CN108868618A - Convenient for the casting anchoring drill bit efficiently produced - Google Patents
Convenient for the casting anchoring drill bit efficiently produced Download PDFInfo
- Publication number
- CN108868618A CN108868618A CN201810879055.2A CN201810879055A CN108868618A CN 108868618 A CN108868618 A CN 108868618A CN 201810879055 A CN201810879055 A CN 201810879055A CN 108868618 A CN108868618 A CN 108868618A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- convenient
- casting
- annular boss
- blind hole
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 19
- 238000004873 anchoring Methods 0.000 title claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Adornments (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention belongs to Anchorage Technology fields.A kind of casting anchoring drill bit convenient for efficiently producing, including the threaded connection hole and transition blind hole in step arrangement, annular boss is provided on step end face between the threaded connection hole and transition blind hole, the internal diameter φ D of the annular boss is more than or equal to the transition diameter of blind hole.The application avoids the cleaning of thread root splashings, improve the efficiency of casting splashings cleaning, be conducive to be screwed into projected depth when anchor bar body is screwed with drill bit, to also improve the yield rate of casting anchoring drill bit, be finally reached the purpose for reducing production cost and improving production efficiency.
Description
Technical field
The invention belongs to ground anchorage field anchoring drill bit manufacturing fields, and in particular to a kind of casting convenient for efficiently producing
Anchoring drill bit.
Background technique
In existing ground anchorage field self-drilling anchor lever system, a large amount of all steel class drill bit is used, and all steel class is bored
Head is most of to use the production method cast in actual production, and what is generallyd use in industry is model casting mode, but molten
During die cast, threaded portion is also easy to produce splashings, especially thread root, and splashings herein is not easy to polish off, polishing consumption
It is time-consuming longer, and yield rate is lower, be unfavorable for production efficiency improves and reduces cost.Simultaneously but also with hollow bolt body
Projected depth can not be screwed into when screwing, to influence entire automatic anchor pole system lifetim.
Summary of the invention
The purpose of the present invention is in view of the above problems and insufficient, a kind of casting anchoring convenient for efficiently producing is provided
Drill bit avoids to clever structure the cleaning of thread root splashings, saves the labour of worker, while improving casting anchor
Gu the yield rate of drill bit.
In order to achieve the above objectives, it is adopted the technical scheme that：
A kind of casting anchoring drill bit convenient for efficiently producing, it is described including the threaded connection hole and transition blind hole in step arrangement
Annular boss is provided on step end face between threaded connection hole and transition blind hole.
As the preferred technical solution of the present invention, the height of annular boss raised step end face is h, wherein h >=
1.5mm。
As the preferred technical solution of the present invention, the internal diameter φ D of the annular boss is more than or equal to the transition blind hole
Diameter.
As the preferred technical solution of the present invention, the screw thread that the outer diameter φ D1 of the annular boss is less than threaded connection hole is small
Diameter, clearance t > 2mm between the two.
By adopting the above technical scheme, acquired beneficial effect is：
The cleaning provided by the invention that thread root splashings is avoided convenient for the casting anchoring drill bit that efficiently produces, improves casting
The efficiency of splashings cleaning is conducive to be screwed into projected depth when anchor bar body is screwed with drill bit, bores to also improve casting anchoring
The yield rate of head has been finally reached the purpose for reducing production cost and improving production efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, hereinafter by the attached drawing to the embodiment of the present invention into
Row is simple to be introduced.Wherein, attached drawing is used only for showing some embodiments of the present invention, rather than whole embodiments of the invention are limited
It is formed on this.
Fig. 1 shows a kind of structural representation convenient for the casting anchoring drill bit efficiently produced according to an embodiment of the present invention
Figure.
Serial number in figure：
1 it is transition blind hole, 2 be threaded connection hole, 3 be step end face, 4 is annular boss.
Specific embodiment
In order to enable the purpose of technical solution of the present invention, technical characteristic and technical effect are clearer, it hereinafter will knot
The attached drawing for closing the specific embodiment of the invention, is clearly and completely described the exemplary scenario of the embodiment of the present invention.Obviously, institute
The embodiment of description is a part of the embodiments of the present invention, instead of all the embodiments.Based on described reality of the invention
Example is applied, those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work belongs to
The scope of protection of the invention.
Referring to Fig. 1, a kind of casting anchoring drill bit convenient for efficiently producing of the present embodiment, including the screw thread in step arrangement
Connecting hole 2 and transition blind hole 1 are provided with annular boss on the step end face 3 between the threaded connection hole 2 and transition blind hole 1
4.The thread root suspension face of the threaded connection hole 2 is concordant with step end face 3, and anchor bar body encounters the ring when screwing in this drill bit
Projected depth is screwed into when shape boss 4.
The height of the 4 raised step end face 3 of annular boss is h, wherein h >=1.5mm.
The internal diameter φ D of the annular boss 4 is more than or equal to the diameter of the transition blind hole 1.
The outer diameter φ D1 of the annular boss 4 is less than the diameter of thread of threaded connection hole, clearance t > 2mm between the two.
In addition, influence of the size of the annular boss 4 to product weight is negligible.
Unless otherwise defined, the technical term or scientific term used herein should be in fields of the present invention and has
The ordinary meaning that the personage of general technical ability is understood.Used in present patent application specification and claims " the
One ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " also not necessarily indicates quantity limitation." comprising " or "comprising" etc.
Similar word mean to occur element or object before the word cover the element for appearing in the word presented hereinafter or object and
It is equivalent, and is not excluded for other elements or object.The similar word such as " connection " or " connected " not now due to physics or
The connection of person's machinery, but may include electrical connection, it is either direct or indirect."upper", "lower", " left side ",
" right side " etc. is only used for indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship
May correspondingly it change.
It is described in detail exemplary embodiment of the invention above in reference to preferred embodiment, however art technology
Personnel it will be appreciated that under the premise of without departing substantially from theory of the present invention, above-mentioned specific embodiment can be made a variety of modifications and
Remodeling, and multiple combinations can be carried out to each technical characteristic proposed by the present invention, structure, and without departing from protection model of the invention
It encloses, protection scope of the present invention is determined by the attached claims.
Claims (4)
1. a kind of casting anchoring drill bit convenient for efficiently producing, threaded connection hole and transition blind hole including being in step arrangement,
It is characterized in that, is provided with annular boss on the step end face between the threaded connection hole and transition blind hole.
2. the casting anchoring drill bit according to claim 1 convenient for efficiently producing, which is characterized in that the annular boss is convex
The height of step end face is h out, wherein h >=1.5mm.
3. the casting anchoring drill bit according to claim 1 convenient for efficiently producing, which is characterized in that the annular boss
Internal diameter φ D is more than or equal to the transition diameter of blind hole.
4. the casting anchoring drill bit according to claim 1 convenient for efficiently producing, which is characterized in that the annular boss
Outer diameter φ D1 is less than the diameter of thread of threaded connection hole, clearance t > 2mm between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879055.2A CN108868618B (en) | 2018-08-03 | 2018-08-03 | Cast anchoring drill bit convenient for efficient production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879055.2A CN108868618B (en) | 2018-08-03 | 2018-08-03 | Cast anchoring drill bit convenient for efficient production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868618A true CN108868618A (en) | 2018-11-23 |
| CN108868618B CN108868618B (en) | 2023-12-12 |
Family
ID=64307445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810879055.2A Active CN108868618B (en) | 2018-08-03 | 2018-08-03 | Cast anchoring drill bit convenient for efficient production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868618B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU870733A1 (en) * | 1979-09-04 | 1981-10-07 | Пермский Государственный Проектно-Конструкторский И Экспериментальный Институт Горного Машиностроения "Пермгипрогормаш" | Anchor for supporting workings |
| EP0259755A1 (en) * | 1986-09-10 | 1988-03-16 | Gd-Anker Gmbh | Rock anchoring bolt |
| SE0201984D0 (en) * | 2002-06-26 | 2002-06-26 | Sandvik Ab | Rock drill bit and process for its manufacture |
| CN1608166A (en) * | 2001-05-17 | 2005-04-20 | 阿特拉斯·科普科Mai有限公司 | Drill bit |
| US20110209922A1 (en) * | 2009-06-05 | 2011-09-01 | Varel International | Casing end tool |
| DE102010043769A1 (en) * | 2010-11-11 | 2012-05-16 | Hilti Aktiengesellschaft | Anchor assembly, especially for mining and tunneling |
| US20120267173A1 (en) * | 2011-04-25 | 2012-10-25 | Jones Mark L | Drill bit for boring earth and other hard materials |
| CN104594806A (en) * | 2013-10-30 | 2015-05-06 | 武穴市长江工具有限责任公司 | Reinforced type drilling drill bit with gauge protection step |
| CA2995108A1 (en) * | 2016-11-25 | 2018-05-25 | Nong Zhang | Self-drilling and self-anchoring extensible anchor rod applicable to soft and weak coal rocks and anchoring method thereof |
| CN208845102U (en) * | 2018-08-03 | 2019-05-10 | 洛阳中岩工程材料有限公司 | Convenient for the casting anchoring drill bit efficiently produced |
-
2018
- 2018-08-03 CN CN201810879055.2A patent/CN108868618B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU870733A1 (en) * | 1979-09-04 | 1981-10-07 | Пермский Государственный Проектно-Конструкторский И Экспериментальный Институт Горного Машиностроения "Пермгипрогормаш" | Anchor for supporting workings |
| EP0259755A1 (en) * | 1986-09-10 | 1988-03-16 | Gd-Anker Gmbh | Rock anchoring bolt |
| CN1608166A (en) * | 2001-05-17 | 2005-04-20 | 阿特拉斯·科普科Mai有限公司 | Drill bit |
| SE0201984D0 (en) * | 2002-06-26 | 2002-06-26 | Sandvik Ab | Rock drill bit and process for its manufacture |
| US20110209922A1 (en) * | 2009-06-05 | 2011-09-01 | Varel International | Casing end tool |
| DE102010043769A1 (en) * | 2010-11-11 | 2012-05-16 | Hilti Aktiengesellschaft | Anchor assembly, especially for mining and tunneling |
| US20120267173A1 (en) * | 2011-04-25 | 2012-10-25 | Jones Mark L | Drill bit for boring earth and other hard materials |
| CN104594806A (en) * | 2013-10-30 | 2015-05-06 | 武穴市长江工具有限责任公司 | Reinforced type drilling drill bit with gauge protection step |
| CA2995108A1 (en) * | 2016-11-25 | 2018-05-25 | Nong Zhang | Self-drilling and self-anchoring extensible anchor rod applicable to soft and weak coal rocks and anchoring method thereof |
| CN208845102U (en) * | 2018-08-03 | 2019-05-10 | 洛阳中岩工程材料有限公司 | Convenient for the casting anchoring drill bit efficiently produced |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868618B (en) | 2023-12-12 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Convenient and efficient production of cast anchor drill bits Granted publication date: 20231212 Pledgee: Bank of China Limited by Share Ltd. Luoyang branch Pledgor: LUOYANG ZHONGYAN ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980003162 |