CN111879857A - Acoustic emission testing arrangement who contains gas coal rock rupture in-process - Google Patents
Acoustic emission testing arrangement who contains gas coal rock rupture in-process Download PDFInfo
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- CN111879857A CN111879857A CN202010849758.8A CN202010849758A CN111879857A CN 111879857 A CN111879857 A CN 111879857A CN 202010849758 A CN202010849758 A CN 202010849758A CN 111879857 A CN111879857 A CN 111879857A
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- acoustic emission
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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
- G01N29/14—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 using acoustic emission techniques
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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
- G01N2291/024—Mixtures
- G01N2291/0245—Gases in porous solids
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- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a sound emission testing device in a gas-containing coal rock cracking process, which comprises a fixed box, wherein a lifting structure is arranged on the fixed box, a sound emission detector is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box, and a moving structure is arranged on the damping structure; the elevation structure includes: the device comprises four rotating rods, four first belt wheels, a first belt, a motor, a rotating shaft, two second belt wheels, a second belt and a storage part; the four rotating rods are inserted into the fixed box, the four first belt wheels are sleeved on the four rotating rods, and the first belt is sleeved on the four first belt wheels.
Description
Technical Field
The invention relates to the technical field of gas-containing coal rock detection equipment, in particular to an acoustic emission testing device in a gas-containing coal rock fracture process.
Background
The phenomenon of local stress concentration in the material, rapid energy release and generation of transient elastic waves is called Acoustic Emission (AE), sometimes also called stress wave Emission. In the underground mining process, the acoustic emission phenomenon in the coal rock instability and fracture process is a common physical phenomenon, but the phenomenon-common human ears cannot be perceived, acoustic emission characteristics in the coal rock dynamic disaster occurrence process can be monitored through the acoustic emission monitoring equipment, a certain amount of precursor information before the dynamic disaster occurs is found out, reliable parameters are provided for prediction and forecast of the coal rock dynamic disaster, the catastrophe evolution process of the gas-containing coal rock dynamic disaster can be known more fully, a certain amount of precursor information in the gas-containing coal rock dynamic disaster occurrence process is found, and more reasonable and complete treatment schemes and measures can be provided for the gas-containing coal rock dynamic disaster through a mechanical mechanism and the precursor information. Therefore, the acoustic emission characteristics in the coal rock dynamic disaster occurrence process are very significant to research.
At present, acoustic emission detection equipment usually does not have a mobile function, an operator needs to hold the equipment to a detection place by hand, the detection equipment is easy to collide, the safety coefficient of the equipment is low, and after the equipment is carried to a specified position, the equipment is fixed, so that the workload of the operator is large, and the detection efficiency is low.
Disclosure of Invention
The invention aims to solve the problems, designs an acoustic emission testing device in the process of breaking gas-containing coal rocks, and solves the problems that the existing acoustic emission testing equipment does not usually have a moving function, an operator needs to hold the equipment to a testing place by hand, the equipment is easy to collide, the safety coefficient of the equipment is low, and the equipment is fixed after being carried to a specified position, so that the workload of the operator is large, and the testing efficiency is low.
The technical scheme of the invention for realizing the aim is as follows: the acoustic emission testing device comprises a fixed box, wherein a lifting structure is arranged on the fixed box, an acoustic emission detector is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box, and a moving structure is arranged on the damping structure;
the elevation structure includes: the device comprises four rotating rods, four first belt wheels, a first belt, a motor, a rotating shaft, two second belt wheels, a second belt and a storage part;
four the dwang cartridge is on fixed case, four first band pulley suit is in four on the dwang, first belt suit is in four on the first band pulley, the motor is installed in fixed incasement side wall on, pivot one end is installed in the motor drive end, just pivot other end cartridge is on fixed case, two the second band pulley suit is in pivot and four respectively one of them of dwang on the dwang, the second band suit is in two on the second band pulley, the storage section installs on fixed case.
Preferably, the storage part includes: the device comprises a storage box, four screw rods, four sliding blocks and a mounting plate;
the bin is installed on the fixed box, four the lead screw install in four dwang one end, and four the lead screw cartridge is on the fixed box, four the slider suit is in four on the lead screw, the mounting panel is installed in four on the slider, the acoustic emission detector is installed on the mounting panel.
Preferably, the shock-absorbing structure includes: the damping device comprises a support frame, a plurality of supporting rods, a plurality of first springs, a plurality of connecting rods and a damping box;
the supporting frame is installed on the lower wall surface of the fixed box, the plurality of supporting rods are installed on the lower wall surface of the supporting frame, the plurality of first springs are inserted into the plurality of supporting rods, one ends of the plurality of connecting rods are movably installed at the end portions of the plurality of first springs, and the shock absorption box is movably installed at the other ends of the plurality of connecting rods.
Preferably, the moving structure includes: the four fixing frames, the four first hydraulic cylinders and the four universal wheels are arranged on the frame;
the four fixing frames are arranged on the outer side wall surface of the shock absorption box, the four first hydraulic cylinders are arranged on the inner upper wall surfaces of the four fixing frames, and the four universal wheels are arranged at the four telescopic ends of the first hydraulic cylinders.
Preferably, the four sliding blocks are all inserted with guide rods.
Preferably, the opening of the storage box is hinged with two door openings.
Preferably, the inner side wall surface of the shock absorption box is provided with a plurality of sliding rails, the outer side wall surface of the fixed box is provided with a plurality of grooves, and the moving ends of the sliding rails are arranged in the grooves.
Preferably, a plurality of second springs are arranged on the bottom surface of the inner side of the shock absorption box.
Preferably, four second hydraulic cylinders are arranged on the bottom surface of the inner side of the shock absorption box.
Preferably, four universal wheels all have the shock-absorbing function.
The acoustic emission testing device manufactured by the technical scheme of the invention has a moving function, does not need to hold the equipment to a detection place by an operator, avoids collision of the detection equipment, improves the safety coefficient of the equipment, does not need to manually fix the equipment, reduces the workload of the operator, improves the detection efficiency, and effectively solves the problems that the existing acoustic emission testing equipment does not have the moving function, is required to hold the equipment to the detection place by the operator, is easy to collide the detection equipment, has low safety coefficient of the equipment, and fixes the equipment after carrying the equipment to a specified position, so that the workload of the operator is large and the detection efficiency is low.
Drawings
Fig. 1 is a schematic front sectional structural view of an acoustic emission testing device in a fracture process of a gas-containing coal rock according to the present invention.
Fig. 2 is a schematic structural view of a front view of the acoustic emission testing device in the process of breaking the gas-containing coal rock.
Fig. 3 is a schematic structural view of a moving state of the acoustic emission testing device in the process of breaking the gas-containing coal rock according to the present invention.
Fig. 4 is a schematic top cross-sectional structural view of a lifting structure of an acoustic emission testing device in a fracture process of a gas-containing coal rock according to the present invention.
Fig. 5 is a schematic view of a door opening structure of the acoustic emission testing device in the process of breaking the gas-containing coal rock according to the present invention.
In the figure: 1. a fixed box; 2. an acoustic emission detector; 3. rotating the rod; 4. a first pulley; 5. a first belt; 6. a motor; 7. a rotating shaft; 8. a second pulley; 9. a second belt; 10. a storage tank; 11. a screw rod; 12. a slider; 13. mounting a plate; 14. a support frame; 15. a strut; 16. a first spring; 17. a connecting rod; 18. a damper box; 19. a fixing frame; 20. a first hydraulic cylinder; 21. a universal wheel; 22. a guide bar; 23. a slide rail; 24. a handle; 25. a second spring; 26. and a second hydraulic cylinder.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, and as shown in fig. 1-5, an acoustic emission testing device in a gas-containing coal rock cracking process comprises a fixed box 1, wherein a lifting structure is arranged on the fixed box 1, an acoustic emission detector 2 is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box 1, and a moving structure is arranged on the damping structure; the elevation structure includes: the device comprises four rotating rods 3, four first belt wheels 4, a first belt 5, a motor 6, a rotating shaft 7, two second belt wheels 8, a second belt 9 and a storage part; the four rotating rods 3 are inserted into the fixed box 1, the four first belt wheels 4 are sleeved on the four rotating rods 3, the first belt 5 is sleeved on the four first belt wheels 4, the motor 6 is installed on the upper wall surface of the inner side of the fixed box 1, one end of the rotating shaft 7 is installed at the driving end of the motor 6, the other end of the rotating shaft 7 is inserted into the fixed box 1, the two second belt wheels 8 are respectively sleeved on the rotating shaft 7 and one of the four rotating rods 3, the second belt 9 is sleeved on the two second belt wheels 8, and the storage part is installed on the fixed box 1; the storage part includes: the device comprises a storage box 10, four screw rods 11, four sliding blocks 12 and a mounting plate 13; the storage box 10 is arranged on the fixed box 1, the four screw rods 11 are arranged at one ends of the four rotating rods 3, the four screw rods 11 are inserted into the fixed box 1, the four sliding blocks 12 are sleeved on the four screw rods 11, the mounting plate 13 is arranged on the four sliding blocks 12, and the acoustic emission detector 2 is arranged on the mounting plate 13; the shock-absorbing structure includes: the damping device comprises a supporting frame 14, a plurality of supporting rods 15, a plurality of first springs 16, a plurality of connecting rods 17 and a damping box 18; the supporting frame 14 is mounted on the lower wall surface of the fixed box 1, the plurality of supporting rods 15 are mounted on the lower wall surface of the supporting frame 14, the plurality of first springs 16 are inserted into the plurality of supporting rods 15, one ends of the plurality of connecting rods 17 are movably mounted at the end parts of the plurality of first springs 16, and the damper box 18 is movably mounted at the other ends of the plurality of connecting rods 17; the moving structure includes: four fixed frames 19, four first hydraulic cylinders 20, and four universal wheels 21; the four fixed frames 19 are arranged on the outer side wall surface of the shock absorption box 18, the four first hydraulic cylinders 20 are arranged on the inner upper wall surface of the four fixed frames 19, and the four universal wheels 21 are arranged at the telescopic ends of the four first hydraulic cylinders 20; guide rods 22 are inserted into the four sliding blocks 12; two doors are hinged at the opening of the storage box 10; the inner side wall surface of the shock absorption box 18 is provided with a plurality of slide rails 23, the outer side wall surface of the fixed box 1 is provided with a plurality of grooves, and the moving ends of the slide rails 23 are arranged in the grooves; a plurality of second springs 25 are arranged on the bottom surface of the inner side of the shock absorption box 18; four second hydraulic cylinders 26 are arranged on the bottom surface of the inner side of the shock absorption box 18; the four universal wheels 21 have a shock absorption function.
The embodiment is characterized by comprising a fixed box 1, wherein a lifting structure is arranged on the fixed box 1, an acoustic emission detector 2 is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box 1, and a moving structure is arranged on the damping structure; the elevation structure includes: the device comprises four rotating rods 3, four first belt wheels 4, a first belt 5, a motor 6, a rotating shaft 7, two second belt wheels 8, a second belt 9 and a storage part; the four rotating rods 3 are inserted into the fixed box 1, the four first belt wheels 4 are sleeved on the four rotating rods 3, the first belts 5 are sleeved on the four first belt wheels 4, the motor 6 is installed on the upper wall surface of the inner side of the fixed box 1, one end of the rotating shaft 7 is installed at the driving end of the motor 6, the other end of the rotating shaft 7 is inserted into the fixed box 1, the two second belt wheels 8 are respectively sleeved on the rotating shaft 7 and one rotating rod 3 of the four rotating rods 3, the second belt 9 is sleeved on the two second belt wheels 8, and the storage part is installed on the fixed box 1; have the function of removal, need not operating personnel handheld device to detection place, avoid the check out test set to take place to collide with, the factor of safety of equipment has been improved, need not manually to fix equipment, operating personnel's work load has been reduced, detection efficiency has been improved, the effectual function that does not have the removal now acoustic emission check out test set usually of having solved, need operating personnel handheld device to detection place, easily make check out test set take place to collide with, the factor of safety of equipment is low, after carrying equipment to assigned position, fix equipment again, the work load that leads to operating personnel is big, the problem of detection efficiency low.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b):
an acoustic emission testing device in a gas-containing coal rock breaking process comprises a fixed box 1, wherein a lifting structure is arranged on the fixed box 1, an acoustic emission detector 2 is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box 1, and a moving structure is arranged on the damping structure;
in a specific implementation, the lifting structure may preferably adopt the following structure, which includes: the device comprises four rotating rods 3, four first belt wheels 4, a first belt 5, a motor 6, a rotating shaft 7, two second belt wheels 8, a second belt 9 and a storage part; four 3 cartridge of dwang is on fixed case 1, four 4 suit in four of first band pulley on the dwang 3, 5 suit in four of first belt pulley 4 are last, motor 6 installs wall on fixed case 1 inboard, the drive end is installed in motor 6 to 7 one end of pivot, just 7 other end cartridge of pivot is on fixed case 1, two the suit is respectively in pivot 7 and four to second band pulley 8 one of them of dwang 3 on the dwang 3, 9 suits of second belt are two on the second band pulley 8, the storage section is installed on fixed case 1.
In a specific implementation, the storage part may preferably adopt the following structure, which includes: the device comprises a storage box 10, four screw rods 11, four sliding blocks 12 and a mounting plate 13; bin 10 installs on fixed box 1, four lead screw 11 installs in four 3 one end of dwang, and four lead screw 11 cartridge is on fixed box 1, four slider 12 suit is in four on the lead screw 11, mounting panel 13 install in four on the slider 12, acoustic emission detector 2 installs on mounting panel 13.
In a specific implementation, the shock-absorbing structure may preferably adopt the following structure, which includes: the damping device comprises a supporting frame 14, a plurality of supporting rods 15, a plurality of first springs 16, a plurality of connecting rods 17 and a damping box 18; the supporting frame 14 is arranged on the lower wall surface of the fixed box 1, the plurality of supporting rods 15 are arranged on the lower wall surface of the supporting frame 14, the plurality of first springs 16 are inserted into the plurality of supporting rods 15, one ends of the plurality of connecting rods 17 are movably arranged at the end parts of the plurality of first springs 16, and the shock absorption box 18 is movably arranged at the other ends of the plurality of connecting rods 17.
In a specific implementation, the moving structure may preferably adopt the following structure, which includes: four fixed frames 19, four first hydraulic cylinders 20, and four universal wheels 21; the four fixed frames 19 are mounted on the outer side wall surface of the damper box 18, the four first hydraulic cylinders 20 are mounted on the inner upper wall surface of the four fixed frames 19, and the four universal wheels 21 are mounted on the telescopic ends of the four first hydraulic cylinders 20.
Wherein, it is required to be noted that: when the equipment needs to be moved, the first hydraulic cylinder 20 is controlled to extend to enable the universal wheels 21 to contact the bottom surface, the damping box 18 leaves the ground, preferably, further, four universal wheels 21 have a damping function and are used for damping, in the moving process, the fixed box 1 downwards extrudes the supporting frame 14, the supporting frame 14 drives the supporting rods 15 to downwards move, preferably, further, a plurality of sliding rails 23 are arranged on the inner side wall surface of the damping box 18, a plurality of grooves are arranged on the outer side wall surface of the fixed box 1, the moving ends of the plurality of sliding rails 23 are arranged in the plurality of grooves, the sliding rails 23 play a role in limiting the fixed box 1, the plurality of connecting rods 1721 rotate on the damping box 18, the opposite connecting rods 17 extrude the first springs 16 to play a damping role, preferably, further, a plurality of second springs 25 are arranged on the bottom surface of the inner side of the damping box 18, the second spring 25 acts as an auxiliary support and, after being moved into position, the first hydraulic cylinder 20 is retracted and the shock-absorbing housing 18 contacts the ground, which, as is preferred, is even further, two doors are hinged at the opening of the storage box 10, the opening is opened, the motor 6 is controlled to work, the motor 6 drives the rotating shaft 7 to rotate, under the action of the two second belt wheels 8 and the second belt 9 and the four first belt wheels 4 and the first belt 5, the four sliding blocks 12 are lifted up, so that the acoustic emission detector 2 is gradually lifted up for detection, preferably, further, guide rods 22 are inserted on the four sliding blocks 12, for protecting the screw rod 11, preferably, four second hydraulic cylinders 26 are arranged on the inner bottom surface of the shock absorption box 18, when detecting, the second hydraulic cylinder 26 extends, keeping the fixed box 1 stable, and controls its contraction when moving.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. The acoustic emission testing device in the process of breaking the gas-containing coal rock comprises a fixed box (1), and is characterized in that a lifting structure is arranged on the fixed box (1), an acoustic emission detector (2) is arranged on the lifting structure, a damping structure is arranged at the lower end of the fixed box (1), and a moving structure is arranged on the damping structure;
the elevation structure includes: the device comprises four rotating rods (3), four first belt wheels (4), a first belt (5), a motor (6), a rotating shaft (7), two second belt wheels (8), a second belt (9) and a storage part;
four dwang (3) cartridge is on fixed case (1), four first band pulley (4) suit is in four dwang (3) is last, first belt (5) suit is in four on first band pulley (4), motor (6) are installed in fixed case (1) inboard wall face of going up, pivot (7) one end is installed in motor (6) drive end, just pivot (7) other end cartridge is on fixed case (1), two second band pulley (8) suit is in pivot (7) and four respectively one of them of dwang (3) on dwang (3), second belt (9) suit is two on second band pulley (8), the storage section is installed on fixed case (1).
2. The acoustic emission testing device in a process of breaking a gas-containing coal rock according to claim 1, wherein the storage portion comprises: the device comprises a storage box (10), four screw rods (11), four sliding blocks (12) and a mounting plate (13);
bin (10) is installed on fixed case (1), four lead screw (11) are installed in four dwang (3) one end, and four lead screw (11) cartridge is on fixed case (1), four slider (12) suit is in four on lead screw (11), install in four mounting panel (13) on slider (12), install detector acoustic emission (2) on mounting panel (13).
3. The acoustic emission testing device in the process of breaking of gas-containing coal rock according to claim 2, wherein the shock absorbing structure comprises: the device comprises a support frame (14), a plurality of support rods (15), a plurality of first springs (16), a plurality of connecting rods (17) and a shock absorption box (18);
the supporting frame (14) is installed on the lower wall face of the fixed box (1), the supporting rods (15) are installed on the lower wall face of the supporting frame (14), the first springs (16) are inserted into the supporting rods (15), one ends of the connecting rods (17) are movably installed at the end portions of the first springs (16), and the damping box (18) is movably installed at the other ends of the connecting rods (17).
4. The acoustic emission testing device during a gas-containing coal rock fracture process of claim 3, wherein the moving structure comprises: four fixed frames (19), four first hydraulic cylinders (20) and four universal wheels (21);
the four fixing frames (19) are arranged on the outer side wall face of the shock absorption box (18), the four first hydraulic cylinders (20) are arranged on the inner upper wall face of the four fixing frames (19), and the four universal wheels (21) are arranged at the telescopic ends of the four first hydraulic cylinders (20).
5. The acoustic emission testing device in the process of breaking the gas-containing coal rock according to claim 2, wherein guide rods (22) are inserted into all four sliding blocks (12).
6. The acoustic emission testing device during the process of breaking the gas-containing coal rock according to claim 2, wherein two doors are hinged at the opening of the storage tank (10).
7. The acoustic emission testing device in the process of breaking the gas-containing coal rock according to claim 3, wherein the inner side wall surface of the shock absorption box (18) is provided with a plurality of sliding rails (23), the outer side wall surface of the fixed box (1) is provided with a plurality of grooves, and the moving ends of the sliding rails (23) are arranged in the grooves.
8. The acoustic emission testing device in the process of breaking the gas-containing coal rock according to claim 3, wherein a plurality of second springs (25) are arranged on the bottom surface of the inner side of the shock absorption box (18).
9. The acoustic emission testing device in the process of breaking the coal rock containing gas as claimed in claim 3, wherein four second hydraulic cylinders (26) are arranged on the inner bottom surface of the shock absorption box (18).
10. The acoustic emission testing device in the process of breaking the gas-containing coal rock according to claim 4, wherein four universal wheels (21) have a shock absorption function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010849758.8A CN111879857A (en) | 2020-08-21 | 2020-08-21 | Acoustic emission testing arrangement who contains gas coal rock rupture in-process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010849758.8A CN111879857A (en) | 2020-08-21 | 2020-08-21 | Acoustic emission testing arrangement who contains gas coal rock rupture in-process |
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| Publication Number | Publication Date |
|---|---|
| CN111879857A true CN111879857A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010849758.8A Withdrawn CN111879857A (en) | 2020-08-21 | 2020-08-21 | Acoustic emission testing arrangement who contains gas coal rock rupture in-process |
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| Country | Link |
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| CN (1) | CN111879857A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447633A (en) * | 2021-06-25 | 2021-09-28 | 安徽理工大学 | Movable experimental device for high-voltage electric pulse induced cracking loaded coal containing gas |
-
2020
- 2020-08-21 CN CN202010849758.8A patent/CN111879857A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447633A (en) * | 2021-06-25 | 2021-09-28 | 安徽理工大学 | Movable experimental device for high-voltage electric pulse induced cracking loaded coal containing gas |
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Application publication date: 20201103 |
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