CN209483223U - The anti-sticking pricker blast hole bit of air rock drill - Google Patents
The anti-sticking pricker blast hole bit of air rock drill Download PDFInfo
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- CN209483223U CN209483223U CN201920192772.8U CN201920192772U CN209483223U CN 209483223 U CN209483223 U CN 209483223U CN 201920192772 U CN201920192772 U CN 201920192772U CN 209483223 U CN209483223 U CN 209483223U
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Abstract
The utility model discloses a kind of anti-sticking pricker blast hole bits of air rock drill, and raised including ontology and the hard alloy that portion on the body is arranged, ontology includes first frustum of a cone and second frustum of a cone, wherein the base diameter of first frustum of a cone is less than top diameter；The groove of several arc-shapeds is also provided on the ontology, the first apopore is offered respectively on each groove, be also provided on the male cone (strobilus masculinus) of first frustum of a cone with the one-to-one helicla flute of the groove, the upper end of each helicla flute is connected with corresponding groove.The utility model can improve rock drilling perforating efficiency to avoid the generation of card pricker accident, save production cost.
Description
Technical field
The utility model relates to blast hole bits used in a kind of air rock drill.
Background technique
Drilling and blasting method is the primary hand of all kinds of engineering constructions such as current metal and nonmetallic underground mine roadway, chamber, mining
Section and the main implementation of Shandong Jiaojia all kinds of well lanes engineering at present and mining engineering.Drilling and blasting method requires to use supporting leg type
The equipment such as air rock drill Drilling in the ore-rock of underground goes out a certain number of blastholes, realizes that tunnelling or ore are returned by explosion
Operation is adopted, rock penetration performance directly influences the production capacity of engineering construction progress and ore stoping operation.
When Drilling blasthole, air rock drill drives drill bit to rotate by drill steel.Driller's operating difficulties needs additional torsion after bit freezing
Square or auxiliary tool help are taken out, and spend the time long.And due to rock quality unevenness, crack or lava etc., withdraw from brill
Card pricker accident frequent occurrence when head.Once card pricker accident occurs, drill bit and drill steel will be stuck in hole wall and can not extract, only
Drill steel and drill bit in hole can be abandoned having crept into and increase equipment so that rock drilling aperture speed and rock penetration performance be greatly reduced
Cost.
Utility model content
The utility model proposes a kind of anti-sticking pricker blast hole bit of air rock drill, the purpose is to: card pricker accident is avoided,
Rock penetration performance is improved, production cost is saved.
Technical solutions of the utility model are as follows:
A kind of anti-sticking pricker blast hole bit of air rock drill, it is convex including ontology and the hard alloy that portion on the body is arranged
It rising, the body bottom portion offers the connecting hole for connecting drill steel, and the ontology includes first frustum of a cone and second frustum of a cone,
The upper end diameter of first frustum of a cone is greater than lower end diameter, and the upper end diameter of second frustum of a cone is less than lower end diameter, institute
Stating the upper end of first frustum of a cone, and the lower end of second frustum of a cone connects and diameter is equal；
The hard alloy protrusion be hemispherical, including several circumference uniform distributions on the circular conical surface of second frustum of a cone first
Protrusion and the second protrusion being arranged on the second circular cone countertop；
The groove of several arc-shapeds is also provided on the ontology, the groove is located at first frustum of a cone and second frustum of a cone
Joint and relative to body axis even circumferential arrange；
The groove is consistent with the quantity of the first protrusion and is spaced apart；
The first apopore is offered on each groove respectively, the second circular cone countertop offers the second apopore,
Each apopore is connected by being set at the top of the water hole and the connecting hole of body interior；
Be also provided on the male cone (strobilus masculinus) of first frustum of a cone with the one-to-one helicla flute of the groove, each helicla flute
Upper end is connected with corresponding groove.
Further improvement as the device: the taper of first frustum of a cone is 1:3.5 to 1:4.5.
Further improvement as the device: the taper of first frustum of a cone is 1:4.
Further improvement as the device: the outer edge of the outer edge of the connecting hole and first frustum of a cone bottom surface
Between spacing be 1.5 to 3mm.
Further improvement as the device: the connecting hole is taper hole.
Compared with the existing technology, the utility model has the positive effect that: (1) ontology is made of two frustums, upper end
Second frustum of a cone be responsible for drilling through to rock interior, first frustum of a cone of lower end can reduce resistance when taking-up, reduce rubble
A possibility that bite is between ontology and hole wall improves work efficiency to prevent the appearance of card pricker phenomenon, reduces work
The labor intensity of people, loss caused by eliminating drill bit, drill steel and can not taking out, reduces construction cost；(2) is arranged in groove
One apopore, while groove is connected with helicla flute, can not only cool down drill bit, but also can be along helicla flute by rubble, silt
Deng quick discharge, resistance when taking out drill bit is further reduced；The taper of (3) first frustums of a cone is limited to reasonable range
It is interior, on the one hand ensure that rubble etc. there are enough spaces to reserve, on the other hand can guarantee that the root of drill bit has enough intensity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic top plan view of Fig. 1.
Specific embodiment
The technical solution that according to the present invention will be described in detail below with reference to the accompanying drawings:
Such as Fig. 1 and 2, a kind of anti-sticking pricker blast hole bit of air rock drill, including the hard of ontology and setting portion on the body
Matter alloy protrusion, the body bottom portion offer the connecting hole 8 for connecting drill steel, and the connecting hole 8 is taper hole.The connecting hole
8 be engaged at the top of drill steel, meanwhile, the water route inside drill steel is entered connecting hole 8 by coolant liquid.
The ontology includes first frustum of a cone 1 and second frustum of a cone 2, under the upper end diameter of first frustum of a cone 1 is greater than
Diameter is held, the upper end diameter of second frustum of a cone 2 is less than lower end diameter, the upper end of first frustum of a cone 1 and the second circular cone
The lower end of platform 2 connects and diameter is equal.
The taper setting of first frustum of a cone 1 is particularly important, if taper is too small, rubble, silt is not enough
Space outflow, it may occur that obstruction, if taper is excessive, the wall thickness intensity of drill bit afterbody is unable to satisfy job requirements.Preferably,
The taper of first frustum of a cone 1 is 1:3.5 to 1:4.5.In the present embodiment, the taper of first frustum of a cone 1 is 1:4, tool
Body size are as follows: major diameter is φ 38mm, and it is highly 44mm that path, which is φ 27mm,.Further, it also should be guaranteed that the connecting hole 8
Outer edge and first frustum of a cone, 1 bottom surface outer edge between have certain thickness, preferably 1.5 to 3mm.
The hard alloy protrusion is hemispherical, including several circumference uniform distributions on the circular conical surface of second frustum of a cone 2 the
One protrusion 3 and the second protrusion 4 being arranged on second frustum of a cone, 2 top surface.
The groove 5 of several arc-shapeds is also provided on the ontology, the groove 5 is located at first frustum of a cone 1 and the second circle
2 joint of frustum and relative to body axis even circumferential arrange；
The groove 5 is consistent with the quantity of the first protrusion 3 and is spaced apart；In the present embodiment, groove 5 and the first protrusion 3
Quantity be three.
The first apopore 6 is offered on each groove 5 respectively, second frustum of a cone, 2 top surface offers the second water outlet
Hole 9, each apopore are connected by being set to the water hole of body interior with the top of the connecting hole 8.
It is also provided on the male cone (strobilus masculinus) of first frustum of a cone 1 and the one-to-one helicla flute 7 of the groove 5, each spiral
The upper end of slot 7 is connected with corresponding groove 5.
When taking out drill bit, first frustum of a cone 1 can reduce resistance when taking-up, reduce rubble bite ontology and hole wall it
Between a possibility that, to prevent the appearance of card pricker phenomenon, meanwhile, the first apopore 6 in groove 5 can be out of the water by rubble,
Silt etc. is quickly discharged along groove 5 and helicla flute 7, further reduces resistance when taking out drill bit.
According to practical situations, estimation is guarded, drilling efficiency can at least be improved 50% by the implementation of the utility model, together
When reduce energy consumption, there are 7 250KW air compressor machines to calculate by Shandong Jiaojia, every year can be about 820,000 yuan of energy saving cost.Together
When, the utility model using rear stope can by one day one class be changed to Liang Tian class Three, production efficiency improves 50%.
Claims (5)
1. a kind of anti-sticking pricker blast hole bit of air rock drill, raised including ontology and the hard alloy that portion on the body is arranged,
The body bottom portion offers the connecting hole (8) for connecting drill steel, it is characterised in that: the ontology includes first frustum of a cone
(1) and second frustum of a cone (2), the upper end diameter of first frustum of a cone (1) are greater than lower end diameter, second frustum of a cone (2)
Upper end diameter be less than lower end diameter, the upper end of first frustum of a cone (1) connects with the lower end of second frustum of a cone (2) and diameter
It is equal；
The hard alloy protrusion be hemispherical, including several circumference uniform distributions on the circular conical surface of second frustum of a cone (2) first
Raised (3) and second raised (4) being arranged on second frustum of a cone (2) top surface；
The groove (5) of several arc-shapeds is also provided on the ontology, the groove (5) is located at first frustum of a cone (1) and second
The frustum of a cone (2) joint and relative to body axis even circumferential arrange；
The groove (5) is consistent with the first raised quantity of (3) and is spaced apart；
It is offered respectively the first apopore (6) on each groove (5), second frustum of a cone (2) top surface offers second and goes out
Water hole (9), each apopore are connected by being set at the top of the water hole and the connecting hole (8) of body interior；
It is also provided on the male cone (strobilus masculinus) of first frustum of a cone (1) and the one-to-one helicla flute (7) of the groove (5), each spiral shell
The upper end of spin slot (7) is connected with corresponding groove (5).
2. the anti-sticking pricker blast hole bit of air rock drill as described in claim 1, it is characterised in that: first frustum of a cone
(1) taper is 1:3.5 to 1:4.5.
3. the anti-sticking pricker blast hole bit of air rock drill as claimed in claim 2, it is characterised in that: first frustum of a cone
(1) taper is 1:4.
4. the anti-sticking pricker blast hole bit of air rock drill as described in claim 1, it is characterised in that: the connecting hole (8)
Spacing between outer edge and the outer edge of first frustum of a cone (1) bottom surface is 1.5 to 3mm.
5. the anti-sticking pricker blast hole bit of the air rock drill as described in Claims 1-4 is any, it is characterised in that: the connection
Hole (8) is taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192772.8U CN209483223U (en) | 2019-02-13 | 2019-02-13 | The anti-sticking pricker blast hole bit of air rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192772.8U CN209483223U (en) | 2019-02-13 | 2019-02-13 | The anti-sticking pricker blast hole bit of air rock drill |
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| Publication Number | Publication Date |
|---|---|
| CN209483223U true CN209483223U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920192772.8U Active CN209483223U (en) | 2019-02-13 | 2019-02-13 | The anti-sticking pricker blast hole bit of air rock drill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916271A (en) * | 2022-05-27 | 2022-08-19 | 山东农业大学 | Garlic fertilization, film mulching, pesticide spraying, drip irrigation tape laying and punching integrated machine before sowing |
-
2019
- 2019-02-13 CN CN201920192772.8U patent/CN209483223U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916271A (en) * | 2022-05-27 | 2022-08-19 | 山东农业大学 | Garlic fertilization, film mulching, pesticide spraying, drip irrigation tape laying and punching integrated machine before sowing |
| CN114916271B (en) * | 2022-05-27 | 2023-08-11 | 山东农业大学 | All-in-one machine for fertilizing, coating, spraying medicine and paving drip irrigation belt before garlic sowing |
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