CN210919035U - Electrically-driven crawler traveling type open-air continuous miner - Google Patents
Electrically-driven crawler traveling type open-air continuous miner Download PDFInfo
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- CN210919035U CN210919035U CN201920433425.XU CN201920433425U CN210919035U CN 210919035 U CN210919035 U CN 210919035U CN 201920433425 U CN201920433425 U CN 201920433425U CN 210919035 U CN210919035 U CN 210919035U
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Abstract
The utility model discloses an electric drive track walking type open-air continuous miner is the integral coal-winning machine that major part such as cutting units, loading portion, conveying part, walking portion, main frame, driver's cabin, cable reel device constitute. The device can be used in cooperation with a scraper continuous conveying system or a belt continuous conveying system to realize continuous mining of a thin coal seam of an opencast coal mine, and can also be used as coal mining equipment to be used alone, so that the mined coal is not required to be crushed alone.
Description
Technical Field
The utility model relates to a design and manufacturing technical field of opencut coal mine mechanical equipment, concretely relates to electric drive track walking opencut continuous miner.
Background
The prior open pit coal mine thin coal seam mining is the same as thick coal seam mining, and adopts a coal mining process of blasting loosening, front loading machine excavation and truck transportation. The drilling and blasting cause great pollution to the environment, and meanwhile, the extracted coal has large lump size and needs to be transported to a mobile crushing station for crushing, so that the cost per ton of coal is increased.
The existing drum-type open-pit continuous coal mining machine is used for mining the thin coal seam of the open-pit coal mine, the mined coal is unloaded into a truck through a scraper conveyor and a belt conveyor, and the mined coal is transported away, and the coal mining mode is still an intermittent coal mining process and has low production efficiency. In addition, the drum-type open-air continuous miner is hydraulically driven to walk, so that the overload capacity is poor and the transmission efficiency is low. In addition, when the drum-type open-air continuous miner cuts coal, because one side is not shielded by a coal wall, the cut coal is far collapsed and cannot fall on the loading part completely, and therefore, the coal loading effect is poor.
Disclosure of Invention
The utility model provides an electric drive track walking opencast continuous miner can realize opencast coal mine thin seam continuous mining with scraper blade continuous conveyor system or the supporting use of belt continuous conveyor system, also can regard as coal mining equipment exclusive use, and the coal of picking down need not be broken alone.
In order to achieve the above object, the utility model adopts the following technical scheme:
an electrically driven crawler traveling type open-air continuous miner comprises
The transformer room is arranged above the main frame, and the dust remover is arranged above the transformer room;
the traveling parts are fixedly arranged on two sides of the main rack so as to drive the whole equipment to travel; a hydraulic oil tank is arranged above the walking part, and a cab is arranged above the electric room;
the coal cutting device comprises a cutting part, a coal cutting part and a coal cutting part, wherein the cutting part is rotatably arranged at the upper end of the front part of a main frame through a cutting pin shaft, the lower part of the cutting part is also connected with the main frame through a cutting oil cylinder, and the cutting oil cylinder can pull the cutting part to swing to cut coal when stretching;
the loading part is rotatably arranged at the lower end of the front part of the main frame through a loading pin shaft, and is also connected with the main frame through a loading oil cylinder, and the loading oil cylinder can drag the loading part to swing up and down when stretching so as to facilitate coal loading and walking;
the conveying part is longitudinally arranged in the middle of the main rack and is positioned below the transformer room, and the front end of the conveying part is connected with the loading part;
and the cable winding device is arranged at the upper end of the rear part of the main frame and is positioned above the rear end of the conveying part, and the cable winding device automatically winds and discharges cables along with the forward and backward movement of the whole machine.
Specifically, the cutting part comprises a cutting shell, a cutting drum arranged in front of the cutting shell, a plurality of groups of cutting teeth arranged on the cutting drum, a cutting reducer arranged in the cutting drum and connected with the cutting drum, a cutting motor arranged in the cutting shell and connected with the cutting reducer, and a cutting arm; the upper end of the cutting arm is fixed on the cutting shell, and the lower end of the cutting arm is connected with the upper end of the front part of the main frame in a rotatable mode through a cutting pin shaft after extending downwards in a downward inclined mode.
Specifically speaking, the number of the cutting oil cylinders is two, the cylinder end of each cutting oil cylinder is connected with the main frame, and the piston rod end is connected with the bottom of the cutting shell in front of the cutting arm.
The coal blocking plate is arranged at the side without the coal wall of the cutting shell and used for preventing coal cut by the cutting part from falling out of the loading part, and the coal blocking plate is arranged at the upper end of the cutting arm through a coal blocking pin shaft; and a stop block for limiting the coal baffle plate to rotate downwards is also fixed on the cutting arm.
More specifically, the loading part comprises a coal shoveling box body which is rotatably connected with the lower end of the front part of the main frame through a loading pin shaft, a coal shoveling plate which is arranged above the coal shoveling box body and used for shoveling coal, rake claws which are arranged above the coal shoveling plate, a coal shoveling speed reducer and a coal shoveling motor which are arranged in the coal shoveling box body; the rake claw, the coal shoveling speed reducer and the coal shoveling motor are sequentially connected, so that the coal shoveling motor drives the rake claw to rotate, and coal is moved to the conveying part to be conveyed away; the number of the loading oil cylinders is two, the cylinder end of each loading oil cylinder is connected with the main frame, and the piston rod end is connected with the upper part of the coal shoveling box body close to one side of the main frame.
Furthermore, the coal shoveling plate on the same side of the coal blocking plate is provided with a heightened and widened baffle plate so that coal blocked by the coal blocking plate can fall onto the coal shoveling plate.
Further, the conveying part is a single-medium-chain scraper conveyor, and comprises a front conveying groove body, a middle conveying groove body and a rear conveying groove body which are sequentially connected, and a driving motor arranged on one side of the rear conveying groove body, wherein the conveying speed reducer is connected with the conveying motor, the front conveying groove body is connected with the loading box body to receive coal pushed by the coal shoveling plate, the middle conveying groove body is arranged on the main frame, and the rear conveying groove body is connected with the rear part of the main frame through a conveying pin shaft.
Furthermore, a downward connecting end is arranged in the middle of the main frame, a supporting oil cylinder is arranged on the connecting end, a piston rod of the supporting oil cylinder is connected with the rear conveying trough body, and the supporting oil cylinder can drive the rear conveying trough body to swing up and down when stretching out and drawing back so as to adjust the height of the unloading point and adapt to different unloading heights.
Further, the rear conveying groove body comprises a first groove body and a second groove body which are connected through a pin shaft, and a swing oil cylinder arranged on the side faces of the first groove body and the second groove body; the swing oil cylinder can drive the second groove body to swing left and right in a telescopic mode to adapt to different unloading points.
Furthermore, the walking part is in a four-wheel-belt structure, the double-chain wheel drives, a walking motor is arranged above a track of the walking part, the walking motor is a 690V alternating current variable frequency motor, a closed-loop automatic control system is designed between the walking motor and the cutting motor, the walking motor is automatically fed back and controlled according to the load of the cutting motor, and the cutting power and the walking speed can be matched with each other.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) continuous miner can use with scraper blade continuous conveyor system or belt continuous conveyor system are supporting, realize open coal mine thin seam continuous mining, improve production efficiency. The coal mining device can also be used independently as coal mining equipment, and the mined coal is not required to be crushed independently, so that the cost per ton of coal is reduced.
(2) Continuous miner walk adopt 690V to exchange frequency conversion speed governing electric traction system, can satisfy quick transfer, frequently open and stop the requirement of feeding power when switching-over and cutting. The cutting machine has the advantages of wide speed regulation range, large starting torque, strong overload capacity and the like, and meanwhile, a closed-loop automatic control system is designed between the walking AC variable frequency motor and the cutting motor, the walking AC variable frequency motor is automatically fed back and controlled by the load of the cutting motor, and the mutual matching between the cutting power and the walking speed can be achieved.
(3) Shearer cutting arm side design a rotatable fender coal board, also designed to increase on the corresponding shovel coal board and widened the baffle, prevent that the coal from collapsing outside the loading portion, solved the side and do not have the coal wall, the poor problem of coal charging effect.
(4) Continuous miner conveying part be a discharge end can be from top to bottom, horizontal hunting's scraper conveyor, adaptable different material receiving point, application scope is wide.
(5) Continuous miner from taking cable reel device, can follow the advancing of complete machine and retreat automatic receive and release the cable, solved equipment cable and dragged along with ground, fragile, the problem that is difficult to the management.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of another angle of the present invention.
Fig. 3 is a schematic view of the cutting part of the present invention.
Fig. 4 is a schematic view of the working principle of the coal baffle of the present invention.
Fig. 5 is a schematic view of the rear conveyor trough.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
The embodiment provides an electrically driven crawler traveling type continuous miner, which mainly comprises a cutting part 1, a loading part 13, a conveying part 6, a traveling part 10, a main frame 15, a cab 2 and a cable winder 5, and is shown in fig. 1 and 2. A690V alternating-current variable-frequency speed-regulating electric traction system is adopted for walking, and the requirements of rapid movement, frequent start-stop reversing and cutting feed force can be met. The cutting machine has the advantages of wide speed regulation range, large starting torque, strong overload capacity and the like, and meanwhile, a closed-loop automatic control system is designed between the walking AC variable frequency motor and the cutting motor, the walking AC variable frequency motor is automatically fed back and controlled by the load of the cutting motor, and the mutual matching between the cutting power and the walking speed can be achieved. The side surface of the cutting drum is provided with a rotatable coal baffle plate, and the corresponding coal shoveling plate is also provided with a heightened and widened baffle plate, so that the coal is prevented from falling out of the loading part, and the problems of no coal wall on the side surface and poor coal loading effect are solved. The conveying part is a scraper conveyor with a discharging end capable of swinging up and down and left and right, is suitable for different material receiving points, and has a wide application range. The machine is provided with the cable winding device, can automatically wind and unwind cables along with the forward and backward movement of the whole machine, and solves the problems that the cables of the equipment are dragged along with the ground, are easy to damage and are difficult to manage. In addition, the coal mining machine of the embodiment does not improve control systems such as a ventilation system, an electrical system, a hydraulic system (i.e., connection between the oil cylinder and the hydraulic oil tank), and the like, so the detailed description thereof is omitted, and only the improved parts of the embodiment will be described below.
Specifically, in the present embodiment, the components and the operation principle thereof, which are not specifically described, can be directly selected and installed in a conventional manner in the existing coal mining apparatus. The main frame is a framework part of the coal mining machine in the embodiment and is mainly used for mounting other device components. A transformer room 3 is arranged above the main frame, and a dust remover 4 is arranged above the transformer room.
Referring to fig. 3 and 4, the cutting part 1 includes a cutting housing, a cutting drum 24 disposed in front of the cutting housing, a plurality of sets of cutting teeth 25 disposed on the cutting drum, a cutting decelerator 23 disposed in the cutting drum and connected to the cutting drum, a cutting motor 22 disposed in the cutting housing and connected to the cutting decelerator, and a cutting arm 21 and a cutting cylinder 11. The upper end of the cutting arm is fixed on the cutting shell, and the lower end of the cutting arm is inclined downwards and extends to be rotatably connected with the upper end of the front part of the main frame 15 through a cutting pin shaft 19. The number of the cutting oil cylinders 11 is two, the cylinder barrel end of each cutting oil cylinder is connected with the main frame 15, the piston rod end is connected with the bottom of the cutting shell in front of the cutting arm 21, and the cutting oil cylinders can pull the cutting part to swing to cut coal when stretching.
The coal baffle plate 26 is arranged on the side surface of the cutting arm 21, the shape, size and mounting position of the coal baffle plate 26 on the cutting arm 21 are designed according to the angle range of coal caving on the side without coal wall, the coal baffle plate 26 is fixed on the cutting arm 21 through a coal baffle pin 27, a stop block 28 welded on the cutting arm 21 presses the coal baffle plate 26, and when the cutting arm is lifted, the downward rotation of the cutting arm can be limited. The coal baffle 26 can block the falling coal to prevent the coal from falling out of the loading part 13, and the coal baffle 26 stops when touching the ground along with the descending of the cutting drum 24, while the cutting drum 24 continues to cut the coal downwards, and the coal baffle 26 does not affect the coal cutting and bottom lying of the cutting drum 24. In general, the coal blocking plate 26 is installed on the side without the coal wall, and the cutting arms 21 are symmetrical left and right, so the coal blocking plate 26 can be installed on any side of the cutting arms 21 according to actual working conditions.
The loading part 13 comprises a coal shoveling box body which is rotatably connected with the lower end of the front part of the main frame 15 through a loading pin shaft, a coal shoveling plate 14 which is arranged above the coal shoveling box body and used for shoveling coal, rake claws 20 which are arranged above the coal shoveling plate, a coal shoveling speed reducer and a coal shoveling motor which are arranged in the coal shoveling box body; the rake claw 20, the coal shoveling speed reducer and the coal shoveling motor are sequentially connected, so that the coal shoveling motor drives the rake claw to rotate, and coal is moved to the conveying part to be conveyed away; the number of the loading oil cylinders 12 is two, the cylinder end of each loading oil cylinder is connected with the main frame 15, the piston rod end is connected with the upper part of one side, close to the main frame, of the coal shoveling box body, and the loading oil cylinders can drag the loading part to swing up and down when stretching, so that coal loading and walking are facilitated. The coal shoveling plate 14 on the same side as the coal blocking plate 26 arranged on the cutting arm 21 is provided with a heightened and widened baffle 35, the heightened and widened baffle 35 increases the height and the width of the coal shoveling plate 14 on the side without the coal wall, and the coal blocked by the coal blocking plate 26 directly falls on the coal shoveling plate 14, so that the coal charging effect is enhanced.
Referring to fig. 5, the conveyor section is longitudinally disposed in the middle of the main frame 15 and below the transformer room 3. Conveying part 6 is single medium chain scraper conveyor, including the anterior conveyer trough body, middle part conveyer trough body and the rear portion conveyer trough body that meet in proper order to and set up the driving motor in rear portion conveyer trough body one side, carry reduction gear and conveying motor to link to each other, anterior conveyer trough body meets with the loading box body, in order to receive the coal that the shovel coal board was dialled, and middle part conveyer trough body sets up on main frame 15, and rear portion conveyer trough body meets through transport pin axle 29 and main frame rear portion. The middle part of the main frame 15 is provided with a downward connecting end, the connecting end is provided with a supporting oil cylinder 30, a piston rod of the supporting oil cylinder is connected with the rear conveying trough body, and the supporting oil cylinder can drive the rear conveying trough body to swing up and down when stretching out and drawing back so as to adjust the height of the unloading point and adapt to different unloading heights. The rear conveying trough body is divided into two sections, namely a first section of trough body 31 and a second section of trough body 32 which are connected through a pin shaft 33, and a swing oil cylinder 34 is arranged on the side surface and stretches out and draws back to drive the second section of trough body 32 to swing left and right to adapt to different unloading points.
The walking part 10 is fixedly arranged on two sides of the main frame to drive the whole equipment to walk, the walking part 10 is in a four-wheel-one-belt structure form and driven by a double-chain wheel, and a walking motor 7 is arranged above a track of the walking part. The electric room, the hydraulic oil tank 18 and the pump station 17 are arranged on the walking part 10, the frequency converter 9 and the high-low voltage control cabinets 16 and 8 are arranged in the electric room, and the cab 2 is positioned on the electric room. The walking motor 7 is a 690V alternating current variable frequency motor, has the advantages of wide speed regulation range, large starting torque, strong overload capacity and the like, and simultaneously, a closed-loop automatic control system is designed between the walking alternating current variable frequency motor 7 and the cutting motor 22, the walking alternating current variable frequency motor 7 is automatically fed back and controlled by the load of the cutting motor 22, and the mutual matching between the cutting power and the walking speed can be achieved. Two transformers in the transformer room convert the 6kV voltage of the strip mine into 690V, 3.3kV and 400V, and the 690V is supplied to the traveling motor 7. The 690V frequency converter 9 is located above the track.
Finally, the embodiment is also provided with a cable winding device 5, the structure of the cable winding device is basically the same as that of the existing cable winding device, the cable winding device is arranged at the upper end of the rear part of the main frame 15 and is positioned above the rear end of the conveying part, the cable winding device can automatically wind and discharge cables along with the forward and backward movement of the whole machine, and the problems that the cables of the equipment drag along with the ground, are easy to damage and are difficult to manage are solved.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (10)
1. An electrically driven crawler traveling type open-air continuous miner is characterized by comprising a main frame (15), wherein a transformer room (3) is arranged above the main frame, and a dust remover (4) is arranged above the transformer room;
the traveling parts (10) are fixedly arranged on two sides of the main rack so as to drive the whole equipment to travel; a hydraulic oil tank (18) is arranged above the walking part;
the electric room is provided with a cab (2) above;
the coal cutting machine comprises a cutting part (1), wherein the cutting part is rotatably arranged at the upper end of the front part of a main frame (15) through a cutting pin shaft (19), the lower part of the cutting part (1) is also connected with the main frame through a cutting oil cylinder (11), and the cutting oil cylinder can pull the cutting part to swing to cut coal when stretching;
the loading part (13) is rotatably arranged at the lower end of the front part of the main frame (15) through a loading pin shaft, and is also connected with the main frame through a loading oil cylinder (12), and the loading oil cylinder can drag the loading part to swing up and down when stretching so as to facilitate coal loading and walking;
the conveying part (6) is longitudinally arranged in the middle of the main rack (15) and is positioned below the transformer room (3), and the front end of the conveying part is connected with the loading part;
and the cable winding device (5) is arranged at the upper end of the rear part of the main frame (15) and is positioned above the rear end of the conveying part, and automatically winds and discharges cables along with the forward and backward movement of the whole machine.
2. The electrically driven crawler traveling shearer loader according to claim 1, wherein the cutting unit (1) comprises a cutting housing, a cutting drum (24) disposed in front of the cutting housing, a plurality of sets of cutting teeth (25) disposed on the cutting drum, a cutting decelerator (23) disposed in the cutting drum and connected to the cutting drum, a cutting motor (22) disposed in the cutting housing and connected to the cutting decelerator, and a cutting arm (21); the upper end of the cutting arm is fixed on the cutting shell, and the lower end of the cutting arm is inclined downwards and extends downwards and then is rotatably connected with the upper end of the front part of the main frame (15) through a cutting pin shaft (19).
3. An electrically driven crawler-traveling shearer loader according to claim 2, characterized in that there are two cutting cylinders (11), and the cylinder end of each cutting cylinder is connected to the main frame (15), and the piston rod end is connected to the bottom of the cutting casing in front of the cutting arm (21).
4. An electrically driven crawler-traveling shearer loader according to claim 3, characterized by further comprising a coal deflector (26) for preventing coal cut by the cutting section from falling out of the loading section (13) on the coal wall-free side of the cutting casing, the coal deflector being mounted to the upper end of the cutting arm (21) by a coal deflector pin (27); and a stop block (28) for limiting the coal baffle plate to rotate downwards is also fixed on the cutting arm (21).
5. The electrically driven crawler belt type shearer loader according to claim 4, wherein the loading part (13) comprises a coal shoveling box rotatably connected to the lower end of the front part of the main frame (15) by a loading pin, a coal shoveling plate (14) provided above the coal shoveling box for shoveling coal, rakes (20) provided above the coal shoveling plate, a coal shoveling reducer and a coal shoveling motor provided in the coal shoveling box; the rake claw (20), the coal shoveling speed reducer and the coal shoveling motor are sequentially connected, so that the coal shoveling motor drives the rake claw to rotate, and coal is moved to the conveying part to be conveyed away; the number of the loading oil cylinders (12) is two, the cylinder end of each loading oil cylinder is connected with the main frame (15), and the piston rod end is connected with the upper part of the coal shoveling box body close to one side of the main frame.
6. The electrically driven crawler belt type shearer loader according to claim 5, wherein the coal shoveling plates (14) on the same side as the coal deflector (26) are provided with a baffle plate (35) so that the coal which is stopped by the coal deflector can fall onto the coal shoveling plates.
7. The electrically driven crawler belt type shearer loader according to claim 6, wherein the conveyor unit (6) is a single-chain scraper conveyor, and comprises a front conveyor chute, a middle conveyor chute and a rear conveyor chute, which are connected in sequence, and a driving motor disposed at one side of the rear conveyor chute, the front conveyor chute is connected to the loading box to receive the coal from the coal shoveling plate, the middle conveyor chute is disposed on the main frame (15), and the rear conveyor chute is connected to the rear of the main frame through a conveying pin (29).
8. The electrically driven crawler belt type shearer loader according to claim 7, wherein the main frame (15) has a downward connecting end at the middle, the connecting end is provided with a supporting cylinder (30), a piston rod of the supporting cylinder is connected with the rear conveyor chute body, and the supporting cylinder can drive the rear conveyor chute body to swing up and down when the supporting cylinder extends and retracts, so as to adjust the height of the unloading point and adapt to different unloading heights.
9. The electrically-driven crawler belt-traveling type shearer loader according to claim 8, wherein the rear conveyor chute comprises a first section of chute body (31) and a second section of chute body (32) which are connected by a pin shaft, and a swing cylinder (34) arranged on the side surfaces of the first section of chute body (31) and the second section of chute body (32); the swing oil cylinder can drive the second groove body to swing left and right in a telescopic mode to adapt to different unloading points.
10. The electrically driven track walking type continuous miner according to any one of claims 7-9, wherein the walking part (10) is in a four-wheel and one-belt structure and is driven by a double-chain wheel, a walking motor (7) is arranged above the tracks of the walking part, the walking motor (7) is a 690V alternating current variable frequency motor, a closed-loop automatic control system is designed between the walking motor and the cutting motor (22), and the walking motor is automatically fed back and controlled by the load of the cutting motor, so that the cutting power and the walking speed can be matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920433425.XU CN210919035U (en) | 2019-04-02 | 2019-04-02 | Electrically-driven crawler traveling type open-air continuous miner |
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| CN201920433425.XU CN210919035U (en) | 2019-04-02 | 2019-04-02 | Electrically-driven crawler traveling type open-air continuous miner |
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| CN210919035U true CN210919035U (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005410A (en) * | 2019-04-02 | 2019-07-12 | 中国煤炭科工集团太原研究院有限公司 | A kind of electric drive caterpillar track travelling open continuous miner |
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2019
- 2019-04-02 CN CN201920433425.XU patent/CN210919035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005410A (en) * | 2019-04-02 | 2019-07-12 | 中国煤炭科工集团太原研究院有限公司 | A kind of electric drive caterpillar track travelling open continuous miner |
| CN110005410B (en) * | 2019-04-02 | 2024-09-03 | 中国煤炭科工集团太原研究院有限公司 | Electric drive crawler belt walking type continuous open coal mining machine |
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