CN204164173U - Combined type turbodrill magnetic suspension bearing saves - Google Patents
Combined type turbodrill magnetic suspension bearing saves Download PDFInfo
- Publication number
- CN204164173U CN204164173U CN201420632667.9U CN201420632667U CN204164173U CN 204164173 U CN204164173 U CN 204164173U CN 201420632667 U CN201420632667 U CN 201420632667U CN 204164173 U CN204164173 U CN 204164173U
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- China
- Prior art keywords
- bearing
- ring
- magnetic suspension
- joint
- radial
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- 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
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Abstract
The utility model discloses a kind of combined type turbodrill magnetic suspension bearing joint, comprise magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint, be made up of main parts size such as radial bearing assembly, radial axle bearing sleeve, nodal axisn, bearing interstage sleeve, thrust shaft bearing sleeve, thrust bearing component, central shaft, coupling.Described magnetic suspension radial bearing and the independent Cheng Jie of magnetic suspension thrust bearing, can increase and reduce radial bearing joint or thrust bearing joint, form the assembled scheme of bearing joint, effectively can reduce mechanical power loss, improve drilling efficiency according to actual well drilled operating mode.
Description
Technical field
The utility model relates to the field mud motors such as a kind of oil field, gas field, and specifically combined type turbodrill magnetic suspension bearing joint, belongs to field of petroleum machinery.
Background technique
Turbodrill is the down-hole fluid motor that a kind of hydraulic energy by mud changes mechanical energy into, breaks rock, reach the object of drilling well by the rotary actuation drill bit of rotor.Because down-hole geological condition is complicated, drillng operation operating mode is severe, and suffered by turbodrill bearing, load is large and uneven, adds the wearing and tearing of landwaste in the corrosion of drilling mud and mud simultaneously, the working life of turbodrill bearing is very short, and this also causes the application of turbodrill to be restricted.Therefore, improving the life-span of turbodrill bearing, is the key factor improving turbodrill bulk life time.
At present, the method improving the employing of turbodrill drilling efficiency mainly contains: 1. the independent Cheng Jie of bearing, can directly change, and reduces the repair time in drilling process; 2. adopt all-carbide steel or other high-abrasive materials, slow down thrust bearing and lost efficacy due to wearing and tearing; 3. bearing contact surfaces is inlayed PDC sheet.These methods improve the service time of turbodrill to a certain extent or improve drilling efficiency, but this basic problem of bearing failure caused because of wearing and tearing is not resolved.
Model utility content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of combined type turbodrill magnetic suspension bearing joint, in order to improve the working life of supporter for turbine drilling tool.
The technological scheme that the utility model provides is: combined type turbodrill magnetic suspension bearing saves, comprise magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint, be made up of main parts size such as radial bearing assembly, radial bearing urceolus, nodal axisn, interstage sleeve, thrust bearing urceolus, thrust bearing component, central shaft, coupling and joints.Described radial bearing assembly is divided into internal magnetic ring and outer magnetic ring, and described internal magnetic ring is sleeved on nodal axisn, and described outer magnetic ring is embedded in radial axle bearing sleeve, and integral installation becomes radial bearing joint on internal magnetic ring.Certain gap is provided with between described internal magnetic ring and outer magnetic ring.
Described radial bearing internal magnetic ring is relative with outer magnetic ring magnetic pole, the magnetic carrying drilling tool radial load between application magnet ring.Be provided with certain gap between described internal magnetic ring and outer magnetic ring, magnetic and gap are inversely proportional to, and ensure that the stress balance of turbodrill radial direction in working procedure; Meanwhile, avoid the mutual collision between magnet ring and wearing and tearing, improve the working life of bearing.
Described thrust bearing component comprises dynamic magnet ring and magnetostatic ring.Described magnetostatic ring is embedded in thrust bearing outer tube inner wall.Described dynamic magnet ring is all clamped on main shaft; Described main shaft adopts hollow-core construction, is contained in thrust bearing urceolus.The setting alternate with dynamic magnet ring of described magnetostatic ring, is provided with certain gap between magnetostatic ring and dynamic magnet ring, effectively absorbs the axial impact loading of turbodrill, ensures axial stress balance.
Described magnetic suspension radial bearing and the independent Cheng Jie of magnetic suspension thrust bearing, can increase and reduce radial bearing joint or thrust bearing joint, form the assembled scheme of bearing joint, effectively can reduce mechanical power loss, improve drilling efficiency according to actual well drilled operating mode.
Connected by joint between described magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint; Transmitting torque is coordinated with jaw coupling between nodal axisn and main shaft.
Compared with prior art, the utility model has the following advantages and feature.
1. the utility model carries turbodrill axial impact loading by the magnetostatic ring and the dynamic magnet ring be clamped on main shaft being embedded in thrust shaft bearing sleeve inwall, dynamic magnet ring layout alternate with magnetostatic ring is also provided with gap, avoid the mutual collision between magnet ring and wearing and tearing in load bearing process, effectively improve the working life of bearing.
2. the utility model is by magnetic suspension radial bearing and the independent Cheng Jie of magnetic suspension thrust bearing, and examine and replace is more convenient, and according to actual conditions unrestricted choice bearing joint assembled scheme, can improve drilling efficiency.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model.
Fig. 2 is magnetic suspension thrust bearing joint schematic diagram.
Fig. 3 is magnetic suspension radial bearing joint schematic diagram.
Label in figure is expressed as: 1, main shaft; 2, thrust bearing urceolus; 3, magnetostatic ring; 4, dynamic magnet ring; 5, coupling; 6, joint; 7, nodal axisn; 8, radial bearing urceolus; 9, bearing interstage sleeve; 10, internal magnetic ring; 11, outer magnetic ring.
Embodiment
In order to the technical characteristics of the present utility model of understanding clearly and effect thereof, below in conjunction with embodiment and attached according to figure the utility model is described in further detail.
Embodiment
With reference to Fig. 1, combined type turbodrill magnetic suspension bearing saves, comprise magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint, be made up of main parts size such as radial bearing assembly, radial bearing urceolus 8, nodal axisn 7, interstage sleeve 9, thrust bearing urceolus 2, thrust bearing component, main shaft 1, coupling 5.Described radial bearing assembly is divided into internal magnetic ring 10 and outer magnetic ring 11, and described internal magnetic ring 10 is sleeved on nodal axisn 7, and described outer magnetic ring 11 is embedded in radial bearing urceolus 8, and integral installation becomes radial bearing joint on internal magnetic ring 10.Certain gap is provided with between described internal magnetic ring 10 and outer magnetic ring 11.Described thrust bearing component comprises dynamic magnet ring 4 and magnetostatic ring 3.Described magnetostatic ring 3 is embedded in thrust bearing urceolus 2 inwall.Described dynamic magnet ring 4 is all clamped on main shaft 1; Described main shaft 1 adopts hollow-core construction, is contained in thrust bearing urceolus 2.
Described radial bearing internal magnetic ring 10 is relative with outer magnetic ring 11 magnetic pole, the magnetic carrying drilling tool radial load between application magnet ring.Be provided with certain gap between described internal magnetic ring 10 and outer magnetic ring 11, magnetic and gap are inversely proportional to, and ensure that the stress balance of turbodrill radial direction in working procedure; Meanwhile, avoid the mutual collision between magnet ring and wearing and tearing, improve the working life of bearing.
Magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint number amount is selected, with screwed connection between described magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint according to actual well drilled operating mode; Transmitting torque is coordinated with jaw coupling 5 between nodal axisn 7 and main shaft 1.
During work, drill bit is subject to the impulsive load on stratum, and load is delivered to bearing joint by coupling shaft, is applied on thrust bearing and radial bearing.Thrust bearing group is made up of multistage dynamic magnet ring 4 layout alternate with magnetostatic ring 3, and is provided with certain gap, and dynamic magnet ring 4 is clamped on main shaft 1, when being subject to percussion, main shaft 1 entirety moves up, and dynamic magnet ring 4 diminishes with the spacing of magnetostatic ring 3, magnetic force increases, thus reaches longitudinal balance.Equally, radial bearing assembly also reaches the effect of radial equilibrium by the change in gap between internal magnetic ring 10 and outer magnetic ring 11.Radial bearing joint or thrust bearing joint can directly be changed by the maintenance of bearing joint, and interchangeability is strong, removes and installs conveniently, and can save engineering time, improves drilling efficiency.
Claims (3)
1. combined type turbodrill magnetic suspension bearing joint, comprise magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint, it is characterized in that: described combined type turbodrill magnetic suspension bearing joint is made up of main parts size such as radial bearing assembly, radial bearing urceolus, nodal axisn, interstage sleeve, thrust bearing urceolus, thrust bearing component, main shaft, coupling and joints; Connected by joint between described magnetic suspension radial bearing joint and magnetic suspension thrust bearing joint, radial bearing joint and thrust bearing joint number amount can be selected arbitrarily.
2. combined type turbodrill magnetic suspension bearing joint according to claim 1, it is characterized in that: described radial bearing assembly is divided into internal magnetic ring and outer magnetic ring, and described internal magnetic ring is sleeved on nodal axisn, described outer magnetic ring is embedded in radial bearing urceolus; Certain gap is provided with between internal magnetic ring and outer magnetic ring described in described internal magnetic ring and nodal axisn.
3. combined type turbodrill magnetic suspension bearing joint according to claim 1, is characterized in that: described thrust bearing component comprises dynamic magnet ring and magnetostatic ring; Described magnetostatic ring is embedded in thrust bearing outer tube inner wall; Described dynamic magnet ring is all clamped on main shaft; Described main shaft adopts hollow-core construction, is contained in thrust shaft bearing sleeve; The setting alternate with dynamic magnet ring of described magnetostatic ring, is provided with certain gap between magnetostatic ring and dynamic magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632667.9U CN204164173U (en) | 2014-10-29 | 2014-10-29 | Combined type turbodrill magnetic suspension bearing saves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632667.9U CN204164173U (en) | 2014-10-29 | 2014-10-29 | Combined type turbodrill magnetic suspension bearing saves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164173U true CN204164173U (en) | 2015-02-18 |
Family
ID=52537864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420632667.9U Expired - Fee Related CN204164173U (en) | 2014-10-29 | 2014-10-29 | Combined type turbodrill magnetic suspension bearing saves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164173U (en) |
-
2014
- 2014-10-29 CN CN201420632667.9U patent/CN204164173U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20211029 |