CN2236377Y - Drill tip for piling - Google Patents
Drill tip for piling Download PDFInfo
- Publication number
- CN2236377Y CN2236377Y CN 96202873 CN96202873U CN2236377Y CN 2236377 Y CN2236377 Y CN 2236377Y CN 96202873 CN96202873 CN 96202873 CN 96202873 U CN96202873 U CN 96202873U CN 2236377 Y CN2236377 Y CN 2236377Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- bit
- cylindrical shell
- kelly bar
- flank sheet
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a drill bit for gourd piles, comprising a kelly bar and a bit. The utility model is characterized in that a bit body is a barrel body whose inner wall is provided with two through-going shafts. The top of the kelly bar is connected with the drill rod of a drill, and the bottom is inserted in the bit barrel body; the kelly bar is provided with an adjusting clamp. The kelly bar in the bit body is provided with a fixing clamp whose two ends are symmetrically provided with side vane sheet blades. The middle parts of the side vane sheets are provided with splayed connecting rods. The lower part of the bit barrel body is provided with a triblade scraper to form a bit. The drill bit for gourd piles of the utility model is suitable for adopting positive and reverse circulation drills to drill into the gourd piles.
Description
The utility model belongs to the construction machine accessory, especially for the target drill in pile foundation engineering pile hole.
The drill bit that is used to make the rig of buried concrete placing stake is generally three wings drag bit and club-footed pile drill bit, and these two kinds of drill bits respectively can the columniform concrete placing stake of moulding or the club-footed pile that enlarges in the stake bottom.Chinese patent in the application " Bottle gourd pile ", application number: 96200086.8, needing during this pile driving construction to creep into simultaneously again can counterboring, as uses above-mentioned drill bit often then to need more bit change, influence construction speed, the reduction work efficiency.
The purpose of this utility model is, designs a kind of novel working Bottle gourd pile drill bit of Bottle gourd pile that is applicable to, the function that this drill bit will have drill bit unites two into one, and both can creep into, simultaneously again can reaming, play an effect of boring first two function.
Bottle gourd pile drill bit of the present utility model, form by kelly bar, bit body, it is characterized in that: bit body is the cylindrical body of both sides band gap, cylindrical shell middle part is departed from the center and is provided with two of being fixed on the barrel and runs through axle, the kelly bar upper end is connected with borer drill rod by ring flange, the lower end is inserted in the drill bit cylindrical shell and is connected with suction hose, and the kelly bar on drill bit cylindrical shell top is provided with the adjustment clamp that can regulate the drilling rod displacement; Kelly bar in the bit body is provided with fixation clamp, be symmetrical arranged the flank sheet at the two ends of clamp, flank sheet lower end is provided with scraper, at the middle part of flank sheet Eight characters connecting rod is set, one end of connecting rod and flank sheet middle part are hinged, and the other end is connected respectively to running through on the axle on the barrel; Be provided with three groups of rectangle reaction plates in drill bit cylindrical shell bottom, form drill bit at cylindrical shell and reaction plate place welding three wings scraper.
The angle at described fin and drilling rod center is 10 °～30 °.
Described Eight characters connecting rod is regular splayed, and the flank sheet is arranged on the center of running through axle.
Described Eight characters connecting rod is an in-line, and the one end is connected the middle part of fin, and the other end is connected on the position of running through that axle is gone up or fixing with cylindrical shell.
The angle of described flank sheet scraper is 90 °～120 °.
The working method of Bottle gourd pile drill bit of the present utility model is, when drilling rod was worked downwards, kelly bar moved downward, and the flank sheet is opened, and the Eight characters connecting rod in the cylindrical shell is propped up, and the flank sheet play expand the cucurbit effect; When drilling rod upwards moves, cylindrical shell inside connecting rod contraction side fin, the drag bit that three fins in cylindrical shell bottom form works the effect of creeping into; When being drilled into certain thickness supporting course, stop to creep into, press down drilling rod, the cylindrical shell inside connecting rod promptly expands outwardly, the flank sheet promptly enter hole wall a little, rotary drill rod promptly plays the reaming effect, when becoming the cucurbit tripe, carry drilling rod again, begin to creep into, at the bottom of the hole during supporting course, press down the drilling rod reaming again, until becoming the Bottle gourd pile hole.
Bottle gourd pile drill bit of the present utility model, because kelly bar is provided with the adjusting clamp that can regulate the drilling rod displacement, the big I of reaming is selected arbitrarily; The angle of the scraper that flank sheet bottom is provided with can be selected arbitrarily, can make the reaming alteration of form; Eight characters connecting rod on the flank sheet can make the flank scraper use flexibly.Its advantage also has: moulding is once crept in Bottle gourd pile stake hole, and boring is shaped, and rounding is vertical; The drilling efficiency height is removed the bit change time from, saves labour, man-hour, can improve drilling efficiency more than one times; Three-wing bit and bottom expanding drill are united two into one, reduce number of devices, reduce investment.
Bottle gourd pile drill bit of the present utility model is applicable to and adopts positive and negative circulation drilling machine, creeps into Bottle gourd pile.
Below in conjunction with drawings and Examples the Bottle gourd pile drill bit is described further.
Fig. 1 is the planform schematic diagram of Bottle gourd pile drill bit
Fig. 2 is the diagrammatic sketch of bowing of Fig. 1
As can be seen, a kind of Bottle gourd pile drill bit, form by kelly bar, bit body, it is characterized in that: bit body 1 is the cylindrical body of both sides band gap, cylindrical shell middle part is departed from the center and is provided with two of being fixed on the barrel and runs through axle 11, kelly bar 2 upper ends are connected with borer drill rod 4 by ring flange 3, and the lower end is inserted in the drill bit cylindrical shell and is connected with suction hose 5, and the kelly bar on drill bit cylindrical shell top is provided with the adjustment clamp 6 that can regulate the drilling rod displacement; Kelly bar in the bit body is provided with fixation clamp 7, be symmetrical arranged flank sheet 8 at the two ends of clamp, flank sheet lower end is provided with scraper 9, irregular Eight characters connecting rod 10 is set at the middle part of flank sheet, one end of connecting rod and flank sheet middle part are hinged, and the other end is connected respectively to running through on the axle 11 on the barrel; In drill bit cylindrical shell lower horizontal three groups of rectangle reaction plates 12 are set, form drill bit at cylindrical shell and reaction plate place welding three wings scraper 13.
Claims (5)
1, a kind of Bottle gourd pile drill bit, form by kelly bar, bit body, it is characterized in that: bit body is the cylindrical body of both sides band gap, cylindrical shell middle part is departed from the center and is provided with two of being fixed on the barrel and runs through axle, the kelly bar upper end is connected with borer drill rod by ring flange, the lower end is inserted in the drill bit cylindrical shell and is connected with suction hose, and the kelly bar on drill bit cylindrical shell top is provided with the adjustment clamp that can regulate the drilling rod displacement; Kelly bar in the bit body is provided with fixation clamp, be symmetrical arranged the flank sheet at the two ends of clamp, flank sheet lower end is provided with scraper, at the middle part of flank sheet Eight characters connecting rod is set, one end of connecting rod and flank sheet middle part are hinged, and the other end is connected respectively to running through on the axle on the barrel; Be provided with three groups of rectangle reaction plates in drill bit cylindrical shell bottom, form drill bit at cylindrical shell and reaction plate place welding three wings scraper.
2, Bottle gourd pile drill bit as claimed in claim 1 is characterized in that: the angle at described fin and drilling rod center is 10 °～30 °.
3, Bottle gourd pile drill bit as claimed in claim 1 is characterized in that: described Eight characters connecting rod is regular splayed, and the flank sheet is arranged on the center of running through axle.
4, Bottle gourd pile drill bit as claimed in claim 1 is characterized in that: described Eight characters connecting rod is an in-line, and the one end is connected the middle part of fin, and the other end is connected on the position of running through that axle is gone up or fixing with cylindrical shell.
5, Bottle gourd pile drill bit as claimed in claim 1 is characterized in that: the angle of described flank sheet scraper is 90 °～120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202873 CN2236377Y (en) | 1996-02-14 | 1996-02-14 | Drill tip for piling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202873 CN2236377Y (en) | 1996-02-14 | 1996-02-14 | Drill tip for piling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2236377Y true CN2236377Y (en) | 1996-10-02 |
Family
ID=33888660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96202873 Expired - Fee Related CN2236377Y (en) | 1996-02-14 | 1996-02-14 | Drill tip for piling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2236377Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477846A (en) * | 2010-11-27 | 2012-05-30 | 中铁西北科学研究院有限公司 | Soil-layer broaching bit |
| CN103603600A (en) * | 2013-11-22 | 2014-02-26 | 山东大学 | Three-dimensional positioning controllable excavating device and three-dimensional positioning controllable excavating method for simulating karst caves in model test |
| CN109944227A (en) * | 2019-04-16 | 2019-06-28 | 新疆北新路桥集团股份有限公司 | A kind of Pear-Shaped pile body and its pile making method |
-
1996
- 1996-02-14 CN CN 96202873 patent/CN2236377Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477846A (en) * | 2010-11-27 | 2012-05-30 | 中铁西北科学研究院有限公司 | Soil-layer broaching bit |
| CN103603600A (en) * | 2013-11-22 | 2014-02-26 | 山东大学 | Three-dimensional positioning controllable excavating device and three-dimensional positioning controllable excavating method for simulating karst caves in model test |
| CN103603600B (en) * | 2013-11-22 | 2015-11-25 | 山东大学 | For the controlled excavating device of three-dimensional localization and the method for the simulation of model testing solution cavity |
| CN109944227A (en) * | 2019-04-16 | 2019-06-28 | 新疆北新路桥集团股份有限公司 | A kind of Pear-Shaped pile body and its pile making method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204627413U (en) | A kind of Counterboring apparatus for reaming rig | |
| CN110043187A (en) | The fluid pressure type reducing reaming bit and filling pile construction engineering method of long-spiral drilling machine | |
| CN203080513U (en) | Multi-axis interchangeable-type cement-soil mixing pile device capable of reducing soil compaction property | |
| CN206591523U (en) | A kind of foundation engineering special efficient Grouting Pipe | |
| CN2288261Y (en) | Dual-purpose drilling broaching bit controlled by centrifugal wings | |
| CN106192996B (en) | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake | |
| CN114687352B (en) | Self-stabilizing type broken line sheet pile wall structure | |
| CN2236377Y (en) | Drill tip for piling | |
| CN210530738U (en) | Pile system is planted in drilling in groups | |
| CN110529041B (en) | Self-soil-taking type double-layer full casing pipe for inclined pile hole forming and construction method thereof | |
| CN2242267Y (en) | Hole formation device for composite changed section pile | |
| CN216076982U (en) | Noise-reduction rotary drilling bit capable of rapidly unloading soil | |
| CN115110897A (en) | Inclined shaft drilling machine for pressure pipeline construction integrated directional reverse shaft | |
| CN214033711U (en) | Rotary drilling bit for removing waste pile | |
| CN210530745U (en) | Combined drilling bottom-expanding pile-planting system | |
| CN212477725U (en) | Pile machine of split combined type full-pile casing | |
| CN204402365U (en) | A kind of long-spiral drilling machine expansion bit | |
| CN204646109U (en) | Circular bore expands drill with ferrule tool | |
| CN110952532B (en) | Sliding type blade bottom expanding tubular pile | |
| CN102635114A (en) | Bottom-expanding filling pile and piling method of bottom-expanding filling pile | |
| CN2262096Y (en) | Multiple adaptive bottom enlarging drill bit | |
| CN205823213U (en) | A kind of drilling rig for deep-well dry method pore-forming | |
| CN201003375Y (en) | Concrete filling pile machine boring bar head | |
| CN215804376U (en) | Drilling and reaming drilling tool convenient for high-pressure grouting | |
| CN214061615U (en) | Special pile feeding device for precast pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |