CN201024897Y - Quick drill rod drill bit for drilling floor - Google Patents
Quick drill rod drill bit for drilling floor Download PDFInfo
- Publication number
- CN201024897Y CN201024897Y CNU2007200363299U CN200720036329U CN201024897Y CN 201024897 Y CN201024897 Y CN 201024897Y CN U2007200363299 U CNU2007200363299 U CN U2007200363299U CN 200720036329 U CN200720036329 U CN 200720036329U CN 201024897 Y CN201024897 Y CN 201024897Y
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- drill bit
- rod
- drill
- drill rod
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 239000011435 rock Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a quick drilling rod drill bit of bottoming plate drilling relates to mining drill bit. The device comprises a drill rod and a drill bit arranged at the front end of the drill rod, wherein the drill rod is an air inlet dust exhaust drill rod; the air inlet dust exhaust drill rod is hollow cylinder, at least two air inlet pore channels penetrating the cylinder wall up and down are arranged on the cylinder wall, and the bottom ends of the air inlet pore channels are communicated with the inner cavity of the drill rod; the drill bit is a rock breaking filter drill bit and is in the shape of an outwards bent arc disc, a plurality of rock breaking tool bits and a plurality of dust discharging holes which are distributed among the rock breaking tool bits and communicated with the inner cavity of the drill rod are uniformly distributed on the disc-shaped arc surface. Its advantages are high breaking effect and quick dust exhaust.
Description
Technical field
The utility model relates to a kind of drill bit.It specifically is the quick rod bit in a kind of twist drill hole that feels secure of using of engineerings such as tunnel, tunnel, chamber.
Background technology
Engineerings such as underground construction tunnel, tunnel, chamber are in digging process, and in use owing to be subjected to the effect of multiple factors such as the pressure effect of top geotechnical body and country rock self imbibition, very easily produce surrouding rock deformation, that is: the distortion inbreaks of crushing such as tunnel, tunnel, chamber, base plate is upwards heaved, two help to the displacement of center, tunnel, and the result reduces chamber cross section deformations such as tunnel.For preventing that the excessive distortion in tunnel damages in the Underground Engineering Excavation, in excavation, to apply supporting timely usually, supporting method commonly used has forms such as active support, passive protecting and combined supporting.Active support is to be considered to advanced technology, economic and reasonable support form.Active support be in the tunnel around country rock apply support material such as anchor pole and enter in the country rock geotechnical body, make anchor pole and country rock form integral body and realize supporting.Will apply anchor pole to roadway surrounding rock, at first must hole in country rock earlier, skyhook could carry out supporting to country rock in boring then.When top board punches, owing to bore landwaste down in the boring by from Beijing South Maxpower Technology Co. Ltd's operation downwards automatically, so, can not rest on and block drilling rod in the boring, therefore, auger stem commonly used, six rib drilling rods cooperation cut drill just can realize boring that top board two is helped.When base plate punches, because the landwaste under boring in the boring is by deadweight operation downwards, so, be difficult to landwaste is effectively discharged boring, make landwaste rest on the operation of blocking drilling rod in the boring, very difficult to the base plate perforating, auger stem commonly used, six rib drilling rods cooperate " yi word pattern " or " screw type " cut drill, and the landwaste piece under boring is big, inhomogeneous, the bit freezing bar is difficult to send with the geomantic omen.Be difficult to realize boring, make base plate drilling technique slower development, also influenced the development of the active support technology such as bolt support of base plate base plate.As can be seen, at present, that is that all right is ripe to the base plate drilling technique of engineerings such as underground engineering tunnel, tunnel, chamber, uses mostly and bores the facility commonly used such as rod bit that roof hole is used, and causes base plate drilling technique slower development, makes end distension phenomenon be difficult to effective control.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, and a kind of quick rod bit of the twist drill hole that feels secure is provided, and rock breaking efficiency is good, and dust discharge is rapid.
The technical solution of the utility model is as follows: a kind of quick rod bit of the twist drill hole that feels secure, comprise drilling rod and the drill bit that is installed in the drilling rod front end, and drilling rod is an air intake dust discharge drilling rod; Air intake dust discharge drilling rod is the hollow cylindrical shape, has to run through barrel at least two air intake ducts up and down on barrel, and the bottom in air intake duct is communicated with the inner chamber of drilling rod; Drill bit is broken that rock filters drill bit, and matrix is outwardly-bent cambered surface disc, is evenly equipped with some broken rock cutter heads on the disc cambered surface, and is distributed in brokenly the some dust exhausting holes that are communicated with inner chamber drilling rod between the rock cutter head.
The internal diameter of described hollow cylindrical shape drilling rod is bottom-up to be increased gradually, or straight tubular.
Operating principle is: during punching, rig drives drilling rod and drill bit rotates, after cutter on the drill bit becomes certain particle diameter with catalase, landwaste enters drill bit internal by the aperture of chisel edge, and the air inlet road from the air intake dust discharge drilling rod wall of the high-pressure blast on the rig enters drill bit internal, upwards blow landwaste, landwaste high-pressure blast flow down blow and on inhale under the acting in conjunction, along the drilling rod inner chamber upwards, the dust exhaust on rig is discharged.
The beneficial effects of the utility model are: rock breaking efficiency is good, and dust discharge is rapid, the kelly phenomenon can not take place.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the drill bit upward view.
Among the figure: 1, drilling rod, 2, drill bit, 3, the air intake duct, 4, the drilling rod inner chamber, 5, cutter head, 6, dust exhausting hole.
The specific embodiment
As shown in Figure 1, the utility model is made up of drilling rod 1 and the drill bit 2 that is installed in drilling rod 1 front end.
As shown in Figure 1 and Figure 2, drilling rod is an air intake dust discharge drilling rod; Air intake dust discharge drilling rod is the hollow cylindrical shape, has to run through barrel symmetrically arranged two air intake ducts 3 up and down on barrel, and the bottom in air intake duct is communicated with the inner chamber of drilling rod 4.
As Fig. 1, shown in Figure 3, drill bit is broken that rock filters drill bit, and matrix is outwardly-bent cambered surface disc, is evenly equipped with some broken rock cutter heads 5 on the disc cambered surface, is distributed with the some dust exhausting holes 6 that are communicated with the inner chamber 4 of drilling rod between broken rock cutter head.
For improving the dust discharge effect, the internal diameter of described hollow cylinder drilling rod can be made into the bottom-up cone barrel that increases gradually.
During use, drill bit 2 and drilling rod 1 usefulness are threaded togather, again the top of drilling rod are inserted on the rig, and high-pressure blast is opened feeding drilling rod air intake duct 3.During punching downwards, rig is erected, drill bit is downward, and starts rig and rotate drilling rod and open pressure wind, getter device.Along with the operation of rig, drill bit rotates, its broken landwaste of fixing a cutting tool, boring downwards.After landwaste under the cutting is broken and reaches certain particle diameter, dust exhausting hole 6 by chisel edge, landwaste enters drill bit internal, high-pressure blast on the rig enters air inlet road on the drilling rod wall, enters drill bit internal, presses on the wind direction and blows landwaste, landwaste high-pressure blast flow down blow and on inhale under the acting in conjunction, along the drilling rod inner chamber upwards, and along with the internal diameter diffusion that enlarges gradually, the dust exhaust discharge on rig.Along with the increasing of hole depth, outside bed rock bits in hole are constantly portalled by suction according to above technology, landwaste is no longer stopped and the rotation of prevention drilling rod between hole wall and drilling rod, the punching degree of depth is constantly increased, to reach construction requirement.
Claims (2)
1. the quick rod bit in the twist drill hole that feels secure comprises drilling rod (1) and is installed in the drill bit (2) of drilling rod (1) front end that it is characterized in that: drilling rod is an air intake dust discharge drilling rod; Air intake dust discharge drilling rod is the hollow cylindrical shape, has to run through barrel at least two air intake ducts (3) up and down on barrel, and the bottom in air intake duct is communicated with the inner chamber of drilling rod (4); Drill bit is broken that rock filters drill bit, and matrix is outwardly-bent cambered surface disc, is evenly equipped with some broken rock cutter heads (5) on the disc cambered surface, and is distributed in brokenly the some dust exhausting holes (6) that are communicated with inner chamber drilling rod (4) between the rock cutter head.
2. the quick rod bit in a kind of twist drill hole that feels secure according to claim 1 is characterized in that, the internal diameter of described hollow cylindrical shape drilling rod is bottom-up to be increased gradually, or straight tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200363299U CN201024897Y (en) | 2007-04-06 | 2007-04-06 | Quick drill rod drill bit for drilling floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200363299U CN201024897Y (en) | 2007-04-06 | 2007-04-06 | Quick drill rod drill bit for drilling floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201024897Y true CN201024897Y (en) | 2008-02-20 |
Family
ID=39098753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200363299U Expired - Fee Related CN201024897Y (en) | 2007-04-06 | 2007-04-06 | Quick drill rod drill bit for drilling floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201024897Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818621A (en) * | 2010-04-27 | 2010-09-01 | 中建七局第三建筑有限公司 | Hollow drill bit |
| CN104727751A (en) * | 2013-12-18 | 2015-06-24 | 天津世纪天源钻井工程有限公司 | High-strength drilling rig |
-
2007
- 2007-04-06 CN CNU2007200363299U patent/CN201024897Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818621A (en) * | 2010-04-27 | 2010-09-01 | 中建七局第三建筑有限公司 | Hollow drill bit |
| CN104727751A (en) * | 2013-12-18 | 2015-06-24 | 天津世纪天源钻井工程有限公司 | High-strength drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 |