CN204002575U - Broken ground pore-creating device - Google Patents
Broken ground pore-creating device Download PDFInfo
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- CN204002575U CN204002575U CN201420471362.4U CN201420471362U CN204002575U CN 204002575 U CN204002575 U CN 204002575U CN 201420471362 U CN201420471362 U CN 201420471362U CN 204002575 U CN204002575 U CN 204002575U
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Abstract
A kind of broken ground pore-creating device, it comprises the leading brill, pore-creating portion and the joint that connect successively, three is positioned on same axis; This leading brill by circular platform type before guide shaft, the first flight and bore tooth and form, before this circular platform type, guide shaft is presented thick lower thin shape, the first flight is arranged on the leading axle body of circular platform type, bores tooth and be connected to the lower end of guide shaft before circular platform type; Described pore-creating portion is the hollow spheroid that surface has the second flight, and the lower end of this pore-creating portion is connected with guide shaft upper end before the circular platform type of leading brill; Described joint is connected with the upper end of pore-creating portion, and the first described flight is integrated and is connected with the second flight.The beneficial effects of the utility model are: 1, boring accurately, has been saved concrete use amount, has reduced cost.2, make borehole perpendicularity reach code requirement, thereby improve workmanship.3, stone brick etc. can be squeezed into hole wall, avoid forming hole on hole wall.4, make the loose borehole wall originally become light prolong knot in fact, bore diameter is very accurate.
Description
Technical field
The utility model relates to a kind of drill bit of drilling pouring pile hole, is specially adapted to the stiff broken formation of underground water disappearance.
Background technology
In construction project, often have at present bored pile operation.Mode to common several pore-forming operations, feature and the applicability for the stiff broken formation of lack of water describe below.1, manually digging hole---opening diameter is larger, digs dark one meter of left and right cast-in-situ concrete guard ring, and the guard ring that digs and cast under maintenance a period of time reaches and continues after requirement of strength, loops, until complete wellhole.
This is a kind of construction method falling behind most: efficiency is low, underground labour's safety be difficult to ensure, well diameter is less cannot be applied, be should be superseded technique.Due to collapse hole very easily, cannot be used for broken formation.
2, Churn drill pore-forming---at the bottom of hoist engine control Churn drill repeated stock hole, add water simultaneously and drop into clay slurrying retaining wall.Soil, brick, stone are pounded into mud or powder suspension in mud, with changing slurry, circulating mud precipitation boring mud, dragging for the waste residue producing in the method separation drilling process such as slag.
Churn drill is the boring machine falling behind, and efficiency is low, and useless slurry is many, and fullness coefficient is large.Labour intensity is large, environmental issue is many, deficiency in economic performance.Stiff broken formation efficiency for underground water disappearance is extremely low, and fullness coefficient is very large; Water, guard aperture material, the energy, artificial etc. consumes very large; Discharge value is huge, contaminated environment.
3, slewing drilling machine pore-forming---building stones pulverize to be suspended in mud equally, with changing slurry, circulating mud precipitation boring mud, dragging for the waste residue producing in the method separation drilling process such as slag.
Weak point is still that efficiency is low, and useless slurry is many, and fullness coefficient is large.Labour intensity is large, environmental issue is many, deficiency in economic performance.
4, rotary drilling rig pore-forming---rotary drilling rig is modern state-of-the-art piling machinery, and the pile foundation engineering of European and American developed countries namely uses rotary drilling rig.Be characterized in that power is large, automaticity is high.Price and efficiency are all 20 times of left and right of tradition revolution, Churn drill.Most important feature has three.(1), conveniently start on-site; (2), drilling rod is convenient flexible; (3), use different drilling tools that native stone is directly taken out and needn't be taken out of by mud by pulverize at the bottom of hole.
But the multiple drilling tool that rotary drilling rig uses is all not suitable for broken formation construction.In broken formation perforate difficulty, collapse hole very easily in drilling process.Cause that drilling construction efficiency at broken formation is very low, fullness coefficient is very big, waste in a large number concrete, cause king-sized economic loss.Even also can lead to security incident.The rotary drilling rig pore-forming visible, service efficiency is very high, is used for broken formation with existing drill bit, in structure and use, obviously still has inconvenience and defect, is urgently improved.
Practical experience and the professional knowledge of the utility model people based on being engaged in this type of product design manufacture and enriching for many years, and coordinate reasonably and use, actively research and innovation in addition, founds a kind of drill bit of new structure, makes it have more practicality.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of broken ground pore-creating device, and it is installed on advanced piling machinery rotary drilling rig, in the stiff broken formation boring of underground water disappearance, can make hole wall smooth, solid, stable.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of broken ground pore-creating device, is characterized in that: it comprises the leading brill, pore-creating portion and the joint that connect successively, and three is positioned on same axis; This leading brill by circular platform type before guide shaft, the first flight and bore tooth and form, before this circular platform type, guide shaft is presented thick lower thin shape, the first flight is arranged on the leading axle body of circular platform type, bores tooth and be connected to the lower end of guide shaft before circular platform type; Described pore-creating portion is the hollow spheroid that surface has the second flight, and the lower end of this pore-creating portion is connected with guide shaft upper end before the circular platform type of leading brill; Described joint is connected with the upper end of pore-creating portion, and the first described flight is integrated and is connected with the second flight.
Before circular platform type, the lower end of guide shaft is provided with three and bores tooth, this uniform lower end that is arranged on leading brill of brill teeth directional outer incline.
The height h of pore-creating portion is 450-1200mm, and the upper end diameter d of pore-creating portion is 400-1400mm; The maximum dimension D of the second flight is 500-1500mm; Before circular platform type, the height H of guide shaft and pore-creating portion is 700-1700mm.
Before circular platform type, guide shaft lower end diameter d1 is 250-260mm; Before circular platform type, guide shaft upper end diameter d2 is 290-300mm.
Three are bored tooth vertical direction and install with guide shaft lower end d1 outer contour 10mm before alloy head exceeds circular platform type outside brill tooth head.
The beneficial effects of the utility model are:
1, drill bit of the present utility model makes boring accurately, has improved workmanship, has saved concrete use amount, has reduced cost.
2, drill bit of the present utility model can improve drilling quality, makes borehole perpendicularity reach code requirement, thereby improves workmanship.
3, drill bit of the present utility model can be squeezed into hole wall by stone brick etc., avoids forming hole on hole wall, thereby prevention collapse hole eliminates safe hidden trouble.
4, drill bit of the present utility model makes the loose borehole wall originally become light prolong knot in fact, wellbore stability, and bore diameter is very accurate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Drawing reference numeral: 1, joint; 2, pore-creating portion; 3, the second flight; 4, leading brill; 5, guide shaft before circular platform type; 6, the first flight; 7, bore tooth; The height of h, pore-creating portion; The height of guide shaft and pore-creating portion before H, circular platform type; The upper end diameter of d, pore-creating portion; The maximum gauge of D, the second flight; Guide shaft lower end diameter before d1, circular platform type; Guide shaft upper end diameter before d2, circular platform type.
Detailed description of the invention
Shown in Figure 1: a kind of broken ground pore-creating device, it comprises the leading brill 4, pore-creating portion 2 and the joint 1 that connect successively, three is positioned on same axis; This leading brill 4 is made up of guide shaft before circular platform type 5, the first flight 6 and brill tooth 7, and before this circular platform type, guide shaft 5 is upper-wide lower-thin state, and the first flight 6 is arranged on the leading axle body of circular platform type, and brill tooth 7 is connected to the lower end of the front guide shaft 5 of circular platform type; Described pore-creating portion 2 is the surperficial hollow spheroid with the second flight 3, and the lower end of this pore-creating portion 2 is connected with guide shaft 5 upper ends before the circular platform type of leading brill; Described joint 1 is connected with the upper end of pore-creating portion 2, and the first described flight 6 is integrated and is connected with the second flight 3.
Before circular platform type, the lower end of guide shaft 5 is provided with three and bores tooth 7, the outward-dipping uniform lower end that is arranged on the front guide shaft 5 of circular platform type of this brill tooth 7.
Determine the numerical value of d, D and h, H according to the size in the stake footpath adjustment figure of construction requirement.
The height h of the pore-creating portion of the present embodiment is 450mm, and the upper end diameter d of pore-creating portion is 400mm; The maximum dimension D of the second flight is 500mm; Before circular platform type, the height H of guide shaft and pore-creating portion is 700mm.
Before circular platform type, guide shaft lower end diameter d1 is 250mm; Before circular platform type, guide shaft upper end diameter d2 is 290mm.
Three are bored tooth vertical direction and install with guide shaft lower end d1 outer contour 10mm before alloy head exceeds circular platform type outside brill tooth head.
While using drill bit of the present utility model to carry out bore operation, by joint, drill bit is connected on the drilling rod of rotary drilling rig.When boring, because the hole that three brill teeth of leading brill front end get out is less, institute is so that powerful drilling.In the process of creeping into, the hard material of the composition broken formation such as rubble is hinged into the fragment of 15 centimetres of left and right of diameter.While being drilled into certain depth, leading brill is equal to the axle that inserts the earth, plays the effect of stablizing drilling tool.Subsequently, by the pore-creating portion that leading drill rear end is set, boring is expanded and swept.The inhomogeneous brill that also can not run in stratum.Drilling tool can squeeze away stone, and stone squeezes not to walk drilling tool.When expansion is swept, also hole wall is pushed, in hole, drop into a small amount of loess bonding borehole wall simultaneously, make loose hole wall originally become smooth, solid.Borehole perpendicularity is easy to reach code requirement, improves drilling quality, thereby improves workmanship.By pushing and sweep to expand, part building waste and stone are clamp-oned to the borehole wall, avoided forming hole on hole wall, prevention collapse hole, eliminates safe hidden trouble.
Pore-creating device in broken ground of the present utility model has carried out examination at the stiff broken formation of underground water disappearance and has beaten, compare with Churn drill pore-forming, efficiency increases many times, significantly reduce fullness coefficient, save water and guard aperture loess, discharge also seldom, every cube approximately reduces costs and reaches 500 yuan, can make the project of loss or meagre profit become the project that profit is very high.
The scope of application of the present utility model is the stiff broken formation of underground water disappearance.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model.The auxiliary guard aperture measure in being meticulous and attending to minutes details in everything can be expanded the scope of application.Protection domain of the present utility model is defined by the claims.Those skilled in the art can, in essence of the present utility model and protection domain, make various amendments or be equal to replacement the utility model, this amendment or be equal to replacement and also should be considered as dropping in protection domain of the present utility model.
Claims (5)
1. a broken ground pore-creating device, is characterized in that: it comprises the leading brill, pore-creating portion and the joint that connect successively, and three is positioned on same axis; This leading brill by circular platform type before guide shaft, the first flight and bore tooth and form, before this circular platform type, guide shaft is presented thick lower thin shape, the first flight is arranged on the leading axle body of circular platform type, bores tooth and be connected to the lower end of guide shaft before circular platform type; Described pore-creating portion is the hollow spheroid that surface has the second flight, and the lower end of this pore-creating portion is connected with guide shaft upper end before the circular platform type of leading brill; Described joint is connected with the upper end of pore-creating portion, and the first described flight is integrated and is connected with the second flight.
2. pore-creating device in broken ground according to claim 1, is characterized in that: before circular platform type, the lower end of guide shaft is provided with three and bores tooth, the uniform lower end that is arranged on the front guide shaft of circular platform type of this brill teeth directional outer incline.
3. pore-creating device in broken ground according to claim 1 and 2, is characterized in that: the height (h) of pore-creating portion is 450-1200mm, and the upper end diameter (d) of pore-creating portion is 400-1400mm; The maximum gauge (D) of the second flight is 500-1500mm; Before circular platform type, the height (H) of guide shaft and pore-creating portion is 700-1700mm.
4. pore-creating device in broken ground according to claim 3, is characterized in that: before circular platform type, guide shaft lower end diameter (d1) is 250-260mm; Before circular platform type, guide shaft upper end diameter (d2) is 290-300mm.
5. pore-creating device in broken ground according to claim 4, is characterized in that: three are bored tooth vertical direction and install with guide shaft lower end (d1) outer contour 10mm before alloy head exceeds circular platform type outside brill tooth head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471362.4U CN204002575U (en) | 2014-08-20 | 2014-08-20 | Broken ground pore-creating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471362.4U CN204002575U (en) | 2014-08-20 | 2014-08-20 | Broken ground pore-creating device |
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| CN204002575U true CN204002575U (en) | 2014-12-10 |
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| CN201420471362.4U Active CN204002575U (en) | 2014-08-20 | 2014-08-20 | Broken ground pore-creating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153712A (en) * | 2014-08-20 | 2014-11-19 | 中化岩土工程股份有限公司 | Pore-forming device for gravelly ground |
-
2014
- 2014-08-20 CN CN201420471362.4U patent/CN204002575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153712A (en) * | 2014-08-20 | 2014-11-19 | 中化岩土工程股份有限公司 | Pore-forming device for gravelly ground |
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