CN2375753Y - Single-roller bit - Google Patents
Single-roller bit Download PDFInfo
- Publication number
- CN2375753Y CN2375753Y CN 98219946 CN98219946U CN2375753Y CN 2375753 Y CN2375753 Y CN 2375753Y CN 98219946 CN98219946 CN 98219946 CN 98219946 U CN98219946 U CN 98219946U CN 2375753 Y CN2375753 Y CN 2375753Y
- Authority
- CN
- China
- Prior art keywords
- tooth
- drill bit
- gauge teeth
- wear
- teeth
- 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
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- Earth Drilling (AREA)
Abstract
The utility model single roller cone bit which is suitable for the drilling operation of petroleum departments, mine departments and geology departments. The utility model is composed of a bit body (1), a gage block (2), an active cutting gauge tooth (4), a passive gage tooth (3), a spherical roller cone (6), etc., wherein, the spherical roller cone (6) is discontinuously or continuously inlaid with abrasion-proof teeth so that the abrasion-proof performance of a cutting system of the bit is matched with the service life of a bearing. The bit body (1) is provided or welded with the gage block (2) simultaneously, and the gage block (2) is inlaid with the ordinary hard alloy or abrasion-proof active cutting gage tooth (4) and the passive diameter protecting tooth (3) to enhance the gauge of the bit. The single roller cone bit can obviously improve the footage of bits, and can reduce the cost of drilling wells.
Description
The utility model relates to oil, mine and geological drilling single-cone rotary drill bit.
Present oil, single dental drill head that mine and geological drilling are selected, partly form by bit body, spherical gear wheel, tooth, seal, lubricating system etc., tooth is connected with the interference fit form with spherical gear wheel, and the used material of tooth is identical, is Hardmetal materials, because tooth wear is inhomogeneous during drill bit work, zone (contact zone forever) tooth wear that contacts for a long time with the shaft bottom is very fast, and the drill teeth life-span is not complementary, and has influenced the drilling depth of drill bit.Very easily make bit body frayed after the tooth wear, cause undergauge, caused difficulty for further creeping into after pulling out of hole.
The purpose of this utility model provides a kind of single-cone rotary drill bit, the wear-resisting tooth of gear wheel band of this single-cone rotary drill bit, bit body are protected footpath piece band and are initiatively cut gauge teeth and passive gauge teeth, with the working life of raising tooth and the guarantor footpath effect of drill bit, the drilling depth of drill bit is improved.
For achieving the above object, provide a kind of single-cone rotary drill bit according to the utility model, partly form by bit body, spherical gear wheel, tooth, seal, lubricating system etc., tooth is connected with the interference fit form with drill bit, it is characterized in that the continuous or wear-resisting tooth of interruption layout on the bit cone, band is protected the footpath piece on the bit body, arranges on the piece of guarantor footpath and initiatively cuts gauge teeth and passive gauge teeth.Continuous or the wear-resisting tooth of interruption layout of eternal contact zone of gear wheel and interruption contact zone tooth row.Wear-resisting tooth is the polycrystal diamond hard alloy composite teeth.Wear-resisting tooth is diamond sinter completely.Bit body is protected the footpath piece and is directly processed by bit body, and protecting the footpath number of blocks is 2～5.Bit body is protected and directly is welded on the bit body after the footpath piece can be processed separately.Bit body is protected and to be arranged ordinary rigid alloy or wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting on the piece of footpath.The angle a that initiatively cuts gauge teeth center line and bit body guarantor footpath piece tangential direction is 0～90 degree.Initiatively cutting the high grinningly H of gauge teeth is 2～20mm.The high grinningly L of passive cutting gauge teeth is less than initiatively cutting the high grinningly H of gauge teeth.Wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting is for continuously or be interrupted the polycrystalline diamond of arranging and put carbide alloy and put composite teeth.Wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting is for continuously or be interrupted then stone sintered body of the gold completely arranged.
The utility model is achieved by following technical proposals: 1. and on the gear wheel cloth flank of tooth of the eternal contact zone in single-cone rotary drill bit and shaft bottom, be interrupted or arrange wear-resisting tooth continuously, increase the abrasion resistance of drill bit part easy to wear, thus the application life of improving drill bit; 2. protect the footpath carrying out secondary on the single-cone rotary drill bit: promptly design gauge cutter in the interruption contact zone in gear wheel and shaft bottom, on gauge cutter, be interrupted or arrange wear-resisting tooth continuously, carry out one-level and protect directly.On bit body, increase to protect the footpath piece, protect and be interrupted on the piece of footpath or arrange common or wear-resisting gauge teeth and the passive gauge teeth of initiatively cut continuously, carry out secondary and protect directly.
Because such scheme has solved the single-cone rotary drill bit tooth problem that easily lost efficacy with the guarantor footpath easy to wear effectively, under suitable increase drill bit condition of cost, drilling life of bit and result of use significantly improve, and the integrated cost of drilling well reduces significantly.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is a bit body B-B generalized section.
Among the figure: 1. bit body; 2. protect the footpath piece; 3. passive gauge teeth; 4. initiatively cut gauge teeth; 5. the eternal contact zone F tooth row in spherical gear wheel and shaft bottom; 6. spherical gear wheel; 7. the interruption contact zone G tooth row in spherical gear wheel and shaft bottom.
In Fig. 1, Fig. 2, on the spherical gear wheel 6 with the tooth of interference fit form two types in insert ordinary rigid carbide button or wear-resisting tooth on the interruption contact zone G tooth row 7 in the eternal contact zone in spherical gear wheel and shaft bottom F tooth row 5 and spherical gear wheel and shaft bottom.In the present embodiment, wear-resisting tooth is installed in the eternal contact zone F tooth row 5 in spherical gear wheel 6 and shaft bottom continuously, work to strengthen the cutting system abrasion resistance, wear-resisting tooth is a conisphere shape polycrystal diamond hard alloy composite teeth, also can be the impregnated tooth of diamond sinter, or diamond sinter completely; Gear in the interruption contact zone G tooth row 7 on the spherical gear wheel 6 changes and acts on the shaft bottom, has the effect of the footpath of guarantor, is interrupted on these tooth rows and arranges wear-resisting tooth, to strengthen the guarantor footpath function of gear wheel, protects the footpath effect in one-level.On the bit body 1 directly processing or welding protect footpath piece 2, protect footpath piece 2 and become 2～5 according to the bit size size design, present embodiment is 3, protects on the piece 2 of footpath the passive gauge teeth 3 of insert and initiatively cuts gauge teeth 4, carries out secondary and protects directly.Use the soft or hard on stratum according to drill bit, initiatively cut the center line of gauge teeth 4 and select in 0～90 degree with the angle a that protects footpath piece tangent line, a is 90 degree in the present embodiment; The high grinningly H that initiatively cuts gauge teeth 4 selects in 2～20mm, and present embodiment H is 6mm, and it is in order to reduce the drilling well resistance that insert initiatively cuts gauge teeth.The high grinningly L that protects the passive gauge teeth 3 on the piece 2 of footpath is less than the high grinningly H that initiatively cuts gauge teeth 4, to prevent after initiatively cutting the gauge teeth fracture, the inefficacy of bit gauge protection, present embodiment L is 1.7mm, passive gauge teeth can be common carbide alloy, also can be interrupted or arrange wear-resisting tooth continuously, as forward type polycrystal diamond hard alloy composite teeth, the impregnated tooth of diamond sinter, or diamond sinter completely; Initiatively cut gauge teeth 4 and can be common carbide alloy.Also can be interrupted or arrange wear-resisting tooth continuously, as conisphere shape polycrystal diamond hard alloy composite teeth, the impregnated tooth of diamond sinter, or diamond sinter completely.
Claims (12)
1. single-cone rotary drill bit, partly form by bit body (1), spherical gear wheel (6), tooth, seal, lubricating system etc., tooth is connected with the interference fit form with drill bit, it is characterized in that the continuous or wear-resisting tooth of interruption layout on the bit cone, bit body (1) is gone up band guarantor footpath piece (2), and guarantor's footpath piece (2) is gone up layout and initiatively cut gauge teeth (4) and passive gauge teeth (3).
2. drill bit according to claim 1 is characterized in that the eternal contact zone of gear wheel (F) and is interrupted the continuous or wear-resisting tooth of interruption layout of contact zone (G) tooth row.
3. drill bit according to claim 2 is characterized in that wear-resisting tooth is the polycrystal diamond hard alloy composite teeth.
4. drill bit according to claim 2 is characterized in that wear-resisting tooth is diamond sinter completely.
5. drill bit according to claim 1, piece is directly processed by bit body to it is characterized in that protecting directly by bit body, and protecting the footpath number of blocks is 2～5.
6. drill bit according to claim 1 is characterized in that directly being welded on the bit body after bit body guarantor footpath piece can be processed separately.
7. drill bit according to claim 1 is characterized in that bit body is protected to arrange ordinary rigid alloy or wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting on the piece of footpath.
8. drill bit according to claim 7, it is characterized in that initiatively cutting gauge teeth center line and bit body, to protect the angle a of footpath piece tangential direction be 0～90 degree.
9. drill bit according to claim 7, it is characterized in that initiatively cutting the high grinningly H of gauge teeth is 2～20mm.
10. drill bit according to claim 7 is characterized in that the high grinningly L of passive cutting gauge teeth is less than initiatively cutting the high grinningly H of gauge teeth.
11. drill bit according to claim 7 is characterized in that wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting is for continuously or be interrupted the polycrystalline diamond of arranging and put carbide alloy and put composite teeth.
12. drill bit according to claim 7 is characterized in that wear-resisting gauge teeth and the passive gauge teeth of initiatively cutting is for continuously or be interrupted the diamond sinter of arranging completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98219946 CN2375753Y (en) | 1998-03-19 | 1998-09-10 | Single-roller bit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98235440.1 | 1998-03-19 | ||
| CN98235440 | 1998-03-19 | ||
| CN 98219946 CN2375753Y (en) | 1998-03-19 | 1998-09-10 | Single-roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2375753Y true CN2375753Y (en) | 2000-04-26 |
Family
ID=34065996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98219946 Expired - Lifetime CN2375753Y (en) | 1998-03-19 | 1998-09-10 | Single-roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2375753Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091531A1 (en) * | 2002-04-23 | 2003-11-06 | Kingdream Public Ltd. Co. | A roller bit with a journal pin offset from the central axis thereof |
| CN106522845B (en) * | 2016-11-23 | 2018-04-20 | 青岛***通科技有限公司 | A kind of gauge device for geological drilling |
| CN109339709A (en) * | 2018-12-04 | 2019-02-15 | 长江大学 | It is novel to bore PDC cutter composite drill bit again |
-
1998
- 1998-09-10 CN CN 98219946 patent/CN2375753Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003091531A1 (en) * | 2002-04-23 | 2003-11-06 | Kingdream Public Ltd. Co. | A roller bit with a journal pin offset from the central axis thereof |
| US7299887B2 (en) | 2002-04-23 | 2007-11-27 | Kingdream Public Ltd. Co. | Roller bit with a journal pin offset from the central axis thereof |
| CN106522845B (en) * | 2016-11-23 | 2018-04-20 | 青岛***通科技有限公司 | A kind of gauge device for geological drilling |
| CN109339709A (en) * | 2018-12-04 | 2019-02-15 | 长江大学 | It is novel to bore PDC cutter composite drill bit again |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: DRILL BIT FACTORY, JIANGHAN PETROLEUM ADMINISTRATION TO: HANJIANG PETROLEUM DRILL STOCK CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jianghan Petroleum Drilling Bit Co., Ltd. Patentee before: Drill Bit Factory, Jianghan Petroleum Administration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |