CN105186743B - A kind of method for the rotor mechanism for making magneto - Google Patents
A kind of method for the rotor mechanism for making magneto Download PDFInfo
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- CN105186743B CN105186743B CN201510573567.2A CN201510573567A CN105186743B CN 105186743 B CN105186743 B CN 105186743B CN 201510573567 A CN201510573567 A CN 201510573567A CN 105186743 B CN105186743 B CN 105186743B
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Abstract
The invention discloses a kind of rotor mechanism of magneto and preparation method thereof, the rotor mechanism includes rotating shaft, rotor field spider, rotor core, pole end piece pressing plate, core ends pressing plate, permanent magnet, permanent magnet sheath, end baffle, sheath press strip, wherein rotor field spider is set in rotating shaft, rotor core suit is fixed on rotor field spider, end baffle is individually fixed in the both ends of rotor field spider axial direction with core ends pressing plate, the outer wall circumference uniform intervals of rotor core are provided with the groove along the axial direction of rotor field spider, sheath press strip is arranged at the gap between the groove of rotor field spider outer wall, permanent magnet sheath is fixed on sheath press strip, and the space of insertion installation permanent magnet is formed between permanent magnet sheath and groove, one end that core ends pressing plate is installed on rotor field spider is fixed with pole end piece pressing plate.According to the present invention, assembly technology is simple, magnet steel installation robust, reduces the leakage field between magnet steel and reduces eddy-current loss, adapt to the circumferentially-spaced small application of the more magnet steel of number of poles.
Description
Technical field
The invention belongs to permanent magnet field, more particularly, to a kind of rotor mechanism of magneto.
Background technology
Magneto has the shape and size of simple in construction, small volume, light weight, efficiency high and motor can be flexibly more
The remarkable advantages such as sample.Thus application is extremely wide, almost throughout Aero-Space, national defence, industrial and agricultural production and daily life
Every field.But in magneto running, motor permanent magnet is often subject to vibrate and impacted, force environment is complicated to dislike
It is bad, if permanent magnet fixation is undesirable, it will be loosened in running environment complicated and changeable, cause failure and the damage of magneto
It is bad.Therefore to the reasonable reliable fixed reliability and durability for being directly connected to magneto of permanent magnet in magneto.
The fixed form that the permanent magnet of surface-mounted permanent magnet machine is in daily use is to be bonded in permanent magnet using bonded structural adhesive
On rotor surface, every block of magnet steel must all be pressed on rotor surface, untill bonding is firm.
The shortcomings that technology, mainly has：1) in bonding process, because the density of bonded structural adhesive is big, poor fluidity, glue
Permanent magnet can not be generally filled into in the gap of supporting construction steel, causing permanent magnet fixation not firm by connecing structure glue, directly be led
Send a telegraph machine easily to vibrate in the process of running, cause permanent magnet to come off；2) in order to increase the circle of permanent magnet and structural steel
The area that inner surface is brought into close contact, the side surface of permanent magnet one are also required to design in the arc-shaped so that permanent magnet processed complex, increase
Cost；3) cost of bonded structural adhesive is higher, causes the manufacturing cost of magneto high；4) the equipment rate of bonding is not high, leads
The low production efficiency of magneto is caused, particularly to large-scale direct-drive permanent magnet wind power generator, because motor size is big, is resulted in the need for
The equipment of specific manufacture is completed to be bonded, and modularized production efficiency is low, and cost is high.
Patent CN200520045576.6 utility model patents disclose a kind of Ru-Fe-Mn applied on wind-driven generator
P-m rotor, the patent are correspondingly provided with fixing hole using being provided with mounting hole among magnet in rotor surface, by screw by magnetic
Body is fixed on rotor surface, while in order to strengthen permanent magnet fixing intensity, is also provided with protective layer in the outer surface of permanent magnet.The skill
Although art solves viscose glue and is bonded illusive problem, it is not required that particular device, strong adaptability, can cover all Surface Mounts
The permanent magnet fixed range of formula magneto, but have the following disadvantages：1) in order to increase fitting area, permanent magnet side also needs
The circular arc being adapted with the circular surface of supporting construction is processed into, processed complex, additionally increases cost；2) permanent magnet machinery
Characteristic is to be unlikely to deform but be hit to be easily damaged, and fixing hole is opened among permanent magnet, and the stress concentration that can increase permanent magnet is special
Property so that in the process of running, due to vibrating and impacting, the non-plastic fracture for easily causing permanent magnet comes off motor, greatly shortens
The service life of magneto, limits use occasion, can not run use in the presence of a harsh environment.
The A of patent CN 102315710 technical scheme is to be uniformly provided with pole shoe on rotor drum surface, utilizes pole shoe and installation
The permanent magnet installing space that is formed between the insulating barrier on rotor drum surface installs permanent magnet.This scheme mainly has lack at 2 points
Point：First, pole shoe shape is special, it is necessary to occupy larger space, it is not suitable for circumferentially-spaced small occasion between magnetic pole；Second, turn
The loss of auxiliary cylinder surface eddy is larger, is not suitable for high frequency magneto.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of rotor mechanism of magneto,
It is simple its object is to provide a kind of assembly technology, magnet steel installation robust, without the rotor mechanism of special frock, and solve
The technical problem that leakage field certainly between magnet steel is big, eddy-current loss is big, it is more to be particular enable to be adapted to the series of permanent magnet installation, and between
Circumferentially-spaced small application.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of rotor mechanism of magneto, it is special
Sign is, the rotor mechanism include rotating shaft, rotor field spider, rotor core, pole end piece pressing plate, core ends pressing plate, permanent magnet,
Permanent magnet sheath, end baffle, sheath press strip, wherein rotor field spider are set in rotating shaft, and rotor core suit is fixed on described
On rotor field spider, end baffle is individually fixed in the axial both ends of the rotor field spider with core ends pressing plate, for fixing
The rotor core；
The outer wall circumference uniform intervals of the rotor core are provided with the groove of the axial direction along the rotor field spider；
Sheath press strip is arranged at the gap between the groove on the rotor field spider outer wall, and permanent magnet sheath is fixed on institute
State on sheath press strip, and the space of insertion installation permanent magnet is formed between the permanent magnet sheath and the groove；
One end that core ends pressing plate is provided with the rotor field spider is further fixed on pole end piece pressing plate, for fixed real
Axial restraint after the existing permanent magnet insertion installation.
Further, slot is provided with the rotor core inwall, for being installed on consolidating on the rotor field spider
Bar engaging is determined so as to realize the fixation of the rotor core.
Further, the rotor core is folded block by the iron core of circular ring type and is overrided to form.
Further, through hole is provided with the rotor core, is also provided with the permanent magnet sheath and the sheath press strip
Corresponding through hole, being fixed for the permanent magnet is realized so as to be fixed on by screw on the rotor field spider.
Further, the through hole on the rotor core is to fold punching after the completion of block laminates by the iron core to be formed.
Further, the through hole on the rotor core be by it is circumferentially distributed and between leave the block iron of via clearance
Core lamination is folded block with the iron core and laminated so as to formation.
Still further aspect, the invention also discloses a kind of method for the rotor mechanism for making magneto, it is characterised in that
This method comprises the following steps：
(a) rotor field spider of cylinder is sleeved in rotating shaft, and circumferential uniform point in the appearance wall of the rotor field spider
Fix fixed strip vertically cloth；
(b) in vertically end face upper fixing end portion baffle plate of the rotor field spider, rotor core will be laminated into
Annulus shaped iron core is folded block block-by-block and is inserted on the rotor field spider, and fixation is realized by engaging with the fixed strip, and described
Rotor field spider fixes secured core end pressing plate on another axial end of the end baffle, so as to the end baffle and institute
State core ends pressing plate and limit the rotor core in the axial direction；
(c) the outer wall circumference uniform intervals of the rotor core after the completion of being laminated described in are formed with the axle along the rotor field spider
To the groove in direction, for installing permanent magnet, the gap that sheath press strip is filled between the groove on the rotor field spider outer wall will
Permanent magnet sheath is fixed on the sheath press strip, and the installation that the permanent magnet is formed between the permanent magnet sheath and groove is empty
Between；
(d) permanent magnet is inserted in the installing space for forming the permanent magnet between the permanent magnet sheath and groove,
The permanent magnet sheath be further fixed and clamped so as to lock the permanent magnet, core ends pressing plate is installed on rotor field spider
One end fixed magnetic pole end pressing plate, for the fixed axial restraint realized after the permanent magnet insertion installation, be consequently formed institute
State rotor mechanism.
In general, by the contemplated above technical scheme of the present invention compared with prior art, as a result of iron core
Slot fixed permanent magnet, the series that can adapt in permanent magnet installation is more, and between in circumferentially-spaced small rotor mechanism should
With.
Brief description of the drawings
Fig. 1 is the motor rotor construction schematic diagram according to the permanent magnet machine of the present invention；
Fig. 2 (a) is the A end views according to the rotor field spider of the permanent magnet machine of the present invention；
Fig. 2 (b) is the B end views according to the rotor field spider of the permanent magnet machine of the present invention；
Fig. 3 is the schematic diagram according to the wedge-shaped fixed strip of the permanent magnet machine of the present invention；
Fig. 4 is the schematic diagram according to the end baffle of the permanent magnet machine of the present invention；
Fig. 5 (a) is the overall cross section according to the rotor core 3 of the permanent magnet machine of the present invention；
Fig. 5 (b) is the blown-up partial detail according to the rotor core 3 of the permanent magnet machine of the present invention；
Fig. 5 (c) is the schematic three dimensional views according to the rotor core 3 of the permanent magnet machine of the present invention；
Fig. 5 (d) is the through hole schematic diagram unshakable in one's determination according to the rotor core 3 of the permanent magnet machine of the present invention；
Fig. 6 (a) is the schematic diagram according to the permanent magnet sheath of the permanent magnet machine of the present invention；
Fig. 6 (b) is the schematic diagram being arranged on according to the sheath of the permanent magnet machine of the present invention on permanent magnet；
Fig. 6 (c) is the partial schematic diagram installed according to the adjacent permanent magnet sheath of the permanent magnet machine of the present invention.
In all of the figs, identical reference is used for representing identical element or structure, wherein：
1-rotating shaft, 2-rotor field spider, 3-rotor core, 4-pole end piece pressing plate 5-core ends pressing plate；6-forever
Magnet；7-permanent magnet sheath；8-wedge-shaped fixed strip；9-end baffle；10-sheath press strip 11- annulus shaped iron core folds block
12- core lamination stacks
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
The schematic diagram of permanent magnet machine rotor mechanism involved in the present invention is as shown in figure 1, wherein in order to show wedge-shaped fixation
Bar 8, end baffle 9 and permanent magnet 6, rotor core 3, core ends pressing plate 5 and pole end piece pressing plate 4 illustrate only a part,
The structure mainly includes with lower part：Rotor field spider 2 is sleeved in rotating shaft 1, is connected into an entirety with rotor field spider 2, is used for
Transmit the torque of motor；2 two end faces of rotor field spider are uniformly provided with screwed hole, and end baffle 9 can be fixed on by screw to be turned
One end of submounts 2；Wedge-shaped fixed strip 8 is circumferentially uniformly fixed on the surface of rotor field spider 2, and rotor core laminations inwall is provided with
The notch being adapted with wedge-shaped fixed strip 8 so that lamination, which is gradually inserted into wedge-shaped fixed strip 8, to be engaged, and realizes rotor core 3
It is radially fixed, after the completion of laminating, in the other end of rotor field spider 2 by the uniform secured core end pressing plate 5 of screw, to rotor iron
Core carries out axial restraint；The circumferential surface of rotor field spider 2 is circumferentially uniformly provided with screwed hole, rotor core 3 with the spiral shell of rotor field spider 2
Pit relevant position is also equipped with adaptable through hole, and same permanent magnet sheath 7 and sheath press strip 10 are also provided with corresponding place
Through hole, sheath press strip 10 and permanent magnet sheath 7 can be fixed on by screw on rotor field spider together, install rear permanent magnetism
The space of installation permanent magnet is formed between body sheath 7 and rotor core 3, is entered by the passage close to the one end of core ends pressing plate 5
Mouthful, the permanent magnet after piecemeal is gradually inserted into the mounting hole between permanent magnet sheath 7 and rotor core 3, in each pole
After permanent magnet inserts, pole end piece pressing plate 4 and rotor field spider 2 are being passed through into screw close to one end of core ends pressing plate 5
Fixation is locked, and such permanent magnet is reliably arranged on rotor core 3.
1) rotor field spider
Rotor field spider 2 is the main support structure of rotor, and for magneto, permanent magnet is required to firmly fix
On rotor field spider, in order to meticulously illustrate rotor field spider, illustrate the A end faces of rotor field spider and B with Fig. 2 a and Fig. 2 b respectively
End face：Rotor field spider circumferential surface has circumferentially been evenly arranged screwed hole, and wherein screwed hole 12 and screwed hole 14 is used for fixed wedge
Shape fixed strip 8, screwed hole 11 and screwed hole 13 are used for fixed permanent magnet sheath 7；A end faces are circumferentially evenly arranged screwed hole 18,
For anchor portion baffle plate 9；Every three screwed holes in B end faces are a unit and evenly distributed in the circumferential direction, the spiral shell in unit
Pit 15 is used for secured core end pressing plate, and screwed hole 16 is used for fixed magnetic pole end pressing plate 4.
2) wedge-shaped fixed strip
The wedge-shaped cross sectional shape of fixed strip 8 is wedge shape, can be that shape, its function such as T-shaped, trapezoidal and swallow-tail form are main
Have：First, for the positioning when rotor core scene laminates, second, radially fixed firmly rotor core.Its schematic diagram such as Fig. 3 institutes
Show：Hole 19 and hole 21 are counter sink, according to different sunk screw specifications, could be arranged to flat head screw counter sink or interior six
Angle counter sink, by the screwed hole 12 and screwed hole 14 on the two counter sinks and rotor field spider, corresponding countersunk head can be used
Wedge-shaped fixed strip 8 is securely fixed on rotor field spider 2 by screw, and the surface of wedge-shaped fixed strip 8 can be made using sunk screw
It is smooth, it is convenient that rotor core is installed；Through hole 20 and through hole 22 are matched with the screwed hole 11 on rotor field spider and screwed hole 13,
Permanent magnet sheath 7 can be fixed on rotor field spider 2 by fixing screws by the two through holes.Other wedge-shaped fixed strip 8 also may be used
To cancel mounting hole 19 and 21, it is directly welded on rotor field spider.
3) end baffle
The effect of end baffle 9 mainly in axial one side fixed rotor iron core 3 and permanent magnet 6, prevent its vertically one
Direction is moved, while in assembling process is installed, axial end plate is preferentially fixed on one end of rotor field spider, limits rotor core
3 and an axial freedom of permanent magnet 6, conveniently laminate rotor core 3 and push-in installation permanent magnet 6.The shape of end baffle 9 can
Think overall annular baffle, or the annular baffle of segmentation, its schematic diagram are as shown in Figure 4：Edge in end baffle 9
Even circumferential is disposed with through hole 23, is adapted with the screwed hole 18 on the A end faces of rotor field spider 2, can be by end by screw
Baffle plate is fixed on the A end faces of rotor field spider 2.
4) rotor core
Rotor core 3 is built up by the electrical steel sheet of high magnetic property, can reduce the vortex damage in motor operation course
Consumption, improve the efficiency of magneto.For the feature of clear explanation rotor core, Fig. 5 (a) is the global sections of rotor core 3
Schematic diagram, Fig. 5 (b) are the blown-up partial detail of rotor core 3, and Fig. 5 (c) is rotor core schematic three dimensional views, and Fig. 5 (d) is
Rotor core through hole schematic diagram.It is described as follows：Transfer from one department to another to be disposed with wedge-shaped mounting hole 24 on iron core, the shape with wedge-shaped fixed strip 8
Shape is adapted, and the two cooperation, can be positioned in the lamination process of rotor core 3, and can be with radially fixed rotor core 3；
Permanent magnet mounting groove 25 on rotor core 3, it is adapted with the size of permanent magnet 6, for installing permanent magnet 6, both sides protrusion is determined
Position boss 26, can be positioned in the installation process of permanent magnet 6, convenient to install permanent magnet 6；In the positioning that rotor core is overall
Boss is provided with through hole 27 and through hole 28, and it is adapted with the screwed hole 11 on rotor field spider and screwed hole 13, fixed permanent magnet
The screw of sheath 7 can be by the through hole on rotor core 3 and through hole 28, so as to which permanent magnet sheath 7 is fixed on into rotor field spider 2
On；The form processing of through hole 27 and through hole 28 on rotor core 3 has two kinds, first, rotor core is folded, block 11 is overall to be laminated on
Into after an entirety on rotor field spider 2, concentrate and the sub-assemblies are punched, now the shape of through hole 27 and through hole 28 is excellent
Elect circle as, second, folding block to rotor core according to lead to the hole site size carries out particular design, core lamination stack 12 is divided to be several
Unit circumferentially-spaced arranges that as shown in Fig. 5 (d), body feature is the same, can be after the completion of laminating, certainly after staggeredly laminating
Through hole 27 and through hole 28 are so formed, now shape of through holes is preferably rectangle.
5) permanent magnet sheath
Permanent magnet sheath is into opening shape, as shown in Fig. 6 (a).Shown in sheath scheme of installation such as Fig. 6 (b)：In rotor iron
After core 3 is laminated on rotor field spider 2, mounting hole, the through hole of rotor core 3 of permanent magnet sheath 7 are passed through with screw, directly will
Permanent magnet sheath 7 is fixed on rotor field spider 2, is formed between the permanent magnet mounting groove 25 on permanent magnet sheath 7 and rotor core 3
The installing space of permanent magnet is installed, now the A end faces of rotor field spider 2 have secured end baffle 9, the then installation of permanent magnet 6
Spatial form seals for one end, another end opening, the cross sectional shape half-via similar to the shape of permanent magnet 6, so, axial segmentation
Permanent magnet can be pushed into installing space from that one end of opening namely B end faces successively, after the completion of push-in, by pole end piece pressing plate
4 are fixed on the B end faces of rotor field spider 2, you can complete the installation and fixation of permanent magnet.It is small additionally, for circumferential distance between magnetic pole
Situation, when permanent magnet sheath is circumferentially evenly arranged, adjacent permanent magnet sheath can overlap adjacent fixing leg folded
Force together, fastened with unified screw, as shown in Fig. 6 (c).
According to the present invention, the magnet structure proposed according to this patent has that assembly technology is simple, and magnet steel installation is reliable
Firmly, without special frock.Leakage field between magnet steel can be reduced simultaneously, reduces eddy-current loss, and it is more to adapt to number of poles very well, magnetic
The circumferentially-spaced small occasion of steel.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (6)
- A kind of 1. method for the rotor mechanism for making magneto, it is characterised in that this method comprises the following steps：(a) rotor field spider (2) of cylinder is sleeved in rotating shaft (1), and it is circumferentially equal in the appearance wall of the rotor field spider (2) The fixed fixed strip (8) vertically in even distribution ground；(b) in vertically end face upper fixing end portion baffle plate (9) of the rotor field spider (2), rotor core will be laminated into (3) annulus shaped iron core is folded block block-by-block and is inserted on the rotor field spider (2), and fixation is realized by engaging with the fixed strip (8), And the secured core end pressing plate (5) on another axial end of the fixed end baffle (9) of the rotor field spider (2), So as to which the end baffle (9) limits the rotor core (3) in the axial direction with the core ends pressing plate (5)；(c) it is described laminate after the completion of rotor core (3) outer wall circumference uniform intervals formed with along the rotor field spider (2) The groove (25) of axial direction, for installing permanent magnet (6), sheath press strip (10) is filled on the rotor core (3) outer wall Groove (25) between gap, permanent magnet sheath (7) is fixed on to the lower section of the sheath press strip (10), the permanent magnet sheath (7) installing space of the permanent magnet (6) is formed between the groove (25) on rotor core (3) outer wall；(d) formed between the permanent magnet sheath (7) and groove (25) in the installing space of the permanent magnet (6) described in inserting forever Magnet (6), the permanent magnet sheath (7) that is further fixed and clamped is so as to lock the permanent magnet (6), on rotor field spider (2) One end fixed magnetic pole end pressing plate (4) of core ends pressing plate (5) is installed, realizes that the permanent magnet (6) inserts for fixed Axial restraint after installation, it is consequently formed the rotor mechanism；Rotor mechanism includes rotating shaft (1), rotor field spider (2), rotor core (3), pole end piece pressing plate (4), core ends pressing plate (5), permanent magnet (6), permanent magnet sheath (7), end baffle (9), sheath press strip (10), wherein rotor field spider (2), which are set in, to be turned On axle (1), rotor core (3) suit is fixed on the rotor field spider (2), end baffle (9) and core ends pressing plate (5) point The axial both ends of the rotor field spider (2) are not fixed on, for fixing the rotor core (3)；The outer wall circumference uniform intervals of the rotor core (3) are provided with the groove of the axial direction along the rotor field spider (2) (25)；Sheath press strip (10) is arranged at the gap between the groove (25) on the rotor core (3) outer wall, permanent magnet sheath (7) it is fixed on the sheath press strip (10), and insertion installation is formed between the permanent magnet sheath (7) and the groove (25) The space of permanent magnet (6)；One end that core ends pressing plate (5) is provided with the rotor field spider (2) is further fixed on pole end piece pressing plate (4), is used for The fixed axial restraint realized after the permanent magnet (6) insertion installation.
- 2. the method for the rotor mechanism of magneto is made as claimed in claim 1, it is characterised in that the rotor core (3) slot (24) is provided with inwall, for engaging with the fixed strip (8) being installed on the rotor field spider (2) so as to realize The fixation of the rotor core (3).
- 3. the method for the rotor mechanism of magneto is made as claimed in claim 1 or 2, it is characterised in that the rotor iron Core (3) is folded block (11) by the iron core of circular ring type and is overrided to form.
- 4. the method for the rotor mechanism of magneto is made as claimed in claim 3, it is characterised in that the rotor core (3) through hole is provided with, corresponding through hole is also provided with the permanent magnet sheath (7) and the sheath press strip (10), so as to pass through Screw, which is fixed on the rotor field spider (2), realizes being fixed for the permanent magnet (6).
- 5. the method for the rotor mechanism of magneto is made as claimed in claim 4, it is characterised in that the rotor core (3) through hole on is to fold punching after the completion of block (11) laminates by the iron core to be formed.
- 6. the method for the rotor mechanism of magneto is made as claimed in claim 4, it is characterised in that the rotor core (3) through hole on be by it is circumferentially distributed and between leave via clearance block core lamination stack (12) and the iron core fold block fold Pressure is so as to formation.
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| CN201510573567.2A CN105186743B (en) | 2015-09-10 | 2015-09-10 | A kind of method for the rotor mechanism for making magneto |
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| CN201510573567.2A CN105186743B (en) | 2015-09-10 | 2015-09-10 | A kind of method for the rotor mechanism for making magneto |
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| CN105186743B true CN105186743B (en) | 2017-11-14 |
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| CN104218708A (en) * | 2014-10-11 | 2014-12-17 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor rotor structure allowing rapid replacement of rotating shaft |
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| CN105186743A (en) | 2015-12-23 |
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