CN112112643B - Ultra-thin coal seam floor-climbing bridge coal mining machine - Google Patents
Ultra-thin coal seam floor-climbing bridge coal mining machine Download PDFInfo
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- CN112112643B CN112112643B CN202011037979.1A CN202011037979A CN112112643B CN 112112643 B CN112112643 B CN 112112643B CN 202011037979 A CN202011037979 A CN 202011037979A CN 112112643 B CN112112643 B CN 112112643B
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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
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
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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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Shovels (AREA)
- Harvesting Machines For Root Crops (AREA)
Abstract
The invention provides a floor-climbing and bridge-crossing coal mining machine for an extremely thin coal seam, wherein a main machine body (1), a left rocker arm (4) and a right rocker arm (9) are arranged between a conveyor (39) and a coal wall (29), the main machine body (1) and the conveyor (39) are arranged in parallel, a bridge crossing (21) and the main machine body (1) are connected into a rigid whole through a positioning pin (32), a high-strength screw rod (35) and a hydraulic nut (36), a guide sliding shoe (30), a coal wall side sliding shoe (33) at the bottom of the bridge crossing, an operation side sliding shoe (34) and a guide hook (37) jointly support the weight of the whole machine, and the left rocker arm (4) is hinged on the main machine body (1) through a left rotary point (5). The invention reduces the reaction force of the coal mining machine during working, reduces the float coal on the working surface during actual working, optimizes the stress state of the whole machine, greatly prolongs the service life of the driving part and the guiding part, and achieves the purposes of no damage to one working surface and no overhaul.
Description
Technical Field
The invention relates to a floor-climbing bridge coal mining machine for an extremely thin coal seam.
Background
The proportion of the ultra-thin coal seam below 0.8m in coal resources in China is large, and single pillars matched with a floor-climbing coal mining machine are mostly adopted in the working face of the ultra-thin coal seam in China for mining. The floor climbing coal mining machine adopts chain traction, and the cutting is not straight; the installed power is small, and the failure rate is high when the coal quality is hard or structured; the height of the spiral roller is not adjustable, the spiral roller has poor adaptability to the underground working surface of a coal mine, the underground working surface is matched with the single prop, the potential safety hazard is large, and the labor amount of workers is very large when supporting or moving the single prop. The coal loading effect of the bottom-climbing coal mining machine is poor, workers often need to shovel coal manually, the traction force of the bottom-climbing coal mining machine is insufficient when the bottom-climbing coal mining machine is applied to a work surface with a large inclination angle, and the high-yield and high-efficiency requirements of bidirectional coal cutting cannot be met.
Disclosure of Invention
The invention aims to provide a floor-climbing bridge coal mining machine for an extremely thin coal seam, which is suitable for fully mechanized mining of an extremely thin coal seam working face. The technical scheme of the invention is as follows: a bottom plate climbing gap bridge coal mining machine for an extremely thin coal seam, a main machine body (1), a left rocker arm (4) and a right rocker arm (9) are arranged between a conveyor (39) and a coal wall (29), the main machine body (1) and the conveyor (39) are arranged in parallel, a gap bridge (21) and the main machine body (1) are connected into a rigid whole through a positioning pin (32), a high-strength screw rod (35) and a hydraulic nut (36), a guide sliding shoe (30), a coal wall side sliding shoe (33) at the bottom of the gap bridge, an operation side sliding shoe (34) and a guide hook (37) support the weight of the whole machine together, the left rocker arm (4) is hinged on the main machine body (1) through a left rotary point (5), the right rocker arm (9) is hinged on the main machine body (1) through a right rotary point (8), a left fixing point (16) is arranged at the left lower part of the main machine body (1), and a left heightening oil cylinder (17) is hinged on the left fixing point (16), a left oil cylinder piston rod (18) is hinged with a left rocker arm through a left lifting point (19), the left oil cylinder piston rod (18) completes the lifting action of the left rocker arm (4) through stretching, a right fixed point (15) is arranged at the right lower part of a main machine body (1), a right heightening oil cylinder barrel (14) is hinged with the right fixed point (15), a right oil cylinder piston rod (13) is hinged with a right rocker arm (9) through a right lifting point (12), the right oil cylinder piston rod (13) completes the lifting action of the right rocker arm (9) through stretching, a sliding plate (23) under the main machine body (1) is contacted with a working face bottom plate (28), the sliding plate (23) slides on the bottom plate (28) to support the weight of the main machine body, a left roller (3) is arranged on the left rocker arm (4), a right roller (11) is arranged on the right rocker arm, the left roller (3) and the right roller (11) rotate to lift, a left traction driving point (24) and a right traction driving point (22) are arranged between the main machine body (1) and a bridge (21), a guide sliding shoe (30) and a walking wheel (31) are respectively installed on a left traction driving point (24) and a right traction driving point (22), the walking wheel (31) is meshed with a conveyor pin row (40), the walking wheel (31) rotates to complete coal cutter traction, the guide sliding shoe (30) is matched with the conveyor pin row (40), a guide hook (37) on the other side of a main machine body (1) is matched with a conveyor guide pipe (38) for limiting, the coal cutter is ensured to be dragged along the laying direction of the conveyor (39), a left guide point (6) is fixed to a gap bridge (21) through a left swinging point (26) to complete guide limiting, and a right guide point (7) is fixed to the gap bridge (21) through a right swinging point (27) to complete guide limiting.
The left traction motor (45) and the right traction motor (46) are installed in the middle of the main machine body (1), the left cutting motor (44) and the right cutting motor (47) are installed on two sides of the main machine body (1), all the motors are installed and fixed in the main machine body (1), the left traction motor (45) drives a left traction driving point (24) of the coal mining machine, the right traction motor (46) drives a right traction driving point (22) of the coal mining machine, the left cutting motor (44) drives a left drum (3), the right cutting motor (47) drives a right drum (11), the left cutting motor (44) is installed on the left side of the fixed main machine body (1), the left drum (3) is installed on a left lifting rocker arm (4), a left hollow articulated shaft (42) and a left transmission shaft (43) are arranged in the left rotary point (5), the right cutting motor (47) is installed on the right side of the fixed main machine body (1), and the right drum (11) is installed on a right lifting rocker arm (9), the right rotary point (8) is internally provided with a right hollow articulated shaft (48) and a right transmission shaft (49), and the right transmission shaft (49) needs to rotate to transmit the power of a motor.
The left end of the left rocker arm (4) is provided with a left shovel tip (2), a left coal plough plate (25) is arranged beside the left roller (3), the right end of the right rocker arm (9) is provided with a right shovel tip (10), and a right coal plough plate (20) is arranged beside the right roller (11).
The working principle of the invention is as follows:
the main machine body of the coal mining machine is of an integral long box structure and comprises a traction motor, a cutting motor, a traction driving point, an oil cylinder and the like, and the main machine body and the conveyor are arranged in parallel. The main machine is connected with the conveyor in a gap bridge connection mode, the gap bridge main body is provided with a guide hook which is matched with a guide pipe on the conveyor to realize the guide function when the whole machine walks on the scraper conveyor, the walking wheels on the coal mining machine main body are meshed with the pin rows of the scraper conveyor, and finally the walking function is realized through the rotation of the walking wheels. The height-adjusting oil cylinder stretches to complete the lifting action of the left rocker arm and the right rocker arm, and the rotary drum rotates to complete the coal falling and loading operation of the working surface.
The invention arranges a left traction driving point (24) and a right traction driving point (22) between a main machine body (1) and a gap bridge (21) and aims to reduce the moment arm length of a vertical distance L152 from a left force bearing point (41) to the left traction driving point (24) and a vertical distance L251 from a right force bearing point (50) to the right traction driving point (22) and reduce the reaction force when the coal mining machine works as much as possible.
When the coal mining machine is towed to the left to travel, the left shovel tip (2) and the left coal plough plate (25) enable the left rocker arm (4) to have one more coal shoveling and coal ploughing function, when the coal mining machine is towed to the right to travel, the right shovel tip (11) and the right coal plough plate (20) enable the right rocker arm (9) to have one more coal shoveling and coal ploughing function, and therefore float coal on a working face is reduced during actual work.
The beneficial effects of the invention are:
the height and length of the whole machine are superior to those of equipment for climbing a bottom plate, especially the traction driving point is arranged on the coal wall side of the conveyor, the stress state of the whole machine is optimized, the service lives of a driving part and a guiding part are greatly prolonged, and the purposes of no damage to a working surface and no overhaul are achieved. Provides reliable equipment for realizing mechanized mining of the ultra-thin coal seam. The fully-mechanized coal mining face is formed by matching the extremely-thin coal seam climbing bottom plate gap bridge coal mining machine, the scraper conveyor and the hydraulic support, the cutting and traction power of the whole machine is high, the height of the rocker arm is adjustable, operators can safely and effectively work under the hydraulic support, the rocker arm of the whole machine has the functions of coal shoveling and coal loading in the section, and the two-way coal cutting can be met when the angle of inclination is large. The potential safety hazard is eliminated, the working efficiency is improved, the labor intensity is reduced, and the machine is a preferred machine type of the working surface of the extremely thin coal seam.
The sliding plate (23) below the machine body is contacted with the bottom plate of the working face, so that the problem of the gravity center shift of the whole machine is solved. The height of the machine surface is reduced, the coal passing space is enlarged, and the installed power of the whole machine is increased.
The left traction motor (45), the right traction motor (46), the left cutting motor (44) and the right cutting motor (47) are installed in the main body (1), so that the weight is increased, and the work is stable. The distances between the left traction driving point (24) and the right traction driving point (22) and between the left guide point (6) and the right guide point (7) are short, and the device has good adaptability to a working surface with large fluctuation.
The main body of the coal mining machine is novel and unique in arrangement, the three-dimensional space is reasonably utilized, the height of the machine face is reduced, the coal passing space is enlarged, the installed power of the whole machine is increased, the power margin is sufficient, and the equipment is stable and reliable.
Drawings
FIG. 1 is a main view of a bottom-climbing bridge-crossing coal mining machine for ultra-thin coal seams
FIG. 2 is a top view of the ultra-thin coal seam floor-climbing bridge coal mining machine
FIG. 3 is a schematic view of the main body layout of the ultra-thin seam floor-climbing bridge coal mining machine of the invention
FIG. 4 is a schematic cross-sectional view of the bottom plate-climbing bridge-crossing coal mining machine for ultra-thin coal seams
Detailed Description
As shown in figure 1, the coal mining machine for the ultra-thin coal seam climbing a floor and passing a bridge is characterized in that a main machine body 1, a left rocker arm 4 and a right rocker arm 9 are arranged between a conveyor 39 and a coal wall 29, the main machine body 1 and the conveyor 39 are arranged in parallel, a bridge 21 and the main machine body 1 are connected into a rigid whole through a positioning pin 32, a high-strength screw 35 and a hydraulic nut 36, a guide sliding shoe 30, a coal wall side sliding shoe 33 at the bottom of the bridge, an operation side sliding shoe 34 and a guide hook 37 support the weight of the whole machine together, the left rocker arm 4 is hinged on the main machine body 1 through a left rotating point 5, the right rocker arm 9 is hinged on the main machine body 1 through a right rotating point 8, a left fixed point 16 is arranged at the lower left side of the main machine body 1, a left heightening cylinder barrel 17 is hinged on the left fixed point 16, a left oil cylinder piston rod 18 is hinged with the left rocker arm through a left lifting point 19, the left oil cylinder piston rod 18 completes the lifting action of the left rocker arm 4 through stretching, a right fixed point 15 is arranged at the lower part of the main machine body 1, a right fixed point 15 is hinged with a right heightening cylinder barrel 14, a right cylinder piston rod 13 is hinged with a right rocker arm 9 through a right lifting point 12, the right cylinder piston rod 13 finishes the lifting action of the right rocker arm 9 through stretching, a sliding plate 23 under the main body 1 is contacted with a working surface bottom plate 28, the sliding plate 23 is used for supporting the weight of the main body in a sliding way on the bottom plate 28, a left roller 3 is arranged on the left rocker arm 4, a right roller 11 is arranged on the right rocker arm, the left roller 3 and the right roller 11 are lifted in a rotating way, a left traction driving point 24 and a right traction driving point 22 are arranged between the main body 1 and a gap bridge 21, a guide sliding shoe 30 and a traveling wheel 31 are respectively arranged on the left traction driving point 24 and the right traction driving point 22, as shown in figure 4, the traveling wheel 31 is meshed with a conveyor pin row 40, the traction of the coal mining machine is finished through the rotation of the traveling wheel 31, the guide sliding shoe 30 is matched with the conveyor pin row 40, the other side guide hook 37 of the main body 1 is matched with a conveyor guide pipe 38 for limiting, the coal mining machine is ensured to be pulled along the laying direction of the conveyor 39, the left guide point 6 is fixed on the gap bridge 21 through the left swing point 26 to complete guide limiting, and the right guide point 7 is fixed on the gap bridge 21 through the right swing point 27 to complete guide limiting.
The extremely thin coal seam floor-climbing bridge shearer according to claim 1, as shown in fig. 3, is characterized in that: the main body 1 mid-mounting left traction motor 45 and right traction motor 46, left cut motor 44 and right cut motor 47 are installed in main body 1 both sides, all motors are all installed and fixed in main body 1, left traction motor 45 drives the left traction drive point 24 of coal-winning machine, right traction motor 46 drives the right traction drive point 22 of coal-winning machine, left cut motor 44 drives left drum 3, right cut motor 47 drives right drum 11, left cut motor 44 is installed in fixed main body 1 left side, left drum 3 is then installed on the left rocking arm 4 that goes up and down, there are left hollow articulated shaft 42 and left transmission shaft 43 inside left gyration point 5, right cut motor 47 is installed in fixed main body 1 right side, right drum 11 is then installed on the right rocking arm 9 that goes up and down, there are right hollow articulated shaft 48 and right transmission shaft 49 inside right gyration point 8, right transmission shaft 49 then needs gyration transmission motor power.
As shown in FIG. 2, the extremely thin coal seam floor-climbing bridge cut-off machine according to claim 1, wherein the left end of the left rocker arm 4 is provided with a left shovel tip 2, the left roller 3 is provided with a left coal plough plate 25 beside, the right end of the right rocker arm 9 is provided with a right shovel tip 10, and the right roller 11 is provided with a right coal plough plate 20 beside.
Claims (3)
1. The utility model provides a bottom plate coal-winning machine of passing a bridge is climbed to extremely thin coal seam, characterized by: a main machine body (1), a left rocker arm (4) and a right rocker arm (9) are arranged between a conveyor (39) and a coal wall (29), the main machine body (1) and the conveyor (39) are arranged in parallel, a gap bridge (21) and the main machine body (1) are connected into a rigid whole through a positioning pin (32), a high-strength screw rod (35) and a hydraulic nut (36), a guide sliding shoe (30), a coal wall side sliding shoe (33) at the bottom of the gap bridge, an operation side sliding shoe (34) and a guide hook (37) jointly support the weight of the whole machine, the left rocker arm (4) is hinged on the main machine body (1) through a left rotating point (5), the right rocker arm (9) is hinged on the main machine body (1) through a right rotating point (8), a left fixed point (16) is arranged at the lower left side of the main machine body (1), a left heightening cylinder barrel (17) is hinged with the left fixed point (16), a left cylinder piston rod (18) is hinged with the left rocker arm through a left lifting point (19), the left oil cylinder piston rod (18) completes the lifting action of a left rocker arm (4) through stretching, a right fixing point (15) is arranged at the right lower part of a main machine body (1), the right fixing point (15) is hinged with a right heightening oil cylinder barrel (14), a right oil cylinder piston rod (13) is hinged with a right rocker arm (9) through a right lifting point (12), the right oil cylinder piston rod (13) completes the lifting action of the right rocker arm (9) through stretching, a sliding plate (23) under the main machine body (1) is in contact with a working face bottom plate (28), the sliding plate (23) slides on the bottom plate (28) to support the weight of the main machine body, a left roller (3) is arranged on the left rocker arm (4), a right roller (11) is arranged on the right rocker arm, the left roller (3) and the right roller (11) rotate, a left traction driving point (24) and a right traction driving point (22) are arranged between the main machine body (1) and a bridge (21), and the left traction driving point (24) and the right traction driving point (22) are respectively provided with a guide sliding shoe (30) and a walking shoe (30) The wheel (31), walking wheel (31) and conveyer round pin are arranged (40) and are engaged, rotate through walking wheel (31), accomplish the coal cutter and pull, direction piston shoes (30) are supporting with conveyer round pin row (40), main fuselage (1) opposite side guide hook (37) and conveyer stand pipe (38) are supporting spacing, guarantee that the coal cutter pulls along the direction of laying of conveyer (39), left guide point (6) accomplish the direction spacing on fixed the gap bridge (21) through left swing point (26), right guide point (7) accomplish the direction spacing on fixed the gap bridge (21) through right swing point (27).
2. The bottom plate-climbing bridge shearer as claimed in claim 1, wherein: the left traction motor (45) and the right traction motor (46) are installed in the middle of the main machine body (1), the left cutting motor (44) and the right cutting motor (47) are installed on two sides of the main machine body (1), all the motors are installed and fixed in the main machine body (1), the left traction motor (45) drives a left traction driving point (24) of the coal mining machine, the right traction motor (46) drives a right traction driving point (22) of the coal mining machine, the left cutting motor (44) drives a left drum (3), the right cutting motor (47) drives a right drum (11), the left cutting motor (44) is installed on the left side of the fixed main machine body (1), the left drum (3) is installed on a left lifting rocker arm (4), a left hollow articulated shaft (42) and a left transmission shaft (43) are arranged in the left rotary point (5), the right cutting motor (47) is installed on the right side of the fixed main machine body (1), and the right drum (11) is installed on a right lifting rocker arm (9), the right rotary point (8) is internally provided with a right hollow articulated shaft (48) and a right transmission shaft (49), and the right transmission shaft (49) needs to rotate to transmit the power of a motor.
3. The bottom plate-climbing bridge shearer as claimed in claim 1, wherein: the left end of the left rocker arm (4) is provided with a left shovel tip (2), a left coal plough plate (25) is installed beside the left roller (3), the right end of the right rocker arm (9) is provided with a right shovel tip (10), and a right coal plough plate (20) is installed beside the right roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037979.1A CN112112643B (en) | 2020-09-28 | 2020-09-28 | Ultra-thin coal seam floor-climbing bridge coal mining machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037979.1A CN112112643B (en) | 2020-09-28 | 2020-09-28 | Ultra-thin coal seam floor-climbing bridge coal mining machine |
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| CN112112643A CN112112643A (en) | 2020-12-22 |
| CN112112643B true CN112112643B (en) | 2022-08-23 |
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| CN202011037979.1A Active CN112112643B (en) | 2020-09-28 | 2020-09-28 | Ultra-thin coal seam floor-climbing bridge coal mining machine |
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| CN112796754B (en) * | 2021-02-25 | 2025-02-14 | 天地上海采掘装备科技有限公司 | Ultra-thin coal seam mining machine body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202832528U (en) * | 2012-08-10 | 2013-03-27 | 江苏中机矿山设备有限公司 | Cantilever type electric traction coal cutter |
| CN102777173A (en) * | 2012-08-10 | 2012-11-14 | 江苏中机矿山设备有限公司 | Cantilever type electric traction coal cutter |
| CN102900436B (en) * | 2012-11-01 | 2014-10-29 | 中国矿业大学 | Cylinder stepping type thin seam coal mining machine |
| CN203189059U (en) * | 2013-01-22 | 2013-09-11 | 南京六合佳源矿山设备有限公司 | Coal wall side pin row seat structure for underground coal mine scraper conveyer middle trough |
| CN109441442B (en) * | 2018-11-29 | 2024-04-05 | 安徽省皖北煤电集团有限责任公司 | High-efficiency roller coal mining machine |
| CN111411955A (en) * | 2020-05-22 | 2020-07-14 | 天地科技股份有限公司上海分公司 | Guide traction system of short-span thin coal seam coal mining machine |
| CN111411951A (en) * | 2020-05-22 | 2020-07-14 | 天地科技股份有限公司上海分公司 | Thin coal seam short fuselage shearer |
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