CN204086211U - A kind of device for studying stress wave propagation rule in coal rock medium - Google Patents
A kind of device for studying stress wave propagation rule in coal rock medium Download PDFInfo
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- CN204086211U CN204086211U CN201420478334.5U CN201420478334U CN204086211U CN 204086211 U CN204086211 U CN 204086211U CN 201420478334 U CN201420478334 U CN 201420478334U CN 204086211 U CN204086211 U CN 204086211U
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Abstract
The utility model discloses a kind of device for studying stress wave propagation rule in coal rock medium, comprising coal petrography mock-up and measure on stress pulse device; The second pelitic siltstone that described coal petrography mock-up comprises the first pelitic siltstone, is arranged at the coal seam on described first pelitic siltstone and is arranged on described coal seam, is provided with gangue and through hole in described coal seam; Described measure on stress pulse device comprises the mounting box of end face opening, described coal petrography mock-up is arranged in described mounting box, the gearing that the madial wall of the mounting box of described first pelitic siltstone side is provided with stepper motor and is connected with described stepper motor, described gearing is provided with sender unit, the madial wall of the mounting box of described second pelitic siltstone side is provided with the receiver of the signal that at least two are launched for Received signal strength emitter.Coal petrography mock-up measurement parameter of the present utility model and pick-up unit parameter controlled and dangerous low.
Description
Technical field
The utility model belongs to Coal Mining Technology field, is specifically related to a kind of device for studying stress wave propagation rule in coal rock medium.
Background technology
In ROCK MECHANICS RESEARCH field, stress wave propagation law is in solids very important research direction.The propagation law of stress wave in coal rock medium to analysis coal-mine gas aggregation zone, and has important theory significance in the analysis of the permeable point in colliery.
But, the Main Means that the propagation law of present stage corresponding Reeb in coal rock medium carries out studying is mostly the mode of in-site measurement, owing to adopting the mode of in-site measurement, parameter is wayward, and dangerous property, therefore on-the-spot test cannot accurately be studied by the propagation law of corresponding Reeb in coal rock medium.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of device for studying stress wave propagation rule in coal rock medium is provided, the coal petrography mock-up measurement parameter of this device and pick-up unit parameter controlled and dangerous low.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of device for studying stress wave propagation rule in coal rock medium, comprises coal petrography mock-up and measure on stress pulse device;
The second pelitic siltstone that described coal petrography mock-up comprises the first pelitic siltstone, is arranged at the coal seam on described first pelitic siltstone and is arranged on described coal seam, is provided with gangue and through hole in described coal seam;
Described measure on stress pulse device comprises the mounting box of end face opening, described coal petrography mock-up is arranged in described mounting box, the gearing that the madial wall of the mounting box of described first pelitic siltstone side is provided with stepper motor and is connected with described stepper motor, described gearing is provided with sender unit, the madial wall of the mounting box of described second pelitic siltstone side is provided with the receiver of the signal that at least two are launched for Received signal strength emitter.
Also water is provided with between described mounting box and described coal petrography mock-up.
The shape of the shape of described first pelitic siltstone, the shape of the second pelitic siltstone, the shape in coal seam and gangue is cuboid;
The length of described first pelitic siltstone and the length of described second pelitic siltstone are all in the scope of 99cm ~ 101cm, the thickness of described first pelitic siltstone and the thickness of described second pelitic siltstone are all in the scope of 9.5cm ~ 10.5cm, and the width of described first pelitic siltstone and the width of described second pelitic siltstone are all in the scope of 9.5cm ~ 10.5cm;
The length in described coal seam is in the scope of 99cm ~ 101cm, and the thickness in described coal seam is in the scope of 9.5cm ~ 10.5cm, and the width in described coal seam is in the scope of 24.5cm ~ 25.5cm;
The quantity of described gangue is two, and the length of two gangues is respectively 60cm and 25cm, and the thickness of two gangues is all in the scope of 9.5cm ~ 10.5cm, and the width of two gangues is 2cm;
The shape of described through hole is circular, and the diameter of described through hole is 5cm.
Described stepper motor is p-m step motor, the model of described stepper motor is the SMD-401 type that Changzhou micromotor head factory is produced, described gearing is belt transmission, and described sender unit utilizes riveting method to be fixed on the belt of described belt transmission.
The quantity of described receiver is 4, and described receiver utilizes riveting method to be fixed on the madial wall of described mounting box.
Described sender unit is ultrasonic transmitter, and described receiver is ultrasonic receiver.
The utility model compared with prior art has the following advantages:
1, coal petrography mock-up measurement parameter of the present utility model is controlled, and the gangue in coal seam is for imitating the impurity in actual coal seam, and it has randomness at the concrete distributing position in coal seam, more vivo can imitate the distribution of impurity; Through hole in coal seam is for imitating the slight crack in actual coal seam, and it also has randomness at the particular location in coal seam.
2, pick-up unit parameter of the present utility model is controlled, and stepper motor can control gearing with the motion of different speed, and then changes the movement velocity of sender unit at coal petrography mock-up money, to ensure that receiver can receive dynamic stress wave.
3, the utility model is without the need to in-site measurement, dangerous low.
In sum, the utility model provides a kind of parameter controlled and the dangerous low device for studying stress wave propagation rule in coal rock medium.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is vertical view of the present utility model.
Fig. 2 is stereographic map of the present utility model.
Fig. 3 is the structural representation of the utility model coal petrography mock-up.
Fig. 4 is the structural representation of the utility model pick-up unit.
Description of reference numerals: 1, coal petrography mock-up; 10, the first pelitic siltstone; 11, coal seam; 12, gangue; 13, through hole; 14, the second pelitic siltstone; 2, measure on stress pulse device; 21, mounting box; 22, stepper motor; 23, gearing; 24, sender unit; 25, receiver.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of device for studying stress wave propagation rule in coal rock medium, as shown in Figures 1 and 2, and the measure on stress pulse device 2 comprising coal petrography mock-up 1 and be connected with coal petrography mock-up 1.
Below, the utility model embodiment is described respectively to coal petrography mock-up and pick-up unit.
As shown in Figure 3, for the coal petrography mock-up 1 that the utility model embodiment provides, coal petrography natural pattern 1 comprises the first pelitic siltstone 10, is arranged at the coal seam 11 on the first pelitic siltstone 10 and is arranged at the second pelitic siltstone 14 on coal seam 11, is provided with gangue 12 and through hole 13 in coal seam 11.
Further, the length of the first pelitic siltstone 10 and the second pelitic siltstone 14 is all in the scope of 99cm ~ 101cm, the thickness of the first pelitic siltstone 10 and the second pelitic siltstone 14 is all in the scope of 9.5cm ~ 10.5cm, and the width of the first pelitic siltstone 10 and the second pelitic siltstone 14 is all in the scope of 9.5cm ~ 10.5cm.
Preferably, the length of the first pelitic siltstone 10 and the second pelitic siltstone 14 is 100cm, and the thickness of the first pelitic siltstone 10 and the second pelitic siltstone 14 is 10cm, and the width of the first pelitic siltstone 10 and the second pelitic siltstone 14 is 10cm.
Further, the length in coal seam 11 is in the scope of 99cm ~ 101cm, and the thickness in coal seam 11 is in the scope of 9.5cm ~ 10.5cm, and the width in coal seam 11 is in the scope of 24.5cm ~ 25.5cm.
Preferably, the length in coal seam 11 is 100cm, and thickness is 10cm, and width is 25cm.
Further, the quantity of gangue 12 is two, and the length of these two gangues 12 is respectively 60cm and 25cm, and the thickness of these two gangues 12 is all in the scope of 9.5cm ~ 10.5cm, and the width of these two gangues 12 is 2cm.
Preferably, the thickness of gangue 12 is 10cm.
It should be noted that, gangue is for simulating the impurity in actual coal seam, and gangue has certain randomness at the concrete distributing position in coal seam, can be distributed in the optional position in coal seam, can imitate the distribution of impurity like this with more corresponding to reality.
Further, the diameter of through hole 13 is 5cm.
It should be noted that, the through hole of the utility model embodiment can be circular hole, specifically for imitating the crack in the coal seam of reality, in actual coal mining process, such crack may containing high pressure hazardous gases such as gas, this is also one of reason causing accident generation in actual coal mining process, and in order to imitate the distribution in crack better, the position of through hole also has certain randomness.
As shown in Figure 4, for the structural representation of the measure on stress pulse device 2 that the utility model embodiment provides, this measure on stress pulse device 2 comprises the mounting box 21 of end face opening, coal petrography mock-up 1 in Fig. 3 is arranged in mounting box 21, the gearing 23 madial wall of the mounting box 21 of the first pelitic siltstone side being provided with stepper motor 22 and being connected with stepper motor 22, gearing 23 is provided with sender unit 24, the madial wall of the mounting box 21 of the second pelitic siltstone side is provided with the receiver 25 of the signal that at least two are launched for Received signal strength emitter 24.At least two receivers 25 receive the stress wave propagated through coal petrography mock-up 1 sent from sender unit 24.
Further, shown in composition graphs 1, between mounting box 21 and coal petrography mock-up 1, be also provided with water (not shown in FIG.).Its objective is and by water, sender unit 24 is coupled with coal petrography mock-up 1 with coal petrography mock-up 1, receiver 25.
It should be noted that, in the process by stress wave propagation rule in the research coal rock medium of this device, need to ensure that water can flood sender unit and receiver, and, utilizing water to carry out being coupled is only the optimal way that the utility model embodiment provides, and air also can be utilized to be coupled.
Further, stepper motor 22 can be p-m step motor, and the model of stepper motor 22 is the SMD-401 type that Changzhou micromotor head factory is produced, and need have the performance of waterproof.Gearing 23 is belt transmission, and sender unit 24 utilizes riveting method to be fixed on the belt of belt transmission.
It should be noted that; the mode that sender unit is fixed on belt transmission belt can for multiple; such as welding etc., the riveting method that the utility model embodiment proposes is only optimal way, and other fixed form also should within the protection domain of the utility model embodiment.
Further, the quantity of receiver 25 can be 4, and receiver 25 utilizes riveting method to be fixed on mounting box 21.
Further, above-mentioned sender unit 24 is ultrasonic transmission device, and receiver 25 is ultrasonic receiver.
The course of work of the present utility model is as follows: the movement velocity of the belt of step motor control belt transmission and movement angle, thus controls to be arranged at sender unit 24 on belt with different speed and direction in coal petrography mock-up 1 one lateral movement.Sender unit 24 motion process in predetermined periodic emission signal, this signal is through the coupling of water, the receiver 25 being arranged on coal petrography mock-up 1 opposite side is transmitted to along coal petrography mock-up 1, because sender unit 24 can in coal petrography mock-up 1 one lateral movement, and then ensure that four receivers 25 being arranged on coal petrography mock-up 1 opposite side can receive dynamic stress wave from different orientation, simultaneously, the through hole 13 for simulating crack in actual coal seam and impurity and gangue 12 is provided with at random in coal petrography mock-up 1, thus the utility model achieves the propagation law of stress wave in research coal rock medium.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. for studying a device for stress wave propagation rule in coal rock medium, it is characterized in that, comprising coal petrography mock-up (1) and measure on stress pulse device (2);
The second pelitic siltstone (14) that described coal petrography mock-up (1) comprises the first pelitic siltstone (10), is arranged at the coal seam (11) on the first pelitic siltstone (10) and is arranged on coal seam (11), is provided with gangue (12) and through hole (13) in described coal seam (11);
Described measure on stress pulse device (2) comprises the mounting box (21) of end face opening, described coal petrography mock-up (1) is arranged in mounting box (21), the gearing (23) madial wall of the mounting box (21) of described first pelitic siltstone (10) side being provided with stepper motor (22) and being connected with stepper motor (22), described gearing (23) is provided with sender unit (24), the madial wall of the mounting box (21) of described second pelitic siltstone (14) side is provided with the receiver (25) of the signal that at least two are launched for Received signal strength emitter (24).
2. a kind of device for studying stress wave propagation rule in coal rock medium according to claim 1, is characterized in that, is also provided with water between described mounting box (21) and described coal petrography mock-up (1).
3. a kind of device for studying stress wave propagation rule in coal rock medium according to claim 1 and 2, it is characterized in that, the shape of described first pelitic siltstone (10), the shape of the second pelitic siltstone (14), the shape of coal seam (11) and the shape of gangue (12) are cuboid;
The length of described first pelitic siltstone (10) and the length of the second pelitic siltstone (14) are all in the scope of 99cm ~ 101cm, the thickness of described first pelitic siltstone (10) and the thickness of the second pelitic siltstone (14) are all in the scope of 9.5cm ~ 10.5cm, and the width of described first pelitic siltstone (10) and the width of the second pelitic siltstone (14) are all in the scope of 9.5cm ~ 10.5cm;
The length in described coal seam (11) is in the scope of 99cm ~ 101cm, and the thickness of described coal seam (11) is in the scope of 9.5cm ~ 10.5cm, and the width of described coal seam (11) is in the scope of 24.5cm ~ 25.5cm;
The quantity of described gangue (12) is two, the length of two gangues (12) is respectively 60cm and 25cm, the thickness of two gangues (12) is all in the scope of 9.5cm ~ 10.5cm, and the width of two gangues (12) is 2cm;
The shape of described through hole (13) is circular, and the diameter of described through hole (13) is 5cm.
4. a kind of device for studying stress wave propagation rule in coal rock medium according to claim 1 and 2, it is characterized in that, described stepper motor (22) is p-m step motor, the model of described stepper motor (22) is the SMD-401 type that Changzhou micromotor head factory is produced, described gearing (23) is belt transmission, and described sender unit (24) utilizes riveting method to be fixed on the belt of described belt transmission.
5. a kind of device for studying stress wave propagation rule in coal rock medium according to claim 1 and 2, it is characterized in that, the quantity of described receiver (25) is 4, and described receiver (25) utilizes riveting method to be fixed on the madial wall of mounting box (21).
6. a kind of device for studying stress wave propagation rule in coal rock medium according to claim 1 and 2, it is characterized in that, described sender unit (24) is ultrasonic transmitter, and described receiver (25) is ultrasonic receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478334.5U CN204086211U (en) | 2014-08-22 | 2014-08-22 | A kind of device for studying stress wave propagation rule in coal rock medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478334.5U CN204086211U (en) | 2014-08-22 | 2014-08-22 | A kind of device for studying stress wave propagation rule in coal rock medium |
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| Publication Number | Publication Date |
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| CN204086211U true CN204086211U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420478334.5U Expired - Fee Related CN204086211U (en) | 2014-08-22 | 2014-08-22 | A kind of device for studying stress wave propagation rule in coal rock medium |
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| CN (1) | CN204086211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005081A (en) * | 2015-08-11 | 2015-10-28 | 西安科技大学 | Dynamic tomography system and method for fully mechanized face near field coal rock under exploiting excitation of coal machine |
-
2014
- 2014-08-22 CN CN201420478334.5U patent/CN204086211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005081A (en) * | 2015-08-11 | 2015-10-28 | 西安科技大学 | Dynamic tomography system and method for fully mechanized face near field coal rock under exploiting excitation of coal machine |
| CN105005081B (en) * | 2015-08-11 | 2016-08-24 | 西安科技大学 | Coal machine adopts the lower fully mechanized coal face near field coal petrography dynamic layer chromatographic imaging system of excitation and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |