CN202646358U - High-efficiency and wear-resistant radial bearing for screw drilling tool - Google Patents
High-efficiency and wear-resistant radial bearing for screw drilling tool Download PDFInfo
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- CN202646358U CN202646358U CN 201220271859 CN201220271859U CN202646358U CN 202646358 U CN202646358 U CN 202646358U CN 201220271859 CN201220271859 CN 201220271859 CN 201220271859 U CN201220271859 U CN 201220271859U CN 202646358 U CN202646358 U CN 202646358U
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- radial bearing
- radially
- inner sleeve
- overcoat
- radial
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Abstract
The utility model discloses a high-efficiency and wear-resistant radial bearing for a screw drilling tool. The high-efficiency and wear-resistant radial bearing is characterized by comprising an upper radial bearing and a lower radial bearing, wherein the upper radial bearing comprises an upper radial outer sleeve and an upper radial inner sleeve; the upper radial outer sleeve is matched with the upper radial inner sleeve; the lower radial bearing comprises a lower radial outer sleeve and a lower radial inner sleeve; the lower radial outer sleeve is matched with the lower radial inner sleeve; and hard alloy wear-resistant layers are respectively arranged on the inner wall of the upper radial outer sleeve, the outer wall of the upper radial inner sleeve, the inner wall of the lower radial outer sleeve and the outer wall of the lower radial inner sleeve. The high-efficiency and wear-resistant radial bearing disclosed by the utility model has the advantages that due to the arrangement of the wear-resistant layers and a graphite block, the wear resistance and the reliability of the radial bearing are improved, the possibilities of journal sticking and shaft cutting are low and the working efficiency of the screw drilling tool is greatly increased.
Description
Technical field
The utility model relates to a kind of oil apparatus, relate to specifically a kind of in the petroleum production process helicoid hydraulic motor high-efficiency abrasion-proof radial bearing, belong to the oil exploration equipment field.
Background technique
At present, helicoid hydraulic motor is one of most widely used mud motor in current oil, the gas drilling, not only indispensable in directional well, Horizontal Well Drilling well operations, and along with the popularization of composite drill, helicoid hydraulic motor becomes one of indispensable downhole tool of full well section speed-raising just gradually.The use of helicoid hydraulic motor be unable to do without radial bearing, and a series of heat treatment process of the general process of the Bearing Steel of radial bearing is to improve its wear resistance.But because the drilling process of petroleum production carries out in mud, the work under bad environment of radial bearing causes that radial bearing is easy to wear, the life-span is low, seize often occurs and cuts the axle phenomenon.
The model utility content
Problem to be solved in the utility model is for above problem, the radial bearing for screw drilling tool of a kind of high-efficiency abrasion-proof, long service life is provided, the inwall of the upper radially overcoat of bearing, on radially the outer wall, inwall and the lower radially outer wall of inner sleeve of lower radially overcoat of inner sleeve be respectively equipped with hard alloy abrasion-resistant layer and graphite layer, greatly improved the wear resistance of bearing.
For addressing the above problem, the technological scheme that the utility model adopts is:
A kind of helicoid hydraulic motor high-efficiency abrasion-proof radial bearing comprises radial bearing and lower radial bearing, and upper radial bearing comprises radially overcoat and upper radially inner sleeve, described on radially overcoat match with upper radially inner sleeve;
Described lower radial bearing comprises lower radially overcoat and lower radially inner sleeve, and described lower radially overcoat matches with lower radially inner sleeve;
On described radially the inwall of overcoat, on radially the outer wall, inwall and the lower radially outer wall of inner sleeve of lower radially overcoat of inner sleeve are respectively equipped with hard alloy abrasion-resistant layer.
Cemented carbide is take the carbide of high hardness refractory metal (WC, TiC) micron powder as main component, take cobalt (Co) or nickel (Ni), molybdenum (Mo) as Bond, and the sintered metal product that sintering forms in vacuum furnace or hydrogen reducing furnace.A series of premium properties, particularly its high hardness and wear resistance such as cemented carbide has that hardness is high, wear-resisting, intensity and toughness are better, heat-resisting, corrosion-resistant even also substantially remain unchanged, still have very high hardness in the time of 1000 ℃ under 500 ℃ temperature.Cemented carbide is widely used as tool material, such as lathe tool, milling cutter, planing tool, drill bit, boring cutter etc., be used for cutting cast iron, non-ferrous metal, plastics, chemical fibre, graphite, glass, stone material and common iron, also can be used for cutting the difficult to machine materials such as refractory steel, stainless steel, high manganese steel, tool steel.
As a kind of improvement:
Described hard alloy abrasion-resistant layer is that the horminess fastening gold bar blocks such as YW1, YW2, YT30, YT15, YT14, YT5, YG3X, YG3, YG6, YG6A, YG6X, YG8 are inlayed and formed.
Described horminess fastening gold bar block be shaped as long strip.
Further, be filled with graphite block between the described horminess fastening gold bar block.
Graphite matter is soft, black gray expandable; Greasy feeling is arranged, can pollute paper.Hardness is 1～2, and vertically its hardness of increase with impurity can increase to 3～5.Proportion is 1.9～2.3.The specific surface area scope concentrates on 1-20m2/g, and under the starvation condition, its fusing point is one of mineral of heatproof more than 3000 ℃.It can conduct electricity, heat conduction.
Wherein, described YW1 red hardness is better, can bear certain impact load, is preferably alloy of versatility;
The YW2 wear resistance is only second to YW1, and single its working strength is higher, can bear larger impact load;
The cutting speed of YT30 wear resistance and operation is high than YT15, but the working strength toughness is relatively poor;
The YT15 wear resistance is better than the YT15 alloy, but toughness is poor than YT5;
The YT14 working strength is high, and shock resistance and shock resistance are good, and closely inferior to the YT5 alloy, but wear resistance is good than YT5;
YT5 is intensity in tungsten-cobalt-titanium alloy, and shock resistance and shock resistance are best, but wear resistance is relatively poor;
YG3X wear resistance in tungsten-cobalt-titanium alloy is best, but impact toughness is relatively poor;
The YG3 wear resistance is only second to YG3X, and impact and vibrations are responsive;
The YG6 wear resistance is higher, but is lower than YG3, shock resistance and vibrations than YG3X for good;
YG6A belongs to the fine grained alloy, and wear resistance is good;
YG6X belongs to the fine grained diamondite, and its wear resistance is high than YG6, and working strength is similar to the YG6 alloy;
The YG8 working strength is high, shock resistance, and shock resistance is better, but the cutting speed of wear resistance and permission is lower; YG8 is the W-Co kind material, and wear resistance is good, and working strength and impact toughness are better than YG6, can be widely used in environmental conditions badly and require the high occasion of wear resistance, and without heat treatment, inside and outside hardness uniformity.
The utility model is by taking above technological scheme, the inwall of upper radially overcoat, on radially the outer wall, inwall and the lower radially outer wall of inner sleeve of lower radially overcoat of inner sleeve are respectively equipped with wearing layer and graphite block, improve wear resistance and the reliability of radial bearing, be difficult for seize occuring and cutting the axle phenomenon, greatly improved the working efficiency of helicoid hydraulic motor.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing 1 be among the utility model embodiment on the structural representation of overcoat radially;
Accompanying drawing 2 is the right elevation of accompanying drawing 1;
Accompanying drawing 3 be among the utility model embodiment on the structural representation of inner sleeve radially;
Accompanying drawing 4 is the lower radially structural representation of overcoat among the utility model embodiment;
Accompanying drawing 5 is the lower radially structural representation of inner sleeve among the utility model embodiment;
Among the figure: overcoat radially on the 1-; The 2-wearing layer; Inner sleeve radially on the 3-; The 4-horminess fastening gold bar block; Overcoat radially under the 5-; Inner sleeve radially under the 6-; The 7-graphite block.
Embodiment
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, a kind of helicoid hydraulic motor high-efficiency abrasion-proof radial bearing comprises radial bearing and lower radial bearing, and upper radial bearing comprises radially overcoat 1 and upper radially inner sleeve 3, described on radially overcoat 1 match with upper radially inner sleeve 3.
As shown in Figure 4 and Figure 5, described lower radial bearing comprises lower radially overcoat 5 and lower radially inner sleeve 6, and described lower radially overcoat 5 matches with lower radially inner sleeve 6.
On described radially the inwall of overcoat 1, on radially the outer wall, inwall and the lower radially outer wall of inner sleeve 6 of lower radially overcoat 5 of inner sleeve 3 are respectively equipped with wearing layer 2.
Described wearing layer 2 is inlayed by YG8 horminess fastening gold bar block 4 and is formed, described YG8 horminess fastening gold bar block 4 be shaped as the long strip structure, be filled with graphite block 7 between the described horminess fastening gold bar block 4.
YG8 is the W-Co kind material, and main component is Tungsten carbite and binder cobalt, and wherein the percentage composition of cobalt is 8%, and all the other are the W-Co kind cemented carbide of Tungsten carbite.
Wear resistance is good, working strength and impact toughness are better than YG6, belong to senior pattern-making material, stretching die under the very large condition of stress, be suitable for drawing diameter less than 50 millimeters steel, nonferrous metal silk and alloy wire thereof or bar also are used for little stamping die and the rivet upsetting die of the less work loads of size, without heat treatment, inside and outside hardness uniformity.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. helicoid hydraulic motor high-efficiency abrasion-proof radial bearing, it is characterized in that: comprise radial bearing and lower radial bearing, upper radial bearing comprises radially overcoat and upper radially inner sleeve, described on radially overcoat match with upper radially inner sleeve;
Described lower radial bearing comprises lower radially overcoat and lower radially inner sleeve, and described lower radially overcoat matches with lower radially inner sleeve;
On described radially the inwall of overcoat, on radially the outer wall, inwall and the lower radially outer wall of inner sleeve of lower radially overcoat of inner sleeve are respectively equipped with hard alloy abrasion-resistant layer.
2. radial bearing according to claim 1 is characterized in that: described hard alloy abrasion-resistant layer is that horminess fastening gold bar block is inlayed and formed.
3. radial bearing according to claim 2 is characterized in that: described horminess fastening gold bar block be shaped as long strip.
4. it is characterized in that: be filled with graphite block between the described horminess fastening gold bar block according to claim 2 or 3 described radial bearings.
5. radial bearing according to claim 4 is characterized in that: described cemented carbide is a kind of among YW1, YW2, YT30, YT15, YT14, YT5, YG3X, YG3, YG6, YG6A, YG6X or the YG8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271859 CN202646358U (en) | 2012-06-11 | 2012-06-11 | High-efficiency and wear-resistant radial bearing for screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271859 CN202646358U (en) | 2012-06-11 | 2012-06-11 | High-efficiency and wear-resistant radial bearing for screw drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN202646358U true CN202646358U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271859 Expired - Fee Related CN202646358U (en) | 2012-06-11 | 2012-06-11 | High-efficiency and wear-resistant radial bearing for screw drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI580871B (en) * | 2016-03-23 | 2017-05-01 | The Method and Structure of Extruded Bearing |
-
2012
- 2012-06-11 CN CN 201220271859 patent/CN202646358U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI580871B (en) * | 2016-03-23 | 2017-05-01 | The Method and Structure of Extruded 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: 20130102 Termination date: 20130611 |