CN206267795U - Spiral cylinder soil compaction drill bit - Google Patents
Spiral cylinder soil compaction drill bit Download PDFInfo
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- CN206267795U CN206267795U CN201621370573.4U CN201621370573U CN206267795U CN 206267795 U CN206267795 U CN 206267795U CN 201621370573 U CN201621370573 U CN 201621370573U CN 206267795 U CN206267795 U CN 206267795U
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- soil compaction
- core pipe
- connecting rod
- apex point
- spiral
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Abstract
The utility model is created and is related to spiral cylinder soil compaction drill bit.Including spiral soil compaction blade, interlink and core pipe, interlink and the welded structure of core pipe, coiled helical soil compaction blade on interlink and core pipe, core pipe lower end is provided with carbide button I and otic placode, the bottom port erecting and welding of core pipe baffle plate and apex point together, baffle plate is flexibly connected by apex point with the bearing pin I on otic placode, and behind the Unscrew port of bearing pin I, the ogival A of apex point is around radius φ round formed by core pipe center line for baffle plate and apex point3The radius φ of the circle formed more than spiral soil compaction blade outer rim1If, φ3And φ1Difference is δ, the δ≤80mm of 5mm≤described；Apex point is provided with carbide button II.The utility model is created using soil compaction mode twice, while stake holes soil discharge quantity is reduced into, increased the collateral resistance value of pile, so as to reach the ability that foundation pile is carried that improves.
Description
Technical field
The invention is related to building field pile driving construction basis, is specifically related to a kind of spiral cylinder soil compaction drill bit and utilization
Its bore forming method.
Background technology
In building pile foundation, spiral soil compaction pump cast-with-pressure concrete pile is high because of efficiency of construction, adapts to stratum extensively, and pile is carried
Power is high, is widely used the advantages of energy-saving and emission-reduction.Wherein screw rod pile, bidirectional helix extruding-enlarging stake and spiral conical soil compaction pile are typical cases
Represent, have application in specific implementation.Screw rod pile is a kind of non-casting Squeezing Soil Pile, and it is set using special screw rod pile driving construction
It is standby to complete, device fabrication high cost.The synchronous control technique of equipment is core, i.e., in stake scope long, drilling tool is per just
(anti-) goes around, downwards (on) a mobile pitch, it is ensured that institute's not disturbing into ground thread, the stress shape of the original ground of holding
Condition.In specific implementation, the property of stake buried depth rock stratum also influences the precision of synchronous control technique.In soft formation, drilling resistance is small,
Synchronous control accuracy is preferable；In harder or hard formation, soil compaction drilling resistance is big, it is desirable to which construction equipment has very big output torque
(being more than 500KN.m), such device fabrication expense is higher, and quality is bigger, higher to job site requirement, causes construction to aid in
Expense is higher.In reality, screw rod pile is only adapted to the construction of soft formation, it is impossible to be applied to hard formation, and this is to rock in foundation pile buried depth
Layer property has restriction, also just defines the range of application of screw rod pile.Bidirectional helix extruding-enlarging stake is using bidirectional helix extruding earth boring auger
Head squeezed hole, pump guncreting, post-set reinforcing cage pile, in cylinder pile-type.Its squeezed hole is using the side squeezed after subdrilling
Formula, it be using bidirectional helix extruding enlarging aiguille middle column body augers part by soil body rotary drill out, and by helical blade by
Cone core pipe part is transported on down, the ground that rotary drill gets off gradually clamp-ons stake holes side wall by cone core pipe, for comparing
Complicated stratum such as clay layer, folder gravel layer etc., the ground that rotary drill gets off can block the trafficking pathways that helical blade is formed, from
And produce bit bouncing phenomenon.The top of bidirectional helix extruding enlarging aiguille couples with polished rod drilling tool in construction, and the external diameter of polished rod drilling tool is far small
In the aperture that extruding-enlarging aiguille is formed, due to the difference on stratum, the stability of squeezed hole wall is sometimes very poor, it may appear that slump is existing
As producing burying.Spiral conical soil compaction pile is to use the screw cone direct squeezed hole of soil compaction drill bit, pump guncreting, after
Put steel reinforcement cage to form, formed stake is cylinder-type, the bearing capacity of stake is made up of end resistance and side frictional resistance, the size of side frictional resistance be by
Stake footpath, stake be long and ultimate frictional resistance standard value of all rock-soil layers of piles with different is determined.Same geological conditions, will obtain high-bearing capacity
Stake can only increase footpath or lengthen that stake is long to be ensured.Screw cone soil compaction drill bit only possesses directly squeezed into stake holes during drilling,
Do not possess the expanding function of reaming.
The content of the invention
In order to solve the above problems, a kind of spiral soil compaction pile quality of the invention offer is more preferable, cost is lower, effect
It is higher, more environmentally-friendly construction method and drill bit.
The invention use technical scheme be：Including spiral soil compaction blade, interlink and core pipe, interlink is welded with core pipe
Into a single integrated structure, in interlink and core pipe outer rim coiled helical soil compaction blade, core pipe lower end is provided with carbide button I and otic placode, core pipe
Bottom port erecting and welding baffle plate and apex point together, baffle plate is flexibly connected by apex point with the bearing pin I on otic placode,
After the Unscrew core pipe bottom port of bearing pin I, the ogival A of apex point is around half of circle formed by core pipe center line for baffle plate and apex point
Footpath φ3The radius φ of the circle formed more than spiral soil compaction blade outer rim1If, φ3And φ1Difference is δ, the δ of 5mm≤described≤
80mm；Apex point is provided with carbide button II.
Above-mentioned spiral cylinder soil compaction drill bit, is provided with connecting rod I, connecting rod II, pin shaft II, gusset, pin shaft III, pin in core pipe
Axle IV, pole socket I and pole socket II；Pole socket I be arranged on core pipe inwall on, pole socket II be arranged on baffle plate on, the one end of connecting rod I with install
Pin shaft III connection on pole socket I, the other end of connecting rod I is connected by pin shaft II with connecting rod II, the other end and the peace of connecting rod II
Bearing pin IV on pole socket II is connected；Gusset is arranged on connecting rod I, and connecting rod I is stretched out for spacing connecting rod II in one end.
Above-mentioned spiral cylinder soil compaction drill bit, is provided with connecting rod I, connecting rod II, pin shaft II, gusset, pin shaft III, pin in core pipe
Axle IV, pole socket I and pole socket II；Two groups of otic placodes are provided with, two groups of otic placodes are symmetrically mounted on the lower end of core pipe；By two flexible connection
Baffle plate I constitutes baffle plate, and apex point is constituted by the apex point I of two flexible connections, and each baffle plate I welds an apex point I, two baffle plates I
It is flexibly connected with the bearing pin I on the otic placode of core pipe both sides by apex point I respectively, two groups of baffle plates I and apex point I are around respective
Behind the port of the Unscrew core pipe bottom of bearing pin I, the radius φ of the circle that the ogival A ' of two groups of apex points I is constituted4More than spiral
The radius φ of the circle that soil compaction blade outer rim is formed1If, φ4And φ1Difference is δ1, described 5mm≤δ1≤80mm；Pole socket I with
Gusset is connected, and two pole sockets II are separately mounted on two baffle plates I, the one end of connecting rod I and the pin shaft III being arranged on pole socket II
Connection, the other end of connecting rod I is connected by pin shaft II with connecting rod II, the other end of connecting rod II and the bearing pin on pole socket II
IV connection；The rotation of connecting rod I and connecting rod II is spacing by gusset.
Above-mentioned spiral cylinder soil compaction drill bit, spiral soil compaction blade is provided with soil compaction breach.
Above-mentioned spiral cylinder soil compaction drill bit, the radius φ of the circle that spiral soil compaction blade outer rim is formed1, the radius of core pipe
It is φ2, 2 φ1=350~800mm, φ2=(0.58~0.75) φ1。
Spiral cylinder soil compaction drill bit of the invention according to the mode difference that apex point is opened can be divided into without connecting rod list bit drill,
Single connecting rod list bit drill and the double bit drills of double link.Its common feature be apex point around bearing pin Unscrew when, the point of apex point
Top is both greater than the certain numerical value δ of drill bit maximum radius around radius of circle formed by center line of bit；Its difference be apex point structure and
Unfolding mode is different.
Spiral cylinder soil compaction bore forming method, using above-mentioned spiral cylinder soil compaction drill bit, spiral cylinder soil compaction is bored
Head is together with spiral soil compaction BHA, and soil compaction bore forming method is as follows：
1) rig is in place, spiral cylinder soil compaction drill bit align piles position；
2) start drill power head, clockwise direction torque is applied simultaneously to spiral soil compaction drilling tool and spiral cylinder soil compaction drill bit
Unit head is discharged downwards, and spiral cylinder soil compaction drill bit starts to make soil compaction drilling, during being drilled down into, spiral soil compaction blade
While transmission ground upwards, radial direction soil compaction is carried out, form cylinder with footpath stake holes；
3) after reaching construction depth, unit head turns clockwise and lifts spiral soil compaction drilling tool and spiral cylinder soil compaction and bores
Head, while fill concrete to core pump pressure in pipe, spiral cylinder soil compaction drill bit during rising, baffle plate and apex point in deadweight and
Around the Unscrew of bearing pin I under the pressure of core pipe inner concrete, in the ogival jacked pile hole wall of apex point, with spiral cylinder soil compaction
The rotation of drill bit is simultaneously above carried, and apex point ogival is spinned ascending manner soil compaction, on inwall of the cylinder with footpath stake holes, forms spiral
Shape groove, forms the fluted stake holes of inner wall belt；From the concrete of core pipe outflow while priming concrete pile hole full of groove to setting
Meter absolute altitude.
4) produced steel reinforcement cage is sunk in stake holes with vibrator, completion is once constructed.
The beneficial effect of the invention is：
(1) technical advantage：Soil compaction pressure fills pile twice, and pile bearing capacity is high, and settling amount is small, and pile quality is high, breakout capacity
By force.
(2) cost advantage：Bearing capacity of single pile is high, and casting is few, saves concrete amount.
(3) environment-friendly advantage：Without being arranged outside mud, pile noiselessness is without friction.
(4) scope of application：Suitable for shale clay, cohesive soil, silt, sand, containing small gravel cohesive soil, loess and high wind
Change soil etc., stake footpath between 350~φ of φ 800mm, its 30m most long.
(5) the invention while stake holes soil discharge quantity is reduced into, increased the side of pile using soil compaction mode twice
Resistance Value, so as to reach the ability that foundation pile is carried that improves.
(6) the invention, during drilling, complete stake holes first time soil compaction, into stake holes be an isometrical cylinder hole, together
When there is part surflaes to be emitted on outside stake holes；During perfusion, drill bit is during turning clockwise and being lifted up, while be pumped filling
Concrete, apex point is fully opened in the presence of deadweight and drilling tool core overpressure concrete, and the ogival of apex point is to shape
Into cylinder hole wall extruded again, form the spiral grooves of certain depth and width, press the concrete for filling to be filled with immediately,
The stake for being formed is diameter-variable pile, changes post holes stake side resistance force-mechanism.Be increased on the basis of the frictional resistance of side vertical anti-shearing
Ability, so as to improve the bearing capacity and breakout capacity of stake.
Brief description of the drawings
Fig. 1 is the structural representation of the invention.
Fig. 2 is the structural representation of spiral soil compaction blade.
Fig. 3 is that the structure without connecting rod list apex point spiral cylinder soil compaction drill bit of embodiment 1 attempts.
Fig. 4 is that the drill bit of embodiment 1 opens schematic diagram.
Fig. 5 is the single connecting rod list apex point spiral cylinder soil compaction drill bit structure schematic diagram of embodiment 2.
Fig. 6 is that the drill bit of embodiment 2 opens schematic diagram.
Fig. 7 is the double apex point spiral cylinder soil compaction drill bit structure schematic diagrames of the double link of embodiment 3.
Fig. 8 is that the drill bit of embodiment 3 opens schematic diagram.
Fig. 9 is construction method schematic diagram.
Figure 10 is I portions enlarged drawing in Fig. 9.
Specific embodiment
Embodiment 1 is without connecting rod list apex point spiral cylinder soil compaction drill bit and bore forming method
(1) without connecting rod list apex point spiral cylinder soil compaction drill bit
As Figure 1-Figure 4, spiral cylinder soil compaction drill bit, including spiral soil compaction blade 1, interlink 2, core pipe 3, otic placode 4, conjunction
Golden tooth I 5, baffle plate 6, apex point 7 and bearing pin I 8.
Interlink 2 and the integrally welded structure of core pipe 3, coiled helical soil compaction blade 1 on interlink 2 and core pipe 3, spiral soil compaction leaf
Piece 1 is provided with soil compaction breach 1-1, and the radius of the circle that the outer rim of spiral soil compaction blade 1 is formed is φ1, interlink 2 and the circle of core pipe 3 are partly
Footpath is φ2。2φ1=350~800mm, wherein φ2=0.58~0.75 φ1.Pitch H=1.2~1.6 φ1。
The lower end of core pipe 3 is provided with carbide button I 5 and otic placode 4.
The bottom port erecting and welding of core pipe 3 baffle plate 6 and apex point 7 together, baffle plate 6 is by apex point and is arranged on otic placode
Bearing pin I 8 on 4 is flexibly connected.
As shown in figure 4, the structure of apex point 7 and baffle plate 6 composition around bearing pin I 8 rotate freely when, due to the effect of gravity,
The ogival A natures of apex point can just meet δ values.In practice pressure concrete perfusion, the concrete of outflow is to boring in core pipe 3
Point and baffle plate have the effect for increasing the anglec of rotation and increase δ values, keep the certain value of δ, meet soil compaction effect.Baffle plate 6 and brill
Behind the Unscrew core pipe port of bearing pin I 8, the ogival A of apex point 7 is around radius φ round formed by the center line of core pipe 3 for point 73Greatly
The radius φ of the circle formed in the outer rim of spiral soil compaction blade 11If, φ3And φ1Difference is δ, the δ≤80mm of 5mm≤described.
Apex point 7 is provided with the 7-1 of carbide button II.
(2) spiral cylinder soil compaction bore forming method
As shown in Figure 9 and Figure 10, exist above-mentioned without connecting rod list apex point spiral soil compaction drill bit and spiral soil compaction BHA
Together, soil compaction bore forming method is as follows：
1) rig is in place, spiral cylinder soil compaction drill bit align piles position；
2) start drill power head, clockwise direction torque is applied simultaneously to spiral soil compaction drilling tool and spiral cylinder soil compaction drill bit
Unit head is discharged downwards, and spiral cylinder soil compaction drill bit starts to make soil compaction drilling, during being drilled down into, spiral soil compaction blade
While transmission ground upwards, radial direction soil compaction is carried out, form cylinder with footpath stake holes；
3) after reaching construction depth, unit head turns clockwise and lifts spiral soil compaction drilling tool and spiral cylinder soil compaction and bores
Head, while filling concrete to core pump pressure in pipe, during rising, baffle plate 6 and apex point 7 are in deadweight for spiral cylinder soil compaction drill bit
And under the pressure of core pipe inner concrete in the Unscrew of bearing pin I 8, the ogival A jacked pile hole walls of apex point, with spiral cylinder
The rotation of soil compaction drill bit is simultaneously above carried, and apex point ogival is spinned ascending manner soil compaction, on inwall of the cylinder with footpath stake holes, is formed
Spiral groove, forms stake holes of the inwall with groove 14；Ditch is full of while priming concrete pile hole from the concrete of core pipe outflow
Groove is to designed elevation.
4) produced steel reinforcement cage is sunk in stake holes with vibrator, completion is once constructed.
The single connecting rod list apex point spiral cylinder soil compaction drill bit of embodiment 2 and bore forming method
As shown in Fig. 5-Fig. 6, single connecting rod list apex point spiral cylinder soil compaction drill bit, including spiral soil compaction blade 1, interlink 2, core
Pipe 3, otic placode 4, carbide button I 5, baffle plate 6, apex point 7, bearing pin I 8, the 9-1 of connecting rod I, the 9-2 of connecting rod II, pin shaft II 10, gusset 11, pin
The 12-1 of axle III, the 12-2 of bearing pin IV, the 13-1 of pole socket I and the 13-2 of pole socket II.
Interlink 2 and the integrally welded structure of core pipe 3, coiled helical soil compaction blade 1 on interlink 2 and core pipe 3, spiral soil compaction leaf
Piece 1 is provided with soil compaction breach 1-1, and the radius of the circle that the outer rim of spiral soil compaction blade 1 is formed is φ1, interlink 2 and the circle of core pipe 3 are partly
Footpath is φ2。2φ1=350~800mm, wherein φ2=0.58~0.75 φ1.Pitch H=1.2~1.6 φ1。
The lower end of core pipe 3 is provided with carbide button I 5 and otic placode 4.
The bottom port erecting and welding of core pipe 3 baffle plate 6 and apex point 7 together, baffle plate 6 is by apex point 7 and is arranged on ear
Bearing pin I 8 on plate 4 is flexibly connected, baffle plate 6 and apex point 7 after the Unscrew core pipe bottom port of bearing pin I 8, the pinnacle of apex point 7
Radius φs of the portion A around circle formed by the center line of core pipe 33The radius φ of the circle formed more than the outer rim of spiral soil compaction blade 11If,
φ3And φ1Difference is δ, described 10mm≤δ≤60mm；Apex point 7 is provided with the 7-1 of carbide button II.
In core pipe 3, the 13-1 of pole socket I is arranged on the inwall of core pipe 3, and the 13-2 of pole socket II is arranged on baffle plate 6, the 9-1 of connecting rod I
One end links with the pin shaft III 12-1 on the 13-1 of pole socket I, and the other end of the 9-1 of connecting rod I is by pin shaft II 10 and connecting rod II
9-2 is connected, and the other end of the 9-2 of connecting rod II is connected with the 12-2 of bearing pin IV on the 13-2 of pole socket II；Gusset 11 is arranged on
On the 9-1 of connecting rod I, the 9-1 of connecting rod I is stretched out for the 9-2 of spacing connecting rod II in one end.
As shown in fig. 6, in single connecting rod list bit drill, the 9-1 of connecting rod I can rotate around pin II 10 and the 12-1 of pin III, gusset
11 are fixed on the 9-1 of connecting rod I, while the rotation to another connecting rod II 9-2 has position-limiting action.Two pole sockets are separately fixed at core
On inside pipe wall and baffle plate.In practice pressure concrete perfusion, apex point recoils the Unscrew core pipe bottom port of bearing pin I 8 certainly, while
The concrete of outflow is downwardly applied to pressure and gives connecting rod I 9-1, the 9-1 of connecting rod I to moving down by the upper surface of gusset 11 in core pipe 3
It is dynamic to promote apex point to be rotated around pin I 8 by the 9-2 of connecting rod II, increase the strength of apex point opening, it is ensured that the certain value of δ, realize squeezing
Native function.
(2) spiral cylinder soil compaction bore forming method
As shown in Figure 9 and Figure 10, above-mentioned single connecting rod list apex point spiral soil compaction drill bit and spiral soil compaction BHA are existed
Together, soil compaction bore forming method is as follows：
1) rig is in place, spiral cylinder soil compaction drill bit align piles position；
2) start drill power head, clockwise direction torque is applied simultaneously to spiral soil compaction drilling tool and spiral cylinder soil compaction drill bit
Unit head is discharged downwards, and spiral cylinder soil compaction drill bit starts to make soil compaction drilling, during being drilled down into, spiral soil compaction blade
While transmission ground upwards, radial direction soil compaction is carried out, form cylinder with footpath stake holes；
3) after reaching construction depth, unit head turns clockwise and lifts spiral soil compaction drilling tool and spiral cylinder soil compaction and bores
Head, while filling concrete to core pump pressure in pipe, spiral cylinder soil compaction drill bit presses concrete perfusion during rising in practice
When, apex point is from the recoil Unscrew core pipe bottom port of bearing pin I 8, while the concrete of outflow is by gusset 11 in core pipe 3
Upper surface is downwardly applied to pressure and moves downwards through the 9-2 of connecting rod II promotion apex points around the rotation of bearing pin I 8 to the 9-1 of connecting rod I, the 9-1 of connecting rod I
Turn, increase the strength of apex point opening, it is ensured that the certain value of δ, realize soil compaction function.Baffle plate 6 and apex point 7 coagulation in core pipe
Under the pressure of soil in the Unscrew of pin I 8, the ogival A jacked pile hole walls of apex point, with the rotation of spiral cylinder soil compaction drill bit
And above carry, apex point ogival is spinned ascending manner soil compaction, on inwall of the cylinder with footpath stake holes, forms spiral groove, shape
Into stake holes of the inwall with groove 14；Groove to designed elevation is full of while priming concrete pile hole from the concrete of core pipe outflow.
4) produced steel reinforcement cage is sunk in stake holes with vibrator, completion is once constructed.
The double apex point spiral cylinder soil compaction drill bits of the double link of embodiment 3 and bore forming method
(1) the double apex point spiral cylinder soil compaction drill bits of double link
As shown in Figs. 7-8, the double apex point spiral cylinder soil compaction drill bits of double link, including spiral soil compaction blade 1, interlink 2, core
3, two groups of otic placodes 4 of pipe, carbide button I 5, by two flexible connection the 6-1 of baffle plate I constitute a complete baffle plate 6, by two work
The 7-2 of apex point I of dynamic connection constitute complete 7, two bearing pins I 8 of apex point, the 9-1 of connecting rod I, the 9-2 of connecting rod II, pin shaft II 10, plus
Power plate 11, pin shaft III 12-1, the 12-2 of bearing pin IV, the 13-1 of pole socket I and the 13-2 of pole socket II.
Interlink 2 and the integrally welded structure of core pipe 3, coiled helical soil compaction blade 1 on interlink 2 and core pipe 3, spiral soil compaction leaf
Piece 1 is provided with soil compaction breach 1-1, and the radius of the circle that the outer rim of spiral soil compaction blade 1 is formed is φ1, interlink 2 and the circle of core pipe 3 are partly
Footpath is φ2。2φ1=350~800mm, wherein φ2=0.58~0.75 φ1.Pitch H=1.2~1.6 φ1。
The lower end of core pipe 3 is provided with carbide button I 5.
Two groups of otic placodes 4 are symmetrically mounted on the lower end of core pipe 3.One bearing pin I 8 is installed on every group of otic placode 4.
Each baffle plate I 6-1 welds apex point I 7-2, two 6-1 of baffle plate I and by apex point I (7-2) and is arranged on core respectively
Bearing pin I 8 on the otic placode 4 of the both sides of pipe 3 is flexibly connected, and two groups of 6-1 of the baffle plate I and 7-2 of apex point I are around the Unscrew of respective bearing pin I 8
After core pipe bottom port, the radius φ of the circle that the ogival A ' of two groups of 7-2 of apex point I is constituted4More than the outer rim of spiral soil compaction blade 1
The radius φ of the circle for being formed1If, φ4And φ1Difference is δ1, described 5mm≤δ1≤80mm。
The 13-1 of pole socket I is connected with gusset 11, and two 13-2 of pole socket II are separately mounted on two 6-1 of baffle plate I, connecting rod I
9-1 one end links with the pin shaft III 12-1 on the 13-2 of pole socket II, and the other end of the 9-1 of connecting rod I passes through pin shaft II 10 and connects
The 9-2 of bar II is connected, and the other end of the 9-2 of connecting rod II is connected with the 12-2 of bearing pin IV on the 13-2 of pole socket II；The 9-1 of connecting rod I and
The rotation of the 9-2 of connecting rod II is spacing by boosting-rod 11.
As shown in figure 8, when guncreting is put into practice, two 7-2 of apex point I are under Gravitative Loads around the Unscrew core of pin I 8
Bottom of the tube port, while the concrete of outflow is downwardly applied to pressure to connecting rod by the gusset 11 on the 13-1 of pole socket I in core pipe 3
The I 9-1 and 9-2 of connecting rod II, and then power is transmitted to the 7-2 of apex point I, increase two anglecs of rotation of the 7-2 of apex point I, it is ensured that δ's is certain
Value, realizes double pointed soil compaction effect.
(2) spiral cylinder soil compaction bore forming method
As shown in Figure 9 and Figure 10, the double apex point spiral soil compaction drill bits of double link are squeezed together with spiral soil compaction BHA
Native bore forming method is as follows：
1) rig is in place, spiral cylinder soil compaction drill bit align piles position；
2) start drill power head, clockwise direction torque is applied simultaneously to spiral soil compaction drilling tool and spiral cylinder soil compaction drill bit
Unit head is discharged downwards, and spiral cylinder soil compaction drill bit starts to make soil compaction drilling, during being drilled down into, spiral soil compaction blade
While transmission ground upwards, radial direction soil compaction is carried out, form cylinder with footpath stake holes；
3) after reaching construction depth, unit head turns clockwise and lifts spiral soil compaction drilling tool and spiral cylinder soil compaction and bores
Head, while filling concrete to core pump pressure in pipe, during rising, two 7-2 of apex point I are in deadweight for spiral cylinder soil compaction drill bit
Around the Unscrew core pipe bottom port of bearing pin I 8 under effect, while the concrete of outflow is applied downwards by gusset 11 in core pipe 3
Power is transmitted to the 7-2 of apex point I by plus-pressure respectively to the 9-1 of the connecting rod I and 9-2 of connecting rod II, increases two anglecs of rotation of the 7-2 of apex point I
Degree, it is ensured that the certain value of δ, realizes double pointed soil compaction effect.Baffle plate and apex point are under the pressure of deadweight and core pipe inner concrete
In the Unscrew of pin I, the ogival jacked pile hole wall of apex point, with spiral cylinder soil compaction drill bit rotation and above carry, apex point
Ogival A ' spins ascending manner soil compaction, on inwall of the cylinder with footpath stake holes, forms spiral groove, forms inwall and carries
The stake holes of groove 14；Groove to designed elevation is full of while priming concrete pile hole from the concrete of core pipe outflow.
4) produced steel reinforcement cage is sunk in stake holes with vibrator, completion is once constructed.
Claims (5)
1. spiral cylinder soil compaction drill bit, including spiral soil compaction blade (1), interlink (2) and core pipe (3), interlink (2) and core pipe (3)
Integrally welded structure, in interlink (2) and core pipe (3) outer rim coiled helical soil compaction blade (1), it is characterised in that under core pipe (3)
End is provided with carbide button I (5) and otic placode (4), the bottom port erecting and welding of core pipe (3) baffle plate (6) and apex point (7) together,
Baffle plate (6) is flexibly connected by apex point with the bearing pin I (8) on otic placode (4), and baffle plate (6) and apex point (7) are around bearing pin I (8)
After Unscrew core pipe bottom port, the ogival A of apex point (7) is around radius φ round formed by core pipe (3) center line3More than spiral shell
The radius φ of the circle that rotation soil compaction blade (1) outer rim is formed1If, φ3And φ1Difference is δ, the δ≤80mm of 5mm≤described；Apex point
(7) it is provided with carbide button II (7-1).
2. spiral cylinder soil compaction drill bit according to claim 1, it is characterised in that be provided with core pipe (3) connecting rod I (9-1),
Connecting rod II (9-2), pin shaft II (10), gusset (11), pin shaft III (12-1), bearing pin IV (12-2), pole socket I (13-1) and pole socket
Ⅱ(13-2)；Pole socket I (13-1) is arranged on the inwall of core pipe (3), and pole socket II (13-2) is arranged on baffle plate (6), connecting rod I
(9-1) one end is connected with the pin shaft III (12-1) on pole socket I (13-1), and the other end of connecting rod I (9-1) passes through pin shaft II
(10) be connected with connecting rod II (9-2), the other end of connecting rod II (9-2) be arranged on pole socket II (13-2) on bearing pin IV (12-2)
Connection；On connecting rod I (9-1), connecting rod I (9-1) is stretched out for spacing connecting rod II in gusset (11) one end to gusset (11)
(9-2)。
3. spiral cylinder soil compaction drill bit according to claim 1, it is characterised in that be provided with core pipe (3) connecting rod I (9-1),
Connecting rod II (9-2), pin shaft II (10), gusset (11), pin shaft III (12-1), bearing pin IV (12-2), pole socket I (13-1) and pole socket
Ⅱ(13-2)；Two groups of otic placodes (4) are provided with, two groups of otic placodes (4) are symmetrically mounted on the lower end of core pipe (3)；By two flexible connection
Baffle plate I (6-1) constitutes baffle plate (6), and apex point (7) is constituted by the apex point I (7-2) of two flexible connections, the weldering of each baffle plate I (6-1)
An apex point I (7-2) is connect, two baffle plates I (6-1) are respectively by apex point I (7-2) and the otic placode (4) for being arranged on core pipe (3) both sides
On bearing pin I (8) be flexibly connected, two groups of baffle plates I (6-1) and apex point I (7-2) are around the Unscrew core pipe bottom of respective bearing pin I (8)
Behind portion port, the radius φ of the circle that the ogival A ' of two groups of apex points I (7-2) is constituted4More than spiral soil compaction blade (1) outer rim institute
The radius φ of the circle of formation1If, φ4And φ1Difference is δ1, described 5mm≤δ1≤80mm；Pole socket I (13-1) and gusset
(11) connect, two pole sockets II (13-2) are separately mounted on two baffle plates I (6-1), (9-1) one end of connecting rod I be arranged on bar
Pin shaft III (12-1) link on II (13-2) of seat, the other end of connecting rod I (9-1) is by pin shaft II (10) and connecting rod II (9-2)
Connection, the other end of connecting rod II (9-2) is connected with the bearing pin IV (12-2) on pole socket II (13-2)；Connecting rod I (9-1) and
The rotation of connecting rod II (9-2) is spacing by gusset (11).
4. spiral cylinder soil compaction drill bit according to claim 1, it is characterised in that spiral soil compaction blade (1) is provided with soil compaction
Breach (1-1).
5. spiral cylinder soil compaction drill bit according to claim 1, it is characterised in that spiral soil compaction blade (1) outer rim institute shape
Into circle radius φ1, the radius of core pipe (3) is φ2, 2 φ1=350~800mm, φ2=(0.58~0.75) φ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370573.4U CN206267795U (en) | 2016-12-14 | 2016-12-14 | Spiral cylinder soil compaction drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370573.4U CN206267795U (en) | 2016-12-14 | 2016-12-14 | Spiral cylinder soil compaction drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267795U true CN206267795U (en) | 2017-06-20 |
Family
ID=59045447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370573.4U Withdrawn - After Issue CN206267795U (en) | 2016-12-14 | 2016-12-14 | Spiral cylinder soil compaction drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499343A (en) * | 2016-12-14 | 2017-03-15 | 刘守进 | Spiral cylinder soil compaction drill bit and its bore forming method |
-
2016
- 2016-12-14 CN CN201621370573.4U patent/CN206267795U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499343A (en) * | 2016-12-14 | 2017-03-15 | 刘守进 | Spiral cylinder soil compaction drill bit and its bore forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170620 Effective date of abandoning: 20180724 |