CN100555815C - Hysteresis synchronous motor and manufacturing process thereof - Google Patents

Hysteresis synchronous motor and manufacturing process thereof Download PDF

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CN100555815C
CN100555815C CNB2006100538880A CN200610053888A CN100555815C CN 100555815 C CN100555815 C CN 100555815C CN B2006100538880 A CNB2006100538880 A CN B2006100538880A CN 200610053888 A CN200610053888 A CN 200610053888A CN 100555815 C CN100555815 C CN 100555815C
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claw pole
pole stator
following
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stator
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CN101145721A (en
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余国华
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Abstract

A kind of hysteresis synchronous motor is provided with iron core in the casing, a rotating shaft runs through and is arranged in the iron core; The sheathed following claw pole stator assembly with a plurality of lower claw utmost points on iron core top is separated by following short-circuited conducting sleeve between the lower claw utmost point adjacent one another are and forms split-pole; The iron core middle part is arranged with stator winding; The sheathed last claw pole stator with dewclaw utmost point of mandrel lower is arranged with short-circuited conducting sleeve at dewclaw on extremely, is separated by last short-circuited conducting sleeve between the dewclaw utmost point adjacent one another are and forms split-pole, is arranged with the internal short-circuit ring at the iron core middle part; Form an annular gap between following claw pole stator assembly and the last claw pole stator; One rotor ring is between the annular gap.Make the technology of above-mentioned motor, mainly contain following processing step: punching press, stress annealing processing, point welding process, bending, vacuum hardening processing, riveting operation, welding, injection moulding, seal, assemble.It is a kind of hysteresis synchronous motor of novel structure, have simple in structure, convenient processing and manufacture, cost is low, etc. advantage.

Description

Hysteresis synchronous motor and manufacturing process thereof
Technical field
The present invention relates to a kind of hysteresis synchronous motor and manufacturing process thereof, especially be applicable to the hysteresis synchronous motor that needs frequent start-stop, moment pause, permanent torque occasion.
Background technology
Hysteresis synchronous motor is a kind of alternating current motor, and rotor is the magnetic hysteresis rotor of being made by hysteresis material, slots on the stator, and multi-form winding as required can distribute in the groove.The rotation of motor is the effect by the stator rotating magnetic field, makes rotor produce hysteresis torque, with the motor starting and the operation of pulling in.Compare with other synchronous motor, hysteresis motor has favorable starting performance, and is general, the energy index of hysteresis motor is not high, its starting current and rated operational current are more or less the same, and when supply voltage and load generation fluctuation, can guarantee that still rotating speed is constant.Hysteresis synchronous motor simple in structure, reliable, noise is low, being widely used in needs in starting performance is good, rotating speed remains unchanged the synchronous transmission device.Hysteresis synchronous motor is mainly used in industries such as instrument and meter, automatic control.
Known hysteresis synchronous motor all is to embed winding in stator coring groove, and rotor is made with hysteresis material.Produce rotating magnetic field behind the stator winding electrifying, make rotor hysteresis material magnetization after, under the effect of stator rotating magnetic field, produce hysteresis torque and work.The core slots of above-mentioned hysteresis synchronous motor, winding construction are comparatively complicated, volume is big, be difficult for processing, cause cost higher, and noise is big during machine operation, and range of application is narrow and small relatively.
Summary of the invention
Technical problem to be solved by this invention is hysteresis synchronous motor and the manufacturing process thereof that a kind of novel structure is provided at above-mentioned prior art present situation, this hysteresis synchronous motor structure is simple relatively, convenient processing and manufacture, cost is low, satisfy batch production requirement, it has also that electromagnetic noise is low, rotor does not have unusual fluctuation, do not damage advantages such as inner components and parts behind the stall, be specially adapted to the drive unit of requirements such as rotating speed is strict, start-stop is frequent, permanent torque, can be widely used in various self-reacting devices and the automatic control system.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of hysteresis synchronous motor includes a casing; It is characterized in that being provided with in the casing iron core of axial hollow, a rotating shaft runs through by bearing and is arranged in the iron core; Sheathedly on iron core top fix one and have the down following claw pole stator assembly of short-circuited conducting sleeve, a plurality of lower claw utmost points that this time claw pole stator assembly radially distributes along circumference are descended short-circuited conducting sleeve to separate between the lower claw utmost point adjacent one another are and are formed split-pole; The iron core middle part is arranged with stator winding, and the beginning of stator winding, end link to each other with the lead-out wire that passes casing respectively; The sheathed claw pole stator that is fixed with of mandrel lower, should go up claw pole stator and upwards a plurality of dewclaw utmost points of bending be arranged along circumferentially-spaced, the number of the dewclaw utmost point is identical with the number of the lower claw utmost point, dewclaw be arranged with on extremely with the dewclaw utmost point match on short-circuited conducting sleeve, separated by last short-circuited conducting sleeve between the dewclaw utmost point adjacent one another are and form split-pole, be arranged with the internal short-circuit ring at the iron core middle part, the internal short-circuit ring is positioned at dewclaw extremely, and contacts with last short-circuited conducting sleeve upper surface; Form an annular gap between described claw pole stator assembly down and the last claw pole stator; The sheathed rotor assembly that is fixed with in described rotating shaft upper end, the rotor assembly edge has the rotor ring of downward bending, and this rotor ring is between the annular gap.
Above-mentioned following claw pole stator assembly is very good to have 12 lower claws, and the described claw pole stator of going up is there to be 12 dewclaws very good.
Above-mentioned stator winding is encapsulated in the coil encapsulated layer that has terminal pin, the beginning of stator winding, terminal links to each other with terminal pin in the coil encapsulated layer respectively, and described lead-out wire then links to each other with terminal pin.Seal stator winding with the coil encapsulated layer and replace insulating tape wrapping stator winding, motor windings is hedged off from the outer world fully, guarantee the long-time reliable running of this motor, and the sorrow that with the passing of time gets loose of naked adhesive tape.
Above-mentioned following claw pole stator assembly is by claw pole stator I, following claw pole stator II, following short-circuited conducting sleeve, following claw pole stator III form down; Six L-shaped lower claw utmost points that following claw pole stator I and following claw pole stator II radially distribute along circumference, six lower claw utmost points that following claw pole stator III also radially distributes along circumference; The upper surface of following short-circuited conducting sleeve has six recesses spaced apart and recessed and radially run through, and the following lower surface of the short-circuited conducting sleeve recess that has six spaced apart and fovea superiors and radially run through, recessed recess and the interlaced distribution of the recess of fovea superior; Following claw pole stator I, following claw pole stator II, following short-circuited conducting sleeve, following claw pole stator III assemble successively from top to down and are fixed together; Wherein descend the lower claw utmost point on claw pole stator I and the following claw pole stator II to overlap, and the lower claw utmost point on the following claw pole stator III and the lower claw on following claw pole stator I and the following claw pole stator II stagger extremely mutually and form 12 lower claw utmost points, thereby the lower claw utmost point on following claw pole stator I and the following claw pole stator II radially passes down the recess of short-circuited conducting sleeve upper surface, the recess formation split-pole that the lower claw utmost point on the following claw pole stator III radially passes down the short-circuited conducting sleeve lower surface.Adopt above-mentioned claw pole stator modular construction down can make easy to assembly, and make things convenient for us to manufacture down claw pole stator I, following claw pole stator II, following short-circuited conducting sleeve, following claw pole stator III, the magnetic property of this time claw pole stator assembly can also be improved, and six split-poles can be formed very easily.
Above-mentioned last claw pole stator edge has upwards at an angle of 90 and six pairs of dewclaw utmost points uniformly at intervals, the every pair of dewclaw utmost point by two dewclaw interpolars every forming, the described inner ring surface of going up short-circuited conducting sleeve has six outside recessed and recesses of axially running through, the outer ring surface of last short-circuited conducting sleeve has six recesses that concave and axially run through, and the outer recessed recess and the interlaced distribution of recess of indent, two adjacent dewclaw utmost points pass outer recessed recess formation split-pole thereby one of them dewclaw utmost point passes recess, another dewclaw utmost point of indent.Above-mentioned go up stator only need pass through punching press, bending operation just can moulding, so manufacturing convenience and can also reach the purpose of batch process.
Above-mentioned rotor assembly is made up of shaft seat, rotor disk and rotor ring, and wherein shaft seat is fixed on the upper end of rotating shaft, and rotor disk is sheathed to be fixed on the shaft seat, and rotor ring then is fixed together with rotor disk.With rotor assembly by a plurality of parts following advantage that has been assembled: the first, make things convenient for production and assembly, if this rotor assembly is the difficulty that will certainly increase the manufacturing so of integrative-structure; The second, because it is made up of shaft seat, rotor disk and rotor ring, we can select to make the material of each several part as required so, to reach the purpose that reduces cost.
Compared with prior art, the advantage of this hysteresis synchronous motor is: it is a kind of hysteresis synchronous motor of novel structure, it is mainly by iron core, following claw pole stator assembly, last claw pole stator, rotor assembly, stator winding, short-circuited conducting sleeve is formed, simple in structure than core slots in original motor and winding, also have itself and in the past the hysteresis synchronous motor structure a great difference is arranged, the course of work also has very big difference, behind the stator winding electrifying in this hysteresis synchronous motor, the main flux of motor is by the iron core in the casing, following claw pole stator assembly, last claw pole stator, gap between following claw pole stator assembly and the last claw pole stator, rotor assembly forms the closed-loop path, again because last, all there is short-circuited conducting sleeve that the pawl utmost point of 1/2 quantity is entangled on the following claw pole stator, form split-pole, after single-phase alternating current feeds winding, last, produce the pulsation magnetic flux between following claw pole stator, go up like this, form to turn to after the lower claw utmost point cooperates at a certain angle and be anticlockwise elliptic rotating field, make rotor ring hysteresis material magnetization back and produce hysteresis torque with it, under the effect of this hysteresis torque, make the rotor ring starting until entering synchronous operation.
A kind of technology of making above-mentioned hysteresis synchronous motor, 1. this technology comprise the steps:, with the good pure iron plate of magnetic property respectively punch forming form down claw pole stator I, claw pole stator II and following claw pole stator III down, and then respectively to claw pole stator I down, claw pole stator II and following claw pole stator III carry out the stress annealing processing down; Adopt moulding to form down short-circuited conducting sleeve with a brass sheet; Then will descend again claw pole stator I, down claw pole stator II, short-circuited conducting sleeve and following claw pole stator III process through point welding process from top to down and are fixed together successively and form down the claw pole stator assembly down; 2., form claw pole stator, the part that bending makes progress forms the dewclaw utmost point, and then last claw pole stator is carried out stress annealing handle with magnetic property good pure iron plate punching press respectively, brake forming; Adopt punch forming to form short-circuited conducting sleeve with a brass sheet; Adopt punch forming to form the internal short-circuit ring with a brass sheet; 3., form rotor disk with an aluminium sheet punch forming; Form rotor ring with a high carbon tool steel band punch forming, and then this rotor ring is carried out vacuum hardening handle; Then with shaft seat and rotor disk after the riveting working procedure processing, be pressed into rotating shaft again, and then after the riveting operation is riveted rotor disk and rotor ring, become rotor assembly.4., the beginning of stator winding, terminal line are welded with terminal pin respectively, then lead-out wire one end and terminal pin welding, the encapsulating mold of this stator winding being put into injection moulding machine is carried out injection moulding, is sealed again, after the demoulding, at the peripheral coil encapsulated layer that forms of stator winding; 5., at last above-mentioned each parts are assemblied in the casing.
For the last claw pole stator of using the pure iron plate punching out, following claw pole stator I, II, III, because the interior tissue of punching fringe region has produced distortion and internal stress during stamping-out, increased the difficulty of magnetic domain wall movement, coercivity H is increased, maximum permeability μ m value reduces.For recovering the original magnetic property of upper and lower claw pole stator pressing product, must carry out stress relief annealing to it.The processing mode of above-mentioned stress annealing adopts the continuous annealing of tunnel type vacuum furnace multistage temperature, and Annealing Protection gas is N 2, concrete processing step is as follows: will descend claw pole stator I, following claw pole stator II, following claw pole stator III or go up claw pole stator to lie on the conveyer belt, and slowly be delivered to 900 ± 10 ℃ of sections, and be incubated 2 hours; Moving ahead then is cooled to 700 ℃ of sections, and cooling rate should be less than or equal to 50 ℃/hour, and continuing to move ahead cools to the furnace below 500 ℃, is transmitted by conveyer belt and comes out of the stove to end fitting collection place.Certainly also can adopt other stress annealing mode.
Because this motor is used for valve with electrically motorized operation control, not only require motor output torque big (〉=1.15Kgfcm, 4r/min 220V 50Hz), also require motor cut off the power supply static torque as far as possible little (≤0.216Kgfcm), therefore should not adopt the higher material of remanent magnetism.Constantly test through us, find to meet the demands after the rotor ring adopts high carbon tool steel band punching out and vacuum hardening to handle.What the present invention adopted is that vacuum hardening adopts the tunnel type vacuum furnace to quench, and the protection gas that quenches is N 2, concrete processing step is as follows: rotor ring is lain on the conveyer belt, slowly delivered to 820 ± 10 ℃ of sections, be incubated 20 minutes; Move ahead then and leave this section and fall into the oil groove quench cooled, be sent to end fitting collection place by conveyer belt to normal temperature.Because the phase critical point temperature of high carbon tool steel (as T8, T10 etc.) is generally 730 ℃, therefore it is heated to 820 ± 10 ℃ after quench cooled again, can obtain a large amount of martensitic structures, thereby improve the magnetic property of rotor ring.Certainly also can adopt other vacuum hardening mode.
Compared with prior art, the advantage of this manufacturing process is: through improving the magnetic property of going up claw pole stator, following claw pole stator I, II, III, rotor ring after this processes, so can improve the operating efficiency of this motor, and noise was little when this rotor ring rotated, rotor assembly does not have unusual fluctuation behind the stall, does not damage advantages such as inner components and parts.
Description of drawings
Fig. 1 is the structure cutaway view of the embodiment of the invention;
Fig. 2 is the partial sectional view that stator winding combines with the coil encapsulated layer in the embodiment of the invention;
The vertical view of claw pole stator assembly under in Fig. 3 embodiment of the invention;
The structure cutaway view of claw pole stator assembly under in Fig. 4 embodiment of the invention;
Go up the assembling schematic diagram of claw pole stator and following claw pole stator assembly in Fig. 5 embodiment of the invention;
Fig. 6 is the structure broken away view of the embodiment of the invention;
Fig. 7 is an embodiment of the invention main flux path schematic diagram;
Fig. 8 is the main flux path schematic diagram of motor.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1~6, a kind of hysteresis synchronous motor, include a casing 1, the bottom of casing 1 is fixed with gearbox support 19, be provided with transmission case assembly 20 in the gearbox support 19, transmission case assembly 20 can adopt the transmission case assembly in the existing motor, and transmission case assembly is a gear shift, it is a routine techniques, so do not launch to elaborate;
Be provided with the iron core 2 of axial hollow in the casing 1, iron core 2 adopts electrical pure iron rod car system, one rotating shaft 3 runs through and is arranged in the iron core 2 by being arranged in the iron core 2 up and down the bearings 21 at two ends, and pass casing 1 bottom and enter in the gearbox support 19, link to each other with transmission case assembly 20 by the great wheel 22 that is arranged in the rotating shaft 3;
Shown in Fig. 3,4, the sheathed claw pole stator assembly down that is fixed with on iron core 2 tops, following claw pole stator assembly is by claw pole stator I13, following claw pole stator II14, following short-circuited conducting sleeve 15, following claw pole stator III16 form down; Six L-shaped lower claw utmost points 6 that following claw pole stator I13 and following claw pole stator II14 radially distribute along circumference, six lower claw utmost points 6 that following claw pole stator III16 also radially distributes along circumference; The upper surface of following short-circuited conducting sleeve 15 has six recesses 151 spaced apart and recessed and radially run through, and the following lower surface of short-circuited conducting sleeve 15 recess 152 that has six spaced apart and fovea superiors and radially run through, recessed recess 151 and the 152 interlaced distributions of the recess of fovea superior; Following claw pole stator I13, following claw pole stator II14, following short-circuited conducting sleeve 15, following claw pole stator III16 assemble successively from top to down and are fixed together; Wherein descend the lower claw utmost point 6 on claw pole stator I13 and the following claw pole stator II14 to overlap, and the lower claw utmost point 6 on the following claw pole stator III16 and the lower claw utmost point 6 on following claw pole stator I13 and the following claw pole stator II14 stagger mutually and form 12 lower claw utmost points 6, the lower claw utmost point 6 on following claw pole stator I13 and the following claw pole stator II14 radially passes down the recess 151 of short-circuited conducting sleeve 15 upper surfaces, thereby the recess 152 that the lower claw utmost point 6 on the following claw pole stator III16 radially passes down short-circuited conducting sleeve 15 lower surfaces forms split-poles, is fixed on iron core 2 tops after following claw pole stator component groups installs;
As shown in Figure 2, iron core 2 middle parts are arranged with stator winding 7, stator winding 7 is encapsulated in the coil encapsulated layer 5 that has terminal pin 51, the beginning of stator winding 7, terminal links to each other with terminal pin 51 in the coil encapsulated layer 5 respectively, and the other end of terminal pin 51 then links to each other with the lead-out wire 8 that passes casing 1;
As Fig. 1, shown in 6, the sheathed claw pole stator 9 that is fixed with in iron core 2 bottoms, last claw pole stator 9 edges have upwards at an angle of 90 and six pairs of dewclaw utmost points 91 uniformly at intervals, every pair of dewclaw utmost point 91 is made of at interval two dewclaw utmost points 91, be arranged with on the dewclaw utmost point 91 with the dewclaw utmost point 91 match on short-circuited conducting sleeve 10, the described inner ring surface of going up short-circuited conducting sleeve 10 has six outside recessed and recesses 101 of axially running through, the outer ring surface of last short-circuited conducting sleeve 10 has six recesses that concave and axially run through 102, and the outer recessed recess 101 and the recess 102 interlaced distributions of indent, two adjacent dewclaw utmost points 91, one of them dewclaw utmost point 91 passes the recess 102 of indent, thereby another dewclaw utmost point 91 passes outer recessed recess 101 and forms split-pole, be arranged with internal short-circuit ring 4 at iron core 2 middle parts, internal short-circuit ring 4 is positioned at the dewclaw utmost point 91, and contacts with last short-circuited conducting sleeve 10 upper surfaces that are positioned at the dewclaw utmost point 91;
Form an annular gap 11 between described claw pole stator assembly down and the last claw pole stator 9;
The sheathed rotor assembly that is fixed with in described rotating shaft 3 upper ends, rotor assembly is made up of shaft seat 17, rotor disk 18 and rotor ring 12, wherein shaft seat 17 is fixed on the upper end of rotating shaft 3, rotor disk 18 sheathed being fixed on the shaft seat 17, rotor ring 12 then is fixed together with the periphery of rotor disk 18, and this rotor ring 12 is between annular gap 11.
The manufacturing process of above-mentioned hysteresis synchronous motor comprises the steps:
1., with the good pure iron plate of magnetic property respectively punch forming form down claw pole stator I13, claw pole stator II14 and following claw pole stator III16 down; and then respectively to claw pole stator I13, following claw pole stator II14 and following claw pole stator III16 carry out the stress annealing processing down; the processing mode of stress annealing adopts the continuous annealing of tunnel type vacuum furnace multistage temperature, and Annealing Protection gas is N 2, concrete processing step is as follows: will descend claw pole stator I13, following claw pole stator II14, following claw pole stator III16 or go up claw pole stator 9 to lie on the conveyer belt, and slowly be delivered to 900 ± 10 ℃ of sections, and be incubated 2 hours; Moving ahead then is cooled to 700 ℃ of sections, and cooling rate should be less than or equal to 50 ℃/hour, and continuing to move ahead cools to the furnace below 500 ℃, is transmitted by conveyer belt and comes out of the stove to end fitting collection place; Adopt punch forming to form down short-circuited conducting sleeve 15 with a brass sheet; Then will descend again claw pole stator I13, down claw pole stator II14, short-circuited conducting sleeve 15 and following claw pole stator III16 process through point welding process from top to down and are fixed together successively and form down the claw pole stator assembly down;
2., form claw pole stator 9 with magnetic property good pure iron plate punching press respectively, brake forming; the part that bending makes progress forms the dewclaw utmost point 91; and then last claw pole stator 9 is carried out stress annealing handle; the processing mode of stress annealing adopts the continuous annealing of tunnel type vacuum furnace multistage temperature, and Annealing Protection gas is N 2, concrete processing step is as follows: will go up claw pole stator 9 and lie on the conveyer belt, and slowly be delivered to 900 ± 10 ℃ of sections, and be incubated 2 hours; Moving ahead then is cooled to 700 ℃ of sections, and cooling rate should be less than or equal to 50 ℃/hour, and continuing to move ahead cools to the furnace below 500 ℃, is transmitted by conveyer belt and comes out of the stove to end fitting collection place; Adopt punch forming to form short-circuited conducting sleeve 10 with a brass sheet; Adopt punch forming to form internal short-circuit ring 4 with a brass sheet;
3., form rotor disk 18 with an aluminium sheet punch forming; Form rotor ring 12 with a high carbon tool steel band punch forming, and then this rotor ring 12 is carried out vacuum hardening handle, vacuum hardening adopts the tunnel type vacuum furnace to quench, and the protection gas that quenches is N 2, concrete processing step is as follows: rotor ring 12 is lain on the conveyer belt, slowly delivered to 820 ± 10 ℃ of sections, be incubated 20 minutes; Move ahead then and leave this section and fall into the oil groove quench cooled, be sent to end fitting collection place by conveyer belt to normal temperature; Then with shaft seat 17 and rotor disk 18 after the riveting working procedure processing, be pressed into rotating shaft 3 again, and then become rotor assembly with after rotor disk 18 and rotor ring 12 riveted joints through the riveting operation.
4., the beginning of stator winding 7, terminal line are welded with terminal pin 51 respectively, then lead-out wire 8 one ends and terminal pin 51 welding, the encapsulating mold of this stator winding 7 being put into injection moulding machine is carried out injection moulding, is sealed again, after the demoulding, at the stator winding 7 peripheral coil encapsulated layers 5 that form;
5., at last above-mentioned each parts are assemblied in the casing.
The operation principle of the hysteresis synchronous motor that the present invention proposes, as shown in Figure 3:
The main flux of motor is by the iron core in the casing 2, descends the claw pole stator assembly, goes up claw pole stator 9, descends gap 11, rotor ring 12 between claw pole stator assembly and the last claw pole stator 9 to form closed-loop paths, suppose to work as certain in a flash, electric current in the stator winding 7 is a clockwise direction, according to the right-hand rule, form with paper axial magnetic field from outside to inside on iron core 2, then the main flux path of this motor is: as shown in Figure 8.
Because the magnetic flux on the last claw pole stator 9 is to come out from magnetic pole, has formed the N utmost point, and the magnetic flux on the following claw pole stator assembly is to enter magnetic pole, forms the S utmost point.Formed the extremely alternate magnetic field of N, S at last claw pole stator 9, following claw pole stator inter-module like this.When the sense of current of stator winding 7 changed, last claw pole stator 9, following claw pole stator assembly were because the also variation thereupon of magnetic pole magnetic that is magnetized and forms.Entangle because of the pawl utmost point 91,6 of short-circuited conducting sleeve 10 and following short-circuited conducting sleeve 15 on having respectively on last claw pole stator 9, the following claw pole stator assembly again 1/2 quantity, (the dewclaw utmost point 91 numbers of this hysteresis synchronous motor are 12 to form split-pole, the lower claw utmost point 6 numbers also are 12, and then the split-pole number average that forms on the dewclaw utmost point 91, the lower claw utmost point 6 is 6).After single-phase alternating current feeds stator winding 7, produce the pulsation magnetic flux at last claw pole stator 9, following claw pole stator inter-module: above claw pole stator 9 is an example, if the magnetic flux that not passing the magnetic flux of short-circuited conducting sleeve 10 and internal short-circuit ring 4 parts is Φ 1, pass short-circuited conducting sleeve 10 and internal short-circuit ring 4 parts is Φ 2, the latter will produce induced current in last short-circuited conducting sleeve 10, make the split-pole resultant flux Φ 3 that passes short-circuited conducting sleeve 10 parts lag behind Φ 1.Since these two magnetic fluxs in the locus and the time phase place all there are differences, thereby produced elliptic rotating field, its direction of rotation always turns to the quilt cover part from the end cover part of magnetic pole, is axis with the A line, and direction is counterclockwise, in like manner, following claw pole stator inter-module has also produced elliptic rotating field, is axis with the B line, and direction is counterclockwise, as can be seen from Figure 5, the turning to of elliptic rotating field of last claw pole stator 9, claw pole stator assembly formation down is counterclockwise.(the present invention is 30 °) cooperation back formation at a certain angle of upper and lower like this claw pole stator assembly turns to and is anticlockwise elliptic rotating field, makes rotor ring 12 hysteresis materials magnetization back also produce hysteresis torque with it.Under the effect of this hysteresis torque, make rotor ring 12 startings until entering synchronous operation.The rotation of rotor ring 12 drives rotating shaft 3 and rotates, and rotating shaft 3 drives great wheel 22 and rotates, and great wheel 22 is rotated by the transmission case assembly 20 final output shafts 23 that drive this hysteresis synchronous motor, and machine operation is finished.

Claims (9)

1, a kind of hysteresis synchronous motor includes a casing (1);
It is characterized in that being provided with in the casing (1) iron core (2) of axial hollow, a rotating shaft (3) runs through by bearing (21) and is arranged in the iron core (2);
Sheathedly on iron core (2) top fix one and have the down following claw pole stator assembly of short-circuited conducting sleeve (15), a plurality of lower claw utmost points (6) that this time claw pole stator assembly radially distributes along circumference are separated by following short-circuited conducting sleeve (15) between the lower claw utmost point (6) adjacent one another are and form split-pole;
Iron core (2) middle part is arranged with stator winding (7), and the beginning of stator winding (7), end link to each other with the lead-out wire that passes casing (1) (8) respectively;
The sheathed claw pole stator (9) that is fixed with in iron core (2) bottom, should go up claw pole stator (9) and upwards a plurality of dewclaw utmost points (91) of bending be arranged along circumferentially-spaced, the number of the dewclaw utmost point (91) is identical with the number of the lower claw utmost point (6), on the dewclaw utmost point (91), be arranged with the last short-circuited conducting sleeve (10) that matches with the dewclaw utmost point (91), separated by last short-circuited conducting sleeve (10) between the dewclaw utmost point (1) adjacent one another are and form split-pole, be arranged with internal short-circuit ring (4) at iron core (2) middle part, internal short-circuit ring (4) is positioned at the dewclaw utmost point (91), and contacts with last short-circuited conducting sleeve (10) upper surface;
Form an annular gap (11) between described claw pole stator assembly down and the last claw pole stator (9);
The sheathed rotor assembly that is fixed with in described rotating shaft (3) upper end, the rotor assembly edge has the rotor ring (12) of downward bending, and this rotor ring (12) is positioned between the annular gap (11).
2, hysteresis synchronous motor according to claim 1 is characterized in that described claw pole stator assembly down has 12 lower claw utmost points (6), and the described claw pole stator of going up has 12 dewclaw utmost points (91).
3, hysteresis synchronous motor according to claim 1, it is characterized in that described stator winding (7) is encapsulated in the coil encapsulated layer (5) that has terminal pin (51), the beginning of stator winding (7), end respectively with coil encapsulated layer (5) in terminal pin (51) link to each other, described lead-out wire (8) then links to each other with terminal pin (51).
4, hysteresis synchronous motor according to claim 2 is characterized in that described claw pole stator assembly down is by claw pole stator I (13), following claw pole stator II (14), following short-circuited conducting sleeve (15), following claw pole stator III (16) form down; Six L-shaped lower claw utmost points (6) that following claw pole stator I (13) and following claw pole stator II (14) radially distribute along circumference, six lower claw utmost points (6) that following claw pole stator III (16) also radially distributes along circumference; The upper surface of following short-circuited conducting sleeve (15) has six recesses (151) spaced apart and recessed and radially run through, and the following lower surface of short-circuited conducting sleeve (15) recess (152) that has six spaced apart and fovea superiors and radially run through, the interlaced distribution of recess (152) of recessed recess (151) and fovea superior; Following claw pole stator I (13), following claw pole stator II (14), following short-circuited conducting sleeve (15), following claw pole stator III (16) assemble successively from top to down and are fixed together; Wherein descend the lower claw utmost point (6) on claw pole stator I (13) and the following claw pole stator II (14) to overlap, and the lower claw utmost point (6) on the following claw pole stator III (16) and the lower claw utmost point (6) on following claw pole stator I (13) and the following claw pole stator II (14) stagger mutually and form 12 lower claw utmost points (6), and the lower claw utmost point (6) on following claw pole stator I (13) and the following claw pole stator II (14) radially passes down the recess (151) of short-circuited conducting sleeve (15) upper surface, thereby the lower claw utmost point (6) on the following claw pole stator III (16) radially passes down the recess (152) of short-circuited conducting sleeve (15) lower surface forms split-pole.
5, hysteresis synchronous motor according to claim 2, it is characterized in that described claw pole stator (9) edge of going up has upwards at an angle of 90 and six pairs of dewclaw utmost points (91) uniformly at intervals, every pair of dewclaw utmost point (91) is made of at interval two dewclaw utmost points (91), the described inner ring surface of going up short-circuited conducting sleeve (10) has six outside recessed and recesses (101) of axially running through, the outer ring surface of last short-circuited conducting sleeve (10) has six recesses that concave and axially run through (102), and the outer recessed recess (101) and the interlaced distribution of recess (102) of indent, adjacent two dewclaw utmost points (91), one of them dewclaw utmost point (91) passes the recess (101) of indent, another dewclaw utmost point (91) passes outer recessed recess (102) thereby forms split-pole.
6, hysteresis synchronous motor according to claim 1, it is characterized in that described rotor assembly is made up of shaft seat (17), rotor disk (18) and rotor ring (12), wherein shaft seat (17) is fixed on the upper end of rotating shaft (3), rotor disk (18) is sheathed to be fixed on the shaft seat (17), rotor ring (12) then and rotor disk (18) be fixed together.
7, a kind of technology of making as claim 1 or 2 or 3 or 4 or 5 or 6 described hysteresis synchronous motors is characterized in that this technology comprises the steps:
1., with the good pure iron plate of magnetic property respectively punch forming form down claw pole stator I (13), claw pole stator II (14) and following claw pole stator III (16) down, and then respectively to claw pole stator I (13), time claw pole stator II (14) and following claw pole stator III (16) carry out the stress annealing processing down; Adopt punch forming to form down short-circuited conducting sleeve (15) with a brass sheet; Then will descend again claw pole stator I (13), down claw pole stator II (14), short-circuited conducting sleeve (15) and following claw pole stator III (13) process through point welding process from top to down and are fixed together successively and form down the claw pole stator assembly down;
2., form claw pole stator (9), the part that bending makes progress forms the dewclaw utmost point (91), and then last claw pole stator (9) is carried out stress annealing handle with magnetic property good pure iron plate punching press respectively, brake forming; Adopt punch forming to form short-circuited conducting sleeve (10) with a brass sheet; Adopt punch forming to form internal short-circuit ring (4) with a brass sheet;
3., form rotor disk (18) with an aluminium sheet punch forming; Form rotor ring (12) with a high carbon tool steel band punch forming, and then this rotor ring (12) is carried out vacuum hardening handle; Then with shaft seat (17) and rotor disk (18) after the riveting working procedure processing, be pressed into rotating shaft (3) again, and then become rotor assembly with after rotor disk (18) and rotor ring (12) riveted joint through the riveting operation;
4., the beginning of stator winding (7), terminal line are welded with terminal pin (51) respectively, then lead-out wire (8) one ends and terminal pin (51) welding, the encapsulating mold of this stator winding (7) being put into injection moulding machine is carried out injection moulding, is sealed again, after the demoulding, at the peripheral coil encapsulated layer (5) that forms of stator winding (7);
5., at last above-mentioned each parts are assemblied in the casing.
8, technology according to claim 7 is characterized in that the processing mode of described stress annealing adopts the continuous annealing of tunnel type vacuum furnace multistage temperature, and Annealing Protection gas is N 2, concrete processing step is as follows: will descend claw pole stator I (13), following claw pole stator II (14), following claw pole stator III (16) or go up claw pole stator (9) to lie on the conveyer belt, and slowly be delivered to 900 ± 10 ℃ of sections, and be incubated 2 hours; Moving ahead then is cooled to 700 ℃ of sections, and cooling rate should be less than or equal to 50 ℃/hour, and continuing to move ahead cools to the furnace below 500 ℃, is transmitted by conveyer belt and comes out of the stove to end fitting collection place.
9, technology according to claim 7 is characterized in that described vacuum hardening employing tunnel type vacuum furnace quenches, and the protection gas that quenches is N 2, concrete processing step is as follows: rotor ring (12) is lain on the conveyer belt, slowly delivered to 820 ± 10 ℃ of sections, be incubated 20 minutes; Move ahead then and leave this section and fall into the oil groove quench cooled, be sent to end fitting collection place by conveyer belt to normal temperature.
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