CN101509373B - Semiclosed drum of coal cutter with coal ploughing plate - Google Patents
Semiclosed drum of coal cutter with coal ploughing plate Download PDFInfo
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- CN101509373B CN101509373B CN2009100474581A CN200910047458A CN101509373B CN 101509373 B CN101509373 B CN 101509373B CN 2009100474581 A CN2009100474581 A CN 2009100474581A CN 200910047458 A CN200910047458 A CN 200910047458A CN 101509373 B CN101509373 B CN 101509373B
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- coal
- blade
- loading
- ploughing
- vane
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- 239000003245 coal Substances 0.000 title claims abstract description 64
- 238000003466 welding Methods 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000011295 pitch Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000005065 mining Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 241000748095 Hymenopappus filifolius Species 0.000 description 1
- 102000015933 Rim-like Human genes 0.000 description 1
- 108050004199 Rim-like Proteins 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
A semiclosed roller with a plough plate of a coal-winning machine belongs to the technical field of coal mine machinery and comprises a roller case, an end plate, a cutting vane, a conduit pipe, a loading vane, a plough plate, a toothholder, a cutting pick, a nozzle holder and a nozzle; wherein, the cutting vane, the loading vane and the plough plate all incline toward the loading surface and are assembled and welded; by twice inclination of the cutting vane and the loading vane toward the loading surface of a helical blade of the roller, the total inclination angle of the loading vane at the periphery of the roller is larger than the friction angle of coal and steel, which can effectively inhibit coal falling into a helical blade groove of the roller from being thrown from the tangential direction of the roller. In the invention, the plough plate is arranged at the tail end of the loading vane, which can effectively improve the loading capacity of the roller. In addition, a closing plate can effectively avoid the disadvantage that the increase of the outer margin width of the entire roller vane caused by larger inclination angle of the loading vane can lead to secondary crash of falling coal, can increase the moment of inertia of the roller and improve the working stationarity.
Description
Technical field
What the present invention relates to is a kind of device of coal mine machinery technical field, specifically is a kind of Semiclosed drum of coal cutter with coal ploughing plate.
Background technology
The coal mining machine roller major function is coal cutting and loading, and coal mining machine roller all is that blade and drum housing are vertically arranged both at home and abroad at present.For low seam mining machinery, its drum rotation speed is higher, when coal also is not able to do in time by cylinder propelling transporter usually, just be thrown on the machine road, thereby cause the loading effect of girdle cylinder generally relatively poor, and can produce a large amount of coal dusts, directly influence the healthy of workman.The movement locus of the coal that cylinder is cut down mainly contains both direction: axially-movable and tangential motion.Wherein: axially-movable can be delivered to coal in the transporter, is favourable motion; And tangential motion is tangentially dished out coal, from the opposite side of turning on one's side, falls on the machine road, belongs to unfavorable motion.And the low seam mining machinery cylinder generally all is a cylinder revolution height and the blade helical pitch is less, so just cause blade on barrel around angle bigger, coal just is not easy to be released along axis by helical blade, the axially-movable difficulty, add the centrifugal force that coal mining machine roller rotation coal supply brings, a considerable amount of coals are dished out from the tangential direction of cylinder, be trapped on the machine road, so the loading effect of low seam mining machinery is generally relatively poor, be reality and problem demanding prompt solution.
Through existing technical literature retrieval being found China Patent No. ZL96227991.9 authorizes publication number CN2273771Y to put down in writing a kind of " the non-uniform vane drum of coal-winning machine ", its principal character is that A, B, C primary blades 3 are non-uniform on barrel 1.Behind the A blade location, the positioned at intervals that B and A, C and B blade are 111 °～116 °, A and C blade are pressed 128 °～138 ° positioned at intervals.Be welded with-7 °～-10 ° loading blade 4 at the face of coalingging of A, B, C primary blades 3, be welded with special-purpose vanelets 9 at its tail end.The defective of this device is: primary blades is perpendicular to the barrel assembly welding, only loading blade tilts 7 °～10 ° to the loading surface of cylinder blade, though can improve the delivered payload capability of cylinder, but 7 °～10 ° inclination angle is much smaller than the angle of friction of coal and steel, and the uncontrollable coal that falls into cylinder helical blade groove is dished out from the cylinder tangential direction.In patent ZL96227991.9, the set vanelets that is welded on cylinder cut blade tail end is just guaranteed the reinforcement effect that its cut blade is not torn in the cylinder coal cutting process, and does not have the function that improves the cylinder delivered payload capability.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, a kind of Semiclosed drum of coal cutter with coal ploughing plate is provided, make the present invention further improve the efficiency of loading of cylinder, reduce the dust growing amount, more outstanding to the effect of girdle cylinder.The present invention is by cut blade and the inclined twice of loading blade to cylinder helical blade loading surface, make the total inclination angle of loading blade that is in the cylinder outer rim angle of friction, can suppress to fall into the coal of cylinder helical blade groove effectively and dish out from the tangential direction of cylinder greater than coal and steel.The coal-ploughing board that is located at loading blade tail end among the present invention then can improve the delivered payload capability of cylinder effectively.
The present invention is achieved by the following technical solutions:
The present invention includes: end plate, terminal pad, end plate, drum housing, toothholder, water-supply-pipe, cut blade, nozzle carrier, shrouding, loading blade, pick, nozzle and coal-ploughing board, wherein: described cut blade is provided with and loads blade and coal-ploughing board, coal-ploughing board is located at and loads the blade tail end, and cut blade, loading blade, coal-ploughing board are all to loading surface direction inclination assembly welding.End plate is welded in the head end of drum housing outside, and end plate and terminal pad are welded on the head end and the middle part of drum housing inside successively.Be respectively equipped with toothholder and nozzle carrier on end plate and the cut blade, the endoporus of nozzle carrier is communicated with the inner lead and the limbers of water-supply-pipe by end plate, cut blade, and be communicated with the coal-winning machine cooling water system, shrouding is positioned at the outer rim of loading blade and is connected with cut blade outer rim, shrouding becomes enclosed construction with the cut blade with loading blade outer rim assembly welding, pick is assembled in the toothholder, and nozzle is arranged in the nozzle carrier, and fog sprays by the nozzle on the nozzle carrier.
The angle of described cut blade and drum housing cross section is 8 °～10 °, and tilts to the loading surface direction of helical blade.Adopt 8 °～10 ° inclination angle reason to be: 1. in the cylinder cut process, though the cut blade bears bigger radial load, and main be to bear great tangential force.From the angle of cylinder carrying, the cut blade tilts to its loading surface, and more reasonable with the more vertical assembly welding of drum housing cylindrical assembly welding.2. in order to reach semi-enclosed roller frame, only depend on the loading blade to tilt, can cause cylinder integrally-built unreasonable to loading surface.
Described loading blade becomes 15 °～20 ° angle assembly weldings with the cut blade, with drum housing cross section angle be 25 °～30 °, and tilt to blade stowage face direction, the total inclination angle of loading blade that is in the cylinder outer rim like this makes cylinder form semi-enclosed structure greater than coal and firm angle of friction (angle of friction of dry coal and steel≤20 °).Loading blade with the cut blade to the reason of blade stowage face tilt is simultaneously: must guarantee to be located at the external surface of the shrouding that is connected loading blade and cut blade outer rim of cylinder outer most edge and the angle of drum housing cross section and reach more than 40 °, promptly greater than the angle of friction of coal and steel, slippage smoothly when contacting with shrouding with the assurance coal breakage, thus avoid shrouding that coal breakage is produced " secondary " fragmentation.
Described assembly welding is at loading blade tail end and with loading the coal-ploughing board of blade assembly welding in cut blade stowage face side, and its length is for loading 1/3～1/4 of blade length overall.
The concrete structure of described coal-ploughing board is: its inner rim helical pitch is identical with the loading blade, and its outer rim helical pitch was progressively strengthened by origin or beginning to the beginning, and it pushes away the coal surface and is smooth arcwall face.Coal-ploughing board is positioned at the tail end that loads blade, and coal-ploughing board head end and drum housing cross section angle are 25 °～30 °, and along with the increasing of coal-ploughing board outer rim helical pitch, this angle also correspondingly strengthens.
Described cut blade is not only to 8 °～10 ° of its cut face tilts, and assembly welding has tangential motion, the raising cylinder delivered payload capability that can suppress coal on its loading surface, and the loading blade and the coal-ploughing board of smooth surface are arranged.Coal-ploughing board particularly, it can not only rise to the coal that is in work plane conveyor pan nation below certain altitude and push conveyer, and because the variation that its helical pitch progressively strengthens can make the coal acquisition accelerated motion that is in the cylinder beginning, thereby improve the delivered payload capability of cylinder of the present invention effectively.
The distribution of toothholder of the present invention on roll circumference utilized the described characteristics of ZL96227991.9 patent, promptly is in uniform state; The cut blade with load the distribution of blade on roll circumference also as described in the ZL96227991.9 patent, be in non-uniform state.Because the dynamic load in the cylinder coal cutting process, not from blade self, but from the pick that is arranged in the toothholder, pick uniform dynamic load fluctuation can make the cylinder cut time on roll circumference reaches minimum, and minimum dynamic load fluctuation is one of important techniques index of pursuing in the cylinder design.
Among the present invention, the cut blade tilts to its loading surface, and assembly welding has the blade of loading and coal-ploughing board on the loading surface of cut blade, and loading blade and drum housing cross section angle is 25 °～30 °.Coal-ploughing board is positioned at the tail end that loads blade, and it has smooth curved surfaces, and its head end and drum housing cross section angle are 25 °～30 °, and along with the increasing of coal-ploughing board outer rim helical pitch, this angle also correspondingly strengthens.This design can not only make cylinder bear bigger cut load, and main be the delivered payload capability that can improve cylinder very effectively.Its inner rim helical pitch that particularly is located at and loads the blade tail end, is in the whole cylinder beginning is constant, the outer rim helical pitch progressively strengthens, has the coal-ploughing board that smooth arc pushes away the coal surface, it can not only rise to the coal of work plane conveyor pan nation below certain altitude and push conveyer, and can make coal breakage obtain accelerated motion, further improve the delivered payload capability of cylinder.The designed cylinder outer most edge that is among the present invention, the cut blade of cylinder and the outer rim assembly welding that loads blade are formed together the shrouding of enclosed construction, the effect of loading blade of reinforcing is not only arranged, and can avoid the cylinder outer rim of broad that coal breakage is produced " secondary " fragmentation effectively, and can increase the dynamic moment of inertia of cylinder, strengthen and resist the outer ability that changes of carrying in the cylinder cut process, help improving the stationarity of cylinder work.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a cylinder expanded view of the present invention;
Figure 3 shows that the structural representation of coal-ploughing board among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, and protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1-Figure 3, be the present embodiment structural representation, wherein end plate adopts the taper end plate, and water-supply-pipe adopts U type water-supply-pipe.Specifically comprise: taper end plate 1, terminal pad 2, end plate 3, drum housing 4, toothholder 5, U type water-supply-pipe 6, cut blade 7, nozzle carrier 8, shrouding 9, loading blade 10, pick 11, nozzle 12 and coal-ploughing board 13, wherein: be welded with on the cut blade 7 and load blade 10, coal-ploughing board 13, cut blade 7, loading blade 10, coal-ploughing board 13 are all to loading surface direction inclination assembly welding.Taper end plate 1 is welded in the head end of drum housing 4 outsides, and according to Matching Relationship, end plate 3 and terminal pad 2 are welded on the head end and the middle part of drum housing 4 inside respectively successively.Be respectively equipped with toothholder 5 and nozzle carrier 8 on taper end plate 1 and the cut blade 7, the endoporus of the endoporus of nozzle carrier 8 and U type water-supply-pipe 6 is communicated with by the inner lead and the limbers of taper end plate 1, cut blade 7, and be communicated with the coal-winning machine cooling water system, shrouding 9 is positioned at the outer rim of loading blade 10 and is connected with cut blade 7 outer rims, shrouding 9 becomes enclosed construction with cut blade 7 with loading blade 10 outer rim assembly weldings, pick 11 is assembled in the toothholder 5, and nozzle 12 is arranged in the nozzle carrier 8.
Described cut blade 7 is 8 °～10 ° with the angle of drum housing 4 cross sections, and tilts to the loading surface direction of helical blade.Described loading blade 10 is 15 °～20 ° with the angle of cut blade 7, described loading blade 10 is 25 °～30 ° with the angle of drum housing 4 cross sections, and final cut blade 7, loading blade 10, coal-ploughing board 13 form semi-closed structures with drum housing 4.
Described loading blade 10 is provided with coal-ploughing board 13, and coal-ploughing board 13 is positioned at the beginning of loading blade 10 tail ends, whole cylinder, and its length is for loading 1/3～1/4 of blade 10 length overalls.Coal-ploughing board 13 head ends and drum housing 4 cross section angles are 25 °～30 °, and along with the increasing of coal-ploughing board 13 outer rim helical pitches, this angle also correspondingly strengthens.
On the described cut blade 7, its loading surface be welded with the cut leaf angle be 15 °～20 °, and the loading blade 10 that tilts to loading surface.
As shown in Figure 3, described coal-ploughing board 13 concrete structures are: its inner rim helical pitch is with to load blade 10 identical, and the outer rim helical pitch progressively strengthens, and have a smooth arc push away coal surface 14.A is for loading the thickness of blade among the figure, and b is for loading the width of blade, and c is the shrouding width, and d strengthens for changing progressively with coal-ploughing board outer rim helical pitch, and d is a maximum value among the figure, and α determines according to loading the blade lean angle, is 15 °～20 °.
Described shrouding 9 is several sections a helicoidal structure, and angle 〉=40 of its external surface and drum housing 4 cross sections ° promptly when it contacts with coal breakage, can make the smooth slippage of coal, pulverizes in order to avoid coal breakage is produced " secondary ".
Present embodiment is mainly realized coal cutting work and loading work.Terminal pad 2 is connected with rocker arm of coal mining machine by bolt, realizes that the cut power of coal-winning machine drives the cylinder rotation.Be arranged in the pick 11 of the toothholder 5 on cut blade 7 and the taper end plate 1, in the rotation of cylinder and feeding process, realize coal cutting work.Cut blade 7, loading blade 10 and then realization loading work of coal-ploughing board 13.Nozzle 12 in the nozzle carrier 8 atomizes press water, realizes the effect of atomizing de-dusting.End plate 3 is by the rib side, and by the cover plate that bolt is connected and fixed, cover plate has the protection internal construction, prevents that coal dust from entering the effect of cylinder inside.
Present embodiment cut blade, loading blade, coal-ploughing board are all to loading surface direction inclination assembly welding, by cut blade and the inclined twice of loading blade to cylinder helical blade loading surface, make the total inclination angle of loading blade that is in the cylinder outer rim angle of friction, can suppress to fall into the coal of cylinder helical blade groove effectively and dish out from the tangential direction of cylinder greater than coal and steel.Be provided with the delivered payload capability that coal-ploughing board then can improve cylinder effectively at loading blade tail end.
Shrouding can be avoided causing the increase of whole cylinder blade outer rim width can cause the disadvantage that coal breakage is produced " secondary " pulverizing greatly because of loading blade tilt effectively among the present invention, and can add the dynamic moment of inertia of swift, improves the stationarity of its work.
Claims (5)
1. Semiclosed drum of coal cutter with coal ploughing plate, comprise: end plate, terminal pad, end plate, drum housing, toothholder, water-supply-pipe, the cut blade, nozzle carrier, pick and nozzle, end plate is welded in the head end of drum housing outside, end plate and terminal pad are welded on the head end and the middle part of drum housing inside successively, be respectively equipped with toothholder and nozzle carrier on end plate and the cut blade, the endoporus and the water-supply-pipe of nozzle carrier pass through end plate, the inner lead of cut blade and limbers are communicated with, and be communicated with the coal-winning machine cooling water system, pick is assembled in the toothholder, nozzle is arranged in the nozzle carrier, it is characterized in that, also comprise: load blade, coal-ploughing board, shrouding, described coal-ploughing board and loading blade are arranged on the cut blade, the cut blade, load blade, coal-ploughing board is all to loading surface direction inclination assembly welding, shrouding is positioned at the outer rim of loading blade and is connected with cut blade outer rim, and with the cut blade with load blade outer rim assembly welding and become enclosed construction, wherein: described coal-ploughing board is located at and loads the blade tail end, the its inner rim helical pitch is identical with the loading blade, the outer rim helical pitch progressively strengthens, and what have smooth arc pushes away the coal surface, coal-ploughing board head end and drum housing cross section angle are 25 °～30 °, increasing along with coal-ploughing board outer rim helical pitch, this angle also correspondingly strengthens, the angle that loads blade and drum housing cross section is 25 °～30 °, the cut blade, load blade, coal-ploughing board and drum housing form semi-closed structure.
2. Semiclosed drum of coal cutter with coal ploughing plate according to claim 1 is characterized in that, the angle of described cut blade and drum housing cross section is 8 °～10 °, and tilts to the loading surface direction of helical blade.
3. according to claim 1 or 2 described Semiclosed drum of coal cutter with coal ploughing plate, it is characterized in that described cut blade is 15 °～20 ° with the angle that loads blade.
4. Semiclosed drum of coal cutter with coal ploughing plate according to claim 1 is characterized in that, the length of described coal-ploughing board is for loading 1/3～1/4 of blade length overall.
5. Semiclosed drum of coal cutter with coal ploughing plate according to claim 1 is characterized in that, described shrouding is several sections a helicoidal structure, angle 〉=40 of its external surface and drum housing cross section °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100474581A CN101509373B (en) | 2009-03-12 | 2009-03-12 | Semiclosed drum of coal cutter with coal ploughing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100474581A CN101509373B (en) | 2009-03-12 | 2009-03-12 | Semiclosed drum of coal cutter with coal ploughing plate |
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| Publication Number | Publication Date |
|---|---|
| CN101509373A CN101509373A (en) | 2009-08-19 |
| CN101509373B true CN101509373B (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100474581A Expired - Fee Related CN101509373B (en) | 2009-03-12 | 2009-03-12 | Semiclosed drum of coal cutter with coal ploughing plate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383790A (en) * | 2011-10-27 | 2012-03-21 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Novel cutting head spiral drum used for shearer |
| CN102852518B (en) * | 2012-08-22 | 2014-11-19 | 江苏中机矿山设备有限公司 | Coal cutter roller |
| CN104314565A (en) * | 2014-10-23 | 2015-01-28 | 天地上海采掘装备科技有限公司 | Powerful drum of coal cutter |
| CN108843323B (en) * | 2018-08-13 | 2024-04-05 | 天地科技股份有限公司上海分公司 | Open-pit miner |
| CN115450617A (en) * | 2022-08-23 | 2022-12-09 | 徐州中矿汇弘矿山设备有限公司 | Full-flow efficient coal charging roller |
| CN115582164B (en) * | 2022-09-13 | 2023-05-30 | 沈阳煤炭科学研究所有限公司 | Automatic dust treatment system for mining full-face tunneling |
-
2009
- 2009-03-12 CN CN2009100474581A patent/CN101509373B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101509373A (en) | 2009-08-19 |
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Application publication date: 20090819 Assignee: Tiefa Weiyue Mine Fitting Manufacturing Co.,Ltd. Assignor: Zhang Shouzhu Contract record no.: 2010210000055 Denomination of invention: Semiclosed drum of coal cutter with coal ploughing plate License type: Exclusive License Record date: 20100408 |
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Owner name: TIEFA V YUE MINING PARTS MANUFACTURING CO., LTD. Free format text: FORMER OWNER: ZHANG SHOUZHU Effective date: 20100531 |
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Owner name: ZHANG SHOUZHU Free format text: FORMER OWNER: TIE FA V YUE MINE PRODUCTS MANUFACTURING CO.,LTD. Effective date: 20100806 |
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Free format text: CORRECT: ADDRESS; FROM: 112704 XIAONAN TOWN, DIAOBINGSHAN CITY, TIELING CITY, LIAONING PROVINCE TO: 200030 ROOM 103, NO.45, LANE 1029, ZHAOJIABANG ROAD, SHANGHAI CITY |
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Effective date of registration: 20100806 Address after: 103, room 45, No. 1029, Lane 200030, Zhao Jia Bang Road, Shanghai Applicant after: Zhang Shouzhu Address before: 112704 Tieling City, Liaoning city in Diaobingshan Province town of Xiaonan Applicant before: Tiefa Weiyue Mine Fitting Manufacturing Co.,Ltd. |
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