CN110130893A - A kind of force piece active safety system - Google Patents
A kind of force piece active safety system Download PDFInfo
- Publication number
- CN110130893A CN110130893A CN201910414590.5A CN201910414590A CN110130893A CN 110130893 A CN110130893 A CN 110130893A CN 201910414590 A CN201910414590 A CN 201910414590A CN 110130893 A CN110130893 A CN 110130893A
- Authority
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- China
- Prior art keywords
- bracket
- coalcutter
- coal seam
- millimetre
- wave radar
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 15
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims description 2
- 238000005065 mining Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
-
- 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
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a kind of force piece active safety systems, and including the coalcutter and several brackets being located in working face, coalcutter is located at the coal wall side to be exploited in coal seam；Each bracket includes rack body, rack plate, bracket face guard and bracket electricity hydraulic control system, and towards the side horizontal connection rack plate in coal seam, bracket face guard and rack plate connect vertically close to the one end in coal seam on the top of rack body；Bracket electricity hydraulic control system is connect with rack body, and the coal wall side to be exploited for controlling bracket towards coal seam is mobile；The side in rack body towards coal seam is equipped with the first millimetre-wave radar connecting with the electro-hydraulic control system signal of bracket, detects position feature value of the personnel in the first millimetre-wave radar detection range relative to the bracket.The present invention realizes that bracket surrounding people detects relative to the high-precision of the speed of bracket, distance and angle, effectively increases the safety of the personnel in working face by installing millimetre-wave radar in bracket.
Description
Technical field
The present invention relates to technical field of coal exploitation, more particularly to a kind of force piece active safety system.
Background technique
Working face refers to the workplace of coalcutter in field of coal mining, bracket and scrapper conveyor.It coalcutter, bracket and scrapes
These three machines of trigger realize the mechanical mining of coal in the collaborative work of working face.
Automatically working face is the control that automated control technology is applied to coalcutter, bracket and scrapper conveyor, final real
The working face automated mining of existing coal.Automatically working face is that the working face WeiLai Technology that field of coal mining is unanimously approved is drilled
Into direction.In automatically working face, it mainly includes oneself of bracket that the automation control of bracket, which needs the technical point paid close attention to,
Dynamic pushing and sliding move the problem of secure context that frame and bracket are faced during automatic pushing and sliding move frame, mainly include the following:
(1) in working face personnel activity interval be usually in bracket, bracket automatic pushing and sliding move frame during it should be ensured that
Working face personnel move the associated supports holding safe distance of frame with pushing and sliding are related to, in order to avoid generation safety accident；
(2) cutting drum of coalcutter is during coal cutting, and bracket should be able to real-time detection coalcutter cutting drum and current
The distance of associated supports top plate, when the distance value is lower than threshold values, the mining height of the corresponding cutting drum of adjustment coalcutter, to ensure
Coalcutter cutting drum and the top backplate of associated supports keep safe distance.
Working face associated supports need to confirm personnel and are related to the branch of automatic pushing and sliding shifting frame during automatic pushing and sliding move frame
Frame keeps safe distance, and existing technical solution is positioned by FRID radio frequency to detect the position of working face personnel and associated supports
Relationship is set, the final positional relationship for confirming working face personnel with the bracket for being related to pushing and sliding shifting frame, this detection method is main to be lacked
Falling into is:
(1) each personnel must wear FRID RF tag, position positioning is just able to achieve, if someone does not wear FRID and penetrates
Frequency marking label, then this person is can not to be detected in working face with the positional relationship of bracket；
(2) the positional relationship detection accuracy error of FRID radio frequency detection and localization personnel and associated supports has reached meter level, Mei Fashi
The existing other high precision position detection of Centimeter Level；
(3) working face less radio-frequency positioning cannot achieve the movement speed of people Yu working face associated supports, the detection in direction, and this
Two characteristic values are most important for people and the dynamic detection of the positional relationship of working face associated supports；
(4) FRID radiofrequency signal is easy to be influenced by working face harsh environments, the coal bisque of working face, metal object shielding
Etc. will cause radiofrequency signal blind area, eventually leads to personnel and the detection of associated supports positional relationship fails.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of force piece active safety systems, are able to solve existing
The above problem present in technology.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of force piece active is provided
Security system, including the coalcutter and several brackets being located in working face, the coalcutter is located at the coal wall to be exploited in coal seam
Side, cutting drum attach wall the to be exploited arrangement in the coal seam；Each bracket include rack body, rack plate,
Bracket face guard and bracket electricity hydraulic control system, wherein the side level in the top of the rack body towards the coal seam connects
The rack plate is connect, the bracket face guard is connect with the rack plate close to the one end in the coal seam vertically；The branch
Frame electricity hydraulic control system is connect with the rack body, and the coal wall side to be exploited for controlling the bracket towards the coal seam is moved
It is dynamic；The side in the rack body towards the coal seam is equipped with the first millimetre-wave radar, first millimetre-wave radar and institute
The electro-hydraulic control system signal connection of bracket is stated, detects the personnel in the first millimetre-wave radar detection range relative to the bracket
Position feature value.
In a preferred embodiment of the present invention, the active safety system further includes the second millimetre-wave radar, and described
Two millimetre-wave radars are mounted on the bottom surface of the rack plate, are connect with the coalcutter signal, are detected the cutting drum
Position feature value relative to the rack plate.
In a preferred embodiment of the present invention, the personnel positions characteristic value include personnel relative to the bracket away from
From, speed and angle.
In a preferred embodiment of the present invention, position feature value position is the cutting drum and the rack plate
Distance, speed and angle.
It in a preferred embodiment of the present invention, further include the scrapper conveyor in the working face, the coalcutter is ridden
It is located on the scrapper conveyor, and mobile relative to the scrapper conveyor.
In a preferred embodiment of the present invention, the quantity of the cutting drum of each coalcutter is 2, and with described
Left and right distribution centered on coalcutter.
The beneficial effects of the present invention are: a kind of force piece active safety system of the present invention, novel, design is closed
Reason uses millimetre-wave radar detection technique, by installing the first millimetre-wave radar in bracket, realizes bracket surrounding people phase
The speed of bracket, distance and the characteristic value in direction are detected, and the detected value processing result is sent to the electro-hydraulic control of bracket and is
System, bracket electricity hydraulic control system are to move frame according to the automatic pushing and sliding of control associated supports with this result, are effectively increased in working face
Automatic pushing and sliding move the safety of personnel during frame.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of one preferred embodiment of force piece active safety system of the present invention；
Fig. 2 is the structural schematic diagram inside shown force piece towards coal wall side to be exploited；
Fig. 3 is the integral layout schematic diagram of shown force piece active safety system；
Fig. 4 is the work flow diagram of shown first millimetre-wave radar；
Fig. 5 is the work flow diagram of shown second millimetre-wave radar；
The components in the drawings are labeled as follows: 1. brackets, 2. scrapper conveyors, 3. coalcutters, 4. coal seams, 5. first millimetre-wave radars,
6. the second millimetre-wave radar, 7. centralized control centers, 11. rack bodies, 12. rack plates, 13. brackets help backplate, 14. brackets are electro-hydraulic
Control system, 31. cutting drums.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Fig. 1-5 is please referred to, the embodiment of the present invention includes:
Embodiment 1
Present invention discloses a kind of force piece active safety systems, including the coalcutter 3 in working face, several branch
Frame 1 and scrapper conveyor 2.
Wherein, the coalcutter 3 is located at the coal wall side to be exploited in coal seam 4, and the coalcutter 3 includes two cutting drums
The left and right distribution centered on the coalcutter 3 of 31,2 cutting drums 31, and attach wall the to be exploited arrangement in the coal seam.
The coalcutter 3, which is ridden, to be located on the scrapper conveyor 2, and mobile relative to the scrapper conveyor.Specifically, the coalcutter
On the one hand the scrapper conveyor makees moving back and forth along the scrapper conveyor length direction relatively, on the other hand, when bracket 1 is to the coal
4 side of layer are mobile and when the scrapper conveyor being pushed to move forward, and the coalcutter 3 also follows the scrapper conveyor 2 together to coal seam 4
Side is mobile.
Each bracket 1 includes rack body 11, rack plate 12, bracket face guard 13 and bracket electricity hydraulic control system
14, wherein rack plate 12 described in side horizontal connection of the top of the rack body 11 towards the coal seam 4, the branch
Frame face guard 13 is connect with the rack plate 12 close to the one end in the coal seam 4 vertically；The bracket electricity hydraulic control system 14 with
The rack body 11 connects, and the coal wall side to be exploited for controlling the bracket 1 towards the coal seam 4 is mobile, i.e., the described branch
Frame electricity hydraulic control system 14 controls bracket and completes automatic pushing and sliding shifting frame.
The side in the rack body 11 towards the coal seam 4 is equipped with the first millimetre-wave radar 5, first millimeter wave
Radar 5 is connect with 14 signal of bracket electricity hydraulic control system, detects personnel's phase in 5 detection range of the first millimetre-wave radar
For the position feature value of the bracket 1.Specifically, the personnel in 5 detection range of the first millimetre-wave radar are relative to this
Distance, the position feature value of speed and angle of bracket 1.
Preferably, the active safety system further includes the second millimetre-wave radar 6, and second millimetre-wave radar 6 is installed
It is connect on the bottom surface of the rack plate 12, and with 3 signal of coalcutter, detects the cutting drum 31 relative to described
The position feature value of rack plate 12.The characteristic value be the cutting drum 31 relative to the rack plate 12 distance,
The position feature value of speed and angle.
The operation principle of the present invention is that:
It is related after the automatic pushing and sliding that the associated supports on working face receive the sending of bracket electricity hydraulic control system move the instruction of frame
Bracket can pass through the first millimetre-wave radar 5 for being mounted on this bracket, real-time detection during executing automatic pushing and sliding and moving frame
And judge whether there are personnel in its detection range, and testing staff is special relative to the position of the speed of the bracket, distance, angle
Value indicative, and will test value processing result and be transferred to bracket electricity hydraulic control system, bracket electricity hydraulic control system finally determines whether to continue to hold
The relevant pushing and sliding of row move the work of frame.
Specific workflow are as follows:
First millimetre-wave radar starts and continuously emits the electromagnetic wave of fixed frequency, then receives reflected electromagnetic wave, benefit
With Doppler effect, the first millimetre-wave radar acquires the velocity characteristic value of the object relative to its movement, if this feature value is more than valve
Value can determine that mobile object is behaved, then using Doppler effect real-time monitoring people relative to the first millimetre-wave radar
Distance, speed, the characteristic value of angle, the spy by above-mentioned personnel relative to the distance of the first millimetre-wave radar, speed, angle
The comparing result of value indicative and threshold value determines that the automatic pushing and sliding of bracket electricity hydraulic control system move starting or stoping for frame, is specifically shown in attached drawing 4.
During coalcutter coal cutting, the second millimetre-wave radar on force piece can detect currently associated in real time
The position feature value of speed, distance and angle between the rack plate of bracket and the cutting drum of coalcutter, and by these positions
The comparing result for setting characteristic value and threshold values is transferred to coalcutter 3, and coalcutter 3 adjusts it according to comparing result and corresponds to cutting drum
Mining height.Detailed process is as follows:
Second millimetre-wave radar starts and continuously emits fixed frequency electromagnetic wave, then receives reflected electromagnetic wave, and adopt
Collect the reflected intensity of reverberation, if the reflected intensity is more than threshold value, confirms that the reverberation is coalcutter cutting drum, the second milli
Metre wave radar utilizes distance, the speed, angle of Doppler effect real-time monitoring coalcutter cutting drum the second millimetre-wave radar of distance
The characteristic value of degree, by judging whether distance feature value is lower than threshold value, so that it is determined that coalcutter corresponds to the mining height tune of cutting drum
Save flag bit whether set, be specifically shown in attached drawing 5.
A kind of force piece active safety system of the present invention is realized a kind of based on spy with millimetre-wave radar detection technique
The force piece active safety system of value indicative detection, has the advantages that
1, by support perimeter personnel relative to the speed of this bracket, distance and angle characteristic value detect, realize personnel with
The high-precision of working face associated supports positional relationship detects, to improve bracket during automatic pushing and sliding move frame in working face
The safety of personnel；
2, the characteristic value by coalcutter cutting drum relative to the speed of force piece top plate, distance and angle detects, from
And coalcutter cutting drum is avoided to cut to bracket face guard or top backplate.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and comes for those skilled in the art
It says, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any modification, equivalent
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of force piece active safety system, which is characterized in that including the coalcutter being located in working face and several
Bracket, the coalcutter are located at the coal wall side to be exploited in coal seam, and cutting drum attaches wall the to be exploited arrangement in the coal seam；
Each bracket includes rack body, rack plate, bracket face guard and bracket electricity hydraulic control system, wherein the bracket
Rack plate described in side horizontal connection of the top of ontology towards the coal seam, the bracket face guard and the rack plate
One end close to the coal seam connects vertically；The bracket electricity hydraulic control system is connect with the rack body, and controls the branch
The coal wall side to be exploited in frame towards the coal seam is mobile；The side in the rack body towards the coal seam is equipped with the first milli
Metre wave radar, first millimetre-wave radar are connect with the electro-hydraulic control system signal of the bracket, detect the first millimeter wave thunder
Position feature value up to the personnel in detection range relative to the bracket.
2. force piece active safety system according to claim 1, which is characterized in that the active safety system is also
Including the second millimetre-wave radar, second millimetre-wave radar is mounted on the bottom surface of the rack plate, with the coalcutter
Signal connection, detects position feature value of the cutting drum relative to the rack plate.
3. force piece active safety system according to claim 1, which is characterized in that the personnel positions characteristic value
Distance, speed and angle including personnel relative to the bracket.
4. force piece active safety system according to claim 2, which is characterized in that position feature value position is
The cutting drum is at a distance from the rack plate, speed and angle.
5. force piece active safety system according to claim 1, which is characterized in that further include being located at the work
Scrapper conveyor in face, the coalcutter, which is ridden, to be located on the scrapper conveyor, and mobile relative to the scrapper conveyor.
6. force piece active safety system according to claim 1 or 2, which is characterized in that each coalcutter
Cutting drum quantity be 2, and centered on the coalcutter left and right distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414590.5A CN110130893A (en) | 2019-05-17 | 2019-05-17 | A kind of force piece active safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414590.5A CN110130893A (en) | 2019-05-17 | 2019-05-17 | A kind of force piece active safety system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130893A true CN110130893A (en) | 2019-08-16 |
Family
ID=67575044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910414590.5A Pending CN110130893A (en) | 2019-05-17 | 2019-05-17 | A kind of force piece active safety system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130893A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042022A (en) * | 1979-02-13 | 1980-09-17 | Coal Industry Patents Ltd | Method of and apparatus for surveying a mining installation |
| CN102031986A (en) * | 2009-10-02 | 2011-04-27 | 玛珂系统分析和开发有限公司 | Method for controlling advancing mechanism |
| CN103306700A (en) * | 2013-05-15 | 2013-09-18 | 太原理工大学 | Control method of unattended operation for coal mine comprehensive mechanized mining face |
| CN205779021U (en) * | 2016-05-25 | 2016-12-07 | 天津华宁电子有限公司 | Detecting system for mine hydraulic bracket |
| CN106869929A (en) * | 2017-01-20 | 2017-06-20 | 中国矿业大学 | Hydraulic support based on image interferes protection system and method with winning machine cutting part |
-
2019
- 2019-05-17 CN CN201910414590.5A patent/CN110130893A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042022A (en) * | 1979-02-13 | 1980-09-17 | Coal Industry Patents Ltd | Method of and apparatus for surveying a mining installation |
| CN102031986A (en) * | 2009-10-02 | 2011-04-27 | 玛珂系统分析和开发有限公司 | Method for controlling advancing mechanism |
| CN103306700A (en) * | 2013-05-15 | 2013-09-18 | 太原理工大学 | Control method of unattended operation for coal mine comprehensive mechanized mining face |
| CN205779021U (en) * | 2016-05-25 | 2016-12-07 | 天津华宁电子有限公司 | Detecting system for mine hydraulic bracket |
| CN106869929A (en) * | 2017-01-20 | 2017-06-20 | 中国矿业大学 | Hydraulic support based on image interferes protection system and method with winning machine cutting part |
Non-Patent Citations (1)
| Title |
|---|
| 王虹: "综采工作面智能化关键技术研究现状与发展方向", 《煤炭科学技术》 * |
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Application publication date: 20190816 |