CN201963201U - Drill bit for foundation piling - Google Patents
Drill bit for foundation piling Download PDFInfo
- Publication number
- CN201963201U CN201963201U CN2011200850101U CN201120085010U CN201963201U CN 201963201 U CN201963201 U CN 201963201U CN 2011200850101 U CN2011200850101 U CN 2011200850101U CN 201120085010 U CN201120085010 U CN 201120085010U CN 201963201 U CN201963201 U CN 201963201U
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- CN
- China
- Prior art keywords
- rotating shaft
- bearing
- axis
- cutter tool
- spring
- 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 drill bit for foundation piling, which is characterized in that the upper part of a middle shaft is provided with a positioning ring, the positioning ring is positioned at the upper part of a bearing, the middle shaft is positioned inside a drill pipe, the middle position of the middle shaft is provided with a spring, the lower end of the spring is provided with a clamp ring, the top of the middle shaft is provided with a centering bearing, the upper part of the drill pipe is a connecting head, the lower end of the drill pipe is provided with a fixed cutter tool rotating shaft, the upper end of a cambered cutter tool is arranged on the fixed cutter tool rotating shaft, the lower end of the cambered cutter tool is connected with a movable rotating shaft, the movable rotating shaft is connected with a supporting rotation cutter tool, the lower end of the supporting rotation cutter tool is connected with the fixed rotating shaft, the fixed rotating shaft is arranged on a fixing seat, the bottom of the middle shaft is provided with a base, a lower anti-thrust bearing is arranged above the base, the bearing is in interference fit with the inner wall of the drill pipe and is in clearance fit with the outer wall of the middle shaft, a gasket is arranged under the bearing, and the lower part of the gasket is provided with an upper pressure anti-thrust bearing. The drill bit for the foundation piling has the beneficial effects that the structure is novel, the manufacture cost is low, the use is convenient and flexible, the operation time of building workers is saved, and foundation galleries with a larger lower space can be built.
Description
Technical field:
The utility model belongs to the construction machinery equipment technical field, is meant a kind of ground solid borer for pile driving concretely.
Background technology:
At present, it is that the foundation pit of getting mostly is the foundation ditch of unified diameter up and down in the tunnel of laying the foundations that the ground tunnel adopts open well brill or exploration to use drill bit, this drill bit with drill bit more, but this tunnel can not satisfy existing common square of building needs fully.The ground tunnel that existing common domestic architecture ground needs needs base diameter greater than upper diameter, and forms necessarily bigger space in the bottom, enlarges the firm stationarity of bottom ground.And present drill bit can't be accomplished this point, and this just brings very big trouble to the construction worker.
The utility model content:
Can't get out common domestic architecture ground tunnel problem in order to solve existing drill bit, the utility model provides a kind of ground solid borer for pile driving, this ground solid borer for pile driving have novel structure, low cost of manufacture, easy to use flexibly, save construction worker's operating time, can get the bigger advantages such as ground tunnel of lower space.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of ground solid borer for pile driving, mainly comprise axis, locating ring, drilling pipe, spring, snap ring, moving rotating shaft, the supportive rotary cutter, decide rotating shaft, holder, base, cutter is decided rotating shaft, curved facet tool, bearing, pad, the upward pressure thrust bearing, alignment bearing, connector, following thrust bearing, it is characterized in that: locating ring is established on axis top, locating ring is positioned at bearing top, axis is positioned at inside drill pipe, the axis middle part is equipped with spring, the spring lower end is provided with snap ring, the axis top is provided with alignment bearing, drilling pipe top is connector, the drilling pipe lower end is provided with cutter and decides rotating shaft, the curved facet tool upper end is installed in cutter and decides in the rotating shaft, the lower end connects moving rotating shaft, moving rotating shaft connects the supportive rotary cutter, supportive rotary cutter lower end connects decides rotating shaft, deciding rotating shaft is installed on the holder, the axis bottom is provided with base, be provided with down thrust bearing above the base, bearing and drilling pipe inwall are interference fit, with the axis outer wall be matched in clearance, bearing has pad, and the pad bottom is provided with the upward pressure thrust bearing.
The beneficial effects of the utility model are, novel structure, low cost of manufacture, easy to use flexibly, save construction worker's operating time, can get the bigger ground tunnel of lower space.
Description of drawings:
Fig. 1 is the utility model structural representation.
1. axis among the figure, 2. locating ring, 3. drilling pipe, 4. spring, 5. snap ring, 6. moving rotating shaft, 7. the supportive rotary cutter, 8. decide rotating shaft, 9. holder, 10. base, 11. cutters are decided rotating shaft, 12. curved facet tool, 13. bearings, 14. pads, 15. upward pressure thrust bearings, 16. alignment bearings, 17. connectors, 18. times thrust bearings.
The specific embodiment:
Below in conjunction with drawings and Examples the utility model is further specified.
A kind of ground solid borer for pile driving, mainly comprise axis 1, locating ring 2, drilling pipe 3, spring 4, snap ring 5, moving rotating shaft 6, supportive rotary cutter 7, decide rotating shaft 8, holder 9, base 10, cutter is decided rotating shaft 11, curved facet tool 12, bearing 13, pad 14, upward pressure thrust bearing 15, alignment bearing 16, connector 17, following thrust bearing 18, it is characterized in that: locating ring 2 is established on axis 1 top, locating ring 2 is positioned at bearing 13 tops, axis 1 is positioned at drilling pipe 3 inside, axis 1 middle part is equipped with spring 4, spring 4 lower ends are provided with snap ring 5, axis 1 top is provided with alignment bearing 16, drilling pipe 3 tops are connector 17, drilling pipe 3 lower ends are provided with cutter and decide rotating shaft 11, curved facet tool 12 upper ends are installed in cutter and decide in the rotating shaft 11, the lower end connects moving rotating shaft 6, moving rotating shaft 6 connects supportive rotary cutter 7, supportive rotary cutter 7 lower ends connect decides rotating shaft 8, deciding rotating shaft 8 is installed on the holder 9, axis 1 bottom is provided with base 10, be provided with down thrust bearing 18 above the base 10, bearing 13 and drilling pipe 3 inwalls are interference fit, with axis 1 outer wall be matched in clearance, bearing 13 has pad 14, and pad 14 bottoms are provided with upward pressure thrust bearing 15.
The beneficial effect of this drill bit for foundation piling is, novel structure, low cost of manufacture, easy to use and flexible, saving builder operating time, can get the bigger ground tunnel of lower space.
Claims (1)
1. ground solid borer for pile driving, mainly comprise axis (1), locating ring (2), drilling pipe (3), spring (4), snap ring (5), moving rotating shaft (6), supportive rotary cutter (7), decide rotating shaft (8), holder (9), base (10), cutter is decided rotating shaft (11), curved facet tool (12), bearing (13), pad (14), upward pressure thrust bearing (15), alignment bearing (16), connector (17), following thrust bearing (18), it is characterized in that: locating ring (2) is established on axis (1) top, locating ring (2) is positioned at bearing (13) top, axis (1) is positioned at drilling pipe (3) inside, axis (1) middle part is equipped with spring (4), spring (4) lower end is provided with snap ring (5), axis (1) top is provided with alignment bearing (16), drilling pipe (3) top is connector (17), drilling pipe (3) lower end is provided with cutter and decides rotating shaft (11), curved facet tool (12) upper end is installed in cutter and decides in the rotating shaft (11), the lower end connects moving rotating shaft (6), moving rotating shaft (6) connects supportive rotary cutter (7), supportive rotary cutter (7) lower end connects decides rotating shaft (8), deciding rotating shaft (8) is installed on the holder (9), axis (1) bottom is provided with base (10), be provided with down thrust bearing (18) above the base (10), bearing (13) and drilling pipe (3) inwall are interference fit, and axis (1) outer wall is a matched in clearance, bearing (13) has pad (14), and pad (14) bottom is provided with upward pressure thrust bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200850101U CN201963201U (en) | 2011-03-28 | 2011-03-28 | Drill bit for foundation piling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200850101U CN201963201U (en) | 2011-03-28 | 2011-03-28 | Drill bit for foundation piling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963201U true CN201963201U (en) | 2011-09-07 |
Family
ID=44525736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200850101U Expired - Fee Related CN201963201U (en) | 2011-03-28 | 2011-03-28 | Drill bit for foundation piling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081530A (en) * | 2020-10-20 | 2020-12-15 | 中国石油集团渤海钻探工程有限公司 | PDC drill bit with buffer gear |
-
2011
- 2011-03-28 CN CN2011200850101U patent/CN201963201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081530A (en) * | 2020-10-20 | 2020-12-15 | 中国石油集团渤海钻探工程有限公司 | PDC drill bit with buffer gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20140328 |