CN103806913A - Cutting mechanism of high-pressure water jet assisted heading machine - Google Patents
Cutting mechanism of high-pressure water jet assisted heading machine Download PDFInfo
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- CN103806913A CN103806913A CN201310597109.3A CN201310597109A CN103806913A CN 103806913 A CN103806913 A CN 103806913A CN 201310597109 A CN201310597109 A CN 201310597109A CN 103806913 A CN103806913 A CN 103806913A
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Abstract
The invention provides a cutting mechanism of a high-pressure water jet assisted heading machine, solving the problems that the design scheme of an existing high-pressure water jet technology is not reasonable and perfect, so that the jetting and the cutting are not well matched, and the excellent auxiliary effect can not be achieved. The cutting mechanism of the high-pressure water jet assisted heading machine comprises a cutting head shaped as a cone body, wherein the top end of the cone body is in a spherical shape, a plurality of cutting teeth are fixedly arranged on the surface of the cutting head, extend along a spiral curve from the top end of the cone body to the back end of the cone body, tooth tips of the plurality of cutting teeth are continuously distributed in a turning direction along the trend of a spiral curve on the conical surface, nozzles are fixedly forwards arranged at root parts of the cutting teeth, which are fixedly connected with the cutting heads, conveying channels communicated with the nozzles are arranged inside the cutting heads, and the jet direction of the nozzles is consistent with the cutting direction of the cutting teeth. According to the cutting mechanism, the stress of the cutting teeth can be reduced, the coal and rock are effectively crushed; the cutting teeth can be cooled, the service life is prolonged; the dust can be reduced, sparks can be inhibited, and the safety is improved; and the lumpiness of coal can be improved, and the economic benefit is increased.
Description
Technical field
The invention belongs to colliery digging equipment technical field, relate to the auxiliary cutting mechanism for heading machine of a kind of cutting means for coal petrography, particularly a kind of high-pressure water jet.
Background technology
In recent years, along with the fast development of coal in China industry, inseparable coal machine profession also comes into one's own day by day with it.The cut of coal petrography is an engineering difficult problem always, and existing tunneling machine cutting exists more weak point, and it is specially: pick and toothholder well damage in operation, cause the application life of cutterhead short; And in operating process, the vibration of fuselage is larger, when cut, dust is larger etc., and this series of factors is all restricting the development of coal petrography cut technology.
High pressure water jet is nearly new technology growing up for 30 years, and its application is increasingly extensive.In recent years, high-pressure water jet is just obtaining more and more experts and scholars' concern aspect coal bed drilling and slot.High-pressure water jet basic principle is to utilize water under high pressure generation equipment to produce water under high pressure, by nozzle, pressure energy is changed highly into the water jet kinetic energy of assembling, available this jet to material cut, broken and cleaning.
But the design scheme of the high pressure water jet using in prior art is reasonable not, perfect, make jet not reach good coordinating with cut, in High Rotation Speed running, can not play the auxiliaring effect of expection, and then not bring into play the effect of high pressure water jet completely.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, propose a kind of by the cooperatively interact laying of position of nozzle and pick, and entire combination is arranged after integrated and the setting of angle, to reach as the auxiliary cutting mechanism for heading machine of high-pressure water jet of the auxiliary cut means of effective stream shock, erosion, wedge.
Object of the present invention can realize by following technical proposal: a kind of high-pressure water jet is assisted cutting mechanism for heading machine, comprise the cutterhead that is cone, and the top of cone is spherical shape, on the surface of described cutterhead, set firmly some picks, described some picks from pyramid tip backward helical curve extend arrange, and the crown of some picks turns to laying continuously along the tendency of helical curve on taper surface, the be connected root of cutterhead of described pick sets firmly nozzle forward, the feed track that is communicated with nozzle is offered in the inside of described cutterhead, the jet direction of described nozzle is consistent with the cutting coal direction of pick.
In the auxiliary cutting mechanism for heading machine of this high-pressure water jet, the helical curve that some pick continuous arrangements form be dextrorotation to extension, and the crown of some picks is also progressively turned to and opens to outer ring by inner ring.The axis of nozzle parallels with the axis of pick, and both towards identical.The high-pressure water jet part of entirety development machine comprises: motor, water tank, super-pressure pump or booster, abrasive can, controller, feed track and nozzle; The cutting units of entirety development machine divides and comprises: cutterhead, toothholder and pick.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, described nozzle Nei Pen road comprises the straight channel and the taper road that is positioned at inner side that are positioned at outer end, and described straight channel is connected the vertex of a cone mouth in taper road, and at the bottom of the cone in described taper road, mouth is connected above-mentioned feed track.The feed track that wherein connects nozzle is high-voltage tube, and the material of nozzle adopts diamondite.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, the diameter of described straight channel is 0.8～1.2mm.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, the angle of taper in described taper road is 10 °～15 °.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, on the surface of described cutterhead along helical curve some toothholders of arranging, described toothholder is skewed and is connected with cutterhead location, and described pick is vertically through on toothholder admittedly, and the crown of pick is towards the front of helical curve.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, the angle of the anchor point place tangent line on the axis of described pick and cutterhead surface is 30 °～45 °.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, described nozzle location is arranged at the dead ahead root position of toothholder, and the discharging opening of described nozzle is towards the front of helical curve.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, the matched combined of described pick and nozzle is set to two row, this two row matched combined from the pyramid tip of cutterhead backward helical curve extension arrange.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, in the first half quantity in described every row matched combined, be provided with nozzle, in later half quantity without nozzle setting.The interior several circles that form thus helical curve have nozzle, and outer a few circle is without nozzle; Further making nozzle concentrate installs on the spherical shape at cutterhead vertex of a cone place.
In the auxiliary cutting mechanism for heading machine of above-mentioned high-pressure water jet, the helical curve of described every row matched combined is arranged and is extended gradually from front to back the spacing of arranging.Form progressively diffusion structure from inside to outside from the positive entirety of cutterhead thus.
Compared with prior art, the auxiliary cutting mechanism for heading machine of this high-pressure water jet utilizes the auxiliary cutterhead of ultra-high pressure water fluid jet to carry out coal petrography fragmentation, and jet parallels the action direction of setting with cut, has optimized both compounding techniques, can significantly reduce pick stressed, and effectively smash coal petrography; Simultaneously jet can cooling pick, thereby greatly extends the application life of pick and whole cutterhead; The dust that jet produces can also reduce cut time, issuable spark while simultaneously suppressing cut, strengthens the safety that cut is produced; Use the auxiliary cut operation of ultra-high pressure water fluid jet can improve the lumpiness of coal, greatly increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of the auxiliary cutting mechanism for heading machine of this high-pressure water jet.
Fig. 2 is the sectional view of nozzle in the auxiliary cutting mechanism for heading machine of this high-pressure water jet.
In figure, 1, cutterhead; 2, toothholder; 3, pick; 4, nozzle.
The specific embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As illustrated in fig. 1 and 2, the auxiliary cutting mechanism for heading machine of this high-pressure water jet comprises cutterhead 1, and toothholder 2, pick 3 and nozzle 4 are set on cutterhead 1.
The high-pressure water jet part of entirety development machine comprises: motor, water tank, super-pressure pump or booster, abrasive can, controller, feed track and nozzle 4; The cutting units of entirety development machine divides and comprises: cutterhead 1, toothholder 2 and pick 3.
Cutterhead 1 is cone, and the top of cone is spherical shape.On the surface of cutterhead 1, set firmly some toothholders 2 by welding, some toothholders 2 are divided into two row, and this two row toothholder 2 from pyramid tip backward helical curve extend arrange, be specially the top of two row toothholders 2 in relative position, synchronously extend spirally clockwise and form subsequently the laying that alternates of adjacent loop-drive.Toothholder 2 is certain gradient locates and is connected on the surface of cutterhead 1, vertically admittedly wear pick 3, and the crown of pick 3 is towards the front of helical curve on toothholder 2.Thus some picks 3 form two row from pyramid tip backward helical curve extend and arrange, and the crown of some picks 3 turns to laying continuously along the tendency of helical curve on taper surface, the crown that is some picks 3 is progressively turned to and opens to outer ring by inner ring.The angle of the anchor point place tangent line on the axis of pick 3 and cutterhead 1 surface is 30 °～45 °.
The root position location, dead ahead of toothholder 2 arranges nozzle 4, and the discharging opening of this nozzle 4 is towards the front of helical curve.Toothholder 2, pick 3 form matched combined with nozzle 4, and nozzle 4 axis that are specially every matched combined parallel with pick 3 axis, and the jet direction of nozzle 4 is consistent with the cutting coal direction of pick 3.In first half quantity in every row matched combined, be provided with nozzle 4, in later half quantity, arrange without nozzle 4, the interior several circles that form thus helical curve have nozzle 4, and outer a few circle is without nozzle 4; Further making nozzle 4 concentrate installs on the spherical shape at cutterhead 1 vertex of a cone place.The helical curve of every row matched combined is arranged and is extended gradually from front to back the spacing of arranging, and forms progressively diffusion structure from inside to outside thus from the positive entirety of cutterhead 1.
The feed track that is communicated with nozzle 4 is offered in the inside of cutterhead 1, and nozzle 4 Nei Pen roads comprise the straight channel and the taper road that is positioned at inner side that are positioned at outer end, and the diameter of straight channel is 0.8～1.2mm; The angle of taper in taper road is 10 °～15 °, and wherein preferred plan is 13 °.The external port of straight channel is discharging opening, and inner port is connected the vertex of a cone mouth in taper road, and at the bottom of the cone in taper road, mouth is connected feed track.The feed track that wherein connects nozzle 4 is high-voltage tube, and the material of nozzle 4 adopts diamondite.
The specific works process of the auxiliary cut development machine of high-pressure water jet is: cutterhead 1 start to creep into or the work of yaw cut before, adjustment control, starts working high-voltage water jet device; High-voltage water jet device needed compound abrasive before water jet sprays, and abrasive material adopts quartz sand, particle diameter approximately 180 μ m; Current are after super-pressure pump or booster pressurization, and water jet forms vacuum, sucks quartz sand abrasive material, forms abrasive water-jet, is penetrated by nozzle 4, and its pressure can reach 100～150MPa; Cutterhead 1 is started working, abrasive water-jet rotates under the drive of cutterhead 1, thereby is rotated cutting, under the effect of Abrasive Water Jet Machining, the pick 3 paralleling with abrasive water-jet carries out cut to coal petrography again, can greatly improve cutting efficiency by mating reaction.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used cutterhead 1 herein; Toothholder 2; Pick 3; Nozzle 4 terms such as grade, but do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. the auxiliary cutting mechanism for heading machine of high-pressure water jet, comprise the cutterhead that is cone, and the top of cone is spherical shape, on the surface of described cutterhead, set firmly some picks, it is characterized in that, described some picks from pyramid tip backward helical curve extend arrange, and the crown of some picks turns to laying continuously along the tendency of helical curve on taper surface, the be connected root of cutterhead of described pick sets firmly nozzle forward, the feed track that is communicated with nozzle is offered in the inside of described cutterhead, and the jet direction of described nozzle is consistent with the cutting coal direction of pick.
2. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 1, it is characterized in that, described nozzle Nei Pen road comprises the straight channel and the taper road that is positioned at inner side that are positioned at outer end, and described straight channel is connected the vertex of a cone mouth in taper road, and at the bottom of the cone in described taper road, mouth is connected above-mentioned feed track.
3. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 2, is characterized in that, the diameter of described straight channel is 0.8～1.2mm.
4. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 2, is characterized in that, the angle of taper in described taper road is 10 °～15 °.
5. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 1, it is characterized in that, on the surface of described cutterhead along helical curve some toothholders of arranging, described toothholder is skewed and is connected with cutterhead location, described pick is vertically through on toothholder admittedly, and the crown of pick is towards the front of helical curve.
6. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 5, is characterized in that, the angle of the anchor point place tangent line on the axis of described pick and cutterhead surface is 30 °～45 °.
7. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 5, is characterized in that, described nozzle location is arranged at the dead ahead root position of toothholder, and the discharging opening of described nozzle is towards the front of helical curve.
8. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 1, is characterized in that, the matched combined of described pick and nozzle is set to two row, this two row matched combined from the pyramid tip of cutterhead backward helical curve extension arrange.
9. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 8, is characterized in that, in the first half quantity in described every row matched combined, is provided with nozzle, in later half quantity without nozzle setting.
10. the auxiliary cutting mechanism for heading machine of high-pressure water jet according to claim 8, is characterized in that, the helical curve of described every row matched combined is arranged and extended gradually from front to back the spacing of arranging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310597109.3A CN103806913A (en) | 2013-11-22 | 2013-11-22 | Cutting mechanism of high-pressure water jet assisted heading machine |
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| CN201310597109.3A CN103806913A (en) | 2013-11-22 | 2013-11-22 | Cutting mechanism of high-pressure water jet assisted heading machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041309A (en) * | 2015-08-05 | 2015-11-11 | 中国矿业大学 | Pre-fixing abrasive and water jet united cutting tooth type roller of coal mining machine |
| CN105952456A (en) * | 2016-05-09 | 2016-09-21 | 中国矿业大学 | Adaptive abrasive slurry jet mining system and method |
| CN106761803A (en) * | 2017-02-13 | 2017-05-31 | 徐工集团工程机械有限公司 | Development machine cutterhead and development machine |
| CN107165646A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
| CN107587874A (en) * | 2017-11-02 | 2018-01-16 | 黑龙江科技大学 | A kind of coal petrography cutting operating mechanism |
| CN108590691A (en) * | 2018-05-31 | 2018-09-28 | 中国铁建重工集团有限公司 | A kind of development machine and its Water jet sprayer |
| CN108952711A (en) * | 2018-08-23 | 2018-12-07 | 江苏中机矿山设备有限公司 | It is a kind of can smooth cutting hard coal petrography coalcutter and coal-mining method |
| CN113266348A (en) * | 2021-06-24 | 2021-08-17 | 中国铁建重工集团股份有限公司 | Tunneling and anchoring all-in-one machine integrated with water jet system and construction method |
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| CN202767993U (en) * | 2012-07-05 | 2013-03-06 | 徐州徐工基础工程机械有限公司 | Pick holder component for roadheaders |
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| US4333687A (en) * | 1978-12-15 | 1982-06-08 | Kennametal Inc. | Holder for the attachment of cutters to mining and tunnelling machines |
| DE3007923A1 (en) * | 1980-03-01 | 1981-09-17 | Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | Mine mineral extracting roller cutter nozzle holder - is cylindrical unit cemented into full length tightly encircling hole |
| CN201043466Y (en) * | 2007-02-16 | 2008-04-02 | 上海创力矿山设备有限公司 | Inner atomizing device of development machine cutter head |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041309A (en) * | 2015-08-05 | 2015-11-11 | 中国矿业大学 | Pre-fixing abrasive and water jet united cutting tooth type roller of coal mining machine |
| CN105952456A (en) * | 2016-05-09 | 2016-09-21 | 中国矿业大学 | Adaptive abrasive slurry jet mining system and method |
| CN105952456B (en) * | 2016-05-09 | 2018-01-19 | 中国矿业大学 | A kind of adaptive abrasive material slurry jet flow mining system and method |
| CN106761803A (en) * | 2017-02-13 | 2017-05-31 | 徐工集团工程机械有限公司 | Development machine cutterhead and development machine |
| CN106761803B (en) * | 2017-02-13 | 2019-11-26 | 徐工集团工程机械有限公司 | Development machine cutterhead and development machine |
| CN107165646A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
| CN107165646B (en) * | 2017-05-25 | 2023-06-30 | 中国铁建重工集团股份有限公司 | Rock breaking cutter, shield tunneling machine cutterhead and shield tunneling machine |
| CN107587874A (en) * | 2017-11-02 | 2018-01-16 | 黑龙江科技大学 | A kind of coal petrography cutting operating mechanism |
| CN108590691A (en) * | 2018-05-31 | 2018-09-28 | 中国铁建重工集团有限公司 | A kind of development machine and its Water jet sprayer |
| CN108952711A (en) * | 2018-08-23 | 2018-12-07 | 江苏中机矿山设备有限公司 | It is a kind of can smooth cutting hard coal petrography coalcutter and coal-mining method |
| CN108952711B (en) * | 2018-08-23 | 2024-05-28 | 江苏中机矿山设备有限公司 | Coal cutter capable of smoothly cutting hard coal rock and coal mining method |
| CN113266348A (en) * | 2021-06-24 | 2021-08-17 | 中国铁建重工集团股份有限公司 | Tunneling and anchoring all-in-one machine integrated with water jet system and construction method |
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Application publication date: 20140521 |