CN201068740Y - Conical helical rock drill head - Google Patents
Conical helical rock drill head Download PDFInfo
- Publication number
- CN201068740Y CN201068740Y CNU200720149495XU CN200720149495U CN201068740Y CN 201068740 Y CN201068740 Y CN 201068740Y CN U200720149495X U CNU200720149495X U CN U200720149495XU CN 200720149495 U CN200720149495 U CN 200720149495U CN 201068740 Y CN201068740 Y CN 201068740Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- hard alloy
- alloy blocks
- rock
- coniform
- 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 relates to a trochoid spiral rock drill bit, in particular to a drill bit which can chisel in and pile on the foundation of bedrock. The drill bit comprises a column main body, two coniform helical blades and hard alloy blocks. The two ends of the column main body are respectively provided with a conical tip and a connecting flange which are connected into a whole, and the column main body is mutually vertical to the connecting flange. The two coniform helical blades which are connected into a whole are symmetrically arranged on the column main body along the axes direction, and the taper of the two coniform helical blades is in the same direction with the taper of the conical tip. The hard alloy blocks with 1.5 to 2.5cm of space length are inlaid on the tip part and the bottom part of the conical tip, the conical surface, and the edge of the coniform helical blades evenly, and the hard alloy blocks on the conical tip and the conical surface are also spiral. The rock with rigidity being smaller than 35 MPa can be directly chiseled in. When the rock is cut, a point contact replaces a line or face contact, and the drill bit chisels in and embeds in the rock in the gradually chiseling-in and gradually expanding way.
Description
Technical field
The utility model relates to a kind of drill bit, is a kind of drill bit that can creep into piling on the ground of rock stratum specifically.
Background technology
At present, the drill bit on the rig is generally the flat drill head, and contact surface is big, can not rock drilling.And the cutter augers also is a plane contact, the cost height; State's external tooth shank type augers is the tooth button of mounting strap carbide alloy on the helical blade of drill body, though blade also is conical, but tooth button diameter is more than 3cm, mutual spacing is greater than 5cm, resistance is big, and the hardness HRC of hard alloy blocks is 45 only, and speed is slow, and hardness still can not be crept into greater than the rock of 35MPa.
The utility model content
The technical problems to be solved in the utility model provides a kind of hardness height, and cutting force is strong, the trochoid spiral rock drill bit that production efficiency is high.
The utility model trochoid spiral rock drill bit comprising cylinder body, be respectively equipped with awl point and the adpting flange that is connected as a single entity at the cylinder body two ends, and cylinder body is vertical mutually with adpting flange; On cylinder body, along axis direction, be provided with two pyramid type helical blades that are connected as a single entity symmetrically, and the tapering of pyramid type helical blade is consistent with the taper direction of awl point; All being inlaid with spacing on the tip of awl point, bottom, the conical surface and on the sword of pyramid type helical blade is 1.5～2.5 centimetres hard alloy blocks, and also shape in the shape of a spiral of the hard alloy blocks on the awl sharp conical surface.
The utility model trochoid spiral rock drill bit, wherein the soffit at the pyramid type helical blade also is inlaid with hard alloy blocks.
The utility model trochoid spiral rock drill bit, wherein the hardness of hard alloy blocks is HRC 70～75.
The utility model trochoid spiral rock drill bit all is being welded with spacing less than 2 centimetres, the hard alloy blocks of hardness HRC 71 on the tip of awl point, bottom, the conical surface and on the sword of pyramid type helical blade.Can directly creep into for the rock of hardness less than 35MPa.During rock cutting, substitute line or face contact with a contact, and with gradually bore, the mode of flaring, creep into and embed in the rock, thereby improve the cutting power of drill bit, drilling efficiency height, and low cost of manufacture.
Description of drawings
Fig. 1 is the utility model trochoid spiral rock drill bit structural upright schematic diagram;
Fig. 2 looks schematic diagram for the left side of Fig. 1.
The specific embodiment
By Fig. 1, Fig. 2 as seen, the utility model trochoid spiral rock drill bit comprises cylinder body 38, be respectively equipped with the awl point 39 and the adpting flange 40 that are connected as a single entity at cylinder body 38 two ends, and cylinder body 38 is vertical mutually with adpting flange 40; On cylinder body 38, along axis direction, be provided with two pyramid type helical blades 41 that are connected as a single entity symmetrically, and the tapering of pyramid type helical blade 41 is consistent with the taper direction of awl point 39; All be welded with the hard alloy blocks 42 of spacing on the tip of awl point 39, bottom, the conical surface and on the sword of pyramid type helical blade 41 less than 2 centimetres, and also shape in the shape of a spiral of the hard alloy blocks 42 on sharp 39 conical surfaces of awl.Simultaneously, the soffit at pyramid type helical blade 41 also is welded with hard alloy blocks 42, the enhancing cutting power.The HRC of hard alloy blocks 42 is more than 70.
When installing and using, drill bit is fixedlyed connected with tube connector or auger stem by connect sending out blue 40.
Claims (3)
1. a trochoid spiral rock drill bit is characterized in that comprising cylinder body (38), is respectively equipped with awl point (39) and the adpting flange (40) that is connected as a single entity at described cylinder body (38) two ends, and described cylinder body (38) is vertical mutually with adpting flange (40); On described cylinder body (38), along axis direction, be provided with two the pyramid type helical blades (41) that are connected as a single entity symmetrically, and the tapering of described pyramid type helical blade (41) is consistent with the taper direction of described awl point (39); All being inlaid with spacing on the tip of described awl point (39), bottom, the conical surface and on the sword of described pyramid type helical blade (41) is 1.5～2.5 centimetres hard alloy blocks (42), and also shape in the shape of a spiral of the described hard alloy blocks (42) on described awl point (39) conical surface.
2. trochoid spiral rock drill bit according to claim 1 is characterized in that also being inlaid with described hard alloy blocks (42) at the soffit of described pyramid type helical blade (41).
3. trochoid spiral rock drill bit according to claim 1 and 2, the hardness that it is characterized in that described hard alloy blocks (42) is HRC 70～75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720149495XU CN201068740Y (en) | 2007-06-06 | 2007-06-06 | Conical helical rock drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720149495XU CN201068740Y (en) | 2007-06-06 | 2007-06-06 | Conical helical rock drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068740Y true CN201068740Y (en) | 2008-06-04 |
Family
ID=39490120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720149495XU Expired - Fee Related CN201068740Y (en) | 2007-06-06 | 2007-06-06 | Conical helical rock drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068740Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011555A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Double-cone and double-helix drill bit for rotary drilling rig |
| CN102011552A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN102011553A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Double-helix drill bit of rotary drilling rig |
| CN102011554A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN102345444A (en) * | 2011-07-20 | 2012-02-08 | 胡志军 | Long spiral bit for foundation construction |
| CN105507819A (en) * | 2016-01-18 | 2016-04-20 | 湖州迈隆机械有限公司 | Drill bit for drilling |
| CN106761422A (en) * | 2016-12-23 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of staged Percusion spiral drill head |
| CN113250610A (en) * | 2021-06-07 | 2021-08-13 | 山东科技大学 | Spiral propelling type underground exploration trolley |
-
2007
- 2007-06-06 CN CNU200720149495XU patent/CN201068740Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011555A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Double-cone and double-helix drill bit for rotary drilling rig |
| CN102011552A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN102011553A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Double-helix drill bit of rotary drilling rig |
| CN102011554A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN102011552B (en) * | 2010-09-07 | 2013-01-16 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN102011554B (en) * | 2010-09-07 | 2013-01-16 | 李新桥 | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| CN102345444A (en) * | 2011-07-20 | 2012-02-08 | 胡志军 | Long spiral bit for foundation construction |
| CN105507819A (en) * | 2016-01-18 | 2016-04-20 | 湖州迈隆机械有限公司 | Drill bit for drilling |
| CN106761422A (en) * | 2016-12-23 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of staged Percusion spiral drill head |
| CN113250610A (en) * | 2021-06-07 | 2021-08-13 | 山东科技大学 | Spiral propelling type underground exploration trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wendeng Heli Machinery Co., Ltd. Assignor: Zhou Hongsheng Contract fulfillment period: 2009.8.10 to 2017.6.5 Contract record no.: 2009370000245 Denomination of utility model: Conical helical rock drill head Granted publication date: 20080604 License type: Exclusive license Record date: 20090824 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.10 TO 2017.6.5; CHANGE OF CONTRACT Name of requester: WENDENG HELI MACHINERY CO., LTD. Effective date: 20090824 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20140606 |