CN203742453U - Rock embedding and bottom expanding drill bit - Google Patents
Rock embedding and bottom expanding drill bit Download PDFInfo
- Publication number
- CN203742453U CN203742453U CN201420141243.2U CN201420141243U CN203742453U CN 203742453 U CN203742453 U CN 203742453U CN 201420141243 U CN201420141243 U CN 201420141243U CN 203742453 U CN203742453 U CN 203742453U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- bottom expanding
- cutting plate
- drill
- expanding drill
- 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 - Lifetime
Links
- 239000011435 rock Substances 0.000 title claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003921 oil Substances 0.000 abstract 4
- 239000010720 hydraulic oil Substances 0.000 abstract 3
- 230000036346 tooth eruption Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Abstract
The utility model relates to a rock embedding and bottom expanding drill bit. The rock embedding and bottom expanding drill bit comprises a drill bit body, wherein a water delivery pipe (9), an oil delivery pipe (6) and an oil return pipe (7) are arranged on two sides of a drill rod of the drill bit, a high pressure water outlet (8) and a bottom expanding device (2) are arranged at the bottom of a drill slice (1), a hydraulic oil cylinder (3) and a cutting plate (4) are symmetrically arranged in the bottom expanding device (2), one end of the fan-shaped cutting plate (4) is movably fixed on the drill slice (1), the other end of the fan-shaped cutting plate (4) is movably fixed at the top of the hydraulic oil cylinder (3), special wear resisting cutting teeth (5) are arranged on the fan-shaped cutting plate (4), the bottom of the hydraulic oil cylinder (3) is connected with the oil delivery pipe (6) and the oil return pipe (7), and the high pressure water outlet (8) is connected with the water delivery pipe (9). The rock embedding and bottom expanding drill bit is reasonable in structure and convenient to use, can automatically extend, can be cooled, can improve drilling efficiency, can effectively solve the problems in pile foundation bottom expanding, and has broad market prospect.
Description
Technical field
The utility model relates to drill bit of drilling machine technical field, especially a kind of embedding rock, bottom expanding drill.
Background technology
At present, when the construction of long auger bottom-enlarging filling pile, drill bit gets into needs first to mention drilling rod after design deeply to reamer on replaced on ground, and then at the bottom of utilizing drilling rod that reamer is delivered to hole, expand bottom application work, reach after designing requirement, promote again the drill bit of drilling rod to replaced on ground upper bottom portion band filling concrete valve, at the bottom of utilizing drilling rod that drill bit is delivered to hole, pour into operation, this work progress efficiency is lower, complicated operation, meet hard rock drill bit easy to wear, maintenance cost is higher, so existing long auger bottom-enlarging filling pile construction equipment has seriously restricted the development of pile foundation industry.
Summary of the invention
The technical problems to be solved in the utility model be to provide a kind of rational in infrastructure, water filling is cooling, can automatic expansion, easy-to-use embedding rock, bottom expanding drill.
The technical solution of the utility model is: a kind of embedding rock, bottom expanding drill, comprise drill body, and it is characterized in that: the drilling rod both sides of described drill bit are provided with water-supply-pipe, petroleum pipeline, oil return pipe, bore sheet bottom and be provided with high-pressure outlet and expand end device.
At the bottom of described expansion, in device, be symmetrically arranged with hydraulic jack and cutting plate, one end of described cutting plate is movably fixed to bores on sheet, and the other end is movably fixed to hydraulic jack top.
Described cutting plate is sector.
On described cutting plate, be provided with special, wear-resistant pick.
Described hydraulic jack bottom is connected with oil return pipe with petroleum pipeline.
Described high-pressure outlet is connected with water-supply-pipe.
The utility model is by improving existing drill bit, by cooling and expansion end device being set in brill sheet bottom, the cutting scope of reaming bit, having simplified existing expansion bottom application work needs the more operation of bit change, and water filling is cooling, reduces bit wear, and this drill bit structure is reasonable, easy to use, work efficiency is high, can automatic expansion, the problem that can effectively solve pile foundation and expand the end, has filled up a blank of world's pile foundation industry.
Brief description of the drawings
Fig. 1 is that the utility model enters rock bottom expanding drill schematic diagram;
Fig. 2 is drill bit bottom cutaway view Amplified image in Fig. 1.
Detailed description of the invention
A kind of embedding rock, bottom expanding drill, comprise drill body, the drilling rod both sides of described drill bit are provided with water-supply-pipe 9, petroleum pipeline 6, oil return pipe 7, boring sheet 1 bottom is provided with high-pressure outlet 8 and expands end device 2, at the bottom of described expansion, in device 2, be symmetrically arranged with hydraulic jack 3 and cutting plate 4, one end of described cutting plate 4 is movably fixed to bores on sheet 1, and the other end is movably fixed to hydraulic jack 3 tops.
Described cutting plate 4 is sector.
On described cutting plate 4, be provided with special, wear-resistant pick 5.
Described hydraulic jack 3 bottoms are connected with oil return pipe 7 with petroleum pipeline 6.
Described high-pressure outlet 8 is connected with water-supply-pipe 9.
This drill bit is applicable to the geological formations in the most of provinces of central China, city, will make huge contribution for the construction quality that improves pile foundation industry.
The above; it is only preferably detailed description of the invention of this practicality; but the utility model protection domain is not limited to this, is equal to replacement or is changed according to the technical solution of the utility model and inventive concept thereof, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. embedding rock, a bottom expanding drill, comprise drill body, it is characterized in that: the drilling rod both sides of described drill bit are provided with water-supply-pipe (9), petroleum pipeline (6), oil return pipe (7), bores sheet (1) bottom and be provided with high-pressure outlet (8) and expand end device (2).
2. embedding rock according to claim 1, bottom expanding drill, it is characterized in that: in device at the bottom of described expansion (2), be symmetrically arranged with hydraulic jack (3) and cutting plate (4), one end of described cutting plate (4) is movably fixed to bores sheet (1) above, and the other end is movably fixed to hydraulic jack (3) top.
3. embedding rock according to claim 2, bottom expanding drill, is characterized in that: described cutting plate (4) is sector.
4. embedding rock according to claim 2, bottom expanding drill, is characterized in that: on described cutting plate (4), be provided with special, wear-resistant pick (5).
5. embedding rock according to claim 2, bottom expanding drill, is characterized in that: described hydraulic jack (3) bottom is connected with oil return pipe (7) with petroleum pipeline (6).
6. embedding rock according to claim 1, bottom expanding drill, is characterized in that: described high-pressure outlet (8) is connected with water-supply-pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141243.2U CN203742453U (en) | 2014-03-27 | 2014-03-27 | Rock embedding and bottom expanding drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141243.2U CN203742453U (en) | 2014-03-27 | 2014-03-27 | Rock embedding and bottom expanding drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742453U true CN203742453U (en) | 2014-07-30 |
Family
ID=51342270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141243.2U Expired - Lifetime CN203742453U (en) | 2014-03-27 | 2014-03-27 | Rock embedding and bottom expanding drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153161A (en) * | 2021-03-05 | 2021-07-23 | 广州市建筑科学研究院有限公司 | Hard rock cutting drill bit for heel-pipe pile while drilling and construction method |
-
2014
- 2014-03-27 CN CN201420141243.2U patent/CN203742453U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153161A (en) * | 2021-03-05 | 2021-07-23 | 广州市建筑科学研究院有限公司 | Hard rock cutting drill bit for heel-pipe pile while drilling and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 1211 No. 330200 Jiangxi city of Nanchang province Toyama Blue Road Economic Development Zone Patentee after: JIANGXI ZHONGHENG UNDERGROUND SPACE TECHNOLOGY CO., LTD. Address before: 1211 No. 330200 Jiangxi city of Nanchang province Toyama Blue Road Economic Development Zone Patentee before: JIANGXI ZHONGHENG GEOTECHNICAL ENGINEERING TECHNOLOGY CO., LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rock embedding and bottom expanding drill bit Effective date of registration: 20160704 Granted publication date: 20140730 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanchang branch Pledgor: JIANGXI ZHONGHENG UNDERGROUND SPACE TECHNOLOGY CO., LTD. Registration number: 2016360000009 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190212 Granted publication date: 20140730 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanchang branch Pledgor: JIANGXI ZHONGHENG UNDERGROUND SPACE TECHNOLOGY CO., LTD. Registration number: 2016360000009 |