CN115434703A - Full-suspension cutting device and thin coal seam coal mining machine - Google Patents
Full-suspension cutting device and thin coal seam coal mining machine Download PDFInfo
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- CN115434703A CN115434703A CN202211101841.2A CN202211101841A CN115434703A CN 115434703 A CN115434703 A CN 115434703A CN 202211101841 A CN202211101841 A CN 202211101841A CN 115434703 A CN115434703 A CN 115434703A
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- 239000003245 coal Substances 0.000 title claims abstract description 105
- 238000005065 mining Methods 0.000 title claims abstract description 36
- 239000000725 suspension Substances 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 93
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009194 climbing Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- 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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Abstract
The invention relates to a full-suspension type cutting device and a thin coal seam coal mining machine, wherein the cutting device comprises a shell, a cutting motor and a cutting transmission system, wherein the cutting motor and the cutting transmission system are arranged in the shell; the left and right cutting devices of the thin seam coal mining machine both adopt the fully-suspended cutting device. The invention can solve the contradiction between the height of the machine face of the thin seam coal mining machine, the installed power, the coal passing space and the adaptability of the whole machine, and the problems of inconvenient maintenance of a cutting motor and high damage and replacement cost.
Description
Technical Field
The invention relates to a cutting device suitable for a thin coal seam coal mining machine and a coal mining machine applying the cutting device, and belongs to the technical field of coal mining machines.
Background
The existing thin coal seam mining machine is generally divided into a normal structural form and a base plate climbing structural form. The normal structure type coal mining machine has the advantages that the cutting motors are arranged above the two ledges of the scraper conveyor, so that the height of the machine face is influenced, the cutting motors with larger cutting power are difficult to configure, and sufficient coal passing space is difficult to ensure. Climb the bottom plate structural style and though can dispose great powerful cutting motor and guarantee great cross the coal space, reduce the machine face height, nevertheless because its cutting motor reverse arrangement is in the coal wall side, must open the dedicated maintenance space of mining in the coal wall side during the maintenance, and operating space is narrow and small, and the maintenance is changed very inconveniently, and its auxiliary stay piston shoes acts on the bottom plate top in addition, has influenced the normal meshing of walking wheel and round pin rail, and is poor to bottom plate adaptability.
Disclosure of Invention
The invention aims to provide a full-suspension type cutting device and a thin coal seam coal mining machine, which can solve the problems of contradiction between the height of a machine face of the thin coal seam coal mining machine, installed power, coal passing space and the adaptability of the whole machine, as well as inconvenience in maintenance and high damage and replacement cost of a cutting motor.
The main technical scheme of the invention is as follows:
the utility model provides a full suspension type cutting device, includes the casing and installs cutting motor and cutting transmission system in the casing, cutting transmission system is including the first order straight-tooth drive mechanism, second level straight-tooth drive mechanism and the doublestage planet reduction gears that the transmission is connected in proper order, and the axis of all gears all is the front and back level extension in cutting transmission system, cutting motor forward arranges in the mining side of casing, and interval arrangement about cutting motor and the doublestage planet reduction gears, and the first order straight-tooth drive mechanism is extended about and is arranged in cutting motor's the place and is inclined to doublestage planet reduction gears one side, cutting motor's power take off end forward with first order straight-tooth drive mechanism's input gear coaxial coupling, second level straight-tooth drive mechanism about extend arrange in doublestage planet reduction gears's rear and cutting motor one side, first level straight-tooth drive mechanism's output inclined to gear through the coaxial spline coupling of long pitch shaft and second level straight-tooth drive mechanism's input gear backward, second level straight-tooth drive mechanism's output forward with the sun gear coaxial coupling of doublestage planet reduction gears, the doublestage planet reduction gears of doublestage planet reduction gears and cutting motor's rear portion behind the position and the second level planet reduction gears that the second level straight-tooth drive mechanism that the second straight-tooth drive mechanism exceeds the second straight-tooth drive motor that the position coaxial coupling that the rear portion of the position exceeds.
The motor barrel can be internally provided with a wiring cavity of the cutting motor, and the wiring cavity is arranged at the rear end part of the upper half part of the motor barrel and is in a backward overhanging state relative to the lower half part of the motor barrel.
The cutting motor adopts a high-power density motor.
The long spline shaft and the cutting motor are arranged in two adjacent chambers separated by a wall side by side from left to right.
An oil storage cavity is formed in the shell and between an output end gear of the first-stage straight-tooth transmission mechanism and an input end gear of the second-stage straight-tooth transmission mechanism, and the long spline shaft penetrates through the oil storage cavity.
The input end gear of the first-stage straight-tooth transmission mechanism is provided with a spline hole and is coaxially splined with the output shaft of the cutting motor through the spline hole; the output end gear of the first-stage straight-tooth transmission mechanism and the input end gear of the second-stage straight-tooth transmission mechanism are both provided with spline holes, and the front part and the rear part of the long spline shaft are respectively inserted into the corresponding spline holes; an idler wheel or a plurality of idler wheels which are sequentially externally meshed is arranged between the input end gear and the output end gear of the first-stage straight-tooth transmission mechanism, and an idler wheel or a plurality of idler wheels which are sequentially externally meshed is arranged between the input end gear and the output end gear of the second-stage straight-tooth transmission mechanism; the output end gear of the second stage straight-tooth transmission mechanism is provided with a spline hole, the rear end of the sun gear of the double-stage planetary reduction mechanism is provided with an external spline, and the spline end of the sun gear of the double-stage planetary reduction mechanism is inserted into the spline hole of the output end gear of the second stage straight-tooth transmission mechanism and is coaxially connected with the output end gear of the second stage straight-tooth transmission mechanism through a spline.
And a plow-shaped coal charging device is preferably arranged at the bottom of the shell below the long spline shaft and at one end close to the double-stage planetary reduction mechanism in the left-right direction, the plow-shaped coal charging device is hinged with the shell, and the hinged axis extends forwards and backwards.
The utility model provides a thin seam coal mining machine, its left cutting device and right cutting device all adopt full suspension cutting device, left cutting device and right cutting device bilateral symmetry arrange in the left and right sides of fuselage to it is articulated with left traction walking portion and right traction walking portion respectively, under the state of thin seam coal mining machine and scraper conveyor cooperation installation, left and right cutting device wholly hangs in the outside of scraper conveyor coal wall side ledge entirely.
Furthermore, the first-stage straight-tooth transmission mechanism is positioned in front of the scraper conveyor and keeps a certain interval with the scraper conveyor, and the second-stage straight-tooth transmission mechanism is positioned above the coal shoveling plate outside the coal wall side ledge of the scraper conveyor.
The left traction walking part shell and the right traction walking part shell are respectively provided with a traction motor and a traction transmission system, the traction motors and the traction transmission systems are both arranged above the coal wall side ledge of the scraper conveyor, one of the left traction walking part shell and the right traction walking part shell is also provided with a pump motor, and the pump motor is arranged above the coal wall side ledge of the scraper conveyor.
The thin seam coal mining machine further comprises supporting sliding shoes, the supporting sliding shoes are arranged on a coal shoveling plate of the scraper conveyor, the upper portions of the supporting sliding shoes are installed on the machine body, and auxiliary supporting sliding shoes are not arranged on a bottom plate.
The invention has the beneficial effects that:
the fully-suspended cutting device is integrally and fully suspended on the coal wall side of the ledge of the scraper conveyor, so that the influence of a cutting motor on the height of a machine face and the coal passing space is avoided, and a cutting motor with higher power can be configured to meet the requirement of high-efficiency mining of a working face of a thin coal seam.
The cutting motor of the cutting device is arranged on the outer side of the coal wall side ledge of the scraper conveyor in the forward direction, so that once the cutting motor is damaged, the cutting device is convenient to maintain and replace, the cost is saved, and the labor intensity of workers is reduced.
The thin seam coal mining machine adopts a complete machine arrangement structure form of a full-suspension type cutting device and a half-suspension machine body, and effectively solves the contradiction among the installed power, the machine face height and the coal passing space. Because the auxiliary supporting sliding shoes are not arranged above the bottom plate of the coal mining machine, the supporting sliding shoes are still arranged on the coal shoveling plate of the scraper conveyor, and the adaptability of the thin seam coal mining machine is greatly improved compared with a structure form of climbing the bottom plate.
Drawings
Fig. 1 is a front view of one embodiment of a fully suspended cutting apparatus (left cutting apparatus) of the present invention;
FIG. 2 is a cross-sectional view of the embodiment of FIG. 1;
FIG. 3 is a top view of an embodiment of the thin seam shearer;
FIG. 4 is a front view of an embodiment of the thin seam shearer;
fig. 5 is a left side view of an embodiment of the thin seam shearer.
Reference numerals are as follows:
1. the coal cutting machine comprises a shell, a cutting motor, a clutch system, a first-stage straight-tooth transmission mechanism, a second-stage straight-tooth transmission mechanism, a long spline shaft, a double-stage planetary reduction mechanism, a plough-shaped coal charging device, a roller, a left cutting device, a left traction walking part, a left electric control box, a right traction walking part, a right cutting device, a scraper conveyor and an oil storage cavity, wherein the shell comprises a shell, 2, the cutting motor, 3, the clutch system, 4, the first-stage straight-tooth transmission mechanism, 5, the second-stage straight-tooth transmission mechanism, 6, the long spline shaft, 7, the double-stage planetary reduction mechanism, 8, 9, 10, the left cutting device, 11, 12, the electric control box, 13, the right traction walking part, 14, the right cutting device, 15, the scraper conveyor and the oil storage cavity; B. a cutting drive system; C. traction transmission system, D draw motor, E pump motor.
Detailed Description
The invention discloses a full-suspension type cutting device (which can be called as a cutting device for short), which comprises a shell 1, a cutting motor 2 and a cutting transmission system B, wherein the cutting motor 2 and the cutting transmission system B are arranged in the shell, and the cutting transmission system comprises a first-stage straight tooth transmission mechanism 4, a second-stage straight tooth transmission mechanism 5 and a two-stage planetary reduction mechanism 7 which are sequentially connected in a transmission manner. The axes of all gears in the cutting transmission system horizontally extend from front to back. The cutting motor is arranged on the mining side of the shell in the forward direction, and is convenient to disassemble and assemble from the mining side. The cutting motor and the double-stage planetary reducing mechanism are arranged at left and right intervals. The first-stage straight-tooth transmission mechanism extends left and right and is arranged in front of the cutting motor and is deviated to one side of the double-stage planetary reduction mechanism, and the power output end of the cutting motor is forward and coaxially connected with the input end gear of the first-stage straight-tooth transmission mechanism. The second stage straight tooth transmission mechanism extends left and right and is arranged behind the double-stage planetary reduction mechanism and deviates to one side of the cutting motor, and the output end gear of the first stage straight tooth transmission mechanism is coaxially connected with the input end gear of the second stage straight tooth transmission mechanism through a long spline shaft 6 in a spline mode. The output end gear of the second stage straight tooth transmission mechanism is coaxially connected with the sun gear of the double stage planetary reduction mechanism forwards, and the rear part of the cutting motor and the motor cylinder (belonging to one part of the shell) at which the cutting motor is arranged are hung backwards and exceed the second stage straight tooth transmission mechanism. The double-stage planetary reduction mechanism is arranged at the low-speed end in a rear mode, so that the cutting transmission system keeps a low output rotating speed, a large output torque is obtained, and the cutting capacity of the roller 9 is improved. The double-stage planetary reduction mechanism can effectively reduce the load of the straight-tooth transmission part, reduce the outer diameter of the gear at the output end of the second-stage straight-tooth transmission mechanism to increase the bottom lying amount of the coal mining machine, and control the outer diameter of the double-stage planetary reduction mechanism to ensure the coal charging effect of the roller.
The arrangement directions of the cutting motor, the first-stage straight-tooth transmission mechanism, the second-stage straight-tooth transmission mechanism and the double-stage planetary reduction mechanism enable the corresponding shell to be in an approximate U-shaped structure (see fig. 2).
The cutting device is also provided with a clutch system, and the clutch system is arranged at the output end of the cutting motor and is matched with the input end gear of the first-stage gear transmission mechanism to complete the operation of separation and combination.
The wiring cavity of the cutting motor can be arranged in the motor barrel, the wiring cavity is arranged at the rear end part of the upper half part of the motor barrel and is in a backward overhanging state relative to the lower half part of the motor barrel, and therefore the space below the wiring cavity can be used for coal flow, and the coal passing space is increased.
The cutting motor adopts a high-power-density motor, and the axial and radial sizes of the cutting motor can be smaller, so that the matching requirements of a three-machine can be better met.
The long spline shaft and the cutting motor are arranged in two adjacent chambers separated by a wall side by side from left to right.
An oil storage cavity A is formed in the shell and between an output end gear of the first-stage straight-tooth transmission mechanism and an input end gear of the second-stage straight-tooth transmission mechanism, so that the heat exchange space of oil in the cutting device can be enlarged, oil circulation is promoted, heat dissipation performance is improved, and the temperature of the cutting device is quickly balanced. The long spline shaft penetrates through the oil storage cavity.
The input end gear of the first-stage straight tooth transmission mechanism is provided with a spline hole, and is coaxially splined with the output shaft of the cutting motor through the spline hole; the output end gear of the first-stage straight-tooth transmission mechanism and the input end gear of the second-stage straight-tooth transmission mechanism are both provided with spline holes, and the front part and the rear part of the long spline shaft are respectively inserted into the corresponding spline holes; an idler wheel or a plurality of idler wheels which are sequentially externally meshed are arranged between the input end gear and the output end gear of the first-stage straight tooth transmission mechanism, and an idler wheel or a plurality of idler wheels which are sequentially externally meshed are arranged between the input end gear and the output end gear of the second-stage straight tooth transmission mechanism; the output end gear of the second stage straight-tooth transmission mechanism is provided with a spline hole, the rear end of the sun gear of the double-stage planetary reduction mechanism is provided with an external spline, and the spline end of the sun gear of the double-stage planetary reduction mechanism is inserted into the spline hole of the output end gear of the second stage straight-tooth transmission mechanism and is coaxially connected with the output end gear of the second stage straight-tooth transmission mechanism through a spline.
The double-stage planetary reduction mechanism comprises a first-stage planetary reduction mechanism and a second-stage planetary reduction mechanism, a sun gear of the first-stage planetary reduction mechanism is also a sun gear and an input end of the double-stage planetary reduction mechanism, a planet carrier of the first-stage planetary reduction mechanism is in coaxial spline connection with the sun gear of the second-stage planetary reduction mechanism, a planet carrier of the second-stage planetary reduction mechanism is also a planet carrier and an output end of the double-stage planetary reduction mechanism, and the planet carrier of the second-stage planetary reduction mechanism is in coaxial spline connection with a square connecting sleeve for mounting the roller 9. The torque is output to the first-stage planetary reduction mechanism by the output end gear of the second-stage straight-tooth transmission mechanism, when the sun gear of the first-stage planetary reduction mechanism rotates, the planet wheel rotation of the first-stage planetary reduction mechanism is driven, meanwhile, the planet carrier of the first-stage planetary reduction mechanism is driven to rotate, the torque is transmitted to the sun gear of the second-stage planetary reduction mechanism, when the sun gear of the second-stage planetary reduction mechanism rotates, the planet wheel rotation of the second-stage planetary reduction mechanism is driven, meanwhile, the planet carrier of the second-stage planetary reduction mechanism is driven to rotate, and then the connecting sleeve is driven to rotate.
The roller is arranged outside the square connecting sleeve, and the connecting sleeve transmits the cutting torque to the roller to drive the roller to do work. When the roller cuts coal, a relatively closed space surrounded by the U-shaped structure of the cutting device can play a role in assisting coal charging.
And a plow-shaped coal charging device is preferably arranged at the bottom of the shell below the long spline shaft and at one end close to the double-stage planetary reduction mechanism in the left-right direction, the plow-shaped coal charging device is hinged with the shell, and the hinged axis extends forwards and backwards. The plough-shaped coal loading device can rotate freely under the pushing of coal flow, and the rotating direction is different along with the different traveling directions of the coal mining machine. Under the visual angle shown in fig. 4, when the coal mining machine walks leftwards, the plow-shaped coal loading device of the left cutting device rotates anticlockwise downwards, coal falling to the rear of the left roller (the rear of the walking direction is indicated, namely the right side in fig. 4) is pushed to the left roller to be loaded repeatedly, so that the coal loading effect of the left roller can be effectively improved, and at the moment, the plow-shaped coal loading device of the right cutting device rotates anticlockwise upwards without increasing the traction resistance. When the coal mining machine travels rightwards, the plow-shaped coal loading device of the right cutting device rotates clockwise downwards, coal falling to the rear of the right roller (the rear of the traveling direction, namely the left side in the drawing 4) is pushed to the right roller to be loaded repeatedly, so that the coal loading effect of the right roller can be effectively improved, and at the moment, the plow-shaped coal loading device of the left cutting device rotates clockwise upwards without increasing the traction resistance.
Furthermore, the width of the plow-shaped coal charging device in the left-right direction is preferably set to be a structure with a wide front part and a narrow back part, so that a wedge-shaped space with a narrow front part and a wide back part is formed between the plow-shaped coal charging device and the corresponding side roller, the coal breakage can be prevented from flowing to the side of the coal wall outside the roller, and the coal breakage can be guaranteed to be pushed to the corresponding side roller for coal charging.
The invention also discloses a thin seam coal mining machine, wherein the full-suspension type cutting device is adopted by the left cutting device 10 and the right cutting device 14, the left cutting device and the right cutting device are symmetrically arranged at the left side and the right side of the machine body, and the machine body of the coal mining machine is a three-section type machine body and comprises an electric cabinet 12, a left traction walking part 11 and a right traction walking part 13 which are arranged at the two sides of the electric cabinet. The left cutting device and the right cutting device are respectively hinged with the left traction walking part 11 and the right traction walking part 13. Under the state that the thin seam coal mining machine is installed in cooperation with the scraper conveyor 15, the left cutting device and the right cutting device are integrally and completely suspended outside the ledge on the coal wall side of the scraper conveyor, and the influence of the vertical swing of the cutting devices on the coal passing space and the machine face height of the coal mining machine can be avoided. The structural form effectively solves the contradiction among the installed power, the machine face height and the coal passing space.
Compared with the conventional mode of arranging the cutting motors above the two ledges of the scraper conveyor, the arrangement mode of the cutting motors in the invention obviously increases the coal passing height between the two ledges because the cutting motors are completely moved out of the middle groove of the scraper conveyor, thereby obviously increasing the coal passing space. After the full-suspension type cutting device is adopted, the matching top lifting amount and bottom lying amount of the coal mining machine are both considered, and the adaptability of the cutting device is improved.
Furthermore, the first-stage straight-tooth transmission mechanism is positioned in front of the scraper conveyor and keeps a certain interval with the scraper conveyor, and the second-stage straight-tooth transmission mechanism is positioned above a coal shoveling plate outside the ledge on the coal wall side of the scraper conveyor.
A traction motor D and a traction transmission system C are respectively arranged in the left traction walking part shell and the right traction walking part shell, the traction transmission system comprises a first-stage straight tooth transmission system, a second-stage straight tooth transmission system, a third-stage straight tooth transmission system and a first-stage planetary reduction gear, the traction motor and the traction transmission system are both arranged above the coal wall side ledge of the scraper conveyor (a semi-suspension machine body is formed), and the height of the machine surface and the coal passing space are not influenced by the traction motor D and the traction transmission system C. And a pump motor E is also arranged in the shell of one of the left traction walking part and the right traction walking part, and is arranged above the coal wall side ledge of the scraper conveyor. The machine surface height and the coal passing space are not influenced by the traction motor D, the pump motor E and the traction transmission system C.
In addition, the auxiliary sliding shoes above the bottom plate are eliminated, the supporting sliding shoes are arranged on a coal shoveling plate of the scraper conveyor, and the adaptability of the thin seam coal mining machine is greatly improved compared with the arrangement structure form of the climbing bottom plate.
Except the shell, all other internal parts of the left cutting device and the right cutting device can be interchanged.
In the case where no specific explanation is made, the front and rear referred to herein respectively refer to a direction close to the coal wall side and a direction away from the coal wall side.
Claims (11)
1. The utility model provides a full suspension cutting device which characterized in that: the cutting motor and the cutting transmission system are installed in the shell, the cutting transmission system comprises a first-stage straight-tooth transmission mechanism, a second-stage straight-tooth transmission mechanism and a double-stage planetary reduction mechanism which are sequentially connected in a transmission mode, axes of all gears in the cutting transmission system extend horizontally from front to back, the cutting motor is arranged in the forward direction of the mining side of the shell, the cutting motor and the double-stage planetary reduction mechanism are arranged in the left-right direction at intervals, the first-stage straight-tooth transmission mechanism extends from left to right and is arranged on one side of the forward deviation double-stage planetary reduction mechanism of the cutting motor, the power output end of the cutting motor is coaxially connected with an input gear of the first-stage straight-tooth transmission mechanism forward, the second-stage straight-tooth transmission mechanism extends from left to right and is arranged behind the double-stage planetary reduction mechanism and is deviated to one side of the cutting motor, an output end gear of the first-stage straight-tooth transmission mechanism is coaxially connected with an input gear of the second-stage straight-tooth transmission mechanism through a long spline shaft backward, an output gear of the second-tooth transmission mechanism is coaxially connected with a sun gear of the double-stage planetary reduction mechanism forward, and a rear portion of the cutting motor and a barrel body where the cutting motor and the cutting motor are located and exceed the second-stage straight-tooth transmission mechanism backward.
2. The fully suspended cutting apparatus of claim 1, wherein: the cutting machine is characterized in that a wiring cavity of the cutting motor is arranged in the motor barrel, and the wiring cavity is arranged at the rear end part of the upper half part of the motor barrel and is in a backward overhanging state relative to the lower half part of the motor barrel.
3. The fully suspended cutting apparatus of claim 1, wherein: the cutting motor adopts a high-power density motor.
4. The fully suspended cutting apparatus of claim 1, wherein: the long spline shaft and the cutting motor are arranged in two adjacent chambers separated by a wall in a left-right side-by-side mode.
5. The fully suspended cutting apparatus of claim 1, wherein: an oil storage cavity is formed in the shell and between an output end gear of the first-stage straight-tooth transmission mechanism and an input end gear of the second-stage straight-tooth transmission mechanism, and the long spline shaft penetrates through the oil storage cavity.
6. The fully suspended cutting apparatus of claim 1, wherein: the input end gear of the first-stage straight-tooth transmission mechanism is provided with a spline hole and is coaxially splined with the output shaft of the cutting motor through the spline hole; the output end gear of the first-stage straight-tooth transmission mechanism and the input end gear of the second-stage straight-tooth transmission mechanism are both provided with spline holes, and the front part and the rear part of the long spline shaft are respectively inserted into the corresponding spline holes; an idler wheel or a plurality of idler wheels which are sequentially externally meshed is arranged between the input end gear and the output end gear of the first-stage straight-tooth transmission mechanism, and an idler wheel or a plurality of idler wheels which are sequentially externally meshed is arranged between the input end gear and the output end gear of the second-stage straight-tooth transmission mechanism; the output end gear of the second stage straight-tooth transmission mechanism is provided with a spline hole, the rear end of the sun gear of the double-stage planetary reduction mechanism is provided with an external spline, and the spline end of the sun gear of the double-stage planetary reduction mechanism is inserted into the spline hole of the output end gear of the second stage straight-tooth transmission mechanism and is coaxially connected with the output end gear of the second stage straight-tooth transmission mechanism through a spline.
7. The fully suspended cutting apparatus of claim 1, 2, 3, 4, 5 or 6, wherein: and one end of the bottom of the shell below the long spline shaft, close to the double-stage planetary reduction mechanism in the left-right direction, is provided with a plow-shaped coal charging device, the plow-shaped coal charging device is hinged with the shell, and the hinged axis extends forwards and backwards.
8. A thin coal seam coal mining machine is characterized in that: the left cutting device and the right cutting device are all the full-suspension cutting device as claimed in any one of claims 1 to 7, the left cutting device and the right cutting device are symmetrically arranged on the left side and the right side of the machine body and are respectively hinged with the left traction walking part and the right traction walking part, and the left cutting device and the right cutting device are integrally and fully suspended outside the coal wall side ledge of the scraper conveyor under the state that the thin coal seam mining machine and the scraper conveyor are installed in a matched mode.
9. The thin seam shearer of claim 8, wherein: the first-stage straight tooth transmission mechanism is positioned in front of the scraper conveyor and keeps a certain interval with the scraper conveyor, and the second-stage straight tooth transmission mechanism is positioned above a coal shoveling plate outside a coal wall side ledge of the scraper conveyor.
10. The thin seam shearer of claim 9, wherein: the left traction walking part shell and the right traction walking part shell are respectively provided with a traction motor and a traction transmission system, the traction motors and the traction transmission systems are both arranged above the coal wall side ledge of the scraper conveyor, one of the left traction walking part shell and the right traction walking part shell is also provided with a pump motor, and the pump motor is arranged above the coal wall side ledge of the scraper conveyor.
11. The thin seam shearer of claim 10, wherein: the coal scraper also comprises a supporting sliding shoe, the supporting sliding shoe is arranged on a coal shoveling plate of the scraper conveyor, the upper part of the supporting sliding shoe is arranged on the machine body, and the bottom plate is not provided with an auxiliary supporting sliding shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211101841.2A CN115434703A (en) | 2022-09-09 | 2022-09-09 | Full-suspension cutting device and thin coal seam coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211101841.2A CN115434703A (en) | 2022-09-09 | 2022-09-09 | Full-suspension cutting device and thin coal seam coal mining machine |
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| CN115434703A true CN115434703A (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211101841.2A Pending CN115434703A (en) | 2022-09-09 | 2022-09-09 | Full-suspension cutting device and thin coal seam coal mining machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446869A (en) * | 2023-04-21 | 2023-07-18 | 中国矿业大学 | Self-drilling hard mineral longwall mining machine and mining method |
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2022
- 2022-09-09 CN CN202211101841.2A patent/CN115434703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116446869A (en) * | 2023-04-21 | 2023-07-18 | 中国矿业大学 | Self-drilling hard mineral longwall mining machine and mining method |
| CN116446869B (en) * | 2023-04-21 | 2023-12-26 | 中国矿业大学 | Self-drilling hard mineral longwall mining machine and mining method |
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