CN2242330Y - Diamond composition mat dill bit for mining use - Google Patents
Diamond composition mat dill bit for mining use Download PDFInfo
- Publication number
- CN2242330Y CN2242330Y CN 95235137 CN95235137U CN2242330Y CN 2242330 Y CN2242330 Y CN 2242330Y CN 95235137 CN95235137 CN 95235137 CN 95235137 U CN95235137 U CN 95235137U CN 2242330 Y CN2242330 Y CN 2242330Y
- Authority
- CN
- China
- Prior art keywords
- composite blade
- diamond composite
- diamond
- drill bit
- plane
- 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
The utility model discloses a diamond composition mat dill bit for mining use, which is composed of a dill bit body with two triangular pyramid heads which are mutually and alternatively arranged into a ' Y '-shaped, a connecting rod for the drill bit and a diamond composition mat. The utility model has the advantages of small size, light weight, simple manufacture technology, few material consumption, low cost, good wear resistant and shock resistant performance, long service life, high work efficiency, etc., and is widely used for industries such as coal mining, rock drilling, mining, etc.
Description
The utility model relates to mining perforating drill bits such as rock drilling, coal mining, the mining perforating drill bit of specifically a kind of diamond compact.
At present, mining perforating drill bit uses carbide drill more, diamond bit and diamond composite drill bit have also begun to use, structure and shape to drill bit have also been done some improvement, but still there are some problems, as the patent No. is 93246877.2 disclosed diamond blast hole bits, main improvement is to change the knife edge part that existing drill bit working position is " one " font into a groove, inlay the alloy abrading block that contains diamond abrasive grain in the groove, its structure still is " one " font, and during the work of this kind drill bit, the limit chiseling is rotated, rotary drilling continuously, drilling depth is slower.Name is called the drill bit of indication in the patent of " cold-heading make middle part vacuum drill bit and manufacture method thereof " for another example, its bit body is the cylinder hollow type, the groove of top working surface contains the blade that diamond is made, this drill bit can creep into continuously, but complex structure, manufacture difficulty is bigger, and consumptive material is many, the cost height, and only be applicable to rock drilling.The patent No. is 89106159 " drill bit of diamond composite and made " for another example, and its main feature is the diamond cylinder of convex lens shape for the drill bit working position, and this drill bit rate of penetration is also slower, and is not suitable for boring soft ore deposit.The electric coal drill of colliery use now is generally " Y " shape spiral bit, can rotate continuously and creep into, and manufacture craft is simple, cost is lower, but the opening part of " Y " type is bigger at interval, when running into lithosphere, leaves rock core easily, in the time of at the bottom of rock core withstands " Y " type mouth, then be difficult to drilling depth, influence progress, in addition, the drill bit working position is the blade that carbide alloy makes, and its anti-wear performance and shock resistance are all relatively poor.
The purpose of this utility model provides that a kind of volume is little, in light weight, the material saving, make easily, cost is lower, wear-resisting, shock resistance is good, long service life, can rotate the coal seam of can boring of creeping into continuously again can rock drilling or the diamond compact bit of metallic ore.
The utility model is achieved in that present " y " type twisted shape coal mining drill bit is improved, make the intersection constriction of " y " type, to prevent the formation of rock core, and on the solder side of drill bit carbide chip, change the diamond composite blade made from the HTHP sintering process in the welding into, to increase anti-wear performance, and make diamond composite blade and solder side thereof face upward an appropriate angle outward, to increase wear-resisting area and to improve shock resistance.
The utility model has the advantages that volume is little, in light weight, manufacture craft is simple, consumptive material is less, cost is lower, intensity is higher, anti-wear performance and shock resistance be all stronger, long service life both had been applicable to coal mining, also was applicable to rock or metallic ore perforating.
Accompanying drawing 1: be the utility model structural representation
Accompanying drawing 2: for the utility model along the B-B cut-away view
Accompanying drawing 3: for the utility model cuts open figure along A-A office
In the accompanying drawing: the 1-bit body, 2-diamond composite blade solder side, 3-diamond composite blade, 4-weep hole, 5-drill bit connecting rod, inclined-plane in the 6-triangular pyramid, the outer angle of elevation alpha of 7-diamond composite blade, the outer inclined-plane of 8-triangular pyramid, 9-triangular conical head, rib in the 10-triangular conical head, the outer rib of 11-triangular conical head.
Below in conjunction with accompanying drawing the utility model is described in detail:
The utility model is by bit body 1, drill bit connecting rod 5, and diamond composite blade 3 constitutes.The bottom of bit body 1 is a twisted shape, and top is two triangular conical heads 9, is staggered to " Y " shape relatively, the interior rib 10 of two triangular conical heads 9 is a symmetry with the central axis of bit body 1, three faces of triangular conical head 9 are outer inclined-plane 8, interior inclined-plane 6, diamond compact solder side 2.Rotary converging done to the center in the bottom on interior inclined-plane 6, to help the outflow of dust mineral.Outer inclined-plane 8 stretches out downwards from the vertex of a cone, and forms a crooked shoulder with the vertical plane of bit body 1.The bottom of diamond compact solder side 2 is step-like, and top is carinate, and faces upward a α angle outside the direction of rib 11 outside the triangular conical head, and be advisable with the 5-10 degree in the α angle, above diamond composite blade 3 is welded on.Two interior inclined-planes 6 are in a plane, two diamond composite blade solder side angles are 2 times the outer α angle 7 of facing upward, distance from bottom equals or is slightly larger than the thickness of 2 diamond composite blades 3, and interior inclined-plane 6 is the 50-70 degree with the angle of diamond composite blade solder side 2.
Claims (4)
1, a kind of diamond compact is mining perforating drill bit, by the bit body 1 that is staggered to the triangular conical head 9 of " Y " type relatively with two, drill bit connecting rod 5, the diamond composite blade 3 that the HTHP sintering forms constitutes, it is characterized in that diamond composite blade 3 is welded on the diamond composite blade solder side 2 of triangular conical head 9, and outside the direction of diamond composite blade solder side 2 rib 11 outside the triangular conical head, face upward α angle 7, inclined-plane 6 is in a plane in two triangular pyramids, the angle of two diamond composite blade solders side 2 is 2 times that the diamond composite blade is faced upward α angle 7 outward, the base spacing is more than or equal to 2 times of diamond composite blade thickness, and inclined-plane 6 is the 50-70 degree with the angle of diamond composite blade solder side 2 in the triangular pyramid.
2, the mining perforating drill bit of diamond compact according to claim 1 is characterized in that the outer α of the facing upward angle 7 of diamond composite blade 3 is the 5-10 degree.
3, the mining perforating drill bit of diamond compact according to claim 1 is characterized in that rotary converging done to the center in the bottom on inclined-plane 6 in the triangular pyramid, and outer inclined-plane 8 stretches out downwards from the vertex of a cone, and forms a crooked shoulder with the vertical plane of bit body 1.
4, the mining perforating drill bit of diamond compact according to claim 1, it is characterized in that diamond composite blade 3 and diamond composite blade solder side 2 are ridged, big outer little two ridgeds in also can making, the area of diamond composite blade 3 is slightly larger than the area of its solder side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95235137 CN2242330Y (en) | 1995-11-23 | 1995-11-23 | Diamond composition mat dill bit for mining use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95235137 CN2242330Y (en) | 1995-11-23 | 1995-11-23 | Diamond composition mat dill bit for mining use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242330Y true CN2242330Y (en) | 1996-12-11 |
Family
ID=33878891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95235137 Expired - Fee Related CN2242330Y (en) | 1995-11-23 | 1995-11-23 | Diamond composition mat dill bit for mining use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242330Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781496A (en) * | 2012-11-02 | 2015-07-15 | 史密斯国际有限公司 | PDC bits having rolling cutters and using mixed chamfers |
| CN110939381A (en) * | 2019-10-25 | 2020-03-31 | 中铁隧道局集团有限公司 | Drilling and core-taking integrated drilling machine for tunnel construction |
-
1995
- 1995-11-23 CN CN 95235137 patent/CN2242330Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781496A (en) * | 2012-11-02 | 2015-07-15 | 史密斯国际有限公司 | PDC bits having rolling cutters and using mixed chamfers |
| CN110939381A (en) * | 2019-10-25 | 2020-03-31 | 中铁隧道局集团有限公司 | Drilling and core-taking integrated drilling machine for tunnel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |