CN209228300U - Link combination drill tool for more power guide positions - Google Patents
Link combination drill tool for more power guide positions Download PDFInfo
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- CN209228300U CN209228300U CN201821650748.6U CN201821650748U CN209228300U CN 209228300 U CN209228300 U CN 209228300U CN 201821650748 U CN201821650748 U CN 201821650748U CN 209228300 U CN209228300 U CN 209228300U
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Abstract
The utility model relates to technical field of civil engineering, more particularly, to a kind of more power guide positions linkage combination drill tools.The drilling tool include: sequentially coaxially be arranged lead position linkage drilling tool, middle power drilling tool and upper power drilling tool；The upper power drill and middle power drilling tool are respectively equipped with a power mechanism；The position linkage drilling tool of leading equipped with guide device, it is described lead position linkage drilling tool, middle power drilling tool and upper power drilling tool at least one of had by one squeeze, the tool body of casting complex function is constituted.When the combination drill tool is constructed, each drilling tool is converted into the mode that active drive adds linkage to assist by traditional linked manner, and soil compaction, casting are simultaneously all into and can disposably completing pore-forming and concrete pressure fills pile, high degree of automation realizes the raising of work efficiency；The variable diameter of pile body, reasonable engineering method, so that bearing capacity of single pile is further to be improved, to reduce costs；The above composite factor shortens the duration.
Description
Technical field
The utility model relates to technical field of civil engineering, more particularly, to a kind of more power guide positions linkage combination drill tools.
Background technique
In the engineerings treatment of soft foundation such as building structure or bridge, harbour, railway, highway, airport, water conservancy and hydropower facility, need
The foundation soil for carrying out disposal field soil can generally be divided into weak field according to mean shear wave velocity value changing rule from shallow to deep
Ground soil, in soft Site Soil, Moderate stiff soil sites soil, hard ground soil.It can be ground according to the soft or hard degree of Site Soil and soil depth
It is native be simply divided into soil compaction area (Soft site soil, in soft Site Soil, except wherein water content is higher or saturation cohesive soil)；Casting
Area (outside Moderate stiff soil sites soil, hard ground earth removal).
To improve the bearing capacity of foundation soil and improving the compression modulus of foundation soil, generally takes and be with pile body displacement foundation soil
Main long screw auger pressure deposited pile-CFG pile work method.In recent years again develop some novel soil compaction engineering methods, as Screw Pile (screw rod pile and
Shallow thread stake), bidirectional screw soil compaction stake (abbreviation SDS).The above soil compaction engineering method is increased by improving equipment, increasing self weight
Power mechanism kinetic energy is allowed to special drilling tool torque and becomes larger.When the above drilling tool pore-forming based on soil compaction, creeps into and soil compaction is deep to design
After degree, mentioning brill, pressure concrete injecting pile therefore is unearthed amount seldom to designed elevation simultaneously, has encrypted soil around pile compactness.
The above two engineering method bearing capacity for increasing foundation soil all different degrees of in various stratum.But it is more for complexity
The foundation soil of sample, drilling tool function used in two kinds of engineering methods is more single, in the weak soil of shallow-layer, can soil compaction area, CFG pile work method
Can only substitute simply soil, cause soil around pile side friction reduction；In the harder casting area of deep layer, Screw Pile or SDS pile work method
Further high torque is gone squeezed, is caused drilling difficult, is influenced work efficiency.Such as to closely knit sandy soil, attempt it is squeezed it, but break
Its compact structure reduces its intensity, or even dilative shear failure occurs, and side friction and end resistance reduce instead.Two kinds of engineering methods
Single-function, be unable to adaptation to local conditions Ground Treatment soil, cause certain cost waste, affect bearing capacity of single pile performance
Effect.In order to solve the above problem, according to rock-soil mechanics theory, weak soil is preferably squeezed when basement process, and pan soil is preferably arranged, and utility model is badly in need of
A kind of combination drill tool, both the above engineering method sets of advantages on a kind of drilling tool, to fill up ground circle ground treatment construction method not
Enough, a kind of extruding and removing soil combination drill tool is developed birth.
A linkage technology reference that this patent was related to lead: utility model patent: 201820159509.4, it is practical new
Type title: a kind of guide device and drilling tool.(utility model patent is in the substantive examination stage)
The extruding and removing soil combination drill tool technology reference that this patent is related to: utility model patent: 201820124401.1, it is practical
New Name: a kind of extruding and removing soil combination drill tool and CFG extruding and removing soil stake.(utility model patent is in the substantive examination stage)
The information disclosed in the background technology section is intended only to deepen the reason to the general background technology of the utility model
Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of more power guide positions linkage combination drill tools, to solve to deposit in the prior art
The automatic degree of equipment it is low, engineering method is single, and pile-type is single, bad adaptability and the not high technical problem of bearing capacity of single pile.
To achieve the goals above, the utility model uses following technical scheme:
In a first aspect, the utility model provides a kind of more power guide position linkage combination drill tools comprising: sequentially coaxially it is arranged
Lead position linkage drilling tool, middle power drilling tool and upper power drilling tool；
The upper power drill and middle power drilling tool are respectively equipped with a power mechanism, and the power mechanism can be operated alone
It corresponds to drilling tool and is rotated；Equipped with guide device, the guide device can make described to lead position the position linkage drilling tool of leading
It is realized between linkage drilling tool and the middle power drilling tool and leads position linkage, it is described to lead position linkage drilling tool, middle power drilling tool and upper power
Drilling tool at least one of had by one squeeze, the tool body of casting complex function is constituted, the core pipe of the tool body
Outer diameter gradually increases from bottom to top, and is changed according to scheduled soil compaction ratio；The soil compaction ratio is defined as straight outside core pipe
Diameter and tool body diameter ratio；The width of the helical blade of the tool body is gradually reduced from bottom to top, so that all spiral shells
The outer profile of vane piece is distributed in equal diameter.
As a kind of further technical solution, the position linkage drilling tool of leading includes: that outer sleeve drilling tool and first lead position connection
Dynamic device；
As a kind of further technical solution, described first leads a linkage including being set to the outer sleeve drilling tool
On the first linkage, the first linkage outer peripheral surface is provided with guide post, and the outer sleeve drilling tool is used with soil compaction
Based on extruding and removing soil combination drill tool main body.
As a kind of further technical solution, it is provided with casing on the outer sleeve drilling tool, passes through the slips on casing
It fixed with boring tower, keep outer sleeve drilling tool verticality；When taking casting engineering method, several castings are opened up on the outer sleeve drilling tool
Hole；It takes and is not necessarily to open up earth discharging hole on the outer sleeve drilling tool when soil compaction engineering method.
As a kind of further technical solution, the middle power drilling tool include: middle power head, intermediate sleeve drilling tool and in
Lifting device；
The middle power head is set to the upper end of the intermediate sleeve drilling tool, for driving the intermediate sleeve drilling tool to carry out
Spinning movement；The middle lifting device is set to the lower end of the middle power head, for driving the position linkage drilling tool of leading to carry out
Lifting action；A linkage of leading includes that second be set on the intermediate sleeve drilling tool leads a linkage-and lead position
Link slot, and described second, which leads a linkage-, leads the top of position linkage slot and be provided with and position guiding groove and lead a bank face；It is described to lead position
Bank face and when leading that guide post contacts in an interlocking bar, guide post can rotate into position guiding groove entrance, quilt along a bank face of leading
It is moved at the position guiding groove horn mouth on dynamic, promotes to lead an interlocking bar accurately to enter and lead in position linkage slot, complete linkage phase
Set locking work.The intermediate sleeve drilling tool uses the extruding and removing soil combination drill tool main body based on soil compaction.
As a kind of further technical solution, the middle power drilling tool further include: middle casting slot, the middle casting slot are set
It is placed in the upper end of the middle power head.
As a kind of further technical solution, the upper power drilling tool includes: upper power head, center drilling tool and upper promotion
Device；The upper power head is set to the upper end of the center drilling tool, for driving the center drilling tool to carry out spinning movement；Institute
The lower end that lifting device is set to the upper power head is stated, for driving the middle power drilling tool to carry out lifting action；It is described
Center drilling tool uses the casting drilling tool with casting function, and the numberical range of the soil compaction ratio of the casting drilling tool less than 0.6 and is
Certain value；/ center the drilling tool uses based on soil compaction, and supplemented by casting, casting is also the extruding and removing soil combination drill tool of soil compaction service
Main body.
As a kind of further technical solution, the upper power drilling tool further include: position limit device；The upper limit dress
Install the lower end for being placed in the upper power head.
As a kind of further technical solution, further includes: pressurizing device, the pressurizing device are set to the upper power
Any one among drilling tool and the middle power drilling tool.
The utility model also provides a kind of type stake according to more power guide position linkage combination drill tool preparations comprising:
Main body pile body；At least two back taper stepped ramp type bodies are provided on the main body pile body；The inverted cone disk of the back taper stepped ramp type body
The included angle range of inclined-plane extended line and the main body pile body central axis are as follows: 5 °~90 °.
The utility model provide again it is a kind of according to the more power guide positions linkage combination drill tools in the method for preparative stake,
Include: the demand according to stratum to engineering method, the upper power drilling tool, middle power drilling tool and lead position linkage drilling tool be successively drilled into successively
Respective projected depth, so as to form multiple back taper stepped ramp type drillings；Start concrete pump, start pressure concrete injecting, in pressure concrete injecting according to
Power drilling tool, middle power drilling tool and position linkage drilling tool is led in secondary promotion, Synchronous lifting after each drilling tool bottom end is successively concordant, until
Aperture absolute altitude is mentioned, while concrete also presses and fills pile to designed elevation, realizes that disposable completion pore-forming and concrete pressure fill pile.
By adopting the above technical scheme, the utility model has the following beneficial effects:
The utility model provides a kind of more power guide positions linkage combination drill tool, the drilling tool include lead position linkage drilling tool, in
Power drilling tool and upper power drilling tool, the middle power drilling tool and upper power drilling tool of the drilling tool are respectively equipped with a power mechanism, this is led
For position linkage drilling tool equipped with guide device, guide device, which can make to lead, realizes that leading position joins between position linkage drilling tool and middle power drilling tool
It is dynamic.It is constructed by the combination drill tool, adds linkage auxiliary so that each drilling tool is converted into active drive by traditional linked manner
The mode helped, and pore-forming and concrete pressure filling pile can be disposably completed, high degree of automation realizes the raising of work efficiency, and single pile is held
The raising for carrying power, reduces costs simultaneously, shortens the duration；It is adaptable, it is conducive to promote and applies.
The utility model provides a kind of type stake prepared according to more Power compound drilling tools, and bearing capacity not only includes tradition
The pile side friction and stake end bottom bearing of pile body, and the back taper disk inclined-plane of back taper stepped ramp type body, can be vertical vertical part
Downward power is decomposed into the tangential force and normal force of the conical surface, and soil around pile forms passive compression chord state and squeezed state, increases
Pile perimeter resistance, improves the bearing capacity of single pile, can reduce settling amount.This superficial part inversed taper platform part bearing capacity is available too husky
The shallow water oil field formula of base (Terzaghi) calculates.The utility model is to solve traditional drilling tool single-function and making simultaneously
At adverse effect and propose, and it is an object of the present invention to provide a kind of for the squeezing of compound foundation pile or pile foundation stake, casting composite drill
Tool.It is nested combination construction by combination drill tool superposition, soil compaction, casting are simultaneously all into and can disposably completing pore-forming and concrete pressure
Pile is filled, realizes the raising of work efficiency, bearing capacity of single pile further improves, and reduces costs simultaneously, shortens the duration.
The utility model provides a kind of preparation method, and this method is by the way that extruding and removing soil complex superposition to be nested drilling tool and power
Mechanism, guide device combine, the demand according to stratum to engineering method, upper power drilling tool, middle power drilling tool and lead position linkage drilling tool
It is drilled into respective projected depth, successively successively so as to form multiple back taper stepped ramp type drillings；Start concrete pump, start pressure concrete injecting,
Upper power drilling tool, middle power drilling tool and lower power drilling tool, each power drilling tool bottom end is successively promoted successively in pressure concrete injecting successively to put down
Synchronous lifting after neat, until mention aperture absolute altitude, while concrete also press and fills pile to designed elevation, realize it is disposable complete pore-forming with
Concrete pressure fills pile, to form the type stake with above structure and function.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is more power guide position linkage combination drill tool original state structural schematic diagrams provided by the embodiment of the utility model；
Fig. 2 is that more power guide position linkage combination drill tools provided by the embodiment of the utility model creep into status architecture schematic diagram；
Fig. 3, Fig. 4 are the structural schematic diagram of upper power drilling tool provided by the embodiment of the utility model；
Fig. 5 is the positive structure schematic of upper power head provided by the embodiment of the utility model；
Fig. 6 is the structural schematic diagram of middle power drilling tool provided by the embodiment of the utility model；
Fig. 7 is the positive structure schematic of middle power head provided by the embodiment of the utility model；
Fig. 8 is the structural schematic diagram of middle casting slot provided by the embodiment of the utility model；
Fig. 9 is the structural schematic diagram provided by the embodiment of the utility model for leading position linkage drilling tool；
Figure 10 is the original state schematic diagram of Dao Wei mechanism provided by the embodiment of the utility model；
Figure 11 is the working state schematic representation of Dao Wei mechanism provided by the embodiment of the utility model；
Figure 12 is working state schematic representation of the drilling machine drilling tool provided by the embodiment of the utility model to positive stake position；
Figure 13 is the work of the synchronous drilling of power drilling tool in power drilling tool assistance on drilling machine provided by the embodiment of the utility model
Make status diagram；
Figure 14 is power drilling tool in drilling machine provided by the embodiment of the utility model and leads position linkage drilling tool by leading position linkage
Device realization, which is nested, locks working state schematic representation；
Figure 15 is that power drilling tool, middle power drilling tool drive in power drilling tool assistance on drilling machine provided by the embodiment of the utility model
The dynamic working state schematic representation for leading the synchronous drilling of position linkage drilling tool to default stake depth；
Figure 16 is power drilling tool and to lead position in drilling machine provided by the embodiment of the utility model and link the synchronous drilling of drilling tool to each
Upper power drilling tool continues to creep into the working state schematic representation of default stake depth from after default stake depth；
Figure 17 is that concrete provided by the embodiment of the utility model pumps pressure concrete injecting, at the same promoted upper power drilling tool to middle power drill
Has the concordant working state schematic representation in bottom end；
Figure 18 be concrete provided by the embodiment of the utility model pump pressure concrete injecting, simultaneously, on Synchronous lifting, middle power drilling tool to
Lead the concordant working state schematic representation in position linkage drilling tool bottom end；
Figure 19 is that concrete provided by the embodiment of the utility model pumps pressure concrete injecting, simultaneously, on Synchronous lifting, middle power drilling tool and lead
Position linkage drilling tool to stake holes mouth absolute altitude working state schematic representation；
Figure 20 is working state schematic representation of the drilling machine drilling tool that provides of another embodiment of the utility model to positive stake position；
Power drilling tool prepares the working condition signal of drilling on the drilling machine that Figure 21 provides for another embodiment of the utility model
Figure；
Figure 22 is the working state schematic representation for the upper power drilling tool drilling that another embodiment of the utility model provides；
Figure 23 is the working condition signal for the synchronous drilling of upper, middle power drilling tool that another embodiment of the utility model provides
Figure；
Figure 24 is the middle power drilling tool that another embodiment of the utility model provides and leads position linkage drilling tool by leading position linkage
Device realization, which is nested, locks working state schematic representation；
Figure 25 is upper, the middle power drilling tool that another embodiment of the utility model provides and leads the synchronous drilling of position linkage drilling tool extremely
The respectively working state schematic representation of default stake depth；
Figure 26 is that the concrete that another embodiment of the utility model provides pumps pressure concrete injecting, while promoting upper power drilling tool and moving to in
The concordant working state schematic representation in power drilling tool bottom end；
Figure 27 is that the concrete that provides of another embodiment of the utility model pumps pressure concrete injecting, simultaneously, on Synchronous lifting, middle power drilling tool
To the working state schematic representation concordant with position linkage drilling tool bottom end is led；
Figure 28 is that the concrete that provides of another embodiment of the utility model pumps pressure concrete injecting, simultaneously, on Synchronous lifting, middle power drilling tool
And lead the working state schematic representation of position linkage drilling tool to stake holes mouth absolute altitude；
Figure 29 is that two back taper stepped ramp type bodies up and down of the non-threaded diameter-variable pile of pile body provided by the embodiment of the utility model are equal
For inverted round stage pile-type schematic diagram.
Figure 30 is that the only next back taper stepped ramp type body of the non-threaded diameter-variable pile of pile body provided by the embodiment of the utility model can be
Circle platform pile-type schematic diagram.
Figure 31 is two back taper stepped ramp type bodies up and down of pile body partial threads diameter-variable pile provided by the embodiment of the utility model
It is inverted round stage pile-type schematic diagram.
Figure 32 is that the only next back taper stepped ramp type body of pile body partial threads diameter-variable pile provided by the embodiment of the utility model can
For circle platform pile-type schematic diagram.
Icon: the upper power drilling tool of 1-；Power drilling tool in 2-；3- leads position linkage drilling tool；4- type stake；5- concrete pump；It is moved on 11-
Power head；The center 12- drilling tool；The upper lifting device of 13-；14- position limit device；Power head in 21-；22- intermediate sleeve drilling tool；23-
Middle lifting device；25- pressurizing device；Casting slot in 26-；27- leads position linkage slot；32- outer sleeve drilling tool；37- leads position linkage
Bar；38- casing；41- main body pile body；42- back taper stepped ramp type body.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Embodiment one
The present embodiment provides a kind of more Power compound drilling tools comprising: be sequentially coaxially nested lead position linkage drilling tool, in move
Power drilling tool and upper power drilling tool；The middle power drilling tool and upper power drilling tool are respectively equipped with a power mechanism, the engine
Structure can be operated alone its correspondence drilling tool and be rotated；The position linkage drilling tool of leading is equipped with guide device, the guide device
Described lead can be made to realize that leading position links between position linkage drilling tool and the middle power drilling tool；It is described lead position linkage drilling tool, in move
Power drilling tool and upper power drilling tool are taken suitable according to the soft or hard degree of Site Soil and distribution situation in design pile body depth when construction
The drilling tool of engineering method, matching correspondence is combined.
Site Soil is Moderate stiff soil sites soil (or the overwhelming majority is Moderate stiff soil sites soil) in pile body depth, and way-type drilling unit is equal
For casting drilling tool；
In pile body depth Site Soil be it is weak, in soft Site Soil (or the overwhelming majority for it is weak, in soft Site Soil), group
Bench drill tool is the extruding and removing soil Zuan Ju (or center drilling tool is soil compaction drilling tool) based on soil compaction；
In pile body depth Site Soil top be it is weak, in soft Site Soil, lower part is Moderate stiff soil sites soil, in way-type drilling unit
Between, lower sleeve drilling tool be extruding and removing soil drilling tool based on soil compaction, center drilling tool is casting drilling tool.
Wherein, the drilling tool of soil compaction is using simultaneous techniques, and soil compaction ratio is certain value, group not less than 0.6 and less than 1.0
Bench drill tool each other screw pitch must be it is equidistant, spiral shell diameter compares suitable soil compaction, the tooth shape thread of the suitable soil compaction of helical blade use.
(shallow thread stake and SDS are related to that drilling tool is complex, and drilling takes soil compaction form to creep into, and engineering method also belongs to soil compaction, but " soil compaction
Than " concept cannot the entirely appropriate drilling tool, therefore the art of this patent is not related to its structure type.)
Wherein, the drilling tool of casting, soil compaction ratio are certain value, and screw pitch by being suitble to the spiral shell diameter of casting than regulation, adopt by helical blade
With the blade of common form.
Wherein, the extruding and removing soil drilling tool based on soil compaction, soil compaction ratio is not less than 0.6 and no more than based on 1.0 soil compaction sections
It leads, and soil compaction ratio is from bottom to top, ascending gradually gradual to 1.0, by being suitble to the spiral shell diameter of soil compaction than regulation, screw pitch can wait screw pitch
Away from preferably from bottom to top, descending gradually gradual.Helical blade can use the detiform blade of non-notch, blade it is outer
Edge thickness is less than inward flange thickness, is inclined-plane from the two sides that outer edge is transitioned into inward flange, and soil more has during revolving row
Conducive to soil compaction.
Wherein, the extruding and removing soil drilling tool based on casting, soil compaction than be with the casting section less than 0.6 it is leading, screw pitch is by being suitble to
For casting spiral shell diameter than control, screw pitch is preferably isometrical, and helical blade uses the blade of common form.
Based on above-mentioned theory and it is convenient those skilled in the art understand that angle set out, the present embodiment illustrates emphatically wherein
A kind of preferred embodiment, certainly, according to any combination of engineering method deformation belong to the protection scope of the utility model.
In conjunction with shown in Fig. 1 to Figure 10, the present embodiment provides a kind of more power guide positions linkage combination drill tools comprising: successively
What is be coaxially arranged leads position linkage drilling tool 3, middle power drilling tool 2 and upper power drilling tool 1 (ecto-entad, which is sequentially overlapped, to be nested)；On described
Power drill and middle power drilling tool 2 are respectively equipped with a power mechanism, the power mechanism can be operated alone its correspond to drilling tool into
Row rotation；The position linkage drilling tool 3 of leading equipped with guide device, the guide device can make it is described lead position linkage drilling tool 3 with
It is realized between the middle power drilling tool 2 and leads position linkage, it is seen then that each drilling tool is converted into active drive by passively linked manner and adds
The mode for the auxiliary that links, high degree of automation is adaptable, is conducive to promote and application.It is described to lead position linkage drilling tool 3, middle power
Drilling tool 2 and upper power drilling tool 1 at least one of had by one squeeze, the tool body of casting complex function is constituted, the drilling tool
The outer diameter of the core pipe of main body gradually increases from bottom to top, and is changed according to scheduled soil compaction ratio；The soil compaction ratio is determined
Justice is core pipe overall diameter and tool body diameter ratio；The width of the helical blade of the tool body gradually subtracts from bottom to top
It is small, so that the outer profile of all helical blades is in equal diameter distribution (helical blade outer profile size its be tool body diameter).
It is worth noting that those skilled in the art can root for the design of the tool body helical blade
Flexible setting is carried out according to actual needs.Wherein, it shall be understood in a broad sense herein.Such as: when outer sleeve drilling tool 32, intermediate sleeve drilling tool
22 have squeeze, casting complex function when, the helical blade of corresponding tool body the lowermost frustum structure is then not necessarily to meet foreign steamer
Exterior feature in equal diameter distribution rule because this frustum structure can approximation serve as " drill bit " effect use, those setting
It is not necessarily to be arranged according to outer profile in the requirement of equal diameter distribution in the helical blade on " drill bit ".Certainly, more than frustum structure
Position can satisfy the rule that helical blade outer profile is in equal diameter distribution.
As a kind of further technical solution, the position linkage drilling tool 3 of leading includes: that outer sleeve drilling tool 32 and first lead position
Linkage-leads an interlocking bar 37；Described first, which leads a linkage-, leads 37 outer peripheral surface of an interlocking bar and is provided with guide post institute
It states the first linkage outer peripheral surface and is provided with guide post, the outer sleeve drilling tool 32 uses the extruding and removing soil composite drill based on soil compaction
Has main body.
It is provided with casing 38 on the outer sleeve drilling tool 32, fixed by the slips on casing 38 with boring tower, keep housing
Cylinder 32 verticality of drilling tool；When taking casting engineering method, several earth discharging holes are opened up on the outer sleeve drilling tool；Take soil compaction engineering method when institute
It states on outer sleeve drilling tool without opening up earth discharging hole.
For outer sleeve drilling tool 32, third helical blade, the third helical-blade are provided on outer sleeve drilling tool 32
Piece is axially set on the outer wall of the outer sleeve drilling tool 32 along the outer sleeve drilling tool 32.
As a kind of further technical solution, it is preferred that the middle power drilling tool 2 includes: middle power head 21, intermediate sleeve
Cylinder drilling tool 22 and middle lifting device 23；The middle power head 21 is set to the upper end of the intermediate sleeve drilling tool 22, for driving
The intermediate sleeve drilling tool 22 carries out spinning movement；The middle lifting device 23 is set to the lower end of the middle power head 21, uses
Position linkage drilling tool 3 is led described in the drive carries out lifting action；The guide device includes being set to the intermediate sleeve drilling tool 22
On second lead a linkage-lead position linkage slot 27, described second lead a linkage-lead position linkage slot 27 top set
It is equipped with position guiding groove and leads a bank face；Described when leading a bank face and leading that guide post contacts in an interlocking bar 37, guide post can be along institute
State and lead a bank face and rotate into position guiding groove entrance, it is passive on move at the position guiding groove horn mouth, promote to lead an interlocking bar 37 quasi-
Really enter and lead in position linkage slot 27, completion linkage, which is nested, locks work.
The intermediate sleeve drilling tool 22 uses the extruding and removing soil combination drill tool main body based on soil compaction.
In the present embodiment, as a kind of further technical solution, the position guiding groove leads the axis of position linkage slot 27 described in
To being opened on the outer wall for leading position linkage slot 27, the position guiding groove has the bottom in expansion shape, such as: bell mouth shape,
When linkage works, protection guide post avoids collision damage, and guide post and position guiding groove, which reduce, when linkage disengages rubs.
In the present embodiment, as a kind of further technical solution, a top edge in bank face of leading is with inclined arc
The ramp of shape, for being contacted with the guide post.
In the present embodiment, as a kind of further technical solution, the quantity of the position guiding groove is two, is led described in two
Position slot is respectively arranged at the described the point of bisection position for leading position linkage slot circumferential direction.
It, can be there are many mode for middle lifting device 23.
Such as: lifting device 23 includes: hoist engine in this, which is set to the lower end of the middle power head 21, should
The traction rope of hoist engine is connected with position linkage drilling tool 3 (preferably casing 38) is led.
Another example is: lifting device 23 includes: telescoping cylinder (oil cylinder) in this, telescoping cylinder is set under the middle power head 21
End, the telescopic rod of the telescoping cylinder are connected with position linkage drilling tool 3 (preferably casing 38) is led.
For intermediate sleeve drilling tool 22, which is provided with the second helical blade, second spiral shell
Vane piece is axially set on the outer wall of the first sleeve drilling tool along the first sleeve drilling tool.
As a kind of further technical solution, the middle power drilling tool 2 further include: middle casting slot 26, the middle casting
Slot 26 is set to the upper end of the middle power head 21.For middle casting slot 26, in this casting slot 26 include a casting case with
And it is set to casting case side and what is be inclined to set lead soil box.The bottom of the casting case can by the shell of middle power head 21 with
Intermediate sleeve drilling tool 22 is connected, i.e., center drilling tool 12 part rotation casting through 22 inside of intermediate sleeve drilling tool, middle power head 21,
Middle casting slot 26 exports.For middle power head 21, in this shell of power head 21 can be hollow cylindrical, inside have
The casting space communicated with middle casting slot 26.
It is formed it is worth noting that middle power drilling tool 2 can be nested according to design requirement by multiple superpositions.Middle power drilling tool 2
When being nested by multiple superpositions, except in addition to leading the position middle power drilling tool 2 that is in contact of linkage drilling tool 3 and being equipped with and lead position linkage slot, in other
Power drilling tool, which is not set, leads position linkage slot, in addition adds middle limiting device；In structure in addition to sleeve drilling tool diameter and length are different,
Other are all the same.
It further illustrates, on more power guide position linkage combination drill tool overall constructions, the position linkage of leading sequentially coaxially being arranged is bored
Tool 3, middle power drilling tool 2 and upper power drilling tool 1, middle power drilling tool 2 and upper dynamic can also be set to coaxial sleeve by leading position linkage drilling tool 3
Between power drilling tool 1, also can normal use, but consider manufacture, assembling, operation etc. factors, preferably overall construction from top to bottom are as follows:
It is sequentially coaxially arranged power drilling tool 1, middle power drilling tool 2 and leads position linkage drilling tool 3.
As a kind of further technical solution, the upper power drilling tool 1 includes: upper power head 11,12 and of center drilling tool
Upper lifting device 13；The upper power head 11 is set to the upper end of the center drilling tool 12, for driving the center drilling tool 12
Carry out spinning movement；The upper lifting device 13 is set to the lower end of the upper power head 11, for driving the middle power drill
Tool 2 carries out lifting action.The center drilling tool 12 is using the casting drilling tool with casting function, the soil compaction ratio of the casting drilling tool
Numberical range less than 0.6 and person be certain value；/ center the drilling tool uses based on soil compaction, and supplemented by casting, casting is also crowded
The extruding and removing soil combination drill tool main body of soil service.
As a kind of further technical solution, the upper power drilling tool 1 further include: position limit device 14；The upper limit
Position device 14 is set to the lower end of the upper power head 11.
For upper power head 11, structure, form and its power head 21 are substantially similar outer, and it is (mixed in addition to add slip casting
Solidifying soil) union elbow (bend pipe one end is communicated with center drilling tool core pipe, and the other end connects with concrete conveyance high-pressure hose), is moved
Power top head is additionally provided with suspension centre, is connect with drilling machine master winch by wirerope, no casting slot setting.
It, can be there are many mode for upper lifting device 13.
Such as: lifting device 13 includes: hoist engine on this, which is set to the lower end of the upper power head 11, should
The traction rope of hoist engine is connected with middle power drilling tool 2 (power head 21 in preferably).
Another example is: lifting device 13 includes: telescoping cylinder (oil cylinder) on this, telescoping cylinder is set under the upper power head 11
End, the telescopic rod of the telescoping cylinder are connected with middle power drilling tool 2 (power head 21 in preferably).
It, can be there are many mode for position limit device 14.Such as: the position limit device 14 can be rigid connection
Bar, the length of the rigid connecting rod is according to practical flexible setting.It may be telescopic connection rod, length is any according to requiring
It adjusts.
In addition, the present embodiment further include: pressurizing device 25, the pressurizing device 25 are set to 1 He of upper power drilling tool
Any one among the middle power drilling tool 2.
Certainly, for pressurizing device 25, can be self-possessed according to power device, geological conditions and design requirement are flexibly set
It sets, it is preferred that the pressurizing device 25 can be hoist engine, and hoist engine is set on drilling machine platform, and the traction rope of hoist engine is logical
Cross times among a directive wheel and the upper power drilling tool 1 (upper power head 11) and the middle power drilling tool 2 (middle power head 21)
One of anticipating connection.Pressurizing device 25 or hydraulic cylinder, cylinder tube are fixedly installed on boring tower suitable position, oil cylinder piston
Bar top with it is any one among the upper power drilling tool 1 (upper power head 11) and the middle power drilling tool 2 (middle power head 21)
Person's connection.
Embodiment two
In conjunction with shown in Figure 12 to Figure 28, the present embodiment two provides a kind of according to more power guide positions linkage combination drill tools again
In the method for preparative stake 4 comprising: the demand according to stratum to engineering method and is led at the upper power drilling tool 1, middle power drilling tool 2
Position linkage drilling tool 3 is successively drilled into respective projected depth successively；Start concrete pump 5, starts pressure concrete injecting, successively mentioned successively in pressure concrete injecting
It goes up power drilling tool 1, middle power drilling tool 2 and leads position linkage drilling tool 3, the Synchronous lifting after each power drilling tool bottom end is successively concordant
Aperture absolute altitude out, while concrete also presses and fills pile to designed elevation.
In the treatments of soft foundation such as building structure or railway, highway, need to carry out the foundation soil of disposal field soil from shallow to deep
According to mean shear wave velocity value changing rule can generally be divided into Soft site soil (soil layer average clearance method≤140m/s), in
Soft Site Soil (140m/s < soil layer average clearance method≤250m/s), native (the 250m/s < soil layer average shear wave of Moderate stiff soil sites
Speed≤500m/s), hard ground it is native (500m/s < soil layer shear wave velocity).
Soft, hard degree and each clay distribution situation according to Site Soil in pile body depth bounds, in conjunction with the soft ground for squeezing, arranging firmly
Engineering method theory, preferably more power guide position linkage combination drill tool combining forms are divided into two kinds: 1, and link combination drill tool for more power guide positions
Extruding and removing soil drilling tool+casting drilling tool of the combination based on squeezing；2, more power guide position linkage combination drill tool combinations are based on squeezing
Extruding and removing soil drilling tool.
It is detailed according to soft in pile body depth bounds, the native distribution situation of hard court and the more power guide position linkage combination drill tools of matching
It is described as follows:
1, extruding and removing soil drilling tool+casting drilling tool of more power guide position linkage combination drill tool combinations based on squeezing, this more power
It leads position linkage combination drill tool and combines and be suitble to stratum: pile body depth bounds Site Soil, based on Moderate stiff soil sites soil, pile body top is soft
It is weak, in soft Site Soil account for seldom or fraction；Pile body depth bounds Site Soil, pile body top be it is weak, in soft Site Soil, stake
Body lower part is Moderate stiff soil sites soil, and soft, each accounting example of hard court soil matrix sheet is half-and-half.
Pile body depth bounds Site Soil: it is weak, in soft Site Soil, engineering method uses soil compaction；Moderate stiff soil sites soil, engineering method use with
Casting.
Center drilling tool be casting drilling tool, soil compaction ratio less than 0.6, and be certain value, spiral shell diameter compare suitable casting, screw pitch for etc.
Away from.Its length be greater than processing it is weak, in soft place soil thickness, occurrence finally determines according to design requirement and strata condition.
Intermediate sleeve drilling tool and outer sleeve drilling tool use the extruding and removing soil drilling tool based on soil compaction, and soil compaction ratio is to be not less than 0.6
And no more than 1.0 soil compaction sections be leading, and soil compaction ratio is from bottom to top, ascending gradually gradual to 1.0, extruding and removing soil segment length or
Soil compaction ratio variation degree, depending on to handle it is weak, in depending on soft place soil compactness and drilling machine power mechanism output torque size,
Drilling tool soil compaction is than being light bar segment for 1.0.For spiral shell diameter than suitable soil compaction, screw pitch can be equidistant, preferably from bottom to top, it is descending gradually
It is gradual.
Intermediate sleeve drilling tool length is weak no more than (or being slightly larger than) processing, in soft place soil thickness, occurrence is according to setting
Meter requires and strata condition finally determines；Outer sleeve drilling tool is less than intermediate sleeve drilling tool length, occurrence according to design requirement and
Strata condition finally determines.
Center drilling tool is casting drilling tool；
Intermediate sleeve drilling tool and outer sleeve drilling tool are the extruding and removing soil drilling tool based on soil compaction；
Soil compaction area are as follows: Soft site soil, in soft Site Soil；
Casting area are as follows: Moderate stiff soil sites soil.
When pore-forming, the extruding and removing soil drilling tool based on squeezing respectively screws drilling and forming hole in advance in soil compaction area different designs depth,
In stake holes soil during revolving row with extruding and removing soil drilling tool helical blade from large to small, core drilling rod overall diameter is by thin thicker process
In, by uniformly and it is again targetedly appropriate squeeze, squeezed consumption is in enhancing, stake holes wall side friction in stake holes wall.Extruding and removing soil
Drilling tool soil compaction area respectively in the form of soil compaction drilling to projected depth (intermediate sleeve drilling tool bottom end or slightly penetrate soil compaction area several),
Stopping drilling, (for extruding and removing soil drilling tool when soil compaction area pore-forming is crept into, casting drill bit stretches out extruding and removing soil drilling tool drilling tool bottom end, drilling
When for reversion, prevent soil drained into outside aperture by casting drilling tool rotary, only play for extruding and removing soil drilling tool positioning, break ground and creep into function.),
Then it is rotated forward by casting drilling tool, continues to creep into casting area, revolved casting to orifice profile into stake holes, design is reached in casting area
Then depth stops to bore, on one side the pressure concrete injecting into core pipe, successively promotes each power drilling tool, each power drilling tool bottom successively on one side
Successively concordant rear Synchronous lifting is held, until mentioning aperture absolute altitude, while concrete also presses and fills pile to designed elevation.
This kind of process flow pressurizing device pressure point is set on middle power head.
Be main extruding and removing soil combination drill tool+casting drill assembly after pile is perfused in pore-forming with soil compaction, it is weak in stake holes, in it is soft
Site Soil is extruded, squeezed consumption is in soil compaction area stake holes wall；Moderate stiff soil sites soil is by casting drilling tool rotary delivery port in stake holes
Outside.
2, more power guide position linkage combination drill tool combinations are the extruding and removing soil drilling tool based on squeezing, this more power guide position connection
Dynamic combination drill tool, which combines, is suitble to distribution of strata: pile body depth bounds Site Soil, with it is weak, in based on soft Site Soil, pile body lower part
Moderate stiff soil sites soil accounts for seldom or fraction；
Pile body depth bounds Site Soil: it is weak, in soft Site Soil, engineering method uses soil compaction；Moderate stiff soil sites soil, engineering method is using row
Soil.The matching of more Power compound drilling tools be soil compaction section drilling tool be it is leading, casting section drilling tool cooperates, and casting is also the original of soil compaction service
Then.
Center drilling tool, intermediate sleeve drilling tool and outer sleeve drilling tool are soil compaction drilling tool, use the extruding and removing soil based on soil compaction
Drilling tool, soil compaction ratio is to be leading not less than 0.6 and no more than 1.0 soil compaction sections, and soil compaction ratio is from bottom to top, ascending gradually to delay
Fade to 1.0, extruding and removing soil segment length or soil compaction ratio variation degree, depending on to handle it is weak, in soft place soil compactness and drilling machine it is dynamic
Depending on force mechanisms output torque size, drilling tool soil compaction is than being light bar segment for 1.0.Spiral shell diameter is than suitable soil compaction, and screw pitch can be isometrical, preferably
It is descending gradually gradual for from bottom to top.
Center drilling tool length be greater than processing it is weak, in soft place soil thickness, occurrence is according to design requirement and strata condition
It is final to determine；The length of center drilling tool casting section be into Moderate stiff soil sites soil depth, soil compaction than preferably select from bottom to top, by it is small to
Big gradual change, length are determined by design requirement and strata condition.Intermediate sleeve drilling tool length be less than processing it is weak, in soft Site Soil
Thickness, occurrence are finally determined according to design requirement and strata condition；Outer sleeve drilling tool is less than intermediate sleeve drilling tool length, specifically
Value is finally determined according to design requirement and strata condition.
Center drilling tool, intermediate sleeve drilling tool and outer sleeve drilling tool are the extruding and removing soil drilling tool based on soil compaction；
Soil compaction area are as follows: Soft site soil, in soft Site Soil；
Casting area are as follows: Moderate stiff soil sites soil.
Brill mode under drilling tool drilling in center is first taken slowly when pore-forming, drilling tool screw drilling in soil compaction area in advance, and drill bit is not
Into before Moderate stiff soil sites soil, drilling tool rotary squeezes Yu Tuzhong, and drilling tool periphery soil is extruded, is squeezed, if in drilling tool light bar segment access aperture
After dry, aperture is sealed, aperture is unable to casting, adjusts revolving speed at this time, and drill bit breaks ground drilling, the rotation casting of center drilling tool casting section,
Center drilling tool soil compaction section carries out rotation casting to revolve and squeeze simultaneously.After drill bit enters casting area, center drilling tool casting section is stake holes
Middle Moderate stiff soil sites soil is revolved toward stake holes top to be arranged, with helical blade from large to small to nothing during revolving row, core drill pipe diameter by
It is thin it is thicker during, rotation casting by uniformly and it is again targetedly appropriate squeeze, squeezed consumption is in soil compaction area stake holes wall, make stake holes
The enhancing of wall side friction.When power center (PC) drilling tool when casting area reaches projected depth, other power drilling tools are simultaneously also in soil compaction area
All in the form of soil compaction then drilling stops to bore, on one side the pressure concrete injecting into core pipe to respective different designs depth, on one side successively successively
Promote each power drilling tool, Synchronous lifting after each power drilling tool bottom end is successively concordant, until mentioning aperture absolute altitude, while concrete is also pressed
Pile is filled to designed elevation.
Extruding and removing soil drill assembly based on squeezing after pile is perfused in pore-forming, it is weak in stake holes, in soft Site Soil be squeezed
Pressure, squeezed consumption are in soil compaction area hole wall；Stake holes middle and lower part Moderate stiff soil sites soil drains into top soil compaction by center drilling tool casting Duan Xuan
Area gradually squeezed by center drilling tool soil compaction section, squeezed consumption is in enhancing, stake holes wall side friction in stake holes wall.
For diameter-variable pile:
Such as: it is Moderate stiff soil sites soil (or the overwhelming majority is Moderate stiff soil sites soil) for stratum in the processing long range of stake, adopts
With casting engineering method, casting pore-forming is successively crept by center drilling tool 12-intermediate sleeve, 22-outer sleeve of drilling tool drilling tool 32 respectively.Into
One step, this kind of 25 pressure point of process flow pressurizing device is set on power head 11 most preferably.
Such as: for stratum in the processing long range of stake be it is weak, in soft Site Soil (or the overwhelming majority for it is weak, in it is soft
Site Soil), using soil compaction engineering method, by center drilling tool 12-intermediate sleeve, 22-outer sleeve of drilling tool drilling tool 32, successively drilling is squeezed respectively
Native pore-forming.Further, this kind of 25 pressure point of process flow pressurizing device is set on power head 11 most preferably.Stake top first
Casting mode (mainly seeing intermediate sleeve drilling tool 22 to the compacted degree of stake holes wall soil) also can be used in variable diameter pile body pore-forming engineering method.
Such as: handling stratum top in the long range of stake is soft Site Soil in weakness-, and lower part is Moderate stiff soil sites soil, using crowded
Engineering method is had both in casting, and by intermediate sleeve drilling tool 22, (drilling tool 12 drill bit in center stretches out 22 bottom end of intermediate sleeve drilling tool at this time, when drilling
For reversion, prevent spin-ended casting, only play for intermediate sleeve drilling tool 22 positioning, break ground and creep into function)-outer sleeve drilling tool 32 according to
It is secondary respectively it is weak-in soft Site Soil drilling soil compaction pore-forming (22 bottom end of intermediate sleeve drilling tool or slightly penetrate soil compaction area), then by
Center drilling tool 12 rotates forward, and continues to creep into casting, reaches projected depth in Moderate stiff soil sites soil.Further, the first variable diameter of stake top
Casting mode (mainly seeing intermediate sleeve drilling tool 22 to the compacted degree of stake holes wall soil) also can be used in pile body pore-forming engineering method.This kind of technique
25 pressure point of process pressurizing device is set on middle power head 21.
For screw thread diameter-variable pile:
Such as: in the processing long range of stake stratum be it is weak, in soft Site Soil (or the overwhelming majority it is weak, in soft place
Soil), using partial threads soil compaction engineering method, by center drilling tool 12 using simultaneous techniques drilling soil compaction at screw thread stake holes；Intermediate sleeve
The extruding and removing soil drilling tool drilling and forming hole based on soil compaction is successively respectively adopted in 22-outer sleeve of drilling tool drilling tool 32.Intermediate sleeve drilling tool
22-outer sleeve drilling tools 32 it is weak, in soft Site Soil drilling reach projected depth after stop boring, (intermediate sleeve drilling tool 22, housing
For cylinder drilling tool 32 when soil compaction area pore-forming is crept into, drilling tool 12 drill bit in center stretches out 22 bottom end of intermediate sleeve drilling tool, is reversion when drilling,
It prevents soil from being drained into outside aperture by the rotation of center drilling tool 12, only plays as intermediate sleeve drilling tool 22, the positioning of outer sleeve drilling tool 32, breaks ground
Creep into function), it is then rotated forward by center drilling tool 12, using simultaneous techniques drilling soil compaction at screw thread stake holes.Further, this kind of work
25 pressure point of skill process pressurizing device is set on middle power head 21.Further, the first variable diameter of stake top pile body pore-forming engineering method is also
Casting mode (mainly seeing intermediate sleeve drilling tool 22 to the compacted degree of hole wall soil) can be used.
Embodiment three
In conjunction with shown in Figure 29 to Figure 32, the present embodiment also provides a kind of type stake according to more Power compound drilling tool preparations
4 comprising: main body pile body 41；At least two back taper stepped ramp type bodies 42 are provided on the main body pile body 41；The back taper step
The included angle range of place inclined-plane extended line and 41 central axis of main body pile body at the variable diameter of type body 42 are as follows: 5 °~
90°.Such as: at the variable diameter of the back taper stepped ramp type body 42 at pile body superficial part, the variable diameter of the back taper stepped ramp type body 42
The included angle value range of place inclined-plane extended line and 41 central axis of main body pile body is preferably 30 °~45 °.Another example is: institute
It states and is located at pile body deep at the variable diameter of back taper stepped ramp type body 42, the place inclined-plane at the variable diameter of the back taper stepped ramp type body 42 prolongs
The included angle range of long line and 41 central axis of main body pile body is 5 °~90 °, (such as: 30 °, 45 °, 60 °, 75 °).
In addition, for main body pile body 41, it can also be there are many form.
For example, non-threaded type diameter-variable pile: there are two back taper stepped ramp type body 42, the back tapers for setting on the main body pile body 41
5 °~90 ° of angle of place inclined-plane extended line and 41 central axis of main body pile body at the variable diameter of stepped ramp type body 42.
In another example screw-type diameter-variable pile: there are two back taper stepped ramp type bodies 42 for setting on the main body pile body 41, from top to bottom
It is divided into the first pile body, the second pile body and third pile body, wherein third pile body has helicitic texture.The back taper stepped ramp type body 42
5 °~90 ° of angle of place inclined-plane extended line and 41 central axis of main body pile body at variable diameter.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (7)
- The combination drill tool 1. a kind of more power guide positions are linked characterized by comprising be sequentially coaxially arranged lead position linkage drilling tool, Middle power drilling tool and upper power drilling tool；The upper power drill and middle power drilling tool are respectively equipped with a power mechanism, and it is right that its can be operated alone in the power mechanism Drilling tool is answered to be rotated；For the position linkage drilling tool of leading equipped with guide device, the guide device can make the position of leading link It is realized between drilling tool and the middle power drilling tool and leads position linkage, it is described to lead position linkage drilling tool, middle power drilling tool and upper power drilling tool At least one of had by one squeeze, the tool body of casting complex function is constituted, the outer diameter of the core pipe of the tool body It gradually increases, and is changed according to scheduled soil compaction ratio from bottom to top；The soil compaction ratio be defined as core pipe overall diameter with Tool body diameter ratio；The width of the helical blade of the tool body is gradually reduced from bottom to top, so that all helical-blades The outer profile of piece is distributed in equal diameter.
- 2. link combination drill tool for more power guide positions according to claim 1, which is characterized in that described to lead position linkage drilling tool packet Include: outer sleeve drilling tool and first leads a linkage-and leads an interlocking bar；Described first, which leads a linkage-, leads an interlocking bar outer peripheral surface and is provided with guide post, and the outer sleeve drilling tool is used to squeeze Extruding and removing soil combination drill tool main body based on soil；It is provided with casing on the outer sleeve drilling tool, fixed by the slips on casing with boring tower, keep outer sleeve drilling tool vertical Degree；When taking casting engineering method, several earth discharging holes are opened up on the outer sleeve drilling tool；Outer sleeve drilling tool when taking soil compaction engineering method It is upper to be not necessarily to open up earth discharging hole.
- 3. link combination drill tool for more power guide positions according to claim 1, which is characterized in that the middle power drilling tool packet It includes: middle power head, intermediate sleeve drilling tool and middle lifting device；The middle power head is set to the upper end of the intermediate sleeve drilling tool, for driving the intermediate sleeve drilling tool to be rotated Movement；The middle lifting device is set to the lower end of the middle power head, for driving the position linkage drilling tool of leading to be gone up and down Movement；It is described lead a linkage include second be set on the intermediate sleeve drilling tool lead a linkage-lead position linkage Slot, described second, which leads a linkage-, leads the top of position linkage slot and is provided with and position guiding groove and leads a bank face；It is described to lead a bank face With when leading that guide post contacts in an interlocking bar, guide post can rotate into position guiding groove entrance along a bank face of leading, it is passive on It moves at the position guiding groove horn mouth, promotes to lead an interlocking bar and accurately enter and lead in position linkage slot, complete linkage phase lock set Fixed work, the intermediate sleeve drilling tool use the extruding and removing soil combination drill tool main body based on soil compaction.
- 4. link combination drill tool for more power guide positions according to claim 3, which is characterized in that the middle power drilling tool also wraps Include: middle casting slot, the middle casting slot are set to the upper end of the middle power head.
- 5. link combination drill tool for more power guide positions according to claim 1, which is characterized in that the upper power drilling tool packet It includes: upper power head, center drilling tool and upper lifting device；The upper power head is set to the upper end of the center drilling tool, for driving It moves the center drilling tool and carries out spinning movement；The upper lifting device is set to the lower end of the upper power head, for driving It states middle power drilling tool and carries out lifting action；The center drilling tool uses the casting drilling tool with casting function, the casting drilling tool Soil compaction ratio numberical range less than 0.6 and be certain value；/ center the drilling tool uses based on soil compaction, supplemented by casting, casting It also is the extruding and removing soil combination drill tool main body of soil compaction service.
- 6. link combination drill tool for more power guide positions according to claim 5, which is characterized in that the upper power drilling tool also wraps It includes: position limit device；The position limit device is set to the lower end of the upper power head.
- 7. link combination drill tool for more power guide positions according to claim 1 to 6, which is characterized in that further include: Pressurizing device, the pressurizing device are set to any one among the upper power drilling tool and the middle power drilling tool.
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| CN201821650748.6U CN209228300U (en) | 2018-10-11 | 2018-10-11 | Link combination drill tool for more power guide positions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025809A (en) * | 2018-10-11 | 2018-12-18 | 李广信 | More power guide position linkage combination drill tools, preparation method and pile-type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025809A (en) * | 2018-10-11 | 2018-12-18 | 李广信 | More power guide position linkage combination drill tools, preparation method and pile-type |
| CN109025809B (en) * | 2018-10-11 | 2024-02-06 | 李广信 | Multi-power guide linkage composite drilling tool, preparation method and pile type |
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