CN205330557U - Eccentric wheeled antifriction is fallen and is hindered device - Google Patents
Eccentric wheeled antifriction is fallen and is hindered device Download PDFInfo
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- CN205330557U CN205330557U CN201620105731.7U CN201620105731U CN205330557U CN 205330557 U CN205330557 U CN 205330557U CN 201620105731 U CN201620105731 U CN 201620105731U CN 205330557 U CN205330557 U CN 205330557U
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Abstract
The utility model provides an eccentric wheeled antifriction is fallen and is hindered device, be equipped with at least one row of drag reduction wheel assembly on the barrel, every row at least including three drag reduction wheel assembly, form the contained angle between drag reduction wheel assembly cross -section and the cylinder axis, assembly protrusion in the surface of barrel is taken turns to the drag reduction, drag reduction wheel assembly is the column, drag reduction wheel assembly axis is two antarafacial straight lines with cylinder axis, a plurality of drag reductions wheel assembly projection on perpendicular to cylinder axis's cross -section formation drag reduction wheel assembly projection cross -section, the projection of adjacent two drag reductions wheel assembly is rotational symmetry with cylinder axis, drag reduction wheel assembly axis is the acute angle with the cylinder axis angulation to it is unanimous for the cylinder axis incline direction. Send the in -process to at the drilling string, drag reduction wheel assembly and wall of a well contact, it is rotatory to make drag reduction wheel assembly take place, turns into the sliding friction of the wall of a well and drilling string the rolling friction of the wall of a well and drag reduction wheel assembly, the drilling string axial is sent to and the rotation in a circumferential direction, and it is rotatory to drive drag reduction wheel assembly, the reduce friction resistance.
Description
Technical field
This utility model relates to a kind of oil and gas industry drilling engineering technical field, particularly a kind of eccentric wheel type antifriction device。
Background technology
In oil and gas industry, horizontal well and extended reach well have obvious advantage in Oil/gas Well development & construction process, and thus derive multi-lateral well technology。Horizontal well has increase drainage area, improves oil well productivity, reduces the advantages such as unit technical costs。But in net horizontal section, drill string couches on the borehole wall, the borehole wall is produced great normal pressure by drill string own wt, causes producing great frictional resistance between drill string and the borehole wall, seriously hinders drill string and is sent into and drill bit pressure。Horizontal section length is more long, and the borehole wall is more big to the frictional resistance of drill string, and drill string very easily occurs flexing to deform at horizontal segment, seriously constrains horizontal segment and creeps into length。
The good antifriction instrument of result of use is hydroscillator both at home and abroad at present, its operation principle is in that the periodic relative motion utilizing dynamic valve collar and quiet valve collar, change drilling fluid flow channels, produce periodic water hammer, make the dither of drill string generating period, thus the static friction between horizontal segment drill string and the borehole wall being changed into dynamic friction, reducing frictional resistance, helping horizontal segment drill string to be sent into。But, drill string has also been created necessarily injury by the dither that hydroscillator produces, and drilling-fluid circulation system be it is also proposed higher technology requirement by the surge pressure that water hammer produces。
Utility model content
This utility model provides a kind of eccentric wheel type antifriction device, and the drill string frictional resistance to solve extended reach well and horizontal well horizontal segment is big, drill string be sent into difficulty technical problem。
This utility model provides a kind of eccentric wheel type antifriction device, including cylinder, described cylinder is provided with at least one row's drag reduction wheel assembly, often row's drag reduction wheel assembly at least includes three drag reduction wheel assemblies, each drag reduction wheel assembly on same row's drag reduction wheel assembly be centrally formed drag reduction wheel assembly cross section, angle is formed between described drag reduction wheel assembly cross section and described tubular axis, described drag reduction wheel assembly protrudes from the outer surface of described cylinder, described drag reduction wheel assembly is column, described drag reduction wheel assembly axis and described tubular axis are two different surface beelines, the projection on the cross section being perpendicular to described tubular axis of the plurality of drag reduction wheel assembly forms drag reduction wheel assembly projecting section, described adjacent two drag reduction wheel assemblies projection is rotationally symmetrical with described tubular axis；Described drag reduction wheel assembly axis and described tubular axis institute angulation are acute angle, and described drag reduction wheel assembly axis is consistent relative to described tubular axis incline direction。
The beneficial effects of the utility model are: in drill string feeding process, owing to drag reduction wheel assembly axis and described tubular axis institute angulation are acute angle, drag reduction wheel assembly contacts with the borehole wall, drag reduction wheel assembly is made to rotate, the sliding friction of the borehole wall and drill string is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, reduces frictional resistance；Drill string axial feeding and rotating in a circumferential direction, can drive drag reduction wheel assembly to rotate, reduction frictional resistance；Eccentric wheel type antifriction device of the present utility model is purely mechanic structure, and few easy workout part is simple and reliable；Simultaneously, it is possible to extend horizontal segment drilling well length, Financial cost is saved。
Further, the angle between described drag reduction wheel assembly cross section and described tubular axis is 9 degree。
Above-mentioned further technical scheme is adopted to provide the benefit that: owing to the angle between drag reduction wheel assembly cross section and tubular axis is 9 degree so that the frictional force that multiple drag reduction wheel assemblies convert is comparatively balanced。
Further, described adjacent two drag reduction wheel assemblies projection is that the rotational symmetric anglec of rotation is equal with described tubular axis。
Above-mentioned further technical scheme is adopted to provide the benefit that: owing to the anglec of rotation is equal, it was shown that multiple drag reduction wheel assemblies are distributed on cylinder so that the advance of cylinder is comparatively steady。
Further, described drag reduction wheel assembly includes roller housing, roller, multiple anti-roll flute, oil storage bag, described roller housing is provided with inner chamber, described roller housing is fixed on described cylinder, and described roller is arranged in the inner chamber of described roller housing, and described roller top is connected by sealing sealing structure with described roller housing, described roller bottom is provided with roller inner chamber, the bottom surface of described roller housing is provided with bottom surface through hole, described bottom surface through hole and described roller inner space, and described bottom surface through hole is provided with seal plug；Described roller bottom is connected by rolling attachment structure rolling with described roller housing, the bottom of described roller is additionally provided with the oil guiding hole connecting described roller inner chamber and described roller outer surface, described oil storage bag is arranged on the top of described roller inner chamber and seals with its sidewall, the lower space of described oil storage bag is shoe cream room, described roller top is provided with the pressure through hole that the upper space with described oil storage bag connects, the plurality of anti-roll flute is arranged on described roller top and protrudes from its outer surface, the abrasionproof tooth end of described roller crown center position is higher than the abrasionproof tooth end of marginal position。
Above-mentioned further technical scheme is adopted to provide the benefit that: the roller in above-mentioned drag reduction wheel assembly structure rotates in roller housing by rolling attachment structure, the bottom surface of roller housing is provided with bottom surface through hole and is easy to inject in roller inner chamber lubricating oil from the through hole of bottom surface, after injecting lubricating oil, blocked by seal plug, it is to avoid oil leakage；Roller is additionally provided with the oil guiding hole of connection roller inner chamber and roller outside cylinder bottom, it is ensured that lubricating oil can enter rolling attachment structure, for rolling the lubrication that attachment structure provides good；Roller top is provided with the pressure through hole that the upper space with oil storage bag connects, when drag reduction wheel assembly works, outside slurry enters the upper space of oil storage bag by pressure through hole, guarantee the pressure balance of oil storage bag both sides, making its internal lubricating oil enter rolling attachment structure better, the roller of drag reduction wheel assembly rotates more steady and effective。
Further, described sealing structure includes the groove being arranged on described roller housing inwall, is provided with sealing ring in described groove, and described sealing ring is all tightly connected with described roller top and described groove。
Above-mentioned further technical scheme is adopted to provide the benefit that: by the sealing means of ring structure, sealing effectiveness is better, and sealing ring is arranged in the groove of roller housing inwall, and sealing ring not easily slides, it is ensured that the reliability of sealing。
Further, described rolling attachment structure includes being provided with multiple steel ball in the inner chamber that the arc groove that the roller arc groove being arranged on described roller bottom is corresponding with roller arc groove with being arranged on described roller housing inwall, described roller arc groove and described roller housing arc groove are formed。
Above-mentioned further technical scheme is adopted to provide the benefit that: by being provided with multiple steel ball in the inner chamber that roller arc groove and roller housing arc groove are formed, this rolling attachment structure is simple, makes and install more convenient, rolls connection effect fine simultaneously。
Further, described drag reduction wheel assembly axis and described tubular axis institute angulation are more than 60 °, and less than 90 °。
Above-mentioned further technical scheme is adopted to provide the benefit that: drag reduction wheel assembly axis and described tubular axis institute angulation are positioned at the angular range of 60 ° to 90 °, the sliding friction of the borehole wall and drill string is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, and the effect reducing frictional resistance is best。
Further, described tubular axis vertical direction is provided with at least two row's drag reduction wheel assemblies。
Above-mentioned further technical scheme is adopted to provide the benefit that: the sliding friction that multiple rows of drag reduction wheel assembly can increase the borehole wall and drill string is converted into the effect of the rolling friction of the borehole wall and drag reduction wheel assembly, further less frictional resistance。
Further, the aperture of described pressure through hole is between 0.8mm to 5mm。
Above-mentioned further technical scheme is adopted to provide the benefit that: the aperture of pressure through hole is between 0.8mm to 5mm, it can be ensured that the smooth entrance of slurry。
Further, described drag reduction wheel assembly protrudes from the height of the outer surface of described cylinder between 2mm to 20mm。
Above-mentioned further technical scheme is adopted to provide the benefit that: drag reduction wheel assembly protrudes from the height of the outer surface of described cylinder between 2mm to 20mm, it is ensured that the good contact of drag reduction wheel assembly and the borehole wall。
Further, described roller housing is provided with the steel ball through hole connected with described roller housing arc groove and described roller housing outer wall。
Above-mentioned further technical scheme is adopted to provide the benefit that: steel ball through hole is easy to put into steel ball in the inner chamber of roller arc groove and the formation of roller housing arc groove。
Further, described cylinder is the centralizer of spiral stabilizer body, the big end of drilling rod, the stable set of replaceable sleeve stabilizer or helicoid hydraulic motor。
Above-mentioned further technical scheme is adopted to provide the benefit that: drag reduction wheel assembly structure to be arranged on spiral stabilizer body, the big end of drilling rod, the stable set of replaceable sleeve stabilizer or the centralizer of helicoid hydraulic motor, make spiral stabilizer, drilling rod, replaceable sleeve stabilizer and helicoid hydraulic motor reduce frictional resistance in the course of the work, improve work efficiency。
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of drag reduction wheel assembly in this utility model eccentric wheel type antifriction device,
Fig. 2 is embodiment one structure chart that this utility model drag reduction wheel assembly is arranged on spiral stabilizer body,
Fig. 3 is drag reduction wheel assembly partial sectional view structure chart in Fig. 2,
Fig. 4 is the profile in A-A direction in Fig. 3,
Fig. 5 is that drag reduction wheel assembly is arranged in the embodiment two on spiral stabilizer body the profile in A-A direction,
Fig. 6 is the embodiment structure chart that this utility model drag reduction wheel assembly is arranged on the big end of drilling rod,
Fig. 7 be this utility model drag reduction wheel assembly be arranged on replaceable sleeve stabilizer stablize the embodiment structure chart put,
Fig. 8 is the embodiment structure chart that this utility model drag reduction wheel assembly is arranged on the centralizer of helicoid hydraulic motor。
In accompanying drawing, the list of parts representated by each label is as follows:
01, cylinder, 02, drag reduction wheel assembly, 021, roller housing, 022, roller, 023, anti-roll flute, 024, pressure through hole, 025, oil storage bag, 026, sealing ring, 027, oil guiding hole, 028, steel ball, 029, seal plug, 03, screw, 04, helical groove
Detailed description of the invention
Below in conjunction with drawings and embodiments, this utility model is further described。
In this utility model eccentric wheel type antifriction device, the sectional structure chart of drag reduction wheel assembly is referring to Fig. 1, drag reduction wheel assembly 02 includes roller housing 021, roller 022, multiple anti-roll flute 023, oil storage bag 025, roller housing 021 is provided with inner chamber, roller housing 021 is fixed on cylinder 01, roller 022 is arranged in the inner chamber of roller housing 021, roller 022 top is connected by sealing sealing structure with roller housing 021, roller 022 bottom is provided with roller inner chamber, the bottom surface of roller housing 021 is provided with bottom surface through hole, bottom surface through hole and roller inner space, bottom surface through hole is provided with seal plug 029；Roller 022 bottom is connected by rolling attachment structure rolling with roller housing 021, the bottom of roller 022 is additionally provided with the oil guiding hole 027 of connection roller inner chamber and roller 022 outer surface, oil storage bag 025 is arranged on the top of roller inner chamber and seals with its sidewall, the lower space of oil storage bag 025 is shoe cream room, roller 022 top is provided with the pressure through hole 024 that the upper space with oil storage bag 025 connects, multiple anti-roll flutes 023 are arranged on roller 022 top and protrude from its outer surface, and anti-roll flute 023 summit of roller 022 crown center position is higher than anti-roll flute 023 summit of marginal position；Sealing the groove that structure includes being arranged on roller housing 021 inwall, be provided with sealing ring 026 in groove, sealing ring 026 is all tightly connected with roller 022 top and groove；Roll attachment structure to include being provided with multiple steel ball 028 in the inner chamber that the arc groove that the roller arc groove being arranged on roller 022 bottom is corresponding with roller arc groove with being arranged on roller housing 021 inwall, roller arc groove and roller housing arc groove are formed。
Roller in drag reduction wheel assembly structure rotates in roller housing by rolling attachment structure, the bottom surface of roller housing is provided with bottom surface through hole and is easy to inject in roller inner chamber lubricating oil from the through hole of bottom surface, after injecting lubricating oil, blocked by seal plug, it is to avoid oil leakage；Roller is additionally provided with the oil guiding hole of connection roller inner chamber and roller outside cylinder bottom, it is ensured that lubricating oil can enter rolling attachment structure, for rolling the lubrication that attachment structure provides good；Roller top is provided with the pressure through hole that the upper space with oil storage bag connects, when drag reduction wheel assembly works, outside slurry enters the upper space of oil storage bag by pressure through hole, guarantee the pressure balance of oil storage bag both sides, making its internal lubricating oil enter rolling attachment structure better, the roller of drag reduction wheel assembly rotates more steady and effective。
By the sealing means of ring structure, sealing effectiveness is better, and sealing ring is arranged in the groove of roller housing inwall, and sealing ring not easily slides, it is ensured that the reliability of sealing。By being provided with multiple steel ball in the inner chamber that roller arc groove and roller housing arc groove are formed, this rolling attachment structure is simple, makes and install more convenient, rolls connection effect fine simultaneously。
This utility model drag reduction wheel assembly is arranged on embodiment one structure chart on spiral stabilizer body referring to Fig. 2 to Fig. 4, including cylinder 01, cylinder 01 is spiral stabilizer body, cylinder 01 is provided with at least one row's drag reduction wheel assembly 02, often row's drag reduction wheel assembly 02 at least includes three drag reduction wheel assemblies 02, each drag reduction wheel assembly 02 on same row's drag reduction wheel assembly 02 be centrally formed drag reduction wheel assembly cross section, angle is formed between drag reduction wheel assembly cross section and cylinder 01 axis, drag reduction wheel assembly 02 protrudes from the outer surface of cylinder 01, drag reduction wheel assembly 02 is in column, drag reduction wheel assembly 02 axis and cylinder 01 axis are two different surface beelines, the projection on the cross section being perpendicular to cylinder 01 axis of multiple drag reduction wheel assemblies 02 forms drag reduction wheel assembly projecting section, adjacent two drag reduction wheel assemblies projection is rotationally symmetrical with cylinder 01 axis；Drag reduction wheel assembly 02 axis and cylinder 01 axis institute angulation are acute angle, its angle [alpha] is 60-90 °, and drag reduction wheel assembly 02 axis is consistent relative to cylinder 01 axis incline direction, and drag reduction wheel assembly 02 protrudes from the outer cylinder surface of cylinder 01, and its protrusion height is 2-20mm；Cylinder 01 outer surface is provided with multiple helical groove 04。
Article two, different surface beeline institute angulation is defined as: mistake space any point is drawn two straight lines and is respectively parallel to two different surface beelines, acute angle formed by them, it is simply that angle formed by different surface beeline。Drag reduction wheel assembly axis and tubular axis are two different surface beelines, i.e. drag reduction wheel assembly deviation tubular axis；Three drag reduction wheel assemblies are rotationally symmetrical with described tubular axis, and namely the direction of three drag reduction wheel assembly deviation tubular axis is consistent, and is distributed on the surface of cylinder (spiral stabilizer body)。In the use procedure of eccentric wheel type antifriction device, drag reduction wheel assembly contacts with the borehole wall, makes drag reduction wheel assembly rotate, and the sliding friction of the borehole wall and drill string is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, reduces frictional resistance；Drill string axial feeding and rotating in a circumferential direction, can drive drag reduction wheel assembly to rotate, reduction frictional resistance；Eccentric wheel type antifriction device of the present utility model is purely mechanic structure, and few easy workout part is simple and reliable；Simultaneously, it is possible to extend horizontal segment drilling well length, Financial cost is saved。
In the present embodiment, drag reduction wheel assembly 02 axis is positioned at the right side of the centrage in cross section, it is adaptable to use when boring direction less than 90 ° under drag reduction wheel assembly axis and drill string。
In the present embodiment, the angle between described drag reduction wheel assembly cross section and described cylinder (01) axis is 90 degree。Make the frictional force that multiple drag reduction wheel assembly converts comparatively balanced。
In the present embodiment, described adjacent two drag reduction wheel assemblies projection is that the rotational symmetric anglec of rotation is equal with described cylinder (01) axis。Owing to the anglec of rotation is equal, it was shown that multiple drag reduction wheel assemblies are distributed on cylinder so that the advance of cylinder is comparatively steady。
In a particular embodiment, stating drag reduction wheel assembly 02 axis and cylinder 01 axis institute angulation, α can be the arbitrary value between 60 ° to 90 °, removes to meet the needs of product real work。
Drag reduction wheel assembly is arranged in the embodiment two on spiral stabilizer body the profile in A-A direction and compares referring to Fig. 5, Fig. 4, and it is distinctive in that, drag reduction wheel assembly 02 axis is positioned at the left side of the centrage in cross section；Suitable in drag reduction wheel assembly axis and use when brill direction is more than 90 ° under drill string。
This utility model drag reduction wheel assembly is arranged on the embodiment structure chart on the big end of drilling rod referring to Fig. 6, cylinder 01 is the big end of drilling rod, drag reduction wheel assembly 02 is arranged on the big end of drilling rod, drilling rod is when advancing, drag reduction wheel assembly contacts with the borehole wall and rotates, the sliding friction of the borehole wall and drilling rod is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, reduces frictional resistance；Improve the work efficiency of drilling rod。
What this utility model drag reduction wheel assembly was arranged on replaceable sleeve stabilizer stablizes the embodiment structure chart put referring to Fig. 7, cylinder 01 is the stable set of replaceable sleeve stabilizer, drag reduction wheel assembly 02 is arranged on stablizing of replaceable sleeve stabilizer and puts, replaceable sleeve stabilizer is when advancing, drag reduction wheel assembly contacts with the borehole wall and rotates, the sliding friction of the borehole wall and replaceable sleeve stabilizer is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, reduces frictional resistance；Improve the work efficiency of replaceable sleeve stabilizer。
This utility model drag reduction wheel assembly is arranged on the embodiment structure chart on the centralizer of helicoid hydraulic motor referring to Fig. 8, cylinder 01 is the centralizer of helicoid hydraulic motor, drag reduction wheel assembly 02 is arranged on the centralizer of helicoid hydraulic motor, replaceable sleeve stabilizer is when advancing, drag reduction wheel assembly contacts with the borehole wall and rotates, the sliding friction of the borehole wall and helicoid hydraulic motor is converted into the borehole wall and the rolling friction of drag reduction wheel assembly, reduces frictional resistance；Improve the work efficiency of helicoid hydraulic motor。
Drag reduction wheel assembly in this utility model can also be arranged on other drilling tool, has reached to reduce the effect of drilling tool frictional resistance。
In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " on ", D score, " vertically ", " level ", " top ", " end ", the orientation of the instruction such as " interior " or position relationship be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be。
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them。And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature。Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height less than second feature。
Above eccentric wheel type antifriction device of the present utility model being described in detail, principle of the present utility model and embodiment are set forth by specific case used herein。The explanation of above example is only intended to help to understand core concept of the present utility model；Simultaneously for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this specification content should not be construed as restriction of the present utility model。
Claims (12)
1. an eccentric wheel type antifriction device, including cylinder (01), it is characterized in that, described cylinder (01) is provided with at least one row's drag reduction wheel assembly (02), often row's drag reduction wheel assembly (02) at least includes three drag reduction wheel assemblies (02), each drag reduction wheel assembly (02) on same row's drag reduction wheel assembly (02) be centrally formed drag reduction wheel assembly cross section, angle is formed between described drag reduction wheel assembly cross section and described cylinder (01) axis, described drag reduction wheel assembly (02) protrudes from the outer surface of described cylinder (01), described drag reduction wheel assembly (02) is in column, described drag reduction wheel assembly (02) axis and described cylinder (01) axis are two different surface beelines, the projection on the cross section being perpendicular to described cylinder (01) axis of the plurality of drag reduction wheel assembly (02) forms drag reduction wheel assembly projecting section, described adjacent two drag reduction wheel assemblies projection is rotationally symmetrical with described cylinder (01) axis；Described drag reduction wheel assembly (02) axis and described cylinder (01) axis institute angulation are acute angle, and described drag reduction wheel assembly (02) axis is consistent relative to described cylinder (01) axis incline direction。
2. eccentric wheel type antifriction device according to claim 1, it is characterised in that the angle between described drag reduction wheel assembly cross section and described cylinder (01) axis is 90 degree。
3. eccentric wheel type antifriction device according to claim 2, it is characterised in that described adjacent two drag reduction wheel assemblies projection is that the rotational symmetric anglec of rotation is equal with described cylinder (01) axis。
4. the eccentric wheel type antifriction device according to claims 1 to 3 any claim, it is characterized in that, described drag reduction wheel assembly (02) includes roller housing (021), roller (022), multiple anti-roll flutes (023), oil storage bag (025), described roller housing (021) is provided with inner chamber, described roller housing (021) is fixed on described cylinder (01), described roller (022) is arranged in the inner chamber of described roller housing (021), described roller (022) top is connected by sealing sealing structure with described roller housing (021), described roller (022) bottom is provided with roller inner chamber, the bottom surface of described roller housing (021) is provided with bottom surface through hole, described bottom surface through hole and described roller inner space, described bottom surface through hole is provided with seal plug (029)；Described roller (022) bottom is connected by rolling attachment structure rolling with described roller housing (021), the bottom of described roller (022) is additionally provided with the oil guiding hole (027) connecting described roller inner chamber and described roller (022) outer surface, described oil storage bag (025) is arranged on the top of described roller inner chamber and seals with its sidewall, the lower space of described oil storage bag (025) is shoe cream room, described roller (022) top is provided with the pressure through hole (024) that the upper space with described oil storage bag (025) connects, the plurality of anti-roll flute (023) is arranged on described roller (022) top and protrudes from its outer surface, anti-roll flute (023) summit of described roller (022) crown center position is higher than anti-roll flute (023) summit of marginal position。
5. eccentric wheel type antifriction device according to claim 4, it is characterized in that, described sealing structure includes the groove being arranged on described roller housing (021) inwall, being provided with sealing ring (026) in described groove, described sealing ring (026) is all tightly connected with described roller (022) top and described groove。
6. eccentric wheel type antifriction device according to claim 4, it is characterized in that, described rolling attachment structure includes being provided with multiple steel ball (028) in the inner chamber that the arc groove that the roller arc groove being arranged on described roller (022) bottom is corresponding with roller arc groove with being arranged on described roller housing (021) inwall, described roller arc groove and described roller housing arc groove are formed。
7. according to the arbitrary described eccentric wheel type antifriction device of claims 1 to 3, it is characterised in that described drag reduction wheel assembly (02) axis and described cylinder (01) axis institute angulation are more than 60 °, and less than 90 °。
8. the eccentric wheel type antifriction device according to claims 1 to 3 any claim, it is characterised in that described cylinder (01) axis vertical direction is provided with at least two rows' drag reduction wheel assembly (02)。
9. eccentric wheel type antifriction device according to claim 4, it is characterised in that the aperture of described pressure through hole (024) is between 0.8mm to 5mm。
10. the eccentric wheel type antifriction device according to claims 1 to 3 any claim, it is characterised in that described drag reduction wheel assembly (02) protrudes from the height of the outer surface of described cylinder (01) between 2mm to 20mm。
11. eccentric wheel type antifriction device according to claim 6, it is characterised in that be provided with the steel ball through hole connected with described roller housing arc groove and described roller housing (021) outer wall on described roller housing (021)。
12. the eccentric wheel type antifriction device according to claims 1 to 3 any claim, it is characterised in that described cylinder (01) is spiral stabilizer body, the centralizer of the stable set of the big end of drilling rod, replaceable sleeve stabilizer or helicoid hydraulic motor。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105731.7U CN205330557U (en) | 2016-02-01 | 2016-02-01 | Eccentric wheeled antifriction is fallen and is hindered device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105731.7U CN205330557U (en) | 2016-02-01 | 2016-02-01 | Eccentric wheeled antifriction is fallen and is hindered device |
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| CN205330557U true CN205330557U (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604495A (en) * | 2016-02-01 | 2016-05-25 | 成都维泰油气能源技术有限公司 | Eccentric wheel type antifriction and resistance-reducing device |
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2016
- 2016-02-01 CN CN201620105731.7U patent/CN205330557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604495A (en) * | 2016-02-01 | 2016-05-25 | 成都维泰油气能源技术有限公司 | Eccentric wheel type antifriction and resistance-reducing device |
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| CP02 | Change in the address of a patent holder |
Address after: 610042 Chengdu City, Wuhou District province people's Road South, No. four, building 1-1, No. 24, layer 1-3, Patentee after: CHENGDU VERTECHS OIL & GAS TECHNOLOGY CO., LTD. Address before: 610051 Chenghua District, Chengdu, Jianshe Road, Diamond Plaza, No. 10, block B, building 22, building 2206, No. Patentee before: CHENGDU VERTECHS OIL & GAS TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180710 Address after: 610000 No. 160 Huang He road, East Industrial Zone, Xindu District, Chengdu, Sichuan Patentee after: Chengdu Sealand Energy Technology Ltd. Address before: 610042 No. 1-1, 24 story No. 1-3, 1 section four, Renmin South Road, Wuhou District, Chengdu, Sichuan. Patentee before: CHENGDU VERTECHS OIL & GAS TECHNOLOGY CO., LTD. |