CN201851006U - Device for vertically boring holes on concrete with high precision - Google Patents
Device for vertically boring holes on concrete with high precision Download PDFInfo
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- CN201851006U CN201851006U CN2010206035980U CN201020603598U CN201851006U CN 201851006 U CN201851006 U CN 201851006U CN 2010206035980 U CN2010206035980 U CN 2010206035980U CN 201020603598 U CN201020603598 U CN 201020603598U CN 201851006 U CN201851006 U CN 201851006U
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- drilling rod
- concrete
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Abstract
The utility model discloses a device for vertically boring holes on concrete with high precision, comprising a drilling bit positioned at the lower end and a drilling rod positioned at the upper end, wherein, a hole reamer, a rock core pipe and a reducing joint are sequentially connected between the drilling bit and the drilling rod from bottom up; the drilling rod is further sleeved with a centering device; and the top end of the drilling rod is connected with a drive drilling rod through a drilling rod joint. The device for vertically boring holes on concrete with high precision has good verticality of holes, can achieve 100 percent of rock core sampling rate according to construction results, has the hole deflection rate of smaller than three thousandths, has high drilling efficiency and good quality of the holes, and can be widely popularized and applied in detection and reforming engineering of various concrete dams in the field of hydraulic and hydro-power engineering.
Description
Technical field
The utility model relates to a kind of drilling equipment, especially relates to a kind of Hydraulic and Hydro-Power Engineering dam carries out the high accuracy vertical drilling on concrete device that is used for.
Background technology
In industry and the piping erection of civilian construction, rebuilding construction, it is very extensive to use diamond thin-wall drill bit to carry out the construction of concrete vertical drilling, and construction technology is very ripe.But industry is more shallow with the concrete boring construction hole depth in the civilian construction, the verticality requirement is low, and difficulty of construction is low.And it is very common especially to carry out the geology core drilling with the fluid pressure type spindle drill, and technology is also very ripe, though drilling depth is darker, its institute stratum of boring has than big-difference with concrete, and the requirement of boring verticality is also lower, generally only is 1%～3%.And south water to north center line source Danjiangkou Reservoir dam is increased in the technology constructure scheme in the reconstruction and extension project, for solving every stress release seam, need high accuracy concrete horizontal boring from 10 long 12 m of dam downstream sidetracking, to guarantee and hundred-percently to intersect that its vertical drilling precision reaches slope and is not more than 3 ‰ in vertical drilling 22 m depths aspect every stress release seam dam upstream.So dark concrete boring has so high verticality requirement again, and difficulty of construction is very big.
As the patent No. is that the utility model patent of ZL 200920070667.3 discloses a kind of diamond thin-wall drill bit, comprise cutter head, steel body and adaper, the inwall or the outer wall of described cutter head offer groove, described groove originates in the cutter head end and extends on the steel body always, by the diamond thin-wall drill bit inwall and or outer wall offer groove as water flowing, chip area.The diamond thin-wall drill bit that possesses said structure exist verticality poor, get core difficulty, major defect that stock-removing efficiency is low.
Summary of the invention
The purpose of this utility model overcomes deficiency of the prior art exactly, and a kind of drilling efficiency height is provided, and the boring verticality is good, and core-taking rate can reach 100% the device that carries out the high accuracy vertical drilling on concrete.
For solving the problems of the prior art, the utility model has adopted following technical scheme: comprise drill bit that is positioned at the lower end and the drilling rod that is positioned at the upper end, wherein, between described drill bit and described drilling rod, be connected with reamer, core barrel and reducer union from bottom to top in turn, also be set with centralizer on the described drilling rod, the top of described drilling rod is connected with kelly by tool joint.
Further, described reamer external diameter is than big 0.3～0.5 mm of outside diameter.
Further, described core barrel external diameter is than little 3 mm of outside diameter.
Further, described centralizer external diameter and core barrel external diameter equate.
Further, described drilling rod is selected Φ 50mm standard geologic drilling rod for use.
Further, described drill bit is a diamond bit.
The utility model carries out the device of high accuracy vertical drilling on concrete advantage is:
The utility model carries out the device of high accuracy vertical drilling on concrete, the boring verticality is good, the construction results core recovery can reach 100%, the hole scattering rate is less than 3 ‰, the drilling efficiency height, drilling quality is good, can be in the detection of the various concrete dams in Hydraulic and Hydro-Power Engineering field, improvement project wide popularization and application.
Description of drawings
Fig. 1 carries out the structural representation of the device embodiment of high accuracy vertical drilling on concrete for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the utility model carries out the high accuracy vertical drilling on concrete device comprises drill bit 1 and drilling rod 2, between drill bit 1 and drilling rod 2, be connected with reamer 3, core barrel 4, reducer union 5 from bottom to top in turn, be set with centralizer 6 on the drilling rod 2, the top of drilling rod 2 is connected with kelly 8 by tool joint 7.
In the present embodiment, gyrator 91 suits on kelly 8 and the power drive device rig 9, the top of kelly 8 is by water pipe 11 outer water pumps 12.In the process of carrying out vertical drilling, power drive device rig 9 drives kelly 8 revolutions by its gyrator 91, and water pump 12 provides flushing liquor by water pipe 11.
In the present embodiment, drill bit 1 is a diamond bit, and the thin diamond wall concrete bit that its wall ratio is general is thick, and the diamond bit of using than geology core drilling is thin again, has both satisfied the enforcement requirement of technological parameter, satisfies the manufacturing requirement of drilling tool grating again.The concentration of diamond in drill bit 1 carcass is relatively low, selects for use coarse grained high quality diamond monocrystalline as main cutting material, and the hardness of drill bit 1 carcass is selected medium hardness for use according to the label and the diamond quality of dam concrete.
In the present embodiment, described reamer 3 external diameters are than big 0.3～0.5 mm of drill bit 1 external diameter.
In the present embodiment, described core barrel 4 external diameters are than little 3 mm of drill bit 1 external diameter.
In the present embodiment, described centralizer 6 external diameters and core barrel 4 external diameters equate.
In the present embodiment, described drilling rod 2 is selected Φ 50mm standard geologic drilling rod for use.
In the present embodiment, the utility model carries out the device of high accuracy vertical drilling on concrete, under the cooperation of other power drive devices and auxiliary facility, adopt thin diamond wall to creep into technology, select the reasonable coupling of the wall thickness and the drilling machine of suitable diamond bit for use, creep into according to perforate, normally creep into the hole in creep into three kinds of situations unusually and select different drilling parameters for use, and adopt jump ring to get the core method and carry out taking of core, utilize the boring high precision gradient meter of design voluntarily to carry out processes such as hole deviation measurement and correction, finished the construction of on dam concrete, carrying out the high accuracy vertical drilling.
In a word, what embodiment of the present utility model announced is its preferred implementation, but is not limited to this.Those of ordinary skill in the art understands spirit of the present utility model very easily according to the foregoing description, and makes different amplifications and variation, but only otherwise break away from spirit of the present utility model, all within protection domain of the present utility model.
Claims (6)
1. device that on concrete, carries out the high accuracy vertical drilling, comprise drill bit that is positioned at the lower end and the drilling rod that is positioned at the upper end, it is characterized in that, between described drill bit and described drilling rod, be connected with reamer, core barrel and reducer union from bottom to top in turn, also be set with centralizer on the described drilling rod, the top of described drilling rod is connected with kelly by tool joint.
2. the device that carries out the high accuracy vertical drilling on concrete according to claim 1 is characterized in that, described reamer external diameter is than big 0.3～0.5 mm of outside diameter.
3. the device that carries out the high accuracy vertical drilling on concrete according to claim 1 and 2 is characterized in that, described core barrel external diameter is than little 3 mm of outside diameter.
4. the device that carries out the high accuracy vertical drilling on concrete according to claim 3 is characterized in that, described centralizer external diameter and core barrel external diameter equate.
5. the device that carries out the high accuracy vertical drilling on concrete according to claim 3 is characterized in that, described drilling rod is selected Φ 50mm standard geologic drilling rod for use.
6. the device that carries out the high accuracy vertical drilling on concrete according to claim 3 is characterized in that, described drill bit is a diamond bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206035980U CN201851006U (en) | 2010-11-12 | 2010-11-12 | Device for vertically boring holes on concrete with high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206035980U CN201851006U (en) | 2010-11-12 | 2010-11-12 | Device for vertically boring holes on concrete with high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851006U true CN201851006U (en) | 2011-06-01 |
Family
ID=44093405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206035980U Expired - Lifetime CN201851006U (en) | 2010-11-12 | 2010-11-12 | Device for vertically boring holes on concrete with high precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003138A (en) * | 2010-11-12 | 2011-04-06 | 潘鸿宝 | Construction method for carrying out high-precision vertical drilling on concrete and drilling device thereof |
| CN102322229A (en) * | 2011-06-23 | 2012-01-18 | 北京市三一重机有限公司 | Righting mechanism, drilling rod structure and engineering machine using same |
| CN108680389A (en) * | 2018-05-22 | 2018-10-19 | 东南大学 | A kind of hand held high precision concrete drillings sampler and sampling method |
-
2010
- 2010-11-12 CN CN2010206035980U patent/CN201851006U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003138A (en) * | 2010-11-12 | 2011-04-06 | 潘鸿宝 | Construction method for carrying out high-precision vertical drilling on concrete and drilling device thereof |
| CN102322229A (en) * | 2011-06-23 | 2012-01-18 | 北京市三一重机有限公司 | Righting mechanism, drilling rod structure and engineering machine using same |
| CN108680389A (en) * | 2018-05-22 | 2018-10-19 | 东南大学 | A kind of hand held high precision concrete drillings sampler and sampling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |