CN2352664Y - Taper type spiral drilling bit - Google Patents
Taper type spiral drilling bit Download PDFInfo
- Publication number
- CN2352664Y CN2352664Y CN 98239460 CN98239460U CN2352664Y CN 2352664 Y CN2352664 Y CN 2352664Y CN 98239460 CN98239460 CN 98239460 CN 98239460 U CN98239460 U CN 98239460U CN 2352664 Y CN2352664 Y CN 2352664Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cone
- guider
- bevel
- utility
- 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 relates to a hole-making tool of supporting an anchor rod of a pit in the rock engineering construction of architecture trades, particularly a drill bit. The utility model is characterized in that the front end of the drill bit connected with a drill rod is fixedly connected with a pointed cone-shaped guider which is provided with a cone body formed by welding 1 to 6 reinforcing steel bars, and the front end of the cone body forms a pointed cone shape. The utility model effectively overcomes the unfavorable phenomena that a duck mouth-shaped spiral drill bit encounters hard objects to upwards float and the torque of the drill rod is large to break. The front part of the drill bit is provided with a cone-shaped guider, so the drill bit is used for drilling along a fixed direction. The torque of the drill rod is reduced, so the aim of effective drilling is achieved, and the work efficiency can be enhanced by 3 to 4 times.
Description
The utility model relates to the support anchor rod pore-forming instrument of foundation ditch in the building trade geotechnical engineering construction, specifically a kind of drill bit.
When the sand ground anchor is constructed, adopt the conventional method can not pore-forming, unique feasible way is to adopt the self-drilling drill bit.At sand-pebble layer, people generally use the duck-beak type augers, and this drill bit is for the not high medium coarse sand stratum of compactness, and is very effective really.But higher for compactness, and be the stratum of circle gravel or cobble, occur following several problems in drilling process: speed is slow or meet big footpath gravel and can't creep into; Torque is big, and drilling rod twists off; Float on the drilling rod, anchor pole can not be by the angle construction of designing requirement.
The purpose of this utility model is the shortcoming at above-mentioned existence, provides a kind of when sand ovum ground anchor is constructed, pore-forming efficiency height, the bevel-type augers that is easy to creep into.
The utlity model has drilling rod, drill bit, it is characterized in that the affixed cone-shaped guider of the chisel edge that joins with drilling rod.Guider is that 1～6 reinforcing bar weldering system constitutes cone, and it is cone-shaped that front end is.When cone was 2～6 reinforcing bar weldering system formations, raft plate in its back-end was welded.
The bevel-type augers is realized its intended purposes because the particularity of drill bit can effectively be crept into.Utilize the guiding effect of guider, make cone enter into slit between the sandstone in advance, drive drilling rod and creep into together.
The bevel-type augers is that a kind of being applicable to do not got the drill bit that core creeps into comprehensively in the sand-pebble layer, and it has overcome the duck-beak type augers effectively and has floated and the big unfavorable phenomenon that occurs twisting off of drilling rod moment of torsion on meeting firmly.Research sums up a kind of new-type drill bit that is applicable to sandstone formations by experiment, and it has a bevel-type guider in the front portion of drill bit, thereby drill bit is crept into along a fixing direction; And reduce the drilling rod moment of torsion, thereby reach the purpose of effectively creeping into; Can improve 3～4 times of work efficiency.
Description of drawings:
Fig. 1 is one of embodiment of the present utility model (two cones that reinforcing bar weldering system constitutes) structural representation.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is two (cone that two reinforcing bars and raft plate weldering system constitute) structural representation of embodiment of the present utility model.
Fig. 4 is that the B of Fig. 3 is to view.
Fig. 5 is three (cone that three reinforcing bars and raft plate weldering system constitute) structural representation of embodiment of the present utility model.
Fig. 6 is that the C of Fig. 5 is to view.
Fig. 7 is four (cone that four reinforcing bars and raft plate weldering system constitute) structural representation of embodiment of the present utility model.
Fig. 8 is that the D of Fig. 7 is to view.
Fig. 9 is five (cone that two reinforcing bars and raft plate constitute in same face bonding system) schematic diagram of embodiment of the present utility model.
Figure 10 is that the E of Fig. 9 is to view.
Figure 11 is six (four reinforcing bars and raft plate constitute cone, and wherein two reinforcing bars are welded on the raft plate wing rafter) structural representation of embodiment of the present utility model.
Figure 12 is that the F of Figure 11 is to view.
Figure 13 is seven (three stupefied awls and body of rod welding) structural representation of embodiment of the present utility model.
Figure 14 is that the G of Figure 13 is to view.
Figure 15 is eight (four stupefied awls and body of rod welding) structural representation of embodiment of the present utility model.
Figure 16 is that the H of Figure 15 is to view.
The bevel-type augers adopts Φ 73 geologic drilling rods, and long 1m is welded with helical blade spacing 100mm outside drilling rod, at chisel edge guider is housed.Guider is different and different according to reservoir sand ovum gravel footpath size and compaction rate.Anchor bolt construction applicable to any sand ovum gravel stratum.Guider also can adopt three stupefied cones (4), four stupefied cones (5).
The basic goal of this drill bit is the drilling efficiency that improves in sand ovum stratum, solves the unfavorable factor in creeping into, and this is to effectively creeping into purpose.
Drill bit can be divided into eight kinds of following three major types by its form.
(1) guider directly is made up of two reinforcing bars or equivalent material awl.
Guider is installed two reinforcing bars (1) or similar material composition (see figure 1) at the augers front end.And forge pointed cone at front end, form cone, and, be welded on then on the conveyor screw (3) with two root beads together, form a bevel-type augers.
(2) guider is made up of a guiding raft plate and guiding awl.
The bevel-type guider is formed (see figure 3) by a guiding raft plate (2) and two reinforcing bars (1) or equivalent material, reinforcing bar or similar material is welded on the guiding raft plate, and vertical with the raft board plane.Be soldered to together afterwards on the screw cone (3), form the bevel-type augers.
The bevel-type guider is formed (see figure 7) by a guiding raft plate (2) and four reinforcing bars (1) or equivalent material, and four reinforcing bars or equivalent material are distributed on the conveyor screw drilling rod, and form a kind of bevel-type augers with the raft plate is welded together with augers by two.
The bevel-type guider is formed (see figure 5) by a guiding raft plate (2) and three reinforcing bars (1) or equivalent material, and three reinforcing bars or equivalent material are distributed on the augers body of rod, wherein one welded together with the raft plate, form a kind of three stupefied bevel-type augers jointly.
The bevel-type guider is formed (see figure 9) by a guiding raft plate (2) and two reinforcing bars (1) or equivalent material, and two reinforcing bars or equivalent material are welded on the conveyor screw body of rod, and with the raft plate in one plane.Constitute a kind of plate-and-cone augers with conveyor screw.
The bevel-type guider is formed (seeing Figure 11) by a guiding raft plate (2) and four reinforcing bars (1) or equivalent material, two reinforcing bars or equivalent material are welded on the raft plate wing rafter, other two root beads are on screw rod body, and are orthogonal in twos, constitute a kind of four stupefied bevel-type augers.
(3) guider is had three stupefied or four stupefied cones and constitutes through forging to form by steel.
The bevel-type guider forms a kind of three stupefied awls (seeing Figure 13) by steel through forging, and makes a kind of bevel-type augers of three stupefied awls and screw rod body formation welded together.
The bevel-type guider forms a kind of four stupefied awls (seeing Figure 15) by steel through forging, and makes a kind of bevel-type augers of four stupefied awls and screw rod body formation welded together.
More than eight kinds of drill bits have the efficient height, low cost and other advantages, but all processing and manufacturings at the construction field (site) are a kind of very effective instruments of sand ovum gravel ground anchor construction.
Using method:
The bevel-type augers is mainly used in deep foundation ditch anchoring anchor bolt construction.During construction, the bevel-type augers with processing is installed on the drilling rod.Rig is in place, to good anchor pole position, drilling rod is installed on the rig together with the bevel-type augers.Give and to establish beginning boring by cable, when beginning, give the too big power that feeds, and note the situation of creeping into of drill bit at any time, strengthen again later on and feed power,, finish the construction of an anchor pole up to creeping into projected depth when drill bit all enters into the stratum.
Claims (3)
1. a bevel-type augers has drilling rod, drill bit, it is characterized in that the affixed cone-shaped guider of the chisel edge that joins with drilling rod, and guider is that 1～6 reinforcing bar (1) weldering system constitutes cone, and it is cone-shaped that front end is.
2. according to the described bevel-type augers of claim 1, it is characterized in that raft plate (2) in its back-end is welded when cone is 2～6 reinforcing bars (1) weldering system formation.
3. according to the described bevel-type augers of claim 1, it is characterized in that guider also can adopt three stupefied cones (4), four stupefied cones (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239460 CN2352664Y (en) | 1998-11-25 | 1998-11-25 | Taper type spiral drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239460 CN2352664Y (en) | 1998-11-25 | 1998-11-25 | Taper type spiral drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2352664Y true CN2352664Y (en) | 1999-12-08 |
Family
ID=33986827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98239460 Expired - Fee Related CN2352664Y (en) | 1998-11-25 | 1998-11-25 | Taper type spiral drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2352664Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821068B (en) * | 2007-11-06 | 2013-05-29 | 罗伯特·博世有限公司 | Auger bit including reamer and manufacture method thereof |
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
-
1998
- 1998-11-25 CN CN 98239460 patent/CN2352664Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821068B (en) * | 2007-11-06 | 2013-05-29 | 罗伯特·博世有限公司 | Auger bit including reamer and manufacture method thereof |
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
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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 |