CN109905003A - Three-phase ac synchronous motor and electrical equipment - Google Patents
Three-phase ac synchronous motor and electrical equipment Download PDFInfo
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- CN109905003A CN109905003A CN201910301886.6A CN201910301886A CN109905003A CN 109905003 A CN109905003 A CN 109905003A CN 201910301886 A CN201910301886 A CN 201910301886A CN 109905003 A CN109905003 A CN 109905003A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 68
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
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- 239000010687 lubricating oil Substances 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 2
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- 230000000149 penetrating effect Effects 0.000 claims 1
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- 238000005276 aerator Methods 0.000 description 9
- 210000001847 jaw Anatomy 0.000 description 9
- 210000003781 tooth socket Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 241000238557 Decapoda Species 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- 238000009966 trimming Methods 0.000 description 1
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Abstract
The present invention relates to a kind of three-phase ac synchronous motors and electrical equipment for improving structure, three-phase ac synchronous motor includes stator and rotor, rotor includes the power rotor and passive rotor being coaxially arranged, passive rotor is fixed with armature spindle, and power rotor is coupled by torque force limiting device with passive rotor.Having the advantages that can directly three-phase alternating-current supply starting without frequency converter.
Description
Technical field
The present invention relates to the improvement of electric machine structure, and use the motor-driven electrical equipment improved, specifically
It says, is related to a kind of three-phase ac synchronous motor and electrical equipment for improving rotor structure.
Background technique
Existing three-phase ac synchronous motor requires to be used cooperatively with controller, however controller architecture is complicated, cost
High and easy break-down.
In the case of with load, three-phase ac synchronous motor, which does not have to the direct alternating current of controller, to be started, therefore existing
Three-phase ac synchronous motor be all to be used cooperatively with controller, the function of controller first is that by the frequency of three-phase alternating current
Rate, which drags down, starts synchronous motor, then steps up frequency to 50 hertz or higher, to add loaded motor to exist
During this can smooth output power, while the impact to power circuit will not be generated.
Summary of the invention
The present inventor observes for a long time, test after have been found that starting load is sufficiently small under conditions of, such as it is unloaded
When three-phase ac synchronous motor can not have to controller and be started, it is negative when starting for certain three-phase ac synchronous motors
Carry the use occasion without making an immediate response, if it is possible to which huge economic benefit will be generated by omitting controller.
The main object of the present invention is to provide a kind of can smoothly start without controller and to power circuit impact very little
Three-phase ac synchronous motor；
It is a further object of the present invention to provide a kind of electrical equipments driven using above-mentioned three-phase ac synchronous motor.
To realize above-mentioned main purpose, three-phase ac synchronous motor provided by the invention includes stator and rotor, rotor packet
The power rotor and passive rotor being coaxially arranged are included, passive rotor is fixed with armature spindle, and power rotor passes through torque force limiting device
It is coupled with passive rotor.
As can be seen from the above scheme, rotor design is arranged on passive rotor at power rotor and passive rotor, armature spindle, because
The quality of this power rotor is relatively very light, and the moment power rotor that is powered is since very light weight can rotate immediately, and due to actively
Rotor is coupled by torque force limiting device with passive rotor, and the opposite passive rotor that is powered in the power rotor short time after starting is beaten
Sliding, then passive rotor is will be relatively slowly driven by power rotor by torque force limiting device, rotates synchronously until with power rotor,
Load during this on armature spindle is slowly applied again after certain angle after power rotor has been rotated by, therefore, one
Aspect realizes starting in the case of eliminating controller, on the other hand greatly reduces to the impact of power circuit.The present invention
Torque force limiting device, be also torque limiter, safety coupling or flexible coupling in the prior art, have angle compensation
Can, skid between power rotor and passive rotor because of overload when electric motor starting, then gradually restore power rotor with by turn
The connection of son, i.e. lag are coupled.
Further embodiment is that torque force limiting device keeps power rotor relatively passive when having three-phase ac synchronous motor starting
Rotor sliding, lag drives the sliding torque of passive rotor after the power rotor rotation.
Further scheme is the passive rotor body that passive rotor has relative rotor axis fixed, and torque force limiting device includes
The friction clamp rotated with passive rotor body；A part of cricoid brake disk, brake disk is located in the jaw of friction clamp, the periphery of brake disk
Wall is with respect to the internal perisporium of power rotor at least circumferential and radially fixed.
It includes caliper that further scheme, which is friction clamp, is arranged in and clamps intracorporal a pair of friction plate and one for forming jaw
Block pressur plate, pressing plate are fixed on caliper by fastener, and the elastic component for forcing jaw to be engaged is equipped between pressing plate and friction plate.
Another further scheme is the first passive rotor body that passive rotor has relative rotor axis fixed, opposite to turn
Sub- axis is circumferentially fixed, in axial sliding the second passive rotor body；Torque force limiting device is included in circumferentially opposed first passive rotor body
The fixed multi-disc driven friction with the second passive rotor body, in the multi-disc active friction plate that circumferentially opposed power rotor is fixed,
Multi-disc driven friction and multi-disc active friction plate are staggeredly stacked in the axial direction and in the axial direction by for generating frictional force
Normal pressure；The periphery wall of active friction plate with respect to power rotor internal perisporium at least circumferentially fixed.
It further includes forcing the second passive rotor body passive axially move closer to first that further scheme, which is torque force limiting device,
First pressure spring of rotor block；The spring abutment hole on the first passive rotor body is passed axially through, is fixed on the second passive rotor body, or
Spring abutment hole on the second passive rotor body, the housing screw being fixed on the first passive rotor body；First pressure spring is placed
In spring abutment hole.
It further includes forcing the second passive rotor body passive axially move closer to first that also further embodiment, which is torque force limiting device,
Second pressure spring of rotor block；One end of armature spindle has tubular chamber, and the axial end face at the end, which is provided with, penetrates tubular along axial direction
The pressure regulating screw of chamber, the peripheral wall of tubular chamber are equipped with the waist round hole radially penetrated through, and for the long axis of waist round hole along axially, a pin wears oval
Hole is simultaneously fastened on the second passive rotor body；Second pressure spring disposes in the cylinder of armature spindle, is pressed between pressure regulating screw and pin.
Another further scheme is the power rotor chamber that there is power rotor a sealing to accommodate passive rotor, actively
Rotor chamber accommodates lubricating oil, and it is intracavitary that torque force limiting device is located at power rotor.
Further scheme is that one end of armature spindle has tubular chamber, and the axial end face at the end is provided with wears along axial direction
Enter the pressure regulating screw of tubular chamber, the peripheral wall of tubular chamber is equipped with the waist round hole radially penetrated through, and the long axis of waist round hole is along axial a, pin
It wears the waist round hole and is pressed on the second passive rotor body on the axial end face of the first passive rotor body；Tubular chamber passes through institute
Waist round hole is stated to be connected to power rotor chamber.
Another object to realize the present invention, electrical equipment provided by the invention include motor, and motor is using any of the above-described
Three-phase ac synchronous motor in scheme.Electrical equipment is industrial electric fan or air compressor or aerator or elevator or elevator
Machine.
The advantages of above-mentioned each scheme, will illustrate in corresponding embodiment.
Detailed description of the invention
Fig. 1 is the main view of three-phase ac synchronous motor first embodiment of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the structural exploded view of three-phase ac synchronous motor first embodiment of the present invention；
Fig. 4 is the cross-sectional view of electric machine casing and stator in three-phase ac synchronous motor first embodiment of the present invention；
Fig. 5 is the structure chart of the second passive rotor body in three-phase ac synchronous motor first embodiment of the present invention；
Fig. 6 is the B-B cross-sectional view of Fig. 5；
Fig. 7 is the structure chart of the first passive rotor body in three-phase ac synchronous motor first embodiment of the present invention；
Fig. 8 is the C-C cross-sectional view of Fig. 7；
Fig. 9 is the perspective view of armature spindle in three-phase ac synchronous motor first embodiment of the present invention；
Figure 10 is the perspective view of driven friction in three-phase ac synchronous motor first embodiment of the present invention；
Figure 11 is the perspective view of active friction plate in three-phase ac synchronous motor first embodiment of the present invention；
Figure 12 is the sectional structure chart of three-phase ac synchronous motor second embodiment of the present invention；
Figure 13 is power rotor and the perspective view after the assembling of brake disk in three-phase ac synchronous motor second embodiment of the present invention；
Figure 14 is the structural exploded view of three-phase ac synchronous motor second embodiment of the present invention；
The main view of passive rotor body in Figure 15 three-phase ac synchronous motor second embodiment of the present invention；
Figure 16 is the top view of Figure 15；
Figure 17 is the perspective view of armature spindle in three-phase ac synchronous motor second embodiment of the present invention；
Figure 18 is that friction clamp omits the solid after yielding rubber body in three-phase ac synchronous motor second embodiment of the present invention
Figure；
Figure 19 is the D-D cross-sectional view of Figure 18；
Figure 20 is the E-E cross-sectional view of Figure 18；
Figure 21 is that friction clamp omits another view after yielding rubber body in three-phase ac synchronous motor second embodiment of the present invention
The perspective view at angle；
Figure 22 is power rotor in three-phase ac synchronous motor second embodiment of the present invention, passive rotor and friction clamp assembling
Cross-sectional view under state；
Figure 23 is the sectional structure chart of three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 24 is the structural exploded view of three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 25 is the main view of lower power rotor body in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 26 is the perspective view of Figure 25；
Figure 27 is the main view of upper power rotor body in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 28 is the perspective view of Figure 27；
Figure 29 is the main view of the second passive rotor body in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 30 is the perspective view of Figure 29；
Figure 31 is the perspective view of the first passive rotor body in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 32 is the structure chart of pressure spring plate in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 33 is the structure chart of driven friction in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 34 is the structure chart of active friction plate in three-phase ac synchronous motor 3rd embodiment of the present invention；
Figure 35 is the perspective view of armature spindle in three-phase ac synchronous motor 3rd embodiment of the present invention.
Each scheme of the invention is further illustrated below in conjunction with each embodiment and its attached drawing.
Specific embodiment
Three-phase ac synchronous motor first embodiment
Referring to Fig. 1, three-phase ac synchronous motor 1 of the invention has a shell 12 and is fastenedly connected therewith by fastener
Lid 11, be one 40 poles three-phase ac synchronous motor.It will be appreciated by persons skilled in the art that magnetic pole be 16 grades or
Be incremented by for the three-phase ac synchronous motor of magnetic pole on the basis of this with even number, can in the case of saving frequency converter directly by
Three-phase alternating current is started, and number of poles is more, and the revolving speed of three-phase ac synchronous motor is lower, is more conducive to start.
Referring to fig. 2, stator 13 is fixedly mounted in shell 12, and armature spindle 153 passes through the axis on a pair of two lids 11 respectively
19 bearings are held, passive rotor 15 (see Fig. 3) is made of the first passive rotor body 151 and the second passive rotor body 152, wherein first
Passive rotor body 151 is fixed on armature spindle 153, and the axis hole of the second passive rotor body 152 is connect with armature spindle by feather key,
And then relative rotor axis 153 in circumferentially fixed axial direction slidably.Power rotor 14 and passive rotor 15 are coaxially arranged,
Four edges are provided on internal perisporium axially along the tooth socket 141 stretched, power rotor 14 is on radial and axial by passive rotor 15
Eaves portion limitation.It is coupled between power rotor 14 and passive roller 15 by a torque force limiting device 16.
Referring to Fig. 3, the torque force limiting device 16 of this example is by multi-disc driven friction 161, multi-disc active friction plate 162, four
First the second pressure spring 166 of 165, one, the washer of housing screw 164, four of pressure spring 163, four and a pressure regulating screw 167 are constituted.
Sealing ring is provided between the axis hole and armature spindle 153 of lid 11.
In conjunction with Fig. 2 and Fig. 3, multi-disc driven friction 161 is staggeredly stacked in the axial direction with multi-disc active friction plate 162
, both circular pieces.The housing screw 164 for being cased with washer 165 and the first pressure spring 163 passes through the second passive rotor body
Spring abutment hole on 152 is fixed in the screw hole of the first passive rotor body 151, is fixed on the first pressure spring 163 in spring abutment, and first
The restoring force of pressure spring 163 forces the second passive rotor body 152 axially move closer to the first passive rotor body 151, and then makes staggeredly to fold
It is upwarded pressure between the active friction plate 162 set and driven friction 161 by axis, which is 162 phase of active friction plate
When being rotated about axis trend to driven friction 161, the normal pressure of frictional force is generated.By housing screw 164 screw or
It unscrews, the size of the normal pressure can be adjusted, that is, the sliding torque of torque force limiting device is adjusted, and then makes
Torque force limiting device 16 rotates power rotor immediately when meeting electric motor starting of the present invention, and opposite passive rotor slides, hysteresis band
The design requirement that dynamic passive rotor gradually rotates synchronously.Second pressure spring 166 is placed in armature spindle 153, and one end is pressed on pin 1533
On, other end low pressure can be finely adjusted sliding torque in 167 lower end of pressure regulating screw, behind specific structure and method for trimming
It is described in detail.
Referring to fig. 4, stator 13 is fixed in lid 11 and shell 12, and structure can be implemented by prior art.
Referring to Fig. 5, Fig. 6, there are four spring abutment 1521, cricoid upper eaves portion 1523, axis for setting on the second passive rotor body 152
Hole 1524, pin hole 1525, four axially along the tooth socket 1526 stretched.The bottom of spring abutment 1521 is equipped with and passes through for housing screw 164
Spring abutment hole 1522, axis hole 1524 and armature spindle 153 are cooperated by feather key, and pin hole 1525 is used for fixed pin 1533.
Referring to Fig. 7, Fig. 8, there are four screw hole 1511, cricoid lower entablature 1512, axis for setting on the first passive rotor body 151
Hole 1513, four axially along the tooth socket 1514 stretched.Housing screw 164 is screwed in screw hole 1511, for radial and axial
The eaves portion of constraint power rotor 14 is made of upper eaves portion 1523 and lower entablature 1512, to keep power rotor 14 relatively passive
15 coaxial line rotational slide of rotor.
Obviously, spring abutment 1521 can be set on the first passive rotor body 151, and screw hole 1511 is arranged second by turn
In daughter 152, such as aforementioned installation reversed in the axial direction of housing screw 164 equally can be implemented and realize design mesh of the invention
's.
Referring to Fig. 9, the upper end of armature spindle 153 is equipped with tubular chamber, and the end face at the end is then equipped with screw hole 1532, for pressure regulating screw
167 screw in, and the peripheral wall of tubular chamber is equipped with the waist round hole 1531 radially penetrated through, and pin 1533 passes through waist round hole 1531 and can be wherein
It is axially moveable, when pressure regulating screw 167 is screwed or unscrewed, the restoring force variation of second pressure spring 166 intracavitary positioned at tubular can make
The axially opposed armature spindle 153 of second passive rotor body 152 is mobile, realizes the fine tuning to sliding torque.
Referring to Figure 10, there are four radially inward along the tooth 1611 stretched on the internal perisporium of driven friction 161, tooth 1621 with
Tooth socket 1526 or tooth socket 1514 cooperate, and realize driven friction 161 with respect to the second passive rotor body 152 or the first passive rotor body
151 in the circumferential relatively fixed.
Referring to Figure 11, there are four radially along the tooth 1621 stretched on the periphery wall of active friction plate 162, tooth 1621 with
Tooth socket 141 cooperates, and realizes active friction plate 162 with respect to the fixation of power rotor 14 in the circumferential.
In the case of controller is omitted, to directly initiate three-phase ac synchronous motor using three-phase alternating current alternating current, this
The main inventive concept of invention is to try to mitigate the weight of rotor, and technical solution provided by the invention is by rotor design at actively
Rotor and passive rotor, by passive rotor output power, and passive rotor is lagged by power rotor and is driven, i.e., under light car conditions
Passive rotor is driven to rotate again after power rotor starting.
Three-phase ac synchronous motor second embodiment
Only the structure and connection relation difference of this example and three-phase ac synchronous motor first embodiment are subject to below
It is described in detail, something in common repeats no more.
Referring to Figure 12,14 structure of power rotor of this example is simpler, only rotor drum and is fixed on its periphery wall
Magnetic links, and passive rotor is made of fixed a pair of of the passive rotor body 150 of a pair of of relative rotor axis 153, torque force limiting device by
Opposite 150 fixed in position of passive rotor body, a pair of of the friction clamp 17 and a brake disc 18 rotated with passive rotor body 150 are constituted.
Referring to Figure 13, power rotor 4 is made of rotor drum 142 with the muti-piece magnetic links 143 being fixed on its periphery wall.It stops
Disk 18 is a circular sheet, and periphery wall is fixedly connected with the internal perisporium of rotor drum 142, so that opposite power rotor is fixed
Connection.Obviously, if brake disk 18 is designed to the toothed planform of active friction plate 162 in example, and in rotor drum 142
It is correspondingly arranged strip slot on peripheral wall, makes brake disk 18 that circumferential and radially fixed, this hair equally may be implemented with respect to power rotor 14
Bright purpose.
It is identical with upper example marked as part identical with upper example or structure, a pair of of passive rotor body in figure referring to Figure 14
150 structure almost symmetries, a pair of of friction clamp 17 are clamped in symmetric about the axisly in a pair of of brake disc 150.Every friction clamp
17 by a caliper 170, a pair of friction plate 171 for forming jaw, 173, two, the screw of a block pressur plate 172, three gasket 174,
Two pressure springs 175 and a pair of yielding rubber body 176 for being fixed on the circumferential end of caliper 170 are constituted.
Referring to Figure 15, Figure 16, every passive rotor body 150 is provided with a pair of clamp block 1501 for having axial opening, so as to group
Friction clamp 17 is constrained in clamp block 1501 when dressing up passive rotor 15.It also is provided with eaves portion 1502 on periphery, in axial direction
Power rotor 14 is limited with radial, circumferentially rotate power rotor 14 can only with respect to passive rotor.It is installed in a manner of shelving
For friction clamp 17 in clamp block during power rotor 14 skids with respect to passive rotor, friction clamp 17 will be in circumferential impact
Clamp block 1501 can be buffered effectively after yielding rubber body 176 is arranged and reduce starting noise.Since friction clamp 17 exists about jaw
It is axial be not it is symmetrical, therefore, the clamp block 1501 that pressing plate 172 faces it is opposite back to clamp block 1501 it is bigger in axial size.
Referring to Figure 17, armature spindle 153 is used for the axial direction between two shoulders 1534 of 150 axial limiting of passive rotor body
Distance should meet following condition, i.e., after 150 relative rotor axis 153 of passive rotor body is installed in place, power rotor 14 is in the axial direction
It is clearance fit between passive rotor 15.
Referring to Figure 18 to Figure 20, pressing plate 172 is fixed on caliper 170 by three screws 173, and pressing plate is two pressure springs
175 are pressed between friction plate 171 and gasket 174 (invisible in figure), are engaged the jaw 177 formed between two friction plates 171
Brake disk 18 protrudes into the part of jaw 177.
Referring to fig. 21, the bite force of adjustable jaw 177 elastic by screwing for screw 173, i.e. torque force limiting device
Sliding torque.
Referring to fig. 22, this graph show that the relative positional relationship between power rotor 14 and passive rotor 15, friction clamp 17
Positional relationship between the relative positional relationship and jaw 177 and brake disk 18 of passive rotor 15.
Obviously, passive rotor 15 is not necessarily designed to by the structure type of two passive rotor bodies 150, art technology
Personnel can be designed to a passive rotor body completely, and have the eaves portion of limitation power rotor 14 and the fixation of fixed friction pincers
The purpose of the present invention equally can be achieved in portion.
Three-phase ac synchronous motor 3rd embodiment
Referring to fig. 23, this example and upper two main differences are power rotor 14, passive rotor 15 and torque force limiting device 16
Specific structure shape it is different.Power rotor 14 is fixedly connected by rotor drum 142, upper rotor part body 144 with lower rotor part body, and is being turned
Fixed magnetic links 143 form outside auxiliary cylinder 142, and feature is to form a sealing between upper rotor part body 144 and lower rotor part body 145 to hold
It receives the power rotor chamber 146 of passive rotor 15, accommodates lubricating oil in the power rotor chamber 146.Passive rotor 15 includes and turns
The the first passive rotor body 151 and relative rotor axis 153 that sub- axis 153 is fixedly connected are circumferentially fixed in axial sliding second by turn
Daughter 152.The effect of one pressure regulating screw 167 and second pressure spring 166 and a pin 1533 is identical as first case, in addition,
Also have the function to the injection of power rotor chamber 146, make-up oil concurrently.
Referring to fig. 24, this example middle cover 11, shell 12, the structure of stator 13 are identical with first two, and lower rotor part body 145 has
The power rotor chamber of one opening upward, the opening form the power rotor chamber of sealing after being covered by the sealing of upper rotor part body 144
146.One group of active friction plate, 161, one groups of driven frictions 162 are staggeredly stacked in the axial direction, and it is passive first to be compressed axially
Between rotor 151 and the second passive rotor 152, by six housing screws 156 pass through pressing plate 154 and six the first pressure springs 155 and
Spring abutment hole on second passive rotor body 152 is fixed on the first passive rotor body 151, constitutes this example torque force limiting device 16
Primary structure.It is small using the automobile-used CG125 clutch of commercially available motor in this example in view of save the cost and the factor of assembly technology
Therefore drum assembly is no longer described in detail its specific structure.
5 and Figure 26 referring to fig. 2, lower rotor part body 145 have a power rotor chamber 146 of a upper end opening, eaves portion 1453 with turn
Auxiliary cylinder 142 is fixedly connected, formed power rotor chamber 146 peripheral wall inner surface be provided with it is axial for active friction plate 161,
That is the tooth socket 1451 of clutch side drum assembly friction plate external tooth cooperation, axis hole 1452 and 153 clearance fit of armature spindle, and and armature spindle
It is provided between 153 and constitutes the necessary oil sealing of power rotor chamber 146.
7 and Figure 28 referring to fig. 2, upper rotor part body 144 have eaves portion 1442 and with being cooperated by oil sealing with armature spindle 153
Axis hole 1441 passes through the master for being assembled to form sealing of fastener and sealing ring when clutch side drum assembly loading power rotor chamber 146
After dynamic rotor chamber 146, then eaves portion 1442 is fixedly connected with rotor drum 142.
9 and Figure 30 referring to fig. 2, there are six press spring base 1521, spring abutment hole 1522 and armature spindles for the second passive rotor 152 tool
The axis hole 1524 of 153 clearance fits, a plurality of axially along the tooth socket 1526 stretched, the cotter way 1527 on axial end face is for constraining
Pin 1533.
Referring to Figure 31, there are six screw holes 1511 for setting on the first passive rotor 151, are screwed into for housing screw 156, axis hole
1513 are fixedly connected with armature spindle 153.
Referring to Figure 32, the effect of pressing plate 154 in this example acts on identical with the pressing plate 172 in second case.
Referring to Figure 33 and Figure 34, active friction plate 162 in this example to driven friction 161 is corresponding in first case rubs
Pad effect is also identical, is only that the setting of tooth is slightly different in structure.
Referring to Figure 35, armature spindle 153 is provided with the spline 1535 of assembly clutch side drum assembly, and supply and marketing 1533 passes through and phase
To the waist round hole 1531 of sliding, the power rotor chamber 146 of 1531 communication seals of waist round hole, in addition, being additionally provided on armature spindle 153
The endless groove 1536 of fixed oil sealing.
Electrical equipment first embodiment
What it is as electrical equipment first embodiment of the present invention is industrial electric fan, and industrial electric fan is widely used in workshop, workshop
Interior ventilation or cooling are made of bracket, motor, flabellum and shield, and motor uses the above-mentioned reality of three-phase ac synchronous motor of the present invention
It applies any a in example.
Electrical equipment second embodiment
What it is as electrical equipment second embodiment of the present invention is air compressor, and air compressor is widely used in compress
Machine is in the production activity of power source, and for the compressor of this example by a motor driven, motor synchronizes electricity using three-phase alternating current of the present invention
It is any a in machine above-described embodiment.
Electrical equipment 3rd embodiment
What it is as electrical equipment 3rd embodiment of the present invention is aerator, and aerator is widely used in fish production, example
Aerator is equipped with during half congealed or feeding shrimp of such as breeding fish is half congealed, for the aerator of this example by a motor driven, motor uses three-phase of the present invention
Ac synchronous motor 3rd embodiment.Utilize the floating body of existing aerator, rack and impeller, that is, the existing aerator of Jiang Yitai
Asynchronous machine is removed, and the motor of a playscript with stage directions invention three-phase ac synchronous motor 3rd embodiment is installed, through turning to this example aerator
Sub- axis revolving speed it is actually detected, revolving speed when design speed is 150 revs/min of rotor startup is about 110 revs/min to 120
Rev/min, reach design speed after about 10 seconds.Observation by ammeter to starting current, starting current is much smaller than asynchronous
The starting current of motor also has and drops significantly to the impact of power circuit under the premise of having synchronous motor power factor height
Low advantage.
Electrical equipment fourth embodiment
What it is as electrical equipment fourth embodiment of the present invention is elevator, and elevator is widely used in skyscraper, is mainly had
Any a motor as driving force in sedan-chair cage, pulley blocks and the above-mentioned three-phase ac synchronous motor embodiment of use.
The 5th embodiment of electrical equipment
What it is as the 5th embodiment of electrical equipment of the present invention is hoist engine, and hoist engine is widely used in engineering construction field,
It is made of rack, reel and motor etc., motor is using any a in three-phase ac synchronous motor above-described embodiment of the present invention.
Equipment component in above each electrical equipment embodiment in addition to motor, those skilled in the art completely can be according to
It is implemented according to the prior art, such as bracket, flabellum and its shield of industrial electric fan；Floating body, rack of aerator etc..
Claims (10)
1. three-phase ac synchronous motor, including stator and rotor；
It is characterized by:
The rotor includes the power rotor and passive rotor being coaxially arranged；
The passive rotor is fixed with armature spindle；
The power rotor is coupled by a torque force limiting device with the passive rotor.
2. three-phase ac synchronous motor according to claim 1, it is characterised in that:
There is the torque force limiting device three-phase ac synchronous motor to keep the power rotor relatively described by turn when starting
Son sliding, lag drives the sliding torque of the passive rotor after the power rotor rotation.
3. three-phase ac synchronous motor according to claim 1 or claim 2, it is characterised in that:
The passive rotor body that the passive rotor has the relatively described armature spindle fixed；
The torque force limiting device includes the friction clamp rotated with the passive rotor body；Cricoid brake disk, one of the brake disk
Quartile is in the jaw of the friction clamp；
The internal perisporium of the relatively described power rotor of the periphery wall of the brake disk is at least circumferential and radially fixed.
4. three-phase ac synchronous motor according to claim 3, it is characterised in that:
The friction clamp includes caliper, and the intracorporal a pair of friction plate and a block pressur plate for forming jaw of the pincers is arranged in, described
Pressing plate is fixed on the caliper by fastener, is equipped between the pressing plate and the friction plate and is forced the jaw to be engaged
Elastic component.
5. three-phase ac synchronous motor according to claim 1 or claim 2, it is characterised in that:
The first passive rotor body that the passive rotor has the relatively described armature spindle fixed, the relatively described armature spindle are circumferentially solid
Determine, in axial sliding the second passive rotor body；
The torque force limiting device includes fixed in the circumferentially opposed first passive rotor body and the second passive rotor body
Multi-disc driven friction, in the multi-disc active friction plate that the circumferentially opposed power rotor is fixed, the multi-disc driven friction
It is staggeredly stacked in the axial direction with the multi-disc active friction plate and in the axial direction by the normal pressure for generating frictional force；
The internal perisporium of the relatively described power rotor of the periphery wall of the active friction plate is at least circumferentially fixed.
6. three-phase ac synchronous motor according to claim 5, it is characterised in that:
The torque force limiting device further includes forcing the second passive rotor body axially move closer to the first passive rotor body
First pressure spring；
The spring abutment hole on the first passive rotor body is passed axially through, is fixed on the second passive rotor body, or pass through
Spring abutment hole on the second passive rotor body, the housing screw being fixed on the first passive rotor body；
First pressure spring is placed in the spring abutment hole.
7. three-phase ac synchronous motor according to claim 6, it is characterised in that:
The torque force limiting device further includes forcing the second passive rotor body axially move closer to the first passive rotor body
Second pressure spring；
One end of the armature spindle has tubular chamber, and the axial end face at the end is provided with the tune that the tubular chamber is penetrated along axial direction
Screw is pressed, the peripheral wall of the tubular chamber is equipped with the waist round hole radially penetrated through, and for the long axis of the waist round hole along axially, a pin wears institute
It states waist round hole and is fastened on the second passive rotor body；
Second pressure spring disposes in the cylinder of the armature spindle, is pressed between the pressure regulating screw and the pin.
8. three-phase ac synchronous motor according to claim 5, it is characterised in that:
The power rotor chamber that there is the power rotor sealing to accommodate the passive rotor, the power rotor chamber accommodate
Lubricating oil；
It is intracavitary that the torque force limiting device is located at the power rotor.
9. three-phase ac synchronous motor according to claim 8, it is characterised in that:
One end of the armature spindle has tubular chamber, and the axial end face at the end is provided with the axial pressure regulation for penetrating the tubular chamber
Screw, the peripheral wall of the tubular chamber are equipped with the waist round hole radially penetrated through, and the long axis of the waist round hole along axially, wear described by a pin
Waist round hole is simultaneously pressed on the second passive rotor body on the axial end face of the first passive rotor body；
The tubular chamber is connected to by the waist round hole with the power rotor chamber.
10. electrical equipment, including motor；
It is characterized by:
The motor is any one of claim 1 to 8 three-phase ac synchronous motor.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301886.6A CN109905003A (en) | 2019-04-16 | 2019-04-16 | Three-phase ac synchronous motor and electrical equipment |
| PCT/CN2019/129849 WO2020155999A1 (en) | 2019-02-01 | 2019-12-30 | Three-phase alternating-current synchronous motor and electrical equipment |
| US17/427,297 US20220149707A1 (en) | 2019-02-01 | 2019-12-30 | Three-phase alternating-current synchronous motor and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301886.6A CN109905003A (en) | 2019-04-16 | 2019-04-16 | Three-phase ac synchronous motor and electrical equipment |
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| CN109905003A true CN109905003A (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910301886.6A Pending CN109905003A (en) | 2019-02-01 | 2019-04-16 | Three-phase ac synchronous motor and electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155999A1 (en) * | 2019-02-01 | 2020-08-06 | 珠海绿田机械有限公司 | Three-phase alternating-current synchronous motor and electrical equipment |
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Application publication date: 20190618 |
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