CN202990882U - Drill bit of piling device - Google Patents
Drill bit of piling device Download PDFInfo
- Publication number
- CN202990882U CN202990882U CN 201220680220 CN201220680220U CN202990882U CN 202990882 U CN202990882 U CN 202990882U CN 201220680220 CN201220680220 CN 201220680220 CN 201220680220 U CN201220680220 U CN 201220680220U CN 202990882 U CN202990882 U CN 202990882U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cavity
- guide rod
- flow guide
- diversion rod
- 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 of a piling device, which comprises a drill bit body with a cavity, and further comprises a hollow flow guide rod arranged on the drill bit body, wherein the hollow cavity of the flow guide rod is communicated with the cavity of the drill bit body; a high-pressure water convey device is arranged at the upper end of the flow guide rod and has an output end in the cavity of the flow guide rod; the cavity of the drill bit body is tapered; and the bottom end of the tapered cavity is connected with a nozzle at the front end of the drill bit body. According to the utility model, when the drill bit works, the high-pressure water convey device conveys high-pressure water to the cavity of the flow guide rod, and then the high-pressure water enters into the tapered pressure-boosting cavity of the drill bit for secondary pressure boosting so as to improve the impact force of the water sprayed out of the end part of the drill bit to an extent of easily destroying soil and hard soil blocks. Therefore, the drill bit can complete the work more efficiently compared with a current drill bit under the same geological condition.
Description
Technical field
The utility model relates to a kind of pile driving rig equipment, is specifically related to a kind of drill bit of pile driving rig.
Background technology
Long screw pile driver is more and more extensive in the application in the fields such as building, bridge in recent years, particularly more abominable in condition of work, the pile body depth requirements is large, the occasion that quality requirement is high, but the geological conditions difference of pile driver work is very large, and traditional pile driver is difficult to accurately control the working dynamics of long spiral drilling head, for carrying out smoothly of guaranteeing to drive piles, can only improve to greatest extent the power of drill bit, cause to a certain extent the waste of resource; On the other hand, in geology hardness larger area, the wearing and tearing of drill bit are also very serious, more the frequency of bit change is higher, carry out jet flow in water under high pressure input drill bit although have now to adopt, because water under high pressure is that hydraulic pressure is inadequate, the perhaps reason of drill bit structure, water under high pressure usually occurring can not spray from drill bit, affects the work of drill bit.
Summary of the invention
For above-mentioned technical problem, the utility model provides a kind of drill bit with pile driving rig of taper booster cavity, the water under high pressure process taper booster cavity that it can make from the output of high-pressure delivery device makes the water under high pressure secondary booster, thereby stronger from the hydraulic pressure of drill bit end ejection.
Realize that the technical solution of the utility model is as follows:
A kind of drill bit of pile driving rig, comprise the drill body with cavity, also comprise and the diversion rod that is arranged on drill body, described diversion rod is the hollow type diversion rod, the cavity of diversion rod is connected with the cavity of drill body, and the diversion rod upper end is provided with high pressure water delivery device, and the output of high pressure water delivery device is positioned at the cavity of diversion rod, the cavity of described drill body is conical cavity, and the bottom of conical cavity is connected with the nozzle of drill body front end.
The outer wall of described diversion rod is provided with spiral flow deflector.Smash soil, lump the end of drill bit, and spiral flow deflector is upwards carried soil, the lump smashed, and flow deflector can also be smashed again to soil, lump simultaneously.
Adopted such scheme, when drill bit carries out work, high pressure water delivery device conveying high-pressure water in the cavity of diversion rod, water under high pressure enters in the taper booster cavity of drill bit again, make water under high pressure obtain secondary booster, thereby improved from the impact force of drill bit end ejection water, the water under high pressure of its ejection can easier spoiled soil, lump.Thereby the utility model can be under equal geological conditions, and with respect to original drill bit, it can efficient is higher be finished the work.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure, 1 is drill body, and 2 is diversion rod, and 3 is high pressure water delivery device, and 4 is conical cavity, and 5 is nozzle, and 6 is spiral flow deflector.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
as shown in Figure 1, a kind of drill bit of pile driving rig, comprise the drill body 1 with cavity, also comprise and the diversion rod 2 that is arranged on drill body 1, drill body and diversion rod adopt the fixing mode of bolt or the mode of welding or the mode of interference to be assembled together, diversion rod 2 is the hollow type diversion rod, the cavity of diversion rod is connected with the cavity of drill body 1, the diversion rod upper end is provided with high pressure water delivery device 3, the output of high pressure water delivery device is positioned at the cavity of diversion rod, the cavity of described drill body is conical cavity 4, the water under high pressure of high pressure water delivery device output could just allow in taper booster cavity in drill bit like this, the bottom of conical cavity 4 is connected with the nozzle 5 of drill body front end, the water under high pressure of process secondary booster is from the nozzle ejection of drill body front end.The outer wall of described diversion rod is provided with spiral flow deflector 6.
Above embodiment is not to restriction of the present utility model, and the scope of the utility model protection includes but not limited to above embodiment, and any improvement of carrying out on basis of the present utility model all belongs to the scope of the utility model protection.
Claims (2)
1. the drill bit of a pile driving rig, comprise the drill body with cavity, it is characterized in that: also comprise and the diversion rod that is arranged on drill body, described diversion rod is the hollow type diversion rod, the cavity of diversion rod is connected with the cavity of drill body, and the diversion rod upper end is provided with high pressure water delivery device, and the output of high pressure water delivery device is positioned at the cavity of diversion rod, the cavity of described drill body is conical cavity, and the bottom of conical cavity is connected with the nozzle of drill body front end.
2. the drill bit of a kind of pile driving rig according to claim 1, it is characterized in that: the outer wall of described diversion rod is provided with spiral flow deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680220 CN202990882U (en) | 2012-12-12 | 2012-12-12 | Drill bit of piling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680220 CN202990882U (en) | 2012-12-12 | 2012-12-12 | Drill bit of piling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202990882U true CN202990882U (en) | 2013-06-12 |
Family
ID=48562073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680220 Expired - Fee Related CN202990882U (en) | 2012-12-12 | 2012-12-12 | Drill bit of piling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202990882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104198A (en) * | 2012-12-12 | 2013-05-15 | 常州市立威刀具有限公司 | Drill bit of piling device |
-
2012
- 2012-12-12 CN CN 201220680220 patent/CN202990882U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104198A (en) * | 2012-12-12 | 2013-05-15 | 常州市立威刀具有限公司 | Drill bit of piling device |
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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: 20130612 Termination date: 20131212 |