CN201915844U - Rock roller bit - Google Patents
Rock roller bit Download PDFInfo
- Publication number
- CN201915844U CN201915844U CN2010206675031U CN201020667503U CN201915844U CN 201915844 U CN201915844 U CN 201915844U CN 2010206675031 U CN2010206675031 U CN 2010206675031U CN 201020667503 U CN201020667503 U CN 201020667503U CN 201915844 U CN201915844 U CN 201915844U
- Authority
- CN
- China
- Prior art keywords
- gear wheel
- roller
- tooth pawl
- wearing liner
- rock
- 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 rock roller bit, which comprises a roller claw, and a roller cone sheathed on a shaft neck of the roller claw, and is characterized in that a roller claw wearproof bushing installed on a main shaft neck of the roller claw and a roller cone wearproof bushing installed on the inner wall of the roller cone are respectively installed in corresponding positions of the main shaft neck of the roller claw and the roller cone. The rock roller bit can improve the shock resistance capability, the abrasive resistance, the resistance to corrosion, and random alternation load bearing capability of a main bearing, and prolongs the service life.
Description
Technical field
The utility model is relevant with the rock bit of geological drilling that is applicable to oil, natural gas and other mineral resources and exploitation.
Background technology
Though diamond bit has been widely used in the geological drilling and the exploitation of oil, natural gas and other mineral resources at present.But diamond bit cost height, and can only use rock bit in many cases, and rock bit mainly is to utilize broken rock of axial impact and revolution scraping to shear broken rock.Because in the Process of Oil Well Drilling, formation condition is very complicated, the characteristic difference of different rocks, and impact rotating creeps into and can address this problem effectively.Yet in the broken rock process of impact rotating of drill bit, mainly born this huge random shock pressure-contact fatigue load by trunnion.Simultaneously, because the continuous increase of drilling depth, the operating ambient temperature of drill bit constantly raises, and in deep-well and ultradeep well drilling process, environment temperature is through being everlasting more than 100 ℃.The heat that produces in the sliding friction of gear claw journal place is difficult for distributing like this, thereby makes the temperature on sliding friction surface raise the lubricating condition variation.Simultaneously, in the stratum, inevitably can there be H
2Korrosionsmediums such as S further worsen the condition of work at axle journal place.Existing rock bit by the tooth pawl, be positioned at tooth that swivel on the tooth pawl, accumulator, gear wheel, broken rock use etc. and form.The rock bit that has is inlayed cover on gear wheel, but owing to be subjected to the restriction of tooth pawl and gear wheel bulk material properties, can not make trunnion reach best friction pair optimization pairing and satisfied service behaviour by heat treatment, the base bearing of therefore general rock bit at first lost efficacy.Had a strong impact on the life-span of rock bit base bearing, and reduced the application life of whole rock bit.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, a kind of impact resistance, abrasive resistance, resistance to corrosion that can improve base bearing to be provided, and bears fluctuating load ability at random, the rock bit that increases the service life.
The purpose of this utility model is achieved like this:
The utility model rock bit, comprise the tooth pawl, be sleeved on the gear wheel on the gear claw journal, it is characterized in that the tooth pawl anti-wearing liner that is contained in respectively on the tooth pawl trunnion periphery having on tooth pawl trunnion and the gear wheel opposite position, be contained in the gear wheel anti-wearing liner on the gear wheel inwall, adopt first, the gear wheel anti-wearing liner, make sliding friction campaign between gear wheel and the tooth pawl trunnion face convert the sliding friction campaign between the anti-wearing liner to, and the anti-wearing liner material is not limited by the material property of gear wheel and tooth pawl, can dispose with the anti-inefficacy ability of the best by the working condition requirement of rock bit, and the application life of improving bearing and rock bit.
Above-mentioned tooth pawl trunnion and tooth pawl anti-wearing liner connect the location by first link button, and gear wheel inwall and gear wheel anti-wearing liner connect the location by second link button.
On above-mentioned tooth pawl anti-wearing liner, the gear wheel anti-wearing liner opposite position first scuff-resistant coating, second scuff-resistant coating are arranged respectively.
The utility model rock bit anti-wearing liner that edge is worked in coordination on gear wheel and tooth pawl respectively.The anti-wearing liner material is not limited by the material property of gear wheel and tooth pawl, can carry out material configuration with the anti-inefficacy ability of the best by the working condition requirement of rock bit, the anti-wearing liner friction surface of inlaying is coated with different scuff-resistant coatings respectively, make trunnion reach best friction pair optimization pairing and satisfied service behaviour, lining and gear wheel, by special key joint location, can reduce to inlay the magnitude of interference when overlapping between lining and the tooth pawl, reduce the tensile stress of anti-wearing liner, avoid the anti-wearing liner cracking, make and connect reliable and convert the sliding friction campaign between gear wheel and the tooth pawl between the anti-wearing liner sliding friction campaign.Adopt above measure obviously to improve the ability that the trunnion opposing was lost efficacy, prolonged the application life of drill bit.Reduce the cost of oil drilling, improved the efficient of drilling well.Simultaneously, the material of the material of lining, Technology for Heating Processing, coating can require to select different material and technology manufacturing with technology according to different stratum and bit operating mode, makes base bearing adapt to different working environments and also reduces cost to greatest extent.
The utility model has improved impact resistance, abrasive resistance, the resistance to corrosion of base bearing greatly and has born fluctuating load ability at random, has prolonged application life greatly.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
The specific embodiment:
Referring to Fig. 1, Fig. 2, the present embodiment rock bit, include accumulator 1 and swivel 2 tooth pawl 3, be sleeved on the gear wheel that contains tooth 54 on the gear claw journal.The tooth pawl anti-wearing liner 7 that is contained in respectively on the tooth pawl trunnion is being arranged on tooth pawl trunnion and the gear wheel opposite position, be contained in the gear wheel anti-wearing liner 10 on the gear wheel inwall.Tooth pawl trunnion and tooth pawl anti-wearing liner connect the location by first link button 6.Gear wheel inwall and gear wheel anti-wearing liner connect the location by second link button 11.
Referring to Fig. 2, first scuff-resistant coating 8, second scuff-resistant coating 9 are arranged respectively on tooth pawl anti-wearing liner, the gear wheel anti-wearing liner opposite position.
The various embodiments described above are that foregoing of the present utility model is further described, but this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present utility model.
Claims (3)
1. rock bit comprises the tooth pawl, is sleeved on the gear wheel on the gear claw journal, and it is characterized in that is having the tooth pawl anti-wearing liner that is contained in respectively on the tooth pawl trunnion, is being contained in the gear wheel anti-wearing liner on the gear wheel inwall on tooth pawl trunnion and the gear wheel opposite position.
2. rock bit as claimed in claim 1 is characterized in that tooth pawl trunnion and tooth pawl anti-wearing liner connect the location by first link button, and gear wheel inwall and gear wheel anti-wearing liner connect the location by second link button.
3. rock bit as claimed in claim 1 or 2 is characterized in that on tooth pawl anti-wearing liner, the gear wheel anti-wearing liner opposite position first scuff-resistant coating, second scuff-resistant coating being arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675031U CN201915844U (en) | 2010-12-20 | 2010-12-20 | Rock roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675031U CN201915844U (en) | 2010-12-20 | 2010-12-20 | Rock roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915844U true CN201915844U (en) | 2011-08-03 |
Family
ID=44415646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206675031U Expired - Fee Related CN201915844U (en) | 2010-12-20 | 2010-12-20 | Rock roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828693A (en) * | 2012-09-25 | 2012-12-19 | 西南石油大学 | Roller bit of rolling and sliding floating sleeve bearing |
| CN103291220A (en) * | 2013-06-05 | 2013-09-11 | 西南石油大学 | Roller bit bearing with sleeves at internally-fixed and externally-floating end |
-
2010
- 2010-12-20 CN CN2010206675031U patent/CN201915844U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828693A (en) * | 2012-09-25 | 2012-12-19 | 西南石油大学 | Roller bit of rolling and sliding floating sleeve bearing |
| CN102828693B (en) * | 2012-09-25 | 2015-03-04 | 西南石油大学 | Roller bit of rolling and sliding floating sleeve bearing |
| CN103291220A (en) * | 2013-06-05 | 2013-09-11 | 西南石油大学 | Roller bit bearing with sleeves at internally-fixed and externally-floating end |
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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: 20110803 Termination date: 20131220 |