CN102748416A - Underground electromagnetic clutch - Google Patents
Underground electromagnetic clutch Download PDFInfo
- Publication number
- CN102748416A CN102748416A CN2011101013236A CN201110101323A CN102748416A CN 102748416 A CN102748416 A CN 102748416A CN 2011101013236 A CN2011101013236 A CN 2011101013236A CN 201110101323 A CN201110101323 A CN 201110101323A CN 102748416 A CN102748416 A CN 102748416A
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- electromagnetic clutch
- gear ring
- armature
- brake disc
- coil
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Abstract
The invention relates to an underground electromagnetic clutch. The underground electromagnetic clutch is characterized in that a magnet yoke (2) and a shaft sleeve (3) are arranged between a casing (8) and a main shaft (7); a cross shoulder is arranged at the middle of the magnet yoke (2); a rolling bearing (1) is arranged on an inner ring of the upper part of the cross shoulder; a coil (4) is arranged on an inner ring of the lower part of the cross shoulder; a gear ring is arranged at the joined part between the shaft sleeve (3) and the magnet yoke (2); a gear ring is arranged at the upper part of a brake disc (6); a movable disc (9) is arranged at the lower part of the coil (4); an armature (5) is arranged between the movable disc (9) and the brake disc (6) and can vertically move along the axial direction; and gear rings are respectively arranged on the upper surface and the lower surface of the armature (5). The underground electromagnetic clutch disclosed by the invention is small in size and light in weight and can normally work in an environment of an oil bath; and the underground electromagnetic clutch has the characteristics of high temperature resistance, high pressure resistance, stable and reliable operation and capability of improving the measurement precision of a drilling tool.
Description
Technical field:
The present invention relates to a kind of downhole electromagnetic clutch, belong to the oil drilling tool design field.
Background technique:
Magnetic clutch is one of main executive component of automation control, and it can rotate at prime mover and be used for controlling Transmitted chains under unbroken condition, is a kind of device that can convert electromagnetic energy into mechanical energy.Magnetic clutch cooperates with other element, can make that drive part can be realized starting, stops, speed change, braking, switching-over, straight line location and circular index etc.Because magnetic clutch has that volume is little, compact structure, be active in one's movements, advantage such as the wasted work rate is little and easy to operate slightly, so be widely used in the mechanical transmissioning technology in modern age.
The magnetic clutch kind is a lot; The also more complicated of classifying; But conclude and get up can be divided into four types: friction disk type magnetic clutch, slipping toothed electromagnetic clutch, magnetic formula magnetic clutch and slip type magnetic clutch, wherein the application of friction disk type magnetic clutch and slipping toothed electromagnetic clutch is the most extensive.The friction disk type magnetic clutch is categorized as by different situations: (1) can be divided into according to service condition: wet type and dry type.Wet type is come lubricating friction plate and is cooled off with oil in use.Dry type is in air, to use, and non-refuelling is self cooling.(2), one chip and multidisc are arranged according to the rubbing surface number.One chip has only a pair of friction plate, and multidisc has the friction plate more than two pairs.Slipping toothed electromagnetic clutch is divided into usually two kinds on slip ring and no slip ring is arranged.
The advantage of magnetic clutch is: the mechanical property of transmission system can be improved in (1); (2) can improve the operating characteristics of transmission system; (3) handling safety with have an overload protection function; (4) easy to maintenance, control is simple.
In recent years, magnetic clutch had also obtained extensive use in oil-well drilling equipment.But because the particular surroundings of down-hole HTHP, this magnetic clutch that just need in downhole tool, work must be able to bear the effect of high temperature, high pressure and corrosion-resistant, and can be in the environment of oil bath proper functioning.Because the space, down-hole is narrow and small, therefore also requirement is as far as possible little on bulk.Restriction just because of these abominable working environments of down-hole; Existing magnetic clutch often can't satisfy the requirement of oil-well drilling equipment; This just makes when carrying out directed drilling to downhole tool control inconvenience, inaccuracy; Influenced the use of downhole drill instrument, sometimes even can cause down-hole accident.
Summary of the invention:
In order to overcome the deficiency of existing technology, the object of the present invention is to provide a kind of downhole electromagnetic clutch, its volume is little; In light weight; Can be in the environment of oil bath proper functioning, have high temperature resistant, high pressure resistant, corrosion-resistant, operate steadily reliably, can improve the characteristics of the measuring accuracy of drilling tool.
The present invention realizes above-mentioned purpose through following technological scheme.
In a kind of structure of downhole electromagnetic clutch, be provided with rolling bearing, yoke, axle sleeve, coil, armature, brake disc, main shaft, shell, Moving plate; Yoke and axle sleeve are installed between shell and main shaft; There is a horizontal shoulder at the middle part of yoke, and inner ring is equipped with rolling bearing on the top of horizontal shoulder; Inner ring is equipped with coil in the bottom of horizontal shoulder; The top of axle sleeve is connected with coupling through socket head screw; Axle sleeve is provided with gear ring with the place of engaging of yoke; Brake disc is fixed on the shell through socket head screw, is provided with gear ring on the top of brake disc; Bottom at coil is provided with Moving plate; Between Moving plate and brake disc, armature is installed; Armature can move up and down vertically; The upper and lower surface of armature all is furnished with gear ring, and top gear ring can be meshed with the gear ring on the Moving plate, and following gear ring can be meshed with the gear ring on the brake disc.
The present invention has following beneficial effect compared with prior art:
1, magnetic clutch of the present invention utilizes the controlling method of electric current, the rise time of can regulate moment, realize the continuously smooth starting of transmission system, and in engaging process, can not produce bigger axial force, stable working is reliable.
2, magnetic clutch of the present invention has improved in the magnetic clutch relevant parts by magnetized problem in various degree, has improved the life-span and the precision of transmission system.
3, magnetic clutch volume of the present invention is little, and light weight can be installed in the down-hole, can bear the effect of down-hole high temperature, high pressure, and can be corrosion-resistant and in the environment of oil bath proper functioning.
4, the armature ring gear of magnetic clutch of the present invention can guarantee fast, accurately mesh, and has reduced meshing error.
5, magnetic clutch of the present invention can be realized the dual functions of clutch and braking, and after the dead electricity, clutch is thrown off rapidly, gets into braking state, has improved the measuring accuracy of drilling tool and the accuracy that the drilling well orientation is confirmed.
Description of drawings:
Fig. 1 is a kind of general structure schematic representation of downhole electromagnetic clutch.
In the drawings: 1. rolling bearing, 2. yoke, 3. axle sleeve, 4. coil, 5. armature, 6. brake disc, 7. main shaft, 8. shell, 9. Moving plate.
Embodiment:
The present invention is made up of rolling bearing (1), yoke (2), axle sleeve (3), coil (4), armature (5), brake disc (6), main shaft (7), shell (8), Moving plate (9); Yoke (2) and axle sleeve (3) are installed between shell (8) and main shaft (7); There is a horizontal shoulder at the middle part of yoke (2), and inner ring is equipped with rolling bearing (1) on the top of horizontal shoulder; Inner ring is equipped with coil (4) in the bottom of horizontal shoulder; The top of axle sleeve (3) is connected with coupling through socket head screw; Axle sleeve (3) is provided with gear ring with the place of engaging of yoke (2); Brake disc (6) is fixed on the shell (8) through socket head screw, is provided with gear ring on the top of brake disc (6); Be provided with Moving plate (9) in the bottom of coil (4); Between Moving plate (9) and brake disc (6), armature (5) is installed; Armature (5) can move up and down vertically; The upper and lower surface of armature (5) all is furnished with gear ring, and top gear ring can be meshed with the gear ring on the Moving plate (9), and following gear ring can be meshed with the gear ring on the brake disc (6).
When magnetic clutch was worked, coil (4) energising produced magnetic field, and under the effect of magnetic force, armature (5) overcomes resistance such as spring and moves up, and realizes engagement with the Moving plate (9) on the axle sleeve (3), thereby through Moving plate (9) transmitting torque.
When magnetic clutch is not worked, coil (4) outage, armature (5) slides to the other end under the effect of spring restoring force, and with brake disc (6) engagement, and then armature (5) is fixed, thereby realizes braking function.
This clutch adopts Current Control, controls simple to operationly, can realize the automation and the remote operation of working procedure easily.
Claims (3)
1. a downhole electromagnetic clutch is made up of axle sleeve (3), brake disc (6), main shaft (7), shell (8), it is characterized in that in its structure, being provided with rolling bearing (1), yoke (2), coil (4), armature (5), Moving plate (9); Yoke (2) and axle sleeve (3) are installed between shell (8) and main shaft (7); There is a horizontal shoulder at the middle part of yoke (2), and inner ring is equipped with rolling bearing (1) on the top of horizontal shoulder; Inner ring is equipped with coil (4) in the bottom of horizontal shoulder; Brake disc (6) is fixed on the shell (8) through socket head screw, is provided with gear ring on the top of brake disc (6); Be provided with Moving plate (9) in the bottom of coil (4); Between Moving plate (9) and brake disc (6), armature (5) is installed; Armature (5) can move up and down vertically.
2. a kind of downhole electromagnetic clutch according to claim 1 is characterized in that the top of axle sleeve (3) is connected with coupling through socket head screw; Axle sleeve (3) is provided with gear ring with the place of engaging of yoke (2).
3. a kind of downhole electromagnetic clutch according to claim 2 is characterized in that the upper and lower surface of armature (5) all is furnished with gear ring, and top gear ring can be meshed with the gear ring on the Moving plate (9), and following gear ring can be meshed with the gear ring on the brake disc (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101013236A CN102748416A (en) | 2011-04-22 | 2011-04-22 | Underground electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101013236A CN102748416A (en) | 2011-04-22 | 2011-04-22 | Underground electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748416A true CN102748416A (en) | 2012-10-24 |
Family
ID=47028827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101013236A Pending CN102748416A (en) | 2011-04-22 | 2011-04-22 | Underground electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748416A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1653107A1 (en) * | 2003-07-24 | 2006-05-03 | Sanden Corporation | Electromagnetic clutch |
| CN201057232Y (en) * | 2007-06-11 | 2008-05-07 | 天津市天泰离合器科技发展有限公司 | Tooth embedded electromagnetic clutch |
| CN201786254U (en) * | 2010-09-15 | 2011-04-06 | 长江大学 | Stepless adjustable borehole track control tool |
-
2011
- 2011-04-22 CN CN2011101013236A patent/CN102748416A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1653107A1 (en) * | 2003-07-24 | 2006-05-03 | Sanden Corporation | Electromagnetic clutch |
| CN201057232Y (en) * | 2007-06-11 | 2008-05-07 | 天津市天泰离合器科技发展有限公司 | Tooth embedded electromagnetic clutch |
| CN201786254U (en) * | 2010-09-15 | 2011-04-06 | 长江大学 | Stepless adjustable borehole track control tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |