CN2404999Y - Roller cone bit - Google Patents
Roller cone bit Download PDFInfo
- Publication number
- CN2404999Y CN2404999Y CN 99245246 CN99245246U CN2404999Y CN 2404999 Y CN2404999 Y CN 2404999Y CN 99245246 CN99245246 CN 99245246 CN 99245246 U CN99245246 U CN 99245246U CN 2404999 Y CN2404999 Y CN 2404999Y
- Authority
- CN
- China
- Prior art keywords
- bit
- tooth
- roller cone
- rock
- cone bit
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a roller cone bit which is used for the petroleum drilling, the geology drilling, and the mineral drilling. The structure of the roller cone bit is different from the structure of the existing roller cone bit. The roller cone bit is characterized in that teeth with different shapes are alternately arranged on the. same tooth ring of the bit roller cone Because the teeth with different shapes have different rock breaking mechanisms and different adaptive performances to the stratum. The structure is adopted, the rock breaking efficiency of the roller cone bit and the adaptability of the bit to the stratum can be improved.
Description
The utility model relates to a kind of rock bit that is used for petroleum geology exploration, mining.
Rock bit is formed by component-assembled such as bit leg, gear wheel, teeth, by drill bit in the revolution in shaft bottom, rotation, axially the slip of longitudinal vibration and gear wheel makes drill teeth produce impact, granulitization and slip shear action to the stratum to come fractured rock.What general rock bit was arranged on the same gear ring of same gear wheel is the tooth of same shape, crack distribution that forms in the broken rock mode of every tooth of this gear ring, the rock and formed broken hole shape are identical like this, rock breaking mechanism is single, influencing each other of two broken rock processes of tooth and interting mutually of the crackle that forms before and after being unfavorable for, and can produce any rock breaking efficiency hardly when making a back dedentition go into the fragmentation hole of last tooth when big or tooth is uniform when the drill bit deviant, can influence the efficiency of breaking rock of this gear ring.Simultaneously, because profile of tooth is single, can influence the adaptive capacity of drill bit to the stratum.
The purpose of this utility model is in order to overcome shortcoming of the prior art, and a kind of rock bit of arranging the difformity tooth on the same gear ring of same gear wheel is provided, and improves the efficiency of breaking rock of this gear ring and the drill bit adaptive capacity to the stratum.
The utility model can be achieved by the following technical programs: arrange difform tooth on the same gear ring of the same gear wheel of drill bit.
Compared with prior art, the utlity model has following beneficial effect: on the same gear ring of same gear wheel, arrange difform tooth, make the same gear ring of gear wheel can have multiple rock breaking mechanism, connecting each other of two broken rock processes of tooth and interting mutually of the crackle that forms before and after strengthening, and when the drill bit deviant big or tooth is uniform when making the fragmentation hole that a back dedentition goes into last tooth, because the profile of tooth difference of two teeth in front and back still can produce rock breaking efficiency, can improve the efficiency of breaking rock of this gear ring, improve the adaptive capacity of drill bit simultaneously the stratum.
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is the general assembly drawing of the utility model rock bit;
Accompanying drawing 2 is the cloth tooth figure of the same gear ring of this practical rock bit;
Among the figure: 1, bit leg; 2, gear wheel; 3, tooth; 4, hemi-spherical ended shape insert; 5, conical tooth; 6, scoop chisel insert.
Embodiment: among Fig. 1, rock bit is made up of bit leg (1), gear wheel (2), tooth parts such as (3).Rock bit is a tricone bit, also can be single-cone rotary drill bit or other polydonitas wheel drill bit, among Fig. 2, on the same gear ring of gear wheel, arrange difform tooth, can be hemi-spherical ended shape insert (4) and scoop chisel insert (6), it also can be the combination of conical tooth (5) and scoop chisel insert (6) or other shape tooth, make this gear ring have multiple rock breaking mechanism, connecting each other of two broken rock processes of tooth and interting mutually of the crackle that forms before and after strengthening, and when the drill bit deviant big or tooth is uniform when making the fragmentation hole that a back dedentition goes into last tooth, because the shape difference of two teeth in front and back still can produce rock breaking efficiency, reach the efficiency of breaking rock that improves drill bit and drill bit order to the adaptive capacity on stratum.
Claims (2)
1, a kind of rock bit mainly is made up of bit leg, gear wheel, tooth, and tooth is arranged on the gear wheel, it is characterized in that arranging on the same gear ring of the same gear wheel of drill bit difform tooth.
2, rock bit according to claim 1 is characterized in that drill bit is single cone or polydonita wheel construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99245246 CN2404999Y (en) | 1999-11-04 | 1999-11-04 | Roller cone bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99245246 CN2404999Y (en) | 1999-11-04 | 1999-11-04 | Roller cone bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2404999Y true CN2404999Y (en) | 2000-11-08 |
Family
ID=34031187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99245246 Expired - Lifetime CN2404999Y (en) | 1999-11-04 | 1999-11-04 | Roller cone bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2404999Y (en) |
-
1999
- 1999-11-04 CN CN 99245246 patent/CN2404999Y/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207829807U (en) | The multi-rod drill bit structure of drill carriage | |
| CN208981966U (en) | Twin-stage drill bit | |
| CN208885190U (en) | A kind of Mixed drilling bit with plow tooth | |
| CN202659149U (en) | Disc-type composite drill bit with impact cutting structure | |
| CN102022084B (en) | Compound single cone bit | |
| CN209308635U (en) | PDC drill bit with multiple stage crushing function | |
| CN2404999Y (en) | Roller cone bit | |
| CN103758458B (en) | A kind of hybrid single-cone rotary drill bit | |
| CN201347722Y (en) | Pre-crushing stress PDC drill bit | |
| CN202300205U (en) | Reinforced full polycrystalline diamond compact anchor drill bit | |
| CN201588554U (en) | Addendum deviated button bit | |
| CN205477376U (en) | PDC drill bit suitable for hard interbedded layer creeps into | |
| CN201507242U (en) | Mono-cone bit | |
| CN204476283U (en) | A kind of novel five wing PDC drill bits | |
| CN103184833A (en) | Diamond bit with large saw-teeth | |
| CN2281412Y (en) | Stable PDC drill bit | |
| CN2490305Y (en) | Tooth form for tri-cone rotary drill bit | |
| CN1304720C (en) | High strength antiwear drilling bit of multiple rollers | |
| CN201141280Y (en) | Mechanical vibration mechanism for mining slewing drill rig | |
| CN2307904Y (en) | Tri-cone rotary drill bit cutting structure | |
| CN205713988U (en) | A kind of efficient rotary digs rock drill bit | |
| CN2921253Y (en) | Tri-cone rotary drill bit cutting structure with build-up welding pinion | |
| CN201165849Y (en) | Full-hole drilling diamond alloy detritus boring tool | |
| CN2462068Y (en) | Rotary bull rod for roofbolt drilling machine | |
| CN213573918U (en) | Novel PDC (polycrystalline diamond compact) and roller cone composite drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |