CN205823164U - A kind of down-the-hold drill bit - Google Patents
A kind of down-the-hold drill bit Download PDFInfo
- Publication number
- CN205823164U CN205823164U CN201620366810.3U CN201620366810U CN205823164U CN 205823164 U CN205823164 U CN 205823164U CN 201620366810 U CN201620366810 U CN 201620366810U CN 205823164 U CN205823164 U CN 205823164U
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- CN
- China
- Prior art keywords
- powder output
- output slot
- face
- bit body
- connecting rod
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- 239000000843 powder Substances 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 44
- 239000002893 slag Substances 0.000 abstract description 32
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000013467 fragmentation Methods 0.000 abstract description 2
- 238000006062 fragmentation reaction Methods 0.000 abstract description 2
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model discloses a kind of down-the-hole drilling tool, its drip irrigation device is bit body and the connecting rod including integrally connecting, bit body and connecting rod are coaxial cylinder, connecting rod is boring structure, bit body includes end face and side, end face is provided with button, side is provided with some main powder output slots, it is provided with passage in main powder output slot, it is characterized in that: on end face, be provided with the auxiliary powder output slot that some and main powder output slot is connected, auxiliary powder output slot is distributed along the centrosymmetry of bit body, it is provided with passage in auxiliary powder output slot, the setting of auxiliary powder output slot accelerates the discharge of rock slag, improve the long-pending repetition Fragmentation Phenomena caused of rock slag muck, and passage achieves part rock slag and discharges boring in being located at auxiliary powder output slot, improve rock slag expulsion efficiency.
Description
Technical field
This utility model relates to down-the-hole drilling tool field, particularly to a kind of down-the-hold drill bit.
Background technology
Before hidden hole drilling is engineering explosion, for the equipment of carry out holing at rock (blasting charge in the hole being drilled), down-the-hole
Drill bit is mainly used for hitting rock in the borehole.
At present, the down-the-hold drill bit on market mainly includes bit body and connecting rod, and bit body is provided with powder output slot, venthole
And button, their powder output slot is generally located in the side of bit body, the rock slag of the end face of bit body, in part relies on passage
Gases at high pressure blowout boring, part needs through powder output slot, and powder output slot is located at bit body side and makes row's powder very inconvenient, rock
Slag can not be discharged in time, and those rock slags do not discharged in time can be piled up, and duplicates Fragmentation Phenomena.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is a kind of hidden hole drilling that the row's of offer powder is effective
Head.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of down-the-hold drill bit, bag
Including bit body and connecting rod that one connects, bit body and connecting rod are coaxial cylinder, and connecting rod is boring structure,
Bit body is provided with button and passage, and bit body includes end face and side, and side is provided with some main powder output slots, on side
Passage be located in main powder output slot, end face is provided with the auxiliary powder output slot that some and main powder output slot is connected, auxiliary powder output slot edge
The centrosymmetry distribution of bit body, the passage on end face is located in auxiliary powder output slot.
By above-mentioned setting, end face is provided with auxiliary powder output slot can make the rock slag of generation on end face pass through auxiliary powder output slot, auxiliary
Most of rock slag in powder output slot can arrive main powder output slot, and is located at the passage in auxiliary powder output slot, it is possible to accelerates rock slag and discharges
Boring, the velocity of discharge of the rock slag on the end face thus accelerated, it is to avoid the problem that rock slag muck is long-pending occurs, reduces and repeat to crush
Phenomenon, accelerate work efficiency.
This utility model is further arranged to: being provided with the back taper inclined-plane for transition between end face and side, button is divided
Cloth is on back taper inclined-plane and circumferentially.
By technique scheme, first the button of bit body end face can touch rock, fractured rock, and rive Yi Tiaolu
Footpath, then the button on back taper inclined-plane can crush the rock of these paths both sides, has widened path, accelerates the broken of rock,
The mode of circle distribution makes each button uniform force on back taper inclined-plane, it is to avoid unbalance stress causes the breakage of button.
This utility model is further arranged to: button is distributed between the main powder output slot of adjacent two.
By technique scheme, button can fractured rock, broken rock slag can be by two adjacent main powder delivery
Groove, the rock slag discharge after crushing timely, two main powder output slot deslagginves have speeded up the expulsion efficiency of rock slag.
This utility model is further arranged to: back taper inclined-plane is 30 ° with the angle of horizontal direction.
By technique scheme, back taper inclined-plane the effect itself playing transition is set, and by back taper inclined-plane and level
The angle in direction is set to 30 °, and arranging of this angle is scientific and reasonable, it is possible to make the work efficiency of the button on back taper inclined-plane reach
Bigization, and the discharge of rock slag is timely, does not haves the problem that the overload of work causes bit freezing behavior and rock slag muck to amass.
This utility model is further arranged to: the button on end face is distributed in the radial position of corresponding main powder output slot.
By technique scheme, end face is provided with button, and button correspondence is distributed in the radial position of main powder output slot, button
Broken rock slag can arrive auxiliary powder output slot, and the rock slag not over auxiliary powder output slot then can arrive main powder delivery with the shortest distance
Groove, the expulsion efficiency of rock slag is high, so the position that button arranges arrangement is reasonable, deslagging efficiency is high.
This utility model is further arranged to: main powder output slot and auxiliary powder output slot cross section are circular arc, and main powder output slot
Width is more than the width of auxiliary powder output slot.
By technique scheme, the width of main powder output slot is that by auxiliary powder output slot more than the width of auxiliary powder output slot
Rock slag can be all introduced in main powder output slot, circular arc inherently has certain radian, there are not corner angle, just can make rock slag
It is accessible to auxiliary powder output slot, it is to avoid the existence of corner angle makes the part rock slag to cannot be introduced into the phenomenon of auxiliary powder output slot.
This utility model is further arranged to: connecting rod is internally threaded.
By technique scheme, connecting rod is for being connected with beater mechanism by down-the-hold drill bit, and arranging of screw thread can make
Down-the-hold drill bit and beater mechanism realize firm being connected but also can realizing dismounting, more convenient when replacing down-the-hold drill bit.
This utility model is further arranged to: bit body is hard alloy with the material of connecting rod.
By technique scheme, the most all there is due to rock bigger hardness, can produce high in boring procedure
Temperature, so needing the hardness of drill bit more greatly, and also high temperature resistant, and alloy material just has these features.
In sum, what this utility model in contrast to prior art has the beneficial effect that auxiliary powder output slot on bit body end face
Arrange, accelerate the velocity of discharge of rock slag, and part rock slag directly can also be discharged boring, rock slag expulsion efficiency by gases at high pressure
High, it is to avoid rock slag muck is long-pending and repeats break phenomenon, and stable connection, the mode of connection is simple, but also it is big to have hardness,
Resistant to elevated temperatures feature.
Accompanying drawing explanation
Fig. 1 is the main TV structure figure of embodiment；
Fig. 2 is the upper TV structure figure of embodiment；
Fig. 3 is the lower TV structure figure of embodiment.
Reference: 1, bit body；2, connecting rod；3, button；4, passage；5, end face；6, side；7, back taper inclined-plane；
8, main powder output slot；9, auxiliary powder output slot；10, screw thread.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Down-the-hold drill bit in Fig. 1, includes bit body 1 and connecting rod 2 that one connects, and connecting rod 2 is internal is hollow knot
Structure, is provided with eight main powder output slots 8 in the side 6 of bit body 1, is provided with two auxiliary powder output slots 9, two auxiliary powder output slots 9 on end face 5
It is connected with two main powder output slots 8, other six the main powder delivery of the width ratio of the main powder output slot 8 being wherein connected with auxiliary powder output slot 9
The width of groove 8 is big, and two passages 4 on end face 5 are located in auxiliary powder output slot 9, and the passage 4 on side 6 is located at and end face 5
The position that passage 4 is perpendicular, the passage 4 on side 6 is located in main powder output slot 8, and end face 5 is provided with button 3.
In Fig. 2, the distribution of auxiliary powder output slot 9 is as shown in FIG., and two auxiliary powder output slots 9 on end face 5 go out with 6 two, side master
Powder groove 8 is connected, and passage 4 is located in auxiliary powder output slot 9, and the button 3 on end face 5 is distributed in the radial direction position of corresponding main powder output slot 8
Put, and the button 3 on back taper inclined-plane 7 is distributed between the main powder output slot of adjacent two 8, the broken rock slag of button 3 on end face 5
Arrive main powder output slot 8 by auxiliary powder output slot 9, be discharged in boring, and the rock slag of part also can be during by auxiliary powder output slot 9
The gases at high pressure blowout boring discharged in passage in auxiliary powder output slot 94.
When down-the-hold drill bit is to be used, connecting rod 2 is connected with the beater mechanism of hidden hole drilling, the piston within beater mechanism
Meeting drill hammer body 1, bit body 1 will be acted on by power, and the button 3 on end face 5 first touches rock, will start to crush
Rock, on end face 5, fragmented rock can pass through auxiliary powder output slot 9, and the rock slag not over auxiliary powder output slot 9 can arrive with the shortest distance
Reaching main powder output slot 8, arrive in main powder output slot 8 by the rock slag major part of auxiliary powder output slot 9, a part is by the high pressure in passage 4
Gas blow-out is holed, and the button 3 on back taper inclined-plane 7 can crush the rock of bit body 1 side 6, the path of the boring widened, by
Button 3 on back taper inclined-plane 7 is distributed in the middle part of two main powder output slots 8, so the rock slag that each button 3 crushes is permissible
By discharging in any one main powder output slot 8 of both sides, row's powder speed is fast.
In Fig. 3, being provided with screw thread 10 in connecting rod 2, connecting rod 2 can be connected by screw thread 10 with the beater mechanism of hidden hole drilling
Get up.
And the material of bit body 1 and connecting rod 2 is hard alloy, selecting specification in actual production is 22SiMnCr2Mo
Steel, this material is high temperature resistant, and hardness is big, so comparing the material being suitable as this down-the-hold drill bit.
The above is only exemplary embodiment of the present utility model, not for limiting protection model of the present utility model
Enclosing, protection domain of the present utility model is determined by appended claim.
Claims (8)
1. a down-the-hold drill bit, including the bit body (1) integrally connected and connecting rod (2), bit body (1) with connecting rod (2) is
Coaxial cylinder, connecting rod (2) is boring structure, and bit body (1) is provided with button (3) and passage (4), bit body
(1) including end face (5) and side (6), side (6) are provided with some main powder output slots (8), and the passage (4) on side (6) sets
In main powder output slot (8), it is characterized in that: on end face (5), be provided with the auxiliary powder output slot (9) that some and main powder output slot (8) is connected,
Auxiliary powder output slot (9) is distributed along the centrosymmetry of bit body (1), and the passage (4) on end face (5) is located in auxiliary powder output slot (9).
A kind of down-the-hold drill bit the most according to claim 1, is characterized in that: be provided with between end face (5) and side (6) for
The back taper inclined-plane (7) of transition, it is upper and circumferentially that button (3) is distributed in back taper inclined-plane (7).
A kind of down-the-hold drill bit the most according to claim 2, is characterized in that: button (3) is distributed in the main powder delivery of adjacent two
Between groove (8).
A kind of down-the-hold drill bit the most according to claim 2, is characterized in that: back taper inclined-plane (7) with the angle of horizontal direction are
30°。
A kind of down-the-hold drill bit the most according to claim 1, is characterized in that: the button (3) on end face (5) is distributed in corresponding main
The radial position of powder output slot (8).
A kind of down-the-hold drill bit the most according to claim 1, is characterized in that: main powder output slot (8) is equal with auxiliary powder output slot (9) cross section
For circular arc, and the width of main powder output slot (8) is more than the width of auxiliary powder output slot (9).
A kind of down-the-hold drill bit the most according to claim 1, is characterized in that: connecting rod (2) is internally threaded (10).
A kind of down-the-hold drill bit the most according to claim 1, is characterized in that: bit body (1) is with the material of connecting rod (2)
Hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366810.3U CN205823164U (en) | 2016-04-26 | 2016-04-26 | A kind of down-the-hold drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366810.3U CN205823164U (en) | 2016-04-26 | 2016-04-26 | A kind of down-the-hold drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205823164U true CN205823164U (en) | 2016-12-21 |
Family
ID=58148084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620366810.3U Active CN205823164U (en) | 2016-04-26 | 2016-04-26 | A kind of down-the-hold drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205823164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165163A (en) * | 2021-12-09 | 2022-03-11 | 河南省远基岩土工程有限公司 | Multifunctional down-the-hole drill bit |
-
2016
- 2016-04-26 CN CN201620366810.3U patent/CN205823164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165163A (en) * | 2021-12-09 | 2022-03-11 | 河南省远基岩土工程有限公司 | Multifunctional down-the-hole drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 318058 Sishui and Tangshangcun, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Planka Brazing Tool Co.,Ltd. Address before: 318058 Sishui and Tangshangcun, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG PULANKA ROCK TOOLS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou Shanhe Trading Co.,Ltd. Assignor: Zhejiang Planka Brazing Tool Co.,Ltd. Contract record no.: X2023330000877 Denomination of utility model: A type of downhole drill bit Granted publication date: 20161221 License type: Common License Record date: 20231124 |
|
| EE01 | Entry into force of recordation of patent licensing contract |