CN2462068Y - Rotary bull rod for roofbolt drilling machine - Google Patents
Rotary bull rod for roofbolt drilling machine Download PDFInfo
- Publication number
- CN2462068Y CN2462068Y CN 00266883 CN00266883U CN2462068Y CN 2462068 Y CN2462068 Y CN 2462068Y CN 00266883 CN00266883 CN 00266883 CN 00266883 U CN00266883 U CN 00266883U CN 2462068 Y CN2462068 Y CN 2462068Y
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- CN
- China
- Prior art keywords
- utility
- rod
- drilling
- model
- drilling rod
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- Expired - Fee Related
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Abstract
The utility model relates to a rotary drilling rod for an anchor rod drilling machine. The utility model solves the problems that when an anchor rod is supported in a soft roadway, and a hole needs to be drilled in a dry mode, a drilling rod is frequently held by rock mud, a drilling machine is clamped to be stopped, an effect on forming the hole is poor, etc. The utility model is characterized in that the outer side of an original hexagonal cross-section drilling rod is fixedly provided with a helical steel band which has a definite screw pitch and a definite spiral tilt angle; the rigidity can be ensured, and simultaneously, the chip throwing capacity for the drilling rod is enhanced; Therefore, the utility model can simultaneously satisfy two requirements for drilling a hole in a wet mode and in a dry mode, the utility model can be fit for rock formations of different hardness, the speed for drilling a hole is high, a deep hole can also be drilled, and the supporting efficiency and the construction quality can be improved.
Description
The utility model relates to a kind of revolution drilling rod that is used for jumbolter, can be extensive use of in roadway supports such as underground mining, railway tunnel and hydraulic engineering construction.
In recent years, bolt support technology more and more has been applied in the engineering of underground passage, but because the difference of geological conditions adopts the drilling rod of traditional structure jumbolter that place not fully up to expectations is just arranged.As finding in practice, for soft-rock tunnel or the big rock stratum roof plate of water content, when using present hexagon drilling rod to implement dry drilling, rock mud usually occurs and embrace drilling rod, the stuck phenomenon that can not rotate of rig, its pore-forming weak effect simultaneously, penetration rate is slow, thereby influences workmanship and progress; And if adopt common soft rock drilling rod (being twist drill rods) boring, except that connecting inconvenience, its rigidity is also not enough, the drilling rod phenomenon that fractures can occur, and causes the accident.
The purpose of this utility model is to provide a kind of revolution drilling rod that is specifically designed to jumbolter, the problem that it occurs in the time of can solving dry drilling in the above-mentioned soft-rock tunnel bolt support.
Technical solution of the present utility model is: this revolution drilling rod that is used for jumbolter, has the body of rod that section configuration is six sides, and two ends are respectively arranged with the internal thread hole that is used to connect drill bit and realize the cylindrical connecting section of pegging graft with jumbolter, and along the axial outside of the body of rod in the shape of a spiral shape be fixedly connected with steel band.
Characteristics compared with prior art of the present utility model are conspicuous.Because the external structure of this drilling rod combines the characteristics of above-mentioned existing drilling rod, make it when guaranteeing rigidity, again can be along the smooth chip removal in ribbon spiral inclination angle, promptly improve and strengthen drilling rod and get rid of the ability of rock mass break flour, not only realize being applicable to simultaneously two kinds of demands of wet boring and dry drilling thus, and solved the problem of pore-forming difference in the present soft rock bolt support.Test shows that this drilling rod has the following advantages:
1, the rock stratum that can be used for different hardness, so accommodation is big.
2, effective because of chip removal, so penetration rate is fast, roadway support speed and efficient also improve greatly, can guarantee the construction speed and the quality in tunnel.
3, because rational in infrastructure, not only rigidity is big, is connected with jumbolter and very convenient, so be easy to realize be complementary with dissimilar jumbolters, has satisfied the job requirement of jumbolter under different propulsive forces.
4, this drilling rod is big because of its intensity height, rigidity, the time can not produce deflection in boring, and hole shape is good, and can drilling deep hole, as boring darker anchor cable hole and visiting water hole etc.
5, the processing and manufacturing of the utility model drilling rod is simple, and convenient disassembly helps using and keeping in repair.
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
Referring to Fig. 1.This revolution drilling rod that is used for jumbolter, having section configuration is six sides' the body of rod 1, the one end is provided for connecting the drill bit internal thread hole of (or connecting extension arm when needed), and the other end has the cylindrical connecting section of realize pegging graft with jumbolter, so that directly mount and dismount when using.In order to improve the rigidity of revolution drilling rod, guarantee the smooth and easy of dry drilling chip removal again simultaneously, at the fixedly connected steel band 2 of shape in the shape of a spiral along the axial outside of the body of rod 1.
Above-mentioned helical form steel band 2 fixedly be wound up as pitch B=40-70mm, helix angle α=10 °-30 °.The section of steel band 2 can be trapezoidal or rectangle, and its height should be in the 3-6mm scope, and the base width for guarantee and the body of rod 1 between fixedly contact surface and bonding strength, this value should be less than 6mm.
Claims (3)
1, a kind of revolution drilling rod that is used for jumbolter, having section configuration is six sides' the body of rod 1, and two ends are provided for connecting the internal thread hole of drill bit and the cylindrical connecting section of pegging graft with the jumbolter realization respectively, it is characterized in that shape is fixedly connected with steel band 2 in the shape of a spiral along the axial outside of the body of rod 1.
2, revolution drilling rod as claimed in claim 1 is characterized in that, above-mentioned helical form steel band 2 fixedly should be pitch B=40-70mm, helix angle α=10 °-30 °.
3, revolution drilling rod as claimed in claim 1 is characterized in that, the section of steel band 2 is got a kind of of trapezoidal or rectangle, and its height is in the 3-6mm scope, and base width 〉=6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266883 CN2462068Y (en) | 2000-12-22 | 2000-12-22 | Rotary bull rod for roofbolt drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266883 CN2462068Y (en) | 2000-12-22 | 2000-12-22 | Rotary bull rod for roofbolt drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462068Y true CN2462068Y (en) | 2001-11-28 |
Family
ID=33620854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266883 Expired - Fee Related CN2462068Y (en) | 2000-12-22 | 2000-12-22 | Rotary bull rod for roofbolt drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462068Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305033A (en) * | 2011-08-05 | 2012-01-04 | 长安大学 | Drilling bucket for rotary drilling rig |
| CN109594935A (en) * | 2019-01-15 | 2019-04-09 | 高九华 | Interior deslagging binary channels drilling rod |
| CN110306936A (en) * | 2019-07-09 | 2019-10-08 | 煤炭科学技术研究院有限公司 | A kind of drilling cuttings method special project drilling machine |
-
2000
- 2000-12-22 CN CN 00266883 patent/CN2462068Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305033A (en) * | 2011-08-05 | 2012-01-04 | 长安大学 | Drilling bucket for rotary drilling rig |
| CN109594935A (en) * | 2019-01-15 | 2019-04-09 | 高九华 | Interior deslagging binary channels drilling rod |
| CN110306936A (en) * | 2019-07-09 | 2019-10-08 | 煤炭科学技术研究院有限公司 | A kind of drilling cuttings method special project drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |