Layered ice restraint system for icebreaking water inlet and outlet model test of navigation body

Abstract

The invention provides a layer ice restraint system for a navigation body icebreaking water inlet and outlet model test, and belongs to the field of navigation body icebreaking water outlet. The system structurally comprises a system transverse moving mechanism which is arranged on the upper edge of a pool or a lifting platform, and a transverse linear guide rail with a platform and closed chain transmission are arranged in the system transverse moving mechanism; the system transverse moving support frame is connected with the buoy and the system transverse moving mechanism; a transverse linear sliding rail with a platform and a closed chain type transmission mechanism are arranged in the limiting frame transverse moving mechanism, and the limiting frame transverse moving mechanism is arranged on the system transverse moving supporting frame and connected with the limiting frame; a longitudinal linear guide rail with a platform and a non-closed chain type transmission mechanism are arranged in the limiting frame longitudinal moving mechanism, and the limiting frame longitudinal moving mechanism is arranged on the limiting frame transverse moving mechanism and connected with the limiting frame. The buoy is used for providing buoyancy for the whole body to reduce the required structural strength, meanwhile, the restrained ice layer has the characteristic of moving along with the water surface, and the device has the advantages of being good in simulation effect, high in ice layer size fitness, simple in structure, low in cost and the like.

Description

Technical Field

[0001] This invention belongs to the field of icebreaking and water entry for ships, and in particular relates to an ice layer constraint system for icebreaking and water entry model tests of ships. Background Technology

[0002] During icebreaking, cross-medium vehicles collide at high speed with layered or fragmented ice, compress the ice layer in all directions, and penetrate it to complete the launch maneuver. Complex interactions occur between the vehicle and the ice layer, and the icebreaking process and stress state directly affect the structural safety and attitude stability of the vehicle. The fracture mode and crack initiation location of the layered ice have a significant impact on the impact on the vehicle. When the ice layer is under different confinement or constraint conditions, its fragmentation mode, fragment size, and splash direction all show significant differences. To conduct research on the icebreaking mechanism and dynamic response of underwater launch vehicles under laboratory conditions, it is usually necessary to construct a controllable simulated polar sea ice environment and reasonably constrain the position, size, and boundary conditions of the layered ice.

[0003] Ice layers under the impact of ships typically exhibit a complex failure mode dominated by bending fracture, shear fracture, and through fracture. The crack propagation direction and fracture angle are highly sensitive to boundary constraints. Among existing publicly available domestic and international experimental setups, the number of ice-fixing devices used for shipboard surface recovery or icebreaking tests is limited. Currently, due to limitations in experimental conditions and cost, ice layer constraints in small-scale experiments mostly rely on the solid walls of the container or simple rigid supports to restrict ice layer movement. However, there is an interaction between the ice layer and the solid walls or rigid supports. When the ice layer impacts metal, it easily introduces additional stress concentration within the ice or alters the ice crack propagation path, thus affecting the accuracy and comparability of experimental results. Even using flexible boundaries such as foam makes it difficult to fix the ice layer in a reliable position required for the experiment. Furthermore, while restricting ice layer displacement, it often causes embedding, compression, or localized thermal conduction effects on the ice, thereby interfering with the natural ice-breaking process. Therefore, it is necessary to propose a new ice-binding device that, while ensuring the stability of the ice layer position and the accuracy of the constraint, minimizes the influence of the constraint structure on ice cracking behavior and fragmentation morphology, so as to meet the requirements of realism and safety for icebreaking tests of underwater launch vehicles.

[0004] Currently, the equipment for restraining sea ice in experiments on the surface of a vessel is not yet perfect, and the main problems are as follows: (1) The interaction between ice and the device. When the restraint device limits the ice layer, it will inevitably interact with the ice. If the contact method or structural design is not reasonable, it is easy to change the stress distribution of the ice layer, affecting the crack initiation location and propagation path; at the same time, the direct contact of high thermal conductivity materials such as metal with the ice may accelerate local melting, reduce the stability of the ice layer, and be detrimental to the repeatability of the experiment; (2) The restraint problem between fixed ice and floating ice. In the experiment, the ice layer is usually in a floating or semi-floating state. Under the combined influence of water ripples, impact of the vehicle and the reaction force of ice breaking, the ice layer is prone to overall drift or attitude change. If the constraint system is set at the bottom of the water tank, it will not only increase the difficulty of ice layer installation and replacement, but also make it difficult to reflect the influence of water movement on the ice layer response. Excessive rigid fixation may cause the ice to bounce back after impact, which will have an adverse effect on the safety of the test device. (3) The size and shape of the ice layer are different, and it is more difficult to fix irregular ice layers. (4) The position of the ice layer constraint is difficult to determine accurately, and the position difference with the launch device will affect the experimental results. Summary of the Invention

[0005] In view of this, in order to solve the problems of existing ice confinement systems being unable to realistically simulate the characteristics of ice moving with the water surface, having low adaptability to ice size, and being complex and costly, this invention proposes an ice confinement system for icebreaking and water entry / exit model tests of aircraft. This system is an ice confinement system with good simulation effect, high adaptability, and strong scalability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an ice-binding system for icebreaking and water entry / exit model tests of a vehicle, comprising a system lateral movement mechanism, two lateral linear guides with platforms, two first-order closed-chain transmission mechanisms, a system lateral movement support frame, two pontoons, an ice-binding system, a lateral movement mechanism for the restraint frame, a longitudinal movement mechanism for the restraint frame, and a restraint frame. The system lateral movement mechanism is located on the upper edge of the pool or on a lifting platform. Lateral linear guides with platforms are respectively provided on both sides of the system lateral movement mechanism. A first-order closed-chain transmission mechanism is installed at the bottom of the same side of the lateral linear guides with platforms. The system lateral movement support frame is installed on the system lateral movement mechanism. The system lateral movement mechanism drives the system lateral movement support frame to move laterally and provides vertical movement space for the system lateral movement support frame through connecting parts. Pontoons are respectively installed at the front and rear ends of the system lateral movement support frame. The system lateral movement support frame is equipped with an ice-binding system. The ice-limiting system includes a lateral movement mechanism for the limiting frame, a longitudinal movement mechanism for the limiting frame, and a limiting frame. The lateral movement mechanism for the limiting frame is mounted on the lateral movement support frame of the system and is connected to the longitudinal movement mechanism for the limiting frame. The lateral movement mechanism for the limiting frame drives the longitudinal movement mechanism for the limiting frame to move laterally. The longitudinal movement mechanism for the limiting frame is connected to the limiting frame and drives the limiting frame to move longitudinally. A fixing structure is installed at the bottom of the limiting frame.

[0007] Furthermore, the transverse linear guide with platform includes a linear slide rail, a slide rail platform, a frame connector, and a transmission chain fixing tenon. The slide rail platform is set on the linear slide rail, the frame connector is set on the slide rail platform, and a transmission chain fixing tenon is installed at the bottom of the linear slide rail. The transverse linear guide with platform is connected to the first closed chain transmission mechanism through the transmission chain fixing tenon.

[0008] Furthermore, the lateral movement mechanism of the limiting frame is equipped with a lateral linear slide rail with a platform and a second closed chain transmission mechanism, which are connected by a transmission chain fixing tenon.

[0009] Furthermore, the No. 1 closed-loop transmission mechanism and the No. 2 closed-loop transmission mechanism have the same structure, both including a drive wheel, an inducer wheel and a transmission chain. The drive wheel is connected to an external motor, the inducer wheel is located in the system's lateral movement mechanism or lateral linear guide rail with platform, and the transmission chain is connected to the drive wheel, the inducer wheel and the lateral linear guide rail with platform or lateral linear guide rail with platform.

[0010] Furthermore, the longitudinal movement mechanism of the limiting frame is provided with a longitudinal linear guide rail with a platform and a non-closed chain transmission mechanism, which are connected by a connector.

[0011] Furthermore, the non-closed chain transmission mechanism includes a rigid chain, a drive wheel, and a housing. The drive wheel is connected to an external motor and meshes with the rigid chain, which is coiled inside the housing.

[0012] Furthermore, the fixing structure consists of several folded fixing claws, which are used to fix the ice layer.

[0013] Furthermore, the folding fixing claw includes a limiting frame connector, a folding and rotating component, a claw body, and a bolt-adjustable telescopic baffle. The limiting frame connector is connected to the bottom of the limiting frame, the folding and rotating component is located in the middle of the claw body to enable it to fold, and the bolt-adjustable telescopic baffle is located near the bottom of the claw body.

[0014] A method for using a layered ice constraint system for icebreaking and water entry / exit model tests of a vehicle includes the following steps: Step 1: Use an external motor to move the system's lateral movement mechanism, the limiting frame's lateral movement mechanism, and the limiting frame's longitudinal movement mechanism to one side to load ice blocks; Step 2: Place the ice block on the protruding part at the bottom of the folding fixing claw, and use the bolted telescopic baffle to restrict the ice layer at the folding fixing claw; Step 3: After fixing, the ice layer is moved precisely to the target limiting position by using the external motor control system's lateral movement mechanism, the limiting frame's lateral movement mechanism, and the limiting frame's longitudinal movement mechanism. Compared with the prior art, the beneficial effects of the layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle described in this invention are: (1) The ice layer restraint system of the present invention includes a system lateral movement mechanism, a system lateral movement support frame, a float frame, and an ice layer limiting system. The system lateral movement mechanism drives the system lateral movement support frame to move laterally, and the floats within the float frame provide buoyancy, enabling the restrained ice layer to move with the water surface, thus realistically simulating the dynamic behavior of ice layers in a natural environment. Simultaneously, the ice layer limiting system achieves multi-directional movement of the limiting frame through the limiting frame lateral movement mechanism and the limiting frame longitudinal movement mechanism, adapting to ice layers of different sizes, and is reliably fixed by fixing claws. This system has advantages such as good simulation effect, high adaptability to ice layer sizes, strong scalability, simple structure, and low cost.

[0015] (2) The ice confinement system described in this invention utilizes floats to provide buoyancy for the entire system, reducing the structural strength required for the system. At the same time, it allows the ice layer to move freely with the water surface, improving the authenticity and reliability of the experiment. In addition, through the combination of closed-loop and non-closed-loop transmissions, precise lateral and longitudinal movement control is achieved, making the operation flexible and easy to adjust.

[0016] (3) The ice confinement system of the present invention provides vertical movement space through the connecting parts of the lateral movement support frame, allowing the system to adapt to water surface fluctuations, further enhancing the adaptability and stability of the system. The entire system is modularly designed, which facilitates installation and maintenance and is suitable for various water tank experimental environments. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of the structure of the layered ice constraint system provided by the present invention; Figure 2A perspective view of the layered ice constraint system provided by the present invention; Figure 3 A schematic diagram of the lateral drive system of the layered ice constraint system provided by the present invention; Figure 4 A schematic diagram of the rear structure of the lateral drive system of the layered ice constraint system provided by the present invention; Figure 5 A schematic diagram of the lateral movement support frame of the layered ice restraint system provided by the present invention; Figure 6 This is a schematic diagram of the structure of the limiting system of the layer ice restraint system provided by the present invention; Figure 7 A schematic diagram of the lateral movement mechanism of the limiting frame of the layered ice constraint system provided by the present invention; Figure 8 A perspective view of the longitudinal movement mechanism of the limiting frame of the layered ice constraint system provided by the present invention; Figure 9 Schematic diagram of the folding fixing claw of the layered ice restraint system provided by the present invention Figure 1 ; Figure 10 Schematic diagram of the folding fixing claw of the layered ice restraint system provided by the present invention Figure 2 ; Explanation of reference numerals in the attached figures: 1-System lateral movement mechanism, 2-lateral linear guide rail with platform, 3-first closed chain transmission mechanism, 4-system lateral movement support frame, 5-buoy frame, 6-buoy, 7-ice layer restraint system, 8-restraint frame lateral movement mechanism, 9-restraint frame longitudinal movement mechanism, 10-restraint frame, 11-lateral linear guide rail with platform, 12-second closed chain transmission mechanism, 13-longitudinal linear guide rail with platform, 14-non-closed chain transmission mechanism, 15-folding fixing claw. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the drawings, and not all of them. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the invention.

[0019] See Figure 1-10This embodiment describes an ice-binding system for icebreaking and water-entry model tests of a vehicle, comprising a system lateral movement mechanism 1, which is set on the upper edge of the water tank or a lifting platform. The system lateral movement mechanism 1 is provided with a lateral linear guide rail 2 with a platform and a closed chain transmission mechanism 3.

[0020] The present invention provides guidance and power for the lateral movement of the system by setting a lateral linear guide rail 2 with a lateral platform and a closed chain transmission mechanism 3 in the lateral movement mechanism 1.

[0021] The system's lateral moving support frame 4 is connected to the system's lateral moving mechanism 1, the float frame 6, and the ice layer limiting system 5. The system's lateral moving mechanism 1 drives the system's lateral moving support frame 4 to move laterally and provides vertical moving space for the system's lateral moving support frame 4 through the connecting parts.

[0022] A connecting component 29 is provided between the system's lateral movement mechanism 1 and the system's lateral movement support frame 4. The connecting component 29 allows the system's lateral movement support frame 4 to have vertical movement space to adapt to water surface fluctuations.

[0023] The pontoon frame 5 is mounted on the system's transverse moving support frame 4, and the pontoon frame 5 is provided with fixing holes and cover plates for installing and sealing the pontoon 6.

[0024] The float frame 6 is connected to the system's lateral movement support frame 4, and has float fixing holes and a cover plate inside. The float 6 provides buoyancy for the entire restraint system. This not only reduces the strength requirements of the support structure, but also allows the fixed ice layer to rise and fall freely with the water surface, simulating the movement of floating ice in a real marine environment, and greatly improving the realism of the experiment.

[0025] The ice-limiting system 7 is mounted on the system's lateral movement support frame 4. The ice-limiting system 7 includes a lateral movement mechanism 8, a longitudinal movement mechanism 9, and a limiting frame 10. The lateral movement mechanism 8 is mounted on the system's lateral movement support frame 4 and connected to the longitudinal movement mechanism 9, which drives the longitudinal movement mechanism 9 to move laterally. The longitudinal movement mechanism 9 is connected to the limiting frame 10, which drives the limiting frame 10 to move longitudinally.

[0026] like Figures 3-4 As shown, the transverse linear guide rail 2 with platform includes a linear slide rail 16, a slide rail platform 17, a frame connector 18, and a transmission chain fixing tenon 19. The slide rail platform 17 is mounted on the linear slide rail 16, and the frame connector 18 is mounted on the slide rail platform 17, forming the guide rail as a whole. It is connected to the closed chain drive 3 through the transmission chain fixing tenon 19.

[0027] The first closed-loop chain transmission mechanism 3 and the second closed-loop chain transmission mechanism 12 are identical, both including a drive wheel 20, an inducer wheel 21, and a transmission chain 22. The drive wheel 20 is connected to an external motor, and the inducer wheel 21 is located within the system's lateral movement mechanism 2 or the lateral linear guide rail 11 with a platform. The transmission chain 22 is connected to the drive wheel 20, the inducer wheel 21, and the lateral linear guide rail 2 or the lateral linear guide rail 11 with a platform, converting the rotational motion of the motor into the linear motion of the platform.

[0028] The lateral movement mechanism 8 of the limiting frame is provided with a lateral linear slide rail 11 with a platform and a second closed chain transmission mechanism 12. The lateral linear slide rail 11 with a platform and the second closed chain transmission mechanism 12 are connected by a transmission chain fixing tenon 19, which is used to drive the longitudinal movement mechanism 9 of the limiting frame to move laterally.

[0029] The longitudinal moving mechanism 9 of the limiting frame is provided with a longitudinal linear guide rail 13 with a platform and a non-closed chain transmission mechanism 14. The longitudinal linear guide rail 13 with a platform and the non-closed chain transmission mechanism 14 are connected by a connector 30 and are used to drive the limiting frame 10 to make longitudinal movements.

[0030] like Figure 8 As shown, the non-closed chain transmission mechanism 14 includes a rigid chain 23, a drive wheel 24, and a housing 25. The drive wheel 24 is connected to an external motor and meshes with the rigid chain 23, which is housed within the housing. The housing accommodates the rigid chain 23 and the drive wheel 24. Rotation of the drive wheel 24 drives the rigid chain 23 to extend or retract into the housing 25, thereby achieving longitudinal drive of the longitudinal movement mechanism 9 of the limiting frame.

[0031] The limiting frame 10 is connected to the longitudinal moving mechanism 9 of the limiting frame, and a folding fixing claw 15 can be installed at the reserved hole. The folding fixing claw 15 is used to fix the ice layer.

[0032] like Figure 9-10 As shown, the folding fixing claw 15 includes a limiting frame connector 26, a folding and rotating component 27, a claw body 28, and a bolt-adjustable telescopic baffle 31. The limiting frame connector 26 is connected to the bottom of the limiting frame 10. The folding and rotating component 27 is located in the middle of the claw body 28, enabling it to fold. The bolt-adjustable telescopic baffle 31 is located near the bottom of the claw body 28, allowing it to fix ice layers of different shapes and sizes.

[0033] The ice-binding system 7 achieves precise positional adjustment of the confinement frame 10 in two degrees of freedom within the horizontal plane through its lateral and longitudinal movement mechanisms. The lateral movement mechanism 8 is driven by its internal second closed-loop transmission mechanism 12, which in turn drives the entire longitudinal movement mechanism 9 and the confinement frame 10 to move laterally. The longitudinal movement mechanism 9 is driven by its internal non-closed-loop transmission mechanism 14, which in turn drives the confinement frame 10 to move longitudinally. By coordinating the movement in these two directions, the confinement frame 10 and its folding fixing claws 15 can be precisely positioned to the target ice layer area, and the ice layer can be reliably fixed by the folding fixing claws 15. This design allows the system to adapt to the experimental needs of ice layers of different sizes and locations, offering strong scalability.

[0034] This ice-constraining system utilizes floats 6 to provide the main buoyancy, resulting in a small structural load and a simplified overall structure. It offers advantages such as low cost and high reliability. Furthermore, the ice layer can move with the water surface, providing a good simulation effect, and the mechanism is flexible in adjustment, adapting well to different ice sizes.

[0035] The limiting frame 10 is a rigid frame structure. The folding fixing claws 15 are distributed at the bottom of the limiting frame 10. The clamping force and opening angle of the folding fixing claws 15 are adjustable. Different shaped sponge blocks can also be added to them to adapt to ice layers of different thicknesses and intensities.

[0036] The operation process of the layer ice restraint system used for the icebreaking and water entry / exit model test of the vehicle is as follows: An external motor moves the system's lateral movement mechanism 1, the lateral movement mechanism 8 of the limiting frame, and the longitudinal movement mechanism 9 of the limiting frame to one side to load ice. The ice is placed on the protruding part at the bottom of the folding fixing claw 15. The ice layer is restrained at the folding fixing claw 15 by adjusting the telescopic baffle 31 with bolts. A sponge can be added between the baffle and the ice layer to ensure non-rigid contact and prolong the melting time. After fixing, the external motor controls the movement of the system's lateral movement mechanism 1, the lateral movement mechanism 8 of the limiting frame, and the longitudinal movement mechanism 9 of the limiting frame to precisely reach the target restraint position.

[0037] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating orientation and positional relationships are based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] The embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. An ice-binding system for icebreaking and water-entry model tests of a vehicle, characterized in that: The system includes a system lateral movement mechanism (1), two lateral linear guides with platforms (2), two first closed chain transmission mechanisms (3), a system lateral movement support frame (4), two floats (6), an ice layer limiting system (7), a limiting frame lateral movement mechanism (8), a limiting frame longitudinal movement mechanism (9), and a limiting frame (10). The system lateral movement mechanism (1) is located on the upper edge of the pool or on a lifting platform. The system lateral movement mechanism (1) is provided with lateral linear guides with platforms (2) on both sides. The first closed chain transmission mechanism (3) is installed at the bottom of the same side of the lateral linear guides with platforms (2). The system lateral movement support frame (4) is installed on the system lateral movement mechanism (1). The system lateral movement mechanism (1) drives the system lateral movement support frame (4) to move laterally and provides vertical movement space for the system lateral movement support frame (4) through connecting parts. The system lateral movement support frame (4) is provided with floats (6) at both the front and rear ends. The system lateral movement support frame (4) is provided with an ice layer limiting system (7). The ice layer restriction system (7) includes a restriction frame lateral movement mechanism (8), a restriction frame longitudinal movement mechanism (9), and a restriction frame (10). The restriction frame lateral movement mechanism (8) is mounted on the system lateral movement support frame (4) and connected to the restriction frame longitudinal movement mechanism (9). The restriction frame lateral movement mechanism (8) drives the restriction frame longitudinal movement mechanism (9) to move laterally. The restriction frame longitudinal movement mechanism (9) is connected to the restriction frame (10). The restriction frame longitudinal movement mechanism (9) drives the restriction frame (10) to move longitudinally. A fixed structure is installed at the bottom of the restriction frame (10).

2. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: A connecting component (29) is provided between the system lateral movement mechanism (1) and the system lateral movement support frame (4), the connecting component (29) allowing the system lateral movement support frame (4) to have vertical movement space.

3. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: The transverse linear guide rail (2) with platform includes a linear slide rail (16), a slide rail platform (17), a frame connector (18), and a transmission chain fixing tenon (19). The slide rail platform (17) is set on the linear slide rail (16), the frame connector (18) is set on the slide rail platform (17), and the transmission chain fixing tenon (19) is installed at the bottom of the linear slide rail (16). The transverse linear guide rail (2) with platform is connected to the first closed chain transmission mechanism (3) through the transmission chain fixing tenon (19).

4. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: The limiting frame lateral movement mechanism (8) is provided with a lateral linear slide rail (11) with a platform and a second closed chain transmission mechanism (12). The lateral linear slide rail (11) with a platform and the second closed chain transmission mechanism (12) are connected by a transmission chain fixing tenon (19).

5. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 4, characterized in that: The first closed-loop transmission mechanism (3) and the second closed-loop transmission mechanism (12) are the same, both including a drive wheel (20), an inducer wheel (21) and a transmission chain (22). The drive wheel (20) is connected to an external motor. The inducer wheel (21) is located in the system's transverse moving mechanism (1) or transverse linear guide rail (11) with a platform. The transmission chain (22) is connected to the drive wheel (20), the inducer wheel (21) and the transverse linear guide rail (2) with a platform or the transverse linear guide rail (11) with a platform.

6. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: The longitudinal moving mechanism (9) of the limiting frame is provided with a longitudinal linear guide rail (13) with a platform and a non-closed chain transmission mechanism (14), which are connected by a connector (30).

7. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 6, characterized in that: The non-closed chain transmission mechanism (14) includes a rigid chain (23), a drive wheel (24) and a housing (25). The drive wheel (24) is connected to an external motor and meshes with the rigid chain (23). The rigid chain (23) is coiled inside the housing (25).

8. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: The fixing structure consists of several folding fixing claws (15), which are used to fix the ice layer.

9. The layer ice constraint system for icebreaking and water entry / exit model tests of a vehicle according to claim 1, characterized in that: The folding fixing claw (15) includes a limiting frame connector (26), a folding and rotating component (27), a claw body (28), and a bolt-adjustable telescopic baffle (31). The limiting frame connector (26) is connected to the bottom of the limiting frame (10). The folding and rotating component (27) is located in the middle of the claw body (28) to enable it to fold. The bolt-adjustable telescopic baffle (31) is located near the bottom of the claw body (28).

10. A method of using an ice-binding system for icebreaking and water-entry model tests of a vehicle as described in any one of claims 1-9, characterized in that: Specifically, the following steps are included: Step 1: Use an external motor to move the system's lateral movement mechanism (1), the limiting frame's lateral movement mechanism (8), and the limiting frame's longitudinal movement mechanism (9) to one side to load ice blocks; Step 2: Place the ice block on the protruding part at the bottom of the folding fixing claw (15), and use the bolted telescopic baffle (31) to restrict the ice layer at the folding fixing claw (15); Step 3: After fixing, the ice layer is moved precisely to the target limiting position by the external motor control system's lateral movement mechanism (1), the limiting frame lateral movement mechanism (8), and the limiting frame longitudinal movement mechanism (9).

Images