CN202586692U - Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor - Google Patents
Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor Download PDFInfo
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- CN202586692U CN202586692U CN201220260418.2U CN201220260418U CN202586692U CN 202586692 U CN202586692 U CN 202586692U CN 201220260418 U CN201220260418 U CN 201220260418U CN 202586692 U CN202586692 U CN 202586692U
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Abstract
The present utility model relates to a permanent-magnet synchronous motor of a double annular rotating heat pipe cooling rotor. The motor is composed of a pedestal end cap part, a base part, a cooling end cap part, a rotor part and a protection part. When the motor is in operation, heat of a rotor is conducted to the external surface of a rotating shaft sleeve by a double annular rotating heat pipe cooler, when a screw pump oil pumping unit is driven, the heat conducted to the external surface of the rotating shaft sleeve is mainly radiated to the atmosphere through the natural wind cooling mode, convection circulation is facilitated by a fan, a rotor permanent magnet is rapidly cooled, and demagnetization caused by high temperature rise can be avoided. Heat generated by stator copper loss and iron loss can be radiated to the atmosphere through a radiating fin of the external surface of the base. When the permanent-magnet synchronous motor of the double annular rotating heat pipe cooling rotor is used as a universal motor, heat conducted to the external surface of the rotating shaft sleeve is brought away by air flow generated by the fan with a high rotating speed, and the air flow is used for cooling the radiating fin of the external surface of the base after passing through a ventilating slot of the cooling end cap.
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 that is applied in the 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,, often ignore the eddy current loss in the rotor because rotor and stator field rotate synchronously.In fact, the Harmonic Magnetic kinetic potential that harmonic current produced in the stator tooth effect of grooves, the magnetomotive non-sine distribution of winding and the winding also can cause eddy current loss in rotor permanent magnet and rotor yoke.Although compare with iron loss with the stator copper loss, rotor eddy current loss is very little,, the rotor radiating condition is bad, and eddy current loss possibly cause very high temperature rise, thereby causes the permanent magnet demagnetization.Compare with the ferrite permanent-magnet materials that small power motor is adopted, the Nd-Fe-Bo permanent magnet material that high power motor adopted has bigger conductivity and lower Curie temperature, and permanent magnet synchronous motor is scrapped because of the permanent magnet demagnetization.
Surface-mount type rotor in the permanent magnet synchronous motor is a kind of mature technique; The permanent magnet of tile shape sticks on rotor surface; Between rotor yoke and the rotating shaft toroidal cavity is arranged; The rotor yoke sectional area is less, and the eddy current loss that is produced is also less, but the heat that rotor permanent magnet and rotor yoke are produced is difficult to conduct through rotating shaft.Degree of protection is higher, particularly requires explosion-proof motor, and its rotor and stator winding all are enclosed in the airtight space, and the rotor radiating condition is more abominable.
The surface-mount type rotor is applicable to the motor of the big torque of the slow-speed of revolution, for example the direct-drive type permanent magnet synchronous motor of oil field screw pump oil pumper.The surface-mount type rotor is after the outer surface of rotor permanent magnet is installed the nonmagnetic metal sheath; Eliminate the adhesion strength influence of centrifugal force to rotor permanent magnet; Can make the surface-mount type 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 universal motor is real mandrel, and the drive motor of oil field screw pump oil pumper must be an 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, the single-screw (single screw) pump oil pumper is progressively replacement beam pumping unit.The type of drive of screw pump oil pumper is also changed to the kind of drive of directly driving of permanent magnet synchronous motor by the belt transmissioning mode of AC asynchronous motor.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 links and connects, and need not adopt decelerator, so there is not power transmission loss, belongs to high-efficiency energy-saving motor.The screw pump oil pumper is positioned at the field, and requires explosion-proof dustproof.Because the cooling effect of motor rotor fan is undesirable under the slow-speed of revolution, just all adopt totally-enclosed natural wind cooling mode at present at operating motor, there is the bad problem of rotor permanent magnet heat radiation.
Be used to drive the permanent magnet synchronous motor of equipment such as rotating speed such as height such as water pump and blower fan grade; Though the motor rotor fan can cool off the support of permanent magnet synchronous motor; But direct cooled rotor permanent magnet; And the heat that rotor permanent magnet and rotor yoke eddy current loss are produced during high rotating speed is bigger, and the rotor radiating condition is very abominable.
Summary of the invention
It is bad to the objective of the invention is to overcome common permanent-magnet synchronous motor rotor radiating condition, and the defective of scrapping because of the permanent magnet demagnetization easily provides a kind of permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor.Embodiment of the present invention are following:
The total characteristic of the present invention is that the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is made up of base end cover, support component, colling end cover, rotor part and protecting component.Base end cover and colling end cover are installed in the two ends of support component respectively, and rotor part is installed on the axis of base end cover, support component and colling end cover, and protecting component is installed on colling end cover and the 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 pumper is perpendicular to ground; The polished rod lower end connects with screw pump; The polished rod upper end is passed from the intermediate throughholes of rotating shaft, connects with the output shaft keyway of rotating shaft through square clip, and the base end cover then is installed on the blowout preventer.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor, and the output shaft keyway of rotating shaft connects with load equipment.Vertical mounting means is installed on the equipment through the base end cover.Horizontal mounting means is processed with footing on support, be installed on the equipment through footing.
Rotor part is made up of rotor weldment, bearing, permanent magnet magnet steel, rotary piston sealing ring and Crossed Circle rotating heat pipe cooler.The rotor weldment is welded together by rotating shaft, rotor end plates, rotor yoke, shaft sleeve.The rotating shaft that is used for motor of oil extractor is an air-cored axis, and universal shaft of motor is real mandrel.
The rotating shaft outer surface has shaft shoulder welding ring, rotating shaft tenon, rotating shaft welding ring successively, at an end of rotating shaft the output shaft keyway is arranged.Along the circumference of rotating shaft outer surface several rotating shaft tenons that distribute successively, the rotating shaft tenon is the strip boss, is liquid return trough between each rotating shaft tenon.
Rotor end plates is an annular, and there is a small through hole on rotor end plates centre bore next door, and liquid injection pipe welds together through this through hole and rotor end plates.Shaft sleeve is a cylindrical shape, and an end has a sleeve pipe end ring.Rotor yoke is a cylindrical shape, and the permanent magnet magnet steel is a tile shape.
The rotor end plates centre bore is welded on the outer surface of the middle shaft shoulder welding ring of rotating shaft; Shaft sleeve has an 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 the rotor weldment 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, form the condensation chamber of annular by rotating shaft, rotating shaft tenon, shaft sleeve, be communicated with by several liquid return troughs between evaporation cavity and the condensation chamber.Evaporation cavity, condensation chamber, liquid return trough are formed Crossed Circle rotating heat pipe cooler.Behind the filling work medium for heat pipe, flatten with pressing tongs in the Crossed Circle rotating heat pipe cooler at the press seal place of liquid injection pipe, and at the 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 the rotary piston sealing ring is equipped with holding screw and nut, is fixed on rotary piston sealing ring in the rotating shaft, and the inner chamber of the sealing ring sleeve pipe on the rotary piston sealing ring is used to hold 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 the 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 the rotor field.Rotary piston sealing ring is installed on the rotor part, and respectively there is a bearing at the rotor part two ends.
At the bearing of colling end cover one end,, be delivered to support force in the rotating shaft on the rotor part, thereby guarantee that Crossed Circle rotating heat pipe cooler can not influence the structural strength of rotor weldment through shaft sleeve and rotating shaft tenon.
The base end cover is made up of pedestal end cap, end cap seal circle, lip-type packing, pressure ring, circlip for hole, is installed in an end of support component through screw, seals with the end cap seal circle.One group of groove is arranged in the annular cavity of pedestal end cap, be used to install lip-type packing, pressure ring and circlip for hole.Cover a boss inner chamber in base end, be used to install the bearing outer ring on the rotor part.
The colling end cover is made up of cooling end cap, end cap seal circle, lip-type packing, pressure ring, circlip for hole, is installed in the other end of support component through screw, seals with the end cap seal circle.In the annular cavity of cooling end cap, one group of groove is arranged, be used to install lip-type packing, pressure ring and circlip for hole.Cover a boss inner chamber at colling end, be used to install the bearing outer ring on the rotor part.Outer surface several ventilation slots that evenly distribute of cooling end cap, the guiding fan airstream is to the cooling of support component.
Support component is made up of support, piston ring, core clamping-plate, stator core, stator winding, positioning key bar, through the support screwed hole on the support, is installed together with screw and base end cover and colling end cover.The support inner surface has a support keyway, and the positioning key bar is installed.Stator core is formed by stacking several stator stampings; Respectively there is a slice core clamping-plate at the stator core two ends; Accurately locate with the positioning key bar between pressing plate keyway, iron core keyway and the support keyway; Piston ring through with the interference fit of support inner surface, be fixed on core clamping-plate and stator core in the support inner chamber.Stator winding is installed in the winding slot of core, and the winding joint of stator winding passes from the wire casing that goes out on the support, is installed in the terminal box.The support outer surface is uniform-distribution with several cooling fins.
Protecting component is made up of tarpaulin, fan, fan housing, protective cover.Tarpaulin is an annular, is installed on the shaft sleeve, and fan is installed in the rotating shaft.Fan housing is installed on the colling end cover with screw.Several air vent holes are arranged on the fan housing, and when the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor was used for drive screw pump oil pumper, air vent hole distributed at the radial circumference of fan housing, and in that a centre bore is axially arranged, can increase protective cover protection.The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor, and air vent hole distributes at the axial cross section of fan housing.
Protective cover is an annular, is fixed on dead ring on the protective cover with screw, makes the elastomeric flex environment-development give birth to strain, is installed in protective cover in the rotating shaft.
The work medium for heat pipe of filling has liquid working media and gaseous working medium in the Crossed Circle rotating heat pipe cooler, is vaporizated into gaseous working medium after liquid working media is heated, and is condensed into liquid working media after the gaseous working medium cooling.When the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor moves; Rotor part rotates according to the rotor direction of rotation; The axis and the rotor axis of Crossed Circle rotating heat pipe cooler are overlapping; Under action of centrifugal force, liquid working media collects in the inner surface of evaporation cavity cylindrical, forms the work liquid pool.The heat that permanent magnet magnet steel and rotor yoke are produced is transmitted to the inner surface of evaporation cavity cylindrical; The heating work liquid pool; Be vaporizated into gaseous working medium after liquid working media is heated, under the promotion of evaporating pressure, gaseous working medium passes the inner surface that liquid return trough flow to the condensation chamber cylindrical; Be transmitted to heat the outer surface of shaft sleeve; Gaseous working medium is condensed into liquid working media at the inner surface of condensation chamber cylindrical, and liquid working media is under the acting in conjunction of centrifugal force and liquid working media surface tension of liquid, along the inner surface of condensation chamber cylindrical; Pass in the work liquid pool of inner surface that liquid return trough is back to the evaporation cavity cylindrical, accomplish 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 is undesirable under the slow-speed of revolution; The heat that is transmitted to the shaft sleeve outer surface mainly is dispersed in the atmosphere through natural wind cooling mode, and fan is assisted convection circulation, utilizes good isothermal performance of heat pipe and very high heat conductivility; Cooled rotor permanent magnet magnet steel is avoided demagnetizing because of temperature rise is too high rapidly.The heat that stator copper loss and iron loss are produced then is dispersed in the atmosphere through the fin of support outer surface.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor; The heat that is transmitted to the shaft sleeve outer surface is by the carried away by air movement of fan generation under the high rotating speed; Air-flow passes the ventilation slot of cooling end cap afterwards, and the fin of support outer surface is cooled off.
Description of drawings
Figure of description is the structure chart of permanent magnet synchronous motor of sketch map and Crossed Circle rotating heat pipe cooled rotor of the direct-drive type permanent magnet synchronous motor rotor of common screw pump oil pumper.Wherein Fig. 1 is the sketch map of the direct-drive type permanent magnet synchronous motor rotor of common screw pump oil pumper.Fig. 2 is a Crossed Circle rotating heat pipe cooler principle schematic.Fig. 3 is the axonometric drawing of permanent magnet synchronous motor that is used for the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 4 is the isometric cutaway view of permanent magnet synchronous motor that is used for the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 5 is the isometric cutaway view of rotor part of permanent magnet synchronous motor that is used for the Crossed Circle rotating heat pipe cooled rotor of oil pumper.Fig. 6 is the isometric cutaway view of rotor weldment.Fig. 7 is the isometric cutaway view of rotating shaft and shaft sleeve welding.Fig. 8 is the rotating shaft axonometric drawing of 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 base end cover.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 universal Crossed Circle rotating heat pipe cooled rotor.
The figure acceptance of the bid is marked with base end cover 1; Go out wire casing 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 of rotation 57.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further narration.
With reference to Fig. 3, Fig. 4 and Figure 26, the permanent magnet synchronous motor that Crossed Circle rotating heat pipe cooling has been changeed is made up of base end cover 1, support component 3, colling end cover 4, rotor part 9 and protecting component.Base end cover 1 and colling end cover 4 are installed in the two ends of support component 3 respectively, and rotor part 9 is installed on the axis of base end cover 1, support component 3 and colling end cover 4, and protecting component is installed on colling end cover 4 and the rotor part 9.
With reference to Fig. 5, Fig. 6 and Fig. 7, rotor part 9 is made up of rotor weldment, bearing 11, permanent magnet magnet steel 14, rotary piston sealing ring 16 and Crossed Circle rotating heat pipe cooler.The rotor weldment is welded together by rotating shaft 10, rotor end plates 12, rotor yoke 13, shaft sleeve 15.The rotating shaft 10 that is used for motor of oil extractor is air-cored axis, and universal shaft of motor 10 is real mandrels.
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, at an end of rotating shaft 10 output shaft keyway 21 are arranged.Along the circumference of rotating shaft 10 outer surfaces several rotating shaft tenons 25 that distribute successively, rotating shaft tenon 25 is strip boss, is liquid return trough 19 between each rotating shaft tenon 25.
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 bores next door, and liquid injection pipe 17 welds together through this through hole and rotor end plates 12.Shaft sleeve 15 is cylindrical shapes, and an end has a sleeve pipe end ring 24.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 an end of sleeve pipe end ring 24 to be welded on the outer surface of rotating shaft 10 intermediate rotary shaft tenons 25, and the rotating shaft welding ring 26 of the other end and rotating shaft 10 welds together, the outside welding of rotor yoke 13 1 ends and rotor end plates 12; The outside of the other end and sleeve pipe end ring 24 welds together, and the rotor weldment forms airtight cavity.The evaporation cavity 18 of wherein forming annular by the sleeve pipe end ring 24 of rotating shaft 10, rotor end plates 12, rotor yoke 13, rotating shaft tenon 25, shaft sleeve 15; Form the condensation chamber 20 of annular by rotating shaft 10, rotating shaft tenon 25, shaft sleeve 15, be communicated with by several liquid return troughs 19 between evaporation cavity 18 and the condensation chamber 20.Evaporation cavity 18, condensation chamber 20, liquid return trough 19 are formed Crossed Circle rotating heat pipe cooler.Behind the filling work medium for heat pipe, 23 usefulness pressing tongs flatten at the press seal place of liquid injection pipe 17 in the Crossed Circle rotating heat pipe cooler, 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, and O-ring seals 1 and O-ring seals 2 29 are installed respectively, and the internal thread hole on the rotary piston sealing ring 16 is equipped with holding screw and nut; Be fixed on rotary piston sealing ring 16 in the rotating shaft 10, the inner chamber of the sealing ring sleeve pipe 30 on the rotary piston sealing ring 16 is used to hold 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 the rotor field.Rotary piston sealing ring 16 is installed on the 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, base end cover 1 is made up of pedestal end cap 31, end cap seal circle 32, lip-type packing 33, pressure ring 34, circlip for hole 35, is installed in an end of support component 3 through screw, with 32 sealings of end cap seal circle.One group of groove is arranged in the annular cavity of pedestal end cap 31, be used to install lip-type packing 33, pressure ring 34 and circlip for hole 35.A boss inner chamber 36 is arranged on pedestal end cap 31, be used to install bearing 11 outer rings on the rotor part 9.
With reference to Figure 16, Figure 18, Figure 19 and Figure 20; Colling end cover 4 is made up of cooling end cap 37, end cap seal circle 32, lip-type packing 33, pressure ring 34, circlip for hole 35; Be installed in the other end of support component 3 through screw, with 32 sealings of end cap seal circle.In the annular cavity of cooling end cap 37, one group of groove is arranged, be used to install lip-type packing 33, pressure ring 34 and circlip for hole 35.On cooling end cap 37, a boss inner chamber 36 is arranged, be used to install bearing 11 outer rings on the rotor part 9.Outer surface several ventilation slots 52 that evenly distribute of cooling end cap 37, the guiding fan airstream is to the cooling of support component 3.
With reference to Figure 21, Figure 22, Figure 23, Figure 24 and Figure 25; Support component 3 is made up of support 46, piston ring 40, core clamping-plate 41, stator core 42, stator winding 43, positioning key bar 44; Through the support screwed hole 47 on the support 46, be installed together with colling end cover 4 with screw and base end cover 1.The support inner surface has a support keyway, and positioning key bar 44 is installed.Stator core 42 is formed by stacking several stator stampings; Respectively there is a slice core clamping-plate 41 at stator core 42 two ends; Accurately locate with positioning key bar 44 between pressing plate keyway 51, iron core keyway 50 and the support keyway; Piston ring 40 through with the interference fit of support 46 inner surfaces, be fixed on core clamping-plate 41 and stator core 42 in support 46 inner chambers.Stator winding 43 is installed in the winding slot of core 49, and the winding joint 48 of stator winding 43 passes from the wire casing 2 that goes out on the support 46, is installed in the terminal box.Support 46 outer surfaces are uniform-distribution with several cooling fins 45.
With reference to Fig. 4, Figure 26 and Figure 17, protecting component is made up of tarpaulin 5, fan 6, fan housing 7, protective cover 8.Tarpaulin 5 is annulars, is installed on the shaft sleeve 15, and fan 6 is installed in the rotating shaft 10.Fan housing 7 usefulness screws are installed on the colling end cover 4.Several air vent holes are arranged on the fan housing 7, and when the permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor was used for drive screw pump oil pumper, air vent hole distributed at the radial circumference of fan housing 7, and a centre bore is axially being arranged, and can increase protective cover 8 and protect.The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor, and air vent hole distributes at the axial cross section of fan housing 7.
With reference to Fig. 2; The work medium for heat pipe of filling has liquid working media 55 and gaseous working medium 54 in the Crossed Circle rotating heat pipe cooler; Be vaporizated into gaseous working medium 54 after liquid working media 55 is heated, be condensed into liquid working media 55 after gaseous working medium 54 coolings.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 of rotation; The axis and the rotor axis 56 of Crossed Circle rotating heat pipe cooler are overlapping; Under action 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 are produced is transmitted to the inner surface of evaporation cavity 18 cylindricals; Heating work liquid pool 53; Be vaporizated into gaseous working medium 54 after liquid working media 55 is heated, under the promotion of evaporating pressure, gaseous working medium 54 passes the inner surface that liquid return trough 19 flow to condensation chamber 20 cylindricals; Be transmitted to heat 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, and liquid working media 55 is under the acting in conjunction of centrifugal force and liquid working media surface tension of liquid, along the inner surface of condensation chamber 20 cylindricals; Pass in the work liquid pool 53 of inner surface that liquid return trough 19 is back to evaporation cavity 18 cylindricals, accomplish 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 6 is undesirable under the slow-speed of revolution; The heat that is transmitted to shaft sleeve 15 outer surfaces mainly is dispersed in the atmosphere through natural wind cooling mode, and fan 6 auxiliary convection circulations utilize good isothermal performance of heat pipe and very high heat conductivility; Cooled rotor permanent magnet magnet steel 14 is avoided demagnetizing because of temperature rise is too high rapidly.The heat that stator copper loss and iron loss are produced then is dispersed in the atmosphere through the fin 45 of support 46 outer surfaces.
The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor; The heat that is transmitted to shaft sleeve 15 outer surfaces is by the carried away by air movement of 6 generations of fan under the high rotating speed; Air-flow passes the ventilation slot 52 of cooling end cap 37 afterwards, and the fin 45 of support 46 outer surfaces is cooled off.
Claims (2)
1. the permanent magnet synchronous motor of a Crossed Circle rotating heat pipe cooled rotor is characterized in that being made up of base end cover (1), support component (3), colling end cover (4), rotor part (9) and protecting component; Base end cover (1) and colling end cover (4) are installed in the two ends of support component (3) respectively; Rotor part (9) is installed on the axis of base end cover (1), support component (3) and colling end cover (4), and protecting component is installed on colling end cover (4) and the rotor part (9);
Rotor part (9) is made up of rotor weldment, bearing (11), permanent magnet magnet steel (14), rotary piston sealing ring (16) and Crossed Circle rotating heat pipe cooler; The rotor weldment is welded together by rotating shaft (10), rotor end plates (12), rotor yoke (13), shaft sleeve (15); The rotating shaft (10) that is used for motor of oil extractor is an air-cored axis, and universal shaft of motor (10) is real mandrel;
Rotating shaft (10) outer surface has shaft shoulder welding ring (27), rotating shaft tenon (25), rotating shaft welding ring (26) successively; End in 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 the strip boss, is liquid return trough (19) between each rotating shaft tenon (25);
Rotor end plates (12) is an annular, and there is a small through hole on rotor end plates (12) centre bore next door, and liquid injection pipe (17) welds together through this through hole and rotor end plates (12); Shaft sleeve (15) is a cylindrical shape, and an end has a sleeve pipe end ring (24): rotor yoke (13) is a cylindrical shape, and permanent magnet magnet steel (14) is a 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 an 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 ends and rotor end plates (12), the outside of the other end and sleeve pipe end ring (24) welds together, and the rotor weldment forms airtight cavity; The evaporation cavity (18) of wherein forming annular by the sleeve pipe end ring (24) of rotating shaft (10), rotor end plates (12), rotor yoke (13), rotating shaft tenon (25), shaft sleeve (15); Form the condensation chamber (20) of annular by rotating shaft (10), rotating shaft tenon (25), shaft sleeve (15), be communicated with by several liquid return troughs (19) between evaporation cavity (18) and the condensation chamber (20); Evaporation cavity (18), condensation chamber (20), liquid return trough (19) are formed Crossed Circle rotating heat pipe cooler; Behind the filling work medium for heat pipe, flatten with pressing tongs in the Crossed Circle rotating heat pipe cooler at the press seal place (23) of liquid injection pipe (17), 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 the rotary piston sealing ring (16) is equipped with holding screw and nut, is fixed on rotary piston sealing ring (16) in the rotating shaft (10), and the inner chamber of the sealing ring sleeve pipe (30) on the rotary piston sealing ring (16) is used to hold liquid injection port (22);
Rotor yoke (13) outer surface of rotor part (9) is pasted several permanent magnet magnet steel (14) successively, forms the rotor field; Rotary piston sealing ring (16) is installed on the 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 made up of tarpaulin (5), fan (6), fan housing (7), protective cover (8); Tarpaulin (5) is an annular, is installed on the shaft sleeve (15), and fan (6) is installed in the rotating shaft (10); Fan housing (7) is installed on the colling end cover (4) with screw; Fan housing has several air vent holes on (7); 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 a centre bore is axially being arranged, and can increase protective cover (8) and protect; The permanent magnet synchronous motor of Crossed Circle rotating heat pipe cooled rotor is during as universal motor, and air vent hole distributes at the axial cross section of fan housing (7);
Protective cover (8) is an annular, is fixed on dead ring (39) on the protective cover (8) with screw, makes elastomeric flex ring (38) that strain take place, and is installed in protective cover (8) in the rotating shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220260418.2U CN202586692U (en) | 2012-05-29 | 2012-05-29 | Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220260418.2U CN202586692U (en) | 2012-05-29 | 2012-05-29 | Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor |
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| CN202586692U true CN202586692U (en) | 2012-12-05 |
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| CN201220260418.2U Expired - Lifetime CN202586692U (en) | 2012-05-29 | 2012-05-29 | Permanent-magnet synchronous motor of double annular rotating heat pipe cooling rotor |
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|---|---|
| CN (1) | CN202586692U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710079A (en) * | 2012-05-29 | 2012-10-03 | 赵晓东 | Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor |
| CN103248151A (en) * | 2013-04-25 | 2013-08-14 | 吕希潮 | Integrated spiral tube conveying motor |
| CN103253375A (en) * | 2013-04-24 | 2013-08-21 | 北京工业大学 | Installation base of aircraft outer rotor brushless motor |
| CN103264771A (en) * | 2013-04-24 | 2013-08-28 | 北京工业大学 | Power installation structure for electric aircraft with axis pulled ahead |
| CN106403673A (en) * | 2016-12-04 | 2017-02-15 | 大连碧蓝节能环保科技有限公司 | Power heat pipe of screw pump |
-
2012
- 2012-05-29 CN CN201220260418.2U patent/CN202586692U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710079A (en) * | 2012-05-29 | 2012-10-03 | 赵晓东 | Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor |
| CN102710079B (en) * | 2012-05-29 | 2014-03-05 | 赵晓东 | Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor |
| CN103253375A (en) * | 2013-04-24 | 2013-08-21 | 北京工业大学 | Installation base of aircraft outer rotor brushless motor |
| CN103264771A (en) * | 2013-04-24 | 2013-08-28 | 北京工业大学 | Power installation structure for electric aircraft with axis pulled ahead |
| CN103264771B (en) * | 2013-04-24 | 2015-09-09 | 北京工业大学 | The Power installation structure of Electric aircraft is drawn before a kind of axis |
| CN103253375B (en) * | 2013-04-24 | 2016-01-20 | 北京工业大学 | A kind of mounting seat of aircraft outer rotor brushless motor |
| CN103248151A (en) * | 2013-04-25 | 2013-08-14 | 吕希潮 | Integrated spiral tube conveying motor |
| CN106403673A (en) * | 2016-12-04 | 2017-02-15 | 大连碧蓝节能环保科技有限公司 | Power heat pipe of screw pump |
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