Vehicle-mounted automatic storage tank for aerospace products

Abstract

The invention relates to a spaceflight product storage device, in particular to a vehicle-mounted automatic storage tank for spaceflight products, and aims to solve the problems that in the prior art, it is difficult to ensure that the spaceflight products are always in an ideal storage environment during vehicle-mounted transportation and temporary storage; and the automatic operation performance of the storage tank and the cooperative work of the vehicle-mounted system are poor. The invention discloses a vehicle-mounted automatic storage tank for aerospace products. The vehicle-mounted automatic storage tank comprises an electric flat car, an automatic control system, a storage tank body arranged on the electric flat car and a storage bracket. The storage tank comprises a tank body, a tank door, a tank door driving mechanism used for driving the tank door to be opened and closed, a tank door locking mechanism used for locking the tank door, a moving guide mechanism used for guiding opening and closing of the tank door and a tank body supporting piece used for supporting the tank body. The moving guide mechanism comprises a lower guide rail assembly connected with the tank door, and the tank door can slide on the lower guide rail assembly.

Description

Technical Field

[0001] The invention relates to a storage device for aerospace products, in particular to a vehicle-mounted automatic storage tank for aerospace products. Background Art

[0002] During the transportation, transfer and temporary storage of aerospace products, there are extremely stringent requirements for environmental stability, safety and storage conditions. Traditional storage methods often rely on fixed storage facilities. When on-board transportation and temporary storage are required, it is difficult to ensure that aerospace products are always in an ideal storage environment. For example, temperature, humidity, air pressure and shock absorption protection may not be accurately controlled, and changes in the external environment can easily have an adverse effect on the precision components and performance of aerospace products. In addition, existing storage tanks also have deficiencies in automated operation and the coordinated work of on-board systems, and cannot efficiently meet the complex needs of aerospace products in dynamic transportation and temporary storage scenarios. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle-mounted automatic storage tank for aerospace products to solve the shortcomings of the prior art, that is, it is difficult to ensure that aerospace products are always in an ideal preservation environment during vehicle-mounted transportation and temporary storage, and that the automated operating performance of the storage tank and the coordinated work of the vehicle-mounted system are poor.

[0004] To achieve the above objectives, the technical solutions provided by the present invention are as follows:

[0005] A vehicle-mounted automatic storage tank for aerospace products is special in that it includes an electric flatbed truck, an automatic control system, a storage tank arranged on the electric flatbed truck, and a storage bracket; the storage tank includes a tank body, a tank door arranged at one end of the tank body, a tank door driving mechanism arranged on the electric flatbed truck and connected to and used for driving the tank door to open and close, a tank door locking mechanism for locking the tank door, a mobile guiding mechanism for guiding the opening and closing of the tank door, and a tank body support member arranged on the electric flatbed truck for supporting the tank body; the tank body includes an outer tank, an inner tank nested in the outer tank and gap-matched with the outer tank, and a filling interlayer arranged between the inner tank and the outer tank; the storage bracket is arranged in the inner tank for placing aerospace products; the mobile guiding mechanism includes a lower guide rail assembly arranged on the electric flatbed truck, the tank door is connected to the lower guide rail assembly, and can slide on the lower guide rail assembly; the automatic control system is arranged on the electric flatbed truck, and is electrically connected to the driving mechanism of the electric flatbed truck, the tank door driving mechanism, and the driving mechanism of the tank door locking mechanism, so as to control their working states.

[0006] Further, the tank door comprises a first door plate and a second door plate respectively connected to output ends of the tank door driving mechanism, and the first door plate and the second door plate move relative to or towards each other under the drive of the tank door driving mechanism;

[0007] A toothed structure A is provided between the butt joint surfaces of the first door panel, the second door panel and the outer tank, and between the butt joint surfaces of the first door panel and the second door panel, for achieving a labyrinth seal.

[0008] Further, the lower guide rail assembly includes a first movable support assembly and a second movable support assembly respectively connected to the first door panel and the second door panel;

[0009] The first mobile support assembly includes a linear slide rail and a steel ball guide rail arranged on the electric flatbed vehicle; the linear slide rail includes a first slide rail arranged above the electric flatbed vehicle and a first slider arranged below the first door panel and slidably connected to the first slide rail;

[0010] The guide rail of the steel ball guide rail is arranged above the electric flatbed vehicle, and the sliding rail is connected to the first door panel;

[0011] The structure of the second movable support assembly is the same as that of the first movable support assembly.

[0012] Furthermore, the movable guide mechanism also includes an upper guide rail assembly arranged above the tank door, the upper guide rail assembly includes a mounting bracket connected to the outer tank, a second slide rail arranged on the mounting bracket, and two second sliders respectively connected to the first door panel and the second door panel, and the second slider is slidably connected to the second slide rail.

[0013] Furthermore, the tank door driving mechanism includes a lower guide rail servo motor, a reducer connected to the output end of the lower guide rail servo motor, and a segmented reverse lead screw nut mechanism connected to the output end of the reducer;

[0014] The reducer adopts a single-input dual-output reducer;

[0015] The segmented reverse screw nut mechanism includes two ball screws respectively connected to the two output ends of the reducer and two screw nuts respectively matched with the two ball screws. The lower guide rail servo motor drives the two ball screws to rotate in the same direction at the same time through the reducer; the two screw nuts are respectively fixed to the first door panel and the second door panel.

[0016] Furthermore, the first door panel and the second door panel are respectively provided with grooves at one end close to the tank body, and are engaged with one end of the outer tank through the grooves, and the toothed structure A is provided between the inner side wall of the groove and the outer side wall of the outer tank;

[0017] Connecting brackets are respectively arranged below the first door panel and the second door panel, and the sliding rails of the ball guide rails are respectively connected to the first door panel and the second door panel through the connecting brackets; the two lead screw nuts are respectively connected to the first door panel and the second door panel through the connecting brackets.

[0018] Furthermore, the tank door locking mechanism includes a locking ring sleeved on the outside of the tank door near one end of the tank body, and a locking ring servo motor whose output end is connected to the locking ring for driving the locking ring to move axially; the locking ring servo motor is arranged on the outside of the outer tank.

[0019] Furthermore, the inner tank includes two arc-shaped portions and two plane portions, the two plane portions are respectively located at the upper and lower sides and are arranged in parallel, the two arc-shaped portions are arranged opposite to each other, two ends of one arc-shaped portion are respectively connected to one end of the two plane portions, and two ends of the other arc-shaped portion are respectively connected to the other ends of the two plane portions;

[0020] The filling interlayer is arranged along the circumferential direction of the inner wall of the outer tank, and buffer layers are respectively arranged between the two plane parts and the filling interlayer.

[0021] Furthermore, it also includes a heating device, a refrigeration device, a humidifying device and an air pressure regulating device which are arranged in the inner tank and connected to the automatic control system.

[0022] Furthermore, the outer tank is made of steel, the inner tank is made of steel or composite material, and the buffer layer is set as polyurethane foam; the outer tank and the inner tank are coaxially arranged, and the central axis is arranged in the horizontal direction;

[0023] The electric flatbed vehicle adopts an AGV electric flatbed vehicle, a universal variable speed wheel is arranged at the bottom, and the automatic control system is arranged inside or below the AGV electric flatbed vehicle;

[0024] The tank door is arranged at the front of the AGV electric flat car.

[0025] Beneficial effects of the present invention:

[0026] 1. The tank body of the vehicle-mounted automatic storage tank for aerospace products of the present invention adopts a three-layer composite structure, which constitutes an effective shock-absorbing mechanism, can prevent the impact force generated by road bumps from damaging the precise structure of aerospace products, and fully protect aerospace products from vibration and impact during transportation. In addition, it has strong storage adaptability, does not need to rely on fixed storage facilities, has good flexibility in vehicle-mounted scenarios, can adapt to complex transportation conditions such as different road conditions and altitudes, and realizes dynamic protection of the safe storage of aerospace products.

[0027] 2. The vehicle-mounted automatic storage tank for aerospace products of the present invention adopts a tooth-embedded structure to achieve a labyrinth seal, and a filling interlayer is arranged in the outer tank and the inner tank. The sealing and heat-insulating materials have good performance, which can effectively block the influence of external factors on the environment inside the tank and ensure the long-term stability of the aerospace products.

[0028] 3. The vehicle-mounted automatic storage tank for aerospace products of the present invention has a highly efficient automatic control function, improves product storage and retrieval efficiency, and reduces the risk of damage to aerospace products. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0030] Figure 2 is a radial cross-sectional view of a tank body in an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of a tooth embedding structure in an embodiment of the present invention;

[0032] Figure 4 1 is a schematic diagram of the state of the locking ring when the tank door is opened in an embodiment of the present invention;

[0033] Figure 5 The state of the locking ring when the tank door is closed in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0034] Figure 6 The state of the locking ring when the tank door is closed in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0035] Figure 7 yes Figure 4 Axial cross-sectional view of the middle locking ring;

[0036] Figure 8 yes Figure 6 Axial cross-sectional view of the middle locking ring;

[0037] Fig. 9 is a structural schematic diagram of an upper guide rail assembly in an embodiment of the present invention;

[0038] Fig.10 is a structural schematic diagram of a lower guide rail assembly in an embodiment of the present invention;

[0039] Fig.11 It is a schematic diagram of the installation structure of the lower guide rail assembly in an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1-tank body, 101-outer tank, 102-filling interlayer, 103-inner tank, 104-buffer layer;

[0042] 2-tank door, 201-connecting bracket, 202-screw nut, A-tooth embedding structure;

[0043] 3-Electric flatbed car, 4-Universal variable speed wheels;

[0044] 5-lower guide rail assembly, 501-lower guide rail servo motor, 502-reducer, 503-ball screw, 504-ball guide rail, 505-first slide rail, 506-first slider;

[0045] 6-Storage bracket;

[0046] 7-tank door locking mechanism, 701-locking ring servo motor, 702-locking ring, 703-locking ring guide rail, 704-servo motor push rod;

[0047] 8-upper guide rail assembly, 801-second slide rail, 802-mounting bracket, 803-second slide block. DETAILED DESCRIPTION

[0048] The present invention provides a vehicle-mounted automatic storage tank structure for aerospace products. Figure 1 As shown, it includes an electric flatbed vehicle 3, a storage tank, a storage bracket 6, an automatic control system and other parts.

[0049] The electric flatbed trolley 3 adopts an AGV electric flatbed trolley, which is equipped with an electromagnetic or optical automatic guidance device inside, which can make the electric flatbed trolley travel along the specified guide path, and has safety protection and transfer functions. The wheels of the electric flatbed trolley 3 are universal variable speed wheels 4, which can rotate 360° and adjust the speed according to computer instructions. The tank door 2 is set at the front of the vehicle, so the height of the front of the vehicle is limited by the size of the tank door 2, and it is mainly used to bear the weight of the tank door 2; the interior of the vehicle is mainly used to place the automatic control system and batteries, etc.

[0050] The storage tank includes a tank body 1, a tank door 2 disposed at one end of the tank body 1, a tank door driving mechanism disposed below the tank door 2, a tank door locking mechanism 7 for locking the tank door 2, a moving guide mechanism for guiding the tank door 2, and a tank body support member disposed on an electric flatbed vehicle 3 for supporting the tank body 1. The tank body support member is connected to the vehicle plate of the electric flatbed vehicle 3 by bolts.

[0051] The structure of the tank 1 is as follows Figure 2As shown, it includes an outer tank 101, an inner tank 103 nested in the outer tank 101 and with a clearance fit therewith, and a filling interlayer 102 arranged between the inner tank 103 and the outer tank 101. The aerospace product is arranged in the inner tank 103 to avoid being exposed to contamination in a complex environment. In this embodiment, the inner tank 103 and the outer tank 101 are both cylindrical structures and are coaxially arranged, and a spherical head is arranged at the other end away from the tank door 2. The outer diameter of the outer tank 101 is 1120mm, the inner diameter is 1100mm, the wall thickness is 10mm, and it is made of steel. The outer diameter of the inner tank 103 is 1096mm, the inner diameter is 996mm, and the wall thickness is 50mm. The inner tank 103 is made of steel or composite materials such as PVC material, synthetic resin, etc. to reduce the load of the outer tank 101. The filling interlayer 102 is made of plastic foam material, specifically a polyurethane foam material with a thickness of 2mm. In this embodiment, in order to ensure the stability of aerospace products placed in the inner tank 103, the inner tank 103 includes two arc surface parts and two plane parts. The two plane parts are respectively located on the upper and lower sides and are arranged in parallel. The two arc surface parts are arranged opposite to each other, and the two ends of one arc surface part are respectively connected to one end of the two plane parts, and the two ends of the other arc surface part are respectively connected to the other ends of the two plane parts. The filling interlayer 102 is arranged along the circumference of the inner wall of the outer tank 101, and the two plane parts and the filling interlayer 102 are respectively filled with polyurethane foam as a buffer layer 104. In other embodiments of the present invention, the buffer layer 104 can also use elastic components or other elastic materials.

[0052] The tank door 2 adopts a double-door structure and a design scheme of opening and closing by sliding on both sides at the same time, which reduces half of the opening and closing stroke of a single tank door, thereby reducing the opening and closing time. The tank door 2 includes a first door panel and a second door panel respectively connected to the output end of the tank door driving mechanism. The tank door driving mechanism includes a lower guide rail servo motor 501, a reducer 502 connected to the output end of the lower guide rail servo motor 501, and a segmented reverse screw nut mechanism connected to the output end of the reducer 502. The reducer 502 is a single-input dual-output reducer. The segmented reverse screw nut mechanism includes two coaxially arranged ball screws 503 with one end respectively connected to the two output ends of the reducer 502, and a screw nut 202 corresponding to the ball screw 503. The lower guide rail servo motor 501 drives the two ball screws 503 to rotate in the same direction at the same time through the reducer 502. Since the two sections of ball screws rotate in the same direction, the two sections of ball screws rotate in the same direction. The threads on the lead screw 503 rotate in opposite directions. When the lead screw 503 is driven to rotate in the same direction, the two corresponding lead screw nuts 202 can realize back-to-back movement. A connecting bracket 201 is provided below the first door panel and the second door panel. The two lead screw nuts 202 are respectively connected to the connecting brackets 201 corresponding to the first door panel and the second door panel to realize the opening and closing of the tank door 2. The working principle of the ball screw 503 is as follows: when the lead screw rotates, the ball rolls between the raceways of the lead screw and the nut. Since the friction at the contact points between the ball and the lead screw and the nut is small, the nut can move relative to the axis of the lead screw, realizing the rotational movement of the lead screw, the linear movement of the nut, and the rolling movement of the ball in the lead screw and the nut. The first door panel and the second door panel are respectively welded to the upper ends of the corresponding connecting brackets 201 to form a rigid connection. A groove is provided at one end of the first door panel close to the tank body 1, and the groove is sleeved on one end of the outer tank 101. The inner wall of the groove and the outer wall of the outer tank 101 are circumferentially provided with a matching toothed structure A, such as Figure 3 As shown, the two are fully engaged to achieve a labyrinth seal. The outer diameter of the outer tank 101 does not include the tooth structure A. The structure of the second door panel is the same as that of the first door panel. The docking surfaces of the two are also provided with a matching tooth structure A. The labyrinth seal is achieved by fully engaging with each other, and a complete tank door 2 is formed after docking.

[0053] The tank door locking mechanism 7 is used to realize the rapid opening and closing of the tank door 2. The tank door locking mechanism 7 includes a locking ring 702 sleeved on one end of the tank door 2 and a locking ring servo motor 701 for driving the locking ring 702 to move axially. Figure 4 and Figure 7As shown, the locking ring servo motor 701 is arranged on the outside of the outer tank 101. The locking ring servo motor 701 is connected to drive the locking ring 702 to move along the central axis toward the other end of the tank body 1 through the servo motor push rod 704, so that the locking ring 702 is in the initial position and does not interfere with the movement of the tank door 2. Then the segmented reverse screw nut mechanism is controlled to work to open the tank door 2. In order to ensure the movement trajectory and stability of the locking ring 702, one end of the outer tank 101 is located on its outer side wall. A locking ring guide rail 703 is also provided. The locking ring guide rail 703 cooperates with the inner side wall of the locking ring 702 to guide the axial movement of the locking ring 702, as shown in FIG. Figure 5 After the tank door 2 is closed, the locking ring servo motor 701 is connected through the servo motor push rod 704 and drives the locking ring 702 to move along the central axis toward one end of the tank body 1, as shown in FIG. Figure 6 and Figure 8 As shown, the locking ring 702 is sleeved onto one end of the closed tank door 2 to lock the tank door 2.

[0054] The movable guide mechanism includes a lower guide rail assembly 5 arranged below the tank door 2. The lower guide rail assembly 5 includes a first movable support assembly and a second movable support assembly respectively connected to the first door panel and the second door panel. The first movable support assembly adopts a combination of a linear slide rail and a steel ball guide rail 504 to achieve guiding support for the tank door 2. Fig.10 and Fig.11 As shown, the steel ball guide rail 504 is arranged above the electric flatbed trolley 3, and a triple steel ball guide rail is adopted. The guide rail of the triple steel ball guide rail is arranged on the electric flatbed trolley 3 and fixedly connected thereto. The connecting bracket 201 of the first door panel is connected to the sliding rail of the triple steel ball guide rail by M8X16 bolts and nuts. The linear slide rail includes a first slide rail 505 arranged above the electric flatbed trolley 3 and a first slider 506 arranged below the first door panel and slidably connected to the first slide rail 505. The first slider 506 is fixedly connected to the connecting bracket 201 of the first door panel. The structure of the second movable support assembly is the same as that of the first movable support assembly, including a linear slide rail and a steel ball guide rail 504 connecting the second door panel. In order to further impose constraints to prevent the first door panel and the second door panel from deviating from the lower guide rail assembly 5 when moving, the movable guide mechanism also includes an upper guide rail assembly 8 arranged above the tank door 2, as shown in FIG. Fig. 9 As shown, the upper guide rail assembly 8 includes a mounting bracket 802 connected to the outer tank 101, a second slide rail 801 arranged on the mounting bracket 802, and two second sliders 803 respectively connected to the first door panel and the second door panel, and the second slider 803 is slidably connected to the second slide rail 801.

[0055] The storage bracket 6 is arranged in the inner tank 103 for placing aerospace products.

[0056] Taking into account the ease of installation and use, the servo motors of the present invention all adopt DC servo motors and matching drivers, and can perform position and speed control as needed. Among them, the lower guide rail servo motor 501 is driven by a motor and a one-input and two-output reducer 502 to realize the opening and closing of the tank door 2, and can move forward and reverse. The locking ring servo motor 701 of the tank door locking mechanism 7 can also move forward and reverse.

[0057] The automatic control system is integrated in the electric flatbed truck 3 to control the movement of the electric flatbed truck 3 and the opening and closing of the tank door 2, so as to realize the movement control and coordination of each movement mechanism. The automatic control system includes a controller, an indicator light, a power supply, a signal processing component, a switch, a sensor, and a remote control component.

[0058] The controller uses a PIC single-chip microcomputer and is the core of the entire automatic control system. It is responsible for analyzing, processing and judging the received signals, and according to the preset programs and algorithms, it sends control instructions to the lower guide servo motor 501, the locking ring servo motor 701, the reducer 502, the AGV electric flat car, etc., to achieve precise control of the movement of the AGV electric flat car and the opening and closing of the tank door 2, ensuring the coordinated operation of various motion mechanisms.

[0059] There are 4 switches, namely power switch, emergency stop switch, door opening switch and door closing switch, which are push-button switches. The sensors include tank door motion sensor, tank door locking mechanism sensor, temperature and humidity sensor and pressure sensor.

[0060] The tank door motion sensor includes three high-precision position sensors corresponding to the tank door 2 on each side. A total of 6 tank doors 2 on both sides are required, all of which use photoelectric switches, mainly measuring the door opening limit position, the door closing limit position, and the speed conversion position (two high and low speeds are set when closing the door, and the speed changes at the conversion position). The tank door locking mechanism sensor includes a photoelectric switch corresponding to the limit position of the movement of the locking ring servo motor 701, and a total of 2 photoelectric switches are required. The temperature and humidity sensor is installed in the inner tank 103, which is used to measure the temperature and humidity in the tank body 1 in real time, convert the physical quantities of temperature and humidity into electrical signals, and transmit them to the signal processing component, which processes and transmits them to the controller. The controller starts the corresponding temperature and humidity control module based on the information fed back by the temperature and humidity sensor, combined with the preset temperature and humidity range and control strategy, and adjusts the temperature and humidity in the tank body 1 to meet the storage or transportation requirements of the items in the tank body 1. The pressure sensor is also installed in the inner tank 103, which is used to monitor the air pressure changes in the tank body 1 in real time. The physical quantity of the air pressure is converted into an electrical signal and transmitted to the signal processing component and the controller. Based on the information fed back by the pressure sensor, the controller can timely understand the air pressure status in the tank body 1. When the air pressure exceeds the safe range, corresponding measures can be taken to adjust it, such as setting and adjusting the exhaust valve, safety valve, etc. in the tank body 1 to ensure the stability of the air pressure in the tank body 1 and ensure the safe operation of the system.

[0061] For the convenience of control, this embodiment is provided with three indicator lights, namely, the tank door opening indicator light, the tank door closing indicator light and the fault alarm indicator light, which are used to intuitively display the working status of the tank door, such as whether the power is connected, whether each component is operating normally, whether there is a fault, etc. Indicator lights of different colors and flashing modes can represent different status information, which is convenient for operators to understand the operation status of the system in a timely manner so as to perform corresponding operations and maintenance.

[0062] The remote control component is used to receive signals and perform remote control. A total of 8 buttons are set, of which 4 buttons can individually control the forward and reverse rotation of each servo motor to achieve the setting of maintenance and inspection mode; 1 button realizes the one-key start mode to complete a complete set of movement process; the remaining 3 buttons are spare keys.

[0063] The signal processing component is provided with a signal processing circuit for receiving and processing the signals of each sensor. The power supply is provided with a DC-DC conversion circuit and provides the voltage and signal required by the control system. At the same time, it provides the power required for the operation of each servo motor, reducer 502, AGV electric flat car, etc., and supplies power to other electrical components such as controllers, signal processing components, sensors, etc. to ensure the normal operation of the entire control system. The power supply should have a stable output voltage and sufficient power to meet the needs of the system under different working conditions, and may be equipped with a power management module to monitor and manage the power supply, such as overvoltage and overcurrent protection.

[0064] The temperature control scheme of this embodiment includes heating and cooling, which are specifically as follows:

[0065] (1) Heating method: When the temperature and humidity sensor detects that the temperature in the inner tank 103 is lower than the set lower limit, the controller starts the heating device, such as an electric heating wire, a heating plate, etc. The heating device can be evenly distributed on the inner wall or a specific position of the inner tank 103, and the temperature in the inner tank 103 is increased by heat conduction. At the same time, a temperature feedback control loop can be set to accurately adjust the power of the heating device according to the temperature value monitored in real time by the temperature and humidity sensor to achieve stable temperature control.

[0066] (2) Refrigeration mode: If the temperature in the inner tank 103 is higher than the set upper limit, the controller turns on the refrigeration device, such as a compressor refrigeration device, a semiconductor refrigeration device, etc. The evaporator of the refrigeration device can be installed in the inner tank 103, and the temperature in the inner tank 103 is reduced by the evaporation heat absorption of the refrigerant. Similarly, the feedback signal of the temperature and humidity sensor is used to adjust the operating state of the refrigeration device in real time to ensure that the temperature in the inner tank 103 is maintained within the set range.

[0067] The humidity control scheme of this embodiment includes dehumidification and humidification, which are specifically as follows:

[0068] (1) Dehumidification mode: When the temperature and humidity sensor detects that the humidity in the inner tank 103 is higher than the set upper limit, the dehumidification device is started. Common dehumidification methods include condensation dehumidification and adsorption dehumidification. Condensation dehumidification is to use a refrigeration device to condense the water vapor in the inner tank 103 into water droplets on a low-temperature surface, and collect and discharge the water through a drainage system; adsorption dehumidification is to use an adsorbent, such as silica gel, molecular sieve, etc., to absorb moisture in the air, thereby reducing the humidity in the inner tank 103. The appropriate dehumidification method can be selected according to actual needs and environmental conditions, and can be accurately controlled through the feedback signal of the temperature and humidity sensor.

[0069] (2) Humidification method: If the humidity in the inner tank 103 is lower than the set lower limit, a humidification operation needs to be performed by a humidification device. The humidification device can use steam humidification, atomization humidification, etc. to inject an appropriate amount of water vapor or water mist into the inner tank 103 to increase the humidity of the air. The humidification amount can be adjusted according to the feedback information of the temperature and humidity sensor to ensure that the humidity in the inner tank 103 meets the set requirements.

[0070] The air pressure control scheme of this embodiment is specifically as follows:

[0071] (1) Pressure regulation method: The pressure sensor monitors the air pressure in the inner tank 103 in real time and transmits the air pressure signal to the controller. When the air pressure in the inner tank 103 is higher than the set upper limit, the controller opens the exhaust valve to discharge part of the gas in the inner tank 103 to reduce the air pressure to a safe range; when the air pressure is lower than the set lower limit, external air can be introduced through the air intake valve to increase the air pressure in the inner tank 103. During the air intake and exhaust process, a flow control valve can be set to accurately control the flow of air intake and exhaust according to the feedback signal of the pressure sensor to achieve stable regulation of air pressure.

[0072] (2) Safety valve protection: In order to ensure the safety of the gas pressure in the inner tank 103, a safety valve can be set. When the gas pressure exceeds the set pressure value of the safety valve, the safety valve automatically opens to quickly release the gas in the inner tank 103 to prevent safety accidents caused by excessive gas pressure. The set pressure of the safety valve should be reasonably adjusted according to the design pressure of the inner tank 103 and the actual use.

[0073] (3) Pressure monitoring and alarm: When the air pressure exceeds the normal operating range, the controller can not only adjust the pressure but also trigger alarm devices, such as sound and light alarms, to remind operators to take timely measures to ensure the safe operation of the system.

Claims

1. An on-vehicle automatic storage tank for aerospace products, characterized by: It comprises an electric flatbed vehicle (3), an automatic control system, a storage tank arranged on the electric flatbed vehicle (3), and a storage bracket (6); The storage tank comprises a tank body (1), a tank door (2) arranged at one end of the tank body (1), a tank door driving mechanism arranged on an electric flatbed vehicle (3) and connected to and used for driving the tank door (2) to open and close, a tank door locking mechanism (7) used for locking the tank door (2), a moving guide mechanism used for guiding the opening and closing of the tank door (2), and a tank body support member arranged on the electric flatbed vehicle (3) for supporting the tank body (1); The tank body (1) comprises an outer tank (101), an inner tank (103) nested in the outer tank (101) and loosely matched therewith, and a filling interlayer (102) arranged between the inner tank (103) and the outer tank (101); the storage bracket (6) is arranged in the inner tank (103) and is used to place aerospace products; The movable guide mechanism comprises a lower guide rail assembly (5) arranged on the electric flatbed vehicle (3); the tank door (2) is connected to the lower guide rail assembly (5) and can slide on the lower guide rail assembly (5); The automatic control system is arranged on the electric flatbed vehicle (3) and is electrically connected to the driving mechanism of the electric flatbed vehicle (3), the tank door driving mechanism and the driving mechanism of the tank door locking mechanism (7) for controlling their working states.

2. According to claim 1, the vehicle-mounted automatic storage tank for aerospace products is characterized in that: The tank door (2) comprises a first door plate and a second door plate respectively connected to output ends of the tank door driving mechanism, and the first door plate and the second door plate move relative to each other or move towards each other under the drive of the tank door driving mechanism; A toothed structure A is provided between the butt joint surfaces of the first door panel, the second door panel and the outer tank (101), and between the butt joint surfaces of the first door panel and the second door panel, for achieving a labyrinth seal.

3. According to claim 2, the vehicle-mounted automatic storage tank for aerospace products is characterized in that: The lower guide rail assembly (5) comprises a first movable support assembly and a second movable support assembly respectively connected to the first door panel and the second door panel; The first movable support assembly comprises a linear slide rail and a steel ball guide rail (504) arranged on the electric flatbed vehicle (3); the linear slide rail comprises a first slide rail (505) arranged above the electric flatbed vehicle (3) and a first slider (506) arranged below the first door panel and slidably connected to the first slide rail (505); The guide rail of the steel ball guide rail (504) is arranged above the electric flatbed vehicle (3), and the sliding rail is connected to the first door panel; The structure of the second movable support assembly is the same as that of the first movable support assembly.

4. The vehicle-mounted automatic storage tank for aerospace products according to claim 3, characterized in that: The movable guide mechanism further comprises an upper guide rail assembly (8) arranged above the tank door (2), the upper guide rail assembly (8) comprising a mounting bracket (802) connected to the outer tank (101), a second slide rail (801) arranged on the mounting bracket (802), and two second sliding blocks (803) respectively connected to the first door panel and the second door panel, the second sliding block (803) being slidably connected to the second slide rail (801).

5. The vehicle-mounted automatic storage tank for aerospace products according to claim 4, characterized in that: The tank door driving mechanism comprises a lower guide rail servo motor (501), a reducer (502) connected to the output end of the lower guide rail servo motor (501), and a segmented reverse lead screw nut mechanism connected to the output end of the reducer (502); The reducer (502) is a single-input dual-output reducer; The segmented reverse lead screw nut mechanism comprises two ball screws (503) respectively connected to two output ends of a reducer (502) and two lead screw nuts (202) respectively matched with the two ball screws (503); the lower guide rail servo motor (501) drives the two ball screws (503) to rotate in the same direction simultaneously through the reducer (502); and the two lead screw nuts (202) are respectively fixedly connected to the first door panel and the second door panel.

6. The vehicle-mounted automatic storage tank for aerospace products according to claim 5, characterized in that: The first door panel and the second door panel are respectively provided with grooves at one end close to the tank body (1), and are engaged with one end of the outer tank (101) through the grooves, and the toothed structure A is provided between the inner side wall of the groove and the outer side wall of the outer tank (101); A connecting bracket (201) is respectively arranged below the first door panel and the second door panel, and the sliding rails of the steel ball guide rail (504) are respectively connected to the first door panel and the second door panel via the connecting bracket (201); the two lead screw nuts (202) are respectively connected to the first door panel and the second door panel via the connecting bracket (201).

7. An on-vehicle automatic storage tank for aerospace products according to any one of claims 1 to 6, characterized in that: The tank door locking mechanism (7) comprises a locking ring (702) sleeved on the outside of the tank door (2) near one end of the tank body (1), and a locking ring servo motor (701) having an output end connected to the locking ring (702) for driving the locking ring (702) to move axially; the locking ring servo motor (701) is arranged on the outside of the outer tank (101).

8. The vehicle-mounted automatic storage tank for aerospace products according to claim 7, characterized in that: The inner tank (103) comprises two arcuate portions and two plane portions, the two plane portions are respectively located at the upper and lower sides and are arranged in parallel, the two arcuate portions are arranged opposite to each other, the two ends of one arcuate portion are respectively connected to one end of the two plane portions, and the two ends of the other arcuate portion are respectively connected to the other ends of the two plane portions; The filling interlayer (102) is arranged along the circumferential direction of the inner wall of the outer tank (101), and buffer layers (104) are respectively arranged between the two plane portions and the filling interlayer (102).

9. The vehicle-mounted automatic storage tank for aerospace products according to claim 8, characterized in that: It also includes a heating device, a refrigeration device, a humidifying device and an air pressure regulating device which are arranged in the inner tank (103) and connected to the automatic control system.

10. The vehicle-mounted automatic storage tank for aerospace products according to claim 9, characterized in that: The outer tank (101) is made of steel, the inner tank (103) is made of steel or composite material, and the buffer layer (104) is set as polyurethane foam; the outer tank (101) and the inner tank (103) are coaxially arranged, and the central axis is arranged in the horizontal direction; The electric flatbed vehicle (3) is an AGV electric flatbed vehicle, a universal variable speed wheel (4) is arranged below, and the automatic control system is arranged inside or below the AGV electric flatbed vehicle; The tank door (2) is arranged at the front of the AGV electric flat car.

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