CN206811149U - A kind of heavy wall boring cutter for borehole frock - Google Patents
A kind of heavy wall boring cutter for borehole frock Download PDFInfo
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- CN206811149U CN206811149U CN201720620566.3U CN201720620566U CN206811149U CN 206811149 U CN206811149 U CN 206811149U CN 201720620566 U CN201720620566 U CN 201720620566U CN 206811149 U CN206811149 U CN 206811149U
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- boring cutter
- boring
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Abstract
The utility model discloses a kind of heavy wall boring cutter for borehole frock, including boring bar and the bore hole the first boring cutter and the second boring cutter that are arranged on boring bar end, the first described boring cutter is arranged on the end of boring bar taper end, offer 14*14mm square hole on boring bar at 40 50mm with the first boring cutter, square hole side is provided with screw, bolt is provided with screw, the second described boring cutter is bolted in square hole, and first boring cutter and the second boring cutter are backwards to setting.The utility model butt end simple in construction on the basis of existing boring bar, the backwards new boring cutter of upper increase, so as to after former boring cutter turning enters pipe, new boring cutter is started working, now, double-pole turning simultaneously, former boring cutter carries out continuation perforate, and new boring cutter then increases foramen primum footpath, can improve boring work efficiency more than 50%；Boring twice can be completed by filling a boring cutter, it is not necessary to install reaming boring cutter at twice；New boring cutter and former boring cutter can balance thrust suffered by boring bar root backwards to relative.
Description
Technical field
It the utility model is related to a kind of boring cutter, more particularly to a kind of heavy wall boring cutter for borehole frock.
Background technology
In the machining processes of power station pipeline, bore hole is one of important step.During normal bore hole, it is necessary in boring
Boring cutter is installed on bar, and turning is carried out successively from top to bottom by certain angle.But when pipeline wall thickness is thicker（More than 50mm）
When, it is necessary to which the base metals of turning are more, it is therefore desirable to the time of cost is longer, is additionally, since the increase of wall thickness, boring bar root
Also can be by larger thrust；In addition, as the increase of working depth is, it is necessary to the length of boring bar also increases, existing pipe
The aperture of road root can be less than the aperture on top, but because the rigidity of boring bar is limited, for the increase of wall thickness, existing boring cutter frock
Still can damage during bore hole, efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of heavy wall boring cutter for borehole frock, can be according to the same of raising bore hole efficiency
When, balance thrust suffered by boring bar.
The utility model uses following technical proposals：
A kind of heavy wall boring cutter for borehole frock, including boring bar and the bore hole of boring bar end is arranged on the first boring cutter and second
Boring cutter, the first described boring cutter are arranged on the end of boring bar taper end, offered on boring bar with the first boring cutter at 40-50mm
14*14mm square hole, square hole side are provided with screw, and bolt is provided with screw, and the second described boring cutter is bolted
In square hole, first boring cutter and the second boring cutter are backwards to setting.
Described bolt is M12.
The utility model butt end simple in construction on the basis of existing boring bar, the backwards new boring cutter of upper increase, so as in original
After boring cutter turning enters pipe, new boring cutter is started working, and now, double-pole turning simultaneously, former boring cutter carries out continuation perforate, new boring cutter
Then increase foramen primum footpath, boring work efficiency more than 50% can be improved；Boring twice can be completed by filling a boring cutter, it is not necessary to be divided to two
Secondary installation reaming boring cutter；New boring cutter and former boring cutter can balance thrust suffered by boring bar root backwards to relative.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is side view of the present utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of heavy wall boring cutter for borehole frock, including boring bar and the bore hole for being arranged on boring bar end
With the first boring cutter 5 and the second boring cutter（Not shown in figure）, the first described boring cutter 5 is arranged on the end 1 of the taper end of boring bar 2, boring bar 2
The upper square hole 3 for offering 14*14mm at 40-50mm with the first boring cutter 5, square hole side is provided with screw 6, set in screw 6
Bolt is equipped with, the second described boring cutter is bolted in square hole 3, and the boring cutter of the first boring cutter 5 and second is backwards to setting.
Described bolt is M12.The utility model includes the length according to boring bar 2, and 14*14mm side is opened at away from former boring cutter 40-50mm
Hole 3, square hole 3 match with boring cutter；In the tapping of tapping side and M12 bolts are screwed into, the reinforcement measure as boring cutter；Boring bar 2
Butt end end also begun to square hole 4, be equally used for fixing the second boring cutter.Tapping set boring cutter, make new boring cutter end away from
The distance of boring bar, slightly larger than the distance of former boring cutter to boring bar, new boring cutter is with former boring cutter backwards to relative；M12 bolts are tightened, will be new
Boring cutter fixation；Boring bar equipped with new and old boring cutter is installed to boring machine, and come into operation.After former boring cutter turning enters pipe,
New boring cutter is started working, and now, double-pole turning simultaneously, former boring cutter carries out continuation perforate, and new boring cutter then increases foramen primum footpath, can improve
Boring work efficiency more than 50%；Boring cutter of installation can complete Boring twice, it is not necessary to install reaming boring cutter at twice；Newly
Boring cutter and former boring cutter can balance thrust suffered by boring bar root backwards to relative.
Claims (2)
- A kind of 1. heavy wall boring cutter for borehole frock, it is characterised in that：Including boring bar and the bore hole of boring bar end is arranged on first Boring cutter and the second boring cutter, the first described boring cutter are arranged on the end of boring bar taper end, with the first boring cutter at a distance of 40-50mm on boring bar Place offers 14*14mm square hole, and square hole side is provided with screw, and bolt is provided with screw, and the second described boring cutter passes through It is bolted in square hole, first boring cutter and the second boring cutter are backwards to setting.
- 2. heavy wall boring cutter for borehole frock according to claim 1, it is characterised in that：Described bolt is M12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620566.3U CN206811149U (en) | 2017-05-31 | 2017-05-31 | A kind of heavy wall boring cutter for borehole frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620566.3U CN206811149U (en) | 2017-05-31 | 2017-05-31 | A kind of heavy wall boring cutter for borehole frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206811149U true CN206811149U (en) | 2017-12-29 |
Family
ID=60758222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720620566.3U Active CN206811149U (en) | 2017-05-31 | 2017-05-31 | A kind of heavy wall boring cutter for borehole frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206811149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441910A (en) * | 2021-06-17 | 2021-09-28 | 大冶特殊钢有限公司 | Ultra-thick-wall quality-adjusting pipe and preparation method thereof |
-
2017
- 2017-05-31 CN CN201720620566.3U patent/CN206811149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441910A (en) * | 2021-06-17 | 2021-09-28 | 大冶特殊钢有限公司 | Ultra-thick-wall quality-adjusting pipe and preparation method thereof |
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