CN2526488Y - Roller bit for carburizing reinforced runner - Google Patents
Roller bit for carburizing reinforced runner Download PDFInfo
- Publication number
- CN2526488Y CN2526488Y CN 02202512 CN02202512U CN2526488Y CN 2526488 Y CN2526488 Y CN 2526488Y CN 02202512 CN02202512 CN 02202512 CN 02202512 U CN02202512 U CN 02202512U CN 2526488 Y CN2526488 Y CN 2526488Y
- Authority
- CN
- China
- Prior art keywords
- bit
- carburizing
- cone
- runner
- flow channel
- 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 cone bit for a carburizing reinforced flow channel, which comprises a cone leg and a cone installed at the lower part of the cone leg. The upper part of the cone leg is provided with a flow channel and a nozzle, the flow channel is arranged on the cone leg, and a carburized layer is respectively processed on the curved surface of the tail end of the flow channel, the cylindrical surface of a nozzle inlet and the end surface of the nozzle inlet. A carburized layer is formed on the flow channel of the cone leg in order to reinforce the flow channel of the cone bit to cause the cone bit to adapt drilling conditions of high pump pressure, high flow rate and assembled nozzle. The cone bit for a carburizing reinforced flow channel can avoid the earlier corrosion damage of the bit, which is caused by the erosion of the flow channel, and can avoid other drilling accidents caused by the earlier corrosion damage of the bit.
Description
Technical field
Utility model belongs to oil, geology boring means field, relates to a kind of rock bit, relates in particular to the rock bit that runner is strengthened in a kind of carburizing.
Background technology
At present, the most disturbing when using rock bit is the erosion problem of drill bit runner, especially the erosion problem of the face of cylinder at the flow field end of bit leg, nozzle entrance place and end face, its serious consequence is after being penetrated by erosion between flow field end and the oil storage system, mud enters bearing through oil storage system, oil through, axle journal is thrust, produce the fall accident of well of gear wheel and axle journal.
The rock bit that a kind of brush plating of Chinese patent (93241304.8) is strengthened, it discloses a kind of technology of losing ability by the anti-impact that improves water passage surface at runner place brush plating one deck nickel alloy.Though this technology can improve the anti-impact erosion ability of rock bit, brush plating process complexity, input cost height.
The utility model content
Problem to be solved in the utility model is, overcomes the above-mentioned defective that aforementioned rock bit exists, and a kind of rock bit of strengthening runner with the carburizing of carburized layer is provided.
The utility model solves its technical problem and takes following technical scheme to realize, the rock bit of runner is strengthened in a kind of carburizing that provides according to the utility model, comprise: bit leg and the gear wheel of installing in its underpart, be provided with runner and nozzle on the top of this bit leg, this bit leg is provided with runner, the curved surface of described flow field end and the nozzle entrance face of cylinder and nozzle entrance end face all are processed with carburized layer.
The utility model solves its technical problem and can also take following technical scheme further to realize:
The rock bit of runner is strengthened in aforesaid carburizing, and the thickness range of wherein said carburized layer is 0.3～6mm.
The rock bit of runner is strengthened in aforesaid carburizing, and the phosphorus content of wherein said carburized layer is 0.5%～2.0%.
The rock bit of runner is strengthened in aforesaid carburizing, and wherein said carburized layer hardness scope is HRC35～65.
The utility model compared with prior art has significant advantage and beneficial effect.By above technical scheme as can be known, the utility model has following advantage at least under the structure configuration of excellence:
On the runner of bit leg, form carburized layer, thereby strengthen curved surface and the nozzle entrance face of cylinder and the nozzle entrance end face of rock bit runner, particularly flow field end, make rock bit can adapt to the drilling condition of high pump pressure, big discharge capacity and built up nozzle; The drill bit of avoiding causing because of the runner erosion deteriorates and in early days by other drilling failures of its initiation; The utility model manufacturing process is simple, and input cost is low, and applicability is strong.
The specific embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is an overall structure generalized section of the present utility model.
Accompanying drawing indicates:
1-bit leg, 2-runner, 3-flow field end, the 4-nozzle entrance face of cylinder, 5-nozzle entrance end face, 6-sealed nozzle circle, 7-nozzle, 8-nozzle retaining ring, 9-gear wheel, 10-bearing, 11-oil through, 12-oil storage system.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment, structure, feature and effect thereof that foundation the utility model is provided, describe in detail as after.
See also Fig. 1, before the bit leg carburizing, get out a through hole by the dimensional requirement on the nozzle entrance face of cylinder.During carburizing, the carburizing face of the surface of flow field end (3) and the nozzle entrance face of cylinder (4) and teeth palm bearing (10) all is not coated with masking paste, and back machined surface coating masking paste that can not carburizing.After the carburizing, bore the carburized layer that goes to the nozzle installation region.Q-tempering technology is passed through on surface after the carburizing again, makes case hardness bring up to HRC35～65 by original about HRC30.During carburizing, by controlled atmospher temperature and composition, carburized (case) depth is controlled at 0.3～6mm, the carbon content on top layer is controlled at 0.5%～2.0%.Behind the Q-tempering, the installation requirement by nozzle and annex thereof puts dimensioned in place again.And nozzle entrance end face (5) because of being among the carburizing top layer, has also suitably improved case case carbon, and behind Q-tempering, case hardness and anti-impact erosion ability also increase.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1, the rock bit of runner is strengthened in a kind of carburizing, comprise: bit leg (1) and the gear wheel of installing in its underpart (9), be provided with runner (2) and nozzle (7) on the top of this bit leg, this bit leg is provided with runner (2), it is characterized in that, the curved surface of described flow field end (3) and the nozzle entrance face of cylinder (4) and nozzle entrance end face (5) all are processed with carburized layer.
2, the rock bit of runner is strengthened in carburizing according to claim 1, it is characterized in that the thickness range of described carburized layer is 0.3～6mm.
3, the rock bit of runner is strengthened in carburizing according to claim 1 and 2, and it is characterized in that: the phosphorus content of described carburized layer is 0.5%～2.0%.
4, the rock bit of runner is strengthened in carburizing according to claim 3, it is characterized in that described carburized layer hardness scope is HRC35～65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202512 CN2526488Y (en) | 2002-01-25 | 2002-01-25 | Roller bit for carburizing reinforced runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202512 CN2526488Y (en) | 2002-01-25 | 2002-01-25 | Roller bit for carburizing reinforced runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526488Y true CN2526488Y (en) | 2002-12-18 |
Family
ID=33685032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202512 Expired - Fee Related CN2526488Y (en) | 2002-01-25 | 2002-01-25 | Roller bit for carburizing reinforced runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526488Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131784A (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | Drill bit cone processing process |
-
2002
- 2002-01-25 CN CN 02202512 patent/CN2526488Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131784A (en) * | 2014-06-30 | 2014-11-05 | 成都高普石油工程技术有限公司 | Drill bit cone processing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN LILIN DRILL CO., LTD. Free format text: FORMER OWNER: LILIN PETROLEUM MACHINERY CO., LTD., TIANJIN CITY Effective date: 20050805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: LILIN PETROLEUM MACHINERY CO., LTD., TIANJIN CITY Free format text: FORMER NAME OR ADDRESS: BOHAI PETROLEUM MACHINERY CO. LTD., TIANJIN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: TIANJIN LILIN PETROLEUM MACHINERY Co.,Ltd. Patentee before: BOHAI PETROLEUM MACHINERY Co. L |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20050805 Address after: 300352 Tianjin city Jinnan District gegu three Patentee after: TIANJIN LILIN BIT Co.,Ltd. Address before: 300352 Tianjin city Jinnan District gegu three Patentee before: TIANJIN LILIN PETROLEUM MACHINERY Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021218 Termination date: 20100125 |