CN2248242Y - Composite fin and tooth integrated rock-drill - Google Patents
Composite fin and tooth integrated rock-drill Download PDFInfo
- Publication number
- CN2248242Y CN2248242Y CN 96203053 CN96203053U CN2248242Y CN 2248242 Y CN2248242 Y CN 2248242Y CN 96203053 CN96203053 CN 96203053 CN 96203053 U CN96203053 U CN 96203053U CN 2248242 Y CN2248242 Y CN 2248242Y
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- tooth
- cutting edge
- sheet shape
- sheet
- ball
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Abstract
The utility model relates to a composite fin and tooth integrated rock-drill, which is used as a percussion drilling tool. A rod body 1 and a head cone 2 are forged as integration, an end surface inner ring of the head cone 2 is vertically distributed with sphere tooth-shaped cutting edges 3, and an outer ring is radically, uniformly and vertically distributed with sheet-shaped cutting edges 4. Therefore, the utility model can effectively overcome the insufficiencies existing in the prior art, and the utility model has the advantages of rapid drilling speed, long service life, low cost, stable quality and no maintenance. The utility model is suitable for all rock drilling projects with perforating diameter of phi 25-64 mm, and the utility model can not be limited by model, lithology and hole direction.
Description
The utility model belongs to drilling tool.
In the prior art, the monoblock drill steel that is used for rock drilling generally can be divided into ball profile of tooth cutting edge monoblock drill steel and sheet shape cutting edge monoblock drill steel two classes by cutting edge form branch.The whole pricker of sheet shape series has in-line, three-blade shape and 3 series of cross.The whole pricker of ball profile of tooth series has the series of products of different-diameter such as three～nine ball teeth and different cloth tooth modes, as Chinese patent 851022693.The whole pricker of sheet shape series adopts the solid sheet of soldering processes, and its advantage is that chisel edge is welded into integral body by weld seam and hammer drill forecone, Gu sheet is firm; Chisel edge bears the frontal impact compressive stress, and the anti-impact force ability is strong; The carbide alloy side contacts with the ore deposit rock, and anti-gauge wear ability is strong; Knife edge is sharp-pointed, the efficiency of breaking rock height; Behind the knife edge blunt, reconditioning is convenient.Therefore should series put in order the pure drilling speed height of pricker, the complete wear time life-span is long, and steady quality is not limited by lithology.But there are some shortcomings in it: because the sheet sword is longer, can only make radial cloth sheet, cause the core chisel edge intensive, the marginal portion chisel edge is rarer, broken rock load of chisel edge and wearing and tearing are uneven, cause grinding time drilling depth and industrial drilling speed and descend, and the hammer drill handling workload is big when refacing, add that homemade drill steel quality is stable inadequately, does not slowly use in the native land in a large number.The whole pricker great advantage of ball profile of tooth series is that wearing and tearing are even, does not need reconditioning, and industrial drilling speed is higher, helps improving rock penetration performance and alleviates workman's manual labor.But should also come with some shortcomings by the whole pricker of series, too fast as undergauge, balsh body contact ore deposit rock beyond the hammer drill head is a little less than the anti-gauge wear ability; After the abrasion of outer balsh body, ball tooth broken the taking off of turning up often taken place; At uniaxial compressive strength σ
DIn the tough and tensile rock of 〉=250MPa, the heel teeth passivation is very fast, causes drilling speed to descend, and broken tooth rate increases.Therefore its quality, kind are restricted.
The utility model provides composite sheet tooth monoblock drill steel at the problem that prior art exists, and has overcome the shortcoming that exists in the prior art, and drilling speed is fast, and the life-span is long, and cost is low, and steady quality does not need reconditioning.
The utility model is made up of the hammer drill body of rod 1 and forecone 2, the body of rod 1 forges whole with cone 2 and adopts cambered surface and the mild transition of the conical surface, 0～4 water hole 5 can be arranged in cone 2 head end or cone 2 sides, it is characterized in that forecone 2 comprises ball tooth cutting edge 3 and sheet shape cutting edge 4, ball profile of tooth cutting edge 3 discrete vertical are arranged in the interior ring of cone 2 end faces, and 4 of sheet shape cutting edges are the radial outer shroud that evenly is arranged vertically at cone 2 end faces.The body of rod 1 adopts the hollow steel with band shoulder hexagonal lugs or screw thread lugs, as B19, and B22, B25, B28, B32, B35, B38mm etc.Forecone 2 adopts the machine-shaping of alloy steel steel forging machine, and can there be plane or invaginating ditch (powder exhaust groove 7) in the side, and water hole 5 can also be set in ditch, cone 2 high 20～45mm, diameter phi 25～φ 64mm, 2 °～4 ° of cone 2 head clearance angles, hammer drill length is generally 400～6400mm.The body of rod 1 is connected with cone 2 can also be poor according to whole pricker cone 2 and the body of rod 1 footpath, adopts awl-arc (outer, interior)-post, awl-arc-awl-arc-post, and awl-arc-post-arc-multiple interim forms such as post guarantees that forecone 2 is connected gently with the body of rod 1.Ball tooth cutting edge 3 diameter phi 6,7,8,9,10,11,12mm has 1,2,3,4 and even more a plurality of, multiple tooth time-division ring layer symmetric arrangement, crown is bullet-shaped or hemispherical, highly generally be about grinningly tooth footpath 1/2 or quite, but tooth top should be higher than sheet shape cutting edge knife edge plane, generally exceeds 2～6mm.Sheet shape cutting edge 4 has the two-edged aerofoil, and sword face angle (basil) is 110 ° ± 5 °, and length of a film is 1/3～1/5 of cone 2 diameters, its round end sheet end radius be about sheet thick 1/2, the sheet number is 2,3,4,5,6 not to be waited.Water hole 5 is arranged on cone 2 end faces, can be 1～3, also can not establish; Water hole 5 is arranged in the cone 2 side powder exhaust grooves, is provided with 1～4 when needing, and also can not establish; One of them minimumly must have 1 water hole 5 end face or side; Water hole 5 diameters are φ 4, φ 5, φ 6, φ 7, φ 8mm as required.Ball profile of tooth cutting edge 3 and sheet shape cutting edge 4 have multiple combination, 1 ball tooth cutting edge 3 and 2 or 4,2 ball tooth cutting edges 3 of 3 sheet shape cutting edges and 2 or 3 or 4 sheet shape 4,3 ball profile of tooth cutting edges 3 of cutting and 3 or 4 sheet shape cutting edges 4 can be arranged, 4,5 of 4 ball profile of tooth cutting edges 3 and 4 sheet shape cutting edges or a plurality of ball tooth cutting edge 3 and 4 or 5 or 6 sheet shape cutting edges 4, or the like.Multiple tooth multi-disc combination generally is used for the bigger whole pricker of cone 2 diameters, and as 2 ball profile of tooth cutting edges 3 and 4 sheet shape cutting edges 4, being mainly used in cone 2 diameters is φ 38, and φ 39, and φ 40,141, and φ 42, and φ 45, the whole pricker of φ 48mm; The combination of 3 ball profile of tooth cutting edges 3 and 4 sheet shape cutting edges 4, being mainly used in cone 2 diameters is φ 42, and φ 43, and φ 45, and φ 48, the whole pricker of φ 51mm; 3 and 4 sheet shape cutting edges of 4 ball profile of tooth cuttings are used for diameter more 4 be φ 45, and φ 48, and φ 51, and φ 57, the whole pricker of φ 64mm.Or the like.
The material of the utility model ball tooth cutting edge 3 and sheet shape cutting edge 4 can be selected carbide alloy for use, can also select for use the material that contains the diamond composition to make.Cutting 3 of ball profile of tooth and the sheet shape cutting edge 4 general solid sheet of induction brazing method, the permanent tooths of adopting, perhaps ball profile of tooth cutting edge 3 adopts interference tooth fixing method permanent tooth, and sheet shape cutting edge 4 adopts the solid sheet of the solid sheet method of induction brazing.When ball profile of tooth cutting edge 3 and sheet shape cutting edge 4 adopts the material that contains the diamond composition to make, can also select the solid sheet of galvanoplastic, permanent tooth for use.
The utility model is on cone 2 end faces, the vertical dispersed placement ball profile of tooth cutting edge 3 of interior ring, outer shroud are radial vertical evenly layout sheet shape cutting edge 4, thereby have kept the advantage that sheet shape is put in order pricker and the whole pricker of ball profile of tooth in the prior art effectively, overcome their deficiency separately again, thereby sheet, tooth distribute rationally, the efficiency of breaking rock height, and knife edge is sharp-pointed, wearing and tearing evenly, passivation is slow, and pure drilling speed and industrial drilling speed are bigger than existing whole pricker, improve 20～30% approximately; Sheet, tooth all bear the frontal impact compressive stress, and the outer face of sheet shape cutting edge 4 directly contacts with the ore deposit rock, therefore shock resistance and anti-gauge wear can greatly strengthen by the existing pricker of putting in order of force rate, and its average life span ratio is with the whole pricker of diameter ball dentition row and 3～5 times the serial pricker high approximately 30～40% of putting in order of sheet shape of refacing; Adopt the utility model cloth tooth cloth chip architecture, sheet tooth stress is improved, and quality stability also improves greatly; Simultaneously, outer ring plate shape cutting edge 4 has from sharp ability, thus in the utility model use without reconditioning.Because sheet, tooth is stressed and state of wear improves, the whole pricker of composite sheet tooth is put in order the carbide alloy consumption minimizing of pricker than existing sheet shape or ball profile of tooth, thereby manufacturing cost is lower.In addition, the utility model has enlarged the range of application that whole pricker can be selected diameter, for penetration hole diameter φ 25～φ 64mm medium-small diameter drilling engineering, not limited by type, lithology and perforation direction.
Whole pricker and hammer drill link lugs, the difference of pressing hammer drill body of rod diameter has band shoulder hexagonal lugs and screw thread lugs two classes.Band shoulder hexagonal lugs geometrical structure parameter meets the regulation of international standard ISO723-1991, ISO1718-1991 and standard GB/T6481-94.R25, R28, R32, R38 external screw thread lugs connect parameter, meet the regulation of international standard ISO10207-1991, ISO10208-1991 and standard GB/T6482-94.T38, T45 external screw thread lugs connect parameter, meet the regulation of relevant international advanced standard.
Fig. 1 is the whole pricker elevation of the composite sheet tooth of 1 ball profile of tooth cutting edge 3 and 3 sheet shape cutting edges 4
Fig. 2 is the whole pricker elevation of the composite sheet tooth of 1 ball profile of tooth cutting edge 3 and 2 sheet shape cutting edges 4
Fig. 3 is the whole pricker elevation of the composite sheet tooth of 2 ball profile of tooth cutting edges 3 and 2 sheet shape cutting edges 4
Fig. 4 and Fig. 5 are the whole pricker elevation of the composite sheet tooth of 1 ball profile of tooth cutting edge 3 and 3 sheet shape cutting edges 4
Fig. 6 is the whole pricker elevation of the composite sheet tooth of 2 ball profile of tooth cutting edges 3 and 4 sheet shape cutting edges 4
Fig. 7 is the whole pricker elevation of the composite sheet tooth of 3 ball tooth cutting edges 3 and 4 sheet shape cutting edges 4
Fig. 8 is the utility model side schematic view
1. the hammer drill body of rod, 2. forecone, 3. ball tooth cutting edge, 4. a shape cutting edge, 5. water hole, 6. the sword wing, 7. powder exhaust groove.
With the whole pricker of a kind of composite sheet tooth of φ 40mm3 sheet 1 tooth is example, and ball profile of tooth cutting edge 3 is 1, is arranged vertically ring or center in cone 2.End face water hole 5 is 1, is arranged in ring in cone 2 heads; Water hole, side 5 is arranged in the ditch, cone side, can be 1 or 2 or 3 or do not establish, and sheet shape cutting edge 4 has 3, is radial symmetry and is arranged vertically outer shroud in cone 2 head end; Ball profile of tooth cutting edge 3 is the bullet tooth, and tooth directly is φ 8, φ 9, φ 10mm, highly is about 1/2 of tooth footpath grinningly, but needs to guarantee tooth addendum slice shape cutting edge knife edge plane 2～4mm; Sheet shape cut 4 specifications by length * thick * height be 13, (14), (15) * 8, (9), (10) * 12, (13), (14) mm, 110 ° of the basils; 2 °～4 ° of cone 2 head clearance angles.Cutting 3 of ball profile of tooth and sheet shape cutting edge 4 are all selected carbide alloy for use, adopt low frequency induction soldering permanent tooth, solid sheet.Cone 2 is selected Si-Mn-Mo or Cr-Ni-Mo series high duty alloy steel for use, forms through Frequency Induction Heating forging and machine, and case hardness is HRc38～45.The body of rod 1 adopts cambered surface with cone 2, and mild transition is connected with the conical surface.
The utility model can be made multiple diameter and the whole pricker of sheet dentition row, is widely used in various drilling engineerings.
Claims (6)
1. composite sheet tooth monoblock drill steel, form by the hammer drill body of rod 1, forecone 2, the body of rod 1 forges whole with cone 2 and adopts cambered surface and the mild transition of the conical surface, water hole 5 can be arranged in forecone 2 end faces or side, it is characterized in that forecone 2 also comprises ball tooth cutting edge 3 and sheet shape cutting edge 4, ball profile of tooth cutting edge 3 vertical dispersed placement are at the interior ring of cone 2 head end, and sheet shape cutting edge 4 is vertical and be the radial outer shroud that is evenly arranged in cone 2 head end.
2. composite sheet tooth monoblock drill steel as claimed in claim 1 is characterized in that: ball tooth cutting edge 3 has 1, and sheet shape cutting edge 4 can have 2,3 or 4.
3. composite sheet tooth monoblock drill steel as claimed in claim 1 is characterized in that: ball profile of tooth cutting 3 has 2, and sheet shape cutting 4 has 2 or 3 or 4.
4. composite sheet tooth monoblock drill steel as claimed in claim 1 is characterized in that: ball profile of tooth cutting edge 3 has 3, and sheet shape cutting edge 4 can have 3 or 4.
5. composite sheet tooth monoblock drill steel as claimed in claim 1 is characterized in that: ball profile of tooth cutting edge 3 has 4 or 5, and sheet shape cutting edge 4 can have 3 or 4 or 5 or 6.
6. as claim 1 or 2 or 3 or 4 or 5 described composite sheet tooth monoblock drill steels, it is characterized in that: the material of ball profile of tooth cutting edge 3 and sheet shape cutting edge 4 is selected carbide alloy for use, or contains the material of diamond composition; Monoblock drill steel cone 2 head diameters are pressed code requirement as required and are selected, and are generally φ 25～φ 64mm; Sheet shape cutting edge sword aerofoil angle is 110 ° ± 5 °, and length of a film generally is about 1/3～1/5 of forecone 2 diameters; The ball tooth cutting edge 3 crown tops high slice shape cutting edge knife edge about 2～4mm in plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203053 CN2248242Y (en) | 1996-01-24 | 1996-01-24 | Composite fin and tooth integrated rock-drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203053 CN2248242Y (en) | 1996-01-24 | 1996-01-24 | Composite fin and tooth integrated rock-drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248242Y true CN2248242Y (en) | 1997-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203053 Expired - Fee Related CN2248242Y (en) | 1996-01-24 | 1996-01-24 | Composite fin and tooth integrated rock-drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248242Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289793A (en) * | 2015-11-17 | 2016-02-03 | 吉林大学 | Bionic breaking hammer drill rod |
| CN111363895A (en) * | 2020-04-27 | 2020-07-03 | 埃肯铸造(中国)有限公司 | Heating process for maintaining air-blowing pick tip |
-
1996
- 1996-01-24 CN CN 96203053 patent/CN2248242Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289793A (en) * | 2015-11-17 | 2016-02-03 | 吉林大学 | Bionic breaking hammer drill rod |
| CN105289793B (en) * | 2015-11-17 | 2017-09-26 | 吉林大学 | A kind of bionical crushing hammar drill rod |
| CN111363895A (en) * | 2020-04-27 | 2020-07-03 | 埃肯铸造(中国)有限公司 | Heating process for maintaining air-blowing pick tip |
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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 |