CN108166976B - Hierarchical propulsion type high-efficiency coal cutter cutting device and method - Google Patents
Hierarchical propulsion type high-efficiency coal cutter cutting device and method Download PDFInfo
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- CN108166976B CN108166976B CN201810165293.7A CN201810165293A CN108166976B CN 108166976 B CN108166976 B CN 108166976B CN 201810165293 A CN201810165293 A CN 201810165293A CN 108166976 B CN108166976 B CN 108166976B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 61
- 239000003245 coal Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 9
- 238000005065 mining Methods 0.000 claims abstract description 14
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000036346 tooth eruption Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- E21C25/10—Rods; Drums
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- 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
- E21C31/08—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines
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- 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
- E21C35/18—Mining picks; Holders therefor
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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)
- Harvesting Machines For Root Crops (AREA)
- Crushing And Grinding (AREA)
Abstract
The device comprises a machine body, a driving mechanism, a rocker arm, a gesture adjusting hydraulic cylinder, a gearbox, a leveling hydraulic cylinder and three rollers, wherein a plurality of cutting teeth are uniformly distributed on the circumference of the rollers, and the cutting teeth of the three rollers are sequentially decreased in size and axially distributed in a gradient manner; the driving mechanism is hinged with the machine body, the rocker arm is connected with the driving mechanism, the gesture-adjusting hydraulic cylinder is connected between the machine body and the driving mechanism, the gearbox is hinged with the rocker arm, the leveling hydraulic cylinder is connected between the gearbox and the rocker arm, the gearbox is provided with three power output shafts in total, the three power output shafts are sequentially low-speed, medium-speed and high-speed power output shafts, and the three rollers are respectively fixedly arranged on the three power output shafts. The three rollers are adopted to realize gradual propulsion at different cutting picks and rotating speeds, so that cutting resistance, cutting pick loss and cutting energy consumption are reduced; the size of the cut coal blocks is uniform, the phenomena of large coal block collapse, side caving and chain clamping are avoided, the subsequent coal block crushing workload is reduced, and the coal mining efficiency and the transportation efficiency are improved.
Description
Technical Field
The invention belongs to the technical field of coal mining, and particularly relates to a hierarchical push type high-efficiency coal cutter cutting device and method.
Background
For traditional coal mining machine, its cylinder is similar to a cylinder, and in the cutting process, because the cutting depth is great, the cutting cambered surface of cylinder can contact with the coal wall interface of whole cutting depth, leads to pick and cutting motor to bear huge load to cause the acceleration wearing and tearing of pick and the huge energy consumption of cutting motor, and then increased the economic investment in the exploitation process.
Furthermore, when the traditional shearer drum is used for cutting, the cutting depth is large, and huge vibration is generated in the collision process of the cutting pick and a coal wall interface, so that phenomena such as caving of large coal blocks and even caving are easily caused, the subsequent coal block breaking workload is increased, and even the chain clamping working condition of the scraper conveyor is caused, so that the coal mining efficiency and the coal transportation efficiency are greatly reduced.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a grading propulsion type high-efficiency coal cutter cutting device and a grading propulsion type high-efficiency coal cutter cutting method, which abandon the traditional single-body type roller design scheme, adopts a brand new split-type roller design scheme, consists of three independent rollers which are distributed in a gradient way, adopts different picks and different rotating speeds and propels step by step, can greatly reduce cutting resistance, pick loss and cutting motor energy consumption, and saves production cost; the cut coal blocks are uniform in size, so that the phenomena of caving of large coal blocks, even caving and the like can be effectively avoided, the crushing workload of the subsequent coal blocks is effectively reduced, the working conditions of chain clamping of a scraper conveyor and the like caused by the large coal blocks can be prevented, and the mining efficiency and the transportation efficiency of coal are effectively improved.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a hierarchical push type high-efficiency coal cutter cutting device comprises a machine body, a driving mechanism, a rocker arm, a posture adjusting hydraulic cylinder, a gearbox, a leveling hydraulic cylinder, a first roller, a second roller and a third roller; the driving mechanism is hinged with the machine body, the rocker arm is fixedly connected with the driving mechanism, one end of the gesture adjusting hydraulic cylinder is hinged with the machine body, the other end of the gesture adjusting hydraulic cylinder is hinged with the driving mechanism, and the height of the rocker arm is adjusted through the gesture adjusting hydraulic cylinder; the gear box is hinged with the rocker arm, one end of the leveling hydraulic cylinder is hinged on the rocker arm, the other end of the leveling hydraulic cylinder is hinged on the gear box, and an included angle between the gear box and the rocker arm is adjusted through the leveling hydraulic cylinder; the gearbox is provided with three power output shafts in total, namely a low-speed power output shaft, a medium-speed power output shaft and a high-speed power output shaft in sequence; the first roller is fixedly arranged on the low-speed power output shaft, and a plurality of first picks are uniformly distributed on the circumference of the first roller; the second roller is fixedly arranged on the medium-speed power output shaft, and a plurality of second cutting picks are uniformly distributed on the circumference of the second roller; the third roller is fixedly arranged on the high-speed power output shaft, and a plurality of third cutting picks are uniformly distributed on the circumference of the third roller; the sizes of the first cutting pick, the second cutting pick and the third cutting pick are sequentially decreased; the first roller, the second roller and the third roller are distributed in a gradient manner in the axial direction.
A cutting motor is arranged in a shell of the driving mechanism, a first speed increasing gear set is arranged in a shell of the rocker arm, and a second speed increasing gear set and a third speed increasing gear set are arranged in the gearbox; the motor shaft of the cutting motor is fixedly connected with the low-speed end gear shaft of the first speed increasing gear set, the low-speed power output shaft of the gearbox is used as the high-speed end gear shaft of the first speed increasing gear set, and the low-speed power output shaft is also used as the low-speed end gear shaft of the second speed increasing gear set; the medium-speed power output shaft of the gearbox is used as a high-speed end gear shaft of the second speed increasing gear set, and is also used as a low-speed end gear shaft of the third speed increasing gear set; the high-speed power output shaft of the gearbox serves as a high-speed end gear shaft of the third speed increasing gear set.
The high-efficiency coal mining method adopts the grading propulsion type high-efficiency coal mining machine cutting device and comprises the following steps:
step one: starting a posture-adjusting hydraulic cylinder, and synchronously adjusting the heights of a rocker arm, a gearbox, a first roller, a second roller and a third roller;
step two: starting a leveling hydraulic cylinder, and adjusting an included angle between the rocker arm and the gearbox until the axes of the first roller, the second roller and the third roller are positioned on the same horizontal plane;
step three: starting a cutting motor, sequentially transmitting power to a first roller, a second roller and a third roller through a first speed increasing gear set, a second speed increasing gear set and a third speed increasing gear set, wherein the third roller is positioned at the forefront and has the maximum rotating speed, the second roller is positioned at the middle part and has the rotating speed smaller than that of the third roller, and the first roller is positioned at the rearmost and has the rotating speed smaller than that of the second roller;
step four: the machine body is controlled to advance, so that the third roller cuts the outer side coal wall firstly, and the mining resistance of the second roller when cutting the middle coal wall is reduced; along with the advancing of the machine body, the second roller cuts the middle coal wall so as to reduce the exploitation resistance when the first roller cuts the inner side coal wall; and continuously controlling the machine body to advance, so that the first roller finally cuts the inner side coal wall until the first roller, the second roller and the third roller cut the coal wall simultaneously.
The invention has the beneficial effects that:
compared with the prior art, the invention abandons the traditional single-body type roller design scheme, adopts a brand new split type roller design scheme, is composed of three independent rollers which are distributed in a gradient way, and the three independent rollers adopt different picks and different rotating speeds and are propelled step by step, so that the cutting resistance, pick loss and cutting energy consumption can be greatly reduced, and the production cost is saved; the cut coal blocks are uniform in size, so that the phenomena of caving of large coal blocks, even caving and the like can be effectively avoided, the crushing workload of the subsequent coal blocks is effectively reduced, the working conditions of chain clamping of a scraper conveyor and the like caused by the large coal blocks can be prevented, and the mining efficiency and the transportation efficiency of coal are effectively improved.
Drawings
FIG. 1 is a schematic structural view of a hierarchical push-type high-efficiency shearer cutting device of the present invention;
FIG. 2 is a top view of a hierarchical push-type high efficiency shearer cutting device (fuselage not shown) of the present invention;
in the figure, 1-fuselage, 2-actuating mechanism, 3-rocking arm, 4-attitude-adjusting hydraulic cylinder, 5-gearbox, 6-leveling hydraulic cylinder, 7-first cylinder, 8-second cylinder, 9-third cylinder, 10-low-speed power output shaft, 11-medium-speed power output shaft, 12-high-speed power output shaft, 13-first cutting pick, 14-second cutting pick, 15-third cutting pick, 16-cutting motor, 17-first speed increasing gear set, 18-second speed increasing gear set, 19-third speed increasing gear set and 20-mining area coal seam.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1-2, a hierarchical push type high-efficiency coal cutter cutting device comprises a machine body 1, a driving mechanism 2, a rocker arm 3, a posture adjusting hydraulic cylinder 4, a gearbox 5, a leveling hydraulic cylinder 6, a first roller 7, a second roller 8 and a third roller 9; the driving mechanism 2 is hinged with the machine body 1, the rocker arm 3 is fixedly connected with the driving mechanism 2, one end of the gesture adjusting hydraulic cylinder 4 is hinged on the machine body 1, the other end of the gesture adjusting hydraulic cylinder 4 is hinged on the driving mechanism 2, and the height of the rocker arm 3 is adjusted through the gesture adjusting hydraulic cylinder 4; the gearbox 5 is hinged with the rocker arm 3, one end of the leveling hydraulic cylinder 6 is hinged with the rocker arm 3, the other end of the leveling hydraulic cylinder 6 is hinged with the gearbox 5, and an included angle between the gearbox 5 and the rocker arm 3 is adjusted through the leveling hydraulic cylinder 6; the gearbox 5 is provided with three power output shafts in total, namely a low-speed power output shaft 10, a medium-speed power output shaft 11 and a high-speed power output shaft 12 in sequence; the first roller 7 is fixedly arranged on the low-speed power output shaft 10, and a plurality of first cutting picks 13 are uniformly distributed on the circumference of the first roller 7; the second roller 8 is fixedly arranged on the medium-speed power output shaft 11, and a plurality of second picks 14 are uniformly distributed on the circumference of the second roller 8; the third roller 9 is fixedly arranged on the high-speed power output shaft 12, and a plurality of third truncated teeth 15 are uniformly distributed on the circumference of the third roller 9; the sizes of the first cutting pick 13, the second cutting pick 14 and the third cutting pick 15 are sequentially decreased; the first roller 7, the second roller 8 and the third roller 9 are distributed in a gradient manner in the axial direction.
A cutting motor 16 is arranged in the shell of the driving mechanism 2, a first speed increasing gear set 17 is arranged in the shell of the rocker arm 3, and a second speed increasing gear set 18 and a third speed increasing gear set 19 are arranged in the gearbox 5; the motor shaft of the cutting motor 16 is fixedly connected with the low-speed end gear shaft of the first speed increasing gear set 17, the low-speed power output shaft 10 of the gearbox 5 is used as the high-speed end gear shaft of the first speed increasing gear set 17, and the low-speed power output shaft 10 is also used as the low-speed end gear shaft of the second speed increasing gear set 18; the medium-speed power output shaft 11 of the gearbox 5 serves as a high-speed end gear shaft of the second speed increasing gear set 18, and the medium-speed power output shaft 11 also serves as a low-speed end gear shaft of the third speed increasing gear set 19; the high-speed power output shaft 12 of the gearbox 5 serves as a high-speed end gear shaft of a third speed increasing gear set 19.
In this embodiment, the first speed-increasing gear set 17 includes six transmission gears, including a high-speed end gear and a low-speed end gear, and four transition gears are smoothly disposed between the high-speed end gear and the low-speed end gear, and the six transmission gears are sequentially engaged for transmitting the power of the cutting motor 16 to the low-speed power output shaft 10.
In this embodiment, the second speed increasing gear set 18 includes three transmission gears, including a high-speed end gear and a low-speed end gear, and a transition gear is disposed between the high-speed end gear and the low-speed end gear, the transition gear having the same number of teeth as the low-speed end gear, and the three transmission gears are sequentially engaged for transmitting the power of the low-speed power output shaft 10 to the medium-speed power output shaft 11.
In this embodiment, the third speed increasing gear set 19 includes three transmission gears, including a high-speed end gear and a low-speed end gear, and a transition gear is provided between the high-speed end gear and the low-speed end gear, the number of teeth of the transition gear is smaller than that of the low-speed end gear, and the three transmission gears are sequentially engaged for transmitting the power of the medium-speed power output shaft 11 to the high-speed power output shaft 12.
The high-efficiency coal mining method adopts the grading propulsion type high-efficiency coal mining machine cutting device and comprises the following steps:
step one: starting the attitude-adjusting hydraulic cylinder 4, and synchronously adjusting the heights of the rocker arm 3, the gearbox 5, the first roller 7, the second roller 8 and the third roller 9;
step two: starting a leveling hydraulic cylinder 6, and adjusting an included angle between the rocker arm 3 and the gearbox 5 until the axes of the first roller 7, the second roller 8 and the third roller 9 are positioned on the same horizontal plane;
step three: starting a cutting motor 16, and transmitting power to a first roller 7, a second roller 8 and a third roller 9 sequentially through a first speed increasing gear set 17, a second speed increasing gear set 18 and a third speed increasing gear set 19, wherein the third roller 9 is positioned at the forefront and has the maximum rotating speed, the second roller 8 is positioned at the middle and has the rotating speed smaller than the third roller 9, and the first roller 7 is positioned at the rearmost and has the rotating speed smaller than the second roller 8;
step four: the machine body 1 is controlled to advance, so that the third roller 9 cuts the outer side coal wall firstly, and the exploitation resistance of the second roller 8 when cutting the middle coal wall is reduced; as the machine body 1 advances, the second roller 8 cuts the middle coal wall so as to reduce the exploitation resistance when the first roller 7 cuts the inner coal wall; the forward movement of the machine body 1 is continuously controlled, so that the first roller 7 finally cuts the inner side coal wall until the first roller 7, the second roller 8 and the third roller 9 simultaneously cut the coal wall.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (2)
1. A hierarchical push type high-efficient coal-winning machine cutting device which characterized in that: the device comprises a machine body, a driving mechanism, a rocker arm, a posture-adjusting hydraulic cylinder, a gearbox, a leveling hydraulic cylinder, a first roller, a second roller and a third roller; the driving mechanism is hinged with the machine body, the rocker arm is fixedly connected with the driving mechanism, one end of the gesture adjusting hydraulic cylinder is hinged with the machine body, the other end of the gesture adjusting hydraulic cylinder is hinged with the driving mechanism, and the height of the rocker arm is adjusted through the gesture adjusting hydraulic cylinder; the gear box is hinged with the rocker arm, one end of the leveling hydraulic cylinder is hinged on the rocker arm, the other end of the leveling hydraulic cylinder is hinged on the gear box, and an included angle between the gear box and the rocker arm is adjusted through the leveling hydraulic cylinder; the gearbox is provided with three power output shafts in total, namely a low-speed power output shaft, a medium-speed power output shaft and a high-speed power output shaft in sequence; the first roller is fixedly arranged on the low-speed power output shaft, and a plurality of first picks are uniformly distributed on the circumference of the first roller; the second roller is fixedly arranged on the medium-speed power output shaft, and a plurality of second cutting picks are uniformly distributed on the circumference of the second roller; the third roller is fixedly arranged on the high-speed power output shaft, and a plurality of third cutting picks are uniformly distributed on the circumference of the third roller; the sizes of the first cutting pick, the second cutting pick and the third cutting pick are sequentially decreased; the first roller, the second roller and the third roller are distributed in a gradient manner in the axial direction; a cutting motor is arranged in a shell of the driving mechanism, a first speed increasing gear set is arranged in a shell of the rocker arm, and a second speed increasing gear set and a third speed increasing gear set are arranged in the gearbox; the motor shaft of the cutting motor is fixedly connected with the low-speed end gear shaft of the first speed increasing gear set, the low-speed power output shaft of the gearbox is used as the high-speed end gear shaft of the first speed increasing gear set, and the low-speed power output shaft is also used as the low-speed end gear shaft of the second speed increasing gear set; the medium-speed power output shaft of the gearbox is used as a high-speed end gear shaft of the second speed increasing gear set, and is also used as a low-speed end gear shaft of the third speed increasing gear set; the high-speed power output shaft of the gearbox serves as a high-speed end gear shaft of the third speed increasing gear set.
2. A high-efficiency coal mining method adopting the grading propulsion type high-efficiency coal cutter cutting device as claimed in claim 1, which is characterized by comprising the following steps:
step one: starting a posture-adjusting hydraulic cylinder, and synchronously adjusting the heights of a rocker arm, a gearbox, a first roller, a second roller and a third roller;
step two: starting a leveling hydraulic cylinder, and adjusting an included angle between the rocker arm and the gearbox until the axes of the first roller, the second roller and the third roller are positioned on the same horizontal plane;
step three: starting a cutting motor, sequentially transmitting power to a first roller, a second roller and a third roller through a first speed increasing gear set, a second speed increasing gear set and a third speed increasing gear set, wherein the third roller is positioned at the forefront and has the maximum rotating speed, the second roller is positioned at the middle part and has the rotating speed smaller than that of the third roller, and the first roller is positioned at the rearmost and has the rotating speed smaller than that of the second roller;
step four: the machine body is controlled to advance, so that the third roller cuts the outer side coal wall firstly, and the mining resistance of the second roller when cutting the middle coal wall is reduced; along with the advancing of the machine body, the second roller cuts the middle coal wall so as to reduce the exploitation resistance when the first roller cuts the inner side coal wall; and continuously controlling the machine body to advance, so that the first roller finally cuts the inner side coal wall until the first roller, the second roller and the third roller cut the coal wall simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810165293.7A CN108166976B (en) | 2018-02-28 | 2018-02-28 | Hierarchical propulsion type high-efficiency coal cutter cutting device and method |
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| CN201810165293.7A CN108166976B (en) | 2018-02-28 | 2018-02-28 | Hierarchical propulsion type high-efficiency coal cutter cutting device and method |
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| CN108166976A CN108166976A (en) | 2018-06-15 |
| CN108166976B true CN108166976B (en) | 2023-10-27 |
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| CN109139001A (en) * | 2018-10-31 | 2019-01-04 | 攀枝花学院 | Double-ended shearer for large-mining-height working surface |
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| CN110905503A (en) * | 2019-11-04 | 2020-03-24 | 天地科技股份有限公司 | Rocker arm cutting device, tunneling and anchoring machine and rocker arm cutting method |
| CN111852469A (en) * | 2020-08-01 | 2020-10-30 | 袁和樑 | Coal mining machine for coal mining |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1229964A (en) * | 1967-11-22 | 1971-04-28 | ||
| GB8701008D0 (en) * | 1986-01-20 | 1987-02-18 | Eickhoff Geb | Mining process |
| SU1312165A1 (en) * | 1985-12-03 | 1987-05-23 | Тульский Политехнический Институт | Excavating cutter-loader |
| US5163738A (en) * | 1990-07-31 | 1992-11-17 | Linsingen Heintzmann Von | Apparatus for mining a seam, in particular of coal |
| US6416134B1 (en) * | 2000-09-14 | 2002-07-09 | Brydet Development Corp. | Underground auger system |
| CN101418689A (en) * | 2008-11-07 | 2009-04-29 | 中国矿业大学 | High mining height workface stepped coal cutting process |
| CN102425413A (en) * | 2011-12-07 | 2012-04-25 | 天地上海采掘装备科技有限公司 | Coal winning machine |
| CN102606154A (en) * | 2012-04-06 | 2012-07-25 | 中铁隧道装备制造有限公司 | Coal roadway tunneling machine with double round cutter heads |
| CN203531899U (en) * | 2013-06-24 | 2014-04-09 | 刘素华 | Step-tooth reciprocating impacting excavator |
| CN203905943U (en) * | 2013-05-10 | 2014-10-29 | 刘素华 | Reciprocating impact mining machine with rotary rocker arm |
| CN104594894A (en) * | 2014-12-30 | 2015-05-06 | 江苏中机矿山设备有限公司 | Bottom-clearing drum shearer |
| CN106522939A (en) * | 2016-12-28 | 2017-03-22 | 中国矿业大学 | Large-mining-height multi-roller coal cutter adopting layered mining |
| CN106761751A (en) * | 2016-12-28 | 2017-05-31 | 中国矿业大学 | A kind of multiple degrees of freedom Rocker coal mining machine and its method |
| CN106869924A (en) * | 2017-05-02 | 2017-06-20 | 辽宁工程技术大学 | A kind of coal mining machine roller of low energy consumption abnormity pick |
| CN207960608U (en) * | 2018-02-28 | 2018-10-12 | 桂林电子科技大学 | A kind of pusher efficient cutting device of coal mining machine of classification |
-
2018
- 2018-02-28 CN CN201810165293.7A patent/CN108166976B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1229964A (en) * | 1967-11-22 | 1971-04-28 | ||
| SU1312165A1 (en) * | 1985-12-03 | 1987-05-23 | Тульский Политехнический Институт | Excavating cutter-loader |
| GB8701008D0 (en) * | 1986-01-20 | 1987-02-18 | Eickhoff Geb | Mining process |
| US5163738A (en) * | 1990-07-31 | 1992-11-17 | Linsingen Heintzmann Von | Apparatus for mining a seam, in particular of coal |
| US6416134B1 (en) * | 2000-09-14 | 2002-07-09 | Brydet Development Corp. | Underground auger system |
| CN101418689A (en) * | 2008-11-07 | 2009-04-29 | 中国矿业大学 | High mining height workface stepped coal cutting process |
| CN102425413A (en) * | 2011-12-07 | 2012-04-25 | 天地上海采掘装备科技有限公司 | Coal winning machine |
| CN102606154A (en) * | 2012-04-06 | 2012-07-25 | 中铁隧道装备制造有限公司 | Coal roadway tunneling machine with double round cutter heads |
| CN203905943U (en) * | 2013-05-10 | 2014-10-29 | 刘素华 | Reciprocating impact mining machine with rotary rocker arm |
| CN203531899U (en) * | 2013-06-24 | 2014-04-09 | 刘素华 | Step-tooth reciprocating impacting excavator |
| CN104594894A (en) * | 2014-12-30 | 2015-05-06 | 江苏中机矿山设备有限公司 | Bottom-clearing drum shearer |
| CN106522939A (en) * | 2016-12-28 | 2017-03-22 | 中国矿业大学 | Large-mining-height multi-roller coal cutter adopting layered mining |
| CN106761751A (en) * | 2016-12-28 | 2017-05-31 | 中国矿业大学 | A kind of multiple degrees of freedom Rocker coal mining machine and its method |
| CN106869924A (en) * | 2017-05-02 | 2017-06-20 | 辽宁工程技术大学 | A kind of coal mining machine roller of low energy consumption abnormity pick |
| CN207960608U (en) * | 2018-02-28 | 2018-10-12 | 桂林电子科技大学 | A kind of pusher efficient cutting device of coal mining machine of classification |
Non-Patent Citations (1)
| Title |
|---|
| 刘刚、东兆星.井巷工程.中国矿业大学出版社,2016,(第1版),第217页. * |
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