CN2729292Y - Bit for pile drilling machine - Google Patents
Bit for pile drilling machine Download PDFInfo
- Publication number
- CN2729292Y CN2729292Y CN 200420074886 CN200420074886U CN2729292Y CN 2729292 Y CN2729292 Y CN 2729292Y CN 200420074886 CN200420074886 CN 200420074886 CN 200420074886 U CN200420074886 U CN 200420074886U CN 2729292 Y CN2729292 Y CN 2729292Y
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- CN
- China
- Prior art keywords
- drill bit
- blade
- vanes
- layer
- rod
- 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
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Abstract
The utility model discloses a drill bit for a pile drilling machine, comprising a rod body with a grout channel, a drill tip which is arranged on the lower part of the rod body, upper-layer vanes and lower-layer vanes which are arranged along the axial direction of the rod body, and the grout outlets which are arranged on the lower part of the rod body and are communicated with the grout channel; the lower-layer vanes are inclined upwardly along the radial direction; the upper-layer vanes are horizontally arranged; a helical flute is arranged on the drill tip; the top edges of the upper-layer vanes and the lower-layer vanes are provided with arc-shaped structures, and a plurality of saw teeth are respectively arranged on the double sides of the top edges of the upper-layer vanes and the lower-layer vanes. The advantages of the utility model are that: the drill bit for the pile drilling machine adopts the above technical scheme; the drilling resistance force is made to be small, and the efficiency is high; the blade surfaces of the vanes are arranged as screw surfaces, and a plurality of pyramid convexities are evenly distributed on each blade surface along the shaft line; the pulverizing and agitating abilities of the drill bit to the soil blocks are improved, the sufficient and homogeneous mixing of the slurry and the soil can be promoted, and the quality of the pile body can be guaranteed.
Description
Technical field:
The utility model relates to Piling drilling rig for building, relates to be used for the drill bit of Piling drilling rig specifically.
Background technology:
Piling drilling rig is the special equipment of building site piling usefulness, boring, whitewashing, piling one-shot forming, and the efficient height has irreplaceable effect in construction work.But present employed Piling drilling rig drill bit, its blade are horizontal symmetrical to be arranged on the body of rod of drill bit, becomes 90 degree angles with the body of rod.Resistance was big when existing deficiency was boring, and power consumption is high; The soil that gets out can not get good pulverizing, and it is inhomogeneous to make when whitewashing is stirred that slurries mix with soil, and the quality of pile of getting can not get assurance, has directly influenced the quality of construction work.
Summary of the invention:
The purpose of the utility model is not enough at above-mentioned existing in prior technology and the drill bit that is used for Piling drilling rig that resistance is little, whitewashing stirs when a kind of boring is provided.
For achieving the above object, the utility model can be achieved through the following technical solutions:
The drill bit that is used for Piling drilling rig described in the utility model, comprise the body of rod that has grouting channel, be arranged on the apex point of described body of rod bottom, with the two-layer blade up and down that axially is provided with along the body of rod, and be opened in the grout outlet that is connected with described grouting channel of body of rod bottom, the setting that radially is inclined upwardly of described lower leave; Described upper strata blade is for being horizontally disposed with; Described apex point is provided with helicla flute; The edge, top of described levels blade is an arc-shaped structure, is respectively arranged with a plurality of sawtooth on its dual-side.
The blade face of described levels blade is respectively helicoid, is evenly equipped with a plurality of pyramid projectioies at each its axis of upper edge, blade face.
The top of described sawtooth is a parabolic shape; Each sawtooth reverses setting along axis separately.
The inclination angle that described lower leave makes progress is 30 degree.
Advantage of the present utility model is to have adopted technique scheme, and the lower leave extension that is inclined upwardly from body of rod junction forms angle with horizontal plane, and resistance is little when holing like this, the efficient height; The blade face of blade is set to helicoid, and on the dual-side of blade, be respectively arranged with the sawtooth that a plurality of tops are parabolic shape, and each sawtooth reverses setting along separately axis, and then has reduced the resistance in the piling boring procedure widely, has saved power.Owing to be evenly equipped with a plurality of pyramid projectioies at each its axis of upper edge, blade face, improved greatly that drill bit has promoted slurries and native full and uniform the mixing to pulverizing, the stirring capacity of soil block in boring procedure, guaranteed pile quality.
Description of drawings:
Fig. 1 is a front view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
The specific embodiment:
As shown in the figure, the drill bit that is used for Piling drilling rig described in the utility model, comprise the body of rod 2 that has grouting channel 1, be arranged on the apex point 3 of the described body of rod 2 bottoms, with the two- layer blade 4,5 up and down that axially is provided with along the body of rod 2, and being opened in the grout outlet 6 that is connected with described grouting channel 1 of the body of rod 2 bottoms, described lower leave 5 30 degree that radially are inclined upwardly are provided with; Described upper strata blade 4 is for being horizontally disposed with; Described apex point 3 is provided with helicla flute 7; The edge, top of levels blade 4,5 is set to arc-shaped structure, is respectively arranged with a plurality of sawtooth 8 on its dual-side.The top of described sawtooth 8 is a parabolic shape, and each sawtooth 8 reverses setting along axis separately.The blade face of levels blade 4,5 is set to helicoid respectively, and is evenly equipped with a plurality of pyramid projectioies 9 at each its axis of upper edge, blade face.
Claims (4)
1, a kind of drill bit that is used for Piling drilling rig, comprise the body of rod (2) that has grouting channel (1), be arranged on the apex point (3) of the described body of rod (2) bottom, with the two-layer blade (4,5) up and down that axially is provided with along the body of rod (2), and be opened in the grout outlet (6) that is connected with described grouting channel (1) of the body of rod (2) bottom, it is characterized in that: described lower leave (5) setting that radially is inclined upwardly; Described upper strata blade (4) is for being horizontally disposed with; Described apex point (3) is provided with helicla flute (7); The edge, top of described levels blade (4,5) is an arc-shaped structure, is respectively arranged with a plurality of sawtooth (8) on its dual-side.
2, Piling drilling rig drill bit according to claim 1 is characterized in that: the blade face of described levels blade (4,5) is respectively helicoid, is evenly equipped with a plurality of pyramid projectioies (9) at each its axis of upper edge, blade face.
3, Piling drilling rig drill bit according to claim 1 and 2 is characterized in that: the top of described sawtooth (8) is a parabolic shape; Each sawtooth (8) reverses setting along axis separately.
4, Piling drilling rig drill bit according to claim 1 is characterized in that: the inclination angle that described lower leave (4,5) makes progress is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074886 CN2729292Y (en) | 2004-10-20 | 2004-10-20 | Bit for pile drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074886 CN2729292Y (en) | 2004-10-20 | 2004-10-20 | Bit for pile drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729292Y true CN2729292Y (en) | 2005-09-28 |
Family
ID=35048069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074886 Expired - Fee Related CN2729292Y (en) | 2004-10-20 | 2004-10-20 | Bit for pile drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729292Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233473A (en) * | 2013-04-18 | 2013-08-07 | 河南博特工程防护有限公司 | Polymer multi-edge pile grouting method |
| CN103437712B (en) * | 2013-08-23 | 2015-11-25 | 中国建筑一局(集团)有限公司 | A kind ofly be applicable to the three axle mixer drill bits penetrating gravel layer soil property |
-
2004
- 2004-10-20 CN CN 200420074886 patent/CN2729292Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233473A (en) * | 2013-04-18 | 2013-08-07 | 河南博特工程防护有限公司 | Polymer multi-edge pile grouting method |
| CN103233473B (en) * | 2013-04-18 | 2016-05-25 | 河南博特工程防护有限公司 | Many ribs of high polymer stake grouting method |
| CN103437712B (en) * | 2013-08-23 | 2015-11-25 | 中国建筑一局(集团)有限公司 | A kind ofly be applicable to the three axle mixer drill bits penetrating gravel layer soil property |
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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 |