CN110566199B - Matching device of downward mining type coal mining machine - Google Patents
Matching device of downward mining type coal mining machine Download PDFInfo
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- CN110566199B CN110566199B CN201910883629.8A CN201910883629A CN110566199B CN 110566199 B CN110566199 B CN 110566199B CN 201910883629 A CN201910883629 A CN 201910883629A CN 110566199 B CN110566199 B CN 110566199B
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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
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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
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
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- 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
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- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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- 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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Discharge Of Articles From Conveyors (AREA)
Abstract
The invention relates to the technical field of coal mining equipment, in particular to a downward mining type coal mining machine and a matched device. The coal cutter comprises a coal cutter body, a coal cutter rocker arm and a coal cutter cutting drum, wherein the coal cutter cutting drum is arranged on one side of the coal cutter body. The method can rapidly, safely and efficiently mine the steeply inclined coal seam with the thickness of less than 8 meters and the inclination angle of more than 45 degrees by adopting a downward mining mode along the trend of the coal seam. The high-efficiency, high-yield and safe long-wall mechanized coal mining working face based on the steep coal mining process is formed through the cooperation of the downward mining type coal mining machine, the scraper conveyor and the n-shaped comprehensive coal mining hydraulic support of the steep coal seam, comprehensive mechanized mining of the steep coal seam with the thickness of less than 8 meters and the coal seam dip angle of more than 45 degrees is realized, the coal mining efficiency under the conditions can be greatly improved, the safety is improved, the automatic mining level is improved, the coal mining capacity is improved, and the coal productivity is further improved.
Description
Technical Field
The invention relates to the technical field of coal mining equipment, in particular to a downward mining type coal mining machine and a matched device.
Background
The coal cutter is a main device for mining the coal seam of the coal mining working face of the coal mine, the performance of the coal cutter directly influences the coal mining efficiency and the coal quality, the cutter drums of the coal cutter of the existing coal cutter are uniformly distributed on one side of the coal cutter body, the cutter drums of the coal cutter are used for mining the coal in front of one side of the coal cutter body, and the coal cutter is propelled along the trend of the coal seam in the coal mining process, so that the coal cutter is suitable for the traditional fully-mechanized coal mining working face. In the case of mining a steeply inclined coal seam, particularly a steeply inclined coal seam with a thickness of less than 8m and an inclination angle of more than 45 degrees, the coal seam inclination angle is large, the coal seam is thin, so that the traditional wall type coal mining method cannot be adopted for mining, coal mining machines and other equipment are arranged, and the traditional coal mining machine cannot be used for effective mining, so that the coal mining efficiency is low and even the coal mining cannot be performed. In the steep coal seam mining, a flexible shield support mining method and a small-stage coal seam hydraulic support mining process are adopted for the steep coal seam mining with the coal seam thickness smaller than 8m and the coal seam inclination angle larger than 45 degrees, but various defects exist and are not suitable for the use of the coal seam. The coal seam is not provided with supporting equipment and mining equipment which are reliable and practical, and mining has to be abandoned at present.
Disclosure of Invention
The invention provides a downward mining type coal mining machine and a matched device, which overcome the defects of the prior art, and can effectively solve the problems that the coal mining efficiency is low and even the coal mining efficiency is not available due to the fact that the traditional wall type coal mining method cannot be adopted for mining and the coal mining machine cannot be arranged due to the large dip angle of a coal layer and the thin coal layer of a steeply inclined coal layer with the thickness of less than 8 meters and the dip angle of more than 45 degrees.
The invention also solves the problem that a steeply inclined coal seam three-machine matched unreliable coal mining machine with a coal seam thickness of less than 8 meters and a coal seam inclination angle of more than 45 degrees is matched with a bracket.
One of the technical schemes of the invention is realized by the following measures, and the downward mining type coal mining machine comprises a coal mining machine body, a coal mining machine rocker arm and a coal mining machine cutting drum, wherein the coal mining machine cutting drum is arranged on one side of the coal mining machine body, and the coal mining machine cutting drum is connected with the coal mining machine body through the coal mining machine rocker arm and can swing up and down in a reciprocating manner.
The following are further optimizations and/or improvements to the above-described inventive solution:
And a coal cutter drum is arranged on one side of the coal cutter body close to the top plate.
And a coal cutter drum is arranged on one side of the coal cutter body close to the bottom plate.
And the side, close to the top plate, of the coal cutter body and the side, close to the bottom plate, of the coal cutter body are respectively provided with a coal cutter roller.
The second technical scheme of the invention is realized by the following measures, a matched device comprises a downward mining type coal mining machine, a scraper conveyor and a plurality of steeply inclined coal seam n-shaped fully mechanized coal mining hydraulic supports arranged along a working face, wherein a coal mining machine body of the downward mining type coal mining machine is arranged on the scraper conveyor and can move along the scraper conveyor, the downward mining type coal mining machine and the scraper conveyor are arranged in the steeply inclined coal seam fully mechanized coal mining hydraulic supports, the steeply inclined coal seam fully mechanized coal mining hydraulic supports comprise a roof side supporting beam positioned on a roof side, a goaf shielding beam, a goaf hinging beam, a floor side supporting beam positioned on a floor side, a stand column, the goaf shielding beam and the goaf hinging beam are hinged back to the goaf, the roof side supporting beam, the goaf shielding beam, the goaf hinging beam and the floor side supporting beam are hinged back to form a n-shaped support, at least one row of supports are arranged between the roof side supporting beam and the floor side supporting beam, each row of supports comprises two stand column side supporting beams arranged in parallel, the lower parts of the roof side supporting beams are respectively provided with telescopic legs for supporting the support lifting, and the two adjacent side supporting beams of the two inclined coal seam side supporting beams are respectively connected with the top plate side supporting beams through the left-side hydraulic supports and the top plate side supporting beams are respectively arranged on the left side and the left side supporting beam and the right side supporting beam is connected with the top plate supporting beam.
According to the invention, by matching the downward mining type coal mining machine, the scraper conveyor and the plurality of steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports arranged along the working face, an efficient, high-yield and safe long-wall mechanized coal mining working face is formed on the basis of the steeply inclined coal seam mining process, comprehensive mechanized mining of steeply inclined coal seams with the thickness of less than 8 meters and the coal seam inclination angle of more than 45 degrees is realized, the coal mining efficiency under the conditions can be greatly improved, the safety is improved, the automatic mining level is improved, the coal mining capacity is improved, the coal mine productivity is improved, the integral upward movement of the adjacent steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports is realized through the mutual pulling of the adjacent steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports, the support is prevented from being shifted into a transportation cis trough in the operation process, the work of the lower support to the upper return air cis trough is avoided, the labor intensity is effectively reduced, and the three-machine operation efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the front view structure of embodiment 1 of the present invention.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3 is a schematic diagram of a front view structure of the arrangement of the return air gate, the coal face tunnel and the transportation gate.
Fig. 4 is a schematic cross-sectional view of the structure at A-A in fig. 3.
Fig. 5 is a schematic diagram of a three-machine set according to embodiment 4 of the present invention.
FIG. 6 is a schematic illustration of the arrangement of two single-sided mounted shearer cutting drums of the present invention mounted on a scraper conveyor.
Fig. 7 is a schematic diagram of a moving track of an n-shaped fully-mechanized coal mining hydraulic support of two adjacent steeply inclined coal seams in embodiment 5 of the present invention.
Fig. 8 is a side view of fig. 1.
The codes in the drawings are respectively: 1 is a coal cutter body, 2 is a scraper conveyor, 3 is a coal cutter rocker, 4 is a coal cutter cutting drum, 5 is a flow guiding device, 6 is a coal seam, 7 is a vertical shaft, 8 is a return air gate, 9 is a coal face roadway, 10 is a transportation gate, 11 is a top plate, 12 is a bottom plate, 13 is a downward mining coal cutter, 14 is a goaf shield beam, 15 is a goaf articulated beam, 16 is a bottom plate side supporting beam, 17 is a supporting upright post, 18 is a left pull frame oil cylinder, 19 is a right pull frame oil cylinder, 20 is a top plate side supporting beam, 21 is a steeply inclined coal seam n-shaped fully-mechanized coal hydraulic support, 22 is a telescopic leg, 23 is a pushing oil cylinder, A is an uppermost steeply inclined coal seam n-shaped fully-mechanized coal hydraulic support, and B is a steeply inclined coal seam n-shaped fully-mechanized coal hydraulic support adjacent to the A support.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
example 1: as shown in fig. 1,2 and 6: the downward mining type coal mining machine comprises a coal mining machine body 1, a coal mining machine rocker arm 3 and a coal mining machine cutting drum 4, wherein the coal mining machine cutting drum 4 is arranged on one side of the coal mining machine body 1, and the coal mining machine cutting drum 4 is connected with the coal mining machine body 1 through the coal mining machine rocker arm 3 and can swing up and down in a reciprocating manner. Coal below at least one side of the scraper conveyor 2 can be cut through downward swinging of the rocker arm 3 of the coal mining machine, the extracted coal is guided onto the scraper conveyor 2 through a guiding device 5 corresponding to the cutting roller 4 of the coal mining machine, the guiding device 5 can adopt guiding equipment such as a guiding plate which is known in the prior art, the coal is transported to a transportation chute 10 through the scraper conveyor 2, and the coal with one cut depth below the working surface can be completely extracted through movement of the scraper conveyor 2. The downward mining type coal mining machine can rapidly, safely and efficiently mine the steeply inclined coal seam with the coal seam thickness smaller than 8 meters and the inclination angle larger than 45 degrees in a downward mining mode along the coal seam trend.
Example 2: as shown in fig. 6, the shearer body 1 is provided with a shearer cutting drum 4 on the side thereof close to the roof 11, depending on the face width.
Example 3: as shown in fig. 6, the shearer body 1 is provided with a shearer cutting drum 4 on the side thereof close to the floor 12, depending on the face width.
When the coal seam 6 is thin (the coal seam thickness is 2m and below), the coal cutter body 1 is only provided with a single-side coal cutter drum 4 and a single-side flow guiding device 5, two downward mining type coal cutters 13 provided with the single-side coal cutter drum 4 are arranged on the scraper conveyor 2, one coal cutter drum 4 is arranged on the left side of the coal cutter body 1, the other coal cutter drum 4 is arranged on the right side of the coal cutter body 1, when the scraper conveyor 2 is arranged on the right side, the coal cutter drum 4 arranged on the left side of the coal cutter body 1 is used for mining the coal on the left side of the scraper conveyor 2, the downward mining type coal cutter 13 is stopped at the end part of a coal mining working face roadway 9 after the coal with a certain width is mined, then the scraper conveyor 2 moves leftwards to the lower part of a step, and the coal on the right side of the scraper conveyor 2 is mined by the other coal cutter drum 4 arranged on the right side of the coal cutter body 1, so that the coal with one cut depth of the working face is fully mined.
Example 4: as shown in fig. 1 and 2: the side of the coal cutter body 1 close to the top plate 11 and the side close to the bottom plate 12 are respectively provided with a coal cutter roller 4. When the coal seam 6 is thick (the coal seam thickness is more than 2 meters), the cutting drums 4 on the left and right sides of the downward mining type coal mining machine 13 cut downward and the scraper conveyor 2 moves left and right to fully mine coal with one cutting depth on the working surface.
The coal cutter body 1 adopts the meshing of a traveling gear and a pin row mechanism (the traveling gear is arranged on the coal cutter body 1 and the pin row mechanism is arranged on the scraper conveyor 2) to drive the coal cutter body 1 to travel back and forth on the scraper conveyor 2. The coal mining machine body 1 part of the invention comprises an electric cabinet and a traveling box, and the coal mining machine body 1 realizes traveling of the coal mining machine body 1 by driving a traveling gear in the traveling box to be meshed with a pin row mechanism of the scraper conveyor 2 through a traction motor and a reduction transmission system. The oil cylinder connecting the coal cutter body 1 and the coal cutter rocker arm 3 drives the coal cutter rocker arm 3 to swing up and down. The cutting drum 4 of the coal mining machine is driven to rotate by a drum cutting motor, a clutch mechanism and a speed reducing mechanism in the rocker arm 3 of the coal mining machine.
Example 5: as shown in fig. 5: the supporting device comprises a downward mining type coal mining machine 13, a scraper conveyor 2 and a plurality of steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports 21 arranged along a working face, wherein a coal mining machine body 1 of the downward mining type coal mining machine 13 is positioned on the scraper conveyor 2 and can move along the scraper conveyor 2, and the downward mining type coal mining machine 13 and the scraper conveyor 2 are positioned in a coal face roadway 9 formed by the steeply inclined coal seam fully-mechanized coal mining hydraulic supports 21.
The fully-mechanized coal mining hydraulic support 21 comprises a top plate side supporting beam 20, a goaf shield beam 14, a goaf hinging beam 15, a bottom plate side supporting beam 16 and supporting columns 17, wherein the top plate side supporting beam 20 is arranged on the side of a top plate 11, the bottom plate side supporting beam 16 is arranged on the side of a bottom plate 12, the goaf shield beam 14 is hinged with the goaf hinging beam 15 and back to the goaf, the top plate side supporting beam 20, the goaf shield beam 14, the goaf hinging beam 15 and the bottom plate side supporting beam 16 are hinged to form an n-shaped support, at least one row of supporting columns are arranged between the top plate side supporting beam 20 and the bottom plate side supporting beam 16, each row of supporting columns comprises two supporting columns 17 which are arranged in parallel, telescopic legs 22 for supporting and lifting are arranged on the lower parts of the top plate side supporting beams 20 and the bottom plate side supporting beam 16, the top plate side supporting beams 20 of each two adjacent two fully-mechanized coal mining hydraulic supports 21 are connected through left-hand pulling frame cylinders 18, the bottom plate side supporting beams 16 of each two adjacent fully-mechanized coal mining hydraulic supports 21 are connected through right-hand pulling frame cylinders 19, and the top plate side supporting beams 20 and the lower parts of the bottom plate side supporting beams 16 are provided with telescopic legs for a pushing hydraulic conveyor 2, and the telescopic legs 23 are arranged on the lower parts of the top plate side supporting beams and can push a pushing hydraulic conveyor 2.
The upper part of a top plate side supporting beam 20 of the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 is hinged with a goaf shield beam 14, the upper part of a bottom plate side supporting beam 16 is hinged with a goaf hinge beam, and the goaf shield beam 14 and the goaf hinge beam are hinged together; at least one row of support columns 17 is provided between the top plate side support beams 20 and the bottom plate side support beams 16, one end of each row of support columns 17 is connected with the top plate side support beams 20, and the other end of each row of support columns 17 is connected with the bottom plate side support beams 16. During operation, the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports are arranged in the working face roadway 9, the roof side supporting beams 20 and the bottom plate side supporting beams 16 are respectively contacted with the roof 11 and the bottom plate 12, and respectively jack up the roof 11 and the bottom plate 12 under the action of the supporting upright 17, so that the front-back through operation space is formed by the bottom plate side supporting beams 16, the roof side supporting beams 20, the goaf shielding beams 14 and the goaf hinging beams together with the coal face roadway 9, the downward mining type coal mining machine 13 operates below the plurality of steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports 21, a safe operation area is provided for the downward mining type coal mining machine, meanwhile, the operation space can be used as a ventilation channel in mining operation, normal operation of the coal mining machine is guaranteed, and safety accidents caused by unsmooth ventilation are avoided.
As shown in fig. 3, 4 and 5: during operation, the air return cis trough 8, the coal face roadway 9 and the transportation cis trough 10 are respectively arranged according to the distribution of the coal seam 6, the air return cis trough 8 and the transportation cis trough 10 are communicated with the ground through the vertical shaft 7, and the air return cis trough 8, the coal face roadway 9 and the transportation cis trough 10 form complete U-shaped ventilation, so that operation safety is ensured. Firstly, a plurality of steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports 21 are arranged along the working face of a coal face roadway 9, a downward mining coal cutter 13 and a scraper conveyor 2 are arranged in the coal face roadway 9 (the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports 21 mainly play a role in supporting to prevent roof fall and guarantee smooth ventilation), one side or two sides of the scraper conveyor 2 are respectively connected with a corresponding roof side supporting beam 20 or a corresponding bottom plate side supporting beam 16 through hydraulic cylinders, and the distance between the downward mining coal cutter 13 and the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports 21 can be adjusted through the hydraulic cylinders (the hydraulic cylinders realize position adjustment through pushing or pulling actions).
When the coal seam is thick (the coal seam thickness is more than 2 meters), the cutting drums 4 on the left and right sides of the downward mining type coal mining machine 13 cut downward and the scraper conveyor 2 moves left and right to fully extract coal with one cut depth on the working surface. When coal under the roof side support beams 20 and the floor side support beams 16 is to be mined, the support roof side support beams 20 properly retract the lifting legs 22, the coal cutter cutting drum 4 cuts coal under the lifting legs 22, the lifting legs 22 of the support roof side support beams 20 extend after mining, after a certain width is mined, the scraper conveyor 2 is pushed by a pushing cylinder 23 connected with the scraper conveyor 2 through the support roof side support beams 20 to the lower cut working surface of the step to continue mining towards the support floor side support beams 16, and when coal under the support floor side support beams 16 is mined, the support floor side support beams 16 properly retract the lifting legs 22, and the coal cutter cutting drum 4 cuts coal under the lifting legs 22. The telescoping legs 22 of the post-production carrier roof side rails 20 extend. The n-shaped fully-mechanized coal mining hydraulic support 21 of the steeply inclined coal seam of the working face after the whole coal with one cut depth is mined sequentially releases pressure from bottom to top, and the support completion support descends by one working distance in the direction of a diagram (102) after the telescopic legs are retracted. The oil cylinder pulls the support A upwards, then the top plate 11 and the bottom plate 12 are tightly supported by the support A, the support upright 17 of the support B is properly decompressed, then the support A is adopted to pull the support B upwards to realize the movement of the support B towards the arrow direction of the graphic representation (101), the method enables the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 of the working face to move upwards by a working distance as a whole, so that the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 moves towards the direction shown by (103), the continuous movement of the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 of the working face towards the arrow direction of (103) is realized, the situation that the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support of the working face is shifted into the transportation cis-channel 10 is avoided, the work of the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 of the lower part towards the upper return-air cis-channel switching frame is avoided, the labor intensity is effectively reduced, and the working efficiency is improved. The comprehensive movement in the two directions realizes that the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 moves in the direction indicated by (103) as a whole, and the continuous movement of the steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 in the direction indicated by the arrow of (103) realizes that the coal on the working face is fully mined, so that the lower steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic support 21 can be effectively prevented from falling into the transportation gate 10 to switch frames to the return gate 8.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (1)
1. The downward mining type coal mining machine comprises a coal mining machine body, a coal mining machine rocker arm and a coal mining machine cutting roller, wherein the coal mining machine cutting roller is respectively arranged on one side of the coal mining machine body close to a top plate and one side of the coal mining machine body close to a bottom plate, the coal mining machine cutting roller is connected with the coal mining machine body through the coal mining machine rocker arm and can reciprocate up and down, a deflector which can guide coal onto a scraper conveyor is arranged on the side corresponding to the coal mining machine cutting roller, the downward mining type coal mining machine is characterized by comprising the downward mining type coal mining machine, the scraper conveyor and a plurality of steeply inclined coal seam n-shaped fully-mechanized coal mining hydraulic supports arranged along a working face, the coal mining machine body of the downward mining type coal mining machine is positioned on the scraper conveyor and can move along the scraper conveyor, the downward mining type coal mining machine and the scraper conveyor are positioned in the steeply inclined coal seam fully-mechanized coal mining hydraulic supports, the fully-mechanized coal mining hydraulic support comprises a top plate side supporting beam, a goaf shield beam, a goaf hinging beam, a bottom plate side supporting beam and an upright post which are positioned on the top plate side, wherein the goaf shield beam is hinged with the goaf hinging beam and back to the goaf, the top plate side supporting beam, the goaf shield beam, the goaf hinging beam and the bottom plate side supporting beam are hinged to form an n-shaped support, at least one row of supporting upright posts are arranged between the top plate side supporting beam and the bottom plate side supporting beam, each row of supporting upright posts comprises two supporting upright posts which are arranged in parallel, telescopic legs for supporting lifting are arranged at the lower parts of the top plate side supporting beam and the bottom plate side supporting beam, the top plate side supporting beams of each two adjacent fully-mechanized coal mining hydraulic supports are connected together through a left pull frame oil cylinder, the bottom plate side supporting beams of each two adjacent fully-mechanized coal mining hydraulic supports are connected together through a right pull frame oil cylinder, the lower part of the top plate side supporting beam and the bottom plate side supporting beam is provided with a pushing cylinder for pushing the scraper conveyor.
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| CN201910883629.8A CN110566199B (en) | 2019-09-18 | 2019-09-18 | Matching device of downward mining type coal mining machine |
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| CN201910883629.8A CN110566199B (en) | 2019-09-18 | 2019-09-18 | Matching device of downward mining type coal mining machine |
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| CN110566199B true CN110566199B (en) | 2024-07-09 |
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| CN112459832A (en) * | 2020-10-27 | 2021-03-09 | 梁晖勇 | Scraper conveyor, double-rack-rail scraper conveyor and coal mining device |
| CN112459780B (en) * | 2020-10-27 | 2023-07-14 | 新疆矿源重工科技有限公司 | Comprehensive mining method for steeply inclined coal seam depression horizontal bracket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251774A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Fully mechanized coal mining method combining steeply inclined long-wall drilling type coal mining machine with hydraulic shield type supports |
| CN206329337U (en) * | 2016-12-23 | 2017-07-14 | 平安煤炭开采工程技术研究院有限责任公司 | The coal mining system of half-edge coal seam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2519096C1 (en) * | 2013-03-12 | 2014-06-10 | Федеральное государственное бюджетное учреждение науки Институт угля Сибирского отделения Российской академии наук (ИУ СО РАН) | Section of lining of mining face of steeply inclined seam with device of coal output of interlayer patch |
| CN203742644U (en) * | 2013-12-27 | 2014-07-30 | 重庆天巨承机械制造有限责任公司 | Hydraulic shield support for steep dip medium-thickness coal seam |
| CN106555591B (en) * | 2016-10-28 | 2017-06-27 | 黑龙江科技大学 | Comprehensive Mechanized Coal Mining Technology in Thin and Medium Thick Steeply Inclined Coal Seams |
| CN208122848U (en) * | 2018-04-25 | 2018-11-20 | 湖南科技大学 | A kind of half-edge coal seam mechanical coal mining device based on the horizontal coal plough of chain haulage |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251774A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Fully mechanized coal mining method combining steeply inclined long-wall drilling type coal mining machine with hydraulic shield type supports |
| CN206329337U (en) * | 2016-12-23 | 2017-07-14 | 平安煤炭开采工程技术研究院有限责任公司 | The coal mining system of half-edge coal seam |
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