CN109611092A - A kind of mining full height coalcutter and coal-mining method - Google Patents
A kind of mining full height coalcutter and coal-mining method Download PDFInfo
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- CN109611092A CN109611092A CN201910014608.2A CN201910014608A CN109611092A CN 109611092 A CN109611092 A CN 109611092A CN 201910014608 A CN201910014608 A CN 201910014608A CN 109611092 A CN109611092 A CN 109611092A
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- 238000005065 mining Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 150
- 239000003245 coal Substances 0.000 claims abstract description 106
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004064 recycling Methods 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012407 engineering method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003325 tomography Methods 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
- E21C25/52—Machines incorporating two or more of the slitting means according to groups E21C25/02, E21C25/06, E21C25/16, E21C25/20 and E21C25/22
-
- 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
- E21C25/68—Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/10—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for slewing parts of the machines
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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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of mining full height coalcutter and coal-mining methods, belong to technical field of coal exploitation.It includes mainframe, upper cutting means, lower cutting means and turns device, upper cutting means and lower cutting means are mounted on mainframe, by turning device connection between upper cutting means and mainframe, turning device includes power mechanism, the output end of power mechanism is provided with cursor, when coalcutter coal cutting to the end, power mechanism is acted, and drives cursor rotation, and upper cutting means is driven to rotate together therewith；Upper cutting means includes cutterhead, cutting arm, telescoping cylinder, angle modulation oil cylinder and rotating part, and rotating part is connect with cursor, and cutterhead is taper, and its rear end is connect with cutting arm, and the rear end of cutting arm is connect with telescoping cylinder.The present invention can realize the movement of turning of cutting units using turning device, and when return can continue feed coal cutting, avoid sky knife from returning, can be realized round-trip two-ways coal cutting, improve working efficiency and can reduce energy consumption.
Description
Technical field
The invention belongs to technical field of coal exploitation, and in particular to a kind of coal excavation apparatus and coal-mining method.
Background technique
The mechanical mining technique of coal in China is broadly divided into two classes: Sub-Level Caving and mining full height at this stage.Country's mine at present
Well mostly uses 4m or more or medium-thickness seam the recovery method of Sub-Level Caving.For some narrow tomographies or ultrashort work
Make for face, since activity space is limited, existing equipment can not play a role completely, largely cause the wave of resource
Take, and using original big gun adopt method extraction it is inefficient, to people health also have very big damage.Lack a kind of structure at this stage
Compact flexible, production efficiency height and the full-seam mining coal excavation apparatus for adapting to narrow complex environment.Moreover, existing coal mining
Equipment is double-ended shearer, and cutting principle is mainly based upon roller rotation and pick is driven to generate compression shear destruction.Coal is crisp
Property material, tensile strength is only the 1/10 of compression strength, therefore, based on compression shear principle break coal required energy be significantly larger than stretch
Energy needed for destroying.If breaking coal using tensile stress, then the horsepower requirements of coalcutter can be substantially reduced.
Jin Mei group once develops the coalcutter that coal is broken based on tensile stress based on this theory, but its mining way is unidirectionally to cut
Coal, compared with inefficiency for two-ways coal cutting.
In conclusion existing double-ended shearer figure is huge, unwieldy structure is not easily accessible narrow working face and mines；
Coal is broken using compression shear principle, can be obviously increased compared with coal consumption is broken using tensile stress.It is only capable of currently based on the coalcutter that tensile stress breaks coal
Realization one-way coal cutting, sky knife returns after cutting is at the end, and inefficiency all still needs to improve in coal mining efficiency and energy consumption.
Summary of the invention
The purpose of the present invention is to provide a kind of mining full height coalcutter and coal-mining methods, when cutting is at the end, utilize tune
Rotary device can realize the movement of turning of cutting units, and when return can continue feed coal cutting, avoid sky knife from returning, can be realized round-trip
Two-ways coal cutting improves working efficiency and can reduce energy consumption.
One of task of the invention is to provide a kind of mining full height coalcutter, and which employs following technical schemes:
A kind of mining full height coalcutter comprising mainframe, upper cutting means, lower cutting means and device is turned, it is described
Upper cutting means and lower cutting means are mounted on the mainframe, between the upper cutting means and the mainframe
Device connection is turned by described, the device of turning includes power mechanism, and the output end of the power mechanism is set
It is equipped with cursor, when coalcutter coal cutting to the end, the power mechanism movement drives the cursor to rotate, therewith
Cutting means rotates together in drive；
The upper cutting means includes cutterhead, cutting arm, telescoping cylinder, angle modulation oil cylinder and rotating part, the rotation
Portion is connect with the cursor, and the cutterhead is taper, and its rear end is connect with the cutting arm, the cutting arm
Rear end connect with the telescoping cylinder, the telescoping cylinder is located at the base interior that connect with the rotating part, described
Angle modulation oil cylinder is mounted on the two sides for the pedestal connecting with the rotating part, using angle modulation oil cylinder to the cutting up and down of cutterhead and interior
Outer swing angle is adjusted；
The lower cutting means includes the rocker arm connecting with the mainframe, and the rocker arm is connected with driver
Structure, the transmission mechanism are connected with cutting drum, when coal mining, are cut using the pick of the cutting drum to lower part coal body
It cuts, screw type row's coal slot is provided on the cutting drum.
As a preferred solution of the present invention, backplate is installed outside the pedestal of upper cutting means.
As another preferred embodiment of the invention, above-mentioned transmission mechanism includes motor, is engaged and is passed using motor driven
Dynamic gear train, and cutting drum is mounted on the final drive gear shaft of gear train.
Another task of the invention is to provide the coal-mining method of above-mentioned mining full height coalcutter, successively the following steps are included:
A, by taking traditional one knife of coalcutter cuts depth 1200mm as an example, the mining full height coalcutter is from scraper conveyor tail
Working face wall in directly feed coal cutting, the cutterhead carries out cutting to internal 800mm, and external 400mm is logical
It is voluntarily caving in the case where crossing mine pressure, coal self weight and disturbance；
B, it by adjusting the angle modulation oil cylinder, swings cutting arm inside and outside the direction of goaf, while carrying out up and down
Coal is released in swing；And lower cutting part, in conjunction with " cutting bottom to put " principle, cutting bottom plate coal simultaneously recycles coal breakage, leads to
It crosses and cuts bottom plate coal the coal body on top is made to be more easier to be caving；After coalcutter advances, the light-duty high working face hydraulic support at rear
Timely supporting roof of trying to stop people from fighting each other carries out supporting to top plate and coal wall, meanwhile, after coalcutter passes through, sequential advancement drag conveyor
Withstand front coal wall；
C, when coalcutter coal cutting to head, angle modulation oil cylinder is rotated, Triangle Coal is cut；Device operation is turned at this time, is led to
The reversed differential speed rotation of Fuselage connection and rotating part is crossed, upper cutting means turns around, while the telescopic hydraulic cylinder of upper cutting means
Shrink the length for reducing cutting arm；
D, feed starts reversed coal cutting again after upper cutting means is turned, and the cutting drum with cutting means at present reversely revolves
Turn, is smoothly discharged in order to which the coal of recycling can arrange coal slot along screw type；After coalcutter passes through, then timely mobile hydraulic support is simultaneously
Sequence pushing and sliding drag conveyor, a cyclic are completed.
Advantageous effects brought by the present invention are as follows:
Coal is fragile material, and tensile strength is only the 1/10 of compression strength, and the cutting of existing drum shearer is former
Reason is mainly based upon compression shear destruction, much larger than energy needed for tensile failure.If breaking coal using tensile stress, it can substantially reduce and adopt
The horsepower requirements of coal machine.
Therefore, design can substantially reduce required energy consumption based on the novel full-seam mining coalcutter that tensile stress breaks coal, and into
One step compression design volume not only can be adapted for conventional wall exploitation, will also solve the insurmountable money of large-scale fully-mechanized mining equipment
The relatively small number of medium-sized pit mining problem of source relative distribution, reserves, further increases the safety of the middle-size and small-size shaft production in China
Property and high efficiency, improve recovery ratio, realize small block coal resources it is wonderful, carefully adopt, and coal mining during coal cutting-stripping coal-
Energy conservation, the efficient design thought for putting energy consumption minimumization of coal, greatly reduce the wasting of resources, have significant economic benefit and
Social benefit.
The principle of the invention is advanced, breaks coal using tensile stress, effectively reduces resource loss；Cutting arm is mutually tied with cutting drum
It closes, has both the advantage that bottom is put of cutting, cut bottom plate while recycling coal breakage；Hydraulic cylinder and double rocker designs, can be such that cutting arm flexibly revolves
Turn, realize two-ways coal cutting, promotes production efficiency；Compact integral structure, flexibility ratio is high, is applicable not only to conventional wall surface exploitation, more
It can be applied to recycling corner coal and ultrashort face mechanization high-efficiency mining.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the schematic perspective view of coalcutter of the present invention；
Fig. 2 is the schematic side view of coalcutter of the present invention；
Fig. 3 is cutting units schematic perspective view on coalcutter of the present invention；
Fig. 4 is cutting units schematic front view on coalcutter of the present invention；
Fig. 5 is cutting units schematic top plan view on coalcutter of the present invention；
Fig. 6 is cutting units schematic front view under coalcutter of the present invention；
Fig. 7 is cutting units schematic top plan view under coalcutter of the present invention；
Fig. 8 is cutting units cross-sectional side schematic diagram under coalcutter of the present invention；
Fig. 9 is coal winning technology schematic diagram of the present invention；
In figure, 1, mainframe, 2, upper cutting means, 21, rotating part, 22, angle modulation oil cylinder, 23, telescoping cylinder, 24, cutting arm,
25, cutterhead, 26, backplate, 3, lower cutting means, 31, rocker arm, 32, transmission mechanism, 33, cutting drum, 34, pick, 35, row
Coal slot, 4, turn device.
Specific embodiment
The invention proposes a kind of mining full height coalcutter and coal-mining methods, in order to make advantages of the present invention, technical solution more
Add clear, clear, the present invention will be further described combined with specific embodiments below.
Mining full height coalcutter and coal mining engineering method of the invention is theoretical based on " putting in cutting outer " and is proposed, low in guarantee
, it can be achieved that the full-seam mining of 6m in the case where power.It is based on tensile stress and breaks coal, ingenious to utilize mine pressure, can substantially reduce energy
Source consumption, and round-trip two-ways coal cutting, working efficiency are obviously improved, and be cannot be only used for the exploitation of routine work face, are more suitable for recycling
Coal mining and ultrashort working face mining etc. in fault plane under corner coal, complicated geological, environmentally protective, safety height
Effect has great economic and social profit.
In conjunction with shown in Fig. 1 to Fig. 8, mining full height coalcutter of the invention include mainframe 1, be mounted on it is upper on mainframe 1
Cutting means 2 and lower cutting means 3, and device 4 is turned by what upper cutting means 2 was connect with mainframe 1.
Mainframe 1 is the basis of coalcutter, includes external rack and the power device for being mounted on machine frame inside, mainframe
1 bottom design has the walking structure with conveyer cooperation, when coal mining, the walking mechanism of mainframe 1 under power device driving
It can advance along conveyer, and the cutting means being mounted on mainframe 1 is driven to advance simultaneously.
Upper cutting means 2 is mounted on mainframe 1 by turning device 4, and specifically, turning device 4 includes engine
Structure, such as motor can be selected, the output end of power mechanism is provided with cursor.When coalcutter coal cutting to the end, engine
Structure movement drives cursor rotation, since cursor is connect with upper cutting means 2, and then upper cutting means 2 is driven to turn together
Dynamic, cutting means 2 turns around realizations in, to realize two-ways coal cutting, avoids working efficiency caused by the return of sky knife lowly and energy
Consume high problem.
Upper cutting means 2 is the critical component outside putting in realization is cut, including cutterhead 25, cutting arm 24, telescoping cylinder 23, tune
Angle oil cylinder 22 and rotating part 21.
Rotating part 21 is connect with the cursor for turning device 4, to realize the transmitting for turning around to need power.Cutterhead 25 is to coal
Wall is cut, and specifically, cutterhead 25 is designed to tapered, is entered inside coal wall with fast and easy.The rear end of cutterhead 25 with
Cutting arm 24 connects, and the rear end of cutting arm 24 is connect with telescoping cylinder 23, and telescoping cylinder 23 is provided in the pedestal of the connection of rotating part 21
It is internal.When coal mining, by adjusting telescoping cylinder 23 extension elongation, it can be achieved that adjustment to 24 extension elongation of cutting arm, and then adjust
The position that whole cutterhead 25 reaches, to adapt to the working face of different mining heights.Angle modulation oil cylinder 22 is mounted on the two sides of pedestal, utilizes tune
Angle oil cylinder 22 can cutting up and down to cutterhead 25 and inside and outside swing angle be adjusted, so as to disturb external coal seam, make it
It is crisp to being voluntarily caving by pressure under the influence of mine pressure.
Lower cutting means 3, which is put in cut, can play booster action in outer exploitation, including the rocker arm 31 being connect with mainframe 1,
Rocker arm 31 is connected with transmission mechanism, and transmission mechanism is connect with cutting drum 33 again, when coal mining, utilizes the pick 34 of cutting drum 33
Cutting is carried out to lower part coal body, may make top coal body to be easier to be caving by cutting bottom plate coal, while using on cutting drum 33
Screw type row's completion of coal slot 35 coaling recycling.
In the embodiment of the present invention, (side i.e. far from mine coal wall) is equipped with outside the pedestal of upper cutting means 2
Backplate 26 avoids the damage by substance in tunnel to provide protection to upper cutting means 2.The transmission mechanism of lower cutting means 3
32 include motor, using the gear train of motor driven engaged transmission, and cutting drum 33 is mounted on to the final drive of gear train
On gear shaft, to realize the transmitting of cutting power.
As shown in figure 9, mining full height coal mining engineering method of the invention, by taking traditional one knife of coalcutter cuts depth 1200mm as an example.
Coalcutter direct feed coal cutting out of working face wall from scraper conveyor tail first, upper cutting means 2
The 800mm of 25 pairs of inside of cutterhead carries out cutting, and in the case that external 400mm is by mine pressure, coal self weight and disturbance
Voluntarily it is caving.By adjusting the angle modulation oil cylinder 22 of upper cutting means 2, swing cutting arm 23 inside and outside the direction of goaf, together
When swung up and down and released coal.And lower cutting part, in conjunction with " cutting bottom to put " principle, cutting bottom plate coal and to coal breakage into
Row recycling, makes the coal body on top be more easier to be caving by cutting bottom plate coal.After coalcutter advances, the light-duty high working face at rear
Hydraulic support is tried to stop people from fighting each other supporting roof in time, carries out supporting, the generation of the accidents such as prevention roof collapse to top plate and coal wall.Meanwhile
After coalcutter passes through, sequential advancement drag conveyor withstands front coal wall.When coalcutter coal cutting to head, rotation angle modulation oil
Cylinder 22, Triangle Coal is cut.The operation of device 4 is turned at this time, by the reversed differential speed rotation of Fuselage connection and rotating part 21, on
Cutting means 2 turns around, while the telescopic hydraulic cylinder 23 of upper cutting means 2 shrinks the length for reducing cutting arm 24, avoids encountering liquid
Press bracket.Upper cutting means 2 turn after again feed start reversed coal cutting, the cutting drum 33 with cutting means 3 at present is reversed
Rotation, in order to which the coal of recycling can be smoothly discharged along row's coal slot 35.After coalcutter passes through, then timely mobile hydraulic support and suitable
Sequence pushing and sliding drag conveyor, a cyclic are completed.
It uses for reference the prior art and can be realized in the above-mentioned part that do not address.
It should be noted that any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (4)
1. a kind of mining full height coalcutter comprising mainframe, upper cutting means, lower cutting means and turn device, described is upper
Cutting means and lower cutting means are mounted on the mainframe, are led between the upper cutting means and the mainframe
The device of turning is crossed to connect, it is characterised in that:
The device of turning includes power mechanism, and the output end of the power mechanism is provided with cursor, works as coalcutter
When coal cutting to the end, the power mechanism movement drives the cursor to rotate, upper cutting means is driven to turn together therewith
It is dynamic；
The upper cutting means includes cutterhead, cutting arm, telescoping cylinder, angle modulation oil cylinder and rotating part, the rotating part with
The cursor connection, the cutterhead is taper, and its rear end is connect with the cutting arm, after the cutting arm
End is connect with the telescoping cylinder, and the telescoping cylinder is located at the base interior connecting with the rotating part, the angle modulation
Oil cylinder is mounted on the two sides for the pedestal connecting with the rotating part, cutting up and down and inside and outside pendulum using angle modulation oil cylinder to cutterhead
Dynamic angle is adjusted；
The lower cutting means includes the rocker arm connecting with the mainframe, and the rocker arm is connected with transmission mechanism, institute
The transmission mechanism stated is connected with cutting drum, when coal mining, carries out cutting to lower part coal body using the pick of the cutting drum,
Screw type row's coal slot is provided on the cutting drum.
2. a kind of mining full height coalcutter according to claim 1, it is characterised in that: outside the pedestal of the upper cutting means
Portion is equipped with backplate.
3. a kind of mining full height coalcutter according to claim 1, it is characterised in that: the transmission mechanism includes motor,
Using the gear train of motor driven engaged transmission, and cutting drum is mounted on the driving gearshaft of gear train terminal.
4. the coal-mining method of described in any item a kind of mining full height coalcutters according to claim 1~3, which is characterized in that successively
The following steps are included:
A, by taking traditional one knife of coalcutter cuts depth 1200mm as an example, work of the mining full height coalcutter from scraper conveyor tail
Make direct feed coal cutting in the coal wall of face, the cutterhead carries out cutting to internal 800mm, and external 400mm passes through mine
It is voluntarily caving in the case where pressure, coal self weight and disturbance；
B, it by adjusting the angle modulation oil cylinder, swings cutting arm inside and outside the direction of goaf, while being swung up and down
Coal is released；And lower cutting part, in conjunction with " cutting bottom to put " principle, cutting bottom plate coal simultaneously recycles coal breakage, by cutting
Bottom plate coal makes the coal body on top be more easier to be caving；After coalcutter advances, the light-duty high working face hydraulic support at rear is timely
It tries to stop people from fighting each other supporting roof, supporting is carried out to top plate and coal wall, meanwhile, after coalcutter passes through, sequential advancement drag conveyor is withstood
Front coal wall；
C, when coalcutter coal cutting to head, angle modulation oil cylinder is rotated, Triangle Coal is cut；Device operation is turned at this time, passes through machine
The reversed differential speed rotation of body interconnecting piece and rotating part, upper cutting means turn around, while the telescopic hydraulic cylinder of upper cutting means is shunk
Reduce the length of cutting arm；
D, feed starts reversed coal cutting again after upper cutting means is turned, and the cutting drum with cutting means at present reversely rotates,
It is smoothly discharged in order to which the coal of recycling can arrange coal slot along screw type；After coalcutter passes through, then timely mobile hydraulic support and suitable
Sequence pushing and sliding drag conveyor, a cyclic are completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014608.2A CN109611092A (en) | 2019-01-08 | 2019-01-08 | A kind of mining full height coalcutter and coal-mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014608.2A CN109611092A (en) | 2019-01-08 | 2019-01-08 | A kind of mining full height coalcutter and coal-mining method |
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| Publication Number | Publication Date |
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| CN109611092A true CN109611092A (en) | 2019-04-12 |
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ID=66016381
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| CN201910014608.2A Pending CN109611092A (en) | 2019-01-08 | 2019-01-08 | A kind of mining full height coalcutter and coal-mining method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017024A (en) * | 2021-11-02 | 2022-02-08 | 山东科技大学 | Hard ore mining and transporting equipment |
| CN114060033A (en) * | 2021-12-10 | 2022-02-18 | 国家能源投资集团有限责任公司 | Energy-saving loss-reducing coal mining method and coal mining machine |
| CN114109430A (en) * | 2021-11-30 | 2022-03-01 | 中国矿业大学 | Dual-purpose heading machine for cutting and cutting hard rock |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017024A (en) * | 2021-11-02 | 2022-02-08 | 山东科技大学 | Hard ore mining and transporting equipment |
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| CN114060033A (en) * | 2021-12-10 | 2022-02-18 | 国家能源投资集团有限责任公司 | Energy-saving loss-reducing coal mining method and coal mining machine |
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Application publication date: 20190412 |