CN201326386Y - Helical centering edge - Google Patents
Helical centering edge Download PDFInfo
- Publication number
- CN201326386Y CN201326386Y CNU2008202235251U CN200820223525U CN201326386Y CN 201326386 Y CN201326386 Y CN 201326386Y CN U2008202235251 U CNU2008202235251 U CN U2008202235251U CN 200820223525 U CN200820223525 U CN 200820223525U CN 201326386 Y CN201326386 Y CN 201326386Y
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- CN
- China
- Prior art keywords
- spiral
- rib band
- set upright
- inlaid hole
- inlaid
- 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 helical centering edge. A plurality of embedding holes (2) are drilled on the helical centering edge (1) and embedded with rigid alloy blocks. As a plurality of embedding holes are drilled on the helical centering edge and are embedded with the rigid alloy blocks, the helical centering edge can have even abrasion when in use, thereby effectively prolonging the service life of a drilling tool centralizer and lowering use and maintenance costs.
Description
Technical field
The utility model relates to a kind of spiral and sets upright the rib band.
Background technology
At present helicoid hydraulic motor (a kind of positive displacement mud motor) oil creep into and well workover aspect obtain extensive use, and be used to the operation of creeping into of aspects such as geological prospecting, coal-bed gas exploitation, building pipe construction and defence construction, especially be applied to boring special well.In each parts of helicoid hydraulic motor, centralizer is mainly used in the hold angle work in the borehole track control.Because the most close drill bit of centralizer on the power transmission shaft shell, the drilling fluid of complex chemical composition impacts the spiral of centralizer fast and sets upright the rib band under very big pressure, and the irregular borehole wall is also set upright the rib band at continuous grinding spiral simultaneously, and therefore wearing and tearing are very fast.Particularly spiral is set upright regions wear faster of rib band bottom 1/3rd, and usually serious, the hard alloy blocks of this part wearing and tearing come off, and can not use, and upper area can also continue to use long period of time again.During maintenance, such drilling tool but needs to change whole centralizer, has caused unnecessary waste, has strengthened cost burden.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, provide a kind of spiral that is applied on the drilling tool centralizer to set upright the rib band, this spiral is set upright the rib band can be in the process of using, wearing and tearing everywhere evenly, effectively prolong the application life of drilling tool centralizer, reduce and use and maintenance cost.
The purpose of this utility model is achieved through the following technical solutions: a kind of spiral is set upright the rib band, it is characterized in that, described spiral is set upright and is drilled with several inlaid holes on the rib band, is embedded with hard alloy blocks on the inlaid hole.
The interior inlaid hole degree of depth in 1/3 zone, bottom that described spiral is set upright the rib band is 12mm; Other regional inlaid hole degree of depth are 6mm; The interior inlaid hole circumferential and axial in 1/3 zone, bottom that spiral is set upright the rib band all are evenly distributed; The bottom 1/3 extra-regional inlaid hole that spiral is set upright the rib band circumferentially is evenly distributed, axially presses the arithmetic progression spacing and arranges.
Because the most close drill bit of drilling tool centralizer on the power transmission shaft shell, the drilling fluid of complex chemical composition is under very big pressure, the spiral that impacts centralizer is set upright the rib band fast, the irregular borehole wall is also set upright the rib band at continuous grinding spiral simultaneously, therefore wearing and tearing are very fast, particularly spiral is set upright regions wear faster of rib band bottom 1/3rd, and usually this part wearing and tearing is more serious.So mode that inlaid hole of the present utility model has adopted density unevenness, the degree of depth not to wait, with inlaid hole degree of depth in spiral is set upright the zone, bottom 1/3 of rib band is 12mm, other regional depths are 6mm, thereby make the most serious part of wearing and tearing more durable, make that wearing and tearing evenly everywhere, avoided spiral set upright rib band bottom 1/3rd the zone since the serious back of wearing and tearing hard alloy blocks come off, cause can not be again with and change the phenomenon of whole centralizer.
In sum, the beneficial effects of the utility model are: get out several inlaid holes on the rib band by setting upright at spiral, setting-in hard alloy blocks on the inlaid hole, making that this spiral is set upright the rib band can be in the process of using, wearing and tearing everywhere evenly, effectively prolong the application life of drilling tool centralizer, reduce and use and maintenance cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment:
A kind of spiral is as shown in Figure 1 set upright the rib band as can be known, and the utility model spiral is set upright and is drilled with several inlaid holes 2 on the rib band 1, is embedded with hard alloy blocks on the inlaid hole 2; Interior inlaid hole 2 degree of depth in 1/3 zone, bottom that described spiral is set upright rib band 1 are 12mm; Other regional inlaid hole 2 degree of depth are 6mm; Interior inlaid hole 2 circumferential and axial in 1/3 zone, bottom that spiral is set upright rib band 1 all are evenly distributed; The bottom 1/3 extra-regional inlaid hole 2 that spiral is set upright rib band 1 circumferentially is evenly distributed, axially presses the arithmetic progression spacing and arranges.
Because the most close drill bit of drilling tool centralizer on the power transmission shaft shell, the drilling fluid of complex chemical composition is under very big pressure, the spiral that impacts centralizer is set upright rib band 1 fast, the irregular borehole wall is also set upright rib band 1 at continuous grinding spiral simultaneously, therefore wearing and tearing are very fast, particularly spiral is set upright regions wear faster of rib band 1 bottom 1/3rd, and usually this part wearing and tearing is more serious.So mode that inlaid hole 2 of the present utility model has adopted density unevenness, the degree of depth not to wait, with inlaid hole 2 degree of depth in spiral is set upright the zone, bottom 1/3 of rib band 1 is 12mm, other regional depths are 6mm, thereby make the most serious part of wearing and tearing more durable, make that wearing and tearing evenly everywhere, avoided spiral set upright rib band 1 bottom 1/3rd the zone since the serious back of wearing and tearing hard alloy blocks come off, cause can not be again with and change the phenomenon of whole centralizer.
By as can be known above-mentioned, the utility model gets out several inlaid holes 2 by setting upright at spiral on the rib band 1, setting-in hard alloy blocks on the inlaid hole 2, making that this spiral is set upright rib band 1 can be in the process of using, wearing and tearing everywhere evenly, effectively prolong the application life of drilling tool centralizer, reduce and use and maintenance cost.
As mentioned above, just can realize the utility model preferably.
Claims (4)
1, a kind of spiral is set upright the rib band, it is characterized in that, described spiral is set upright and is drilled with several inlaid holes (2) on the rib band (1), and inlaid hole is embedded with hard alloy blocks on (2).
2, a kind of spiral according to claim 1 is set upright the rib band, it is characterized in that, interior inlaid hole (2) degree of depth in 1/3 zone, bottom that described spiral is set upright rib band (1) is 12mm; Other regional inlaid hole (2) degree of depth are 6mm.
3, a kind of spiral according to claim 1 is set upright the rib band, it is characterized in that, interior inlaid hole (2) circumferential and axial in 1/3 zone, bottom that described spiral is set upright rib band (1) all are evenly distributed.
4, a kind of spiral according to claim 1 is set upright the rib band, it is characterized in that, the bottom 1/3 extra-regional inlaid hole (2) that described spiral is set upright rib band (1) circumferentially is evenly distributed, axially presses the arithmetic progression spacing and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202235251U CN201326386Y (en) | 2008-12-19 | 2008-12-19 | Helical centering edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202235251U CN201326386Y (en) | 2008-12-19 | 2008-12-19 | Helical centering edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326386Y true CN201326386Y (en) | 2009-10-14 |
Family
ID=41178359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202235251U Expired - Fee Related CN201326386Y (en) | 2008-12-19 | 2008-12-19 | Helical centering edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326386Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747111A (en) * | 2013-12-26 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Method for improving grinding efficiency of grind shoe and impregnated grind shoe |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
-
2008
- 2008-12-19 CN CNU2008202235251U patent/CN201326386Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747111A (en) * | 2013-12-26 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Method for improving grinding efficiency of grind shoe and impregnated grind shoe |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
| CN107304657B (en) * | 2016-04-19 | 2020-08-07 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Huilingfeng Diamond Bit Co., Ltd. Assignor: Chengdu High-tech Zone Nima Electronic Product Design Work Studio Contract fulfillment period: 2010.1.13 to 2015.1.12 Contract record no.: 2010510000005 Denomination of utility model: Helical centering edge Granted publication date: 20091014 License type: Exclusive license Record date: 20100127 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2010.1.13 TO 2015.1.12; CHANGE OF CONTRACT Name of requester: CHENGDU HUILINGFENG DIAMOND BIT CO.,LTD. Effective date: 20100127 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20101219 |