Gravity simulation device

Abstract

The invention discloses a gravity simulation device, and relates to the technical field of special environment simulation, the gravity simulation device comprises a sample airtight cabin, a sample outer cabin and a rotating assembly, the sample airtight cabin comprises an upper cover and a containing cabin, the upper cover comprises a light transmission device, the light transmission device can allow part of light to pass through, and the containing cabin is used for containing a sample and prefabricated gas; the accommodating cabin can be sealed by the upper cover and is connected with an air suction device, so that the pressure in the accommodating cabin can be changed; the sample outer cabin is used for accommodating the sample airtight cabins, and the plurality of sample airtight cabins are uniformly arranged in the sample outer cabin; the rotating assembly is rotationally connected with the sample outer cabin and is used for simulating gravity. According to the invention, self counterweight balance can be realized, a special environment can be fully simulated, and an experiment result is ensured.

Description

Technical Field

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

[0002] At present, in the field of special environment simulation, the dual-axis cyclotron is widely used to simulate microgravity, and there are relatively few systems that simulate gravity. Other countries have developed some gravity simulation systems with sample chambers. When the samples are loaded into the sample chamber, counterweights are needed to maintain the balance of the sample chamber, which makes debugging more difficult. Moreover, the current environmental simulation system only fully simulates gravity, and there is no simulation of pressure, atmosphere, and light conditions, resulting in insufficient simulation of the experimental environment, which affects the 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: The present invention provides a gravity simulation device, comprising A sample airtight cabin, the sample airtight cabin comprising an upper cover and a receiving cabin, the upper cover being provided with a light transmission device capable of allowing some light to pass through, the receiving cabin being used to receive samples and prefabricated gas, and the receiving cabin being able to be sealed by the upper cover, and the receiving cabin being connected to an air suction device capable of changing the pressure in the receiving cabin; A sample outer chamber, the sample outer chamber is used to accommodate the sample airtight chamber, and a plurality of the sample airtight chambers are provided and evenly arranged in the sample outer chamber; A rotating component is provided, wherein the rotating component can rotate the sample outer chamber to simulate gravity.

[0006] Preferably, the light-transmitting device is sapphire glass, which can transmit deep ultraviolet light and near infrared light, and the transmittance is not less than 90%.

[0007] 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.

[0008] 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 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, 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 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.

[0009] 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 that are fixed in sequence and vertically connected, and the first rod, the second rod, the third rod and the fourth rod can be surrounded 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 surrounded to form a rectangular frame. 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 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, 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 driven by the third motor, wherein the first frame, the second frame and the third frame are concentrically set.

[0010] Preferably, it also includes 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 arranged between the top plate and the bottom plate via a rotating shaft, and a worm gear is arranged 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 gear is meshingly connected to the worm gear.

[0011] Preferably, it 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.

[0012] Preferably, it also includes a fixed seat, and a height-adjusting support foot and a roller are arranged at the bottom of the fixed seat, the height-adjusting support foot is arranged adjacent to the roller, 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.

[0013] Preferably, three sample airtight cabins are provided and 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.

[0014] 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.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: 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, and change the incident light source according to the simulation of different environments to provide different light radiation conditions. The containing cabin is used to contain 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 contain the sample airtight cabin, and a plurality of 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

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the sample airtight cabin in some embodiments of the present invention; Figure 2 It is a schematic diagram of the structure of the gravity simulation system in some embodiments of the present invention; Figure 3 Schematic diagram of a sample outer cylinder disposed on a third rotating assembly in some embodiments of the present invention.

[0018] 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-fixed seat; 28-height adjustment support foot; 29-top plate; 30-bottom plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] The purpose of the present invention is to provide a gravity simulation device to solve the problems existing in the prior art, to achieve self-weight balance, and to fully simulate special environments to ensure experimental results.

[0021] 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.

[0022] like Figure 1-Figure 3As shown, the present invention provides a gravity simulation device, including a sample airtight cabin 101, a sample outer cabin 102 and a rotating assembly. The sample airtight cabin 101 includes an upper cover 1 and a receiving cabin 3. The upper cover 1 is provided with a light transmission device 2, which can allow part of the light to pass through. The receiving cabin 3 is used to receive samples and prefabricated gases, and the receiving cabin 3 can be sealed by the upper cover 1. The receiving cabin 3 is connected to an air suction device, which can change the pressure in the receiving cabin 3. The sample outer cabin 102 is used to receive the sample airtight cabin 101, and the sample airtight cabin 101 is provided with a plurality of samples and evenly arranged in the sample outer cabin 102. The rotating assembly can rotate the sample outer cabin 102 to simulate gravity. The light transmission device 2 of the upper cover 1 can allow part of the light to pass through, and can change the incident light source according to the simulation requirements, so as to provide different light radiation conditions. The incident light source can be a light plate set on the top of the sample outer cabin 102. The light plate can adjust the light intensity and light cycle according to the experimental requirements to simulate the light conditions on the surfaces of different planets, 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 provide different pressure conditions. Setting a plurality of sample airtight chambers 101 evenly arranged in the sample outer chamber 102 can not only carry out multiple parallel experiments at one time to improve the experimental efficiency, but also achieve self-balance through reasonable and even distribution, avoiding the use of counterweights, which can simplify the device structure, reduce the complex operations such as installation and debugging and potential mechanical failure risks caused by counterweights, and ensure 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.

[0023] 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.

[0024] In some embodiments, the light transmission device 2 is sapphire glass. Sapphire glass is highly transparent in a wide wavelength range from ultraviolet to near infrared, which can effectively reduce the absorption and scattering of light, allowing light to pass through with higher transmittance and lower loss, thereby ensuring the light transmission efficiency of the light transmission device. Sapphire glass has excellent wear resistance and scratch resistance. Even in harsh use environments or when frequently in contact with other objects, it can maintain the smoothness and transparency of the surface, and is not prone to scratches and wear, thereby extending the service life of the light transmission device and reducing the risk of optical performance degradation due to surface damage. It should be noted that the light transmission device can also use GE216 quartz glass. GE216 quartz glass can transmit deep ultraviolet light and near infrared light, and the transmittance is not less than 90%, which can meet the simulation requirements of the irradiation environment of the surface of planets such as Mars. GE216 quartz glass can transmit deep ultraviolet light and near infrared light, has a wide spectrum of transmittance, and can simulate the full spectrum or specific band light environment. For example, when simulating the radiation environment on the surface of planets such as Mars, the sunlight received by the surface of Mars contains multiple bands of light from ultraviolet to infrared. GE216 quartz glass allows the light of the relevant bands to pass through, thereby accurately reproducing the real lighting conditions on Mars, which helps researchers accurately study the various characteristic changes of detector materials, biological samples, etc. under the actual radiation environment of Mars. 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.

[0025] In some embodiments, the sample airtight chamber 101 also includes a base, a first flange 5 is provided on the top of the base, a second flange 4 is provided on the bottom of the containing chamber 3, the first flange 5 is fixedly connected to the second flange 4, and a sealing ring is filled between the first flange 5 and the second flange 4, and the sealing ring is preferably an EPDM rubber ring. The flange connection is used to ensure that the containing chamber 3 is tightly combined with the base, and will not be easily loosened or separated due to external forces such as vibration and shaking, thereby ensuring the integrity and safety of the entire airtight chamber structure. The flange adopts KF16 or KF25 flange, and the containing chamber 3 is made of LY16 aluminum material. The spot welding and rolling welding performance of LY16 aluminum material is good, the tendency to form cracks is not significant, and the weld has good air tightness. The material of the base is 304 stainless steel. An EPDM rubber O-ring (EPDM O-ring (ethylene-propylene-diene rubber, hydrogen peroxide cured)) is used between the flanges to ensure the airtightness of the containing chamber 3.

[0026] 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.

[0027] 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 storage 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. 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. 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 3, 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 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, and the sample airtight chamber completes the gas and pressure settings.

[0028] It should be noted that the vacuum pump uses a German Chemvak vacuum pump to simulate the atmospheric pressure on the surface of Mars, and the pressure gauge uses a PRV101N Pirani vacuum transmitter to monitor the pressure. PRV101N uses the Pirani vacuum measurement principle and can monitor pressures from 0.01 to 100 kPa, covering a measurement range of 7 orders of magnitude. It is equipped with 485 data communication as standard, which can realize data collection and automatic pressure control.

[0029] 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, connect the sample airtight cabin to the vacuum pump, pressure gauge and inflation pump through a three-way pipe, open the control valve of the vacuum pump interface, open the control valve of the pressure gauge interface, and keep the control valve of the inflation pump interface closed. The vacuum pump starts working to reduce the pressure of the sample airtight cabin to the standard value (100 or 50 Pa), close the needle valve, the vacuum pump interface control valve and the pressure gauge interface control valve in turn, remove the three-way pipe, and place the sample airtight cabin in a separate indoor environment for 24 hours. Then, connect the three-way pipe to the sample airtight cabin, open the vacuum pump interface control valve, open the press interface control valve, and keep the inflation pump interface control valve closed. The vacuum pump works to reduce the air pressure in the containment cabin to 0.001 Pa, close the vacuum pump interface control valve and open the needle valve in turn, and use a pressure gauge to read the pressure value. If the deviation does not exceed 1%, it is considered that the pressure-maintaining capacity of the airtight cabin meets the requirements.

[0030] It should be noted that a compressed air system or a gas replacement system can be used instead of a vacuum pump to control the pressure of the airtight cabin. For example, a compressed air system can achieve the same pressure regulation effect by precisely controlling the pressure and flow of compressed air, while a gas replacement system provides a stable gas environment by replacing the gas composition in the cabin. In addition, the use of a gas adsorption device (such as molecular sieves or activated carbon) can also adjust the gas composition to simulate the gas conditions in different environments.

[0031] 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 arranged 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 arranged 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 which are fixed and vertically connected in sequence, the twelfth rod 25 is vertically 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 arranged 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 by three motors respectively, rotation in multiple dimensions can be achieved. This multi-dimensional rotation capability can simulate extremely complex changes in the gravity environment. 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, and gravity conditions similar to or higher than that of the earth can be simulated. At low speeds, the centrifugal force decreases, which is 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 simulation.

[0032] It should be noted that the first rotating assembly and the second rotating assembly can consider using a universal joint structure to replace the motor shaft linkage to achieve multi-directional rotation of the frame. The universal joint allows the multi-axis rotation of the sample to be achieved through the mechanical linkage of the frame without a vertical motor shaft. In addition, the use of magnetic bearings can also replace the rotation method of the mechanical shaft, which can reduce friction and noise, while improving the stability and accuracy of the system.

[0033] 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 are fixedly connected to the third frame through a support frame, the sample outer chamber 102 is rotatably arranged between the top plate 29 and the bottom plate 30 through a rotating shaft, the rotating shaft is made of an aluminum alloy shaft, a worm gear is arranged at the bottom of the sample outer chamber 102, and the third motor 10 is a right-angle reduction motor and is provided with a worm, and the worm gear is meshedly connected with the worm gear. The top plate 29 and the bottom plate 30 are fixedly connected to the third frame through a support frame to form a relatively stable frame structure, which can effectively disperse and carry the weight of the sample outer chamber 102 and its internal sample airtight chamber 101 and other components, the worm gear is meshedly connected with the worm gear, and can provide a larger transmission ratio, and can realize a larger rotation adjustment of the sample outer chamber 102 through a smaller change in the motor speed, so as to facilitate the precise control of the rotation speed and angle of the sample outer chamber 102, and accurately simulate different gravity environments.

[0034] It should be noted that the third rotating assembly can use a linear drive system or a belt drive system to replace the rotational drive mode of the motor shaft. The linear drive system can produce an effect similar to centrifugal force by changing the linear motion trajectory of the sample in the sample outer chamber 102, thereby realizing partial gravity simulation. The belt drive system controls the rotation of the sample outer chamber 102 through the linkage between the pulley and the shaft, which can also realize the simulation of the gravity effect.

[0035] 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, wherein the stator portion of the first conductive slip ring 11 is fixedly arranged 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 connected to the sixth rod 19, and the rotor portion is fixedly connected to the tenth rod 23; the stator portion of the third conductive slip ring 13 is fixedly arranged on the top plate 29, and the rotor portion is fixedly arranged on the rotating shaft. In a complex rotating structure, each component is in a dynamic rotating state, and the setting of the conductive slip ring can ensure stable transmission of power and signals. During the rotation of different frames and the sample outer cabin 102, whether it is to continuously supply power to electrical equipment such as motors, or to transmit various control signals, monitoring signals, etc., the transmission will not be interrupted due to line entanglement and pulling caused by rotation, thereby ensuring that each functional module of the entire gravity simulation device can operate normally at all times and maintain the continuity and stability of the simulation experiment.

[0036] It should be noted that the number of paths of a conductive slip ring refers to the number of independent conductive paths inside it. Common paths include 2, 4, 6, 8, 12, 18, 24, etc. There are also conductive slip rings with up to 128 or even more paths. In this embodiment, it is preferred that the first conductive slip ring has 12 conductive paths, which can meet the transmission requirements of various signals and power supplies, of which 2 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, of which 2 paths 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 outer chamber. The third conductive slip ring is a more important conductive slip ring in this embodiment. Two of the 8 conductive paths of the third conductive slip ring are used to support heating, two are used to support temperature detection, two are used to support pressure detection, and the last two are used to support Bluetooth information transmission. The number of paths of the conductive slip ring can be changed as needed, and the conductive paths in the conductive slip ring can also be determined as needed to realize other functions, such as vibration, acceleration, etc.

[0037] Another thing that needs to be explained is that a wireless power transmission system can be used to replace the traditional conductive slip ring. Wireless power transmission transmits energy to the rotating sample cylinder through an electromagnetic field, reducing the wear of the slip ring and avoiding signal transmission problems caused by slip ring aging. In addition, optical couplers can be used to achieve non-contact transmission of signals, further improving the stability and reliability of signal transmission.

[0038] In some embodiments, the gravity simulation device also includes a fixed seat 27, and a height-adjusting support foot 28 and a roller 26 are arranged at the bottom of the fixed seat 27. The height-adjusting support foot 28 is arranged adjacent to the roller 26. The height-adjusting support foot 28 is used to adjust the height of the fixed seat 27, and the roller 26 is used to assist the movement of the gravity simulation device. The height-adjusting 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-adjusting support foot 28, it can be ensured that the entire device is 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.

[0039] 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, unstable factors such as eccentric vibration and shaking caused by the center of gravity offset can be minimized, 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 center of gravity problem will not interfere with the simulation process, 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.

[0040] In some embodiments, a temperature control device is provided in the sample outer cabin 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 together so that the temperature in the sample outer cabin 102 can be flexibly adjusted within a wider range.

[0041] It should be noted that you can consider using a thermoelectric cooler (Peltier element) to replace the dry ice cooling method. Thermoelectric coolers can control the temperature more accurately and can be quickly adjusted according to different temperature requirements, and are suitable for a wider temperature range. In addition, a liquid nitrogen cooling system can also be used to simulate an extreme low temperature environment through the direct flow of cryogenic gas, while improving cooling efficiency and temperature control accuracy.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A gravity simulation device, characterized in that: include A sample airtight cabin, the sample airtight cabin comprising an upper cover and a receiving cabin, the upper cover being provided with a light transmission device capable of allowing some light to pass through, the receiving cabin being used to receive samples and prefabricated gas, and the receiving cabin being able to be sealed by the upper cover, and the receiving cabin being connected to an air suction device capable of changing the pressure in the receiving cabin; A sample outer chamber, the sample outer chamber is used to accommodate the sample airtight chamber, and a plurality of the sample airtight chambers are provided and evenly arranged in the sample outer chamber; A rotating component is provided, wherein the rotating component can rotate the sample outer chamber to simulate gravity.

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 arranged on the top of the base, a second flange is arranged 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 with a gas inlet and outlet pipe, and the gas inlet and outlet pipe can be communicated with the storage cabin. A needle valve is arranged 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. The end of the gas inlet and outlet pipe away from the base is connected with a three-way pipe. The three interfaces of the three-way pipe are respectively connected with the vacuum pump, the pressure gauge and the inflation pump, and a control valve is arranged at each interface of the three-way pipe. 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 with 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.

5. The gravity simulation device according to claim 1, characterized in that: 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 A rectangular frame is formed, 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 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, 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 driven by the third motor, wherein the first frame, the second frame and the third frame are concentrically set.

6. The gravity simulation device according to claim 5, characterized in that: It also includes a top plate and a bottom plate, which are fixedly connected to the third frame through a support frame, and the sample outer chamber is rotatably arranged between the top plate and the bottom plate through a rotating shaft, and a worm gear is arranged 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 meshingly connected with the worm gear.

7. The gravity simulation device according to claim 6, characterized in that: It also includes 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.

8. The gravity simulation device according to claim 5, characterized in that: It also includes a fixed seat, the bottom of which is provided with a height-adjusting support foot and a roller, the height-adjusting support foot is arranged adjacent to the roller, 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.

9. The gravity simulation device according to claim 5, characterized in that: There are three sample airtight cabins, which 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.

10. The gravity simulation device according to claim 1, characterized in that: 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.

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