CN201687393U - Special drill bit for hard rocks - Google Patents
Special drill bit for hard rocks Download PDFInfo
- Publication number
- CN201687393U CN201687393U CN2010201979149U CN201020197914U CN201687393U CN 201687393 U CN201687393 U CN 201687393U CN 2010201979149 U CN2010201979149 U CN 2010201979149U CN 201020197914 U CN201020197914 U CN 201020197914U CN 201687393 U CN201687393 U CN 201687393U
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- CN
- China
- Prior art keywords
- drill
- drillstock
- drill bit
- handle
- drill body
- 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.)
- Expired - Lifetime
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Abstract
Disclosed is a special drill bit for hard rocks. A drill body at the front of the drill bit is connected with a drill handle at the tail of the drill bit, the drill body is a two-wing structure, fronts of two wings of the drill body are provided with cutting edges, the cutting edges are trapezoidal film coated alloy welded on the two wings, cooling water passages are arranged on the drill body and in the middle of the drill handle, the rear of a square is connected with a cylinder to form the drill handle, the square portion of the drill handle is provided with a U-shaped clip fixing hole, an O-shaped sealing ring is mounted in a narrow groove of the cylinder of the drill handle, a clamp bead is embedded on the square portion of the drill handle, and the outer periphery of the drill body is wound and welded with a spiral passage. The special drill bit is mainly used for drilling coal mine hard-coal layers and resolves the problem that the drill bit is burnt out caused by lacking of cooling water, and further, the service life of the drill bit is prolonged.
Description
Technical field:
The utility model relates to a kind of resistance rock target drill, is mainly used in the boring of middle hard coal seam under the coal mine.
Background technology:
In the Coal Production, adopt old-fashioned drill bit to creep at present, run into middle hard coal seam, because of bit body no-cooling-water passage, cooling water can't cool off drill bit, causes drill bit very easily to be burnt, and influences drilling life of bit.
Summary of the invention:
The purpose of this utility model provides a kind of resistance rock target drill, cooperates the special-purpose drilling rod of resistance rock to be used for hard coal seam and creeps into, and has solved the problem that causes burning of bits head because of the no-cooling-water cooling, the application life of having improved drill bit.
The purpose of this utility model realizes as follows: anterior drill body links to each other with the drillstock of afterbody, and drill body is two wing structures, and there is cooling-water duct at drill body and drillstock middle part.
Drillstock connects cylinder by the tetragonal body rear portion and constitutes.
The drillstock tetragonal body partly has the U type to fasten the hole.Drilling rod with snap in U type card after drill bit is connected, connect more firm.
In the cylindrical narrow groove of drillstock the O RunddichtringO is housed, prevent water flowing after connecting portion leak.
The drillstock tetragonal body partly studs with the card beans, is convenient to the perception drillstock and is inserted into the tram, has the characteristics such as fast and flexible, suitability are strong that connect.
The drill body periphery is twined and is welded with the spiral road, chip removal when being used to creep into.
There is cutting edge drill body both wings front portion, and cutting edge is the trapezoidal plated film alloy that is welded on the both wings, the cutting when being used to creep into.
The burning of bits problem that the no-cooling-water cooling caused during hard coal seam crept into during the utility model had solved under the coal mine.Improved the application life of drill bit.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to accompanying drawing, anterior drill body 2 links to each other with the drillstock 5 of afterbody, drill body 2 is two wing structures, and there is cutting edge 1 drill body 2 both wings front portions, and cutting edge 1 is for being welded on the trapezoidal plated film alloy on the both wings, drill body 2 has cooling-water duct 3 with drillstock 5 middle parts, drillstock 5 connects cylinder by the tetragonal body rear portion and constitutes, and drillstock 5 tetragonal bodies partly have the U type to fasten hole 6, in the drillstock 5 cylindrical narrow grooves O RunddichtringO 8 are housed, the tetragonal body of drillstock 5 partly studs with card beans 7, and drill body 2 peripheries are twined and are welded with spiral road 4.
Claims (7)
1. resist the rock target drill for one kind, anterior drill body links to each other with the drillstock of afterbody, and drill body is two wing structures, it is characterized in that: drill body (2) has cooling-water duct (3) with drillstock (5) middle part.
2. resistance rock target drill according to claim 1 is characterized in that: drillstock (5) connects cylinder by the tetragonal body rear portion and constitutes.
3. resistance rock target drill according to claim 2 is characterized in that: drillstock (5) tetragonal body partly has the U type to fasten hole (6).
4. resistance rock target drill according to claim 2 is characterized in that: in the cylindrical narrow groove of drillstock (5) O RunddichtringO (8) is housed.
5. resistance rock target drill according to claim 2 is characterized in that: drillstock (5) tetragonal body partly studs with card beans (7).
6. resistance rock target drill according to claim 1 is characterized in that: drill body (2) periphery is twined and is welded with spiral road (4).
7. resistance rock target drill according to claim 1 is characterized in that: there is cutting edge drill body (2) both wings front portion, and cutting edge is the trapezoidal plated film alloy that is welded on the both wings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201979149U CN201687393U (en) | 2010-05-11 | 2010-05-11 | Special drill bit for hard rocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201979149U CN201687393U (en) | 2010-05-11 | 2010-05-11 | Special drill bit for hard rocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687393U true CN201687393U (en) | 2010-12-29 |
Family
ID=43375677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201979149U Expired - Lifetime CN201687393U (en) | 2010-05-11 | 2010-05-11 | Special drill bit for hard rocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687393U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195372A (en) * | 2013-04-24 | 2013-07-10 | 中国水电顾问集团中南勘测设计研究院 | Spiral drill bit, foam drilling device and foam drilling process |
| CN104847256A (en) * | 2015-05-06 | 2015-08-19 | 辽宁工程技术大学 | Hard rock drilling apparatus |
| CN108533181A (en) * | 2018-03-14 | 2018-09-14 | 邹城兖矿泰德工贸有限公司 | Special drill bit for hard rocks |
| CN108915599A (en) * | 2018-07-24 | 2018-11-30 | 邹城兖矿泰德工贸有限公司 | Erosion control target drill |
| CN111236849A (en) * | 2020-03-04 | 2020-06-05 | 邹城兖矿泰德工贸有限公司 | PDC high-strength discharge drill bit |
-
2010
- 2010-05-11 CN CN2010201979149U patent/CN201687393U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195372A (en) * | 2013-04-24 | 2013-07-10 | 中国水电顾问集团中南勘测设计研究院 | Spiral drill bit, foam drilling device and foam drilling process |
| CN103195372B (en) * | 2013-04-24 | 2016-08-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of screw type bit and a kind of foam drilling device and foam drilling technique |
| CN104847256A (en) * | 2015-05-06 | 2015-08-19 | 辽宁工程技术大学 | Hard rock drilling apparatus |
| CN108533181A (en) * | 2018-03-14 | 2018-09-14 | 邹城兖矿泰德工贸有限公司 | Special drill bit for hard rocks |
| CN108533181B (en) * | 2018-03-14 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | Special drill bit for hard rocks |
| CN108915599A (en) * | 2018-07-24 | 2018-11-30 | 邹城兖矿泰德工贸有限公司 | Erosion control target drill |
| CN108915599B (en) * | 2018-07-24 | 2020-05-22 | 邹城兖矿泰德工贸有限公司 | Anti-impact special drill bit |
| CN111236849A (en) * | 2020-03-04 | 2020-06-05 | 邹城兖矿泰德工贸有限公司 | PDC high-strength discharge drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |