CN211287519U - Anti-inclined drill bit for rotary drilling rig - Google Patents
Anti-inclined drill bit for rotary drilling rig Download PDFInfo
- Publication number
- CN211287519U CN211287519U CN201922351551.3U CN201922351551U CN211287519U CN 211287519 U CN211287519 U CN 211287519U CN 201922351551 U CN201922351551 U CN 201922351551U CN 211287519 U CN211287519 U CN 211287519U
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- CN
- China
- Prior art keywords
- drill bit
- guide device
- drilling rig
- rotary drilling
- inclination
- 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 title claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a dig rig soon and use anti-oblique drill bit relates to municipal works construction technical field, include: the guide device is a cylinder with openings at two ends, the lower part of the guide device is fixedly sleeved on the upper part of the cutting pick drill bit and used for prolonging the length of a drill cylinder of the cutting pick drill bit, the side wall of the guide device is provided with a plurality of water drainage holes, and the upper part of the cutting pick drill bit is provided with a drill bit square opening. The utility model overcomes current dig rig soon often takes place the inclined defect of pore-forming, can avoid the pore-forming to take place the inclined condition, and convenient to use.
Description
Technical Field
The utility model relates to a municipal works construction technical field especially relates to a dig rig soon and use and prevent oblique drill bit.
Background
In the construction process of constructing the large-diameter cast-in-place bored pile by the rotary drilling rig, when a stratum with uneven hardness and large geological condition difference or a stratum with a large inclined plane is encountered, pore-forming deflection often occurs, perpendicularity is difficult to guarantee, holes need to be swept repeatedly to ensure perpendicularity, and construction efficiency is low. The height of a conventional cutting pick drill bit is generally 1.2-1.6 m, and the anti-inclination effect is not obvious in the pore-forming drilling process. The direct lengthening of the height of the drill cylinder of the cutting pick drill bit often brings difficulty to the disassembly of the drill bit and is not easy to operate and use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dig the rig soon and use and prevent oblique drill bit to solve the problem that above-mentioned prior art exists, can avoid the pore-forming to take place the condition of incline, and convenient to use.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a dig rig soon and use oblique drill bit of preventing, including leading positive ware and pick drill bit, it is both ends open-ended barrel to lead positive ware, lead the fixed cover in positive ware lower part and establish pick drill bit upper portion is used for the extension the brill section of thick bamboo length of pick drill bit, lead positive ware lateral wall and seted up a plurality of outlet openings, pick drill bit upper portion is provided with the drill bit square mouth.
Preferably, the top of the guide device is provided with a closing chamfer.
Preferably, an upper reinforcing ring is fixedly arranged on the inner wall of the guide device at the lower end of the closing-up chamfer.
Preferably, the anti-inclination drill bit for the rotary drilling rig further comprises an upper stiffening plate, the side end face of the upper stiffening plate is fixedly connected to the inner wall of the guide device, and the upper end face of the upper stiffening plate is fixedly connected with the lower surface of the upper reinforcing ring.
Preferably, a plurality of drill bits are welded on the inner wall of the lower end of the pilot device at equal angles in the circumferential direction.
Preferably, the height of a cutting pick drill cylinder is 1.6m, the diameter of the cutting pick drill cylinder is 1.4m, and the outer diameter of the cutting pick drill cylinder is 1.5m after cutting picks are added at the bottom of the drill cylinder.
Preferably, a lower reinforcing ring is fixedly connected to the inner side wall of the lower part of the guide device.
Preferably, the anti-inclination drill bit for the rotary drilling rig further comprises a lower stiffening plate, the side end face of the lower stiffening plate is fixedly connected to the lower portion of the inner side wall of the guide device, the upper end face of the lower stiffening plate is fixedly connected with the lower surface of the lower reinforcing ring, and the lower end of the lower stiffening plate is fixedly connected with the upper end of the cutting pick drill bit.
Preferably, the pick drill bit is internally provided with a discharge switch lengthening compression rod, and the upper end of the discharge switch lengthening compression rod extends out of the pilot.
Preferably, the guide is made of a steel pipe with the diameter of 1.5m, the height of 1.6m and the wall thickness of 20 mm.
The utility model discloses for prior art gain following technological effect:
the utility model provides a dig rig soon with preventing oblique drill bit, including leading positive ware and pick drill bit, lead the fixed cover in positive ware lower part and establish on pick drill bit upper portion for the brill section of thick bamboo length of extension pick drill bit, thereby can improve the straightness that hangs down of drilling, avoid the pore-forming to take place the condition of incline, and can realize being connected facilitating the use with the drilling rod of digging the rig soon through the drill bit square mouth that pick drill bit lateral wall set up.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an anti-tilting drill bit structure for a rotary drilling rig, which is provided by the present invention.
Wherein: 1. the discharging switch lengthens the pressure lever; 2. closing and chamfering; 3. an upper reinforcing ring; 4. adding a stiffening plate; 5. a pilot; 6. a stiffening plate is arranged below; 7. a water drain hole; 8. a square opening of a drill bit; 9. a lower reinforcing ring; 10. a drill bit; 11. a pick bit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a dig the rig soon and use and prevent inclined drill to solve the problem that prior art exists, can avoid the pore-forming to take place the condition of incline, and convenient to use.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1: the embodiment provides an anti-inclination drill bit for a rotary drilling rig, which comprises a pilot 5 and a pick bit 11, wherein the pilot 5 is a cylinder with openings at two ends, and the lower part of the pilot 5 is fixedly sleeved at the upper part of the pick bit 11 and used for prolonging the length of a drilling cylinder of the pick bit 11, so that the perpendicularity of formed holes can be ensured, and the condition that the formed holes are inclined is avoided; the side wall of the guide device 5 is provided with a plurality of drainage holes 7, the upper part of the cutting pick drill bit 11 is provided with a drill bit square opening 8, the drainage holes 7 are used for draining slurry in the guide device 5, the number of the drainage holes 7 is preferably four, the drainage holes are circumferentially and uniformly distributed on the side wall of the guide device 5, and the length of each drainage hole 7 is preferably 350mm, and the height of each drainage hole 7 is preferably 250 mm; the drill bit square opening 8 is used for being connected with a drill rod of a rotary drilling rig, and is inserted into the drill bit square opening 8 through a pin shaft, so that the drill rod and the anti-inclination drill bit for the rotary drilling rig are connected, and the rotary drilling rig is convenient to use.
Leading 5 tops of ware to be provided with binding off chamfer 2, setting up like this, can avoid the drill bit to scrape the pore wall when lifting.
An upper reinforcing ring 3 is fixedly arranged on the inner wall of the guide device 5 at the lower end of the closing-in chamfer 2 and used for improving the structural strength of the guide device 5.
The anti-inclination drill bit for the rotary drilling rig further comprises four reinforcing plates 4, the end faces of the side ends of the four reinforcing plates 4 are welded to the inner wall of the guide device 5, the upper end faces of the four reinforcing plates 4 are welded to the lower surface of the upper reinforcing circular ring 3, so that the connecting strength between the guide device 5 and the upper reinforcing circular ring 3 can be enhanced, and the upper reinforcing plates 4 and the upper reinforcing circular ring 3 are preferably steel plates with the thickness of 20 mm.
A plurality of drill bits 10 are welded on the inner wall of the lower end of the pilot device 5 at equal angles in the circumferential direction and are used for preventing the pilot device 5 from being worn.
The height of the cutting pick drill barrel is preferably 1.6m, the diameter of the cutting pick drill barrel is preferably 1.4m, and the outer diameter of the cutting pick drill barrel is preferably 1.5m after cutting pick is added to the bottom of the drill barrel.
The lower reinforcing ring 9 is fixedly connected to the inner side wall of the lower part of the guide device 5 and used for improving the structural strength of the guide device 5.
The anti-inclination drill bit for the rotary drilling rig further comprises four lower stiffening plates 6, the side end faces of the lower stiffening plates 6 are welded to the lower portion of the inner side wall of the guide device 5, the upper end faces of the lower stiffening plates 6 are welded to the lower surface of the lower reinforcing circular ring 9 and used for reinforcing the welding strength between the inner side wall of the guide device 5 and the lower reinforcing circular ring 9, the lower ends of the lower stiffening plates 6 are welded to the upper end of the cutting pick drill bit 11, and steel plates with the thickness of 20mm are preferably adopted for the lower stiffening plates 6 and the lower reinforcing circular ring 9.
The cutting pick drill bit 11 is internally provided with a discharging switch lengthening compression bar 1, the working principle of the discharging switch compression bar is the same as that of a discharging switch compression bar which is widely applied in the prior art, the discharging switch can be opened to finish discharging by pressing the discharging switch lengthening compression bar 1, the upper end of the discharging switch lengthening compression bar 1 extends out of a guide device 5, the discharging switch lengthening compression bar 1 is higher than the guide device 5 by 300mm, and a user can press the discharging switch lengthening compression bar conveniently.
The guide 5 is made of a steel pipe with a diameter of 1.5m, a height of 1.6m and a wall thickness of 20 mm.
The using method comprises the following steps: the drill rod square head of the rotary drilling rig penetrates through the upper reinforcing ring 3 from the top of the anti-inclination drill guide 5, is inserted into the drill bit square opening 8 of the cutting pick drill bit 11, then is fixed by inserting a pin, connection of the drill rod and the drill bit is realized, and an installer can observe and guide through the drain hole 7 in the installation process. When the novel drill bit provided by the utility model is used for drilling, the drill bit should be drilled at a low rotating speed, and the drilling depth is strictly forbidden to exceed the height of the drill bucket of the cutting pick drill bit 11 every time.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a dig the rig soon and use anti-oblique drill bit which characterized in that: the guide device is a cylinder with openings at two ends, the lower part of the guide device is fixedly sleeved on the upper part of the cutting pick drill bit and used for prolonging the length of a drill cylinder of the cutting pick drill bit, the side wall of the guide device is provided with a plurality of water drainage holes, and the upper part of the cutting pick drill bit is provided with a drill bit square opening.
2. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: and a closing-in chamfer is arranged at the top of the guide device.
3. The anti-inclination drill bit for the rotary drilling rig according to claim 2, characterized in that: and an upper reinforcing ring is fixedly arranged on the inner wall of the guide device at the lower end of the closing-up chamfer.
4. The anti-inclination drill bit for the rotary drilling rig according to claim 3, characterized in that: the upper stiffening plate is fixedly connected to the inner wall of the guide device, and the upper end face of the upper stiffening plate is fixedly connected with the lower surface of the upper reinforcing ring.
5. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: a plurality of drill bits are welded on the inner wall of the lower end of the pilot device at equal angles in the circumferential direction.
6. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: the height of a cutting pick drill cylinder is 1.6m, the diameter of the cutting pick drill cylinder is 1.4m, and the outer diameter of the cutting pick drill cylinder is 1.5m after cutting picks are added at the bottom of the drill cylinder.
7. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: and a lower reinforcing ring is fixedly connected to the inner side wall of the lower part of the guide device.
8. The anti-inclination drill bit for the rotary drilling rig according to claim 7, characterized in that: the side end face of the lower stiffening plate is fixedly connected to the lower portion of the inner side wall of the guide device, the upper end face of the lower stiffening plate is fixedly connected with the lower surface of the lower reinforcing ring, and the lower end of the lower stiffening plate is fixedly connected with the upper end of the cutting pick drill bit.
9. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: the pick drill bit is internally provided with a discharge switch lengthening pressing rod, and the upper end of the discharge switch lengthening pressing rod extends out of the pilot.
10. The anti-inclination drill bit for the rotary drilling rig according to claim 1, characterized in that: the guide device is made of a steel pipe with the diameter of 1.5m, the height of 1.6m and the wall thickness of 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351551.3U CN211287519U (en) | 2019-12-24 | 2019-12-24 | Anti-inclined drill bit for rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351551.3U CN211287519U (en) | 2019-12-24 | 2019-12-24 | Anti-inclined drill bit for rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211287519U true CN211287519U (en) | 2020-08-18 |
Family
ID=72019386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922351551.3U Expired - Fee Related CN211287519U (en) | 2019-12-24 | 2019-12-24 | Anti-inclined drill bit for rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211287519U (en) |
-
2019
- 2019-12-24 CN CN201922351551.3U patent/CN211287519U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 050000 No. 555 Huai'an West Road, Luquan District, Shijiazhuang City, Hebei Province Patentee after: China Hebei Jiankan Group Co.,Ltd. Address before: 050227 No. 555, Huaian West Road, Shijiazhuang City, Hebei Province Patentee before: HEBEI CONSTRUCTION AND INVESTIGATION RESEARCH INSTITUTE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |