CN206397441U - High-speed cutting rolls drill bit - Google Patents
High-speed cutting rolls drill bit Download PDFInfo
- Publication number
- CN206397441U CN206397441U CN201720067366.XU CN201720067366U CN206397441U CN 206397441 U CN206397441 U CN 206397441U CN 201720067366 U CN201720067366 U CN 201720067366U CN 206397441 U CN206397441 U CN 206397441U
- Authority
- CN
- China
- Prior art keywords
- head
- drilling rod
- hard alloy
- drill bit
- speed cutting
- 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
Drill bit is rolled the utility model discloses a kind of high-speed cutting, it includes drill body, described drill body includes drillstock (1), drilling rod (2) and cutter head (3), described drilling rod (2) circumferential wall is provided with multiple chip areas (4), cross groove (5) is provided inwardly with the lower end surface of the drilling rod (2), the upper end of the cutter head (3) is provided with cross boss (6), and described cross boss (6) is a tight fit in cross groove (5)；The lower end of the cutter head (3) is provided with up big and down small truncated cone-shaped hard alloy head (7), and it is evenly distributed with multiple cutting edges (8) in groove (9), the circumferential wall of the hard alloy head (7) provided with broken consider to be worth doing between the lower end of drilling rod (2) and the upper end of hard alloy head (7).High-speed cutting rolling flute of drill is not easily blocked, bore operation efficiency high, and not easy to wear.
Description
Technical field
The utility model is related to drilling tool technical field, specifically be a kind of high-speed cutting rolling drill bit.
Background technology
Drill bit is needed to use to be drilled on rock or concrete in the dismounting of rock mining, road maintenance or dilapidated house.And mesh
When preceding drill bit drills on rock, chip removal is a great problem for perplexing drills for stone, because chip removal can freely not cause rate of penetration
Slowly, bit wear is fast, service life is short etc..In order to solve the problems, such as chip removal, to mitigate bit wear, improve bore operation efficiency,
People typically set vertical or spiral helicine chip area, and improve the row of drill bit by increasing the quantity of chip area on drill bit
Bits ability, but the chip area that sets of vertical or helical form during rock drilling easily by the dust of rock block or aggregation, it is necessary to
Dust in cleaning chip area, therefore bore operation is less efficient in time；In addition, the cutter head of the drills for stone of prior art is easy
Abrasion, rock drilling driving speed is slow, and service life is relatively low.
Utility model content
The technical problems to be solved in the utility model be overcome the defect of above prior art there is provided a kind of chip area not
Easily blocking, bore operation efficiency high, and nonabradable high-speed cutting rolling drill bit.
Technical solution of the present utility model is to provide a kind of high-speed cutting rolling drill bit with following structure：It
Including drill body, described drill body includes drillstock, drilling rod and cutter head, and described drilling rod circumferential wall is provided with multiple chip removals
Cross groove is provided inwardly with groove, the lower end surface of the drilling rod, the upper end of the cutter head is provided with cross boss, described
Cross boss is a tight fit in cross groove；The lower end of the cutter head is provided with up big and down small truncated cone-shaped hard alloy head,
And be uniformly distributed between the lower end of drilling rod and the upper end of hard alloy head provided with broken consider to be worth doing in groove, the circumferential wall of the hard alloy head
There are multiple cutting edges.
After above structure, the utility model high-speed cutting rolls drill bit compared with prior art, with advantages below：
Cross boss and the cross groove close-fitting on drilling rod lower end surface that the cutter head of high-speed cutting rolling drill bit passes through upper end
Close, so that the connection of cutter head is more firmly, stably, and provided with broken between the lower end and the upper end of hard alloy head due to drilling rod
Consider groove to be worth doing, the broken bits groove can prevent rock drilling powder from being overstock in chip area, rise when high-speed cutting rolling drilling bit high-speed rotates rock drilling
To destroying or changing the direction or path when rock drilling powder is discharged, blocked so as to avoid rock drilling powder from being overstock in chip area, just
Discharged in time, rapidly in rock drilling powder, therefore high-speed cutting rolling flute of drill is not easily blocked；And hard alloy head
Wearability is strong, and multiple cutting edges are evenly distributed with the circumferential wall of hard alloy head, and the cutting edge can be carried out quickly to rock
Cutting drilling, bore operation efficiency high, and it is not easy to wear.
As an improvement, the bottom of the hard alloy head is provided with fixed in a mounting hole, described mounting hole connect
An impact head, and the bottom of the protruding hard alloy head in lower end of impact head are connect, the outer circle wall of the impact head is provided with
Multiple ball bumps.The impact head is when high-speed cutting rolls drill bit to rock-boring, and metal impurities that can be in crushed rock are kept away
Exempt from high-speed cutting rolling drill edge to be broken.
Preferably, described chip area is the helical form chip area along drilling rod Longitudinal extending, and the upper end of chip area is set
Have along the circumferentially distributed decohere conical surface of drilling rod, the described decohere conical surface is in big top and small bottom taper.The upper end of the chip area
Provided with along the circumferentially distributed decohere conical surface of drilling rod, and the decohere conical surface is in big top and small bottom taper, so upward in rock drilling bits
After discharge, it is easy to the quick outwards separation of rock drilling bits, improves the drilling efficiency of rock.
Preferably, described impact head is the impact head being made of hard alloy, and the inwall of impact head and mounting hole
To be welded and fixed.The impact head that hard alloy is made ensure that the wearability and intensity of impact head, so that high-speed cutting is rolled
The service life of drill bit is longer.
Brief description of the drawings
Fig. 1 is the positive structure schematic that the utility model high-speed cutting rolls drill bit.
Fig. 2 is the polycrystalline substance schematic diagram that the utility model high-speed cutting rolls drill bit.
Fig. 3 is the structural representation that the utility model high-speed cutting rolls drill bit.
Fig. 4 is the A portions mplifying structure schematic diagram of the utility model high-speed cutting rolling drill bit in figure 3.
Fig. 5 is that the utility model high-speed cutting rolls the transverse sectional view that the cutter head of drill bit is connected with drilling rod.
As shown in the figure：
1st, drillstock, 2, drilling rod, 3, cutter head, 4, chip area, 5, cross groove, 6, cross boss, 7, hard alloy head,
8th, cutting edge, 9, broken bits groove, 10, mounting hole, 11, impact head, 12, ball bumps, 13, the decohere conical surface.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5；
The utility model high-speed cutting rolls drill bit, and it includes drill body, and described drill body includes drillstock 1, bored
Bar 2 and cutter head 3, the described circumferential wall of drilling rod 2 are provided with multiple chip areas 4, the lower end surface of the drilling rod 2 and are provided inwardly with ten
Font groove 5, the upper end of the cutter head 3 is provided with cross boss 6, and described cross boss 6 is a tight fit in cross groove 5
It is interior；The lower end of the cutter head 3 is provided with up big and down small truncated cone-shaped hard alloy head 7, and lower end and the hard alloy head 7 of drilling rod 2
Upper end between provided with broken bits groove 9, be evenly distributed with multiple cutting edges 8 in the circumferential wall of the hard alloy head 7.
The bottom of the hard alloy head 7 is provided with a mounting hole 10, described mounting hole 10 and is fixedly connected with an impact
First 11, and the bottom of the protruding hard alloy head 7 in lower end of impact head 11, the outer circle wall of the impact head 11 is provided with more
Individual ball bumps 12.The impact head is when high-speed cutting rolls drill bit to rock-boring, and metal impurities that can be in crushed rock are kept away
Exempt from high-speed cutting rolling drill edge to be broken.
Described chip area 4 is the helical form chip area along the Longitudinal extending of drilling rod 2, and the upper end of chip area 4 is provided with edge brill
The circumferentially distributed decohere conical surface 13 of bar 2, the described decohere conical surface 13 is in big top and small bottom taper surface.The upper end of the chip area
Provided with along the circumferentially distributed decohere conical surface of drilling rod, and the decohere conical surface is in big top and small bottom taper, so upward in rock drilling bits
After discharge, it is easy to the quick outwards separation of rock drilling bits, improves the drilling efficiency of rock.
Described impact head 11 is the impact head being made of hard alloy, and the inwall of impact head 11 and mounting hole 10 is weldering
Connect fixation.
Claims (4)
1. a kind of high-speed cutting rolls drill bit, it includes drill body, described drill body include drillstock (1), drilling rod (2) and
Cutter head (3), described drilling rod (2) circumferential wall is provided with multiple chip areas (4), it is characterised in that：The lower end end of the drilling rod (2)
Cross groove (5) is provided inwardly with face, the upper end of the cutter head (3) is provided with cross boss (6), described cross boss
(6) it is a tight fit in cross groove (5)；The lower end of the cutter head (3) is provided with up big and down small truncated cone-shaped hard alloy head
(7), and between the lower end of drilling rod (2) and the upper end of hard alloy head (7) groove (9) is considered to be worth doing provided with broken, the hard alloy head (7)
Multiple cutting edges (8) are evenly distributed with circumferential wall.
2. high-speed cutting according to claim 1 rolls drill bit, it is characterised in that：The bottom of the hard alloy head (7)
Provided with a mounting hole (10), an impact head (11), and the lower end of impact head (11) are fixedly connected with described mounting hole (10)
The bottom of protruding hard alloy head (7), the outer circle wall of the impact head (11) is provided with multiple ball bumps (12).
3. high-speed cutting according to claim 1 rolls drill bit, it is characterised in that：Described chip area (4) is along drilling rod
(2) the helical form chip area of Longitudinal extending, and the upper end of chip area (4) is provided with along the circumferentially distributed decohere conical surface of drilling rod (2)
(13), the described decohere conical surface (13) is in big top and small bottom taper surface.
4. high-speed cutting according to claim 2 rolls drill bit, it is characterised in that：Described impact head (11) is to use hard
The impact head that alloy is made, and the inwall of impact head (11) and mounting hole (10) is to be welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067366.XU CN206397441U (en) | 2017-01-19 | 2017-01-19 | High-speed cutting rolls drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067366.XU CN206397441U (en) | 2017-01-19 | 2017-01-19 | High-speed cutting rolls drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397441U true CN206397441U (en) | 2017-08-11 |
Family
ID=59519349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720067366.XU Expired - Fee Related CN206397441U (en) | 2017-01-19 | 2017-01-19 | High-speed cutting rolls drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639100A (en) * | 2018-07-23 | 2018-10-12 | 深圳圣斯尔电子技术有限公司 | Addendum cone and track circuit shunting tester |
-
2017
- 2017-01-19 CN CN201720067366.XU patent/CN206397441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639100A (en) * | 2018-07-23 | 2018-10-12 | 深圳圣斯尔电子技术有限公司 | Addendum cone and track circuit shunting tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315166 Houlong Village, Longguan Township, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Shendian Tools Co.,Ltd. Address before: 315166 Houlong Village, Longguan Township, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Ningbo Mac Panther Tools Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20220119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |