CN203808831U - Scraper reamer - Google Patents
Scraper reamer Download PDFInfo
- Publication number
- CN203808831U CN203808831U CN201420245737.5U CN201420245737U CN203808831U CN 203808831 U CN203808831 U CN 203808831U CN 201420245737 U CN201420245737 U CN 201420245737U CN 203808831 U CN203808831 U CN 203808831U
- Authority
- CN
- China
- Prior art keywords
- scraper
- reamer
- main body
- welded
- broad
- 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model discloses a scraper reamer. The scraper reamer is characterized by comprising a cylindrical body and a reaming tool. The cylindrical body is hollowed to form a passage, and the reaming tool is beloid and uniformly surrounds the body to form a cone by inset welding. The scraper reamer is connected with a drill bit and a drill rod through a thread and can reduce damages to the coal wall from drilling and reaming, drilling is formed at one step, and the scraper reamer is simple in structure, convenient to mount and maintain and safe to operate.
Description
Technical field
The utility model relates to boring mechanic and manufactures and designs field, relates in particular to a kind of scraper drill.
Background technology
In coal mine operation, usually relate to coal-bed gas extinction, visit the coal bed drilling construction such as discharge water; due to the impact that is subject to soft, the existing drill bit in coal seam on factors such as coal seam vibration limits are larger; at construction inclination angle larger large diameter borehole, often there will be in hole the rib phenomenon that collapses; cause boring to be scrapped, can not reach expection construction object and effect.
The major measure of taking is at present to reduce bore diameter to increase boring number and different-diameter drill bit gradation construction two schemes.The first scheme reduces bore diameter and increases boring number, has reduced rib exposed area, has reduced the possibility that collapses, but has greatly affected the efficiency of drilling construction, also exists perforation to threaten; First scheme adopts different-diameter drill bit gradation construction to reduce to a certain extent the destruction of drill bit to rib, but gradation construction is higher to drilling equipment stability requirement, has azimuth deviation risk, equally drilling construction efficiency is impacted.For this reason, need to improve.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of little to failure of rib, realizes the one-time formed scraper reamer of boring.
A scraper reamer, is characterized in that: comprise main body and broad, main body is cylinder, and hollow forms passage, and the beloid uniform ring of broad forms a cone body around main body by inlaying welding.
Described main body is uniform some grooves around, and body front end is external screw thread connector, can be connected with drill bit; End is internal thread connector, can be connected with drilling rod.
Described passage is positioned at main center, connects main body external screw thread connector and internal thread connector.
Described broad is comprised of the some alloy disks, alloy blade and the cutter body that are connected.
Described cutter body, beloid, circumferentially uniform inlaying is welded in body recess.
Described some alloy disks are closely inlayed and are welded on cutter body front bevel, for reaming smear metal; Alloy blade is inlayed and is welded on cutter body back bevel, for retreating smear metal.
The utility model beneficial effect is compared with prior art, reamer can be connected to form one by screw thread and drill bit, drilling rod, during the soft coal body boring of construction high inclination-angle, front end drill bit forms after slim hole, the tapered reamer in rear end expands step by step scopiform and becomes large diameter borehole, can reduce to bore and cut the destruction to rib, make the one-shot forming of holing, and simple in structure, mounting or dismounting and easy to maintenance, handling safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limited among described scope of embodiments.
Referring to Fig. 1, Fig. 2, a kind of scraper reamer, comprises main body 1 and broad 2, and main body 1 is cylinder, and hollow forms passage 13, and the beloid uniform ring of broad 2 forms a cone body around main body 1 by inlaying welding.Described main body 1 is uniform some grooves around, and main body 1 front end is external screw thread connector 11, and end is that internal thread connects 12; Described passage 13 is positioned at main body 1 center, connects main body external screw thread connector 11 and internal thread connector 12; Described broad 2 is comprised of the some alloy disks 21, alloy blade 22 and the cutter body 23 that are connected; Described cutter body 23, beloid, circumferentially uniform inlaying is welded in main body 1 groove; Described some alloy disks 21 are closely inlayed and are welded on cutter body 23 front bevels, and alloy blade 22 is inlayed and is welded on cutter body 23 back bevels.
Although described by reference to the accompanying drawings above embodiment of the present utility model, but those of ordinary skill in the art also can recognize making various variations or modification in the scope of claims, these modifications and variations are interpreted as within scope of the present utility model and intention.
Claims (2)
1. a scraper reamer, it is characterized in that: comprise main body (1) and broad (2), main body (1) is cylinder, uniform some grooves around, front end is external screw thread connector (11), end is that internal thread connects (12), inner hollow forms passage (13), connect external screw thread connector (11) and be connected (12) with internal thread, beloid evenly the inlaying of broad (2) is welded in the some grooves of main body (1), forms a cone body.
2. a kind of scraper reamer according to claim 1, it is characterized in that: described broad (2) is comprised of the some alloy disks (21) that are connected, alloy blade (22) and cutter body (23), some alloy disks (21) are closely inlayed and are welded on cutter body (23) front bevel, and alloy blade (22) is inlayed and is welded on cutter body (23) back bevel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245737.5U CN203808831U (en) | 2014-05-14 | 2014-05-14 | Scraper reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245737.5U CN203808831U (en) | 2014-05-14 | 2014-05-14 | Scraper reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808831U true CN203808831U (en) | 2014-09-03 |
Family
ID=51447604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245737.5U Expired - Fee Related CN203808831U (en) | 2014-05-14 | 2014-05-14 | Scraper reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775822A (en) * | 2015-04-17 | 2015-07-15 | 中煤特殊凿井有限责任公司 | Borehole-scraping-while-drilling device for freezing boreholes |
-
2014
- 2014-05-14 CN CN201420245737.5U patent/CN203808831U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775822A (en) * | 2015-04-17 | 2015-07-15 | 中煤特殊凿井有限责任公司 | Borehole-scraping-while-drilling device for freezing boreholes |
| CN104775822B (en) * | 2015-04-17 | 2017-01-18 | 中煤特殊凿井有限责任公司 | Borehole-scraping-while-drilling device for freezing boreholes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |