CN116403465B - Visual system and method for simulating complex lunar surface drilling - Google Patents
Visual system and method for simulating complex lunar surface drilling Download PDFInfo
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- CN116403465B CN116403465B CN202310681156.XA CN202310681156A CN116403465B CN 116403465 B CN116403465 B CN 116403465B CN 202310681156 A CN202310681156 A CN 202310681156A CN 116403465 B CN116403465 B CN 116403465B
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- 238000005553 drilling Methods 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000000007 visual effect Effects 0.000 title claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 135
- 238000004088 simulation Methods 0.000 claims abstract description 19
- 238000012800 visualization Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 238000003384 imaging method Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 238000007794 visualization technique Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 12
- 230000003993 interaction Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Abstract
The application belongs to the technical field of lunar exploration and geological drilling, in particular relates to a visual system and method for simulating complex lunar surface drilling, and aims to solve the problems that in the prior art, the internal condition of lunar soil cannot be observed, internal detail parameters are lacking, the interaction mechanism of lunar soil-drilling tools is difficult to intuitively reveal in real time, and the drilling process is guided. The application comprises the following steps: test system base, rotation type CT system, temperature pump, vacuum pump, air compressor machine, drilling system, simulation lunar soil bucket, constant weight on bit stable system, comprehensive control platform, through rotation type CT system to the inside formation of image of simulation lunar soil bucket, the situation of real-time supervision drill bit. The application has the advantages of intuitionism, visualization, clear information and the like, and is expected to provide theoretical support for drilling complex stratum on the lunar surface.
Description
Technical Field
The application belongs to the technical field of lunar exploration and geological drilling, and particularly relates to a visual system and method for simulating complex lunar surface drilling.
Background
In order to further and deeply study the moon, even develop and utilize moon resources, people carrying the moon have become strategic targets for race and pursue in various countries. Deep research is carried out on moon, lunar surface samples are very important, especially deep lunar soil and lunar rock samples, and therefore, development of deep drilling sampling on lunar surfaces is a scientific and engineering problem to be solved urgently.
From the returned lunar soil detection data, the lunar surface is influenced by environmental factors such as extreme temperature, so that loose granular substances with the thickness of a plurality of meters are distributed on the lunar surface, and the stratum structure is relatively complex. When lunar soil with different components, grain size grading and structural shape is drilled by drilling equipment in the lunar drilling construction process, the physical-mechanical state changes to cause severe fluctuation, so that the stability and the drilling efficiency of the whole drilling process are affected, even the risk of damaging the drilling equipment is caused, and the great risk is brought to the implementation of lunar drilling engineering. Especially particles of critical dimensions. Therefore, developing lunar soil-drilling tool interaction mechanism in the complex lunar surface drilling process, optimizing the drill bit structure and drilling parameters has important significance for developing lunar surface deep drilling sampling drilling tool design and process parameter optimization in China.
At present, the international research on lunar soil drilling mainly comprises two types of numerical simulation and a test method, wherein the numerical simulation adopts a plurality of simplified models, so that the simulated conditions are different from the actual conditions; the traditional test method cannot observe the internal condition of the lunar soil, lacks internal detail parameters, often needs to dig out the lunar soil to determine the drilling state of particles in the lunar soil, and cannot correspond to the relation between the drilling pressure, the rotating speed, the torque, the footage and the actual working condition in the drilling process, so that the interaction mechanism of the lunar soil-drilling tool is difficult to be intuitively revealed in real time, and the drilling process is further guided.
Based on the above, the application provides a visual system and a visual method for simulating complex lunar surface drilling.
Disclosure of Invention
In order to solve the problems in the prior art, namely that the test method in the prior art cannot observe the internal condition of lunar soil and lacks internal detail parameters, the lunar soil is often required to be excavated to determine the drilling state of particles in the lunar soil, and the relationship between the drilling pressure, the rotating speed, the torque, the footage and the actual working condition in the drilling process cannot be corresponded, so that the interaction mechanism of the lunar soil-drilling tool is difficult to be intuitively revealed in real time, and the drilling process is guided.
The application provides a visual system for simulating complex lunar surface drilling, which comprises a test system base, a rotary CT system, a temperature pump, a vacuum pump, an air compressor, a drilling system, a lunar soil simulating barrel, a constant bit pressure stabilizing system and a comprehensive control console;
the test system base is fixed with the ground, and the rotary CT system, the temperature pump, the vacuum pump, the air compressor, the lunar soil simulating barrel and the constant bit pressure stabilizing system are all fixed on the test system base;
the rotary CT system is used for scanning the internal structure of the simulated lunar soil barrel, the simulated lunar soil barrel is connected with the drilling system, the drilling system is arranged above the simulated lunar soil barrel, and the drilling system is used for sampling lunar soil in the simulated lunar soil barrel;
the temperature pump, the vacuum pump and the air compressor are all connected with the simulated lunar soil barrel, the temperature pump is used for providing a high-temperature or low-temperature environment of lunar soil on the lunar surface, the vacuum pump is used for providing a vacuum environment of lunar soil on the lunar surface, the air compressor is used for providing a gas pressure environment of lunar soil on the lunar surface, and the gas in the air compressor realizes a constant weight-on-bit condition of the drilling system during drilling through the constant weight-on-bit stabilizing system;
the comprehensive control console is used for controlling the starting and stopping of the rotary CT system, the temperature pump, the vacuum pump, the air compressor, the drilling system, the lunar soil simulating barrel and the constant bit pressure stabilizing system.
In some preferred embodiments, the rotary CT system comprises a CT outer frame, a rotary motor rotor, a rotary motor stator, a detector, a radiation source;
the CT outer frame is fixed with the test system base, the inner circumferential surface of the CT outer frame is fixed with the rotating motor stator, the rotating motor stator is connected with the rotating motor rotor bearing, the inner circumferential surface of the rotating motor rotor is fixed with the detector and the ray source, the ray source faces the detector, the ray source is used for emitting rays to the simulated lunar soil barrel, and the detector is combined for imaging the interior of the simulated lunar soil barrel.
In some preferred embodiments, the drilling system comprises a feed drive motor, a connection plate, a decelerator, a drill guide bar, a drill pipe chuck, a drill rotary rotor, a drill rotary stator, a crane, a drill linear bearing, a feed screw, a bearing housing, an outer auger pipe, a drill bit;
the automatic drilling device comprises a connecting plate, a feeding driving motor, a plurality of drilling guide rods, a drilling rotary stator, a chuck, a drill rod rotating stator, a chuck and a drill bit, wherein the feeding driving motor is fixed with the connecting plate, the connecting plate is fixed with one end of the drilling guide rods, the other end of the drilling guide rods is fixed with the simulated lunar soil barrel, the feeding driving motor is connected with the input shaft of the speed reducer, the shell of the speed reducer is fixed with the connecting plate, the output shaft of the speed reducer is coaxially fixed with the feed screw, the feed screw is installed on the bearing seat through the bearing, the bearing seat is fixed with the simulated lunar soil barrel, the feed screw is in threaded connection with the lifting frame, a first guide hole is formed in the lifting frame, the drilling guide rods can longitudinally reciprocate along the first guide hole, the lifting frame is fixed with the drill rod rotating stator, the drill rotating stator is connected with the drill rod rotating rotor bearing, the inner circumferential surface of the drill rotary rotor is fixed with the drill rod, the chuck is used for clamping and fixing the outer spiral, the drill rod is fixed with the simulated lunar soil barrel, and the drill bit is used for fixing the drill bit.
In some preferred embodiments, the simulated lunar soil bucket comprises a sealing flange, a lunar soil model box, lunar soil, a circulating pipeline, a vacuum pipe and an insulating layer;
the sealing flange is fixed with the lunar soil model box in a sealing way, lunar soil is filled in the lunar soil model box, the lunar soil model box comprises an inner layer and an outer layer, a vacuum layer is arranged between the inner layer and the outer layer, an insulating layer is arranged between the inner layer and the outer layer, and the lunar soil model box is connected with the constant bit pressure stabilizing system;
the lunar soil model box is fixed and communicated with one end of the vacuum tube, the other end of the vacuum tube is fixed and communicated with the vacuum pump, the lunar soil model box is fixed and communicated with one end of the circulating pipeline, and the other end of the circulating pipeline is fixed and communicated with the temperature pump.
In some preferred embodiments, the constant weight on bit stabilization system comprises a constant weight on bit stabilization system end face, a pressure sensor, a constant weight on bit guide rod, a constant weight on bit linear bearing, a cylinder, a piston rod and an air inlet;
the upper surface of the end face of the constant bit pressure stabilizing system is fixed with the lunar soil model box, the lower surface of the end face of the constant bit pressure stabilizing system is fixed with the constant bit pressure guide rod, the constant bit pressure guide rod is arranged in a second guide hole through the constant bit pressure linear bearing, the second guide Kong Kaishe is arranged on the end face of the air cylinder, the air cylinder is fixed with the test system base, a piston rod capable of moving along the air cylinder is arranged in the air cylinder, the piston rod is fixed with one end of the pressure sensor, and the other end of the pressure sensor is fixed with the lower surface of the end face of the constant bit pressure stabilizing system;
two air inlets are formed in the outer circumference of the air cylinder, and the two air inlets are connected with the air compressor through pipelines.
In some preferred embodiments, one of the two air inlets is formed at an upper end of the partition plate overlapping the cylinder inner surface of the piston rod, and the other of the two air inlets is formed at a lower end of the partition plate overlapping the cylinder inner surface of the piston rod.
In some preferred embodiments, the method for screwing the feed screw and the lifting frame is as follows: the lifting frame is provided with a threaded hole, and the threaded hole is in threaded connection with the feed screw.
In some preferred embodiments, two vacuum pipes are provided in the system, one of the vacuum pipes is connected with the interior of the lunar soil model box in a sealing manner, the other vacuum pipe is connected with a gap between the inner layer and the outer layer of the lunar soil model box in a sealing manner, and both the vacuum pipes are connected with the vacuum pump.
In another aspect of the present application, a visualization method for simulating complex lunar surface drilling is provided, comprising the steps of:
step S10, electrifying the temperature pump and the vacuum pump through the comprehensive control console to provide the temperature and the vacuum environment of lunar soil on the lunar surface;
step S20, electrifying the rotary CT system through the comprehensive console, enabling a ray source and a detector in the rotary CT system to work, and scanning the lunar soil simulation barrel;
and step S30, electrifying a feed driving motor and a drilling rotary stator in the drilling system through the comprehensive control console, so that a drill bit in the drilling system drills downwards at a constant speed in the lunar soil simulation box and rotates automatically to simulate constant speed drilling.
In some preferred embodiments, the another method of the visualization method simulating complex lunar surface drilling comprises:
step S10, electrifying the temperature pump and the vacuum pump through the comprehensive control console to provide the temperature and the vacuum environment of lunar soil on the lunar surface;
step S20, electrifying the rotary CT system through the comprehensive console, enabling a ray source and a detector in the rotary CT system to work, and scanning the lunar soil simulation barrel;
step S30, electrifying a drilling rotary stator in the drilling system through the comprehensive control console, so that a drill bit in the drilling system rotates automatically;
and S40, electrifying the air compressor through the comprehensive control console, and inflating the air cylinder in the constant bit pressure stabilizing system to enable a piston rod of the air cylinder to drive the lunar soil simulation barrel to longitudinally move so as to simulate constant bit pressure drilling.
The application has the beneficial effects that:
through real-time three-dimensional imaging of the rotary CT system, each working condition of the complex lunar surface drilling process is visualized, the relation among different drilling working conditions, rotating speed, torque, weight on bit and footage is clarified, drilling parameters are optimized, and a corresponding drilling strategy is designed and formulated. The application has the advantages of intuitionism, visualization, clear information and the like, and is expected to provide theoretical support for drilling complex stratum on the lunar surface. The design parameters and the technological parameters of the drill bit are conveniently adjusted, the drill bit can be further accurately optimized, the drill bit is prevented from being clamped by particles in lunar soil during working, and the drill bit can always work.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is an isometric view of a visualization system simulating complex lunar surface drilling;
FIG. 2 is a front view of a visualization system simulating complex lunar surface drilling;
FIG. 3 is a top view of a visualization system simulating complex lunar surface drilling;
FIG. 4 is an isometric view of a rotary CT system in a visualization system simulating complex lunar surface drilling;
FIG. 5 is a cross-sectional view of a front view of a rotary CT system in a visualization system simulating complex lunar surface drilling;
FIG. 6 is an overall schematic of a drilling system in a visualization system simulating complex lunar surface drilling;
FIG. 7 is a partial schematic view of a drilling system in a visualization system simulating complex lunar surface drilling;
FIG. 8 is a front view corresponding to a partial schematic of the drilling rig system shown in FIG. 7;
FIG. 9 is a perspective view of a lunar soil simulation bucket in a visualization system simulating complex lunar surface drilling;
FIG. 10 is a cross-sectional view of a lunar soil simulation bucket in a visualization system simulating complex lunar surface drilling;
FIG. 11 is a cross-sectional view of a constant weight-on-bit stabilization system in a visualization system simulating complex lunar surface drilling;
FIG. 12 is a schematic diagram of the drilling conditions in a visual system simulating complex lunar surface drilling;
FIG. 13 is a schematic diagram of the relationship between drill bit and critical dimension particles in a visual system simulating complex lunar surface drilling.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1-13, referring to fig. 1, 2 and 3, the application provides a visual system for simulating complex lunar surface drilling, which comprises a test system base 1, a rotary CT system 2, a temperature pump 3, a vacuum pump 4, an air compressor 5, a drilling system 6, a lunar soil simulating barrel 7, a constant bit pressure stabilizing system 8 and a comprehensive control console 9;
the test system base 1 is fixed with the ground, and the rotary CT system 2, the temperature pump 3, the vacuum pump 4, the air compressor 5, the lunar soil simulating barrel 7 and the constant bit pressure stabilizing system 8 are all fixed on the test system base 1;
the rotary CT system 2 is used for scanning the internal structure of the simulated lunar soil barrel 7, the simulated lunar soil barrel 7 is connected with the drilling system 6, the drilling system 6 is arranged above the simulated lunar soil barrel 7, and the drilling system 6 is used for sampling lunar soil in the simulated lunar soil barrel 7;
the temperature pump 3, the vacuum pump 4 and the air compressor 5 are all connected with the simulated lunar soil barrel 7, the temperature pump 3 is used for providing a high-temperature or low-temperature environment of lunar soil on the lunar surface, the vacuum pump 4 is used for providing a vacuum environment of lunar soil on the lunar surface, the air compressor 5 is used for providing a gas pressure environment of lunar soil on the lunar surface, and the gas in the air compressor 5 realizes a constant bit pressure condition of the drilling system 6 during drilling through the constant bit pressure stabilizing system 8;
the comprehensive control console 9 is used for controlling the starting and stopping of the rotary CT system 2, the temperature pump 3, the vacuum pump 4, the air compressor 5, the drilling system 6, the lunar soil simulation barrel 7 and the constant weight on bit stabilizing system 8.
According to the application, the rotary CT system 2 is electrified through the comprehensive control console 9 and is used for imaging the internal structure of the simulated lunar soil barrel 7, then the temperature pump 3 and the vacuum pump 4 are electrified and simulate the real environment in the simulated lunar soil barrel 7, lunar soil is sampled through the drilling system 6, and the working condition of the drill bit 6.13 can be seen through the rotary CT system 2, so that the design parameters and the technological parameters of the drill bit 6.13 can be conveniently adjusted, the drill bit 6.13 can be accurately optimized, the drill bit 6.13 is prevented from being blocked by particles in the lunar soil during working, and the drill bit 6.13 can always work.
Preferably, referring to fig. 2, 4 and 5, the rotary CT system 2 includes a CT outer frame 2.1, a rotary motor rotor 2.2, a rotary motor stator 2.3, a detector 2.4 and a radiation source 2.5;
the CT outer frame 2.1 is fixed with the test system base 1, the inner circumferential surface of the CT outer frame 2.1 is fixed with the rotating motor stator 2.3, the rotating motor stator 2.3 is connected with the rotating motor rotor 2.2 through a bearing, the inner circumferential surface of the rotating motor rotor 2.2 is fixed with the detector 2.4 and the ray source 2.5, the ray source 2.5 faces the detector 2.4, and the ray source 2.5 is used for emitting rays to the simulated lunar soil barrel 7 and imaging the interior of the simulated lunar soil barrel 7 in combination with the detector 2.4.
According to the application, the rotating motor stator 2.3 is electrified, so that the rotating motor stator 2.3 generates a magnetic field to drive the rotating motor rotor 2.2 to rotate, and the rotating motor rotor 2.2 drives the detector 2.4 and the ray source 2.5 to rotate, so that the omnibearing position of the lunar soil simulating bucket 7 can be detected and imaged.
Preferably, referring to fig. 5, 6, 7 and 8, the drilling system 6 includes a feed drive motor 6.1, a connecting plate 6.2, a reducer 6.3, a drill guide rod 6.4, a drill rod chuck 6.5, a drilling rotary rotor 6.6, a drilling rotary stator 6.7, a lifting frame 6.8, a drilling linear bearing 6.9, a feed screw 6.10, a bearing seat 6.11, an outer auger stem 6.12 and a drill bit 6.13;
the feeding drive motor 6.1 is fixed with the connecting plate 6.2, the connecting plate 6.2 is fixed with one end of a plurality of drilling guide rods 6.4, the other end of each drilling guide rod 6.4 is fixed with the simulated lunar soil barrel 7, the feeding drive motor 6.1 is connected with an input shaft of the speed reducer 6.3, a shell of the speed reducer 6.3 is fixed with the connecting plate 6.2, an output shaft of the speed reducer 6.3 is coaxially fixed with the feeding screw 6.10, the feeding screw 6.10 is installed on the bearing seat 6.11 through a bearing, the bearing seat 6.11 is fixed with the simulated lunar soil barrel 7, the feeding screw 6.10 is in threaded connection with the lifting frame 6.8, a first guide hole is formed in the lifting frame 6.8, the first guide hole is connected with the drilling guide rod 6.4 through the drilling linear bearing 6.9, the drilling guide rod 6.4 can longitudinally move along the first guide hole, the lifting frame 6.8 is rotatably connected with the drill rod 6.6.6.6, the rotary table 6.13 is fixedly connected with the drill rod 6.6.6, and the rotary table 6.13 is fixedly connected with the drill rod 6.6, and the rotary table 6.13 is fixedly provided with the rotary table.
According to the application, the feed driving motor 6.1 is remotely controlled to rotate through the comprehensive control console 9, so that the feed driving motor 6.1 drives the feed screw 6.10 to rotate through the speed reducer 6.3, and the feed screw 6.10 is in threaded connection with the lifting frame 6.8, so that the lifting frame 6.8 is driven to finish lifting action through controlling the forward and reverse rotation of the feed driving motor 6.1, when lunar soil is to be drilled, the lifting frame 6.8 is driven to move downwards, at the moment, the drilling guide rod 6.4 moves along the first guide hole, so that the lifting frame 6.8 drives the drilling rotary stator 6.7, the drilling rotary rotor 6.6, the drill rod chuck 6.5, the outer spiral drill rod 6.12 and the drill bit 6.13 to move downwards, and at the moment, the drilling rotary stator 6.7 is electrified, so that the drill bit 6.13 is rotated, and the lunar soil simulation barrel 7 can be drilled, and the experiment with constant drilling speed is completed.
Preferably, referring to fig. 2, 9 and 10, the lunar soil simulating bucket 7 comprises a sealing flange 7.1, a lunar soil model box 7.2, a lunar soil 7.3, a circulating pipeline 7.4, a vacuum pipe 7.5 and a heat insulation layer 7.6;
the sealing flange 7.1 is fixed with the lunar soil model box 7.2 in a sealing way, lunar soil 7.3 is filled in the lunar soil model box 7.2, the lunar soil model box 7.2 comprises an inner layer and an outer layer, a vacuum layer is arranged between the inner layer and the outer layer, an insulating layer 7.6 is arranged between the inner layer and the outer layer, and the lunar soil model box 7.2 is connected with the constant bit pressure stabilizing system 8;
the lunar soil model box 7.2 is fixed and communicated with one end of the vacuum tube 7.5, the other end of the vacuum tube 7.5 is fixed and communicated with the vacuum pump 4, the lunar soil model box 7.2 is fixed and communicated with one end of the circulating pipeline 7.4, and the other end of the circulating pipeline 7.4 is fixed and communicated with the temperature pump 3.
Preferably, referring to fig. 2, 10 and 11, the constant weight on bit stabilizing system 8 comprises a constant weight on bit stabilizing system end face 8.1, a pressure sensor 8.2, a constant weight on bit guide rod 8.3, a constant weight on bit linear bearing 8.4, a cylinder 8.5, a piston rod 8.6 and an air inlet 8.7;
the upper surface of the constant bit pressure stabilizing system end face 8.1 is fixed with the lunar soil model box 7.2, the lower surface of the constant bit pressure stabilizing system end face 8.1 is fixed with the constant bit pressure guide rod 8.3, the constant bit pressure guide rod 8.3 is configured in a second guide hole through the constant bit pressure linear bearing 8.4, the second guide Kong Kaishe is arranged on the end face of the air cylinder 8.5, the air cylinder 8.5 is fixed with the test system base 1, a piston rod 8.6 capable of moving along the air cylinder 8.5 is arranged in the air cylinder 8.5, the piston rod 8.6 is fixed with one end of the pressure sensor 8.2, and the other end of the pressure sensor 8.2 is fixed with the lower surface of the constant bit pressure stabilizing system end face 8.1;
two air inlets 8.7 are formed in the outer circumference of the air cylinder 8.5, and the two air inlets 8.7 are connected with the air compressor 5 through pipelines.
One of the two air inlets 8.7 is arranged at the upper end of a partition plate of the piston rod 8.6, which is in lap joint with the inner surface of the cylinder 8.5, and the other of the two air inlets 8.7 is arranged at the lower end of the partition plate of the piston rod 8.6, which is in lap joint with the inner surface of the cylinder 8.5.
When the air compressor 5 charges air to the air inlet 8.7 at the lower end of the partition plate overlapped with the inner surface of the air cylinder 8.5, the piston rod 8.6 moves upwards to drive the pressure sensor 8.2 and the lunar soil model box 7.2 to move upwards, at the moment, the feeding driving motor 6.1 in the drilling system 6 is not electrified, the drilling rotary stator 6.7 is electrified, and the drill bit 6.13 does not move in the longitudinal direction but can rotate, so that constant bit pressure drilling is simulated.
1-13, the visualization method for simulating complex lunar surface drilling, based on the visualization system for simulating complex lunar surface drilling, comprises the following steps:
step S10, powering on the temperature pump 3 and the vacuum pump 4 through the comprehensive control console 9 to provide the temperature and the vacuum environment of lunar soil on the lunar surface;
step S20, electrifying the rotary CT system 2 through the comprehensive control console 9 to enable a ray source 2.5 and a detector 2.4 in the rotary CT system 2 to work, and scanning the lunar soil simulation barrel 7;
and step S30, electrifying a feed driving motor 6.1 and a drilling rotary stator 6.7 in the drilling system 6 through the comprehensive control console 9, so that a drill bit 6.13 in the drilling system 6 drills downwards at a constant speed in the lunar soil simulation box 7 and rotates automatically, and simulating constant speed drilling.
The other method of the visual method for simulating complex lunar surface drilling comprises the following steps:
step S10, powering on the temperature pump 3 and the vacuum pump 4 through the comprehensive control console 9 to provide the temperature and the vacuum environment of lunar soil on the lunar surface;
step S20, electrifying the rotary CT system 2 through the comprehensive control console 9 to enable a ray source 2.5 and a detector 2.4 in the rotary CT system 2 to work, and scanning the lunar soil simulation barrel 7;
step S30, electrifying a drilling rotary stator 6.7 in the drilling system 6 through the comprehensive control console 9 to enable a drill bit 6.13 in the drilling system 6 to rotate automatically;
and S40, electrifying the air compressor 5 through the comprehensive control console 9, and inflating the air cylinder 8.5 in the constant bit pressure stabilizing system 8 to enable the piston rod 8.6 of the air cylinder 8.5 to drive the lunar soil simulation barrel 7 to longitudinally move so as to simulate constant bit pressure drilling.
The lunar surface drilling equipment is required to be small in size and low in power consumption due to the limitation of the loading capacity of the lunar surface aircraft and the limitation of the power supply level of a power supply and distribution system of the landing device. This also limits the drilling power, maximum turning torque, maximum footage rate and maximum weight on bit of the drilling apparatus. In order to comprehensively study the influence of drilling parameters on the drilling efficiency of a complex lunar surface, the interrelation among the rotating speed, the footage, the weight on bit, the torque and the drill bit abrasion needs to be studied, wherein variables which can be actively controlled are the rotating speed, the footage speed and the weight on bit. Therefore, the application has the two drilling modes, namely constant-speed drilling and constant-weight drilling, the rotary torque is obtained by real-time calculation through the rotary driving motor corresponding to the drilling rotary rotor 6.6 in the working mode of the constant-speed drilling experiment, and the weight of the drill is passively acquired by the pressure sensor 8.2 below. The constant bit pressure drilling mode is that the drilling system 6 does not work, the constant bit pressure is controlled through the cylinder 8.5 below, the footage is obtained through the expansion and contraction amount of the piston rod 8.6, and the rotation torque is calculated in real time according to the rotation driving motor corresponding to the drilling rotation rotor 6.6, so that the influence of different bit pressures on the drilling efficiency is researched.
Wherein, referring to fig. 12, the first graph is small-scale grain lunar soil encountered during drilling, the second graph is critical-scale grain lunar soil, and the third graph is large-scale grain lunar soil;
wherein, referring to fig. 13, the first figure is a case of blocking a drilled hole, the second figure is a case of embedding a drill bit and moving with the drill bit, the third figure is a case of shifting out critical-scale granular lunar soil by the drill bit, and the fourth figure is a case of cutting up critical-scale granular lunar soil.
The terms "first," "second," and the like, are used for distinguishing between similar objects and not for describing a particular sequential or chronological order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus/apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus/apparatus.
Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will be within the scope of the present application.
Claims (6)
1. A visual system for simulating complex lunar surface drilling is characterized in that: the system comprises a test system base (1), a rotary CT system (2), a temperature pump (3), a vacuum pump (4), an air compressor (5), a drilling system (6), a lunar soil simulating bucket (7), a constant bit pressure stabilizing system (8) and a comprehensive control console (9);
the test system base (1) is fixed with the ground, and the rotary CT system (2), the temperature pump (3), the vacuum pump (4), the air compressor (5), the lunar soil simulation barrel (7) and the constant bit pressure stabilizing system (8) are all fixed on the test system base (1);
the rotary CT system (2) is used for scanning the internal structure of the simulated lunar soil barrel (7), the simulated lunar soil barrel (7) comprises a lunar soil model box (7.2), the simulated lunar soil barrel (7) is connected with the drilling system (6), the drilling system (6) is arranged above the simulated lunar soil barrel (7), and the drilling system (6) is used for sampling lunar soil in the simulated lunar soil barrel (7);
the temperature pump (3), the vacuum pump (4) and the air compressor (5) are all connected with the lunar soil simulation barrel (7), the temperature pump (3) is used for providing a temperature environment of lunar soil on the surface of the moon, the vacuum pump (4) is used for providing a vacuum environment of lunar soil on the surface of the moon, the air compressor (5) is used for providing a gas pressure environment of lunar soil on the surface of the moon, and the gas in the air compressor (5) realizes a constant bit pressure condition of the drilling system (6) during drilling through the constant bit pressure stabilizing system (8);
the comprehensive control console (9) is used for controlling the starting and stopping of the rotary CT system (2), the temperature pump (3), the vacuum pump (4), the air compressor (5), the drilling system (6), the lunar soil simulation barrel (7) and the constant weight on bit stabilizing system (8);
the rotary CT system (2) comprises a CT outer frame (2.1), a rotary motor rotor (2.2), a rotary motor stator (2.3), a detector (2.4) and a ray source (2.5);
the CT outer frame (2.1) is fixed with the test system base (1), the inner circumferential surface of the CT outer frame (2.1) is fixed with the rotating motor stator (2.3), the rotating motor stator (2.3) is connected with the rotating motor rotor (2.2) through a bearing, the inner circumferential surface of the rotating motor rotor (2.2) is fixed with the detector (2.4) and the ray source (2.5), the ray source (2.5) faces the detector (2.4), and the ray source (2.5) is used for emitting rays to the simulated lunar soil barrel (7) and imaging the interior of the simulated lunar soil barrel (7) through the detector (2.4);
the drilling system (6) comprises a feeding driving motor (6.1), a connecting plate (6.2), a speed reducer (6.3), a drilling guide rod (6.4), a drill rod chuck (6.5), a drilling rotary rotor (6.6), a drilling rotary stator (6.7), a lifting frame (6.8), a drilling linear bearing (6.9), a feed screw (6.10), a bearing seat (6.11), an outer spiral drill rod (6.12) and a drill bit (6.13);
the feed drive motor (6.1) is fixed with the connecting plate (6.2), the connecting plate (6.2) is fixed with one end of a plurality of drilling guide rods (6.4), the other end of each drilling guide rod (6.4) is fixed with the simulated lunar soil barrel (7), the feed drive motor (6.1) is connected with an input shaft of the speed reducer (6.3), a shell of the speed reducer (6.3) is fixed with the connecting plate (6.2), an output shaft of the speed reducer (6.3) is coaxially fixed with the feed screw (6.10), the feed screw (6.10) is installed on the bearing seat (6.11) through a bearing, the bearing seat (6.11) is fixed with the simulated lunar soil barrel (7), the feed screw (6.10) is in threaded connection with the lifting frame (6.8), a first guide hole is formed in the lifting frame (6.8), the first guide hole is connected with the inner circumference of the drilling guide rod (6.4) through the linear bearing (6.7) in a rotary mode, the rotor (6.7) is rotatably connected with the rotary drill rod (6.7) through the rotary drill guide rod (6.5), the drill rod chuck (6.5) is used for clamping and fixing the outer spiral drill rod (6.12), the outer spiral drill rod (6.12) is fixed with the drill bit (6.13), and the drill bit (6.13) is used for drilling the simulated lunar soil barrel (7);
the lunar soil simulating bucket (7) comprises a sealing flange (7.1), lunar soil (7.3), a circulating pipeline (7.4), a vacuum tube (7.5) and a heat preservation layer (7.6);
the sealing flange (7.1) is fixed with the lunar soil model box (7.2) in a sealing way, the lunar soil model box (7.2) is filled with lunar soil (7.3), the lunar soil model box (7.2) comprises an inner layer and an outer layer, a vacuum layer is arranged between the inner layer and the outer layer, the heat insulation layer (7.6) is arranged between the inner layer and the outer layer, and the lunar soil model box (7.2) is connected with the constant bit pressure stabilizing system (8);
the lunar soil model box (7.2) is fixed and communicated with one end of the vacuum tube (7.5), the other end of the vacuum tube (7.5) is fixed and communicated with the vacuum pump (4), the lunar soil model box (7.2) is fixed and communicated with one end of the circulating pipeline (7.4), and the other end of the circulating pipeline (7.4) is fixed and communicated with the temperature pump (3);
the constant bit pressure stabilizing system (8) comprises a constant bit pressure stabilizing system end face (8.1), a pressure sensor (8.2), a constant bit pressure guide rod (8.3), a constant bit pressure linear bearing (8.4), a cylinder (8.5), a piston rod (8.6) and an air inlet (8.7);
the upper surface of the constant bit pressure stabilizing system end face (8.1) is fixed with the lunar soil model box (7.2), the lower surface of the constant bit pressure stabilizing system end face (8.1) is fixed with the constant bit pressure guide rod (8.3), the constant bit pressure guide rod (8.3) is configured in a second guide hole through the constant bit pressure linear bearing (8.4), the second guide Kong Kaishe is arranged on the end face of the air cylinder (8.5), the air cylinder (8.5) is fixed with the test system base (1), the piston rod (8.6) capable of moving along the air cylinder (8.5) is arranged in the air cylinder, the piston rod (8.6) is fixed with one end of the pressure sensor (8.2), and the other end of the pressure sensor (8.2) is fixed with the lower surface of the constant bit pressure stabilizing system end face (8.1);
two air inlets (8.7) are formed in the outer circumference of the air cylinder (8.5), and the two air inlets (8.7) are connected with the air compressor (5) through pipelines.
2. A visualization system for simulating complex lunar surface drilling as in claim 1 wherein: one of the two air inlets (8.7) is arranged at the upper end of a baffle plate of the piston rod (8.6) which is in lap joint with the inner surface of the air cylinder (8.5), and the other of the two air inlets (8.7) is arranged at the lower end of a baffle plate of the piston rod (8.6) which is in lap joint with the inner surface of the air cylinder (8.5).
3. A visualization system for simulating complex lunar surface drilling as claimed in claim 2 wherein: the method for connecting the feed screw (6.10) and the lifting frame (6.8) in a threaded way is as follows: threaded holes are formed in the lifting frames (6.8), and the threaded holes are in threaded connection with the feed screw rods (6.10).
4. A visualization system for simulating complex lunar surface drilling as in claim 3 wherein: two vacuum pipes (7.5) are arranged in the system, one vacuum pipe (7.5) is in sealing connection with the interior of the lunar soil model box (7.2), the other vacuum pipe (7.5) is in sealing connection with a gap between the inner layer and the outer layer of the lunar soil model box (7.2), and the two vacuum pipes (7.5) are both connected with the vacuum pump (4).
5. A visualization method for simulating complex lunar surface drilling, based on the visualization system for simulating complex lunar surface drilling according to any one of claims 1 to 4, comprising the steps of:
step S10, electrifying the temperature pump (3) and the vacuum pump (4) through the comprehensive control console (9) to provide the temperature and the vacuum environment of lunar soil on the surface of the moon;
step S20, electrifying the rotary CT system (2) through the comprehensive control console (9) to enable a ray source (2.5) and a detector (2.4) in the rotary CT system (2) to work, and scanning the lunar soil model box (7.2);
and S30, electrifying a feed driving motor (6.1) and a drilling rotating stator (6.7) in the drilling system (6) through the comprehensive control console (9), so that a drill bit (6.13) in the drilling system (6) drills downwards at a constant speed in the lunar soil model box (7.2) and rotates at a constant speed, and simulating constant speed drilling.
6. A visualization method for simulating complex lunar surface drilling, based on the visualization system for simulating complex lunar surface drilling according to any one of claims 1 to 4, comprising the steps of:
step S10, electrifying the temperature pump (3) and the vacuum pump (4) through the comprehensive control console (9) to provide the temperature and the vacuum environment of lunar soil on the surface of the moon;
step S20, electrifying the rotary CT system (2) through the comprehensive control console (9) to enable a ray source (2.5) and a detector (2.4) in the rotary CT system (2) to work, and scanning the lunar soil model box (7.2);
step S30, electrifying a drilling rotary stator (6.7) in the drilling system (6) through the comprehensive control console (9) to enable a drill bit (6.13) in the drilling system (6) to rotate;
and S40, electrifying the air compressor (5) through the comprehensive control console (9), and inflating the air cylinder (8.5) in the constant weight on bit stabilizing system (8), so that a piston rod (8.6) of the air cylinder (8.5) drives the lunar soil model box (7.2) to longitudinally move, and simulating constant weight on bit drilling.
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