CN2555123Y - Four-cutter edge hollow bit - Google Patents
Four-cutter edge hollow bit Download PDFInfo
- Publication number
- CN2555123Y CN2555123Y CN 02278798 CN02278798U CN2555123Y CN 2555123 Y CN2555123 Y CN 2555123Y CN 02278798 CN02278798 CN 02278798 CN 02278798 U CN02278798 U CN 02278798U CN 2555123 Y CN2555123 Y CN 2555123Y
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- CN
- China
- Prior art keywords
- bit
- sword
- drilling
- utility
- model
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- 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 four-cutter edge hollow bit for steel rail drilling, and can effectively solve the problems of chip removal and fast drilling during the drilling; the utility model consists of a drill bit and a drill handle. The circumference of the hollow bit is evenly provided with four blades in a spiral angle of 20 DEG, and each blade consists of a blade belt, a blade face and a front bit in a spiral angle of 20 DEG. Two adjacent faces of the drill handle are provided with nail arrest slots, and the center is provided with a drill handle hole. Chip removal slots are arranged among the blades, and the four cutting edges are not at the same circumference. The utility model has novel and unique structure, fast speed of drilling, excellent quality, smooth chip removal and long service life, thus the popularization and the application of the utility model can create new prospect for steel rail drilling.
Description
(1) technical field
The utility model relates to a kind of four sword hollow boring bits that are used for the drilling of the rail.
(2) background technology
The drilling of the rail is necessary.And the solid spiral bit of the many employings of the drilling of the rail at present, its drilling efficiency is low, and consumed power is big, and drilling quality is poor.Not only affect the drilling of the rail, but also limited the technological progress of relevant drilling of the rail machinery.
(3) the utility model content
At above-mentioned situation, the purpose of the utility model just provides a kind of four novel sword hollow boring bits, reduces power consumption to solve, and improves drilling efficiency, improves the problem of drilling quality, and rail bonding drill is supporting efficiently for development of new.It is technical to be the open circles bit body that adopts the band handle, evenly be 20 degree helical angles at its circumference and be distributed with four sword bodies, there is drill bit each sword body front portion, and land, sword face are arranged on the outer wall, between the sword body flute is arranged, its novel structure, uniqueness, penetration rate is fast, and quality is good, chip removal is smooth, long service life, it is applied and must open up the bright prospect that makes new advances for the drilling of the rail, uses for Rail Production and makes creationary contribution.
(4) description of drawings
Fig. 1 is a stereogram of the present utility model.
Fig. 2 is a structure semi-section front view of the present utility model.
Fig. 3 is the bit head upward view.
Fig. 4 is that the sword handle A-A of place is to cross sectional view.
(5) specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
Provide by Fig. 1, the utility model is to be made of bit body and drillstock, drillstock is at the bit body rear portion, bit body is the open circles bit body, the circumference of open circles bit body evenly is 20 degree helical angles and is distributed with four sword bodies, and every sword body is made of the land 4, sword face 3 and the anterior drill bit 6 that are 20 degree helical angles, and 1 liang of adjacent surface of drillstock has non-magnetic shim groove 2, there is drillstock endoporus 7 (seeing Fig. 3, shown in Figure 4) at the center, and flute 5 is arranged between the sword body; The anterior cutting edge both sides of drill bit 6 are 20 degree angles, inclined-plane, front end axially is 6 degree angles, the back bevel level is 10 degree angles, land 4 wide 1.5mm are the iron core bit freezing under preventing to bore, and anterior bore should be less than lining portion internal diameter, can be oral area interior diameter 8 and be φ 20mm, in portion's diameter 9 be φ 21mm, the bit body overall diameter is φ 31mm, the diameter of bore 7 of drillstock 1 is φ 8mm, drill bit 6 is four, be evenly distributed on the leading section of open circles bit body, the cutting edge of each drill bit not on same circumference, adjacent two, one 1/4 of Nei Guchu, one 1/4 at the outer arc place, two each 1/4 places of staggering mutually in the centre in addition, four cutting edge faces are the round wall thickness of open circles bit body altogether.Drillstock endoporus 7 is used to penetrate supporting thimble and water flowing, guarantees that drill bit can effectively be cooled off in using.
The utility model is just as a milling cutter, and different is that the utility model is along the axis direction feeding, and milling cutter to be used to the face that scabbles be along the direction feeding vertical with tool axis, each cutter head of the present utility model is just as a little lathe tool.Compare with billmpse tool, though rake face, back knife face, cutting edge and point of a knife are arranged equally, the feeding of billmpse tool is along the axis of workpiece direction, the branch that therefore main cutting edge, front cutting edge and main back knife face and minor flank are arranged, and hollow boring bit when work, itself is around the axis rotation, and feeding is along axis direction, smear metal is flowed out along flute, the annular end in work constantly forms new finished surface, and saturating up to boring, drilling efficiency and quality all are much improved, its application must be welcome.
Claims (3)
1, a kind of four sword hollow boring bits, be to constitute by bit body and drillstock, it is characterized in that bit body is the open circles bit body, the circumference of open circles bit body evenly is 20 degree helical angles and is distributed with four sword bodies, every sword body is made of the land (4), sword face (3) and the anterior drill bit (6) that are 20 degree helical angles, and drillstock (1) two adjacent surface has non-magnetic shim groove (2), and there is drillstock endoporus (7) at the center, flute (5) is arranged between the sword body
2, four sword hollow boring bits according to claim 1 is characterized in that the anterior cutting edge both sides of said drill bit (6) are 20 degree angles, inclined-plane, and front end axially is 6 degree angles, and the back bevel level is 10 degree angles.
3, the empty cutting drill head of four swords according to claim 1, it is characterized in that said drill bit (6) is four, be evenly distributed on the leading section of open circles bit body, the cutting edge of each drill bit is not on same circumference, adjacent two, one 1/4 at the inner arc place, one 1/4 at the outer arc place, two 1/4 places of staggering in the centre in addition, four cutting edge faces close the round wall thickness into the open circles bit body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278798 CN2555123Y (en) | 2002-08-13 | 2002-08-13 | Four-cutter edge hollow bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278798 CN2555123Y (en) | 2002-08-13 | 2002-08-13 | Four-cutter edge hollow bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2555123Y true CN2555123Y (en) | 2003-06-11 |
Family
ID=33742019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278798 Expired - Fee Related CN2555123Y (en) | 2002-08-13 | 2002-08-13 | Four-cutter edge hollow bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2555123Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390092A (en) * | 2011-08-05 | 2012-03-28 | 山东日能超硬材料有限公司 | Thin-wall drill |
| CN103185674A (en) * | 2011-12-27 | 2013-07-03 | 山西天宝风电法兰有限公司 | Hollow drill bit for sampling |
| CN104475826A (en) * | 2014-11-20 | 2015-04-01 | 北京航空航天大学 | Diamond sleeve grinding cutter suitable for drill sleeve guide |
| CN105195795A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Double-side drill bit |
| CN107355183A (en) * | 2017-07-25 | 2017-11-17 | 中国铁路设计集团有限公司 | The geological drilling hollow boring bit suitably used in earth's surface broken ground |
| CN110682449A (en) * | 2019-09-27 | 2020-01-14 | 合肥明皓玻璃装饰有限公司 | Drilling device for vertical glass drilling machine |
-
2002
- 2002-08-13 CN CN 02278798 patent/CN2555123Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390092A (en) * | 2011-08-05 | 2012-03-28 | 山东日能超硬材料有限公司 | Thin-wall drill |
| CN103185674A (en) * | 2011-12-27 | 2013-07-03 | 山西天宝风电法兰有限公司 | Hollow drill bit for sampling |
| CN104475826A (en) * | 2014-11-20 | 2015-04-01 | 北京航空航天大学 | Diamond sleeve grinding cutter suitable for drill sleeve guide |
| CN104475826B (en) * | 2014-11-20 | 2017-02-22 | 北京航空航天大学 | Diamond sleeve grinding cutter suitable for drill sleeve guide |
| CN105195795A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Double-side drill bit |
| CN107355183A (en) * | 2017-07-25 | 2017-11-17 | 中国铁路设计集团有限公司 | The geological drilling hollow boring bit suitably used in earth's surface broken ground |
| CN110682449A (en) * | 2019-09-27 | 2020-01-14 | 合肥明皓玻璃装饰有限公司 | Drilling device for vertical glass drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |