CN101571032A - Mine hard alloy tooth - Google Patents
Mine hard alloy tooth Download PDFInfo
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- CN101571032A CN101571032A CNA2009100270141A CN200910027014A CN101571032A CN 101571032 A CN101571032 A CN 101571032A CN A2009100270141 A CNA2009100270141 A CN A2009100270141A CN 200910027014 A CN200910027014 A CN 200910027014A CN 101571032 A CN101571032 A CN 101571032A
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Abstract
The invention provides a mine hard alloy tooth, which comprises a tooth body and a tooth crown, wherein the tooth crown is arranged on the tooth body and comprises a top and a lateral part, and the outline of the top of the tooth crown has a shape of a convex arc line; the outline of the lateral part of the tooth crown consists of three sections, the first section of the outline has a shape of a straight line, a concave arc line or a convex arc line, the second section of the outline has a shape of a straight line, a concave arc line or a convex arc line, the third section of the outline has a shape of a straight line, a concave arc line or a convex arc line, and the first section of the outline, the second section of the outline and the third section of the outline are in transitional engagement with one another. The multilayer mine hard alloy tooth not only can improve the tooth-revealing height of the hard alloy, but also can conveniently control the contact area of the hard alloy tooth and a broken rock stratum; and the mine hard alloy tooth is widely applied to mines, water wells and geological drilling.
Description
Technical field
The present invention relates to the hard-metal insert used on a kind of drill bit of digging up mine, belong to boring tool manufacturing technology field, mine.
Background technology
At present, selecting for use of mine hard alloy tooth, the crown shape of carbide button is selected single, or hemi-spherical ended shape insert, or blunt conical-ended shape insert, or plays the shape tooth, also is the combination of these several carbide buttons on the cloth tooth.In the design of hard-metal insert, hard alloy spherical-teeth is called the individual layer tooth, i.e. parameter only on certain height grinningly, bulb R; Carbide alloy blunt conical-ended shape insert and bullet shape tooth are called double-deck tooth, and two parameters are promptly arranged on certain height grinningly, and bulb R and cone angle or two bulb R form.Chinese patent 00230273.X discloses a kind of drilling drill bit hard-metal insert, includes denticle and crown, crown be shaped as hemispherical or wedge shape or taper or spoon shape.
Traditional mine hard alloy ball tooth, Dui Ying drilling tool can bear big the pressure of the drill and moment of torsion in the use, but the drilling speed of drilling tool is lower.The carbide alloy conical tooth with play the shape tooth, though the crown of carbide button increases, the contact area of carbide button and fractured rock is little, and changes limitedly, though drilling tool speed is very fast, the wearing and tearing of carbide button are very fast, the application life of drilling tool is not high.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, the hard-metal insert of using on a kind of drill bit of digging up mine is provided, be intended to change single that hard-metal insert selects, improve the crown height of carbide button, the contact area of control carbide button and fractured rock, guarantee that effectively drilling tool has under the prerequisite in good application life, improves the operating efficiency of drilling tool greatly.
Purpose of the present invention is achieved through the following technical solutions:
Mine hard alloy tooth comprises denticle and crown, and crown is arranged on the denticle, and characteristics are: described crown comprises top and sidepiece, and the profile at crown top is the camber line of evagination; The profile of crown sidepiece constitutes by three sections, first section profile linearly or the camber line of the camber line of indent or evagination, second section profile linearly or the camber line of the camber line of indent or evagination, the 3rd section profile linearly or the camber line of the camber line of indent or evagination, first section profile, second section profile, the 3rd section mutual transition and linkage of profile.
Further, above-mentioned mine hard alloy tooth, wherein, the employing of the material of described crown contains the cobalt amount and is lower than 1 11 carbide alloy.
Further, above-mentioned mine hard alloy tooth, wherein, being shaped as of described denticle is cylindrical.
Again further, above-mentioned mine hard alloy tooth, wherein, first section profile of described crown sidepiece is arc transition with the 3rd section profile and is connected with second section profile, second section profile.
Substantive distinguishing features and obvious improvement that technical solution of the present invention is outstanding are mainly reflected in:
Modern design of the present invention, this multilayer mine carbide button can improve carbide alloy height grinningly, can control the contact area of hard-metal insert and broken rock again easily.Not only can avoid in the use of individual layer tooth, the wear interface of tooth is increasing, and the frictional force of the contact interface of carbide button and broken rock is too big, and drilling tool has to stop using; Can also avoid simultaneously double-deck tooth because beginning is just too little with broken rock contact interface area, in the drilling tool use, the carbide button quick abrasion causes the not high defective in application life of drilling tool.Be the new design of a practicality, have a extensive future.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the structural representation of crown of the present invention;
Fig. 2: sidepiece is the rectilinear structure schematic diagram;
Fig. 3: sidepiece is an evagination arc-shaped structure schematic diagram;
Fig. 4: first section of sidepiece is that straight line, second section are concave shaped camber line structural representation;
Fig. 5: first section of sidepiece is that evagination camber line, second section are imploded arcs line structure schematic diagram.
The implication of each Reference numeral sees the following form among the figure:
| Reference numeral | Implication | Reference numeral | Implication | Reference numeral | Implication |
| 1 | The camber line of first section profile evagination | 2 | First section profile straight line | 3 | The camber line of first section profile indent |
| 4 | The camber line of second section profile evagination | 5 | Second section profile straight line | 6 | The camber line of second section profile indent |
| 7 | The camber line of the 3rd section profile evagination | 8 | The 3rd section profile straight line | 9 | The camber line of the 3rd section profile indent |
The specific embodiment
The mining tooth of carbide alloy that the crown of sandwich construction of the present invention is formed not only can be avoided the individual layer tooth in use, and the wear interface of tooth is increasing, and the frictional force of the contact interface of carbide button and broken rock is too big, and drilling tool has to stop using.Can also avoid simultaneously double-deck tooth because beginning is just too little with broken rock contact interface area, in the drilling tool use, the carbide button quick abrasion causes the not high defective in application life of drilling tool.
Mine hard alloy tooth mainly comprises denticle and crown, and denticle is shaped as cylindrical, in the denticle upper end crown is set, and as shown in Figure 1, crown comprises top and sidepiece, and the profile at crown top is the camber line of evagination; The profile of crown sidepiece constitutes by three sections, be respectively first section A, second section B and the 3rd section C, first section profile is the camber line 1 of evagination or the camber line 3 of straight line 2 or indent, second section profile is the camber line 4 of evagination or the camber line 6 of straight line 5 or indent, the 3rd section profile is the camber line 7 of evagination or 9, the first sections profiles of camber line of straight line 8 or indent are arc transition with the 3rd section profile and are connected with second section profile, second section profile.The material employing of crown contains the cobalt amount and is lower than 1 11 carbide alloy.
The crown composition of mine hard alloy tooth has three sections, and every section contour shape can be respectively the camber line of straight line or indent or the camber line of evagination, constitutes 27 kinds of form of structure altogether.The mining tooth of carbide alloy that the crown of sandwich construction is formed can reasonably be selected the compound mode of crown according to the working interface of reality, makes drilling tool in use bring into play maximum effect.
During application, in conjunction with concrete stratum and in creeping into the wear out failure form of carbide button and the rate of penetration of corresponding drilling tool, select corresponding three-layer alloy tooth, when stratum hardness is hard partially, can select the carbide button or the linear pattern carbide button of evagination, as Fig. 2, shown in Figure 3, can increase the intensity of carbide button.When the drilling tool speed of correspondence is on the low side, can select indent or straight line carbide button, as Fig. 4, shown in Figure 5, can reduce the contact area that carbide button contacts with broken rock, reduce friction, improve the speed of drilling tool.
In sum, the present invention designs uniqueness, novel structure, and the multilayer mine carbide button of this structure can improve carbide alloy height grinningly, can control the contact area of hard-metal insert and broken rock again easily.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the rights protection scope of the present invention.
Claims (3)
1. mine hard alloy tooth comprises denticle and crown, and crown is arranged on the denticle, it is characterized in that: described crown comprises top and sidepiece, and the profile at crown top is the camber line of evagination; The profile of crown sidepiece constitutes by three sections, first section profile linearly or the camber line of the camber line of indent or evagination, second section profile linearly or the camber line of the camber line of indent or evagination, the 3rd section profile linearly or the camber line of the camber line of indent or evagination, first section profile, second section profile, the 3rd section mutual transition and linkage of profile.
2. mine hard alloy tooth according to claim 1 is characterized in that: being shaped as of described denticle is cylindrical.
3. mine hard alloy tooth according to claim 1 is characterized in that: first section profile of described crown sidepiece is arc transition with the 3rd section profile and is connected with second section profile, second section profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100270141A CN101571032A (en) | 2009-05-22 | 2009-05-22 | Mine hard alloy tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100270141A CN101571032A (en) | 2009-05-22 | 2009-05-22 | Mine hard alloy tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571032A true CN101571032A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100270141A Pending CN101571032A (en) | 2009-05-22 | 2009-05-22 | Mine hard alloy tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571032A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
| CN112780207A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Cutting board assembly of oil and gas well casing cutting and forging milling system |
| CN112780206A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Casing cutting, forging and milling tool for old well and abandoned well operation |
| CN114733594A (en) * | 2022-03-18 | 2022-07-12 | 安徽丰进机械有限公司 | Hydraulic breaking hammer and drill rod |
-
2009
- 2009-05-22 CN CNA2009100270141A patent/CN101571032A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
| CN112780207A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Cutting board assembly of oil and gas well casing cutting and forging milling system |
| CN112780206A (en) * | 2021-01-04 | 2021-05-11 | 中国石油天然气集团有限公司 | Casing cutting, forging and milling tool for old well and abandoned well operation |
| CN114733594A (en) * | 2022-03-18 | 2022-07-12 | 安徽丰进机械有限公司 | Hydraulic breaking hammer and drill rod |
| CN114733594B (en) * | 2022-03-18 | 2024-04-12 | 安徽丰进机械有限公司 | Hydraulic breaking hammer and drill rod |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091104 |