CN214660150U - Thick coal seam HLG type series scraping and cutting machine - Google Patents

Abstract

The utility model discloses a machine is cut to thick coal seam HLG type series inspection pick, include: the walking portion, the walking portion includes frame and present general crawler-type chassis, the fuselage indicates a plurality of equipment boxes of fast assembly on being fixed in the walking portion frame, the cutting portion is the cutting drum that is located anterior, hydraulic motor (motor), rocking arm etc. and constitutes the part that is used for cutting coal wall floor, the transportation portion is reverse open scraper conveyor, open kerve transportation raw coal, go up the groove and move empty chain and supplementary the raw coal that overflows in back medium plate skylight. The utility model discloses the one-way cutting coal wall floor of level in the workspace that portal frame strutted entirely, through scraper conveyor constantly with the former coal after the transportation unload swift current coal inclined drifts into, solve the transportation function of picking and cutting the machine, need not additionally to dispose the problem that the haulage equipment used.

Description

Thick coal seam HLG type series scraping and cutting machine

Technical Field

The utility model relates to a coal mining equips technical field, concretely relates to thick coal seam HLG type series picks and cuts machine that is applicable to inclination more than 55, 1.8-12m thickness coal seam, serves in "picking of steeply inclined coal seam cuts coal mining method".

Background

The coal mining equipment is designed according to the occurrence conditions of coal underground and the coal mining method determined by the occurrence conditions. The steeply inclined coal seam accounts for 4% of the total reserve of coal resources in China, and has wide distribution, complex occurrence conditions and a large number of mines. And for a steep inclined coal seam with the inclination angle of more than 55 degrees and the coal seam thickness of between 0.6 and 12m, mechanized mining is not realized. For a long time, a large amount of research and development work is carried out on the coal seams, various coal mining methods are provided, but the efficiency is low, the cost is high, the safety pressure is extremely high, and if proper mechanical mining methods and mining equipment are not found as soon as possible, the mining is stopped and abandoned due to policy pressure, and further, a large amount of coal resources are wasted.

Traditionally, coal mining equipment used for mining steep seams mainly comprises a flexible shield support, a single hydraulic prop and a suspended top beam hydraulic support. The flexible shield support is mainly used for a pseudo-pitch flexible shield support coal mining method, is suitable for a steep blast mining working face, and does not realize coal mining and transportation mechanization; the forward movement of the single hydraulic prop is completed manually, the labor intensity of workers is high, the safety is poor, the production efficiency is low, and the prop is easy to sink into the bottom plate; the exposed top plate area after the top beam of the suspended top beam hydraulic support is unloaded is large, so that the falling is easy to cause, and the self-stability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machine is cut to thick coal seam HLG type series inspection rejects to the coal breakage and the transportation problem in solving the mechanized exploitation of this type of coal seam that present put forward in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a thick coal seam HLG type series skiving machine comprises:

the walking part comprises a frame and a crawler-type chassis, and the crawler-type chassis is currently universal equipment;

the machine body is a plurality of equipment boxes which are fixed on the frame of the walking part and are assembled quickly;

the cutting part is connected with the front side of the machine body;

and the transportation part is connected with the chassis of the walking part.

Preferably, the walking part further includes: the chassis comprises a crawler and a crawler chassis, the combination mode of the crawler and the crawler chassis is the prior art, and the frame comprises a frame cross beam and a frame longitudinal beam which are welded into a framework to form a platform for installing a body equipment box body;

the frame and the chassis are fixedly connected by bolts to form an integral walking part.

Preferably, the body includes: cutting portion mounting bracket, the equipment box adopts split type equipment bolt fastening, a plurality of equipment boxes include driver's cabin, hydraulic pressure distribution cabinet, energy storage cabinet, hydraulic power unit, supply back liquid cabinet, the automatically controlled cabinet of power supply, just cutting portion mounting bracket, driver's cabin, hydraulic pressure distribution cabinet, energy storage cabinet, hydraulic power unit, supply back liquid cabinet, the automatically controlled cabinet of power supply all are fixed in on the walking portion mounting platform.

Preferably, the cab, the hydraulic distribution cabinet, the energy storage cabinet, the hydraulic pump station, the liquid supply and return cabinet and the electric power supply control cabinet can be sequentially arranged from front to back according to different applicable coal beds or the arrangement mode can be adjusted according to the requirements of balance weight balance, the size of the cross section of the machine body and the like.

Preferably, the cutting part includes: long helical cylinder, hydraulic motor or electric machine of cutting cylinder, rocker arm jack, dovetail brace or push-pull jack, rocker arm and jack shaft, dovetail brace jack;

the tail end of the cutting part mounting frame is hinged to the tail end of the tail end.

Preferably, the transport section includes: a hanging suspension cable, a shovel plate and an onboard reverse scraper conveyer;

the airborne reverse scraper transporter is hung in the middle of the bottom of the chassis, one end of the hanging suspension cable is connected to the upper surface of the box body, the other end of the hanging suspension cable is connected to the airborne reverse scraper transporter, the airborne reverse scraper transporter is hung on the walking part by adopting semi-rigid connection and is in close joint with a coal wall floor, and the shovel plate is fixed at the front end of the vehicle frame.

Preferably, the on-board reverse flight conveyor comprises: the automatic scraper chain mechanism comprises a scraper machine lower chain groove, a scraper machine upper chain groove, a tail roller, a skylight, a machine head roller, a machine head frame, a scraper, a chain, a top plate, a middle plate, a groove step edge and a machine tail frame;

the middle grooves are formed by welding the groove edges, the middle plate and the top plate, a plurality of sections of middle grooves are connected in a butt joint mode to form a reverse scraper conveyor body, two ends of the reverse scraper conveyor body are connected with the headstock and the tailstock, the headstock is provided with the head roller, the head roller is driven by a transmission part mainly comprising a hydraulic motor or a motor reducer, the tailstock is provided with the tailstock roller, the vehicle-mounted reverse scraper conveyor is divided into a lower chain groove and an upper chain groove by taking the middle plate as a boundary, the chains are distributed in the lower chain groove of the scraper conveyor and the upper chain groove of the scraper conveyor to form closed-loop operation through the redirection of the headstock roller and the tailstock roller, scrapers are additionally arranged on the chains at certain intervals, the chains and the scrapers are driven by the rotation power of the headstock roller to carry raw coal to a preset coal chute, and the lower chain groove of the scraper conveyor is used for conveying the raw coal, the scraper conveyor upper chain groove walking empty chain, the scraper conveyor lower chain groove is not provided with a bottom sealing plate, a coal wall is used as a bottom plate, the middle plate is provided with a skylight and used for overflowing excessive raw coal to the scraper conveyor upper chain groove, blocking is prevented, the overflowing raw coal is transported back to the rear skylight through the upper chain and discharged downwards, and the peak shaving effect is achieved.

Drawings

FIG. 1 is a schematic front view of the main structure of the present invention;

FIG. 2 is a schematic top view of the main rocker arm opening structure of the present invention;

fig. 3 is a schematic top view of the main rocker arm tightening structure of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the fuselage of the present invention;

FIG. 5 is a schematic front view of another main structure of the present invention;

FIG. 6 is a schematic top view of another embodiment of the rocker arm opening structure of the main body of the present invention;

fig. 7 is a schematic top view of another main rocker arm tightening structure of the present invention;

FIG. 8 is a schematic front view of the main body structure of the three rollers of the present invention;

fig. 9 is a schematic top view of a three-roller main body rocker arm tightening structure of the present invention;

fig. 10 is a schematic top view of the three-roller-body rocker arm opening structure of the present invention;

FIG. 11 is a schematic structural view of a scraper conveyor of the present invention;

FIG. 12 is a schematic cross-sectional view of a scraper conveyor of the present invention;

fig. 13 is a schematic view of a partial top view structure of the scraper conveyor of the present invention;

fig. 14 is a schematic front view of the coal cutting process of the present invention.

In the figure: 1. a long helical drum; 2. cutting drum hydraulic or electric motors; 3. a rocker arm; 4. a rocker arm jack; 5. dovetail braces or push-pull jacks; 6. rocker arm and jack shaft; 7. a cutting part mounting frame; 8. a cab; 9. a hydraulic distribution cabinet; 10. an energy storage cabinet; 11. a hydraulic pump station; 12. a liquid supply and return cabinet; 13. an electric power supply control cabinet; 14. hanging a suspension cable; 15. a shovel plate; 16. an onboard reverse scraper transporter; 17. a crawler belt; 18. a track shaft; 19. a frame cross member; 20. a frame rail; 21. a scraper chain lower groove; 22. a chain feeding groove of the scraper conveyor; 23. a dovetail brace jack; 24. a tail drum; 25. a skylight; 26. a head drum; 27. a coal return and cleaning guide plate; 28. a squeegee; 29. a chain; 30. a top plate; 31. a middle plate; 32. binding the grooves; 33. a tail frame.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example 1

Referring to fig. 1-11 and 14, the present invention provides an embodiment: a thick coal seam HLG type series skiving machine comprises:

the walking part comprises a frame and a currently universal crawler-type chassis;

the machine body is a plurality of equipment boxes which are fixed on the frame of the walking part and are assembled quickly;

the cutting part is connected with the front side of the machine body;

and the transportation part is connected with the chassis of the walking part.

Preferably, the walking part further includes: the chassis comprises a crawler 17 and a crawler chassis 18, wherein the frame comprises a frame cross beam 19 and a frame longitudinal beam 20 which are platforms formed by welding frames and used for installing a body equipment box body;

the frame and the chassis are fixedly connected by bolts to form an integral walking part.

Preferably, the body includes: cutting portion mounting bracket 7, the equipment box adopts split type equipment bolt fastening, a plurality of equipment boxes include driver's cabin 8, hydraulic pressure distribution cabinet 9, energy storage cabinet 10, hydraulic power unit 11, supply back liquid cabinet 12, the automatically controlled cabinet 13 of power supply, just cutting portion mounting bracket 7, driver's cabin 8, hydraulic pressure distribution cabinet 9, energy storage cabinet 10, hydraulic power unit 11, supply back liquid cabinet 12, the automatically controlled cabinet 13 of power supply all are fixed in on the walking portion mounting platform.

Preferably, the cab 8, the hydraulic distribution cabinet 9, the energy storage cabinet 10, the hydraulic pump station 11, the liquid supply and return cabinet 12 and the electric power supply control cabinet 13 can be sequentially arranged from front to back according to different applicable coal seams or the arrangement mode can be adjusted according to the requirements of balance weight, cross section size of the machine body and the like.

Preferably, the cutting part includes: a long spiral roller 1, a cutting roller hydraulic motor or motor 2, a rocker arm 3, a rocker arm jack 4, a dovetail support or push-pull jack 5, a rocker arm and jack shaft 6 and a dovetail support jack 23;

the rear parts of the rocker arm 3 and the rocker arm jack 4 are hinged with the cutting part mounting frame 7 through the jack shaft 6, the rocker arm 3 is arranged above the rocker arm jack 4, the output end of the front part of the rocker arm jack 4 is hinged with the middle part of the rocker arm 3, the lower part of the rocker arm 3 is connected with the long spiral roller 1, the middle part of the long spiral roller 1 is connected with the rocker arm 3 through the cutting roller hydraulic motor or the motor 2, the cutting roller hydraulic motor or the motor 2 is fixed at the front part of the rocker arm 3, the upper end of the cutting part mounting frame 7 is fixed with the dovetail support jack 23, the output end of the dovetail support jack 23 is connected with one end of the dovetail support or the push-pull jack 5, and the dovetail support or the push-pull jack 5 is connected with the front part of the rocker arm 3 at the other end.

Preferably, the transport section includes: a hanging suspension cable 14, a shovel plate 15 and an onboard reverse scraper conveyor 16;

the airborne reverse scraper transporter 16 is suspended in the middle of the bottom of the chassis, one end of the hanging suspension cable 14 is connected to the upper surface of the box body, the other end of the hanging suspension cable 14 is connected to the airborne reverse scraper transporter 16, the airborne reverse scraper transporter 16 is suspended on the walking part by adopting semi-rigid connection and is closely jointed with a coal wall floor, and the shovel plate 15 is fixed at the front end of the frame.

The HLG type crawler-type scraper conveyer for the thick coal seam is composed of structural members GW/KFT (G: scraper conveyer; W: bendable; F: reverse placement and reverse transportation; K: open bottom plate and middle plate skylight; T: skylight, middle plate open skylight and top plate maintenance skylight);

the long spiral roller 1 is driven by a hydraulic motor or a permanent magnet motor to rotate so as to cut the coal wall; a cutting drum hydraulic motor or electric machine 2 is used to power the drum; the rocker arm 3 is used for supporting the hydraulic motor and the roller; the rocker arm jack 4 is used for controlling the rocker arm to lift so as to realize the functions of bottom lying and top picking; the dovetail support or the push-pull jack 5 pushes the rocker arm to rotate through the expansion of the jack; the rocker arm and the jack shaft 6 synchronously rotate with the jack through a key joint short arm; the cutting part mounting frame 7 is used as a connecting bracket of the machine body and the cutting part; a driver seat and a console are arranged in the cab 8; the hydraulic distribution cabinet 9 is used for installing electromagnetic valves and supplying liquid to each liquid using component in a controlled manner; the energy storage cabinet 10 is used for storing high-pressure liquid and supplying the liquid to each liquid using component; the hydraulic pump station 11 consists of a motor, a reducer and a hydraulic pump and adopts a frequency conversion pressurization mode; a liquid supply tank is arranged in the liquid supply and return cabinet 12 and is used for storing low-pressure liquid; the power supply electric control cabinet 13 is used for arranging power supply and electric control equipment to realize automatic control; the hanging suspension rope 14 lifts the conveyor when the picking machine retreats and swings; the shovel plate 15 is used for collecting raw coal and transferring the raw coal to an onboard reverse scraper conveyor from an opening; the airborne reverse scraper conveyor 16 is used for reverse transportation and transporting the raw coal to a coal chute inclined roadway; the crawler belt 17 is a walking part of the picking machine; the track shaft 18 is used for providing power for the track; frame rails 19 and frame rails 20 provide support for the placement of the respective boxes.

The working principle and the beneficial effects of the technical scheme are as follows: the reverse scraper conveyer, the shovel plate and the hanging suspension cable form a conveying part. The cutting drum utilizes the function of the spiral conveyor to place raw coal in the shovel board collecting range, the shovel board is collected to the coal unloading port again, the shovel board is transported with the reverse scraper conveyor, and the shovel board is unloaded into the nearest coal sliding inclined roadway to finish the raw coal transportation of the working face. The hanging suspension cable is used for a reverse scraper conveyer outside a limited hoisting machine body to adjust the curvature to align to a coal sliding inclined roadway and retreat to reduce resistance.

The hydraulic power generation system is characterized in that a structural member hydraulic pump station (comprising a motor, a speed reducer and a hydraulic pump), variable-frequency liquid supply, an energy storage tank, a liquid supply and return tank, a hydraulic distribution cabinet, a power supply electric control cabinet and a cab are respectively arranged in independent box bodies, the box bodies are connected and installed on a frame through bolts, and the box bodies are mutually connected through bolts in an interference gap manner to form a relatively stable whole body to form a machine body. The hydraulic power supply device is used for supplying electric power and hydraulic power to each part and simultaneously achieving the stability and balance of the whole machine.

The walking part consists of a structural member crawler and a frame thereof and is used for pushing a roller of the cutting part to cut coal and after completing a cycle of cutting, the walking part retreats to a preset beveling feed position after no load to start the next cycle of coal cutting.

The utility model discloses a most important equipment in "picking cutting method", once solved the mechanization of two processes in the coal face adopted, prop up, fortune three processes, for the mechanized mining in the coal seam more than realizing 1.8m-12m thick steeply-inclined dip angle 55 provides probably, the exploitation that marks this type of coal seam gets into mechanized and automatic exploitation stage, the working face complete set supporting system of hydraulic support group in order to form the mechanized coal mining method of steeply-inclined coal seam level is constituteed to a plurality of door shape supports. The coal wall floor is cut horizontally and unidirectionally by the scraping machine in a working space fully supported by the door-shaped bracket, and raw coal is continuously conveyed backwards and unloaded into the coal sliding inclined roadway. The equipment such as a skiving machine, personnel and the like works in a safe and good environment and state, and the working efficiency of the method is basically incomparable with the existing coal mining method of the coal seam.

The utility model can adapt to the characteristic of large fluctuation range of the coal seam thickness, 1 long spiral roller is used, 1 coal is transversely cut, the roller diameter is increased, the roller is internally provided with a permanent magnet motor or a hydraulic motor independent transmission mode to enable the scraping machine to be more suitable for the coal mining process of 'scraping method', the coal shoveling effect is improved, the roller of the cutting part can swing in the advancing process of the walking part and can realize continuous cutting coal dropping, the scraper conveyor of the conveying part can realize continuous transportation, the width of the cutting coal wall of the scraping machine is adjusted by controlling the opening angle of the cutting roller through the dovetail support of the cutting part, the problem of large fluctuation change of the coal seam thickness is properly solved, the coal wall is basically ensured to be cut once, for the large model of the thick coal seam, a transverse disrotatory cutting roller can be additionally arranged in front of the shovel plate 15 for cutting the coal wall floor in the middle, realize direct walking coal cutting

Example 2

Referring to fig. 4, 11-14, in embodiment 1, the onboard reverse flight conveyor 16 includes: a scraper chain lower chain groove 21, a scraper chain upper chain groove 22, a tail roller 24, a skylight 25, a head roller 26, a head frame 27, a scraper 28, a chain 29, a top plate 30, a middle plate 31, a slot edge 32 and a tail frame 33;

the chute slit 32, the middle plate 31 and the top plate 30 are welded to form a middle groove, a plurality of sections of middle grooves are connected in a butt joint mode to form a reverse scraper conveyor body, two ends of the reverse scraper conveyor body are connected with the headstock 27 and the tailstock 33, the headstock 27 is provided with the handpiece roller 26, the handpiece roller 26 is driven by a transmission part mainly comprising a hydraulic motor or a motor reducer, the tailstock 33 is provided with the tail roller 24, the airborne reverse scraper conveyor 16 is divided into the lower chain groove 21 and the upper chain groove 22 by taking the middle plate 31 as a boundary, the chain 29 is distributed in the lower chain groove 21 and the upper chain groove 22 of the scraper conveyor to form closed-loop operation through the redirection of the handpiece roller 26 and the tail roller 24, the chain 29 is additionally provided with one scraper 28 at certain intervals, the chain 29 and the scraper 28 are driven by the rotation power of the handpiece roller 26 to carry raw coal to a preset inclined coal chute, the scraper conveyor lower chain groove 21 is used for transporting raw coal, the scraper conveyor upper chain groove 22 runs empty chains, the scraper conveyor lower chain groove 22 is not provided with a sealing bottom plate, a coal wall is used as a bottom plate, the middle plate 31 is provided with a skylight 25 and used for overflowing the excessive raw coal to the scraper conveyor upper chain groove 22, the blockage is prevented, the overflowing raw coal is transported back to the skylight 25 at the back through a cochain and discharged downwards, and the peak regulation effect is achieved.

The working principle and the beneficial effects of the technical scheme are as follows: reverse open face scraper conveyors are a classic of the present invention and may be the first application since the advent of scraper conveyors. The reverse open type scraper conveyor as an airborne conveyor suspended at the bottom of the machine body can be aligned to one or two inclined coal sliding roadways at any time and anywhere, and the continuity of the transportation of the drum cutting coal and the raw coal is realized. The method doubles the production capacity in time. The secondary transportation equipment is reduced, the investment is saved, and the picking and cutting machine is more flexible. The open medium plate conveys the surplus raw coal that overflows the chute back through the cochain is reverse again to unload down, plays the peak regulation balancing act, effectively reduces the scraper conveyor floating phenomenon that bottom both sides overflowed the coal and brought simultaneously.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A thick coal seam HLG type series skiving machine is characterized by comprising:

the walking part comprises a frame and a crawler-type chassis;

the machine body is a plurality of equipment boxes which are fixed on the frame of the walking part and are assembled quickly;

the cutting part is connected with the front side of the machine body;

and the transportation part is connected with the chassis of the walking part.

2. The heavy coal seam HLG type series skiving machine of claim 1, wherein said walking portion further comprises: the chassis comprises a crawler (17) and a crawler chassis (18), and the frame comprises a frame cross beam (19) and a frame longitudinal beam (20) which are welded into a framework to form a platform for mounting a body equipment box body;

the frame and the chassis are fixedly connected by bolts to form an integral walking part.

3. The heavy coal seam HLG-type series skiving machine of claim 2, wherein said machine body comprises: cutting portion mounting bracket (7), the equipment box adopts split type equipment bolt fastening, a plurality of equipment boxes include driver's cabin (8), hydraulic pressure distribution cabinet (9), energy storage cabinet (10), hydraulic power unit (11), supply back liquid cabinet (12), the automatically controlled cabinet of power supply (13), just cutting portion mounting bracket (7), driver's cabin (8), hydraulic pressure distribution cabinet (9), energy storage cabinet (10), hydraulic power unit (11), supply back liquid cabinet (12), the automatically controlled cabinet of power supply (13) all are fixed in on the walking portion mounting platform.

4. The heavy coal seam HLG type series scraping machine according to claim 3, wherein the cab (8), the hydraulic distribution cabinet (9), the energy storage cabinet (10), the hydraulic pump station (11), the liquid supply and return cabinet (12) and the electric power supply control cabinet (13) are sequentially arranged from front to back according to different applicable coal seams or the arrangement mode is adjusted according to requirements of balance weight, section size of the machine body and the like.

5. The heavy coal seam HLG type series pick of claim 3, wherein said cutting section comprises: a long spiral roller (1), a cutting roller hydraulic motor or motor (2), a rocker arm (3), a rocker arm jack (4), a dovetail support and push-pull jack (5), a rocker arm and jack shaft (6) and a dovetail support jack (23);

the rear parts of the rocker arm (3) and the rocker arm jack (4) are hinged with the cutting part mounting rack (7) through the jack shaft (6), the rocker arm (3) is arranged above the rocker arm jack (4), the output end of the front part of the rocker arm jack (4) is hinged with the middle part of the rocker arm (3), a long spiral roller (1) is connected below the rocker arm (3), the middle part of the long spiral roller (1) is connected with the rocker arm (3) through a hydraulic motor or an electric motor (2) of the cutting roller, and the hydraulic motor or the motor (2) of the cutting drum is fixed at the front part of the rocker arm (3), a dovetail support jack (23) is fixed at the upper end of the cutting part mounting rack (7), the output end of the dovetail support jack (23) is connected with one end of the dovetail support or the push-pull jack (5), the dovetail support or the push-pull jack (5) is connected with the front part of the rocker arm (3) at the other end.

6. The heavy coal seam HLG type series skiving machine of claim 3, wherein said transport section comprises: a hanging suspension cable (14), a shovel plate (15) and an onboard reverse scraper conveyor (16);

the airborne reverse scraper transporter (16) is suspended in the middle of the bottom of the chassis, one end of the hanging suspension cable (14) is connected to the upper surface of the box body, the other end of the hanging suspension cable (14) is connected to the airborne reverse scraper transporter (16), the airborne reverse scraper transporter (16) is suspended on the walking part by adopting semi-rigid connection and is in close joint with a coal wall floor, and the shovel plate (15) is fixed at the front end of the frame.

7. The heavy coal seam HLG type series skiving machine according to claim 6, characterized in that said on-board reverse scraper conveyor (16) comprises: the automatic scraper chain cutting machine comprises a scraper chain lower chain groove (21), a scraper chain upper chain groove (22), a tail roller (24), a skylight (25), a head roller (26), a headstock (27), a scraper (28), a chain (29), a top plate (30), a middle plate (31), a groove edge (32) and a tail frame (33);

the machine head frame (27) is provided with a machine head roller (26), the machine head roller (26) is driven by a transmission part mainly comprising a hydraulic motor or a motor speed reducer, the tail frame (33) is provided with a machine tail roller (24), the airborne reverse scraper conveyer (16) is divided into a lower chain groove (21) and an upper chain groove (22) by taking the middle plate (31) as a boundary, the chain (29) is distributed in the lower chain groove (21) and the upper chain groove (22) of the scraper conveyer to form closed-loop operation through the redirection of the machine head roller (26) and the machine tail roller (24) to form closed-loop operation, and scrapers (28) are additionally arranged on the chain (29) at certain intervals, drive chain (29) and scraper blade (28) closed loop operation through aircraft nose cylinder (26) rotary power and transport predetermined swift current coal inclined drifts with raw coal, scrape trigger lower chain groove (21) and be used for transporting raw coal, scrape trigger upper chain groove (22) empty chain of walking, scrape trigger lower chain groove (21) and do not establish sealing plate to the coal wall is as the bottom plate, medium plate (31) are equipped with skylight (25) and are used for overflowing excessive raw coal to scrape trigger upper chain groove (22), prevent the card and die, and the raw coal that spills over unloads to skylight (25) at the back through cochain return, plays the peak regulation effect.

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