CN204663391U - Single cone single-screw drill bit - Google Patents
Single cone single-screw drill bit Download PDFInfo
- Publication number
- CN204663391U CN204663391U CN201420044375.3U CN201420044375U CN204663391U CN 204663391 U CN204663391 U CN 204663391U CN 201420044375 U CN201420044375 U CN 201420044375U CN 204663391 U CN204663391 U CN 204663391U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- tooth
- drilling rod
- tooth shape
- helical blade
- 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
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Abstract
The utility model relates to long-spiral drilling machine, specifically a kind of single cone single-screw drill bit.Solve the problem of existing drill bit hardness deficiency and poor stability, plant single cone single-screw drill bit, comprise drilling rod and drilling rod week the helical blade that is provided with of side, drilling rod bottom is provided with three tooth shape sword teeth, the center of three tooth shape sword teeth is provided with ventilation holes, the bar heart of drilling rod is provided with air chimney, the ventilation holes of three tooth shape sword tooth centers, ventilation opening stacks bottom of air chimney one end, the top of other end stacks.The utility model has good cooling-down effect to drill bit, therefore has very strong abrasion resistance.The helical blade of taper and tooth shape sword tooth have good stability when drill bit is turned round.
Description
Technical field
The utility model relates to long-spiral drilling machine, specifically a kind of single cone single-screw drill bit.
Background technology
When operation is digged pit in construction, drill bit, around vertical shaft rotary, moves axially simultaneously.Soil is cut under the moment of torsion and responsive to axial force of drill bit, is destroyed and smashes to ravel under the extruding and centrifugal action of working-blade, forms native stream and presses to hole wall, simultaneously along page elevator to earth's surface.When native stream moves to without hole wall stop place, because centrifugal action hack is thrown around hole, complete whole process of digging pit.
In use there is following problem in current drill bit: (1) drill bit produces heat in rotary course, makes temperature of diamond bit raise thus affect hardness; (2) poor stability during drill bit revolution, easily forms inclined hole.
Summary of the invention
The utility model, in order to solve the problem of existing drill bit hardness deficiency and poor stability, provides a kind of single cone single-screw drill bit especially.
The utility model takes following technical scheme: a kind of single cone single-screw drill bit, comprise drilling rod and drilling rod week the helical blade that is provided with of side, drilling rod bottom is provided with three tooth shape sword teeth, the center of three tooth shape sword teeth is provided with ventilation holes, the bar heart of drilling rod is provided with air chimney, the ventilation holes of three tooth shape sword tooth centers, ventilation opening stacks bottom of air chimney one end, the top of other end stacks.Connect air chimney it to be communicated with air compressor machine on drilling rod top, the rock ballast that drill bit impact grinds by the blast that air compressor machine provides in the process that rock mass creeps into blows to both sides, returns out ground by helical blade, ensures that tooth shape sword tooth directly contacts with original state rock mass always.The blast alloy drill bit that air compressor machine provides simultaneously has certain cooling effect, ensures that drill bit has the intensity of gram rock.
Described, helical blade is evenly provided with some tooth shape sword teeth.In the process that rock stratum is crept into, first by three tooth shape sword teeth of end, rock mass is vibrated, impacts, cut under drill bit axial pressure and drilling rod drive, then by the tooth shape sword tooth on helical blade, mill is carried out to rock mass and cut.
Described, tooth shape sword tooth and drilling rod or helical blade, by screwed connection, are changed after being convenient to wear and tear.
Described, helical blade is provided with 4 rows, and helical blade entirety is tapered.Good stability during revolution, can bore soil and can bore rock again.
Compared with prior art, the utility model has good cooling-down effect to drill bit, therefore has very strong abrasion resistance.The helical blade of taper and tooth shape sword tooth have good stability when drill bit is turned round.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model lateral view;
1-tooth shape sword tooth in figure, 2-helical blade, 3-air chimney, 4-drilling rod.
Detailed description of the invention
As shown in Figure 1, 2, a kind of single cone single-screw drill bit, comprise drilling rod 4 and drilling rod week the helical blade 2 that is provided with of side, drilling rod 4 bottom is provided with three tooth shape sword teeth 1, the center of three tooth shape sword teeth 1 is provided with ventilation holes, the bar heart of drilling rod 4 is provided with air chimney 3, the ventilation holes of three tooth shape sword tooth 1 centers, ventilation opening stacks 4 bottom of air chimney 3 one end, the top of other end stacks 4.Whole carbide drill is processed by the five metals processing factory of specialty, avoids causing notch sex change to affect tooth sword when adopting gas cutting alloy vane at the construction field (site) stressed.Its intensity much larger than rock mass strength, and has very strong abrasion resistance.
Described, helical blade 2 is evenly provided with some tooth shape sword teeth 1.
Described, tooth shape sword tooth 1 passes through screwed connection with drilling rod 4 or helical blade 2.
Described, helical blade 2 is provided with 4 rows, and helical blade 2 is overall tapered.
Claims (4)
1. a single cone single-screw drill bit, comprise drilling rod (4) and drilling rod week the helical blade (2) that is provided with of side, it is characterized in that: drilling rod (4) bottom is provided with three tooth shape swords tooth (1), the center of three tooth shape swords tooth (1) is provided with ventilation holes, the bar heart of drilling rod (4) is provided with air chimney (3), the ventilation holes of three tooth shape sword tooth (1) centers, ventilation opening stacks (4) bottom of air chimney (3) one end, the top of other end stacks (4).
2. single cone single-screw drill bit according to claim 1, is characterized in that: helical blade (2) is evenly provided with some tooth shape swords tooth (1).
3. single cone single-screw drill bit according to claim 1 and 2, is characterized in that: tooth shape sword tooth (1) passes through screwed connection with drilling rod (4) or helical blade (2).
4. single cone single-screw drill bit according to claim 1, it is characterized in that: helical blade (2) is provided with 4 rows, helical blade (2) is overall tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044375.3U CN204663391U (en) | 2014-01-24 | 2014-01-24 | Single cone single-screw drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044375.3U CN204663391U (en) | 2014-01-24 | 2014-01-24 | Single cone single-screw drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663391U true CN204663391U (en) | 2015-09-23 |
Family
ID=54133783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044375.3U Expired - Fee Related CN204663391U (en) | 2014-01-24 | 2014-01-24 | Single cone single-screw drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204663391U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401610A (en) * | 2018-01-19 | 2018-08-17 | 合肥净龙环保科技有限公司 | A kind of solar power generation tree planting digging apparatus |
| CN108401611A (en) * | 2018-01-19 | 2018-08-17 | 合肥净龙环保科技有限公司 | A kind of natural energy cooling tree planting digging apparatus free of discontinuities |
| CN112128783A (en) * | 2020-09-14 | 2020-12-25 | 衡阳市大成锅炉有限公司 | Combined slag discharging device |
-
2014
- 2014-01-24 CN CN201420044375.3U patent/CN204663391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401610A (en) * | 2018-01-19 | 2018-08-17 | 合肥净龙环保科技有限公司 | A kind of solar power generation tree planting digging apparatus |
| CN108401611A (en) * | 2018-01-19 | 2018-08-17 | 合肥净龙环保科技有限公司 | A kind of natural energy cooling tree planting digging apparatus free of discontinuities |
| CN112128783A (en) * | 2020-09-14 | 2020-12-25 | 衡阳市大成锅炉有限公司 | Combined slag discharging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20220124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |