CN217735471U - Double-discharging coal seam cutting device - Google Patents
Double-discharging coal seam cutting device Download PDFInfo
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- CN217735471U CN217735471U CN202121763381.0U CN202121763381U CN217735471U CN 217735471 U CN217735471 U CN 217735471U CN 202121763381 U CN202121763381 U CN 202121763381U CN 217735471 U CN217735471 U CN 217735471U
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Abstract
The utility model discloses a double-discharging coal seam cutting device, which comprises a double-discharging spiral cutter, a left driving travelling mechanism and a right driving travelling mechanism; the left driving travelling mechanism and the right driving travelling mechanism respectively comprise a travelling platform, a driving motor or a hydraulic motor and a reinforcing support frame, the driving motor is installed on the travelling platform, a support sleeve corresponding to an output rotating shaft of the driving motor is arranged at the end part of the reinforcing support frame, the double-material-discharging spiral cutter comprises a left-handed section and a right-handed section which are opposite in spiral direction, the middle parts of the left-handed section and the right-handed section are fixedly connected together, the outer ends of the left-handed section and the right-handed section are respectively sleeved in the support sleeves on the corresponding sides and are in transmission connection with the output rotating shaft.
Description
Technical Field
The utility model belongs to the technical field of colliery gas is administered, concretely relates to double-discharging coal seam cutting device.
Background
The most common means for treating the gas in the coal mine underground coal seam in China is to arrange dense drill holes, guide a negative pressure pipeline into the drill holes after plugging, and extract the gas existing in the coal seam by using the negative pressure pipeline, so that the gas concentration in the coal seam is reduced, and the production safety in the later coal seam mining process is ensured.
The existing drilling mode mostly adopts the arrangement of dense drilling, a plurality of holes communicated with a roadway are formed in a coal seam, hole sealers are arranged in each hole, and each hole sealer pumping hole and a negative pressure pipeline form a negative pressure pipeline network for gas extraction, and the mode has the following problems:
1. the drilling is dense, the unit area and the number of the drilled holes are large, the manpower and material resources consumed by each drilled hole are large, and the added value is low;
2. the hole diameter of the drill hole is limited, the effective area of gas released by the coal bed is small, the gas is slowly desorbed in the coal bed, and the extraction period is long;
3. accidents such as gas outburst and orifice spraying and the like easily occur in the drilling, the safety coefficient is low, and the accidents are easily caused;
4. the hole collapse phenomenon is easy to occur in the drilled hole, and the gas is not easy to release and extract;
5. the drilling is accompanied with the processes of hydraulic flushing, high-pressure water fracturing, cave building and the like, the manpower and financial resources are consumed, and the manual workload is large;
the existing process also has the problem that the hydraulic punching gas extraction technology is adopted to improve the air permeability of the coal body, and the problems of frequent gas overrun, easy artificial induction outburst and the like exist in the execution process.
Therefore, the existing drilling mode for treating the gas has the problems of a large number of drilled holes, complex construction process, high labor intensity, high investment of manpower, material resources and financial resources and high maintenance cost, so that a new process and a new technology which can replace low treatment cost of the gas in the coal mine and matched high-performance mining mechanical equipment need to be found urgently, and therefore, the double-discharging coal seam cutting device is necessary to be researched based on the new technology and the matched high-performance mining mechanical equipment.
Disclosure of Invention
To the defect and the problem that existing equipment exists, the utility model provides a double-row material coal seam cutting device, the effectual coal seam exploitation degree of difficulty that exists of having solved among the existing equipment is big, the high problem of input cost.
The utility model provides a scheme that its technical problem adopted is: a double-discharging coal seam cutting device comprises a double-discharging spiral cutter, a left driving travelling mechanism and a right driving travelling mechanism; left side drive running gear is the same with right side drive running gear structure, all includes walking platform and driving motor or hydraulic motor, driving motor or hydraulic motor install on walking platform to be provided with the support cover that corresponds with driving motor or hydraulic motor output shaft on walking platform, double material spiral cutting tool includes two opposite spiral direction's levogyration section and dextrorotation section, levogyration section and dextrorotation section middle part fixed connection are in the same place, and both outer ends suit respectively is in the support cover that corresponds the side to be connected with output shaft transmission.
Furthermore, a reinforcing support frame is fixed on one side of the walking platform, and a support sleeve corresponding to an output rotating shaft of the driving motor or the hydraulic motor is arranged at the end part of the reinforcing support frame.
Furthermore, a walking crawler belt is arranged on the walking platform, a supporting oil cylinder is arranged on the walking platform along the vertical direction, a supporting seat is arranged on the upper portion of the supporting oil cylinder, and the driving motor or the hydraulic motor is arranged on the supporting seat.
Furthermore, the levogyration section and the dextrorotation section include columniform center pin and spiral cutter body, and the cutter body sets up in the outside of center pin to form spiral helicine discharge passage in the center pin outside, the outside interval of cutter body is provided with bellied tool bit.
Furthermore, the left-handed segment and the right-handed segment are of an integral structure and have the same length.
Furthermore, double-row material spiral cutter includes center pin, levogyration cutter body and dextrorotation cutter body, and the length of levogyration cutter body is the same with dextrorotation cutter body, and the spiral direction of two cutter bodies is opposite, and the middle part butt joint is fixed together, and the both ends of center pin are the transmission respectively and are connected in the output pivot of both sides.
The utility model has the advantages that: the utility model discloses lie in full coal seam slot technology method and equipment embodiment, adopt the spiral cutting knife to the spiral discharge slot buggy in both sides, improved the discharge of slot efficiency and slot buggy, greatly improved the coal seam gas permeability simultaneously, reduce the intensity of labour and the gas drainage cycle of drilling construction, adopt helical blade to inlay the mode of cutting knife, to the coal seam one gap of cutting, to the permeability-increasing of coal seam release. The novel gas treatment process method has the advantages that the spiral cutter cuts the seams, coal is discharged towards two sides during the cutting of the seams, intelligent operation equipment is adopted, and the underground construction safety is improved.
The utility model discloses the structure aims at utilizing the working face tunnel condition in the coal seam, utilize the soft layering of certain thickness in the direct saw coal seam of double-row material coal seam cutting device, form the extraction of the whole coal body in the coal seam of working face within range, vacuole formation, make soft layering top coal body take place down displacement and expansion deformation, soft layering bottom coal body takes place upward displacement and expansion deformation, thereby make the whole inflation of the coal body of not saw in the coal seam and adopting, the crack increases, increase the passageway of gas release. So that a large amount of gas in the coal body is naturally discharged to enter a roadway space of a working face under the influence of mining.
The utility model discloses changed the technological mode that current gas was administered, for implementing new coal seam construction process and providing equipment support, reduced the work load in tunnelling tunnel in the pit, equipment overall structure is simple, conveniently extracts coal seam gas, improves the security of coal seam exploitation. Compared with the traditional permeability increasing method, the labor intensity of drilling construction and the gas extraction period are reduced, meanwhile, a gas extraction blank zone caused by the deviation of a drilling track is eliminated, and the effectiveness of the outburst prevention effect is improved. In addition, automatic control can be realized in the cutting process, and potential safety hazards which may be caused are greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the driving and traveling mechanism.
Fig. 4 is a schematic structural diagram of a double-row spiral cutter.
Fig. 5 is a usage state diagram of the present invention.
The reference numbers in the figures are: the cutting machine comprises a walking platform 1, a driving motor or a hydraulic motor 2, an output rotating shaft 3, a support sleeve 4, a reinforcing support frame 5, a double-row spiral cutter 6, a left-handed section 61, a right-handed section 62, a central shaft 63, a cutter head 64, a left-handed conductor 611 and a right-handed cutter body 621.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: this embodiment aims at providing a double-discharging coal seam cutting device, and mainly used "returns" type tunnel construction system for cut the coal seam, produce the cutting joints, to current coal seam construction mode, the coal seam exploitation degree of difficulty is big, and the input cost is high, and based on this, this embodiment provides a double-discharging coal seam cutting device.
As shown in figure 1, the double-discharging coal seam cutting device comprises a double-discharging spiral cutter 6, a left driving travelling mechanism and a right driving travelling mechanism; the left driving travelling mechanism and the right driving travelling mechanism are respectively positioned in the roadways at two sides, the double-row spiral cutter 6 is positioned in the coal seam, and two end parts of the double-row spiral cutter penetrate through the coal seam and are in transmission connection with the left driving travelling mechanism and the right driving travelling mechanism which are positioned at two sides.
Left side drive running gear and right side drive running gear structure are the same in this embodiment, all include walking platform 1, driving motor or hydraulic motor 2 and strengthen support frame 5, and driving motor or hydraulic motor 2 installs on walking platform 1, and one side of walking platform 1 is fixed with strengthens support frame 5, and the tip of strengthening support frame 5 is provided with the support cover 4 that corresponds with driving motor or hydraulic motor 2's output pivot 3.
Support cover 4 is bearing or axle sleeve, strengthens support frame 5 and includes the fixed brace of level and bracing that an organic whole set up, and the fixed brace of level is fixed on the supporting seat, and the tip of bracing sets up the outer tube, and bearing or axle sleeve suit are at the outer tube to set up a set of or multiunit.
In order to realize the walking function, the walking platform 1 is provided with a walking crawler belt, the walking platform is provided with a supporting oil cylinder vertically arranged, the upper part of the supporting oil cylinder is provided with a supporting seat, and the supporting oil cylinder is used for adjusting the height of the supporting seat so as to enable the double-discharging spiral cutter 6 to be matched with the height of the cutting seam; driving motor or hydraulic motor 2 and speed reducer are installed on the supporting seat, strengthen support frame 5 and fix in one side of supporting seat, strengthen the tip of support frame 5 and be provided with the support cover 4 that corresponds with driving motor or hydraulic motor's output pivot, still be provided with the operation workstation simultaneously at the tip of backup pad, be provided with operating handle and instrument etc. on the operation workstation.
The double-discharging spiral cutter 6 comprises a left-handed section 61 and a right-handed section 62 which have opposite spiral directions, the middle parts of the left-handed section 61 and the right-handed section 62 are fixedly connected together, and the outer ends of the left-handed section and the right-handed section are respectively sleeved in the support sleeves 4 on the corresponding sides and are in transmission connection with the output rotating shaft 3.
When the working face machine tunnel air way and the primary cutting hole are formed in the coal seam, the working face machine tunnel air way is constructed at a certain distance outside a working face stoping line, and a 'return' type tunnel system is formed in a mining section. The double-discharging coal seam cutting device is arranged on a working face and used for coal seam slotting, the sawing and mining thickness can be controlled to be about 200mm, the slotting thickness is not too large during implementation, coal and gas outburst accidents during slotting can be prevented, coal of the slotting is discharged to two sides through the spiral blades, a machine lane and an air lane space can be conveyed out by using an automatic control chain plate machine in the machine lane and the air lane, and the double-side spiral coal seam slotting equipment is located outside a machine air lane combined lane. High-strength sealing walls in the machine tunnel and the air tunnel are arranged at the outer openings of the machine tunnel and the air tunnel of the working face and the air tunnel and at the joint inner side position of the machine tunnel and the air tunnel to seal the space of the coal sawing system of the working face; after the seam is cut, a space for displacement and expansion deformation is created for the coal body outside the seam of the coal seam, so that the number of fractures of the coal body is increased, the desorption and the emission of gas are accelerated, and high-concentration gas in the seam space is extracted by using a gas extraction pipe, so that the pressure relief extraction of the gas in the coal body of the mining section is realized, and the purpose that the content of the gas in the coal seam is lower than the production standard value is achieved.
Example 2: this example is substantially the same as example 1, except that: the embodiment further illustrates the specific structure of the double-discharging spiral cutter.
The left-hand section 61 and the right-hand section 62 in the present embodiment include a driving section and a cutting section; the driving section is of a cylindrical structure, is sleeved on the supporting sleeve 4 and is in transmission connection with the output rotating shaft 3, the cutting section comprises a cylindrical central shaft and a spiral cutter body, the cutter body is arranged on the outer side of the central shaft and forms a spiral discharge channel on the outer side of the central shaft, and the outer side of the cutter body is provided with convex cutter heads 64 at intervals.
Levogyration section and dextrorotation section structure as an organic whole in this embodiment, and both length are the same, and specific setting mode can levogyration section and dextrorotation section be two solitary structures to adopt the welded mode fixed together.
Example 3: this example is substantially the same as example 1, except that: the present embodiment further illustrates the structure of the double-discharging spiral cutter 6.
The double-discharging spiral cutter 6 in this embodiment comprises a central shaft 63, a left-handed cutter body 611 and a right-handed cutter body 621, the left-handed cutter body 611 and the right-handed cutter body 621 are the same in length, the two cutter bodies are opposite in spiral direction, the middle portions of the two cutter bodies are fixedly butted, and the two ends of the central shaft are respectively connected to the output rotating shafts on the two sides in a transmission manner.
This embodiment levogyration section and dextrorotation section coaxial setting are about to the levogyration cutter body and the dextrorotation cutter body that spiral opposite direction set up on the center pin jointly to improve overall structure's stability.
Claims (6)
1. The utility model provides a double-discharging coal seam cutting device which characterized in that: comprises a double-row spiral cutter, a left driving travelling mechanism and a right driving travelling mechanism; left side drive running gear is the same with right side drive running gear structure, all includes walking platform and driving motor or hydraulic motor, driving motor or hydraulic motor install on walking platform to be provided with the support cover that corresponds with driving motor or hydraulic motor output shaft on walking platform, double material spiral cutting tool includes two opposite spiral direction's levogyration section and dextrorotation section, levogyration section and dextrorotation section middle part fixed connection are in the same place, and both outer ends suit respectively is in the support cover that corresponds the side to be connected with output shaft transmission.
2. The dual discharge seam cutting apparatus of claim 1, wherein: a reinforced support frame is fixed on one side of the walking platform, and a support sleeve corresponding to an output rotating shaft of a driving motor or a hydraulic motor is arranged at the end part of the reinforced support frame.
3. The dual discharge seam cutting apparatus of claim 1, wherein: the walking platform is provided with a walking crawler belt, the walking platform is provided with a supporting oil cylinder vertically arranged, the upper part of the supporting oil cylinder is provided with a supporting seat, and the driving motor or the hydraulic motor is arranged on the supporting seat.
4. The dual discharge seam cutting apparatus of claim 1, wherein: levogyration section and dextrorotation section include columniform center pin and spiral helicine cutter body, and the cutter body sets up in the outside of center pin to form spiral helicine discharge passage in the center pin outside, the outside interval of cutter body is provided with bellied tool bit.
5. The dual discharge seam cutting apparatus of claim 1, wherein: the left-handed section and the right-handed section are of an integral structure and have the same length.
6. The dual discharge seam cutting apparatus of claim 1, wherein: the double-row spiral cutter comprises a central shaft, a left-handed cutter body and a right-handed cutter body, wherein the left-handed cutter body and the right-handed cutter body are the same in length, the two cutter bodies are opposite in spiral direction, the middle parts of the two cutter bodies are fixedly butted together, and the two ends of the central shaft are respectively in transmission connection with output rotating shafts on the two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763381.0U CN217735471U (en) | 2021-07-30 | 2021-07-30 | Double-discharging coal seam cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763381.0U CN217735471U (en) | 2021-07-30 | 2021-07-30 | Double-discharging coal seam cutting device |
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| Publication Number | Publication Date |
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| CN217735471U true CN217735471U (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121763381.0U Active CN217735471U (en) | 2021-07-30 | 2021-07-30 | Double-discharging coal seam cutting device |
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| CN (1) | CN217735471U (en) |
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2021
- 2021-07-30 CN CN202121763381.0U patent/CN217735471U/en active Active
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