CN104300711B - Wheel spoke type electric motor and the Winch for elevator of use wheel spoke type electric motor - Google Patents
Wheel spoke type electric motor and the Winch for elevator of use wheel spoke type electric motor Download PDFInfo
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- CN104300711B CN104300711B CN201410333600.XA CN201410333600A CN104300711B CN 104300711 B CN104300711 B CN 104300711B CN 201410333600 A CN201410333600 A CN 201410333600A CN 104300711 B CN104300711 B CN 104300711B
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Abstract
The present invention provide a kind of can with the wheel spoke type electric motor of simple structure fixed motor rotor effectively and use wheel spoke type electric motor Winch for elevator.The circumferencial direction of outer circumferential side end being provided with each movable piece (28) unshakable in one's determination arranges the ribbon-shaped members (31) being made up of nonmagnetic substance with multiple window portion (34), by bolt (30), the inner peripheral side end portion of each movable piece (28) unshakable in one's determination is fixed on movable support portion, inner side (23).On the other hand, the outer circumferential side end of each movable piece (28) unshakable in one's determination is inserted and is supported on each window portion (34) of ribbon-shaped members (31) respectively.
Description
Technical field
The present invention relates to a kind of each extend radially in the same plane from the central part of main shaft
Radial (spoke-type) electricity that motor stator and motor rotor are set on bar straight line and constitute
Motivation and the Winch for elevator of use wheel spoke type electric motor.
Background technology
In machine room-less elevator equipment, due to thin type hoister be arranged in liftway limited
In space, so if able to make thin type hoister realize miniaturization, it becomes possible to improve in liftway
The configuration degree of freedom of equipment.Therefore, the thin type hoister used in machine room-less elevator equipment is made
Realize miniaturization critically important, especially make the motor of the important component as thin type hoister realize little
Typeization is critically important.
As one of technology making motor miniaturization, it is known to wheel spoke type electric motor.Radial is electronic
Machine arranges electronic on each bar straight line extended radially in the same plane from the central part of main shaft
Machine stator and motor rotor and constitute, motor rotor make on same circumference multiple permanent magnet with
Shaped, by magnetic material, the multiple movable cores forming and arranging in discontiguous mode each other to hand over each other
Constitute for arranging.In existing wheel spoke type electric motor, it is difficult to by multiple permanent magnets with multiple can
Dynamic iron core forms as one and it is linked with rotary shaft.Known have mainly to simplify structure and to improve system
For the purpose of the property made, by resin cast by permanent magnet, movable core and rotary shaft link component
Deng motor rotor the technology that be integrated and be fixed is integrally formed and in motor stator side
Front end projection is set, and permanent magnet is mounted in this projection technology (such as patent documentation 1,
2)。
Citation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 11-341757 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2003-533158 publication
Brief summary of the invention
The problem that invention is to be solved
, the motor that existing employing resin cast technology manufactures and the electricity using the manufactures such as steel
Motivation is compared, and intensity is low and service life is short.Additionally, permanent magnet is mounted in movably using
During technology in projection unshakable in one's determination, although permanent magnet is fixed by movable core, but due to movable core
It is fixing on the rotary shaft by resin, so the overall intensity of motor rotor cannot be improved and uses the longevity
Life.
It addition, in lift facility, the cable of suspention lift car is wound on the rope sheave of hoist engine,
Lift car is made to lift by making rope sheave rotate, when cable is when shaking up and down, elevator
Car is in above-below direction generation violent oscillatory motion so that riding comfort is deteriorated.Cause cable up and down
The one of the main reasons that direction generation is rocked is that the rotary pulse of the rope sheave on hoist engine is (the most electronic
Machine torque pulsation), it is therefore necessary to this pulsation is suppressed.Motor is caused to produce torque pulsation
Reason have a lot, one of them is the problem of dimensional accuracy of iron core of electric motor, if dimensional accuracy
Not, motor can be caused to produce big torque pulsation.
Summary of the invention
It is an object of the invention to provide one to turn with simple structure fixed motor effectively
The wheel spoke type electric motor of son and the Winch for elevator of use wheel spoke type electric motor.
Solution
To achieve these goals, the present invention provides a kind of wheel spoke type electric motor, and it possesses: outside is solid
Determine support；Movable support portion, inner side, it is formed at the inner side of described outside fixed support portion, and
Opposed with described outside fixed support portion；Multiple motor stators, it is arranged on fixing of described outside
The side opposed with movable support portion, described inner side of bearing portion, and the most equally spaced set
Put；And motor rotor, it is arranged in movable support portion, described inner side, with described motor stator
It is formed with air gap between son, and it is unshakable in one's determination with forever to be alternately provided with movable piece on described circumferencial direction
Magnet for a long time, described wheel spoke type electric motor is characterised by, is being provided with each described movable piece iron core
Arranging ribbon-shaped members on the described circumferencial direction of outer circumferential side end, this ribbon-shaped members is by nonmagnetic substance structure
Become and there is multiple window portion, the inner peripheral side end portion that described movable piece is unshakable in one's determination being fixed on described by bolt
In movable support portion, inner side, and the outer circumferential side end that each described movable piece is unshakable in one's determination is inserted also respectively
It is supported on each window portion of described ribbon-shaped members.
According to said structure, it is possible to by bolt, the inner peripheral side end portion that movable piece is unshakable in one's determination is fixed effectively
In movable support portion, inner side, and can be by the ribbon-shaped members of simple in construction effectively by movable piece
Outer circumferential side end unshakable in one's determination is maintained at centered by bolt on the position that skew occurs.Therefore, it is possible to it is logical
Cross simple structure while holding air gap, to have between motor stator and motor rotor effectively
Effect ground controls the magnetic flux of permanent magnet, it is possible to obtain expeditiously high torque (HT).
It addition, the present invention is on the basis of said structure, it is further characterized in that, is being positioned at and described band
Each described movable piece of the position that the circumferential lateral surface of shape component is corresponding outer circumferential side end unshakable in one's determination is respectively
Forming otch, being fixed on by the outer circumferential side holding plate being made up of nonmagnetic substance can described in adjacent each
Between the described otch that moving part is unshakable in one's determination, kept by described outer circumferential side holding plate and described ribbon-shaped members
The position of described permanent magnet.
Can be simply formed by thin plate according to said structure, outer circumferential side holding plate and ribbon-shaped members, and
And each movable piece can be kept effectively unshakable in one's determination and the periphery of permanent magnet by this simple structure
Side end so that it will not move at circumferencial direction with radially.
It addition, the present invention is on the basis of said structure, it is further characterized in that, at described movable piece ferrum
The inner peripheral side end portion of the vicinity being positioned at described bolt of the heart is provided with position, inner circumferential side maintaining part, this inner circumferential
Side position maintaining part is for limiting the position of the inner peripheral side end portion of described permanent magnet.
According to said structure, it is possible to effectively utilize the simple supporting of the outer circumferential side end of permanent magnet
Structure, limits the position of the inner peripheral side end portion of permanent magnet easily by position, inner circumferential side maintaining part.
Additionally, due to need not permanent magnet is processed just can holding position, it is possible to effectively
Utilize the magnetic flux produced by permanent magnet.
Additionally, to achieve these goals, the present invention provides a kind of elevator using wheel spoke type electric motor
With thin type hoister, described wheel spoke type electric motor possesses: outside fixed support portion；Inner side movable support
Portion, it is formed at the inner side of described outside fixed support portion, and with described outside fixed support portion pair
Put；Multiple motor stators, it is arranged on movably propping up with described inner side of described outside fixed support portion
The side that bearing portion is opposed, and be equally spaced in a circumferential direction；And motor rotor, its
It is arranged in movable support portion, described inner side, and between described motor stator, is formed with air gap, and
Described circumferencial direction is alternately provided with movable piece iron core and permanent magnet, electronic at this radial
In machine, rope sheave is rotatably supported in the other end of the main shaft that one end is fixed in framework, described outside
Side fixed support portion is to be formed in the way of the extension of the opposed lateral described sheave-side of described framework, described
Movable support portion, inner side is formed in the way of extending from the opposed lateral described framework side of described rope sheave, institute
State and use the elevator thin type hoister of wheel spoke type electric motor to be characterised by, be provided with described in each
On the described circumferencial direction of the outer circumferential side end that movable piece is unshakable in one's determination, ribbon-shaped members is set, this ribbon-shaped members by
Nonmagnetic substance constitutes and has multiple window portion, by bolt by inner circumferential side unshakable in one's determination for described movable piece
Portion is fixed in movable support portion, described inner side, and by periphery side unshakable in one's determination for each described movable piece
Portion inserts and is supported on each window portion of described ribbon-shaped members respectively.
According to said structure, it is possible to by bolt, the inner peripheral side end portion that movable piece is unshakable in one's determination is fixed effectively
In movable support portion, inner side, and can be by the ribbon-shaped members of simple in construction effectively by movable piece
Outer circumferential side end unshakable in one's determination is maintained at centered by bolt on the position that skew occurs.Therefore, it is possible to structure
Become to be suitable for the small winch of the simple in construction that lift facility uses, it is possible to effectively at motor stator
And while keeping air gap between motor rotor, efficiently control the magnetic flux of permanent magnet, thus can
Enough prevent torque pulsation.
Invention effect
Wheel spoke type electric motor according to the present invention, it is possible to by bolt by inner circumferential side unshakable in one's determination for movable piece
Portion is fixed in movable support portion, inner side effectively, and can be cut by the ribbon-shaped members of simple in construction
On the spot the outer circumferential side end that movable piece is unshakable in one's determination is maintained at centered by bolt on the position that skew occurs.
Therefore, it is possible to kept gas effectively between motor stator and motor rotor by simple structure
While gap, efficiently control the magnetic flux of permanent magnet.
The elevator thin type hoister using wheel spoke type electric motor according to the present invention, it is possible to pass through bolt
The inner peripheral side end portion that movable piece is unshakable in one's determination is fixed on effectively in movable support portion, inner side, and can lead to
The outer circumferential side end that movable piece is unshakable in one's determination is maintained at bolt by ribbon-shaped members effectively that cross simple in construction
Centered by occur skew position on.It is suitable for the simple in construction that lift facility uses therefore, it is possible to constitute
Small winch, it is possible between motor stator and motor rotor, keep the same of air gap effectively
Time, efficiently control the magnetic flux of permanent magnet, it is possible to prevent torque pulsation.
Accompanying drawing explanation
Fig. 1 is the sectional view of the machine room-less elevator of the application present invention.
Fig. 2 is the side view of the elevator thin type hoister shown in Fig. 1.
Fig. 3 is the front view of the elevator thin type hoister shown in Fig. 2.
Fig. 4 is the sectional view of the elevator thin type hoister shown in Fig. 2.
Fig. 5 is the enlarged drawing of the major part of the elevator thin type hoister shown in Fig. 4.
Fig. 6 is the master being denoted as the elevator thin type hoister involved by one embodiment of the present invention
Want the enlarged front view of the wheel spoke type electric motor of part.
Fig. 7 is the top view of the ribbon-shaped members representing the elevator thin type hoister shown in Fig. 6.
Fig. 8 is the side view of the ribbon-shaped members shown in Fig. 7.
Fig. 9 is the motor representing the elevator thin type hoister involved by one embodiment of the present invention
The side view of rotor.
Description of reference numerals is as follows:
3 lift cars
6 Winch for elevator
7 frameworks
8 rope sheaves
13 main shafts
Fixed support portion outside 22
Movable support portion inside 23
24 motor stators
25 motor rotors
28 movable pieces are unshakable in one's determination
29 permanent magnets
30 bolts
31 ribbon-shaped members
34 window portions
35 position, inner circumferential side maintaining parts
36 otch
37 outer circumferential side holding plates
38 backing plates
Detailed description of the invention
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.
Fig. 1 is have employed elevator thin type hoister involved by one embodiment of the present invention inorganic
The sectional view of the liftway of tool room elevator.
Have in liftway 1 can carry out lifting along pair of guide rails 2 lift car 3, can edge
Balance weight 5 that pair of guide rails 4 carries out lifting and be arranged in liftway 1 and lift car
The elevator in the gap between 3 thin type hoister 6.At elevator with in thin type hoister 6, will fix
The framework 7 of side is arranged on lift car 3 side, will be able to arrange relative to the rope sheave 8 that this framework 7 rotates
In lifting channel wall side.Not shown main hoist cable is wound on rope sheave 8 so that at lift car 3
When rising by the rotation of rope sheave 8, balance weight 5 declines in linkage with lift car 3.Elevator is used
The explanation in aftermentioned part of the detailed construction of thin type hoister 6.
Elevator thin type hoister 6 is generally logical to be arranged in lifting in the way of liftway 1
In the gap of hundreds of about the mm between road 1 and lift car 3.Further, balance weight 5 and balance
The guide rail 4 reused is generally arranged at the horizontal side of elevator thin type hoister 6, so the slim volume of elevator
Raise machine 6 to arrange in the way of surrounding is surrounded by liftway 1, lift car 3 and balance weight 5.
If it is possible to make elevator thin type hoister 6 realize miniaturization, it becomes possible to reduce liftway
Section, it is possible to expand the configuration degree of freedom of equipment being arranged in liftway 1.
Fig. 2 and Fig. 3 is side view and the rearview of above-mentioned elevator thin type hoister 6.
Peripheral part at rope sheave 8 is combined with brake drum 9 integratedly, at this brake drum 9 by elevator car
The position of side, railway carriage or compartment 3 is provided with that framework 7, rope sheave 8 and brake drum 9 be supported to can be relative to framework
7 rotate.As describe in detail in aftermentioned part, in rope sheave 8 or brake drum 9 and framework 7
Between opposed portion constitute have motor, the rotor of this motor is arranged on the peripheral part of brake drum 9,
The rotor of this motor is arranged on the opposed portion of framework 7.Motor drives when energising with rope sheave 8 He
Brake drum 9 is that the movable part of representative rotates integrally, when power is off, by being separately positioned on framework 7
10,11 pairs of brake drums 9 of the mutually isostructural electro-magnetic braking device of top and the bottom are braked.
Fig. 4 is the sectional view of the elevator thin type hoister 6 shown in Fig. 2.
Framework 7 forms by carrying out machining after be configured to shape substantially by cast iron, central part
There is the hub portion 12 of hollow cylinder shape.The left-hand end of main shaft 13 is by being firmly embedded into hub portion
12 and by cantilever support, bearing case 15 is rotatably supported in the right side of main shaft 13 by bearing 14
Side.Rope sheave 8 is joined integrally with the peripheral part of this bearing case 15, brake drum 9 and this rope sheave 8
Peripheral part joined integrally.Its right end face of main shaft 13 and bearing 14 is by being fixed on bearing case 15
On bearing cage 16 cover.
As it has been described above, the both end sides at main shaft 13 makes the framework 7 as fixed part, as movable part
Rope sheave 8, brake drum 9 and bearing case 15 are opposed to arrange, and the movable part of the latter is relative to main shaft
13 are rotatably supported on main shaft 13.Right between the former fixed part and the movable part of the latter
Portion of putting constitutes wheel spoke type electric motor device.The concrete structure of this wheel spoke type electric motor device is in aftermentioned part
Explanation.
The cyclic lug 17 that peripheral part oriented framework 7 side joined integrally at brake drum 9 is prominent,
Being positioned on the top end face 19 than this cyclic lug 17 position in the outer part to be formed of framework 7 is passed through
Perforation 20.The electro-magnetic braking device 10 being arranged on framework 7 upper side has to be applied in framework 7
The brake pad 21 that the mode of the through hole 20 that top end face 19 is arranged is arranged, by filling in electromagnetic braking
The electromagnetic force putting 10 generations makes brake pad 21 move downward and brake pad 21 is pressed against braking
On the cyclic lug 17 of drum 9, thus rope sheave 8 and brake drum 9 are braked.It is arranged on frame
The electro-magnetic braking device 11 of the lower side of body 7 has identical structure.
Below to being arranged on above-mentioned framework 7 side as fixed part and the rope sheave 8 as movable part and system
The wheel spoke type electric motor device of the opposed portion between dynamic drum 9 side illustrates.
Fig. 5 is the enlarged drawing of the major part of Fig. 4.The ring-type of peripheral part being formed at brake drum 9 is dashed forward
The inner side going out portion 17 is formed with outside fixed support portion 22, fixed support portion 22 and framework 7 outside this
Joined integrally, prominent towards brake drum 9 direction, and have ring-type or the most divided
Shape.Inner side movable support it is formed with in the position the most in the inner part of outside fixed support portion 22
Portion 23, inside this, movable support portion 23 is joined integrally with rope sheave 8, prominent towards framework 7 side, and
And there is ring-type or the most divided shape.Outside fixed support portion 22 and inner side are movable
It is opposite disposed that support 23 separates predetermined distance, and the opposite side in outside fixed support portion 22 is constituted to be had
Motor stator 24, the opposite side in movable support portion, inner side 23 is constituted motor rotor 25.?
It is formed with air gap between motor stator 24 and motor rotor 25.
Motor stator 24 has the stator core 26 being made up of laminated electromagnetic steel plate etc. and by copper wire structure
The winding 27 become, and it is configured to the stator of three-phase alternating-current motor.On the other hand, motor turns
Son 25 is opposite disposed with motor stator 24, is formed with air gap between the two.Additionally, motor turns
Son 25 has movable piece unshakable in one's determination 28 and multiple permanent magnet, as describe in detail in aftermentioned part,
Multiple permanent magnets are arranged alternately with movable piece iron core 28 in a circumferential direction.There is said structure
Wheel spoke type electric motor device is arranged on the inner side of motor stator 24 because of motor rotor 25, so
It is referred to as inner-rotor type motor.
Fig. 6 is that the part of the motor stator 24 shown in Fig. 5 and motor rotor 25 (is namely taken turns
Spoke motor) enlarged front view.
Motor stator 24 is made up of multiple unit being referred to as teeth portion (teeth), and these unit multiple lead to
Cross and the winding 27 being made up of copper wire is wound in by stacking polylith electromagnetic steel in the axial direction of main shaft 13
Plate and the stator core 26 that constitutes and constitute.It is to say, multiple teeth portion are at the center from main shaft 13
The radial alignment extended radially substantially arrives the position of the inner peripheral surface of outside fixed support portion 22
Circumferencial direction along the inner surface of outside fixed support portion 22 is equally spaced, and solid respectively
It is scheduled in the fixed support portion 22 of outside.Additionally, each teeth portion with its length direction substantially with above-mentioned in
The mode of the radial alignment alignment of radiated entends is arranged.Figure 6 illustrates and wind in a centralised manner
Winding 27, but winding 27 can also be distributed volume around winding.
On the other hand, motor rotor 25 is by being arranged alternately permanent magnet 29 He in a circumferential direction
The movable piece of stacking polylith laminated electromagnetic steel plate etc. unshakable in one's determination 28 in the axial direction of main shaft 13 and structure
Become.The radial alignment that movable piece iron core 28 extends radially at the center from main shaft 13 substantially arrives
The position of the outer peripheral face in movable support portion 23, inner side is along the outer surface in movable support portion, inner side 23
Circumferencial direction is arranged with roughly equal interval, and it is movable to be separately fixed at inner side by bolt 30
On support 23.Additionally, each movable piece iron core 28 with its length direction substantially with above-mentioned in radiation
The mode of the radially extending aligned of shape is arranged.Each permanent magnet 29 is to be clipped in circumferentially side
Mode between adjacent movable piece iron core 28 is arranged.By said method, with each movable piece
As unshakable in one's determination 28, the multiple permanent magnets 29 being equally spaced at circumferencial direction are configured to N pole
It is arranged alternately in a circumferential direction with S pole.
Each movable piece unshakable in one's determination 28 uses and is formed at the bolt hole of its internal side diameter and is fixed on by bolt 30
In movable support portion 23, inner side.Assembling operation and raising dimensional accuracy, be preferably provided with for convenience
The bolt hole becoming each movable piece iron core 28 is more bigger than the outside dimension of the screw portion of bolt 30, also
That is the relation being preferably formed as between fraising and reamer axle.Additionally, each movable piece iron core 28
Bolt hole is arranged at two the most diametrically, and use two bolts 30 be separately fixed at inner side can
On dynamic support 23.
By the magnetic flux of permanent magnet 29 by 28 magnetization unshakable in one's determination for movable piece so that with motor stator
The outer circumferential side end of 24 opposed movable piece iron cores 28, N pole and S pole are alternately arranged in a circumferential direction
Row.Therefore, movable piece unshakable in one's determination 28 uses magnetic material to make.In order to reduce vortex flow loss and magnetic
The iron loss such as stagnant loss, are preferably used laminated electromagnetic steel plate or dust core etc..
Fig. 7 and Fig. 8 is to represent for supporting movable piece unshakable in one's determination 28 and the periphery of permanent magnet 29 respectively
The top view of the ribbon-shaped members 31 of side end and side view.
The ribbon-shaped members 31 being made up of nonmagnetic substance is formed the strip that thickness is about 2mm
Shape, is formed with convex linking part 32 and concavity linking part 33 in its length direction end.Additionally,
In ribbon-shaped members 31, the interval alongst separating regulation is formed with multiple window portion 34.Each
Window portion 34 interval and each movable piece iron core 28 above-mentioned outer circumferential side end in a circumferential direction between
Every identical.Further, the shape in each window portion 34 is configured to for each movable piece iron core 28
Outer circumferential side end is inserted, and the periphery side of each movable piece iron core 28 after can remaining inserted into
Portion.
Ribbon-shaped members 31 has the length of regulation, and having specifically can be at all of movable piece
After 28 heads unshakable in one's determination insert in each window portion 34, at circumferencial direction around a circle by convex linking part
The length linked is carried out in 32 embedding concavity linking parts 33.Here, owing to ribbon-shaped members 31 is thin and firm
Property low, so there is no need to be pre-formed into circle, only need the periphery of movable piece iron core 28
Side end inserts the window portion 34 of ribbon-shaped members 31 one by one while bending to circle.Due to band
Shape component 31 uses strap-like objects, and rounds and link, thus with in advance by entirety shape
The situation becoming ring-type is compared, and making property is excellent, and can improve workability.
Ribbon-shaped members 31 can use the component being divided into some the most in a circumferential direction.This
Time, convex linking part 32 and concavity linking part 33 it is pre-formed at the two ends of each partitioning portion, logical
Cross make the convex linking part 32 of each partitioning portion adjoined and concavity linking part 33 be engaged with each other into
Joining line, makes to be integrally formed into ring-type after link.Whichsoever situation, adjacent in order to reduce
The vortex flow loss that the short circuit of the magnetic flux between movable piece iron core 28 and ribbon-shaped members 31 self produce
With iron loss such as magnetic hystersis losses, it is preferred to use nonmagnetic substance forms ribbon-shaped members 31.
As shown in Figure 6, the inner peripheral side end portion of each movable piece iron core 28 is fixed respectively by bolt 30
In movable support portion, inner side 23, thus the most immovable radially and circumferentially going up.Further,
The outer circumferential side end of each movable piece iron core 28 is prevented at circumferencial direction by supporting structure described later
On be moved, so simultaneously its radially moving at permanent magnet 29 can also be prevented.
Vicinity shape respectively at the fixed part of each movable piece iron core 28 using bolt 30 to be fixed
Become to have and highlight the interior of (highlighting the most in a circumferential direction) towards adjacent movable piece 28 sides unshakable in one's determination
All side position maintaining parts 35.Setting is inserted in the way of being clipped between adjacent movable piece iron core 28
Each permanent magnet 29, by making its inner peripheral side end portion contact with position, inner circumferential side maintaining part 35 certainly
Determine the position of direction of insertion.
Above-mentioned ribbon-shaped members 31 is used to be inserted respectively respectively the outer circumferential side end of each movable piece iron core 28
In individual window portion 34, hereafter, make the convex linking part 32 of ribbon-shaped members 31 and concavity linking part 33 that
This engagement, thus links the outer circumferential side end of each movable piece iron core 28.Now, it is positioned at each
The outer circumference side edge face of each permanent magnet 29 between the outer circumferential side end of movable piece iron core 28 and banding structure
The inner circumferential side end contact of part 31, thus limits the outer circumference side edge face position of each permanent magnet 29.
It addition, be in each movable piece iron core 28 of the state that is provided with above-mentioned ribbon-shaped members 31
Outer circumferential side end, is respectively formed with otch 36 in the position consistent with the outer surface of ribbon-shaped members 31.
After ribbon-shaped members 31 is arranged, outer circumferential side holding plate 37 is respectively embedded into be positioned at adjacent each can
In each otch 36 of the opposite side of moving part iron core 28.
It is provided with in the same way between all of movable piece iron core 28 adjacent in a circumferential direction
Outer circumferential side holding plate 37, the quantity of outer circumferential side holding plate 37 is identical with the quantity of movable piece iron core 28.
Otch 36 size diametrically is identical or smaller with the gauge of outer circumferential side holding plate 37.By
This, after being fixed by embedding, do not have loosening.Each outer circumferential side holding plate 37 is with each
As ribbon-shaped members 31, in order to reduce the short circuit of adjacent movable piece iron core 28 magnetic flux each other
And the iron loss such as the vortex flow loss of outer circumferential side holding plate 37 self generation and magnetic hystersis loss, preferably adopt
Formed with nonmagnetic substance.
After each outer circumferential side holding plate 37 is respectively embedded into each otch 36, the medial surface of each otch 36
Contact with the circumferential lateral surface of ribbon-shaped members 31, and the inner circumferential side of ribbon-shaped members 31 is permanent with each
The outer circumference side edge face contact of Magnet 29.Now, by ribbon-shaped members 31 and each outer circumferential side holding plate
Each movable piece iron core 28 is fixed by 37 the most securely, simultaneously at circumferencial direction
Securely each permanent magnet 29 is fixed with radial direction.
So, circumferentially it is equally spaced many in the inner side of outside fixed support portion 22
Individual teeth portion is multiple with what the periphery in movable support portion, inner side 23 was circumferentially equally spaced
Movable piece iron core 28 is opposed across air gap respectively, thus constitutes permanent-magnet synchronous electric motor.
, in order to prevent the torque pulsation produced not because of dimensional accuracy, movable piece iron core 28
The positioning precision of outer circumferential side end be even more important, in the position of the outer circumferential side end of movable piece iron core 28
Putting relative to ideal position when radially or there occurs skew on circumferencial direction, torque arteries and veins can be produced
Dynamic.
Owing to movable piece unshakable in one's determination 28 is shaped by accurate sheet metal etc., so movable piece unshakable in one's determination 28 self
Dimensional accuracy is high, and problem is the assembly precision of movable piece iron core 28.Diametrically, by with fraising
The inner peripheral side end portion of movable piece iron core 28 is fixed by bolt 30, it is possible to carry out accurately
Location.On the other hand, in a circumferential direction, owing to there is gap between fraising and screw rod, so can
Moving part iron core 28 can rotate on the basis of the position of fitting bolt 30, thus causes movable piece
The positional precision of unshakable in one's determination 28 is deteriorated.
By being sized to the bolt hole of the inner peripheral side end portion of movable piece iron core 28 less than fraising
The size of the threaded shank of bolt 30, and gap is set as less than 0, it is possible to prevent movably
Part iron core 28 moves at circumferencial direction., all have due to movable piece unshakable in one's determination 28 and bolt 30
High rigidity, so being not easy in fitting bolt 30 stud bolt hole.Additionally, due to movable piece ferrum
The heart 28 is laminated by the electromagnetic steel plate etc. of 0.2～about 0.5mm, if so by force by high rigidity
Fitting bolt 30 stud bolt hole, may result in movable piece iron core 28 and sustain damage.
On the other hand, use the ribbon-shaped members 31 shown in Fig. 7 and Fig. 8, each movable piece is unshakable in one's determination
Insert each window portion 34 of ribbon-shaped members 31 for the outer circumferential side end of 28, and be fixed into and make ribbon-shaped members 31
Inner circumferential side contact with the outer circumference side edge face of permanent magnet 29.To this end, group can be carried out easily
Dress, it is possible to the outer circumferential side end of movable piece iron core 28 is carried out high-precision location in circumference, so
When using elevator thin type hoister, it is also possible to prevent above-mentioned pulsation.
The quantity that preferably will be formed in the window portion 34 in ribbon-shaped members 31 is arranged to and movable piece iron core 28
Quantity identical, and make the size in window portion 34 identical with the section size of movable piece iron core 28 or
Smaller so that not have loosening.Furthermore it is preferred that as movable piece iron core 28, by precision
Sheet metal or Laser Processing etc. carry out high accuracy and process the window portion 34 of ribbon-shaped members 31.As it has been described above,
By using ribbon-shaped members 31 to fix each movable piece iron core 28, it is possible in a circumferential direction to can
The outer circumferential side end of moving part iron core 28 carries out high-precision location.
Fig. 9 is the elevator thin type hoister involved by other embodiments main representing the present invention
The sectional view of part, is the enlarged drawing of motor rotor 25 shown in Fig. 5.
It is fixed on the motor rotor 25 of protuberance 23 by bolt 30 to have and replace at circumferencial direction
The movable piece arranged unshakable in one's determination 28 and permanent magnet 29, figure 9 illustrates permanent magnet 29 and be arranged on
The situation during front-surface side of movable piece iron core 28.As it has been described above, the outer circumferential side of movable piece iron core 28
End is inserted into the window portion 34 of ribbon-shaped members 31.It addition, in the outer circumferential side end of movable piece iron core 28,
The position consistent with the circumferential lateral surface of ribbon-shaped members 31 is formed not shown otch 36, will
Outer circumferential side holding plate 37 inserts in this otch 36, by this outer circumferential side holding plate 37 to ribbon-shaped members
31 keep so that it will not come off from the outer circumferential side end of movable piece iron core 28.
According to said structure, it is possible to stop movable piece unshakable in one's determination 28 and permanent magnet 29 (the most just
The above-below direction in figure) or circumferencial direction on move, it is possible to will and motor stator 24 between
Air gap be maintained under preferable state.
Further, in the present embodiment, by bolt 30, motor rotor 25 is being fixed on prominent
Time in portion 23, in movable piece unshakable in one's determination 28 and axial (the namely left and right in figure of permanent magnet 29
Direction) it is respectively provided with backing plate 38, and fastened integratedly by bolt 30.Backing plate 38 can set
It is set to circumferentially continuous ring-type, it is also possible to be divided into some in a circumferential direction.
According to said structure, it is possible to use the bolt 30 installing motor rotor 25 fixes backing plate
38, by this backing plate 38, it is possible to be prevented securely from permanent magnet 29 axially (namely in figure
Left and right directions) move or come off.
It should be noted that in the above-described embodiment, in the inner peripheral side end portion of movable piece iron core 28
It is provided with position, the inner circumferential side maintaining part 35 of the position of the inner peripheral side end portion limiting permanent magnet 29.Separately
On the one hand, it is also possible to be arranged on above-mentioned backing plate 38 and be integrally formed and the inner circumferential side of permanent magnet 29
Position, the inner circumferential side maintaining part 35 that end (the namely end of the lower side in figure) contacts, by this
Position, inner circumferential side maintaining part 35 limits the position of the inner peripheral side end portion of permanent magnet 29.Now, may be used
To omit position, the inner circumferential side maintaining part 35 shown in Fig. 6.
Being illustrated elevator thin type hoister in the above-described embodiment, it can also be as wheel
Spoke motor uses, and this wheel spoke type electric motor has: outside fixed support portion 22；Movable of inner side
Bearing portion 23, its formation opposed with outside fixed support portion 22；Multiple motor stators 24, it is installed
In the side opposed with movable support portion 23, inner side of outside fixed support portion 22, and in circumference side
Upwards it is equally spaced；And motor rotor 25, its be arranged on inner side movable support portion 23 on,
And it is formed with air gap between motor stator 24, and has been alternately arranged movable in a circumferential direction
Part unshakable in one's determination 28 and permanent magnet 29.
As it has been described above, the wheel spoke type electric motor of the present invention is characterised by having: outside fixed bearing
Portion 22；Inner side movable support portion 23, its be formed at outside fixed support portion 22 inner side, and with
Outside fixed support portion 22 is opposed；Multiple motor stators 24, it is arranged on outside fixed support portion
The side opposed with movable support portion 23, inner side of 22, and be equally spaced in a circumferential direction；
And motor rotor 25, it is arranged on inner side between movable support portion 23, and motor stator 24
It is formed with air gap, and is alternately arranged movable piece unshakable in one's determination 28 and permanent magnet in a circumferential direction
29, this circumferencial direction of outer circumferential side end being provided with each movable piece iron core 28 is arranged and has
The ribbon-shaped members 31 being made up of nonmagnetic substance in multiple window portions 34, by bolt 30 by movable piece ferrum
The inner peripheral side end portion of the heart 28 is fixed in movable support portion 23, inner side, and each movable piece is unshakable in one's determination
The outer circumferential side end of 28 is inserted respectively and is supported in each window portion 34 of ribbon-shaped members 31.
According to said structure, it is possible to by bolt 30 by practical for the inner peripheral side end portion of movable piece iron core 28
Be fixed in movable support portion 23, inner side, and can will by the ribbon-shaped members 31 of simple in construction
The outer circumferential side end of movable piece iron core 28 is maintained at centered by bolt 30 on the position that skew occurs.
Therefore, it is possible to by simple structure effectively between motor stator 24 and motor rotor 25
While keeping air gap, efficiently control the magnetic flux of permanent magnet 29.
Than the above described structure, inventive feature also resides in, and is being positioned at and ribbon-shaped members 31
The outer circumferential side end of each movable piece iron core 28 of the position that circumferential lateral surface is corresponding forms otch respectively
36, the outer circumferential side holding plate 37 being made up of nonmagnetic substance is fixed on each adjacent movable piece ferrum
Between the otch 36 of the heart 28, keep permanent magnetic by outer circumferential side holding plate 37 and ribbon-shaped members 31
The position of ferrum 29.
Can be by thin plate structure simply according to said structure, outer circumferential side holding plate 37 and ribbon-shaped members 31
Become, and each movable piece unshakable in one's determination 28 and permanent magnetic can be kept effectively by this simple structure
The outer circumferential side end of ferrum 29 so that it will not move at circumferencial direction with radially.
It addition, the present invention is on the basis of said structure, it is further characterized in that, is being positioned at bolt 30
The inner peripheral side end portion of neighbouring movable piece iron core 28 is provided with the inner peripheral side end portion limiting permanent magnet 29
Position, the inner circumferential side maintaining part 35 of position.
According to said structure, it is possible to effectively utilize outer circumferential side end simple of permanent magnet 29
Supporting structure, limits the inner circumferential side of permanent magnet 29 easily by position, inner circumferential side maintaining part 35
The position in portion.Additionally, due to need not permanent magnet is processed just can holding position, so
The magnetic flux produced by permanent magnet can be effectively utilized.
Additionally, the present invention provides a kind of elevator thin type hoister using wheel spoke type electric motor, this is taken turns
Spoke motor is constructed having: outside fixed support portion 22；Movable support portion, inner side, it is formed
In the inner side of outside fixed support portion 22 and opposed with outside fixed support portion 22；Multiple electronic
Machine stator 24, it is arranged on opposed with movable support portion 23, inner side of outside fixed support portion 22
Side, and be equally spaced in a circumferential direction；And motor rotor 25, it is arranged on inner side
It is formed with air gap between movable support portion 23, and motor stator 24, and circumferentially hands over
Alternately it is provided with movable piece unshakable in one's determination 28 and permanent magnet 29, in this wheel spoke type electric motor, by rope sheave
8 other ends being rotatably supported in the main shaft 13 that one end is fixed in framework 7, outside fixed bearing
Portion 22 is formed in the way of extending towards rope sheave 8 side from the opposite side of framework 7, inner side movable support
Portion 23 is formed in the way of extending towards framework 7 side from the opposite side of rope sheave 8, this use radial
The elevator thin type hoister of motor is characterised by, is being provided with each movable piece iron core 28
The band being made up of nonmagnetic substance with multiple window portion 34 is set on the circumferencial direction of outer circumferential side end
Shape component 31, is fixed on inner side by bolt 30 by the inner peripheral side end portion of movable piece iron core 28 and movably props up
In bearing portion 23, and the outer circumferential side end of each movable piece iron core 28 is inserted respectively and is supported on band
In each window portion 34 of shape component 31.
In lift facility, the rotary pulse (namely torque pulsation) of rope sheave 8 is to cause suspention electricity
The cable of ladder car is in the one of the main reasons of above-below direction violent oscillatory motion, it is therefore necessary to suppression should
Rotary pulse.The reason causing motor generation torque pulsation has a lot, suppresses such torque pulsation
One of method is to improve the installation accuracy of motor rotor 25, at motor rotor 25 and motor stator
Suitable air gap is kept between son 24.According to said structure, it is possible to by bolt 30 by movable piece ferrum
The inner peripheral side end portion of the heart 28 is fixed in movable support portion 23, inner side effectively, and can be by knot
The outer circumferential side end of movable piece iron core 28 is maintained at bolt by the simple ribbon-shaped members of structure 31 effectively
Occur centered by 30 on the position of skew.It is suitable for the structure letter that lift facility uses therefore, it is possible to constitute
Single small winch, it is possible to keep between motor stator 24 and motor rotor 25 effectively
While air gap, efficiently control the magnetic flux of permanent magnet 29.
Claims (4)
1. a wheel spoke type electric motor, it possesses: outside fixed support portion；Movable support portion, inner side,
It is formed at the inner side of described outside fixed support portion, and opposed with described outside fixed support portion；
Multiple motor stators, its be arranged on described outside fixed support portion with movable support portion, described inner side
Opposed side, and be equally spaced in a circumferential direction；And motor rotor, it is installed
In movable support portion, described inner side, and between described motor stator, it is formed with air gap, and in institute
State and on circumferencial direction, be alternately provided with movable piece iron core and permanent magnet,
Described wheel spoke type electric motor is characterised by,
The described circumferencial direction being provided with each described movable piece outer circumferential side end unshakable in one's determination is arranged
Ribbon-shaped members, this ribbon-shaped members is made up of nonmagnetic substance and has multiple window portion, by bolt by institute
The inner peripheral side end portion stating movable piece unshakable in one's determination is fixed in movable support portion, described inner side, and by each institute
State movable piece outer circumferential side end unshakable in one's determination and insert and be supported on each window portion of described ribbon-shaped members respectively.
2. wheel spoke type electric motor as claimed in claim 1, it is characterised in that
It is being positioned at each described movable piece ferrum of the position corresponding with the circumferential lateral surface of described ribbon-shaped members
Otch is formed respectively, by solid for the outer circumferential side holding plate being made up of nonmagnetic substance on the outer circumferential side end of the heart
It is scheduled between the described otch that each adjacent described movable piece is unshakable in one's determination, by described outer circumferential side holding plate
With the position that described ribbon-shaped members keeps described permanent magnet.
3. wheel spoke type electric motor as claimed in claim 1 or 2, it is characterised in that
The be positioned at inner peripheral side end portion described bolt near unshakable in one's determination at described movable piece is provided with inner circumferential
Side position maintaining part, this position, inner circumferential side maintaining part is for limiting the inner peripheral side end portion of described permanent magnet
Position.
4. use an elevator thin type hoister for wheel spoke type electric motor, described wheel spoke type electric motor
Possess: outside fixed support portion；Movable support portion, inner side, it is formed at described outside fixed support portion
Inner side, and opposed with described outside fixed support portion；Multiple motor stators, it is arranged on institute
State the side opposed with movable support portion, described inner side of outside fixed support portion, and at circumferencial direction
On be equally spaced；And motor rotor, it is arranged in movable support portion, described inner side, with
It is formed with air gap between described motor stator, and be alternately provided with on described circumferencial direction can
Moving part iron core and permanent magnet, in described wheel spoke type electric motor, be rotatably supported in one by rope sheave
The other end of main shaft that end is fixed in framework, right with from described framework of described outside fixed support portion
The mode putting the extension of lateral described sheave-side is formed, and movable support portion, described inner side is with from described rope sheave
The mode that opposed lateral described framework side extends is formed,
The elevator thin type hoister of described use wheel spoke type electric motor is characterised by,
The described circumferencial direction being provided with each described movable piece outer circumferential side end unshakable in one's determination is arranged
Ribbon-shaped members, this ribbon-shaped members is made up of nonmagnetic substance and has multiple window portion, by bolt by institute
The inner peripheral side end portion stating movable piece unshakable in one's determination is fixed in movable support portion, described inner side, and by each institute
State movable piece outer circumferential side end unshakable in one's determination and insert and be supported on each window portion of described ribbon-shaped members respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-148560 | 2013-07-17 | ||
| JP2013148560A JP2015023625A (en) | 2013-07-17 | 2013-07-17 | Spoke type motor and elevator hoist using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300711A CN104300711A (en) | 2015-01-21 |
| CN104300711B true CN104300711B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410333600.XA Active CN104300711B (en) | 2013-07-17 | 2014-07-14 | Wheel spoke type electric motor and the Winch for elevator of use wheel spoke type electric motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015023625A (en) |
| CN (1) | CN104300711B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787650B (en) * | 2015-04-27 | 2017-09-22 | 苏州德奥电梯有限公司 | A kind of traction machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091668A (en) * | 1989-12-08 | 1992-02-25 | Gec Alsthom Sa | Motor having flux-concentrating permanent magnets |
| CN102916510A (en) * | 2011-08-02 | 2013-02-06 | 株式会社安川电机 | Rotary motor |
-
2013
- 2013-07-17 JP JP2013148560A patent/JP2015023625A/en active Pending
-
2014
- 2014-07-14 CN CN201410333600.XA patent/CN104300711B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091668A (en) * | 1989-12-08 | 1992-02-25 | Gec Alsthom Sa | Motor having flux-concentrating permanent magnets |
| CN102916510A (en) * | 2011-08-02 | 2013-02-06 | 株式会社安川电机 | Rotary motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104300711A (en) | 2015-01-21 |
| JP2015023625A (en) | 2015-02-02 |
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