CN110552698B - Short-fuselage thin-seam coal mining machine and cutting coal mining method - Google Patents
Short-fuselage thin-seam coal mining machine and cutting coal mining method Download PDFInfo
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- CN110552698B CN110552698B CN201910917392.0A CN201910917392A CN110552698B CN 110552698 B CN110552698 B CN 110552698B CN 201910917392 A CN201910917392 A CN 201910917392A CN 110552698 B CN110552698 B CN 110552698B
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- 239000003245 coal Substances 0.000 title claims abstract description 89
- 238000005065 mining Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 737
- 230000007246 mechanism Effects 0.000 claims abstract description 289
- 238000001816 cooling Methods 0.000 claims description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000003638 chemical reducing agent Substances 0.000 claims description 41
- 230000008878 coupling Effects 0.000 claims description 41
- 238000010168 coupling process Methods 0.000 claims description 41
- 238000005859 coupling reaction Methods 0.000 claims description 41
- 239000000498 cooling water Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 7
- 230000020347 spindle assembly Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/08—Mountings for the rods or drums
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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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- 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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a short-machine-body thin-seam coal mining machine and a cutting coal mining method, wherein the coal mining machine comprises a machine body shell, a first cutting rocker arm and a second cutting rocker arm, the first cutting rocker arm comprises a first rocker arm shell, a first cutting roller and a first transmission mechanism, the second cutting rocker arm comprises a second rocker arm shell, a second cutting roller and a second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are in transmission connection with an output shaft of a cutting motor; the cutting coal mining method comprises the following steps: 1. adjusting a short-frame thin coal seam coal mining machine; 2. cutting a thin coal seam; 3. repeating the first step and the second step for a plurality of times until the mining of the whole coal face is completed. The invention has reasonable design, reduces impact load influence borne by the cutting motor, realizes the driving of the rocker arms on two sides through split-flow transmission, greatly shortens the length of the coal mining machine and greatly improves the adaptability of the coal mining machine.
Description
Technical Field
The invention belongs to the technical field of coal mining machines, and particularly relates to a short-machine-body thin-seam coal mining machine and a cutting coal mining method.
Background
The reserves of the thin coal layer in China account for about 18 percent of the total reserves of the national coals, and because the thin coal layer is mostly positioned in the marginal zone of the coal field, the occurrence condition is complex, and the working face of the thin coal layer is mostly provided with geological structures such as faults, folds, undulation, gangue and the like; and because the mining height is more than 1.5m, the space is narrow, and the thin coal seam equipment is required to have higher strength and more flexible structure. In order to solve the problem that a rocker motor occupies too much coal passing opening below a rocker arm, the existing thin seam shearer is mainly provided with two cutting motors on one rocker arm, and the power of the two cutting motors is converged into a single rocker arm transmission system, so that the aim of improving cutting power is fulfilled. There are some problems:
1. the rocker arm with double motor arrangement is adopted, the power characteristics of each motor cannot be completely consistent due to manufacturing errors, the two motors are difficult to output completely synchronously in actual use, and the actual output power cannot reach the sum of the two powers.
2. The rocker arm with double motors is large in length, so that the whole length of the coal mining machine is too large, the coal mining machine is difficult to adapt to a thin coal seam working surface with large fluctuation and complex conditions, and the adaptability of the coal mining machine is poor.
3. The rocker arms with double motor arrangement are adopted, the number of the whole machine cutting motors is up to 4, the overall reliability of a cutting system is reduced, the maintenance work is increased, and the capacity of a high-yield and high-efficiency low seam coal mining working face is greatly limited. Therefore, a short-machine-body thin-seam coal mining machine with a simple structure and reasonable design and a cutting coal mining method are lacking at present, a cutting motor is placed in a machine body shell and does not swing along with a rocker arm, the impact load influence born by the cutting motor is reduced, the driving of two-side rocker arms is realized through split-flow transmission, the length of the coal mining machine is greatly shortened, and the adaptability of the coal mining machine is greatly improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the short-body thin-seam coal mining machine, which is reasonable in design, the cutting motor is placed in the machine body shell and does not swing along with the rocker arm, the impact load influence born by the cutting motor is reduced, the driving of the rocker arms on two sides is realized through split-flow transmission, the length of the coal mining machine is greatly shortened, and the adaptability of the coal mining machine is greatly improved.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a short fuselage thin seam coal-winning machine which characterized in that: the cutting machine comprises a machine body shell, a first cutting rocker arm arranged at one end of the machine body shell and a second cutting rocker arm arranged at the other end of the machine body shell, wherein the first cutting rocker arm comprises a first rocker arm shell, a first cutting roller arranged at the end part of the first rocker arm shell and a first transmission mechanism which is in transmission connection with a cutting motor and drives the first cutting rocker arm to rotate, the second cutting rocker arm comprises a second rocker arm shell, a second cutting roller arranged at the end part of the second rocker arm shell and a second transmission mechanism which is in transmission connection with the cutting motor and drives the second cutting rocker arm to rotate, the first transmission mechanism comprises a first left rocker arm transmission part, a first coupler assembly and a second left rocker arm transmission part which are in transmission connection in sequence, the first left rocker arm transmission part is in transmission connection with an output shaft of the cutting motor, the second left rocker arm transmission part is in transmission connection with the first cutting roller, the second coupler assembly and the second right rocker arm transmission part are in transmission connection with the first cutting roller in sequence, and the first rocker arm transmission part is in transmission connection with the second rocker arm transmission part; the machine body shell is provided with a first push-pull oil cylinder connected with the first rocker arm shell and a second push-pull oil cylinder connected with the second rocker arm shell; the cutting machine is characterized in that first cooling mechanisms are arranged in the first cutting roller and the second cutting roller, second cooling mechanisms and water supply components for supplying low-temperature water to the first cooling mechanisms and the second cooling mechanisms are arranged in the first rocker arm shell and the second rocker arm shell, and a plurality of rocker arm outer spray heads are arranged on the first rocker arm shell and the second rocker arm shell.
The above-mentioned short fuselage thin seam coal-winning machine, its characterized in that: the first left rocker arm transmission part comprises a first left cutting transmission mechanism, a second left cutting transmission mechanism, a third left cutting transmission mechanism, a fourth left cutting transmission mechanism and a fifth left cutting transmission mechanism which are sequentially connected in a transmission manner; the second left rocker arm transmission part comprises a first left rocker arm transmission mechanism, a second left rocker arm transmission mechanism, a third left rocker arm transmission mechanism, a fourth left rocker arm transmission mechanism and a fifth left rocker arm transmission mechanism which are sequentially connected in a transmission way, wherein the first left cutting transmission mechanism is in transmission connection with a cutting motor, the fifth left cutting transmission mechanism is in transmission connection with one end of a first coupling component, the first left rocker arm transmission mechanism is in transmission connection with the other end of the first coupling component, and the fifth left rocker arm transmission mechanism is in transmission connection with a first cutting roller;
the first right rocker arm transmission part comprises a first right cutting transmission mechanism, a second right cutting transmission mechanism, a third right cutting transmission mechanism, a fourth right cutting transmission mechanism, a fifth right cutting transmission mechanism and a sixth right cutting transmission mechanism which are sequentially connected in a transmission manner; the second right rocker arm transmission part comprises a first right rocker arm transmission mechanism, a second right rocker arm transmission mechanism, a third right rocker arm transmission mechanism, a fourth right rocker arm transmission mechanism and a fifth right rocker arm transmission mechanism which are sequentially connected in a transmission mode, wherein the first right cutting transmission mechanism is in transmission connection with a cutting motor, the sixth right cutting transmission mechanism is in transmission connection with one end of a second coupling assembly, the first right rocker arm transmission mechanism is in transmission connection with the other end of the second coupling assembly, and the fifth right rocker arm transmission mechanism is in transmission connection with a second cutting roller.
The above-mentioned short fuselage thin seam coal-winning machine, its characterized in that: the output shaft of the cutting motor is in transmission connection with a transmission shaft, one end of the transmission shaft, which is far away from the output shaft of the cutting motor, is provided with a synchronous shaft, and the synchronous shaft is provided with a synchronous gear;
the first left cutting transmission mechanism comprises a first left cutting transmission shaft and a first left cutting transmission gear arranged on the first left cutting transmission shaft, the second left cutting transmission mechanism comprises a first left idler shaft arranged in the machine body shell and a second left cutting transmission gear sleeved on the first left idler shaft, the third left cutting transmission mechanism comprises a second left idler shaft arranged in the machine body shell and a third left cutting transmission gear sleeved on the second left idler shaft, the fourth left cutting transmission mechanism comprises a third left idler shaft arranged in the machine body shell and a fourth left cutting transmission gear sleeved on the third left idler shaft, and the fifth left cutting transmission mechanism comprises a second left cutting transmission shaft and a fifth left cutting transmission gear sleeved on the second left cutting transmission shaft;
the first right cutting transmission mechanism comprises a first right cutting transmission shaft and a first right cutting transmission gear arranged on the first right cutting transmission shaft, the second right cutting transmission mechanism comprises a first right idler shaft arranged in the machine body shell and a second right cutting transmission gear sleeved on the first right idler shaft, the third right cutting transmission mechanism comprises a second right idler shaft arranged in the machine body shell and a third right cutting transmission gear sleeved on the second right idler shaft, the fourth right cutting transmission mechanism comprises a third right idler shaft arranged in the machine body shell and a fourth right cutting transmission gear sleeved on the third right idler shaft, the fifth right cutting transmission mechanism comprises a fourth right idler shaft arranged in the machine body shell and a fifth right cutting transmission gear sleeved on the fourth right idler shaft, the sixth right cutting transmission mechanism comprises a second right cutting transmission shaft and a sixth right cutting transmission gear sleeved on the second right transmission shaft, the first right cutting transmission gear and the second right cutting transmission shaft are connected with the first right cutting transmission shaft and the second right cutting transmission shaft, and the first right cutting transmission mechanism is connected with the second right cutting transmission shaft;
The first left cutting transmission gear, the second left cutting transmission gear, the third left cutting transmission gear, the fourth left cutting transmission gear and the fifth cutting transmission gear are sequentially in meshed connection, and the first right cutting transmission gear, the second right cutting transmission gear, the third right cutting transmission gear, the fourth right cutting transmission gear, the fifth cutting transmission gear and the sixth cutting transmission gear are sequentially in meshed connection.
The above-mentioned short fuselage thin seam coal-winning machine, its characterized in that: the first coupling assembly and the second coupling assembly are identical in structure, and each of the first coupling assembly and the second coupling assembly comprises a driving shaft and a driven shaft fixedly connected with the driving shaft.
The above-mentioned short fuselage thin seam coal-winning machine, its characterized in that: the first left rocker arm transmission mechanism comprises a first left rocker arm transmission shaft and a first left rocker arm transmission gear sleeved on the first left rocker arm transmission shaft, the second left rocker arm transmission mechanism comprises a first left rocker arm idler shaft and a second left rocker arm transmission gear sleeved on the first left rocker arm idler shaft, the third left rocker arm transmission mechanism comprises a second left rocker arm transmission shaft, a third left front rocker arm transmission gear sleeved on the second left rocker arm transmission shaft and a third left rear rocker arm transmission gear, the third left front rocker arm transmission gear is in meshed transmission connection with the second left rocker arm transmission gear, the fourth left rocker arm transmission mechanism comprises a second left rocker arm idler shaft and a fourth left rocker arm transmission gear sleeved on the second left rocker arm idler shaft, the fifth left rocker arm transmission mechanism comprises a third left rocker arm transmission shaft and a fifth left rocker arm transmission gear sleeved on the third left rocker arm transmission shaft, the first left rocker arm transmission gear is in meshed connection with the second left rocker arm transmission gear, and the third left rear rocker arm transmission gear is in meshed connection with the fifth left transmission gear in sequence;
The first right rocker arm transmission mechanism comprises a first right rocker arm transmission shaft and a first right rocker arm transmission gear sleeved on the first right rocker arm transmission shaft, the second right rocker arm transmission mechanism comprises a first right rocker arm idler shaft and a second right rocker arm transmission gear sleeved on the first right rocker arm idler shaft, the third right rocker arm transmission mechanism comprises a second right rocker arm transmission shaft, a third right front rocker arm transmission gear and a third right rear rocker arm transmission gear sleeved on the second right rocker arm transmission shaft, the third right front rocker arm transmission gear is in meshed transmission connection with the second right rocker arm transmission gear, the third right rear rocker arm transmission gear and the second right rocker arm transmission shaft are integrally formed, the fourth right rocker arm transmission mechanism comprises a second right rocker arm idler shaft and a fourth right rocker arm transmission gear sleeved on the second right rocker arm idler shaft, the fifth right rocker arm transmission mechanism comprises a third right rocker arm transmission shaft and a fifth right rocker arm transmission gear sleeved on the third right rocker arm transmission shaft, the first right rocker arm transmission gear and the second right rocker arm transmission gear are in meshed connection, and the third right rocker arm transmission gear and the fifth right rocker arm transmission gear are sequentially meshed with the fourth rocker arm transmission gear.
The above-mentioned short fuselage thin seam coal-winning machine, its characterized in that: the cutting machine is characterized in that a first speed reducing mechanism is arranged in the first cutting roller and comprises a first-stage left planetary reducer and a second-stage left planetary reducer which are sequentially connected with the output end of a second left rocker arm transmission part in a transmission mode, and a second speed reducing mechanism is arranged in the second cutting roller and comprises a first-stage right planetary reducer and a second-stage right planetary reducer which are sequentially connected with the output end of a second right rocker arm transmission part in a transmission mode.
Meanwhile, the invention also discloses a method for cutting and mining the thin coal seam by using the short-machine-body thin coal seam mining machine, which is simple in steps and reasonable in design, and is characterized by comprising the following steps:
step one, adjusting a short-machine-body thin-seam coal mining machine:
moving the short-body thin-seam coal mining machine to a coal mining working face, adjusting a first cutting rocker arm to the coal mining height through a first push-pull oil cylinder, and simultaneously, adjusting a second cutting rocker arm to the coal mining height through a second push-pull oil cylinder;
cutting the thin coal seam:
step 201, operating a cutting motor to rotate, wherein the cutting motor rotates to sequentially drive a first left cutting transmission mechanism, a second left cutting transmission mechanism, a third left cutting transmission mechanism, a fourth left cutting transmission mechanism and a fifth left cutting transmission mechanism in a first left rocker arm transmission part to rotate, and simultaneously drives a first right cutting transmission mechanism, a second right cutting transmission mechanism, a third right cutting transmission mechanism, a fourth right cutting transmission mechanism, a fifth right cutting transmission mechanism and a sixth right cutting transmission mechanism in a first right rocker arm transmission part to rotate;
202, the fifth left cutting transmission mechanism rotates to drive the first coupler assembly to rotate, and the sixth right cutting transmission mechanism rotates to drive the second coupler assembly to rotate,
step 203, the rotation of the first coupling component drives the first left rocker arm transmission mechanism, the second left rocker arm transmission mechanism, the third left rocker arm transmission mechanism, the fourth left rocker arm transmission mechanism and the fifth left rocker arm transmission mechanism to rotate in sequence, and simultaneously, the rotation of the second coupling component drives the first right rocker arm transmission mechanism, the second right rocker arm transmission mechanism, the third right rocker arm transmission mechanism, the fourth right rocker arm transmission mechanism and the fifth right rocker arm transmission mechanism to rotate in sequence;
204, driving a first cutting roller to rotate through a first-stage left planetary reducer and a second-stage left planetary reducer by rotation of a fifth left rocker arm transmission mechanism, and simultaneously driving a second cutting roller to rotate through a first-stage right planetary reducer and a second-stage right planetary reducer by rotation of a fifth right rocker arm transmission mechanism, so as to cut coal on a thin coal seam and realize cutting of the thin coal seam;
and thirdly, repeating the first step and the second step for a plurality of times until the mining of the whole coal face is completed.
The method is characterized in that: a first cooling mechanism is arranged in each of the first cutting roller and the second cutting roller, a second cooling mechanism and a water supply part for supplying low-temperature water to the first cooling mechanism and the second cooling mechanism are arranged in each of the first rocker arm shell and the second rocker arm shell, and a plurality of rocker arm outer spray heads are arranged on each of the first rocker arm shell and the second rocker arm shell;
The second cooling mechanism comprises an upper cooling mechanism and a lower cooling mechanism, the structures of the upper cooling mechanism and the lower cooling mechanism are the same, the upper cooling mechanism and the lower cooling mechanism comprise a mounting seat arranged on a gear box, a mounting shaft clamped between the mounting seat and the gear box and a cooling coiled pipe sleeved on the mounting shaft, an inlet of the cooling coiled pipe is connected with the water supply part, and an outlet of the cooling coiled pipe is communicated with the rocker arm outer spray head through a hose;
the first cooling mechanism comprises a cooling water pipe penetrating through the first cutting roller and the second cutting roller, an inlet of the cooling water pipe is connected with the water supply part, and an outlet of the cooling water pipe is connected with a cooling interface of the cutting roller.
The method is characterized in that: the water supply part comprises a water supply main pipe arranged in the first rocker arm shell, a water distributor connected with the water supply main pipe, and a first joint seat, a second joint seat and a third joint seat which are communicated with the water distributor;
the inlet of the water distributor is connected with the water supply main pipe, three water pipes are arranged on the water distributor, throttling screws are arranged on each water pipe, the first joint seat is connected with the inlet of the cooling coiled pipe in the upper cooling mechanism through a hose, the third joint seat is connected with the inlet of the cooling coiled pipe in the lower cooling mechanism through a hose, and the second joint seat is communicated with the cooling water pipe through a hose.
The method is characterized in that: in the process of cutting coal on a thin coal layer by rotating the first cutting roller and the second cutting roller, the specific cooling process is as follows:
the low-temperature water provided by the water supply part enters the cooling coiled pipe, so that the upper cooling mechanism and the lower cooling mechanism cool the second left rocker arm transmission part in the first rocker arm shell and the second right rocker arm transmission part in the second rocker arm shell, and spray dust is removed through the rocker arm outer spray head;
meanwhile, the low-temperature water provided by the water supply component cools the first cutting roller and the second cutting roller through the cooling water pipe.
Compared with the prior art, the invention has the following advantages:
1. the short-machine-body thin seam coal mining machine adopted by the invention has the advantages of simple structure, reasonable design and small volume.
2. The short-machine-body thin-seam coal mining machine has the advantages that the high-power cutting motor is arranged in the machine body shell of the coal mining machine, the first rocker arm and the second rocker arm are not provided with the cutting motor, the length of the rocker arm is greatly shortened, the overall rigidity of the rocker arm is improved, the cutting motor is placed in the machine body shell and does not swing along with the rocker arm, and the impact load influence of the cutting motor is reduced.
3. The adopted transmission system comprises a first transmission mechanism and a second transmission mechanism, the driving of the first cutting rocker arm and the second cutting rocker arm is realized by using the split-flow transmission system, and a split-flow mode of gear transmission is adopted, so that the transmission device has the advantages of strong bearing capacity, reliable transmission and high transmission efficiency.
4. According to the invention, the distance between the rotation centers of the first cutting rocker arm and the second cutting rocker arm is only 2185mm, when the first cutting rocker arm and the first cutting rocker arm are in a horizontal state, the rotation center distance of the first cutting roller and the second cutting roller is only 3925mm, however, the center distance of the two cutting rollers at present is generally about 6000mm, the length of the rocker arm is greatly shortened, the whole length of the coal mining machine is greatly reduced, and the adaptability of the coal mining machine to complex geological conditions of a thin coal seam is remarkably improved.
5. The invention reduces the structure of driving the first cutting rocker arm and the second cutting rocker arm respectively by 4 cutting motors to one cutting motor arranged in the machine body shell, solves the problem of small coal passing port below the rocker arm of the thin seam shearer, reduces fault points, is easy to maintain and improves the reliability of the whole machine.
6. According to the invention, the transmission shaft is connected at the hinge joint of the rocker arm and the body shell by adopting the coupler assembly, so that the problem of processing coaxiality of the rocker arm ear seat and the body ear seat of the main machine is effectively solved, the length of the transmission shaft is shortened, and the disassembly and assembly are convenient; in addition, the structure is compact, and the transmission precision and the bearing capacity are ensured.
In summary, the invention has reasonable design, the cutting motor is placed in the machine body shell and does not swing along with the rocker arm, the impact load influence born by the cutting motor is reduced, the driving of the rocker arms on two sides is realized through split-flow transmission, the length of the coal mining machine is greatly shortened, and the adaptability of the coal mining machine is greatly improved.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a short-fuselage thin seam shearer of the present invention.
Fig. 2 is a schematic structural view of a short-body thin seam shearer cutting motor, a first transmission mechanism and a second transmission mechanism of the invention.
FIG. 3 is a schematic structural view of a first cutting rocker arm of the short-body low seam shearer of the present invention.
FIG. 4 is a schematic structural view of a water supply unit of a short-body thin seam shearer of the present invention.
Fig. 5 is a top view of fig. 3 with the first ear mount removed.
FIG. 6 is a schematic structural view of an upper cooling mechanism and a lower cooling mechanism of the short-body thin seam shearer of the present invention.
FIG. 7 is a flow chart of a method of cutting coal of the short-fuselage low seam shearer of the present invention.
Reference numerals illustrate:
1-a cutting motor; 2-a first left rocker arm transmission member;
2-1, a first left cutting transmission shaft; 2-1-a first left cutting drive gear; 2-a first left idler shaft; 2-2-1-a second left cutting drive gear; 2-3-a second left idler shaft; 2-3-1-a third left cutting drive gear; 2-4 to a third left idler shaft; 2-4-1-fourth left cutting drive gear; 2-5-a second left cutting drive shaft; 2-5-1-fifth left cutting drive gear; 3-a first coupling assembly; 3-1-a driving shaft; 3-2-driven shaft; 4-a second left rocker arm transmission member; 4-1-a first left rocker arm drive shaft; 4-1-a first left rocker arm drive gear; 4-2-a first left rocker arm idler shaft; 4-2-1-a second left rocker arm drive gear; 4-3-a second left rocker arm drive shaft; 4-3-1-third left front rocker arm drive gear 4-3-2-third left rear rocker arm drive gear; 4-a second left rocker arm idler shaft; 4-4-1-fourth left rocker arm drive gear; 4-5-a third left rocker arm drive shaft; 4-5-1-fifth left rocker arm drive gear; 5-a first right rocker arm transmission member; 5-1-a first right cutting drive shaft; 5-1-a first right cutting drive gear; 5-2-a first right idler shaft;
5-2-1-a second right cutting drive gear; 5-3-a second right idler shaft;
5-3-1-third right cutting drive gear; 5-4 to a third right idler shaft;
5-4-1-fourth right cutting drive gear; 5-5 to a fourth right idler shaft;
5-5-1-a fifth right cutting drive gear; 5-6, a second right cutting transmission shaft;
5-6-1-sixth right cutting drive gear; 6-a second coupling assembly;
7-a second right rocker arm transmission member; 7-1, a first right rocker arm transmission shaft;
7-2-a first right rocker arm idler shaft; 7-3-a second right rocker arm drive shaft;
7-4, a second right rocker arm idler shaft; 7-5-a third right rocker arm drive shaft; 8-a transmission shaft; 9-synchronizing shaft; 10-synchronizing gears; 12-1, a first stage left planetary reducer; 12-2-a first-stage right planetary reducer; 13-1-a second stage left planetary reducer; 13-2-a second-stage right planetary reducer;
14-cooling water pipe; 15-1—a first cutting drum; 15-2-a second cutting drum; 16-1-a first rocker arm housing; 16-1-a first rocker arm housing ear mount;
16-1-2-a second rocker arm housing ear mount; 16-2-a second rocker arm housing;
16-2-1-a third rocker arm housing ear mount; 16-2-fourth rocker arm shell ear seat
17-1-a first ear mount; 17-2-a second ear mount;
18-1, a first push-pull oil cylinder; 18-2, a second push-pull oil cylinder; 19-a fuselage housing;
19-1-a first housing ear mount; 19-2-a second housing ear mount; 19-3-a third housing ear mount;
19-4 to a fourth shell ear seat; 19-5-fifth shell ear seat; 19-6-a sixth shell ear seat; 20-a rocker arm outer spray head; 21-1-upper cooling mechanism; 21-1-1-mounting seats;
21-1-2-mounting shaft; 21-1-3-cooling coils; 21-2-a lower cooling mechanism;
23-a water supply main pipe; 24-a water separator;
25-throttle screw; 26-1-a first joint seat; 26-2-a second connector base;
26-3-a third joint seat; 27-a central waterway seat.
Detailed Description
As shown in fig. 1, 2, 3 and 5, the invention comprises a machine body shell 19, a first cutting rocker arm arranged at one end of the machine body shell 19 and a second cutting rocker arm arranged at the other end of the machine body shell 19, wherein the first cutting rocker arm comprises a first rocker arm shell 16-1, a first cutting roller 15-1 arranged at the end part of the first rocker arm shell 16-1 and a first transmission mechanism which is in transmission connection with the cutting motor 1 and drives the first cutting rocker arm to rotate, the second cutting rocker arm comprises a second rocker arm shell 16-2, a second cutting roller 15-2 arranged at the end part of the second rocker arm shell 16-2 and a second transmission mechanism which is in transmission connection with the cutting motor 1 and drives the second cutting rocker arm to rotate, the first transmission mechanism comprises a first left rocker arm transmission part 2, a first coupling component 3 and a second left rocker arm transmission part 4 which are in transmission connection in turn, the first left rocker arm transmission part 2 is in transmission connection with an output shaft of the cutting motor 1, the second left rocker arm transmission part 4 is in transmission connection with the second cutting roller 15-1 and a second transmission component 7, and a second rocker arm transmission component 7 which is in transmission connection with the second transmission component 7 is in transmission connection with the second left and right transmission component 7; the body shell 19 is provided with a first push-pull oil cylinder 18-1 connected with the first rocker arm shell 16-1 and a second push-pull oil cylinder 18-2 connected with the second rocker arm shell 16-2; the first cutting drum 15-1 and the second cutting drum 15-2 are respectively provided with a first cooling mechanism, the first rocker arm casing 16-1 and the second rocker arm casing 16-2 are respectively provided with a second cooling mechanism and a water supply part for supplying low-temperature water to the first cooling mechanism and the second cooling mechanism, and the first rocker arm casing 16-1 and the second rocker arm casing 16-2 are respectively provided with a plurality of rocker arm external spray heads 20.
In this embodiment, the first left rocker arm transmission component 2 includes a first left cutting transmission mechanism, a second left cutting transmission mechanism, a third left cutting transmission mechanism, a fourth left cutting transmission mechanism and a fifth left cutting transmission mechanism that are sequentially connected in a transmission manner; the second left rocker arm transmission part 4 comprises a first left rocker arm transmission mechanism, a second left rocker arm transmission mechanism, a third left rocker arm transmission mechanism, a fourth left rocker arm transmission mechanism and a fifth left rocker arm transmission mechanism which are sequentially connected in a transmission way, wherein the first left cutting transmission mechanism is in transmission connection with the cutting motor 1, the fifth left cutting transmission mechanism is in transmission connection with one end of the first coupler assembly 3, the first left rocker arm transmission mechanism is in transmission connection with the other end of the first coupler assembly 3, and the fifth left rocker arm transmission mechanism is in transmission connection with the first cutting roller 15-1;
the first right rocker arm transmission part 5 comprises a first right cutting transmission mechanism, a second right cutting transmission mechanism, a third right cutting transmission mechanism, a fourth right cutting transmission mechanism, a fifth right cutting transmission mechanism and a sixth right cutting transmission mechanism which are sequentially connected in a transmission manner; the second right rocker arm transmission part 7 comprises a first right rocker arm transmission mechanism, a second right rocker arm transmission mechanism, a third right rocker arm transmission mechanism, a fourth right rocker arm transmission mechanism and a fifth right rocker arm transmission mechanism which are sequentially connected in a transmission mode, wherein the first right cutting transmission mechanism is in transmission connection with the cutting motor 1, the sixth right cutting transmission mechanism is in transmission connection with one end of the second spindle assembly 6, the first right rocker arm transmission mechanism is in transmission connection with the other end of the second spindle assembly 6, and the fifth right rocker arm transmission mechanism is in transmission connection with the second cutting roller 15-2.
As shown in fig. 2, in this embodiment, a transmission shaft 8 is drivingly connected to an output shaft of the cutting motor 1, one end of the transmission shaft 8 away from the output shaft of the cutting motor 1 is provided with a synchronizing shaft 9, and the synchronizing shaft 9 is provided with a synchronizing gear 10;
the first left cutting transmission mechanism comprises a first left cutting transmission shaft 2-1 and a first left cutting transmission gear 2-1-1 arranged on the first left cutting transmission shaft 2-1, the second left cutting transmission mechanism comprises a first left idler shaft 2-2 arranged in the machine body shell 19 and a second left cutting transmission gear 2-2-1 sleeved on the first left idler shaft 2-2, the third left cutting transmission mechanism comprises a second left idler shaft 2-3 arranged in the machine body shell 19 and a third left cutting transmission gear 2-3-1 sleeved on the second left idler shaft 2-3, the fourth left cutting transmission mechanism comprises a third left idler shaft 2-4 arranged in the machine body shell 19 and a fourth left cutting transmission gear 2-4-1 sleeved on the third left idler shaft 2-4, and the fifth left cutting transmission mechanism comprises a second left cutting transmission shaft 2-5 and a fifth left cutting transmission gear 2-5 sleeved on the second left cutting transmission shaft 2-5;
the first right cutting transmission mechanism comprises a first right cutting transmission shaft 5-1 and a first right cutting transmission gear 5-1-1 arranged on the first right cutting transmission shaft 5-1, the second right cutting transmission mechanism comprises a first right cutting transmission gear 5-2 arranged in the machine body shell 19 and a second right cutting transmission gear 5-2-1 sleeved on the first right cutting transmission shaft 5-2, the third right cutting transmission mechanism comprises a second right cutting transmission shaft 5-3 arranged in the machine body shell 19 and a third right cutting transmission gear 5-3-1 sleeved on the second right cutting transmission shaft 5-3, the fourth right cutting transmission mechanism comprises a third right cutting transmission gear 5-4 arranged in the machine body shell 19 and a fourth right cutting transmission gear 5-4-1 sleeved on the third right cutting transmission gear 5-4, the fifth right cutting transmission mechanism comprises a fourth right cutting transmission gear 5-5 arranged in the machine body shell 19 and a fourth cutting transmission gear 5-1 sleeved on the fourth cutting transmission shaft 5-5-1, the fifth cutting transmission mechanism is synchronously engaged with the first right cutting transmission shaft 5-1 and the second cutting transmission shaft 5-1, the fourth right cutting transmission gear is meshed with the first right cutting transmission gear 5-1-5-6, the fourth cutting transmission mechanism comprises a sixth cutting transmission gear 5-1-6 arranged on the second right cutting transmission shaft 5-1-5-1, the second right cutting transmission shaft 5-6 is in transmission connection with the second coupler assembly 6;
The first left cutting transmission gear 2-1-1, the second left cutting transmission gear 2-2-1, the third left cutting transmission gear 2-3-1, the fourth left cutting transmission gear 2-4-1 and the fifth cutting transmission gear are sequentially in meshed connection, and the first right cutting transmission gear 5-1-1, the second right cutting transmission gear 5-2-1, the third right cutting transmission gear 5-3-1, the fourth right cutting transmission gear 5-4-1, the fifth cutting transmission gear and the sixth cutting transmission gear are sequentially in meshed connection.
In this embodiment, as shown in fig. 2, the first coupling assembly 3 and the second coupling assembly 6 have the same structure, and the first coupling assembly 3 and the second coupling assembly 6 each include a driving shaft 3-1 and a driven shaft 3-2 fixedly connected to the driving shaft 3-1.
In this embodiment, as shown in fig. 2, the first left rocker arm transmission mechanism includes a first left rocker arm transmission shaft 4-1 and a first left rocker arm transmission gear 4-1-1 sleeved on the first left rocker arm transmission shaft 4-1, the second left rocker arm transmission mechanism includes a first left rocker arm idler shaft 4-2 and a second left rocker arm transmission gear 4-2-1 sleeved on the first left rocker arm idler shaft 4-2, the third left rocker arm transmission mechanism includes a second left rocker arm transmission shaft 4-3, a third left front rocker arm transmission gear 4-3-1 sleeved on the second left rocker arm transmission shaft 4-3 and a third left rear rocker arm transmission gear 4-3-2, the third left front rocker arm transmission gear 4-3-1 is in meshed transmission connection with the second left rocker arm transmission gear 4-2-1, the fourth left rocker arm transmission mechanism includes a second left rocker arm idler shaft 4-4 and a fourth left rocker arm transmission gear 4-1 sleeved on the second left rocker arm idler shaft 4-4, the fifth left rocker arm transmission mechanism includes a third left rocker arm transmission gear 4-5-1 and a fifth left rocker arm transmission gear 4-5 meshed with the third left rocker arm transmission gear 4-1-4-1, and the fifth rocker arm transmission gear 4-5 is in turn connected with the third left rocker arm transmission gear 4-4-1;
The first right rocker arm transmission mechanism comprises a first right rocker arm transmission shaft 7-1 and a first right rocker arm transmission gear sleeved on the first right rocker arm transmission shaft 7-1, the second right rocker arm transmission mechanism comprises a first right rocker arm idler shaft 7-2 and a second right rocker arm transmission gear sleeved on the first right rocker arm idler shaft 7-2, the third right rocker arm transmission mechanism comprises a second right rocker arm transmission shaft 7-3, a third right front rocker arm transmission gear sleeved on the second right rocker arm transmission shaft 7-3 and a third right rear rocker arm transmission gear, the third right front rocker arm transmission gear is in meshed transmission connection with the second right rocker arm transmission gear, the third right rear rocker arm transmission gear and the second right rocker arm transmission shaft 7-3 are integrally formed, the fourth right rocker arm transmission mechanism comprises a second right rocker arm idler shaft 7-4 and a fourth right rocker arm transmission gear sleeved on the second right rocker arm idler shaft 7-4, the fifth right rocker arm transmission mechanism comprises a third right rocker arm transmission shaft 7-5 and a fifth right rocker arm transmission gear sleeved on the third right rocker arm transmission shaft 7-5, and a fifth right rocker arm transmission gear is sequentially meshed with the third right rocker arm transmission gear, and the fifth rocker arm transmission gear is sequentially connected with the third right rocker arm transmission gear.
As shown in fig. 2, in this embodiment, a first speed reducing mechanism is disposed in the first cutting drum 15-1, the first speed reducing mechanism includes a first stage left planetary reducer 12-1 and a second stage left planetary reducer 13-1 that are sequentially connected with the output end of the second left rocker arm transmission member 4 in a transmission manner, and a second speed reducing mechanism is disposed in the second cutting drum 15-2, and the second speed reducing mechanism includes a first stage right planetary reducer 12-2 and a second stage right planetary reducer 13-2 that are sequentially connected with the output end of the second right rocker arm transmission member 7 in a transmission manner.
In this embodiment, the first rocker arm housing 16-1 is provided with a first ear seat 17-1 connected to the telescopic end of the first push-pull cylinder 18-1, and the second rocker arm housing 16-2 is provided with a second ear seat 17-2 connected to the telescopic end of the second push-pull cylinder 18-2.
In this embodiment, a casing gear box is disposed in the casing 19, and a first bearing set, a second bearing set, a third bearing set, and a fourth bearing set for mounting the first left cutting drive shaft 2-1, the second left cutting drive shaft 2-5, the first right cutting drive shaft 5-1, and the second right cutting drive shaft 5-6 are disposed in the casing gear box, respectively.
In this embodiment, the first left cutting transmission gear 2-1-1, the first left cutting transmission shaft 2-1, the fifth left cutting transmission gear 2-5-1, the second left cutting transmission shaft 2-5, the first right cutting transmission gear 5-1-1, the first right cutting transmission shaft 5-1, the sixth right cutting transmission gear 5-6-1, and the second right cutting transmission shaft 5-6 are respectively integrally formed.
In this embodiment, the first rocker arm housing 16-1 and the second rocker arm housing 16-2 are respectively provided with a gear box, and a first left bearing group, a second left bearing group and a third left bearing group for installing the first left rocker arm transmission shaft 4-1, the second left rocker arm transmission shaft 4-3 and the third left rocker arm transmission shaft 4-5, and a first right bearing group, a second right bearing group and a third right bearing group for installing the first right rocker arm transmission shaft 7-1, the second right rocker arm transmission shaft 7-3 and the third right rocker arm transmission shaft 7-5 are arranged in the gear box.
In this embodiment, the first left rocker arm transmission shaft 4-1 and the first left rocker arm transmission gear, the second left rocker arm transmission shaft 4-3 and the third left rear rocker arm transmission gear 4-3-2, the third left rocker arm transmission shaft 4-5 and the fifth left rocker arm transmission gear 4-5-1, and the first right rocker arm transmission shaft 7-1 and the first right rocker arm transmission gear, the second right rocker arm transmission shaft 7-3 and the third right rear rocker arm transmission gear, the third right rocker arm transmission shaft 7-5 and the fifth left rocker arm transmission gear 4-5-1 may be integrally formed, respectively.
In the embodiment, a first front bearing group for installing a second left cutting transmission gear 2-2-1 is sleeved on the first left idler shaft 2-2, a second front bearing group for installing a third left cutting transmission gear 2-3-1 is sleeved on the second left idler shaft 2-3, and a third front bearing group for installing a fourth left cutting transmission gear 2-4-1 is sleeved on the third left idler shaft 2-4; the first right idler shaft 5-2 is sleeved with a fourth front bearing group for installing a second right cutting transmission gear 5-2-1, the second right idler shaft 5-3 is sleeved with a fifth front bearing group for installing a third right cutting transmission gear 5-3-1, the third right idler shaft 5-4 is sleeved with a sixth front bearing group for installing a fourth right cutting transmission gear 5-4-1, the fourth right idler shaft 5-5 is sleeved with a seventh front bearing group for installing a fifth right cutting transmission gear 5-5-1, and the first left idler shaft 2-2, the second left idler shaft 2-3, the third left idler shaft 2-4, the first right idler shaft 5-2, the second right idler shaft 5-3, the third right idler shaft 5-4 and the fourth right idler shaft 5-5 are all installed in a shell gear box.
In the embodiment, the transmission shaft 8 is connected with the output shaft of the cutting motor 1, the second left cutting transmission shaft 2-5 is connected with the driving shaft 3-1 in the first coupling assembly 3, the driven shaft 3-2 in the first coupling assembly 3 is connected with the first left rocker transmission shaft 4-1, and the third left rocker transmission shaft 4-5 is connected with the first-stage left planetary reducer 12-1 through splines.
In the embodiment, the second right cutting transmission shaft 5-6 is connected with the driving shaft 3-1 in the second coupler assembly 6, the driven shaft 3-2 in the second coupler assembly 6 is connected with the first right rocker arm transmission shaft 7-1, and the third right rocker arm transmission shaft 7-5 is connected with the first-stage right planetary reducer 12-2 through splines.
In this embodiment, the first rocker arm housing 16-1 is provided with a first rocker arm housing ear seat 16-1 and a second rocker arm housing ear seat 16-1-2, the body housing 19 is provided with a first housing ear seat 19-1, a second housing ear seat 19-2 and a third housing ear seat 19-3, the first rocker arm housing ear seat 16-1 is attached to the first housing ear seat 19-1, and the second rocker arm housing ear seat 16-1-2 is located between the second housing ear seat 19-2 and the third housing ear seat 19-3;
the driving shaft 3-1 in the first coupling assembly 3 sequentially passes through the first rocker arm shell ear seat 16-1 and the first shell ear seat 19-1, and the driven shaft 3-2 in the first coupling assembly 3 sequentially passes through the second shell ear seat 19-2, the second rocker arm shell ear seat 16-1-2 and the third shell ear seat 19-3.
In this embodiment, the second rocker arm housing 16-2 is provided with a third rocker arm housing ear seat 16-2-1 and a fourth rocker arm housing ear seat 16-2, the body housing 19 is provided with a fourth housing ear seat 19-4, a fifth housing ear seat 19-5 and a sixth housing ear seat 19-6, the third rocker arm housing ear seat 16-2-1 is attached to the fourth housing ear seat 19-4, and the fourth rocker arm housing ear seat 16-2-2 is located between the fifth housing ear seat 19-5 and the sixth housing ear seat 19-6;
the driving shaft 3-1 in the second coupling assembly 6 sequentially passes through the third rocker arm housing ear seat 16-2-1 and the fourth housing ear seat 19-4, and the driven shaft 3-2 in the second coupling assembly 6 sequentially passes through the fifth housing ear seat 19-5, the fourth rocker arm housing ear seat 16-2-2 and the sixth housing ear seat 19-6.
In the embodiment, the cutting motor 1 is a mining explosion-proof motor, the power of the cutting motor 1 is 300 kW-500 kW, and the cutting motor can be adjusted in the actual use process.
In the present embodiment, the cutting motor 1 is disposed in the body housing 19 for the purpose of: the cutting motor 1 is embedded in the machine body shell 19 and does not swing along with the rocker arm to be far away from the vibration source, so that the impact of the cutting motor on impact load is reduced, and the reliability of a cutting system is improved.
In the embodiment, the first coupling assembly 3 is provided for the purpose of first connecting the first left rocker arm transmission member 2 and the second left rocker arm transmission member 4 in a transmission manner, so that the output power of the cutting motor 1 is sequentially transmitted to the first cutting drum 15-1 through the first left rocker arm transmission member 2, the first coupling assembly 3 and the second left rocker arm transmission member 4, and the cutting coal mining of the first cutting drum 15-1 is realized; secondly, in order to achieve the connection between the first rocker arm housing 16-1 and the fuselage housing 19, the mounting of the first rocker arm housing ear mount 16-1-1, the first rocker arm housing ear mount 16-1-2, the first housing ear mount 19-1, the second housing ear mount 19-2, and the third housing ear mount 19-3 is effectively accommodated; third, to facilitate the adjustment of the height of the second cutting drum 15-2 by the first push-pull cylinder 18-1.
In the embodiment, the second coupling assembly 6 is provided for the purpose of, firstly, connecting the first right rocker arm transmission member 5 and the second right rocker arm transmission member 7 in a transmission manner, so that the output power of the cutting motor 1 is sequentially transmitted to the second cutting drum 15-2 through the first right rocker arm transmission member 5, the second coupling assembly 6 and the second right rocker arm transmission member 7, and the cutting coal mining of the second cutting drum 15-2 is realized; secondly, in order to achieve the connection between the second rocker arm housing 16-2 and the body housing 19, the installation of the third rocker arm housing ear mount 16-2-1, the fourth rocker arm housing ear mount 16-2, the fourth housing ear mount 19-4, the fifth housing ear mount 19-5 and the sixth housing ear mount 19-6 is effectively adapted; third, to facilitate the adjustment of the height of the second cutting drum 15-2 by the second push-pull cylinder 18-2.
In the embodiment, the first push-pull oil cylinder 18-1 and the second push-pull oil cylinder 18-2 are overhead oil cylinders, the overhead oil cylinders are adopted to realize lifting of the first push-pull oil cylinder 18-1 and the second cutting roller 15-2, the lower space of the machine body is not occupied, the coal passing space at the bottom of the coal mining machine is increased, and the adaptability of the coal mining machine is improved.
In this embodiment, during the specific connection, the first stage left planetary reducer 12-1 is in transmission connection with the third left rocker arm transmission shaft 4-5, the second stage left planetary reducer 13-1 is in transmission connection with the first cutting drum 15-1 through a spline, the first stage right planetary reducer 12-2 is in transmission connection with the third right rocker arm transmission shaft 7-5, and the second stage right planetary reducer 13-2 is in transmission connection with the second cutting drum 15-2 through a spline.
In this embodiment, the first stage left planetary reducer 12-1, the second stage left planetary reducer 13-1, the first stage right planetary reducer 12-2, and the second stage right planetary reducer 13-2 may be NWG planetary reducers.
A method of cutting a thin seam using a short-fuselage thin seam shearer as shown in fig. 7, comprising the steps of:
step one, adjusting a short-machine-body thin-seam coal mining machine:
moving the short-body thin-seam coal cutter to a coal mining working face, adjusting a first cutting rocker arm to the coal mining height through a first push-pull oil cylinder 18-1, and simultaneously, adjusting a second cutting rocker arm to the coal mining height through a second push-pull oil cylinder 18-2;
Cutting the thin coal seam:
step 201, operating the cutting motor 1 to rotate, wherein the cutting motor 1 rotates to drive the first left cutting transmission shaft 2-1 and the first left cutting transmission gear 2-1-1 to rotate through the transmission shaft 8, the synchronizing shaft 9 and the synchronizing gear 10, the first left cutting transmission gear 2-1-1 rotates to drive the second left cutting transmission gear 2-2-1 to rotate, the second left cutting transmission gear 2-2-1 rotates to drive the third left cutting transmission gear 2-3-1 to rotate, the third left cutting transmission gear 2-3-1 rotates to drive the fourth left cutting transmission gear 2-4-1 to rotate, the fourth left cutting transmission gear 2-4-1 rotates to drive the fifth left cutting transmission gear 2-5-1 to rotate, and the fifth left cutting transmission gear 2-5-1 rotates to drive the second left cutting transmission shaft 2-5 to rotate; simultaneously, the synchronous gear 10 drives the first right cutting transmission gear 5-1-1 to rotate, the first right cutting transmission gear 5-1-1 rotates to sequentially drive the second right cutting transmission gear 5-2-1, the third right cutting transmission gear 5-3-1, the fourth right cutting transmission gear 5-4-1 and the fifth right cutting transmission gear 5-5-1 to rotate, the fifth right cutting transmission gear 5-5-1 rotates to drive the sixth right cutting transmission gear 5-6-1 to rotate, and the sixth right cutting transmission gear 5-6-1 rotates to drive the second right cutting transmission shaft 5-6 to rotate;
202, the second left cutting transmission shaft 2-5 rotates to drive the first coupler assembly 3 to rotate, and the second right cutting transmission shaft 5-6 rotates to drive the second coupler assembly 6 to rotate;
step 203, the first coupling assembly 3 rotates to drive the first left rocker arm transmission shaft 4-1 to rotate, the first left rocker arm transmission shaft 4-1 rotates to drive the first left rocker arm transmission gear 4-1 to rotate, the first left rocker arm transmission gear 4-1 rotates to drive the second left rocker arm transmission gear 4-2-1 to rotate, the second left rocker arm transmission gear 4-2-1 rotates to drive the third left front rocker arm transmission gear 4-3-1 to rotate, the third left front rocker arm transmission gear 4-3-1 rotates to drive the second left rocker arm transmission shaft 4-3 to rotate, the second left rocker arm transmission shaft 4-3 rotates to drive the third left rear rocker arm transmission gear 4-3-2 to rotate, the third left rear rocker arm transmission gear 4-3-2 rotates to drive the fourth left rocker arm transmission gear 4-4-1 to rotate, the fourth left rocker arm transmission gear 4-4-1 rotates to drive the fifth left rocker arm transmission gear 4-5-1 to rotate, and the fifth left rocker arm transmission gear 4-5-1 rotates to drive the third left rocker arm transmission shaft 4-5 to rotate; meanwhile, the second coupler assembly 6 rotates to drive the first right rocker arm transmission shaft 7-1 to rotate, the first right rocker arm transmission shaft 7-1 rotates to drive the first right rocker arm transmission gear to rotate, the first right rocker arm transmission gear rotates to drive the second right rocker arm transmission gear to rotate, the second right rocker arm transmission gear rotates to drive the third right front rocker arm transmission gear to rotate, the third right front rocker arm transmission gear rotates to drive the second right rocker arm transmission shaft 7-3 to rotate, the second right rocker arm transmission shaft 7-3 rotates to drive the third right rear rocker arm transmission gear to rotate, the third right rear rocker arm transmission gear rotates to drive the fourth right rocker arm transmission gear to rotate, the fourth right rocker arm transmission gear rotates to drive the fifth right rocker arm transmission gear to rotate, and the fifth right rocker arm transmission gear rotates to drive the third right rocker arm transmission shaft 7-5 to rotate;
204, the third left rocker arm transmission shaft 4-5 rotates to drive the first cutting roller 15-1 to rotate through the first-stage left planetary reducer 12-1 and the second-stage left planetary reducer 13-1, and simultaneously, the third right rocker arm transmission shaft 7-5 rotates to drive the second cutting roller 15-2 to rotate through the first-stage right planetary reducer 12-2 and the second-stage right planetary reducer 13-2, so that coal cutting is carried out on a thin coal seam, and the cutting of the thin coal seam is realized;
and thirdly, repeating the first step and the second step for a plurality of times until the mining of the whole coal face is completed.
As shown in fig. 6, in the present embodiment, the second cooling mechanism includes an upper cooling mechanism 21-1 and a lower cooling mechanism 21-2, the upper cooling mechanism 21-1 and the lower cooling mechanism 21-2 have the same structure, each of the upper cooling mechanism 21-1 and the lower cooling mechanism 21-2 includes a mounting seat 21-1 mounted on a gear box, a mounting shaft 21-1-2 clamped between the mounting seat 21-1 and the gear box, and a cooling coil 21-1-3 sleeved on the mounting shaft 21-1-2, an inlet of the cooling coil 21-1-3 is connected with the water supply part, and an outlet of the cooling coil 21-1-3 is communicated with the rocker arm external spray head 20 through a hose;
the first cooling mechanism comprises a cooling water pipe 14 penetrating through the first cutting drum 15-1 and the second cutting drum 15-2, an inlet of the cooling water pipe 14 is connected with the water supply part, and an outlet of the cooling water pipe 14 is connected with a cooling interface of the cutting drum.
As shown in fig. 4 and 5, in the present embodiment, the water supply part includes a water supply main 23 disposed in the first rocker arm housing 16-1, a water separator 24 connected to the water supply main 23, and first, second and third joint seats 26-1, 26-2 and 26-3 communicating with the water separator 24;
the inlet of the water separator 24 is connected with the water supply main 23, three water pipes are arranged on the water separator 24, each water pipe is provided with a throttling screw 25, the first joint seat 26-1 is connected with the inlet of the cooling coiled pipe 21-1-3 in the upper cooling mechanism 21-1 through a hose, the third joint seat 26-3 is connected with the inlet of the cooling coiled pipe 21-1-3 in the lower cooling mechanism 21-2 through a hose, and the second joint seat 26-2 is communicated with the cooling water pipe 14 through a hose.
In this embodiment, during the process of cutting the thin coal layer by rotating the first cutting drum 15-1 and the second cutting drum 15-2, the specific cooling process is as follows:
the low-temperature water provided by the water supply part enters the cooling serpentine pipe 21-1-3 so that the upper cooling mechanism 21-1 and the lower cooling mechanism 21-2 cool the second left rocker arm transmission part 4 in the first rocker arm shell 16-1 and the second right rocker arm transmission part 7 in the second rocker arm shell 16-2, and spray dust removal is carried out through the rocker arm outer spray head 20;
Meanwhile, the low temperature water provided by the water supply part cools the first cutting drum 15-1 and the second cutting drum 15-2 through the cooling water pipe 14.
In this example, the low temperature water is at a temperature of not more than 25 ℃.
In this embodiment, the diameters of the first left rocker arm transmission gear 4-1-1, the third left front rocker arm transmission gear 4-3-1, the third left rear rocker arm transmission gear 4-3-2, the second left rocker arm transmission gear 4-2-1, and the fifth left rocker arm transmission gear 4-5-1 to the fourth left rocker arm transmission gear 4-4-1 are sequentially increased.
In this embodiment, the first rocker arm housing 16-1 and the first rocker arm housing 16-1 are generally referred to as rocker arm housings.
In this embodiment, the upper cooling mechanism 21-1 is located above and near the area at the top of the rocker arm housing between the second left rocker arm drive shaft 4-3 and the second left rocker arm idler shaft 4-4, and the lower cooling mechanism 21-2 is located below and near the area at the bottom of the rocker arm housing between the second left rocker arm drive shaft 4-3 and the second left rocker arm idler shaft 4-4.
In this embodiment, in the actual cooling process, the low-temperature water in the upper cooling mechanism 21-1 is cooled and then sprayed out by the rocker arm outer spray head 20 to perform spray dust removal, and meanwhile, the low-temperature water in the lower cooling mechanism 21-1 is cooled and then enters the rocker arm outer spray head 20 through a hose, and finally sprayed out by the rocker arm outer spray head 20 to perform spray dust removal.
In this embodiment, it should be noted that, the cooling water pipe 14 is a stainless steel water pipe, and the cooling water pipe 14 is sequentially inserted into the second left cutting transmission shaft 2-5, the first stage left planetary reducer 12-1 and the second stage left planetary reducer 13-1, a central water channel seat 27 is disposed on the gear box, and an inlet end of the cooling water pipe 14 is rotatably mounted on the central water channel seat 27 through a bearing, so that the cooling water pipe 14 can rotate along with the rocker roller, and an inlet connector is disposed on the central water channel seat 27, and is communicated with the second connector 26-2 through a hose.
In this embodiment, the centers of the synchronizing gear 10 are lower than the centers of the first left cutting transmission gear 2-1-1 and the first right cutting transmission gear 5-1-1, the centers of the second left cutting transmission gear 2-2-1, the third left cutting transmission gear 2-3-1, the fourth left cutting transmission gear 2-4-1, the second right cutting transmission gear 5-2-1, the third right cutting transmission gear 5-3-1, the fourth right cutting transmission gear 5-4-1 and the fifth right cutting transmission gear 5-5-1 are located on the same horizontal line, the center of the second left cutting transmission gear 2-2-1 is higher than the center of the first left cutting transmission gear 2-1 and lower than the center of the fifth left cutting transmission gear 2-5-1, and the center of the second right cutting transmission gear 5-2-1 is higher than the center of the first right cutting transmission gear 5-1 and lower than the center of the sixth cutting transmission gear.
In summary, the invention has reasonable design, the cutting motor is placed in the machine body shell and does not swing along with the rocker arm, the impact load influence born by the cutting motor is reduced, the driving of the rocker arms on two sides is realized through split-flow transmission, the length of the coal mining machine is greatly shortened, and the adaptability of the coal mining machine is greatly improved.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a short fuselage thin seam coal-winning machine which characterized in that: comprises a machine body shell (19), a first cutting rocker arm arranged at one end of the machine body shell (19) and a second cutting rocker arm arranged at the other end of the machine body shell (19), wherein the first cutting rocker arm comprises a first rocker arm shell (16-1), a first cutting roller (15-1) arranged at the end part of the first rocker arm shell (16-1) and a first transmission mechanism which is in transmission connection with a cutting motor (1) arranged in the machine body shell (19) and drives the first cutting rocker arm to rotate, the second cutting rocker arm comprises a second rocker arm shell (16-2), a second cutting roller (15-2) arranged at the end part of the second rocker arm shell (16-2) and a second transmission mechanism which is in transmission connection with the cutting motor (1) and drives the second cutting rocker arm to rotate, the first transmission mechanism comprises a first left rocker arm transmission part (2), a first coupling component (3) and a second left rocker arm transmission part (4) which are in transmission connection in sequence, the first left rocker arm transmission part (2) is in transmission connection with a second rocker arm (1), the second transmission component (7) is in transmission connection with the second rocker arm transmission component (6), the first rocker arm transmission component (5) is in transmission connection with the second rocker arm transmission component (6), the first right rocker arm transmission part (5) is in transmission connection with an output shaft of the cutting motor (1), and the second right rocker arm transmission part (7) is in transmission connection with the second cutting roller (15-2); the machine body shell (19) is provided with a first push-pull oil cylinder (18-1) connected with the first rocker arm shell (16-1) and a second push-pull oil cylinder (18-2) connected with the second rocker arm shell (16-2); a first cooling mechanism is arranged in each of the first cutting roller (15-1) and the second cutting roller (15-2), a second cooling mechanism and a water supply component for supplying low-temperature water to the first cooling mechanism and the second cooling mechanism are arranged in each of the first rocker arm shell (16-1) and the second rocker arm shell (16-2), and a plurality of rocker arm outer spray heads (20) are arranged on each of the first rocker arm shell (16-1) and the second rocker arm shell (16-2);
The second cooling mechanism comprises an upper cooling mechanism (21-1) and a lower cooling mechanism (21-2), the upper cooling mechanism (21-1) and the lower cooling mechanism (21-2) are identical in structure, the upper cooling mechanism (21-1) and the lower cooling mechanism (21-2) comprise a mounting seat (21-1) mounted on a gear box, a mounting shaft (21-1-2) clamped between the mounting seat (21-1-1) and the gear box and a cooling serpentine tube (21-1-3) sleeved on the mounting shaft (21-1-2), an inlet of the cooling serpentine tube (21-1-3) is connected with the water supply component, and an outlet of the cooling serpentine tube (21-1-3) is communicated with the rocker arm external spray head (20) through a hose;
the first cooling mechanism comprises a cooling water pipe (14) penetrating through the first cutting roller (15-1) and the second cutting roller (15-2), an inlet of the cooling water pipe (14) is connected with the water supply part, and an outlet of the cooling water pipe (14) is connected with a cooling interface of the cutting roller.
2. A short-fuselage low seam shearer as defined in claim 1, wherein: the first left rocker arm transmission part (2) comprises a first left cutting transmission mechanism, a second left cutting transmission mechanism, a third left cutting transmission mechanism, a fourth left cutting transmission mechanism and a fifth left cutting transmission mechanism which are sequentially connected in a transmission manner; the second left rocker arm transmission part (4) comprises a first left rocker arm transmission mechanism, a second left rocker arm transmission mechanism, a third left rocker arm transmission mechanism, a fourth left rocker arm transmission mechanism and a fifth left rocker arm transmission mechanism which are sequentially connected in a transmission way, wherein the first left cutting transmission mechanism is in transmission connection with a cutting motor (1), the fifth left cutting transmission mechanism is in transmission connection with one end of a first coupling component (3), the first left rocker arm transmission mechanism is in transmission connection with the other end of the first coupling component (3), and the fifth left rocker arm transmission mechanism is in transmission connection with a first cutting roller (15-1);
The first right rocker arm transmission part (5) comprises a first right cutting transmission mechanism, a second right cutting transmission mechanism, a third right cutting transmission mechanism, a fourth right cutting transmission mechanism, a fifth right cutting transmission mechanism and a sixth right cutting transmission mechanism which are sequentially connected in a transmission manner; the second right rocker arm transmission part (7) comprises a first right rocker arm transmission mechanism, a second right rocker arm transmission mechanism, a third right rocker arm transmission mechanism, a fourth right rocker arm transmission mechanism and a fifth right rocker arm transmission mechanism which are sequentially connected in a transmission mode, the first right cutting transmission mechanism is in transmission connection with the cutting motor (1), the sixth right cutting transmission mechanism is in transmission connection with one end of the second coupler assembly (6), the first right rocker arm transmission mechanism is in transmission connection with the other end of the second coupler assembly (6), and the fifth right rocker arm transmission mechanism is in transmission connection with the second cutting roller (15-2).
3. A short-fuselage low seam shearer as defined in claim 2, wherein: the output shaft of the cutting motor (1) is in transmission connection with a transmission shaft (8), one end, away from the output shaft of the cutting motor (1), of the transmission shaft (8) is provided with a synchronous shaft (9), and the synchronous shaft (9) is provided with a synchronous gear (10);
The first left cutting transmission mechanism comprises a first left cutting transmission shaft (2-1) and a first left cutting transmission gear (2-1-1) arranged on the first left cutting transmission shaft (2-1), the second left cutting transmission mechanism comprises a first left idler shaft (2-2) arranged in the machine body shell (19) and a second left cutting transmission gear (2-2-1) sleeved on the first left idler shaft (2-2), the third left cutting transmission mechanism comprises a second left idler shaft (2-3) arranged in the machine body shell (19) and a third left cutting transmission gear (2-3-1) sleeved on the second left idler shaft (2-3), the fourth left cutting transmission mechanism comprises a third left idler shaft (2-4) arranged in the machine body shell (19) and a fourth left cutting transmission gear (2-4-1) sleeved on the third left idler shaft (2-4), and the fifth left cutting transmission mechanism comprises a fifth left cutting transmission gear (2-5) and a left cutting transmission gear (5-5) sleeved on the second left cutting transmission shaft (2-3);
the first right cutting transmission mechanism comprises a first right cutting transmission shaft (5-1) and a first right cutting transmission gear (5-1-1) arranged on the first right cutting transmission shaft (5-1), the second right cutting transmission mechanism comprises a first right idler shaft (5-2) arranged in the machine body shell (19) and a second right cutting transmission gear (5-2-1) sleeved on the first right idler shaft (5-2), the third right cutting transmission mechanism comprises a second right idler shaft (5-3) arranged in the machine body shell (19) and a third right cutting transmission gear (5-3-1) sleeved on the second right idler shaft (5-3), the fourth right cutting transmission mechanism comprises a third right idler shaft (5-4) arranged in the machine body shell (19) and a fourth right cutting transmission gear (5-4-1) sleeved on the third right idler shaft (5-4), the fifth cutting transmission mechanism comprises a third right idler shaft (5-3) arranged in the machine body shell (19) and a fifth right cutting transmission gear (5-1) sleeved on the fourth right idler shaft (5-5), the sixth right cutting transmission mechanism comprises a second right cutting transmission shaft (5-6) and a sixth right cutting transmission gear (5-6-1) sleeved on the second right cutting transmission shaft (5-6), the first left cutting transmission gear (2-1-1) and the first right cutting transmission gear (5-1-1) are both in meshed connection with the synchronous gear (10), the second left cutting transmission shaft (2-5) is in transmission connection with the first coupling component (3), and the second right cutting transmission shaft (5-6) is in transmission connection with the second coupling component (6);
The first left cutting transmission gear (2-1-1), the second left cutting transmission gear (2-2-1), the third left cutting transmission gear (2-3-1), the fourth left cutting transmission gear (2-4-1) and the fifth cutting transmission gear are sequentially in meshed connection, and the first right cutting transmission gear (5-1-1), the second right cutting transmission gear (5-2-1), the third right cutting transmission gear (5-3-1), the fourth right cutting transmission gear (5-4-1), the fifth cutting transmission gear and the sixth cutting transmission gear are sequentially in meshed connection.
4. A short-fuselage low seam shearer as defined in claim 1, wherein: the first coupling assembly (3) and the second coupling assembly (6) are identical in structure, and the first coupling assembly (3) and the second coupling assembly (6) comprise a driving shaft (3-1) and a driven shaft (3-2) fixedly connected with the driving shaft (3-1).
5. A short-fuselage low seam shearer as defined in claim 2, wherein: the first left rocker arm transmission mechanism comprises a first left rocker arm transmission shaft (4-1) and a first left rocker arm transmission gear (4-1-1) sleeved on the first left rocker arm transmission shaft (4-1), the second left rocker arm transmission mechanism comprises a first left rocker arm idler shaft (4-2) and a second left rocker arm transmission gear (4-2-1) sleeved on the first left rocker arm idler shaft (4-2), the third left rocker arm transmission mechanism comprises a second left rocker arm transmission shaft (4-3), a third left front rocker arm transmission gear (4-3-1) sleeved on the second left rocker arm transmission shaft (4-3) and a third left rear rocker arm transmission gear (4-3-2), the third left front rocker arm transmission gear (4-3-1) is in meshed transmission connection with the second left rocker arm transmission gear (4-2-1), the fourth left rocker arm transmission mechanism comprises a second left idler shaft (4-4) and a fourth rocker arm transmission gear (4-5) sleeved on the second left idler shaft (4-4), the third left rocker arm transmission mechanism comprises a fifth rocker arm transmission shaft (4-5), the first left rocker arm transmission gear (4-1-1) is in meshed connection with the second left rocker arm transmission gear (4-2-1), and the third left rear rocker arm transmission gear (4-3-2), the fourth left rocker arm transmission gear (4-4-1) and the fifth left rocker arm transmission gear (4-5-1) are sequentially in meshed connection;
The first right rocker arm transmission mechanism comprises a first right rocker arm transmission shaft (7-1) and a first right rocker arm transmission gear sleeved on the first right rocker arm transmission shaft (7-1), the second right rocker arm transmission mechanism comprises a first right rocker arm idler shaft (7-2) and a second right rocker arm transmission gear sleeved on the first right rocker arm idler shaft (7-2), the third right rocker arm transmission mechanism comprises a second right rocker arm transmission shaft (7-3), a third right front rocker arm transmission gear sleeved on the second right rocker arm transmission shaft (7-3) and a third right rear rocker arm transmission gear, the third right front rocker arm transmission gear is in meshed transmission connection with the second right rocker arm transmission gear, the third right rear rocker arm transmission gear and the second right rocker arm transmission shaft (7-3) are integrally formed, the fourth right rocker arm transmission mechanism comprises a second right rocker arm idler shaft (7-4) and a fourth right rocker arm transmission gear sleeved on the second right rocker arm idler shaft (7-4), the fifth right rocker arm transmission mechanism comprises a third right rocker arm transmission gear and a fifth right rocker arm transmission gear (7-5) which are sequentially meshed with the third right rocker arm transmission gear and the fourth rocker arm transmission gear, and the fifth right rocker arm transmission gear is sequentially connected with the third right rocker arm transmission gear (7-5).
6. A short-fuselage low seam shearer as defined in claim 1, wherein: the cutting machine is characterized in that a first speed reducing mechanism is arranged in the first cutting roller (15-1), the first speed reducing mechanism comprises a first-stage left planetary reducer (12-1) and a second-stage left planetary reducer (13-1) which are sequentially connected with the output end of a second left rocker arm transmission part (4) in a transmission mode, a second speed reducing mechanism is arranged in the second cutting roller (15-2), and the second speed reducing mechanism comprises a first-stage right planetary reducer (12-2) and a second-stage right planetary reducer (13-2) which are sequentially connected with the output end of a second right rocker arm transmission part (7) in a transmission mode.
7. A method of cutting a thin seam with a shearer of claim 1, the method comprising the steps of:
step one, adjusting a short-machine-body thin-seam coal mining machine:
moving the short-body thin-seam coal mining machine to a coal mining working face, adjusting a first cutting rocker arm to the coal mining height through a first push-pull oil cylinder (18-1), and simultaneously adjusting a second cutting rocker arm to the coal mining height through a second push-pull oil cylinder (18-2);
cutting the thin coal seam:
step 201, operating a cutting motor (1) to rotate, wherein the cutting motor (1) rotates to sequentially drive a first left cutting transmission mechanism, a second left cutting transmission mechanism, a third left cutting transmission mechanism, a fourth left cutting transmission mechanism and a fifth left cutting transmission mechanism in a first left rocker arm transmission component (2), and simultaneously, the cutting motor (1) rotates to sequentially drive a first right cutting transmission mechanism, a second right cutting transmission mechanism, a third right cutting transmission mechanism, a fourth right cutting transmission mechanism, a fifth right cutting transmission mechanism and a sixth right cutting transmission mechanism in a first right rocker arm transmission component (5) to rotate;
202, the fifth left cutting transmission mechanism rotates to drive the first coupling component (3) to rotate, and the sixth right cutting transmission mechanism rotates to drive the second coupling component (6) to rotate,
step 203, the first coupling component (3) rotates to drive the first left rocker arm transmission mechanism, the second left rocker arm transmission mechanism, the third left rocker arm transmission mechanism, the fourth left rocker arm transmission mechanism and the fifth left rocker arm transmission mechanism in sequence, and meanwhile, the second coupling component (6) rotates to drive the first right rocker arm transmission mechanism, the second right rocker arm transmission mechanism, the third right rocker arm transmission mechanism, the fourth right rocker arm transmission mechanism and the fifth right rocker arm transmission mechanism in sequence;
204, a fifth left rocker arm transmission mechanism rotates to drive a first cutting roller (15-1) to rotate through a first-stage left planetary reducer (12-1) and a second-stage left planetary reducer (13-1), and simultaneously, a fifth right rocker arm transmission mechanism rotates to drive a second cutting roller (15-2) to rotate through a first-stage right planetary reducer (12-2) and a second-stage right planetary reducer (13-2), so that coal is cut on a thin coal seam, and cutting of the thin coal seam is realized;
and thirdly, repeating the first step and the second step for a plurality of times until the mining of the whole coal face is completed.
8. The method of claim 7, wherein: the water supply part comprises a water supply main pipe (23) arranged in the first rocker arm shell (16-1), a water distributor (24) connected with the water supply main pipe (23), and a first joint seat (26-1), a second joint seat (26-2) and a third joint seat (26-3) which are communicated with the water distributor (24);
the inlet of the water distributor (24) is connected with a water supply main pipe (23), three water-through pipes are arranged on the water distributor (24), a throttling screw (25) is arranged on each water-through pipe, the first joint seat (26-1) is connected with the inlet of a cooling coiled pipe (21-1-3) in the upper cooling mechanism (21-1) through a hose, the third joint seat (26-3) is connected with the inlet of the cooling coiled pipe (21-1-3) in the lower cooling mechanism (21-2) through a hose, and the second joint seat (26-2) is communicated with the cooling water pipe (14) through a hose.
9. The method of claim 7, wherein: in the process of cutting coal on a thin coal layer by rotating the first cutting roller (15-1) and the second cutting roller (15-2), the specific cooling process is as follows:
the low-temperature water provided by the water supply part enters a cooling coiled pipe (21-1-3) so that an upper cooling mechanism (21-1) and a lower cooling mechanism (21-2) cool a second left rocker arm transmission part (4) in a first rocker arm shell (16-1) and a second right rocker arm transmission part (7) in a second rocker arm shell (16-2) and spray dust is removed through a rocker arm outer spray head (20);
Meanwhile, the low-temperature water provided by the water supply component cools the first cutting roller (15-1) and the second cutting roller (15-2) through the cooling water pipe (14).
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| CN102287185A (en) * | 2011-07-16 | 2011-12-21 | 西安煤矿机械有限公司 | High-power heavy low seam mining machine |
| CN102434155A (en) * | 2011-09-26 | 2012-05-02 | 三一重型装备有限公司 | Coal cutter and rocker arm transmission system thereof |
| CN102644461A (en) * | 2012-05-07 | 2012-08-22 | 中国矿业大学 | Double-motor U-shaped cutting portion of thin seam mining machine |
| CN108952721A (en) * | 2018-08-23 | 2018-12-07 | 江苏中机矿山设备有限公司 | A kind of adaptable low seam mining machinery and coal-mining method |
| CN210738556U (en) * | 2019-09-26 | 2020-06-12 | 西安煤矿机械有限公司 | Short-body thin coal seam coal mining machine |
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2019
- 2019-09-26 CN CN201910917392.0A patent/CN110552698B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287185A (en) * | 2011-07-16 | 2011-12-21 | 西安煤矿机械有限公司 | High-power heavy low seam mining machine |
| CN102434155A (en) * | 2011-09-26 | 2012-05-02 | 三一重型装备有限公司 | Coal cutter and rocker arm transmission system thereof |
| CN102644461A (en) * | 2012-05-07 | 2012-08-22 | 中国矿业大学 | Double-motor U-shaped cutting portion of thin seam mining machine |
| CN108952721A (en) * | 2018-08-23 | 2018-12-07 | 江苏中机矿山设备有限公司 | A kind of adaptable low seam mining machinery and coal-mining method |
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