CN201763242U - Non-core cylindrical rock drill equipped with sawteeth at bottom - Google Patents
Non-core cylindrical rock drill equipped with sawteeth at bottom Download PDFInfo
- Publication number
- CN201763242U CN201763242U CN201020519931XU CN201020519931U CN201763242U CN 201763242 U CN201763242 U CN 201763242U CN 201020519931X U CN201020519931X U CN 201020519931XU CN 201020519931 U CN201020519931 U CN 201020519931U CN 201763242 U CN201763242 U CN 201763242U
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- drill body
- sawtooth
- slanting
- cylinder drill
- core
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Abstract
A non-core cylindrical rock drill equipped with sawteeth at the bottom comprises a cylindrical drill body and a flange, wherein the flange is disposed at an upper end of the cylindrical drill body. The bottom of the cylindrical drill body is provided with the sawteeth which are uniformly distributed. The bottom of each sawtooth is equipped with bullet picks. The outer wall of the cylindrical drill body is provided with inclined corrugations. The application of the non-core cylindrical rock drill equipped with sawteeth at the bottom of the utility model for a rotary drilling rig enables to achieve little drilling resistance, small load, high operating efficiency and long service lifetime. The non-core cylindrical rock drill, which can cooperate with a short spiral bit, is suitable for bedrock formations with high rigidity, large boulder layers and hard permafrost soils.
Description
Technical field
The utility model relates to a kind of core rock tube of not getting and bores, and the core rock tube of not getting that is provided with sawtooth bottom especially relating to bores.
Technical background
Rotary drilling rig is the construction machinery of pore-forming operation in a kind of suitable building foundation engineering.It is a kind of more special drill bit that the used rock tube of rotary drilling rig bores, and major advantage is that drilling depth is very fast.For the bigger basement rock stratum of hardness, big erratic boulder layer and hard permafrost, need the rock tube to bore to cooperate short augers and Double bottom plate to drag for the sand borer head just can creep into, directly with short augers or revolve and dig bit bore and all compare difficult.The rock tube bores to be divided into and gets core and do not get two kinds in core.Get core rock tube brill lower end and be welded with the sub warhead pick, the leaf of hinge of support core is housed on the cylinder inboard wall.Do not get the leaf of hinge that core rock tube bores does not then have the support core.The main effect that the rock tube bores is to be to empty becoming flexible around the core in the hole, for the follow-up broken core of the short augers of embedding rock that is lowered to is created the broken scope of freedom.Rotary drilling rig when construction, select for use suitable drilling tool to cutting down the consumption of energy, energy conservation, quickening speed of fulfiling hole, improving hole quality and the raising of whole construction efficient is played crucial effects.
Existing do not get core rock tube and be drilled in the use, following problem often occurs:
(1) be the plane because of not getting core rock tube brill bottom, when creeping into, cutting edge and drill bit base plane do not have excessive curved surface, all crowns contact with the stratum simultaneously, cause all crowns simultaneously stressed, make the load of drill body strengthen suddenly, easily cause damage, shorten tube and bore application life;
(2) be arranged in the vertical bar of drill body outer wall, cause that to creep into resistance big, the energy consumption height.
The utility model content
In order to overcome the above-mentioned defective that prior art exists, the utility model provides a kind of resistance that creeps into little, and the rotary drilling rig of long service life bores with the core rock tube of not getting that the bottom is provided with sawtooth.
The technical solution of the utility model is: it comprises cylinder drill body and flange, and described flange is located at cylinder drill body upper end, and cylinder drill body bottom is provided with equally distributed sawtooth, and each sawtooth bottom is provided with the sub warhead pick, and cylinder drill body outer wall is provided with slanting.
Preferred 6 of the sawtooth quantity of described cylinder drill body bottom.
Preferred 2 of the sub warhead pick quantity of each sawtooth bottom, interlaced arrangement is mutually 30 ~ 50 °.
Preferred two groups of the slanting of cylinder drill body outer wall, two groups of slantings are symmetrically distributed on the cylinder drill body outer wall, preferred 12 of every group of slanting, 4 rows, 3 row evenly distribute, and each slanting of middle row is higher than other two row slantings.
Described slanting shape is preferably cuboid or square, and section is a square, and long: wide: height is 7～1: 1: 1, each slanting and cylinder drill body axis were 60 ~ 75 °.
The rotary drilling rig of the utility model bores with the core rock tube of not getting that the bottom is provided with sawtooth, has the following advantages:
(1) because of cylinder drill body bottom is a zigzag, when creeping into, have only serrated portion to contact with the stratum, make between cutting edge (sub warhead pick) and the drill bit base plane and have good excessive curved surface, thereby help reducing the load of cylinder drill body, the protection drilling tool increases the service life;
(2) along with the rotation of drill body is goed deep into, the slanting of cylinder drill body outer wall makes the cylinder drill body creep into along the direction spiral of slanting, and more traditional vertical bar resistance is little; Less because of the slanting aspect ratio again, more traditional slanting resistance is littler, helps cutting down the consumption of energy; And because of each slanting of middle row is higher than other two row slantings, like this, more help broken hole, increase work efficiency.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is a partial structurtes sectional view embodiment illustrated in fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to accompanying drawing, present embodiment comprises cylinder drill body and flange, described flange 3 is located at cylinder drill body 2 upper ends, cylinder drill body 2 bottoms are provided with equally distributed 6 sawtooth 5, each sawtooth 5 bottom is provided with the sub warhead pick 1 of 2 interlaced arrangements, be mutually 40 °, cylinder drill body 2 outer walls are provided with 4, two groups of slantings of two groups of slantings and are symmetrically distributed on the cylinder drill body outer wall, and every group of slanting is 12,4 rows, 3 row evenly distribute, each slanting of middle row is higher than other two row slantings, and described slanting 4 is shaped as cuboid, and section is a square, long: wide: height is 5: 1: 1, and each slanting and cylinder drill body 2 axis are 70 ° of angles.
Use the rotary drilling rig of the utility model to bore with the core rock tube of not getting that the bottom is provided with sawtooth, it is little to creep into resistance, and load is little, high efficiency, long service life can cooperate short augers, is applicable to the bigger basement rock stratum of hardness, big erratic boulder layer and hard permafrost.
Claims (5)
1. the bottom core rock tube of not getting that is provided with sawtooth bores, and comprises cylinder drill body and flange, and described flange is located at cylinder drill body upper end, it is characterized in that, cylinder drill body bottom is provided with equally distributed sawtooth, and each sawtooth bottom is provided with the sub warhead pick, and cylinder drill body outer wall is provided with slanting.
2. the core rock tube of not getting that bottom according to claim 1 is provided with sawtooth bores, and it is characterized in that, the sawtooth of described cylinder drill body bottom is 6.
3. the core rock tube of not getting that bottom according to claim 1 and 2 is provided with sawtooth bores, and it is characterized in that the sub warhead pick of sawtooth bottom is 2, and interlaced arrangement is mutually 30 ~ 50 °.
4. the core rock tube of not getting that bottom according to claim 1 and 2 is provided with sawtooth bores, it is characterized in that, the slanting of cylinder drill body outer wall is two groups, two groups of slantings are symmetrically distributed on the cylinder drill body outer wall, every group of slanting is 12,4 rows, 3 row evenly distribute, and each slanting of middle row is higher than other two row slantings.
5. the core rock tube of not getting that bottom according to claim 1 and 2 is provided with sawtooth bores, and it is characterized in that described slanting is shaped as cuboid or square,, section is a square, long: wide: height is 7～1: 1: 1,, each slanting and cylinder drill body axis are 60 ~ 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020519931XU CN201763242U (en) | 2010-09-07 | 2010-09-07 | Non-core cylindrical rock drill equipped with sawteeth at bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020519931XU CN201763242U (en) | 2010-09-07 | 2010-09-07 | Non-core cylindrical rock drill equipped with sawteeth at bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763242U true CN201763242U (en) | 2011-03-16 |
Family
ID=43715851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020519931XU Expired - Fee Related CN201763242U (en) | 2010-09-07 | 2010-09-07 | Non-core cylindrical rock drill equipped with sawteeth at bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011551A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Non-core rock cylindrical drill with sawteeth at bottom for rotary drilling rig |
| CN103867129A (en) * | 2014-02-27 | 2014-06-18 | 北京市三一重机有限公司 | Rotary drilling rig and drilling bucket thereof |
-
2010
- 2010-09-07 CN CN201020519931XU patent/CN201763242U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011551A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Non-core rock cylindrical drill with sawteeth at bottom for rotary drilling rig |
| CN103867129A (en) * | 2014-02-27 | 2014-06-18 | 北京市三一重机有限公司 | Rotary drilling rig and drilling bucket thereof |
| CN103867129B (en) * | 2014-02-27 | 2017-02-15 | 北京市三一重机有限公司 | Rotary drilling rig and drilling bucket thereof |
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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: 20110316 Termination date: 20130907 |