CN104533412A - Ultrasonic coal-rock recognition device of coal cutter - Google Patents
Ultrasonic coal-rock recognition device of coal cutter Download PDFInfo
- Publication number
- CN104533412A CN104533412A CN201410775674.9A CN201410775674A CN104533412A CN 104533412 A CN104533412 A CN 104533412A CN 201410775674 A CN201410775674 A CN 201410775674A CN 104533412 A CN104533412 A CN 104533412A
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- coal
- pipe part
- ultrasonic
- rock
- ultrasonic transducer
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- 239000003245 coal Substances 0.000 title claims abstract description 62
- 239000011435 rock Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005065 mining Methods 0.000 claims description 25
- 239000011521 glass Substances 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an ultrasonic coal-rock recognition device of a coal cutter. The ultrasonic coal-rock recognition device comprises a water sprayer and an ultrasonic transducer which can be mounted on a rocker arm of the coal cutter, wherein the water sprayer comprises a water inlet pipe part and a water outlet pipe part which are communicated, an included angle exists between an axial line of the water inlet pipe part and an axial line of the water inlet pipe part; a nozzle nut is arranged at the head end of the water outlet pipe part, the ultrasonic transducer is arranged at the tail end of the water outlet pipe part, the axial line of the water outlet pipe part is coincident to an axial line of the ultrasonic transducer; when the ultrasonic coal-rock recognition device works, the ultrasonic transducer sends ultrasonic waves to a coal-rock interface along a direction of the axial line by using a water flow sprayed to the coal-rock interface by the water sprayer as a coupling medium, and receives echo waves reflected by the coal-rock interface in real time, coal and rock recognition is performed according to the characteristics of the echo waves, so that the scientific basis is provided for self-adaptive heightening of the coal cutter, the coal cutter is prevented from cutting hard rock, and the efficiency of the coal cutter is improved.
Description
Technical field
The present invention relates to the ultrasonic coal and rock identify device of a kind of coal-winning machine.
Background technology
Along with the development of Coal Mining Technology level, and country's improving constantly that occupational health is required, the operation process of traditional coal mining work plane is just towards few peopleization and unmanned future development.Coal-winning machine is one of capital equipment of underground coal mine fully-mechanized mining working, therefore the important step be not only and realized coal-face automation is heightened in the automation realizing rocker arm of coal mining machine and cylinder, is also raising mine equipment Reliability, extends the important means that coal mine machinery equips application life, guarantee operator safety.And the key technology of the rocking arm automatic adjustment height of coal-winning machine is the automatic identification how realizing work plane coal seam and crag, automatically adjust the height of rocker arm of coal mining machine according to this, to getting around hard rock top, base plate as far as possible, prevent coal winning machine cutting bit destroy by hard rock; Simultaneously as far as possible comprehensive cut coal seam again, ensures the integral backstopping rate in coal seam, improves the production efficiency of coal mining enterprise.
Current, apply maximum coal-winning machines and heighten the manual adjustment that technological means still relies on mining face under mine operator, dangerous large, heighten that precision is low, inefficiency.Some other means are also taked in the research of the external coal petrography automatic identification field of recent year, such as: based on the sensor method of coal petrography GR x radiation x characteristic, based on the Coal-Rock Interface Recognition sensor method of coal-winning machine cutting force response, coal seam interface infra-red detection method etc., but the actual effect used is all not ideal, does not apply on a large scale.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the ultrasonic coal and rock identify device of a kind of coal-winning machine, by analyzing hyperacoustic echo-signal, automatically identify the coal-rock interface treating mining coal seam, the automatic adjustment height of auxiliary rocker arm of coal mining machine.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
The ultrasonic coal and rock identify device of a kind of coal-winning machine, comprise and can be arranged on water jet on rocker arm of coal mining machine and ultrasonic transducer, described water jet comprises the water inlet pipe part and outlet pipe part that are connected, there is angle between the axis of water inlet pipe part and the axis of outlet pipe part; Outlet pipe portion tip is provided with shower nozzle nut, and ultrasonic transducer is arranged on outlet pipe part end tail, the axis of outlet pipe part and the axes coincide of ultrasonic transducer; During work, the current that ultrasonic transducer ejects using water jet to coal-rock interface are as couplant, ultrasonic wave is sent in the axial direction to coal-rock interface, and the echo that real-time reception coal-rock interface is reflected back, coal and rock identify is carried out according to echoing characteristics (comprising echo time, energy and spectral characteristic etc.), self adaptation for coal-winning machine is heightened and is provided scientific basis, avoids coal-winning machine cut hard rock, improves coal-winning machine efficiency.
Preferably; the effect of described ultrasonic transducer is by access high frequency alternating current; to send ultrasonic wave; specifically comprise ultrasonic transducer shell, organic glass screening glass, piezoelectric chip and damping block; described ultrasonic transducer outer cover port and outlet pipe part end tail are tightly connected; organic glass screening glass, piezoelectric chip and damping block are successively set on ultrasonic transducer shell inner cavity from front to back, and the sealing of machine glass protection sheet cuts off outlet pipe part and ultrasonic transducer shell inner cavity.
Preferably, the end face of described ultrasonic transducer shell inner cavity is provided with lead-in wire horn mouth, the B electrode cable connecting piezoelectric chip upper surface is drawn from lead-in wire horn mouth with the A electrode cable being connected piezoelectric chip lower surface.
Preferably, the angle between the axis of described water inlet pipe part and the axis of outlet pipe part is 90 °.
Preferably, the diameter of described outlet pipe part is more than or equal to the diameter of (generally slightly larger than) piezoelectric chip.
Preferably, adopt helicitic texture to connect between water jet and ultrasonic transducer shell, be convenient to installation and maintenance.
Preferably, the ultrasonic coal and rock identify device of this coal-winning machine is provided with installing hole, can be bolted, be directly installed on the rocking arm of coal-winning machine.
Preferably, the water jet used of mining original on rocker arm of coal mining machine is carried out Curve guide impeller, make it can simultaneously as the water jet of coal mining water jet and ultrasonic coal and rock identify device.
Beneficial effect: the ultrasonic coal and rock identify device of coal-winning machine provided by the invention, the coal-rock interface information in work plane coal seam can be obtained by installing ultrasonic coal and rock identify device, the automatic adjustment height of auxiliary rocker arm of coal mining machine, reduce coal winning machine cutting bit wear extent and fault rate, improve coal-winning machine application life, reduce work plane operating personnel quantity, reduce labour intensity; Adopt ultrasonic sensing technology to have signal stabilization antijamming capability strong, equipment cost is low simultaneously, to advantages such as operating personnel are harmless.
Accompanying drawing explanation
Fig. 1 is the ultrasonic coal and rock identify structure drawing of device of coal-winning machine of the present invention;
Fig. 2 is coal-winning machine of the present invention ultrasonic coal and rock identify device scheme of installation;
In figure: 1-water inlet pipe part; 2-outlet pipe part; 3-ultrasonic transducer shell; 4-organic glass screening glass; 5-piezoelectric chip; 6-damping block; 7-A electrode cable; 8-B electrode cable; 9-rocker arm of coal mining machine; 10-coal mining machine roller; The ultrasonic coal and rock identify device of 11-coal-winning machine; 12-ultrasonic coupling water column; 13-treats coal mining wall.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be the ultrasonic coal and rock identify device of a kind of coal-winning machine as shown in Figure 1 and Figure 2, comprise and can be arranged on water jet on rocker arm of coal mining machine and ultrasonic transducer, described water jet comprises the water inlet pipe part 1 and outlet pipe part 2 that are connected, and the angle between the axis of water inlet pipe part 1 and the axis of outlet pipe part 2 is 90 °; Outlet pipe part 2 termination is provided with shower nozzle nut, and ultrasonic transducer is arranged on outlet pipe part 2 end tail, the axis of outlet pipe part 2 and the axes coincide of ultrasonic transducer; During work, the current that ultrasonic transducer ejects using water jet to coal-rock interface, as couplant, send ultrasonic wave to coal-rock interface in the axial direction, and the echo that real-time reception coal-rock interface is reflected back, carry out coal and rock identify according to echoing characteristics.
Described ultrasonic transducer comprises ultrasonic transducer shell 3, organic glass screening glass 4, piezoelectric chip 5 and damping block 6, described ultrasonic transducer shell 3 port and outlet pipe part 2 end tail are tightly connected, organic glass screening glass 4, piezoelectric chip 5 and damping block 6 are successively set on ultrasonic transducer shell 3 inner chamber from front to back, and the sealing of machine glass protection sheet 4 cuts off outlet pipe part 2 and ultrasonic transducer shell 3 inner chamber; The end face of described ultrasonic transducer shell 3 inner chamber is provided with lead-in wire horn mouth, and the B electrode cable 8 connecting piezoelectric chip 5 upper surface is drawn from lead-in wire horn mouth with the A electrode cable 7 being connected piezoelectric chip 5 lower surface.
The diameter of described outlet pipe part 2 is slightly larger than the diameter of piezoelectric chip 5.
Be threaded connection between described outlet pipe part 2 and shower nozzle nut, the first half of the ultrasonic coal and rock identify device of composition coal-winning machine, major function is the injection being realized ultrasonic coupling water column 12 by water jet structure, current are provided by rocker arm of coal mining machine 9, need to ensure certain pressure, thus the lift of ultrasonic coupling water column 12 is met the demands, and ensure hyperacoustic coupling effect.Machine glass protection sheet 4 is installed water-tight by rubber seal, ensure that each components and parts of ultrasonic transducer inside normally work.Access high frequency alternating current to A electrode cable 7 and B electrode cable 8 two ends by rocker arm of coal mining machine 9, produce ultrasonic wave.The ultrasonic wave that ultrasonic transducer sends treats coal mining wall 13 surface through propagating into of ultrasonic coupling water column 12, ultrasonic wave is treating that reflection and transmission occur at the interface of coal mining wall 13, part reflection echo is returned by ultrasonic coupling water column 12 and is received by piezoelectric chip 5, and the analytical system on input rocker arm of coal mining machine 9 carries out analysis, the identification of coal-rock interface.
The ultrasonic coal and rock identify device of this coal-winning machine, is bolted and is arranged on rocker arm of coal mining machine 9, move along with the movement of coal-winning machine, real-time detection and Identification coal-rock interface.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the ultrasonic coal and rock identify device of coal-winning machine, comprise the water jet that can be arranged on rocker arm of coal mining machine, it is characterized in that: also comprise ultrasonic transducer, described water jet comprises the water inlet pipe part (1) and outlet pipe part (2) that are connected, there is angle between the axis of water inlet pipe part (1) and the axis of outlet pipe part (2); Outlet pipe part (2) termination is provided with shower nozzle nut, and ultrasonic transducer is arranged on outlet pipe part (2) end tail, the axis of outlet pipe part (2) and the axes coincide of ultrasonic transducer; During work, the current that ultrasonic transducer ejects using water jet to coal-rock interface, as couplant, send ultrasonic wave to coal-rock interface in the axial direction, and the echo that real-time reception coal-rock interface is reflected back, carry out coal and rock identify according to echoing characteristics.
2. the ultrasonic coal and rock identify device of coal-winning machine according to claim 1, it is characterized in that: described ultrasonic transducer comprises ultrasonic transducer shell (3), organic glass screening glass (4), piezoelectric chip (5) and damping block (6), described ultrasonic transducer shell (3) port and outlet pipe part (2) hold tail to be tightly connected, organic glass screening glass (4), piezoelectric chip (5) and damping block (6) are successively set on ultrasonic transducer shell (3) inner chamber from front to back, machine glass protection sheet (4) sealing cuts off outlet pipe part (2) and ultrasonic transducer shell (3) inner chamber.
3. the ultrasonic coal and rock identify device of coal-winning machine according to claim 2, it is characterized in that: the end face of described ultrasonic transducer shell (3) inner chamber is provided with lead-in wire horn mouth, the B electrode cable (8) connecting piezoelectric chip (5) upper surface is drawn from lead-in wire horn mouth with the A electrode cable (7) being connected piezoelectric chip (5) lower surface.
4. the ultrasonic coal and rock identify device of coal-winning machine according to claim 1, is characterized in that: the diameter of described outlet pipe part (2) is more than or equal to the diameter of piezoelectric chip (5).
5. the ultrasonic coal and rock identify device of coal-winning machine according to claim 1, is characterized in that: the angle between the axis of described water inlet pipe part (1) and the axis of outlet pipe part (2) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775674.9A CN104533412B (en) | 2014-12-15 | 2014-12-15 | A kind of coal-winning machine ultrasonic coal petrography identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775674.9A CN104533412B (en) | 2014-12-15 | 2014-12-15 | A kind of coal-winning machine ultrasonic coal petrography identification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533412A true CN104533412A (en) | 2015-04-22 |
| CN104533412B CN104533412B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410775674.9A Expired - Fee Related CN104533412B (en) | 2014-12-15 | 2014-12-15 | A kind of coal-winning machine ultrasonic coal petrography identification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533412B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269280A (en) * | 2017-07-18 | 2017-10-20 | 山东科技大学 | Coal petrography identifying device based on flitting cut |
| CN115287932A (en) * | 2022-07-25 | 2022-11-04 | 永发（江苏）模塑包装科技有限公司 | Ultrasonic dewatering drying cylinder with novel super-energy-saving structure and process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040413A (en) * | 1988-08-11 | 1990-03-14 | 煤炭工业(专利)有限公司 | Mining machine cutter improvement guidance method and equipment |
| US4981327A (en) * | 1989-06-09 | 1991-01-01 | Consolidation Coal Company | Method and apparatus for sensing coal-rock interface |
| CN201265418Y (en) * | 2008-09-01 | 2009-07-01 | 石家庄煤矿机械有限责任公司 | Automatic positioning and cutting system of development machine |
| CN103899308A (en) * | 2012-12-25 | 2014-07-02 | 刘素华 | Method for detecting and controlling and protecting mining machine, detection of method and operation of controlling and protecting impacting mining machine by detection results |
-
2014
- 2014-12-15 CN CN201410775674.9A patent/CN104533412B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040413A (en) * | 1988-08-11 | 1990-03-14 | 煤炭工业(专利)有限公司 | Mining machine cutter improvement guidance method and equipment |
| US4981327A (en) * | 1989-06-09 | 1991-01-01 | Consolidation Coal Company | Method and apparatus for sensing coal-rock interface |
| CN201265418Y (en) * | 2008-09-01 | 2009-07-01 | 石家庄煤矿机械有限责任公司 | Automatic positioning and cutting system of development machine |
| CN103899308A (en) * | 2012-12-25 | 2014-07-02 | 刘素华 | Method for detecting and controlling and protecting mining machine, detection of method and operation of controlling and protecting impacting mining machine by detection results |
Non-Patent Citations (2)
| Title |
|---|
| OBX1NR6O5C: "第七章超声波传感器", 《百度文库》, 3 June 2011 (2011-06-03), pages 1 - 7 * |
| 安•格日瓦克等: "《煤矿采掘工作面生产自动化》", 31 May 1984, article "落煤滚筒位置的调节", pages: 29-36 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269280A (en) * | 2017-07-18 | 2017-10-20 | 山东科技大学 | Coal petrography identifying device based on flitting cut |
| CN107269280B (en) * | 2017-07-18 | 2019-12-27 | 山东科技大学 | Coal rock recognition device based on cutting of drum shearer |
| CN115287932A (en) * | 2022-07-25 | 2022-11-04 | 永发（江苏）模塑包装科技有限公司 | Ultrasonic dewatering drying cylinder with novel super-energy-saving structure and process |
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| CN104533412B (en) | 2016-08-24 |
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Address after: 221116 Research Institute of China University of Mining and Technology,, Jiangsu Applicant after: China University of Mining & Technology Address before: 221116 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Applicant before: China University of Mining & Technology |
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Granted publication date: 20160824 Termination date: 20161215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |