A device and method for simulating microwave-assisted rock breaking at different depths in a lunar base environment

Abstract

The present invention discloses a device and method for simulating microwave-assisted rock breaking at different depths in a lunar-based environment, comprising: a test cavity, a lunar-based simulation component, a microwave control component, a drilling component, a temperature control component, and a pressure control component; the test cavity is used to place the rock to be tested; the lunar-based simulation component is used to control the pressure in the test cavity to simulate the lunar surface environment; the microwave control component is used to generate microwaves and emit microwaves to the rock to be tested; the drilling component is used to drill into the rock to be tested for sampling; the temperature control component and the pressure control component are used to control the temperature and confining pressure of the rock to be tested. The device and method provided by the present invention can simulate the rock-breaking effect of the rock to be tested under different temperature and pressure conditions in the lunar-based environment after microwave-assisted rock breaking, and has strong scientific research value, providing technical support for the exploration and development of lunar resources and space.

Description

Technical Field

[0001] The present invention belongs to the fields of deep space exploration, lunar resource exploration and development, and geotechnical engineering, and particularly relates to a device and method for simulating microwave-assisted rock breaking at different depths in a lunar base environment. Background Art

[0002] Lunar soil, that is, the soil on the moon, although it is an easily obtainable substance on the moon, contains great scientific value for people on Earth. Studying lunar soil will help humans deepen their understanding of the moon itself, deepen their understanding of the formation and evolution of lunar soil, lunar crust, and the moon, and further understand important information such as the state, temperature, and material content of the moon, especially helium-3. In addition, since lunar soil separates the lunar solid lithosphere from the solar system space, when all substances in the universe reach the moon, such as meteorite impacts and cosmic radiation, they will first contact lunar soil, which contains a large amount of information about the relevant area.

[0003] However, the lunar soil and lunar rock samples obtained by current lunar base drilling technology have a relatively shallow burial depth, and the returned lunar samples are mainly lunar soil. Most scientific research also focuses on the lunar surface. These are only the surface parts of the moon, and the rock composition and material elements at the lunar core have not been studied. This is the main body of the moon and the main basis for studying the formation of the moon. This requires deep sampling of lunar rocks. According to the characteristics of existing lunar surface rocks, lunar rocks have a high drillability grade and strong brittleness, and the characteristics of lunar rocks are different at different depths. Generally speaking, the deeper the depth, the higher the temperature and pressure. Existing research shows that hard rock, as a typical brittle material, once cracks appear inside it, its strength will drop significantly. Therefore, specific technical means can be used to pretreat hard rock to make a large number of cracks appear inside it and then carry out drilling operations, thereby greatly improving the drilling efficiency and reducing the energy consumption of rock breaking. Microwave rock breaking can weaken hard rock by causing cracks in hard rock due to its high efficiency, selective heating, and no secondary pollution, drill core sampling, and improve the efficiency of lunar base rock breaking and core sampling. Therefore, microwave-assisted rock breaking is used for deep sampling research on the moon to lay a foundation for future lunar exploration. Summary of the Invention

[0004] In order to solve the deficiencies of the prior art and the above improvement requirements, the present invention provides a device and method for simulating microwave-assisted rock breaking at different depths in a lunar base environment, and its purpose is to realize the simulation of microwave-assisted rock breaking at different depths in a lunar base environment.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A device for simulating microwave-assisted rock breaking at different depths in a lunar base environment includes: a test cavity, a lunar base simulation component, a microwave control component, a drilling component, a temperature control component, and a pressure control component;

[0007] The test cavity is used to place the rock to be tested.

[0008] The lunar base simulation component is connected to the test cavity and is used to control the pressure in the test cavity to simulate the lunar surface environment. Generally, a vacuum device is used to evacuate the test cavity to a vacuum.

[0009] The microwave control component is arranged on the test cavity and is used to generate microwaves and emit microwaves to the rock to be tested, so that it is locally heated to generate cracks. After the cracks are generated, the physical structure strength of the rock becomes lower, which is convenient for drilling and sampling.

[0010] The drilling component is arranged on the test cavity and is used to drill into the rock to be tested for sampling.

[0011] The temperature control component is arranged in the test cavity and is used to control the temperature of the rock to be tested; the pressure control component is arranged in the test cavity and is used to control the confining pressure of the rock to be tested. By controlling the temperature and confining pressure of the rock to be tested, the occurrence environment of the rock at different depths in the lunar base environment is simulated.

[0012] Further: The microwave control component includes a microwave source, a waveguide, and a microwave emission disk connected in sequence. The microwave source is arranged outside the test cavity and is used to generate microwaves. The outer end of the waveguide is connected to the microwave source, and the other end extends into the test cavity and is connected to the microwave emission disk, which is used to conduct microwaves. The microwave emission disk is arranged above the rock to be tested and is used to emit microwaves to it.

[0013] Further: A telescopic device is arranged on the waveguide so that it can drive the microwave emission disk to move up and down; the telescopic device can make the length of the waveguide longer or shorter, thereby driving the microwave emission disk to move up and down. When descending, the microwave emission disk is close to the rock to be tested, making the microwave emission closer to the rock-breaking point and more accurate. After the microwave emission is completed, the microwave emission disk is retracted, which is convenient for the drilling component to drill and obtain rock samples.

[0014] Further: The drilling component includes a core drill bit for drilling into the rock to be tested for sampling and a drilling motor for driving the core drill bit to drill. The waveguide and the microwave emission disk are arranged in the center of the core drill bit.

[0015] Further: The device further includes a controller, and the controller is electrically connected to the lunar base simulation component, the microwave control component, the drilling component, the temperature control component, and the pressure control component.

[0016] Further: An infrared camera and an X-ray imaging device that are signal-connected to the controller are arranged in the test cavity.

[0017] Further: The temperature control component includes a heater, a cooler, and a temperature sensor arranged in the test cavity. The heater and the cooler heat or cool the rock to be tested by means of radiation or conduction.

[0018] Further: The pressure control component includes a plurality of pressure plates arranged on the side surface of the rock to be tested. A pressure sensor is arranged on the inner side surface of the pressure plate and is in contact with the rock to be tested, and the outer side surface is connected to the side wall of the test cavity through a hydraulic cylinder.

[0019] Further: A plurality of cross arms are arranged on both sides of the pressure plate in the up and down direction, and a cross groove passing through the cross arms of adjacent pressure plates is arranged between the cross arms.

[0020] Based on the above microwave-assisted rock breaking device for different depths in the simulated lunar base environment, the present invention also provides a method for microwave-assisted rock breaking at different depths in the simulated lunar base environment, including the following steps:

[0021] Step S1. Select rocks to be tested with different hardnesses and put them into the test cavity, and then close the lunar base simulation component of the test cavity and evacuate to simulate the lunar base environment.

[0022] Step S2. The temperature control component and the pressure control component adjust the temperature and pressure of the rock to be tested to simulate the occurrence environment of the rock to be tested at different depths.

[0023] Step S3. Turn on the microwave control component, adjust the position of the microwave emission disk to be close to the part of the rock to be tested, and perform microwave heating.

[0024] Step S4. After the microwave-assisted rock breaking is completed, turn off the microwave control component, and lift the microwave emission disk away from the rock breaking surface through the telescopic device.

[0025] Step S5. According to the hardness, mechanical properties and composition of the rock to be tested at different drilling depths, adjust the parameters of the drilling tool, including impact frequency, impact amplitude, feed rate and rotation speed, etc.

[0026] Step S6. Turn on the drilling component and perform coring operation to obtain the target core.

[0027] Step S7. Turn off the power supply and check the equipment; repeat the above steps for the next operation.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. The microwave-assisted rock breaking device for different depths in the simulated lunar base environment provided by the present invention adopts a vacuum test cavity, a drilling rig, a temperature and pressure control component. The vacuum test cavity simulates the lunar base vacuum environment, and the temperature and pressure control component controls the temperature and pressure of the rock to be tested. The deeper the rock depth, the higher the temperature and pressure. Different temperatures and pressures are set respectively in multiple tests to simulate the environment of the rock at different depths, and then a high-efficiency rock breaking test of microwave combined with the drilling rig is carried out, and the simulation effect is good.

[0030] 2. The microwave emission disc of the present invention is arranged at the center of the coring bit, and the microwave emission surface is close to the rock to be measured opposite to the coring bit, with high microwave heating efficiency;

[0031] 3. The present invention is provided with a telescopic device that can make the length of the waveguide tube longer or shorter, thereby driving the microwave emission disc to rise and fall, making the microwave emission closer to the rock-breaking point for more accurate emission. After the microwave emission is completed, the microwave emission disc is retracted, facilitating the drilling assembly to drill and obtain rock samples;

[0032] 4. The method for microwave-assisted rock breaking at different depths in a simulated lunar base environment provided by the present invention simulates the rock-breaking effects of rocks to be measured at different depths in a high-vacuum lunar environment under different temperature and pressure conditions after microwave-assisted rock breaking, and realizes real-time data collection, with strong scientific research value, providing technical support for the exploration and development of lunar resources and space. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 is the structural schematic diagram of the present invention;

[0035] Figure 2 is the schematic diagram of the microwave control component;

[0036] Figure 3 is the schematic diagram of the drilling assembly and the microwave control component;

[0037] Figure 4 is the three-dimensional view of the pressure control component;

[0038] Figure 5 is the electrical connection schematic diagram of the present invention.

[0039] The description of the reference numerals in the drawings is as follows:

[0040] 1. Microwave control component; 2. Test cavity; 3. Tray; 4. Pressure control component; 41. Pressing plate; 42. Pressure sensor; 43. Hydraulic cylinder; 44. Cross arm; 45. Cross slot; 5. Drilling assembly; 51. Coring bit; 52. Drilling motor; 6. Temperature control component; 7. Microwave source; 71. Power supply; 72. Transformer; 73. Control circuit; 8. Waveguide tube; 9. Microwave emission disc; 10. Telescopic device; 11. Infrared camera; 12. X-ray shooting device; 13. Controller; 14. Lunar base simulation component; 15. Sealing gate; 16. Rock to be measured. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0043] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] As Figures 1 - 5 shown, a microwave-assisted rock breaking device for simulating different depths of the lunar base environment includes: a test cavity 2, a lunar base simulation component 14, a microwave control component 1, a drilling component 5, a temperature control component 6, and a pressure control component 4;

[0045] Among them, the test cavity 2 is used to place the rock to be tested 16. In a specific implementation, as an embodiment, as Figure 1 a tray 3 is arranged in the test cavity 2 to place the rock to be tested 16;

[0046] Among them, the lunar base simulation component 14 is connected to the test cavity 2 and is used to control the pressure in the test cavity 2 to simulate the lunar surface environment. Generally, a vacuum device is used to evacuate the test cavity 2 into a vacuum. This requires that the test cavity 2 adopt a closed structure and is generally designed according to the standards of a pressure vessel to be able to withstand the huge negative pressure brought by the vacuum and maintain the seal; at the same time, in order to facilitate the taking and placing of the rock to be tested 16, a closing gate 15 is arranged on one side of the test cavity 2.

[0047] Among them, the microwave control component 1 is arranged on the test cavity 2 and is used for generating microwaves and emitting microwaves to the rock to be tested 14, so that its local temperature rises to generate cracks. After the cracks are generated, the physical structure strength of the rock becomes lower, which is convenient for drilling and sampling;

[0048] Among them, the drilling component 5 is arranged on the test cavity 2 and is used for drilling the rock to be tested for sampling; since the present invention is mainly for deep drilling, the drilling direction is mainly downward, so both the drilling component 5 and the microwave control component 1 are arranged above the test cavity 2. In order to maintain the vacuum environment of the test cavity 2, a sealing device is arranged at the connection between the drilling component 5 and the test cavity 2.

[0049] Among them, the temperature control component 6 is arranged in the test cavity 2 and is used for controlling the temperature of the rock to be tested; the pressure control component 4 is arranged in the test cavity 2 and is used for controlling the confining pressure of the rock to be tested, and the occurrence environment of the rock at different depths in the lunar base environment is simulated by controlling the temperature and confining pressure of the rock to be tested.

[0050] As Figure 2 shown, the microwave control component 1 includes a microwave source 7, a waveguide 8, and a microwave emission disk 9 that are connected in sequence. The microwave source 3 is arranged outside the test cavity 2 and is used for generating microwaves. The microwave source 7 includes a power supply 71, a transformer 72, and a control circuit 73. The power supply 71 obtains electric power from the outside, then is stepped up or down by the transformer 72, and then is controlled and converted into microwaves by the control circuit 73; the outer end of the waveguide 8 is connected to the microwave source 7, and the other end extends into the test cavity 2 and is connected to the microwave emission disk 9 for conducting microwaves. The microwave emission disk 9 is arranged above the rock to be tested 16 and is used for emitting microwaves to it.

[0051] As Figure 3 shown, a telescopic device 10 is arranged on the waveguide 8, so that it can drive the microwave emission disk 9 to move up and down. The telescopic device 10 can make the length of the waveguide longer or shorter, thereby driving the microwave emission disk 9 to move up and down. When descending, the microwave emission disk 9 is close to the rock to be tested 16, so that the microwave emission is closer to the rock-breaking point and more accurate. After the microwave emission is completed, the microwave emission disk 9 is retracted, which is convenient for the drilling component 5 to drill and obtain rock samples. The drilling component 5 includes a core drill bit 51 for drilling the rock to be tested for sampling 16 and a drilling motor 52 for driving the core drill bit to drill. Due to its core-taking structure, the cross-section of the core drill bit 51 is circular, so that it does not damage the central rock when drilling and directly brings out the rock sample when taking out. This technology is widely used in rock sampling in mines and geological exploration; in order to improve the effect of microwave rock breaking, the waveguide 8 and the microwave emission disk 9 are arranged at the center of the core drill bit 51. The microwaves emitted by the microwave emission disk 9 are radially emitted from the inside to the outside. Therefore, the microwave emission disk 9 is arranged at the center of the core drill bit 51 just to heat the rock opposite to the core drill bit 51 to reduce its strength and facilitate drilling and sampling.

[0052] As Figure 5 shown, in order to automatically control the device, reduce the operation amount of operators and improve the control accuracy, the device provided by the present invention further includes a controller 13, which is electrically connected to the lunar base simulation component 14, the microwave control component 1, the drilling component 5, the temperature control component 6, and the pressure control component 4, receives signals sent by these components and also sends control signals to them. The controller 13 can be a processor or a collective term for multiple processing elements. For example, the processor can be a general-purpose central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application solution, such as: one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). In a specific implementation, as an embodiment, the processor can include one or more CPUs. The controller 13 can also include a memory. Among them, the memory can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM), or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0053] In order to monitor the fragmentation of the rock to be tested during the experiment, an infrared camera 11 and an X-ray imaging device 12 that are signal-connected to the controller 13 are arranged in the test cavity 2, and the rock fragmentation effect after microwave-assisted rock breaking is monitored in real time by these two sensors and sent to the controller 13, which is convenient for scientific research personnel to observe and store.

[0054] Since the moon has no atmosphere, the surface temperature of the moon is 127°C during the day and -183°C at night. In order to simulate the environmental characteristics of ultra-high temperature and ultra-low temperature on the lunar surface, and at the same time simulate the environmental characteristics of different temperatures at different depths of rocks, the temperature control component 6 includes a heater, a cooler and a temperature sensor arranged in the test cavity. The heating or cooling is controlled by the controller 13, and the temperature signal is fed back by the temperature sensor to monitor the temperature of the rock to be tested. Since the device of the present invention simulates a vacuum state for the lunar base environment, the conduction of cold and heat cannot adopt the form of convection. Therefore, the heater and cooler of the present invention use the form of conduction or radiation to heat or cool the rock to be tested. In this embodiment, radiation conduction is adopted, and the heater and cooler are arranged on the inner wall of the test cavity 2 to radiate heat to the rock to be tested 16 to heat or cool it as a whole.

[0055] As Figure 4 shown, in order to apply a set pressure to the rock to be tested to simulate the occurrence environment of the rock to be tested at different depths, the pressure control component 4 includes four pressure plates 41 arranged on the side of the rock to be tested. A pressure sensor 42 is arranged on the inner side of the pressure plate 41 and contacts the rock to be tested. The outer side is connected to the side wall of the test cavity through a hydraulic cylinder 43. A plurality of cross arms 44 are arranged on both sides of the pressure plate 41 in the up and down direction. A cross groove 45 passing through the cross arms 44 of adjacent pressure plates is arranged between the cross arms 44. In this way, the four pressure plates 41 can cross and close to pressurize the rock to be tested. Due to the internal space limitation of the four pressure plates 41, the rock to be tested 16 is processed into a cube shape before being placed in the test cavity 2, and each side is facing a pressure plate 41 when placed.

[0056] In other embodiments, the heating of the rock to be tested 16 can also adopt the form of conduction. In this embodiment, heat conduction tubes are arranged on the end faces of the tray 3 and the pressure plate 41 facing the rock to be tested 16, and a heating or cooling medium is introduced into the heat conduction tubes to heat or cool in the form of conduction.

[0057] Based on the above microwave-assisted rock breaking device for simulating different depths of the lunar base environment, the present invention also provides a method for microwave-assisted rock breaking for simulating different depths of the lunar base environment, including the following steps:

[0058] Step S1. Select rocks 16 to be tested with different hardnesses and place them in the test cavity 2, then seal the test cavity 2, and the lunar base simulation component evacuates to simulate the lunar base environment;

[0059] Step S2. The temperature control component 6 and the pressure control component 4 adjust the temperature and pressure of the rock to be tested 16 to simulate the occurrence environment of the rock to be tested at the set depth of this test;

[0060] Step S3. Turn on the microwave control component 1, and adjust the position of the microwave emission disk 9 close to the part of the rock to be tested 16 through the telescopic device 10 for microwave heating;

[0061] Step S4. After the microwave-assisted rock breaking is completed, turn off the microwave control component 1, and lift the microwave emission disk away from the rock breaking surface through the telescopic device 10;

[0062] Step S5. According to the hardness, mechanical properties, and composition of the rock to be measured 16 at different drilling depths, adjust the parameters of the drilling tool, including impact frequency, impact amplitude, feed rate, rotation speed, and other parameters;

[0063] Step S6. Turn on the drilling component 5 to perform a coring operation to obtain the target core;

[0064] Step S7. Turn off the power supply and check the equipment; repeat the above steps for the next operation.

[0065] For the next test, in Step S2, the temperature control component 6 and the pressure control component 4 adjust the temperature and pressure of the rock to be measured 16, increase the temperature and pressure, simulate the occurrence environment of the rock to be measured at a deeper depth, and test the physical properties and drilling effect of the rock after being irradiated by microwaves at a deeper depth.

[0066] During the entire test process, the parameter setting and component control are all completed by the controller 13. Before the test, the tester inputs parameters such as the drilling motor, temperature, pressure, and time into the controller 13. The entire test process is controlled and completed by the controller 13, and the data and image acquisition of temperature, pressure, etc. during the test process are all stored in the controller 13.

[0067] In Step S2, since the rock has a low thermal conductivity and heats up slowly, heating it after being placed in the test cavity 2 will affect the overall implementation efficiency. It can be selected to preheat the rock to be measured 16 in a heating furnace to the test temperature before placing it in the test cavity 2, and place it in the test cavity 2 when the test is needed, which can greatly shorten the test time.

[0068] In Step S2, since four pressure plates 41 are used in this embodiment for simulated pressurization, the rock to be measured 16 is processed into a cube shape before being placed in the test cavity 2, and each side is facing a pressure plate 41 when placed. In other embodiments, such as using six pressure plates 41 for simulated pressurization, the more pressure plates there are, the more stable and uniform the pressurization is, and the test effect is good, but the test cost is high and the structure is complex. The rock to be measured 16 is processed into a hexagonal prism shape before being placed in the test cavity 2, and each side is facing a pressure plate 41 when placed.

[0069] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A microwave-assisted rock-breaking device for simulating different depths of the lunar base environment, characterized in that, Comprising: A test cavity, a lunar base simulation component, a microwave control component, a drilling component, a temperature control component, and a pressure control component; The test cavity is used to place the rock to be tested; The lunar base simulation component is connected to the test cavity and is used to control the pressure in the test cavity to simulate the lunar surface environment; The microwave control component is arranged on the test cavity and is used to generate microwaves and emit microwaves to the rock to be tested; The drilling component is arranged on the test cavity and is used to drill into the rock to be tested for sampling; The temperature control component is arranged in the test cavity and is used to control the temperature of the rock to be tested, and the pressure control component is arranged in the test cavity and is used to control the confining pressure of the rock to be tested; the occurrence environment of the rock at different depths in the lunar base environment is simulated by controlling the temperature and confining pressure of the rock to be tested; The microwave control component includes a microwave source, a waveguide, and a microwave emission disk connected in sequence. The microwave source is arranged outside the test cavity to generate microwaves. The outer end of the waveguide is connected to the microwave source, and the other end extends into the test cavity and is connected to the microwave emission disk to conduct microwaves. The microwave emission disk is arranged above the rock to be tested to emit microwaves to it; a telescopic device is arranged on the waveguide to enable it to lift and lower the microwave emission disk; An infrared camera and an X-ray imaging device are arranged in the test cavity and are used to photograph and record the fragmentation and drilling conditions of the rock to be tested during the test process.

2. The microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to claim 1, characterized in that: The drilling component includes a core drill bit for drilling into the rock to be tested for sampling and a drilling motor for driving the core drill bit to drill. The waveguide and the microwave emission disk are arranged at the center of the core drill bit.

3. The microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to claim 1, characterized in that: The device further includes a controller, and the controller is electrically connected to the lunar base simulation component, the microwave control component, the drilling component, the temperature control component, and the pressure control component.

4. The microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to claim 1, characterized in that: The temperature control component includes a heater, a cooler, and a temperature sensor arranged in the test cavity. The heater and the cooler heat or cool the rock to be tested by means of radiation or conduction.

5. The microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to claim 1, characterized in that: The pressure control component includes a plurality of pressure plates arranged on the side of the rock to be tested. A pressure sensor is arranged on the inner side of the pressure plate and is in contact with the rock to be tested, and the outer side is connected to the side wall of the test cavity through a hydraulic cylinder.

6. The microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to claim 5, characterized in that: A plurality of cross arms are arranged on both sides of the pressure plate in the up and down direction, and a cross groove passing through the cross arms of adjacent pressure plates is arranged between the cross arms.

7. A method for microwave-assisted rock-breaking at different depths in a simulated lunar base environment based on the microwave-assisted rock-breaking device for simulating different depths of the lunar base environment according to any one of claims 1 to 6, characterized in that: Including the following steps: Step S1. Select rocks to be tested with different hardnesses and place them in the test cavity, and then close the test cavity. The lunar base simulation component evacuates the air to simulate the lunar base environment; Step S2. The temperature control component and the pressure control component adjust the temperature and pressure of the rock to be tested to simulate the occurrence environment of the rock to be tested at different depths; Step S3. Turn on the microwave control component, adjust the position of the microwave emission disk to be close to the part of the rock to be tested, and perform microwave heating; Step S4. After the microwave-assisted rock breaking is completed, turn off the microwave control component, and lift the microwave emission disk away from the rock breaking surface through the telescopic device; Step S5. According to the hardness, mechanical properties, and composition of the rock to be tested at different drilling depths, adjust the parameters of the drilling tool, including the impact frequency, impact amplitude, feed rate, and rotation speed parameters; Step S6. Turn on the drilling assembly to perform coring operation to obtain the target core; Step S7. Turn off the power supply and check the equipment; repeat the above steps for the next operation.

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