CN201913289U - Drill - Google Patents
Drill Download PDFInfo
- Publication number
- CN201913289U CN201913289U CN2010206239140U CN201020623914U CN201913289U CN 201913289 U CN201913289 U CN 201913289U CN 2010206239140 U CN2010206239140 U CN 2010206239140U CN 201020623914 U CN201020623914 U CN 201020623914U CN 201913289 U CN201913289 U CN 201913289U
- Authority
- CN
- China
- Prior art keywords
- drill
- guide hole
- liquid guide
- hole
- termination
- 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 discloses a drill which comprises an end head, a drill stem and a drill tail which are integrated into one whole body, wherein the drill tail is provided with a threaded assembly hole; a liquid guide hole is arranged in the end head and the drill stem; a water inlet at the upper end of the liquid guide hole is communicated with the threaded assembly hole; a water outlet at the lower end of the liquid guide hole is arranged at the lower end face of the end head; the water outlet at the lower end of the liquid guide hole is deviated from the center of the lower end face of the end head; and the axis of the liquid guide hole is slantingly arranged relative to the axis of the drill stem. For the drill, the liquid guide hole is slantingly arranged, and thus, cooling liquid guided in the liquid guide hole is easy to rapidly flow down under the action of a centrifugal force when the drill operates so as to ensure that the end head is cooled continuously. The drill has the advantages of good cooling effect and prolonged service life.
Description
Technical field
The utility model relates to a kind of drill bit.
Background technology
Be drilling efficiency that improves drill bit and the life-span of improving drill bit, need be to the termination of drill bit spray cooling water in bit bore, existing drill bit water spraying structure all is arranged on bit exterior, and it is applicable to big drill bit.But the drill bit thin for shaft glue, that drill bit is less, it is through being usually used in boring on thin slabstone, reaming etc., and the mode of this outer feedwater causes drill bit to scrap easily.Outer feedwater simultaneously need be set up water supply structure separately, the inconvenience that this uses for small-sized drillings such as handing brill.
The utility model content
At the problem that existing situation exists, the purpose of this utility model is to provide the drill bit of a kind of structure through improvement, good cooling results.
For achieving the above object, a kind of drill bit of the utility model, comprise integrated termination, drilling rod and brill tail, wherein, bore tail and be provided with the screw thread pilot hole, be provided with delivery hole in termination and the drilling rod, the upper end water inlet of this delivery hole communicates with the screw thread pilot hole, the lower end delivery port of delivery hole is arranged on the lower surface, termination, and this lower end delivery port departs from the center of lower surface, termination, and the axis of delivery hole is obliquely installed with respect to the axis of drilling rod.
A kind of drill bit of the utility model is by being obliquely installed delivery hole, be easy to dirty rapidly in it under the action of centrifugal force of cooling fluid when drill bit turns round of water conservancy diversion, guarantee that the termination obtains continuing cooling, have good cooling results, improved the advantage of drilling life of bit.
Description of drawings
Fig. 1 is the utility model cutaway view.
Wherein Reference numeral is as follows:
Termination 1, drilling rod 2 bores tail 3, screw thread pilot hole 4, delivery hole 5, upper end water inlet 6, lower end delivery port 7.
The specific embodiment
As shown in Figure 1, a kind of drill bit of the utility model comprises integrated termination 1, drilling rod 2 and bores tail 3, bores in the tail 3 and is provided with the screw thread pilot hole 4 that is complementary with rig, the concentric setting of axis of screw thread pilot hole 4 and termination 1 and drilling rod 2.
Be provided with delivery hole 5 in termination 1 and the drilling rod 2, delivery hole 5 runs through whole termination 1 and drilling rod 2, and the axis of delivery hole 5 is obliquely installed with respect to the axis of drilling rod 2.The upper end water inlet 6 of delivery hole 5 communicates with screw thread pilot hole 4, and the lower end delivery port 7 of delivery hole 5 is arranged on the lower surface of termination 1, and lower end delivery port 7 departs from the center of the lower surface of termination 1.
The outer surface of termination 1 is provided with the hard material layer that is made of diamond particles, also is provided with netted rhone on its lower surface, and lower end delivery port 7 communicates with this rhone.
During use, to delivery hole 5, import cooling fluid from screw thread pilot hole 4, drill bit in the running, the centrifugal force that produce in the delivery hole 5 will throw away cooling fluid rapidly, guarantee that the termination obtains continuing cooling, have good cooling results, improved the advantage of drilling life of bit.
Claims (1)
1. drill bit, it is characterized in that, this drill bit comprises integrated termination, drilling rod and brill tail, wherein, bore tail and be provided with the screw thread pilot hole, be provided with delivery hole in termination and the drilling rod, the upper end water inlet of this delivery hole communicates with the screw thread pilot hole, the lower end delivery port of delivery hole is arranged on the lower surface, termination, and this lower end delivery port departs from the center of lower surface, termination, and the axis of delivery hole is obliquely installed with respect to the axis of drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206239140U CN201913289U (en) | 2010-11-15 | 2010-11-15 | Drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206239140U CN201913289U (en) | 2010-11-15 | 2010-11-15 | Drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201913289U true CN201913289U (en) | 2011-08-03 |
Family
ID=44413105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206239140U Expired - Fee Related CN201913289U (en) | 2010-11-15 | 2010-11-15 | Drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201913289U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259528A (en) * | 2014-08-26 | 2015-01-07 | 中国航天科技集团公司烽火机械厂 | Common lathe and tool thereof |
| CN105014129A (en) * | 2015-07-30 | 2015-11-04 | 杨仁卫 | Centrifugal water spraying drill bit |
-
2010
- 2010-11-15 CN CN2010206239140U patent/CN201913289U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259528A (en) * | 2014-08-26 | 2015-01-07 | 中国航天科技集团公司烽火机械厂 | Common lathe and tool thereof |
| CN105014129A (en) * | 2015-07-30 | 2015-11-04 | 杨仁卫 | Centrifugal water spraying drill bit |
| CN105014129B (en) * | 2015-07-30 | 2017-11-17 | 杨仁卫 | Centrifugation water spray 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: 20110803 Termination date: 20111115 |