CN110281398A - A kind of efficient electric hammer drill of chip removal - Google Patents
A kind of efficient electric hammer drill of chip removal Download PDFInfo
- Publication number
- CN110281398A CN110281398A CN201910696533.0A CN201910696533A CN110281398A CN 110281398 A CN110281398 A CN 110281398A CN 201910696533 A CN201910696533 A CN 201910696533A CN 110281398 A CN110281398 A CN 110281398A
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- China
- Prior art keywords
- drill
- electric hammer
- drillstock
- drill body
- blade
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- 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.)
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Links
- 238000005520 cutting process Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 4
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/02—Percussive tool bits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Drilling Tools (AREA)
Abstract
A kind of efficient electric hammer drill of chip removal, it include drill, drillstock and the drill body made of cemented carbide material, and drill body and drillstock are integrally formed, drill is embedded in the end of drill body, wherein, the periphery of the drill body is equipped with the chip space and three groups of cutting edges adjacent with chip space of three groups of spirals trend, there is angle between cutting edge and chip space, the outer surface of the drillstock is equipped with the gain and straight trough of rounded array distribution, when drilling, electric hammer drill is installed on electric hammer by straight trough on drillstock and gain, chip space has three groups, chip space uses trapezoidal groove body, increase the clast saturation of every group of chip space, improve chip removal efficiency, drill body uses hard alloy, it can avoid drill body unstable wear due to long-time high-speed rotation is generated heat, improve the service life of electric hammer drill.
Description
Technical field
The present invention relates to electric hammer drill field, espespecially a kind of efficient electric hammer drill of chip removal.
Background technique
Electric hammer drill is mainly matched with various electric hammers, is to build suitable for drilling on the hard building materials such as concrete, brick
It builds, the boring bar tool that a kind of purposes is wide, high-efficient in industry is installed.Electric hammer drill is rushed by pulsating in use
It hits, generates biggish torsion, in addition, existing electric hammer drill chip removal is inefficient, suitable power small electric hammers tool, such as electricity into shape
Hammer into shape implement power it is excessive, then will appear chip removal not in time, cutting punching when idle work it is excessive, and drill bit because revolving speed it is too fast and easy
Fever deformation, therefore heat resistance to drill body material therefor and wearability also have higher requirements.
Summary of the invention
To solve the above problems, the present invention provides, a kind of chip removal is efficient, electric hammer drill with long service life.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of efficient electric hammer drill of chip removal, include bore
Knife, drillstock and the drill body using cemented carbide material production, and drill body and drillstock are integrally formed, drill is embedded in the end of drill body
Portion, wherein the periphery of the drill body is equipped with the chip space and three groups of cutting edges adjacent with chip space of three groups of spirals trend, cuts
Cutting has angle between sword and chip space, the outer surface of the drillstock is equipped with the gain and straight trough of rounded array distribution.
Specifically, the drill includes three groups of blades from drill body end face center to cutting edge direction song to extension, institute
It states blade to be disposed adjacent with chip space, and the two sides of blade are the unequal inclined surface of two surface areas.
Specifically, the blade includes the first blade surface, the second blade surface, outer end and the second blade surface of first blade surface
Outer end is corresponding to be spliced to form point of a knife, and the second blade surface is the curved surface being recessed to point of a knife central axes direction, and the first blade surface is to knife
Sharp central axes direction convex surface outstanding.
Specifically, first blade surface, the second blade surface are arcwall face；
Specifically, on three groups of blades the first blade surface, the second blade surface, the point of a knife end adjacent with drill body end face center to
The central axes direction of drill body upwardly extends and is mutually spliced to form tip.
Specifically, the gain and straight trough are disposed as two, and two gains along drillstock diametrically, two straight trough edges
Drillstock is diametrically.
Specifically, the angle between the cutting edge side and chip removal groove bottom is 120 ° -150 °.
Specifically, the drill body material therefor is 40Cr.
The beneficial effects of the present invention are: electric hammer drill is installed on electric hammer by straight trough on drillstock and gain,
Chip space has three groups, so that groove top width is greater than slot bottom width, and then increase the solid capacity of every group of chip space, improves chip removal efficiency,
The chip removal efficiency of electric hammer drill is set to reach the requirement being enough suitable for high power electric hammer, drill body uses hard alloy, can avoid boring
Body unstable wear due to long-time high-speed rotation is generated heat, improves the service life of electric hammer drill.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is sectional view at A-A in Fig. 1 of the present invention.
Fig. 3 is sectional view at B-B in Fig. 1 of the present invention.
Fig. 4 is left view of the present invention.
Drawing reference numeral explanation: 1. drill bodies；2. drillstock；3. drill；4. chip space；5. cutting edge；6. gain；7. straight trough；8.
Blade；31. the first blade surface；32. the second blade surface.
Specific embodiment
It please refers in Fig. 1-overall structure of the present invention, Fig. 3-Fig. 1 of the present invention at B-B shown in sectional view, the present invention
It include the drill body 1 of drill 3, drillstock 2 and use cemented carbide material production about a kind of efficient electric hammer drill of chip removal,
And drill body 1 and drillstock 2 are integrally formed, drill 3 is embedded in the end of drill body 1, wherein the periphery of the drill body 1 is equipped with three groups of spiral shells
The chip space 4 and three groups of cutting edges 5 adjacent with chip space 4 for revolving trend have angle, institute between cutting edge 5 and chip space 4
The outer surface for stating drillstock 2 is equipped with the gain 6 and straight trough 7 of rounded array distribution.
Using the above scheme, 2 surface of drillstock is provided with the gain 6 and straight trough 7 being spaced apart, wherein straight trough 7 is in drillstock 2
Directly blocked when being packed into electric hammer mounting hole, gain 6 is blocked after drillstock 2 is packed into electric hammer mounting hole by collet, by gain 6 with
Used while both straight troughs 7, realize being stably connected between electric hammer drill and electric hammer, 1 surface of drill body offer three groups it is arranged side by side
The chip space 4 of spiral trend, the clast generated in boring procedure enter in chip space 4, the mean allocation in three groups of chip spaces 4,
The export rate for increasing clast has angle between 5 side of cutting edge and chip space 4, and 4 groove top width of chip space is greater than slot bottom
Width, it is possible to increase the clast saturation of every group of chip space 4, and then increase the solid capacity of every group of chip space 4, it avoids because of chip space 4
The problem of group number increases and reduces 4 clast saturation of every group of chip space, further increases chip removal efficiency, makes the row of electric hammer drill
Bits efficiency reaches the requirement being enough suitable for high power electric hammer, and drill body 1 is made of hard alloy, since hard alloy has firmly
A series of spend that high, wear-resisting, intensity and toughness are preferable, heat-resisting, corrosion-resistant etc. excellent performances, especially its high rigidity and wear-resisting
Property, even if 500 DEG C at a temperature of be held essentially constant, can avoid drill body 1 because long-time high-speed rotation generate heat due to aggravate grind
Damage, improves the service life of electric hammer drill.
It please refers to shown in Fig. 1-overall structure of the present invention, Fig. 4-left view of the present invention, specifically, the drill 3
It include three groups of blades 8 from drill body end face center to 5 direction song of cutting edge to extension, the blade 8 is adjacent with chip space 4 to be set
It sets, and the two sides of blade 8 are the unequal inclination of two surface areas.
Using the above scheme, drill includes three groups of blades 8, improves the boring capacity of drill bit, accelerates bore rate.
Specifically, the blade 8 includes the first blade surface 31, the second blade surface 32, the outer end of first blade surface 31 and the
The outer end correspondence of two blade surfaces 32 is spliced to form point of a knife, and the second blade surface 32 is the curved surface being recessed to point of a knife central axes direction, and the
One blade surface 31 is to point of a knife central axes direction convex surface outstanding.
In the present embodiment, the material of drill 3 is import alloy, and the first blade surface 31 is the convex surface of direction to the left, the second blade surface
32 be the concave surface of direction to the left, and 4 rotation direction of chip space is all left-handed.
Using the above scheme, the bending direction of blade 8 is consistent with the hand of spiral of cutting edge 5, and the angle between blade 8 is
It 120 °, is docked so that being formed between chip space 4 and every group of blade 8, the clast that boring procedure generates is taken advantage of a situation between three groups of blades 8
It imports in chip space 4, it is possible to increase the export rate of clast.
Specifically, first blade surface 31, the second blade surface 32 are arcwall face；
Using the above scheme, arcwall face is convenient for conducting clast.
Specifically, the first blade surface 31, the second blade surface 32, point of a knife are adjacent with 1 end face center of drill body on three groups of blades
End upwardly extends to the central axes direction of drill body 1 and is mutually spliced to form tip.
Using the above scheme, 8 one end of blade is tip, is conducive to drill
It please refers in Fig. 2-Fig. 1 of the present invention at A-A shown in sectional view, specifically, the gain 6 and straight trough 7 are disposed as
Two, and two gains 6 along drillstock 2 diametrically, two straight troughs 7 along drillstock 2 diametrically.
In the present embodiment, the gain 6 is semicircle groove body, and the straight trough 7 is trapezoidal groove body.
Using the above scheme, semicircle groove body is set by gain 6, straight trough 7 is set as trapezoidal groove body, to pacify with electric hammer
Fill hole and collet cooperation.
Specifically, the angle between 5 side of cutting edge and the surface of drillstock 2 is 120 ° -150 °.
In the present embodiment, the angle between 5 side of cutting edge and the surface of drillstock 2 be should not be too large, and angle crosses conference increasing
Cutting edge 5 is worn, and can reduce chip removal efficiency instead, it is preferable that the angle between cutting edge 5 and the central axis of drillstock 2 is 130
±5°。
Specifically, 1 material therefor of drill body is 40Cr.
Using the above scheme, 40Cr has good cutting ability, has good comprehensive mechanical property after modifier treatment,
Good low-temperature impact toughness and low notch sensitivity, increase the service life of electric hammer drill.
Embodiment of above be only preferred embodiments of the present invention will be described, not to the scope of the present invention into
Row limits, and without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical side of the invention
The various changes and improvements that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (8)
1. a kind of efficient electric hammer drill of chip removal, which is characterized in that include drill, drillstock and use cemented carbide material system
The drill body of work, and drill body and drillstock are integrally formed, drill is embedded in the end of drill body, wherein the periphery of the drill body is equipped with three
The chip space and three groups of cutting edges adjacent with chip space of group spiral trend, have angle, institute between cutting edge and chip space
The outer surface for stating drillstock is equipped with the gain and straight trough of rounded array distribution.
2. the efficient electric hammer drill of a kind of chip removal according to claim 1, which is characterized in that the drill includes three groups
Blade from drill body end face center to from cutting edge direction song to extension, the blade are disposed adjacent with chip space, and the two of blade
Side is the unequal inclined surface of two surface areas.
3. the efficient electric hammer drill of a kind of chip removal according to claim 2, which is characterized in that the blade includes the first sword
Face, the second blade surface, the outer end of first blade surface is corresponding with the outer end of the second blade surface to be spliced to form point of a knife, and the second blade surface be to
The curved surface of point of a knife central axes direction recess, and the first blade surface is to point of a knife central axes direction convex surface outstanding.
4. the efficient electric hammer drill of a kind of chip removal according to claim 3, which is characterized in that first blade surface, the second blade surface
It is arcwall face；
5. the efficient electric hammer drill of a kind of chip removal according to claim 4, which is characterized in that the first sword on three groups of blades
Face, the second blade surface, the point of a knife end adjacent with drill body end face center upwardly extend to the central axes direction of drill body and mutually splice
Form tip.
6. the efficient electric hammer drill of a kind of chip removal according to claim 1, which is characterized in that the gain and straight trough are all provided with
Be set to two, and two gains along drillstock diametrically, two straight troughs along drillstock diametrically.
7. the efficient electric hammer drill of a kind of chip removal according to claim 1, which is characterized in that the cutting edge side and row
The angle considered to be worth doing between groove bottom is 120 ° -150 °.
8. the efficient electric hammer drill of a kind of chip removal according to claim 1, which is characterized in that the drill body material therefor is
40Cr。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696533.0A CN110281398A (en) | 2019-07-30 | 2019-07-30 | A kind of efficient electric hammer drill of chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696533.0A CN110281398A (en) | 2019-07-30 | 2019-07-30 | A kind of efficient electric hammer drill of chip removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110281398A true CN110281398A (en) | 2019-09-27 |
Family
ID=68024238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910696533.0A Pending CN110281398A (en) | 2019-07-30 | 2019-07-30 | A kind of efficient electric hammer drill of chip removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110281398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114043632A (en) * | 2021-12-02 | 2022-02-15 | 方大控股有限公司 | Electric hammer drill bit and electric hammer drill |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6446741B1 (en) * | 1999-09-16 | 2002-09-10 | Gebrueder Heller Dinklage Gmbh | Rock drill |
| CN1450949A (en) * | 2000-03-15 | 2003-10-22 | 株式会社宫永 | Drill bit |
| CN201635661U (en) * | 2010-04-01 | 2010-11-17 | 宁波麦克潘特电动工具有限公司 | Three-blade drill |
| CN106270665A (en) * | 2016-09-20 | 2017-01-04 | 方大控股有限公司 | A kind of triangle alloy cutter head |
| TWM548060U (en) * | 2016-12-14 | 2017-09-01 | Shehkai Precision Co Ltd | Concrete drill bit |
| CN208215702U (en) * | 2018-05-04 | 2018-12-11 | 新余市盛鑫五金工具有限公司 | A kind of electric hammer drill hammer |
| CN208663703U (en) * | 2018-05-11 | 2019-03-29 | 方大控股有限公司 | A kind of electric hammer drill of quick chip removal |
| CN211221446U (en) * | 2019-07-30 | 2020-08-11 | 方大控股有限公司 | Chip removal efficient electric hammer drill bit |
-
2019
- 2019-07-30 CN CN201910696533.0A patent/CN110281398A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6446741B1 (en) * | 1999-09-16 | 2002-09-10 | Gebrueder Heller Dinklage Gmbh | Rock drill |
| CN1450949A (en) * | 2000-03-15 | 2003-10-22 | 株式会社宫永 | Drill bit |
| CN201635661U (en) * | 2010-04-01 | 2010-11-17 | 宁波麦克潘特电动工具有限公司 | Three-blade drill |
| CN106270665A (en) * | 2016-09-20 | 2017-01-04 | 方大控股有限公司 | A kind of triangle alloy cutter head |
| TWM548060U (en) * | 2016-12-14 | 2017-09-01 | Shehkai Precision Co Ltd | Concrete drill bit |
| CN208215702U (en) * | 2018-05-04 | 2018-12-11 | 新余市盛鑫五金工具有限公司 | A kind of electric hammer drill hammer |
| CN208663703U (en) * | 2018-05-11 | 2019-03-29 | 方大控股有限公司 | A kind of electric hammer drill of quick chip removal |
| CN211221446U (en) * | 2019-07-30 | 2020-08-11 | 方大控股有限公司 | Chip removal efficient electric hammer drill bit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114043632A (en) * | 2021-12-02 | 2022-02-15 | 方大控股有限公司 | Electric hammer drill bit and electric hammer drill |
| CN114043632B (en) * | 2021-12-02 | 2023-12-08 | 方大控股有限公司 | Electric hammer drill bit and electric hammer drill |
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