CN104373039A - Large-diameter empty hole cut blasting drill for roadway - Google Patents
Large-diameter empty hole cut blasting drill for roadway Download PDFInfo
- Publication number
- CN104373039A CN104373039A CN201410641613.3A CN201410641613A CN104373039A CN 104373039 A CN104373039 A CN 104373039A CN 201410641613 A CN201410641613 A CN 201410641613A CN 104373039 A CN104373039 A CN 104373039A
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- CN
- China
- Prior art keywords
- drill
- hollow
- motor
- drill rod
- reduction box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000005422 blasting Methods 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 230000001141 propulsive effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000005641 tunneling Effects 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill special for large-diameter empty hole cut blasting for a roadway. According to the drill, a rotary impact device and a pushing mechanism are installed on a drilling machine guide rail. The rotary impact device is composed of a rotator, a hollow drill rod, a clamp and a pneumatic impactor and is installed on a supporting plate on the drilling machine guide rail. The pushing mechanism is a chain wheel and chain mechanism, a pushing motor drives a driving chain wheel of a gear reducer, and when the pushing motor operates, a chain pulls the rotary impact device on the supporting plate to do reciprocating motion on the guide rail. When used, the drill can be installed on a trestle type column to form a trestle type column type large-diameter empty hole cut blasting drill and can be installed on a lifting device on a trolley to form a large-diameter empty hole cut blasting drill trolley, the key problems that cut is difficult, and the use ratio of shot holes is low in the drill blasting tunneling process are solved, and the advantages of large-diameter empty hole parallel cut are brought into play.
Description
Technical field
The present invention relates to blasting boreholes equipment, particularly relate to drilling tool during coal mine roadway major diameter emptying aperture Cut Blasting.
Background technology
Drilling and blasting method, in for a long time, remains the main method of coal mine roadway tunneling construction.Main with 8-23m in coal mine roadway engineering
2in, small section tunnel is main.Based on the medium-length hole blasting of 2-3 rice in tunneling construction, the key of medium-length hole blasting is the selection of cutting method.According to research, the best cutting method of medium-length hole blasting is burn cut, needs the intensive emptying aperture leaving not powder charge to improve the explosion scope of freedom during burn cut.Along with researcher is to the progress of Empty hole effect and rock-cracking mechanism, in recent years there is the new method of major diameter emptying aperture parallel cut blasting.Especially gradual major diameter emptying aperture Screw dig trench New method for blasting, becomes in raising, the Major Technology of small section tunnel cyclic advance.So-called major diameter emptying aperture burn cut, it is the straight eye emptying aperture of the not powder charge at drift section intermediate arrangement 1-3 more than diameter 100mm, powder charge easer first forms explosive funnel using hollow hole of centre as the scope of freedom, creates conditions for other powder charge holes form two scope of freedoms.It has boring less, few, the blasting efficiency high advantage of powder charge.Because current perforating rig or drill carriage design according to the slim hole of common diameter 32mm, so when boring the large diameter borehole of more than 100mm, need to adopt down-the-hole drill.Because the volume of down-the-hole drill is large, operation can not be carried out with perforating rig simultaneously, need to call two kinds of drill carriages back and forth or rig divides subjob, extremely bother, affect drilling construction speed.Owing to not also being specifically designed at present the drilling tool of major diameter emptying aperture Cut Blasting, thus at present domestic and international to the practical application of major diameter emptying aperture burn cut and few, make the advantage of major diameter emptying aperture burn cut can not get playing.
Summary of the invention
For solving the drilling problems of tunnel major diameter emptying aperture Cut Blasting, the present invention proposes a kind of drill being exclusively used in tunnel major diameter emptying aperture Cut Blasting.
A kind of tunnel major diameter emptying aperture Cut Blasting drill, is characterized in that:
It is on borer rail, be provided with rotary impact device and propulsive mechanism; Not only described rotary impact device is one and drives drilling rod to rotate but also realize the device of bore bit impact, be made up of circulator, hollow drill rod, binding clasp and air hammer; The structure of above-mentioned circulator is, comprise a gear reduction box and rotation motor, driving gear and the rotation motor of gear reduction box realize transmission, and the driven gear of gear reduction box is arranged in a hollow shaft, require that the internal diameter of hollow shaft and hollow drill rod external diameter match; Described hollow drill rod passes from hollow shaft, and hollow drill rod and hollow shaft is clamped together by binding clasp, makes hollow shaft drive hollow drill rod to rotate together; Described air hammer is arranged on hollow drill rod front end, and from hollow drill rod rear end to air hammer air feed, the front end of air hammer is provided with the rotary bore bit of impact that diameter is greater than more than 100mm; The mounting structure of rotary impact device and borer rail is, borer rail is provided with a supporting plate that can horizontally slip, by the floor installation of gear reduction box on supporting plate; Described propulsive mechanism is a sprocket wheel link chain mechanism; Sprocket wheel link chain mechanism is the gear reduction box being provided with propulsion motor drive in the rear end of borer rail, the output shaft of gear reduction box is provided with drive sprocket, borer rail rear end is provided with revolution sprocket wheel, chain two ends are fixed on supporting plate respectively after revolution sprocket wheel and drive sprocket are wound around, during propulsion motor running, chain affects the rotary impact device on supporting plate to move reciprocatingly on guide rail, completes forward-reverse action.
Above-mentioned rotation motor and propulsion motor are air motor or hydraulic motor; In order to adjust penetration rate according to different lithology, the air inlet pipeline of air motor or the in-line of hydraulic motor are provided with throttle grverning valve.When using air motor, air motor and air hammer can share a high-pressure air source; When using hydraulic motor, separately hydraulic power source need be set up.
In order to ensure the rate of tension of chain, above-mentioned sprocket wheel link chain mechanism is provided with chain tensioning device.
The stability of drill steel during in order to ensure to hole; The front end of borer rail is also provided with foresight puncheon centralizing device.
During use, this drill can be arranged on trestle and form frame column type major diameter emptying aperture Cut Blasting rig; Can be arranged on the lifting gear on chassis and form major diameter emptying aperture Cut Blasting drill carriage.
The present invention adopts the bore mode impacting and add rotation, hard rock can be adapted to, soft rock can be adapted to again, the slotting emptying aperture of 100mm can be greater than by drill diameter when tunnel blasting tunnels, the emptying aperture such as boring two diameter 108mm can produce the slotting space of an one meter in diameter, can save the easer of 8-10 common diameter; If by the degree of depth of large diameter borehole depth down 300mm, adding the pre-buried cartridge bag in depths, the bottomless resistance avalanche of follow-up common borehole can made, make blast hole utilization factor reach 100 ﹪.Therefore, the invention solves that slotting when boring quick-fried driving is difficult, borehole utilizes low key issue, make the advantage of major diameter emptying aperture burn cut obtain performance.
Accompanying drawing explanation
Fig. 1 is the front view of embodiment.
1-air hammer, 2-binding clasp, 3-gear reduction box, 4-rotation motor, 5-hollow drill rod, 6-propulsion motor, 7-borer rail, 8-chain, 9-hollow shaft, 10-impacts rotary bore bit, 11-drive sprocket, 12-supporting plate, and 13-turns one's head sprocket wheel.
Detailed description of the invention
As shown in Figure 1, a kind of tunnel major diameter emptying aperture Cut Blasting drill, it is provided with rotary impact device and propulsive mechanism on borer rail 7; Not only described rotary impact device is one and drives drilling rod to rotate but also realize the device of bore bit impact, be made up of circulator, hollow drill rod 5, binding clasp 2 and air hammer 1; The structure of above-mentioned circulator is, comprise a gear reduction box 3 and rotation motor 4, driving gear shaft and the rotation motor 4 of gear reduction box realize transmission, and the driven gear of gear reduction box 3 is arranged in a hollow shaft 9, require that the internal diameter of hollow shaft 9 and hollow drill rod 5 external diameter match; Described hollow drill rod 5 passes from hollow shaft 9, and hollow drill rod 5 and hollow shaft 9 is clamped together by binding clasp 2, makes hollow shaft 9 drive hollow drill rod 5 to rotate together; Described air hammer 1 is arranged on hollow drill rod 5 front end, and from hollow drill rod 5 rear end to air hammer air feed, the front end of air hammer 1 is provided with the rotary bore bit 10 of impact that diameter is greater than more than 100mm; The mounting structure of rotary impact device and borer rail 7 is, borer rail 7 is provided with a supporting plate that can horizontally slip 12, by the floor installation of gear reduction box 3 on supporting plate 12; Described propulsive mechanism is a sprocket wheel link chain mechanism; Sprocket wheel link chain mechanism is the gear reduction box 3 being provided with propulsion motor 6 drive in the rear end of borer rail 7, the output shaft of gear reduction box 3 is provided with drive sprocket 11, borer rail rear end is provided with revolution sprocket wheel 13, chain 8 two ends are fixed on supporting plate 12 respectively after revolution sprocket wheel 13 and drive sprocket 11 are wound around, when propulsion motor 6 operates, chain 8 affects the rotary impact device on supporting plate to move reciprocatingly on borer rail 7, completes forward-reverse action.
Above-mentioned rotation motor 4 and propulsion motor 6 are air motor or hydraulic motor; In order to adjust penetration rate according to different lithology, the air inlet pipeline of air motor or the in-line of hydraulic motor are provided with throttle grverning valve.When using air motor, air motor and air hammer 1 can share a high-pressure air source; When using hydraulic motor, separately hydraulic power source need be set up.
In order to ensure the rate of tension of chain 8, above-mentioned sprocket wheel link chain mechanism is provided with chain tensioning device (not showing chain tensioning device in figure).
The stability of hollow drill rod 5 during in order to ensure to hole; The front end of borer rail is also provided with foresight puncheon centralizing device (not showing foresight puncheon centralizing device in figure).
During use, this drill can be arranged on trestle and form frame column type major diameter emptying aperture Cut Blasting rig; Can be arranged on the lifting gear on chassis and form major diameter emptying aperture Cut Blasting drill carriage.
Claims (5)
1. a tunnel major diameter emptying aperture Cut Blasting drill, is characterized in that: it is on borer rail, be provided with rotary impact device and propulsive mechanism; Not only described rotary impact device is one and drives drilling rod to rotate but also realize the device of bore bit impact, be made up of circulator, hollow drill rod, binding clasp and air hammer; The structure of above-mentioned circulator is, comprise a gear reduction box and rotation motor, driving gear and the rotation motor of gear reduction box realize transmission, and the driven gear of gear reduction box is arranged in a hollow shaft, require that the internal diameter of hollow shaft and hollow drill rod external diameter match; Described hollow drill rod passes from hollow shaft, and hollow drill rod and hollow shaft is clamped together by binding clasp, makes hollow shaft drive hollow drill rod to rotate together; Described air hammer is arranged on hollow drill rod front end, and from hollow drill rod rear end to air hammer air feed, the front end of air hammer is provided with the rotary bore bit of impact that diameter is greater than more than 100mm; The mounting structure of rotary impact device and borer rail is, borer rail is provided with a supporting plate that can horizontally slip, by the floor installation of gear reduction box on supporting plate; Described propulsive mechanism is a sprocket wheel link chain mechanism; Sprocket wheel link chain mechanism is the gear reduction box being provided with propulsion motor drive in the rear end of borer rail, the output shaft of gear reduction box is provided with drive sprocket, borer rail rear end is provided with revolution sprocket wheel, chain two ends are fixed on supporting plate respectively after revolution sprocket wheel and drive sprocket are wound around, during propulsion motor running, chain affects the rotary impact device on supporting plate to move reciprocatingly on guide rail, completes forward-reverse action.
2. tunnel as claimed in claim 1 major diameter emptying aperture Cut Blasting drill, it is characterized in that, described rotation motor and propulsion motor are pneumatic type motor, and the air inlet pipeline of two pneumatic type motors is provided with throttle grverning valve; Pneumatic type motor and air hammer share a high-pressure air source.
3. tunnel as claimed in claim 1 major diameter emptying aperture Cut Blasting drill, it is characterized in that, described rotation motor and propulsion motor are hydraulic motor; The in-line of two fluid pressure type formula motors is provided with throttle grverning valve.
4. tunnel as claimed in claim 1 major diameter emptying aperture Cut Blasting drill, it is characterized in that, the sprocket wheel link chain mechanism of the dual-purpose drill carriage in the first step is provided with chain tensioning device.
5. tunnel as claimed in claim 1 major diameter emptying aperture Cut Blasting drill, is characterized in that, be also provided with foresight puncheon centralizing device in the front end of borer rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641613.3A CN104373039B (en) | 2014-11-13 | Tunnel major diameter emptying aperture Cut Blasting borer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641613.3A CN104373039B (en) | 2014-11-13 | Tunnel major diameter emptying aperture Cut Blasting borer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373039A true CN104373039A (en) | 2015-02-25 |
| CN104373039B CN104373039B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316932A (en) * | 2018-04-23 | 2018-07-24 | 山西坤谷矿山装备科技有限公司 | The quick slotting device of stone drifting large pore keyhole |
| CN114233177A (en) * | 2021-12-14 | 2022-03-25 | 唐山首钢马兰庄铁矿有限责任公司 | Pneumatic impact rock drilling through hole device for blast hole of underground medium-length hole |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103343A (en) * | 1985-04-20 | 1986-10-15 | 中南工业大学 | Raise deep hole drill car |
| CN2818757Y (en) * | 2004-08-16 | 2006-09-20 | 北京世纪金道石油技术开发有限公司 | Multifunctial hydraulic mountain drilling structure |
| CN201202400Y (en) * | 2008-06-10 | 2009-03-04 | 宋彦波 | Baseboard anchorage cable drill |
| CN201606082U (en) * | 2010-03-12 | 2010-10-13 | 中铁一局集团有限公司 | Novel pipe shed drilling machine |
| CN201763241U (en) * | 2010-09-21 | 2011-03-16 | 河南永安煤层气研发有限公司 | Bushing & drilling-in dual purpose drilling machine |
| CN201802309U (en) * | 2010-10-13 | 2011-04-20 | 湖南恒至凿岩科技有限公司 | Hydraulic rotary pneumatic impact type drilling machine |
| CN102325945A (en) * | 2009-02-20 | 2012-01-18 | 挖土机械有限公司 | Spray grouting equipment |
| CN202131973U (en) * | 2011-07-09 | 2012-02-01 | 平顶山冠宏矿山技术装备有限公司 | Full-hydraulic gallery drilling machine for drilling holes along soft coal layer of coal mine |
| CN103233746A (en) * | 2013-03-12 | 2013-08-07 | 双鸭山中创机械制造有限公司 | Multifunctional underground roadway tunneling locomotive |
| CN103643895A (en) * | 2013-11-06 | 2014-03-19 | 桂林市华力重工机械有限责任公司 | Crawler-type hydraulic cutting drilling machine with intelligent braking device |
| CN104453710A (en) * | 2014-11-24 | 2015-03-25 | 平顶山市铁福来机电设备有限公司 | Drilling equipment for coal seam large-diameter boring construction |
| CN204266915U (en) * | 2014-11-13 | 2015-04-15 | 青岛达邦钻机有限责任公司 | Tunnel major diameter emptying aperture Cut Blasting drill |
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103343A (en) * | 1985-04-20 | 1986-10-15 | 中南工业大学 | Raise deep hole drill car |
| CN2818757Y (en) * | 2004-08-16 | 2006-09-20 | 北京世纪金道石油技术开发有限公司 | Multifunctial hydraulic mountain drilling structure |
| CN201202400Y (en) * | 2008-06-10 | 2009-03-04 | 宋彦波 | Baseboard anchorage cable drill |
| CN102325945A (en) * | 2009-02-20 | 2012-01-18 | 挖土机械有限公司 | Spray grouting equipment |
| CN201606082U (en) * | 2010-03-12 | 2010-10-13 | 中铁一局集团有限公司 | Novel pipe shed drilling machine |
| CN201763241U (en) * | 2010-09-21 | 2011-03-16 | 河南永安煤层气研发有限公司 | Bushing & drilling-in dual purpose drilling machine |
| CN201802309U (en) * | 2010-10-13 | 2011-04-20 | 湖南恒至凿岩科技有限公司 | Hydraulic rotary pneumatic impact type drilling machine |
| CN202131973U (en) * | 2011-07-09 | 2012-02-01 | 平顶山冠宏矿山技术装备有限公司 | Full-hydraulic gallery drilling machine for drilling holes along soft coal layer of coal mine |
| CN103233746A (en) * | 2013-03-12 | 2013-08-07 | 双鸭山中创机械制造有限公司 | Multifunctional underground roadway tunneling locomotive |
| CN103643895A (en) * | 2013-11-06 | 2014-03-19 | 桂林市华力重工机械有限责任公司 | Crawler-type hydraulic cutting drilling machine with intelligent braking device |
| CN204266915U (en) * | 2014-11-13 | 2015-04-15 | 青岛达邦钻机有限责任公司 | Tunnel major diameter emptying aperture Cut Blasting drill |
| CN104453710A (en) * | 2014-11-24 | 2015-03-25 | 平顶山市铁福来机电设备有限公司 | Drilling equipment for coal seam large-diameter boring construction |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316932A (en) * | 2018-04-23 | 2018-07-24 | 山西坤谷矿山装备科技有限公司 | The quick slotting device of stone drifting large pore keyhole |
| CN108316932B (en) * | 2018-04-23 | 2023-12-15 | 山西坤谷矿山装备科技有限公司 | Quick cutting device for large-aperture cut hole in rock drift tunneling |
| CN114233177A (en) * | 2021-12-14 | 2022-03-25 | 唐山首钢马兰庄铁矿有限责任公司 | Pneumatic impact rock drilling through hole device for blast hole of underground medium-length hole |
| CN114233177B (en) * | 2021-12-14 | 2024-03-22 | 唐山首钢马兰庄铁矿有限责任公司 | Pneumatic impact rock drilling through hole device for underground medium-length hole blast hole |
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Granted publication date: 20170104 |