CN106329864A - Permanent magnet synchronous rotation elimination motor of rotation elimination platform - Google Patents
Permanent magnet synchronous rotation elimination motor of rotation elimination platform Download PDFInfo
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- CN106329864A CN106329864A CN201510401931.7A CN201510401931A CN106329864A CN 106329864 A CN106329864 A CN 106329864A CN 201510401931 A CN201510401931 A CN 201510401931A CN 106329864 A CN106329864 A CN 106329864A
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Abstract
The invention relates to a permanent magnet synchronous rotation elimination motor of a rotation elimination platform. The permanent magnet synchronous rotation elimination motor comprises a machine shell, a stator and a rotor which are arranged from outside to inside in sequence, wherein the rotor is connected with the machine shell through a bearing; the stator is connected with a servo motor driver; the inner circumference of the stator adopts a regularly-round multi-groove structure; the rotor adopts a near-polar-slot surface-mounted type structure; the rotor comprises a rotor iron core and permanent magnets; the rotor iron core adopts an annular structure; multiple convex rotor teeth are uniformly distributed on the outer surface of the rotor iron core; the permanent magnets are fixed between adjacent rotor teeth; and the permanent magnets are cuboid-shaped magnetic steel or arc-shaped magnetic steel with equal thickness in each place. Compared with the prior art, the permanent magnet synchronous rotation elimination motor has the advantages of simple structure, light weight, low rotational inertia, high efficiency, high power density, short end part winding, relatively high flux-weakening capability and the like, and is applicable to motor structure design of specific dimensions in the rotation elimination platform; and meanwhile, the speed of the permanent magnet synchronous rotation elimination motor can reach 780r/min within 0.06s.
Description
Technical field
The present invention relates to a kind of permagnetic synchronous motor, especially relate to the permanent-magnet synchronous racemization electricity of a kind of despun platform
Machine.
Background technology
For rotary missile, the attitude of inertial platform and antenna, around its longitudinal axis high speed rotating, is caused motion by body
Coupling.Despun platform system can isolate the body motion coupling influence to inertial platform, keeps antenna at inertial space
Stablize, improve missile guidance accuracy.The rotation speed change rule of rotary missile is usually and increases rapidly when launching,
Then decline, settle out after finally rising to certain value.Rotary missile is from the time interval being transmitted into stabilization of speed
The shortest, the most several seconds, need to realize quickly playing rotation and reaching accordingly, as the racemization motor of driver part in system
The steadily function of rotating speed.
At present, servo drive method is broadly divided into two kinds: a kind of is the driving side using servomotor to join decelerator
Method, a class is the method that servomotor directly drives.
Motor belt motor decelerator drives: by gear reducer mechanism according to certain speed ratio relation, the speed of motor dropped
Low, moment increases in the range of controlling organization needs.Adopt in this way, on the one hand, mechanism is more complicated,
Process and assemble process is complicated, and whole mechanism incipient fault point increases, and the vibration noise that running produces is big；Another
Aspect, bulk has the occasion of restriction, does not has enough installation sites for this mechanism.
The method of motor direct-drive: greatly reduce the complexity of whole mechanism, it is possible to the most accurate work
Use servo control mechanism, reduce operational shock noise, the reality of Electromechanical Design can be easy in limited space
Existing so that whole mechanism is made small and exquisite.
Chinese patent CN203466704U discloses a kind of permanent magnet synchronous servo motor and rotor block, belongs to permanent magnetism
Synchronous motor field.Described permanent magnet synchronous servo motor includes: support, drive end bearing bracket, rear end cap, rotating shaft, two
Bearing, rotor block and have winding stator core, described rotor block includes rotor core and multiple permanent magnet, described many
Individual permanent magnet all embeds described rotor core, and the every two pieces of permanent magnets in the plurality of permanent magnet are combined into one " V "
Type, and become a magnetic pole of described permanent magnet synchronous servo motor, described permanent magnet synchronous servo motor includes that four is right
Pole, described in have winding stator core to be arranged on described base inner, described in have winding stator core by stator core
Line forms, described in have winding stator core and described rotor block mutual induction.The pole groove number of this patent is the most fewer,
There is the defect that energy density is low, and this patent volume and weight is relatively big, is unfavorable for alleviating whole system weight.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of despun platform is provided
Permanent-magnet synchronous racemization motor, have simple in construction, lightweight, low rotor inertia, high efficiency, high power density,
End winding is short and the advantage such as preferable weak magnetic energy power, it is adaptable in despun platform, the electric machine structure under specific dimensions sets
Meter.
The purpose of the present invention can be achieved through the following technical solutions:
The permanent-magnet synchronous racemization motor of a kind of despun platform includes the casing set gradually from outside to inside, stator and turns
Son, described rotor is connected with casing by bearing, and described stator connects has motor servo driver, in described stator
Week is circular multi-groove structure, and described rotor is proximal pole groove surface-mount type structure, including rotor core and permanent magnet, institute
Stating rotor core is circulus, and the outer surface of rotor core is evenly distributed with the rotor tooth of multiple protrusion, described forever
Magnet is fixed between adjacent rotor tooth, and permanent magnet is cuboid magnet steel or the arc-shaped magnet steel of uniform thickness setting everywhere.
The groove number of described stator is 22～26, and described permanent magnet is 18～22 poles.
The groove number of described stator is 24, and described permanent magnet is 20 poles.
This permanent-magnet synchronous racemization motor reaches 780r/min in 0.06s.
The outer circumference diameter of described stator is less than 70mm, the inner circumferential a diameter of 46～48mm of described rotor.
The outer circumference diameter of described stator is 68mm, and a diameter of 56mm of inner circumferential of stator, the periphery of described rotor is straight
Footpath is 55mm, a diameter of 47mm of inner circumferential of rotor.
The arc length of described permanent magnet is 7～8 times of the arc length of rotor tooth.
Also including the position sensor connecting motor servo driver, rotor end is located at by described position sensor
In casing.
Also including the elastic spring being located on rotor, described elastic spring is positioned at bearing and the position sensing of rotor one end
Between device.
It is provided with lining between described bearing and casing.
Compared with prior art, the invention have the advantages that
1) because needing docking, cabling in despun platform system, walking light path and alleviate whole system weight, therefore motor is
Big hollow structure, respective rotor iron core is circulus, simple in construction, lightweight.
2) the groove number of stator may be designed as 22～26, and Design of Permanent Magnet is 18～22 poles, wherein, when in stator
Week is circular 24 groove structure, when rotor is the proximal pole groove surface-mount type structure of 20 poles, can quickly play rotation and at 0.06s
Inside reach the requirement of 780r/min, ensure number of stator slots, rotor number of poles bring more low rotor inertia, high efficiency,
High power density, End winding be short and while the advantage such as preferable weak magnetic energy power, reduces manufacture difficulty, reduces raw
Produce cost, it is adaptable to the motor construction under specific dimensions in despun platform.
3) despun platform is the most harsh to the dimensional requirement of racemization motor, it is ensured that rotor output speed and moment same
Time want cube little, this permanent-magnet synchronous racemization motor maximum outside diameter should be less than 70, minimum diameter be 47 thin ring-type,
Meet design requirement.
4) stator is by controlling three line winding current sizes and FREQUENCY CONTROL rotor output speed and moment, and position passes
Sensor accurately provides the position detection information of rotor, it is achieved servo-drive, and lining is bearing, position sensing is fixing carries
For shoulder block, elastic spring is the fixing shaft shoulder that provides of position sensor, and structural safety, reliability is high.
5) position sensor closed loop control or position-sensor-free vector opened loop control it are capable of, it is adaptable to no
Same operating mode, closed loop control simultaneously can increase the precision of control.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention；
Fig. 2 is stator structure schematic diagram in the present invention；
Fig. 3 is rotor structural representation of the present invention.
In figure: 1, stator, 2, rotor, 3, casing, 4, bearing, 5, lining, 6, elastic spring, 7,
Position sensor, 8, permanent magnet, 9, rotor core.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the technology of the present invention side
Implement premised on case, give detailed embodiment and concrete operating process, but the protection model of the present invention
Enclose and be not limited to following embodiment.
Embodiment one
As it is shown in figure 1, the permanent-magnet synchronous racemization motor of a kind of despun platform includes the casing set gradually from outside to inside
3, stator 1 and rotor 2, and position sensor 7 and elastic spring 6, rotor 2 is by bearing 4 and casing 3
Connecting, be provided with lining 5 between bearing 4 and casing 3, casing 3 two ends are provided with end cap, and stator 1 includes stator ferrum
Core and stator winding, stator winding connects has motor servo driver, as in figure 2 it is shown, stator 1 inner circumferential is positive round
Shape multi-groove structure, rotor 2 is proximal pole groove surface-mount type structure, as it is shown on figure 3, include rotor core 9 and permanent magnet
8, rotor core 9 is circulus as rotating shaft, and the outer surface of rotor core 9 is evenly distributed with multiple protrusion
Rotor tooth, permanent magnet 8 be cuboid magnet steel or everywhere uniform thickness arrange arc-shaped magnet steel, permanent magnet 8 is fixed on
Between adjacent rotor tooth, position sensor 7 connects motor servo driver, and is located at the casing of rotor 2 end
On 3, elastic spring 6 is located on rotor 2, and elastic spring 6 is positioned at bearing 4 and the position biography of rotor 2 one end
Between sensor 7.And the outer circumference diameter of stator 1 is less than 70mm, the inner circumferential a diameter of 46～48mm of rotor 2,
The arc length of permanent magnet is 7～8 times of the arc length of rotor tooth.
In the present embodiment, the groove number of stator 1 is 24, coordinates rotor 2 to realize motor high-energy-density, permanent magnetism
Body 8 is 20 poles, coordinate stator 1 realize motor quickly rise rotation and in 0.06s rotating speed reach 780r/min.Fixed
The outer circumference diameter of son 1 is 68mm, a diameter of 56mm of inner circumferential of stator 1, and the outer circumference diameter of rotor 2 is 55mm,
The a diameter of 47mm of inner circumferential of rotor 2, the arc length of permanent magnet 8 is 7.5 times of the arc length of rotor tooth.
In this permanent-magnet synchronous racemization motor, rotor core 9 provides magnetic conduction path, permanent magnet 8 for permanent magnet 8
It is bonded on rotor core 9 and provides stationary magnetic field for motor, provide installation site for position sensor 7 is fixing simultaneously,
The arc length of permanent magnet, much larger than the arc length of rotor tooth, meets the requirement of high-energy-density, and casing 3 is stator 1, end
Lid, bearing 4, position sensor 7 are fixing provides installation site, and lining 5 be that bearing 4, position sensor 7 are consolidated
Surely providing shoulder block, elastic spring 6 provides the shaft shoulder for position sensor 7 is fixing, and motor is by providing phase to stator 1
The three-phase alternating current signal of telecommunication of phase difference 120 °, produces rotating excitation field and drives p-m rotor 2 to rotate, position sensor
The position signalling that 7 detection motors rotate, feeds back to motor servo driver, and motor servo driver is according to feedback letter
Number real-time control motor rotation.
Through test, use stator multiple-grooved, the structure of rotor multipole to realize specific dimensions racemization motor and meet quick rising
Revolve and reach in 0.06s the requirement of 780r/min.
Embodiment two
The present embodiment is with the difference of embodiment one, and the groove number of stator 1 is 22, coordinates rotor 2 to realize electricity
Machine high-energy-density, permanent magnet 8 is 18 poles, coordinates stator 1 to realize motor and quickly plays rotation and turn in 0.06s
Speed reaches 780r/min, and remaining structure is with embodiment one.
Embodiment three
The present embodiment is with the difference of embodiment one, and the groove number of stator 1 is 26, coordinates rotor 2 to realize electricity
Machine high-energy-density, permanent magnet 8 is 22 poles, coordinates stator 1 to realize motor and quickly plays rotation and turn in 0.06s
Speed reaches 780r/min, and remaining structure is with embodiment one.
Claims (10)
1. a permanent-magnet synchronous racemization motor for despun platform, including the casing (3) set gradually from outside to inside,
Stator (1) and rotor (2), described rotor (2) is connected with casing (3) by bearing (4), described stator
(1) connection has motor servo driver, it is characterised in that described stator (1) inner circumferential is circular multi-groove structure,
Described rotor (2) is proximal pole groove surface-mount type structure, including rotor core (9) and permanent magnet (8), described rotor
Iron core (9) is circulus, and the outer surface of rotor core (9) is evenly distributed with the rotor tooth of multiple protrusion, institute
Stating permanent magnet (8) to be fixed between adjacent rotor tooth, permanent magnet (8) is cuboid magnet steel or uniform thickness setting everywhere
Arc-shaped magnet steel.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
The groove number of described stator (1) is 22～26, and described permanent magnet (8) is 18～22 poles.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 3, it is characterised in that
The groove number of described stator (1) is 24, and described permanent magnet (8) is 20 poles.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
This permanent-magnet synchronous racemization motor reaches 780r/min in 0.06s.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
The outer circumference diameter of described stator (1) is less than 70mm, the inner circumferential a diameter of 46～48mm of described rotor (2).
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 5, it is characterised in that
The outer circumference diameter of described stator (1) is 68mm, a diameter of 56mm of inner circumferential of stator (1), described rotor (2)
Outer circumference diameter be 55mm, a diameter of 47mm of inner circumferential of rotor (2).
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
7～8 times of the arc length that arc length is rotor tooth of described permanent magnet (8).
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
Also including the position sensor (7) connecting motor servo driver, rotor (2) is located at by described position sensor (7)
In the casing (3) of end.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 8, it is characterised in that
Also including the elastic spring (6) being located on rotor (2), described elastic spring (6) is positioned at rotor (2) one end
Bearing (4) and position sensor (7) between.
The permanent-magnet synchronous racemization motor of a kind of despun platform the most according to claim 1, it is characterised in that
Lining (5) it is provided with between described bearing (4) and casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401931.7A CN106329864A (en) | 2015-07-09 | 2015-07-09 | Permanent magnet synchronous rotation elimination motor of rotation elimination platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401931.7A CN106329864A (en) | 2015-07-09 | 2015-07-09 | Permanent magnet synchronous rotation elimination motor of rotation elimination platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329864A true CN106329864A (en) | 2017-01-11 |
Family
ID=57724947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510401931.7A Pending CN106329864A (en) | 2015-07-09 | 2015-07-09 | Permanent magnet synchronous rotation elimination motor of rotation elimination platform |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1701493A (en) * | 2003-08-04 | 2005-11-23 | 谐波传动系统有限公司 | Flat hollow type brushless servo motor with tool mounting hole |
| CN2826812Y (en) * | 2005-08-03 | 2006-10-11 | 张金锋 | Generator structure |
| CN1856921A (en) * | 2003-07-21 | 2006-11-01 | 科勒摩根公司 | Highly efficient permanent magnet brushless motor |
| US7535149B2 (en) * | 2003-06-10 | 2009-05-19 | Siemens Aktiengesellschaft | Permanent-magnet excited synchronous motor |
| US20120319526A1 (en) * | 2009-12-08 | 2012-12-20 | Roland Hagenlocher | Electric machine |
| CN204190519U (en) * | 2014-05-19 | 2015-03-04 | 廊坊市科成节能技术有限公司 | Three-phase permanent is brushless shift motor |
| CN204835874U (en) * | 2015-07-09 | 2015-12-02 | 上海航天有线电厂有限公司 | Synchronous racemization motor of permanent magnetism of despun platform |
-
2015
- 2015-07-09 CN CN201510401931.7A patent/CN106329864A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7535149B2 (en) * | 2003-06-10 | 2009-05-19 | Siemens Aktiengesellschaft | Permanent-magnet excited synchronous motor |
| CN1856921A (en) * | 2003-07-21 | 2006-11-01 | 科勒摩根公司 | Highly efficient permanent magnet brushless motor |
| CN1701493A (en) * | 2003-08-04 | 2005-11-23 | 谐波传动系统有限公司 | Flat hollow type brushless servo motor with tool mounting hole |
| CN2826812Y (en) * | 2005-08-03 | 2006-10-11 | 张金锋 | Generator structure |
| US20120319526A1 (en) * | 2009-12-08 | 2012-12-20 | Roland Hagenlocher | Electric machine |
| CN204190519U (en) * | 2014-05-19 | 2015-03-04 | 廊坊市科成节能技术有限公司 | Three-phase permanent is brushless shift motor |
| CN204835874U (en) * | 2015-07-09 | 2015-12-02 | 上海航天有线电厂有限公司 | Synchronous racemization motor of permanent magnetism of despun platform |
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Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |