CN202417319U - Anti-sticking drill bit - Google Patents
Anti-sticking drill bit Download PDFInfo
- Publication number
- CN202417319U CN202417319U CN201120566201XU CN201120566201U CN202417319U CN 202417319 U CN202417319 U CN 202417319U CN 201120566201X U CN201120566201X U CN 201120566201XU CN 201120566201 U CN201120566201 U CN 201120566201U CN 202417319 U CN202417319 U CN 202417319U
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- CN
- China
- Prior art keywords
- drill
- drill bit
- sticking
- tooth
- headstock
- 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 specifically relates to an anti-sticking drill bit, which solves the problem that a general drill bit is easily stuck in a drill hole. The anti-sticking drill bit comprises a cylindrical drill bit seat fixedly sleeved on a drill pipe, wherein drill teeth are circumferentially and uniformly distributed at the front of the drill bit seat, and the outer sides of the drill teeth coincide with a tapered surface coaxial to the drill bit seat; the tip of the tapered surface points to the back of the drill bit seat, and the radius of any cross section of the tapered surface is greater than the radius of the drill bit seat; and stepped drill blades are arranged on the outer side surfaces of the drill teeth. The anti-sticking drill bit provided by the utility model has the advantages of reasonable and compact structure, low cost and convenience and reliability in use.
Description
Technical field
The utility model relates to the drill bit device that uses under the coal mine, is specially a kind of anti-sticking drill bit.
Background technology
In mine was drilled work progress, when running into boring when the hole phenomenon occurring collapsing, drill bit " was blocked up " and in the hole, can't be withdrawed from; When rig had a power failure suddenly, rig stopped to supply water, and the black water in the boring is gone out by gas " pressure ", and drill bit quilt " envelope " is in boring; When running into the geology zone of fracture, drill bit is stuck etc. easily.Existing drill bit mostly can't solve the problem that is stuck in easily in the boring, and the drill bit of some anti-bit freezings is arranged, and utilizes extra power, complex structure and power consumption.
Summary of the invention
The utility model is stuck in the problem in the boring easily in order to solve general drill bit, and a kind of anti-sticking drill bit is provided.
The utility model is to adopt following technical scheme to realize: the anti-sticking drill bit; Comprise the columned drill headstock that is fixed on the drilling rod; The drill headstock front portion is provided with along the brill tooth that circumferentially is uniformly distributed with, and all bore, and the tooth lateral surface is same to be overlapped with the coaxial taper seat of drill headstock, and the most advanced and sophisticated drill headstock rear of pointing to of this taper seat; Any cross section radius of this taper seat bores on the tooth lateral surface and has stepped drill lip greater than the drill headstock radius.
During use, the anti-sticking drill bit drives boring by drilling rod, when withdrawing from drill bit; Do not change the drilling rod direction of rotation; Make the anti-sticking drill bit withdraw from along the boring rotation, the stepped drill lip at anti-sticking drill bit rear grinds the fragment that blocks drill bit, and fragment is powdered; And utilize to bore at the bottom of space between the tooth enters the boring hole with it
The beneficial effect of the utility model is following: the stepped drill lip that the surface is provided with behind the utilization brill tooth, realized in the process of drilling, utilizing the fragment of boring formation the stepped drill lip of rear setting effectively to grind and draining, and make things convenient for drill bit to withdraw from boring.The utility model is rational in infrastructure, compact, and is with low cost, easy to use and reliable.
Description of drawings
Fig. 1 is the structural representation of facing of the utility model;
Fig. 2 is the side-looking structural representation of Fig. 1.
Among the figure: the 1-drilling rod, the 2-drill headstock, 3-bores tooth, the stepped drill lip of 4-.
The specific embodiment
The anti-sticking drill bit; Comprise the columned drill headstock 2 that is fixed on the drilling rod 1; Drill headstock 2 front portions are provided with along the brill tooth 3 that circumferentially is uniformly distributed with, and all bore, and tooth 3 lateral surfaces are same to be overlapped with drill headstock 2 coaxial taper seats, and most advanced and sophisticated drill headstock 2 rears of pointing to of this taper seat; Any cross section radius of this taper seat bores on tooth 3 lateral surfaces and has stepped drill lip 4 greater than drill headstock 2 radiuses.
In the practical implementation process, boring tooth 3 quantity is 3.
Claims (2)
1. anti-sticking drill bit; Comprise the columned drill headstock (2) that is fixed on the drilling rod (1); It is characterized in that: drill headstock (2) front portion is provided with along the brill tooth (3) that circumferentially is uniformly distributed with, and all bore, and tooth (3) lateral surface is same to be overlapped with the coaxial taper seat of drill headstock (2), and most advanced and sophisticated drill headstock (2) rear of pointing to of this taper seat; Any cross section radius of this taper seat bores on tooth (3) lateral surface and has stepped drill lip (4) greater than drill headstock (2) radius.
2. anti-sticking drill bit according to claim 1 is characterized in that: boring tooth (3) quantity is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120566201XU CN202417319U (en) | 2011-12-30 | 2011-12-30 | Anti-sticking drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120566201XU CN202417319U (en) | 2011-12-30 | 2011-12-30 | Anti-sticking drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417319U true CN202417319U (en) | 2012-09-05 |
Family
ID=46742092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120566201XU Expired - Fee Related CN202417319U (en) | 2011-12-30 | 2011-12-30 | Anti-sticking drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691826A (en) * | 2020-07-06 | 2020-09-22 | 淮北矿业股份有限公司 | Front-back bidirectional anti-sticking drill bit |
-
2011
- 2011-12-30 CN CN201120566201XU patent/CN202417319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691826A (en) * | 2020-07-06 | 2020-09-22 | 淮北矿业股份有限公司 | Front-back bidirectional anti-sticking drill bit |
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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: 20120905 Termination date: 20121230 |