CN108104721B - Blasthole reamer - Google Patents
Blasthole reamer Download PDFInfo
- Publication number
- CN108104721B CN108104721B CN201711261160.1A CN201711261160A CN108104721B CN 108104721 B CN108104721 B CN 108104721B CN 201711261160 A CN201711261160 A CN 201711261160A CN 108104721 B CN108104721 B CN 108104721B
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cross
- jack
- wedge
- shaped
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003466 welding Methods 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a blasthole reamer, which comprises an outer pipe (4), wherein one end of the outer pipe (4) is fixedly connected with a drilling machine, and the other end of the outer pipe is fixedly connected with a cross drill bit (2); two symmetrical rectangular through grooves are formed in the pipe diameter of the connecting end of the outer pipe (4) and the cross-shaped drill bit (2); a jack (1) is fixed in the outer pipe (4), the lifting end of the jack (1) points to the cross drill bit (2), a connecting rod (7) is fixed on the lifting end of the jack (1), two ends of the connecting rod (7) are respectively positioned in two symmetrical rectangular through grooves, wedge-shaped blocks (6) are hinged on two ends of the connecting rod (7), a down-the-hole drill bit (5) is fixed on the wedge-shaped blocks (6), and the positions of the wedge-shaped blocks (6) and the down-the-hole Kong Qiantou) correspond to the grooves (8) of the cross drill bit (2); the technical problems that drilling equipment in the prior art cannot ream a specific drilling position and the like are solved.
Description
Technical Field
The invention belongs to a borehole drilling technology in a coal mine, and particularly relates to a borehole reamer.
Background
With the development of geotechnical engineering, more and more engineering needs to be used for drilling holes to blast or to extract dangerous and harmful gases in a geotechnical body. However, in engineering practice, it is necessary to enlarge the hole diameter at a certain drilling position, and conventional drilling equipment cannot achieve this function, so that the reaming operation at a specific position of the drilled hole cannot be performed.
The invention comprises the following steps:
The invention aims to solve the technical problems: the utility model provides a borehole reamer to solve prior art's drilling equipment can not carry out technical problem such as reaming to drilling specific position.
The technical scheme of the invention is as follows:
A blasthole reamer comprising an outer tube; one end of the outer tube is fixedly connected with the drilling machine, and the other end of the outer tube is fixedly connected with the cross-shaped drill bit; two symmetrical rectangular through grooves are formed in the pipe diameter of the connecting end of the outer pipe and the cross-shaped drill bit; the lifting end of the jack points to the cross drill bit, the lifting end of the jack is fixedly provided with a connecting rod, two ends of the connecting rod are respectively positioned in two symmetrical rectangular through grooves, wedge-shaped blocks are fixedly arranged at two ends of the connecting rod, a down-the-hole drill bit is fixedly arranged on the wedge-shaped blocks, and the positions of the wedge-shaped blocks and the down-the-hole drill bit correspond to the grooves of the cross drill bit.
The handle of the jack extends out of the outer tube.
The outer tube cross drill bit is connected with the drilling machine through threads.
The invention has the beneficial effects that:
One end of an outer tube of the reamer is fixedly connected with a drilling machine, and the other end of the outer tube is fixedly connected with a cross-shaped drill bit; the lifting end of the jack starts to extend through the handle of the jack, the connecting rod of the lifting end is driven to move in the two rectangular through grooves of the outer tube, and the wedge block and the down-the-hole drill bit are inserted into the groove of the cross drill bit to expand and ream; the invention has simple structure and easy use; the technical problems that drilling equipment in the prior art cannot ream a specific drilling position and the like are solved.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the cross-shaped bit of the present invention.
The specific embodiment is as follows:
The blasthole reamer comprises an outer tube 4, wherein one end of the outer tube 4 is fixedly connected with a drilling machine, and the other end of the outer tube is fixedly connected with a cross drill bit 2; two symmetrical rectangular through grooves are formed in the pipe diameter of the connecting end of the outer pipe 4 and the cross-shaped drill bit 2; the outer tube 4 is internally fixed with a jack 1, the lifting end of the jack 1 points to the cross drill bit 2, the lifting end of the jack 1 is fixedly provided with a connecting rod 7, two ends of the connecting rod 7 are respectively positioned in two symmetrical rectangular through grooves, two ends of the connecting rod 7 are hinged with wedge blocks 6, the wedge blocks 6 are fixedly provided with down-the-hole drill bits 5, and the positions of the wedge blocks 6 and the down-the-hole drill bits 5 correspond to the grooves 8 of the cross drill bit 2.
A jack 1 is fixed in the outer tube 4; fixing by welding; specifically, a bottom plate is welded on the pipe wall of the outer pipe 4, and the base of the jack 1 is welded on the bottom plate.
The handle of the jack 1 extends out of the outer tube 1.
The outer tube 1 is connected with the cross drill bit 2 and the drilling machine through threads.
When in reaming, the cross drill bit 2 is extended to a reaming position through a drilling machine, and the wedge-shaped block 6 and the down-the-hole drill bit 5 are moved forward by operating the handle of the jack 1, and as the two ends of the connecting rod 7 of the wedge-shaped block 6 are hinged; when the wedge-shaped block 6 and the down-the-hole drill bit 5 move forward to contact with the groove 8, the wedge-shaped block 6 can be lifted upwards and inserted into the groove 8 of the cross-shaped drill bit 2 to expand and ream; after reaming is finished, the handle of the jack 1 is operated, and the lifting end of the jack 1 is retracted, so that the wedge-shaped block 6 and the down-the-hole drill bit 5 are moved backwards; a groove 8 separated from the cross-shaped drill bit 2; continuing to drill holes.
Claims (1)
1. A blasthole reamer comprising an outer tube (4), characterized in that: one end of the outer tube (4) is fixedly connected with the drilling machine, and the other end is fixedly connected with the cross-shaped drill bit (2); two symmetrical rectangular through grooves are formed in the pipe diameter of the connecting end of the outer pipe (4) and the cross-shaped drill bit (2); a jack (1) is fixed in the outer pipe (4), the lifting end of the jack (1) points to the cross drill bit (2), a connecting rod (7) is fixed on the lifting end of the jack (1), two ends of the connecting rod (7) are respectively positioned in two symmetrical rectangular through grooves, wedge-shaped blocks (6) are hinged on two ends of the connecting rod (7), a down-the-hole drill bit (5) is fixed on the wedge-shaped blocks (6), and the positions of the wedge-shaped blocks (6) and the down-the-hole drill bit (5) correspond to the grooves (8) of the cross drill bit (2); when in reaming, the cross drill bit (2) is extended to a reaming position through a drilling machine, and the wedge block (6) and the down-the-hole drill bit (5) are moved forwards by operating the handle of the jack (1), and the two ends of the wedge block (6) and the connecting rod (7) are hinged; when the wedge-shaped block (6) and the down-the-hole drill bit (5) move forwards to be in contact with the groove (8), the wedge-shaped block (6) is lifted up and inserted into the groove (8) of the cross-shaped drill bit (2) to expand and ream; after reaming is finished, operating a handle of the jack (1), and retracting the lifting end of the jack (1) to enable the wedge block (6) and the down-the-hole drill bit (5) to move backwards; a groove (8) separated from the cross-shaped drill bit (2); continuing drilling; the handle of the jack (1) extends out of the outer tube (4); the outer tube (4) is connected with the cross-shaped drill bit (2) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261160.1A CN108104721B (en) | 2017-12-04 | 2017-12-04 | Blasthole reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261160.1A CN108104721B (en) | 2017-12-04 | 2017-12-04 | Blasthole reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108104721A CN108104721A (en) | 2018-06-01 |
| CN108104721B true CN108104721B (en) | 2024-05-10 |
Family
ID=62208126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711261160.1A Active CN108104721B (en) | 2017-12-04 | 2017-12-04 | Blasthole reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104721B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326964A (en) * | 1995-06-02 | 1996-12-10 | Nippon Steel Corp | Underground lead-in construction method for pipe |
| CN201963202U (en) * | 2011-02-24 | 2011-09-07 | 平顶山五环实业有限公司 | Strong push subsidiary type reamer bit |
| CN203701978U (en) * | 2013-12-26 | 2014-07-09 | 北京市三一重机有限公司 | Diameter-variable underreaming drill and drilling machine |
| CN206144466U (en) * | 2016-11-02 | 2017-05-03 | 中国电建集团成都勘测设计研究院有限公司 | Reamer |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| CN107035402A (en) * | 2017-06-05 | 2017-08-11 | 贵州大学 | A kind of heating cable heats coal seam to increase the system and method for gas permeability of coal seam |
| CN207776795U (en) * | 2017-12-04 | 2018-08-28 | 贵州大学 | A kind of chambering device structure |
-
2017
- 2017-12-04 CN CN201711261160.1A patent/CN108104721B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326964A (en) * | 1995-06-02 | 1996-12-10 | Nippon Steel Corp | Underground lead-in construction method for pipe |
| CN201963202U (en) * | 2011-02-24 | 2011-09-07 | 平顶山五环实业有限公司 | Strong push subsidiary type reamer bit |
| CN203701978U (en) * | 2013-12-26 | 2014-07-09 | 北京市三一重机有限公司 | Diameter-variable underreaming drill and drilling machine |
| CN206144466U (en) * | 2016-11-02 | 2017-05-03 | 中国电建集团成都勘测设计研究院有限公司 | Reamer |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| WO2018218900A1 (en) * | 2017-05-27 | 2018-12-06 | 河南理工大学 | Anchor-bolt hole interior reamer used for mining |
| CN107035402A (en) * | 2017-06-05 | 2017-08-11 | 贵州大学 | A kind of heating cable heats coal seam to increase the system and method for gas permeability of coal seam |
| CN207776795U (en) * | 2017-12-04 | 2018-08-28 | 贵州大学 | A kind of chambering device structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108104721A (en) | 2018-06-01 |
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| 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 |