CN201163731Y - Wireless drill-followed down-hole generator and motor - Google Patents
Wireless drill-followed down-hole generator and motor Download PDFInfo
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- CN201163731Y CN201163731Y CNU2008200785986U CN200820078598U CN201163731Y CN 201163731 Y CN201163731 Y CN 201163731Y CN U2008200785986 U CNU2008200785986 U CN U2008200785986U CN 200820078598 U CN200820078598 U CN 200820078598U CN 201163731 Y CN201163731 Y CN 201163731Y
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Abstract
The utility model provides an underground mining generator and an electric motor for wirelessly drilling. The generator comprises an upper bearing chamber component, a lower bearing chamber component, a rotor component, a stator component and a compression resistant cylinder, wherein the rotor component and the stator component are in supporting connection with the upper bearing chamber component and the lower bearing chamber component and arranged in the compression resistant cylinder; the stator component comprises a stator reel made of non-magnetic conductance materials, sleeved with the rotor component and used to make a stator winding wound circularly and the stator winding wound circularly on the stator reel; and the compression resistant cylinder made of magnetic conductance materials and used as the stator to be an external magnetic circuit of the generator. The electric motor of the utility model has the advantages of simple process and convenient assembly and disassembly.
Description
Technical field
The utility model relates to generator and motor, specifically, relates to wireless drilling with downhole generator and motor.
Background technology
Existing wireless drilling downhole generator, the metal material of high magnetic permeability is adopted in rotor core, and as electrical pure iron, magnet steel is embedded in forms rotor assembly in the rotor core.Stator adopts the teeth groove structure of silicon steel plate stacking, and stator winding is formed stator module in stator slot, and wherein the silicon steel sheet stator is as the external magnetic circuit of generator.Rotor assembly is in the same place by the support and connection of upper and lower bearing house component with stator module, is placed in the resistance to compression tube, and the resistance to compression tube as the part of generator magnetic circuit, does not therefore require the employing permeability magnetic material.The structure of wireless drilling usefulness downhole generator commonly used at present as shown in Figure 1, the generator of using on the NaviTrackUPU of U.S. Baker Hughes company, and U.S. Patent number is that disclosed generator also has the structure that is similar to Fig. 1 in the patent of US05375098A, only by reference the content of above-mentioned prior art all is herein incorporated at this.
Generator shown in Figure 1 comprises: upper bearing (metal) house component 10, stator module (comprising stator winding 20 and silicon steel sheet stator 30), rotor assembly (comprising rotor core 40 and rotor magnetic steel 50), the lower bearing house component (for example comprises lower bearing room 60, lower bearing 70, lower bearing baffle plate 80 etc.), resistance to compression tube 90.Wherein stator adopts the teeth groove structure of silicon steel plate stacking, and stator winding is in stator slot, and the resistance to compression tube is the high non-magnet material of mechanical strength.The assembling process of generator shown in Figure 1 can be as follows:
(1) at first upper bearing (metal) house component 10, stator module (containing stator winding 20 and silicon steel sheet stator 30) and lower bearing room 60 are fitted together, after the assembling as shown in Figure 2.In order to describe below conveniently, below the structure after the assembling as shown in Figure 2 is called assembly A.
(2) then rotor assembly (containing rotor core 40 and rotor magnetic steel 50) is put in the assembly A, be pressed into lower bearing 70, the structure after the assembling such as Fig. 3.Need to prove, in this assembling process, because radial disbalance magnetic pull between rotor can cause rotor assembly (containing rotor core 40 and rotor magnetic steel 50) to inhale and bump silicon steel sheet stator 30 inwalls and the problem of the rotor magnetic steel that collides with.
(3) the lower bearing baffle plate 80 of packing into, effect such as Fig. 4 after this step assembling.
(4) last, the assembly after the assembling is as shown in Figure 4 filled in resistance to compression tube 90, form general assembly structure as shown in Figure 1.Unloading process is then opposite with said process.Fig. 5 is the A-A cutaway view that wireless drilling shown in Figure 1 is used downhole generator.
The downhole generator structure is elongated, to be applicable to
The generator of drill collar is an example, and resistance to compression tube external diameter is Φ 70.Fig. 6 is the A-A cutaway view of the silicon steel sheet stator of generator shown in Figure 1.If adopt the teeth groove structure of silicon steel plate stacking, then silicon steel sheet stator outer diameter (also being generator external magnetic circuit diameter) only is Φ 55, not only the space is little on the magnetic Circuit Design, and laminate complex process, be not easy to processing, stator winding rolls off the production line also difficult, also inevitably produces slot ripples electromotive force and teeth groove moment.In addition, for electric generator structure shown in Figure 1, air gap delta very little (being about 0.5mm) between the rotor, air gap flux density B δ is big (about 0.5T), therefore the radial disbalance magnetic pull is big between rotor, can cause the problem of the rotor magnetic steel that collides with when causing the dismounting generator easily, therefore is not easy dismounting.
Also there is same problem for motor with similar structures.
The utility model content
Because aforesaid problem, one of the purpose of this utility model is to provide a kind of wireless drilling downhole generator, and the stator rotor magnetic steel that collides with makes the easy dismounting of generator when effectively avoiding the dismounting generator.
Another purpose of the present utility model is to provide a kind of wireless drilling down-hole motor, and the stator rotor magnetic steel that collides with makes the easy dismounting of motor when effectively avoiding the dismounting motor.
To achieve these goals, the utility model embodiment provides a kind of wireless drilling downhole generator, this generator comprises: comprise upper bearing (metal) house component, lower bearing house component, rotor assembly, stator module and resistance to compression tube, described rotor assembly and stator module be by described upper bearing (metal) house component and the support and connection of lower bearing house component, and be arranged in the described resistance to compression tube; Described stator module comprises: stator winding frame and stator winding, and described stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly, is used for the winding stator winding; Described stator winding, winding is on described stator winding frame; Described resistance to compression tube is made of magnetic conductive material, as stator, with the external magnetic circuit as generator.
To achieve these goals, the utility model embodiment also provides a kind of wireless drilling down-hole motor, this motor comprises: upper bearing (metal) house component, lower bearing house component, rotor assembly, stator module and resistance to compression tube, described rotor assembly and stator module be by described upper bearing (metal) house component and the support and connection of lower bearing house component, and be arranged in the described resistance to compression tube; Described stator module comprises: stator winding frame and stator winding, and described stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly, is used for the winding stator winding; Described stator winding, winding is on described stator winding frame; Described resistance to compression tube is made of magnetic conductive material, and as stator.
In addition, the stator winding frame of the dynamo-electric motivation of the generator of the utility model embodiment can become tubular, evenly is provided with the elongated projections of the axial distribution of a plurality of edges tube on the circumference of tube, and stator is around organizing symmetrically around the space between each projection of drum stand.
The wireless drilling of the utility model embodiment with the stator winding frame of downhole generator and motor owing to adopt nonmagnetic substance, therefore when loading and unloading generator or motor rotary shaft, can not produce and inhale the problem of bumping stator skeleton and damaging rotor magnetic steel, be adapted to the requirement that underground work needs regular dismounting; And,, thereby more abundant space is arranged on magnetic Circuit Design than traditional generator or motor because the resistance to compression tube as the part of generator or motor magnetic circuit, makes the maximum outside diameter of generator or motor magnetic circuit become big; In addition, generator of the present utility model or motor also can reduce the teeth groove torque fluctuations.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of existing wireless drilling with downhole generator;
The schematic diagram that Fig. 2-Fig. 4 is assembled together for the generator assembling process part parts among Fig. 1;
Fig. 5 is the A-A cutaway view that wireless drilling shown in Figure 1 is used downhole generator;
Fig. 6 is the A-A cutaway view of the silicon steel sheet stator of generator shown in Figure 1;
Fig. 7 is the wireless drilling generator Structure schematic diagram of the utility model one embodiment;
Fig. 8 is the A-A cutaway view of Fig. 7;
Fig. 9 is the structural representation of the stator winding frame of the utility model embodiment;
The schematic diagram that Figure 10-Figure 13 is assembled together for the generator assembling process part parts among Fig. 7;
Figure 14 is the stator module schematic diagram of generator shown in Figure 7;
Figure 15 is the rotor assembly schematic diagram of generator shown in Figure 7;
Figure 16 is the structural representation of the motor of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, specific embodiment of the utility model is elaborated below in conjunction with accompanying drawing.At this, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, but not as to qualification of the present utility model.
Fig. 7 is the wireless drilling generator Structure schematic diagram of the utility model one embodiment.Fig. 8 is the A-A cutaway view of Fig. 7.As shown in Figures 7 and 8, the generator in the present embodiment comprises: upper bearing (metal) house component 110, stator case (resistance to compression tube) 120, stator module (comprising stator winding 130 and stator winding frame 140), rotor assembly (comprising rotor magnetic steel 150 and rotor core 160) and lower bearing house component (the lower bearing house component comprises lower bearing room 170, lower bearing 180 and lower bearing baffle plate 190).
Described rotor assembly is in the same place by described upper bearing (metal) house component and the support and connection of lower bearing house component with stator module, and described upper bearing (metal) house component and lower bearing house component are arranged in the described resistance to compression tube together.
Stator winding is around on the stator winding frame (or claiming stator skeleton), and the stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly.
Described resistance to compression tube is made of magnetic conductive material, not only plays the protective effect of anti-ambient pressure and anti-slurry erosion, also as the external magnetic circuit of generator, promptly also is used as stator simultaneously simultaneously.Therefore, the resistance to compression tube is called stator case again in the utility model.In the present embodiment, the material of stator winding frame is preferably the high nonmetallic materials of mechanical strength, as PEEK (polyether-ether-ketone) or PPS (polyphenylene sulfide) etc., but the utility model is not limited to this, as long as this material is suitable for use in the generator as the skeleton that is used for the winding stator winding, just all be applicable to the utility model.The shape of this stator winding frame also can be arranged to various ways, for example can be identical with the shape of silicon steel stator in the downhole generator with existing wireless drilling, also can take other shape, as long as be fit to twine stator winding.Compare with the silicon steel stator among Fig. 6, the stator winding frame in the present embodiment need not adopt and laminate technology, therefore is easier to processing.When the stator winding frame in the utility model is processed into the slot form identical with silicon steel temper among Fig. 6, equally also there is the problem of the difficulty that rolls off the production line in stator winding, so present embodiment preferably selects to make the open bobbin bracket structure of stator winding around stator winding frame outside.Fig. 9 is the structural representation of the stator winding frame of the utility model embodiment.As shown in Figure 9,140 one-tenth tubular structures of stator winding frame, the two ends of tube are annular brace part 1401, (be generally and cast out) evenly is set on the circle wall of tube to be had and a plurality ofly (among the figure is 6, also can be 3,4 etc.) elongated projections 1402 of axial distribution, stator winding is symmetrically around the space between each projection of drum stand.Also can be provided with equally distributed little groove on the strip projection, with the stator winding of fixing with the line binding by this groove.According to stator skeleton structure shown in Figure 9,140 adopt the high nonmetallic materials of mechanical strength, can reduce eddy current loss.Compared with the teeth groove stator structure of traditional silicon steel plate stacking, skeleton-type stator structure processing technology is simple, and stator winding rolls off the production line and belongs to open, therefore rolls off the production line than being easier to.
In the present embodiment, resistance to compression tube (stator case) is preferably processed by erosion resistance, permeability magnetic material (as 10# steel or 0Cr17Ni4Cu4Ni, but being not limited to this) that mechanical strength is high, with as the generator external magnetic circuit.The high permeability magnetic material of mechanical strength (as 10# steel or 0Cr17Ni4Cu4Ni) is also adopted in rotor core, and the axle head that rotor core is stretched out directly as the common axis with peripheral equipment (as the down-hole Other Instruments) is.
The assembling process of generator shown in Figure 7 is as follows:
(1) at first upper bearing (metal) house component 110 is pressed into rotor assembly (containing rotor magnetic steel 150 and rotor core 160), effect such as Figure 10 after this step assembling.
(2) stator module (containing stator winding 130 and stator skeleton 140) of packing into then, effect such as Figure 11 after this step assembling.
(3) the lower bearing room 170 of packing into then, the effect after the assembling such as Figure 12.
(4) be pressed into lower bearing 180 then, the lower bearing baffle plate 190 of packing into, effect such as Figure 13 after this step assembling.Attention owing to adopted nonmetallic materials stator skeleton 140, can not produce rotor assembly and inhale the problem that stator skeleton 140 damages rotor magnetic steel of bumping in this process.
(5) at last the assembly after the assembling shown in Figure 13 is made the as a whole stator case (resistance to compression tube) 120 of filling in.Form the general assembly structure of generator as shown in Figure 7.
Unloading process then in contrast.From disassembly process as can be seen, the generator easy disassembly of the utility model embodiment adapts to the characteristics that oil drilling cleans with the frequent dismounting of downhole instrument needs very much.
Figure 14 and Figure 15 are respectively stator module and rotor assembly figure.
Adopted the generator calculations air gap of stator skeleton structure bigger in the utility model (about 4.8mm), air gap flux density B δ less (about 0.3T).And the utility model directly utilizes stator case (resistance to compression tube) 120 (monolateral thick about 5mm) as external magnetic circuit, even stator case material magnetic permeability is lower, its saturation flux density also can reach about 0.5T, and because the calculating air gap is bigger, magnetic potential mainly drops to be calculated on the air gap, and so the shortcoming that stator case material magnetic permeability is lower is little to the generator performance influence.Opposite, the erosion resistance of stator case material, the characteristics that mechanical strength is high make that the practicality of stator case (resistance to compression tube) is better.
As can be seen from Figure 15, rotor magnetic steel 150 is embedded in the rotor core 160, and the high permeability magnetic material of mechanical strength is adopted in rotor core 160.The axle head that rotor core 160 is stretched out directly as the common axis of down-hole Other Instruments is.For example, when being applied in the slurry generator, can be converted into electric energy to the mechanical energy of wheel rotation, as the part of wireless drilling inclinometers downhole instrument string; When being applied in the continuous wave rotary valve pulser, the moment of scalable rotary valve rotating shaft; Can also measure the rotating speed of slurry generator rotating shaft in addition, be used for passing under the wireless drilling reception of order.
Generator unit stator winding of the present utility model adopts three-phase Y shape or Δ shape connection, also can be two-phase or multiphase stator winding, and same structure can also be worked as brushless DC motor conversely and use.Figure 16 is the structural representation that the utility model embodiment uses as motor.As shown in figure 16, the motor of present embodiment comprises: upper bearing (metal) house component 210, stator case (resistance to compression tube) 220, stator module (comprising stator winding 230 and stator winding frame 240), rotor assembly (comprising rotor magnetic steel 250 and rotor core 260), lower bearing house component (the lower bearing house component comprises lower bearing room 270, lower bearing 280 and lower bearing baffle plate 290), and angular position pick up 300.
Described rotor assembly is in the same place by described upper bearing (metal) house component and the support and connection of lower bearing house component with stator module, and described upper bearing (metal) house component and lower bearing house component are arranged in the described resistance to compression tube together.
Stator winding is around on the stator winding frame, and the stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly.
Described resistance to compression tube is made of magnetic conductive material, not only plays the protective effect of opposing ambient pressure, also is used as stator simultaneously, as the external magnetic circuit of generator.
Motor that present embodiment provides and angular position pick up are formed servo system and are constituted motor-driven rotary valve pulser, realize the pressure wave of different shape.
In sum, the downhole generator that the utility model embodiment provides/motor adopts inner rotor core, and rotor assembly (containing magnet steel) is in the inside rotation, and stator module (containing winding) is static in the outside; Stator adopts skeleton construction, and stator winding is on the skeleton of the high nonmetallic materials processing of mechanical strength, and the stator case (resistance to compression tube) that utilizes erosion resistance, permeability magnetic material processing that mechanical strength is high is as the generator external magnetic circuit; The high permeability magnetic material of mechanical strength is also adopted in rotor core, and the axle head that rotor core is stretched out directly as the common axis of down-hole Other Instruments is.Downhole generator/motor of the utility model embodiment can have following beneficial effect:
(1) although the down-hole is elongated with the electric generator/electric motor structure, owing to adopt no skeleton-type stator structure unshakable in one's determination, stator winding constitutes stator module in skeleton, roll off the production line to belong to open, and is very simple;
(2) the high nonmetallic materials of stator skeleton material selection mechanical strength can not produce to inhale when the rotating shaft of dismounting electric generator/electric motor and bump the problem that stator skeleton damages rotor magnetic steel, are adapted to the requirement that downhole electrical motor/motor needs regular dismounting;
(3) the resistance to compression tube is as the part of electric generator/electric motor magnetic circuit, makes the maximum outside diameter of electric generator/electric motor magnetic circuit become big (as becoming Φ 70), than the electric generator/electric motor stator form of silicon steel plate stacking more abundant space arranged on magnetic Circuit Design;
(4) downhole generator/motor of providing of the utility model can reduce the teeth groove torque fluctuations significantly.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; and be not used in and limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. wireless drilling downhole generator, comprise upper bearing (metal) house component, lower bearing house component, rotor assembly, stator module and resistance to compression tube, described rotor assembly and stator module are by described upper bearing (metal) house component and the support and connection of lower bearing house component, and be arranged in the described resistance to compression tube, it is characterized in that:
Described stator module comprises:
The stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly, is used for the winding stator winding; And
Stator winding, winding is on described stator winding frame;
Described resistance to compression tube is made of magnetic conductive material, as stator, with the external magnetic circuit as generator.
2. wireless drilling downhole generator according to claim 1 is characterized in that:
Described stator winding is put up tubular.
3. wireless drilling downhole generator according to claim 2 is characterized in that:
Evenly be provided with the elongated projections of the axial distribution of a plurality of edges tube on the circumference of described tube, stator winding is symmetrically around the space between each projection of drum stand.
4. wireless drilling downhole generator according to claim 1 is characterized in that:
Described non-magnetic material is meant nonmetallic materials.
5. wireless drilling downhole generator according to claim 1 is characterized in that:
Described rotor assembly comprises rotor magnetic steel and rotor core, and wherein the axle head of rotor core stretches out, and as the common axis with peripheral equipment is.
6. wireless drilling down-hole motor, comprise upper bearing (metal) house component, lower bearing house component, rotor assembly, stator module and resistance to compression tube, described rotor assembly and stator module are by described upper bearing (metal) house component and the support and connection of lower bearing house component, and be arranged in the described resistance to compression tube, it is characterized in that:
Described stator module comprises:
The stator winding frame is made of the non-magnetic material, is sheathed on the described rotor assembly, is used for the winding stator winding; And
Stator winding, winding is on described stator winding frame;
Described resistance to compression tube is made of magnetic conductive material, and as stator.
7. wireless drilling down-hole motor according to claim 6 is characterized in that:
Described stator winding is put up tubular.
8. wireless drilling down-hole motor according to claim 7 is characterized in that:
Evenly be provided with the elongated projections of the axial distribution of a plurality of edges tube on the circumference of described tube, stator winding is symmetrically around the space between each projection of drum stand.
9. wireless drilling down-hole motor according to claim 6 is characterized in that:
Described non-magnetic material is meant nonmetallic materials.
10. wireless drilling down-hole motor according to claim 6 is characterized in that:
Described rotor assembly comprises rotor magnetic steel and rotor core, and wherein the axle head of rotor core stretches out, and as the common axis with peripheral equipment is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200785986U CN201163731Y (en) | 2008-01-18 | 2008-01-18 | Wireless drill-followed down-hole generator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200785986U CN201163731Y (en) | 2008-01-18 | 2008-01-18 | Wireless drill-followed down-hole generator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163731Y true CN201163731Y (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200785986U Expired - Lifetime CN201163731Y (en) | 2008-01-18 | 2008-01-18 | Wireless drill-followed down-hole generator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163731Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233589A (en) * | 2016-12-21 | 2018-06-29 | 航天科工惯性技术有限公司 | A kind of mud pulse generator high-power generator |
| CN109510422A (en) * | 2018-11-01 | 2019-03-22 | 贝兹维仪器(苏州)有限公司 | A kind of electromagnetic drive motor and rotary steering drilling tool |
-
2008
- 2008-01-18 CN CNU2008200785986U patent/CN201163731Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233589A (en) * | 2016-12-21 | 2018-06-29 | 航天科工惯性技术有限公司 | A kind of mud pulse generator high-power generator |
| CN109510422A (en) * | 2018-11-01 | 2019-03-22 | 贝兹维仪器(苏州)有限公司 | A kind of electromagnetic drive motor and rotary steering drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |