CN201103343Y - Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter - Google Patents
Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter Download PDFInfo
- Publication number
- CN201103343Y CN201103343Y CNU2007200846877U CN200720084687U CN201103343Y CN 201103343 Y CN201103343 Y CN 201103343Y CN U2007200846877 U CNU2007200846877 U CN U2007200846877U CN 200720084687 U CN200720084687 U CN 200720084687U CN 201103343 Y CN201103343 Y CN 201103343Y
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- bit
- hob
- rock
- drill
- large diameter
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Abstract
The utility model relates to a solid rock spherical tooth hob bit for a bored pile with super large diameter, which is welded by armor plates. A drill rod sub of a drilling machine can be matched by an upside plain flange; a drilling fluid flow passage which has access to a water gap at the lower part from top to bottom by the upside plane flange is arranged in the bit,; the water gap at the lower part is in a wide-flat bell mouth shape; the outer circle of the bit main body is welded with a gauge protection strip that is inlayed with cemented carbide; inner cavity of the bit body is filled with compacting steel grit; five large-diameter flow-through water channels which are mutually communicated from top to bottom are made at the bit body; the bottom part of the bit body is connected with the hob bit by a support. The hob bit has the advantages that: by adopting a compound cutters arrangement mode and a lug boss shape of the rock surface of the hole bottom in the process of penetrating, an ideal drilling efficacy can be realized, the effective extrusion and crushing of the rock in basic hole bottom can be realized, which is beneficial to preventing the hole from inclining. The bottom surface of the bit can be selectively provided with a wedge-shaped rock breaking hob or a spherical tooth rock breaking hob according to the requirement of a project. The spherical crown cemented carbide inlayed on the hob surface is distributed evenly and has the advantages of stable work and long service life.
Description
Technical field
The utility model relates to a kind of engineering machinery drilling tool, especially a kind of super-large diameter insert cutter drill bit.
Background technology
Domestic in carrying out the building construction foundation construction, mainly adopt drill hammer to creep into for the pile-base supporting layer hard base rock and creep into reinforced alloy rotary bit.The percussion drilling bit diameter is limited, reinforced alloy scraper rotary bit unstable properties, and application life is short, and unit drilling depth cost height is extremely low to the hard base rock drilling efficiency.Above-mentioned two class drill bits are the more unavoidable inclined hole that causes when hard and scar inclined drilling, and future trouble is serious.
Summary of the invention
The purpose of this utility model is to provide the reasonable facility of pile foundation hard base rock rotary drilling, avoids the deficiency of above-mentioned facility, satisfies requirement of engineering, and drilling depth is stable, and fault is few, and single uses average price low.
The technical solution of the utility model is: the hard orbicule tooth of a kind of super-large diameter drilled pile roller cutter bit, this drill bit is that steel plate is welded, can connect the tool joint of rig by the upper plane flange, be provided with the brill liquid runner by the mouth of a river of the sensible bottom of upper plane flange in the drill bit from top to bottom, the mouth of a river of bottom is wide flat toroidal; Be welded with the guarantor footpath bar of tungsten carbide button on the drill main body cylindrical, the closely knit steel sand of drill body inner chamber filling is made five straight-through water channels of major diameter of intercommunication up and down on the bit body, be connected with the insert cutter drill bit in the bit body bottom by bearing.Insert cutter mixing arrangement mode, outer rim are the major diameter hobboing cutter, and interior circle is the minor diameter hobboing cutter.Leaf through from the drill bit bottom surface, be distributed with the insert cutter of (310mm) at 12 o'clock on the twice track of cylindrical, first road is totally six on the elevation angle 45 degree supports, and the circular cone deflection center is in drill bit.Second road also is also six at the 45 degree support elevations angle, the 45 degree elevations angle, and three circular cone deflection centers are in drill bit, and three outside drill bit.Three road tracks of inner circle and bit central not equal portions are distributed with the insert cutter of ten (205mm) at 8 o'clock.
Advantage of the present utility model is: adopt hybrid cloth cutter mode, because the limit cutter is 12 o'clock a hobboing cutter, positive cutter is 8 o'clock a hobboing cutter, the hole bed rock face that gram is got in creeping into becomes boss shape, increased the scope of freedom, reasonable zigzag tooth position, can be effectively to extruding, the fragmentation of basic hole bed rock stone, reach the desirable efficiency of creeping into, help preventing hole deviation again.The drill bit bottom surface is according to the optional dress wedge shape of requirement of engineering Hob for cutting rock, ball tooth Hob for cutting rock.The ball top carbide alloy that the hobboing cutter face is inlayed evenly gathers working stability, long working life.
Description of drawings
Fig. 1 is the hard orbicule tooth of a utility model super-large diameter drilled pile roller cutter bit structural representation;
Fig. 2 is the hard orbicule tooth of a utility model super-large diameter drilled pile roller cutter bit bottom view;
Fig. 3 is that the guarantor of the hard orbicule tooth of the utility model super-large diameter drilled pile roller cutter bit is through the bar structural representation.
The specific embodiment
The hard orbicule tooth of a kind of super-large diameter drilled pile roller cutter bit, this drill bit is that steel plate is welded, can connect the tool joint of rig by upper plane flange 1, be provided with the brill liquid runner 2 by the mouth of a river 5 of the sensible bottom of upper plane flange 1 in the drill bit from top to bottom, the mouth of a river 2 of bottom is wide flat toroidal; Be welded with the guarantor footpath bar 3 of tungsten carbide button on the drill main body cylindrical, the closely knit steel sand of drill body inner chamber filling is made five straight-through water channels 4 of major diameter of intercommunication up and down on the bit body, be connected with insert cutter drill bit 6,7 in the bit body bottom by bearing.Insert cutter mixing arrangement mode, outer rim are major diameter hobboing cutter 7, and interior circle is a minor diameter hobboing cutter 6.
A kind of super-large diameter insert cutter drill bit, drill main body are that steel plate is welded.Self rigidity is big, sturdy and durable.Upper plane flange 1 is excessive interface, by installing flange additional, can connect the tool joint of different engineering drillers.By the sensible from top to bottom brill liquid runner 2 at the mouth of a river 5 down of upper plane flange 1, in the engineering all can by rig supporting link just or the anti-pump that circulates drive, adopt direct circulation or anti-endless form to bore the liquid circulation.The mouth of a river 5 of bottom is wide flat toroidal, can effectively wash, cool off hobboing cutter during direct circulation, reduces to stick with paste and bores, and drill bit is from clear.Anti-circulation time adsorption plane territory is wide, and the distance at the boring mud arrival mouth of a river is basic identical, effectively draws hole subdrilling slag, guarantees that deslagging is timely.On the drill main body cylindrical, the guarantor of tungsten carbide button footpath bar 3 is evenly equipped with 16 altogether, connects for weldering with the outer bucket of drill body circumference.Protect footpath bar 3 and can make the aperture stable, bit life prolongs, and part is revised the stake hole.The drill body inner chamber is fully used, and the closely knit steel sand of filling is big from weight, and the guide character that tool is good, oblique-proof type can be regulated drilling pressure.Make five straight-through water holes of major diameter of intercommunication up and down on the bit body, guarantee that drill bit liquid is smooth logical, when promoting drilling tool, prevent suction, the protection hole wall is stable.
Leaf through from the drill bit bottom surface, insert cutter 6,7, the first roads that are distributed with (310mm) on the twice track of cylindrical at 12 o'clock are totally six on the elevation angle 45 degree supports, and the circular cone deflection center is in drill bit.Second road also is also six at the 45 degree support elevations angle, the 45 degree elevations angle, and three circular cone deflection centers are in drill bit, and three outside drill bit.Three road tracks of inner circle and bit central not equal portions are distributed with the insert cutter of ten (205mm) at 8 o'clock.This hybrid cloth cutter mode, because the limit cutter is 12 o'clock a hobboing cutter, positive cutter is 8 o'clock a hobboing cutter, the hole bed rock face that gram is got in creeping into becomes boss shape, increased the scope of freedom, reasonable zigzag tooth position, can be effectively to extruding, the fragmentation of basic hole bed rock stone, reach the desirable efficiency of creeping into, help preventing hole deviation again.The ball tooth carbide alloy that the hobboing cutter face is inlayed evenly gathers working stability, long working life.
Claims (1)
1. the hard orbicule tooth of super-large diameter drilled pile roller cutter bit, it is characterized in that: this drill bit is that steel plate is welded, can connect the tool joint of rig by upper plane flange (1), be provided with the brill liquid runner (2) by the mouth of a river (5) of the sensible bottom of upper plane flange (1) in the drill bit from top to bottom, the mouth of a river of bottom (5) are wide flat toroidal; Be welded with the guarantor footpath bar (3) of tungsten carbide button on the drill main body cylindrical, the closely knit steel sand of drill body inner chamber filling is made five straight-through water channels (4) of major diameter of intercommunication up and down on the bit body, be connected with insert cutter drill bit (6,7) in the bit body bottom by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200846877U CN201103343Y (en) | 2007-05-10 | 2007-05-10 | Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200846877U CN201103343Y (en) | 2007-05-10 | 2007-05-10 | Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103343Y true CN201103343Y (en) | 2008-08-20 |
Family
ID=39950368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200846877U Expired - Fee Related CN201103343Y (en) | 2007-05-10 | 2007-05-10 | Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103343Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733757A (en) * | 2012-06-07 | 2012-10-17 | 江苏中机矿山设备有限公司 | Drill bit of drilling type coal mining machine |
| CN103233466A (en) * | 2013-04-23 | 2013-08-07 | 罗海军 | Construction method for large-diameter bored pile penetrating through deep granular bedding |
| CN103821455A (en) * | 2013-11-14 | 2014-05-28 | 北京中煤矿山工程有限公司 | Shaft heading machine drill bit structure capable of correcting well guiding deflection |
| CN103993836A (en) * | 2014-06-04 | 2014-08-20 | 梁振西 | Drill bit for hole drilling in large-diameter pile of bridge foundation |
| CN104612594A (en) * | 2015-02-12 | 2015-05-13 | 西南石油大学 | Drill bit with string-shaped water pores |
| CN109154181A (en) * | 2016-06-17 | 2019-01-04 | 哈里伯顿能源服务公司 | Rolling element with half lock-wedge yoke |
| CN111622669A (en) * | 2020-05-22 | 2020-09-04 | 中铁大桥局集团第二工程有限公司 | Auxiliary drilling device for inclined rock surface and construction method thereof |
| US10975664B2 (en) | 2018-08-17 | 2021-04-13 | Ancor-Loc (Nz) Limited | Well or bore clearing tool |
-
2007
- 2007-05-10 CN CNU2007200846877U patent/CN201103343Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733757B (en) * | 2012-06-07 | 2014-07-09 | 江苏中机矿山设备有限公司 | Drill bit of drilling type coal mining machine |
| CN102733757A (en) * | 2012-06-07 | 2012-10-17 | 江苏中机矿山设备有限公司 | Drill bit of drilling type coal mining machine |
| CN103233466B (en) * | 2013-04-23 | 2015-07-15 | 罗海军 | Construction method for large-diameter bored pile penetrating through deep granular bedding |
| CN103233466A (en) * | 2013-04-23 | 2013-08-07 | 罗海军 | Construction method for large-diameter bored pile penetrating through deep granular bedding |
| CN103821455A (en) * | 2013-11-14 | 2014-05-28 | 北京中煤矿山工程有限公司 | Shaft heading machine drill bit structure capable of correcting well guiding deflection |
| CN103993836A (en) * | 2014-06-04 | 2014-08-20 | 梁振西 | Drill bit for hole drilling in large-diameter pile of bridge foundation |
| CN103993836B (en) * | 2014-06-04 | 2016-07-13 | 梁振西 | Drill bit for the boring of bridge foundation large diameter pile |
| CN104612594A (en) * | 2015-02-12 | 2015-05-13 | 西南石油大学 | Drill bit with string-shaped water pores |
| CN109154181A (en) * | 2016-06-17 | 2019-01-04 | 哈里伯顿能源服务公司 | Rolling element with half lock-wedge yoke |
| US11015395B2 (en) | 2016-06-17 | 2021-05-25 | Halliburton Energy Services, Inc. | Rolling element with half lock |
| US11015396B2 (en) | 2016-06-17 | 2021-05-25 | Halliburton Energy Services, Inc. | Rolling element with half lock-wedge lock |
| US10975664B2 (en) | 2018-08-17 | 2021-04-13 | Ancor-Loc (Nz) Limited | Well or bore clearing tool |
| CN111622669A (en) * | 2020-05-22 | 2020-09-04 | 中铁大桥局集团第二工程有限公司 | Auxiliary drilling device for inclined rock surface and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20100510 |