A gravity simulation device

Abstract

The present invention discloses a gravity simulation device, which relates to the field of special environment simulation technology, including a sample airtight cabin, a sample outer cabin and a rotating assembly, wherein the sample airtight cabin includes an upper cover and a holding cabin, the upper cover includes a light transmission device, the light transmission device can allow some light to pass through, the holding cabin is used to hold samples and prefabricated gas, and the holding cabin can be sealed by the upper cover, the holding cabin is connected to an air suction device, and the pressure in the holding cabin can be changed; the sample outer cabin is used to hold the sample airtight cabin, and the sample airtight cabin is provided with multiple and evenly arranged in the sample outer cabin; the rotating assembly is rotatably connected to the sample outer cabin for simulating gravity. The present invention can achieve self-weight balance, and can fully simulate special environments to ensure experimental results.

Description

Technical Field

[0001] The present invention relates to the technical field of special environment simulation, in particular to a gravity simulation device. Background Art

[0002] Currently, dual-axis cyclotrons are widely used in the field of special environment simulation to simulate microgravity. Systems that simulate gravity are relatively rare. Other countries have developed gravity simulation systems that incorporate sample chambers. Counterweights are required to maintain the chamber's balance when samples are loaded, making debugging difficult. Furthermore, current environmental simulation systems only adequately simulate gravity, lacking simulations of pressure, atmospheric conditions, and illumination. This results in inadequate simulations of the experimental environment, which can affect actual experimental results.

[0003] Therefore, a gravity simulation device is needed that can achieve its own counterweight balance and fully simulate special environments to ensure experimental results. Summary of the Invention

[0004] The purpose of the present invention is to provide a gravity simulation device to solve the problems existing in the above-mentioned prior art, which can achieve self-weight balance and can fully simulate special environments to ensure experimental results.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a gravity simulation device, comprising

[0007] A sample airtight chamber, comprising an upper cover and a storage chamber, wherein the upper cover is provided with a light transmission device capable of allowing some light to pass through, the storage chamber is used to accommodate samples and prefabricated gas, and the storage chamber can be sealed by the upper cover, and the storage chamber is connected to an air suction device capable of changing the pressure within the storage chamber;

[0008] A sample outer cabin, the sample outer cabin is used to accommodate the sample airtight cabin, and a plurality of the sample airtight cabins are provided and evenly arranged in the sample outer cabin;

[0009] A rotating component is provided, wherein the rotating component can rotate the sample outer chamber to simulate gravity.

[0010] Preferably, the light-transmitting device is sapphire glass, which can transmit deep ultraviolet light and near infrared light, and has a transmittance of not less than 90%.

[0011] Preferably, the sample airtight chamber also includes a base, a first flange is provided on the top of the base, a second flange is provided on the bottom of the containing chamber, the first flange is fixedly connected to the second flange, and a sealing ring is filled between the first flange and the second flange.

[0012] Preferably, a gas inlet and outlet pipe is connected to the base, and the gas inlet and outlet pipe can be communicated with the storage cabin. A needle valve is provided on the gas inlet and outlet pipe, and the needle valve is used to control the opening and closing of the gas inlet and outlet pipe. The air suction device is a vacuum pump, and the end of the gas inlet and outlet pipe away from the base is connected to a three-way pipe, and the three interfaces of the three-way pipe are respectively connected to the vacuum pump, the pressure gauge and the inflation pump, and each interface of the three-way pipe is provided with a control valve, and the control valve is used to control the opening and closing of the corresponding interface. The two ends of the inflation pump are respectively connected to the gas to be filled and the gas inlet and outlet pipe, wherein the vacuum pump is used to suck the gas in the storage cabin, the pressure gauge is used to monitor the pressure in the storage cabin, and the inflation pump is used to fill the gas to be filled into the storage cabin.

[0013] Preferably, the rotating assembly includes a first rotating assembly, a second rotating assembly and a third rotating assembly, the first rotating assembly includes a first motor and a first frame, the first frame includes a first rod, a second rod, a third rod and a fourth rod fixed in sequence and vertically connected, and the first rod, the second rod, the third rod and the fourth rod can be enclosed to form a rectangular frame, the first motor is fixed on the first rod, the second rotating assembly includes a second motor and a second frame, the second frame includes a fifth rod, a sixth rod, a seventh rod and an eighth rod fixed in sequence and vertically connected, and the fifth rod, the sixth rod, the seventh rod and the eighth rod can be A rectangular frame is enclosed, the fifth rod is fixedly connected to the rotating shaft of the first motor, the second motor is fixedly set on the eighth rod of the second frame, the third rotating assembly includes a third motor and a third frame, the third frame includes a ninth rod, a tenth rod, an eleventh rod and a twelfth rod fixed in sequence and vertically connected, and the ninth rod, the tenth rod, the eleventh rod and the twelfth rod can be enclosed to form a rectangular frame, the twelfth rod is fixedly connected to the output shaft of the second motor, the sample outer chamber is rotatably set inside the third frame and is driven by the third motor, wherein the first frame, the second frame and the third frame are concentrically set.

[0014] Preferably, it also includes a top plate and a bottom plate, the top plate and the bottom plate are fixedly connected to the third frame through a support frame, the sample outer chamber is rotatably arranged between the top plate and the bottom plate through a rotating shaft, and a worm gear is provided at the bottom of the sample outer chamber, the third motor is a right-angle reduction motor and is provided with a worm, and the worm is meshingly connected to the worm gear.

[0015] Preferably, the invention further comprises a first conductive slip ring, a second conductive slip ring and a third conductive slip ring, wherein the stator portion of the first conductive slip ring is fixedly arranged on the third rod, and the rotor portion is fixedly connected to the seventh rod; the stator portion of the second conductive slip ring is fixedly connected to the sixth rod, and the rotor portion is fixedly connected to the tenth rod; the stator portion of the third conductive slip ring is fixedly arranged on the top plate, and the rotor portion is fixedly arranged on the rotating shaft.

[0016] Preferably, it also includes a fixed seat, and a height-adjusting support foot and a roller are provided at the bottom of the fixed seat. The height-adjusting support foot is arranged adjacent to the roller, and the height-adjusting support foot is used to adjust the height of the fixed seat. The second rod is fixedly connected to the fixed seat, and the first rod is arranged vertically to the fixed seat.

[0017] Preferably, three sample airtight cabins are provided and are evenly placed in the sample outer cabin, and the center of gravity of the sample outer cabin coincides with the concentric points of the first frame, the second frame and the third frame.

[0018] Preferably, the sample outer chamber is provided with a temperature control device and filled with dry ice so as to be able to adjust the temperature.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The sample airtight cabin of the present invention includes an upper cover and a containing cabin. The upper cover is provided with a light transmission device, which can allow part of the light to pass through, change the incident light source according to the simulation of different environments, and provide different light radiation conditions. The containing cabin is used to accommodate samples and prefabricated gases, and the containing cabin can be sealed by the upper cover. The containing cabin is connected to an air suction device, which can change the pressure in the containing cabin and provide different pressure conditions. The sample outer cabin is used to accommodate the sample airtight cabin, and multiple sample airtight cabins are provided and evenly arranged in the sample outer cabin, which can achieve self-balance and avoid the use of counterweights. The rotating assembly can rotate the sample outer cabin to simulate gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the structure of the sample airtight cabin in some embodiments of the present invention;

[0023] Figure 2A schematic diagram of the structure of a gravity simulation system in some embodiments of the present invention;

[0024] Figure 3 Schematic diagram of a sample outer cylinder disposed on a third rotating assembly in some embodiments of the present invention.

[0025] In the figure: 101-sample airtight cabin; 102-sample outer cabin; 1-upper cover; 2-light transmission device; 3-accommodating cabin; 4-second flange; 5-first flange; 6-support leg; 7-gas inlet and outlet pipe; 8-first motor; 9-second motor; 10-third motor; 11-first conductive slip ring; 12-second conductive slip ring; 13-third conductive slip ring; 14-first rod; 15-second rod; 16-third rod; 17-fourth rod; 18-fifth rod; 19-sixth rod; 20-seventh rod; 21-eighth rod; 22-ninth rod; 23-tenth rod; 24-eleventh rod; 25-twelfth rod; 26-roller; 27-fixing seat; 28-height adjustment support foot; 29-top plate; 30-bottom plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide a gravity simulation device to solve the problems existing in the prior art, which can achieve self-weight balance and fully simulate special environments to ensure experimental results.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1-Figure 3As shown, the present invention provides a gravity simulation device, including a sample airtight chamber 101, a sample outer chamber 102, and a rotating assembly. The sample airtight chamber 101 includes an upper cover 1 and a receiving chamber 3. The upper cover 1 is provided with a light transmission device 2, which can allow some light to pass through. The receiving chamber 3 is used to hold samples and prefabricated gas, and the receiving chamber 3 can be sealed by the upper cover 1. The receiving chamber 3 is connected to an air suction device, which can change the pressure within the receiving chamber 3. The sample outer chamber 102 is used to hold the sample airtight chamber 101, and there are multiple sample airtight chambers 101 and they are evenly arranged in the sample outer chamber 102. The rotating assembly can rotate the sample outer chamber 102 to simulate gravity. The light transmission device 2 of the upper cover 1 can allow some light to pass through and can change the incident light source according to the simulation requirements to provide different light radiation conditions. The incident light source can be a light plate set on the top of the sample outer chamber 102. The light plate can adjust the light intensity and light period according to the experimental requirements to simulate the light conditions on different planetary surfaces, such as the day and night light cycle on Mars. The containment chamber 3 is connected to an air suction device, which can change its internal pressure and thus provide different pressure conditions. The provision of multiple sample airtight chambers 101 evenly arranged within the sample outer chamber 102 not only enables multiple parallel experiments to be conducted at once, improving experimental efficiency, but also achieves self-balance through reasonable and even distribution, avoiding the use of counterweights. This simplifies the device structure, reduces the complex operations such as installation and debugging that may be caused by counterweights, and reduces the potential risk of mechanical failure. It also ensures the stability of the entire device during operation, ensuring that the samples in each airtight chamber are in a relatively consistent and stable external environment, which helps to improve the accuracy of experimental data and the scientific nature of comparative analysis.

[0030] It should be noted that the sample outer chamber 102 is cylindrical, the top cover and the bottom cover are made of polyoxymethylene (POM) material, and the side wall of the cylinder is made of polypropylene (PP) material.

[0031] In some embodiments, the light-transmitting device 2 is made of sapphire glass. Sapphire glass is highly transparent over a wide wavelength range from ultraviolet to near-infrared, effectively reducing light absorption and scattering, allowing light to pass through with high transmittance and low loss, thereby ensuring the light transmission efficiency of the light-transmitting device. Sapphire glass also has excellent wear and scratch resistance. Even in harsh operating environments or when in frequent contact with other objects, it maintains a smooth and transparent surface and is less susceptible to scratches and wear, thereby extending the service life of the light-transmitting device and reducing the risk of optical performance degradation due to surface damage. It should be noted that the light-transmitting device can also be made of GE216 quartz glass. GE216 quartz glass is transparent to deep ultraviolet and near-infrared light, with a transmittance of not less than 90%, which meets the requirements for simulating the radiation environment on the surface of planets such as Mars. GE216 quartz glass is transparent to deep ultraviolet and near-infrared light, possessing a wide spectrum of transmittance, and can simulate full-spectrum or specific wavelength light environments. For example, when simulating the radiation environment on the surface of planets like Mars, the sunlight received by the Martian surface includes multiple wavelengths, from ultraviolet to infrared. GE216 quartz glass allows light in these wavelengths to pass through, accurately replicating the actual lighting conditions on Mars. This helps researchers accurately study the changes in the properties of materials such as detectors and biological samples under actual Martian radiation. It should be noted that GE216 quartz glass is a cold-polished quartz sheet made of high-purity quartz glass, and its cost is lower than that of sapphire glass.

[0032] In some embodiments, the sample airtight chamber 101 also includes a base. A first flange 5 is provided at the top of the base, and a second flange 4 is provided at the bottom of the holding chamber 3. The first flange 5 and the second flange 4 are fixedly connected, and a sealing ring is placed between the first flange 5 and the second flange 4. The sealing ring is preferably an EPDM rubber ring. The flange connection ensures a tight fit between the holding chamber 3 and the base, preventing loosening or separation due to external forces such as vibration or shaking, thereby ensuring the structural integrity and safety of the entire airtight chamber. The flanges are KF16 or KF25, and the holding chamber 3 is made of LY16 aluminum. LY16 aluminum has excellent spot and roll welding properties, is not prone to cracking, and provides excellent weld airtightness. The base is made of 304 stainless steel. An EPDM O-ring (ethylene-propylene-diene rubber, hydrogen peroxide cured) is used between the flanges to ensure the airtightness of the holding chamber 3.

[0033] It should be noted that the connection between the upper cover of the sample airtight chamber and the containing chamber is also filled and sealed with an EPDM rubber O-ring.

[0034] In some embodiments, a gas inlet and outlet pipe 7 is connected to the base, and the gas inlet and outlet pipe 7 can be connected to the holding cabin 3. A needle valve 6 is provided on the gas inlet and outlet pipe, and the needle valve 6 is used to control the opening and closing of the gas inlet and outlet pipe. The air suction device is a vacuum pump, and the end of the gas inlet and outlet pipe 7 away from the base is connected to a three-way pipe. The three interfaces of the three-way pipe are respectively connected to the vacuum pump, the pressure gauge and the inflation pump, and a control valve is provided at each interface of the three-way pipe. The control valve is used to control the opening and closing of the corresponding interface, and the two ends of the inflation pump are respectively connected to the gas to be filled and the gas inlet and outlet pipe, wherein the vacuum pump is used to suck the gas in the holding cabin 3, the pressure gauge is used to monitor the pressure in the holding cabin, and the inflation pump is used to fill the gas to be filled into the holding cabin 3. When in use, the control valve at the pressure gauge interface is in the normally open state. First open the control valve and needle valve of the vacuum pump interface. When the vacuum pump processes the gas inside the containment chamber to a certain pressure value (generally 0.001Pa), close the control valve of the vacuum pump interface, open the control valve of the inflation pump interface, and fill the gas of the planet to be simulated until the pressure reaches the preset value (generally standard atmospheric pressure). Then close the control valve of the inflation pump interface and open the control valve of the vacuum pump interface. After the pressure in the containment chamber drops to the pressure required for the experiment, close the control valve of the vacuum pump interface and the needle valve. The sample airtight chamber completes the gas and pressure settings.

[0035] It should be noted that a German Chemvak vacuum pump was used to simulate the atmospheric pressure on the Martian surface, while a PRV101N Pirani vacuum transmitter was used to monitor pressure. The PRV101N utilizes the Pirani vacuum measurement principle and can monitor pressures from 0.01 to 100 kPa, covering a measurement range of seven orders of magnitude. Standard 485 data communication enables data acquisition and automatic pressure control.

[0036] It should also be noted that the pressure-maintaining capacity of the sample airtight cabin needs to be tested before the experiment. The testing method is as follows: after the sample airtight cabin is sealed, the sample airtight cabin is connected to the vacuum pump, pressure gauge and inflation pump through a three-way pipe, the control valve of the vacuum pump interface is opened, the control valve of the pressure gauge interface is opened, and the control valve of the inflation pump interface remains closed. The vacuum pump starts to work to reduce the pressure of the sample airtight cabin to the standard value (100 or 50 Pa), the needle valve, the vacuum pump interface control valve and the pressure gauge interface control valve are closed in turn, the three-way pipe is removed, and the sample airtight cabin is placed in a separate indoor environment for 24 hours. The three-way pipe is then connected to the sample airtight cabin, the vacuum pump interface control valve and the press interface control valve are opened, and the inflation pump interface control valve remains closed. The vacuum pump works to reduce the air pressure in the containment cabin to 0.001 Pa, the vacuum pump interface control valve and the needle valve are closed in turn, and the pressure value is read using a pressure gauge. If the deviation does not exceed 1%, it is considered that the pressure-maintaining capacity of the airtight cabin meets the requirements.

[0037] It should be noted that a compressed air system or a gas displacement system can be used instead of a vacuum pump to control the airtight chamber pressure. For example, a compressed air system can achieve the same pressure regulation effect by precisely controlling the pressure and flow of the compressed air, while a gas displacement system provides a stable gas environment by replacing the gas composition within the chamber. Furthermore, the use of gas adsorption devices (such as molecular sieves or activated carbon) can also adjust the gas composition to simulate the gas conditions of different environments.

[0038] In some embodiments, the rotating assembly includes a first rotating assembly, a second rotating assembly and a third rotating assembly, the first rotating assembly includes a first motor 8 and a first frame, the first frame includes a first rod 14, a second rod 15, a third rod 16 and a fourth rod 17 that are fixed and vertically connected in sequence, the fourth rod 17 is perpendicular to and fixedly connected to the first rod 14, and the first rod 14, the second rod 15, the third rod 16 and the fourth rod 17 can be enclosed to form a rectangular frame, the first motor 8 is fixedly set on the first rod 14, the second rotating assembly includes a second motor 9 and a second frame, the second frame includes a fifth rod 18, a sixth rod 19, a seventh rod 20 and an eighth rod 21 that are fixed and vertically connected in sequence, the eighth rod 21 is perpendicular to and fixedly connected to the fifth rod 18, and the fifth rod 18, the sixth rod 1 9, the seventh rod 20 and the eighth rod 21 can be enclosed to form a rectangular frame, the fifth rod 18 is fixedly connected to the rotating shaft of the first motor 8, the second motor 9 is fixedly set on the eighth rod 21 of the second frame, the third rotating assembly includes a third motor 10 and a third frame, the third frame includes a ninth rod 22, a tenth rod 23, an eleventh rod 24, and a twelfth rod 25 fixed and vertically connected in sequence, the twelfth rod 25 is perpendicular to and fixedly connected to the ninth rod 22, and the ninth rod 22, the tenth rod 23, the eleventh rod 24, and the twelfth rod 25 can be enclosed to form a rectangular frame, the twelfth rod 25 is fixedly connected to the output shaft of the second motor 9, the sample outer chamber 102 is rotatably set inside the third frame and driven by the third motor 10, wherein the first frame, the second frame, and the third frame are concentrically arranged. By driving different frames with three motors respectively, rotation in multiple dimensions can be achieved. This multi-dimensional rotation capability can simulate extremely complex changes in gravity environments. In particular, the third motor 10 drives the sample outer cabin 102 to rotate, generating additional centrifugal force outside the other two frames. The controllability of the rotation speed allows the magnitude of the centrifugal force to be adjusted according to experimental requirements. At higher speeds, the centrifugal force increases, which can simulate gravity conditions similar to those on Earth or higher. At low speeds, the centrifugal force decreases, making it suitable for simulating low-gravity environments such as the moon and Mars. This adjustable centrifugal force design enables the device to flexibly respond to different experimental requirements and provide a wide range of gravity simulations.

[0039] It should be noted that the first and second rotating assemblies can consider using universal joints instead of motor shaft linkage to achieve multi-directional rotation of the frame. Universal joints allow for multi-axis rotation of the sample through mechanical linkage of the frame without a vertical motor shaft. Alternatively, magnetic bearings can be used instead of mechanical shaft rotation to reduce friction and noise while improving system stability and accuracy.

[0040] In some embodiments, the gravity simulation device further comprises a top plate 29 and a bottom plate 30, the top plate 29 and the bottom plate 30 being fixedly connected to the third frame via a support frame, the sample outer chamber 102 being rotatably arranged between the top plate 29 and the bottom plate 30 via a rotating shaft, the rotating shaft being made of an aluminum alloy shaft, a worm gear being provided at the bottom of the sample outer chamber 102, and the third motor 10 being a right-angle reduction motor and provided with a worm, the worm gear being meshed with the worm gear. The top plate 29 and the bottom plate 30 are fixedly connected to the third frame via a support frame, forming a relatively stable frame structure that can effectively disperse and bear the weight of the sample outer chamber 102 and its internal sample airtight chamber 101 and other components, the worm gear being meshed with the worm gear, and can provide a larger transmission ratio, and can achieve a larger rotation adjustment of the sample outer chamber 102 by a smaller change in the motor speed, thereby facilitating precise control of the rotation speed and angle of the sample outer chamber 102 and accurately simulating different gravity environments.

[0041] It should be noted that the third rotating assembly can utilize a linear drive system or a belt drive system instead of a motor shaft rotational drive system. A linear drive system can alter the linear motion trajectory of the sample within the sample chamber 102 to produce an effect similar to centrifugal force, thereby partially simulating gravity. A belt drive system, on the other hand, controls the rotation of the sample chamber 102 through the linkage of a pulley and a shaft, similarly simulating the effects of gravity.

[0042] In some embodiments, the gravity simulation device further includes a first conductive slip ring 11, a second conductive slip ring 12, and a third conductive slip ring 13. The stator portion of the first conductive slip ring 11 is fixedly mounted on the third rod 16, and the rotor portion is fixedly connected to the seventh rod 20. The stator portion of the second conductive slip ring 12 is fixedly mounted on the sixth rod 19, and the rotor portion is fixedly mounted on the tenth rod 23. The stator portion of the third conductive slip ring 13 is fixedly mounted on the top plate 29, and the rotor portion is fixedly mounted on the rotating shaft. In a complex rotating structure, various components are in a dynamic rotational state, and the provision of the conductive slip rings ensures stable power and signal transmission. During the rotation of the various frames and the sample outer chamber 102, whether it is providing continuous power to electrical devices such as motors or transmitting various control and monitoring signals, transmission is not interrupted by tangling or pulling of the wiring due to rotation, ensuring that all functional modules of the entire gravity simulation device can operate normally at all times, maintaining the consistency and stability of the simulation experiment.

[0043] It should be noted that the number of paths in a conductive slip ring refers to the number of independent conductive pathways within it. Common paths include 2, 4, 6, 8, 12, 18, and 24, with some having as many as 128 or even more. In this embodiment, a first conductive slip ring with 12 conductive pathways is preferred, capable of meeting various signal and power transmission requirements. Two of these paths are allocated to the motor of the first conductive slip ring, and the remaining 10 paths are transmitted to the second conductive slip ring, two of which are allocated to the motor of the second conductive slip ring, and the remaining 8 paths are allocated to the third conductive slip ring and then introduced into the sample chamber. The third conductive slip ring is a key element in this embodiment. Two of its eight conductive pathways support heating, two support temperature detection, two support pressure detection, and the final two support Bluetooth information transmission. The number of paths in a conductive slip ring can be varied as needed, and the conductive pathways within the slip ring can also be used to implement other functions, such as vibration or acceleration.

[0044] It's also worth noting that wireless power transmission systems can replace traditional conductive slip rings. Wireless power transmission uses electromagnetic fields to transmit energy to the rotating sample cylinder, reducing slip ring wear and avoiding signal transmission issues caused by slip ring aging. Furthermore, optical couplers can be used for contactless signal transmission, further improving signal transmission stability and reliability.

[0045] In some embodiments, the gravity simulation device also includes a fixed seat 27, and a height-adjustable support foot 28 and a roller 26 are provided at the bottom of the fixed seat 27. The height-adjustable support foot 28 is provided adjacent to the roller 26. The height-adjustable support foot 28 is used to adjust the height of the fixed seat 27, and the roller 26 is used to assist in the movement of the gravity simulation device. The height-adjustable support foot 28 allows the horizontality of the entire gravity simulation device to be easily adjusted. During actual installation and use, since the ground may be uneven, by adjusting the height-adjustable support foot 28, the entire device can be ensured to be in a horizontal state. For example, when conducting a high-precision gravity simulation experiment, whether the device is horizontal or not will directly affect the accuracy of the simulation results. The adjustable support foot can accurately eliminate the impact caused by the uneven ground, laying a good foundation for the subsequent stable and accurate simulation of different gravity environments.

[0046] In some embodiments, three sample airtight cabins 101 are provided, which are evenly placed in the sample outer cabin 102, and the center of gravity of the sample outer cabin 102 coincides with the concentric points of the first frame, the second frame, and the third frame. When performing multi-dimensional rotation, since the center of gravity coincides with the concentric points of rotation, it is possible to minimize unstable factors such as eccentric vibration and shaking caused by the shift of the center of gravity, so that the sample outer cabin 102 can rotate in an extremely stable state, ensuring the accuracy and reliability of the simulated gravity environment. Whether it is a slow rotation in a simulated microgravity state or a high-speed rotation in a simulated overweight or other special situation, the simulation process will not be interfered with by the center of gravity problem, which helps to accurately create the expected gravity environment and provide a guarantee for accurately studying the characteristic changes of the sample under the corresponding gravity conditions.

[0047] In some embodiments, a temperature control device is provided in the sample outer chamber 102 and is filled with dry ice for temperature adjustment. The temperature control device itself can adjust the temperature within a certain range to meet a variety of conventional temperature setting requirements. The addition of dry ice further broadens the lower limit of the adjustable temperature. When dry ice sublimates, it can absorb a large amount of heat and create a lower temperature environment. In some special environmental scenarios, such as simulating the extremely cold environment of outer space, the low temperature conditions in polar regions, or conducting research on special materials and biological samples that require ultra-low temperature storage and testing, the low temperature environment created by dry ice can well reproduce these extreme low temperature conditions. Combined with the fine-tuning of the temperature by the temperature control device, the simulated environment is more realistic. The two are used in conjunction, so that the temperature in the sample outer chamber 102 can be flexibly adjusted within a wider range.

[0048] It's important to note that a thermoelectric cooler (Peltier element) can be considered as an alternative to dry ice cooling. This allows for more precise temperature control and rapid adjustment to varying temperature requirements, making it suitable for a wider temperature range. Furthermore, a liquid nitrogen cooling system can be used, using a direct flow of cryogenic gas to simulate extreme low-temperature environments, while simultaneously improving cooling efficiency and temperature control accuracy.

[0049] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A gravity simulation device, characterized in that: include A sample airtight chamber, comprising an upper cover and a storage chamber, wherein the upper cover is provided with a light transmission device capable of allowing some light to pass through, the storage chamber is used to accommodate samples and prefabricated gas, and the storage chamber can be sealed by the upper cover, and the storage chamber is connected to an air suction device capable of changing the pressure within the storage chamber; A sample outer cabin, the sample outer cabin is used to accommodate the sample airtight cabin, and a plurality of the sample airtight cabins are provided and evenly arranged in the sample outer cabin; A rotating assembly, wherein the rotating assembly can rotate the sample outer chamber to simulate gravity; the rotating assembly includes a first rotating assembly, a second rotating assembly and a third rotating assembly, the first rotating assembly includes a first motor and a first frame, the first frame includes a first rod, a second rod, a third rod and a fourth rod that are fixed in sequence and vertically connected, and the first rod, the second rod, the third rod and the fourth rod can be enclosed to form a rectangular frame, the first motor is fixed on the first rod, the second rotating assembly includes a second motor and a second frame, the second frame includes a fifth rod, a sixth rod, a seventh rod and an eighth rod that are fixed in sequence and vertically connected, and the fifth rod, the sixth rod, the seventh rod and the eighth rod can be enclosed to form a rectangular frame, the fifth rod is fixedly connected to the rotating shaft of the first motor, and the second motor is fixed The third rotating assembly is arranged on the eighth rod of the second frame, and includes a third motor and a third frame. The third frame includes a ninth rod, a tenth rod, an eleventh rod and a twelfth rod which are fixed in sequence and vertically connected, and the ninth rod, the tenth rod, the eleventh rod and the twelfth rod can be enclosed to form a rectangular frame, and the twelfth rod is fixedly connected to the output shaft of the second motor. The sample outer capsule is rotatably arranged inside the third frame and is driven by the third motor, wherein the first frame, the second frame and the third frame are concentrically arranged, and the center of gravity of the sample outer capsule coincides with the concentric point of the first frame, the second frame and the third frame, and the third motor drives the sample outer capsule to rotate, thereby generating additional centrifugal force outside the first frame and the second frame to achieve partial gravity simulation, and the speed of the third motor is adjustable; A top plate and a bottom plate, wherein the top plate and the bottom plate are fixedly connected to the third frame via a support frame, the sample outer chamber is rotatably disposed between the top plate and the bottom plate via a rotating shaft, and the sample airtight chamber is distributed circumferentially of the rotating shaft; It also includes a first conductive slip ring, a second conductive slip ring and a third conductive slip ring. The stator portion of the first conductive slip ring is fixedly arranged on the third rod, and the rotor portion is fixedly connected to the seventh rod; the stator portion of the second conductive slip ring is fixedly connected to the sixth rod, and the rotor portion is fixedly connected to the tenth rod; the stator portion of the third conductive slip ring is fixedly arranged on the top plate, and the rotor portion is fixedly arranged on the rotating shaft.

2. The gravity simulation device according to claim 1, characterized in that: The light transmission device is sapphire glass, which can transmit deep ultraviolet light and near infrared light, and the transmittance is not less than 90%.

3. The gravity simulation device according to claim 1, characterized in that: The sample airtight chamber also includes a base, a first flange is provided on the top of the base, a second flange is provided on the bottom of the containing chamber, the first flange is fixedly connected to the second flange, and a sealing ring is filled between the first flange and the second flange.

4. The gravity simulation device according to claim 3, characterized in that: The base is connected to a gas inlet and outlet pipe, which can be communicated with the holding cabin. A needle valve is provided on the gas inlet and outlet pipe, and the needle valve is used to control the opening and closing of the gas inlet and outlet pipe. The air suction device is a vacuum pump, and the end of the gas inlet and outlet pipe away from the base is connected to a three-way pipe. The three interfaces of the three-way pipe are respectively connected to the vacuum pump, the pressure gauge and the inflation pump, and a control valve is provided at each interface of the three-way pipe, and the control valve is used to control the opening and closing of the corresponding interface. The two ends of the inflation pump are respectively connected to the gas to be filled and the gas inlet and outlet pipe, wherein the vacuum pump is used to suck the gas in the holding cabin, the pressure gauge is used to monitor the pressure in the holding cabin, and the inflation pump is used to fill the gas to be filled into the holding cabin.

5. The gravity simulation device according to claim 1, characterized in that: A worm gear is provided at the bottom of the sample outer chamber, and the third motor is a right-angle reduction motor and is provided with a worm, and the worm is meshedly connected with the worm gear.

6. The gravity simulation device according to claim 1, characterized in that: It also includes a fixed base, and a height-adjusting support foot and a roller are provided at the bottom of the fixed base. The height-adjusting support foot is arranged adjacent to the roller, and the height-adjusting support foot is used to adjust the height of the fixed base. The second rod is fixedly connected to the fixed base, and the first rod is arranged perpendicular to the fixed base.

7. The gravity simulation device according to claim 1, characterized in that: There are three sample airtight cabins, which are evenly placed in the sample outer cabin.

8. The gravity simulation device according to claim 1, characterized in that: The sample outer chamber is provided with a temperature control device and is filled with dry ice so as to be able to adjust the temperature.

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