CN204703773U - A kind of bicuspid composite polycrystal-diamond - Google Patents
A kind of bicuspid composite polycrystal-diamond Download PDFInfo
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- CN204703773U CN204703773U CN201520407099.7U CN201520407099U CN204703773U CN 204703773 U CN204703773 U CN 204703773U CN 201520407099 U CN201520407099 U CN 201520407099U CN 204703773 U CN204703773 U CN 204703773U
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- bicuspid
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- composite sheet
- diamond
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Abstract
The utility model discloses a kind of bicuspid composite polycrystal-diamond, the alloy substrate that it comprises polycrystalline diamond composite bed and is attached thereto, composite sheet comprises brazed end and cutting end, it is characterized in that: brazed end and cutting end are pointed.Beneficial effect acquired by the utility model is: 1, in soldering processing, the pointed end face of composite sheet brazed portion uniquely coordinates with pointed tooth cave, ensures the accurate location in composite sheet and tooth cave, guarantees machining accuracy; 2, brazed end and cutting end are symmetrical set, and in the drill bit repair process using such composite sheet, for the composite sheet that wearing and tearing are not serious, can exchange up and down and repair, save drill bit rehabilitation cost greatly; 3, cutting end and formation rock contact area narrower, drill bit effectively improves efficiency of breaking rock when special formation creeps into.
Description
Technical field
The utility model relates to a kind of bicuspid composite polycrystal-diamond in the drilling well rock bit such as geology, drilling well, mine.
Background technology
Composite polycrystal-diamond is the cutting element of drilling tool field particularly PDC product, and traditional cutting element is generally circle, or expands on circular contour basis.For the pointed composite sheet of carrying out expanding on circular contour, at some special formation, such composite sheet can improve efficiency of breaking rock really, but because the brazed portion of such composite sheet when soldering and tooth cave are all circular contour, in soldering processing, composite sheet is easily rotated with the rotation in the center of circle, and therefore adding the soldering of the type composite sheet wastes time and energy and can not ensure machining accuracy man-hour.And, for the pointed composite sheet of carrying out expanding on circular wheel profile in drill bit application, composite sheet, once wearing and tearing, just loses its using value substantially, so to using the drill bit of such composite sheet can only change tooth reparation, cause the lifting greatly of drill bit rehabilitation cost.
Utility model content
Technical problem to be solved in the utility model is that the deficiency existed for above-mentioned prior art provides a kind of bicuspid composite polycrystal-diamond that can ensure machining accuracy, improve stock-removing efficiency.
The technical scheme that the utility model adopts is: a kind of bicuspid composite polycrystal-diamond, the alloy substrate that it comprises polycrystalline diamond composite bed and is attached thereto, composite sheet comprises brazed end and cutting end, it is characterized in that: brazed end and cutting end are pointed.
By technique scheme, brazed end and cutting end are symmetrically structures centered by the cross section of composite sheet.
By technique scheme, the outline line of described brazed end and the outline line of cutting end include two and are mutually the isometric line segment of angle and the smooth curve being connected two isometric line segments.
By technique scheme, described smooth curve section is arc section, and the line segment that the two ends of this arc section are coupled is respectively tangent.
By technique scheme, the radius of described arc section is 1-5mm.
By technique scheme, the two ends of brazed end outline line are connected with cutting end outline line respectively by transition line.
By technique scheme, two transition lines are identical elliptic arc line segment.
Beneficial effect acquired by the utility model is: 1, in soldering processing, the pointed end face of composite sheet brazed portion uniquely coordinates with pointed tooth cave, ensures the accurate location in composite sheet and tooth cave, guarantees machining accuracy; 2, brazed end and cutting end are symmetrical set, and in the drill bit repair process using such composite sheet, for the composite sheet that wearing and tearing are not serious, can exchange up and down and repair, save drill bit rehabilitation cost greatly; 3, cutting end and formation rock contact area narrower, drill bit effectively improves efficiency of breaking rock when special formation creeps into.
Accompanying drawing explanation
Fig. 1 is bicuspid composite polycrystal-diamond schematic diagram.
Fig. 2 is bicuspid PCD compacts brazing schematic diagram.
Fig. 3 is bicuspid composite polycrystal-diamond wearing and tearing schematic diagrames.
Fig. 4 is that bicuspid polycrystalline diamond compact bit repairs schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, present embodiments provide a kind of bicuspid composite polycrystal-diamond, the alloy substrate 2 that it comprises polycrystalline diamond composite bed 1 and is attached thereto, composite sheet comprises brazed end 6 and cutting end 7, and brazed end 6 and cutting end 7 are symmetrically structures centered by the cross section of composite sheet.
Wherein, described cutting end 6 outline line comprises two and is mutually isometric line segment A, B of angle and the arc section tangent with this two isometric line segments; Brazed end 7 outline line comprises two and is mutually isometric line segment C, D of angle and the arc section tangent with this two isometric line segments, the radius R of these two arc sections
1, R
2be 2mm.
The two ends of brazed end outline line are connected with cutting end outline line respectively by transition line E, F.Two transition line E, F are identical elliptic arc line segment.
In soldering processing, as shown in Figure 2, the tooth cave in wing 3 is the pointed tooth cave 4 identical with brazed end shape, and PCD compacts brazing end can intact be put in tooth cave can not left-right rotation, ensures the accuracy in processing.
For the drill bit using such composite sheet, in drill bit uses, can wear and tear in cutting end, as shown in Figure 3, when drill bit is repaired, as shown in Figure 4, original cutting end 6 and the soldering again again of brazed end 7 transposition, just can complete the reparation of such drill bit, greatly reduce the rehabilitation cost of such drill bit.
Claims (7)
1. a bicuspid composite polycrystal-diamond, the alloy substrate that it comprises polycrystalline diamond composite bed and is attached thereto, composite sheet comprises brazed end and cutting end, it is characterized in that: brazed end and cutting end are pointed.
2. bicuspid composite polycrystal-diamond according to claim 1, is characterized in that, brazed end and cutting end are symmetrically structures centered by the cross section of composite sheet.
3. bicuspid composite polycrystal-diamond according to claim 2, is characterized in that, the outline line of described brazed end and the outline line of cutting end include two and be mutually the isometric line segment of angle and the smooth curve being connected two isometric line segments.
4. bicuspid composite polycrystal-diamond according to claim 3, is characterized in that, described smooth curve section is arc section, and the line segment that the two ends of this arc section are coupled is respectively tangent.
5. bicuspid composite polycrystal-diamond according to claim 4, is characterized in that, the radius of described arc section is 1-5mm.
6. the bicuspid composite polycrystal-diamond according to Claims 2 or 3, is characterized in that, the two ends of brazed end outline line are connected with cutting end outline line respectively by transition line.
7. bicuspid composite polycrystal-diamond according to claim 6, is characterized in that, two transition lines are identical elliptic arc line segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407099.7U CN204703773U (en) | 2015-06-12 | 2015-06-12 | A kind of bicuspid composite polycrystal-diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407099.7U CN204703773U (en) | 2015-06-12 | 2015-06-12 | A kind of bicuspid composite polycrystal-diamond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703773U true CN204703773U (en) | 2015-10-14 |
Family
ID=54283398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407099.7U Active CN204703773U (en) | 2015-06-12 | 2015-06-12 | A kind of bicuspid composite polycrystal-diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643857A (en) * | 2016-12-16 | 2017-05-10 | 智德电机（苏州）有限公司 | Novel motor enclosure detection device |
| CN106767997A (en) * | 2016-12-16 | 2017-05-31 | 智德电机（苏州）有限公司 | A kind of motor case detection means |
-
2015
- 2015-06-12 CN CN201520407099.7U patent/CN204703773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643857A (en) * | 2016-12-16 | 2017-05-10 | 智德电机（苏州）有限公司 | Novel motor enclosure detection device |
| CN106767997A (en) * | 2016-12-16 | 2017-05-31 | 智德电机（苏州）有限公司 | A kind of motor case detection means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180322 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION |