CN206753494U - The back taper stepped ramp type stake of CFG reducings and drilling tool - Google Patents
The back taper stepped ramp type stake of CFG reducings and drilling tool Download PDFInfo
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- CN206753494U CN206753494U CN201720537731.9U CN201720537731U CN206753494U CN 206753494 U CN206753494 U CN 206753494U CN 201720537731 U CN201720537731 U CN 201720537731U CN 206753494 U CN206753494 U CN 206753494U
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- ramp type
- stepped ramp
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- 238000005553 drilling Methods 0.000 title claims abstract description 135
- 230000001603 reducing effect Effects 0.000 title claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 34
- 210000000988 bone and bone Anatomy 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
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- 230000008859 change Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 20
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
Technical field of buildings is the utility model is related to, more particularly, to a kind of CFG reducings back taper stepped ramp type stake and drilling tool.The drilling tool includes：Outer sleeve drilling tool, intermediate sleeve drilling tool and the center drilling tool being sequentially coaxially arranged, the linkage set on each drilling tool can be engaged with auxiliary equipment hoist engine, so as to form multiple back taper stepped ramp type drillings, lifting drilling tool successively, pressure concrete injecting is achieved a kind of CFG reducings back taper stepped ramp type stake simultaneously.The CFG reducing back taper stepped ramp type pile bearing capacitys not only have the pile side friction and stake end bottom bearing of traditional pile body, and the back taper disk inclined-plane of back taper stepped ramp type body, the vertical power vertically downwards in part can be decomposed into the tangential force and normal force of the conical surface, soil around pile forms passive compression chord state and squeezed state, pile peripheral friction force increases, the comprehensive bearing capacity for improving single pile, reduces settling amount.
Description
Technical field
Technical field of buildings is the utility model is related to, more particularly, to a kind of CFG reducings back taper stepped ramp type stake and drilling tool.
Background technology
In the tide of reform and opening-up, construction industry has a rapid development, and design of the architectural engineering to ground, construction requirement are got over
Come higher, concrete stake and reinforced concrete pile are used widely in the engineerings such as skyscraper, bridge, harbour, in order that concrete stake and steel
Muscle concrete stake meets bending resistance, anti-shearing, improves the design requirement such as bearing capacity and shockproof requirements, the shape of concrete stake and reinforced concrete pile is entered
Row changes.Design requirement can not only be met, save material dosage, moreover it is possible to improve construction quality and shorten construction speed.
The traditional pile-type built with existing equipment, its vertical and horizontal section are typically not long with stake and change circular or square
Stake, its bearing capacity are mainly made up of the frictional resistance of stake side and the bottom bearing at stake end.
Utility model content
The purpose of this utility model is to provide a kind of CFG reducings back taper stepped ramp type stake and drilling tool, to solve existing set
Single, the not high technical problem of bearing capacity for the traditional pile-type structure type built.
In order to solve the above technical problems, in a first aspect, the utility model provides a kind of drilling tool, it includes：Sequentially coaxially cover
If outer sleeve drilling tool, intermediate sleeve drilling tool and center drilling tool；
The center drilling tool is provided with the first linkage in lower end；
The intermediate sleeve drilling tool includes the drive socket and earth-retaining sleeve being sequentially coaxially arranged, and the earth-retaining sleeve is upper
End is provided with the fluid pressure drive device for driving drive socket lifting moving, and the earth-retaining sleeve is provided with second in lower end
Dynamic device, the drive socket are provided with the 3rd linkage in upper end, and the lower end of the drive socket is provided with umbrella branch
Drawing out soil equipment；
The outer sleeve drilling tool is disposed with four-axle linkage device, casing and the 6th linkage, the shield in upper end
The 5th linkage is provided with cylinder.
Further, the center drilling tool includes：Hollow drill, retractable drill bit and the first helical blade；Described
One helical blade includes the king bolt blade and minor spiral blade set gradually from top to bottom along the axial direction of the hollow drill, institute
The lower end that drill bit is connected to the hollow drill is stated, first linkage is arranged on the drill bit, the hollow drill
Upper end be provided with first flange disk.
Further, the fluid pressure drive device includes：Hydraulic rotating device and hollow hydraulic jack, the hydraulic rotating
Device is fixed on the upper end of the earth-retaining sleeve by sliding support, and is connected by oil pipe with the hollow hydraulic jack, institute
Hollow hydraulic jack is stated to be located at below the hydraulic rotating device, and the output end of the hollow hydraulic jack and the transmission
The upper end connection of sleeve, the 3rd linkage are located at the upper end of the drive socket, and in the 3rd linkage
Upper end is provided with second flange disk.
Further, the umbrella branch drawing out soil equipment includes：Band tooth bearing diagonal, umbrella cover and umbrella cover bone, the band tooth are oblique
Support is hinged on the upper end of the umbrella cover bone, and the lower end of the umbrella cover bone is described by connecting shaft and the earth-retaining sleeve connection
Umbrella cover encloses the periphery for being located at the umbrella cover bone, and the upper end with tooth bearing diagonal is connected with the drive socket；The umbrella cover bone
It can open or collapse under being driven in the drive socket lifting action, and it is spacing to be provided with the drive socket lifting
Hole, the spacing key block coordinated for the lifting spacing hole is provided with the earth-retaining sleeve.
Further, the outer sleeve drilling tool includes：Outer sleeve and the second helical blade, second helical blade is along institute
Being axially set on the outer wall of the outer sleeve for outer sleeve is stated, and second helical-blade diametrically successively decreases successively from top to bottom
Change；The outer sleeve is disposed with four-axle linkage device, casing and the 6th linkage in upper end, is set on the casing
The 5th linkage is equipped with, the 6th linkage is located above second helical blade.
Further, first linkage includes key block, and the key block is arranged at the brill of the center drilling tool lower end
On head；Second linkage includes keyway, and the keyway is arranged at the lower end of the earth-retaining sleeve, the keyway and key block
It can cooperate to be locked；
3rd linkage includes the first cubic cylinder, and the first cubic cylinder is coaxially arranged with section as circle
The first sets of holes, first sets of holes are used to be fixed on the upper end of the drive socket；The four-axle linkage device includes cylinder
Body, it is the second square sets of holes that the cylinder, which is coaxially arranged with section, and second sets of holes are used to be inserted in the 3rd linkage
Device；
5th linkage includes the 3rd cubic cylinder, and it is square that the 3rd cubic cylinder, which is coaxially disposed section,
3rd sets of holes, the 3rd sets of holes are used to be inserted in the 6th linkage；6th linkage includes the 4th tetragonal prism
Body, the 4th cubic cylinder are coaxially disposed section as the 4th circular sets of holes, and the 4th sets of holes are used to be fixed on the outer sleeve
Upper end.
In order to solve the above technical problems, second aspect, the utility model also provides a kind of CFG prepared according to the drilling tool
Reducing back taper stepped ramp type stake, it includes main body pile body, and at least two back taper stepped ramp type bodies are provided with the main body pile body.
Further, the cross section of the back taper stepped ramp type body is circle, and vertical section is inverted ladder type.
Further, the angle of the inverted cone disk inclined-plane extended line of the back taper stepped ramp type body and main body pile body central axis
Angular range is preferably：30 °~45 °.
Using above-mentioned technical proposal, the utility model has the advantages that：
The utility model provides a kind of drilling tool, umbrella branch drawing out soil equipment and each linkage of the drilling tool by setting
Device can be engaged with auxiliary equipment hoist engine, so as to form multiple back taper stepped ramp type drillings, lift drilling tool simultaneously successively
Pressure concrete injecting is achieved a kind of CFG reducings back taper stepped ramp type stake.
The utility model provides a kind of CFG reducings back taper stepped ramp type stake, and its bearing capacity not only has the stake side of traditional pile body
Frictional resistance and stake end bottom bearing, and the back taper disk inclined-plane of back taper stepped ramp type body, can be the vertical power vertically downwards in part point
The tangential force and normal force for the conical surface are solved, soil around pile forms passive compression chord state and squeezed state, and pile peripheral friction force increases,
The comprehensive bearing capacity for improving single pile, reduces settling amount.Structural change function, the bearing capacity Ke Yong Tai Shaji of this
(Terzaghi) bearing capacity formulas calculates.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the utility model drilling tool is in original state；
Fig. 2 is the structural representation that the utility model drilling tool is in lifting state；
Fig. 3 is the structural representation of the utility model center drilling tool；
Fig. 4 is structural representation of the utility model intermediate sleeve drilling tool when umbrella branch drawing out soil equipment is opened；
Fig. 5 is structural representation of the utility model intermediate sleeve drilling tool when umbrella branch drawing out soil equipment collapses；
Fig. 6 is the structural representation of the linkage of the utility model the 3rd；
Fig. 7 is the structural representation of the utility model umbrella branch drawing out soil equipment；
Fig. 8 is the structural representation of the utility model outer sleeve drilling tool；
Fig. 9 is the structural representation of the utility model four-axle linkage device；
Figure 10 is the structural representation of the linkage of the utility model the 5th；
Figure 11 is the structural representation of the linkage of the utility model the 6th；
Figure 12 is the first structural representation of the utility model CFG reducing back taper stepped ramp type stakes；
Figure 13 is second of structural representation of the utility model CFG reducing back taper stepped ramp type stakes；
Figure 14 to Figure 21 is the construction procedure schematic diagram of the utility model drilling tool.
In figure, 1 is hoist engine, and 2 be steel wire rope, and drilling tool centered on 3,31 be first flange disk, and 32 be hollow drill, and 33 are
King bolt blade, 34 be minor spiral blade, and 35 be the first linkage, and 36 be drill bit, and 4 be intermediate sleeve drilling tool, and 41 be hydraulic pressure
Rotating device, 42 be sliding support, and 43 be hollow hydraulic jack, and 44 be bolt, and 45 be the 3rd linkage, and 451 be the second method
Blue disk, 46 be drive socket, and 47 be spacing key block, and 48 be earth-retaining sleeve, and 49 be umbrella branch drawing out soil equipment, and 491 be that band tooth is oblique
Support, 492 be umbrella cover, and 493 be umbrella cover bone, and 494 be connecting shaft, and 410 be soil inlet hole, and 411 be lifting key block, and 412 be soil inlet hole,
413 be the second linkage, and 5 be outer sleeve drilling tool, and 51 be four-axle linkage device, and 52 be the 5th linkage, and 53 be the 6th
Dynamic device, 54 be the second helical blade, and 55 be outer sleeve, and 56 be casing, and 71 be main body pile body, and 72 be back taper stepped ramp type body；8 are
Concrete pump.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Embodiment one
With reference to shown in Fig. 1 to Fig. 2, the present embodiment provides a kind of drilling tool, and it includes：The outer sleeve drilling tool being sequentially coaxially arranged
5th, intermediate sleeve drilling tool 4 and center drilling tool 3；The center drilling tool 3 is provided with the first linkage 35 in lower end；The intermediate sleeve
Cylinder drilling tool 4 includes the drive socket 46 and earth-retaining sleeve 48 being sequentially coaxially arranged, and the earth-retaining sleeve 48 is provided with use in upper end
In the fluid pressure drive device of the driving lifting moving of drive socket 46, the earth-retaining sleeve 48 is provided with the second linkage in lower end
413, the drive socket 46 is provided with the 3rd linkage 45 in upper end, and the lower end of the drive socket 46 is provided with umbrella branch
Disk drawing out soil equipment 49；The outer sleeve drilling tool 5 is disposed with four-axle linkage device 51, the linkage dress of casing 56 and the 6th in upper end
53 are put, the 5th linkage 52 is provided with the casing 56.The drilling tool by the umbrella branch drawing out soil equipment 49 of setting and
Each linkage can be engaged with auxiliary equipment hoist engine 1 and (specifically how coordinate referring to embodiment three), so as to be formed
Multiple back taper stepped ramp type drillings, lifting drilling tool successively, pressure concrete injecting is achieved a kind of CFG reducings back taper stepped ramp type stake simultaneously.
With reference to shown in Fig. 3, in the present embodiment, the center drilling tool 3 includes：Hollow drill 32, the retractable and of drill bit 36
First helical blade；First helical blade includes the big spiral shell set gradually from top to bottom along the axial direction of the hollow drill 32
Vane piece 33 (blade diameter is larger) and minor spiral blade 34 (blade diameter is smaller), it is, of course, understood that king bolt leaf
The blade diameter of piece 33 is more than the blade diameter of minor spiral blade 34；The drill bit 36 is connected under the hollow drill 32
End, first linkage 35 are arranged on the drill bit 36, and the upper end of the hollow drill 32 is provided with first flange disk
31, king bolt blade 33 enters the depth of intermediate sleeve drilling tool 4 on the control centre's drilling tool 3 of first flange disk 31, plays certain
Position-limiting action.
With reference to shown in Fig. 4 to Fig. 7, in the present embodiment, the fluid pressure drive device includes：Hydraulic rotating device 41 and hollow
Hydraulic jack 43, the hydraulic rotating device 41 by sliding support 42 (sliding support 42 is responsible for intermediate sleeve drilling tool 4 and lifted,
Fixed hydraulic rotating device 41 and oil pipe) upper end of the earth-retaining sleeve 48 is fixed on, and pass through oil pipe and the hollow hydraulic pressure
Oil cylinder 43 is connected, and oil pump is arranged on drilling machine platform, and hydraulic liquid is conveyed into hollow hydraulic jack 43 by oil pipe.It is described
Hollow hydraulic jack 43 is located at below the hydraulic rotating device 41, and the output end of the hollow hydraulic jack 43 with it is described
(upper end of drive socket 46 is provided with bolt 44, is responsible for hollow hydraulic jack 43 and drive socket 46 for the upper end connection of drive socket 46
Connection, the hollow power of hydraulic jack 43 is conveyed to umbrella branch drawing out soil equipment 49 by drive socket 46), the described 3rd
Dynamic device 45 is located at the upper end of the drive socket 46, and the upper end of the 3rd linkage 45 is provided with second flange disk
451。
Accordingly, the umbrella branch drawing out soil equipment 49 includes：Band tooth bearing diagonal 491, umbrella cover 492 and umbrella cover bone 493, institute
The upper end that the umbrella cover bone 493 is hinged on tooth bearing diagonal 491 is stated, the lower end of the umbrella cover bone 493 passes through connecting shaft 494 and institute
State earth-retaining sleeve 48 to connect, the umbrella cover 492 encloses the periphery for being located at the umbrella cover bone 493, the upper end with tooth bearing diagonal 491
It is connected with the drive socket 46；The umbrella cover bone 493 can be opened under being driven in 46 lifting action of drive socket or
Collapse, and lifting spacing hole is provided with the drive socket 46, be provided with the earth-retaining sleeve 48 for the lifting
The spacing key block 47 that spacing hole coordinates, i.e. spacing key block 47 is movable in lift span, its function：Control branch angular dimension；Make
Drive socket 46, the synchronous rotary of earth-retaining sleeve 48.In addition, the bottom of earth-retaining sleeve 48 is provided with lifting key block 411, during its function is
Between sleeve drilling tool 4 when lifting pressure concrete injecting, the Synchronous lifting of linkage outer sleeve drilling tool 5, complete pressure concrete injecting to designed elevation.
Certainly, position is set in umbrella branch drawing out soil equipment 49, drive socket 46 and earth-retaining sleeve 48 at absolute altitude the same as setting
There are multiple soil inlet holes 410, the spoir that the rotation of umbrella branch drawing out soil equipment 49 is expanded is entered in earth-retaining sleeve 48 by soil inlet hole 410.
In addition, setting soil inlet hole 412 and scraper in the lower end of earth-retaining sleeve 48, the spoir that scraper rotation is scraped is entered by soil inlet hole
In earth-retaining sleeve 48, soil inlet hole inner top side is provided with breast boards, prevents spoir from falling after rise.
With reference to shown in Fig. 8 to Figure 11, the outer sleeve drilling tool 5 includes：The helical blade 54 of outer sleeve 55 and second, described
Two helical blades 54 are axially set on the outer wall of the outer sleeve 55 along the outer sleeve 55, and second helical-blade is certainly
The change diametrically successively decreased successively under above；The outer sleeve 55 is disposed with four-axle linkage device 51, casing 56 in upper end
With the 6th linkage 53, the 5th linkage 52 is provided with the casing 56, the 6th linkage 53 is positioned at described
Above second helical blade 54.The function of casing 56：Stable drilling tool perpendicularity；When linkage locks mutually, elevator is transmitted
Machine 1 promotes power, lifting outer sleeve drilling tool 5 and intermediate sleeve drilling tool 4.
Further, first linkage 35 includes key block, and the key block is arranged at the lower end of center drilling tool 3
On drill bit 36；Second linkage 413 includes keyway, and the keyway is arranged at the lower end of the earth-retaining sleeve 48, described
Keyway can be cooperated with key block to be locked；
3rd linkage 45 includes the first cubic cylinder, and the first cubic cylinder is coaxially arranged with section as circle
First sets of holes of shape, first sets of holes are used for the upper end for being fixed on the drive socket 46；The four-axle linkage device 51 wraps
Include cylinder, it is the second square sets of holes that the cylinder, which is coaxially arranged with section, and second sets of holes are used to being inserted in described the
Three linkages 45；In addition second flange disk 451, the diameter chi of second flange disk 451 are provided with the top of the 3rd linkage 45
The very little square column type cross section diagonal of four-axle linkage device 51 more than outer sleeve drilling tool 5, its function：Linkage is promoted to interlock
In place；Delivery Center drilling tool 3 erects downward pressure to outer sleeve drilling tool 5.
5th linkage 52 includes the 3rd cubic cylinder, and it is square that the 3rd cubic cylinder, which is coaxially disposed section,
The 3rd sets of holes, the 3rd sets of holes be used for be inserted in the 6th linkage 53；6th linkage 53 includes the 4th
Cubic cylinder, the 4th cubic cylinder are coaxially disposed section as the 4th circular sets of holes, and the 4th sets of holes are described for being fixed on
The upper end of outer sleeve 55.When the 5th linkage 52 and the 6th linkage 53 interlock, limitation outer sleeve drilling tool 5 and intermediate sleeve
Cylinder drilling tool 4 rotates, and allows the king bolt blade 33 of center drilling tool 3 to enter intermediate sleeve drilling tool 4, spoir in earth-retaining sleeve 48 is screwed out
Outside sleeve.
To sum up, the present embodiment provides a kind of drilling tool, and the drilling tool passes through the umbrella branch drawing out soil equipment 49 of setting and each
Linkage can be engaged with auxiliary equipment hoist engine 1, so as to form multiple back taper stepped ramp type drillings, lift drilling tool successively
Pressure concrete injecting is achieved a kind of CFG reducings back taper stepped ramp type stake simultaneously.
Embodiment two
With reference to shown in Figure 12 to Figure 13, the present embodiment also provides CFG prepared by a kind of drilling tool according to embodiment one and become
Footpath back taper stepped ramp type stake, it includes main body pile body 71, and at least two back taper stepped ramp type bodies 72 are provided with the main body pile body 71.
Preferably, each section of cross section on main body pile body 71 constantly changes from top to bottom.Illustrate：On main body pile body 71 from top to bottom
Three back taper stepped ramp type bodies 72 are provided with, are divided into two kinds of forms：The first, in the upper end of second back taper stepped ramp type body 72 and master
Connected between body pile body 71 for inclined-plane；Second, be horizontal plane between second back taper stepped ramp type body 72 and main body pile body 71
Connection.It is, of course, also possible to there are other forms, no longer repeat one by one herein.
Further, the cross section of the back taper stepped ramp type body 72 is circle, and vertical section is inverted ladder type.Back taper stepped ramp type body
72 inverted cone disk inclined-plane, the vertical power vertically downwards in part can be decomposed into the tangential force and normal force of the conical surface.
Wherein, the angle angle of the side of main body pile body 71 and horizontal plane is slightly less than or equal to 90 °.
Preferably, the angle of the inverted cone disk inclined-plane extended line of the back taper stepped ramp type body 72 and main body pile body central axis
Angular range is preferably：30 °~45 °.Preferably, the main body pile body 71 can be inserted with steel reinforcement cage according in design requirement pile body.
To sum up, the CFG reducing back taper stepped ramp type stakes of the present embodiment, its bearing capacity not only have the pile side friction of traditional pile body
And stake end bottom bearing, and the back taper disk inclined-plane of back taper stepped ramp type body 72, the vertical power vertically downwards in part can be decomposed into
The tangential force and normal force of the conical surface, soil around pile form passive compression chord state and squeezed state, and pile peripheral friction force increase is comprehensive
The bearing capacity of single pile is improved, reduces settling amount.
Embodiment three
With reference to shown in Figure 14 to Figure 21, the present embodiment also provides a kind of drilling tool according to described in embodiment one to prepare CFG
The method of reducing back taper stepped ramp type stake, it comprises the following steps：
By power set (such as：Power motor etc.) the clockwise/counterclockwise rotation of driving center drilling tool 3, while downwards
It is mobile；
When at center, the first linkage 35 of drilling tool 3 enters the second linkage 413 of intermediate sleeve drilling tool 4, drive
The synchronous axial system of intermediate sleeve drilling tool 4 moves down simultaneously；
The upper end of intermediate sleeve drilling tool 4 the 3rd linkage 45 close to outer sleeve drilling tool 5 four-axle linkage device 51 when,
Casing 56 is lifted by steel wire rope 2 by auxiliary equipment hoist engine 1, casing 56 drives lifting outer sleeve drilling tool 5 so that outer sleeve bores
The four-axle linkage device 51 of tool 5 is locked on the 3rd linkage 45 of intermediate sleeve drilling tool 4, and now each linkage is mutual
Locking；
Driving each drilling tool by power set, clockwise/counterclockwise rotates simultaneously, and moves down；
When intermediate sleeve drilling tool 4, outer sleeve drilling tool 5 are drilled into respective projected depth, stop operating；Made by power set
Center drilling tool 3 rotates backward (the first linkage 35 and the second linkage 413 depart from), and utilizes auxiliary equipment elevator
Machine 1 lifts outer sleeve drilling tool 5 and intermediate sleeve drilling tool 4, and (the first linkage 35 and the second linkage 413 are vertically complete
Separate), allow the first linkage 35 of center drilling tool 3 to completely disengage the second linkage 413 of intermediate sleeve drilling tool 4；Afterwards
Auxiliary equipment hoist engine 1 transfers casing 56 and the 5th linkage 52 is locked with the 6th linkage 53, to limit outer sleeve
Rotation between drilling tool 5 and intermediate sleeve drilling tool 4, the king bolt blade 33 of center drilling tool 3 is allowed to enter intermediate sleeve drilling tool 4,
Spoir is screwed out outside sleeve in earth-retaining sleeve 48；Center drilling tool 3 after being departed from by power set driving continues clockwise/counterclockwise
Rotate and move down drilling to completion；After the drilling to completion of center drilling tool 3, stop operating, lift center drilling tool 3 and make
Its lower end drill bit 36 opens that (rig master winch lifts center drilling tool 3, and the lower end drill bit 36 of hollow drill 32 opens, and exposes discharging
Mouthful), concrete pump 8 starts, and starts pressure concrete injecting, drilling tool is carried in pressure concrete injecting；
When the first linkage 35 of center drilling tool 3 encounters the second linkage 413 of intermediate sleeve drilling tool 4, upwards
Lifting make it that the four-axle linkage device 51 of the 3rd linkage 45 and outer sleeve drilling tool 5 of intermediate sleeve drilling tool 4 is completely disengaged, so
Stop lifting drilling tool and pressure concrete injecting afterwards；Center drilling tool 3 is set to drive the clockwise/counterclockwise of intermediate sleeve drilling tool 4 by power set
Rotate and slowly move up, while umbrella branch drawing out soil equipment 49 is progressively opened by fluid pressure drive device, drive socket 46,
Fetched earth with revolve expansion and act and spoir is delivered in earth-retaining drilling tool, umbrella branch drawing out soil equipment 49 fetches earth umbrella cover when finishing
492 collapse, and center drilling tool 3 and intermediate sleeve drilling tool 4 stop operating, continue to lift up drilling tool while start the pressure concrete injecting of concrete pump 8.This portion
Divide specifically, power motor starts, and it is oblique that center drilling tool 3 drives the rotation of intermediate sleeve drilling tool 4 simultaneously slowly to move up band tooth umbrella
Support equidistant size, drilling tool rotate simultaneously umbrella branch drawing out soil equipment 49 by hydraulic pressure Hollow hydraulic cylinder and drive socket 46 by
Step is opened, and the upper soil horizon of umbrella cover 492 is scraped in rising edge rotation in side, band tooth umbrella bearing diagonal now side support umbrella facial bone 493 and umbrella cover 492,
While scraping broken corresponding soil layer, wipe spoir off and entered by soil inlet hole 410 in earth-retaining drilling tool.Umbrella branch drawing out soil equipment 49 has fetched earth
Umbrella cover 492 collapses when finishing, and drilling tool stops operating, and slowly lifting is converted to normal hoisting drilling tool while starts the pressure concrete injecting of concrete pump 8.Band
Back taper stepped ramp type body 72 (inverted cone stress disk) vertical section that rotation expands when tooth umbrella bearing diagonal is opened with supporting umbrella bone is inverted ladder type.
Note：Multiple back taper stepped ramp type bodies 72 can be set on corresponding stratum according to design requirement and soil properties umbrella branch drawing out soil equipment 49
(inverted cone stress disk)；
When the lifting key block 411 of the lower port of intermediate sleeve drilling tool 4 brushes up against outer sleeve 5 bottom of drilling tool, Synchronous lifting overcoat
Cylinder drilling tool 5, while pressure concrete injecting to designed elevation (is noted：During rig master winch lifting drilling tool, auxiliary equipment hoist engine 1 is corresponding
Coordinate).In addition, the pile-type can take rear joint bar construction technology in CFG reducing back taper steps as being used to be used as foundation pile in pile foundation
Steel reinforcement cage is inserted in type stake.What deserves to be explained is the principle of back taper stepped ramp type body 72 is set：On in the range of pile foundation or basement process
Portion can be set when stable earth formation (more than level of ground water), the stratum that compressibility is smaller, bearing capacity is higher, thickness is larger be present
Two or more back taper stepped ramp type bodies 72.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
- A kind of 1. drilling tool, it is characterised in that including：Outer sleeve drilling tool, intermediate sleeve drilling tool and the centre drill being sequentially coaxially arranged Tool；The center drilling tool is provided with the first linkage in lower end；The intermediate sleeve drilling tool includes the drive socket and earth-retaining sleeve being sequentially coaxially arranged, and the earth-retaining sleeve is set in upper end The fluid pressure drive device for driving drive socket lifting moving is equipped with, the earth-retaining sleeve is provided with the second linkage dress in lower end Put, the drive socket is provided with the 3rd linkage in upper end, and the lower end of the drive socket is provided with umbrella branch and fetched earth Device；The outer sleeve drilling tool is disposed with four-axle linkage device, casing and the 6th linkage in upper end, on the casing It is provided with the 5th linkage.
- 2. drilling tool according to claim 1, it is characterised in that the center drilling tool includes：Hollow drill, retractable brill Head and the first helical blade；First helical blade is big including being set gradually from top to bottom along the axial direction of the hollow drill Helical blade and minor spiral blade, the drill bit are connected to the lower end of the hollow drill, and first linkage is arranged at On the drill bit, the upper end of the hollow drill is provided with first flange disk.
- 3. drilling tool according to claim 2, it is characterised in that the fluid pressure drive device includes：Hydraulic rotating device and Hollow hydraulic jack, the hydraulic rotating device are fixed on the upper end of the earth-retaining sleeve by sliding support, and pass through oil pipe It is connected with the hollow hydraulic jack, the hollow hydraulic jack is located at below the hydraulic rotating device, and described hollow The output end of hydraulic jack is connected with the upper end of the drive socket, and the 3rd linkage is located at the upper of the drive socket End, and the upper end of the 3rd linkage is provided with second flange disk.
- 4. drilling tool according to claim 3, it is characterised in that the umbrella branch drawing out soil equipment includes：Band tooth bearing diagonal, Umbrella cover and umbrella cover bone, the upper end that the umbrella cover bone is hinged on tooth bearing diagonal, the lower end of the umbrella cover bone passes through connecting shaft With the earth-retaining sleeve connection, the umbrella cover encloses the periphery for being located at the umbrella cover bone, the upper end with tooth bearing diagonal with it is described Drive socket connects；The umbrella cover bone can be opened or collapsed under being driven in the drive socket lifting action, and described Lifting spacing hole is provided with drive socket, the positive stop key coordinated for the lifting spacing hole is provided with the earth-retaining sleeve Block.
- 5. drilling tool according to claim 4, it is characterised in that the outer sleeve drilling tool includes：Outer sleeve and the second spiral Blade, second helical blade are axially set on the outer wall of the outer sleeve along the outer sleeve, and second spiral shell The change that vane diametrically successively decreases successively from top to bottom；The outer sleeve is disposed with four-axle linkage device, casing in upper end With the 6th linkage, the 5th linkage is provided with the casing, the 6th linkage is located at second spiral Above blade.
- 6. drilling tool according to claim 5, it is characterised in thatFirst linkage includes key block, and the key block is arranged on the drill bit of the center drilling tool lower end；Described second Linkage includes keyway, and the keyway is arranged at the lower end of the earth-retaining sleeve, and the keyway can cooperate with key block To be locked；3rd linkage includes the first cubic cylinder, and the first cubic cylinder is coaxially arranged with section as circular the One sets of holes, first sets of holes are used for the upper end for being fixed on the drive socket；The four-axle linkage device includes cylinder, institute It is the second square sets of holes to state cylinder and be coaxially arranged with section, and second sets of holes are used to be inserted in the 3rd linkage；5th linkage includes the 3rd cubic cylinder, and the 3rd cubic cylinder is coaxially disposed section as the square the 3rd Sets of holes, the 3rd sets of holes are used to be inserted in the 6th linkage；6th linkage includes the 4th cubic cylinder, the Four cubic cylinders are coaxially disposed section as the 4th circular sets of holes, and the 4th sets of holes are used to be fixed on the outer sleeve End.
- 7. the CFG reducing back taper stepped ramp type stakes that in a kind of 1-6 according to claim prepared by drilling tool described in any one, its feature exist In being provided with least two back taper stepped ramp type bodies on, including main body pile body, the main body pile body.
- 8. CFG reducings back taper stepped ramp type stake according to claim 7, it is characterised in that the horizontal stroke of the back taper stepped ramp type body Section is circle, and vertical section is inverted ladder type.
- 9. CFG reducings back taper stepped ramp type stake according to claim 7, it is characterised in that the back taper stepped ramp type body falls The angle angular range of Cone Disc inclined-plane extended line and main body pile body central axis is：30 °~45 °.
- 10. CFG reducings back taper stepped ramp type stake according to claim 7, it is characterised in that be inserted with the main body pile body Steel reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537731.9U CN206753494U (en) | 2017-05-12 | 2017-05-12 | The back taper stepped ramp type stake of CFG reducings and drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537731.9U CN206753494U (en) | 2017-05-12 | 2017-05-12 | The back taper stepped ramp type stake of CFG reducings and drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753494U true CN206753494U (en) | 2017-12-15 |
Family
ID=60618276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720537731.9U Withdrawn - After Issue CN206753494U (en) | 2017-05-12 | 2017-05-12 | The back taper stepped ramp type stake of CFG reducings and drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206753494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978974A (en) * | 2017-05-12 | 2017-07-25 | 李广信 | The stake of CFG reducing back tapers stepped ramp type and preparation method and drilling tool |
-
2017
- 2017-05-12 CN CN201720537731.9U patent/CN206753494U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978974A (en) * | 2017-05-12 | 2017-07-25 | 李广信 | The stake of CFG reducing back tapers stepped ramp type and preparation method and drilling tool |
| CN106978974B (en) * | 2017-05-12 | 2024-04-09 | 李广信 | CFG reducing back taper stepped pile, preparation method and drilling tool |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebei cone base civil engineering Co.,Ltd. Assignor: Li Guangxin Contract record no.: 2018990000103 Denomination of utility model: Stepped ramp type stake of CFG reducing back taper and drilling tool Granted publication date: 20171215 License type: Exclusive License Record date: 20180419 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20240409 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20240409 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |