CN201090135Y - Combined drilling tool - Google Patents
Combined drilling tool Download PDFInfo
- Publication number
- CN201090135Y CN201090135Y CNU2007200924147U CN200720092414U CN201090135Y CN 201090135 Y CN201090135 Y CN 201090135Y CN U2007200924147 U CNU2007200924147 U CN U2007200924147U CN 200720092414 U CN200720092414 U CN 200720092414U CN 201090135 Y CN201090135 Y CN 201090135Y
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- drilling
- downhole hammer
- air
- hollow drill
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a combination drilling tool, which comprises a hollow drilling rod with a pneumatic drive downhole hammer at the end part, wherein an air inlet pipe connected with an air supply is covered at the inner part of the hollow drilling rod, and the air outlet opening of the air inlet pipe is connected with the air guide opening of the downhole hammer; an outer protecting pipe with the length matched with the length of the hollow drilling rod is covered at the outer part of the hollow drilling rod, and the both ends of the outer protecting pipe are connected with the hollow drilling rod into a whole. After the drilling tool is installed on a power unit through a connecting disk, the downhole hammer circularly and vertically impacts and drills, compressed air is conveyed to the downhole hammer via the air inlet pipe and drives the downhole hammer to work, exhaust air is discharged through the exhaust hole of a drilling bit, the drilling bit is cooled, and rock residue is carried is returned to the ground surface along an annular space between the hole wall and the outer protecting pipe, at the moment, the outer protecting pipe is interlocked with the hollow drilling rod, to protect the integrality of the hole well; simultaneously, the power unit drives the hollow drilling rod and the pneumatic drive downhole hammer to perform temperate drilling and relative drilling, and to quicken the crushing effect to the rock.
Description
Technical field
The utility model relates to the disposable deep hole operation of multifunctional pile driver drilling tool, especially relates to a kind of way-type drilling unit.
Background technology
At present, static pressure or hammering preformed pile, long screw pouring piles, CFG stake, tube-sinking cast-in-situ pile etc. are widely adopted in pile foundation, but if meet thick gravel layer, weathering boulder or rock intercalation, explosion piece stone or the bad grounds such as slabstone fill stratum, basement rock stratum in particle diameter big layer position, then can't pass, common processing method is for abandoning above-mentioned stake type, adopt additive method such as drilling hole stake to handle, both increased engineering cost, can not guarantee that again engineering finishes on schedule.
The utility model content
The purpose of this utility model is to provide a kind of way-type drilling unit that can improve drilling efficiency.
For achieving the above object, the utility model can be taked following technical proposals:
Way-type drilling unit described in the utility model comprises that the end has the hollow drill of pneumatic down hole hammer, and the internal sleeve of described hollow drill is equipped with the blast pipe that is connected with wind regime, and the air outlet of described blast pipe is connected with the air guide hole of down-the-hole hammer.
Be covered with the outer pillar that the length of length and hollow drill adapts in the external packets of described hollow drill, the both ends and the hollow drill of described outer pillar are connected as a single entity.
The outer peripheral face of described hollow drill is provided with helical blade.
After advantage of the present utility model is to be installed on the unit head by tie-plate the combinations thereof drilling tool, pneumatic down hole hammer direct circulation vertical impact creeps into, the compressed air that is produced by wind regime is transferred to pneumatic down hole hammer and drives its work done through inner blast pipe, the waste gas of discharging is discharged through the drill bit steam vent, at the bottom of the flushing hole, the cooling drill bit, and carry the rock slag and return the face of land along the annular gap of hole wall; Deslagging better effects if when making work when formation drilling does not have big gauge block stone bit freezing risk, can be provided with helical blade on the hollow drill outer peripheral face, when drilling rod rotated, bits upwards blew out along elongated helical blade under pneumatic effect, have better deslagging effect; When the external packets at hollow drill is covered with the outer pillar that the length of length and hollow drill adapts, the both ends and the hollow drill that are somebody's turn to do outer pillar are connected as a single entity, during work, the rock slag along hole wall and outside annular gap between the pillar return to the face of land, at this moment, outer pillar and hollow drill interlock are when high velocity air washes away hole wall, hole wall is subjected to outer pillar protection and is difficult for caving in piece, helps protecting the integrality of hole wall; In pneumatic down hole hammer impact grinding rock or gravel layer, unit head drives hollow drill and pneumatic down hole hammer carries out the pressure of the drill and the rotary drilling of appropriateness, can grind the crushed rocks at quarter, the variation that the pneumatic down hole hammer impact position is not stopped again, the alloy projecting point of pneumatic down hole hammer bottom is all impacted at diverse location at every turn, accelerate fragmentation greatly to rock, need not change just energy all promising policy deep hole operation of drilling tool, the pore-forming efficiency height, quality good (assurance verticality) has solved pile foundation and need penetrate irregular stone, erratic boulder, boulder and ovum gravel, bad ground such as base edge grade draw the hole technical barrier.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
The specific embodiment
Embodiment 1:
As shown in Figure 1, way-type drilling unit described in the utility model, comprise that the end has the hollow drill 2 of pneumatic down hole hammer 1, described hollow drill 2 is installed on the unit head 7 of rig by tie-plate 6, the internal sleeve of described hollow drill 2 is equipped with the blast pipe 3 that is connected with wind regime, and the air outlet of described blast pipe 3 is connected with the air guide hole of down-the-hole hammer 1; Be covered with the outer pillar 4 that the length of length and hollow drill 2 adapts in the external packets of described hollow drill 2, the both ends of described outer pillar 4 and hollow drill 2 are connected as a single entity.
Embodiment 2:
As shown in Figure 2, way-type drilling unit described in the utility model, comprise that the end has the hollow drill 2 of pneumatic down hole hammer 1, described hollow drill 2 is installed on the unit head 7 of rig by tie-plate 6, the internal sleeve of described hollow drill 2 is equipped with the blast pipe 3 that is connected with wind regime, the air outlet of described blast pipe 3 is connected with the air guide hole of down-the-hole hammer 1, and the outer peripheral face of described hollow drill 2 is provided with helical blade 5.
Claims (3)
1. way-type drilling unit, comprise that the end has the hollow drill of pneumatic down hole hammer (1) (2), it is characterized in that: the internal sleeve of described hollow drill (2) is equipped with the blast pipe (3) that is connected with wind regime, and the air outlet of described blast pipe (3) is connected with the air guide hole of down-the-hole hammer (1).
2. way-type drilling unit according to claim 1, it is characterized in that: be covered with the outer pillar (4) that the length of length and hollow drill (2) adapts in the external packets of described hollow drill (2), the both ends of described outer pillar (4) and hollow drill (2) are connected as a single entity.
3. way-type drilling unit according to claim 1 is characterized in that: the outer peripheral face of described hollow drill (2) is provided with helical blade (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200924147U CN201090135Y (en) | 2007-10-29 | 2007-10-29 | Combined drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200924147U CN201090135Y (en) | 2007-10-29 | 2007-10-29 | Combined drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090135Y true CN201090135Y (en) | 2008-07-23 |
Family
ID=39861895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200924147U Expired - Lifetime CN201090135Y (en) | 2007-10-29 | 2007-10-29 | Combined drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090135Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864895A (en) * | 2010-06-04 | 2010-10-20 | 中国地质大学（北京） | Positive-circulation drilling and dedusting technique of chamber down-hole hammer and double-wall pipe |
| CN102434096A (en) * | 2010-09-29 | 2012-05-02 | 张家口汇洋机械有限公司 | Spiral percussion drill |
| CN103266598A (en) * | 2013-06-06 | 2013-08-28 | 赵守众 | Equipment for one-time pile forming into rock of screw pile driver and pile forming method |
| WO2014114090A1 (en) * | 2013-01-23 | 2014-07-31 | Yan Huikui | Engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in competent bed |
| CN104929520A (en) * | 2015-06-05 | 2015-09-23 | 宋姝娴 | Hole protecting drilling machine with circular pipe |
-
2007
- 2007-10-29 CN CNU2007200924147U patent/CN201090135Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864895A (en) * | 2010-06-04 | 2010-10-20 | 中国地质大学（北京） | Positive-circulation drilling and dedusting technique of chamber down-hole hammer and double-wall pipe |
| CN102434096A (en) * | 2010-09-29 | 2012-05-02 | 张家口汇洋机械有限公司 | Spiral percussion drill |
| WO2014114090A1 (en) * | 2013-01-23 | 2014-07-31 | Yan Huikui | Engineering drilling rig capable of super-fluid concrete pressure-grouted pile construction in competent bed |
| CN103266598A (en) * | 2013-06-06 | 2013-08-28 | 赵守众 | Equipment for one-time pile forming into rock of screw pile driver and pile forming method |
| CN103266598B (en) * | 2013-06-06 | 2014-11-26 | 赵守众 | Equipment for one-time pile forming into rock of screw pile driver and pile forming method |
| CN104929520A (en) * | 2015-06-05 | 2015-09-23 | 宋姝娴 | Hole protecting drilling machine with circular pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201090135Y (en) | Combined drilling tool | |
| CN100494619C (en) | Construction method and device for pile foundation embedded in rock | |
| CN2906026Y (en) | Double-barrel hard rock core drill for large-diameter pile hole | |
| CN103244051A (en) | Combined down-hole hammer drilling tool and pile forming construction method thereof | |
| CN111577136A (en) | High-pressure jet grouting pile hole guiding construction integrated device and construction method thereof | |
| CN205638237U (en) | Rock -entering tamps drill bit | |
| CN201428375Y (en) | Pneumatic impact hammer | |
| CN103277037A (en) | Pipe pile leading-hole construction method under boulder cluster geological condition | |
| CN107420047A (en) | A kind of composite multi-functional ground spiral drill | |
| CN213205535U (en) | Rock-entering reaming drilling tool | |
| CN1766276B (en) | DTH hammer double-tube drilling equipment and drilling method thereof | |
| CN105019917B (en) | Impact drilling type advanced jet grouting pipe shed construction device and construction method | |
| CN113669002A (en) | Hard rock stratum combined hole forming construction method for large-diameter cast-in-place pile | |
| CN106761422A (en) | A kind of staged Percusion spiral drill head | |
| CN202559338U (en) | Screwing pile using air | |
| CN111335312A (en) | Rock-entering construction process for large-diameter lock catch steel pipe pile | |
| CN112983258A (en) | Down-the-hole hammer rapid hole forming construction method for unconsolidated rock stratum geology | |
| KR101183445B1 (en) | Excavating head having large-diameter hydraulic hammer and excavating method using the same | |
| CN102628268A (en) | Cyclone pile | |
| CN211647984U (en) | Device for improving rock-entering efficiency of rotary drilling rig | |
| CN102071682A (en) | Method for correcting inclined hole formed by high strength stratum bridge drilling pile in karst growing area | |
| CN210714476U (en) | Down-the-hole hammer drill bit | |
| CN207033350U (en) | A kind of composite multi-functional ground spiral drill | |
| CN108894230B (en) | Method for treating boulder during sinking of pile casing | |
| CN109750665B (en) | Treatment method for boulder encountered during sinking of steel pile casing of drilled pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |