CN2050069U - Yzyh type drill bit - Google Patents
Yzyh type drill bit Download PDFInfo
- Publication number
- CN2050069U CN2050069U CN86209887U CN86209887U CN2050069U CN 2050069 U CN2050069 U CN 2050069U CN 86209887 U CN86209887 U CN 86209887U CN 86209887 U CN86209887 U CN 86209887U CN 2050069 U CN2050069 U CN 2050069U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- pricker
- bore bit
- bit
- rock drilling
- 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.)
- Withdrawn
Links
- 239000011435 rock Substances 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 235000010676 Ocimum basilicum Nutrition 0.000 claims description 2
- 240000007926 Ocimum gratissimum Species 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
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- Earth Drilling (AREA)
Abstract
The utility model relates to a novel bore bit for rock drilling. It is divided into a straight groove type and a wave type. Compared with the drill bit of the straight-line-shaped drill bit, the drill bit of the straight-line-shaped groove type drill bit is different in that the drill bit edge is provided with the groove. The upper part of the drill bit of the wave type drill bit is provided with convex-concave alternate shapes, and the shapes of all concave shapes are the same as much as possible. The drill bit is ground after a proper depth is drilled in the rock drilling process, and the drill bit is ground into a straight groove type. The YZYH type drill bit has the advantages of long service life, high rock drilling speed, good integrity, simple welding process, stable quality, easy assembly of drill rods, convenient grinding, easy drill rod pulling during rock drilling and low tunneling dust concentration.
Description
The utility model relates to one of drilling tool---the shaped design and the use of bore bit.
In the prior art, the employed bore bit of rock drilling mainly contains two kinds, i.e. straight bit and Columnar tooth drill rod head.Their application life and cutting rates in the quartz vein of the luciite of hard granite gneiss and toughness and strong abrasion are as follows:
By last two tables as seen, the life-span of straight bit and Columnar tooth drill rod head and cutting rate are all lower, the cutting rate of Columnar tooth drill rod head in above three kinds of rocks is not as good as the straight bit cutting rate, the rock drilling test also shows, the driving dust concentration of straight bit is 2.22 milligrams/cubic metre, and the driving dust concentration of Columnar tooth drill rod head is 1.9 milligrams/cubic metre.Columnar tooth drill rod head scarfweld technology is cumbersome; processing technology is strict; and difficult quality guarantee; no matter be welding-on, or scarfweld, in rock drilling, all often have and take off post, phenomenon generation disconnected post, that contract post; after gauge wear exposes root; the post that takes off, breaks is even more serious, mining group pricker difficulty, and the pricker difficulty is pulled out in the driving rock drilling.And straight bit welding-on technology is fairly simple, and good integrity, quality are easily protected stable, and the group pricker is easy, and having made pure can reconditioning.Emerging chevron bore bit is unfavorable for reconditioning in the prior art, and the application life of bore bit and cutting rate are also lower.
For rock drilling life-span of improving bore bit and speed, reduction dust, simplify bore bit welding-on technology, group pricker technology and bore bit thinning technique, make pricker sheet good integrity, steady quality, and it is easy to pull out pricker in the rock drilling process, and the utility model has been created a kind of novel bore bit--yZyH type bore bit (with one, post, excellent, close four word phonetic prefixs and get yZyH).
YZyH type bore bit can be divided into a word groove type and a wave, the pricker sheet of straight bit has following identical part in the pricker plate shape of one word groove type bore bit and the prior art: promptly all have chisel edge, the numerical value of its basil, clearance angle, chisel edge width, chisel edge radius, pricker sheet height, pricker leaf length selects to follow same principle.The difference of the pricker sheet of one word groove type bore bit and the pricker plate shape of straight bit is: fluted on its chisel edge, 1 represented groove shapes is identical as far as possible among the shape of groove and Fig. 1.That the three-view diagram that Fig. 1, Fig. 2, Fig. 3 constituted is represented is a kind of of a word groove type bore bit pricker sheet, and Fig. 1 is that its front view, Fig. 2 are that its left view, Fig. 3 are its vertical view.1 expression groove, 2 expression chisel edge radiuses, 3 expression pricker sheet clearance angles, 4 expression bit tapers, 5 expression pricker sheet height, 6 expression pricker sheet width, 7 expression pricker leaf length among the figure.One word groove type bore bit the pricker sheet on groove number and different and different by purposes of the big I of each groove, but groove shapes is identical as far as possible.
The pricker sheet of wave bore bit and the pricker sheet of chevron bore bit, the numerical value system of selection of its clearance angle, pricker leaf length, pricker sheet width, pricker sheet height is identical.Convex, the spill on the pricker sheet top of wave bore bit is called crest, the trough of wave bore bit.The shape of among the shape of crest, trough and Fig. 42 ' and 1 ' is identical as far as possible.That the three-view diagram that Fig. 4, Fig. 5, Fig. 6 constituted is represented is a kind of of wave bore bit pricker sheet, and Fig. 4 is that its front view, Fig. 5 are that its left view, Fig. 6 are its vertical views.Among the figure 2 of expression pricker sheet top projection ' be called crest, 1 of expression pricker sheet top negative area ' be called trough.3 ' expression pricker sheet clearance angle, the height of 4 ' expression pricker sheet, 5 ' expression pricker sheet width, the length of 6 ' expression pricker sheet.
The reconditioning as follows in the rock drilling process of yZyH type bore bit: carry out reconditioning after bore bit was cut a hole proper depth, reconditioning continues to use after becoming a word groove type bore bit again.
The driving bore bit life-span of yZyH type bore bit, driving cutting rate and dust concentration such as following table:
Data declaration in the table: the application life of yZyH type bore bit and cutting rate height, dust concentration is low, and in addition, welding-on technology is fairly simple, and good integrity, quality are easily protected stable, and the group pricker is easy, and making pure can reconditioning, and it is easy to pull out pricker during the driving rock drilling.YZyH type bore bit compliance is strong: applicable to the rock rock drilling of various different hardness, different toughness and different abrasions and cranny development; Can be used for various holes to rock drilling of hand pricker and mechanical rock drilling.
Figure of description is described as follows: that the three-view diagram that Fig. 1, Fig. 2, Fig. 3 constitute is represented is a kind of of a word groove type bore bit pricker sheet, and Fig. 1 is that its front view, Fig. 2 are that its left view, Fig. 3 are its vertical view.Among the figure: 1 expression groove, 2 expression chisel edge radiuses, 3 expression pricker sheet clearance angles, 4 expression bit tapers, 5 expression pricker sheet height, 6 expression pricker sheet width, 7 expression pricker leaf length, chain-dotted line is represented the bore bit center line.That the three-view diagram that Fig. 4, Fig. 5, Fig. 6 constitute is represented is a kind of of wave bore bit pricker sheet, Fig. 4 is that its front view, Fig. 5 are that its left view, Fig. 6 are its vertical views, 1 expression trough, 2 expression crests, 3 expression pricker sheet clearance angles, 4 expression pricker sheet height, 5 expression pricker sheet width, 6 expression pricker leaf length among the figure, chain-dotted line is represented the center line of bore bit.
Most preferred embodiment of the present utility model is as follows: adopt the yG11c carbide alloy as pricker sheet material, be processed into a word groove type bore bit, can obtain best resultant effect.
Claims (1)
- The utility model is a kind of bore bit that is used for rock drilling.It can be subdivided into a word groove type and a wave again.The pricker sheet of straight bit has following identical part in the pricker sheet of one word groove type bore bit and the prior art: promptly all have chisel edge, same principle is followed in the selection of its basil, clearance angle, chisel edge width, chisel edge length, chisel edge radius, pricker sheet height.It is characterized in that: the pricker sheet of a word groove type bore bit has two grooves on its chisel edge.Two grooves distribute in the center line bilateral symmetry of bore bit, and bottom portion of groove is a little less than the top edge of pricker film trap on the pricker body or tangent with it.The pricker sheet of wave bore bit is compared with the pricker sheet of chevron bore bit of the prior art, and the alternate shape of convex-concave is all arranged at its pricker sheet top, it is characterized in that: the pricker sheet of wave bore bit, two trough distributes in the center line bilateral symmetry of bore bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86209887U CN2050069U (en) | 1986-12-08 | 1986-12-08 | Yzyh type drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86209887U CN2050069U (en) | 1986-12-08 | 1986-12-08 | Yzyh type drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050069U true CN2050069U (en) | 1989-12-27 |
Family
ID=4811683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86209887U Withdrawn CN2050069U (en) | 1986-12-08 | 1986-12-08 | Yzyh type drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109562509A (en) * | 2016-08-02 | 2019-04-02 | 喜利得股份公司 | Flat chisel |
-
1986
- 1986-12-08 CN CN86209887U patent/CN2050069U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109562509A (en) * | 2016-08-02 | 2019-04-02 | 喜利得股份公司 | Flat chisel |
| US11673246B2 (en) | 2016-08-02 | 2023-06-13 | Hilti Aktiengesellschaft | Flat chisel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |