CN1303308C - Earth auger of making concrete pile - Google Patents
Earth auger of making concrete pile Download PDFInfo
- Publication number
- CN1303308C CN1303308C CNB031228186A CN03122818A CN1303308C CN 1303308 C CN1303308 C CN 1303308C CN B031228186 A CNB031228186 A CN B031228186A CN 03122818 A CN03122818 A CN 03122818A CN 1303308 C CN1303308 C CN 1303308C
- Authority
- CN
- China
- Prior art keywords
- hollow drill
- concrete pile
- urceolus
- drilling machine
- spiral drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 44
- 238000000465 moulding Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011083 cement mortar Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The present invention relates to a spiral drill for forming concrete piles, which comprises a drilling tool provided with a hollow drill rod with spiral blades, wherein a drill bit provided with a lower discharge port is arranged at the lower end of the hollow drill rod, and an outer drum which is coaxial to the hollow drill rod is arranged at the upper part of the hollow drill rod and is connected with the hollow drill rod in a closed mode. The upper parts of the spiral blades are fixed outside the outer drum, and a plurality of upper discharge ports distributed uniformly are arranged at the lower part of the outer drum. The present invention has simple structure without installing a device for supplying cement mortar, and thus, simplifies technologies and prevents collapse. The present invention can be used for construction conveniently with high quality under various geological conditions, and can meet building design, save the quantity of concrete and reduce engineering cost.
Description
Technical field
The present invention relates to a kind of spiral drilling machine that is used for the moulding concrete pile.
Background technology
Along with the high speed development of building trade, construction work is more and more higher to the design and construction requirement of ground, so concrete pile obtains application more and more widely in engineerings such as highrise building, bridge, harbour and coastal waters building.In order to make concrete pile can satisfy architectural design requirements such as resistance to deformation, antidetonation, need the shape and structure of concrete pile is improved, make it have specific shape, the while can also meet design requirement and save concrete amount.At my Chinese patent, the patent No. is ZL02203243.6, name is called " spiral drilling machine that is used for the moulding concrete pile " and discloses a kind of spiral drilling machine, it is provided with interior Grouting Pipe in hollow drill, and the cement paste nozzle that is provided with of the screw blade bottom drilling tool is connected, the other end of interior Grouting Pipe is connected to outside flow inlet and cement slurrypump, utilizes the churning of cement paste nozzle to form the retaining wall of boring, thereby prevents the hole of collapsing of holing.The diameter of hollow drill equates up and down simultaneously, thereby the area on screw blade top is bigger.Such spiral drilling machine structure is comparatively complicated, and needs to be equipped with the equipment of a cover water supply mud.
Summary of the invention
The objective of the invention is to overcome above problem, provide a kind of simple in structure, need not to be equipped with the equipment of water supply mud, thereby simplified technology, and increase boring inwall soil compacted property, prevent the hole of collapsing, under various geological conditionss, can make things convenient for, construct in high quality, in the requirement of satisfying architectural design, save concrete consumption, and can reduce the spiral drilling machine that is used for the moulding concrete pile of construction costs.
For achieving the above object, the present invention is used for the spiral drilling machine of moulding concrete pile, comprise drilling tool, described drilling tool is provided with the hollow drill of band screw blade, the lower end of described hollow drill is the drill bit that is provided with lower discharge port, and the top of described hollow drill is provided with the urceolus coaxial with hollow drill, and described urceolus is connected with the hollow drill sealing, the top of described screw blade is fixed on the outside of urceolus, has several uniform top discharge mouths in the bottom of urceolus.
The present invention is used for the spiral drilling machine of moulding concrete pile, and wherein, the diameter of described urceolus and the diameter ratio of hollow drill are (1.2～8): 1.
The present invention is used for the spiral drilling machine of moulding concrete pile, and wherein, the bottom of described urceolus is at least one inversed taper platform shape, and the angle of the element of cone of described inversed taper platform shape and the central axis of hollow drill is 5～90 °.
The present invention is used for the spiral drilling machine of moulding concrete pile, and wherein, the diameter of the described screw blade at described inversed taper platform shape place reduces gradually along with reducing of described inversed taper platform shape cross-sectional diameter.
The present invention is used for the spiral drilling machine of moulding concrete pile, and wherein, the lower end of the diameter of described screw blade from the urceolus bottom to hollow drill reduces gradually.
The present invention is used for the spiral drilling machine of moulding concrete pile, and wherein, described top discharge mouth is two.
The present invention is used for the spiral drilling machine of moulding concrete pile, because the top overstriking of hollow drill, the area of screw blade diminishes thereupon, thereby increased compacted effect to soil, so borehole wall is difficult for falling soil when construction, thereby prevent the hole phenomenon of collapsing, and being provided with the top discharge mouth at the inversed taper platform shape middle part of hollow drill, discharging can produce the retaining wall effect to boring top when carrying brill.
Description of drawings
Fig. 1 is used for the schematic diagram of the spiral drilling machine of moulding concrete pile for the present invention;
Fig. 2 is the drilling tool schematic diagram of spiral drilling machine of the present invention;
Fig. 3 is the drill bit enlarged drawing of drilling tool;
Fig. 4 be the diameter of screw blade from the middle part to the lower end schematic diagram of gradually little drilling tool.
The specific embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
Figure 1 shows that the spiral drilling machine schematic diagram that is used for the moulding concrete pile of the present invention, spiral drilling machine comprises chassis 22, be arranged on the boring tower 24 on the chassis 22 and be installed in drilling tool 27 on the boring tower 24 by the jacking system on the boring tower 24 26, drilling tool 27 is provided with the hollow drill 4 of band screw blade 8, the top of hollow drill 4 is interconnected rotatably through the end of unit head 30 with concrete feeding pipe 32, the other end of concrete feeding pipe 32 is connected with concrete pump in order to supply with concrete in hollow drill, motor 31 drives unit head 30 by not shown reductor and rotates, and carries out bore operation thereby drive hollow drill 27 rotations; Drilling tool 27 as shown in Figure 2, the top of hollow drill 4 is provided with the urceolus 3 coaxial with hollow drill 4 in its outside, the bottom of urceolus 3 is an inversed taper platform shape, urceolus 3 is connected with hollow drill 4 sealings, have the top discharge mouth 5 of two symmetries in the bottom of urceolus, this top discharge mouth 5 also can be made as uniform more than three, the top of screw blade 8 is fixed on the outside of urceolus 3, the diameter of the screw blade 8 at inversed taper platform shape place reduces gradually along with reducing of inversed taper platform shape cross-sectional diameter, the lower end of hollow drill 4 is provided with drill bit 6, be provided with two lower discharge ports 7 in the lower end of described drill bit 6, drill bit 6 is seen Fig. 3, the form of structure of drill bit discharging opening can adopt the inventor's utility model patent, and the patent No. is ZL02203243.6, and name is called the form of structure of the drill bit discharging opening of " spiral drilling machine that is used for the moulding concrete pile "; Also can adopt the inventor's utility model patent, the patent No. is the form of structure of the drill bit discharging opening among the ZL96212544.X; Perhaps adopt following form of structure, Open Side Down for the valve plate of drill bit, and a side of valve plate and the tube wall of hollow drill are hinged, and the opposite side of valve plate and drill bit join with the magnet locking device.
The diameter ratio of the diameter of above-mentioned urceolus 3 and hollow drill 4 is (1.2～8): 1, and the bottom of urceolus 3 also can be made as the inversed taper platform shape more than two, and the angle of the element of cone of its inversed taper platform shape and the central axis of hollow drill is 5～90 °.
Figure 4 shows that the present invention is used for the another kind of form of drilling tool of the spiral drilling machine of moulding concrete pile, the lower end of the diameter of its screw blade from the urceolus bottom to hollow drill reduces gradually, other structure is all identical with previous embodiment, when adopting the spiral drilling machine of the drilling tool of this form to hole, increased the horizontal force of side direction, and increased resistance friction, more increased compacted property to the soil of borehole wall.
When using spiral drilling machine of the present invention to work, when making drilling tool be bored into projected depth, promote drilling tool, when promoting 20～30cm left and right sides, start concrete pump, the limit promotes drilling tool limit guncreting, from the discharging simultaneously of upper and lower discharging opening, when the urceolus with hollow drill proposes ground, close the top discharge mouth, continue the limit and promote hollow drill limit guncreting, until design height.
Claims (6)
1. spiral drilling machine that is used for the moulding concrete pile, comprise drilling tool, described drilling tool is provided with the hollow drill of band screw blade, the lower end of described hollow drill is the drill bit that is provided with lower discharge port, it is characterized in that: the top of described hollow drill is provided with the urceolus coaxial with hollow drill, described urceolus is connected with the hollow drill sealing, and the top of described screw blade is fixed on the outside of urceolus, has several uniform top discharge mouths in the bottom of urceolus.
2. the spiral drilling machine that is used for the moulding concrete pile as claimed in claim 1 is characterized in that: the diameter of described urceolus and the diameter ratio of hollow drill are (1.2～8): 1.
3. the spiral drilling machine that is used for the moulding concrete pile as claimed in claim 2 is characterized in that: the bottom of described urceolus is at least one inversed taper platform shape, and the angle of the element of cone of described inversed taper platform shape and the central axis of hollow drill is 5～90 °.
4. the spiral drilling machine that is used for the moulding concrete pile as claimed in claim 3 is characterized in that: the diameter of the described screw blade at described inversed taper platform shape place reduces gradually along with reducing of described inversed taper platform shape cross-sectional diameter.
5. the spiral drilling machine that is used for the moulding concrete pile as claimed in claim 3 is characterized in that: the lower end of the diameter of described screw blade from the urceolus bottom to hollow drill reduces gradually.
6. as claim 4 or the 5 described spiral drilling machines that are used for the moulding concrete pile, it is characterized in that: described top discharge mouth is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031228186A CN1303308C (en) | 2003-04-24 | 2003-04-24 | Earth auger of making concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031228186A CN1303308C (en) | 2003-04-24 | 2003-04-24 | Earth auger of making concrete pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540129A CN1540129A (en) | 2004-10-27 |
| CN1303308C true CN1303308C (en) | 2007-03-07 |
Family
ID=34321113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031228186A Expired - Fee Related CN1303308C (en) | 2003-04-24 | 2003-04-24 | Earth auger of making concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1303308C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775224A (en) * | 2017-03-08 | 2018-11-09 | 李海兰 | A kind of quick stake device processed of squelch type |
| CN108661576B (en) * | 2018-05-10 | 2019-11-08 | 中建八局轨道交通建设有限公司 | The hole-forming device and its construction method of soft soil layer cast-in-situ bored pile |
| CN110939395B (en) * | 2019-12-19 | 2025-01-28 | 中化地质矿山总局河北地质勘查院 | A variable diameter plain concrete pile construction equipment and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504173A (en) * | 1981-09-22 | 1985-03-12 | Dnepropetrovsky Inzhenerno-Stroitelny Institut | Apparatus for constructing cast in place tubular piles and method _of constructing such piles by same apparatus |
| CN2352663Y (en) * | 1998-09-02 | 1999-12-08 | 邱树军 | Rotary type protective sleeve double drilling apparatus |
| US6145601A (en) * | 1997-06-18 | 2000-11-14 | Techmo Entwicklungs-Und Vertriebs Gmbh | Method and device for boring holes |
| CN2540491Y (en) * | 2002-01-29 | 2003-03-19 | 何庆林 | Rotary drilling machine for mould concrete pile |
-
2003
- 2003-04-24 CN CNB031228186A patent/CN1303308C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504173A (en) * | 1981-09-22 | 1985-03-12 | Dnepropetrovsky Inzhenerno-Stroitelny Institut | Apparatus for constructing cast in place tubular piles and method _of constructing such piles by same apparatus |
| US6145601A (en) * | 1997-06-18 | 2000-11-14 | Techmo Entwicklungs-Und Vertriebs Gmbh | Method and device for boring holes |
| CN2352663Y (en) * | 1998-09-02 | 1999-12-08 | 邱树军 | Rotary type protective sleeve double drilling apparatus |
| CN2540491Y (en) * | 2002-01-29 | 2003-03-19 | 何庆林 | Rotary drilling machine for mould concrete pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1540129A (en) | 2004-10-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20110424 |