CN2454521Y - Slip-in structure gear-wheel - Google Patents
Slip-in structure gear-wheel Download PDFInfo
- Publication number
- CN2454521Y CN2454521Y CN 00232441 CN00232441U CN2454521Y CN 2454521 Y CN2454521 Y CN 2454521Y CN 00232441 CN00232441 CN 00232441 CN 00232441 U CN00232441 U CN 00232441U CN 2454521 Y CN2454521 Y CN 2454521Y
- Authority
- CN
- China
- Prior art keywords
- oil groove
- stationary bushing
- inside spin
- mosaic
- circular surfaces
- 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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Abstract
The utility model relates to a roller cone bit which can be widely used in the petroleum drilling field, particularly a roller cone whose roller cone bit is provided with an inserted structure, comprising a roller cone. A fixed lining is inserted into the axle hole of the roller cone. The utility model is characterized in that the surface of the inner circle of the fixed lining is provided with an inter screw oil groove. The fixed lining of the utility model can be made of high-speed steel, and the intensifying process is carried out on the surface of the high-speed steel. The outer surface of the fixed lining can be provided with an outer screw oil groove, and thus, the both ends of the inner and the outer screw oil grooves can be communicated with each other. The utility model can improve the lubrication state of the bearing of the roller cone, increase the rotational speed, strengthen the abrasion resistance, and extend the service life of the roller cone bit.
Description
The utility model relates to a kind of rock bit that is widely used in the oil drilling field, relates in particular to the gear wheel with structure of mosaic on the rock bit.
Rock bit mainly is made of gear wheel and the bit leg joint by its bearing position.Existing gear wheel all adopts the low-carbon alloy steel manufacturing, gear wheel must carry out the carburizing and quenching temper, gear wheel endoporus bearing surface also needs the welding-on antifriction alloy, carry out carburizing boronising Combined Processing or welding-on antifriction alloy on the teeth palm bearing surface, though the bearing pair of Xing Chenging can bear certain the pressure of the drill and rotating speed therefrom, but the raising of its rotating speed still is restricted, and incompatible and mud motor is used; Owing to the restriction of gear wheel bearing surface bearing capacity, abrasion resistance is not strong simultaneously, and regular meeting causes drill bit initial failure because of the quick wearing and tearing of bearing surface.In addition, adopt the gear wheel endoporus of welding-on antifriction alloy to be easy to generate crackle, crackle will cause the gear wheel well accident of breaking to the expansion of gear wheel matrix.Lower for solving the cone bit bearing rotating speed, the problem of abrasion resistance deficiency, a kind of rock bit that all adopts carbide alloy on gear wheel and teeth palm bearing surface has been proposed in the Chinese patent 91204886.7 " hard-alloy roller-type bit with sliding bearings ", but its complex manufacturing, difficulty of processing is very big, and its actual effect is also unsatisfactory.In United States Patent (USP) 4572306, a kind of beryllium-bronze or beryllium nickel alloy processing lining has been proposed, the lining interference is assembled to gear wheel endoporus or the bit leg journel bearing pair as rock bit: there is the journal bearing bit that the ferrous based powder metallurgical lining is pressed into the gear wheel endoporus in Security company, structure of mosaic wants much easy than its activities of welding-on structure, and can improve and improve rotating speed and anti-wear performance, but effect be desirable not to the utmost.
The purpose of this utility model is that providing a kind of at above-mentioned the deficiencies in the prior art can make its rotating speed and the further structure of mosaic gear wheel that improves and improve of abrasion resistance.
The utility model is realized by following technical scheme: include gear wheel 2, be installed with stationary bushing 1 in the axis hole of gear wheel, its difference is to offer inside spin oil groove 4 at the internal circular surfaces of stationary bushing.
Press such scheme, described inside spin oil groove can be the screw type oil groove of equi-spaced apart rotation direction unanimity; Stationary bushing can be made by the high-speed steel class or with the approaching steel of high-speed steel performance and carry out intensive treatment on its surface, makes the stationary bushing surface be covered with the layer of surface strengthening layer.
The utlity model has following advantage: 1, the inside spin oil groove can hold sufficient lubricating grease, improves the lubricating status of bearing, reduces bearing friction moment of torsion, reduces the operating temperature of bearing, thereby improves the rotating speed of gear wheel; 2, the inside spin oil groove has and holds the bits function, can reduce bearing surface and grind the further wearing and tearing to bearing of the abrasive dust that gets off; 3, adopt high-speed steel or the supporting capacity of sliding bearing is strengthened with the made stationary bushing of the approaching material of high-speed steel performance and through surface Hardening Treatment, shock-resistant, wear-resistant, the Acceptable life of bearing is prolonged.
Fig. 1 is the positive view of an embodiment of the utility model.
Fig. 2 is the sectional view of a kind of stationary bushing structure among the utility model embodiment.
Fig. 3 is the elevation of a kind of stationary bushing structure among the utility model embodiment.
Fig. 4 is the sectional view of another kind of stationary bushing structure among the utility model embodiment.
Fig. 5 is the positive view of another embodiment of the utility model.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include a gear wheel 2, in the big axis hole of gear wheel, be installed with a stationary bushing 1 with interference fit, offer the inside spin oil groove 4 of equi-spaced apart rotation direction unanimity at the internal circular surfaces of stationary bushing, for making each bar inside spin oil groove mutual conduction, the top and bottom of stationary bushing offer make that inside spin oil groove and stationary bushing outer round surface be conducted on through hole 6 and lower through-hole 5, outer round surface at stationary bushing offers external spiral oil groove 3, the upper end of external spiral oil groove communicates with the inside spin oil groove of an internal circular surfaces through last through hole, the lower end of external spiral oil groove is through the inside spin oil groove conducting of lower through-hole and another internal circular surfaces, constitute an interior outer oil sump thus and connect continuous total oil circuit from beginning to end, make lubricating grease form a closed circuit, according to circumstances, the inside spin oil groove of internal circular surfaces can be offered the 4-8 bar, lower through-hole 5 can be offered the bottom to stationary bushing, as Fig. 2,3 is described.In addition, offer the inside spin oil groove 4 that runs through mutually with the upper and lower end face at the stationary bushing internal circular surfaces.Stationary bushing is made by high-speed steel, also can select copper alloy or other nonferrous materials manufacturing for use, the internal circular surfaces of stationary bushing carries out surface Hardening Treatment, surface Hardening Treatment can be selected silver-plated, or the Cu-Sn plating is oozed, or PCVD-TiN, or ion injection TiN and sulphonitrocarburizing etc., with the further bearing performance of improving stationary bushing.
The 2nd embodiment of the present utility model as shown in Figure 5, the difference of it and a last embodiment is also to be installed with little stationary bushing 7 in the little axis hole of the bottom of gear wheel 2, offer the inside spin oil groove at little stationary bushing internal circular surfaces, perhaps offer the inside and outside helical oil groove of mutual conduction at the inside and outside circle of little stationary bushing, its structure is identical with the structure of stationary bushing.
Claims (7)
1, a kind of structure of mosaic gear wheel includes gear wheel (2), is installed with stationary bushing (1) in the axis hole of gear wheel, it is characterized in that offering inside spin oil groove (4) at the internal circular surfaces of stationary bushing.
2, by the described structure of mosaic gear wheel of claim 1, it is characterized in that described inside spin oil groove is the screw type oil groove of equi-spaced apart rotation direction unanimity.
3, by claim 1 or 2 described structure of mosaic gear wheels, it is characterized in that stationary bushing makes by the high-speed steel class or with the approaching steel of high-speed steel performance and carry out intensive treatment on its surface, make the stationary bushing surface be covered with the layer of surface strengthening layer.
4, by claim 1 or 2 described structure of mosaic gear wheels, it is characterized in that the internal circular surfaces at stationary bushing offers the inside spin oil groove (4) of equi-spaced apart rotation direction unanimity, the top and bottom of stationary bushing offer make that inside spin oil groove and stationary bushing outer round surface be conducted on through hole (6) and lower through-hole (5), outer round surface at stationary bushing offers external spiral oil groove (3), the upper end of external spiral oil groove communicates with the inside spin oil groove of an internal circular surfaces through last through hole, the lower end of external spiral oil groove constitutes an interior outer oil sump thus and connects continuous total oil circuit from beginning to end through the inside spin oil groove conducting of lower through-hole and another internal circular surfaces.
5, by claim 1 or 2 described structure of mosaic gear wheels, it is characterized in that the inside spin oil groove of internal circular surfaces offers the 4-8 bar.
6, by claim 1 or 2 described structure of mosaic gear wheels, it is characterized in that in the little axis hole of gear wheel (2) bottom, also being installed with little stationary bushing (7), offer the inside spin oil groove at little stationary bushing internal circular surfaces, perhaps offer the inside and outside helical oil groove of mutual conduction at the inside and outside circle of little stationary bushing.
7, by claim 1 or 2 described structure of mosaic gear wheels, it is characterized in that offering the inside spin oil groove (4) that runs through mutually with the upper and lower end face at the stationary bushing internal circular surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232441 CN2454521Y (en) | 2000-11-17 | 2000-11-17 | Slip-in structure gear-wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232441 CN2454521Y (en) | 2000-11-17 | 2000-11-17 | Slip-in structure gear-wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454521Y true CN2454521Y (en) | 2001-10-17 |
Family
ID=33595071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00232441 Expired - Lifetime CN2454521Y (en) | 2000-11-17 | 2000-11-17 | Slip-in structure gear-wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454521Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886523A (en) * | 2010-07-14 | 2010-11-17 | 中国兵器工业第五二研究所 | High-strength and wear-resistant roller bit |
| CN107461155A (en) * | 2017-03-30 | 2017-12-12 | 西南石油大学 | A kind of geothermal exploration drilling well high speed tricone bit |
| CN108219566A (en) * | 2018-01-11 | 2018-06-29 | 嘉兴市中诚自润轴承有限公司 | A kind of high strength copper alloy self-lubricating abrasion-resistant bushing |
| CN114135232A (en) * | 2021-11-30 | 2022-03-04 | 中石化江钻石油机械有限公司 | Bearing insert sleeve of roller bit and preparation method thereof |
| CN115094203A (en) * | 2022-06-24 | 2022-09-23 | 浙江中诚滑动轴承科技有限公司 | Preparation method of multiple composite treatment self-lubricating steel bushing and bushing |
-
2000
- 2000-11-17 CN CN 00232441 patent/CN2454521Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886523A (en) * | 2010-07-14 | 2010-11-17 | 中国兵器工业第五二研究所 | High-strength and wear-resistant roller bit |
| CN107461155A (en) * | 2017-03-30 | 2017-12-12 | 西南石油大学 | A kind of geothermal exploration drilling well high speed tricone bit |
| CN108219566A (en) * | 2018-01-11 | 2018-06-29 | 嘉兴市中诚自润轴承有限公司 | A kind of high strength copper alloy self-lubricating abrasion-resistant bushing |
| CN114135232A (en) * | 2021-11-30 | 2022-03-04 | 中石化江钻石油机械有限公司 | Bearing insert sleeve of roller bit and preparation method thereof |
| CN115094203A (en) * | 2022-06-24 | 2022-09-23 | 浙江中诚滑动轴承科技有限公司 | Preparation method of multiple composite treatment self-lubricating steel bushing and bushing |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101117 Granted publication date: 20011017 |