Ammunition nursing system

Abstract

The invention belongs to the technical field of civil explosive materials, and relates to an ammunition nursing system which comprises a furnace body, a nursing device and a sequential cooling system, the furnace body and the nursing device are arranged in an up-and-down communicating mode, a frame body is arranged in the nursing device and connected with the nursing device in a matched mode through a screw rod, and a lifting motor used for driving the frame body to ascend and descend is arranged at the upper end of the nursing device. Hot probes are arranged on the frame body and are communicated in series through pipelines, hot cups are correspondingly arranged at the lower ends of the hot probes and are communicated in series through pipelines, the inner walls of the hot cups are of hollow structures to form hot water circulating channels, the bottoms of the hot cups are open, and the hot probes can penetrate through the bottoms of the hot cups to extend downwards into the bomb body; and the sequential cooling system is used for performing gradient cooling on the ammunition subjected to heat preservation nursing according to a preset temperature-time curve. The ammunition nursing system aims at solving the problems that in existing ammunition nursing, heat preservation monitoring and gradient cooling are lacked, the monitoring accuracy of a temperature field and an ammunition charging state in an ammunition body is insufficient, and temperature fluctuates in the nursing process.

Description

Technical Field

[0001] This invention belongs to the field of civilian explosives technology and relates to a munitions care system. Background Technology

[0002] In the field of military equipment, ammunition, as a core combat material, directly impacts combat effectiveness due to its storage reliability and operational safety. Ammunition charges often utilize cast explosives. During casting and subsequent storage and transportation, scientific care processes are necessary to ensure the structural stability of the charge and prevent quality defects such as porosity, shrinkage cavities, and cracks caused by temperature changes and stress concentration, thereby reducing safety risks during ammunition use. Thermal insulation optimizes the solidification process of the charge, gradient cooling alleviates internal stress caused by thermal expansion and contraction, and precise monitoring of the internal temperature field of the projectile and the state of the charge is a key prerequisite for personalized care. These three elements work together to form the core technical system of ammunition care.

[0003] However, existing ammunition handling processes still face numerous technical bottlenecks. On the one hand, there is a lack of an integrated and coordinated mechanism for thermal monitoring and gradient cooling. Traditional handling often treats thermal insulation, monitoring, and cooling as independent steps, which can easily lead to excessive temperature fluctuations during the switching between steps, resulting in deformation of the propellant structure. On the other hand, the accuracy of monitoring the internal temperature field and propellant state of the projectile is insufficient. Existing monitoring methods are mostly external temperature measurement or coarse internal detection, which are difficult to capture temperature differences in different areas inside the projectile and the progress of propellant solidification, thus failing to provide accurate basis for adjusting handling parameters. In addition, the risk of projectile deformation is high during handling, especially for small, thin-walled projectiles or precision fuse components. During clamping and temperature changes, they are prone to irreversible deformation due to uneven stress or thermal stress concentration, affecting ammunition performance.

[0004] A search revealed an invention patent, CN118209007A, for a tiered temperature-controlled care device for large aerial bombs. This device utilizes a positioning mechanism and a circulation system, employing a multi-section independent compartment design to achieve sequential solidification care of the bomb. Its core principle involves using a jacket that fits snugly against the bomb, and employing independently controlled heat sources to achieve tiered temperature regulation. This effectively addresses quality defects such as porosity and shrinkage cavities in the propellant charge, and boasts advantages such as a compact structure and high level of automation. However, this technology still has significant shortcomings: it only focuses on external tiered temperature control, without directly monitoring the internal temperature field and propellant charge status, making it impossible to accurately obtain the internal care effect. Furthermore, its clamping and temperature control structures have limited adaptability, making it difficult to meet the care needs of small, thin-walled bombs, and it lacks an integrated collaborative process for heat preservation, monitoring, and cooling, resulting in poor temperature fluctuation control. In addition to these methods, traditional nursing techniques also include manual monitoring combined with segmented cooling and single-medium circulating temperature control. These methods either suffer from low automation and poor nursing efficiency, or lack of targeted monitoring leading to insufficient matching of nursing parameters, and none of them can fully solve the pain points of existing technologies. Therefore, there is an urgent need for an integrated ammunition care system that integrates thermal insulation, precise internal monitoring, and gradient cooling functions to achieve precision, collaboration, and efficiency in the nursing process. Summary of the Invention

[0005] This invention provides a ammunition care system that solves the technical problems in existing ammunition care, such as the lack of an integrated and coordinated mechanism for heat preservation monitoring and gradient cooling, insufficient accuracy in monitoring the internal temperature field and propellant status of the projectile, and high risk of temperature fluctuations and projectile deformation during the care process.

[0006] To solve the above problems, the technical solution adopted by the invention is as follows: A munition care system, characterized in that it includes a furnace body, a care device, and a sequential cooling system. The furnace body and the care device are vertically connected. The care device has a frame inside, which is connected to the care device via a screw. The upper end of the care device is equipped with a lifting motor for driving the frame to rise and fall. The frame is equipped with at least two thermal probes, which are connected in series via pipes. Each thermal probe has a corresponding hot cup at its lower end, and the hot cups are connected in series via pipes. The inner wall of the hot cup is hollow to form a hot water circulation channel. The bottom of the hot cup is open, and the thermal probe can extend downward through the bottom of the hot cup to the inside of the munition body. The furnace body is used for heat preservation care of the propellant-loaded munition body, and the sequential cooling system is used for gradient cooling of the munition after heat preservation care according to a preset temperature-time curve.

[0007] The principle and advantages of this scheme are as follows: This solution integrates the furnace body, the care device, and the sequential cooling system to construct an integrated collaborative architecture of thermal insulation care, internal monitoring, and gradient cooling, achieving precise control over the entire ammunition care process. The furnace body and care device are vertically connected, providing a closed and stable thermal environment for the projectile, ensuring the temperature baseline for the propellant solidification process. The frame within the care device, via a screw and lifting motor, drives the precise lifting and lowering of the thermal probe and heating cup. The thermal probe is connected in series via pipes, and the hollow structure of the heating cup's inner wall forms a hot water circulation channel. These two components are correspondingly positioned, and the thermal probe extends through the bottom of the heating cup into the projectile's interior, directly capturing temperature field changes in different areas of the projectile and providing real-time feedback on the propellant solidification status. The sequential cooling system, based on the precise data collected by the thermal probe, performs gradient cooling on the insulated ammunition according to a preset temperature-time curve, achieving refined control over ammunition care.

[0008] Compared with existing technologies, the integrated collaborative mechanism completely solves the temperature fluctuation problem caused by the switching of existing technology links. The furnace body insulation, internal monitoring and gradient cooling are seamlessly connected, avoiding temperature loss or sudden changes when the projectile is transferred between different equipment, reducing the risk of charge cracks and structural deformation caused by temperature fluctuations. Existing technologies can only achieve external tiered temperature control and cannot avoid the hidden dangers of temperature fluctuations during link switching. Secondly, the design of the thermal probe directly penetrating the projectile's interior, combined with a multi-probe series-connected layout, enables direct and accurate monitoring of the internal temperature field and propellant loading status. Compared to existing technologies that rely on external temperature measurement or coarse-grained detection, this approach more accurately captures the propellant solidification progress and local temperature differences, providing precise data for adjusting insulation parameters and optimizing gradient cooling curves. This effectively avoids the problem of mismatched nursing parameters caused by inaccurate monitoring. Furthermore, this solution achieves internal monitoring without requiring destructive modifications to the projectile and is adaptable to the nursing needs of projectiles of different specifications. It solves the problem of poor adaptability of existing technologies for small, thin-walled projectiles. Simultaneously, the integrated architecture simplifies the nursing process, improves automation, and enhances production efficiency while ensuring nursing quality. This comprehensive advantage of precise monitoring, collaborative control, and efficient adaptation is unattainable by existing single-function nursing equipment.

[0009] Furthermore, the temperature adjustment range of the thermal probe and the heating cup is 100℃~120℃, with a temperature control accuracy of ±2℃. The maximum travel distance of the thermal probe is 1300mm, and its operating speed can be steplessly adjusted within the range of 1~30mm / s. Setting the temperature adjustment range of the thermal probe and the heating cup to 100℃~120℃ with a control accuracy of ±2℃ can accurately match the temperature environment required for the solidification of ammunition charges. This provides a stable background temperature for the thermal probe to avoid environmental temperature drift interference and ensures the accuracy of internal temperature field monitoring data. It can assist in the uniform solidification of the charge through precise temperature control, reducing defects such as shrinkage cavities and cracks caused by local temperature deviations; the maximum travel distance of the thermal probe of 1300mm can be adapted to projectiles of different lengths, and the stepless adjustable running speed of 1-30mm / s can be flexibly adjusted according to the projectile type. For thick-walled projectiles, it can descend slowly and steadily to avoid impacting the charge, and for thin-walled projectiles, it can quickly position itself to reduce heat loss. This not only expands the system's adaptability range, but also ensures the safety and efficiency of the detection process, further improving the accuracy and versatility of ammunition care.

[0010] Furthermore, the sequential cooling system includes a hot water circulation module, a cold water circulation module, and an independently temperature-controlled nursing water tank. The water temperature in the nursing water tank has a range of 30℃ to 60℃ and a temperature control accuracy of ±2℃. The sequential cooling system employs a hot water circulation module, a cold water circulation module, and an independently temperature-controlled nursing water tank, with a water temperature range set to 30℃ to 60℃ and a control accuracy of ±2℃. This precisely matches the gradient cooling requirements after the ammunition charge solidifies. Through the coordinated operation of the hot water circulation module and the cold water circulation module, combined with the independent temperature control design, it provides cooling for different types of ammunition. The ammunition with the same solidification progress is provided with a personalized cooling curve to avoid thermal stress caused by excessively fast cooling rate or instability of the charge structure caused by excessively slow cooling rate. With high-precision temperature control of ±2℃, it can ensure that the water temperature in each care tank is stable and consistent, avoiding the impact of temperature fluctuations on ammunition performance during the cooling process. At the same time, the adjustment range of 30℃~60℃ can cover the temperature range of most ammunition gradient cooling. With the independent temperature control function, multiple ammunition in different states can be cared for in parallel, which not only improves the efficiency of care, but also further ensures the reliability of ammunition storage and the safety of use after care.

[0011] Furthermore, the nursing device also includes a blocking device located below the frame and electrically connected to the lifting motor. The blocking device has a built-in distance sensor. When the thermal probe reaches a preset distance, the blocking device triggers the lifting motor to stop. This preset distance can be adaptively adjusted according to the projectile's specifications. When the thermal probe reaches the preset distance, the blocking device can quickly trigger the lifting motor to stop, effectively preventing the thermal probe from excessively descending and impacting the bottom of the projectile, damaging the propellant, or destroying the internal structure of the projectile due to operational errors or mechanical failures. This significantly improves the safety of the detection process. Moreover, the adaptive adjustment function of the preset distance can flexibly adapt to projectiles of different diameters and lengths. The detection depth of the thermal probe can be precisely controlled without replacing special accessories, eliminating the cumbersome process of frequent equipment adjustments, improving nursing efficiency, and ensuring that the thermal probe is always in the optimal detection position. This guarantees the accuracy of the internal temperature field and propellant status monitoring data, further enhancing the system's versatility and ease of operation.

[0012] Furthermore, the hollow inner wall of the hot water cup is connected to the hot water circulation module of the sequential cooling system through a flow guide pipe, forming a closed loop. The flow guide pipe is equipped with a flow regulating valve and a temperature sensor. The temperature sensor can monitor the temperature change of the circulating hot water in real time and provide timely feedback on the heat preservation status inside the hot water cup. Together with the flow regulating valve, it can precisely adjust the hot water circulation rate to ensure that the hot water cup always maintains a stable temperature environment that matches the ammunition care requirements. This provides a constant temperature background for the thermal probe to detect the internal temperature field of the projectile, avoiding monitoring errors caused by environmental temperature drift. It also reduces the temperature fluctuation of the hot water cup itself through the continuous supply of circulating hot water, ensuring the uniformity of heat preservation on the outside of the projectile. At the same time, the closed loop can realize the reuse of hot water, reducing energy consumption. The dual regulation mechanism of flow and temperature can flexibly adapt to the heat preservation requirements of different ammunition, further improving the accuracy and coordination of temperature control of the entire care system, and laying a stable foundation for the subsequent gradient cooling process.

[0013] Furthermore, the probe's detection end is equipped with a wear-resistant and high-temperature-resistant coating made of zirconia ceramic. The probe incorporates a data transmission module that wirelessly transmits real-time collected internal temperature data of the projectile to the control system. The data transmission delay is ≤50ms. The zirconia ceramic coating possesses excellent wear resistance and high-temperature resistance, effectively resisting the high-temperature environment inside the projectile and frictional damage during the probe's descent. This prevents the probe's sensitive elements from failing due to environmental corrosion or physical contact, extending their service life and ensuring detection reliability. The low-latency wireless transmission achieved by the built-in data transmission module allows for rapid feedback of real-time collected internal temperature data to the control system. Compared to traditional wired transmission methods, this eliminates complex wiring, avoids interference with the temperature field, and enables the control system to obtain accurate temperature data promptly. This allows for rapid adjustment of furnace insulation strength, hot cup circulation parameters, and cooling curves, achieving dynamic closed-loop control of the maintenance process. This effectively avoids untimely parameter adjustments caused by data transmission delays, further improving the accuracy and response efficiency of ammunition maintenance.

[0014] Furthermore, the furnace body is equipped with a conveying mechanism, on which is mounted an individually temperature-controlled nursing water tank. Inside the nursing water tank is a placement slot for projectiles, the inner wall of which is hollow. A limiting clamp is located at the upper end of the placement slot, and this clamp engages with the placement slot. A cooling circulation system is located on one side of the nursing water tank, and this system is connected to the hollow structure of the tank's side wall. The individually temperature-controlled nursing water tank allows for precise adjustment of the insulation temperature for each projectile, adapting to the personalized needs of different propellant loading states. The hollow structure of the placement slot and the cooling circulation system... The integrated system enables uniform temperature control of the projectile's bottom and sidewalls through a circulating medium, avoiding defects in the propellant charge caused by localized temperature differences. The limiting clamps securely fix the projectile, preventing displacement during transport or temperature changes and ensuring accurate positioning of the thermal probe. The transport mechanism ensures smooth transfer of the projectile during heat preservation, monitoring, and cooling without additional manual intervention. This reduces temperature loss and collision damage during projectile transport and improves nursing efficiency and quality through the integrated design of independent temperature control, precise positioning, and smooth transport. It also enhances the system's adaptability to projectiles of various specifications and states.

[0015] Furthermore, the frame is equipped with a horizontal adjustment mechanism, which includes a fine-tuning screw and a level. The fine-tuning screw can be used to adjust the levelness of the thermal probe and the thermal cup, ensuring that the thermal probe descends vertically along the projectile's axis with a verticality deviation of ≤0.05mm / m. Verticality control can prevent the thermal probe from deviating from the axis during descent, preventing scratching of the projectile's inner wall or contact with the propellant that could cause structural damage. This is especially beneficial for thin-walled projectiles or precision fuse components, minimizing the risk of invasive detection. Vertical descent allows the thermal probe's detection end to accurately reach the preset monitoring position, avoiding temperature data acquisition deviations caused by tilting. This ensures the accuracy of temperature field monitoring in different areas inside the projectile, providing a reliable basis for the control system to adjust insulation and cooling parameters. At the same time, it eliminates the need for frequent equipment calibration, simplifying the operation process and further improving the operational stability and reliability of the detection data of the entire nursing system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the invention. Figure 2 A three-dimensional structural diagram of the invention; Figure 3 for Figure 2 A magnified view of part I; Figure 4 This is a schematic diagram of the invention. Figure 5 This is a diagram showing the hot water flow path of the probe in the invention. Figure 6 This is a diagram showing the flow of hot water in the hot cup during the invention. Detailed Implementation The reference numerals in the accompanying drawings include: furnace body 1, nursing device 2, lifting motor 3, conveying mechanism 4, nursing water tank 5, frame 6, heat probe 7, hot cup 8, circulating water connector 9, circulating pipe 10, screw 11, guide pipe 12, hot cup guide pipe 13, self-contained box 14, heat exchanger 15, circulating fan 16, blocking device 17, flow regulating valve 18, temperature sensor 19, projectile 20, placement slot 21, limit clamp 22, horizontal adjustment structure 23, fine adjustment screw 24, level 25.

[0017] Example 1 As attached Figure 1-6 As shown, a munition care system includes a furnace body 1, a care device 2, and a sequential cooling system. The furnace body 1 and the care device 2 are connected vertically to form a closed and stable care space, ensuring temperature stability during the munition care process.

[0018] The nursing device 2 contains a frame 6, which is connected to the nursing device 2 via a screw 11. A lifting motor 3 is installed at the upper end of the nursing device 2, which drives the frame 6 to move up and down precisely in the vertical direction. Four thermal probes 7 are installed on the frame 6, which are connected in series via pipes. Each thermal probe 7 has a corresponding hot cup 8 at its lower end, which is also connected in series via pipes. The inner wall of the hot cup 8 is hollow, forming a hot water circulation channel. The bottom of the hot cup 8 is open, allowing the thermal probe 7 to pass through the bottom of the hot cup 8 and extend downwards into the projectile 20, enabling direct detection of the internal temperature field of the projectile 20.

[0019] The frame 6 is also equipped with a horizontal adjustment mechanism 23, which includes a fine-tuning screw 24 and a level 25. The fine-tuning screw 24 can precisely adjust the level of the thermal probe 7 and the thermal cup 8 to ensure that the thermal probe 7 extends vertically downward along the axis of the projectile 20, with a verticality deviation ≤0.05mm / m. A blocking device 17 is installed inside the nursing device 2 below the frame 6. The blocking device 17 is electrically connected to the lifting motor 3 and has a built-in distance sensor. When the thermal probe 7 extends to a preset distance, the blocking device 17 triggers the lifting motor 3 to stop. The preset distance can be adaptively adjusted according to the specifications of the projectile 20 to prevent the thermal probe 7 from extending too far and damaging the projectile 20 or the explosive charge.

[0020] The probe 7 has a wear-resistant and high-temperature-resistant coating made of zirconia ceramic at its detection end. It has a built-in data transmission module that can wirelessly transmit real-time internal temperature data of the projectile 20 to the control system with a delay of ≤50ms. The temperature adjustment range of the probe 7 and the heating cup 8 is 100℃~120℃, with a temperature control accuracy of ±2℃. The maximum travel distance of the probe 7 is 1300mm, and its operating speed can be steplessly adjusted within the range of 1~30mm / s, adapting to the detection needs of projectiles 20 of different specifications.

[0021] The sequential cooling system includes a hot water circulation module, a cold water circulation module, and an independently temperature-controlled nursing water tank 5. The water temperature in the nursing water tank 5 has a range of 30℃ to 60℃, and the water temperature control accuracy is ±2℃. The hollow inner wall of the hot cup 8 is connected to the hot water circulation module of the sequential cooling system through a guide pipe 12, forming a closed loop. A flow regulating valve 18 and a temperature sensor 19 are installed on the guide pipe 12 to monitor and adjust the temperature and flow rate of the circulating hot water in real time.

[0022] The furnace body 1 is equipped with a conveying mechanism 4, on which multiple individually temperature-controlled nursing water tanks 5 are mounted. Each nursing water tank 5 has a placement slot 21 for the projectile 20. The inner wall of the placement slot 21 is hollow, and a limiting clamp 22 is installed at the upper end. The limiting clamp 22 cooperates with the placement slot 21 to securely fix the projectile 20. A cooling circulation system is connected to one side of the nursing water tank 5, and the cooling circulation system is connected to the hollow structure of the side wall of the nursing water tank 5 to achieve uniform cooling of the projectile 20 through a circulating medium.

[0023] Example 2 First, based on the specifications of the projectile 20 to be cared for, the control system presets the downward probe distance of the thermal probe 7, the insulation temperature of the furnace body 1, the circulating temperature of the hot cup 8, and the temperature-time curve of the sequential cooling system. Using the level 27 of the leveling mechanism 25, the level of the frame 6 is adjusted by rotating the fine-tuning screw 26 to ensure that the thermal probe 7 and the hot cup 8 are horizontal, thus guaranteeing the verticality of the downward probe.

[0024] Place the projectile 20 to be cared for stably in the placement slot 21 of the care water tank 5 of the conveying mechanism 4 of the furnace body 1, and clamp and fix the projectile 20 with the limiting clamp 22 to prevent displacement during the care process. Start the conveying mechanism 4 to transfer the projectile 20 to the bottom of the care device 2, so that the axis of the projectile 20 coincides with the axis of the heat probe 7.

[0025] The heat preservation function of furnace body 1 is activated to keep projectile 20 warm at the preset temperature, thus optimizing the solidification process of the propellant. At the same time, the hot water circulation system of hot cup 8 is activated. The temperature sensor 19 on the guide pipe 12 monitors the circulating water temperature, and the flow rate is adjusted by the flow regulating valve 18 to keep the temperature of hot cup 8 stable within the range of 100℃~120℃, with a control accuracy of ±2℃.

[0026] The lifting motor 3 is started, driving the frame 6 to lower the thermal probe 7 and the heating cup 8 synchronously. The thermal probe 7 passes through the bottom of the heating cup 8 and probes into the projectile 20. The operating speed of the thermal probe 7 is adjusted to a suitable level according to the length of the projectile 20. For thick-walled projectiles 20, a low-speed, stable descent is used; for thin-walled projectiles 20, a rapid, precise descent is used. When the thermal probe 7 reaches the preset distance, the distance sensor of the blocking device 17 triggers a signal, the lifting motor 3 stops, and the thermal probe 7 stops descent and remains at the detection position.

[0027] The thermal probe 7 collects temperature data from different areas inside the projectile 20 in real time and transmits it wirelessly to the control system via a built-in data transmission module, with a data transmission delay of ≤50ms. Based on the real-time temperature data, the control system dynamically adjusts the insulation intensity of the furnace body 1 and the circulation parameters of the heating cup 8 to ensure a uniform and stable temperature field inside the projectile 20.

[0028] After the projectile 20 completes its thermal insulation treatment, the control system activates the sequential cooling system, performing gradient cooling according to a preset temperature-time curve. Initially, hot water is introduced into the treatment water tank 5 via the hot water circulation module 23 to maintain the water temperature at approximately 60°C. Subsequently, the system gradually switches to the cold water circulation module 24, slowly lowering the water temperature in the treatment water tank 5 until it stabilizes at approximately 30°C. Throughout the cooling process, the water temperature control accuracy remains within ±2°C. The hollow structure of the sidewall of the treatment water tank 5 is connected to the cooling circulation system, ensuring uniform cooling of the projectile 20 and alleviating internal stress caused by thermal expansion and contraction.

[0029] During the cooling process, the thermal probe 7 continuously monitors the internal temperature changes of the projectile 20. The control system adjusts the cooling rate in real time based on the temperature feedback to avoid defects in the propellant charge caused by excessively fast or slow cooling. Once the temperature of the projectile 20 drops to the preset value and stabilizes, the cooling circulation system is shut down, and the lifting motor 3 is activated to drive the thermal probe 7 and the heating cup 8 to rise and reset.

[0030] The conveyor mechanism 4 is activated to transfer the treated projectile 20 out of the furnace body 1. The limiting clamp 22 is released, and the projectile 20 is removed, completing the entire treatment process. If multiple projectiles 20 in different states need to be treated simultaneously, the independent temperature control function of each treatment water tank 5 can be used to set the corresponding heat preservation and cooling parameters to achieve parallel treatment.

[0031] The above are merely embodiments of the present invention. Commonly known structures and characteristics of the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the description of specific embodiments in the specification can be used to interpret the content of the claims.

Claims

1. A ammunition care system, characterized in that, The device includes a furnace body, a care unit, and a sequential cooling system. The furnace body and the care unit are vertically connected. The care unit contains a frame, which is connected to the care unit via screws. The upper end of the care unit is equipped with a lifting motor for driving the frame to rise and fall. The frame has at least two thermal probes connected in series via pipes. Each thermal probe has a corresponding hot cup at its lower end, and the hot cups are connected in series via pipes. The inner wall of the hot cup is hollow to form a hot water circulation channel. The bottom of the hot cup is open, allowing the thermal probes to extend downwards through the bottom of the hot cup into the projectile body. The furnace body is used for heat preservation and care of the propellant-loaded projectile body, and the sequential cooling system is used for gradient cooling of the completed heat preservation projectile according to a preset temperature-time curve.

2. The ammunition care system according to claim 1, characterized in that, The temperature adjustment range of the thermal probe and the hot cup is 100℃~120℃, the temperature control accuracy is ±2℃, the maximum stroke of the thermal probe is 1300mm, and the running speed can be steplessly adjusted within the range of 1~30mm / s.

3. The ammunition care system according to claim 1, characterized in that, The sequential cooling system includes a hot water circulation module, a cold water circulation module, and an independently temperature-controlled nursing water tank. The water temperature of the nursing water tank has a range of 30℃ to 60℃ and a water temperature control accuracy of ±2℃.

4. The ammunition care system according to claim 1, characterized in that, The nursing device also includes a blocking device, which is located below the frame and electrically connected to the lifting motor. The blocking device has a built-in distance sensor. When the thermal probe reaches a preset distance, the blocking device triggers the lifting motor to stop. The preset distance can be adaptively adjusted according to the projectile specifications.

5. The ammunition care system according to claim 1, characterized in that, The hollow inner wall of the hot cup is connected to the hot water circulation module of the sequential cooling system through a flow guide pipe, forming a closed loop. The flow guide pipe is equipped with a flow regulating valve and a temperature sensor.

6. The ammunition care system according to claim 1, characterized in that, The probe end of the thermal probe is equipped with a wear-resistant and high-temperature resistant coating made of zirconia ceramic. The thermal probe has a built-in data transmission module that can wirelessly transmit the real-time collected internal temperature data of the projectile to the control system with a data transmission delay of ≤50ms.

7. The ammunition care system according to claim 1, characterized in that, The furnace body is equipped with a conveying mechanism, on which a nursing water tank with individually temperature-controlled function is installed. The nursing water tank is equipped with a placement slot for preventing projectiles from falling inside. The inner wall of the placement slot is hollow. A limiting clamp is installed at the upper end of the placement slot, and the limiting clamp is connected to the placement slot. A cooling circulation system is installed on one side of the nursing water tank, and the cooling circulation system is connected to the hollow structure of the side wall of the nursing water tank.

8. The ammunition care system according to claim 1, characterized in that, The frame is equipped with a horizontal adjustment mechanism, which includes a fine-tuning screw and a level. The level of the thermal probe and the thermal cup can be adjusted by the fine-tuning screw to ensure that the thermal probe extends vertically downward along the axis of the projectile with a verticality deviation of ≤0.05mm / m.

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