CN204912865U - Split type drill bit - Google Patents
Split type drill bit Download PDFInfo
- Publication number
- CN204912865U CN204912865U CN201520602214.6U CN201520602214U CN204912865U CN 204912865 U CN204912865 U CN 204912865U CN 201520602214 U CN201520602214 U CN 201520602214U CN 204912865 U CN204912865 U CN 204912865U
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- CN
- China
- Prior art keywords
- cylindrical bar
- drill bit
- iii
- cylinder pole
- drilling 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 split type drill bit, including the drilling rod and installing the drill bit on the drilling rod, the front end of drill bit is equipped with cutting blade portion, be formed with the prism in cardinal extremity one side qieyu cardinal extremity portion of cutting blade portion, " V " style of calligraphy groove has been seted up on the prism, the surface of the junction of drilling rod and drill bit is equipped with cylinder pole I, connects cylinder pole II in the terminal surface department of cylinder pole I, is connected with cylinder pole III on the terminal surface of cylinder pole II, is equipped with the tooth's socket at the tip opening part of cylinder pole III, the upper portion of the both sides end of tooth's socket is equipped with the boss, the inside cavity of cylinder pole III has a spring at III internally mounted on the cylinder pole, the end at cylinder pole III is supported on the one end top of spring. The utility model discloses when the drill bit damages, be convenient for change, this drill bit adopts carbide to make, can improve its wear resistance.
Description
Technical field
The utility model relates to processing equipment part, particularly relates to a kind of Split type drill.
Background technology
Drill bit goes out through hole or blind hole in order to drilling on solid material, and can to the cutter of existing hole reaming.Conventional drill bit mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.
Existing drill bit structure, substantially similar with screw, there is screw thread.Drill bit is when bore operation, and drill bit, around vertical shaft rotary, moves axially simultaneously.Solid material is cut under the moment of torsion and responsive to axial force of drill bit, is destroyed and smashes to ravel under the extruding and centrifugal action of working-blade, forms hole or hole.Current drill bit in use, easily wear and tear by its end, thus cause scrapping of whole drill bit.
Utility model content
The utility model, in order to overcome deficiency of the prior art, provides a kind of Split type drill.
The utility model is achieved through the following technical solutions:
A kind of Split type drill, comprise drilling rod and be arranged on the drill bit on drilling rod, the front end of drill bit is provided with blade part; Described blade part cardinal extremity side and be formed with prism on base end part, described prism offers " V " font groove; The outer surface of the junction of described drilling rod and drill bit is provided with cylindrical bar I, at the end connecting cylinder bar II of cylindrical bar I, the end face of cylindrical bar II is connected with cylindrical bar III, and be provided with teeth groove at the open-ended place of cylindrical bar III, the top of the two side ends of described teeth groove is provided with boss.
As optimal technical scheme of the present utility model, described cylindrical bar II is arranged between cylindrical bar I and cylindrical bar III, the largest diameter of cylindrical bar II, and the diameter of cylindrical bar III takes second place, and the diameter of cylindrical bar I is minimum.
As optimal technical scheme of the present utility model, the inner hollow of described cylindrical bar III, is provided with spring in cylindrical bar III inside, and one end contact of described spring is at the end of cylindrical bar III.
As optimal technical scheme of the present utility model, the inwall of described cylindrical bar I, cylindrical bar II and cylindrical bar III offers screw thread, drilling rod also offers coupled screw thread.
Compared with prior art, the beneficial effects of the utility model are: the utility model, when bit damage, is convenient to change; This drill bit employing carbide alloy is made, and can improve its anti-wear performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-drilling rod; 2-drill bit; 3-blade part; 4-prism; 5-" V " font groove; 6-cylindrical bar I; 7-cylindrical bar II; 8-cylindrical bar III; 9-teeth groove; 10-boss; 11-spring.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of Split type drill, comprise drilling rod 1 and be arranged on the drill bit 2 on drilling rod 1, the front end of drill bit 2 is provided with blade part 3; Described blade part 3 cardinal extremity side and be formed with prism 4 on base end part, described prism 4 offers " V " font groove 5; Described drilling rod 1 is provided with cylindrical bar I 6 with the outer surface of the junction of drill bit 2, at the end connecting cylinder bar II 7 of cylindrical bar I 6, the end face of cylindrical bar II 7 is connected with cylindrical bar III 8, teeth groove 9 is provided with at the open-ended place of cylindrical bar III 8, the top of the two side ends of described teeth groove 9 is provided with boss 10, and boss 10 is welded on the outer surface of cylindrical bar III 8.
Described cylindrical bar II 7 is arranged between cylindrical bar I 6 and cylindrical bar III 8, the largest diameter of cylindrical bar II 7, and the diameter of cylindrical bar III 8 takes second place, and the diameter of cylindrical bar I 6 is minimum; The inner hollow of described cylindrical bar III 8, is provided with spring 11 in cylindrical bar III 8 inside, and one end contact of described spring 11 is at the end of cylindrical bar III 8; The inwall of described cylindrical bar I 6, cylindrical bar II 7 and cylindrical bar III 8 offers screw thread, drilling rod 1 also offers coupled screw thread.Described cylindrical bar I 6, cylindrical bar II 7 and cylindrical bar III 8 are installed with one heart.
The utility model, when bit damage, is convenient to change; This drill bit employing carbide alloy is made, and so-called carbide drill take tungsten-carbide powder as matrix, makes binding agent form, containing tungsten carbide 94%, containing cobalt 6% through pressurization, sintering with cobalt powder.Because its hardness is very high, very wear-resisting, there is some strength, be suitable for high-speed cutting.Its anti-wear performance can be improved.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a Split type drill, comprise drilling rod (1) and be arranged on the drill bit (2) on drilling rod (1), the front end of drill bit (2) is provided with blade part (3), it is characterized in that:
Described blade part (3) cardinal extremity side and be formed with prism (4) on base end part, described prism (4) offers " V " font groove (5);
Described drilling rod (1) is provided with cylindrical bar I (6) with the outer surface of the junction of drill bit (2), at the end connecting cylinder bar II (7) of cylindrical bar I (6), the end face of cylindrical bar II (7) is connected with cylindrical bar III (8), be provided with teeth groove (9) at the open-ended place of cylindrical bar III (8), the top of the two side ends of described teeth groove (9) is provided with boss (10).
2. a kind of Split type drill according to claim 1, it is characterized in that: described cylindrical bar II (7) is arranged between cylindrical bar I (6) and cylindrical bar III (8), the largest diameter of cylindrical bar II (7), the diameter of cylindrical bar III (8) takes second place, and the diameter of cylindrical bar I (6) is minimum.
3. a kind of Split type drill according to claim 2, it is characterized in that: the inner hollow of described cylindrical bar III (8), be provided with spring (11) in cylindrical bar III (8) inside, one end contact of described spring (11) is at the end of cylindrical bar III (8).
4. a kind of Split type drill according to claim 2, it is characterized in that: the inwall of described cylindrical bar I (6), cylindrical bar II (7) and cylindrical bar III (8) offers screw thread, drilling rod (1) also offers coupled screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602214.6U CN204912865U (en) | 2015-08-12 | 2015-08-12 | Split type drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602214.6U CN204912865U (en) | 2015-08-12 | 2015-08-12 | Split type drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912865U true CN204912865U (en) | 2015-12-30 |
Family
ID=54962048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602214.6U Expired - Fee Related CN204912865U (en) | 2015-08-12 | 2015-08-12 | Split type drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368611A (en) * | 2016-11-16 | 2017-02-01 | 河南广度超硬材料有限公司 | Excavation drill high in precision and efficiency |
-
2015
- 2015-08-12 CN CN201520602214.6U patent/CN204912865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368611A (en) * | 2016-11-16 | 2017-02-01 | 河南广度超硬材料有限公司 | Excavation drill high in precision and efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |