CN2100476U - Threaded connection type slotting drill bit - Google Patents
Threaded connection type slotting drill bit Download PDFInfo
- Publication number
- CN2100476U CN2100476U CN 91213968 CN91213968U CN2100476U CN 2100476 U CN2100476 U CN 2100476U CN 91213968 CN91213968 CN 91213968 CN 91213968 U CN91213968 U CN 91213968U CN 2100476 U CN2100476 U CN 2100476U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- connecting rod
- thread
- screw
- bit
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 239000011435 rock Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000004579 marble Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
A thread-connected slotting drill bit is composed of drill bit, connecting rod, slotting cutter and drill rod, and features that the left-handed wavy threads are made up by drilling tool at both ends of connecting rod and at drill rod head for preventing the drill bit from falling off, so it is suitable for drilling deep blast hole with big aperture (phi 42-90 mm), and the slotting cutter can make the edge of blast hole have slot to form pre-splitting slot.
Description
The utility model relates to a kind of drilling tool, especially a kind of drilling tool that can make the edge fluting of boring when boring circular hole.
In modern technologies, general boring in blast working can only get out circular hole, during explosion because the randomness of explosion direction, the explosion direction can not be controlled, particularly in the roadway blast working in underground construction, roadway forming is wayward, bigger backbreaking and owe often occurring digs, influence safety and construction quality, therefore need a kind of energy Drilling to go out the slotting drill bit in the big gun hole of with groove, though existing fluting drilling tool can reach the purpose that Drilling goes out the big gun hole of with groove, but the tapering that is connected to of its bore bit and drill steel is connected, bore bit is taken off easily when boring, and only is applicable to the big gun hole of Drilling than minor diameter.
The purpose of this utility model is in order to overcome above-mentioned weak point, a kind of improved fluting drilling tool is provided, be that a kind of bore bit adopts the open flume type drill bit that is threaded with drill steel, it has overcome the caducous shortcoming of bore bit, and be applicable to big (the big gun hole of φ 42～90mm) of the darker pore diameter range of Drilling, this open flume type drilling tool is that a kind of air rock drill and electric rock drilling function used once gets out new-type drill bit with the big gun hole of a plurality of grooves in rock or concrete, and the sharp corner that can make groove forms to give splitting splits seam, can produce very big stress when blowing up with dynamite or carrying out fragmentation with the Static crushing agent concentrates, make by blasting body along the groove cracking of being left, controlled blasting direction effectively, make explosive forming regular, be applicable to smooth blasting, improve the construction quality in tunnel effectively, make adjoining rock stability, increase safety, be easy to realize the deep trouth Cut Blasting, especially when constructional materialss such as exploitation granite and marble, the size and dimension of control production work stone effectively, can realize directed cutting and the exploitation of high efficiency bulk, improve production efficiency, reduce cost, save material.It can be widely used in the boring of roadway blast working in colliery, railway, water power and the military engineering and surface blasting construction.
The purpose of this utility model realizes in the following manner, it is made up of rock drill bit, connecting rod, grooving tool and drill steel, one end of connecting rod is that waveform left hand thread is connected with bore bit, welding-on has carbide alloy fluting cutter head on the grooving tool, its sky is sleeved on the connecting rod, the other end of connecting rod is left-handed waveform internal thread, is connected with drill steel.Drive connecting rod and rock drill bit rotation by hammer drill by drill steel during boring, and impact, grooving tool so it does not change, is left groove and only withstand shocks to act on by the convex shoulder on the connecting rod owing to be that sky is enclosed within on the connecting rod.
Description of drawings:
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the A-A sectional view of structure chart of the present utility model.
Fig. 3 is the polylith alloy cutter head of the A-A sectional view of structure chart of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail; As Fig. 1, shown in 2 and 3, it is by rock drill bit (1), connecting rod (2), grooving tool (3) and drill steel (4) are formed, wherein, rock drill bit (1) is for studding with the cross or the post profile of tooth bore bit of hard alloy blocks, the centre has a water outlet circular hole, tail end has the left-handed waveform internal thread of making by the drilling tool standard, be connected with connecting rod (2) one ends by this screw thread, connecting rod (2) is the ladder cylinder made from alloy steel, an axially extending bore is arranged in the middle of it, the one end is left-handed waveform external screw thread, the other end is left-handed waveform internal thread, and grooving tool (3) is the round buss type fluting cutter head that welding-on has 2 or polylith carbide alloy, and the cutter sky is enclosed within on the connecting rod (2), drill steel (4) is a cylinder that axially extending bore is arranged, and the one end has left-handed waveform external screw thread to be connected with the internal thread of connecting rod (2).
During boring, drive connecting rod (2) and rock drill bit (1) rotation by hammer drill by drill steel (4), and impact, grooving tool (3) is enclosed within on the cylindrical of connecting rod (2) owing to sky, so it does not rotate with bore bit (1), and only by the convex shoulder effect of withstanding shocks on the connecting rod (2), so creeping into along with rock drill bit (1), grooving tool (3) will be left two or more grooves in boring, the direction of groove can be controlled as required, as long as block grooving tool with special spanner, make it be fixed in certain orientation on demand, after grooving tool enters rock, take off special spanner, grooving tool can be left a plurality of grooves according to selected direction in circular hole.
Claims (4)
1, a kind of screw connected slotting drill bit that is applicable to the deep hole smooth blasting and the marble exploitation of stone head, it is made up of rock drill bit (1), connecting rod (2), grooving tool (3) and drill steel (4); Rock drill bit is the bull bit that welding-on has hard alloy blocks, has weep hole in the middle of it, and tail end has the left-handed waveform internal thread of making by the drilling tool standard; It is characterized in that an end has external screw thread and is set with a socket type grooving tool (3) on the female hollow ladder column type connecting rod of the other end (2), the tailing screw flight of connecting rod is connected with open circles column type drill steel (4), and its head portion is connected with rock drill bit (1).
2,, it is characterized in that the last welding-on of said grooving tool (3) has 2 or polylith carbide alloy according to the said screw connected slotting drill bit of claim 1.
3,, it is characterized in that external screw thread and the internal thread on the said connecting rod (2) is left-handed corrugated thread according to the said screw connected slotting drill bit of claim 1.
4,, it is characterized in that said connecting rod (2) makes with alloy steel according to the said screw connected slotting drill bit of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213968 CN2100476U (en) | 1991-06-23 | 1991-06-23 | Threaded connection type slotting drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213968 CN2100476U (en) | 1991-06-23 | 1991-06-23 | Threaded connection type slotting drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2100476U true CN2100476U (en) | 1992-04-01 |
Family
ID=4922229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91213968 Withdrawn CN2100476U (en) | 1991-06-23 | 1991-06-23 | Threaded connection type slotting drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2100476U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590541A (en) * | 2018-05-04 | 2018-09-28 | 贵州迈锐钻探设备制造有限公司 | Drill bit assembly and driving rock drill |
| CN112832774A (en) * | 2020-12-30 | 2021-05-25 | 重庆交通大学 | A groover for tunnel chaplet face blasting excavation |
| CN113027346A (en) * | 2021-04-19 | 2021-06-25 | 重庆交通大学 | A deformation drill bit for tunnel chaplet face blasting excavation |
| CN114837558A (en) * | 2022-05-27 | 2022-08-02 | 重庆交通大学 | Drill jumbo-based tool bit sleeve for directional grooving of special-shaped holes |
| CN114856449A (en) * | 2022-05-27 | 2022-08-05 | 重庆交通大学 | Retractable tool bit set for directionally grooving irregular blasthole |
| CN115538930A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Special-shaped hole slotting tool bit orienting device based on rock drilling trolley drill arm |
| CN115596349A (en) * | 2022-10-20 | 2023-01-13 | 重庆交通大学（Cn） | Drilling and cutting integrated device for rock drill |
-
1991
- 1991-06-23 CN CN 91213968 patent/CN2100476U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590541A (en) * | 2018-05-04 | 2018-09-28 | 贵州迈锐钻探设备制造有限公司 | Drill bit assembly and driving rock drill |
| CN112832774A (en) * | 2020-12-30 | 2021-05-25 | 重庆交通大学 | A groover for tunnel chaplet face blasting excavation |
| CN112832774B (en) * | 2020-12-30 | 2023-12-22 | 重庆交通大学 | Grooving device for blasting excavation of tunnel spreader surface |
| CN113027346A (en) * | 2021-04-19 | 2021-06-25 | 重庆交通大学 | A deformation drill bit for tunnel chaplet face blasting excavation |
| CN114837558A (en) * | 2022-05-27 | 2022-08-02 | 重庆交通大学 | Drill jumbo-based tool bit sleeve for directional grooving of special-shaped holes |
| CN114856449A (en) * | 2022-05-27 | 2022-08-05 | 重庆交通大学 | Retractable tool bit set for directionally grooving irregular blasthole |
| CN115538930A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Special-shaped hole slotting tool bit orienting device based on rock drilling trolley drill arm |
| CN115596349A (en) * | 2022-10-20 | 2023-01-13 | 重庆交通大学（Cn） | Drilling and cutting integrated device for rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |