CN215640030U - Intelligent dynamics test device for low-temperature frozen rock fracture process recognition - Google Patents
Intelligent dynamics test device for low-temperature frozen rock fracture process recognition Download PDFInfo
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- CN215640030U CN215640030U CN202122289916.1U CN202122289916U CN215640030U CN 215640030 U CN215640030 U CN 215640030U CN 202122289916 U CN202122289916 U CN 202122289916U CN 215640030 U CN215640030 U CN 215640030U
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Abstract
The utility model provides an intelligent dynamics test device for identifying a low-temperature frozen rock cracking process, and belongs to the technical field of impact dynamics. The device comprises a stress-strain gauge, an incident rod, a transmission rod, a protection box and a sealing test box; the stress-strain gauge is connected with the incident rod and the transmission rod, the sealed test box is arranged in the protection box, the left side and the right side of the protection box are provided with holes and are sealed by a sealed transparent cover, and a hole is formed in the center of the sealed transparent cover and is used for the incident rod and the transmission rod to enter and exit the protection box; the sealing test box comprises a temperature regulation and control system, an intelligent control valve and an intelligent mechanical arm; a lifting base is arranged in the sealing test box, and the photographic cloud system comprises a camera and a network platform; the device can carry out the impact dynamics test under the dual condition of explosive shock load application and low temperature freezing to the rock sample to obtain the higher data of precision and analyze the destruction characteristic of rock sample, carry out the experimental study of sample surface crack propagation under the low temperature state.
Description
Technical Field
The utility model relates to the technical field of impact dynamics, in particular to an intelligent dynamics test device for identifying a low-temperature frozen rock cracking process.
Background
With the continuous improvement of the scientific technology for mining mineral resources in China, exploration of damage characteristics by applying explosive impact load to low-temperature frozen rock samples is beneficial to selection of broken rocks in plateau alpine regions and the like. In recent years, the technology of applying impact load or performing low-temperature treatment on rock samples is further improved, the impact dynamics test for researching the damage characteristics of the rock samples under the alpine condition is gradually emphasized, and the key factor for the success of the impact dynamics test under the alpine condition is the environment with controllable temperature and the application of explosive impact load.
At present, the low-temperature treatment technology mainly performs low-temperature regulation and control on the exterior of a rock sample through liquid nitrogen, liquid carbon dioxide and the like, and a few technologies can perform low-temperature regulation and control from the interior of the rock sample.
The existing test for measuring the damage characteristics of the low-temperature frozen rock sample under the condition of impact load has a plurality of steps, the rock sample is subjected to saturated water low-temperature treatment firstly, then the impact load is applied, and the steps are repeated, so that a large amount of time is wasted, and the test data is inaccurate; moreover, the impact dynamics test involves a metal rod, and placing the metal rod in a low-temperature environment easily causes the property of the metal rod to be changed, so that the test precision is reduced, and the test equipment can be seriously damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligent dynamics test device for identifying the cracking process of low-temperature frozen rocks for measuring the damage characteristics of alpine rocks under the condition of impact load, which can measure the damage characteristics of rock samples under the dual conditions of the condition of impact load and the low-temperature environment, regulate the environment temperature, change the load application times under the condition that test pieces are not completely damaged, realize high-precision cyclic impact dynamics test and ensure that the data obtained by testing has accuracy and research.
The device comprises a stress-strain gauge, an incident rod, a transmission rod, a protection box and a sealing test box; the stress-strain gauge is connected with the incident rod and the transmission rod through the strain gauge by leads and used for measuring the stress-strain curve of a rock sample, the left side and the right side of the protective box are both provided with holes and sealed by a sealed transparent cover, the center of the sealed transparent cover is provided with a hole for the incident rod and the transmission rod to enter and exit the protective box, the left side of the bottom surface of the protective box is provided with a line dredging hole, the sealed test box is arranged in the protective box through a supporting rod of the sealed test box, the sealed test box comprises a temperature regulating system, an intelligent control valve and an intelligent mechanical arm, the temperature regulating system comprises an intelligent refrigerating system, a temperature sensor and a temperature display, the temperature display is connected with the intelligent refrigerating system and the temperature sensor, the temperature sensor is arranged in a temperature sensor mounting hole at the top of the sealed test box, the bottom of the sealed test box is connected with a guide pipe, and the refrigerant of the intelligent refrigerating system circulates through the guide pipe, the intelligent control valve consists of an intelligent switch and an intelligent valve, the intelligent valve is arranged on the left side and the right side of the bottom of the sealing test box, the intelligent switch controls the operation, the intelligent valve is opened, the incident rod and the transmission rod extend into the sealing test box to carry out an impact dynamics test, the intelligent valve is closed, and the sealing test box is ensured to be sealed; be equipped with the lift base in the sealed test case, four intelligent robotic arm install in the sealed test case preceding with the both sides that the central point put at the back, the photographic cloud system includes camera and network platform, and the camera mounting hole is arranged respectively in to three camera, puts at the sealed test case preceding, the central point at the back and top surface and respectively sets up a camera mounting hole.
The protection box is mainly used for protecting the test environment and preserving heat, and preventing fragments or liquid of the test piece from flying out caused by improper tests.
The temperature display is provided with two temperature marks, one is the temperature in the sealing box which can be set, and the other is the real-time temperature in the sealing box. The intelligent refrigeration system can intelligently regulate and control the temperature in the sealed test box according to the actual temperature and the set temperature provided by the temperature display.
The lifting base comprises a lifting platform and a lifting rod, one end of the lifting rod is connected with the lifting platform, the other end of the lifting rod penetrates through a fourth hole of the sealing test box and a third hole of the bottom of the protection box, a rock sample is placed on the lifting platform, and the lifting base ensures that the center of the rock sample, the incident rod and the transmission rod are located on the same axial lead.
The open hole positions of the sealing test box adopt a coupling nesting installation mode, so that the influence of large air flow temperature change on the test result is prevented. And heat-insulating rocks are filled in the interlayer parts of the sealing test box and the protection box.
The intelligent control valve is provided with a valve convolution position and a valve stopping position, the upper portion of the intelligent control valve is the valve convolution position, the lower portion of the intelligent control valve is the valve stopping position, the opening of the intelligent control valve corresponds to a sealing test box groove of the sealing test box and a joint of the valve and the sealing test box, and the joint of the valve and the sealing test box ensures good sealing between the intelligent control valve and the sealing test box.
The intelligent mechanical arm main part is the mechanical bar, and mechanical bar one end sets up the plastic sheet, can stir the rock sample, and the other end passes hole one on the sealed proof box and the hole two of guard box in proper order, and intelligent mechanical arm can change. And the intelligent mechanical arm is used for finely adjusting the position of the rock sample and preventing the test piece from rolling.
The intelligent control valve can be convoluted together, and is convenient for deposit.
The photographic cloud system is used for photographing at a high speed in the test process and monitoring the test environment in the sealed test box.
The technical scheme of the utility model has the following beneficial effects:
according to the scheme, the device can be used for testing the damage characteristics of the low-temperature frozen rock sample under the condition of impact load, and the testing device can regulate and control the test environment temperature in real time and intelligently control the position of the sample; the method saves a large amount of time for the impact dynamics test process, ensures high accuracy of test data, can shoot the impact dynamics test process in a three-dimensional close range at high speed through a camera, and is favorable for researching the damage characteristics of a low-temperature frozen sample; moreover, most materials of the device can be made of plastics, a small amount of materials are made of metal products, and the device is low in manufacturing cost and easy to realize.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent dynamics testing device for low-temperature frozen rock fracture process identification according to the utility model;
FIG. 2 is a schematic structural diagram of an intelligent mechanical arm of the intelligent dynamics testing device for low-temperature frozen rock cracking process identification, provided by the utility model;
FIG. 3 is a schematic structural diagram of a lifting base of the intelligent dynamics testing device for low-temperature frozen rock fracture process identification according to the utility model;
FIG. 4 is a schematic structural diagram of an intelligent control valve of the intelligent dynamics testing device for low-temperature frozen rock cracking process identification, provided by the utility model;
fig. 5 is a schematic view of a sealing through cover structure of the intelligent dynamics testing device for low-temperature frozen rock fracture process identification.
Wherein: 1-an intelligent control valve; 1 a-valve convolution; 1 b-sealing the test chamber groove; 1 c-the joint of the valve and the sealing test box; 1 d-valve stop; 2-camera mounting holes; 3-an incident rod; 4-a rock sample; 5-the incident rod passes through the hole; 6-a catheter; 7-line guide holes; 8-lifting the base; 8 a-a lifting platform; 8 b-a lifting rod; 9-a smart robotic arm; 9 a-a plastic sheet; 9 b-mechanical lever; 10-a protection box; 11-sealing the test chamber support rod; 12-a transmission rod; 13-transmission rod through hole; 14-temperature sensor mounting holes; 15-sealing the test chamber; 16-sealing the through cover; 17-hole one; 18-hole two; 19-hole three; 20-hole four.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The utility model provides an intelligent dynamics test device for identifying a low-temperature frozen rock cracking process. As shown in fig. 1, the apparatus includes a stress-strain gauge, an incident rod 3, a transmission rod 12, a protection box 10, and a sealing test box 15; the stress-strain gauge is connected with the incident rod 3 and the transmission rod 12 through strain gauges by leads, the left side and the right side of the protection box 10 are provided with holes and sealed by a sealed transparent cover 16 (as shown in figure 5), the center of the sealed transparent cover 16 is provided with a hole for the incident rod 3 and the transmission rod 12 to enter and exit the protection box, the left side of the bottom surface of the protection box 10 is provided with a line dredging hole 7, a sealed test box 15 is arranged in the protection box 10 through a sealed test box supporting rod 11, the sealed test box 15 comprises a temperature regulating system, an intelligent control valve 1 and an intelligent mechanical arm 9, the temperature regulating system comprises an intelligent refrigeration system, a temperature sensor and a temperature display, the temperature display is connected with the intelligent refrigeration system and the temperature sensor, the temperature sensor is arranged in a temperature sensor mounting hole 14 at the top of the sealed test box 15, the bottom of the sealed test box 15 is connected with a guide pipe 6, and a refrigerant of the intelligent refrigeration system circulates through the guide pipe 6, the intelligent control valve 1 consists of an intelligent switch and intelligent valves, the intelligent valves are installed on the left side and the right side of the bottom of the sealing test box 15, the intelligent switches are used for controlling operation, the intelligent valves are opened, the incident rods and the transmission rods extend into the sealing test box to perform impact dynamics tests, the intelligent valves are closed, and the sealing test box 15 is guaranteed to be sealed; be equipped with lift base 8 in the sealed test box 15, four intelligent robotic arm 9 install at the sealed test box 15 preceding and both sides that the central point put at the back, and the photographic cloud system includes camera and network platform, and during camera mounting hole 2 was arranged respectively in to three camera, at sealed test box 15 preceding, the central point of back and top surface put and respectively set up a camera mounting hole 2.
The temperature display is provided with two temperature marks, one is the temperature in the sealing box which can be set, and the other is the real-time temperature in the sealing box.
As shown in fig. 3, the lifting base 8 includes a lifting platform 8a and a lifting rod 8b, one end of the lifting rod 8b is connected to the lifting platform 8a, the other end of the lifting rod 8b passes through a fourth hole 20 of the sealing test box 15 and is connected to a third hole 19 at the bottom of the protection box 10, the rock sample 4 is placed on the lifting platform 8a, and the lifting base 8 ensures that the center of the rock sample 4, the incident rod 3 and the transmission rod 12 are located on the same axial lead.
The hole positions of the sealing test box 15 are all in a coupling nesting installation mode, and heat-insulating rocks are filled in the interlayer positions of the sealing test box 15 and the protection box 10.
As shown in FIG. 4, the intelligent control valve 1 is provided with a valve convolution part 1a and a valve stop part 1d, the upper part of the intelligent control valve 1 is provided with the valve convolution part 1a, the lower part of the intelligent control valve 1 is provided with the valve stop part 1d, the opening of the intelligent control valve 1 corresponds to a sealing test box groove 1b of the sealing test box 15 and a joint part 1c of the valve and the sealing test box, and the joint part 1c of the valve and the sealing test box ensures good sealing between the intelligent control valve 1 and the sealing test box.
As shown in fig. 2, the main body of the intelligent mechanical arm 9 is a mechanical rod 9b, one end of the mechanical rod 9b is provided with a plastic sheet 9a capable of stirring a rock sample, the other end of the mechanical rod passes through a first hole 17 on the sealing test box 15 and a second hole 18 on the protection box 10 in sequence, and the intelligent mechanical arm 9 can be replaced.
The intelligent control valve 1 can be convoluted together, and is convenient to store.
Implementation example:
in a specific application, the experimental method of the device is as follows:
1) installing the testing device according to the above content and the attached drawings, and placing the rock sample 4 in the sealed test box 15 through the protective box sealed transparent cover 16 and the intelligent control valve 1;
2) closing the intelligent control valve 1 and regulating and controlling the temperature in the sealed test box 15 to reach the requirement through a temperature display;
3) selecting freezing time according to the test requirement, opening the intelligent control valve 1 through a valve switch after freezing, rapidly extending the incident rod 3 and the transmission rod 12 into the sealed test box 15 to be attached to the rock sample 4, then carrying out an impact dynamics test, acquiring data, and adjusting under the condition that the rock sample position is changed after impact;
4) and (3) repeating the step 2) and the step 3) for a plurality of times according to the test requirements, closing all instruments after the test is finished, taking out the rock sample 4 to observe the damage condition, and then analyzing the damage characteristics of the low-temperature frozen rock sample 4 according to the obtained data.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides an intelligent dynamics test device of low temperature freezing rock rupture process discernment which characterized in that: comprises a stress-strain gauge, an incident rod (3), a transmission rod (12), a protection box (10) and a sealing test box (15); the stress-strain gauge is connected with an incident rod (3) and a transmission rod (12) through strain gauges by leads, the left side and the right side of a protection box (10) are both provided with holes, the left side is provided with an incident rod through hole (5), the right side is provided with a transmission rod through hole (13), the two holes are sealed by a sealed transparent cover (16), the center of the sealed transparent cover (16) is provided with a hole for the incident rod (3) and the transmission rod (12) to enter and exit the protection box (10), the left side of the bottom surface of the protection box (10) is provided with a circuit dredging hole (7), a sealed test box (15) is arranged in the protection box (10) through a sealed test box supporting rod (11), the sealed test box (15) comprises a temperature regulation and control system, an intelligent control valve (1) and an intelligent mechanical arm (9), the temperature regulation and control system comprises an intelligent refrigeration system, a temperature sensor and a temperature display, the temperature display is connected with the intelligent refrigeration system and the temperature sensor, the temperature sensor is arranged in a temperature sensor mounting hole (14) in the top of the sealing test box (15), the bottom of the sealing test box (15) is connected with the guide pipe (6), a refrigerant of the intelligent refrigeration system circulates through the guide pipe (6), the intelligent control valve (1) consists of an intelligent switch and an intelligent valve, the intelligent valve is arranged on the left side and the right side of the bottom of the sealing test box (15), the intelligent valve is controlled to operate through the intelligent switch, the intelligent valve is opened, the incident rod and the transmission rod extend into the sealing test box to perform impact dynamics tests, the intelligent valve is closed, and the sealing test box (15) is guaranteed to be sealed; be equipped with lift base (8) in sealed proof box (15), four intelligent robotic arm (9) are installed on the both sides that sealed proof box (15) was preceding and rear central point put, and the photographic cloud system includes camera and network platform, and during camera mounting hole (2) were arranged respectively in to three camera, at sealed proof box (15) preceding, the central point of back and top surface put and respectively set up a camera mounting hole (2).
2. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 1, characterized in that: the temperature display has two temperature marks, one is the temperature in the sealing box that can set up, and the other is the real-time temperature in the sealing box.
3. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 1, characterized in that: lifting platform (8a) is connected to lift base (8) including lift platform (8a) and lifter (8b), lifter (8b) one end, and the other end passes hole four (20) of sealed proof box (15), connects hole three (19) of guard box (10) bottom, places rock sample (4) on lift platform (8a), and lift base (8) guarantee that rock sample (4) center and incident pole (3) and transmission pole (12) are in same axial lead.
4. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 1, characterized in that: the hole positions of the sealing test box (15) are all in a coupling nesting installation mode, and heat-insulating rocks are filled in the interlayer positions of the sealing test box (15) and the protection box (10).
5. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 1, characterized in that: intelligent control valve (1) sets up valve convolution department (1a) and valve stop department (1d), and intelligent control valve (1) upper portion is valve convolution department (1a), and the lower part is valve stop department (1d), and intelligent control valve (1) opening part corresponds sealing test case recess (1b) and valve and the laminating department of sealing test case (15) (1c), and it is sealed good between intelligent control valve (1) and the sealing test case to valve and sealing test case laminating department (1 c).
6. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 1, characterized in that: the intelligent mechanical arm (9) main part is mechanical rod (9b), and mechanical rod (9b) one end sets up plastic sheet (9a), can stir the rock sample, and the other end passes hole one (17) on sealed proof box (15) and hole two (18) of guard box (10) in proper order, and intelligent mechanical arm (9) can be changed.
7. The intelligent dynamics test device for low-temperature frozen rock cracking process identification according to claim 5, characterized in that: the intelligent control valve (1) can be convoluted together, and is convenient to store.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122289916.1U CN215640030U (en) | 2021-09-22 | 2021-09-22 | Intelligent dynamics test device for low-temperature frozen rock fracture process recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122289916.1U CN215640030U (en) | 2021-09-22 | 2021-09-22 | Intelligent dynamics test device for low-temperature frozen rock fracture process recognition |
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| Publication Number | Publication Date |
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| CN215640030U true CN215640030U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122289916.1U Active CN215640030U (en) | 2021-09-22 | 2021-09-22 | Intelligent dynamics test device for low-temperature frozen rock fracture process recognition |
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2021
- 2021-09-22 CN CN202122289916.1U patent/CN215640030U/en active Active
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