CN101139932A - Construction shield for underground mining - Google Patents
Construction shield for underground mining Download PDFInfo
- Publication number
- CN101139932A CN101139932A CNA2007101457940A CN200710145794A CN101139932A CN 101139932 A CN101139932 A CN 101139932A CN A2007101457940 A CNA2007101457940 A CN A2007101457940A CN 200710145794 A CN200710145794 A CN 200710145794A CN 101139932 A CN101139932 A CN 101139932A
- Authority
- CN
- China
- Prior art keywords
- shield support
- sound transducer
- top cover
- sliding part
- aforementioned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21C35/08—Guiding the machine
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
Abstract
A covering bracket which is used for the underground mining is provided with a sliding part and a top cover, at least one push rod is arranged between the sliding part and the top cover, and at least one sound sensor is arranged at the top cover and/or sliding part.
Description
Technical field
The present invention relates to a kind of shield support that is used for underground mining, it has slipper (runner) and top cover, arranges at least one push rod between this sliding part and top cover.Such shield support is known, and is used for roof supporting when underground mining.
Background technology
When underground mining, need to measure the sound wave that in rock, transmits usually,, can distinguish digger thus and whether dig fully in the coal, perhaps whether dug unwanted lithosphere to carry out boundary layer identification.
Proposed piezoelectric transducer is integrated in the bore bit of extractive equipment to carry out barrier layer identification.Comparatively speaking; can obtain unaltered signal thus with can't deny; but, therefore always need to carry out signal and transmit, and described bore bit is owing to the machine part and the rugged geographical environment that move damage through regular meeting because sensor is connected on (moving) bore bit.In addition, proposed sound transducer is connected on the robotic arm that supports the digging instrument.Yet the problem that this scheme exists is, owing to the level of noise that the transmission of digging instrument produces, described sound transducer is subjected to the influence of strong noise.
Summary of the invention
The objective of the invention is to further improve the shield support that is used for underground mining, so that can carry out barrier layer identification with low cost in a simple manner according to claim 1 preamble.
This purpose realizes by the feature of claim 1, particularly realizes by at least one sound transducer is connected on top cover or the sliding part.
Specifically, find unexpectedly, to the measurement of the sound wave in rock, propagated can with simply and very reliable mode by sound transducer being connected to shield support top cover or sliding part on realize.Because when extractive equipment does not dig in the coal fully, the sound wave marked change that measures by sound transducer, thereby can carry out reliable barrier layer by scaffold according to the present invention and discern.Surprisingly, even described sound transducer both be not arranged on the digging instrument, also be not arranged on the digger, this also can realize.Because the sound wave of propagating in rock before the rock rupture can simply and reliably be determined by the sound transducer that is connected on the described shield support, thereby can also utilize according to scaffold of the present invention and carry out the rock rupture prediction.
Advantageous embodiment of the present invention is described in manual, accompanying drawing and dependent claims.
Described sound transducer can advantageously be arranged in the bottom of described top cover or the top of described sliding part, can realize that thus the simple assembling of sensor is connected with protection, is not subjected to the passive sound wave that weakens and can not measure.Sound transducer is arranged near the push rod, can reach good especially effect.
If sound transducer not only is connected on the top cover but also be connected on the sliding part, when considering these two sensor signals, then can also determine the source position of coming of tested sound wave, this comes the source position to carry out the special concern of rock rupture forecasting institute.Thus, being arranged on sound transducer and sound transducer on being arranged on sliding part on the top cover needn't be arranged on one and the identical shield support, also in framework of the present invention.
According to particularly advantageous embodiment, described sound transducer is fitted on the surface of shield support, though promptly needn't carry out machine, the hole for example is set described sensor is installed, but still the sound wave from rock fully can be sent to this sensor by this shield support shield support.
Description of drawings
Set forth the present invention fully by way of example with reference to advantageous embodiment below.
Fig. 1 shows the lateral view of shield support.
The specific embodiment
Shield support shown in Figure 1 has sliding part 10 and top cover 12, and they are connected with each other by two push rods 14.
The bottom adjacent that first sensor 16 is connected to top cover 12 with push rod 14.On the top of sliding part 10, another sound transducer 18 is connected to the similar position place adjacent with push rod 14.These two sound transducers all are that piezoelectric type transmits sensor, and can be according to being configured like that described in DE 103 54 281 A1, and the content of DE 103 54 281 A1 is by reference fully as theme of the present disclosure.
Two sensors 16 and 18 are fitted to respectively on the surface of shield support, are not provided with for this purpose on this surface and installing port of providing etc.Certainly, described sensor is fixed on by being threaded in this shield support also in framework of the present invention.Yet, be according to the special benefits of the solution of the present invention, structures such as installing port, installing hole needn't be provided.
In the longwell in underground mining, can use a plurality of shield supports described above,, locate sound wave along the such information in the propagation position of described longwell so that also can obtain signal detection by all sound transducers.From the voice signal that is connected in the sound transducer on described top cover and the sliding part, also can obtain acoustic wave source is information such in top board or in diapire by assessment.
According to a further aspect in the invention, also can realize sound measurement by sound transducer being inserted in the boring in the rock.The method of this acoustic measurement is suitable for not using at the place, measuring position the situation of shield support.
Claims (9)
1. shield support that is used for underground mining, this shield support has sliding part (10) and top cover (12), between described sliding part and top cover, arranges to it is characterized in that at least one push rod (14),
At least one sound transducer (16,18) is connected on top cover (12) and/or the sliding part (10).
2. shield support according to claim 1 is characterized in that, described sound transducer (16,18) is a piezoelectric transducer.
3. shield support according to claim 1 and 2 is characterized in that, described sound transducer (16) is arranged in the bottom of described top cover (12).
4. according to the described shield support of aforementioned at least one claim, it is characterized in that described sound transducer (18) is arranged in the top of described sliding part (10).
5. according to the described shield support of aforementioned at least one claim, it is characterized in that described sound transducer (16,18) is arranged near the described push rod (14).
6. according to the described shield support of aforementioned at least one claim, it is characterized in that a sound transducer (16) is connected on the described top cover (12), a sound transducer (18) is connected on the described sliding part (10).
7. according to the described shield support of aforementioned at least one claim, it is characterized in that described sound transducer (16,18) is fitted on the surface of described shield support.
8. a utilization is according to the method at least one shield support identification barrier layer of aforementioned at least one claim, wherein determine that by the voice signal that described sound transducer measures the digging instrument is to dig fully in the coal, still partially or completely digs in the rock by assessment.
9. the method for the sound wave of propagating is measured in a utilization in rock according at least one shield support of aforementioned at least one claim, wherein at least one sound transducer is connected on the top cover, a sound transducer is connected on the sliding part, and determines the position of the acoustic wave source that measured by the sensor signal of assessing described two sensors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610041572 DE102006041572B4 (en) | 2006-09-05 | 2006-09-05 | Removal plate for underground mining |
| DE102006041572.8 | 2006-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101139932A true CN101139932A (en) | 2008-03-12 |
| CN101139932B CN101139932B (en) | 2011-07-06 |
Family
ID=39078897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101457940A Active CN101139932B (en) | 2006-09-05 | 2007-09-05 | Construction shield for underground mining |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101139932B (en) |
| DE (1) | DE102006041572B4 (en) |
| RU (1) | RU2366815C2 (en) |
| UA (1) | UA96567C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240039A (en) * | 2015-10-29 | 2016-01-13 | 中国矿业大学 | Float shaking type hydraulic bracket |
| CN110318777B (en) * | 2019-07-16 | 2020-11-10 | 中国葛洲坝集团基础工程有限公司 | Shield negative ring segment dismounting and transporting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3815495A1 (en) * | 1988-05-06 | 1989-11-23 | Hoelter Heinz | Electronic control for underground shield-type support |
| DE10354281B4 (en) * | 2003-11-20 | 2012-10-25 | Marco Systemanalyse Und Entwicklung Gmbh | sensor |
| DE102005005869B4 (en) * | 2005-02-09 | 2007-10-04 | Rag Ag | Method of controlling a mining machine in underground coal industry operations |
-
2006
- 2006-09-05 DE DE200610041572 patent/DE102006041572B4/en not_active Expired - Fee Related
-
2007
- 2007-09-04 UA UAA200709913A patent/UA96567C2/en unknown
- 2007-09-04 RU RU2007133242/03A patent/RU2366815C2/en active
- 2007-09-05 CN CN2007101457940A patent/CN101139932B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2007133242A (en) | 2009-03-10 |
| CN101139932B (en) | 2011-07-06 |
| UA96567C2 (en) | 2011-11-25 |
| DE102006041572B4 (en) | 2010-01-21 |
| RU2366815C2 (en) | 2009-09-10 |
| DE102006041572A1 (en) | 2008-03-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |