CN204640160U - A kind of Novel electric hammer drill bit - Google Patents
A kind of Novel electric hammer drill bit Download PDFInfo
- Publication number
- CN204640160U CN204640160U CN201520340460.9U CN201520340460U CN204640160U CN 204640160 U CN204640160 U CN 204640160U CN 201520340460 U CN201520340460 U CN 201520340460U CN 204640160 U CN204640160 U CN 204640160U
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- Prior art keywords
- bite
- drill
- drill body
- drill bit
- electric hammer
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Abstract
The utility model discloses a kind of Novel electric hammer drill bit, be formed by connecting by drill body and drillstock two parts, its innovative point is: described drill body by front bite and two ends be the ∞ font body of straight end face drill body body on the same axis monolithic molding form; Described drill body head is provided with front bite, and described drill body body is provided with S shape bite; The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.Front bite, these two cuttves of S shape bite and chip discharging structure effectively combine by drill bit of the present utility model, realize two-stage boring, once-forming, and chip removal is unobstructed, realize the smooth of boring cutting face, add the service life of drill bit simultaneously.
Description
Technical field
The utility model belongs to drill bit field, particularly relates to a kind of Novel electric hammer drill bit.
Background technology
Cutter on brill, drilling machine, drilling machine, can cause hole on workpiece or rock.Xu Chi " Goldbach's Conjecture's oil head ": " in 1956, China's bored material was somewhat nervous, and drill bit is not enough." course of work dig pit operation time, drill bit, with vertical shaft rotary, moves axially simultaneously.Soil is cut under the moment of torsion and responsive to axial force of drill bit, is raveled under the extruding and centrifugal action of working-blade, forms native stream and presses to hole wall, simultaneously along page elevator to earth's surface.When native stream moves to without hole wall stop place, because centrifugal action hack is thrown around hole, complete the process of digging pit.
Carbide alloy electric hammer drill main body adopts superior alloy steel, supports the use, be applicable to hole on the hard such as concrete, brick building materials with various electric hammer, is building, installs the boring bar tool that in industry, a kind of purposes is wide, efficiency is high.Electric hammer drill is in use subject to the impact of pulsating, larger torsion, need have certain obdurability, and will there be higher wearability on surface simultaneously, and the service life of electric hammer drill is subject to showing great attention to of users.Although electric hammer drill specification, profile are different, manufacturer is more, and its, length differed in service life, even if the same specification bit bore life-span fluctuation that identical manufacturer manufactures is also larger.
Utility model content
It is low that the technical problems to be solved in the utility model is to solve electric hammer drill borehole strength, and service life is short.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of Novel electric hammer drill bit, is formed by connecting by drill body and drillstock two parts, it is characterized in that:
Described drill body by front bite and two ends be the ∞ font body of straight end face drill body body on the same axis monolithic molding form; Described drill body head is provided with front bite, and described drill body body is provided with S shape bite;
The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.
Further, the structure of described front bite is trapezium structure, is opened in drill body head portion, and described front bite is two, and described two front bites symmetry on drill body head is offered.
Further, described drill body body is provided with horizontally disposed S shape bite along ∞ font position, and described S shape bite and drill body body are monolithic molding, and described S shape bite blade and described drill body body level angle are 30 ~ 45 °.
Further, described front bite is positioned at S shape bite front end, and position is higher than S shape bite 2 ~ 3cm.
Further, the structure of described positioning groove is slender cylinder, and the diameter of described positioning groove and the diameter of cylinder drillstock are than being 1:5.
Further, described drill body body also includes two groove for cuttings, described groove for cuttings extends to bottom from the start-up portion of drill body body in a helical pattern, on arbitrary cross section of drill body body, groove for cuttings is all positioned at position diametrically opposed to each other in drill body plane, and drill body body leading section is divided into four parts by described two groove for cuttings uniformly.
The beneficial effects of the utility model are as follows:
1, front bite, these two cuttves of S shape bite and chip discharging structure effectively combine by drill bit of the present utility model, realize two-stage boring, once-forming, and chip removal is unobstructed, realize the smooth of boring cutting face, add the service life of drill bit simultaneously;
2, drill bit of the present utility model is provided with two groove for cuttings on drill body, described two groove for cuttings extend to bottom from front end in a helical pattern, along on arbitrary cross section of drill body, groove for cuttings is all positioned at position diametrically opposed to each other in drill body plane, the groove for cuttings of this symmetric figure, and row's bevel is long-pending large, it is fast that row cuts speed, not easily causes broken accumulation of cutting;
3, the cylindrical positioning groove offered outside drillstock of the present utility model, such positioning groove design serves fastening effect, Embedded drillstock, effectively can prevent drill bit landing from install machinery;
4; drill bit of the present utility model adopts two front bites and two S shape bites to work in coordination; first front bite carries out destruction object; the operation of reaming; S shape bite carries out drilling action again; accelerate cutting speed, protect again S shape bite simultaneously, increase the service life of drill bit.
Accompanying drawing explanation
If Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Drawing reference numeral: 1, front bite, 2, S shape bite, 3, groove for cuttings, 4, drillstock, 5, positioning groove, 6, drill body body
For making utility model object of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
The structure of Novel electric hammer drill bit of the present utility model as shown in Figure 1, a kind of Novel electric hammer drill bit, be formed by connecting by drill body and drillstock 4 two parts, it is characterized in that: drill body by front bite 1 and two ends be the ∞ font body of straight end face drill body body 6 on the same axis monolithic molding form; Drill body head is provided with front bite 1, and drill body body 6 is provided with S shape bite 2; The structure of drillstock 4 is elongate cylinder body structure, in one end of drillstock 4, is provided with positioning groove 5 near end position.The structure of front bite 1 is trapezium structure, is opened in drill body head portion, and front bite 1 is two, and two front bites 1 symmetry on drill body head is offered.Drill body body 6 being provided with horizontally disposed S shape bite 2, S shape bite 2 is monolithic molding along ∞ font position with drill body body 6, and S shape bite 2 blade and drill body body 6 level angle are 30 ~ 45 °.
Front bite 1 is positioned at S shape bite 2 front end, and position is higher than S shape bite 2,2 ~ 3cm.Drill bit of the present utility model adopts two front bites 1 and two S shape bites 2 to work in coordination; first front bite 1 carries out destruction object; the operation of reaming; S shape bite 2 carries out drilling action again; accelerate cutting speed; protect again S shape bite 2 simultaneously, increase the service life of drill bit.
The structure of positioning groove 5 is slender cylinder, and the diameter of positioning groove 5 and the diameter of cylinder drillstock 4 are than being 1:5.Such positioning groove 5 design serves fastening effect, Embedded drillstock 4, effectively can prevent drill bit landing from install machinery.
Drill body body 6 also includes two groove for cuttings 3, groove for cuttings 3 extends to bottom from the start-up portion of drill body body 6 in a helical pattern, on arbitrary cross section of drill body body 6, groove for cuttings 3 is all positioned at position diametrically opposed to each other in drill body plane, and drill body body 6 leading section is divided into four parts by two groove for cuttings 3 uniformly.The groove for cuttings 3 of this symmetric figure, row's bevel is long-pending large, and it is fast that row cuts speed, not easily causes broken accumulation of cutting.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (6)
1. a Novel electric hammer drill bit, is formed by connecting by drill body and drillstock two parts, it is characterized in that:
Described drill body by front bite and two ends be the ∞ font body of straight end face drill body body on the same axis monolithic molding form; Described drill body head is provided with front bite, and described drill body body is provided with S shape bite;
The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.
2. a kind of Novel electric hammer drill bit according to claim 1, it is characterized in that: the structure of described front bite is trapezium structure, is opened in drill body head portion, described front bite is two, and described two front bites symmetry on drill body head is offered.
3. a kind of Novel electric hammer drill bit according to claim 1, it is characterized in that: described drill body body is provided with horizontally disposed S shape bite along ∞ font position, described S shape bite and drill body body are monolithic molding, and described S shape bite blade and described drill body body level angle are 30 ~ 45 °.
4. a kind of Novel electric hammer drill bit according to claim 1, is characterized in that: described front bite is positioned at S shape bite front end, and position is higher than S shape bite 2 ~ 3cm.
5. a kind of Novel electric hammer drill bit according to claim 1, is characterized in that: the structure of described positioning groove is slender cylinder, and the diameter of described positioning groove and the diameter of cylinder drillstock are than being 1:5.
6. a kind of Novel electric hammer drill bit according to claim 1, it is characterized in that: described drill body body also includes two groove for cuttings, described groove for cuttings extends to bottom from the start-up portion of drill body body in a helical pattern, on arbitrary cross section of drill body body, groove for cuttings is all positioned at position diametrically opposed to each other in drill body plane, and drill body body leading section is divided into four parts by described two groove for cuttings uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340460.9U CN204640160U (en) | 2015-05-25 | 2015-05-25 | A kind of Novel electric hammer drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340460.9U CN204640160U (en) | 2015-05-25 | 2015-05-25 | A kind of Novel electric hammer drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204640160U true CN204640160U (en) | 2015-09-16 |
Family
ID=54092940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520340460.9U Expired - Fee Related CN204640160U (en) | 2015-05-25 | 2015-05-25 | A kind of Novel electric hammer drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204640160U (en) |
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2015
- 2015-05-25 CN CN201520340460.9U patent/CN204640160U/en not_active Expired - Fee Related
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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: 20150916 Termination date: 20160525 |