007] In some embodiments, the swing arm includes a first arm body, a second arm body, and a distance adjustment part. One end of the first arm body is rotatably mounted on the lifting end. The second arm body is slidably disposed at the other end of the first arm body. The traction end is located on the second arm body. The distance adjustment part is in transmission connection with the first arm body and the second arm body to drive the second arm body to slide relative to the first arm body and enable the second arm body to stay at any position on its sliding track.

[0008] In some embodiments, a guide hole is formed in the first arm body along its length direction, and the second arm body is movably inserted into the guide hole so that the second arm body slides relative to the first arm body.

[0009] In some embodiments, the distance adjustment part is disposed inside the guide hole.

[0010] In some embodiments, the distance adjustment part includes an electric push rod. One end of the electric push rod is connected to the first arm body, and the other end thereof is connected to the second arm body.

[0011] In some embodiments, a storage groove surrounding the second arm body is formed in the inner wall of the guide hole. The swing arm further includes a sealing ring, and the sealing ring is embedded in the storage groove.

[0012] In some embodiments, the lifting assembly includes a base cylinder, a lifting column, and a lifting driving member. The base cylinder is mounted on the pool body. The lifting column is slidably disposed in the base cylinder. The lifting end is located on the lifting column. The lifting driving member is in transmission connection with the lifting column and the base cylinder to drive the lifting column to slide relative to the base cylinder.

[0013] In some embodiments, the lifting column has a plurality of driving teeth arranged along its length direction. The lifting driving member includes a lifting motor and a lifting gear. The lifting gear is rotatably mounted on the base cylinder, and the lifting gear meshes with the driving teeth. The lifting motor is in transmission connection with the lifting gear to drive the lifting gear to rotate.

[0014] In some embodiments, the lifting column has a mounting hole, and the swing arm has a plunger part. The plunger part is rotatably embedded in the mounting hole so that the swing arm rotates around the mounting hole.

[0015] In some embodiments, the swing assembly further includes a bearing. The outer ring of the bearing is embedded in the mounting hole, and the inner ring of the bearing is sleeved on the plunger part.

[0016] First, let the floating ice float on the water surface in the pool body, and install the vehicle model on the rotary arm. Raise the height of the lifting end of the lifting assembly, so that the vehicle model floats upward and approaches the floating ice. During the upward floating process of the vehicle model, the rotary driving member drives the rotary arm to rotate, so that it can rotate along an arc trajectory during the upward floating process of the vehicle model. This makes the movement trajectory of the vehicle model closer to the complex movement trajectory of the underwater vehicle, obtaining more diverse ice-breaking test data and making the test data more meaningful for reference. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an arc-trajectory underwater vehicle ice-breaking test system provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of a rotary assembly provided by an embodiment of the present invention.

[0018] Description of the reference numerals: pool body 100, lifting assembly 200, base cylinder 210, lifting column 220, driving tooth 221, mounting hole 222, storage cavity 223, lifting driving member 230, lifting motor 231, lifting gear 232, rotary assembly 300, rotary driving member 310, rotary motor 311, rotary gear 312, rotary arm 320, first arm body 321, guide hole 3211, storage groove 3212, plunger portion 3213, transmission tooth 32131, second arm body 322, distance adjustment portion 323, electric push rod 3231, sealing ring 324, bearing 330, vehicle model 400. Detailed Embodiments

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] To solve the technical problem of being difficult to simulate the ice-breaking scenario of an underwater vehicle during the arc movement process, the present invention provides an arc-trajectory underwater vehicle ice-breaking test system, which can make the vehicle model 400 float upward and break ice during the arc movement, so that the movement trajectory of the vehicle model 400 is closer to the complex movement trajectory of the underwater vehicle.

[0021] It should be noted that the arc-trajectory underwater vehicle ice-breaking test system of the present invention is used for underwater vehicle ice-breaking tests, etc. For the convenience of description, in the present invention, the arc-trajectory underwater vehicle ice-breaking test system is used as an example for underwater vehicle ice-breaking tests for description.

[0022] Please refer to Figure 1 , Figure 1It is a structural schematic diagram of an arc-track underwater vehicle icebreaking test system in one embodiment of the present invention. The arc-track underwater vehicle icebreaking test system includes a pool body 100, a lifting assembly 200, a rotating assembly 300 and a vehicle model 400. The pool body 100 is used for storing water. The lifting assembly 200 is built in the pool body 100 and has a height-adjustable lifting end. The rotating assembly 300 includes a rotating drive member 310 and a rotating arm 320. One end of the rotating arm 320 is rotatably installed on the lifting end along a vertical axis, and the other end of the rotating arm 320 forms a traction end connected to the vehicle model. The rotating drive member 310 is connected to the rotating arm 320 to drive the rotating arm 320 to rotate. The vehicle model 400 is installed at one end of the rotating arm 320 away from the lifting end.

[0023] In this embodiment, first, the floating ice is floated on the water surface in the pool 100, and the aircraft model 400 is installed on the rotating arm 320. The lifting end height of the lifting assembly 200 is raised, so that the aircraft model 400 floats up and approaches the floating ice. During the floating process of the aircraft model 400, the rotating drive member 310 drives the rotating arm 320 to rotate, and then the rotating arm 320 can rotate along an arc trajectory during the floating process of the aircraft model 400. The moving trajectory of the aircraft model 400 can be closer to the complex moving trajectory of the underwater aircraft, and more diverse icebreaking test data can be obtained, making the test data more meaningful for reference.

[0024] It is understandable that the length of the swivel arm 320 determines the rotation radius of the aircraft model 400. The greater the length of the swivel arm 320, the greater the rotation radius of the aircraft model 400, and the smaller the length of the swivel arm 320, the smaller the rotation radius of the aircraft model 400.

[0025] It should be emphasized that the length of the rotating arm 320 is adjustable, so that the rotation radius of the aircraft model 400 can be conveniently adjusted, thereby simulating the ice-breaking effect of the underwater aircraft under different rotation radii. In addition, the length of the rotating wall can be continuously changed during the process of the aircraft floating up, so that the rotation radius of the aircraft model 400 can be gradually changed, thereby simulating the ice-breaking effect of the underwater aircraft under the gradual change of the rotation radius.

[0026] The implementation methods of the length-adjustable swivel arm 320 are various, and any support structure that can change its length is feasible. For example, the swivel arm 320 can adopt a multi-section telescopic rod structure similar to a "telescopic antenna". For example, the swivel arm 320 can also be understood as a part of a linear slide rail, so that one end of the linear slide rail is rotatably installed on the lifting end, and the aircraft model 400 is slidably set on the linear slide rail. The part of the linear slide rail between the aircraft model 400 and the lifting end can be understood as the swivel arm 320. The part of the linear slide rail between the aircraft model 400 and the lifting end is adjustable in length, which is equivalent to the adjustable length of the swivel arm 320.

[0027] In some of the preferred embodiments, a rotatable arm 320 with adjustable length is provided. The rotatable arm 320 includes a first arm body 321, a second arm body 322, and a distance adjustment part 323. One end of the first arm body 321 is rotatably mounted on the lifting end, the second arm body 322 is slidably disposed at the other end of the first arm body 321, the distance adjustment part 323 is drivingly connected to the first arm body 321 and the second arm body 322, and the traction end is located on the second arm body 322 to drive the second arm body 322 to slide relative to the first arm body 321 and enable the second arm body 322 to stay at any position on its sliding track. Driving the second arm body 322 to slide relative to the first arm body 321 by means of the distance adjustment part 323 is equivalent to changing the total length of the rotatable arm 320. When the second arm body 322 slides in the direction close to the lifting assembly 200, the total length of the rotatable arm 320 can be shortened. If the second arm body 322 slides in the direction away from the lifting assembly 200, the total length of the rotatable arm 320 can be extended.

[0028] Based on the above embodiments, in some of the embodiments, a guide hole 3211 is formed along the length direction of the first arm body 321, and the second arm body 322 is movably inserted into the guide hole 3211 so that the second arm body 322 slides relative to the first arm body 321. Under the guidance of the inner wall of the guide hole 3211, the second arm body 322 can slide relative to the first arm body 321 along the axial direction of the guide hole 3211.

[0029] It should be emphasized that the assembly relationship between the first arm body 321 and the second arm body 322 is not unique. For example, the guide hole 3211 can be formed on the second arm body 322 and the first arm body 321 can be movably inserted into the guide hole 3211. For example, a slideway can be formed on the first arm body 321 and the second arm body 322 can slide along the slideway.

[0030] Based on the above embodiments, in some of the embodiments, the distance adjustment part 323 is built into the guide hole 3211. Since the distance adjustment part 323 is disposed inside the guide hole 3211, on the one hand, the space occupied by the distance adjustment part 323 can be saved, and on the other hand, the guide hole 3211 can be used to protect the distance adjustment part 323 from being damaged by bumps.

[0031] As long as the implementation manner of the distance adjustment part 323 that can drive the second arm body 322 to slide relative to the first arm body 321 is feasible. In some of the embodiments, the distance adjustment part 323 includes an electric push rod 3231. One end of the electric push rod 3231 is connected to the first arm body 321, and the other end is connected to the second arm body 322. When the electric push rod 3231 expands and contracts, it can drive the second arm body 322 to slide relative to the first arm body 321.

[0032] In some of these embodiments, a receiving groove 3212 surrounding the second arm body 322 is formed in the inner wall of the guide hole 3211. The slewing arm 320 further includes a sealing ring 324, and the sealing ring 324 is embedded in the receiving groove 3212. Since the sealing ring 324 is embedded in the receiving groove 3212, the sealing ring 324 is sleeved on the outer periphery of the second arm body 322, so that the gap between the second arm body 322 and the inner wall of the guide hole 3211 can be filled by the sealing ring 324, improving the sealing performance between the second arm body 322 and the inner wall of the guide hole 3211.

[0033] In some of these embodiments, the lifting assembly 200 includes a base cylinder 210, a lifting column 220, and a lifting driving member 230. The base cylinder 210 is installed on the pool body 100. The lifting column 220 is slidably disposed in the base cylinder 210, and the lifting end is located on the lifting column 220. The lifting driving member 230 is drivingly connected to the lifting column 220 and the base cylinder 210 to drive the lifting column 220 to slide relative to the base cylinder 210. By driving the lifting column 220 to slide along the base cylinder 210 through the lifting driving member 230, the lifting end can be driven to slide in the vertical direction, and further, the slewing arm 320 and the vehicle model 400 can be driven to slide in the vertical direction through the lifting end.

[0034] In some of these embodiments, the lifting column 220 has a plurality of driving teeth 221 arranged along its length direction. The lifting driving member 230 includes a lifting motor 231 and a lifting gear 232. The lifting gear 232 is rotatably installed in the base cylinder 210, and the lifting gear 232 meshes with the driving teeth 221. The lifting motor 231 is drivingly connected to the lifting gear 232 to drive the lifting gear 232 to rotate.

[0035] In some of these embodiments, the lifting column 220 has a mounting hole 222, and the slewing arm 320 has a plunger portion 3213. The plunger portion 3213 is rotatably embedded in the mounting hole 222 so that the slewing arm 320 can rotate around the mounting hole 222. By rotatably embedding the plunger portion 3213 in the mounting hole 222, the slewing arm 320 can rotate around the mounting hole 222 under the mutual cooperation of the mounting hole 222 and the plunger portion 3213.

[0036] Based on the above embodiments, in some of these embodiments, the slewing assembly 300 further includes a bearing 330. The outer ring of the bearing 330 is embedded in the mounting hole 222, and the inner ring of the bearing 330 is sleeved on the plunger portion 3213. Since a bearing 330 is installed between the plunger portion 3213 and the mounting hole 222, the bearing 330 can reduce the frictional force of the rotation of the slewing arm 320.

[0037] In some of these embodiments, the end of the plunger portion 3213 has a number of drive teeth 32131 arranged circumferentially. The rotary drive member 310 includes a rotary motor 311 and a rotary gear 312. The rotary gear 312 is rotatably mounted on the plunger portion 3213. The rotary gear 312 meshes with the drive teeth 32131. The rotary motor 311 is drivingly connected to the rotary gear 312 and drives the rotary gear 312 to rotate, thereby driving the rotary arm 320 to rotate.

[0038] Based on the above embodiments, in some of these embodiments, a storage cavity 223 communicating with the mounting hole 222 is further formed in the lifting column 220. The rotary motor 311 and the rotary gear 312 are disposed in the storage cavity 223. Thus, the sealed storage cavity 223 can be used to protect the rotary motor 311 and the rotary gear 312 from being corroded and damaged.

[0039] It can be understood that the faster the rotational speed of the rotary motor 311, the faster the rotational speed of the rotary arm 320, and correspondingly, the faster the moving speed of the vehicle model 400. However, the moving speed of the vehicle model 400 is not only determined by the rotational speed of the rotary arm 320. The length of the rotary arm 320 also determines the moving speed of the vehicle model 400. And the moving speed of the vehicle model 400 is an important parameter for the ice-breaking test. If it is necessary to maintain the stable moving speed of the vehicle model 400, it is necessary to simultaneously adjust the rotational speed of the rotary arm 320 and the length of the rotary arm 320 to keep the product of the rotational speed of the rotary arm 320 and the length of the rotary arm 320 stable.

[0040] For a better understanding of the present invention, the following Figures 1 to 2 will describe the technical solution of the present invention in detail: First, let the floating ice float on the water surface in the pool body 100, and install the vehicle model 400 on the second arm body 322. Drive the second arm body 322 to slide relative to the first arm body 321 by using the distance adjustment part 323. When the second arm body 322 slides towards the direction close to the lifting assembly 200, the total length of the slewing arm 320 can be shortened. If the second arm body 322 slides away from the lifting assembly 200, the total length of the slewing arm 320 can be extended, so that different radii of rotation of the vehicle model 400 can be obtained. Drive the lifting column 220 to slide along the base cylinder 210 by the lifting driving part 230, so that the lifting end can be driven to slide in the vertical direction. Furthermore, the slewing arm 320 and the vehicle model 400 can be driven to slide in the vertical direction by the lifting end, so that the vehicle model 400 floats upwards and approaches the floating ice. During the upward floating process of the vehicle model 400, the slewing driving part 310 drives the slewing arm 320 to rotate, and thus it can rotate along an arc trajectory during the upward floating process of the vehicle model 400. The movement trajectory of the vehicle model 400 can be closer to the complex movement trajectory of the underwater vehicle, obtaining more diverse ice-breaking test data, making the test data more reference-worthy.

[0041] To more clearly understand the usage scenarios of the technical solution of the present application, several test scenarios that can be simulated by the underwater vehicle ice-breaking test system with an arc trajectory of the present application are briefly described: Scenario 1: The upward ice-breaking scenario with a constant radius of rotation of the vehicle model 400. In this scenario, the length of the slewing arm 320 can be kept stable. The lifting end drives the slewing arm 320 to float upwards, and the slewing arm 320 rotates continuously during the upward floating process, so that the vehicle can maintain a stable radius of rotation during the upward floating process, and thus simulate the upward ice-breaking scenario with a constant radius of rotation of the vehicle model 400.

[0042] Scenario 2: The upward ice-breaking scenario with a gradually changing radius of rotation of the vehicle model 400. In this scenario, the length of the slewing arm 320 can be gradually changed. The lifting end drives the slewing arm 320 to float upwards, and the slewing arm 320 rotates continuously during the upward floating process. Since the length of the slewing arm 320 gradually changes, the radius of rotation of the vehicle can gradually change during the upward floating process, and thus simulate the upward ice-breaking scenario with a gradually changing radius of rotation of the vehicle model 400.

[0043] Scenario 3: The water surface ice-breaking scenario with a constant radius of rotation of the vehicle model 400. In this scenario, after the vehicle model 400 completes the upward ice-breaking, keep the height of the lifting end unchanged, keep the length of the slewing arm 320 stable, and make the slewing arm 320 continue to rotate, then the vehicle model 400 can perform circular motion with a constant radius on the water surface, thus simulating the water surface ice-breaking scenario with a constant radius of rotation of the vehicle model 400.

[0044] Scenario 4: The water surface ice-breaking scenario where the turning radius of the vehicle model 400 gradually changes. In this scenario, after the vehicle model 400 completes the upward ice-breaking, keep the height of the lifting end unchanged, gradually change the length of the slewing arm 320, and let the slewing arm 320 continue to rotate, then the vehicle model 400 can perform a circular motion with a gradually changing radius on the water surface, so as to simulate the water surface ice-breaking scenario where the turning radius of the vehicle model 400 gradually changes.

[0045] It can be understood that Scenario 1 and Scenario 2 are the test scenarios for upward ice-breaking, and Scenario 3 and Scenario 4 are the test scenarios for water surface ice-breaking. Therefore, Scenario 1 can be combined with Scenario 3 (or Scenario 4) to simulate a coherent upward ice-breaking scenario and water surface ice-breaking scenario. Similarly, Scenario 2 can also be combined with Scenario 3 (or Scenario 4) to simulate a coherent upward ice-breaking scenario and water surface ice-breaking scenario.

[0046] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0048] The specific embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An ice-breaking test system for an underwater vehicle with an arc-shaped trajectory, characterized in that Comprising: A pool body for storing water; A lifting assembly built inside the pool body and having a lifting end with adjustable height; And A slewing assembly including a slewing drive and a slewing arm. One end of the slewing arm is rotatably mounted on the lifting end along a vertical axis, and the other end of the slewing arm forms a traction end for connecting a model aircraft. The slewing drive is drivingly connected to the slewing arm to drive the slewing arm to rotate.

2. The arc trajectory underwater vehicle icebreaking test system according to claim 1, wherein, The slewing arm includes a first arm body, a second arm body and a distance adjusting part. One end of the first arm body is rotatably mounted on the lifting end, the second arm body is slidably arranged at the other end of the first arm body, the traction end is located on the second arm body, and the distance adjusting part is drivingly connected to the first arm body and the second arm body to drive the second arm body to slide relative to the first arm body and enable the second arm body to stay at any position on its sliding track.

3. The arc-trajectory underwater vehicle icebreaking test system according to claim 2, wherein, The first arm body is provided with a guide hole along its length direction, and the second arm body is movably inserted into the guide hole so that the second arm body slides relative to the first arm body.

4. The arc-trajectory underwater vehicle ice-breaking test system according to claim 3, wherein, The distance adjusting part is built inside the guide hole.

5. The arc trajectory underwater vehicle icebreaking test system according to claim 4, characterized in that, The distance adjusting part includes an electric push rod. One end of the electric push rod is connected to the first arm body, and the other end is connected to the second arm body.

6. The arc-trajectory underwater vehicle ice-breaking test system according to claim 3, wherein A receiving groove surrounding the second arm body is formed on the inner wall of the guide hole, and the slewing arm further includes a sealing ring embedded in the receiving groove.

7. The arc-trajectory underwater vehicle ice-breaking test system according to claim 1, characterized in that The lifting assembly includes a base cylinder, a lifting column and a lifting drive. The base cylinder is mounted on the pool body, the lifting column is slidably arranged in the base cylinder, the lifting end is located on the lifting column, and the lifting drive is drivingly connected to the lifting column and the base cylinder to drive the lifting column to slide relative to the base cylinder.

8. The arc-trajectory underwater vehicle icebreaking test system according to claim 7, characterized in that, The lifting column has a number of drive teeth arranged along its length direction. The lifting drive includes a lifting motor and a lifting gear. The lifting gear is rotatably mounted on the base cylinder, and the lifting gear meshes with the drive teeth. The lifting motor is drivingly connected to the lifting gear to drive the lifting gear to rotate.

9. The arc-trajectory underwater vehicle ice-breaking test system according to claim 7, characterized in that, The lifting column has a mounting hole, and the slewing arm has a plunger part. The plunger part is rotatably embedded in the mounting hole so that the slewing arm rotates around the mounting hole.

10. The arc trajectory underwater vehicle icebreaking test system according to claim 9, characterized in that, The slewing assembly further includes a bearing. The outer ring of the bearing is embedded in the mounting hole, and the inner ring of the bearing is sleeved on the plunger part.

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