CN102710079B - Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor - Google Patents
Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor Download PDFInfo
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- CN102710079B CN102710079B CN201210184131.0A CN201210184131A CN102710079B CN 102710079 B CN102710079 B CN 102710079B CN 201210184131 A CN201210184131 A CN 201210184131A CN 102710079 B CN102710079 B CN 102710079B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 42
- 238000001816 cooling Methods 0.000 title abstract description 30
- 230000009977 dual effect Effects 0.000 title abstract 4
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 57
- 238000003466 welding Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 24
- 238000001704 evaporation Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 11
- 238000009423 ventilation Methods 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000005347 demagnetization Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 18
- 238000012856 packing Methods 0.000 description 10
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
The invention discloses a permanent magnet synchronous motor with a dual annular rotation heat tube for cooling a rotor, which is composed of a base end cover component, a motor base component, a cooling end cover component, a rotor component and a protective component. When the motor is in operation, heat generated by the rotor is conducted onto the outer surface of a rotating shaft sleeve by a dual annular rotation heat tube cooler; when a screw pump oil pumping unit is driven, the heat conducted onto the outer surface of the rotating shaft sleeve is radiated into the atmosphere in a natural air cooling manner, and a fan assists in convective circulation, so as to quickly cool a rotor permanent magnet and avoid demagnetization caused by over-temperature rising; and heat generated by the copper loss and iron loss of a stator is radiated into the atmosphere via cooling fins on the outer surface of the motor base. When the permanent magnet synchronous motor with the dual annular rotation heat tube for the cooling rotor is taken as a universal motor, heat conducted onto the outer surface of the rotating shaft sleeve is radiated by an air flow generated by the fan at a high rotation speed, and the air flow flows through the ventilation slots of the cooling end cover component to cool the ventilation fins on the outer surface of the motor base.
Description
Technical field
The present invention is a kind of permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor, and it relates to a kind of motor being applied in plant equipment, particularly relates to a kind of permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor.
Background technology
In permanent magnet synchronous motor, due to rotor and stator field synchronous rotary, often ignore the eddy current loss in rotor.In fact, the harmonic wave magnetomotive force that the harmonic current in the stator tooth effect of grooves, the magnetomotive non-sine distribution of winding and winding produces also can cause eddy current loss in rotor permanent magnet and rotor yoke.Although compare with iron loss with stator copper loss, rotor eddy current loss is very little,, rotor dispersing heat condition is bad, and eddy current loss may cause very high temperature rise, thereby causes permanent magnet demagnetization.The ferrite permanent-magnet materials adopting with small power motor is compared, and the Nd-Fe-Bo permanent magnet material that high power motor adopts has larger conductivity and lower Curie temperature, more easily makes permanent magnet synchronous motor scrap because permanent magnet demagnetizes.
Surface-mounted rotor in permanent magnet synchronous motor is a kind of technology of maturation, the permanent magnet of tile shape sticks on rotor surface, between rotor yoke and rotating shaft, there is toroidal cavity, rotor yoke sectional area is less, the eddy current loss producing is also less, but the heat that rotor permanent magnet and rotor yoke produce is difficult to conduct by rotating shaft.Degree of protection is higher, particularly requires explosion-proof motor, and its rotor and stator winding are all enclosed in airtight space, and rotor dispersing heat condition is more severe.
Surface-mounted rotor is applicable to the motor of the large torque of the slow-speed of revolution, for example the direct-drive type permanent magnet synchronous motor of Screw Pump of Oil Field oil pumper.Surface-mounted rotor is installed after non-magnetic metal protective sleeve at the outer surface of rotor permanent magnet, eliminate the adhesion strength impact of centrifugal force on rotor permanent magnet, can make surface-mounted rotor be applicable to high-revolving motor, for example, drive the permanent magnet synchronous motor of water pump and blower fan.The output shaft of real mandrel type motor is real mandrel, and the drive motor of Screw Pump of Oil Field oil pumper must be air-cored axis, and the polished rod of screw pump is passed from the intermediate throughholes of motor rotary shaft.
As the main power-saving measures in oil field, single-screw (single screw) pump oil pumper is replacement beam pumping unit progressively.Also by the belt transmissioning mode of AC asynchronous motor, the kind of drive of directly driving to permanent magnet synchronous motor changes the type of drive of screw-pump oil extractor.Had at present the driving unit on screw pump of direct-drive type permanent magnet synchronous motor using, direct-drive type permanent magnet synchronous motor polished rod direct and screw pump is connected and connects, and does not need to adopt decelerator, so without power transmission loss, belong to high-efficiency energy-saving motor.Screw-pump oil extractor is positioned at field, and requires explosion-proof dustproof.Because the cooling effect of motor rotor fan under the slow-speed of revolution is undesirable, just at operating motor, all adopt the cooling mode of totally-enclosed natural wind at present, there is the rotor permanent magnet bad problem of dispelling the heat.
For driving the permanent magnet synchronous motor of water pump and the contour rotating speed equipment of blower fan, although the support that motor rotor fan can cooling permanent magnet synchronous motor, but direct cooled rotor permanent magnet, and the heat that rotor permanent magnet and rotor yoke eddy current loss produce during high rotating speed is larger, rotor dispersing heat condition is very severe.
Summary of the invention
The object of the invention is to overcome common permanent-magnet synchronous motor rotor radiating condition bad, the defect of easily scrapping because of permanent magnet demagnetization, provides a kind of permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor.Embodiment of the present invention are as follows:
The total feature of the present invention is that the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is comprised of pedestal end cap parts, support component, colling end cover, rotor part and protecting component.Pedestal end cap parts and colling end cover are arranged on respectively the two ends of support component, and rotor part is arranged on the axis of pedestal end cap parts, support component and colling end cover, and protecting component is arranged on colling end cover and rotor part.
When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is used for drive screw pump oil pumper, the polished rod of screw-pump oil extractor is perpendicular to ground, polished rod lower end connects with screw pump, polished rod upper end is passed from the intermediate throughholes of rotating shaft, by square clip, connect with the output shaft keyway of rotating shaft, pedestal end cap parts are arranged on blowout preventer.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as real mandrel type motor, and the output shaft keyway of rotating shaft connects with load equipment.Vertical mounting means, is arranged on equipment by pedestal end cap parts.Horizontal mounting means is processed with footing on support, by footing, is arranged on equipment.
Rotor part is comprised of rotor welding part, bearing, permanent magnet magnet steel, rotary piston sealing ring and Crossed Circle rotating heat pipe cooler.Rotor welding part is welded together by rotating shaft, rotor end plates, rotor yoke, shaft sleeve.Rotating shaft for motor of oil extractor is air-cored axis, and the rotating shaft of real mandrel type motor is real mandrel.
Rotating shaft outer surface has shaft shoulder welding ring, rotating shaft tenon, rotating shaft welding ring successively, in one end of rotating shaft, has output shaft keyway.Along the circumference of rotating shaft outer surface several rotating shaft tenons that distribute successively, rotating shaft tenon is strip boss, between each rotating shaft tenon, is liquid return trough.
Rotor end plates is annular, and there is a small through hole on rotor end plates centre bore side, and liquid injection pipe welds together by this through hole and rotor end plates.Shaft sleeve is cylindrical shape, and there is a sleeve pipe end ring one end.Rotor yoke is cylindrical shape, and permanent magnet magnet steel is tile shape.
Rotor end plates centre bore is welded on the outer surface of the middle shaft shoulder welding ring of rotating shaft, shaft sleeve has one end of sleeve pipe end ring to be welded on the outer surface of rotating shaft intermediate rotary shaft tenon, the rotating shaft welding ring of the other end and rotating shaft welds together, the outside welding of rotor yoke one end and rotor end plates, the outside of the other end and sleeve pipe end ring welds together, and rotor welding part forms airtight cavity.Wherein, by the evaporation cavity of the sleeve pipe end ring makeup ring shape of rotating shaft, rotor end plates, rotor yoke, rotating shaft tenon, shaft sleeve, by rotating shaft, rotating shaft tenon, shaft sleeve, form annular condensation chamber, between evaporation cavity and condensation chamber, by several liquid return troughs, be communicated with.Evaporation cavity, condensation chamber, liquid return trough form Crossed Circle rotating heat pipe cooler.In Crossed Circle rotating heat pipe cooler, after filling work medium for heat pipe, at the press seal place of liquid injection pipe, with pressing tongs, flatten, and at liquid injection port welded seal.
The cross section of rotary piston sealing ring is L-shaped, surfaces externally and internally respectively has a groove, O-ring seals one and O-ring seals two are installed respectively, internal thread hole on rotary piston sealing ring is provided with holding screw and nut, rotary piston sealing ring is fixed in rotating shaft, and the inner chamber of the sealing ring sleeve pipe on rotary piston sealing ring is used for holding liquid injection port.
The wall thickness of liquid injection pipe is less, if liquid injection pipe is revealed work medium for heat pipe, rotary piston sealing ring can guarantee that work medium for heat pipe can not flow in stator winding, thereby avoids destroying stator winding insulation.
The rotor yoke outer surface of rotor part is pasted several permanent magnet magnet steel successively, forms rotor field.Rotary piston sealing ring is arranged on rotor part, and respectively there is a bearing at rotor part two ends.
On rotor part, at the bearing of colling end cover one end, by shaft sleeve and rotating shaft tenon, support force is delivered in rotating shaft, thereby guarantees that Crossed Circle rotating heat pipe cooler can not affect the structural strength of rotor welding part.
Pedestal end cap parts are comprised of pedestal end cap, end cap seal circle, lip-type packing, pressure ring, circlip for hole, are arranged on one end of support component by screw, with end cap seal circle, seal.In the annular cavity of pedestal end cap, there is one group of groove, for lip-type packing, pressure ring and circlip for hole are installed.On pedestal end cap, there is a boss inner chamber, for the bearing outer ring on rotor part is installed.
Colling end cover is comprised of cooling end cap, end cap seal circle, lip-type packing, pressure ring, circlip for hole, is arranged on the other end of support component by screw, with end cap seal circle, seals.In the annular cavity of cooling end cap, there is one group of groove, for lip-type packing, pressure ring and circlip for hole are installed.At colling end, covered a boss inner chamber, for the bearing outer ring on rotor part is installed.The outer surface of cooling end cap is uniformly distributed several ventilation slots, and guiding fan airstream is cooling to support component.
Support component is comprised of support, piston ring, core clamping-plate, stator core, stator winding, positioning key bar, by the support screwed hole on support, with screw and pedestal end cap parts and colling end cover, is installed together.Support inner surface has a support keyway, and positioning key bar is installed.Stator core is formed by stacking by several stator stampings, respectively there is a slice core clamping-plate at stator core two ends, between pressing plate keyway, iron core keyway and support keyway, with positioning key bar, accurately locate, piston ring, by the interference fit with support inner surface, is fixed on core clamping-plate and stator core in support inner chamber.Stator winding is installed in winding slot of core, and the line outlet groove of the winding joint of stator winding from support passes, and is installed in terminal box.Support outer surface is uniform-distribution with several fin.
Protecting component is comprised of tarpaulin, fan, fan housing, protective cover.Tarpaulin is annular, is arranged on shaft sleeve, and fan is arranged in rotating shaft.Fan housing is arranged on colling end cover with screw.On fan housing, have several air vent holes, when the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is used for drive screw pump oil pumper, air vent hole distributes at the radial circumference of fan housing, and is axially having a centre bore, increases protective cover and protects.The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as real mandrel type motor, and air vent hole distributes at the axial cross section of fan housing.
Protective cover is annular, with screw, dead ring is fixed on protective cover, makes the raw strain of elastomeric flex environment-development, and protective cover is arranged in rotating shaft.
In Crossed Circle rotating heat pipe cooler, the work medium for heat pipe of filling has liquid working media and gaseous working medium, after liquid working media is heated, is vaporizated into gaseous working medium, after gaseous working medium is cooling, is condensed into liquid working media.When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor moves, rotor part is according to rotor direction rotation, axis and the rotor axis of Crossed Circle rotating heat pipe cooler are overlapping, under the effect of centrifugal force, liquid working media collects in the inner surface of evaporation cavity cylindrical, forms work liquid pool.The heat that permanent magnet magnet steel and rotor yoke produce is transmitted to the inner surface of evaporation cavity cylindrical, heating work liquid pool, after being heated, liquid working media is vaporizated into gaseous working medium, under the promotion of evaporating pressure, gaseous working medium flow to the inner surface of condensation chamber cylindrical through liquid return trough, heat is transmitted to the outer surface of shaft sleeve, gaseous working medium is condensed into liquid working media at the inner surface of condensation chamber cylindrical, liquid working media is under the acting in conjunction of centrifugal force and liquid working media surface tension of liquid, inner surface along condensation chamber cylindrical, through liquid return trough, be back in the work liquid pool of inner surface of evaporation cavity cylindrical, complete a thermal cycle.
When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is used for drive screw pump oil pumper, because the cooling effect of fan under the slow-speed of revolution is undesirable, the heat that is transmitted to shaft sleeve outer surface is mainly dispersed in atmosphere by the cooling mode of natural wind, fan is assisted convection circulation, utilize the good isothermal performance of heat pipe and very high heat conductivility, cooled rotor permanent magnet magnet steel, avoids demagnetizing because temperature rise is too high rapidly.The heat that stator copper loss and iron loss produce is dispersed in atmosphere by the fin of support outer surface.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as real mandrel type motor, the heat that is transmitted to shaft sleeve outer surface is taken away by the air-flow of fan generation under high rotating speed, air-flow, through the ventilation slot of cooling end cap, carries out cooling to the fin of support outer surface afterwards.
Accompanying drawing explanation
Figure of description is the schematic diagram of direct-drive type permanent magnet synchronous motor rotor of common screw pump oil pumper and the structure chart of the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor.Wherein Fig. 1 is the schematic diagram of the direct-drive type permanent magnet synchronous motor rotor of common screw pump oil pumper.Fig. 2 is Crossed Circle rotating heat pipe cooler principle schematic.Fig. 3 is the axonometric drawing for the permanent magnet synchronous motor of the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 4 is the isometric cutaway view for the permanent magnet synchronous motor of the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 5 is the isometric cutaway view for the rotor part of the permanent magnet synchronous motor of the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 6 is the isometric cutaway view of rotor welding part.Fig. 7 is the isometric cutaway view of rotating shaft and shaft sleeve welding.The rotating shaft axonometric drawing of Tu8Shi air-cored axis.Fig. 9 is the axonometric drawing of shaft sleeve.Figure 10 is the isometric cutaway view of rotor yoke.Figure 11 is the isometric cutaway view of rotor end plates.Figure 12 is the isometric cutaway view of rotary piston sealing ring.Figure 13 is the axonometric drawing of permanent magnet magnet steel.Figure 14 is the axonometric drawing of liquid injection pipe.Figure 15 is the isometric cutaway view of pedestal end cap parts.Figure 16 is the isometric cutaway view of colling end cover.Figure 17 is the isometric cutaway view of protective cover.Figure 18 is the isometric cutaway view of lip-type packing.Figure 19 is the axonometric drawing of pressure ring.Figure 20 is the axonometric drawing of circlip for hole.Figure 21 is the isometric cutaway view of support component.Figure 22 is the axonometric drawing of support.Figure 23 is the axonometric drawing of stator core.Figure 24 is the axonometric drawing of core clamping-plate.Figure 25 is the isometric cutaway view of piston ring.Figure 26 is the isometric cutaway view of the permanent magnet synchronous motor of real mandrel type Crossed Circle rotating heat pipe cooled rotor.
Figure acceptance of the bid is marked with pedestal end cap parts 1, line outlet groove 2, support component 3, colling end cover 4, tarpaulin 5, fan 6, fan housing 7, protective cover 8, rotor part 9, rotating shaft 10, bearing 11, rotor end plates 12, rotor yoke 13, permanent magnet magnet steel 14, shaft sleeve 15, rotary piston sealing ring 16, liquid injection pipe 17, evaporation cavity 18, liquid return trough 19, condensation chamber 20, output shaft keyway 21, liquid injection port 22, press seal place 23, sleeve pipe end ring 24, rotating shaft tenon 25, rotating shaft welding ring 26, shaft shoulder welding ring 27, O-ring seals 1, O-ring seals 2 29, sealing ring sleeve pipe 30, pedestal end cap 31, end cap seal circle 32, lip-type packing 33, pressure ring 34, circlip for hole 35, boss inner chamber 36, cooling end cap 37, elastomeric flex ring 38, dead ring 39, piston ring 40, core clamping-plate 41, stator core 42, stator winding 43, positioning key bar 44, fin 45, support 46, support screwed hole 47, winding joint 48, winding slot of core 49, iron core keyway 50, pressing plate keyway 51, ventilation slot 52, work liquid pool 53, gaseous working medium 54, liquid working media 55, rotor axis 56, rotor direction 57.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to further narration.
With reference to Fig. 3, Fig. 4 and Figure 26, the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is comprised of pedestal end cap parts 1, support component 3, colling end cover 4, rotor part 9 and protecting component.Pedestal end cap parts 1 and colling end cover 4 are arranged on respectively the two ends of support component 3, and rotor part 9 is arranged on the axis of pedestal end cap parts 1, support component 3 and colling end cover 4, and protecting component is arranged on colling end cover 4 and rotor part 9.
With reference to Fig. 5, Fig. 6 and Fig. 7, rotor part 9 is comprised of rotor welding part, bearing 11, permanent magnet magnet steel 14, rotary piston sealing ring 16 and Crossed Circle rotating heat pipe cooler.Rotor welding part is welded together by rotating shaft 10, rotor end plates 12, rotor yoke 13, shaft sleeve 15.For the rotating shaft 10Shi air-cored axis of motor of oil extractor, the rotating shaft 10 of real mandrel type motor is real mandrel.
With reference to Fig. 8, rotating shaft 10 outer surfaces have shaft shoulder welding ring 27, rotating shaft tenon 25, rotating shaft welding ring 26 successively, in one end of rotating shaft 10, have output shaft keyway 21.Along the circumference of rotating shaft 10 outer surfaces several rotating shaft tenons 25 that distribute successively, rotating shaft tenon 25 is strip boss, between each rotating shaft tenon 25, is liquid return trough 19.
With reference to Fig. 9, Figure 10, Figure 11, Figure 13 and Figure 14, rotor end plates 12 is annulars, and there is a small through hole on rotor end plates 12 centre bore sides, and liquid injection pipe 17 welds together by this through hole and rotor end plates 12.Shaft sleeve 15 is cylindrical shapes, and there is a sleeve pipe end ring 24 one end.Rotor yoke 13 is cylindrical shapes, and permanent magnet magnet steel 14 is tile shapes.
With reference to Fig. 5 and Fig. 6, rotor end plates 12 centre bores are welded on the outer surface of rotating shaft 10 middle shaft shoulder welding ring 27, shaft sleeve 15 has one end of sleeve pipe end ring 24 to be welded on the outer surface of rotating shaft 10 intermediate rotary shaft tenons 25, the rotating shaft welding ring 26 of the other end and rotating shaft 10 welds together, the outside welding of rotor yoke 13 one end and rotor end plates 12, the outside of the other end and sleeve pipe end ring 24 welds together, and rotor welding part forms airtight cavity.Wherein the sleeve pipe end ring 24 by rotating shaft 10, rotor end plates 12, rotor yoke 13, rotating shaft tenon 25, shaft sleeve 15 forms annular evaporation cavity 18, by rotating shaft 10, rotating shaft tenon 25, shaft sleeve 15, form annular condensation chamber 20, between evaporation cavity 18 and condensation chamber 20, by several liquid return troughs 19, be communicated with.Evaporation cavity 18, condensation chamber 20, liquid return trough 19 form Crossed Circle rotating heat pipe cooler.In Crossed Circle rotating heat pipe cooler, after filling work medium for heat pipe, at the press seal place of liquid injection pipe 17,23 use pressing tongs flatten, and at liquid injection port 22 welded seals.
With reference to Figure 12, the cross section of rotary piston sealing ring 16 is L-shaped, surfaces externally and internally respectively has a groove, O-ring seals 1 and O-ring seals 2 29 are installed respectively, internal thread hole on rotary piston sealing ring 16 is provided with holding screw and nut, rotary piston sealing ring 16 is fixed in rotating shaft 10, and the inner chamber of the sealing ring sleeve pipe 30 on rotary piston sealing ring 16 is used for holding liquid injection port 22.
With reference to Fig. 5, rotor yoke 13 outer surfaces of rotor part 9 are pasted several permanent magnet magnet steel 14 successively, form rotor field.Rotary piston sealing ring 16 is arranged on rotor part 9, and respectively there is a bearing 11 at rotor part 9 two ends.
With reference to Figure 15, Figure 18, Figure 19 and Figure 20, pedestal end cap parts 1 are comprised of pedestal end cap 31, end cap seal circle 32, lip-type packing 33, pressure ring 34, circlip for hole 35, are arranged on one end of support component 3 by screw, with 32 sealings of end cap seal circle.In the annular cavity of pedestal end cap 31, there is one group of groove, for lip-type packing 33, pressure ring 34 and circlip for hole 35 are installed.On pedestal end cap 31, there is a boss inner chamber 36, for bearing 11 outer rings on rotor part 9 are installed.
With reference to Figure 16, Figure 18, Figure 19 and Figure 20, colling end cover 4 is comprised of cooling end cap 37, end cap seal circle 32, lip-type packing 33, pressure ring 34, circlip for hole 35, by screw, be arranged on the other end of support component 3, with 32 sealings of end cap seal circle.In the annular cavity of cooling end cap 37, there is one group of groove, for lip-type packing 33, pressure ring 34 and circlip for hole 35 are installed.On cooling end cap 37, there is a boss inner chamber 36, for bearing 11 outer rings on rotor part 9 are installed.The outer surface of cooling end cap 37 is uniformly distributed several ventilation slots 52, and guiding fan airstream is cooling to support component 3.
With reference to Figure 21, Figure 22, Figure 23, Figure 24 and Figure 25, support component 3 is comprised of support 46, piston ring 40, core clamping-plate 41, stator core 42, stator winding 43, positioning key bar 44, by the support screwed hole 47 on support 46, with screw and pedestal end cap parts 1 and colling end cover 4, be installed together.Support inner surface has a support keyway, and positioning key bar 44 is installed.Stator core 42 is formed by stacking by several stator stampings, respectively there is a slice core clamping-plate 41 at stator core 42 two ends, between pressing plate keyway 51, iron core keyway 50 and support keyway, with positioning key bar 44, accurately locate, piston ring 40, by the interference fit with support 46 inner surfaces, is fixed on core clamping-plate 41 and stator core 42 in support 46 inner chambers.Stator winding 43 is installed in winding slot of core 49, and the line outlet groove 2 of the winding joint 48 of stator winding 43 from support 46 passes, and is installed in terminal box.Support 46 outer surfaces are uniform-distribution with several fin 45.
With reference to Fig. 4, Figure 26 and Figure 17, protecting component is comprised of tarpaulin 5, fan 6, fan housing 7, protective cover 8.Tarpaulin 5 is annulars, is arranged on shaft sleeve 15, and fan 6 is arranged in rotating shaft 10.Fan housing 7 use screws are arranged on colling end cover 4.On fan housing 7, have several air vent holes, when the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is used for drive screw pump oil pumper, air vent hole distributes at the radial circumference of fan housing 7, and is axially having a centre bore, increases protective cover 8 and protects.The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as real mandrel type motor, and air vent hole distributes at the axial cross section of fan housing 7.
With reference to Fig. 2, in Crossed Circle rotating heat pipe cooler, the work medium for heat pipe of filling has liquid working media 55 and gaseous working medium 54, after liquid working media 55 is heated, be vaporizated into gaseous working medium 54, after gaseous working medium 54 is cooling, be condensed into liquid working media 55.When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor moves, rotor part 9 is according to 57 rotations of rotor direction, axis and the rotor axis 56 of Crossed Circle rotating heat pipe cooler are overlapping, under the effect of centrifugal force, liquid working media 55 collects in the inner surface of evaporation cavity 18 cylindricals, forms work liquid pool 53.The heat that permanent magnet magnet steel 14 and rotor yoke 13 produce is transmitted to the inner surface of evaporation cavity 18 cylindricals, heating work liquid pool 53, after being heated, liquid working media 55 is vaporizated into gaseous working medium 54, under the promotion of evaporating pressure, gaseous working medium 54 flow to the inner surface of condensation chamber 20 cylindricals through liquid return trough 19, heat is transmitted to the outer surface of shaft sleeve 15, gaseous working medium 54 is condensed into liquid working media 55 at the inner surface of condensation chamber 20 cylindricals, liquid working media 55 is under the acting in conjunction of centrifugal force and liquid working media surface tension of liquid, inner surface along condensation chamber 20 cylindricals, through liquid return trough 19, be back in the work liquid pool 53 of inner surface of evaporation cavity 18 cylindricals, complete a thermal cycle.
When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is used for drive screw pump oil pumper, because the cooling effect of fan under the slow-speed of revolution 6 is undesirable, the heat that is transmitted to shaft sleeve 15 outer surfaces is mainly dispersed in atmosphere by the cooling mode of natural wind, the auxiliary convection circulation of fan 6, utilize the good isothermal performance of heat pipe and very high heat conductivility, cooled rotor permanent magnet magnet steel 14, avoids demagnetizing because temperature rise is too high rapidly.The heat that stator copper loss and iron loss produce is dispersed in atmosphere by the fin 45 of support 46 outer surfaces.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as real mandrel type motor, the heat that is transmitted to shaft sleeve 15 outer surfaces is taken away by the air-flow of 6 generations of fan under high rotating speed, air-flow, through the ventilation slot 52 of cooling end cap 37, carries out cooling to the fin 45 of support 46 outer surfaces afterwards.
Claims (2)
1. a permanent magnet synchronous motor for Crossed Circle rotating heat pipe cooled rotor, is characterized in that being comprised of pedestal end cap parts (1), support component (3), colling end cover (4), rotor part (9) and protecting component; Pedestal end cap parts (1) and colling end cover (4) are arranged on respectively the two ends of support component (3), rotor part (9) is arranged on the axis of pedestal end cap parts (1), support component (3) and colling end cover (4), and protecting component is arranged on colling end cover (4) and rotor part (9);
Rotor part (9) is comprised of rotor welding part, bearing (11), permanent magnet magnet steel (14), rotary piston sealing ring (16) and Crossed Circle rotating heat pipe cooler; Rotor welding part is welded together by rotating shaft (10), rotor end plates (12), rotor yoke (13), shaft sleeve (15); Rotating shaft (10) for motor of oil extractor is air-cored axis;
Rotating shaft (10) outer surface has shaft shoulder welding ring (27), rotating shaft tenon (25), rotating shaft welding ring (26) successively, in one end of rotating shaft (10), has output shaft keyway (21); Along the circumference of rotating shaft (10) outer surface several rotating shaft tenons (25) that distribute successively, rotating shaft tenon (25) is strip boss, between each rotating shaft tenon (25), is liquid return trough (19);
Rotor end plates (12) is annular, and there is a small through hole on rotor end plates (12) centre bore side, and liquid injection pipe (17) welds together by this through hole and rotor end plates (12); Shaft sleeve (15) is cylindrical shape, and there is a sleeve pipe end ring (24) one end; Rotor yoke (13) is cylindrical shape, and permanent magnet magnet steel (14) is tile shape;
Rotor end plates (12) centre bore is welded on the outer surface of the middle shaft shoulder welding ring of rotating shaft (10) (27), shaft sleeve (15) has one end of sleeve pipe end ring (24) to be welded on the outer surface of rotating shaft (10) intermediate rotary shaft tenon (25), the rotating shaft welding ring (26) of the other end and rotating shaft (10) welds together, the outside welding of rotor yoke (13) one end and rotor end plates (12), the outside of the other end and sleeve pipe end ring (24) welds together, and rotor welding part forms airtight cavity; Wherein the sleeve pipe end ring (24) by rotating shaft (10), rotor end plates (12), rotor yoke (13), rotating shaft tenon (25), shaft sleeve (15) forms annular evaporation cavity (18), by rotating shaft (10), rotating shaft tenon (25), shaft sleeve (15), form annular condensation chamber (20), between evaporation cavity (18) and condensation chamber (20), by several liquid return troughs (19), be communicated with; Evaporation cavity (18), condensation chamber (20), liquid return trough (19) form Crossed Circle rotating heat pipe cooler; In Crossed Circle rotating heat pipe cooler, after filling work medium for heat pipe, at the press seal place (23) of liquid injection pipe (17), with pressing tongs, flatten, and at liquid injection port (22) welded seal;
The cross section of rotary piston sealing ring (16) is L-shaped, surfaces externally and internally respectively has a groove, O-ring seals one (28) and O-ring seals two (29) are installed respectively, internal thread hole on rotary piston sealing ring (16) is provided with holding screw and nut, rotary piston sealing ring (16) is fixed on to rotating shaft (10) upper, the inner chamber of the sealing ring sleeve pipe (30) on rotary piston sealing ring (16) is used for holding liquid injection port (22);
Rotor yoke (13) outer surface of rotor part (9) is pasted several permanent magnet magnet steel (14) successively, forms rotor field; It is upper that rotary piston sealing ring (16) is arranged on rotor part (9), and respectively there is a bearing (11) at rotor part (9) two ends.
2. the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor according to claim 1, is characterized in that protecting component is comprised of tarpaulin (5), fan (6), fan housing (7), protective cover (8); Tarpaulin (5) is annular, is arranged on shaft sleeve (15) upper, and fan (6) is arranged in rotating shaft (10); Fan housing (7) is arranged on colling end cover (4) with screw; Fan housing has several air vent holes on (7), and when rotating shaft (10) is air-cored axis, air vent hole distributes at the radial circumference of fan housing (7), and is axially having a centre bore, increases protective cover (8) and protects;
Protective cover (8) is annular, with screw, dead ring (39) is fixed on to protective cover (8) upper, makes elastomeric flex ring (38) that strain occur, and protective cover (8) is arranged in rotating shaft (10).
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| CN201210184131.0A CN102710079B (en) | 2012-05-29 | 2012-05-29 | Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor |
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| CN201210184131.0A CN102710079B (en) | 2012-05-29 | 2012-05-29 | Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103746474A (en) * | 2013-09-30 | 2014-04-23 | 广东威灵电机制造有限公司 | Stator core punching sheet, motor stator core and motor |
| CN105876848B (en) * | 2016-04-22 | 2017-10-31 | 浙江中烟工业有限责任公司 | A kind of cigarette machine rubbing-connection drum device |
| CN110601400B (en) * | 2019-09-18 | 2024-07-02 | 深圳市泉胜精密科技有限公司 | Oil immersion type integrated permanent magnet brushless direct current motor |
| CN111342583A (en) * | 2020-04-01 | 2020-06-26 | 中国石油大学(华东) | Novel adjustable rotor cooling system |
| CN113809893B (en) * | 2021-09-23 | 2022-12-27 | 河北新四达电机股份有限公司 | Double-stator permanent magnet synchronous motor |
| CN114513065B (en) * | 2022-02-09 | 2023-10-10 | 安徽森力玛驱动技术有限公司 | Intelligent ventilation structure of semi-driven permanent magnet motor |
| CN114785051B (en) * | 2022-06-20 | 2022-08-26 | 沈阳工业大学 | Heat pipe cooling structure of permanent magnet motor and motor |
| CN116809982A (en) * | 2023-08-29 | 2023-09-29 | 太仓市华盈电子材料有限公司 | Permanent magnet synchronous liquid cooling electric spindle |
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| CN201611809U (en) * | 2010-01-25 | 2010-10-20 | 上海南洋电机有限公司 | Permanent magnet synchronous water-cooling motor for electric automobile |
| CN202586692U (en) * | 2012-05-29 | 2012-12-05 | 赵晓东 | Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010156533A (en) * | 2008-12-01 | 2010-07-15 | Suri-Ai:Kk | Looped heat pipe |
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| CN1960126A (en) * | 2005-11-04 | 2007-05-09 | 中国科学院电工研究所 | Transpirationcooled wind driven generator stator |
| CN201611809U (en) * | 2010-01-25 | 2010-10-20 | 上海南洋电机有限公司 | Permanent magnet synchronous water-cooling motor for electric automobile |
| CN202586692U (en) * | 2012-05-29 | 2012-12-05 | 赵晓东 | Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor |
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