CN206722766U - A kind of screw cone soil compaction drill bit - Google Patents
A kind of screw cone soil compaction drill bit Download PDFInfo
- Publication number
- CN206722766U CN206722766U CN201720481944.4U CN201720481944U CN206722766U CN 206722766 U CN206722766 U CN 206722766U CN 201720481944 U CN201720481944 U CN 201720481944U CN 206722766 U CN206722766 U CN 206722766U
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- soil compaction
- apex point
- drill bit
- blade
- cone
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- 239000002689 soil Substances 0.000 title claims abstract description 131
- 238000005056 compaction Methods 0.000 title claims abstract description 101
- 241000826860 Trapezium Species 0.000 claims description 8
- 238000005553 drilling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
It the utility model is related to a kind of screw cone soil compaction drill bit.Including drill bit core pipe, spiral cylinder soil compaction blade, screw cone soil compaction blade, apex point, cutting tooth and pin, spiral cylinder soil compaction blade is in drill bit core pipe trunk portion, screw cone soil compaction blade is in drill bit core pipe cone portion, cutting tooth is mounted in screw cone soil compaction blade end, apex point is flexibly connected with drill bit core pipe cone portion, and described apex point is：The upper end outer rim for forming the taper apex point body of apex point symmetrically cuts out the curved portions of two depressions, cutting tooth end is less than apex point body upper surface, it is and corresponding with the curved portions of depression, two spiral apex point blades are arranged with apex point body between the curved portions of two depressions, apex point body lower end is connected with vertex (vertices), apex point body upper surface is provided with otic placode I, and apex point body is flexibly connected with cone portion by otic placode I, the otic placode II sold and be arranged on inside drill bit core pipe cone portion, and rotated around pin.Soil compaction effect is more preferable during the utility model construction drilling, more reasonable structure.
Description
Technical field
It the utility model is related to a kind of foundation pile of building screw cone soil compaction drill bit.
Background technology
With wideling popularize for energy-saving and emission-reduction, it is increasing that spiral Squeezing Soil Pile occupies ratio in building pile foundation.It is existing
Spiral Squeezing Soil Pile in, screw rod pile and SDS stakes using more, have very strong on soft stratum compared with long screw auger drilling deposited pile
Advantage, due to being influenceed by construction technology process and soil compaction drilling tool structure, both soil compaction pile-type are difficult (or to contain in hardpan
Hard sandwich) in the range of apply.They mainly meet requirement for bearing capacity by the resistance of increase stake side.Spiral conical soil compaction pile is profit
With screw cone soil compaction drill bit and standard soil compaction gauge BHA, drilling and forming hole is simultaneously pumped filling pile, and adaptation stratum is wide, pile
Quality is high.The shaping of stake holes relies primarily on the cone structure part in screw cone drill bit, and it by section is trapezoidal that cone structure, which is,
Screw cone soil compaction blade and cone core pipe composition.In drilling construction, the board-like drill bit of triangle initially enters rock-soil layer
Interior extrude the soil body is swelled, and with drilling, the soil body of protuberance is drilled, and nose cone structure is squeezed arrives stake holes side wall, and has a small amount of soil
Body is sent at column structure by blade.The continuous inclined-plane extruding soil of the only outer dew of screw cone soil compaction blade in cone structure
Body, also have a small amount of soil body during squeezing and continuously from bottom to top transmitted by screw cone soil compaction blade, cause to bore
Body structure soil compaction is not very fully to influence the density of stake holes.When creeping into projected depth, the ground swelled at apex point can not squeeze
It is closely knit, so as to influence the end resistance of pile.
The content of the invention
For existing screw cone soil compaction drill bit drilling into soil body during stake holes continuously from bottom to top transmission and apex point
The shortcomings of compacted property of place's ground is bad, soil compaction effect is more preferable when being crept into the utility model proposes one kind construction, and structure is more closed
The screw cone soil compaction drill bit of reason.
The technical solution adopted in the utility model is：A kind of screw cone soil compaction drill bit, including drill bit core pipe, spiral cylinder
Soil compaction blade, screw cone soil compaction blade, apex point, cutting tooth and pin, spiral cylinder soil compaction blade are arranged on the post of drill bit core pipe
In body portion, screw cone soil compaction blade is arranged in the cone portion of drill bit core pipe, and cutting tooth is arranged on screw cone soil compaction blade
End, apex point is flexibly connected with the cone portion of drill bit core pipe, and described apex point is：Form the upper end of the taper apex point body of apex point
Outer rim symmetrically cuts out the curved portions of two depressions, and the end of cutting tooth is less than the upper surface of apex point body, and with the arc of depression
Portion is corresponding, and two spiral apex point blades, apex point body lower end are arranged with the apex point body between the curved portions of two depressions
Be connected with vertex (vertices), apex point body upper surface is provided with otic placode I, apex point body by otic placode I, sell and be arranged in drill bit core pipe cone portion
The otic placode II in portion is flexibly connected with drill bit core pipe cone portion, and is rotated around pin.
A kind of above-mentioned screw cone soil compaction drill bit, the top A of described spiral apex point blade are higher by apex point body upper surface.
A kind of above-mentioned screw cone soil compaction drill bit, described spiral cylinder soil compaction blade profile is trapezium structure, and
Edge is uniformly provided with some soil compaction breach I.
A kind of above-mentioned screw cone soil compaction drill bit, described screw cone soil compaction blade profile are trapezium structure, and
Edge is uniformly provided with some soil compaction breach II.
A kind of above-mentioned screw cone soil compaction drill bit, described spiral apex point blade profile are trapezium structure.
A kind of above-mentioned screw cone soil compaction drill bit, described spiral cylinder soil compaction blade and screw cone soil compaction blade system
It is into a single integrated structure；The outer rim of one-piece auger cylinder soil compaction blade forms cylinder, the outer rim shape of one-piece auger cone soil compaction blade
It is tapered.
The beneficial effects of the utility model are：
1st, the utility model, the curved portions of two depressions are symmetrically cut out in the upper end for the taper apex point body for forming apex point,
The end of cutting tooth is less than the upper surface of apex point body, corresponding with curved portions, meanwhile, the top of spiral apex point blade is higher by apex point
Body upper surface so that cutting tooth end and the top of spiral apex point blade with there is a difference in height on drill bit core pipe axial direction, and
Overlap.The soil body passed over by spiral apex point blade is fallen on screw cone soil compaction blade without barrier, is continued
From screw cone soil compaction blade to stake holes sidewall extrusion, the soil body for making to transmit at apex point uploads in time, soil compaction pore-forming efficiency
Height, soil compaction effect are more preferable.
2nd, the utility model, by the arc that two symmetrical spiral apex point blades and two depressions are devised on apex point
The design in portion so that for drill bit when drilling arrives projected depth, the ground of protuberance containing extruding is few at apex point, compacted more preferable.
3rd, the utility model, screw cone soil compaction blade all directly has radially to the pore-forming soil body or footpath is pressed down against making
With.During soil compaction pore-forming, spiral apex point blade top-surface camber has a small amount of soil body and from bottom to top transmitted, until uninterruptedly from
Upper end is sent on screw cone soil compaction blade, the soil body when screw cone soil compaction blade top-surface camber from bottom to top transmits, due to
Spiral centrum blade outer rim is provided with breach, destroys the continuity of soil body transmission, blade breach is to the soil body in transmitting procedure
Stake holes side wall is expressed to again, greatly reduces flowing up for the soil body, so as to reduce soil discharge quantity.
4th, the utility model, during whole drilling squeezes hole, apex point is protected all the time by apex point body and spiral apex point blade
The footpath downward extruding force enough to stake holes bottom soil body is held, so as to further ensure the density of pile bottom hole ground, is improved
The end resistance force value of foundation pile.
5th, the utility model, by changing the structure of apex point and screw cone soil compaction blade, more filled so as to reach soil compaction
Divide, the effect that effect is higher, pile bearing capacity is stronger.Fundamentally solve spiral Squeezing Soil Pile stake end and loosened soil or extruding be present not
Real phenomenon, to promote the application of spiral conical soil compaction pile to serve positive role, by practice principle, good effect is obtained
Fruit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is the structural representation of the utility model drill bit core pipe.
Fig. 4 is the structural representation of the utility model spiral cylinder soil compaction blade.
Fig. 5 is the structural representation of the utility model screw cone soil compaction blade.
Fig. 6 is the dimensional structure diagram of the utility model apex point.
Fig. 7 is the front view of the utility model apex point.
Fig. 8 is the top view of the utility model apex point.
Fig. 9 is the left view of the utility model apex point.
Figure 10 is the stereogram of the utility model apex point body.
Figure 11 is the front view of the utility model apex point body.
Figure 12 is the top view of the utility model apex point body.
Figure 13 is the left view of the utility model apex point body.
Figure 14 is the structural representation of the utility model apex point blade.
Figure 15 is that the utility model apex point body curved portions form schematic diagram.
When Figure 16 is the utility model grouting, apex point open mode figure.
Embodiment
Embodiment
As shown in Figure 1-2, a kind of screw cone soil compaction drill bit, by drill bit core pipe 1, spiral cylinder soil compaction blade 2, screw conic
Body soil compaction blade 3, apex point 4, cutting tooth 5 and pin 6 are formed.
As shown in figure 3, drill bit core pipe 1 is made up of trunk portion 1-1 and cone portion 1-2, trunk portion 1-1 and cone portion 1-2 structures
It is into a single integrated structure.Cone portion 1-2 lower end insides are provided with the 1-3 of otic placode II, and the inside of drill bit core pipe 1 is provided with concrete shaft 1-4.
Spiral cylinder soil compaction blade 2 is arranged on the trunk portion 1-1 of drill bit core pipe 1, and screw cone soil compaction blade 3 is arranged on
On the cone portion 1-2 of drill bit core pipe 1.Described spiral cylinder soil compaction blade 2 is formed integrally knot with screw cone soil compaction blade 3
Structure.
As shown in figure 4, the section of spiral cylinder soil compaction blade 2 is trapezium structure, and some soil compactions are uniformly provided with edge
The 2-1 of breach I, the outer rim of one-piece auger cylinder soil compaction blade 2 form cylinder.
As shown in figure 5, the section of screw cone soil compaction blade 3 is trapezium structure, and some soil compactions are uniformly provided with edge
The 3-1 of breach II, the outer rim of one-piece auger cone soil compaction blade 3 form taper.
Cutting tooth 5 is arranged on the end of screw cone soil compaction blade 3.
As Figure 6-9, apex point 4 is by taper apex point body 4-1, spiral apex point blade 4-3, vertex (vertices) 4-4, the 4-5 structures of otic placode I
Into.
As shown in figures 10-14, the upper end outer rim for forming the taper apex point body 4-1 of apex point 4 is arranged with the arc of two depressions
Shape portion 4-2.As shown in figure 15, it is the formation schematic diagram of curved portions.
Cutting tooth 5 is less than apex point body 4-1 upper surface 4-6, and corresponding with the curved portions 4-2 of depression, in two depressions
Curved portions 4-2 between apex point body 4-1 on be arranged with two spiral apex point blade 4-3, spiral apex point blade 4-3 top
A is higher by apex point body 4-1 upper surface 4-6 so that cutting tooth end and the top of spiral apex point blade have on drill bit core pipe axial direction
One difference in height, and overlap.The soil body for being so easy to pass over from spiral apex point blade continues along spiral centrum leaf
Piece rises and continues to stake holes sidewall extrusion, to reduce the ascending amount of the soil body by bolt centrum blade.
Apex point body 4-1 lower ends are connected with vertex (vertices) 4-4.
Apex point body 4-1 upper surfaces are provided with the 4-5 of otic placode I.
Apex point body 4-1 is flexibly connected by the 4-5 of otic placode I, pin 6 and the 1-3 of otic placode II with drill bit core pipe cone portion 1-2, and around
Pin 6 rotates.
Principle of the present utility model is：Spiral cylinder soil compaction blade 2 and the trunk portion 1-1 composition gauges in drill bit core pipe 1
Soil compaction part.Screw cone soil compaction blade 3 combines with the cone portion 1-2 in drill bit core pipe 1 and apex point 4 forms soil compaction into hole portion
Point.Spiral apex point blade 4-1 top A when apex point closes on apex point 4 have part weight with cutting tooth 5 in drill bit core pipe axial direction
Stacked condition, in radial direction into uniform situation.Screw cone soil compaction drill bit is into the critical piece of stake holes, during work, using big
Moment of torsion stake mechanomotive force head drives screw cone soil compaction bit by standard soil compaction drilling tool, and screw cone soil compaction drill bit has crowded
The native function into stake holes, while screw cone soil compaction drill bit is the passage of pump guncreting again.During creeping into stake holes,
Bottom soil compaction in drill bit into bore portion be major part.Taper apex point body and spiral apex point blade outer surface in apex point, bore
Cone portion and screw cone soil compaction blade outer surface and its breach in head core pipe, all directly have radial direction or footpath to the pore-forming soil body
It is pressed down against acting on.During soil compaction pore-forming, spiral apex point blade top-surface camber has a small amount of soil body and from bottom to top transmitted, directly
To uninterruptedly screw cone soil compaction blade top-surface camber is sent to, the soil body from bottom to top transmits in screw cone soil compaction blade top-surface camber
When, because blade outer rim is provided with breach, the continuity of soil body transmission is destroyed, blade breach is carried out to the soil body in transmitting procedure
Stake holes side wall is expressed to again, greatly reduces flowing up for the soil body, and so as to reduce soil discharge quantity, hole mistake is squeezed in whole drilling
Cheng Zhong, apex point is moderate to keep the footpath downward extruding force enough to stake holes subsoil body, so as to ensure that the closely knit of pile bottom hole ground
Property, improve the end resistance force value of foundation pile.
Claims (6)
1. a kind of screw cone soil compaction drill bit, including drill bit core pipe (1), spiral cylinder soil compaction blade (2), screw cone soil compaction leaf
Piece (3), apex point (4), cutting tooth (5) and pin (6), spiral cylinder soil compaction blade (2) are arranged on the trunk portion of drill bit core pipe (1)
On (1-1), screw cone soil compaction blade (3) is arranged in the cone portion (1-2) of drill bit core pipe (1), and cutting tooth (5) is arranged on spiral shell
The end of spiral cone soil compaction blade (3), apex point (4) are flexibly connected with the cone portion (1-2) of drill bit core pipe (1), it is characterised in that
Described apex point (4) is：The upper end outer rim for forming the taper apex point body (4-1) of apex point (4) is arranged with the arc of two depressions
Portion (4-2), the end of cutting tooth (5) are less than the upper surface of apex point body (4-1), and corresponding with the curved portions (4-2) of depression,
Two spiral apex point blades (4-3), apex point body are arranged with apex point body (4-1) between the curved portions (4-2) of two depressions
(4-1) lower end is connected with vertex (vertices) (4-4), and apex point body (4-1) upper surface (4-6) is provided with otic placode I (4-5), and apex point body (4-1) is logical
Cross otic placode I (4-5), pin (6) and be arranged on the internal otic placode II (1-3) of drill bit core pipe cone portion (1-2) and drill bit core pipe cone
Portion (1-2) is flexibly connected, and is rotated around pin (6).
A kind of 2. screw cone soil compaction drill bit according to claim 1, it is characterised in that described spiral apex point blade
The top A of (4-3) is higher by apex point body (4-1) upper surface (4-6).
A kind of 3. screw cone soil compaction drill bit according to claim 1, it is characterised in that described spiral cylinder soil compaction leaf
Piece (2) section is trapezium structure, and some soil compaction breach I (2-1) are uniformly provided with edge.
A kind of 4. screw cone soil compaction drill bit according to claim 1, it is characterised in that described screw cone soil compaction leaf
Piece (3) section is trapezium structure, and some soil compaction breach II (3-1) are uniformly provided with edge.
A kind of 5. screw cone soil compaction drill bit according to claim 1, it is characterised in that described spiral apex point blade
(4-3) section is trapezium structure.
A kind of 6. screw cone soil compaction drill bit according to claim 1, it is characterised in that described spiral cylinder soil compaction leaf
Piece (2) is formed integrally structure with screw cone soil compaction blade (3)；The outer rim of one-piece auger cylinder soil compaction blade (2) forms cylinder
Shape, the outer rim of one-piece auger cone soil compaction blade (3) form taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481944.4U CN206722766U (en) | 2017-05-03 | 2017-05-03 | A kind of screw cone soil compaction drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481944.4U CN206722766U (en) | 2017-05-03 | 2017-05-03 | A kind of screw cone soil compaction drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206722766U true CN206722766U (en) | 2017-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720481944.4U Expired - Fee Related CN206722766U (en) | 2017-05-03 | 2017-05-03 | A kind of screw cone soil compaction drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206722766U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266131A (en) * | 2018-03-13 | 2018-07-10 | 刘守进 | Rotate soil compaction bottom expanding drill and method for constructing foundation pile |
| CN109723393A (en) * | 2019-02-25 | 2019-05-07 | 刘守进 | A kind of spiral is at hole drill tool and bore forming method |
| CN112049575A (en) * | 2020-08-25 | 2020-12-08 | 湖南创一机械有限公司 | Drill bit for digging machine |
-
2017
- 2017-05-03 CN CN201720481944.4U patent/CN206722766U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266131A (en) * | 2018-03-13 | 2018-07-10 | 刘守进 | Rotate soil compaction bottom expanding drill and method for constructing foundation pile |
| CN109723393A (en) * | 2019-02-25 | 2019-05-07 | 刘守进 | A kind of spiral is at hole drill tool and bore forming method |
| CN112049575A (en) * | 2020-08-25 | 2020-12-08 | 湖南创一机械有限公司 | Drill bit for digging machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 |