CN102953684A - Drill rod with ream bit - Google Patents
Drill rod with ream bit Download PDFInfo
- Publication number
- CN102953684A CN102953684A CN2012105000507A CN201210500050A CN102953684A CN 102953684 A CN102953684 A CN 102953684A CN 2012105000507 A CN2012105000507 A CN 2012105000507A CN 201210500050 A CN201210500050 A CN 201210500050A CN 102953684 A CN102953684 A CN 102953684A
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- China
- Prior art keywords
- drill bit
- drill rod
- bit
- drilling rod
- blade
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Abstract
The invention discloses a drill rod with a ream bit. The drill rod is characterized by consisting of a drill rod end head, a drill rod, a bit, the ream bit and a flexible inner pipe, wherein the drill rod end head is connected with the drill rod, the ream bit is provided with at least two blade sets which are uniformly distributed on the circumference of the bit, each blade set consists of two blades, the two blades are connected by a bolt, the other end of the drill rod is connected with one end blade of the ream bit through the bolts, the other end blade of the ream bit is connected with the bit through the bolts, and the flexible inner pipe is arranged between the bit and the drill rod. The drill rod with the ream bit, disclosed by the invention, can be widely applied to various clayed soil and sandy soil, and very ideally solves problems of hole collapse of a sand layer, small pulling resistance and large displacement; and the reliability of the drill rod is remarkably better than that of a common anchor rod.
Description
Technical field
The present invention relates to engineering machinery, specifically a kind of drilling rod with enlarging drill bit.
Background technology
Jackrod structure in the existing anchorage cable engineering construction is a straight-bar, and the induration that the stressed dependence steel strand of anchor cable and cement paste form and the frictional resistance of the soil body require the length of stressed size and anchor cable proportional; But under the impacts such as national relevant policies, construction environment and safety requirements, it is long that anchor cable can't design, stressed like this can't meeting design requirement; Generally design will increase anchor cable quantity or change support form to be processed, but in any case, all will greatly increase cost.
Summary of the invention
The purpose of this invention is to provide a kind of drilling rod with enlarging drill bit, it adopts the method for anchor cable end expanding, can greatly increase anchor cable soil body resistance, and reduces cost, reduces the impact of anchor cable construction surrounding environment.
Technical scheme of the present invention is: the anchor pole that band enlarges drill bit is made of drilling rod termination, drilling rod, drill bit, expansion drill bit, scalable inner tube; Drilling rod termination jointed rod, the blade that enlarges drill bit is made of at least two groups, be evenly distributed on the circumference of drill bit, every group of blade forms and connects with bolt by two, the drilling rod other end connects an end blade that enlarges drill bit with bolt, other end blade is connected with drill bit with bolt, is provided with scalable inner tube between drill bit and drilling rod.
During anchor bolt construction, be drilled into designing requirement with common drilling rod first and enlarge the part original position, then common drilling rod is changed into the anchor pole that band of the present invention enlarges drill bit, when creeping into, the pressure by drill bit and the soil body passes to scalable inner tube, scalable inner tube is shunk, enlarge that drill bit is crooked to be enlarged, because the effect of drilling pressure, use to enlarge drill bit cutting soil and enlarge the aperture in the process of creeping into, until get into projected depth, last high-pressure slip-casting forms and enlarges the drill bit anchor pole.
The drilling rod that band of the present invention enlarges drill bit can be widely used in various cohesive soils and sand, and ideal the collapse hole, uplift resistance of layer of sand that solved is little, the problem that displacement is large, and the reliability ratio common bolt significantly improves.
Description of drawings
Fig. 1 is the jackrod structure schematic diagram (not expanded state) that band of the present invention enlarges drill bit.
Fig. 2 is the 1-1 sectional view among Fig. 1
Fig. 3 is the jackrod structure schematic diagram (expanded state) that band of the present invention enlarges drill bit.
Among the figure: 1-drilling rod termination, the 2-drilling rod, the 3-bolt, the scalable inner tube of 4-, 5-enlarges drill bit, the 6-drill bit, 7-enlarges the blade of drill bit.
The specific embodiment
As Figure 1-3, the drilling rod of band expansion drill bit of the present invention is made of drilling rod termination 1, drilling rod 2, drill bit 6, expansion drill bit 5, scalable inner tube 4; Drilling rod termination 1 jointed rod 2, expansion drill bit 5 is made of three groups blade, and be evenly distributed on the circumference of drill bit (as shown in Figure 2), every group of blade forms by two and connects with bolt 3, the other end of drilling rod 2 connects an end blade that enlarges drill bit with bolt 3, other end blade is connected with drill bit 6 with bolt 3, and 2 on drill bit 6 and drilling rod are provided with scalable inner tube 4.
During anchor cable construction, be drilled into designing requirement with common drilling rod first and enlarge the part original position, then common drilling rod is changed into the anchor pole that band of the present invention enlarges drill bit, when creeping into, the pressure by drill bit and the soil body passes to scalable inner tube, scalable inner tube is shunk, enlarge that drill bit is crooked to be enlarged, because the effect of drilling pressure, use to enlarge drill bit cutting soil and enlarge the aperture in the process of creeping into, until get into projected depth, last high-pressure slip-casting forms and enlarges the drill bit anchor pole.
Claims (2)
1. the drilling rod with the expansion drill bit is characterized in that being made of drilling rod termination, drilling rod, drill bit, expansion drill bit, scalable inner tube with the anchor pole that enlarges drill bit; Drilling rod termination jointed rod, the blade that enlarges drill bit is made of at least two groups, be evenly distributed on the circumference of drill bit, every group of blade forms and connects with bolt by two, the drilling rod other end connects an end blade that enlarges drill bit with bolt, other end blade is connected with drill bit with bolt, is provided with scalable inner tube between drill bit and drilling rod.
2. band according to claim 1 enlarges the drilling rod of drill bit, it is characterized in that the blade of described expansion drill bit consists of by three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105000507A CN102953684A (en) | 2012-11-30 | 2012-11-30 | Drill rod with ream bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105000507A CN102953684A (en) | 2012-11-30 | 2012-11-30 | Drill rod with ream bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102953684A true CN102953684A (en) | 2013-03-06 |
Family
ID=47763014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105000507A Pending CN102953684A (en) | 2012-11-30 | 2012-11-30 | Drill rod with ream bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953684A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603602A (en) * | 2013-10-29 | 2014-02-26 | 河南理工大学 | Variable diameter drill by varying pushing force |
| CN107630703A (en) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | Band blade telescopic tube curtain jacking drill bit |
| CN111425145A (en) * | 2020-03-23 | 2020-07-17 | 中国五冶集团有限公司 | Drill bit device for pipe curtain construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458344Y (en) * | 2001-01-18 | 2001-11-07 | 北京市机械施工公司 | Positive and negative circulation wet-working mechanical type dual-purpose drilling device for drilling hole and reaming |
| US20040108143A1 (en) * | 2001-02-08 | 2004-06-10 | England Melvin Gerrard | Pile reamer with spoil container |
| CN2876307Y (en) * | 2005-09-30 | 2007-03-07 | 郑州煤炭工业（集团）有限责任公司告成煤矿 | Sliding length adjustable stepless reducing coal layer drill |
| CN201705208U (en) * | 2010-06-11 | 2011-01-12 | 谢学军 | Expansive bit |
| CN202926216U (en) * | 2012-11-30 | 2013-05-08 | 中铁建工集团有限公司 | Drill pipe with enlarging drill bit |
-
2012
- 2012-11-30 CN CN2012105000507A patent/CN102953684A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2458344Y (en) * | 2001-01-18 | 2001-11-07 | 北京市机械施工公司 | Positive and negative circulation wet-working mechanical type dual-purpose drilling device for drilling hole and reaming |
| US20040108143A1 (en) * | 2001-02-08 | 2004-06-10 | England Melvin Gerrard | Pile reamer with spoil container |
| CN2876307Y (en) * | 2005-09-30 | 2007-03-07 | 郑州煤炭工业（集团）有限责任公司告成煤矿 | Sliding length adjustable stepless reducing coal layer drill |
| CN201705208U (en) * | 2010-06-11 | 2011-01-12 | 谢学军 | Expansive bit |
| CN202926216U (en) * | 2012-11-30 | 2013-05-08 | 中铁建工集团有限公司 | Drill pipe with enlarging drill bit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603602A (en) * | 2013-10-29 | 2014-02-26 | 河南理工大学 | Variable diameter drill by varying pushing force |
| CN103603602B (en) * | 2013-10-29 | 2016-08-17 | 河南理工大学 | Change propulsive variable diameter drill |
| CN107630703A (en) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | Band blade telescopic tube curtain jacking drill bit |
| CN111425145A (en) * | 2020-03-23 | 2020-07-17 | 中国五冶集团有限公司 | Drill bit device for pipe curtain construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |