CN2605376Y - Dual-sliding bearing bit wich clasp - Google Patents
Dual-sliding bearing bit wich clasp Download PDFInfo
- Publication number
- CN2605376Y CN2605376Y CN 03233570 CN03233570U CN2605376Y CN 2605376 Y CN2605376 Y CN 2605376Y CN 03233570 CN03233570 CN 03233570 CN 03233570 U CN03233570 U CN 03233570U CN 2605376 Y CN2605376 Y CN 2605376Y
- Authority
- CN
- China
- Prior art keywords
- snap ring
- gear wheel
- floating bushing
- bearing
- ring
- 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
Links
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- Gears, Cams (AREA)
Abstract
A double slide bearing bit with a snap ring is used for the extraction of petroleum and natural gas and the probe of the geological drill, and relates to the manufacturing technology field of the bearing bit of the petroleum and natural gas. The utility model changes the technology formed by directly pairing the axle journal and the wheel hole, and provides a double sliding bearing bit with a snap ring which is characterized in that a floating ring is arranged between the claw the roller cone and the axle journal; a concave groove in the middle of the claw the roller cone is provided with a dimidiate clip ring, which enables the utility model has the advantages of having a low-speed self bearing bypass line at high rotary speed, raising the work life of the bearing, and effectively preventing the roller cone from falling into well.
Description
Technical field: a kind of two slide bearing bits of band clasp, be used for oil and gas exploitation and geological drilling usefulness, relate to the manufacturing technology field of oil-gas drilling drill bit.
Background technology: it connects the sliding bearing pair of gear wheel and tooth pawl rock bit of the prior art, generally be directly to match with axle journal and wheel hole to form, its shortcoming is: friction factor is bigger, only be adapted to low-speed heave-load, the relative motion linear velocity is big between the bearing pair when drill speed is higher, cause the temperature rise between the bearing pair big, the greasy property of drill bit lubricating grease worsens and shortens the life-span of macro-axis rubber seal, the wearing and tearing of aggravation bearing pair, finally cause the inefficacy in advance of bearing pair, and when bearing pair and steel ball excessive wear, the fall serious accident of well of gear wheel also can take place, on the other hand, existing plain bearing drill bit adopts steel ball to keep cone structure, occupy the fitting face length of limited bearing pair, strengthened the bearing pair specific pressure, shortened the working life of bearing pair.
The purpose of invention: the purpose of this utility model provides a kind of two slide bearing bits of band clasp, a floating bushing is set between gear claw journal and gear wheel hole, a snap ring of splitting is set in the gear claw journal central slot, make its can be under high rotating speed self bearing pair linear velocity low, improve the bearing working life-span, effectively prevent the gear wheel well that falls.
Summary of the invention: the purpose of this utility model is achieved in that when adopting two sliding bearing pair, between the gear wheel hole of the gear claw journal of tooth pawl 6 and gear wheel 1, a floating bush 4 is set, the inside and outside circle of floating bush 4 forms two pairs of sliding bearing pairs with gear claw journal and gear wheel hole by matched in clearance respectively, in the gear claw journal groove, be provided with one and split snap ring 3, to prevent cone shedding, the utility model has the advantages that: a bearing pair of original common sliding pair is become two bearing pairs, originally the tangential linear velocity of a bearing pair decomposes on two bearing pairs, the tangential linear velocity that each bearing pair of floating bush 4 is installed is reduced to half of original plain bearing pair, under identical drilling condition, the working speed of two slide bearing bits can improve more than 20%.
Description of drawings:
Fig. 1 is a cut-away structure chart of the present utility model.
Fig. 2 is the amplification plan view of floating bushing 4 among the utility model Fig. 1.
Fig. 3 is the enlarged diagram of snap ring 3 among the utility model Fig. 1.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing: the utility model is by gear wheel 1, tooth 2, snap ring 3, floating bushing 4, sealing ring 5, tooth pawl 6 constitutes, a floating bushing 4 is set between gear claw journal and gear wheel hole, floating bushing 4 is a metal cover that has groove 7, the A/F of its groove 7 is 0.5-2mm, and one section chamfering 8 is arranged respectively on the both sides internal and external circumference of floating bushing 4 grooves, and the length of chamfering 8 is 2-5mm, the degree of depth is 0.1-0.5mm, chamfering 8 can be a circular arc, also can be straight line, and the inside and outside circle of floating bushing 4 forms two pairs of sliding bearing pairs with gear claw journal and gear wheel hole by matched in clearance respectively, the axle journal of the endoporus of floating bushing 4 and tooth pawl 6, the outer garden of floating bushing 4 and gear wheel 1 endoporus are matched in clearance, and its gap is between 0.01-0.15mm; In the gear claw journal groove, be provided with a snap ring 3, to prevent cone shedding, snap ring 3 is the divided ring of two semi-rings, snap ring 3 can be by an annulus to half-open, also can be that polylith is opened, the steel-tooth cone that gear wheel 1 of the present utility model can be various profiles also can be an insert cone, snap ring 3 inner surface brush plating silver, floating bushing 4 inner and outer round surface brush platings silver or silver-colored indium, sealing ring 5 is arranged between gear wheel 1 and tooth pawl 6 bearing pairs, the macropore step surface of snap ring 3 and tooth pawl 6 axle journal annular grooves upper end periphery matched in clearance, form sliding pair, work to support gear wheel 1, snap ring 3 is provided with locking groove, gear wheel 1 is before assembling, snap ring 3 inner convex platforms are embedded in the tooth pawl 6 axle journal grooves earlier, keep the relative position of gear wheel 1 on tooth pawl 6, and with in special assembling tool insertion snap ring 3 locking grooves, by rotating gear wheel 1 gear wheel 1 endoporus screw thread is tightened on the snap ring 3 outer garden screw threads, snap ring 3 after the assembling is solidly fixed with gear wheel 1, annular groove on snap ring 3 inner convex platforms and tooth pawl 6 axle journals axially and radially all be in matched in clearance, for preventing that drill bit gear wheel 1 in the middle of the course of work from releasing, when assembling, before gear wheel 1 is screwed into, thread locking adhesive is smeared at the place at screw thread, after screw thread is tightened, with special tool embryo is beaten in the interior rib-loop part on the gear wheel.
Claims (3)
1. two slide bearing bits of a band clasp, by gear wheel, tooth, snap ring, floating bushing, sealing ring and tooth pawl constitute, and it is characterized in that:
A., a floating bush 4 is set between described gear claw journal and gear wheel hole, and floating bushing 4 is a metal cover that has groove 7, and the A/F of its groove 7 is 0.5-2mm;
B., one section chamfering 8 is arranged respectively on the both sides internal and external circumference of floating bushing 4 grooves, and the length of chamfering 8 is 2-5mm, and the degree of depth is 0.1-0.5mm;
C. the outer garden of the axle journal of the endoporus of floating bushing 4 and tooth pawl 6, floating bushing 4 and gear wheel 1 endoporus are matched in clearance, and its gap is at 0.01-0.15mm;
D. be provided with a snap ring 3 in the gear claw journal groove, snap ring 3 is the divided ring of two semi-rings, and snap ring 3 can also can be that polylith is opened by an annulus to half-open.
2. two slide bearing bits of a kind of band clasp according to claim 1, it is characterized in that: the chamfering on the both sides internal and external circumference of described floating bushing 4 grooves, its chamfering can be circular arcs, also can be straight lines,
3. two slide bearing bits of a kind of band clasp according to claim 1, it is characterized in that: described gear wheel 1 can be the steel-tooth of various profiles, also can be insert cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233570 CN2605376Y (en) | 2003-03-18 | 2003-03-18 | Dual-sliding bearing bit wich clasp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233570 CN2605376Y (en) | 2003-03-18 | 2003-03-18 | Dual-sliding bearing bit wich clasp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605376Y true CN2605376Y (en) | 2004-03-03 |
Family
ID=34165880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03233570 Expired - Fee Related CN2605376Y (en) | 2003-03-18 | 2003-03-18 | Dual-sliding bearing bit wich clasp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605376Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892807A (en) * | 2010-08-10 | 2010-11-24 | 天津立林石油机械有限公司 | Cone bit for high-speed and high-temperature drilling |
| CN101787857B (en) * | 2009-01-23 | 2012-07-25 | 中成新星油田工程技术服务股份有限公司 | Cone reamer |
| CN104453719A (en) * | 2014-11-20 | 2015-03-25 | 西南石油大学 | Bushing button bit and machining method thereof |
| CN111021963A (en) * | 2020-01-10 | 2020-04-17 | 济源华新石油机械有限公司 | Gear wheel interlocking bearing |
-
2003
- 2003-03-18 CN CN 03233570 patent/CN2605376Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787857B (en) * | 2009-01-23 | 2012-07-25 | 中成新星油田工程技术服务股份有限公司 | Cone reamer |
| CN101892807A (en) * | 2010-08-10 | 2010-11-24 | 天津立林石油机械有限公司 | Cone bit for high-speed and high-temperature drilling |
| CN104453719A (en) * | 2014-11-20 | 2015-03-25 | 西南石油大学 | Bushing button bit and machining method thereof |
| CN111021963A (en) * | 2020-01-10 | 2020-04-17 | 济源华新石油机械有限公司 | Gear wheel interlocking bearing |
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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: 20040303 |