CN201679450U - Bidirectional spiral extruding reaming drill with soil guiding grooves - Google Patents
Bidirectional spiral extruding reaming drill with soil guiding grooves Download PDFInfo
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- CN201679450U CN201679450U CN2010201331155U CN201020133115U CN201679450U CN 201679450 U CN201679450 U CN 201679450U CN 2010201331155 U CN2010201331155 U CN 2010201331155U CN 201020133115 U CN201020133115 U CN 201020133115U CN 201679450 U CN201679450 U CN 201679450U
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- Prior art keywords
- extruding
- enlarging
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- soil box
- driving
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- 239000002689 soil Substances 0.000 title claims abstract description 74
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 40
- 238000005553 drilling Methods 0.000 claims abstract description 35
- 238000005253 cladding Methods 0.000 claims description 4
- 230000003467 diminishing effect Effects 0.000 claims description 4
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 4
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 3
- 238000004826 seaming Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000004567 concrete Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A bidirectional spiral extruding reaming drill with soil guiding grooves comprises a hollow drill central rod. A heading spiral body, a heading spiral extruding reaming body, an extruding reaming stabilizing body and a counter extruding reaming body are sequentially and coaxially sleeved or integrally manufactured on the outer lateral wall of the drill central rod from bottom to top; the counter extruding reaming body is a round table body with a gradually reducing cross section from bottom to top, and counter spiral extruding seaming blades are arranged on the outer lateral wall of the counter extruding reaming body; the heading spiral extruding reaming body is a circular table body with a gradually enlarging cross section from bottom to top; heading spiral blades are arranged on the outer lateral walls of the heading spiral extruding reaming body and the heading spiral body, and the rotation directions of the heading spiral blades are opposite to those of the counter spiral extruding reaming blades; and the spiral soil guiding grooves arranged on the lateral wall of the heading spiral extruding reaming body are positioned among the heading spiral blades, and the soil guiding grooves extend upwards along the outer lateral wall of the extruding reaming stabilizing body and penetrate through the extruding reaming stabilizing body. The bidirectional spiral extruding reaming drill with soil guiding grooves has the advantages of less drilling power consumption, higher drilling efficiency and more effective environmental protection.
Description
Technical field
The utility model relates to a kind of bidirectional helix extruding enlarging aiguille that having of field of civil engineering led soil box that is applied to.
Background technology
Beijing China Metallurgical Engineering Ltd on February 15th, 2007 to China national Department of Intellectual Property applied for that application number is 200710063983.3, denomination of invention is the patent of invention of " bidirectional helix extruding-enlarging pile construction method and bidirectional helix closed extruding-enlarging aiguille ", this patent of invention discloses following technical scheme:
Bidirectional helix closed extruding-enlarging aiguille, the connecting rod that comprises hollow, top at connecting rod is provided with mounting flange, its bottom is provided with apex point, the bottom of described connecting rod is set with or is shaped on down integratedly the helix extruding-enlarging body from bottom to up successively coaxially, sealed extruding expanding body and movable sealing extruding expanding body, described movable sealing extruding expanding body is the diminishing from bottom to top Rotary-table of cross section, the lateral wall of movable sealing extruding expanding body is provided with left-handed movable sealing helix extruding-enlarging blade, described sealed extruding expanding body is a cylinder, described helix extruding-enlarging body down is the Rotary-table that cross section increases from bottom to top gradually, the lateral wall of following helix extruding-enlarging body is provided with the following helix extruding-enlarging blade of dextrorotation, and described movable sealing helix extruding-enlarging blade and the described external diameter of helix extruding-enlarging blade down are not more than the external diameter of described sealed extruding expanding body.
But, above-mentioned bidirectional helix closed extruding-enlarging aiguille is owing to be to utilize bidirectional helix closed extruding-enlarging aiguille two-way that the soil body in the former stake hole is squeezed in the sidewall in stake hole when advancing to bore and carrying brill, in the drilling construction of reality, find, the suffered frictional resistance from stake hole sidewall of bit part is very big, this has not only increased power consumption, has also reduced drilling efficiency.
The utility model content
The purpose of this utility model be to provide a kind of creep into power consumption still less, drilling efficiency is higher, also more environmental protection have a bidirectional helix extruding enlarging aiguille of leading soil box.
Of the present utility model have a bidirectional helix extruding enlarging aiguille of leading soil box, the bit central bar that comprises hollow, the top of bit central bar is provided with jointing, its bottom is provided with apex point, be set with or be shaped on integratedly the driving conveyor screw on the lateral wall of described bit central bar from bottom to up successively coaxially, driving helix extruding-enlarging body, squeezed liptinite and counter extruding expanding body, described counter extruding expanding body is the diminishing from bottom to top Rotary-table of cross section, the lateral wall of counter extruding expanding body is provided with counter helix extruding-enlarging blade, described squeezed liptinite is a cylinder, described driving helix extruding-enlarging body is the Rotary-table that cross section increases from bottom to top gradually, described driving conveyor screw is a cylinder, described driving helix extruding-enlarging body and the spirochetal lateral wall of driving are provided with the rotation direction driving helical blade opposite with the rotation direction of described counter helix extruding-enlarging blade, between the driving helical blade, be provided with the spiral helicine soil box of leading on the sidewall of driving helix extruding-enlarging body, lead soil box and extend up through squeezed liptinite along the lateral wall of described squeezed liptinite.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, the equal diameters of the diameter of wherein said squeezed liptinite and described counter extruding expanding body bottom, the diameter on described driving helix extruding-enlarging body top and the equal diameters of described squeezed liptinite, the equal diameters of spirochetal diameter of described driving and described driving helix extruding-enlarging body bottom, described lead soil box between described counter helix extruding-enlarging blade in the shape of a spiral shape extend up through the lateral wall of described counter extruding expanding body, the external diameter of described driving helical blade and counter helix extruding-enlarging blade is not more than the external diameter of described squeezed liptinite.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, wherein said lead be equipped with in the soil box more than one be used to adjust lead the soil box degree of depth and/or width lead the soil box cladding plate, the quantity of leading soil box is 1-6.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, the outer diameter D of wherein said counter helix extruding-enlarging blade
1Can select its outer diameter D according to stratum condition
1Mathematic(al) representation be:
D
1＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described counter extruding expanding body
1Mathematic(al) representation be:
H
1＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
The diameter D of described squeezed liptinite
2Mathematic(al) representation be:
D
2＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described squeezed liptinite
2Mathematic(al) representation is:
H
2＝(1.05～5.15)D
D is a drilling diameter in the formula, long measure mm;
Described driving helical blade is positioned at the outer diameter D of described driving helix extruding-enlarging body portion
3Can select its outer diameter D according to stratum condition
3Its mathematic(al) representation be:
D
3＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described driving helix extruding-enlarging body
3Mathematic(al) representation be:
H
3＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
Described driving helical blade is positioned at the outer diameter D of described driving conveyor screw part
4Can select its outer diameter D according to stratum condition
4Mathematic(al) representation be:
D
4＝(0.95～1.15)D
3
D in the formula
3For the driving helical blade is positioned at the external diameter that tunnels the helix extruding-enlarging body portion, long measure mm;
The mathematic(al) representation of the pitch of described driving helical blade is:
L
4＝(0.75～0.95)D
D is a drilling diameter in the formula, long measure mm;
The spirochetal height H of described driving
4Mathematic(al) representation be:
H
4＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, the number of turns of wherein said counter helix extruding-enlarging blade is the 2-6 circle, the number of turns of described driving helical blade is a 1-6 circle, described lead soil box along the lateral wall of described squeezed liptinite linearly upwards or helix extend up through described squeezed liptinite.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, wherein turn over 60 °-270 ° and locate to be symmetrical arranged the auxiliary helical blade of half-turn in the original position isoplanar of described driving helical blade, the direction of rotation of auxiliary helical blade is identical with the driving helical blade with the spiral shell square.
The utlity model has the bidirectional helix extruding enlarging aiguille of leading soil box, wherein be separately installed with a plurality of alloys brill teeth in the bottom of described driving helical blade and the bottom of described auxiliary helical blade, described apex point is that the filling apex point is pressed at general center.
Of the present utility model have a bidirectional helix extruding enlarging aiguille of leading soil box, it is the structure of on the basis of prior art, having improved drill bit, on the lateral wall of bit central bar, be set with or be shaped on integratedly the driving conveyor screw from bottom to up successively coaxially, driving helix extruding-enlarging body, squeezed liptinite and counter extruding expanding body, and between the driving helical blade, be provided with the spiral helicine soil box of leading on the sidewall of driving helix extruding-enlarging body, lead soil box and extend up through squeezed liptinite along the lateral wall of squeezed liptinite, in work progress, the native stone that is come out by rotary drill is in the process that is extruded the shot borehole sidewall, the native stone of a part is before being extruded the shot borehole sidewall, can enter and lead in the soil box, and can be under the promotion of the drill bit that is rotating, move upward along leading soil box, progressively clamp-oned in the sidewall in a hole subsequently again, thereby reduce the suffered frictional resistance of drill bit, make and creep into power consumption still less, drilling efficiency is higher, also energy-conserving and environment-protective more.
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Description of drawings
Fig. 1 is the front view of the structural representation of a kind of embodiment with the bidirectional helix extruding enlarging aiguille of leading soil box of the present utility model;
Fig. 2 is the sectional view of the cross section of the squeezed liptinite part among Fig. 1;
Fig. 3 is the front view of the structural representation of the another kind of embodiment with the bidirectional helix extruding enlarging aiguille of leading soil box of the present utility model.
The specific embodiment
As depicted in figs. 1 and 2, of the present utility model have a bidirectional helix extruding enlarging aiguille of leading soil box, the bit central bar 2 that comprises hollow, the top of bit central bar 2 is provided with jointing 1, its bottom is provided with apex point 20, apex point 20 can be that the filling apex point is pressed at general center, it also can be other forms of apex point, be set with driving conveyor screw 3 on the lateral wall of bit central bar 2 from bottom to up successively coaxially, driving helix extruding-enlarging body 4, squeezed liptinite 5 and counter extruding expanding body 6, and adopt welding will tunnel conveyor screw 3, driving helix extruding-enlarging body 4, squeezed liptinite 5 and counter extruding expanding body 6 are fixed on the bit central bar 2.
Counter extruding expanding body 6 is the diminishing from bottom to top Rotary-table of cross section, adopt on the lateral wall of counter extruding expanding body 6 and be welded with counter helix extruding-enlarging blade 8, squeezed liptinite 5 is a cylinder, driving helix extruding-enlarging body 4 is the Rotary-table that cross section increases from bottom to top gradually, driving conveyor screw 3 is a cylinder, adopt on the lateral wall of driving helix extruding-enlarging body 4 and driving conveyor screw 3 and be welded with rotation direction and the opposite driving helical blade 18 of rotation direction that breaks through helix extruding-enlarging blade 8, between driving helical blade 18, be provided with the spiral helicine soil box 15 of leading on the sidewall of driving helix extruding-enlarging body 4, lead soil box 15 and extend through squeezed liptinite 5 on the alignment in the shape of a spiral along the lateral wall of squeezed liptinite 5, leading soil box 15 also can be as shown in Figure 3, is that the lateral wall along squeezed liptinite 5 linearly extends up through squeezed liptinite 5.
Above-mentioned bit central bar 2 also can be the structure that is made into integration with driving conveyor screw 3, driving helical blade 18, driving helix extruding-enlarging body 4, squeezed liptinite 5, counter extruding expanding body 6 and driving helical blade 18, promptly adopts known method such as hot investment casting that bit central bar 2 and driving conveyor screw 3, driving helical blade 18, driving helix extruding-enlarging body 4, squeezed liptinite 5, counter extruding expanding body 6 and driving helical blade 18 are made one.
The diameter of squeezed liptinite 5 and the equal diameters that breaks through extruding expanding body 6 bottoms, the diameter on driving helix extruding-enlarging body 4 tops and the equal diameters of squeezed liptinite 5, the diameter of driving conveyor screw 3 and the equal diameters of tunneling helix extruding-enlarging body 4 bottoms, lead soil box 15 between counter helix extruding-enlarging blade 8 in the shape of a spiral shape extend up through the lateral wall of counter extruding expanding body 6, the external diameter of driving helical blade 18 and counter helix extruding-enlarging blade 8 is not more than the external diameter of squeezed liptinite 5.
Lead bottoms in the soil box 15 be equipped with more than one be used to adjust lead soil box 15 degree of depth and/or width lead soil box cladding plate 10, lead soil box cladding plate 10 and adopt the bottoms of screw during leading soil box 15, the quantity of leading soil box 15 can be that 1-6 is individual.
The outer diameter D of counter helix extruding-enlarging blade 8
1Can select its outer diameter D according to stratum condition
1Mathematic(al) representation be:
D
1＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of counter extruding expanding body 6
1Mathematic(al) representation be:
H
1＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
The diameter D of squeezed liptinite 5
2Mathematic(al) representation be:
D
2＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of squeezed liptinite 5
2Mathematic(al) representation is:
H
2＝(1.05～5.15)D
D is a drilling diameter in the formula, long measure mm;
Driving helical blade 18 is positioned at the outer diameter D of driving helix extruding-enlarging body 4 parts
3Can select its outer diameter D according to stratum condition
3Its mathematic(al) representation be:
D
3＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of driving helix extruding-enlarging body 4
3Mathematic(al) representation be:
H
3＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
Driving helical blade 18 is positioned at the outer diameter D of driving conveyor screw 3 parts
4Can select its outer diameter D according to stratum condition
4Mathematic(al) representation be:
D
4＝(0.95～1.15)D
3
D in the formula
3For driving helical blade 18 is positioned at the external diameter that tunnels helix extruding-enlarging body 4 parts, long measure mm;
The mathematic(al) representation of the pitch of driving helical blade 18 is:
L
4＝(0.75～0.95)D
D is a drilling diameter in the formula, long measure mm;
The height H of driving conveyor screw 3
4Mathematic(al) representation be:
H
4＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm.
The number of turns of above-mentioned counter helix extruding-enlarging blade 8 is 1 circle, perhaps is the 2-6 circle, and the number of turns of driving helical blade 18 is 1 circle, perhaps is the 2-6 circle.
In the original position isoplanar of driving helical blade 18, turn over 180 ° and locate to be symmetrical arranged the auxiliary helical blade 19 of half-turn, the direction of rotation of auxiliary helical blade 19 is identical with driving helical blade 18 with the spiral shell square, and the bottom of driving helical blade 18 and the bottom of auxiliary helical blade 19 are separately installed with alloy and bore tooth (not drawing among the figure).
Job practices with the bidirectional helix extruding enlarging aiguille of leading soil box of the present utility model comprises following construction sequence:
1) it is in place according to known method the pile work drilling machine with the bidirectional helix extruding enlarging aiguille of leading soil box will to be installed, and is ready to concrete pump, and preparation needs the piling of perfusion.Piling is any one of concrete piling or CFG material or tailings mortar piling or cement slag piling etc., and the CFG material is the CFG piling.
2) be equipped with the pile work drilling machine with the bidirectional helix extruding enlarging aiguille of leading soil box in place after, start pile work drilling machine and apply clockwise moment of torsion and downward axial compression, utilization has the bidirectional helix extruding enlarging aiguille of leading soil box and creeps into squeezed hole, order has the downward rotary drill squeezed hole of the bidirectional helix extruding enlarging aiguille of leading soil box, in this process, be positioned at a part of soil body that driving helix extruding-enlarging body 4 and driving conveyor screw 3 side-walls are come out by rotary drill, can under the effect of driving helical blade 18, do screw from bottom to top and progressively clamp-oned in the sidewall in a hole or be pressed against the lower end of squeezed liptinite 5, clamp-oned in the sidewall in a hole by squeezed liptinite 5 subsequently, some native stone is before being extruded the shot borehole sidewall, can be introduced into and lead in the soil box, and can be under the promotion of the drill bit that is rotating, move upward along leading soil box, progressively clamp-oned in the sidewall in a hole subsequently again, thereby reduce the suffered frictional resistance of drill bit, make and creep into power consumption still less, drilling efficiency is higher, also energy-conserving and environment-protective more.Stake bore dia after squeezed should adhere to specification, and the backspin machinery squeezed hole process with the bidirectional helix extruding enlarging aiguille of leading soil box is till reaching the design hole depth.
3) after squeezed the finishing of first step stake hole machinery, start the power that axially lifts that pile work drilling machine applies clockwise moment of torsion and makes progress, make and have the bidirectional helix extruding enlarging aiguille of leading soil box and move upward and rotate the extruded and extended pile hole once more, in rotating up squeezed lifting process, the counter extruding expanding body 6 that is positioned at squeezed liptinite 5 tops in the stake hole reaches the slump soil body of top on every side, can under counter helix extruding-enlarging blade 8 effect of counter extruding expanding body 6, do top-down screw and clamp-oned in the sidewall in extruded and extended pile stake hole gradually or be pressed against the upper end of squeezed liptinite 5, clamp-oned in the sidewall in a hole by squeezed liptinite 5 subsequently, guaranteeing that once more the stake bore dia after squeezed adheres to specification, second step stake hole machinery squeezing process lasts till that having the bidirectional helix extruding enlarging aiguille of leading soil box is rotated and rises to the face of land.
4) have when the bidirectional helix extruding enlarging aiguille of leading soil box revolves squeezed lifting on beginning, start concrete pump, irritate to finishing the pressure of carrying out piling in squeezed stake hole, the 3rd a step hole pressure is squeezed to be to carry out under the high pressure effect of concrete pump, squeezed by concrete pressure, can make the pile cutoff of having finished the filling of piling pressure can guarantee that expanded diameter adheres to specification, this hole pressure squeezing process will last till that piling press to irritate till the design elevation of stake top, so far form columniform bidirectional helix extruding-enlarging stake.
According to designing requirement, can also in helix extruding-enlarging stake pile body, insert reinforcing cage, tendon or shaped steel according to known method.
Suitable stratum with the bidirectional helix extruding enlarging aiguille of leading soil box of the present utility model is extensive, comprise backfill, sand, silt, bury, silty clay, clay, loess, gravel soil, sand pebble soil and severely-weathered soil layer etc., also be applicable to the situation of phreatic high simultaneously.
Pile foundation, composite pile foundation, composite foundation or the ground that the utility model implements to finish handled and reinforced all kinds of engineerings that can be widely used in the civil engineering different field, comprising: high level and superelevation layer residential houses engineering, commercial building engineering, industrial premises engineering, traffic engineering, hydroelectric project and Environmental Engineering etc.
Claims (7)
1. has the bidirectional helix extruding enlarging aiguille of leading soil box, the bit central bar (2) that comprises hollow, the top of bit central bar (2) is provided with jointing (1), its bottom is provided with apex point (20), it is characterized in that being set with coaxially successively from bottom to up or being shaped on integratedly on the lateral wall of described bit central bar (2) driving conveyor screw (3), driving helix extruding-enlarging body (4), squeezed liptinite (5) and counter extruding expanding body (6), described counter extruding expanding body (6) is the diminishing from bottom to top Rotary-table of cross section, the lateral wall of counter extruding expanding body (6) is provided with counter helix extruding-enlarging blade (8), described squeezed liptinite (5) is a cylinder, described driving helix extruding-enlarging body (4) is the Rotary-table that cross section increases from bottom to top gradually, described driving conveyor screw (3) is a cylinder, the lateral wall of described driving helix extruding-enlarging body (4) and driving conveyor screw (3) is provided with the rotation direction driving helical blade (18) opposite with the rotation direction of described counter helix extruding-enlarging blade (8), be positioned between driving helical blade (18) on the sidewall of driving helix extruding-enlarging body (4) and be provided with the spiral helicine soil box (15) of leading, lead soil box (15) and extend up through squeezed liptinite (5) along the lateral wall of described squeezed liptinite (5).
2. as claimed in claim 1 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: the equal diameters of the diameter of described squeezed liptinite (5) and described counter extruding expanding body (6) bottom, the diameter on described driving helix extruding-enlarging body (4) top and the equal diameters of described squeezed liptinite (5), the equal diameters of the diameter of described driving conveyor screw (3) and described driving helix extruding-enlarging body (4) bottom, described lead soil box (15) between described counter helix extruding-enlarging blade (8) in the shape of a spiral shape extend up through the lateral wall of described counter extruding expanding body (6), the external diameter of described driving helical blade (18) and counter helix extruding-enlarging blade (8) is not more than the external diameter of described squeezed liptinite (5).
3. as claimed in claim 2 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: described lead be equipped with in the soil box (15) more than one be used for adjusting lead soil box (15) degree of depth and/or width lead soil box cladding plate (10), the quantity of leading soil box (15) is 1-6.
4. as claimed in claim 3 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: the outer diameter D of described counter helix extruding-enlarging blade (8)
1Can select its outer diameter D according to stratum condition
1Mathematic(al) representation be:
D
1＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described counter extruding expanding body (6)
1Mathematic(al) representation be:
H
1＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
The diameter D of described squeezed liptinite (5)
2Mathematic(al) representation be:
D
2＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described squeezed liptinite (5)
2Mathematic(al) representation is:
H
2＝(1.05～5.15)D
D is a drilling diameter in the formula, long measure mm;
Described driving helical blade (18) is positioned at the outer diameter D of described driving helix extruding-enlarging body (4) part
3Can select its outer diameter D according to stratum condition
3Its mathematic(al) representation be:
D
3＝(0.85～1.25)D
D is a drilling diameter in the formula, long measure mm;
The height H of described driving helix extruding-enlarging body (4)
3Mathematic(al) representation be:
H
3＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm;
Described driving helical blade (18) is positioned at the outer diameter D of described driving conveyor screw (3) part
4Can select its outer diameter D according to stratum condition
4Mathematic(al) representation be:
D
4＝(0.95～1.15)D
3
D in the formula
3For driving helical blade (18) is positioned at driving helix extruding-enlarging body (4) external diameter partly, long measure mm;
The mathematic(al) representation of the pitch of described driving helical blade (18) is:
L
4＝(0.75～0.95)D
D is a drilling diameter in the formula, long measure mm;
The height H of described driving conveyor screw (3)
4Mathematic(al) representation be:
H
4＝(1.45～5.15)D
D is a drilling diameter in the formula, long measure mm.
5. as claimed in claim 4 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: the number of turns of described counter helix extruding-enlarging blade (8) is the 2-6 circle, the number of turns of described driving helical blade (18) is a 1-6 circle, described lead soil box (15) along the lateral wall of described squeezed liptinite (5) linearly upwards or helix extend up through described squeezed liptinite (5).
6. as claimed in claim 5 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: turn over 60 °-270 ° and locate to be symmetrical arranged the auxiliary helical blade (19) of half-turn in the original position isoplanar of described driving helical blade (18), the direction of rotation of auxiliary helical blade (19) is identical with driving helical blade (18) with the spiral shell square.
7. as claimed in claim 6 have a bidirectional helix extruding enlarging aiguille of leading soil box, it is characterized in that: be separately installed with a plurality of alloys brill teeth in the bottom of described driving helical blade (18) and the bottom of described auxiliary helical blade (19), described apex point (20) is that the filling apex point is pressed at general center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201331155U CN201679450U (en) | 2010-03-17 | 2010-03-17 | Bidirectional spiral extruding reaming drill with soil guiding grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201331155U CN201679450U (en) | 2010-03-17 | 2010-03-17 | Bidirectional spiral extruding reaming drill with soil guiding grooves |
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| Publication Number | Publication Date |
|---|---|
| CN201679450U true CN201679450U (en) | 2010-12-22 |
Family
ID=43344498
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201331155U Expired - Fee Related CN201679450U (en) | 2010-03-17 | 2010-03-17 | Bidirectional spiral extruding reaming drill with soil guiding grooves |
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| CN (1) | CN201679450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953030A (en) * | 2014-05-07 | 2014-07-30 | 孔超 | Threaded screwing inserting bar compaction filling pile |
| CN104762962A (en) * | 2015-04-08 | 2015-07-08 | 武汉高铁桩工科技有限公司 | Variable cross-section extrusion-expansion screw pile drilling tool |
| CN108360978A (en) * | 2018-02-08 | 2018-08-03 | 中国京冶工程技术有限公司 | A kind of short spiral extrusion soil filling pile combined type construction method and assembly type drilling tool |
-
2010
- 2010-03-17 CN CN2010201331155U patent/CN201679450U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953030A (en) * | 2014-05-07 | 2014-07-30 | 孔超 | Threaded screwing inserting bar compaction filling pile |
| CN103953030B (en) * | 2014-05-07 | 2015-12-16 | 孔超 | The compacted castinplace pile of screw thread supination joint bar |
| CN104762962A (en) * | 2015-04-08 | 2015-07-08 | 武汉高铁桩工科技有限公司 | Variable cross-section extrusion-expansion screw pile drilling tool |
| CN108360978A (en) * | 2018-02-08 | 2018-08-03 | 中国京冶工程技术有限公司 | A kind of short spiral extrusion soil filling pile combined type construction method and assembly type drilling tool |
| CN108360978B (en) * | 2018-02-08 | 2024-02-13 | 中国京冶工程技术有限公司 | Combined construction method of short spiral soil-squeezing bored concrete pile and assembled drilling tool |
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