CN203685040U - Recessed multi-wing coreless drill - Google Patents
Recessed multi-wing coreless drill Download PDFInfo
- Publication number
- CN203685040U CN203685040U CN201320852726.9U CN201320852726U CN203685040U CN 203685040 U CN203685040 U CN 203685040U CN 201320852726 U CN201320852726 U CN 201320852726U CN 203685040 U CN203685040 U CN 203685040U
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- CN
- China
- Prior art keywords
- column
- wing
- drill body
- hole
- drill
- 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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Abstract
The utility model discloses a recessed multi-wing coreless drill which comprises a drill body, wing heads, diamond compacts, a column and water inlet holes. The wing heads are evenly arranged at the upper end of the drill body, the diamond compacts are fixedly arranged on the wing heads, water inlet holes are symmetrically formed in the middle of the drill body, a threaded through hole is further formed in the middle of the drill body, the water inlet holes and the threaded through hole are formed at intervals, threads are arranged on the lower portion of the column, and the column is screwed in the threaded through hole. If the column is damaged in a use process, the column can be replaced conveniently, and the drill has the advantages of being simple to machine and assemble, convenient to maintain, long in whole service life and the like.
Description
Technical field
The utility model belongs to mining indent multiple wing Noncoring drill bit technical field.
Background technology
Indent multiple-fin Noncoring drill bit is widely used in colliery, geology oil exploration, quarrying and construction of tunnel and drills, using more is indent three wings, four aerofoil profile Noncoring drill bits, and it is mainly made up of drill body, wing head, diamond compact, column, inlet opening etc.In processing and manufacturing process, in the time of vertical columns, first in drill body, beat blind hole, in blind hole, insert column, then by column and the welding of blind hole edge.Noncoring drill bit in use, because geological conditions is poor, often causes column to come off, and causes the damage of indent multiple-fin Noncoring drill bit to be scrapped; In addition, column adds complex process in man-hour in installation, the expense that wastes time and energy material, and manufacturing cost is higher.
Summary of the invention
The purpose of this utility model is to provide the indent multiple wing Noncoring drill bit that a kind of process and assemble is simple, be convenient to maintenance, long service life.
To achieve these goals, the utility model comprises: drill body, wing head, diamond compact, column, inlet opening, drill body upper end is evenly provided with wing head, on wing head, be fixedly installed diamond compact, drill body inside middle symmetry has inlet opening, also has tapped through hole in drill body inside middle, and inlet opening and tapped through hole interval arrange, column bottom is provided with silking, and column is screwed in tapped through hole.
In processing and manufacturing process like this, in the time of vertical columns, first in drill body, beat tapped through hole, then the column that is provided with silking is screwed in tapped through hole, technique assembling is simple, has saved the process and assemble time, simultaneously the drill body smooth surface after process and assemble; If use procedure central post is damaged, can also change easily, have process and assemble simple, be convenient to the features such as maintenance, whole service life be long.
accompanying drawing explanation:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is the top view of the utility model cross-sectional view.
the specific embodiment:
As seen from Figure 1, Figure 2, the utility model comprises: drill body 1, wing head 3, diamond compact 4, column 5, inlet opening 6.Drill body 1 upper end is evenly provided with three wing heads 3, is fixedly installed diamond compact 4 on wing head, relies on diamond compact to carry out Cutting Rock while creeping into.Drill body 1 inside middle symmetry has inlet opening 6, in drilling process, injects flowing water by inlet opening, and one side is carried out cooling to wing head, washes away on the other hand to flow out and bores the rock dust of falling.Also have tapped through hole 2 in drill body 1 inside middle, inlet opening 6 arranges with tapped through hole 2 intervals, column 5 bottoms are provided with silking, column silking and tapped through hole adapt, column 5 is screwed in tapped through hole 2, fixing reliable in order to guarantee column, can utilize electric welding that column lower end and drill body are carried out to spot welding.Wing head quantity of the present utility model and the large I of specification are made series of products as required.
Claims (1)
1. an indent multiple wing Noncoring drill bit, comprise: drill body (1), wing head (3), diamond compact (4), column (5), inlet opening (6), drill body (1) upper end is evenly provided with wing head (3), on wing head, be fixedly installed diamond compact (4), drill body (1) inside middle symmetry has inlet opening (6), it is characterized in that also having tapped through hole (2) in drill body inside middle, inlet opening (6) arranges with tapped through hole (2) interval, column (5) bottom is provided with silking, column (5) is screwed in tapped through hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852726.9U CN203685040U (en) | 2013-12-23 | 2013-12-23 | Recessed multi-wing coreless drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852726.9U CN203685040U (en) | 2013-12-23 | 2013-12-23 | Recessed multi-wing coreless drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685040U true CN203685040U (en) | 2014-07-02 |
Family
ID=51006959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320852726.9U Expired - Fee Related CN203685040U (en) | 2013-12-23 | 2013-12-23 | Recessed multi-wing coreless drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685040U (en) |
-
2013
- 2013-12-23 CN CN201320852726.9U patent/CN203685040U/en not_active Expired - Fee Related
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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: 20140702 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |