CN205840788U - A kind of multi-functional churning drill bit being applicable to pebble layer - Google Patents
A kind of multi-functional churning drill bit being applicable to pebble layer Download PDFInfo
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- CN205840788U CN205840788U CN201620837982.4U CN201620837982U CN205840788U CN 205840788 U CN205840788 U CN 205840788U CN 201620837982 U CN201620837982 U CN 201620837982U CN 205840788 U CN205840788 U CN 205840788U
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- drill bit
- churning
- pebble layer
- functional
- joint
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Abstract
The utility model discloses a kind of multi-functional churning drill bit for pebble layer, including superposed joint and the drill bit being positioned at bottom, drill bit bottom is uniformly distributed three rotary wings, joint is the geological drill rod coupling thickeied, two lateral apertures tapping are bored in top within a fitting, installing supporting silk cap, nozzle is welded on the internal middle of a cap, in order to handling.It is welded with composite polycrystal-diamond outside rotary wings on multi-functional churning drill bit disclosed in this utility model, when pebble layer is constructed, can whitewash with boring limit, limit, efficiency is greatly improved, and construction costs is low, quality is secure, and two nozzles of this churning drill bit are horizontal nozzles, and is respectively welded at the internal middle of two silk caps, consequently facilitating handling, the slurry pressure of horizontal nozzles injection is concentrated, and spray regime is wider, thus at pebble layer easily lower brill.
Description
Technical field
This utility model relates to a kind of churning drill bit, particularly to a kind of multi-functional churning drill bit for pebble layer.
Background technology
Rotary churning pile be utilize rig rotary jet grouting pipe and shower nozzle are bored be placed at the bottom of design altitude, the slurry that will prepare in advance
After liquid makes liquid stream obtain huge energy by high-voltage generator, eject from the nozzle high speed of slip casting tube edge, form one
The liquid stream that stock energy height is concentrated, directly destroys the soil body, and in course of injection, rotation limit, drilling rod limit promotes, and makes serosity fill with the soil body
Divide stirring mixing, soil forms the column induration of certain diameter, so that ground is reinforced.Construction is generally divided into two
Individual workflow, the most first holes, and bores injection down after pore-forming, is then lifted out rotating.Pass when churning drill bit is jet grouting pile construction
Key member, on the one hand it can go deep into stratum and creep into, on the other hand can be sprayed by serosity.
Churning drill bit of the prior art, its drill bit bottom usually cone, welding alloy sheet, nothing sometimes outside circular cone
Method penetrates hard formation, therefore must use two workflows when pebble layer is constructed, the most first use geological drilling rig or down-the-hole
Drill hole of drilling machine, then churning drill bit to design attitude carries out gunite down, is then lifted out rotary drilling-head, thus forms columnar water
Earth body, reinforces original ground or forms water-stop curtain.Drill bit originally is applicable to soft stratum, for cobble ground
Layer must use the construction technology of churning after first pore-forming, and the Kong Yi first made caves in, and causes rework rate high, long in time limit, thus causes
Construction costs is high, and quality is difficult to ensure.
Patent CN204782763U discloses a kind of drilling bit, and this drill bit is normal diamond drill bit, and it is resistance to
Mill property is weak compared with polycrystalline diamond compact bit, and its shower nozzle is for tilting shower nozzle, is difficult to lower brill at pebble layer.Patent
CN105134087A discloses a kind of triangular pyramidal rotary churning pile alloy bit, and this drill bit is alloy bit, it is impossible to penetrate cobble ground
Layer.
Utility model content
The purpose of this utility model is to provide a kind of multi-functional churning drill bit being applicable to pebble layer, to overcome existing skill
The deficiency of art.
The technical solution of the utility model: a kind of multi-functional churning drill bit for pebble layer, including being positioned at bottom
Drill bit and superposed joint, it is characterised in that drill bit bottom be uniformly distributed three outsides be welded with polycrystalline diamond be combined
The scraper type rotary wings of sheet, joint is the geological drill rod coupling thickeied, and two lateral apertures tapping are bored in top the most within a fitting,
And being provided with supporting silk cap, two horizontal nozzles are respectively welded at the internal middle of two silk caps.
Further, described scraper type rotary wings is welded and fixed with described drill bit.
Further, the angle of said two horizontal nozzles is 180 DEG C.
Further, described drill bit and described joint pass through threaded engagement.
Further, the wall thickness of described drill bit is gradually increased from bottom to up, and the internal diameter on drill bit top and special-purpose steel ball
Internal diameter is identical.
This utility model compared with prior art has the advantage that
In this utility model, the uniform welding three scraper type rotary wings in churning drill bit bottom are that outside is welded with glomerocryst
The rotary wings of diamond compact, thus improve its wearability, two nozzles of this churning drill bit are horizontal nozzles, and weld respectively
Being connected on the internal middle of two silk caps, consequently facilitating handling, the slurry pressure concentration of horizontal nozzles injection, spray regime is wider,
Thus at pebble layer easily lower brill, this churning drill bit is the drill bit that wall thickness is gradually increased from bottom to up, therefore the intensity of drill bit is big,
And the internal diameter on drill bit top is identical with the internal diameter of special-purpose steel ball, when getting into projected depth under churning drill bit, throw in special-purpose steel
Ball, thus do not allow serosity spray from drill bit bottom, but directly eject from horizontal nozzles, so the slurry pressure of injection is more
Greatly, this churning drill bit in pebble layer can limit pore-forming limit churning, the duration is short, and construction costs is low, and quality is secure.
Accompanying drawing explanation
Fig. 1 is the front view of structural representation of the present utility model；
Fig. 2 is the upward view of structural representation of the present utility model.
Description of reference numerals: 1-drill bit, 2-joint, 3-rotary wings, 4-silk cap, 5-horizontal nozzles.
Detailed description of the invention
In order to make this utility model purpose, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to this utility model
It is described in further detail.
Front view such as Fig. 1 institute of the structural representation of the multi-functional churning drill bit for pebble layer of the present utility model
Showing, including being positioned at drill bit 1 and the superposed joint 2 of bottom, described drill bit 1 and described joint 2, by threaded engagement, are boring
Three scraper type rotary wings 3 of 1 bottom uniform welding, it is multiple that described scraper type rotary wings 3 is welded with polycrystalline diamond for outside
Closing the rotary wings of sheet, wearability is high, is difficult to be worn in pebble layer, and the wall thickness of described drill bit 1 the most gradually increases
Adding, therefore the intensity of drill bit is big, and the internal diameter on drill bit top is identical with the internal diameter of special-purpose steel ball；Joint 2 is that the geology thickeied is bored
Knock-off joint, wherein bores two lateral apertures tapping, and is provided with supporting silk cap 4 in joint 2 middle and upper part, two horizontal nozzles 5
Being respectively welded at the internal middle of two silk caps, consequently facilitating load and unload, and the angle of two horizontal nozzles 5 is 180 DEG C, and level is sprayed
The slurry pressure of mouth injection is concentrated, and spray regime is wider, easily lower brill in pebble layer.
When this churning drill bit has just started lower boring, drill bit 1 bottom and two horizontal nozzles 5 all spray serosity, instantly get into and set
During the meter degree of depth, pressure increases, and throws in special-purpose steel ball, thus does not allow serosity spray from drill bit bottom, but directly sprays from horizontal nozzles
Shooting out, so slurry pressure of injection is bigger, and spray regime is wider, thus at pebble layer easily lower brill.
Above-described is only preferred implementation of the present utility model, it is noted that for those skilled in the art
For, without departing under this utility model general idea premise, it is also possible to making some changes and improvements, these also should be considered as
Protection domain of the present utility model.
Claims (5)
1. for a multi-functional churning drill bit for pebble layer, including being positioned at the drill bit (1) of bottom and superposed joint
(2), it is characterised in that drill bit (1) bottom is uniformly distributed three outsides and is welded with the scraper type rotation of composite polycrystal-diamond
The wing (3), joint (2) is the geological drill rod coupling thickeied, and wherein bores two lateral apertures tapping in joint (2) middle and upper part, and
Being provided with supporting silk cap (4), two horizontal nozzles (5) are respectively welded at the internal middle of two silk caps.
A kind of multi-functional churning drill bit for pebble layer, it is characterised in that described scraper type
Rotary wings (3) is welded and fixed with described drill bit (1).
A kind of multi-functional churning drill bit for pebble layer, it is characterised in that said two water
The angle of flat nozzle (5) is 180 DEG C.
A kind of multi-functional churning drill bit for pebble layer, it is characterised in that described drill bit
(1) threaded engagement is passed through with described joint (2).
A kind of multi-functional churning drill bit for pebble layer, it is characterised in that described drill bit
(1) wall thickness is gradually increased from bottom to up, and the internal diameter on drill bit top is identical with the internal diameter of special-purpose steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837982.4U CN205840788U (en) | 2016-08-04 | 2016-08-04 | A kind of multi-functional churning drill bit being applicable to pebble layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837982.4U CN205840788U (en) | 2016-08-04 | 2016-08-04 | A kind of multi-functional churning drill bit being applicable to pebble layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205840788U true CN205840788U (en) | 2016-12-28 |
Family
ID=57617615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620837982.4U Expired - Fee Related CN205840788U (en) | 2016-08-04 | 2016-08-04 | A kind of multi-functional churning drill bit being applicable to pebble layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205840788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907111A (en) * | 2017-04-29 | 2017-06-30 | 吉林大学 | Polar region snow cover fast drilling air drill bit |
-
2016
- 2016-08-04 CN CN201620837982.4U patent/CN205840788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907111A (en) * | 2017-04-29 | 2017-06-30 | 吉林大学 | Polar region snow cover fast drilling air drill bit |
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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: 20161228 Termination date: 20210804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |