CN209924976U - Drilling detection device for upward mining overburden failure law - Google Patents
Drilling detection device for upward mining overburden failure law Download PDFInfo
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- CN209924976U CN209924976U CN201920555216.2U CN201920555216U CN209924976U CN 209924976 U CN209924976 U CN 209924976U CN 201920555216 U CN201920555216 U CN 201920555216U CN 209924976 U CN209924976 U CN 209924976U
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Abstract
The utility model relates to a drilling detection device for the damage law of the overburden rock in the upward mining, which comprises a front push rod, a rear push rod, a connecting rod and an electric cylinder, wherein the telescopic end of the electric cylinder extends into the front push rod and is fixedly connected with a push plate fixedly arranged in the front push rod; the front push rod and the rear push rod are respectively fixedly connected with a walking wheel set; the front push rod and the rear push rod are respectively fixedly provided with an air bag, the rear part of the front push rod, which is provided with the air bag, and the front part of the rear push rod, which is provided with the air bag, are respectively provided with a water bag, the water bags are provided with water leakage holes, and the front push rod and the rear push rod are respectively internally provided with an ultrasonic transducer, which is positioned between the air bags; an air inlet pipeline and a water inlet pipeline are arranged outside the end part of the rear push rod, the air inlet pipeline is used for inflating the air bag, and the water inlet pipe is used for inflating the water bag; the distance between the adjustment gasbag is guaranteed to carry out the distance adjustment between the gasbag after getting into the drilling, makes the data that detect more precision higher, has avoided not having gas filled gasbag and drilling wall contact, has promoted the life of device.
Description
Technical Field
The utility model relates to a coal seam mining equipment field especially relates to a drilling detection device of ascending exploitation overlying strata destruction law.
Background
In the coal seam group mining process, the mining sequence of each coal seam generally adopts downward mining. However, under certain geological and mining conditions, many mines initially mine a lower coal seam during the mining of the coal seam group, depending on the actual development needs of the mine, thereby forming an upward mining sequence. In the process of upward mining, if the working face of the upper coal seam is located in a fracture zone or a bending subsidence zone range caused by mining of the lower coal seam, the stability of surrounding rocks of a roadway of the upper coal seam is poor, and meanwhile, a coal pillar reserved after the lower coal seam is mined also forms a stress concentration area in a certain range in an overlying rock stratum, so that adverse effects can be brought to the mining of the upper coal seam. In order to judge the influence of the lower coal seam mining on the position of an ascending working face and the stability control of a stoping roadway and analyze the feasibility of the ascending mining, the damage rule of overlying strata after the lower coal seam mining needs to be researched.
At present, the main means for detecting the development height of a fracture zone and the damage depth of a bottom plate fracture is to inject water into a drilled hole for plugging, and the development condition of the rock mass fracture is presumed by measuring the water leakage quantity of the plugging part. The drilling hole plugging leak detection device has low detection precision and intelligence degree, and can not interpret the development of cracks around a drilling hole; and is not suitable for floor crack failure depth detection due to the hydrostatic pressure. Because coupling liquid is needed during ultrasonic detection, and the borehole of the underground top plate is an upward hole and the borehole of the bottom plate is sometimes a dry hole (the underground simple borehole does not contain cement paste, water and other coupling liquid), the condition that water is used as the coupling liquid is lost, so that the ultrasonic in the prior art cannot be used for construction measurement;
to solve the above problems, chinese patent 201410422850.0 discloses an ultrasonic detection device and system for underground rock mass crack drilling, which solves the problem of ultrasonic measurement in the drilling, but the device can not adjust the distance between two air bags according to the actual situation of entering into the drilling in the measurement process, and only adjust the distance between the air bags outside the hole according to the previous detection and then place the device into the drilling for measurement, because of the preset length, the measurement result is not very accurate in the detection process, and because of the adjustment outside the hole, when the device after adjustment climbs in the drilling, the device climbs in the drilling due to the overlong dimension is inconvenient, and meanwhile, when the device moves in the drilling, the device is pushed into the drilling by external force, but because the environment of the drilling is relatively complex, the parts such as the air bags are easily scratched due to the existence of rocks in the pushing process, causing a situation where the device has been damaged.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming of the prior art, the utility model aims at providing a can be in drilling according to actual conditions automatically regulated distance between the gasbag, in convenient device can enter into drilling, the drilling detection device of the law is destroyed to the upward mining overburden that conveniently crawls.
In order to achieve the purpose, the utility model adopts the following technical proposal that the drilling detection device for the overlying strata damage law of upward mining comprises a front push rod, a rear push rod and a connecting rod; the end part of the rear push rod is fixedly connected with one end of a connecting rod, the other end of the connecting rod is inserted into the front push rod, an electric cylinder is fixedly arranged in one end, close to the front push rod, of the connecting rod, and the telescopic end of the electric cylinder extends into the front push rod and is fixedly connected with a push plate fixedly arranged in the front push rod; the front push rod and the rear push rod are respectively and fixedly connected with a walking wheel set;
the front push rod and the rear push rod are respectively fixedly provided with an air bag, the rear part of the front push rod, which is provided with the air bag, and the front part of the rear push rod, which is provided with the air bag, are respectively provided with a water bag, the water bags are provided with water leakage holes, the front push rod and the rear push rod are respectively internally provided with an ultrasonic transducer, and the ultrasonic transducers are positioned between the air bags;
the end part of the rear push rod is externally provided with an air inlet pipeline and a water inlet pipeline, the end part of the air inlet pipeline penetrates into the rear push rod and the front push rod and is connected with the air bag to enable the other end of the air inlet pipeline to be connected with the air bag to inflate the air bag, the end part of the water inlet pipe penetrates into the rear push rod and the front push rod to be communicated with the water bag, and the other end of the water inlet pipeline is used for filling water into the water bag.
And the number of the air inlet pipelines is two, one air inlet pipeline is communicated with the air bag on the front push rod, and the other air inlet pipeline is communicated with the air bag on the rear push rod.
The water leakage hole is internally embedded with a back check valve, the check valve comprises a valve body, the outer wall of the valve body is fixedly connected with the water leakage hole, the top of the valve body is sealed, the side wall of the valve body is provided with a water outlet hole, the valve body is internally provided with a valve core used for plugging the water outlet hole, and the valve core is fixedly connected with the top of the valve body through a compression spring.
The water bag is formed by an annular bag body, the inner ring of the water bag of the annular bag body is fixedly connected with the rear push rod/the front push rod, and the end part of the water inlet pipe sequentially penetrates through the outer wall of the rear push rod/the front push rod and the inner wall of the water bag to be communicated with the water bag.
Walking wheel group including left walking wheel and right walking wheel, left walking wheel and right walking wheel pass through the connecting axle and connect, and the both ends of this connecting axle put through the bearing with the center of left walking wheel and right walking wheel and be connected, the middle part of connecting axle be equipped with by left tile and right tile and connect the clamp of the bolt formation of this left tile and right tile, the connecting axle passes through the clamp with preceding push rod/back push rod and is connected, just preceding push rod/back push rod is perpendicular with the connecting axle.
And the front end of the front push rod is provided with a displacement sensor for detecting whether the device reaches a specified position.
An air inlet of the air inlet pipeline is connected with an air pump, and a pressure gauge and a pressure regulating valve are arranged on the air inlet pipeline between the air pump and the rear push rod.
The water inlet of inlet tube is connected with the water pump, be equipped with flowmeter and governing valve on the inlet tube between water pump and the back push rod.
And the air bag is provided with a pressure sensor for detecting whether the air bag is tightly attached to the hole wall of the drill hole or not.
The utility model has the advantages that: the utility model discloses a flexible of electric jar of design can adjust the distance between preceding push rod and the back push rod, and then the distance between the adjustment gasbag, guarantee to carry out the distance adjustment between the gasbag after getting into the drilling, guaranteed more accurate through the data that super god ripples detected when going on, the precision is higher, the walking wheel that is equipped with simultaneously can make things convenient for the device to impel the walking in drilling, and at the in-process of walking, effectually avoided not having gas filled gasbag and the contact of drilling wall, cause the rock to the condition of gasbag scratch, the effectual whole device that has protected, the service life of device has been promoted, detect for drilling and provide very big convenience.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the middle water bag of the present invention;
FIG. 3 is a schematic structural view of the check valve of the present invention;
fig. 4 is a structural schematic of the middle traveling wheel set of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Examples
The drilling detection device for the damage law of the overburden rock in the upward mining shown in the figure 1 comprises a front push rod 1, a rear push rod 2 and a connecting rod 3; the end part of the rear push rod 2 is fixedly connected with one end of a connecting rod 3, the other end of the connecting rod 3 is inserted into the front push rod 1, an electric cylinder 7 is fixedly arranged in one end, close to the front push rod 1, of the connecting rod 3, and the telescopic end of the electric cylinder 7 extends into the front push rod 1 and is fixedly connected with a push plate 8 fixedly arranged in the front push rod 1; the front push rod 1 and the rear push rod 2 are respectively and fixedly connected with a walking wheel set 9; the connecting rod 3 penetrates into the front push rod 1 to ensure that the connecting rod 3 can stretch relative to the front push rod 1, meanwhile, the front push rod, the rear push rod and the connecting rod are all of a tubular structure, the stretching between the front push rod and the connecting rod is pushed through the electric cylinder 7, when the stretching end of the electric cylinder 7 stretches, the front push rod moves forwards relative to the rear push rod, the side length of the whole device is long, when the stretching end of the electric cylinder 7 retracts, the front push rod moves backwards relative to the rear push rod, the whole device is shortened, the walking wheel groups are respectively arranged on the front push rod and the rear push rod to ensure that the whole device can roll in a drill hole, the whole device can enter the drill hole more conveniently, in the embodiment, the electric cylinder is electrically connected with an electric cylinder controller at the outer end through a cable, and the electric cylinder controller is used for controlling the stretching condition;
the front push rod 1 and the rear push rod 2 are respectively fixedly provided with an air bag 4, the rear part of the air bag 4 arranged on the front push rod 1 and the front part of the air bag 4 arranged on the rear push rod 2 are respectively provided with a water bag 5, the water bag 5 is provided with a water leakage hole 20, the front push rod 1 and the rear push rod 2 are respectively provided with an ultrasonic transducer 6, and the ultrasonic transducers 6 are positioned between the air bags 4;
the tip of back push rod 2 be equipped with air inlet pipeline 13 and water inlet pipeline 14 outward, the tip of air inlet pipeline 13 penetrate back push rod 2 and preceding push rod 1 and link the other end with gasbag 4 and inflate for gasbag 4 for the air inlet, the tip of inlet tube 14 penetrate back push rod 2 and preceding push rod 1 in with water pocket 5 intercommunication, the other end is that the water inlet fills water for water pocket 5.
The air bag is composed of a high-performance rubber leather sleeve, the maximum pressure resistance is 2MP, and meanwhile, under the condition of inflation, the height of the cross section of the air bag is lower than that of a travelling wheel set, so that the air bag can be positioned in the air and cannot be contacted with rocks in a drill hole in the walking process of the device, and the situation that the air bag is scratched by the rocks is avoided. Preferably, the ultrasonic transducer can be a single crystal probe, a double crystal probe or the like according to the detection requirement.
In using, put into the drilling with the device, the electric cylinder is in the state of shortening this moment, the length of whole device is shorter, the convenience moves in the drilling, because of the existence of walking wheelset, the device can be quick walk in the drilling, after whole device reached assigned position, judge the length of concrete needs measuring drilling according to the camera device that the device was equipped with (not drawing in the drawing, also can adjust according to the detection structure of earlier stage), then adjust the distance between two gasbags through the flexible length of electric cylinder, after the adjustment is accomplished, aerify through gasbag 3 on the outside gas transmission interface front push rod of admission line and the back push rod, thereby make these two gasbags hug closely the pore wall, so that form a sealed hole section with the part between these two gasbags. Then, the water bag is filled with water by using an external water delivery interface, and the water flushed into the water bag is filled into the sealed hole section through the water leakage hole. Therefore, water injected from the external water delivery interface is used as a medium and is used as ultrasonic coupling liquid, and the ultrasonic transducer arranged between the two air bags is used for detecting the crack. Meanwhile, the crack detection can be carried out by utilizing the leakage amount of water in the sealing hole section.
Specifically, in order to ensure that the whole device is positioned more accurately in a drill hole, two air inlet pipelines 13 are provided, one air inlet pipeline 13 is communicated with the air bag 4 on the front push rod 1, the other air inlet pipeline 13 is communicated with the air bag 4 on the rear push rod 2, when the whole device enters the drill hole in use, a displacement sensor is arranged at the end part of the front push rod to detect certain conditions of the device, after the displacement sensor detects that the front push rod moves to a specified position, the air inlet pipeline 13 communicated with the air bag of the front push rod is used for inflating the air bag of the front push rod, after the inflation is completed, the air bag on the front push rod is completely attached to the air to connect the whole front push rod with the drill hole, at the moment, the electric cylinder is started to extend, and because the front push rod is fixed, the rear push rod moves backwards relative to the front push rod, when moving the distance between two gasbags and according with the measured position, the air inlet pipeline of back push rod gasbag intercommunication inflates for this gasbag, when this gasbag is laminated with drilling completely, forms the sealed space that needs, fixes a position more accuracy when using to when entering into drilling, the device is than shorter, makes things convenient for the walking more, has brought very big convenience for whole detection.
Further, in order to guarantee that the device runs in the drilling, can not be because of the dust in the drilling will the hole that leaks plug up, it is not good to lead to the effect that the hole that leaks to leak, like fig. 2 leak in the hole 20 inlay back check valve 19, like fig. 3 check valve 19 includes outer wall and the hole 20 fixed connection that leaks and top confined valve body 1901, the lateral wall of valve body 1901 on be equipped with apopore 1902, valve body 1901 in be equipped with and be used for carrying out the case 1903 of shutoff to apopore 1902, case 1903 and valve body 1901's top pass through compression spring 1904 fixed connection. When the water filling valve is used, water enters the valve body, the valve core is pushed upwards, when the lower end of the valve core moves upwards to the position of the water outlet hole, the water entering the valve body leaks out through the water outlet hole, when the water filling is stopped, the upward valve core compresses the compression spring in the water filling process, the compression spring needs to be recovered to push the valve core to move downwards, the water outlet hole is plugged, and the situation that the water outlet hole is plugged by dust is avoided.
Further, in order to ensure that water can smoothly enter the drill hole, as shown in fig. 2, the water bag 5 is formed by an annular bag body, an inner ring of the water bag of the annular bag body is fixedly connected with the rear push rod 2/the front push rod 1, and the end of the water inlet pipe 14 sequentially penetrates through the outer wall of the rear push rod 2/the front push rod 1 and the inner wall of the water bag 5 to be communicated with the water bag 5. Adopt the water pocket to carry out initial water storage, can water more stable output entering into drilling, can not appear leading to out the inhomogeneous condition of water because of pressure variation.
Further, in order to ensure that the traveling wheel set and the front push rod/rear push rod are conveniently installed, the traveling wheel set 9 shown in fig. 4 includes a left traveling wheel 901 and a right traveling wheel 902, the left traveling wheel 901 and the right traveling wheel 902 are connected by a connecting shaft 903, two ends of the connecting shaft 903 are connected with the centers of the left traveling wheel 901 and the right traveling wheel 902 by a bearing 904, a clamp formed by a left tile 905, a right tile 906 and a bolt 907 connecting the left tile 905 and the right tile 906 is disposed in the middle of the connecting shaft 903, the connecting shaft 903 is connected with the front push rod 1/rear push rod 2 by the clamp, and the front push rod 1/rear push rod 2 is perpendicular to the connecting shaft 903.
Further, in order to ensure that the air entering the air bag is more stable and the air pressure of the air entering the air bag can be adjusted, an air pump 11 is connected to an air inlet of the air inlet pipeline 13, and a pressure gauge 15 and a pressure adjusting valve 16 are arranged on the air inlet pipeline 13 between the air pump 11 and the rear push rod 2.
Further, in order to ensure that water can enter the water bag and make statistics on the water entering the water bag, a water inlet of the water inlet pipe 14 is connected with a water pump 12, and a flow meter 17 and a regulating valve 18 are arranged on the water inlet pipe 14 between the water pump 12 and the rear push rod 2.
And the air bag 4 is provided with a pressure sensor for detecting whether the air bag 4 is tightly attached to the hole wall of the drilled hole or not. The pressure sensor is used for detecting the attaching state of the air bag and the hole wall, and is marked in the figure.
The device is communicating air inlet pipeline and air pump when the field usage, and the inlet tube communicates with the water pump, and this inlet tube and air inlet pipeline can wrap up through the leather hose with the cable conductor that the device needs simultaneously, and the wholeness is better, can not take place winding condition at the in-process that uses.
The above embodiments are merely examples of the present invention, and do not limit the protection scope of the present invention, and all designs the same as or similar to the present invention belong to the protection scope of the present invention.
Claims (9)
1. A drilling detection device for an upward mining overburden failure rule is characterized by comprising a front push rod (1), a rear push rod (2) and a connecting rod (3); the end part of the rear push rod (2) is fixedly connected with one end of the connecting rod (3), the other end of the connecting rod (3) is inserted into the front push rod (1), an electric cylinder (7) is fixedly arranged in one end, close to the front push rod (1), of the connecting rod (3), and the telescopic end of the electric cylinder (7) extends into the front push rod (1) and is fixedly connected with a push plate (8) fixedly arranged in the front push rod (1); the front push rod (1) and the rear push rod (2) are respectively and fixedly connected with a traveling wheel set (9);
the front push rod (1) and the rear push rod (2) are respectively fixedly provided with an air bag (4), the front push rod (1) is provided with a water bag (5) at the rear of the air bag (4) and in front of the rear push rod (2) provided with the air bag (4), the water bag (5) is provided with a water leakage hole (20), the front push rod (1) and the rear push rod (2) are respectively provided with an ultrasonic transducer (6), and the ultrasonic transducers (6) are positioned between the air bags (4);
the tip of back push rod (2) be equipped with air inlet pipeline (13) and inlet tube (14) outward, the tip of air inlet pipeline (13) penetrate back push rod (2) and preceding push rod (1) in and link the other end with gasbag (4) and inflate for gasbag (4) for the air inlet, the tip of inlet tube (14) penetrate back push rod (2) and preceding push rod (1) in with water pocket (5) intercommunication, the other end fills water for water pocket (5) for the water inlet.
2. The drilling detection device for the upward mining overburden failure law according to claim 1, wherein the number of the air inlet pipelines (13) is two, one of the air inlet pipelines (13) is communicated with the air bag (4) on the front push rod (1), and the other air inlet pipeline (13) is communicated with the air bag (4) on the rear push rod (2).
3. The drilling detection device of upward mining overburden rock failure law according to claim 1, characterized in that, leak hole (20) in inlay back check valve (19), check valve (19) include outer wall and leak hole (20) fixed connection and top confined valve body (1901), the lateral wall of valve body (1901) on be equipped with apopore (1902), valve body (1901) in be equipped with case (1903) that are used for carrying out the shutoff to apopore (1902), the top of case (1903) and valve body (1901) pass through compression spring (1904) fixed connection.
4. The drilling detection device for detecting the damage law of the overlying strata during upward mining according to claim 1 or 2, wherein the water bag (5) is formed by an annular bag body, the inner ring of the water bag of the annular bag body is fixedly connected with the rear push rod (2)/the front push rod (1), and the end part of the water inlet pipe (14) sequentially penetrates through the outer wall of the rear push rod (2)/the front push rod (1) and the inner wall of the water bag (5) to be communicated with the water bag (5).
5. The drilling detection device for the overlying strata failure law of upward mining according to claim 1, wherein the traveling wheel set (9) comprises a left traveling wheel (901) and a right traveling wheel (902), the left traveling wheel (901) and the right traveling wheel (902) are connected through a connecting shaft (903), two ends of the connecting shaft (903) are connected with the centers of the left traveling wheel (901) and the right traveling wheel (902) through bearings (904), a clamp formed by a left tile (905), a right tile (906) and a bolt (907) for connecting the left tile (905) and the right tile (906) is arranged in the middle of the connecting shaft (903), the connecting shaft (903) is connected with the front push rod (1)/the rear push rod (2) through the clamp, and the front push rod (1)/the rear push rod (2) are perpendicular to the connecting shaft (903).
6. A device for detecting the failure law of upward mining overburden according to claim 3, wherein the front end of the front push rod (1) is provided with a displacement sensor (10) for detecting whether the device reaches a specified position.
7. The drilling detection device for the upward mining overburden failure law according to claim 1 or 2, wherein an air pump (11) is connected to an air inlet of the air inlet pipeline (13), and a pressure gauge (15) and a pressure regulating valve (16) are arranged on the air inlet pipeline (13) between the air pump (11) and the rear push rod (2).
8. The drilling detection device for the upward mining overburden failure law according to claim 1 or 6, wherein a water pump (12) is connected to a water inlet of the water inlet pipe (14), and a flow meter (17) and a regulating valve (18) are arranged on the water inlet pipe (14) between the water pump (12) and the rear push rod (2).
9. The drilling detection device for the upward mining overburden failure law according to claim 1, wherein a pressure sensor for detecting whether the air bag (4) is tightly attached to the wall of the drilled hole or not is arranged on the air bag (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555216.2U CN209924976U (en) | 2019-04-22 | 2019-04-22 | Drilling detection device for upward mining overburden failure law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555216.2U CN209924976U (en) | 2019-04-22 | 2019-04-22 | Drilling detection device for upward mining overburden failure law |
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| Publication Number | Publication Date |
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| CN209924976U true CN209924976U (en) | 2020-01-10 |
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| CN201920555216.2U Expired - Fee Related CN209924976U (en) | 2019-04-22 | 2019-04-22 | Drilling detection device for upward mining overburden failure law |
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| CN (1) | CN209924976U (en) |
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Granted publication date: 20200110 Termination date: 20210422 |