CN214503185U - Non-contact rock mechanics single-axis test observation device - Google Patents
Non-contact rock mechanics single-axis test observation device Download PDFInfo
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- CN214503185U CN214503185U CN202120632689.5U CN202120632689U CN214503185U CN 214503185 U CN214503185 U CN 214503185U CN 202120632689 U CN202120632689 U CN 202120632689U CN 214503185 U CN214503185 U CN 214503185U
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- bearing platform
- rock
- circular ring
- test piece
- ring bearing
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Abstract
The utility model relates to the technical field of rock-soil mechanical tests, in particular to a non-contact rock-soil mechanical single-shaft test observation device, which comprises a sample loading mechanism, an image acquisition mechanism and a control mechanism; the sample loading mechanism is used for loading the rock test piece; the image acquisition mechanism is used for acquiring real-time and multi-angle images of the rock test piece in the loading process through a plurality of cameras, and the rock test piece can be completely displayed in the visual angle of the cameras by adjusting the image acquisition mechanism; the control mechanism can control the operation of the electro-hydraulic telescopic mechanism of the sample loading mechanism and the opening of the camera and the denoising light source of the image acquisition mechanism, and can store real-time data recorded by the camera of the image acquisition mechanism. The utility model discloses can measure the real-time deformation data of rock test piece more accurately, can realize the research to the complete stress-strain curve of rock.
Description
Technical Field
The utility model relates to a ground mechanical test technical field, concretely relates to non-contact rock mechanics unipolar test observation device.
Background
At present, the common method for measuring rock deformation is to use contact methods such as an extensometer and a strain gauge for measurement, and the contact measurements of the extensometer and the strain gauge not only can cause influence on the surface of a test piece, but also have complicated installation steps. Along with the test, part of the initial cracks in the rock begin to close, and along with the test, new cracks begin to germinate and develop and finally penetrate to cause the damage of the rock test piece. At this time, the strain gauge and the extensometer cannot accurately measure the deformation of the test piece, and in order to break through the limitations of traditional deformation measurement methods such as the strain gauge and the extensometer, the non-contact rock mechanics single-axis test observation device is especially necessary to be developed for analyzing the whole-field deformation, the local deformation, the shear band evolution process and the like of the rock.
SUMMERY OF THE UTILITY MODEL
The utility model provides a non-contact rock mechanics single axis test observation device has solved traditional extensometer, strainometer method and can not the accurate technical problem who measures the deformation data of rock test piece when rock test piece warp and destroys.
In order to solve the technical problem, the utility model discloses a non-contact rock mechanics single-axis test observation device, which comprises a sample loading mechanism, an image acquisition mechanism and a control mechanism; the sample loading mechanism comprises a framework, the framework comprises a base, side baffles positioned on two sides of the base and a cross beam above the side baffles, an electrohydraulic telescoping mechanism is arranged at the top of the base, a telescopic rod of the electrohydraulic telescoping mechanism is abutted to the bottom of the platform, a cushion block is arranged in the center of the top of the platform, a rock sample bearing platform is arranged at the top of the cushion block, a rock sample is placed at the top of the rock sample bearing platform, the rock sample bearing platform is also placed at the top of the rock sample, the rock sample bearing platform at the top of the rock sample is opposite to the bottom of an upper extrusion column, and the top of the extrusion column is fixed at the bottom of the cross beam through a connecting seat;
the image acquisition mechanism comprises a first circular ring bearing platform, a foot rest is arranged at the bottom of the first circular ring bearing platform, the foot rest is placed at the top of the platform, the first circular ring bearing platform is connected with a second circular ring bearing platform through a first switching mechanism, a denoising light source is installed on the inner ring side of the second circular ring bearing platform, a movable bolt is installed in a movable bolt sliding groove in the second circular ring bearing platform, the top of the movable bolt is connected with a second switching mechanism above the second circular ring bearing platform, and a camera is placed at the top of the second switching mechanism; the first circular ring bearing platform and the second circular ring bearing platform are both horizontally arranged and are parallel to each other, and the rock test piece is positioned on the central axis of the first circular ring bearing platform and the second circular ring bearing platform;
the control mechanism is a computer device comprising a data processor, a data storage, a program stored on the data storage and operable on the data processor.
Furthermore, the bottom of the platform is provided with a positioning hole matched with a telescopic rod of the electro-hydraulic telescopic mechanism.
Furthermore, the first switching mechanism comprises a first concave groove body, the first concave groove body is sleeved with a first sliding block through a guide rod, an inner cavity of the first concave groove body drives the first sliding block through a first lead screw, one end of the first lead screw, which extends out of the first concave groove body, is connected with a first embossing hand wheel, and one side of the first sliding block is provided with a first fixed handle; the second switching mechanism and the second switching mechanism have the same structure and comprise a second concave groove body, a second guide rod, a second sliding block, a second screw rod, a second embossing hand wheel and a second fixed handle.
Furthermore, the first switching mechanism is vertically arranged, the end face of one side of the concave groove body is connected with the top of the first circular ring bearing platform through a bolt, and the first sliding block is welded with the outer side wall of the first circular ring bearing platform; the second switching mechanism is horizontally arranged, the bottom end face of the second concave groove body is in threaded connection with the movable bolt at the top of the second circular bearing platform, and the camera is placed at the top of the second sliding block.
Furthermore, the number of the cameras is 9, and the cameras are arranged on the circumference of the circular ring bearing platform II in a 360-degree surrounding manner; the three adjacent cameras are respectively in two wide-angle modes and one macro mode, and the camera in the macro mode is arranged between the two cameras in the wide-angle modes; the denoising light source is an LED high-low angle machine vision light source.
Furthermore, the electro-hydraulic telescopic mechanism, the denoising light source and the camera are all electrically connected with the control mechanism.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses surround on the circumference of ring cushion cap two of image acquisition mechanism and arranged 9 cameras, and adjacent three camera is two wide angle modes and a microspur mode respectively, and the camera of microspur mode is arranged between the camera of two wide angle modes, and this design can carry out real-time, multi-angle image acquisition to the rock test piece in the loading process, arranges the deformation information of the record rock test piece that the camera of two kinds of modes can be accurate moreover.
The utility model discloses image acquisition mechanism simple structure, compactness, the equipment is easy with the dismantlement: the first ring bearing platform of the image acquisition mechanism of the utility model is connected with the second ring bearing platform through the first switching mechanism, wherein the end surface of one side of the concave groove body of the first switching mechanism is connected with the top bolt of the first ring bearing platform, and the bolt connection and disassembly are convenient, so that the first switching mechanism can be conveniently assembled and disassembled with the first ring bearing platform; the top of the movable bolt in the movable bolt sliding groove in the second circular bearing platform is in threaded connection with the bottom end face of the second concave groove body of the second switching mechanism, the second switching mechanism can be conveniently detached and assembled with the movable bolt of the second circular bearing platform, and the camera is arranged at the top of the second sliding block and can be flexibly adjusted.
The utility model discloses regulation that the camera can be nimble, the data degree of accuracy of camera record is high: when the height of the camera needs to be adjusted in the test process, the first embossing hand wheel can be rotated, the first embossing hand wheel drives the first sliding block to lift through the first screw rod, and the first sliding block drives the second circular bearing platform to lift, so that the height of the camera can be adjusted; when the radial position of the camera needs to be adjusted, the second embossing hand wheel can be rotated, the second embossing hand wheel drives the second sliding block to move forward and backward through the second screw rod, and the second sliding block drives the camera to move forward and backward so as to adjust the radial position of the camera.
The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and to implement the technical solution according to the content of the description, the present invention will be further described in detail with reference to the attached drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic diagram of the overall structure of a non-contact rock mechanics single-axis test observation device of the utility model;
FIG. 2 is an enlarged view of a partial structure of a non-contact rock mechanics single-axis test observation device of the present invention;
FIG. 3 is a front view of the overall structure of a non-contact rock mechanics single-axis test observation device of the present invention;
fig. 4 is a schematic platform diagram of a non-contact rock mechanics single-axis test observation device of the present invention;
fig. 5 is a schematic structural view of a first switching mechanism and a second switching mechanism of the non-contact rock mechanics single-axis test observation device of the utility model;
FIG. 6 is a schematic structural view of a circular ring bearing platform II of the non-contact rock mechanics single-axis test observation device of the present invention;
fig. 7 is a schematic diagram of a movable bolt structure of a non-contact rock mechanics single-axis test observation device of the present invention;
fig. 8 is a schematic diagram of a movable bolt sliding groove structure of a non-contact rock mechanics single-axis test observation device of the present invention;
the specification reference numbers indicate:
1. a sample loading mechanism; 101. a framework; 1011. a base; 1012. a side dam; 1013. a cross beam; 102. an electro-hydraulic telescopic mechanism; 103. a platform; 1031. positioning holes; 104. cushion blocks; 105. a rock test piece bearing platform; 106. a rock test piece; 107. extruding the column; 108. a connecting seat;
2. an image acquisition mechanism; 201. a first circular ring bearing platform; 202. a foot rest; 203. a first switching mechanism; 2031. a first concave groove body; 2032. a first guide rod; 2033. a first sliding block; 2034. a first screw rod; 2035. embossing a first hand wheel; 2036. fixing a first handle; 204. a circular ring bearing platform II; 2041 a removable bolt; 2042 a movable bolt slide; 205. denoising the light source; 206. a second switching mechanism; 2061. a concave groove body II; 2062. a second guide rod; 2063. a second sliding block; 2064. a second screw rod; 2065. embossing a hand wheel II; 2066. a second fixed handle; 207. a camera;
3. and a control mechanism.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 8, an embodiment of the present invention provides a non-contact rock mechanics single-axis test observation device, which includes a sample loading mechanism 1, an image acquisition mechanism 2, and a control mechanism 3; the sample loading mechanism 1 is used for loading a rock sample and comprises a framework 101, the framework 101 comprises a base 1011, side baffles 1012 positioned on two sides of the base 1011 and a cross beam 1013 above the side baffles, the top of the base 1011 is provided with an electro-hydraulic telescopic mechanism 102, a telescopic rod of the electro-hydraulic telescopic mechanism 102 abuts against the bottom of a platform 103, the center of the top of the platform 103 is provided with a cushion block 104, the top of the cushion block 104 is provided with a rock sample bearing platform 105, the top of the rock sample bearing platform 105 is provided with a rock sample 106, the top of the rock sample 106 is also provided with the rock sample bearing platform 105, the rock sample bearing platform 105 at the top of the rock sample 106 is opposite to the bottom of an extrusion column 107 above the rock sample bearing platform, the cushion block 104 and the central axes of the rock sample bearing platform 105, the rock sample 106 and the extrusion column 107 are on the same vertical line, and the top of the extrusion column 107 is fixed at the bottom of the cross beam 1013 through a connecting seat 108; the image acquisition mechanism 2 comprises a first circular ring bearing platform 201, a foot rest 202 is arranged at the bottom of the first circular ring bearing platform 201, the foot rest 202 is placed at the top of the platform 103, the first circular ring bearing platform 201 is connected with a second circular ring bearing platform 204 through a first adapter mechanism 203, a denoising light source 205 is installed on the inner ring side of the second circular ring bearing platform 204, a movable bolt 2041 is installed in a movable bolt sliding groove 2042 in the second circular ring bearing platform 204, the top of the movable bolt 2041 is connected with a second adapter mechanism 206 above the second circular ring bearing platform 204, and a camera 207 is placed at the top of the second adapter mechanism 206; the first circular ring bearing platform 201 and the second circular ring bearing platform 204 are horizontally arranged and are parallel to each other, and the rock test piece 106 is positioned on the central axis of the first circular ring bearing platform 201 and the second circular ring bearing platform 204; the control means 3 is a computer device comprising a data processor, a data storage, a program stored on the data storage and executable on the data processor.
The bottom of the platform 103 is provided with a positioning hole 1031 matched with the telescopic rod of the electro-hydraulic telescopic mechanism 102, and the telescopic rod of the electro-hydraulic telescopic mechanism 102 extends into the positioning hole 1031 at the bottom of the platform 103 to ensure that the telescopic rod of the electro-hydraulic telescopic mechanism 102 is connected with the platform 103 more stably; the first switching mechanism 203 comprises a first concave groove 2031, the first concave groove 2031 is sleeved with a first sliding block 2033 through a first guide rod 2032, an inner cavity of the first concave groove 2031 drives the first sliding block 2033 through a first lead screw 2034, one end, extending out of the concave groove 2031, of the first lead screw 2034 is connected with a first embossing hand wheel 2035, and one side of the first sliding block 2033 is provided with a first fixed handle 2036; the second switching mechanism 206 and the first switching mechanism 203 have the same structure and comprise a second concave groove 2061, a second guide rod 2062, a second sliding block 2063, a second screw rod 2064, a second embossing hand wheel 2065 and a second fixed handle 2066, wherein the first fixed handle 2036 and the second fixed handle 2066 are respectively used for fixing the first sliding block 2033 and the second sliding block 2063; the first switching mechanism 203 is vertically arranged, a threaded hole is formed in the end face of the first concave groove body 2031, a threaded through hole is also formed in the first circular ring bearing platform 201, the end face of the first concave groove body 2031 can be connected with the top of the first circular ring bearing platform 201 through a bolt, and the first slider 2033 is welded with the outer side wall of the second circular ring bearing platform 204; the second switching mechanism 206 is horizontally arranged, a threaded hole is formed in the bottom end face of the second concave groove body 2061, the threaded hole in the bottom end face of the second concave groove body 2061 can be in threaded connection with the movable bolt 2041 at the top of the second circular ring bearing platform 204, and the camera 207 is placed at the top of the second sliding block 2063; the number of the cameras 207 is 9, and the cameras are arranged on the circumference of the second circular bearing platform 204 in a 360-degree surrounding mode; the three adjacent cameras 207 are respectively in two wide-angle modes and one macro mode, the camera 207 in the macro mode is arranged between the two cameras 207 in the wide-angle modes, and the cameras in the two modes can accurately capture deformation information of the rock test piece 106; the denoising light source is an LED high-low angle machine vision light source; the electro-hydraulic telescopic mechanism 102, the denoising light source 205 and the camera 207 are electrically connected with the control mechanism 3, and the on and off of the electro-hydraulic telescopic mechanism 102, the denoising light source 205 and the camera 207 are controlled by the control mechanism 3.
The utility model discloses concrete theory of operation:
placing the electro-hydraulic telescopic mechanism 102 in the center of the top of the base 1011, then placing a positioning hole 1031 in the bottom of the platform 103 on a telescopic rod of the electro-hydraulic telescopic mechanism 102, and then sequentially placing a cushion block 104, a rock test piece bearing platform 105, a rock test piece 106 and the rock test piece bearing platform 105 on the top of the platform 103; after the rock test piece 106 is placed, the image acquisition mechanism 2 is adjusted, a first circular bearing platform 201 of the image acquisition mechanism 2 is placed on the platform 103 through a foot rest 202, a first embossing hand wheel 2035 is rotated, the first embossing hand wheel 2035 drives a first sliding block 2033 to ascend and descend through a first screw rod 2034, the first sliding block 2033 drives a second circular bearing platform 204 to ascend and descend to adjust the camera 207 to a proper height to be aligned with the rock test piece 106, when the radial position of the camera 207 needs to be adjusted, a second embossing hand wheel 2065 can be rotated, the second embossing hand wheel 2065 drives a second sliding block 2063 to advance and retreat through a second screw rod 2064, and the second sliding block 2063 drives the camera 207 to advance and retreat to realize the adjustment of the radial position of the camera 207; after the image acquisition mechanism 2 is adjusted, the control mechanism 3 controls the telescopic rod of the electro-hydraulic telescopic mechanism 102 to ascend and jack up the platform 103, the platform 103 drives the rock test piece 106 and the image acquisition mechanism 2 to ascend together, when the rock test piece bearing platform 105 on the top of the rock test piece 106 props up the extrusion column 107 at the bottom of the cross beam 1013, the rock test piece 106 starts to be extruded and deformed, the rock test piece 106 can be shot by the camera 207 of the image acquisition mechanism 2 in the whole extrusion deformation process, the camera 207 transmits the deformation data of the rock test piece 106 to the memory of the control mechanism 3, and the rock test piece 106 can be subjected to real-time deformation analysis by processing the deformation data of the rock test piece 106 on the memory.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. A non-contact rock mechanics single-axis test observation device is characterized by comprising a sample loading mechanism (1), an image acquisition mechanism (2) and a control mechanism (3); the sample loading mechanism (1) comprises a framework (101), the framework (101) comprises a base (1011), side baffles (1012) positioned at two sides of the base (1011) and a cross beam (1013) above, the top of the base (1011) is provided with an electro-hydraulic telescopic mechanism (102), the telescopic rod of the electro-hydraulic telescopic mechanism (102) is propped against the bottom of the platform (103), a cushion block (104) is arranged in the center of the top of the platform (103), a rock test piece bearing platform (105) is arranged on the top of the cushion block (104), a rock test piece (106) is placed on the top of the rock test piece bearing platform (105), the rock test piece bearing platform (105) is also placed on the top of the rock test piece (106), and the rock test piece bearing platform (105) at the top of the rock test piece (106) is just opposite to the bottom of the upper extrusion column (107), the top of the extrusion column (107) is fixed at the bottom of the cross beam (1013) through a connecting seat (108);
the image acquisition mechanism (2) comprises a first circular ring bearing platform (201), a foot rest (202) is arranged at the bottom of the first circular ring bearing platform (201), the foot rest (202) is placed at the top of the platform (103), the first circular ring bearing platform (201) is connected with a second circular ring bearing platform (204) through a first switching mechanism (203), a denoising light source (205) is installed on the inner ring side of the second circular ring bearing platform (204), a movable bolt (2041) is installed in a movable bolt sliding groove (2042) in the second circular ring bearing platform (204), the top of the movable bolt (2041) is connected with a second switching mechanism (206) above the second circular ring bearing platform (204), and a camera (207) is placed at the top of the second switching mechanism (206); the first circular ring bearing platform (201) and the second circular ring bearing platform (204) are horizontally arranged and are parallel to each other, and the rock test piece (106) is positioned on the central axis of the first circular ring bearing platform (201) and the second circular ring bearing platform (204);
the control mechanism (3) is a computer device comprising a data processor, a data memory, a program stored on the data memory and operable on the data processor.
2. The non-contact rock mechanics single-axis test observation device according to claim 1, characterized in that a positioning hole (1031) matched with a telescopic rod of the electro-hydraulic telescopic mechanism (102) is formed in the bottom of the platform (103).
3. The non-contact rock mechanics uniaxial test observation device according to claim 1, wherein the first switching mechanism (203) comprises a first concave groove body (2031), the first concave groove body (2031) is sleeved with a first sliding block (2033) through a first guide rod (2032), an inner cavity of the first concave groove body (2031) drives the first sliding block (2033) through a first lead screw (2034), one end of the first lead screw (2034) extending out of the first concave groove body (2031) is connected with a first embossing hand wheel (2035), and one side of the first sliding block (2033) is provided with a first fixing handle (2036); the second switching mechanism (206) and the first switching mechanism (203) have the same structure and comprise a second concave groove body (2061), a second guide rod (2062), a second sliding block (2063), a second screw rod (2064), a second embossing hand wheel (2065) and a second fixed handle (2066).
4. The non-contact rock mechanics uniaxial test observation device according to claim 3, characterized in that the first switching mechanism (203) is vertically arranged, the side end face of the first concave groove body (2031) is connected with a top bolt of the first circular bearing platform (201), and the first sliding block (2033) is welded with the outer side wall of the second circular bearing platform (204); the second switching mechanism (206) is horizontally arranged, the bottom end face of the concave groove body (2061) is in threaded connection with the movable bolt (2041) at the top of the second circular bearing platform (204), and the camera (207) is placed at the top of the second sliding block (2063).
5. The non-contact rock mechanical uniaxial test observation device as recited in claim 1, wherein the number of the cameras (207) is 9, and the cameras are arranged on the circumference of the second circular bearing platform (204) in a 360-degree surrounding manner; and three adjacent cameras (207) are respectively in two wide-angle modes and one macro mode, and the camera (207) in the macro mode is arranged between the cameras (207) in the two wide-angle modes; the denoising light source (205) is an LED high-low angle machine vision light source.
6. The non-contact rock mechanics uniaxial test observation device according to claim 1, characterized in that the electrohydraulic telescoping mechanism (102), the denoising light source (205) and the camera (207) are all electrically connected with the control mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120632689.5U CN214503185U (en) | 2021-03-29 | 2021-03-29 | Non-contact rock mechanics single-axis test observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120632689.5U CN214503185U (en) | 2021-03-29 | 2021-03-29 | Non-contact rock mechanics single-axis test observation device |
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| Publication Number | Publication Date |
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| CN214503185U true CN214503185U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120632689.5U Expired - Fee Related CN214503185U (en) | 2021-03-29 | 2021-03-29 | Non-contact rock mechanics single-axis test observation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088515A (en) * | 2021-11-02 | 2022-02-25 | 国家高速列车青岛技术创新中心 | Monocular vision multi-view crack propagation monitoring device |
| CN116793861A (en) * | 2023-08-28 | 2023-09-22 | 安徽建筑大学 | Irregular rock mass shear test device |
-
2021
- 2021-03-29 CN CN202120632689.5U patent/CN214503185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088515A (en) * | 2021-11-02 | 2022-02-25 | 国家高速列车青岛技术创新中心 | Monocular vision multi-view crack propagation monitoring device |
| CN116793861A (en) * | 2023-08-28 | 2023-09-22 | 安徽建筑大学 | Irregular rock mass shear test device |
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Granted publication date: 20211026 |