Automatic measuring device for physical properties of rock sample

Abstract

The automatic measuring device for the physical properties of the rock sample comprises a computer and a measuring assembly, and the measuring assembly is connected with the computer through a router and an internet access; the measuring assembly comprises a rotating platform, a rock sample is placed on the rotating platform, a linear array camera and a top 3D contour scanner are fixed to the rear side of the rotating platform, a side 3D contour scanner is arranged on the side face of the rotating platform, and a shading plate is further installed in front of the rotating platform. The measuring assembly further comprises an external analytical balance, and the external analytical balance is connected with the computer. According to the automatic measuring device for the physical properties of the rock sample, information such as the mass, the volume and the non-parallelism of the rock sample can be quickly, accurately and efficiently obtained through an automatic control and machine vision technology carrying software platform, and detection reports of various rock samples can be conveniently and quickly formed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rock mass information collection, and in particular relates to an automatic measuring device for the physical properties of a rock sample. Background Art

[0002] With the advancement of geological exploration technology and the increase in geotechnical engineering needs, the requirements for the accuracy and efficiency of rock sample analysis are becoming increasingly higher.

[0003] The current methods of rock sample measurement mainly include the following aspects: 1. Use high-precision sensors and measurement technology to obtain information such as the size and shape of rock samples; 2. Use computer software to process and analyze the collected data to evaluate the physical and chemical properties of rocks; 3. Use three-dimensional imaging technology and image analysis technology to further improve the accuracy and efficiency of measurements; 4. Describe the name, color, and degree of weathering of the specimen through visual observation, and draw a diagram of the crack distribution and integrity of the specimen on the record sheet.

[0004] Although there are many kinds of rock sample characterization methods, there are still some defects:

[0005] 1. Existing measurement technologies and equipment are often expensive, limiting their application in small laboratories or areas with limited resources.

[0006] 2. Some technologies still have certain limitations when processing complex rock samples, such as the efficiency of 3D laser scanning technology when processing a large amount of redundant data. In addition, for certain types of rocks, existing measurement methods cannot accurately identify structural surfaces or texture features.

[0007] Traditional rock sample analysis methods often rely on manual observation and simple measurement tools, which are not only time-consuming and labor-intensive, but also have poor accuracy and repeatability. Therefore, developing an automated device that can quickly and accurately measure the properties of rock samples has become an important research direction. Utility Model Content

[0008] In order to solve the above problems, an embodiment of the utility model provides an automatic measurement device for the physical properties of rock samples.

[0009] The utility model discloses an automatic measuring device for the physical properties of rock samples, comprising: a computer, an electric control box and a measuring component, wherein the measuring component is connected to the electric control box via a router and a network port, and the electric control box is connected to the computer; the measuring component comprises a rotating platform, on which the rock sample is placed, a linear array camera and a top 3D profile scanner are fixed to the rear side of the rotating platform, a side 3D profile scanner is arranged on the side of the rotating platform, and a shading plate is also installed in front of the rotating platform; the measuring component also comprises an external analytical balance, which is connected to the computer.

[0010] Optionally, the measuring component includes a base plate, a rotating platform is arranged on the base plate, a servo motor is arranged on one side of the rotating platform, a servo motor seat is installed between the servo motor and the rotating platform, a rotating table is arranged inside the rotating platform, the rotating table is connected to the output shaft of the servo motor through a worm gear, and a rock sample is placed on the rotating table.

[0011] Optionally, the rotation speed of the rotating table is 8 seconds per revolution.

[0012] Optionally, a shading plate frame is installed on the front side of the rotating platform, and a shading plate is installed on the shading plate frame, and the height of the shading plate is higher than the rock sample.

[0013] Optionally, a column is fixed on the rear side of the rotating platform on the bottom plate, the column is L-shaped, a linear array camera platform is installed on the middle inner side of the column, a linear array camera is fixed on the linear array camera platform, and a top 3D profile scanner is installed on the top of the column.

[0014] Optionally, a protrusion is provided forward at the top end of the column, and a top 3D profile scanner is installed on one side of the protrusion, and the top 3D profile scanner is located above the rotating platform.

[0015] Optionally, a support leg is provided on the left side of the rotating platform on the bottom plate, a side 3D profile scanner is mounted on the support leg, and a display, a network port and an emergency stop switch are mounted on the top surface of the side 3D profile scanner.

[0016] Optionally, a line light source is installed on one side of the linear array camera, the line light source corresponds to the rock sample, and the height of the line light source is higher than the rock sample.

[0017] Optionally, the side 3D profile scanner and the linear array camera are installed at positions no higher than the top of the rock sample.

[0018] The beneficial effects of the utility model are:

[0019] 1. Use a rotating platform to carry the rock sample for rotational measurement, obtain the top end face and side three-dimensional data, and perform precise measurement through the three-dimensional model to obtain the volume and end face parallelism and verticality of the rock sample, reduce manual operation, and improve measurement accuracy and precision.

[0020] 2. The computer communicates directly with the electronic balance to obtain the rock sample weighing data in real time and automatically calculate the rock sample density result, reducing manual data recording and calculation process, improving efficiency and avoiding errors caused by human factors.

[0021] 3. A color linear array camera is used to synchronously collect images of the rock sample surface during its rotation, which can obtain high-precision images with uniform brightness, accurate position, and bright colors, facilitating subsequent outlining, archiving, and tracing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the measuring component of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the rotating platform of the utility model.

[0024] Figure 3 It is the front view of the utility model.

[0025] Figure 4 It is a side calibration schematic diagram of an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1-touch screen; 2-side 3D profile scanner; 3-mounting frame; 4-mounting legs; 5-base plate; 6-top 3D profile scanner; 7-column; 8-line light source; 9-router; 10-line array camera; 11-rock sample; 12-rotating table; 13-worm gear: 14-rotating platform; 15-servo motor; 16-servo motor seat; 17-emergency stop switch; 18-network port; 19-electric control box; 20-line array camera platform; 21-detection box shell; 22-shading plate frame; 23-shading plate. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0029] like Figure 1-Figure 4 As shown, the automatic measuring device for the physical properties of rock samples of the utility model includes a computer, an electric control box 19 and a measuring component. The measuring component is connected to the electric control box 19 through a router 9 and a network port 18, and the electric control box 19 is connected to the computer; the results measured by the measuring component are transmitted to the electric control box 19 through the router 9 and the network port 18, and the electric control box 19 transmits the results to the computer.

[0030] The measuring assembly includes a rotating platform 14, on which a rock sample 11 is placed, a linear array camera 10 and a top 3D profile scanner 6 are fixed to the rear side of the rotating platform 14, a side 3D profile scanner 2 is arranged on the side of the rotating platform 14, and a light shielding plate 23 is installed in front of the rotating platform 14; the measuring assembly also includes an external analytical balance, which is connected to a computer. A linear light source 8 is installed on one side of the linear array camera 10, and the linear light source 8 corresponds to the rock sample 11, and the height of the linear light source 8 is higher than the rock sample 11.

[0031] The cross-sectional area of ​​the rock sample 11 is measured by scanning the side of the rock sample 11 with the side 3D profile scanner 2 to form a point cloud, and calculating the cross-sectional diameter through algorithm recognition of the point cloud; the height of the rock sample 11 is measured by scanning the top of the rock sample 11 with the top 3D profile scanner 6 to form a point cloud, and calculating the height of the rock sample through algorithm recognition. The weight of the rock sample 11 is measured by an external analytical balance.

[0032] The linear array camera 10 and the linear light source 8 are used to photograph the side of the rock sample 11 and piece them together into a plane image for artificially outlining the texture.

[0033] The measuring assembly includes a base plate 5, on which a rotating platform 14 is fixedly arranged. Figure 2 As shown, a servo motor 15 is provided on one side of the rotating platform 14, and a servo motor seat 16 is installed between the servo motor 15 and the rotating platform 14 to ensure accurate rotation control. A rotating table 12 is provided inside the rotating platform 14, and the rotating table 12 is connected to the output shaft of the servo motor 15 through a worm gear 13, and a rock sample 11 is placed on the rotating table 12. The worm gear 13 is connected to the output shaft of the servo motor 15 through a gear (not shown).

[0034] The rotation speed of the rotating table 12 is 8 seconds per revolution. In order to accurately monitor the rotation position of the rotating platform 14, an encoder is also installed on the rotating table 12.

[0035] A shading plate frame 22 is installed on the front side of the rotating platform 14, and a shading plate 23 is installed on the shading plate frame 22. The height of the shading plate 23 is higher than the rock sample 11. The shading plate 23 is used to prevent external light from interfering with the detection process.

[0036] A column 7 is fixed to the rear side of the rotating platform 14 on the base plate 5. The column 7 is L-shaped. A linear array camera platform 20 is installed on the middle inner side of the column 7. A linear array camera 10 is fixed on the linear array camera platform 20. A top 3D contour scanner 6 is installed on the top of the column 7.

[0037] A protrusion is provided forward at the top of the column 7 , and the top 3D profile scanner 6 is installed on one side of the protrusion, and the top 3D profile scanner 6 is located above the rotating platform 14 .

[0038] The line scan camera 10 is used to capture high-resolution images of the sample 11 .

[0039] A line light source 8 is disposed inside the line array camera 10 . The line light source 8 is mounted on the bottom plate 5 via a fixing frame and is responsible for adjusting the brightness and stability to meet different detection requirements.

[0040] A router 9 is also installed on the bottom plate, and the router 9 is connected to the electric control box 19 .

[0041] A support leg 4 is provided on the left side of the rotating platform 14 on the bottom plate 5 , and a side 3D profile scanner 2 is mounted on the support leg 4 . A touch screen 1 , a network port 18 and an emergency stop switch 17 are mounted on the top surface of the side 3D profile scanner 2 .

[0042] The installation positions of the side 3D profile scanner 2 and the linear array camera 10 are both no higher than the top of the rock sample 11 .

[0043] The side 3D profile scanner 2 and the top 3D profile scanner 6 can capture the three-dimensional profile of the rock sample 11 and provide high-precision image data for detection.

[0044] The side 3D profile scanner 2 is covered with a detection box housing 21, which is fixed on the bottom plate 5. A display hole is provided on the upper left side of the detection box housing 21 for installing a touch screen 1 so that the operator can monitor the monitoring process in real time. An Internet port 18 and an emergency stop switch 17 are installed on the right side of the display hole to ensure the safe operation of the equipment.

[0045] The whole device is controlled by PLC, which can realize functions such as turntable speed adjustment and shooting control; it is equipped with a computer system to display the detection signal in real time; after the test is completed, a test report is automatically generated, and historical data of various parameters, test reports, etc. can be exported.

[0046] The detailed measurement process of the automatic measurement device for physical properties of rock samples of the utility model is as follows:

[0047] 1. Each device is powered on for self-inspection, and the rock sample density detection program is started on the computer. After the self-inspection is completed, it enters the standby state.

[0048] 2. Start the test process on the computer, and the interface displays guidance information, such as "Please place the rock sample in the analytical balance tray.

[0049] 3. Manually place the rock sample 11 to be tested on the analytical balance according to the guidance information. After the weighing value stabilizes, press the "Print" button of the analytical balance to complete the collection of weighing information. The computer interface automatically displays the weighing data and displays the next step guidance information, such as "Please place the rock sample on the rotating platform 14".

[0050] 4. Manually place the rock sample 11 to be tested on the rotating platform 14 according to the guidance information, and click the "Start Measurement" button on the touch screen 1. At this time, the servo motor 15 is started, actively driving the rotating table 12 to rotate, and the rock sample 11 rotates 8 seconds / week on the rotating table 12; at the same time, the top 3D profile scanner 6 directly above the rock sample 11 and the side 3D profile scanner 2 on the side scan the rock sample 11, and the line light source 8 adjusts the brightness and stability of the light source to meet different measurement requirements. After the scanning is completed, the information is transmitted to the electric control box 19 and the computer through the router 9 and the network port 18. The computer interface automatically displays the rock sample volume measurement data, and calculates and displays the density results.

[0051] 5. If the measurement is complete, click Done on the computer interface (or click Done on the volume meter touch screen).

[0052] 6. If you need to test the next rock sample 11, repeat steps 2 to 5. (You can add a batch test function to perform tests continuously).

[0053] The measuring equipment is equipped with a calibration device, and the equipment should be calibrated regularly during use.

[0054] The 3D scanner is calibrated by a straight line calibration method. When calibrating the top 3D contour scanner 6, the rock sample 11 on the rotating table 12 is removed and calibrated as a reference plane of Z=0 with the turntable plane as the reference.

[0055] When calibrating the side 3D profile sensor 2, remove the rock sample and install it on a flat plate tangent to the center of the circle. Use the flat plate surface as a reference to calibrate the reference surface of X(Y)=0 to complete the calibration, such as Figure 4 shown.

[0056] The utility model provides a device for measuring the volume of rock samples by scanning the rock samples through 3D scanning technology, and then automatically calculating the diameter / height / volume / missing volume and other parameters of the rock samples, and transforming the previous manual operation into a fully automatic rock sample volume measurement device. The device can automatically generate the test report, provide a guarantee for the tracing of each information, and can also scan and save the side unfolded image of the rock sample, and mark various textures on the side image, so that the side of the rock sample enters the era of image tracing, so that the work efficiency is significantly improved, and the measurement accuracy is significantly improved.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An automatic measuring device for the physical properties of rock samples, characterized in that: include: A computer, an electric control box and a measuring component, wherein the measuring component is connected to the electric control box through a router and a network port, and the electric control box is connected to the computer; The measuring assembly comprises a rotating platform, on which a rock sample is placed, a linear array camera and a top 3D profile scanner are fixed to the rear side of the rotating platform, a side 3D profile scanner is arranged on the side of the rotating platform, and a shading plate is also installed in front of the rotating platform; The measuring component also includes an external analytical balance, which is connected to the computer.

2. The automatic measuring device for physical properties of rock samples according to claim 1 is characterized in that: The measuring assembly comprises a base plate, a rotating platform is arranged on the base plate, a servo motor is arranged on one side of the rotating platform, a servo motor seat is installed between the servo motor and the rotating platform, a rotating table is arranged inside the rotating platform, the rotating table is connected to the output shaft of the servo motor through a worm gear, and a rock sample is placed on the rotating table.

3. The automatic measuring device for physical properties of rock samples according to claim 2 is characterized in that: The rotation speed of the rotating table is 8 seconds per revolution.

4. The automatic measuring device for physical properties of rock samples according to claim 2 is characterized in that: A shading plate frame is installed on the front side of the rotating platform, and a shading plate is installed on the shading plate frame. The height of the shading plate is higher than the rock sample.

5. The automatic measuring device for physical properties of rock samples according to claim 2 is characterized in that: A column is fixed on the rear side of the rotating platform on the bottom plate, the column is L-shaped, a linear array camera platform is installed on the middle inner side of the column, a linear array camera is fixed on the linear array camera platform, and a top 3D profile scanner is installed on the top of the column.

6. The automatic measuring device for the physical properties of rock samples according to claim 5 is characterized in that: The top end of the column is provided with a protrusion facing forward, and a top 3D profile scanner is installed on one side of the protrusion, and the top 3D profile scanner is located above the rotating platform.

7. The automatic measuring device for physical properties of rock samples according to claim 5 is characterized in that: A support leg is provided on the left side of the rotating platform on the bottom plate, a side 3D profile scanner is installed on the support leg, and a display, a network port and an emergency stop switch are installed on the top surface of the side 3D profile scanner.

8. The automatic measuring device for physical properties of rock samples according to claim 5 is characterized in that: A line light source is installed on one side of the linear array camera, the line light source corresponds to the rock sample, and the height of the line light source is higher than the rock sample.

9. The automatic measuring device for physical properties of rock samples according to claim 7, characterized in that: The installation positions of the side 3D profile scanner and the linear array camera are not higher than the top of the rock sample.

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