CN108266181B - Drill rod depth measuring device of coal mine drilling machine - Google Patents
Drill rod depth measuring device of coal mine drilling machine Download PDFInfo
- Publication number
- CN108266181B CN108266181B CN201810308728.9A CN201810308728A CN108266181B CN 108266181 B CN108266181 B CN 108266181B CN 201810308728 A CN201810308728 A CN 201810308728A CN 108266181 B CN108266181 B CN 108266181B
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- measuring
- drill rod
- box body
- drill
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 63
- 239000003245 coal Substances 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill rod depth measuring device of a coal mine drilling machine, which comprises a drill rod measuring box, a drill rod measuring module and a data processing and wireless transmission module. The measuring wheel is in contact with the track so as to measure the distance between the track seat and the track seat, the non-contact encoder in the data processing and wireless transmission module detects the rotation data of the measuring wheel in a non-contact mode, the data are transmitted to the data processing module, and the data processing module calculates the drilling depth of the drill rod through calculation and stores the data. The invention is arranged on the drilling machine slideway base of the hydraulic drilling machine, the drilling depth is indirectly calculated by recording the moving distance of the drilling machine slideway base through the measuring wheel, the measurement error caused by human factors is avoided, the safety of measurement is good, and the important potential safety hazard is solved. The invention also has the advantages of simple structure, easy implementation, good use effect and the like.
Description
Technical Field
The invention relates to the technical field of coal mine drilling and production, in particular to a drill rod depth measuring device of a coal mine drilling machine.
Background
At present, the problem of gas emission of a coal mine is always a serious safety problem which puzzles the development of the coal mine industry, one of the most effective methods for solving the problem is to drill holes in the coal seam, release and extract the gas in the coal seam or the adjacent coal seam in a certain range so as to reduce the pressure and the accumulation of the gas, and reduce the possibility of protrusion in a personnel working area so as to ensure the completion of each process and the safety of the existing constructors.
The hydraulic drilling machine is generally adopted to finish the working procedure, the drilling depth can reach 300m at most, the specific depth is required to be determined according to different geological conditions and gas accumulation conditions, the drilling depth can be accurately mastered, the area range of the gas pressure and the gas accumulation is known, and the method has great significance for safe production. However, in the field construction process, the drill is not an ideal straight line but has a certain curvature after being deep, and after the drill rod is withdrawn, the drill holes are often partially collapsed by coal and rock under the action of peripheral pressure to block the drill holes, so that the drill holes can be ventilated, but the actual depth of each drill hole is difficult to accurately measure; and along with the increase of drilling depth, the use quantity of drill rods is also increasing, and because drilling is performed manually, measurement errors caused by human factors easily occur, so that the measurement accuracy is reduced.
At present, no effective means and scientific method for measuring and grasping the accurate depth of each drilling hole exist in the field of coal mines, most of the methods are completed by manually recording the number of drilling rods, and the method has great error because the track is not necessarily in a straight line in the drilling process.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the drill rod depth measuring device of the coal mine drilling machine, which is easy to install, more convenient to use, accurate in data measurement and higher in reliability.
The technical scheme of the invention is as follows: a coal mine drilling machine drill rod depth measuring device comprises
The drill rod measuring box comprises a box body with an inner cavity, the periphery of the box body is sealed, a measuring hole and a mounting hole are formed in the bottom plate of the box body, the box body is fixedly connected with a drill slide seat through the mounting hole penetrating through the bottom of a screw, a support is fixedly arranged in the inner cavity of the box body, the support is fixed on the bottom plate of the box body through the screw, and the support divides the inner cavity of the box body into a measuring cavity and a data acquisition cavity;
the drill rod measuring module comprises a measuring wheel, the measuring wheel is arranged in a measuring cavity, the outer circle of the measuring wheel penetrates through a measuring hole of the bottom plate of the box body and is in contact with the slideway of the drilling machine, one end of the main shaft of the measuring wheel is arranged on the support through a bearing and a compression spring, and the other end of the main shaft of the measuring wheel is connected with the bottom plate of the box body through the bearing and a tension spring;
the data processing and wireless transmission module comprises an explosion-proof box, a non-contact encoder, a data processing module and a battery, wherein the explosion-proof box is arranged in a data acquisition cavity, the non-contact encoder, the data processing module and the battery are all arranged in the explosion-proof box, the non-contact encoder is in non-contact connection with a main shaft of a measuring wheel, the data processing module is electrically connected with the non-contact encoder, and one end of the non-contact encoder detects the rotary motion of the main shaft of the measuring wheel and transmits data to the data processing module.
One side plate on the box body is a loose-leaf door which is communicated with the data acquisition cavity after being opened, and the loose-leaf door is rotationally connected with the other side plate of the box body.
The measuring wheel is a roller wheel which can freely rotate and can move up and down.
The two ends of the extension spring are respectively connected with the bottom plate of the box body and the main shaft through the retaining ring, and the compression spring is arranged in the spring hole of the support and is in a compression state.
The box is assembled by aluminum plates, and the explosion-proof box is detachably connected with the box.
The explosion-proof box is provided with a handle.
Compared with the prior art, the invention has the following advantages: the measuring wheel is driven to rotate through the movement of the drill slide seat to detect the rotation movement of the measuring wheel, the real-time calculation of on-site data can be realized, the precision of the measured data is ensured, and the measuring wheel is easy to install and use, and has more convenient functions and reliability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the data processing and wireless transmission module within an explosion proof box;
in the figure: 1. the device comprises a box body, 11, a support, 12, a compression spring, 13, a loose-leaf door, 14, a measuring hole, 15, a measuring cavity, 16, a data acquisition cavity, 2, a measuring wheel, 3, a data processing and wireless transmission module, 31, a handle, 32, an explosion-proof box, 33, a non-contact encoder, 34, a data processing module, 35, a battery, 4, a drilling machine slide seat, 5 and a drilling machine slide.
Detailed Description
The invention is further illustrated by the following examples in connection with the accompanying drawings.
Referring to fig. 1 and 2, a drill rod depth measuring device of a coal mine drilling machine comprises a drill rod measuring box, a drill rod measuring module, a data processing and wireless transmitting module.
The drilling rod measuring box comprises a box body 1, wherein the box body 1 is formed by assembling aluminum plates, a measuring hole 14 and a mounting hole are formed in a bottom plate of the box body 1, the box body 1 is fixedly connected with a drilling machine slide seat 4 through the mounting hole penetrating through the bottom of a screw, a support 11 is fixedly arranged in an inner cavity of the box body 1, the support 11 is fixed on the bottom plate of the box body 1 through the screw, the drilling rod measuring module can be limited and supported through the support 11, and the inner cavity of the box body 1 is divided into a measuring cavity 15 and a data acquisition cavity 16 by the support 11. One side plate of the box body 1 is a loose-leaf door 13, the loose-leaf door 13 is communicated with the data acquisition cavity 16 after being opened, and the loose-leaf door 13 is rotationally connected with the other side plate of the box body 1. The data processing and wireless transmission module 3 can be operated through the loose-leaf door 13, and after the operation is finished, the loose-leaf door 13 is closed to prevent coal dust from entering the box body 1.
The drill rod measuring module comprises a measuring wheel 2, a main shaft, a bearing and the like, the outer circle of the measuring wheel 2 is in contact with a drilling machine slideway 5, the measuring wheel 2 can also rotate anticlockwise or clockwise along with the movement of a drilling machine slideway seat 4, and in order to ensure that the measuring wheel 2 is in full contact with the drilling machine slideway 5, the two sides of the measuring wheel 2 are provided with adjustable pre-tightening springs: one is an extension spring (not shown in the figure), the other is a compression spring 12, the extension spring is connected with a bottom plate of the box body 1 and the main shaft through a retaining ring to provide one side pretightening force for the measuring wheel 2, the compression spring 12 is placed in a spring hole of the support 11 and is always in a compressed state to provide pretightening force for the other side of the measuring wheel 2, in order to ensure that the measuring wheel 2 can freely rotate and can move up and down, the main shaft is arranged on a bearing, the support 11 is provided with a limiting groove for preventing movement from deviating, and a non-contact encoder 33 is arranged at one end of the main shaft of the measuring wheel 2 and used for detecting the rotation movement of the main shaft. During operation, the drill slide seat 4 moves to drive the drill rod to move, the measuring wheel 2 can rotate accordingly, the encoder 33 detects the rotary motion of the measuring wheel 2, the drilling depth is calculated indirectly by measuring the moving path of the drill slide seat 4, the distance of the orbital motion is recorded by the measuring wheel 2, the measurement error caused by human factors is avoided, and the measuring safety is good and the precision is high.
The data processing and wireless transmission module 3 comprises an explosion-proof box 32, a non-contact encoder 33, a data processing module 34 and a battery 35, wherein a handle 31 is arranged on the explosion-proof box 32, the data processing and wireless transmission module 3 is arranged in the explosion-proof box 32 in the inner cavity of the box body 1, the explosion-proof box 32 of the data processing and wireless transmission module is fixed with a bottom plate at the bottom of the box body 1 through jackscrews to prevent relative sliding, one end of the non-contact encoder 33 detects the rotary motion of the main shaft of the measuring wheel 2 and transmits data to the data processing module 34, and the data processing module 34 is connected with the non-contact encoder 33 through wires.
The data processing and wireless transmission module 3 can read the measured data in the mine in a wireless transmission mode through an explosion-proof handheld computer, or the data processing and wireless transmission module 3 is detached from the box body 1 and the data is read on the ground.
The fixed jackscrew of the module can be removed to directly take away when the data processing and wireless transmission module 3 is maintained or charged, the whole drill rod depth measuring device of the coal mine drilling machine does not need to be moved away, the rechargeable battery 35 provides a direct current power supply for the system, and the electric quantity of the battery can be identified through software, so that whether the battery is charged or not is determined.
During drilling, the drill pipe is mounted on a rig drilling station which is mounted on the rig skid 4. When the drill rod rotates under the action of a hydraulic system on the drilling platform in the drilling process to provide torque required by drilling, the drill rod, the drill rig slide seat 4 and the drilling platform synchronously advance towards the drilling direction, after one drill rod is drilled, the drill rig slide seat 4 and the drilling platform synchronously retreat after the drill rod is loosened by the drilling platform, the measuring wheel 2 simultaneously rotates in the opposite direction, and the drilling platform is connected with the tail end of the previous drill rod after clamping one drill rod and then drills. The drilling machine slide way 5 is arranged on the drilling machine, the excircle of the measuring wheel 2 is in contact with the drilling machine slide way 5, the drilling machine slide way seat 4 drives the box body 1 to move along with the movement of the drilling machine slide way seat 4, the measuring wheel 2 rotates along with the drilling machine slide way 5, the measuring wheel 2 always rotates forwards or backwards on the drilling machine slide way 5 along with the lengthening of a drill rod, and thus, the measured value is well depth data during drilling (forward rotation), and the retreated data is subtracted through the data processing module. The support 11 provides limit and support for the linear motion of the device and ensures the centering of the measuring wheel 2; the measuring wheel 2 is always in contact with the drill slide 5 under the action of springs at both sides, so that the measuring precision is ensured. The contactless encoder 33 detects the rotational movement of the measuring wheel 2 and transmits the distance travelled by it to the data processing module 34 in real time, the data processing module 34 processing and storing the data processing in order to facilitate the reading of the data by the engineer.
The present invention is not limited to the above-described embodiments, and various changes may be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the contents after the changes still fall within the scope of the present invention.
Claims (3)
1. The utility model provides a colliery rig drilling rod degree of depth measuring device which characterized in that: comprising
The drill rod measuring box comprises a box body with an inner cavity, the periphery of the box body is sealed, a measuring hole and a mounting hole are formed in the bottom plate of the box body, the box body is fixedly connected with a drill slide seat through the mounting hole penetrating through the bottom of a screw, a support is fixedly arranged in the inner cavity of the box body, the support is fixed on the bottom plate of the box body through the screw, and the support divides the inner cavity of the box body into a measuring cavity and a data acquisition cavity;
the drill rod measuring module comprises a measuring wheel, the measuring wheel is arranged in a measuring cavity, the outer circle of the measuring wheel penetrates through a measuring hole of the bottom plate of the box body and is in contact with the slideway of the drilling machine, one end of the main shaft of the measuring wheel is arranged on the support through a bearing and a compression spring, and the other end of the main shaft of the measuring wheel is connected with the bottom plate of the box body through the bearing and a tension spring;
the data processing and wireless transmission module comprises an explosion-proof box, a non-contact encoder, a data processing module and a battery, wherein the explosion-proof box is arranged in the data acquisition cavity, the non-contact encoder, the data processing module and the battery are all arranged in the explosion-proof box, the non-contact encoder is in non-contact connection with a main shaft of the measuring wheel, the data processing module is electrically connected with the non-contact encoder, and one end of the non-contact encoder detects the rotary motion of the main shaft of the measuring wheel and transmits data to the data processing module;
the measuring wheel is a roller wheel which can freely rotate and can move up and down; the two ends of the extension spring are respectively connected with the bottom plate of the box body and the main shaft through the retaining ring, and the compression spring is arranged in the spring hole of the support and is in a compression state; a handle is arranged on the explosion-proof box;
when the drill rod rotates under the action of a hydraulic system on a drilling platform in the drilling process to provide torque required by drilling, the drill rod, a drill slide seat and the drilling platform synchronously advance towards the drilling direction, after one drill rod is drilled, the drill slide seat and the drilling platform synchronously retreat after the drill rod is loosened by the drilling platform, the measuring wheel simultaneously rotates in the opposite direction, and the drilling platform is connected with the tail end of the previous drill rod after clamping one drill rod, and then drills; the drill slide is arranged on the drill, the excircle of the measuring wheel is in contact with the drill slide, the drill slide seat drives the box body to move along with the movement of the drill slide seat, the measuring wheel rotates along the drill slide, the measuring wheel always rotates forwards or backwards on the drill slide along with the lengthening of the drill rod, the measured value during drilling is well depth data, and the retreated data is subtracted through the data processing module.
2. The coal mine drilling machine drill rod depth measuring device according to claim 1, wherein: one side plate on the box body is a loose-leaf door which is communicated with the data acquisition cavity after being opened, and the loose-leaf door is rotationally connected with the other side plate of the box body.
3. The coal mine drilling machine drill rod depth measuring device according to claim 1, wherein: the box is assembled by aluminum plates, and the explosion-proof box is detachably connected with the box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308728.9A CN108266181B (en) | 2018-04-09 | 2018-04-09 | Drill rod depth measuring device of coal mine drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308728.9A CN108266181B (en) | 2018-04-09 | 2018-04-09 | Drill rod depth measuring device of coal mine drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266181A CN108266181A (en) | 2018-07-10 |
| CN108266181B true CN108266181B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810308728.9A Active CN108266181B (en) | 2018-04-09 | 2018-04-09 | Drill rod depth measuring device of coal mine drilling machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113216939B (en) * | 2021-03-17 | 2024-05-10 | 中煤科工集团沈阳研究院有限公司 | Drilling machine drill depth meter and meter counting method |
| CN117605463B (en) * | 2023-11-23 | 2025-03-11 | 中煤科工西安研究院(集团)有限公司 | A flexible wheel-type orifice device and method for measuring multiple drilling parameters |
| CN118242065B (en) * | 2024-05-29 | 2024-07-26 | 莱州亚通重型装备有限公司 | Drill rod depth measuring device of coal mine drilling machine |
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