CN202000899U - Drill bit of rotary drilling rig - Google Patents
Drill bit of rotary drilling rig Download PDFInfo
- Publication number
- CN202000899U CN202000899U CN2011200850830U CN201120085083U CN202000899U CN 202000899 U CN202000899 U CN 202000899U CN 2011200850830 U CN2011200850830 U CN 2011200850830U CN 201120085083 U CN201120085083 U CN 201120085083U CN 202000899 U CN202000899 U CN 202000899U
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- China
- Prior art keywords
- drill
- drill bit
- leg
- stable
- abrasion
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- Expired - Fee Related
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Abstract
The utility model discloses a drill bit of a rotary drilling rig, which comprises a hollow rotary shaft, a round drill bit enclosure wall which is fixed on the circumference of the hollow rotary shaft through a plurality of reinforced ribs and at least three wing knives. One ends of the wing knives are fixed on the drill bit enclosure wall and radially and evenly distributed along an axle of the hollow rotary shaft, and the other ends get together. A circular stable enclosure wall fixed on the circumference of the hollow rotary shaft through the plurality of reinforced ribs is positioned right above the drill bit enclosure wall at a certain distance. The diameter of the stable enclosure wall is the same as that of the drill bit diameter, and a plurality of rebar supports are welded between the drill bit enclosure wall and the stable enclosure wall to enclose a stable transition section. The drill bit of the rotary drilling rig has wide application scope, improves quality of drill holes and drill efficiency, has simple structure and is easy to manufacture and realize.
Description
Technical field
The utility model relates to a kind of building apparatus, particularly relates to a kind of abrasion drill machine drill head.
Background technology
Abrasion drill is divided into circulation drill and clean-out machine according to the endless form of mud, and clean-out machine is applicable to cohesive soil, sandy soil, land pebble and weathered rock formation.
Hole quality was stable when routine was constructed in cohesive soil, sandy soil, land pebble and decomposed rock with abrasion drill machine drill head, and construction cost is low.But to be that soil layer is stable during conventional abrasion drill machine drill head creeps into, to be evenly distributed, thereby limit the scope of application of the conventional favourable turn rotary head of circling round.Routine circle round the machine drill head in drilling process when running into soft or hard soil layer connecting part, or the hard clay distribution is when uneven, the rig drilling direction can cause hole deviation to the skew of soft layer direction, can't guarantee the pile foundation verticality, drilling quality is poor.
Summary of the invention
Technical problem to be solved in the utility model is exactly to overcome the defective that exists in the prior art, provides a kind of and can guarantee the pile foundation verticality, improves drilling quality and efficient, the abrasion drill machine drill head that the scope of application increases.
For reaching goal of the invention of the present utility model, the technical solution of the utility model is: a kind of abrasion drill machine drill head, comprise hollow axle, be fixed on the annulus cylindrical drill bit leg of hollow axle circumference by many reinforcing ribs, at least three wing fences, wing fence one end is fixed on that the other end condenses together on the drill bit leg, wing fence is that the diameter of axle is to uniform with the axis of hollow axle, wherein, a segment distance is provided with the annulus cylindricality that is fixed on the hollow axle circumference by many reinforcing ribs and stablizes leg directly over the drill bit leg, it is identical with drill bit leg diameter to stablize leg, and many reinforcing bar pillars that weld between drill bit leg and stable leg surround a cylindrical stable changeover portion.
The utility model abrasion drill machine drill head, wherein, the number of wing fence is 3-6, the hypotenuse of wing fence and the angle of drill axis are 30-60 °.
The utility model abrasion drill machine drill head, wherein, the hypotenuse of wing fence and the angle of drill axis are 40-50 °.
The utility model abrasion drill machine drill head, wherein, the height of stablizing leg is that the height of 10-20cm, drill bit leg is 10-20cm.
The utility model abrasion drill machine drill head, wherein, the spacing between adjacent two reinforcing bar pillars is 20-25cm.
The utility model abrasion drill machine drill head, wherein, the distance between drill bit leg and the stable leg is 0.6m-1.2m.
The utility model abrasion drill machine drill head, wherein, the distance between drill bit leg and the stable leg is 0.8-1m.
The beneficial effects of the utility model are: (1) the utility model abrasion drill machine drill head improves the quality and the efficient of boring.This is that in the process of boring, this cylinder and hole wall form a columniform contact surface, thereby can guarantee the verticality in a hole, improve the quality and the efficient of holing because drill bit leg and stable leg and stable changeover portion integral body form a cylinder.(2) the utility model abrasion drill machine drill head scope of application obtains enlarging.This is to stablize the effect of rig drill bit because cylinder of the whole formation of drill bit leg and stable leg and stable changeover portion plays, thereby allows to be used for geological condition complexity, soil layer pockety.(3) the utility model abrasion drill machine drill header structure is simple, realizes easily.
Description of drawings
Fig. 1 is the structural representation of the utility model abrasion drill machine drill head.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model abrasion drill machine drill head is described in further detail.
In Fig. 1, stablize leg 1, reinforcing bar pillar 2, drill bit leg 3, wing fence 4, hollow axle 5.
This abrasion drill machine drill head comprises hollow axle 5, be fixed on the annulus cylindrical drill bit leg 3 of hollow axle 5 circumference by several reinforcing ribs, wing fence 4 numbers are 3, wing fence 4 one ends are fixed on that the other end condenses together on the drill bit leg 3, wing fence 4 is that the diameter of axle is to uniform with the axis of hollow axle, wherein, the 1m position is provided with the annulus cylindricality that is fixed on hollow axle 5 circumference by several reinforcing ribs and stablizes leg 1 directly over drill bit leg 3, it is identical with drill bit leg 3 diameters to stablize leg 1, and the reinforcing bar pillar 2 by some between drill bit leg 3 and the stable leg 1 surrounds a stable changeover portion.The hypotenuse of wing fence 4 and the angle of drill axis are 45 °, and the height of stablizing leg 1 is 15cm, and the height of drill bit leg 3 is 10cm, and the spacing between adjacent two reinforcing bar pillars 2 is 20cm, and the distance of stablizing changeover portion between drill bit leg 3 and the stable leg 1 is 1m.
In the process of using this bit bore that circles round, drill bit leg 3 and stable leg 1 and cylinder of stable changeover portion 6 whole formation, this cylinder and hole wall form a columniform contact surface, in borer drilling procedure when running into unstable hard soil layer or rate of penetration is slowed down in soft or hard soil layer junction, since drill bit cylindrical in the above fixing down can run-off the straight, thereby can guarantee the verticality in a hole.
Claims (7)
1. abrasion drill machine drill head, comprise hollow axle, be fixed on the annulus cylindrical drill bit leg of hollow axle circumference by many reinforcing ribs, at least three wing fences, wing fence one end is fixed on that the other end condenses together on the drill bit leg, wing fence is that the diameter of axle is to uniform with the axis of hollow axle, it is characterized in that: a segment distance is provided with the annulus cylindricality that is fixed on the hollow axle circumference by many reinforcing ribs and stablizes leg directly over the drill bit leg, it is identical with drill bit leg diameter to stablize leg, and many reinforcing bar pillars that weld between drill bit leg and stable leg surround a cylindrical stable changeover portion.
2. abrasion drill machine drill head as claimed in claim 1 is characterized in that: the number of described wing fence is 3-6, and the hypotenuse of wing fence and the angle of drill axis are 30-60 °.
3. abrasion drill machine drill head as claimed in claim 2 is characterized in that: the hypotenuse of described wing fence and the angle of drill axis are 40-50 °.
4. abrasion drill machine drill head as claimed in claim 1 is characterized in that: the height of described stable leg is that the height of 10-20cm, drill bit leg is 10-20cm.
5. abrasion drill machine drill head as claimed in claim 1 is characterized in that: the spacing between described adjacent two reinforcing bar pillars is 20-25cm.
6. abrasion drill machine drill head as claimed in claim 1 is characterized in that: the distance between described drill bit leg and the stable leg is 0.6m-1.2m.
7. abrasion drill machine drill head as claimed in claim 6 is characterized in that: the distance between described drill bit leg and the stable leg is 0.8-1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200850830U CN202000899U (en) | 2011-03-28 | 2011-03-28 | Drill bit of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200850830U CN202000899U (en) | 2011-03-28 | 2011-03-28 | Drill bit of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000899U true CN202000899U (en) | 2011-10-05 |
Family
ID=44703644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200850830U Expired - Fee Related CN202000899U (en) | 2011-03-28 | 2011-03-28 | Drill bit of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000899U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425377A (en) * | 2011-11-01 | 2012-04-25 | 湖南凌天科技有限公司 | Underground pipe drilling bit convenient for chip removal |
| CN103912219A (en) * | 2014-04-23 | 2014-07-09 | 上海市基础工程集团有限公司 | Three-wing double-waist-hoop drill for cast-in-situ bored piles |
| CN113464161A (en) * | 2021-05-27 | 2021-10-01 | 中铁十九局集团第三工程有限公司 | Tunnel water burst section ground surface deep hole segmented curtain grouting method and drilling tool assembly |
-
2011
- 2011-03-28 CN CN2011200850830U patent/CN202000899U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425377A (en) * | 2011-11-01 | 2012-04-25 | 湖南凌天科技有限公司 | Underground pipe drilling bit convenient for chip removal |
| CN103912219A (en) * | 2014-04-23 | 2014-07-09 | 上海市基础工程集团有限公司 | Three-wing double-waist-hoop drill for cast-in-situ bored piles |
| CN113464161A (en) * | 2021-05-27 | 2021-10-01 | 中铁十九局集团第三工程有限公司 | Tunnel water burst section ground surface deep hole segmented curtain grouting method and drilling tool assembly |
| CN113464161B (en) * | 2021-05-27 | 2024-01-19 | 中铁十九局集团第三工程有限公司 | Tunnel water burst section earth surface deep hole sectional curtain grouting method and drilling tool assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170328 |