CN201570926U - Rotor structure for 24-pole permanent magnetic submersible motor - Google Patents
Rotor structure for 24-pole permanent magnetic submersible motor Download PDFInfo
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- CN201570926U CN201570926U CN200920221778XU CN200920221778U CN201570926U CN 201570926 U CN201570926 U CN 201570926U CN 200920221778X U CN200920221778X U CN 200920221778XU CN 200920221778 U CN200920221778 U CN 200920221778U CN 201570926 U CN201570926 U CN 201570926U
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Abstract
The utility model relates to a rotor structure for a 24-pole permanent magnetic submersible motor, which is characterized in that a plurality of rotor units are arranged on a rotor shaft in the axial direction, wherein each unit is provided with a magnetic pole which is formed by superimposing a tubular magnet yoke, a magnetic steel and a stamped steel, the tubular magnet yoke is fixed on the surface of the rotor shaft through a key, 24 rectangular magnetic steels are symmetrically distributed on the surface of the tubular magnet yoke, the upper surface of each magnetic steel is respectively provided with the magnetic pole, each magnetic pole is provided with an open conducting-bar groove, two sides of each magnetic steel and each magnetic pole are provided with a copper magnetic-insulation end ring, the inner edge port of each end ring is respectively joined with lug bosses on two ends of the tubular magnet yoke, and 48 open holes and conducting bars with corresponding positions are arranged at intervals on each end ring. With the tubular magnet yoke, the rotor shaft really becomes a composite shaft, so the torsional strength of the rotor shaft is increased. The copper end rings and the conducting bars form a rotor cage, so not only the permanent magnetic motor has self-starting function, but also the rotor unit has the integrity which is convenient to use in a combination way. The rotor structure has the advantages that the structure is reasonable, and the rotor is particularly applicable to the 12-pole permanent magnetic submersible motor rotor.
Description
Technical field
The utility model belongs to the permanent magnetism submersible electric machine with oil, particularly relates to a kind of rotor structure that is used for 24 utmost point permanent magnetism submersible electric machine with oils.
Background technology
In recent years, the single-screw (single screw) pump oil recovery technique is developed rapidly, this technology can remedy the deficiency of " machine of kowtowing ", be applicable to the oil well that sand content is big, viscosity is high, straight well, inclined shaft, horizontal well, middle shallow well, stripper well, outlying oil well, heavy oil wells, single-screw (single screw) pump has substituted " machine of kowtowing " equipment and centrifugal submersible electric pump gradually, becomes the preferred unit in such oil field.
At present, the single-screw (single screw) pump motor has two types, and one type is the high speed submersible electric machine with oil that adopts gear reduction, and another kind of type is the direct driving low-speed oil submersible motor of exempting from reductor, and its motor speed is commonly below 500 rev/mins.For the efficient of single-screw (single screw) pump, the rotating speed that requires directly to drive low-speed oil submersible motor be 100-300 rev/min comparatively suitable, the low-speed oil submersible motor of therefore developing this range of speeds has become the focus of present stage.
According to the principle that rotating magnetic field rotating speed and magnetic pole of the stator logarithm are inversely proportional to, the stator and the corresponding higher slow-speed of revolution that then can realize motor of rotor magnetic pole logarithm.Obviously adopt its rotating speed of low-speed oil submersible motor of self-running 24 magnetic pole logarithms can satisfy the high efficiency requirement of single-screw (single screw) pump, the working method that directly drives single-screw (single screw) pump also helps simplified apparatus.
In the known technology, the utility model of notification number CN2541988 " self-starting permanent magnet formula synchronous motor " discloses following technical scheme, rotor core is formed by stacking by the multi-disc rotor punching, the periphery upper punch of rotor punching has a plurality of opening sliver grooves or the sliver groove of remaining silent, sliver be embedded in opening sliver groove or the sliver groove of remaining silent in, opening sliver groove or the inboard symmetry of the sliver groove of remaining silent have many to U font air every magnetic magnet steel groove, magnet steel is positioned at the bottom of U font air every magnetic magnet steel groove, the center of rotor punching has axis hole, and iron core sleeve is on axle.
Technique scheme discloses sliver groove and sliver, makes permanent-magnet synchronous electric motor have self-starting function.
The utility model of notification number CN2192975 " composite type permanent magnet machine rotor " discloses following technical scheme, a kind of composite type permanent magnet machine rotor, it is to connect the uniform circular plate type magnetic isolation plate that has cylindrical breach and radial opening groove at the length direction of axle with key, the uniform magnetic pole that is fan-like pattern substantially of fixed-circumference direction between each magnetic isolation plate, the spacing of magnetic pole equates with the open slot width of magnetic isolation plate, and the magnet steel that together support is pushed down with slot wedge constitutes the corresponding number annular respectively every magnetic cavity between magnetic pole, magnetic isolation plate, the axle three.Can be the space of nature in magnetic cavity, also can be to load non-magnet material.
Technique scheme is with the magnetic pole section of being divided into by the circular plate type magnetic isolation plate, it is the effective measure that overcomes the rotor leakage phenomenon, but the circular plate type magnetic isolation plate that is provided with is the only parts that bear magnet steel and magnetic pole total weight and rotate the centrifugal force that produces at interval, when embodiment is bipolar machine if intensity still can, the intensity that is covered with the circular plate type magnetic isolation plate of open slot when 24 magnetic pole logarithms may not be reliable.The staggered phenomenon of polarity of the magnetic field when the armature spindle torsional deflection, will take place in axle thin (about 30mm) and long (about the 5000mm) of especially existing submersible electric machine with oil, influences exerting oneself of motor greatly.
Summary of the invention
The utility model is to disclose a kind of rotor structure that is used for 24 utmost point permanent magnetism submersible electric machine with oils for the technical problem that solves the incompatible 24 magnetic pole logarithm submersible electric machine with oil rotors needs of the disclosed technical scheme of the utility model that notification number is CN2192975 " composite type permanent magnet machine rotor ".
The utility model is taked following technical scheme for achieving the above object: this rotor structure is by armature spindle and rotor bearing, magnet steel, magnetic pole and sliver are formed, feature is, armature spindle is axially arranged with each rotor unit, described rotor unit is provided with tubular yoke, the magnetic pole of magnet steel and the superimposed formation of punching, tubular yoke is fixed in the armature spindle surface by key, the cross section is that 24 magnet steel of rectangle are symmetrically distributed in tubular yoke surfaces, each magnet steel upper surface is respectively equipped with magnetic pole, each magnetic pole is provided with opening sliver groove, the both sides end face of described each magnet steel and magnetic pole is provided with copper with its fluid-tight engagement every the magnetic end ring, each copper bead in the magnetic end ring engages with the boss at tubular yoke two ends respectively, described each copper is every magnetic end ring periphery corresponding 48 open pores in position that have been spacedly distributed, 24 wherein alternate open pores are corresponding with the opening sliver groove of each magnetic pole respectively, described both sides copper is respectively equipped with the sliver that two ends are end cap every corresponding 48 open pores in magnetic end ring position, 24 wherein alternate slivers respectively with the corresponding joint of opening sliver groove of each magnetic pole.
The utility model can also be taked following technical measures:
Described cross section is that the magnet steel one side minor face of rectangle engages with tubular yoke surfaces, and the magnet steel minor face is a magnetic pole, and the magnetic pole that faces magnet steel mutually is opposite.
Described tubular yoke surfaces is symmetrically distributed with 24 magnet steel huggings.
Described magnetic pole is trapezoidal, and its base is provided with opening sliver groove.
The beneficial effects of the utility model and advantage are: the armature spindle surface key of this rotor structure is fixed with tubular yoke, makes armature spindle become composite shaft in fact, thereby has strengthened the torsional strength of armature spindle.The armature spindle torsional strength is particularly important in the rotor of 24 utmost point permanent magnetism submersible electric machine with oils, and it can guarantee each magnetic pole linearity in the axial direction, effectively avoids because of polarity of the magnetic field the reduction of exerting oneself of the staggered motor that causes taking place.The magnet steel of this rotor structure is supported by the tubular yoke of bottom surface, is pressed by magnetic pole above, and is therefore fixing reliable.The copper end ring of this rotor structure and sliver form mouse cage, not only make magneto have self-starting function, the globality that rotor unit is had be convenient to be used in combination.The utlity model has outstanding advantage rational in infrastructure, as to be specially adapted to 24 utmost point permanent magnetism submersible electric machine with oil rotors.
Description of drawings
Accompanying drawing 1 is a rotor unit example structure partial cutaway schematic of the present utility model.
Accompanying drawing 2 is rotor example structure generalized sections of the present utility model.
Number in the figure: 1 armature spindle, 2 keys, 3 tubular yokes, 3-1 boss, 4 magnet steel, 5 magnetic poles, 6 slivers, 6-1 end cap, 7 bronze medals be every the magnetic end ring, 8 rotor bearings, 9 rotor snares, 10 thrust rings.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, rotor unit is made of every magnetic end ring 7 and sliver 6 the superimposed magnetic pole that constitutes 5 of tubular yoke 3, magnet steel 4 and punching, copper.The tubular yoke 3 of steel is fixed in armature spindle 1 surface by key 2, and the cross section is that 24 magnet steel 4 of rectangle are symmetrically distributed in tubular yoke surfaces, and the inboard minor face of each magnet steel engages with tubular yoke surfaces, and two minor faces of magnet steel are magnetic pole, and the magnetic pole that faces magnet steel mutually is opposite.Each magnet steel 4 upper surface is respectively equipped with trapezoidal magnetic pole 5, the base of each trapezoidal magnetic pole is provided with opening sliver groove, the both sides end face of each magnet steel 4 and magnetic pole 5 is provided with copper with its fluid-tight engagement every magnetic end ring 7, and each copper bead in magnetic end ring 7 engages with the boss 3-1 at tubular yoke 3 two ends respectively.Each copper is every magnetic end ring 7 peripheries corresponding 48 open pores in position that have been spacedly distributed, and 24 wherein alternate open pores are corresponding with the opening sliver groove of each magnetic pole respectively.Both sides copper is respectively equipped with the sliver 6 that end cap 6-1 was dashed or was welded as in the two ends riveting every corresponding 48 open pores in magnetic end ring 7 positions, 24 wherein alternate slivers respectively with the corresponding joint of opening sliver groove of each magnetic pole.
Among Fig. 1, tubular yoke 3 surfaces are symmetrically distributed with 24 magnet steel huggings, crouch and be loaded on the magnet steel hugging in the magnet steel bottom.
As shown in Figure 2, rotor is formed by armature spindle 1, rotor bearing 8 with by each rotor unit shown in Figure 1 that key 2 is axially fixed at rotor bearing 8 both sides armature spindles, and the quantity of rotor unit is determined according to power of motor.
Among Fig. 2, the formation of each rotor unit is identical, they comprise tubular yoke 3, magnet steel 4, magnetic pole 5, sliver 6 and copper every magnetic end ring 7, and the copper that is positioned at each rotor unit combination two ends of rotor bearing 8 both sides has the thickness of increasing every magnetic end ring 7, so that improve the intensity of rotor unit combination.In addition, the magnet steel 4 of each rotor unit is made of two magnet steel butt joints.The rotor snare 9 of Fig. 2 rotor and thrust ring 10 adopt prior art.
Claims (4)
1. rotor structure that is used for 24 utmost point permanent magnetism submersible electric machine with oils, by armature spindle and rotor bearing, magnet steel, magnetic pole and sliver are formed, it is characterized in that: armature spindle is axially arranged with each rotor unit, described rotor unit is provided with tubular yoke, the magnetic pole of magnet steel and the superimposed formation of punching, tubular yoke is fixed in the armature spindle surface by key, the cross section is that 24 magnet steel of rectangle axially are symmetrically distributed in tubular yoke surfaces, each magnet steel upper surface is respectively equipped with magnetic pole, each magnetic pole is provided with opening sliver groove, the both sides end face of described each magnet steel and magnetic pole is provided with copper with its fluid-tight engagement every the magnetic end ring, each copper bead in the magnetic end ring engages with the boss at tubular yoke two ends respectively, described each copper is every magnetic end ring periphery corresponding 48 open pores in position that have been spacedly distributed, 24 wherein alternate open pores are corresponding with the opening sliver groove of each magnetic pole respectively, described both sides copper is respectively equipped with the sliver that two ends are end cap every corresponding 48 open pores in magnetic end ring position, 24 wherein alternate slivers respectively with the corresponding joint of opening sliver groove of each magnetic pole.
2. rotor structure according to claim 1 is characterized in that: described cross section is that the magnet steel one side minor face of rectangle engages with tubular yoke surfaces, and the magnet steel minor face is a magnetic pole, and the magnetic pole that faces magnet steel mutually is opposite.
3. rotor structure according to claim 1 is characterized in that: described tubular yoke surfaces is symmetrically distributed with 24 magnet steel huggings.
4. rotor structure according to claim 1 is characterized in that: described magnetic pole is trapezoidal, and its base is provided with opening sliver groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920221778XU CN201570926U (en) | 2009-10-30 | 2009-10-30 | Rotor structure for 24-pole permanent magnetic submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920221778XU CN201570926U (en) | 2009-10-30 | 2009-10-30 | Rotor structure for 24-pole permanent magnetic submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570926U true CN201570926U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920221778XU Expired - Fee Related CN201570926U (en) | 2009-10-30 | 2009-10-30 | Rotor structure for 24-pole permanent magnetic submersible motor |
Country Status (1)
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| CN (1) | CN201570926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055261A (en) * | 2009-10-30 | 2011-05-11 | 天津荣亨集团股份有限公司 | Rotor structure of 24-pole permanent-magnet submersible motor |
-
2009
- 2009-10-30 CN CN200920221778XU patent/CN201570926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055261A (en) * | 2009-10-30 | 2011-05-11 | 天津荣亨集团股份有限公司 | Rotor structure of 24-pole permanent-magnet submersible motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111030 |