CN209817942U - Insert column type gas extraction drill bit - Google Patents
Insert column type gas extraction drill bit Download PDFInfo
- Publication number
- CN209817942U CN209817942U CN201920476078.9U CN201920476078U CN209817942U CN 209817942 U CN209817942 U CN 209817942U CN 201920476078 U CN201920476078 U CN 201920476078U CN 209817942 U CN209817942 U CN 209817942U
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- CN
- China
- Prior art keywords
- jack
- post
- drill bit
- insert
- frustum
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- Expired - Fee Related
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Abstract
The utility model relates to an insert post formula gas drainage drill bit, include the brill body, insert post and the compound piece of diamond, the compound piece of diamond locates the top of inserting the post, it is hexagonal prism to insert the post, the top of the brill body is equipped with the frustum, the top of frustum is equipped with two first jacks along boring body axial direction central symmetry, the conical surface of frustum has a plurality of second jacks along the circumferencial direction equipartition, first jack and second jack all with insert the post phase-match, the bottom of first jack and second jack all is equipped with the purge hole that is less than first jack and second jack aperture, insert in the post is located first jack and second jack, insert the post and form the cutting face that links through along the rotation trajectory, still be equipped with hollow brill body hole on the brill body, brill body hole and purge hole are linked together. Compared with the prior art, the utility model discloses a split type structure reduces the wearing and tearing volume of drill bit, can effectively save the whole replacement cost of drill bit to reduce the gas drainage cost.
Description
Technical Field
The utility model relates to a gas drainage device technical field specifically, relates to an insert post formula gas drainage drill bit.
Background
According to the prior art, the gas extraction technology is generally adopted, the drill bit is a diamond composite sheet three-wing drill bit and a sintered body drill bit, the cutting edges of the drill bit and the drill body are integrally formed, the problem of abrasion of the drill bit with high value is still very prominent in the rock drilling operation, the drill bit needs to be integrally replaced after the drill bit is abraded to a certain degree, the drilling loss cost of each meter of drill hole in the rock drilling operation is generally 8 ~ 10 yuan, and the economical efficiency of the gas extraction operation is seriously influenced.
Therefore, a novel gas extraction drill bit is needed, the loss of the drill bit is controlled, the service life of the drill bit is prolonged, and the gas extraction cost is reduced.
SUMMERY OF THE UTILITY MODEL
The above-mentioned defect to prior art exists, the utility model provides an insert post formula gas drainage drill bit, include the drilling body, insert post and the compound piece of diamond, compound piece of diamond locates the top of inserting the post, it is hexagonal prism to insert the post, the top of the drilling body is equipped with the frustum, the top of frustum is equipped with two first jacks along drilling body axial direction central symmetry, the conical surface of frustum has a plurality of second jacks along the circumferencial direction equipartition, first jack and second jack all with insert the post phase-match, the bottom of first jack and second jack all is equipped with the purge hole that is less than first jack and second jack aperture, insert in the post is located first jack and second jack, insert the post and form the cutting face that links through along the rotation trajectory, still be equipped with hollow drilling body hole on the drilling body, drilling body hole and purge hole are linked together.
Preferably, the inserted column is connected with the drill body through a pin, so that the inserted column is prevented from falling off, and meanwhile, the inserted column is convenient to maintain and replace.
Preferably, the top of inserting the post is equipped with 1 or a plurality of diamond compact, the setting is hugged closely to the coaxial superpose of a plurality of diamond compact or parallel, the coaxial superpose of a plurality of diamond compact is used for increasing the wearability of inserting the post, and the life of post is inserted in the extension, the setting is hugged closely to a plurality of diamond compact parallels for the cutting face of increase drill bit is favorable to guaranteeing the aperture and the drilling efficiency of drilling.
Preferably, the inserted column in the second jack is acute angle with the drill bit drilling direction's contained angle for reduce the drilling resistance of the inserted column in the second jack, guarantee drilling efficiency, the angle of contained angle specifically can set up according to the aperture needs of drilling.
Preferably, the included angle between the insert column in the second jack and the drilling direction of the drill bit is 30 ~ 60 degrees, which is more beneficial to ensuring the continuity of the cutting surface of the drill bit, reducing the drilling resistance and improving the drilling efficiency.
Preferably, the conical surface of frustum has 2 ~ 8 second jacks along the circumferencial direction equipartition, bore the body hole and locate between the adjacent second jack, the jack number sets up according to the aperture and the geological conditions of drilling, and geological hardness is higher, and the jack sets up a little relatively, is convenient for prolong the life who inserts the post.
Preferably, the diamond compact piece is welded on the inserted column, is tightly connected, is not easy to fall off in use, and has high reliability.
The utility model discloses still including making other subassemblies of inserting post formula gas drainage drill bit normal use, be the conventional technical means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.
The utility model discloses an operating principle is, adopts and inserts post formula drill bit and replace conventional diamond compact piece three wing drill bits and sintered body drill bit, and this device adopts split type structure, to the post of inserting and the diamond compact piece of easy wearing and tearing, can in time change after wearing and tearing, makes to overhaul maintenance cost reduction and convenient operation. On the other hand, the inserting column adopts a hexagonal prism structure, so that rotation and shearing resistance can be prevented, the inserting column is not easy to fall off, and in order to further improve the reliability of the device, the inserting column is connected with the drill body through a pin, so that the inserting column is fixed more firmly. For preventing that first jack and second jack from inserting debris with inserting in the gap of post, the dismantlement of post is inserted in the influence, sets up the purge orifice in the bottom of first jack and second jack, is convenient for wash the maintenance of convenient drill bit from the purge orifice to impurity when the drill bit overhauls and maintains.
The beneficial effects of the utility model are that, simple structure, it is convenient to overhaul the maintenance, adopts split type structure, can reduce the wearing and tearing volume of drill bit, after inserting post and the compound piece wearing and tearing of diamond, remain the drill body only change insert the post can, can effectively save the whole replacement cost of drill bit to reduce gas drainage cost.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is a schematic view of an insert column structure according to embodiment 2 of the present invention.
Fig. 3 is a schematic view of an insert column structure according to embodiment 3 of the present invention.
In the figure: 1-drill body, 2-frustum, 3-inserted column, 4-diamond compact, 5-drill body hole and 6-pin.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Example 1
As shown in figure 1, the utility model provides a plug-in type gas extraction drill bit, which comprises a drill body 1, a plug-in column 3 and a diamond composite sheet 4, the diamond composite sheet 4 is arranged at the top end of the inserting column 3, the inserting column 3 is a hexagonal prism, the top end of the drill body 1 is provided with a frustum 2, the top end of the frustum 2 is provided with two first jacks which are symmetrical along the axial center of the drill body 1, the conical surface of the frustum 2 is uniformly distributed with a plurality of second jacks along the circumferential direction, the first jack and the second jack are matched with the inserting column 3, the bottom ends of the first jack and the second jack are respectively provided with a cleaning hole with the diameter smaller than that of the first jack and the second jack, the inserting columns 3 are arranged in the first jack and the second jack, the inserting columns 3 form a continuous cutting surface along a rotating track, the drill body 1 is further provided with a hollow drill body hole 5, and the drill body hole 5 is communicated with the cleaning hole.
The inserted column 3 is connected with the drill body 1 through a pin 6, so that the inserted column 3 is prevented from falling off, and meanwhile, the inserted column 3 is convenient to maintain and replace.
The top of inserting post 3 is equipped with 1 diamond compact 4.
The included angle between the inserted column 3 in the second jack and the drilling direction of the drill bit is 30 degrees, which is more favorable for ensuring the continuity of the cutting surface of the drill bit, reducing the drilling resistance and improving the drilling efficiency.
The conical surface of frustum 2 has 3 second jacks along the circumferencial direction equipartition, drill body hole 5 is located between the adjacent second jack, and the jack number sets up according to the aperture and the geological conditions of drilling, and geological hardness is higher, and the jack setting is a lot more relatively, is convenient for prolong the life of inserting post 3.
The diamond compact 4 is welded on the inserting column 3, is tightly connected, is not easy to fall off in use and has high reliability.
The utility model discloses an operating principle is, the adoption is inserted post formula drill bit and is replaced conventional diamond compact piece three wing drill bits and sintered body drill bit, this device adopts split type structure, to the post 3 and the diamond compact piece 4 of inserting of easy wearing and tearing, can in time change after wearing and tearing, make to overhaul maintenance cost reduction and convenient operation, on the other hand is inserted post 3 and is adopted hexagonal prism structure can prevent rotatory and anti-shear force, be difficult for droing, for further improving the reliability of device, will insert post 3 and bore 1 and pass through pin 6 and be connected, it is more firm to make to insert post 3 fixed. For preventing that first jack and second jack from inserting debris with inserting in the gap of post 3, the dismantlement of post 3 is inserted in the influence, sets up the purge orifice in the bottom of first jack and second jack, is convenient for wash impurity from the purge orifice when the drill bit overhauls and maintains, makes things convenient for the maintenance of drill bit.
Example 2
As shown in fig. 2, under the premise that the rest of the structure of embodiment 1 remains unchanged, 2 diamond compacts 4 on the inserted column 3 are provided, and two diamond compacts 4 are axially stacked, and the coaxial stacking of the two diamond compacts 4 is used for increasing the wear resistance of the inserted column 3, so as to prolong the service life of the inserted column 3.
Example 3
As shown in fig. 3, under the prerequisite that all the other structures of embodiment 1 remain inconvenient, insert diamond compact 4 on the post 3 and be equipped with 2, and two diamond compact 4 adopt the parallel setting of hugging closely, two diamond compact 4 parallels are hugged closely the setting and are used for increasing the cutting face of drill bit, are favorable to guaranteeing the aperture and the drilling efficiency of drilling.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a post formula gas drainage drill bit inserts, includes the drill body, its characterized in that: still including inserting post and the diamond compact piece, the diamond compact piece is located the top of inserting the post, it is hexagonal prism to insert the post, the top of boring the body is equipped with the frustum, the top of frustum is equipped with two first jacks of boring body axial direction central symmetry along the edge, the conical surface of frustum has a plurality of second jacks along the circumferencial direction equipartition, first jack and second jack all with insert the post phase-match, the bottom of first jack and second jack all is equipped with the purge hole that is less than first jack and second jack aperture, it locates in first jack and the second jack to insert the post, it forms the cutting face that links up along rotatory orbit to insert the post, still be equipped with hollow drill body hole on the boring the body, drill body hole and purge hole are linked together.
2. The plug-in type gas extraction drill bit according to claim 1, characterized in that: the inserted column is connected with the drill body by a pin.
3. The plug-in type gas extraction drill bit according to claim 1, characterized in that: insert the top of post and be equipped with 1 or a plurality of diamond compact, the coaxial superpose of a plurality of diamond compact or the parallel setting of hugging closely.
4. The plug-in type gas extraction drill bit according to claim 1, characterized in that: and an included angle between the inserted column in the second jack and the drilling direction of the drill bit is an acute angle.
5. The plug-in type gas extraction drill bit according to claim 4, characterized in that an included angle between a plug in the second jack and a drilling direction of the drill bit is 30 ~ 60 degrees.
6. The inserted column type gas extraction drill bit of claim 1, wherein 2 ~ 8 second insertion holes are uniformly distributed in the conical surface of the frustum along the circumferential direction, and the drill body hole is formed between the adjacent second insertion holes.
7. The plug-in type gas extraction drill bit according to claim 1, characterized in that: the diamond compact is welded on the inserting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476078.9U CN209817942U (en) | 2019-04-10 | 2019-04-10 | Insert column type gas extraction drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476078.9U CN209817942U (en) | 2019-04-10 | 2019-04-10 | Insert column type gas extraction drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209817942U true CN209817942U (en) | 2019-12-20 |
Family
ID=68879235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920476078.9U Expired - Fee Related CN209817942U (en) | 2019-04-10 | 2019-04-10 | Insert column type gas extraction drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209817942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882076A (en) * | 2019-04-10 | 2019-06-14 | 河南理工大学 | A kind of inserting column formula gas drainage drill bit |
-
2019
- 2019-04-10 CN CN201920476078.9U patent/CN209817942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882076A (en) * | 2019-04-10 | 2019-06-14 | 河南理工大学 | A kind of inserting column formula gas drainage drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20200410 |