CN204640159U - A kind of major part electric hammer drill - Google Patents
A kind of major part electric hammer drill Download PDFInfo
- Publication number
- CN204640159U CN204640159U CN201520339550.6U CN201520339550U CN204640159U CN 204640159 U CN204640159 U CN 204640159U CN 201520339550 U CN201520339550 U CN 201520339550U CN 204640159 U CN204640159 U CN 204640159U
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- drill
- drillstock
- electric hammer
- major part
- cutting
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Abstract
The utility model discloses a kind of major part electric hammer drill, be formed by connecting by drill body and drillstock two parts, its innovative point is: described drill body by cutting part and fluted column body drill body body on the same axis monolithic molding form, described fluted column body drill body body is provided with air vent; The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.Cutting part, the drill body body of fluted column body structure, air vent effectively combine by drill bit of the present utility model, and greatly, drilling efficiency is high for drill bit and absorption surface area, and radiating rate is fast, adds the service life of drill bit simultaneously.
Description
Technical field
The utility model belongs to drill bit field, particularly relates to a kind of major part electric hammer drill.
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, meanwhile, the aperture of electric hammer drill common on market is less, and operating efficiency is low.
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, and inefficiency.
For solving the problems of the technologies described above, the utility model provides following technical scheme: a kind of major part electric hammer drill, be formed by connecting by drill body and drillstock two parts, it is characterized in that: described drill body by cutting part and fluted column body drill body body on the same axis monolithic molding form, described fluted column body drill body body is provided with air vent; The structure of described drillstock is elongate cylinder body structure, in one end of drillstock, near end position, is provided with positioning groove.
Further, described cutting part is made up of front bite and cutting body two parts, described cutting body is triangular prism structure, the longest edge of described triangular prism is provided with front bite, described front bite and cutting body are one of the forming, the front bite place of described triangular prism cutting body front end be 15 ~ 35 ° with the angle on another both sides.
Further, the structure of described air vent is cylinder, and the height of described air vent is consistent with the diameter of described fluted column body drill body body.
Further, before described fluted column body drill body body, the diameter of end is than being 2:1:1.5.
Further, the structure of described positioning groove is slender cylinder, and described positioning groove is the groove offering two semicircle strips along cylinder drillstock periphery.The diameter of described positioning groove and the diameter of cylinder drillstock are than being 1:5.
The beneficial effects of the utility model are as follows:
1, cutting part, the drill body body of fluted column body structure, air vent effectively combine by drill bit of the present utility model, and greatly, drilling efficiency is high for drill bit and absorption surface area, and radiating rate is fast, adds the service life of drill bit simultaneously;
2, drill body body of the present utility model adopts fluted column body structure, before described fluted column body drill body body, in, the diameter of end is than being 2:1:1.5.This special structure had both expanded the contact surface of drill bit and workpiece, increased work efficiency, and turn increased the stability of the entirety of drill bit, increased the service life of drill bit;
3, the positioning groove of the semicircle strip 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 body body of the present utility model offers air vent, is conducive to dispelling the heat timely in bit operation process, avoid drill bit because the too high appearance fracture of heat.
Accompanying drawing explanation
If Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Drawing reference numeral: 1, cutting part, 2, air vent, 3, drillstock, 4, positioning groove, 5, front bite, 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 major part electric hammer drill of the present utility model as shown in Figure 1, a kind of major part electric hammer drill, be formed by connecting by drill body and drillstock 3 two parts, it is characterized in that: drill body by cutting part 1 and fluted column body drill body body 6 on the same axis monolithic molding form, fluted column body drill body body 6 is provided with air vent 2; The structure of drillstock 3 is elongate cylinder body structure, in one end of drillstock 3, is provided with positioning groove 4 near end position.Cutting part 1 is made up of front bite 5 and cutting body two parts, cutting body is triangular prism structure, the longest edge of triangular prism is provided with front bite 5, front bite 5 is one of the forming with cutting body, front bite 5 place of triangular prism cutting body front end while be 15 ~ 35 ° with the angle on another both sides, before fluted column body drill body body 6, in, the diameter of end is than being 2:1:1.5.This special structure had both expanded the contact surface of drill bit and workpiece, increased work efficiency, and turn increased the stability of the entirety of drill bit, increased the service life of drill bit.
The structure of air vent 2 is cylinder, and the height of air vent 2 is consistent with the diameter of fluted column body drill body body 6, is conducive to dispelling the heat timely in bit operation process, avoids drill bit because the too high appearance fracture of heat.
The structure of positioning groove 4 is slender cylinder, and positioning groove 4 is the groove offering two semicircle strips along cylinder drillstock periphery.The diameter of positioning groove 4 and the diameter of cylinder drillstock are than being 1:5, and such positioning groove 4 design serves fastening effect, Embedded drillstock, effectively can prevent drill bit landing from install machinery.
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 (5)
1. a major part electric hammer drill, is formed by connecting by drill body and drillstock two parts, it is characterized in that:
Described drill body by cutting part and fluted column body drill body body on the same axis monolithic molding form, described fluted column body drill body body is provided with air vent;
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 major part electric hammer drill according to claim 1, it is characterized in that: described cutting part is made up of front bite and cutting body two parts, described cutting body is triangular prism structure, the longest edge of described triangular prism is provided with front bite, described front bite and cutting body are one of the forming, the front bite place of described triangular prism cutting body front end be 15 ~ 35 ° with the angle on another both sides.
3. a kind of major part electric hammer drill according to claim 1, is characterized in that: the structure of described air vent is cylinder, and the height of described air vent is consistent with the diameter of described fluted column body drill body body.
4. a kind of major part electric hammer drill according to claim 1, is characterized in that: before described fluted column body drill body body, in, the diameter of end is than being 2:1:1.5.
5. a kind of major part electric hammer drill according to claim 1, is characterized in that: the structure of described positioning groove is slender cylinder, and described positioning groove is the groove offering two semicircle strips along cylinder drillstock periphery;
The diameter of described positioning groove and the diameter of cylinder drillstock are than being 1:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339550.6U CN204640159U (en) | 2015-05-25 | 2015-05-25 | A kind of major part electric hammer drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339550.6U CN204640159U (en) | 2015-05-25 | 2015-05-25 | A kind of major part electric hammer drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204640159U true CN204640159U (en) | 2015-09-16 |
Family
ID=54092939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520339550.6U Expired - Fee Related CN204640159U (en) | 2015-05-25 | 2015-05-25 | A kind of major part electric hammer drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204640159U (en) |
-
2015
- 2015-05-25 CN CN201520339550.6U patent/CN204640159U/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 |