CN2671779Y - Thin wall diamond drill bit - Google Patents
Thin wall diamond drill bit Download PDFInfo
- Publication number
- CN2671779Y CN2671779Y CN 200320100705 CN200320100705U CN2671779Y CN 2671779 Y CN2671779 Y CN 2671779Y CN 200320100705 CN200320100705 CN 200320100705 CN 200320100705 U CN200320100705 U CN 200320100705U CN 2671779 Y CN2671779 Y CN 2671779Y
- Authority
- CN
- China
- Prior art keywords
- steel body
- conical surface
- drill bit
- adaper
- involute
- 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
Links
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- Earth Drilling (AREA)
Abstract
The utility model relates to a thin wall diamond drill bit, comprising a cutter head 1, a steel body 2 and a connecting head 4. The cutter head 1 is welded with the steel body 2, a connecting disc 3 is arranged between the steel body 2 and the connecting head 4; the steel body 2 and the connecting disc 3 are connected by screw threads, and the steel body 2 is the external screw thread; the connecting disc 3 and the connecting head 4 are connected by an involute conical surface, the connecting disc 3 is an outer conical surface which has small inside and big outside, and the connecting head 4 is an inner conical surface which has small inside and big outside. The thin wall diamond drill bit has the advantages that the connecting structure between the steel body of drilling bit and the conical surface of the connecting head is reserved, so that an inverted core can be mounted and dismounted quickly; the problem that the front end of the drill bit can fall off when the drill bit is drilled downwardly can be solved by using the characteristics that the involute joining surface can become tighter to be joined with an inverted conical surface.
Description
Technical field
The utility model relates to a kind of thin faced bit, and particularly a kind of fast-connecting type thin faced bit is used for the processing of crisp and hard materials such as armored concrete.
Background technology
In the prior art, a kind of fast-connecting type thin faced bit is arranged, adaper and steel body are formed by connecting by the fast access node structure of taper seat, and steel body afterbody is a little outer big internal conical surface in the certain depth, adaper be certain-length outer little in big outer conical surface.Drill bit can be poured out rock core from drill steel body afterbody apace with adaper and the mounting or dismounting of steel body in use, improves the drill bit service efficiency.But this drill bit creeps into floor when penetrating downwards, the steel body occurs and adaper is thrown off voluntarily through regular meeting, and chisel edge drops to downstairs phenomenon together with rock core, and security incident takes place.
The utility model content
The purpose of this utility model is to provide a kind of fast-connecting type thin faced bit, both can be apace during use core be fallen in adaper and the mounting or dismounting of steel body, can prevent that again steel body and adaper from throwing off voluntarily, avoids taking place security incident.
The technical solution of the utility model is: a kind of thin faced bit, constitute by cutter head, steel body adaper, cutter head and the welding of steel body, between steel body and adaper, be provided with and connect dish, the steel body with connect dish by being threaded, the steel body is an external screw thread, connect the dish be connected by the involute conical surface with adaper, connect dish and be the little outer big male cone (strobilus masculinus) in lining, adaper be little outward in big inner conical surface.
The beneficial effects of the utility model are: both kept the advantage that steel body and adaper taper seat syndeton install and remove core fast, the characteristics that can utilize the involute composition surface to engage with tight more and inverted cone surface more again, the problem that chisel edge falls down when having solved it and creeping into downwards.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structure connection layout of thin faced bit.
Fig. 2 is the involute end profile view that connects dish.
Fig. 3 is the involute end profile view of adaper.
1. cutter heads among the figure, 2. the steel body 3. connects dish, 4. adaper.
The specific embodiment
Figure of description is an enforcement optimal way of the present utility model, further specifies the utility model below in conjunction with accompanying drawing.
In Fig. 1, cutter head (1)) with steel body (2) welding, steel body (2) with connect dish (3) by being threaded, the steel body is an external screw thread, connect dish (3) and be in the certain-length little outside big male cone (strobilus masculinus), adaper (4) be outside the certain depth little in big inner conical surface.Fig. 2 shows that with Fig. 3 connecing dish (3) is connected by the involute conical surface with adaper (4).Adaper [4] involute conical surface outer rim and connect the gap of radially leaving 1～2mm between dish (3) the involute conical surface outer rim, precession when being convenient to connect, this gap can be by obtaining adaper (4) involute conical surface outer rim chamfering.Show among Fig. 3 and open a loss of weight groove on the adaper (4), solved simple involute and connected the dynamic equilibrium problems that fastening back exists.
Claims (1)
1, a kind of thin faced bit, constitute by cutter head (1), steel body (2), adaper (4), cutter head (1) and steel body (2) welding, it is characterized in that: between steel body (2) and adaper (4), be provided with and connect dish (3), steel body (2) with connect dish (3) by being threaded, steel body (2) is an external screw thread, connects dish (3) and is connected by the involute conical surface with adaper (4), connect dish (3) and be the little outer big male cone (strobilus masculinus) in lining, adaper (4) be little outward in big inner conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100705 CN2671779Y (en) | 2003-10-01 | 2003-10-01 | Thin wall diamond drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100705 CN2671779Y (en) | 2003-10-01 | 2003-10-01 | Thin wall diamond drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2671779Y true CN2671779Y (en) | 2005-01-19 |
Family
ID=34473962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100705 Expired - Fee Related CN2671779Y (en) | 2003-10-01 | 2003-10-01 | Thin wall diamond drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2671779Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380760A (en) * | 2011-09-23 | 2012-03-21 | 杭州钻虎金刚石工具有限公司 | Processing method for engineering diamond core drill matrix |
| CN102528410A (en) * | 2011-11-07 | 2012-07-04 | 杭州钻虎金刚石工具有限公司 | Process for manufacturing base body of engineering thin-walled drill |
-
2003
- 2003-10-01 CN CN 200320100705 patent/CN2671779Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380760A (en) * | 2011-09-23 | 2012-03-21 | 杭州钻虎金刚石工具有限公司 | Processing method for engineering diamond core drill matrix |
| CN102380760B (en) * | 2011-09-23 | 2013-09-04 | 杭州钻虎金刚石工具有限公司 | Processing method for engineering diamond core drill matrix |
| CN102528410A (en) * | 2011-11-07 | 2012-07-04 | 杭州钻虎金刚石工具有限公司 | Process for manufacturing base body of engineering thin-walled drill |
| CN102528410B (en) * | 2011-11-07 | 2014-07-16 | 杭州钻虎金刚石工具有限公司 | Process for manufacturing base body of engineering thin-walled drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |