CN207960501U - Can fast drilling multistage drill bit - Google Patents
Can fast drilling multistage drill bit Download PDFInfo
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- CN207960501U CN207960501U CN201721573346.6U CN201721573346U CN207960501U CN 207960501 U CN207960501 U CN 207960501U CN 201721573346 U CN201721573346 U CN 201721573346U CN 207960501 U CN207960501 U CN 207960501U
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Abstract
Can fast drilling multistage drill bit, including at least two drill bits；The brill diameter of each drill bit differs, and each drill bit is sequentially connected and is formed the multistage drill bit of Pagoda-shaped by the relationship for boring diameter increasing or decreasing.Drill bit includes the ontology and one group of wing head being circumferentially positioned on ontology in socket type；One group of wing head group includes at least three wing heads, and one group of wing head is on the sustained height of axial direction.The utility model has the advantage of compare single drill bit, rate of penetration multiplication, bore is gradually increased.Can creep into, also can reaming, it is vdiverse in function.The gradable dismounting of drill bit, so repair value is big after abrasion, it is bad where repair where.When broken formation is crept into, lengthened because drill bit is classified, so being not easy bit freezing, drilling efficiency greatly improves.
Description
Technical field
The utility model is related to the Noncoring drill bit of probing, especially it is a kind of can fast drilling multistage drill bit.
Background technology
Indent multiple-fin Noncoring drill bit is widely used in coal mine, geology oil exploration, quarrying and Tunnel Engineering and drills.With three
For wing Noncoring drill bit, existing coreless bit includes drill body, wing head, diamond compact and column.Drill bit sheet
Body is in the sleeve shaped of upper end closed lower ending opening, the inlet opening being connected to its endoporus is equipped on upper surface, outside upper end
Wall is equipped with the chip-removal hole being connected to its endoporus.Wing head quantity is three, and three wing heads are uniformly fixed in drill body in a ring
Upper end；Diamond compact has multi-disc, proper alignment and is fixed in each wing head respectively；Column is fixed in the upper of drill body
On end face.
There is shortcoming existing for above-mentioned Noncoring drill bit：1, centreless is drilled, and drill bit is to cut comprehensively to the cutting of rock stratum,
Rock stratum is big to drill bit resistance, therefore brill penetration rate is slow, and working efficiency is low.2, repair value is small after bit wear, and is not easy to tie up
It repaiies.3, drill bit is easy bit freezing when broken formation is crept into, and causes drilling efficiency relatively low.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and provide it is a kind of can fast drilling multistage drill bit,
It solves existing indent multiple-fin Noncoring drill bit and bores that penetration rate is slow, and working efficiency is low, and repair value is small after bit wear,
And be not easy to repair, drill bit is when broken formation is crept into the problem of easy bit freezing.
The technical solution of the utility model is：Can fast drilling multistage drill bit, including at least two drill bits；Each drill bit
It bores diameter to differ, each drill bit is sequentially connected and is formed the multistage drill bit of Pagoda-shaped by the relationship for boring diameter increasing or decreasing.
The further technical solution of the utility model is：Drill bit includes the ontology in socket type and is circumferentially positioned on ontology
One group of wing head；One group of wing head group includes at least three wing heads, and one group of wing head is on the sustained height of axial direction.
Further technical solution is the utility model：The quantity of drill bit is three, and one group of wing head on drill bit includes
Three wing heads.
The further technical solution of the utility model is：The wing head inner side end of drill bit is equipped with internal thread, the sheet of drill bit
Body is equipped with external screw thread in one end far from wing head；Drill bit is connected to by the external screw thread on ontology in one group of wing head of adjacent drill bit
Side.
The utility model has the following advantages that compared with prior art：
1, it is connected in sequence by the relationship for boring diameter increasing or decreasing by multiple drill bits, compares single drill bit, rate of penetration
Multiplication, bore are gradually increased.Can creep into, also can reaming, it is vdiverse in function.
2, the gradable dismounting of drill bit, so repair value is big after abrasion, it is bad where repair where.
3, it when broken formation is crept into, is lengthened because drill bit is classified, so being not easy bit freezing, drilling efficiency greatly improves.
The utility model is further described below in conjunction with figure and embodiment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the vertical view of Fig. 1.
Specific implementation mode
Embodiment 1：
As shown in Figure 1, 2, can fast drilling multistage drill bit, including three drill bits, the brill diameter of three drill bits 1 differ,
Each drill bit 1 is superimposed in the axial direction successively by the relationship that diameter successively decreases is bored, and forms the multistage drill bit of Pagoda-shaped.I.e. per upper level
（Close to the end of drill bit drilling direction）The brill diameter that one group of wing head on drill bit is formed is less than on adjacent next stage drill bit（Than upper one
Grade wing head group is farther away from the end of drill bit drilling direction）One group of wing head formed brill diameter.
Specific stacked system is between drill bit：1 ontology of drill bit, 1 lower end is fixedly mounted on one group of wing of next stage drill bit 1
The inside of head " joins end to end " between adjacent drill bit 1.
Drill bit 1 includes 11, one groups of wing heads of ontology and diamond compact 13.Ontology 11 is in the set of upper end closed lower ending opening
Tubular, thereon end face be equipped with the inlet opening that be connected to its endoporus, outer wall equipped with the chip-removal hole being connected to its endoporus,
Lower end outer wall is equipped with external screw thread.One group of wing head includes three wing heads 12, and three wing heads 12 are in the same height of axial direction
On degree (i.e. on the same plane of radial direction), three wing heads 12 are uniformly connected to 11 upper end of ontology, wing head 12 and sheet in a ring
It can be separate structure between body 11.Diamond compact 13 has multi-disc, proper alignment and is fixed in each wing head 12 respectively.
It is preferred that 12 inner side end of wing head of drill bit 1 is equipped with internal thread, the ontology 11 of drill bit 1 is in one end far from wing head 12
Equipped with external screw thread.Drill bit 1 is connected to by the external screw thread on ontology 11 on the inside of one group of wing head of adjacent drill bit 1.
Claims (2)
1. can fast drilling multistage drill bit, it is characterized in that：Including at least two drill bits (1)；The brill diameter of each drill bit (1) not phase
Together, each drill bit (1) is sequentially connected and is formed the multistage drill bit of Pagoda-shaped by the relationship for boring diameter increasing or decreasing；Drill bit (1) includes
Ontology (11) in socket type and one group of wing head being circumferentially positioned on ontology；One group of wing head group includes at least three wing heads
(12), one group of wing head is on the sustained height of axial direction；The quantity of drill bit (1) is three, one group of wing on drill bit (1)
Head includes three wing heads (12).
2. as described in claim 1 can fast drilling multistage drill bit, it is characterized in that：Wing head (12) inner end of drill bit (1)
Face is equipped with internal thread, and the ontology (11) of drill bit (1) is equipped with external screw thread in one end far from wing head (12)；Drill bit (1) passes through ontology
(11) external screw thread on is connected on the inside of one group of wing head of adjacent drill bit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573346.6U CN207960501U (en) | 2017-11-22 | 2017-11-22 | Can fast drilling multistage drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573346.6U CN207960501U (en) | 2017-11-22 | 2017-11-22 | Can fast drilling multistage drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207960501U true CN207960501U (en) | 2018-10-12 |
Family
ID=63724103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721573346.6U Active CN207960501U (en) | 2017-11-22 | 2017-11-22 | Can fast drilling multistage drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207960501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630661A (en) * | 2017-11-22 | 2018-01-26 | 祁东县锋速钻探工具有限公司 | Can fast drilling multistage drill bit |
| CN111236836A (en) * | 2020-01-17 | 2020-06-05 | 甘肃长达路业有限责任公司 | Drilling and reaming integrated device for constant-resistance large-deformation anchor rod |
-
2017
- 2017-11-22 CN CN201721573346.6U patent/CN207960501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630661A (en) * | 2017-11-22 | 2018-01-26 | 祁东县锋速钻探工具有限公司 | Can fast drilling multistage drill bit |
| CN111236836A (en) * | 2020-01-17 | 2020-06-05 | 甘肃长达路业有限责任公司 | Drilling and reaming integrated device for constant-resistance large-deformation anchor rod |
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