CN210564526U - Downward mining coal mining machine and three-machine matched coal mining device - Google Patents
Downward mining coal mining machine and three-machine matched coal mining device Download PDFInfo
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- CN210564526U CN210564526U CN201921553626.XU CN201921553626U CN210564526U CN 210564526 U CN210564526 U CN 210564526U CN 201921553626 U CN201921553626 U CN 201921553626U CN 210564526 U CN210564526 U CN 210564526U
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Abstract
The utility model relates to a coal mining equipment technical field is a downward mining formula coal-winning machine and supporting coal mining device of three machines. The coal mining machine comprises a coal mining machine body, a coal mining machine rocker arm, a coal mining machine cutting roller and a guide plate, wherein the coal mining machine cutting roller is arranged on one side of the coal mining machine body. The utility model discloses a mode of mining downwards is moved towards along the coal seam, can be fast, safety, efficient be less than 8 meters, the inclination is greater than 45 degrees steeply inclined coal seam to coal seam thickness and exploit. The downward mining type coal mining machine, the scraper conveyor and the n-shaped fully-mechanized hydraulic support of the steeply inclined coal seam are matched to form a high-efficiency, high-yield and safe long-wall mechanized coal mining working face on the basis of the mining process of the steeply inclined coal seam, the comprehensive mechanized mining of the steeply inclined coal seam 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 above conditions can be greatly improved, the safety is improved, the automatic mining level is improved, the coal mining capacity is improved, and therefore the coal mine productivity is improved.
Description
Technical Field
The utility model relates to a coal mining equipment technical field is a downward mining formula coal-winning machine and supporting coal mining device of three machines.
Background
The coal mining machine is a main device for mining a coal layer on a coal mining working face of a coal mine, the performance of the coal mining machine directly influences the coal mining efficiency and the coal quality, cutting drums of the existing coal mining machine are uniformly distributed on one side of a machine body of the coal mining machine, coal in front of the machine body of the coal mining machine is mined by the cutting drums of the coal mining machine, the coal mining machine advances along the direction of the coal layer in the coal mining process, and the coal mining machine is suitable for. When the steeply inclined coal seam is mined, particularly the steeply inclined coal seam with the thickness less than 8 meters and the inclination angle more than 45 degrees, the traditional wall type coal mining method cannot be adopted for mining and arranging equipment such as a coal mining machine due to the large inclination angle and the thin coal seam, and the existing coal mining machine cannot be used for effective mining, so that the coal mining efficiency is low or even cannot be mined. In the mining of the steep coal seam, a flexible shield support mining method and a small-stage coal seam hydraulic support mining process are adopted for mining the steep coal seam with the coal seam thickness of less than 8 meters and the coal seam inclination angle of more than 45 degrees, but all the defects exist, and the mining method is not suitable for the mining of the steep coal seam. The coal seam has no supporting, supporting and mining equipment which is reliable and practical and is matched with the coal seam for use, and the coal seam has to be abandoned for mining at present.
Disclosure of Invention
The utility model provides a downward mining formula coal-winning machine and three machine supporting coal mining devices has overcome above-mentioned prior art not enough, and it can effectively solve the steeply inclined coal seam that thickness is less than 8 meters, the inclination is greater than 45 degrees because the coal seam inclination is big, the coal seam is thin leads to unable adoption traditional wall type coal mining method to exploit and arrange equipment such as coal-winning machine, can't use the coal-winning machine effectively to exploit the problem that leads to the coal mining efficiency low or even unable exploitation.
The utility model discloses still solved coal seam thickness and be less than 8 meters, the coal seam inclination is greater than the supporting problem of reliable coal-winning machine and support of the supporting nothing of three machines in the steeply inclined coal seam of 45 degrees.
The technical scheme of the utility model one of realize through following measure, a downward mining formula coal-winning machine, including coal-winning machine fuselage, coal-winning machine rocking arm, coal-winning machine cutting drum and guide plate, be equipped with coal-winning machine cutting drum in coal-winning machine fuselage one side, coal-winning machine cutting drum links together and can the up-and-down reciprocal swing through coal-winning machine rocking arm and coal-winning machine fuselage, is equipped with on the coal-winning machine fuselage that corresponds coal-winning machine cutting drum side can be with the guide plate on coal water conservancy diversion to the scraper conveyor.
The following are further optimization or/and improvement of the technical scheme of the utility model:
and a cutting roller of the coal mining machine is arranged on one side of the coal mining machine body close to the top plate.
And a cutting roller of the coal mining machine is arranged on one side of the coal mining machine body close to the bottom plate.
And the side of the coal mining machine body close to the top plate and the side of the coal mining machine body close to the bottom plate are respectively provided with a coal mining machine cutting roller.
The second technical scheme of the utility model is realized by the following measures, a three-machine matched coal mining device comprises a downward mining type coal mining machine, a scraper conveyor and a plurality of n-shaped fully-mechanized coal mining hydraulic supports arranged along a working face, wherein 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 fully-mechanized coal mining hydraulic supports of the steeply-inclined coal seam, the fully-mechanized coal mining hydraulic supports of the steeply-inclined coal seam comprise a top plate side supporting beam positioned on the top plate side, a goaf supporting beam, a goaf hinged beam, a bottom plate side supporting beam positioned on the bottom plate side and a stand column, the hinged back of the mining supporting beam and the hinged beam is opposite to the goaf, the top plate side supporting beam, the goaf supporting beam and the hinged beam between the bottom plate side supporting beams form a support with an n-shaped structure, at least one row of supports is arranged between the, each row of supports comprises two columns which are arranged in parallel, telescopic legs used for lifting of the supports are arranged on the lower portions of the top plate side supporting beam and the bottom plate side supporting beam, the top plate side supporting beams of every two adjacent steeply inclined coal seam n-shaped fully-mechanized mining hydraulic supports are connected together through a left pull frame oil cylinder, the bottom plate side supporting beams of every two adjacent steeply inclined coal seam n-shaped fully-mechanized mining hydraulic supports are connected together through a right pull frame oil cylinder, and pushing oil cylinders used for pushing a scraper conveyor are arranged on the lower portions of the top plate side supporting beam and the bottom plate side supporting beam.
The utility model forms a high-efficiency, high-yield and safe longwall mechanized coal mining working face on the basis of the mining process of the steeply inclined coal seam by matching the downward mining coal mining machine, the scraper conveyor and a plurality of n-shaped fully-mechanized coal mining hydraulic supports of the steeply inclined coal seam arranged along the working face, realizes the comprehensive mechanized mining of the steeply inclined coal seam with the thickness of less than 8 meters and the coal seam inclination angle of more than 45 degrees, can greatly improve the coal mining efficiency under the conditions, improve the safety, improve the automatic mining level and the coal mining capacity, the n-shaped fully-mechanized mining hydraulic support has the advantages that the productivity of a coal mine is improved, the whole body of the n-shaped fully-mechanized mining hydraulic support moves upwards by mutually pulling the n-shaped fully-mechanized mining hydraulic support in the adjacent steeply inclined coal seam, the support is prevented from jumping into a transportation crossheading in the operation process, the lower support is prevented from working towards an upper return air crossheading reversing frame, the labor intensity is effectively reduced, and the operation efficiency of three machines is improved.
Drawings
Fig. 1 is a schematic view of a main structure of an embodiment 1 of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a schematic structural view of the arrangement of a return air crossheading, a coal face roadway and a transportation crossheading from the front.
3 fig. 3 4 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 at 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3
Fig. 5 is a schematic diagram of a three-machine kit according to embodiment 4 of the present invention.
Fig. 6 is a schematic diagram of the arrangement of two single-side installed shearer cutting drums installed on the scraper conveyor.
Fig. 7 is a schematic diagram of a moving track of n-shaped fully-mechanized coal mining hydraulic supports for 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 figures are respectively: the device comprises a coal mining machine body 1, a scraper conveyor 2, a coal mining machine rocker arm 3, a coal mining machine cutting roller 4, a deflector 5, a coal bed 6, a vertical shaft 7, an air return crossheading 8, a coal face roadway 9, a transportation crossheading 10, a roof plate 11, a floor plate 12, a downward mining coal mining machine 13, a goaf shield beam 14, a goaf articulated beam 15, a floor plate side support beam 16, a support upright column 17, a left pull frame oil cylinder 18, a right pull frame oil cylinder 19, a roof plate side support beam 20, a steeply inclined coal bed n-shaped fully-mechanized mining hydraulic support 21, a telescopic leg 22, a push oil cylinder 23, an uppermost steeply inclined coal bed n-shaped fully-mechanized mining hydraulic support A, and a steeply inclined coal bed n-shaped fully-mechanized mining hydraulic support B adjacent to the support A.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention will be further described with reference to the following examples and drawings:
example 1: as shown in the attached figures 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, a coal mining machine cutting roller 4 and a guide plate 5, wherein the coal mining machine cutting roller 4 is arranged on one side of the coal mining machine body 1, the coal mining machine cutting roller 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 mode, and the guide plate 5 capable of guiding coal to a scraper conveyor 2 is arranged on the coal mining machine body 1 corresponding to the side of the coal mining machine cutting roller 4. The coal below at least one side of the scraper conveyor 2 can be cut through the downward swing of the rocker arm 3 of the coal mining machine, the extracted coal is guided to the scraper conveyor 2 through the guide plate 5 corresponding to the cutting roller 4 of the coal mining machine, the coal is conveyed to the conveying gate 10 through the scraper conveyor 2, and the coal with one cut depth at the lower part of the working face can be completely extracted through the 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 thickness of less than 8 meters and the inclination angle of more than 45 degrees by adopting a downward mining mode along the coal seam.
Example 2: as shown in fig. 6, the shearer body 1 is provided with a shearer cutting drum 4 on the side close to the roof 11 according to the width of the working face.
Example 3: as shown in fig. 6, the shearer body 1 is provided with shearer cutting drums 4 on the side close to the bottom plate 12 according to the width of the working face.
When the coal seam 6 is thin (the thickness of the coal seam is 2 m and below), the coal mining machine body 1 is only provided with a single-side coal mining machine cutting roller 4 and a single-side guide plate 5, the mining method is that two downward mining type coal mining machines 13 provided with the single-side coal mining machine cutting rollers 4 are arranged on a scraper conveyor 2, one coal mining machine cutting roller 4 is arranged on the left side of the coal mining machine body 1, the other coal mining machine cutting roller 4 is arranged on the right side of the coal mining machine body 1, when the scraper conveyor 2 is arranged close to the right side, the coal on the left side of the scraper conveyor 2 is mined by the coal mining machine cutting rollers 4 arranged on the left side of the coal mining machine body 1, after the coal mining with a certain width is finished, the downward mining type coal mining machines 13 are stopped at the end part of a coal mining face roadway 9, then the scraper conveyor 2 moves to the left side, thereby realizing the complete extraction of coal with one cut depth on the working face.
Example 4: as shown in the attached figures 1 and 2: the side of the coal mining machine body 1 close to the top plate 11 and the side close to the bottom plate 12 are respectively provided with a coal mining machine cutting roller 4. When the coal seam 6 is thick (the thickness of the coal seam is more than 2 meters), all the coal with one cut depth on the working face is extracted by downwards cutting the cutting rollers 4 on the left side and the right side of the downward mining type coal mining machine 13 and left-right moving the scraper conveyor 2.
The coal mining machine body 1 drives the coal mining machine body 1 to reciprocate on the scraper conveyor 2 by adopting the meshing of a travelling gear and a pin row mechanism (the travelling gear is arranged on the coal mining machine body 1, and the pin row mechanism is arranged on the scraper conveyor 2). The utility model discloses a coal-winning machine fuselage 1 part contains electric cabinet and walking case, and coal-winning machine fuselage 1 passes through the walking gear in traction motor, the speed reduction transmission system drive walking case and rotates with the round pin row mechanism meshing of scraper conveyor 2 and realize the walking of coal-winning machine fuselage 1. The rocker arm 3 of the coal mining machine is driven to swing up and down by an oil cylinder which connects the machine body 1 of the coal mining machine and the rocker arm 3 of the coal mining machine. The cutting drum 3 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 three-machine matched coal mining device comprises a downward mining type coal mining machine 13, a scraper conveyor 2 and a plurality of 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 mining working face roadway 9 formed by the fully-mechanized coal mining hydraulic supports 21 of the steeply inclined coal seams.
The fully mechanized mining hydraulic support 21 for the steeply inclined coal seam comprises a top plate side supporting beam 20 positioned on the side of a top plate 11, a goaf shielding beam 14, a goaf hinged beam 15, a bottom plate side supporting beam 16 positioned on the side of a bottom plate 12 and supporting upright posts 17, wherein the goaf shielding beam 14 is hinged with the goaf hinged beam 15 and then faces the goaf, the top plate side supporting beam 20, the goaf shielding beam 14, the goaf hinged beam 15 and the bottom plate side supporting beam 16 are hinged to form a support with an n-shaped structure, at least one row of supporting upright posts are arranged between the top plate side supporting beam 20 and the bottom plate side supporting beam 16, each row of supporting upright comprises two supporting upright posts 17 which are arranged in parallel, telescopic legs 22 for lifting the support are arranged at the lower parts of the top plate side supporting beam 20 and the bottom plate side supporting beam 16, the top plate side supporting beams 20 of every two adjacent n-shaped fully mechanized mining hydraulic supports 21 for the steeply inclined coal seam are connected together through left-pulling-frame oil cylinders 18, and the bottom supporting beams 16 of every two adjacent fully mechanized mining hydraulic 19, a pushing cylinder 23 for pushing the scraper conveyor 2 is arranged at the lower part of the top plate side supporting beam 13 and the bottom plate side supporting beam 16, and the telescopic legs 22 can be driven by hydraulic cylinders to extend and retract.
The upper part of a top plate side supporting beam 20 of an n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam is hinged with a goaf shield beam 14, the upper part of a bottom plate side supporting beam 16 is hinged with a goaf hinged beam, and the goaf shield beam 14 and the goaf hinged beam are hinged together; at least one row of supporting columns 17 is arranged between the top plate side supporting beam 20 and the bottom plate side supporting beam 16, one end of each row of supporting columns 17 is connected with the top plate side supporting beam 1, and the other end of each row of supporting columns 17 is connected with the bottom plate side supporting beam 16. During operation, the n-shaped fully mechanized coal mining hydraulic supports of the steeply inclined coal seam are arranged in the working face roadway 9, the top plate side supporting beams 20 and the bottom plate side supporting beams 16 are respectively contacted with the top plate 11 and the bottom plate 12, and the top plate 11 and the bottom plate 12 are respectively tightly propped under the action of the supporting upright posts 17, so that the bottom plate side supporting beams 16, the top plate side supporting beams 20, the goaf shield beams 14, the goaf articulated beams and the coal face roadway 9 jointly form a front-rear through operation space, the downward mining type coal mining machine 13 operates below the n-shaped fully mechanized coal mining hydraulic supports 21 of the steeply inclined coal seam, a safe operation area is provided for the downward mining type coal mining machine, and the operation space can also be used as an air duct in mining operation, so that normal operation of the coal mining machine is guaranteed, and safety accidents caused by unsmooth ventilation are avoided.
As shown in figures 3, 4 and 5: during operation, the return air crossheading 8, the coal face roadway 9 and the transportation crossheading 10 are respectively arranged according to the distribution of the coal seam 6, the return air crossheading 8 and the transportation crossheading 10 are communicated with the ground through the vertical shaft 7, and the return air crossheading 8, the face roadway 9 and the transportation crossheading 10 form complete U-shaped ventilation, so that the operation safety is ensured. Firstly, a plurality of n-shaped fully-mechanized mining hydraulic supports 21 of the steeply inclined coal seam are arranged along the working face of a coal face roadway 9, a downward mining type coal mining machine 13 and a scraper conveyor 2 are arranged in the coal face roadway 9 (the n-shaped fully-mechanized mining hydraulic supports 21 of the steeply inclined coal seam mainly support to prevent roof caving and ensure smooth ventilation), one side or two sides of the scraper conveyor 2 are respectively connected with a corresponding roof side supporting beam 13 or a corresponding bottom plate side supporting beam 16 through hydraulic oil cylinders, and the distance between the downward mining type coal mining machine 13 and the n-shaped fully-mechanized mining hydraulic supports 21 of the steeply inclined coal seam can be adjusted through the hydraulic oil cylinders (the hydraulic oil cylinders realize position adjustment through pushing or pulling actions).
When the coal seam is thick (the thickness of the coal seam is more than 2 meters), all the coal with one cut depth on the working face is extracted by downwards cutting the cutting rollers 4 on the left side and the right side of the downward mining type coal mining machine 13 and leftwards and rightwards moving the scraper conveyor 2. When coal below the roof side supporting beam 20 and the floor side supporting beam 16 is to be mined, the support roof side supporting beam 20 appropriately contracts the telescopic legs 6, the cutting drum 4 of the coal mining machine cuts and mines coal at the lower part of the telescopic legs 6, the telescopic legs 6 of the support roof side supporting beam 20 extend after mining, the pushing cylinder 23 connected with the scraper conveyor 2 through the support roof side supporting beam 1 pushes the scraper conveyor 2 to the cut working face at the lower part of the step after mining for a certain width, the mining continues towards the direction of the support floor side supporting beam 20, when coal at the lower part of the support floor side supporting beam 20 is mined, the support floor side supporting beam 20 appropriately contracts the telescopic legs 6, and the cutting drum 4 of the coal mining machine cuts and mines coal at the lower part of the telescopic legs 6. The telescoping legs 6 of the support beams 4 on the roof side of the support post-mine roof extend. The n-shaped fully-mechanized coal mining hydraulic support 21 of the steeply inclined coal seam on the working face after all the cut coal on the working face is mined is sequentially decompressed from bottom to top, the telescopic leg descending support is retracted, and the support finishing support descends for a working distance in the direction of the drawing (102). The support A is pulled upwards by the oil cylinder, the top plate 11 and the bottom plate 12 are tightly supported by the support A, the supporting upright post 17 of the support B is properly decompressed, the support A is adopted to pull the support B to move upwards to realize the movement of the support B to the arrow direction of the drawing (101), the method is adopted to ensure that the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam of the working face moves upwards by a working distance integrally, thereby realizing the movement of the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam generally to the arrow direction of the drawing (103), realizing the coal recovery and the whole mining of the working face by continuously moving the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam of the working face to the arrow direction of the drawing (103), avoiding the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam at the lower part from jumping into the transportation chute 10 in the working process, avoiding the n-shaped fully-, the working efficiency is improved. The n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam moves in the direction (103) as a whole through the comprehensive movement in the two directions, the coal on the working face is fully mined by continuously moving the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam in the direction (103) in the arrow direction, and the n-shaped fully-mechanized mining hydraulic support 21 of the steeply inclined coal seam on the lower portion can be effectively prevented from falling into the transportation crossheading 10 and being inverted to the return air crossheading 8 through the method.
Above technical feature constitutes the utility model discloses an embodiment, it has stronger adaptability and implements the effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (5)
1. A downward mining type coal mining machine is characterized by comprising a coal mining machine body, a coal mining machine rocker arm, a coal mining machine cutting roller and a guide plate, wherein the coal mining machine cutting roller is arranged on one side of the coal mining machine body, the coal mining machine cutting roller is connected with the coal mining machine body through the coal mining machine rocker arm and can swing up and down in a reciprocating mode, and the guide plate capable of guiding coal to a scraper conveyor is arranged on the coal mining machine body on the side corresponding to the coal mining machine cutting roller.
2. A downward mining shearer according to claim 1, wherein the shearer body is provided with shearer cutting drums on a side thereof adjacent the roof.
3. A downward mining shearer according to claim 1, wherein the shearer body is provided with shearer cutting drums on a side thereof adjacent the floor.
4. A downward mining shearer according to claim 1, wherein the shearer body is provided with shearer cutting drums on a side adjacent to the roof and on a side adjacent to the floor, respectively.
5. A three-machine matched coal mining device is characterized by comprising a downward mining type coal mining machine, a scraper conveyor and a plurality of 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 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 fully-mechanized coal mining hydraulic supports of the steeply inclined coal seams, each fully-mechanized coal mining hydraulic support comprises a top plate side supporting beam positioned on a top plate side, a goaf shielding beam, a goaf articulated beam, a bottom plate side supporting beam positioned on a bottom plate side and upright posts, the goaf shielding beam and the goaf articulated beam are articulated to face a goaf, the top plate side supporting beam, the goaf shielding beam, the goaf articulated beam and the bottom plate side supporting beam are articulated to form a support with an n-shaped structure, 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 columns comprises two supporting columns which are arranged in parallel, telescopic legs used for lifting of the support are arranged at the lower portions of the top plate side supporting beam and the bottom plate side supporting beam, the top plate side supporting beams of every two adjacent steeply inclined coal seam n-shaped fully-mechanized mining hydraulic supports are connected together through a left pull frame oil cylinder, the bottom plate side supporting beams of every two adjacent steeply inclined coal seam n-shaped fully-mechanized mining hydraulic supports are connected together through a right pull frame oil cylinder, and pushing oil cylinders used for pushing a scraper conveyor are arranged at the lower portions of the top plate side supporting beam and the bottom plate side supporting beam.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047902A (en) * | 2021-05-19 | 2021-06-29 | 辽宁工程技术大学 | Thin seam is combined and is adopted three narrow space personnel of machine of working face and accessory conveyer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047902A (en) * | 2021-05-19 | 2021-06-29 | 辽宁工程技术大学 | Thin seam is combined and is adopted three narrow space personnel of machine of working face and accessory conveyer |
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