CN203655283U - Four-roller coal cutter adopting double-roller cutting section - Google Patents
Four-roller coal cutter adopting double-roller cutting section Download PDFInfo
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- CN203655283U CN203655283U CN201320751229.XU CN201320751229U CN203655283U CN 203655283 U CN203655283 U CN 203655283U CN 201320751229 U CN201320751229 U CN 201320751229U CN 203655283 U CN203655283 U CN 203655283U
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Abstract
The utility model discloses a four-roller coal cutter adopting a double-roller cutting section. The four-roller coal cutter comprises a right cutting section and a left cutting section with the same structures, a left traction section and a right traction section with the same structure, a right traveling section and a left traveling section with the same structures, and a middle control tank, wherein each cutting section comprises two cutting rollers, which are respectively marked into a left-handed rotation cutting roller and a right-handed rotation cutting roller; the right-handed rotation cutting roller is opposite to the left-handed rotation cutting roller in the rotation direction. According to the coal cutter adopting the double-roller cutting section provided by the utility model, two rollers are arranged on each cutting section, so that the total coal containing rate is increased; the two cutting rollers are opposite in rotation direction, so that radial casting of a coal block can be effectively prevented, and coaling is facilitated; the coal cutting efficiency and the coaling efficiency are greatly improved, the utilization rate of cut teeth is improved, the service life of the overall machine is prolonged, and the overall machine is stable to run, good in coaling efficiency and low in fault rate.
Description
Technical field
The utility model relates to coal-winning machine, relates in particular to a kind of four flittings that adopt twin-roll cutting units.
Background technology
Twin-roll low seam mining machinery is with its safety, advantage is adopted by each large, medium and small colliery efficiently, twin-roll low seam mining machinery as shown in Figure 1, comprise right cutting units a7 and left cutting units a8 that structure is identical, the right tractive unit a9 that structure is identical and left tractive unit a10, the right running part a11 that structure is identical and left running part a12, and middle control cabinet a13, described right running part a11 and left running part a12 are fixedly mounted on respectively the side of right tractive unit a9 and left tractive unit a10, the both sides of control cabinet a13 in the middle of described right tractive unit a9 and left tractive unit a10 are docked at respectively, described right cutting units a7 is hinged on right tractive unit a9 by bearing pin A, described left cutting units a8 is hinged on left tractive unit a10 by bearing pin B.As shown in Figure 2, each cutting units comprises a cutting units housing (being rocking arm housing) a1, cutting motor a2, gear train assembly a3, clutch a4, internal spraying system a5, external spraying system, a cutting drum a6, and other accessories; It is upper that described cutting motor a2 is arranged on cutting units housing a1, and cutting motor a2 is connected with gear train assembly a3, after gear train assembly a3 slows down, is exported the power of cutting motor a2 output to cutting drum a6 by clutch a4; Internal spraying system a5 and external spraying system are used for the depositing dust of putting out a fire.
In being less than or equal to the recovery process thin or mining coal seam as thin as a wafer of 1.3 meters, this double-ended shearer will show problem, due to average balk, the reason such as unloading cross section that coal-winning machine machine height is short, diameter of cylinder is little, coal is mobile is little, make that effect of loading coal is bad, float coal amount is more, seriously restricting the further raising of output.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of four flittings that adopt twin-roll cutting units, to improve the effect of loading coal of cylinder, reduces float coal amount.
Technical scheme: for achieving the above object, the technical solution adopted in the utility model is:
A kind of four flittings that adopt twin-roll cutting units, comprise right tractive unit that right cutting units that structure is identical and left cutting units, structure are identical and left tractive unit, right running part and left running part and middle control cabinet that structure is identical, described right running part and left running gear are not fixedly mounted on the side of right tractive unit and left tractive unit, the both sides of control cabinet in the middle of described right tractive unit and left tractive unit are docked at respectively, described right cutting units is hinged on right tractive unit by bearing pin A, and described left cutting units is hinged on left tractive unit by bearing pin B; Described each cutting units includes two cutting drums, remembers that respectively two cutting drums are dextrorotation cutting drum and left-handed cutting drum, and the direction of rotation of described dextrorotation cutting drum and left-handed cutting drum is contrary.
This case is on the basis of existing double-ended shearer, increase a cutting drum to each cutting units, adopted a kind of twin-roll cutting units, total appearance coal rate of this cutting units has increased nearly one times, the efficiency that can greatly improve cutting units coal cutting and coaling; The switched in opposite of two cutting drums, can effectively prevent the radially impelling of coal cinder, is more conducive to coalingging of cutting drum.The diameter of two cutting drums and rotating speed can be determined according to actual operating mode, and the diameter of two cutting drums and rotating speed can be unequal; If the equal diameters of two cutting drums of design, rotary speed direction is contrary, equal and opposite in direction, more can effectively prevent the radially impelling of coal cinder, plays the effect of gear coal and combined reinforced defeated coal.
Preferably, described cutting units also comprises cutting units housing, cutting motor, clutch and gear train assembly, described cutting motor is fixedly mounted on cutting units housing and by clutch and is connected with gear train assembly, described gear train assembly adopts shunting structure that the power of cutting motor output is divided into two-way, one tunnel exports dextrorotation cutting drum to, and another road exports left-handed cutting drum to.
Concrete, described gear train assembly comprises a section axle, a lazy axle, section two axles, cuts three axles, section four axles, lazy two axles, section five axles, planetary mechanism one and planetary mechanism two, the power of described cutting motor output is passed to and cuts four axles through a section axle, a lazy axle, section two axles and section three axles successively by clutch, is split into two-way: a road is passed to dextrorotation cutting drum through lazy two axles, section five axles and planetary mechanism one successively from cutting four axles; Another road is passed to left-handed cutting drum through cutting three axles, section two axles and planetary mechanism two successively.
Described gear train assembly adopts oil lubrication, and gear oil adds in cutting units by oil filler, emits cutting units by fuel outlet, completes the object of changing gear oil; Inject gear oil in cutting units before, or block fuel outlet with plug screw after discharging gear oil, prevent leakage of oil, noted after gear oil oil filler is also stifled tight with plug screw.
Preferably, described cutting units also comprises internal spraying system and the external spraying system for the depositing dust of putting out a fire;
The number of described internal spraying system is two groups, remember that respectively two groups of internal spraying systems are dextrorotation internal spraying system and left-handed internal spraying system, described dextrorotation internal spraying system comprises inner sprayer unit one and nozzle, and described left-handed internal spraying system comprises inner sprayer unit two and nozzle; Wherein nozzle is installed on corresponding cutting drum, and inner sprayer unit is all in the planetary mechanism of corresponding cutting drum; The water inlet (the outer pipeline of machine) of described internal spraying system, after shunt valve is divided into two-way, is communicated with inner sprayer unit one and inner sprayer unit two respectively;
Described external spraying system comprises external spraying system water channel and nozzle, described external spraying system water channel is arranged in the wall of cutting units housing and (offers tank in cutting units housing outer surface, with forming water channel after Plate Welding), described nozzle is arranged on cutting units housing.
Adopted two groups of internal spraying systems, the water yield is many, spraying area is large, and current are through inner sprayer unit one and inner sprayer unit two, the part heat of cutting units inside can be taken away, and play the effect of cooling; Can by external spraying system water channel area coverage arrange greatly as far as possible, further to improve the effect of cooling.
Preferably, described gear train assembly is connected with cutting drum by square coupling head, guarantees to connect effect.
Preferably, also comprise two identical right adjust high cylinders of structure and left adjust high cylinder, one end of described right adjust high cylinder and right tractive unit are hinged, the other end and right cutting units hinged, right cutting units rotates around bearing pin A under the driving of right adjust high cylinder, thereby regulates the mining height scope of right cutting units; Described left adjust high cylinder one end and left tractive unit are hinged, the other end and left cutting units hinged, left cutting units rotates around bearing pin B under the driving of left adjust high cylinder, thereby regulates the mining height scope of left cutting units.By the adjusting to two adjust high cylinders in left and right, can adjust the mining height scope of a coal-winning machine.Heighten pumping plant and provide power for two adjust high cylinders, described in heighten pumping plant and be connected with two adjust high cylinders by electromagnetic valve group, respectively two adjust high cylinders are regulated, described in heighten pumping plant can be arranged in the middle of in the casing of control cabinet.
Preferably, be provided with separately one group of hydraulic brake system on described right tractive unit and left tractive unit, in the time of power-off, hydraulic brake system is braked coal-winning machine; Prevent that coal-winning machine from moving and hurting sb.'s feelings in the time of power-off, is especially more than or equal in 15 ° in seam inclination.
Beneficial effect: four flittings of the employing twin-roll cutting units that the utility model provides, on each cutting units, be provided with two cylinders, total appearance coal rate is increased; The switched in opposite of two cutting drums, can effectively prevent the radially impelling of coal cinder, is more conducive to coaling; Greatly improve coal cutting and loading efficiency, improved pick utilization rate, extended machine life; On the pin rail of the road wheel of running part on conveyer, move back and forth, thereby drive coal-winning machine reciprocal coal cutting, complete machine operates steadily, fill and do not have effective, failure rate is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing double-ended shearer;
Fig. 2 is the structural representation of existing cutting units;
Fig. 3 is main TV structure schematic diagram of the present utility model;
Fig. 4 is plan structure schematic diagram of the present utility model;
Fig. 5 is backsight structural representation of the present utility model;
Fig. 6 is the utility model coal-winning machine and the supporting middle part of drag conveyor sectional schematic diagram;
Fig. 7 is the main TV structure schematic diagram of twin-roll cutting units of the present utility model;
Fig. 8 is the sectional view of A-A in Fig. 7;
Fig. 9 is the plan structure schematic diagram of twin-roll cutting units of the present utility model;
Figure 10 is the backsight structural representation of twin-roll cutting units of the present utility model.
In figure: 1, right cutting units, 2, left cutting units, 3, left adjust high cylinder, 5, right running part, 6, right tractive unit, 7, drag conveyor, 8, middle control cabinet, 9, left tractive unit, 10, right adjust high cylinder, 11, left running part, 14, hydraulic means, 15, heighten pumping plant, 16, cable handler, 17, support piston shoes, 18, guide slip shoe, 19, channel for scraper transporter, 20, drag conveyor pin rail;
A1, cutting units housing, a2, cutting motor, a3, gear train assembly, a4, clutch, a5, internal spraying system, a6, cutting drum, a7, right cutting units, a8, left cutting units, a9, right tractive unit, a10, left tractive unit, a11, right running part, a12, left running part, a13, middle control cabinet;
B1, cutting units housing, b2, cutting motor, b3, a section axle, b4, a lazy axle, b5, section two axles, b6, section three axles, b7, section four axles, b8, lazy two axles, b9, section five axles, b10, planetary mechanism one, b11, inner sprayer unit one, b12, dextrorotation cutting drum, b13, left-handed cutting drum, b14, planetary mechanism two, b15, inner sprayer unit two, b16, gear train assembly, b17, clutch, b18, nozzle, b19, plug screw, b20, external spraying system, b21, internal spraying system, b22, shunt valve.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As Fig. 3～6 are depicted as a kind of four flittings that adopt twin-roll cutting units, comprise right running part 5 that right tractive unit 6 that right cutting units 1 that structure is identical and left cutting units 2, structure are identical and left tractive unit 9, structure are identical and left running part 11, two the identical right adjust high cylinders 10 of structure and left adjust high cylinder 3, middle control cabinet 8, hydraulic means 14, heighten pumping plant 15 and cable handler 16; In the middle of described, on the vertical front of control cabinet 8, be fixed with manual platform, on manual platform, be provided with electrical appliance button and isolating switch handle.
Described hydraulic means 14 and heighten pumping plant 15 be arranged on respectively in the middle of in the casing of control cabinet 8, hydraulic means 14 mainly needs cooling main parts size and inside and outside spraying system supplies water and controls to coal-winning machine.
The both sides of control cabinet 8 in the middle of described right tractive unit 6 and left tractive unit 9 are docked at respectively, and by thread, right tractive unit 6, left tractive unit 9 and middle control cabinet 8 are connected to entirety, described right cutting units 1 is hinged on right tractive unit 6 by bearing pin A, described left cutting units 2 is hinged on left tractive unit 9 by bearing pin B, described right running part 5 is fixed on by connecting screw rod on the side of right tractive unit 6, and described left running part 11 is fixed on by connecting screw rod on the side of left tractive unit 9; One end of described right adjust high cylinder 10 and right tractive unit 6 are hinged, the other end and right cutting units 1 hinged, right cutting units 1 rotates around bearing pin A under the driving of right adjust high cylinder 10, thereby regulates the mining height scope of right cutting units 1; Described left adjust high cylinder 3 one end and left tractive unit 9 are hinged, the other end and left cutting units 2 hinged, left cutting units 2 rotates around bearing pin B under the driving of left adjust high cylinder 3, thereby regulates the mining height scope of left cutting units 2.
On described right tractive unit 6 and left tractive unit 9, be provided with separately one group of hydraulic brake system, in the time of power-off, hydraulic brake system is braked coal-winning machine.The all hydraulic valve control member of whole coal-winning machine is all arranged on hydraulic means 14, convenient manipulation.
Described cable handler 16 is fixed on middle control cabinet 8, for fixing and drag leader cable and water pipe.
As Fig. 7～10 are depicted as the twin-roll cutting units structure that this case is used, comprise a cutting units housing b1, cutting motor b2, clutch b17, gear train assembly b16, internal spraying system b21, external spraying system b20 and cutting drum, described cutting motor b2 is arranged on cutting units housing b1, and cutting motor b2 is connected with gear train assembly b16 by clutch b17, after slowing down, gear train assembly b16 exports the power of cutting motor b2 output to cutting drum, described gear train assembly b16 is connected with cutting drum by square coupling head, described internal spraying system b21 and external spraying system b20 are used for the depositing dust of putting out a fire, the number of described cutting drum is two, remember that respectively two cutting drums are dextrorotation cutting drum b12 and left-handed cutting drum b13, described gear train assembly b16 adopts shunting structure that the power of cutting motor b2 output is divided into two-way, one tunnel exports dextrorotation cutting drum b12 to, and another road exports left-handed cutting drum b13 to, the direction of rotation of described dextrorotation cutting drum b12 and left-handed cutting drum b13 is contrary.
Described gear train assembly b16 comprises section an axle b3, a lazy axle b4, cuts two axle b5, cuts three axle b6, cuts four axle b7, lazy two axle b8, cuts five axle b9, planetary mechanism one b10 and planetary mechanism two b14, the power of described cutting motor b2 output is passed to and cuts four axle b7 through section an axle b3, a lazy axle b4, section two axle b5 and section three axle b6 successively by clutch b17, is split into two-way: a road is passed to dextrorotation cutting drum b12 through lazy two axle b8, section five axle b9 and planetary mechanism one b10 successively from cutting four axle b7; Another road is passed to left-handed cutting drum b13 through cutting three axle b6, section two axle b5 and planetary mechanism two b14 successively.
Described gear train assembly b16 adopts oil lubrication, and gear oil adds in cutting units by oil filler, emits cutting units by fuel outlet, completes the object of changing gear oil; Inject gear oil in cutting units before, or discharge after gear oil and block fuel outlet with plug screw b19, prevent leakage of oil, noted after gear oil oil filler is also stifled tight with plug screw b19.
The number of described internal spraying system b21 is two groups, remember that respectively two groups of internal spraying system b21 are dextrorotation internal spraying system and left-handed internal spraying system, described dextrorotation internal spraying system comprises inner sprayer unit one b11 and nozzle b18, and described left-handed internal spraying system comprises inner sprayer unit two b15 and nozzle b18; Wherein dextrorotation internal spraying system is arranged in dextrorotation cutting drum b12, and left-handed internal spraying system is arranged in left-handed cutting drum b13; Described nozzle b18 is arranged on respectively on corresponding cutting drum; The water inlet of described internal spraying system b21 is divided into after two-way through shunt valve b22, is communicated with respectively with inner sprayer unit one b11 and inner sprayer unit two b15.
Described external spraying system b20 comprises external spraying system water channel and nozzle b18, and described external spraying system water channel is arranged in the wall of cutting units housing b1, and described nozzle b18 is arranged on cutting units housing b1.
When use, support piston shoes 17 are arranged on respectively on right tractive unit 6 and left tractive unit 9, the two ends of control cabinet 8 in the middle of right tractive unit 6 and left tractive unit 9 are docked at respectively, and by thread by fastening its three in aggregates, guide slip shoe 18 is arranged on respectively on right running part 5 and left running part 11, right running part 5 and left running part 11 are fixed on respectively to the side of right tractive unit 6 and left tractive unit 9, right cutting units 1 is arranged on right tractive unit 6, and the two ends of right adjust high cylinder 10 are hinged with right cutting units 1 and right tractive unit 6 respectively, left cutting units 2 is arranged on left tractive unit 9, and the two ends of left adjust high cylinder 3 are hinged with left cutting units 2 and left tractive unit 9 respectively, cable handler 16 is arranged on middle control cabinet 8, the complete machine assembling is placed on drag conveyor 7, support piston shoes 17 and the channel for scraper transporter 19 of fuselage one side overlap, the guide slip shoe 18 of fuselage opposite side coordinates with drag conveyor pin rail 20, coal-winning machine complete machine is played to the effect of supporting and leading, leader cable is connected with corresponding interface on coal-winning machine with water pipe, and be fixed on cable handler 16.
Before start, coal-winning machine is supplied water, by hydraulic means 14, coal-winning machine main parts size is supplied water as it cools, and internally external spraying water supply is used for the depositing dust of putting out a fire.Coal-winning machine is powered and opened coal-winning machine, start cutting motor b2, cutting motor b2 is connected with gear train assembly b16 by clutch b17, after gear train assembly b16 reduction of speed, being delivered to dextrorotation cutting drum b12 and left-handed cutting drum b13 goes up for coal breakage and coalings, by regulating right adjust high cylinder 10 and left adjust high cylinder 3 respectively the mining height scope of right cutting units 1 and left cutting units 2 to be regulated, thus the exploitation work of adaptation work plane.In the time that coal-winning machine is not worked, clutch b17 is placed in to disengaging engagement, convenient maintenance and plant maintenance, protection staff's safety; The water channel of external spraying system b20 all designs in the wall of cutting units housing b1, the water channel of water on cutting units housing b1 is directly used for from nozzle b18 ejection the depositing dust of putting out a fire, safe and reliable, difficult leakage, and the contact area of water channel and cutting units housing b1 is large, to the good cooling results of cutting units; In internal spraying system b21, water is divided into two-way after machine outer water pipe distributes by shunt valve b22, one tunnel enters the water channel on dextrorotation cutting drum b12 through inner sprayer unit one b11, spray by dextrorotation cutting drum b12 top nozzle 18 dedusting of putting out a fire, another road enters the water channel on left-handed cutting drum b13 through inner sprayer unit two b15, sprays by the nozzle b18 on left-handed cutting drum b13 the dedusting of putting out a fire; Water channel on the water channel of water on cutting units housing b1, inner sprayer unit one b11, inner sprayer unit b15, dextrorotation cutting drum b12 and the water channel on left-handed cutting drum b13 are taken away heat on cutting units, thereby arrive the object cooling.Open the tractive unit motor of coal-winning machine, start coal-winning machine and make it on drag conveyor 7, back and forth walk and complete coal breakage and the work of coalingging along the pin rail 20 of drag conveyor.
Existing double-ended shearer is to adopt overall height with two cutting drums, four flittings of this case are to adopt overall height with four cutting drums, in the time of apolegamy cutting drum diameter, can choose the smaller condition of diameter as far as possible, break through selection cut and rolled diameter and must be greater than the limit of adopting overall height 1/2nd, thereby reduced cutting resistance.Coal-winning machine is in the time of coal cutting, and the switched in opposite of two cutting drums, can effectively prevent the radially impelling of coal cinder, is more conducive to coaling, and has greatly improved coal cutting and loading efficiency, has improved pick utilization rate, has extended machine life.
The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. one kind adopts four flittings of twin-roll cutting units, comprise right cutting units (1) and left cutting units (2) that structure is identical, the right tractive unit (6) that structure is identical and left tractive unit (9), the right running part (5) that structure is identical and left running part (11), and middle control cabinet (8), described right running part (5) and left running part (11) are fixedly mounted on respectively the side of right tractive unit (6) and left tractive unit (9), the both sides of control cabinet (8) in the middle of described right tractive unit (6) and left tractive unit (9) are docked at respectively, described right cutting units (1) is hinged on right tractive unit (6) by bearing pin A, described left cutting units (2) is hinged on left tractive unit (9) by bearing pin B, it is characterized in that: described each cutting units includes two cutting drums, remember that respectively two cutting drums are dextrorotation cutting drum (b12) and left-handed cutting drum (b13), the direction of rotation of described dextrorotation cutting drum (b12) and left-handed cutting drum (b13) is contrary.
2. four flittings of employing twin-roll cutting units according to claim 1, it is characterized in that: described cutting units also comprises cutting units housing (b1), cutting motor (b2), clutch (b17) and gear train assembly (b16), described cutting motor (b2) is fixedly mounted on cutting units housing (b1), and be connected with gear train assembly (b16) by clutch (b17), described gear train assembly (b16) adopts shunting structure that the power of cutting motor (b2) output is divided into two-way, one tunnel exports dextrorotation cutting drum (b12) to, another road exports left-handed cutting drum (b13) to.
3. four flittings of employing twin-roll cutting units according to claim 2, it is characterized in that: described gear train assembly (b16) comprises a section axle (b3), a lazy axle (b4), cut two axles (b5), cut three axles (b6), cut four axles (b7), lazy two axles (b8), cut five axles (b9), planetary mechanism one (b10) and planetary mechanism two (b14), the power of described cutting motor (2) output cuts an axle (b3) by clutch (b17) successively warp, a lazy axle (b4), cut two axles (b5) and cut three axles (b6) and be passed to section four axles (b7), be split into two-way from cutting four axles (b7): a road is successively through lazy two axles (b8), cut five axles (b9) and planetary mechanism one (b10) and be passed to dextrorotation cutting drum (b12), another road is passed to left-handed cutting drum (b13) through cutting three axles (b6), section two axles (b5) and planetary mechanism two (b14) successively.
4. four flittings of employing twin-roll cutting units according to claim 2, is characterized in that: described cutting units also comprises for the internal spraying system of the depositing dust of putting out a fire (b21) and external spraying system (b20);
The number of described internal spraying system (b21) is two groups, remember that respectively two groups of internal spraying systems (b21) are dextrorotation internal spraying system and left-handed internal spraying system, described dextrorotation internal spraying system comprises inner sprayer unit one (b11) and nozzle (b18), and described left-handed internal spraying system comprises inner sprayer unit two (b15) and nozzle (b18); Wherein dextrorotation internal spraying system is arranged in dextrorotation cutting drum (b12), nozzle (b18) is arranged on the blade of dextrorotation cutting drum (b12), left-handed internal spraying system is arranged in left-handed cutting drum (b13), and nozzle (b18) is arranged on the blade of left-handed cutting drum (b13); The water inlet of described internal spraying system (b21) is divided into after two-way through shunt valve (b22), is communicated with respectively with inner sprayer unit one (b11) and inner sprayer unit two (b15);
Described external spraying system (b20) comprises external spraying system water channel and nozzle (b18), and described external spraying system water channel is arranged in the wall of cutting units housing (b1), and described nozzle (b18) is arranged on cutting units housing (b1).
5. four flittings of employing twin-roll cutting units according to claim 1, it is characterized in that: also comprise two identical right adjust high cylinders of structure (10) and left adjust high cylinder (3), one end of described right adjust high cylinder (10) and right tractive unit (6) are hinged, the other end and right cutting units (1) hinged, right cutting units (1) rotates around bearing pin A under the driving of right adjust high cylinder (10); Described left adjust high cylinder (3) one end and left tractive unit (9) are hinged, the other end and left cutting units (2) hinged, left cutting units (2) rotates around bearing pin B under the driving of left adjust high cylinder (3).
6. four flittings of employing twin-roll cutting units according to claim 1, it is characterized in that: on described right tractive unit (6) and left tractive unit (9), be provided with separately one group of hydraulic brake system, in the time of power-off, hydraulic brake system is braked coal-winning machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751229.XU CN203655283U (en) | 2013-11-25 | 2013-11-25 | Four-roller coal cutter adopting double-roller cutting section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751229.XU CN203655283U (en) | 2013-11-25 | 2013-11-25 | Four-roller coal cutter adopting double-roller cutting section |
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| Publication Number | Publication Date |
|---|---|
| CN203655283U true CN203655283U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751229.XU Withdrawn - After Issue CN203655283U (en) | 2013-11-25 | 2013-11-25 | Four-roller coal cutter adopting double-roller cutting section |
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| CN (1) | CN203655283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590829A (en) * | 2013-11-25 | 2014-02-19 | 江苏中机矿山设备有限公司 | Four-roller coal cutter adopting double-roller cutting parts |
| CN104405381A (en) * | 2014-08-26 | 2015-03-11 | 三一重型装备有限公司 | Cutting portion, and coal mining machine with cutting portion |
| CN105092119A (en) * | 2015-04-29 | 2015-11-25 | 辽宁工程技术大学 | Simulated downhole coal wall internal stress testing system |
-
2013
- 2013-11-25 CN CN201320751229.XU patent/CN203655283U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590829A (en) * | 2013-11-25 | 2014-02-19 | 江苏中机矿山设备有限公司 | Four-roller coal cutter adopting double-roller cutting parts |
| CN103590829B (en) * | 2013-11-25 | 2015-12-23 | 江苏中机矿山设备有限公司 | A kind of four flittings adopting twin-roll cutting units |
| CN104405381A (en) * | 2014-08-26 | 2015-03-11 | 三一重型装备有限公司 | Cutting portion, and coal mining machine with cutting portion |
| CN105092119A (en) * | 2015-04-29 | 2015-11-25 | 辽宁工程技术大学 | Simulated downhole coal wall internal stress testing system |
| CN105092119B (en) * | 2015-04-29 | 2017-08-25 | 辽宁工程技术大学 | Simulate underground rib internal stress test system |
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