CN203430439U - Thread type pile and spiral drilling machine for forming thread type pile - Google Patents
Thread type pile and spiral drilling machine for forming thread type pile Download PDFInfo
- Publication number
- CN203430439U CN203430439U CN201320500668.3U CN201320500668U CN203430439U CN 203430439 U CN203430439 U CN 203430439U CN 201320500668 U CN201320500668 U CN 201320500668U CN 203430439 U CN203430439 U CN 203430439U
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- drilling pipe
- hollow
- drill
- blades
- drilling machine
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Abstract
The utility model aims at providing a thread type pile and a spiral drilling machine for forming the thread type pile, wherein the thread type pile is large in bearing capacity, low in cost and good in quality, and the spiral drilling machine for forming the thread type pile is high in pile forming quality and construction efficiency. The spiral drilling machine for forming the thread type pile comprises a hollow drill rod and a drill barrel, the hollow drill rod is divided into two parts, the outer side of the upper half part is provided with spiral blades, and the lower half part is a hollow straight rod. A limiting flange is arranged on the hollow straight rod, and a plurality of keys are machined on the bottom surface of the hollow straight rod. The drill barrel is coaxial with the hollow drill rod, and the diameter of the drill barrel is slightly larger than that of the hollow straight rod on the lower portion of the hollow drill rod. A slide way is machined inside the drill barrel. A plurality of keys are machined at the bottom of the drill barrel and are matched with key grooves in the bottom of the hollow straight rod. A drill bit is installed at the bottom of the drill barrel, and spiral blades are arranged outside the drill barrel. The spiral blades outside the drill barrel comprise a main blade and an auxiliary blade, and the main blade is provided with a limiting block.
Description
Technical field
The utility model relates to stake and the pile-forming equipment in a kind of drilling well field, particularly relates to a kind of screw-type stake and for the spiral drilling machine of moulding screw-type stake.
Background technology
In engineering geological drilling and mineral reserve drilling process, the application of pile foundation construction boring machine aspect basic engineering construction is more and more extensive.Long spiral engineering method is to adopt to have the long-spiral drilling machine of core pipe to carry out drilling construction, after reaching hole depth, with high pressure concrete delivery pump by the concrete mixing in the core pipe injection hole of long screw drill rod, then limit Ti Zuan limit infusion is until pile.Existing drilling rod is generally column type drilling rod, rely on helical blade to take surflaes out of, but because the complexity of drilling depth and geologic structure changes, column type pile body is to provide bearing capacity by side skin friction in soil layer, so not enough with the native more smooth opposite force providing of contact surface, when running into large load, there is the drawbacks such as distortion is larger.Meet bearing capacity and normally expand a footpath, increase stake long, will inevitably bring construction volume increase, duration lengthening, cost up, waste and the problem such as seriously polluted.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of bearing capacity is large, cost is low, the measured screw-type stake of matter, the spiral drilling machine for the stake of moulding screw-type that a kind of pile quality is high, efficiency of construction is high.
The utility model is for the spiral drilling machine of moulding screw-type stake, comprise hollow drill and drilling pipe, described hollow drill is divided into two parts, the first half outside is with helical blade, the latter half is hollow straight-bar, on described hollow straight-bar, be processed with defining flange, hollow straight-bar bottom is for being processed with some keys on opening and bottom surface, described drilling pipe with hollow drill coaxial and slightly larger in diameter in the hollow straight-bar of hollow drill bottom, drilling pipe is inner is processed with slideway with described defining flange corresponding position, drilling pipe bottom is processed with some keys, match with the keyway of hollow straight-bar bottom, drilling pipe bottom is also provided with drill bit that can discharging, drilling pipe outside is with at least two helical blades, its pitch is greater than the pitch of hollow drill external helicoid blade, described drilling pipe external helicoid blade comprises primary blades and back blades, primary blades external diameter is identical with hollow drill external helicoid blade external diameter, back blades external diameter is slightly less than primary blades, described primary blades is arranged on drilling pipe outer wall, back blades is positioned at above or below primary blades, major-minor blade is hinged on respectively on brace, in described primary blades, limited block is installed, described limited block rotates for limiting the pin joint of brace in primary blades, make back blades when rotating, can reach primary blades outside.
The utility model is for the spiral drilling machine of moulding screw-type stake, and wherein said drilling pipe top is provided with sleeve, and sleeve lining diameter is slightly less than the diameter of defining flange, and described drilling pipe and sleeve form the slideway of sealing jointly.
The utility model is for the spiral drilling machine of moulding screw-type stake, and wherein said drilling pipe inwall is respectively provided with a seal groove up and down, and described sleeve lining is provided with seal groove, in drilling pipe and sleeve, on seal groove, sealing ring is all installed.
A kind of screw-type stake of the utility model, comprises column type pile body, and described pile body external process has at least two screw type pile sections.
The utility model difference from prior art is, on the spiral drilling machine sleeve of the utility model for the stake of moulding screw-type, the helical blade that pitch is greater than hollow drill blade pitch is installed, blade is comprised of major-minor blade, its back blades can stretch out when promoting spiral drilling machine, on the hole having become, process screw type pile section, while concrete perfusion, operating efficiency is high.It is hinged, simple and practical that major-minor blade pass in drilling pipe is crossed brace, can cut down finished cost.The key of hollow straight-bar and drilling pipe bottom and complimentary keyways coordinate provides drilling pipe rotation required drive, and safe and reliable, transmission efficiency is higher.
Screw-type stake in the utility model, in the outer processing screw type pile section of holing, increases the concrete pile and the contact surface between soil layer that process, improve the frictional force between stake and soil layer, the bearing capacity of pile body is improved, firmer, better quality, the life-span is longer.
Below in conjunction with accompanying drawing, to a kind of screw-type stake of the utility model and for the spiral drilling machine of moulding screw-type stake, be described further.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the structural representation of the spiral drilling machine of moulding screw-type stake;
Fig. 2 is that the utility model is for the sectional view of spiral drilling machine hollow core straight-bar, sleeve and the drilling pipe of the stake of moulding screw-type;
Fig. 3 is that the utility model is for the external structure of the spiral drilling machine drilling pipe of moulding screw-type stake;
Fig. 4 is the sectional view of the utility model screw-type stake;
Fig. 5 a is the structural representation of the utility model while packing up for the spiral drilling machine blade of moulding screw-type stake;
The structural representation of Fig. 5 b when to be the utility model stretch out for the spiral drilling machine blade of moulding screw-type stake;
Fig. 6 a-Fig. 6 d is the job step schematic diagram of moulding screw-type stake.
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises hollow drill 1 and drilling pipe 2 for the spiral drilling machine of moulding screw-type stake, and hollow drill 1 is divided into two parts, wherein the first half tyre helical blade, the latter half is that hollow straight-bar 4 and bottom are opening, and upper and lower two parts are bolted.Drilling pipe 2 is enclosed within hollow drill 1 lower hollow straight-bar 4 outsides, and its top is provided with sleeve 5, and sleeve 5 is bolted with drilling pipe 2, is processed with upper end open slideway 15 in drilling pipe 2, and slideway 15 upper ends are by sleeve 5 sealings.On hollow straight-bar 4, be processed with a defining flange 8, defining flange 8 can move up and down in slideway 15.Drilling pipe 2 bottoms are processed with key 6, match with the keyway 7 of hollow straight-bar 4 bottoms processing, jointly for drilling pipe 2 and hollow drill 1 are synchronized with the movement, provide power.Drilling pipe 2 bottoms are also provided with the drill bit 3 that contains discharging opening.Drilling pipe 2 inwalls are respectively provided with a seal groove 13 up and down, and sleeve 5 inwalls are also provided with seal groove 13, in seal groove 13, sealing ring are installed.
As shown in Fig. 3, Fig. 5 a and Fig. 5 b, drilling pipe 2 outsides are with helical blade, but pitch is greater than the pitch of hollow drill 1 external spiral blade, and its blade comprises primary blades 9 and back blades 10.Primary blades 9 is arranged on drilling pipe 2 outer walls, back blades 10 is positioned at primary blades 9 tops, primary blades 9 and back blades 10 are hinged on respectively on brace 11, back blades 10 can rotate by the pin joint in primary blades 9, its maximum rotation angle is determined by the limited block 12 of installing in primary blades 9, when when back blades 10, it rotates to maximum angle, can stretch out outside primary blades 9.When spiral drilling machine creeps into downwards, back blades 10 is ensconced primary blades 9 tops, and the external diameter of back blades 10 is less than primary blades 9; When spiral drilling machine upwards promotes, hollow drill 1 and drilling pipe 2 reverse rotations, back blades 10 rotates around pin joint owing to promoting the pressure of spiral drilling machine, stretches out outside primary blades 9, and inserts in Soil Surrounding.
As shown in Figure 4, the stake of the utility model screw-type comprises column type pile body and external helicoid type pile section 14.
As shown in Fig. 6 a-d, the utility model is as follows for the construction sequence of the spiral drilling machine moulding screw-type stake of moulding screw-type stake:
One, as shown in Figure 6 a, spiral drilling machine is placed on and treats top, operating position, hollow drill upper end connects unit head and concrete pump;
Two, as shown in Figure 6 b, open unit head and transfer wire rope, the keyway 7 on hollow straight-bar 4 meshes with the key 6 in drilling pipe 2, and defining flange 8 is positioned at 15 times cut-off positions of slideway, and hollow drill and drilling pipe 2 start synchronously to creep into downwards;
Three, as shown in Fig. 6 c, creep into after assigned address, first Reverse Power head rotates a circle auger stem, back blades 10 stretches out rotation primary blades 9 outsides and inserts in the soil layer of hole wall owing to being subject to the frictional force that soil layer is larger around, then close unit head, boom hoist cable, hollow drill rises, keyway 7 on hollow straight-bar 4 is thrown off with the key 6 in drilling pipe 2, on defining flange 8, move on to cut-off position on slideway 15 simultaneously, open drill bit 3, open concrete pump, in hollow drill and drilling pipe 2 risings, back blades 10 is subject to pulling force that wire rope makes progress and the frictional force of hole wall soil layer in soil layer simultaneously, by continuing rotation under force action, rise, and then on hole wall, process screw type pile section 14, simultaneously concrete pump by hollow drill 1 to concrete perfusion in hole,
Four, as shown in Fig. 6 d, hollow drill and drilling pipe are proposed to operating position completely, close unit head and concrete pump, form screw-type stake as shown in Figure 4.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (4)
1. the spiral drilling machine for the stake of moulding screw-type, comprise hollow drill and drilling pipe, it is characterized in that: described hollow drill is divided into two parts, the first half outside is with helical blade, the latter half is hollow straight-bar, on described hollow straight-bar, be processed with defining flange, hollow straight-bar bottom is for being processed with some keys on opening and bottom surface, described drilling pipe with hollow drill coaxial and slightly larger in diameter in the hollow straight-bar of hollow drill bottom, drilling pipe is inner is processed with slideway with described defining flange corresponding position, drilling pipe bottom is processed with some keys, match with the keyway of hollow straight-bar bottom, drilling pipe bottom is also provided with drill bit that can discharging, drilling pipe outside is with at least two helical blades, its pitch is greater than the pitch of hollow drill external helicoid blade, described drilling pipe external helicoid blade comprises primary blades and back blades, primary blades external diameter is identical with hollow drill external helicoid blade external diameter, back blades external diameter is slightly less than primary blades, described primary blades is arranged on drilling pipe outer wall, back blades is positioned at above or below primary blades, major-minor blade is hinged on respectively on brace, in described primary blades, limited block is installed, described limited block rotates for limiting the pin joint of brace in primary blades, make back blades when rotating, can reach primary blades outside.
2. the spiral drilling machine for the stake of moulding screw-type according to claim 1, is characterized in that: described drilling pipe top is provided with sleeve, and sleeve lining diameter is slightly less than the diameter of defining flange, and described drilling pipe and sleeve form the slideway of sealing jointly.
3. the spiral drilling machine for the stake of moulding screw-type according to claim 2, is characterized in that: described drilling pipe inwall is respectively provided with a seal groove up and down, and described sleeve lining is provided with seal groove, in drilling pipe and sleeve, on seal groove, sealing ring is all installed.
4. a screw-type stake, comprises column type pile body, it is characterized in that: described pile body external process has at least two screw type pile sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500668.3U CN203430439U (en) | 2013-08-16 | 2013-08-16 | Thread type pile and spiral drilling machine for forming thread type pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500668.3U CN203430439U (en) | 2013-08-16 | 2013-08-16 | Thread type pile and spiral drilling machine for forming thread type pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430439U true CN203430439U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500668.3U Expired - Lifetime CN203430439U (en) | 2013-08-16 | 2013-08-16 | Thread type pile and spiral drilling machine for forming thread type pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410452A (en) * | 2013-08-16 | 2013-11-27 | 黄朝阳 | Threaded pile, spiral drilling machine for forming threaded pile and pile-forming construction method thereof |
| CN108093761A (en) * | 2017-12-27 | 2018-06-01 | 郑州国知网络技术有限公司 | A kind of portable plantation punching soil sampler |
-
2013
- 2013-08-16 CN CN201320500668.3U patent/CN203430439U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410452A (en) * | 2013-08-16 | 2013-11-27 | 黄朝阳 | Threaded pile, spiral drilling machine for forming threaded pile and pile-forming construction method thereof |
| CN108093761A (en) * | 2017-12-27 | 2018-06-01 | 郑州国知网络技术有限公司 | A kind of portable plantation punching soil sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |