CN103362461A - Long spiral drilling machine and drill bit thereof - Google Patents
Long spiral drilling machine and drill bit thereof Download PDFInfo
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- CN103362461A CN103362461A CN2013102835538A CN201310283553A CN103362461A CN 103362461 A CN103362461 A CN 103362461A CN 2013102835538 A CN2013102835538 A CN 2013102835538A CN 201310283553 A CN201310283553 A CN 201310283553A CN 103362461 A CN103362461 A CN 103362461A
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- helical blade
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- drill bit
- drilling rod
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Abstract
The embodiment of the invention provides a long spiral drilling machine and a drill bit thereof. The long spiral drilling machine comprises a drill rod, a drill tip and a spiral blade arranged on the drill rod, wherein a high-pressure pipe for conveying high-pressure liquid is arranged in the drill rod; an opening of the high-pressure pipe is arranged at the top end of the drill rod; a plurality of nozzles communicated with the high-pressure pipe are arranged on the upper surface of the spiral blade. In the embodiment of the invention, the high-pressure pipe is arranged in the drill rod and the nozzles connected with the high-pressure pipe are arranged on the upper surface of the spiral blade, so that high-pressure liquid can be sprayed through the nozzles from the upper surface of the spiral blade, soil attached to the upper surface of the spiral blade is crushed in a washing mode, and the drill locked phenomenon is avoided.
Description
Technical field
The present invention relates to the rig field, and more specifically, relate to a kind of long-spiral drilling machine and drill bit thereof.
Background technology
Long-spiral drilling machine is widely used in the foundation construction project of ground, and its drill bit is when clay stratum creeps into, and the viscosity soil body often can be attached on the helical blade on drilling rod surface, is called to embrace to bore, and causes drill bit to be difficult for drilling depth, even forms the hole of collapsing.
Summary of the invention
The embodiment of the invention provides a kind of drill bit of long-spiral drilling machine, bores to prevent from embracing.
First aspect provides a kind of drill bit of long-spiral drilling machine, comprises drilling rod, apex point and is arranged on helical blade on the described drilling rod, be provided with the high-voltage tube of conveying high-pressure liquid in the described drilling rod, and the opening of described high-voltage tube is arranged on the top of described drilling rod; The upper surface of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube.
In conjunction with first aspect, in a kind of implementation of first aspect, a plurality of nozzles of described helical blade upper surface spaced radial along described drilling rod in the axis projection of described drilling rod is arranged.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, a plurality of nozzles of described helical blade upper surface are intervally arranged along the hand of spiral of described helical blade.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, a plurality of nozzles of described helical blade upper surface are divided into many group nozzles, every group of nozzle spaced radial along described drilling rod in the axis projection of described drilling rod in wherein said many group nozzles is arranged, and the hand of spiral along described helical blade is intervally arranged between described every group of nozzle.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, the soffit of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, a plurality of nozzles of described helical blade soffit are arranged symmetrically with the surface of the relative described helical blade of a plurality of nozzles of described helical blade upper surface.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, the side of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube, and a plurality of nozzles of described helical blade side are intervally arranged along the side of described helical blade.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, the external surface of described apex point is provided with at least one nozzle that is communicated with described high-voltage tube.
In conjunction with first aspect or its above-mentioned implementation, in the another kind of implementation of first aspect, also be provided with in the described drilling rod for delivery of concrete central tube, wherein said high-voltage tube is positioned at described central tube, and mutually isolates with described central tube.
Second aspect provides a kind of long-spiral drilling machine, comprises the drill bit in the above-mentioned implementation.
In embodiments of the present invention, by high-voltage tube is set in drilling rod, and the nozzle that is connected with this high-voltage tube in the upper surface setting of helical blade, thereby can be by this nozzle from helical blade upper surface ejection highly pressurised liquid, and then rush the broken soil body that is attached to this helical blade upper surface, prevent from embracing and bore.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the below will do to introduce simply to the accompanying drawing of required use in the embodiment of the invention, apparently, below described accompanying drawing only be some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the lateral view of the drill bit of one embodiment of the invention.
Fig. 2 is the top view of the drill bit of one embodiment of the invention.
Fig. 3 is the lateral view of the drill bit of another embodiment of the present invention.
Fig. 4 is the top view of the drill bit corresponding with injector configuration mode shown in Figure 3.
Fig. 5 is the top view of the drill bit of another embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work should belong to the scope of protection of the invention.
Fig. 1 is the lateral view of the drill bit of one embodiment of the invention.The drill bit 10 of Fig. 1 comprises drilling rod 11, is arranged on helical blade 12 and apex point 13 on the drilling rod, be provided with the high-voltage tube 14 of conveying high-pressure liquid in the drilling rod 11, and the opening of high-voltage tube 14 is arranged on the top of drilling rod 11; The upper surface of helical blade 12 is provided with a plurality of nozzles 15 that are communicated with high-voltage tube 14.
In embodiments of the present invention, by high-voltage tube is set in drilling rod, and the nozzle that is connected with this high-voltage tube in the upper surface setting of helical blade, thereby can be by this nozzle from helical blade upper surface ejection highly pressurised liquid, and then rush the broken soil body that is attached to this helical blade upper surface, prevent from embracing and bore.
Further, this drill bit can be sprayed water in creeping into clay stratum, sandy gravel and firm hard formation or be sprayed mud, play lubricated drill bit and reduce ground layer soil body friction to the bond stress of drill bit, and utilize from the high pressure liquid stream of nozzle ejection impact, the drill bit soil body in the cutting, fragmentation, fricative high temperature when creeping into water or mud reduction drill bit simultaneously reduces the drill bit loss and improves drilling efficiency.
Further, can set up on ground large flow slush pump or HP jetting pump, at long screw auger driver drilling rod top high-pressure water tap is set again, water in pulping bucket or mud pit or mud are utilized high-pressure water delivery or the grout pipe line of laying in the central tube of long screw auger tool, nozzle by the drill bit setting sprays outward, the water that ejects or mud rise along borehole wall at the bottom of the hole more gradually, naturally overflow the aperture and flow into (or entering near the mud sump) in pulping bucket or the mud pit, creep into until drill bit passes clay stratum and firm hard formation can termination of pumping stop water spray or spray mud as required.Adopt such normal circulation technology, so that long-spiral drilling machine becomes " wet method " pore-forming of mud off by dried pore-forming, boring is had the retaining wall effect, can improve the one-tenth porosity that sand-pebble layer etc. is difficult for the pore-forming stratum.
It should be noted that above-mentioned highly pressurised liquid can be water, also can be mud.
In embodiments of the present invention, the pressure of highly pressurised liquid can be set according to factors such as clay viscosity, and the embodiment of the invention is not done concrete restriction to this, generally can choose 5-20Mpa; This highly pressurised liquid can produce by extraneous HP jetting pump, and transfers to by extraneous high-pressure injection pipe in the high-voltage tube 14 of Fig. 1.
Should also be understood that in embodiments of the present invention helical blade can be fan blade type, also can be other arbitrary shape, and helical blade can be the single-screw blade, also can be the double helix blade, and the embodiment of the invention is not all done concrete restriction to this.
Need to prove, can be used in the general pore-forming technique according to the drill bit of the embodiment of the invention, also can be used in the rear slotting reinforcing cage technique.Particularly, in general pore-forming technique, above-mentioned high-voltage tube 14 can be set along the central axis of drilling rod 11; In rear slotting reinforcing cage technique, because drilling rod has been provided with the central tube of delivering concrete, it is inner that this high-voltage tube 14 can be arranged on this central tube, and separate by its outer wall and central tube, so that the conveying of concrete conveying and highly pressurised liquid does not interfere with each other.
Should understand, the embodiment of the invention is not done concrete restriction to the arrangement mode of a plurality of nozzles 15 of helical blade 12 upper surfaces, can arrange according to the concrete shape of helical blade 12 and the attachment characteristic of clay, as in the position of the easy stacked clay of helical blade or clay adhere to the large position of density more nozzle be set.
Alternatively, as an embodiment, a plurality of nozzles 15 of helical blade 12 upper surfaces are arranged along the spaced radial of described drilling rod 11 in the axis projection of drilling rod 11.Fig. 2 is the top view of the drill bit of one embodiment of the invention, and Fig. 2 shows a plurality of nozzles 15 of helical blade 12 upper surfaces along drilling rod 11 a kind of arrangement mode radially.A plurality of nozzles of radially arranging can rush the broken soil body that bores body that is attached to more up hill and dale, prevent from embracing and bore.
Alternatively, as another embodiment, a plurality of nozzles 15 of helical blade 12 upper surfaces are intervally arranged along the hand of spiral of helical blade 12.Fig. 3 is the lateral view of the drill bit of another embodiment of the present invention, and Fig. 3 shows a plurality of nozzles 15 of helical blade 12 upper surfaces along a kind of arrangement mode of the hand of spiral.Fig. 4 is the top view of the drill bit corresponding with injector configuration mode shown in Figure 3.
Alternatively, as another embodiment, a plurality of nozzles 15 of helical blade 12 upper surfaces are divided into many group nozzles, every group of nozzles in wherein should many group nozzles are arranged along the spaced radial of drilling rod 11 in the axis projection of drilling rod 11, and the hand of spiral along helical blade 12 is intervally arranged between every group of nozzle.Fig. 5 is the top view of the drill bit of another embodiment of the present invention, in Fig. 5, a plurality of nozzles 15 are divided into 151 to 154 totally 4 groups of nozzles, and every group of nozzle radially is intervally arranged in 4 groups of nozzles, are intervally arranged along circumferentially (being along the hand of spiral in stereogram) between group and the group.
Alternatively, as another embodiment, the soffit of helical blade 12 is provided with a plurality of nozzles 16 that are communicated with high-voltage tube 14.Certainly, the nozzle of the upper and lower surface of helical blade 12 can adopt identical or different arrangement, the factors such as the actual conditions that specifically can adhere to according to the upper and lower surface clay and cost are arranged, for example when upper surface adhered to clay with respect to soffit is easier, upper surface arranged more nozzle with respect to soffit.
Alternatively, as another embodiment, a plurality of nozzles 16 of helical blade 12 soffits are arranged symmetrically with the surface of a plurality of nozzles 15 relative helical blades of helical blade 12 upper surfaces, and for example, a plurality of nozzles 16 and a plurality of nozzles 15 are positioned at the right opposite of same helical blade.
Alternatively, as another embodiment, the side of helical blade 12 is provided with a plurality of nozzles 17 that are communicated with high-voltage tube 14, and a plurality of nozzles 17 of helical blade 12 sides are intervally arranged along the side of helical blade 12.
Alternatively, as another embodiment, the external surface of apex point 13 is provided with at least one nozzle 18 that is communicated with described high-voltage tube 14.The liquid of ejection can reduce the temperature of drill bit on the one hand on the apex point 13, on the other hand, can utilize the High Voltage of liquid to impact stratum to be bored, and reduces the resistance that creeps into.
Need to prove, the embodiment of the invention is not done concrete restriction to the structure of nozzle and the connected mode of nozzle and hollow section, alternatively, nozzle can adopt the 14mm(diameter) * 1.5mm(pitch) * 15mm(length) the hollow steel screw inlays nozzle (nozzle diameter is at 1.6mm-25mm), in addition send water or send the slurry steel pipe to offer the 14mm(diameter at the drill bit flabellum) * 1.5mm(pitch) behind the internal thread, nozzle is buckled tightly by spiral shell, such nozzle has flexibly characteristics of dismounting, can directly it be turned round down when nozzle damages, the nozzle that more renews gets final product; Certainly, alternatively, nozzle also can be one-body molded with drilling rod and drill bit.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (10)
1. the drill bit of a long-spiral drilling machine comprises drilling rod, apex point and is arranged on helical blade on the described drilling rod, it is characterized in that,
Be provided with the high-voltage tube of conveying high-pressure liquid in the described drilling rod, and the opening of described high-voltage tube is arranged on the top of described drilling rod;
The upper surface of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube.
2. drill bit as claimed in claim 1 is characterized in that, a plurality of nozzles of described helical blade upper surface spaced radial along described drilling rod in the axis projection of described drilling rod is arranged.
3. drill bit as claimed in claim 1 is characterized in that, a plurality of nozzles of described helical blade upper surface are intervally arranged along the hand of spiral of described helical blade.
4. drill bit as claimed in claim 1, it is characterized in that, a plurality of nozzles of described helical blade upper surface are divided into many group nozzles, every group of nozzle spaced radial along described drilling rod in the axis projection of described drilling rod in wherein said many group nozzles is arranged, and the hand of spiral along described helical blade is intervally arranged between described every group of nozzle.
5. such as each described drill bit among the claim 1-4, it is characterized in that the soffit of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube.
6. drill bit as claimed in claim 5 is characterized in that, a plurality of nozzles of described helical blade soffit are arranged symmetrically with the surface of the relative described helical blade of a plurality of nozzles of described helical blade upper surface.
7. such as each described drill bit among the claim 1-4, it is characterized in that the side of described helical blade is provided with a plurality of nozzles that are communicated with described high-voltage tube, and a plurality of nozzles of described helical blade side are intervally arranged along the side of described helical blade.
8. such as each described drill bit among the claim 1-4, it is characterized in that the external surface of described apex point is provided with at least one nozzle that is communicated with described high-voltage tube.
9. such as each described drill bit among the claim 1-4, it is characterized in that also be provided with in the described drilling rod for delivery of concrete central tube, wherein said high-voltage tube is positioned at described central tube, and mutually isolates with described central tube.
10. a long-spiral drilling machine is characterized in that, comprises the described drill bit such as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283553.8A CN103362461B (en) | 2013-07-08 | 2013-07-08 | Long-spiral drilling machine and drill bit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283553.8A CN103362461B (en) | 2013-07-08 | 2013-07-08 | Long-spiral drilling machine and drill bit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362461A true CN103362461A (en) | 2013-10-23 |
| CN103362461B CN103362461B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310283553.8A Expired - Fee Related CN103362461B (en) | 2013-07-08 | 2013-07-08 | Long-spiral drilling machine and drill bit thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104074462A (en) * | 2014-06-13 | 2014-10-01 | 上海市机械施工集团有限公司 | Drilling hole forming internal screw rod slurry hoisting system |
| CN104234042A (en) * | 2014-07-24 | 2014-12-24 | 王继忠 | Concrete pile forming device and construction method thereof |
| CN104453723A (en) * | 2014-12-02 | 2015-03-25 | 江西中恒岩土工程技术有限公司 | Pore-forming construction method by mixing high pressure water with air in long screw pile in high clay layer |
| CN105220685A (en) * | 2015-09-29 | 2016-01-06 | 中冶集团武汉勘察研究院有限公司 | The deep-mixing pile driver construction method of drilling tool and application drilling tool |
| CN105256795A (en) * | 2015-10-21 | 2016-01-20 | 江国华 | End support type thread core composite pile and construction device and method for end support type thread core composite pile |
| CN109024554A (en) * | 2018-06-15 | 2018-12-18 | 青岛理工大学 | The construction method of double high-pressure stirring-spraying pile water-stop curtains |
| CN111648427A (en) * | 2020-04-22 | 2020-09-11 | 中建市政工程有限公司 | High-pressure rotary-spraying sand-sucking desilting construction system and construction method thereof |
| KR20230097227A (en) * | 2021-12-06 | 2023-07-03 | 주식회사 신창이엔씨 | Auger apparatus for ground amelioration and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104074462A (en) * | 2014-06-13 | 2014-10-01 | 上海市机械施工集团有限公司 | Drilling hole forming internal screw rod slurry hoisting system |
| CN104234042A (en) * | 2014-07-24 | 2014-12-24 | 王继忠 | Concrete pile forming device and construction method thereof |
| CN104453723A (en) * | 2014-12-02 | 2015-03-25 | 江西中恒岩土工程技术有限公司 | Pore-forming construction method by mixing high pressure water with air in long screw pile in high clay layer |
| CN105220685A (en) * | 2015-09-29 | 2016-01-06 | 中冶集团武汉勘察研究院有限公司 | The deep-mixing pile driver construction method of drilling tool and application drilling tool |
| CN105256795A (en) * | 2015-10-21 | 2016-01-20 | 江国华 | End support type thread core composite pile and construction device and method for end support type thread core composite pile |
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| CN109024554A (en) * | 2018-06-15 | 2018-12-18 | 青岛理工大学 | The construction method of double high-pressure stirring-spraying pile water-stop curtains |
| CN111648427A (en) * | 2020-04-22 | 2020-09-11 | 中建市政工程有限公司 | High-pressure rotary-spraying sand-sucking desilting construction system and construction method thereof |
| CN111648427B (en) * | 2020-04-22 | 2022-03-29 | 中建市政工程有限公司 | High-pressure rotary-spraying sand-sucking desilting construction system and construction method thereof |
| KR20230097227A (en) * | 2021-12-06 | 2023-07-03 | 주식회사 신창이엔씨 | Auger apparatus for ground amelioration and construction method thereof |
| KR102561016B1 (en) * | 2021-12-06 | 2023-07-28 | 주식회사 신창이엔씨 | Auger apparatus for ground amelioration and construction method thereof |
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