CN204212696U - Rock drill bit - Google Patents
Rock drill bit Download PDFInfo
- Publication number
- CN204212696U CN204212696U CN201420520495.6U CN201420520495U CN204212696U CN 204212696 U CN204212696 U CN 204212696U CN 201420520495 U CN201420520495 U CN 201420520495U CN 204212696 U CN204212696 U CN 204212696U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- rock drill
- cutting portion
- rib
- face
- 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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- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a kind of drill bit, discloses a kind of rock drill bit, and its face, cutting end comprises the cutting portion of at least three; Described cutting portion is swelled by described cutting end face and is formed; Described cutting portion is stretched out by the one end being positioned at described cutting end Middle face; Described cutting portion comprises sunny side and the back; Described sunny side is towards the face of the rotation direction of described rock drill bit, and described sunny side and the back form a cutter rib; Also comprise and be positioned at least one secondary rib of arbitrary cutting portion towards sunny side side; Described secondary rib is swelled by described cutting end face and is formed; The cutter rib of described secondary rib and described cutting portion arranges side by side; The height of described secondary rib reduces gradually along the rotation direction of described rock drill bit.The utility model has the advantage of, long service life, wear-resisting, the driving speed of drill bit is very fast, really can separate the problem of the easy wearing and tearing of current rock drill bit.
Description
Technical field
The utility model relates to a kind of drill bit, particularly a kind of rock drill bit, is more applicable to rock composition complexity, the place of geological condition complexity.
Background technology
Rock drill bit is a kind of drill bit being applicable to bore mill rock, in prior art, because the nonferromagnetic substance of various rock differs greatly, particularly because size particles contained in rock and cementing strength differ greatly, therefore, for various different rock, usually need different types of drill bit.Be necessary that development one has better nonferromagnetic substance thus, and the new drill of the rock breaking capacity of drill bit can be retained.
Utility model content
The utility model is in prior art, and the shortcoming cannot taking into account nonferromagnetic substance and good rock breaking capacity of drill bit, provides a kind of rock drill bit, has multi-shearing face, when carrying out brill mill, can realize good grinding effect while broken rock.
For achieving the above object, the utility model can take following technical proposals:
A kind of rock drill bit, it is characterized in that, its face, cutting end comprises the cutting portion of at least three;
Described cutting portion is swelled by described cutting end face and is formed; Described cutting portion is stretched out by the one end being positioned at described cutting end Middle face;
Described cutting portion comprises sunny side and the back; Described sunny side is towards the face of the rotation direction of described rock drill bit, and described sunny side and the back form a cutter rib;
Also comprise and be positioned at least one secondary rib of arbitrary cutting portion towards sunny side side;
Described secondary rib is swelled by described cutting end face and is formed; The cutter rib of described secondary rib and described cutting portion arranges side by side; The height of described secondary rib reduces gradually along the rotation direction of described rock drill bit; .
In embodiment of the present utility model, the angle of the side of the rotation direction towards described rock drill bit of described secondary rib and the length direction of described rock drill bit is less than the angle of the opposite side of described secondary rib and the length direction of described rock drill bit.
In embodiment of the present utility model, along the rotation direction of described rock drill bit, the angle angle of the side of the rotation direction towards described rock drill bit of described secondary rib and the length direction of described rock drill bit and the angle angle of the opposite side of described secondary rib and the length direction of described rock drill bit little by little close.
In embodiment of the present utility model, described cutting portion comprises at least three secondary ribs towards sunny side side.
In embodiment of the present utility model, described cutting portion comprises five secondary ribs towards sunny side side.
In embodiment of the present utility model, described in be positioned at described cutting portion is parallel to the cutter rib of this cutting portion bearing of trend towards the bearing of trend of the secondary rib of sunny side side.
In embodiment of the present utility model, the width of described secondary rib reduces gradually along the rotation direction of described rock drill bit.
In embodiment of the present utility model, uniform intervals between described cutting portion.
In embodiment of the present utility model, the interval between the cutter rib of described cutting portion and nearest secondary rib is greater than the interval between adjacent pair rib.
The utility model has following remarkable technique effect:
Broken lithology can be good, cutting portion has outstanding cutter rib, effectively can cut rock and make it broken, secondary rib then can by smooth for projection larger for some of rock surface grinding, cutting portion can be effectively prevented to be subject to excessive side knock, thus delayed the wearing and tearing of cutting portion, improve the application life of solid drill.
Accompanying drawing explanation
Fig. 1 carries out by the cutting end face of rock drill bit the structural representation observed.
Fig. 2 is the structural representation of the relative position along the display cutting portion after cutting portion transverse cross sectional and secondary rib.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail.
Embodiment 1
A kind of rock drill bit, as shown in Figure 1, 2, it cuts the cutting portion 100 that end face 001 comprises at least three; Be preferably three.
Described cutting portion 100 is swelled by described cutting end face 001 and is formed; Described cutting portion 100 is stretched out by the one end be positioned in the middle part of described cutting end face 001;
Described cutting portion 100 comprises sunny side 101 and the back 102; Described sunny side is towards the face of the rotation direction of described rock drill bit, and described sunny side 101 forms a cutter rib 103 with the back 102;
Also comprise and be positioned at least one secondary rib 200 of arbitrary cutting portion 100 towards sunny side 101 side;
Described secondary rib 200 is swelled by described cutting end face 001 and is formed; Described secondary rib 200 arranges side by side with the cutter rib 103 of described cutting portion 100; The height of described secondary rib 200 reduces gradually along the rotation direction of described rock drill bit.Cutter rib 103, for rock cutting, cuts out zanjon at smooth rock surface, and these zanjons then can continue to polish by secondary rib 200, improves and bores rock efficiency.
The angle of the side of the rotation direction towards described rock drill bit of described secondary rib 200 and the length direction of described rock drill bit is less than the angle of the opposite side of described secondary rib 200 and the length direction of described rock drill bit.As further preferred, along the rotation direction of described rock drill bit, the angle angle of the side of the rotation direction towards described rock drill bit of described secondary rib 200 and the angle angle of the length direction of described rock drill bit and the opposite side of described secondary rib 200 and the length direction of described rock drill bit is little by little close.
Described cutting portion 100 comprises at least three secondary ribs 200 towards sunny side 101 side.
As further preferred, described cutting portion 100 comprises five secondary ribs 200 towards sunny side 101 side.
The described bearing of trend being positioned at described cutting portion 100 and being parallel to the cutter rib 103 of this cutting portion 100 towards the bearing of trend of the secondary rib 200 of sunny side 101 side.
The width of described secondary rib 200 reduces gradually along the rotation direction of described rock drill bit.
Uniform intervals between described cutting portion 100.
Interval between the cutter rib 103 of described cutting portion 100 and nearest secondary rib 200 is greater than the interval between adjacent pair rib 200.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (1)
1. a rock drill bit, is characterized in that, it cuts the cutting portion (100) that end face (001) comprises at least three;
Described cutting portion (100) is formed by described cutting end face (001) protuberance; Described cutting portion (100) is stretched out by the one end being positioned at described cutting end face (001) middle part;
Described cutting portion (100) comprises sunny side (101) and the back (102); Described sunny side is towards the face of the rotation direction of described rock drill bit, and described sunny side (101) and the back (102) form a cutter rib (103);
Also comprise and be positioned at least one secondary rib (200) of arbitrary cutting portion (100) towards sunny side (101) side;
Described secondary rib (200) is formed by described cutting end face (001) protuberance; Described secondary rib (200) arranges side by side with the cutter rib (103) of described cutting portion (100); The height of described secondary rib (200) reduces gradually along the rotation direction of described rock drill bit.
2. rock drill bit according to claim 1, it is characterized in that, the side of the rotation direction towards described rock drill bit of described secondary rib (200) and the angle of the length direction of described rock drill bit are less than the angle of the described opposite side of secondary rib (200) and the length direction of described rock drill bit.
3. rock drill bit according to claim 2, it is characterized in that, along the rotation direction of described rock drill bit, the angle angle of the side of the rotation direction towards described rock drill bit of described secondary rib (200) and the angle angle of the length direction of described rock drill bit and the opposite side of described secondary rib (200) and the length direction of described rock drill bit is little by little close.
4. rock drill bit according to claim 1, is characterized in that, described cutting portion (100) comprises at least three secondary ribs (200) towards sunny side (101) side.
5. rock drill bit according to claim 4, is characterized in that, described cutting portion (100) comprises five secondary ribs (200) towards sunny side (101) side.
6. rock drill bit according to claim 1, is characterized in that, described in be positioned at described cutting portion (100) is parallel to the cutter rib (103) of this cutting portion (100) bearing of trend towards the bearing of trend of the secondary rib (200) of sunny side (101) side.
7. rock drill bit according to claim 1, is characterized in that, the width of described secondary rib (200) reduces gradually along the rotation direction of described rock drill bit.
8. rock drill bit according to claim 1, is characterized in that, uniform intervals between described cutting portion (100).
9. rock drill bit according to claim 1, is characterized in that, the interval between the cutter rib (103) of described cutting portion (100) and nearest secondary rib (200) is greater than the interval between adjacent pair rib (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520495.6U CN204212696U (en) | 2014-09-11 | 2014-09-11 | Rock drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520495.6U CN204212696U (en) | 2014-09-11 | 2014-09-11 | Rock drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212696U true CN204212696U (en) | 2015-03-18 |
Family
ID=52981377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520495.6U Expired - Fee Related CN204212696U (en) | 2014-09-11 | 2014-09-11 | Rock drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212696U (en) |
-
2014
- 2014-09-11 CN CN201420520495.6U patent/CN204212696U/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: 20150318 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |