CN107234734A - Core drill - Google Patents
Core drill Download PDFInfo
- Publication number
- CN107234734A CN107234734A CN201710664723.5A CN201710664723A CN107234734A CN 107234734 A CN107234734 A CN 107234734A CN 201710664723 A CN201710664723 A CN 201710664723A CN 107234734 A CN107234734 A CN 107234734A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- fixed
- top cover
- pawl
- peeling knife
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
A kind of core drill, drilling pipe is cylindrical hollow cavity, is fixed with above its top cover at axis on drillstock, top cover and is provided with chip-removal hole；Drilling pipe bottom is fixed with the drill bit of annular, and drill bit lower end has extended downwardly from that cutter head is housed on pawl, pawl；Axially extending slotted eye is provided with the side wall of drilling pipe, the upward insertion top cover of the slotted eye, downward insertion drill bit rotates at slotted eye and is fixed with rotary knife bar, drill bit bottom is provided with peeling knife, peeling knife afterbody is fixed on rotary knife bar end, and rotary knife bar top end is fixed with handle；Peeling knife cutter head and the distance of its rotating shaft are drill bit inside radius, and peeling knife blade width is less than or equal to bit wall thickness.The structure of the present invention is novel, can integrally take out its internal material in the cylindrical cavities component such as processing graphite crucible, so as to realize the efficient utilization of rapidoprint.
Description
Technical field：
The present invention relates to drill bit, more particularly to a kind of core drill.
Background technology：
Graphite crucible has good thermal conductance and heat-resisting quantity, and during applied at elevated temperature, thermal coefficient of expansion is small, to urgency
Heat, chilling have certain stain resistance energy, and the corrosion resistance to acid, alkaline solution is stronger, with excellent chemical stability.
The industrial department such as metallurgy, casting, machinery, chemical industry, is widely used in smelting and the non ferrous metal and their alloy of alloy tool steel
Melting, and have preferable techno-economic effect.
The processing of conventional graphite crucible is first to cut crucible profile on a monoblock graphite, then mills out earthenware by milling machine
The cavity of crucible, this original processing method is very low to the utilization rate of graphite.
The content of the invention：
In consideration of it, being necessary to design a kind of core drill, the graphite of crucible cavity portion can integrally be taken out, so that convenient
Other products are processed into increase operation rate.
A kind of core drill, including：Drillstock, drilling pipe, drill bit, peeling knife, rotary knife bar, handle；Wherein, drilling pipe is in cylinder
It is fixed with above cavity body, its top cover at axis on drillstock, top cover and is provided with chip-removal hole；Drilling pipe bottom is fixed with the drill bit of annular,
Drill bit lower end has extended downwardly from that cutter head is housed on pawl, pawl；Axially extending slotted eye is provided with the side wall of drilling pipe, the slotted eye is upward
Rotated at insertion top cover, downward insertion drill bit, slotted eye and be fixed with rotary knife bar, drill bit bottom is provided with peeling knife, peeling knife afterbody is consolidated
Rotary knife bar end is scheduled on, rotary knife bar top end is fixed with handle；Peeling knife cutter head and the distance of its rotating shaft are drill bit inside radius, rotation
Cutting knife blade width is less than or equal to bit wall thickness.
In use, core drill is arranged on process equipment (such as drilling machine) by drillstock, by handle by peeling knife
Drill bit side-walls are hidden in, that is, keep peeling knife neither outwardly nor inwardly projecting, adjustment core drill highly connects drill bit
Graphite is touched, starting process equipment makes drill bit constantly be drilled down into, reaching makes core drill continue rotary cutting after desired depth, but protects
Hold highly constant, make peeling knife cutter head constantly to cutting at core drill axis while rotating handle, most cylindric graphite is cut at last
Break and take out.
It is preferred that, fixed block is additionally provided with top cover, fixed block is connected with rotary knife bar top, and fixed block sidepiece is connected with hand
Hole is provided with handle, fixed block and top cover correspondence position, and when making fixed block hole with the centering of top cover hole, peeling knife is hidden in drill bit side
At wall.
It is preferred that, fixed block hole is screwed hole with top cover hole, and is fixed by pin centering.
It is preferred that, the pawl number of bottom of drill bit is 4.
It is preferred that, cutter head is mounted in one end of pawl and the indentation, there between adjacent two pawl.
It is preferred that, cutter head is threadedly coupled with pawl.
It is preferred that, rotary knife bar is that key connects with peeling knife, fixed block.
It is preferred that, drillstock top is provided with downwards axial screwed hole.
The structure of the present invention is novel, can be overall by its internal material in the cylindrical cavities component such as processing graphite crucible
Take out, so as to realize the efficient utilization of rapidoprint.
Brief description of the drawings：
Accompanying drawing 1 is the main structure diagram of the core drill of a width better embodiment.
Accompanying drawing 2 is the overlooking the structure diagram of the core drill of a width better embodiment.
Accompanying drawing 3 is the present invention looks up structural representation of the core drill of a width better embodiment.
Accompanying drawing 4 is the A-A schematic cross-sectional views of the drilling pipe part of accompanying drawing 1.
Accompanying drawing 5 is the B-B schematic cross-sectional views of the drilling pipe part of accompanying drawing 1.
Accompanying drawing 6 is the main structure diagram of the top cover of a width better embodiment.
Accompanying drawing 7 is the peeling knife of a width better embodiment and the structural representation of drill bit.
In figure：Drillstock 1, drilling pipe 2, drill bit 3, peeling knife 4, rotary knife bar 5, handle 6, top cover 21, chip-removal hole 211, pawl 31, knife
First 32, slotted eye 22, fixed block 7, hole 71, hole 212.
Embodiment：
As shown in accompanying drawing 1~7, a kind of core drill, including：Drillstock 1, drilling pipe 2, drill bit 3, peeling knife 4, rotary knife bar 5, handle
6；Wherein, drilling pipe 2 is to be fixed with drillstock 1, top cover 21 to be provided with chip-removal hole at cylindrical hollow cavity, its top axis of top cover 21
211；The bottom of drilling pipe 2 is fixed with the drill bit 3 of annular, and the lower end of drill bit 3 has extended downwardly from that cutter head 32 is housed on pawl 31, pawl 31；Boring
Axially extending slotted eye 22 is provided with the side wall of cylinder 2, the upward insertion top cover 21 of the slotted eye 22, downward insertion drill bit 3, at slotted eye 22
Rotation is fixed with rotary knife bar 5, and the bottom of drill bit 3 is provided with peeling knife 4, and the afterbody of peeling knife 4 is fixed on the end of rotary knife bar 5, and rotary knife bar 5 is pushed up
Handle 6 is fixed with end；The distance of the cutter head of peeling knife 4 and its rotating shaft is the inside radius of drill bit 3, and the blade width of peeling knife 4 is less than etc.
In the wall thickness of drill bit 3.
In use, core drill is arranged on process equipment (such as drilling machine) by drillstock 1, by handle 6 by rotary-cut
Knife 4 is hidden in the side-walls of drill bit 3, that is, keeps peeling knife 4 neither outwardly nor inwardly projecting, and adjustment core drill highly makes brill
First 3 contact graphite, starting process equipment makes drill bit 3 constantly be drilled down into, and reaching makes core drill continue rotary cutting after desired depth
Cut, but keep highly constant, the cutter head of peeling knife 4 is constantly cut at core drill axis while rotating handle 6, most cylinder at last
Shape graphite cuts off and taken out.
In the present embodiment, fixed block 7 is additionally provided with top cover 21, fixed block 7 is connected with the top of rotary knife bar 5, it is fixed
The sidepiece of block 7, which is connected with handle 6, fixed block 7 and the correspondence position of top cover 21, is provided with hole 71, and 212, and make the hole 71 of fixed block 7 and top cover
During 21 212 centering of hole, peeling knife 4 is hidden in the side-walls of drill bit 3.The hole 71 of fixed block 7 and the hole 212 of top cover 21 are screwed hole, and are led to
Pin centering is crossed to fix.The pawl number of the bottom of drill bit 3 is 4.Cutter head 32 is mounted in one end of pawl 31 and between adjacent two pawl 31
Indentation, there.Cutter head 32 is threadedly coupled with pawl 31.Rotary knife bar 5 is that key connects with peeling knife 4, fixed block 7.Open downwards on the top of drillstock 1
There is axial screwed hole.
Claims (8)
1. a kind of core drill, it is characterised in that including：Drillstock, drilling pipe, drill bit, peeling knife, rotary knife bar, handle；Wherein, drilling pipe
It is fixed with for cylindrical hollow cavity, above its top cover at axis on drillstock, top cover and is provided with chip-removal hole；Drilling pipe bottom is fixed with ring
The drill bit of shape, drill bit lower end has extended downwardly from that cutter head is housed on pawl, pawl；Axially extending slotted eye is provided with the side wall of drilling pipe,
Rotated at the upward insertion top cover of the slotted eye, downward insertion drill bit, slotted eye and be fixed with rotary knife bar, drill bit bottom is provided with peeling knife, rotation
Cutting knife afterbody is fixed on rotary knife bar end, and rotary knife bar top end is fixed with handle；Peeling knife cutter head and the distance of its rotating shaft are brill
Head inside radius, peeling knife blade width is less than or equal to bit wall thickness.
2. core drill as claimed in claim 1, it is characterised in that fixed block, fixed block and rotary knife bar are additionally provided with top cover
Top is connected, and fixed block sidepiece is connected with handle, fixed block and top cover correspondence position and is provided with hole, and makes fixed block hole and top cover hole
During centering, peeling knife is hidden in drill bit side-walls.
3. core drill as claimed in claim 2, it is characterised in that fixed block hole is screwed hole with top cover hole, and passes through pin
Centering is fixed.
4. core drill as claimed in claim 1, it is characterised in that the pawl number of bottom of drill bit is 4.
5. core drill as claimed in claim 4, it is characterised in that cutter head is mounted in one end of pawl and between adjacent two pawl
Indentation, there.
6. the core drill as described in claim 1 or 4, it is characterised in that cutter head is threadedly coupled with pawl.
7. core drill as claimed in claim 2, it is characterised in that rotary knife bar is that key connects with peeling knife, fixed block.
8. core drill as claimed in claim 1, it is characterised in that drillstock top is provided with downwards axial screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664723.5A CN107234734B (en) | 2017-08-07 | 2017-08-07 | Hollow drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664723.5A CN107234734B (en) | 2017-08-07 | 2017-08-07 | Hollow drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107234734A true CN107234734A (en) | 2017-10-10 |
| CN107234734B CN107234734B (en) | 2023-03-21 |
Family
ID=59989505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710664723.5A Active CN107234734B (en) | 2017-08-07 | 2017-08-07 | Hollow drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107234734B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030448Y (en) * | 2006-10-26 | 2008-03-05 | 中国有色金属工业十一冶安装工程公司金属容器结构厂 | Hollow boring bit |
| RU2348789C1 (en) * | 2007-09-28 | 2009-03-10 | Николай Митрофанович Панин | Drill bit |
| CN102606078A (en) * | 2012-04-06 | 2012-07-25 | 杭州电子科技大学 | Threaded drill bit with rotatable ring and method for using same |
| JP2013204416A (en) * | 2012-03-29 | 2013-10-07 | Mitsuru Konno | Trench digging bit |
| CN203308413U (en) * | 2013-06-19 | 2013-11-27 | 郑玉辉 | Large-diameter drilling and coring device for soft-and-hard interbedding rock masses |
| CN105298127A (en) * | 2015-11-13 | 2016-02-03 | 中国水利水电第十六工程局有限公司 | Treatment method for concrete surface steel bar and tool special for treatment method |
| CN205605151U (en) * | 2016-05-12 | 2016-09-28 | 李聚宝 | Rock bottom cutting coring bit |
-
2017
- 2017-08-07 CN CN201710664723.5A patent/CN107234734B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030448Y (en) * | 2006-10-26 | 2008-03-05 | 中国有色金属工业十一冶安装工程公司金属容器结构厂 | Hollow boring bit |
| RU2348789C1 (en) * | 2007-09-28 | 2009-03-10 | Николай Митрофанович Панин | Drill bit |
| JP2013204416A (en) * | 2012-03-29 | 2013-10-07 | Mitsuru Konno | Trench digging bit |
| CN102606078A (en) * | 2012-04-06 | 2012-07-25 | 杭州电子科技大学 | Threaded drill bit with rotatable ring and method for using same |
| CN203308413U (en) * | 2013-06-19 | 2013-11-27 | 郑玉辉 | Large-diameter drilling and coring device for soft-and-hard interbedding rock masses |
| CN105298127A (en) * | 2015-11-13 | 2016-02-03 | 中国水利水电第十六工程局有限公司 | Treatment method for concrete surface steel bar and tool special for treatment method |
| CN205605151U (en) * | 2016-05-12 | 2016-09-28 | 李聚宝 | Rock bottom cutting coring bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107234734B (en) | 2023-03-21 |
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