CN114839057A - Intelligent mineral experiment device and method - Google Patents
Intelligent mineral experiment device and method Download PDFInfo
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- CN114839057A CN114839057A CN202210363774.5A CN202210363774A CN114839057A CN 114839057 A CN114839057 A CN 114839057A CN 202210363774 A CN202210363774 A CN 202210363774A CN 114839057 A CN114839057 A CN 114839057A
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 78
- 239000011707 mineral Substances 0.000 title claims abstract description 78
- 238000002474 experimental method Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 238000006073 displacement reaction Methods 0.000 claims abstract description 39
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims description 6
- 238000007373 indentation Methods 0.000 abstract description 26
- 239000011435 rock Substances 0.000 abstract description 20
- 238000004904 shortening Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 8
- 238000011160 research Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000012764 semi-quantitative analysis Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0078—Hardness, compressibility or resistance to crushing using indentation
- G01N2203/008—Residual indentation measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses an intelligent mineral experiment device and method, which comprises an experiment table and a test assembly arranged on the experiment table, the test assembly comprises a driving mechanism, the driving mechanism comprises a first displacement mechanism, a second displacement mechanism and a third displacement mechanism, the first displacement mechanism comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically arranged on the experiment table, the first support frame is provided with a first motor, the output end of the first motor is connected with a first threaded screw rod in a matching way, the first threaded screw rod is connected with a first sliding block in a matching way, the rheological property of the sandstone is researched by adopting an indentation experiment, the rheological mechanism of the sandstone can be revealed at a mineral scale, moreover, the scale upgrading method has important significance in reducing the experiment cost of the rock sample difficult to core, shortening the rheological experiment time, improving the data reliability and the like.
Description
Technical Field
The invention relates to the field of mineral experiment equipment, in particular to an intelligent mineral experiment device and method.
Background
The rock rheological property research has important significance for the stability of underground engineering in the construction period, the deformation of surrounding rocks, the support design and the like. In recent years, with the depth of underground rock engineering becoming larger, the importance of rock rheological mechanics research becomes more prominent. It is known that rock rheology refers to the constant regulation and reorganization of rock mineral structure (skeleton) with time, resulting in the continuous increase and change of stress and strain state with time. Therefore, conventional uniaxial and triaxial compression rheological experiments, uniaxial tension creep experiments and shear creep experiments take macroscopic rock samples as research objects, and the rheological deformation and damage of the rock are attributed to slippage and dislocation between mineral textures, so that the method belongs to the category of macroscopic creep characteristic research. However, rock is a heterogeneous aggregate of different minerals, the rheological properties of which are necessarily closely related to those of the mineral components. Limited by experimental equipment, the method lacks an effective research means for the microscopic rheological property of the rock, and is not beneficial to the analysis of the rheological deformation reason and the search of the mechanism; meanwhile, the problems of long experiment time, low experiment precision of an experiment device and the like of the traditional rheological experiment generally exist.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides an intelligent mineral experiment device and method.
In order to achieve the aim, the invention adopts the technical scheme that:
the invention provides an intelligent mineral experimental device in a first aspect, which comprises an experimental bench and a test assembly arranged on the experimental bench;
the test assembly comprises a driving mechanism, the driving mechanism comprises a first displacement mechanism, a second displacement mechanism and a third displacement mechanism, the first displacement mechanism comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically installed on the experiment table, a first motor is arranged on the first support frame, the output end of the first motor is connected with a first threaded lead screw in a matching mode, a first sliding block is connected on the first threaded lead screw in a matching mode, a second motor is arranged on the second support frame, the output end of the second motor is connected with a second threaded lead screw in a matching mode, and a second sliding block is connected on the second threaded lead screw in a matching mode;
the second displacement mechanism comprises a third support frame, two ends of the third support frame are respectively erected on the first sliding block and the second sliding block, a third motor is arranged on the third support frame, the output end of the third motor is connected with a third threaded screw rod in a matched mode, and the third threaded screw rod is connected with a third sliding block in a matched mode; the third displacement mechanism comprises a fourth support frame, the fourth support frame is fixedly installed on the third sliding block, a fourth motor is arranged on the fourth support frame, the output end of the fourth motor is connected with a fourth threaded screw rod in a matched mode, and the fourth threaded screw rod is connected with a fourth sliding block in a matched mode.
Further, in a preferred embodiment of the present invention, a rotating table is disposed on the fourth sliding block, a rotating shaft is connected to the rotating table in a matching manner, a mounting seat is connected to a terminal of the rotating shaft in a matching manner, and a plurality of cavities are formed at a bottom of the mounting seat.
Further, in a preferred embodiment of the present invention, a plurality of the cavities are each provided with a telescopic mechanism, the telescopic mechanism is cooperatively connected with a pressure head, the telescopic mechanism is used for pushing out or retracting the pressure head along the cavity, the telescopic mechanism includes a power cylinder, the power cylinder is cooperatively connected with a push rod, and the push rod is fixedly connected with the pressure head.
Further, in a preferred embodiment of the present invention, a first sensor is disposed on the push rod, the first sensor is configured to detect a position and a displacement of the ram, a second sensor is disposed on the ram, the second sensor is in communication connection with the power cylinder, and the second sensor is configured to detect pressure information of the ram.
Further, in a preferred embodiment of the present invention, an ultrasonic detector is disposed on the fourth sliding block, and the ultrasonic detector is configured to detect mineral composition information of a workpiece to be detected and position information corresponding to the mineral composition.
Further, in a preferred embodiment of the present invention, a bottom plate is disposed on the test bed, and a plurality of clamping mechanisms are arrayed on the bottom plate and used for clamping the workpiece to be tested.
Further, in a preferred embodiment of the present invention, the clamping mechanism includes a clamping base, at least three sets of sliding rails are circumferentially disposed on the clamping base, an electric sliding block is slidably connected to the sliding rails, a sliding motor is disposed in the electric sliding block, and a self-locking mechanism is disposed on the electric sliding block.
Further, in a preferred embodiment of the present invention, a third sensor is disposed on the sliding block, and the third sensor is in communication connection with the sliding motor.
The second aspect of the invention provides a control method of an intelligent mineral experiment device, which is applied to any one intelligent mineral experiment device, and comprises the following steps:
acquiring characteristic information fed back after different minerals receive ultrasonic signals through a big data network, and establishing a characteristic database based on the characteristic information;
scanning different positions of a workpiece to be detected through an ultrasonic detector, and extracting sound wave signals fed back by the different positions of the workpiece to be detected;
Leading the sound wave signals into the characteristic database so as to obtain mineral parameter information of different positions of the workpiece to be detected, wherein the parameter information comprises mineral component information, position information of mineral components and shape information of the mineral components;
planning position information of one or more test points based on the mineral parameter information;
generating control information of a driving mechanism, a rotating platform and a telescopic mechanism based on the position information of the one or more test points;
and controlling the driving mechanism, the rotating platform and the telescopic mechanism to operate according to a preset mode according to the control information.
Further, in a preferred embodiment of the present invention, the method for controlling the driving mechanism, the rotating table and the telescoping mechanism to operate according to a predetermined manner according to the control information further comprises the following steps:
applying acting force with preset variable quantity to the surface of the workpiece to be detected within first preset time;
acquiring position information of the pressure head at each moment when acting force with preset variation is applied, and calculating a first displacement of the pressure head within first preset time;
calculating a creep loading elastic strain value based on the first displacement amount;
after a second preset time, unloading the acting force to a preset value;
Acquiring the position information of the pressure head after the acting force is unloaded to the preset value, and calculating the second displacement of the pressure head;
and calculating an unloading elastic strain value based on the second displacement.
The invention solves the defects in the background technology, and has the following beneficial effects: the driving mechanism can drive the mounting seat to move to a plurality of positions of the experiment table for experiments, the operation process is stable, the transmission efficiency is high, and the control precision is high; when a workpiece to be tested is tested, one or more pressure heads can be controlled to be pushed out, so that one or more areas of the workpiece to be tested are tested, the diversity of the testing device is improved, the testing time can be greatly reduced, the pressure heads are mutually independent, and the test of other pressure heads cannot be influenced; the indentation experiment is adopted to research the rheological property of the sandstone, so that the rheological mechanism of the sandstone can be revealed at the mineral scale, and the scale upgrading method has important significance in reducing the experiment cost of the rock sample difficult to core, shortening the rheological experiment time, improving the data reliability and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings of the embodiments can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of an experimental apparatus;
FIG. 2 is a perspective view of the driving mechanism;
FIG. 3 is a schematic structural view of the mounting base;
FIG. 4 is a schematic structural view of a clamping mechanism;
FIG. 5 is a schematic structural view of the telescoping mechanism;
FIG. 6 is an overall method flow diagram of a control method of an intelligent mineral experiment apparatus;
FIG. 7 is a partial method flow diagram of a control method for an intelligent mineral testing apparatus;
the reference numerals are explained below: 101. a laboratory bench; 102. a first support frame; 103. a second support frame; 104. a first motor; 105. a first threaded lead screw; 106. a first slider; 107. a second motor; 108. a second threaded screw; 109. a second slider; 201. a third support frame; 202. a third motor; 203. a third threaded screw; 204. a third slider; 205. a fourth support frame; 206. a fourth motor; 207. a fourth threaded screw; 208. a fourth slider; 209. a rotating table; 301. a rotating shaft; 302. a mounting seat; 303. a cavity; 304. a pressure head; 305. a power cylinder; 306. a push rod; 307. an ultrasonic detector; 308. a base plate; 309. a clamping seat; 401. a slide rail; 402. an electric slider.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description, wherein the drawings are simplified schematic drawings and only the basic structure of the present invention is illustrated schematically, so that only the structure related to the present invention is shown, and it is to be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1 to 5, the first aspect of the present invention provides an intelligent mineral experiment apparatus, which comprises an experiment table 101 and a test assembly arranged on the experiment table 101.
As shown in fig. 1 and 2, the test assembly includes a driving mechanism, the driving mechanism includes a first displacement mechanism, a second displacement mechanism and a third displacement mechanism, the first displacement mechanism includes a first support frame 102 and a second support frame 103, the first support frame 102 and the second support frame 103 are symmetrically installed on the experiment table 101, a first motor 104 is arranged on the first support frame 102, an output end of the first motor 104 is connected with a first threaded lead screw 105 in a matching manner, the first threaded lead screw 105 is connected with a first sliding block 106 in a matching manner, a second motor 107 is arranged on the second support frame 103, an output end of the second motor 107 is connected with a second threaded lead screw 108 in a matching manner, and the second threaded lead screw 108 is connected with a second sliding block 109 in a matching manner.
The second displacement mechanism comprises a third support frame 201, two ends of the third support frame 201 are respectively erected on the first sliding block 106 and the second sliding block 109, a third motor 202 is arranged on the third support frame 201, the output end of the third motor 202 is connected with a third threaded screw rod 203 in a matching manner, and a third sliding block 204 is connected on the third threaded screw rod 203 in a matching manner; the third displacement mechanism comprises a fourth support frame 205, the fourth support frame 205 is fixedly mounted on the third sliding block 204, a fourth motor 206 is arranged on the fourth support frame 205, the output end of the fourth motor 206 is connected with a fourth threaded screw rod 207 in a matching manner, and a fourth sliding block 208 is connected on the fourth threaded screw rod 207 in a matching manner.
It should be noted that, by driving the first motor 104 and the second motor 107 to work synchronously, and by driving the first motor 104 and the second motor 107, the first threaded screw 105 and the second threaded screw 108 are driven to rotate, so that the first sliding block 106 and the second sliding block 109 can respectively slide along the first threaded screw 105 and the second threaded screw, and the mounting base 302 is driven to move along the X-axis direction of the experiment table 101; by driving the third motor 202, the third motor 202 drives the third threaded screw rod 203 to rotate, and further the third sliding block 204 slides along the third threaded screw rod 203, so as to drive the mounting device to move along the Y-axis direction of the experiment table 101; by driving the fourth motor 206, the fourth motor 206 drives the fourth threaded lead screw to slide upwards, so that the fourth sliding block 208 slides along the fourth threaded lead screw 207, and the mounting base 302 is driven to move along the Z direction of the experiment table 101. Therefore, the installation seat 302 can be driven to move to a plurality of positions of the experiment table 101 through the driving mechanism to carry out experiments, transmission is carried out through a transmission mode of the threaded screw rod, the operation process is stable, the transmission efficiency is high, and the control precision is high.
As shown in fig. 1 and 3, a rotating platform 209 is disposed on the fourth sliding block 208, a rotating shaft 301 is connected to the rotating platform 209 in a matching manner, a mounting seat 302 is connected to the tail end of the rotating shaft 301 in a matching manner, and a plurality of cavities 303 are formed in the bottom of the mounting seat 302.
It should be noted that the rotating table 209 further drives the rotating shaft 301 to rotate, so as to drive the mounting base 302 to rotate, and when mineral parameter information of different positions of the workpiece to be measured is obtained, the rotating table 209 further drives one or more pressing heads 304 to rotate to a position right above a specific area of the workpiece to be measured.
As shown in fig. 5, a plurality of telescoping mechanisms are arranged in the cavity 303, the telescoping mechanisms are cooperatively connected with a pressure head 304, the telescoping mechanisms are used for pushing out or retracting the pressure head 304 along the cavity 303, each telescoping mechanism includes a power cylinder 305, the power cylinder 305 is cooperatively connected with a push rod 306, and the push rod 306 is fixedly connected with the pressure head 304.
It should be noted that, first, by driving the power cylinder 305, the power cylinder 305 pushes the push rod 306 to extend out of the cavity 303, so that the ram 304 is pushed out of the cavity 303. Secondly, the size of the pressure applied to the workpiece to be tested by the pressure head 304 in the experiment can be controlled by controlling the power of the power cylinder 305 so as to further enable the experiment device to perform indentation experiments with different pressure sizes. In addition, be provided with a plurality of cavities 303 on mount pad 302, a homogeneous correspondence is provided with a plurality of pressure heads 304 in a plurality of cavities 303, a plurality of pressure heads 304 correspond control by solitary telescopic machanism, when experimenting the work piece that awaits measuring, can control one or more pressure heads 304 and release, thereby experiment one or more regions to the work piece that awaits measuring, and then improved experimental apparatus's variety, and can significantly reduce the experimental time, a plurality of pressure heads 304 are independent each other, can not cause the influence to the experiment of other pressure heads 304.
The push rod 306 is provided with a first sensor, the first sensor is used for detecting the position and displacement of the pressure head 304, the pressure head 304 is provided with a second sensor, the second sensor is in communication connection with the power cylinder 305, and the second sensor is used for detecting the pressure information of the pressure head 304.
The first sensor is a photoelectric sensor, and the second sensor is a film pressure sensor. On one hand, when the pressure with the preset variation is applied to the workpiece to be measured through the pressure head 304 within the preset time, the position information of the pressure head 304 is measured through the first sensor within the preset time, and then the displacement of the pressure head 304 within the preset time is calculated, so that the indentation depth of the workpiece to be measured is accurately and quickly obtained. On the other hand, the pressure information of the pressure head 304 is detected and fed back in real time through the second sensor, and if the pressure information of the pressure head 304 is smaller than a preset value at a preset moment, the second sensor can feed back the information to the power cylinder 305, so that the power cylinder 305 increases the pressure of the pressure head 304 on the workpiece to be detected; if the pressure information of the pressure head 304 is greater than the preset value at the preset moment, the enemy sensor can also feed back the information to the power cylinder 305, so that the power cylinder 305 reduces the pressure of the pressure head 304 on the workpiece to be tested, thus the pressure applied by the pressure head 304 on the workpiece to be tested can be kept within the preset range, the accuracy of the indentation test is further improved, and the reliability of the test result is further improved.
An ultrasonic detector 307 is arranged on the fourth slider 208, and the ultrasonic detector 307 is used for detecting mineral component information of a workpiece to be detected and position information corresponding to the mineral component.
It should be noted that, in order to finely characterize the distribution of mineral components in the workpiece to be detected, comprehensively study the mechanical properties of all mineral components in the workpiece to be detected, avoid omission and misjudgment, the ultrasonic detector 307 is used for performing qualitative and semi-quantitative analysis on the mineral components of the workpiece to be detected, and determining the type of the mineral components in the workpiece to be detected.
As shown in fig. 1 and 4, a bottom plate 308 is arranged on the test bed, and a plurality of clamping mechanisms are arranged on the bottom plate 308 in an array manner and used for clamping a workpiece to be tested.
The clamping mechanism comprises a clamping seat 309, at least three groups of sliding rails 401 are arranged on the clamping seat 309 along the circumferential direction, an electric sliding block 402 is connected onto the sliding rails 401 in a sliding mode, a sliding motor is arranged in the electric sliding block, and a self-locking mechanism is arranged on the electric sliding block 402.
And a third sensor is arranged on the sliding block and is in communication connection with the sliding motor.
It should be noted that, firstly, the electric slider 402 slides along the slide rail 401 by driving the electric slider, and then the workpiece to be detected is clamped by the electric slider 402, in the clamping process, the third sensor can detect and feed back the pressure information between the electric slider 402 and the workpiece to be detected in real time, and after the pressure information reaches a preset value, the third sensor feeds back a signal to the sliding motor, so that the sliding motor stops driving and self-locks, and then the process of clamping the workpiece to be detected is completed, and automatic control is realized. Secondly, be provided with a plurality of clamping mechanism on the bottom plate 308, can fix a plurality of work pieces that await measuring through a plurality of clamping mechanism, can accomplish batch test to bottom plate 308 and laboratory bench 101 are connected for dismantling, can fix the work piece that awaits measuring on clamping mechanism earlier before the experiment, then install bottom plate 308 at laboratory bench 101 can, completion experiment that can be quick has saved the time, has improved experimental efficiency.
A second aspect of the present invention provides a control method for an intelligent mineral experiment apparatus, which is applied to any one of the intelligent mineral experiment apparatuses, as shown in fig. 6, and includes the following steps:
s102: acquiring characteristic information fed back after different minerals receive ultrasonic signals through a big data network, and establishing a characteristic database based on the characteristic information;
s104: scanning different positions of a workpiece to be detected through an ultrasonic detector, and extracting sound wave signals fed back by the different positions of the workpiece to be detected;
s106: leading the sound wave signals into the characteristic database so as to obtain mineral parameter information of different positions of the workpiece to be detected, wherein the parameter information comprises mineral component information, position information of mineral components and shape information of the mineral components;
s108: planning position information of one or more test points based on the mineral parameter information;
s110: generating control information of a driving mechanism, a rotating platform and a telescopic mechanism based on the position information of the one or more test points;
s112: and controlling the driving mechanism, the rotating platform and the telescopic mechanism to operate according to a preset mode according to the control information.
It should be noted that most of the rocks are heterogeneous materials composed of different mineral components, and in order to determine the mechanical properties of the different mineral components in the rocks, the key of the indentation experiment is to determine the mineral components of the rocks. The traditional indentation technology is used for separating mechanical parameters of a single mineral from a large amount of indentation experimental data, but the technology is low in efficiency, statistical errors are inevitably introduced in the data statistical process, and several mineral types with similar mechanical properties, such as clay minerals, montmorillonite and kaolinite, are difficult to distinguish. Therefore, before the indentation experiment, the mineral types of different areas of the rock need to be determined, then the indentation experiment which is independent of each other is carried out on the different mineral types for a plurality of times, and the obtained relatively stable mechanical parameters can represent the mechanical characteristics of the mineral.
It should be noted that, different minerals have different feedback sound wave signals, such as different feedback wavelengths and different feedback frequencies, and the characteristic signals fed back after the ultrasound signals are received by the different minerals are obtained in advance through the big data network, and a database is established. In the experiment, firstly, the ultrasonic detector 307 is driven by the driving mechanism to scan different area positions of the workpiece to be tested, then mineral parameter information of different area positions is determined according to sound wave signals fed back by different areas, then one or more test points are planned according to the mineral parameter information, after the test points are planned, the mounting seat 302 is driven by the driving mechanism to move to a proper position, then the rotating platform 209 is driven to rotate to drive the mounting seat 302 to rotate to a proper position, then one or more press heads 304 are driven to extend out by the driving telescopic mechanism, so that an indentation experiment is independently carried out on one or more test points of the workpiece to be tested, then a rheological experiment comprising two stages of loading elastic strain and unloading elastic strain is carried out by an indentation technology, and finally, the research of the rock mineral component mesomechanics characteristic scale upgrading method is carried out, compared with the traditional experiment method, the experiment method can simultaneously carry out experiments on the workpieces to be tested according to the mineral types of the workpieces to be tested at different positions, and the experiment efficiency is greatly improved.
It should be noted that, when a plurality of test points of the workpiece to be tested are tested at the same time, it is necessary to ensure that the distance between every two adjacent test points is greater than ten times the diameter of the indenter 304. Specifically, if a test point with a distance between two adjacent test points less than ten times the diameter of the indenter 304 exists, the two test points are separately tested, so that the influence of the relative motion of mineral molecules on a microscale on the test during the test between the two adjacent test points is avoided, and the reliability of the test result is improved.
Further, in a preferred embodiment of the present invention, the driving mechanism, the rotating table and the retracting mechanism are controlled to operate according to a predetermined manner according to the control information, as shown in fig. 7, further comprising the steps of:
s202: applying acting force with preset variable quantity to the surface of the workpiece to be detected within first preset time;
s204: acquiring position information of the pressure head at each moment when acting force with preset variation is applied, and calculating a first displacement of the pressure head within first preset time;
s206: calculating a creep loading elastic strain value based on the first displacement amount;
s208: after a second preset time, unloading the acting force to a preset value;
S210: acquiring the position information of the pressure head after the acting force is unloaded to a preset value, and calculating a second displacement of the pressure head;
s212: and calculating an unloading elastic strain value based on the second displacement.
It should be noted that, when the acting force with the preset variation is applied to the surface of the workpiece to be tested within the first preset time, the pressing head 304 is pressed into the workpiece to be tested, so that an indentation matched with the shape of the pressing head 304 is formed on the surface of the workpiece to be tested, in this process, the first displacement is obtained through the first sensor, which is the depth of the indentation, however, the data directly provided by the indentation experiment is data of the relationship between the indentation and time, and the key for studying rheological characteristics of the indentation is how to convert the depth value of the indentation in the experimental process into a strain value. For the indentation experimental procedure, the stress and strain rate can be expressed as:
wherein σ is stress; f is the pressure exerted by the ram 304; h (t) is the real-time indentation depth; μ is the strain rate; t is time; beta is the ram 304 shape parameter.
It should be noted that the calculation formula of the creep load elastic strain value is as follows:
wherein epsilon is a creep loading elastic strain value; h 1 The indentation depth value is the indentation depth value at the beginning moment of a first preset time period; h 2 Is the indentation depth value at the end of the first preset time period.
It should be noted that the calculation formula of the unload elastic strain value is as follows:
wherein epsilon is an unloading elastic strain value; t is 2 In order to unload the acting force to a preset value and then press the depth value of the impression; h 2 Is the indentation depth value at the end of the first preset time period.
It should be noted that the indentation experiment is an effective means for researching the microscopic rheological deformation characteristics of the mineral rock, the stable rheological deformation of the rock is mainly caused by the deformation of mineral components, and the accelerated rheological failure process is the crack penetration caused by slippage and dislocation among mineral particles. The indentation experiment is adopted to research the rheological property of the sandstone, so that the rheological mechanism of the sandstone can be revealed at the mineral scale, and the scale upgrading method has important significance in reducing the experiment cost of the rock sample difficult to core, shortening the rheological experiment time, improving the data reliability and the like.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an intelligent mineral experimental apparatus, is in including laboratory bench and setting test assembly on the laboratory bench, its characterized in that:
the test assembly comprises a driving mechanism, the driving mechanism comprises a first displacement mechanism, a second displacement mechanism and a third displacement mechanism, the first displacement mechanism comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically installed on the experiment table, a first motor is arranged on the first support frame, the output end of the first motor is connected with a first threaded lead screw in a matching mode, a first sliding block is connected on the first threaded lead screw in a matching mode, a second motor is arranged on the second support frame, the output end of the second motor is connected with a second threaded lead screw in a matching mode, and a second sliding block is connected on the second threaded lead screw in a matching mode;
the second displacement mechanism comprises a third support frame, two ends of the third support frame are respectively erected on the first sliding block and the second sliding block, a third motor is arranged on the third support frame, the output end of the third motor is connected with a third threaded screw rod in a matched mode, and the third threaded screw rod is connected with a third sliding block in a matched mode; the third displacement mechanism comprises a fourth support frame, the fourth support frame is fixedly installed on the third sliding block, a fourth motor is arranged on the fourth support frame, the output end of the fourth motor is connected with a fourth threaded screw rod in a matched mode, and the fourth threaded screw rod is connected with a fourth sliding block in a matched mode.
2. The intelligent mineral experiment device of claim 1, wherein: the fourth sliding block is provided with a rotating table, the rotating table is connected with a rotating shaft in a matched mode, the tail end of the rotating shaft is connected with a mounting seat in a matched mode, and the bottom of the mounting seat is provided with a plurality of cavities.
3. The intelligent mineral experiment device of claim 2, wherein: a plurality of all be provided with telescopic machanism in the cavity, telescopic machanism cooperation is connected with the pressure head, telescopic machanism is used for following the cavity is released or is withdrawed the pressure head, telescopic machanism includes power cylinder, power cylinder cooperation is connected with the push rod, the push rod with pressure head fixed connection.
4. An intelligent mineral experiment device according to claim 3, wherein: be provided with first sensor on the push rod, first sensor is used for detecting the position and the displacement volume of pressure head, be provided with the second sensor on the pressure head, the second sensor with power cylinder communication connection, the second sensor is used for detecting the pressure information of pressure head.
5. The intelligent mineral experiment device of claim 1, wherein: and an ultrasonic detector is arranged on the fourth sliding block and is used for detecting mineral composition information of a workpiece to be detected and position information corresponding to the mineral composition.
6. The intelligent mineral experiment device of claim 1, wherein: the test bed is provided with a bottom plate, a plurality of clamping mechanisms are arranged on the bottom plate in an array mode, and the clamping mechanisms are used for clamping workpieces to be tested.
7. The intelligent mineral experiment device of claim 6, wherein: the clamping mechanism comprises a clamping seat, at least three groups of sliding rails are arranged on the clamping seat along the circumferential direction, an electric sliding block is connected onto the sliding rails in a sliding mode, a sliding motor is arranged in the electric sliding block, and a self-locking mechanism is arranged on the electric sliding block.
8. The intelligent mineral experiment device of claim 7, wherein: and a third sensor is arranged on the sliding block and is in communication connection with the sliding motor.
9. A control method of an intelligent mineral experiment device, which is applied to the intelligent mineral experiment device according to any one of claims 1 to 8, and is characterized by comprising the following steps:
acquiring characteristic information fed back after different minerals receive ultrasonic signals through a big data network, and establishing a characteristic database based on the characteristic information;
scanning different positions of a workpiece to be detected through an ultrasonic detector, and extracting sound wave signals fed back by the different positions of the workpiece to be detected;
Leading the sound wave signals into the characteristic database so as to obtain mineral parameter information of different positions of the workpiece to be detected, wherein the parameter information comprises mineral component information, position information of mineral components and shape information of the mineral components;
planning position information of one or more test points based on the mineral parameter information;
generating control information of a driving mechanism, a rotating platform and a telescopic mechanism based on the position information of the one or more test points;
and controlling the driving mechanism, the rotating platform and the telescopic mechanism to operate according to a preset mode according to the control information.
10. The method as claimed in claim 9, wherein the driving mechanism, the rotary table and the telescoping mechanism are controlled to operate in a predetermined manner according to the control information, further comprising the steps of:
applying acting force with preset variable quantity to the surface of the workpiece to be detected within first preset time;
acquiring position information of the pressure head at each moment when acting force with preset variation is applied, and calculating a first displacement of the pressure head within first preset time;
calculating a creep loading elastic strain value based on the first displacement amount;
After a second preset time, unloading the acting force to a preset value;
acquiring the position information of the pressure head after the acting force is unloaded to a preset value, and calculating a second displacement of the pressure head;
and calculating an unloading elastic strain value based on the second displacement.
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