CN107642340A - A kind of Combined hard-alloy pilot drill - Google Patents
A kind of Combined hard-alloy pilot drill Download PDFInfo
- Publication number
- CN107642340A CN107642340A CN201711002867.0A CN201711002867A CN107642340A CN 107642340 A CN107642340 A CN 107642340A CN 201711002867 A CN201711002867 A CN 201711002867A CN 107642340 A CN107642340 A CN 107642340A
- Authority
- CN
- China
- Prior art keywords
- rotary
- drill bit
- drilling rod
- cut
- fix bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a kind of Combined hard-alloy pilot drill, including fix bar, drilling rod, fin, rotary-cut drill bit, rotary-cut brill tooth, cutter head, steady pin, fixing groove, spring, supporting plate and helical flute.The beneficial effects of the invention are as follows：Fix bar and drilling rod freely can be fixed and dismantled by the cooperation of steady pin and fixing groove, convenient dismounting and replacing rotary-cut drill bit, supporting plate is against drilling rod top and can moved up and down in fix bar, support bar can firmly prop up drilling rod all the time under the elastic force effect of spring, so that drilling rod connected with fix bar it is more stable and firm, fin and rotary-cut drill bit collectively form compound rotary-cut drill bit, the middle part of drilling is impacted by rotary-cut drill bit with rotary cutting mode, crushing, cutting is completed, completed jointly by rotary-cut drill bit and fin around drilling, improve composite drill bit cutting power, the bottom even distribution of fin is fixed with several cutter heads, cutter head undertakes part cutting task, reduce rotary-cut drill bit and fin abrasion.
Description
Technical field
The present invention relates to a kind of drill bit, specially a kind of Combined hard-alloy pilot drill, belong to machining equipment neck
Domain.
Background technology
Drill bit is in drilling process, directly and rock contact, the instrument of fractured rock is acted on by cutting, punching press etc., existing
Mainly have rock bit, a PDC drill bit for widely used drill bit in drilling engineering, rotary-cut drill bit be widely used in oil,
A kind of drill bit in matter field, it has higher hardness, wearability and service life, and existing rotary-cut drill bit is in more bit change
All mechanically disassembling from installation by drill bit are needed, it is very inconvenient, and also existing drill bit is stronger in abrasiveness
Stratum when, the gauge of drill bit can wear quickly, sometimes even can occur drill bit also without downward reaming to shaft bottom just because of gauge
The phenomenon worn and scrapped, the gauge effect of drill bit is bad, and the chip removal ability of existing drill bit is poor, it is easy to cuts
Bits residual, remains in chip area and follows drill bit to rotate together with, influence the normal cutting of drill bit.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides a kind of Combined hard-alloy pilot drill.
The present invention is achieved through the following technical solutions above-mentioned purpose：A kind of Combined hard-alloy pilot drill, including it is solid
Tooth, cutter head, steady pin, fixing groove, spring, supporting plate and helical flute are bored in fixed pole, drilling rod, fin, rotary-cut drill bit, rotary-cut；
Two fixing grooves are provided with the fix bar, the fix bar is internally provided with supporting plate, and the spring one end is fixed on
Inside fixed pole and the other end is fixed on the supporting plate, two symmetrical steady pins, the drilling rod installation are provided with the drilling rod
Inside fix bar and its upper end is against in supporting plate, and the steady pin on the drilling rod is stuck in the fixing groove in fix bar, institute
State fix bar and drilling rod can freely be fixed by the cooperation of steady pin and fixing groove and dismounting, the wing is provided with the drilling rod
Piece, the upward helical flute of spiral is provided with the drilling rod between the fin, the drilling rod bottom is fixed with rotary-cut drill bit,
Rotary-cut is fixed with the rotary-cut drill bit and bores tooth, the fin bottom on the rotary-cut drill bit top is fixed with cutter head, the fin and
Rotary-cut drill bit collectively forms compound rotary-cut drill bit.
Further, dismantle and change for convenience rotary-cut drill bit, the fix bar and drilling rod can be by steady pins and solid
The cooperation for determining groove is freely fixed and dismantled.
Further, in order that drilling rod connect with fix bar it is more stable with it is firm, the supporting plate is against brill
Bar top and it can be moved up and down in fix bar.
Further, in order to improve composite drill bit cutting power and gauge effect, the fin and the common structure of rotary-cut drill bit
Into compound rotary-cut drill bit.
Further, in order that the gauge ability and effect of composite drill bit are further strengthened, the bottom of the fin
It is uniformly distributed and is fixed with several cutter heads.
Further, in order that obtaining cutting swarf can be effectively discharged out, spiral is provided with the drilling rod between the fin
Upward helical flute.
The beneficial effects of the invention are as follows：Combined rotary cutting drill bit connection is compact, and reasonable in design, fix bar and drilling rod can lead to
The cooperation for crossing steady pin and fixing groove is freely fixed and dismantled, convenient to dismantle and change rotary-cut drill bit, it is not necessary to by whole drill bit
Dismantled from the machine of installation, supporting plate is against drilling rod top and can moved up and down in fix bar, and support bar can be in spring
Elastic force effect under firmly prop up drilling rod all the time so that more stable and firm, fin and the rotation that drilling rod connect with fix bar
Cut drill bit and collectively form compound rotary-cut drill bit, the middle part of drilling is impacted with rotary cutting mode by rotary-cut drill bit, crushed, cut
It is high into, rate of penetration, there is more preferable dynamic performance, even wearing is jointly complete by rotary-cut drill bit and fin around drilling
Into raising composite drill bit cutting power, gauge effect is good, and the bottom even distribution of fin is fixed with several cutter heads, and cutter head is held
Load part cutting task, while rotary-cut drill bit is reduced and fin wears, the gauge ability and effect that make composite drill bit obtain
Further strengthen, be provided with the upward helical flute of spiral on the drilling rod between fin, cutting swarf can be effectively from spiral
Chip area is discharged, and ensures the more smooth of box-like rotary-cut bit operation.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is fixed slot configurations schematic diagram of the present invention；
Fig. 3 is spring structure schematic diagram of the present invention；
Fig. 4 is debris slot structure schematic diagram of the present invention；
In figure：1st, fix bar, 2, drilling rod, 3, fin, 4, rotary-cut drill bit, 5, rotary-cut bore tooth, 6, cutter head, 7, steady pin, 8,
Fixing groove, 9, spring, 10, supporting plate, 11, helical flute.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1-4, a kind of Combined hard-alloy pilot drill, including fix bar 1, drilling rod 2, fin 3, rotary-cut drill bit
4th, tooth 5, cutter head 6, steady pin 7, fixing groove 8, spring 9, supporting plate 10 and helical flute 11 are bored in rotary-cut；In the fix bar 1
Two fixing grooves 8 are provided with, the fix bar 1 is internally provided with supporting plate 10, and described one end of spring 9 is fixed in fix bar 1
Portion and the other end is fixed in supporting plate 10, two symmetrical steady pins 7 are provided with the drilling rod 2, the drilling rod 2 is arranged on
Inside fix bar 1 and its upper end is against in supporting plate 10, and the steady pin 7 on the drilling rod 2 is stuck in the fixing groove 8 in fix bar 1
Interior, the fix bar 1 and drilling rod 2 freely can be fixed and dismantled by the cooperation of steady pin 7 and fixing groove 8, on the drilling rod 2
It is provided with fin 3, the upward helical flute 11 of spiral, the bottom of drilling rod 2 is provided with the drilling rod 2 between the fin 3
Rotary-cut drill bit 4 is fixed with, rotary-cut is fixed with the rotary-cut drill bit 4 and bores tooth 5, the bottom of fin 3 on the top of rotary-cut drill bit 4 is consolidated
Surely there is cutter head 6, the fin 3 and rotary-cut drill bit 4 collectively form compound rotary-cut drill bit.
A kind of technical optimization scheme as the present invention：The fix bar 1 and drilling rod 2 can pass through steady pin 7 and fixing groove 8
Cooperation is freely fixed and dismounting；The supporting plate 10 is against the top of drilling rod 2 and can moved up and down in fix bar 1；It is described
Fin 3 and rotary-cut drill bit 4 collectively form compound rotary-cut drill bit；The bottom even distribution of the fin 3 is fixed with several knives
First 6；The upward helical flute 11 of spiral is provided with drilling rod 2 between the fin 3.
In the use of the present invention, first inserting drilling rod inside fix bar, then drilling rod is supported on the supporting plate, and make
The steady pin obtained on drilling rod is stuck in the fixing groove in fix bar, then fix bar can be arranged on into drilling mechanically, i.e.,
It can start to begin to use, the Combined rotary cutting drill bit at work, by rotary-cut drill bit with rotary cutting mode impacted, pressed by the middle part of drilling
Broken, cutting is completed, and is completed jointly by rotary-cut drill bit and fin around drilling, and the cutter head of the bottom of fin undertakes part cutting and appointed
Business, cutting swarf can be discharged effectively from helical flute, ensure that the more smooth of box-like rotary-cut bit operation ought need to change
During drill bit, it is only necessary to which taking out the steady pin on drilling rod from fixing groove can take out drilling rod from fix bar, then
Replace with new drill bit.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
- A kind of 1. Combined hard-alloy pilot drill, it is characterised in that：Including fix bar (1), drilling rod (2), fin (3), rotary-cut Tooth (5), cutter head (6), steady pin (7), fixing groove (8), spring (9), supporting plate (10) and debris are bored in drill bit (4), rotary-cut Groove (11)；Two fixing grooves (8) are provided with the fix bar (1), the fix bar (1) is internally provided with supporting plate (10), Described spring (9) one end is fixed on fix bar (1) inside and the other end is fixed in supporting plate (10), is set on the drilling rod (2) Two symmetrical steady pins (7) are equipped with, the drilling rod (2) is arranged on fix bar (1) inside and its upper end is against supporting plate (10) On, the steady pin (7) on the drilling rod (2) is stuck in the fixing groove (8) in fix bar (1) Nei, and the wing is provided with the drilling rod (2) Piece (3), helical flute (11) is provided with the drilling rod (2), drilling rod (2) bottom is fixed with rotary-cut drill bit (4), described Rotary-cut is fixed with rotary-cut drill bit (4) and bores tooth (5), fin (3) bottom on rotary-cut drill bit (4) top is fixed with cutter head (6).
- A kind of 2. Combined hard-alloy pilot drill according to claim 1, it is characterised in that：The fix bar (1) and Drilling rod (2) can freely be fixed by the cooperation of steady pin (7) and fixing groove (8) and dismounting.
- A kind of 3. Combined hard-alloy pilot drill according to claim 1, it is characterised in that：The supporting plate (10) is supported It can move up and down on drilling rod (2) top and in fix bar (1).
- A kind of 4. Combined hard-alloy pilot drill according to claim 3, it is characterised in that：The fin (3) and rotation Cut drill bit (4) and collectively form compound rotary-cut drill bit.
- A kind of 5. Combined hard-alloy pilot drill according to claim 1, it is characterised in that：The bottom of the fin (3) Portion, which is uniformly distributed, is fixed with several cutter heads (6).
- A kind of 6. Combined hard-alloy pilot drill according to claim 1, it is characterised in that：Between the fin (3) Drilling rod (2) on be provided with the upward helical flute of spiral (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711002867.0A CN107642340A (en) | 2017-10-24 | 2017-10-24 | A kind of Combined hard-alloy pilot drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711002867.0A CN107642340A (en) | 2017-10-24 | 2017-10-24 | A kind of Combined hard-alloy pilot drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107642340A true CN107642340A (en) | 2018-01-30 |
Family
ID=61123252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711002867.0A Pending CN107642340A (en) | 2017-10-24 | 2017-10-24 | A kind of Combined hard-alloy pilot drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107642340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908487A (en) * | 2018-08-10 | 2018-11-30 | 湖州苕溪文化创意有限公司 | Drilling equipment is used in a kind of production and processing of writing brush penholder |
-
2017
- 2017-10-24 CN CN201711002867.0A patent/CN107642340A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908487A (en) * | 2018-08-10 | 2018-11-30 | 湖州苕溪文化创意有限公司 | Drilling equipment is used in a kind of production and processing of writing brush penholder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180130 |
|
| WD01 | Invention patent application deemed withdrawn after publication |