CN104533412B - A kind of coal-winning machine ultrasonic coal petrography identification device - Google Patents
A kind of coal-winning machine ultrasonic coal petrography identification device Download PDFInfo
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- CN104533412B CN104533412B CN201410775674.9A CN201410775674A CN104533412B CN 104533412 B CN104533412 B CN 104533412B CN 201410775674 A CN201410775674 A CN 201410775674A CN 104533412 B CN104533412 B CN 104533412B
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- 239000003245 coal Substances 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000005065 mining Methods 0.000 claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 19
- 238000002604 ultrasonography Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 13
- 238000012216 screening Methods 0.000 claims description 8
- 229920005479 Lucite® Polymers 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 7
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 7
- 230000026683 transduction Effects 0.000 claims 1
- 238000010361 transduction Methods 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 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
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003292 glue Substances 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
- 238000009434 installation Methods 0.000 description 1
- 238000004573 interface analysis Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 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
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- 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)
- Earth Drilling (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The invention discloses a kind of coal-winning machine ultrasonic coal petrography identification device, including the water jet that may be mounted on rocker arm of coal mining machine and ultrasonic transducer, described water jet includes water inlet pipe part and the outlet pipe part being connected, and there is angle between axis and the axis of outlet pipe part of water inlet pipe part；Outlet pipe portion tip is provided with shower nozzle nut, and ultrasonic transducer is arranged on outlet pipe part end tail, and the axis of outlet pipe part and the axis of ultrasonic transducer coincide；During work, the current that ultrasonic transducer ejects using water jet to coal-rock interface are as couplant, ultrasound 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 petrography identification is carried out according to echoing characteristics, self adaptation for coal-winning machine heightens offer scientific basis, it is to avoid coal-winning machine cut hard rock, improves coal-winning machine efficiency.
Description
Technical field
The present invention relates to a kind of coal-winning machine ultrasonic coal petrography identification device.
Background technology
Along with the development of Coal Mining Technology level, and occupational health requirement is improved constantly by country, traditional
The operation process of coal mining work surface just develops towards few peopleization and unmanned direction.Coal-winning machine is that underground coal mine is comprehensive to be adopted
One of capital equipment of work surface, therefore realizes the automatization of rocker arm of coal mining machine and cylinder and heightens to be not only and realize coal work
The important step of face automatization is also raising mine equipment Reliability, extend coal mine machinery equips service life, ensures behaviour
Make the important means of personal security.And the key technology of the rocking arm automatic adjustment height of coal-winning machine be how to realize work surface coal seam and
The automatic identification of crag, adjusts the height of rocker arm of coal mining machine the most automatically, to getting around hard rock top, base plate as far as possible,
Prevent coal winning machine cutting bit from being destroyed by hard rock；The most comprehensively cut coal seam, it is ensured that the integral backstopping in coal seam
Rate, improves the production efficiency of coal mining enterprise.
Currently, apply most coal-winning machines to heighten technological means and still rely on manually adjusting of mining face under mine operator, danger
Dangerous big, heighten that precision is low, inefficiency.The research of recent year external coal petrography automatic identification field also takes one
Other means a little, such as: sensor method based on coal petrography GR x radiation x characteristic, ring based on coal-winning machine cutting force
The Coal-Rock Interface Recognition sensor method answered, coal seam interface infra-red detection method etc., but actually used effect is the most less managed
Think, not popularization and application on a large scale.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of coal-winning machine ultrasonic coal petrography identification
Device, by being analyzed the echo-signal of ultrasound wave, automatically identifies the coal-rock interface treating mining coal seam, assists coal-winning machine
The automatic adjustment height of rocking arm.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of coal-winning machine ultrasonic coal petrography identification device, including the water jet that may be mounted on rocker arm of coal mining machine and ultrasonic waves
Energy device, described water jet includes water inlet pipe part and the outlet pipe part being connected, the axis of water inlet pipe part and outlet pipe
Angle is there is between the axis of part；Outlet pipe portion tip is provided with shower nozzle nut, and ultrasonic transducer is arranged on out
Water pipe sections end tail, the axis of outlet pipe part and the axis of ultrasonic transducer coincide；During work, ultrasonic wave transducer
The current that device ejects using water jet to coal-rock interface, as couplant, send ultrasonic to coal-rock interface in the axial direction
Ripple, and the echo that real-time reception coal-rock interface is reflected back, (include that echo time, energy and frequency spectrum are special according to echoing characteristics
Property etc.) carrying out coal petrography identification, the self adaptation for coal-winning machine heightens offer scientific basis, it is to avoid coal-winning machine cut hard rock, carries
High coal-winning machine efficiency.
Preferably, the effect of described ultrasonic transducer is by accessing high frequency alternating current, to send ultrasound wave, specifically
Including ultrasonic transducer shell, lucite screening glass, piezoelectric chip and damping block, described ultrasonic transducer outer cover port
Being tightly connected with outlet pipe part end tail, lucite screening glass, piezoelectric chip and damping block are successively set on from front to back
Ultrasonic transducer shell inner cavity, machine glass protection sheet seals and 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, connects piezoelectric chip upper end
The A electrode cable of the B electrode cable in face and connection piezoelectric chip lower surface is drawn from lead-in wire horn mouth.
Preferably, the angle between axis and the axis of outlet pipe part of described water inlet pipe part is 90 °.
Preferably, the diameter of described outlet pipe part is more than or equal to the diameter of (being typically slightly larger than) piezoelectric chip.
Preferably, helicitic texture is used to connect between water jet and ultrasonic transducer shell, it is simple to install and safeguard.
Preferably, this coal-winning machine ultrasonic coal petrography identification device is provided with installing hole, can be bolted, directly pacify
It is contained on the rocking arm of coal-winning machine.
Preferably, the water jet used of mining original on rocker arm of coal mining machine is improved design so that it can make simultaneously
For coal mining water jet and the water jet of ultrasonic coal petrography identification device.
Beneficial effect: the coal-winning machine ultrasonic coal petrography identification device that the present invention provides, can fill by installing ultrasonic coal petrography identification
Put the coal-rock interface information obtaining work surface coal seam, the automatic adjustment height of auxiliary rocker arm of coal mining machine, reduce coal winning machine cutting bit abrasion
Amount and fault rate, improve coal-winning machine service life, reduces work surface operating personnel's quantity, reduces labor intensity；Adopt simultaneously
Having signal stabilization capacity of resisting disturbance by ultrasonic sensing technology strong, equipment cost is low, to advantages such as operating personnel are harmless.
Accompanying drawing explanation
Fig. 1 is the coal-winning machine ultrasonic coal petrography identification structure drawing of device of the present invention；
Fig. 2 is the coal-winning machine ultrasonic coal petrography identification device scheme of installation of the present invention；
In figure: 1-water inlet pipe part；2-outlet pipe part；3-ultrasonic transducer shell；4-lucite 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；
11-coal-winning machine ultrasonic coal petrography identification device；12-ultrasonic coupling water column；13-treats coal mining wall.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
It is a kind of coal-winning machine ultrasonic coal petrography identification device as shown in Figure 1 and Figure 2, including may be mounted on rocker arm of coal mining machine
Water jet and ultrasonic transducer, described water jet includes water inlet pipe part 1 and the outlet pipe part 2 being connected, enters
Angle between axis and the axis of outlet pipe part 2 of water pipe sections 1 is 90 °；Arrange in outlet pipe part 2 termination
Having shower nozzle nut, ultrasonic transducer is arranged on outlet pipe part 2 end tail, the axis of outlet pipe part 2 and ultrasonic waves
The axis of energy device coincides；During work, the current that ultrasonic transducer ejects using water jet to coal-rock interface are as coupling
Medium, sends ultrasound wave, and the echo that real-time reception coal-rock interface is reflected back to coal-rock interface in the axial direction, according to returning
Wave property carries out coal petrography identification.
Described ultrasonic transducer includes ultrasonic transducer shell 3, lucite screening glass 4, piezoelectric chip 5 and damping
Block 6, described ultrasonic transducer shell 3 port is tightly connected with outlet pipe part 2 end tail, lucite 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 machine glass protection sheet 4 is close
The disconnected outlet pipe part 2 of packing and ultrasonic transducer shell 3 inner chamber；Set on the end face of described ultrasonic transducer shell 3 inner chamber
It is equipped with lead-in wire horn mouth, connects the B electrode cable 8 of piezoelectric chip 5 upper surface and connect the A of piezoelectric chip 5 lower surface
Electrode cable 7 is drawn from lead-in wire horn mouth.
The diameter of described outlet pipe part 2 is slightly larger than the diameter of piezoelectric chip 5.
It is threaded connection between described outlet pipe part 2 and shower nozzle nut, composition coal-winning machine ultrasonic coal petrography identification device
Top half, major function is to be realized the injection of ultrasonic coupling water column 12 by water jet structure, and current are shaken by coal-winning machine
Arm 9 provides, and needs to ensure certain pressure, so that the lift of ultrasonic coupling water column 12 meets requirement, and ensures
The coupling effect of ultrasound wave.Machine glass protection sheet 4 is installed water-tight by glue envelope, it is ensured that each within ultrasonic transducer
Components and parts normally work.High frequency alternating current is accessed to A electrode cable 7 and B electrode cable 8 by rocker arm of coal mining machine 9
Two ends, produce ultrasound wave.The ultrasound wave that ultrasonic transducer sends through ultrasonic coupling water column 12 travel to wait to mine
Wall 13 surface, there is reflection and transmission at the interface treating coal mining wall 13 in ultrasound wave, partially reflective echo is again by ultrasonic coupling
Heshui post 12 returns and is received by piezoelectric chip 5, and the analysis system on input rocker arm of coal mining machine 9 carries out dividing of coal-rock interface
Analysis, identification.
This coal-winning machine ultrasonic coal petrography identification device, is bolted and is arranged on rocker arm of coal mining machine 9, along with coal-winning machine
Move and move, detection in real time and identification coal-rock interface.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (4)
1. a coal-winning machine ultrasonic coal petrography identification device, including the water jet that may be mounted on rocker arm of coal mining machine, it is special
Levy and be: also include water inlet pipe part (1) and outlet pipe portion that ultrasonic transducer, described water jet include being connected
Divide (2), between axis and the axis of outlet pipe part (2) of water inlet pipe part (1), there is angle；In outlet pipe portion
Dividing (2) termination to be provided with shower nozzle nut, ultrasonic transducer is arranged on outlet pipe part (2) end tail, outlet pipe part
(2) axis and the axis of ultrasonic transducer coincide；During work, ultrasonic transducer with water jet to coal petrography circle
The current that face is ejected, as couplant, send ultrasound wave, and real-time reception coal petrography circle to coal-rock interface in the axial direction
The echo that face is reflected back, carries out coal petrography identification according to echoing characteristics；The diameter of described outlet pipe part (2) is more than or equal to
The diameter of piezoelectric chip (5).
Coal-winning machine the most according to claim 1 ultrasonic coal petrography identification device, it is characterised in that: described ultrasonic waves
Ultrasonic transducer shell (3), lucite screening glass (4), piezoelectric chip (5) and damping block (6) can be included by device,
Described ultrasonic transducer shell (3) port is tightly connected with outlet pipe part (2) end tail, lucite screening glass (4),
Piezoelectric chip (5) and damping block (6) are successively set on ultrasonic transducer shell (3) inner chamber, organic glass from front to back
Glass screening glass (4) seals and cuts off outlet pipe part (2) and ultrasonic transducer shell (3) inner chamber.
Coal-winning machine the most according to claim 2 ultrasonic coal petrography identification device, it is characterised in that: described ultrasonic transduction
It is provided with lead-in wire horn mouth on the end face of device shell (3) inner chamber, connects the B electrode cable of piezoelectric chip (5) upper surface
(8) and connect piezoelectric chip (5) lower surface A electrode cable (7) from lead-in wire horn mouth draw.
Coal-winning machine the most according to claim 1 ultrasonic coal petrography identification device, it is characterised in that: described water inlet pipe portion
Dividing the angle between axis and the axis of outlet pipe part (2) of (1) 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 CN104533412A (en) | 2015-04-22 |
| CN104533412B true CN104533412B (en) | 2016-08-24 |
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| 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 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 (1)
| Title |
|---|
| 第七章超声波传感器;obx1nr6o5c;《百度文库》;20110603;第1-7页 * |
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| CN104533412A (en) | 2015-04-22 |
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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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