CN208369436U - A kind of moving-coil type unipolarity permanent magnet rotational alignment motor - Google Patents
A kind of moving-coil type unipolarity permanent magnet rotational alignment motor Download PDFInfo
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- CN208369436U CN208369436U CN201821055029.XU CN201821055029U CN208369436U CN 208369436 U CN208369436 U CN 208369436U CN 201821055029 U CN201821055029 U CN 201821055029U CN 208369436 U CN208369436 U CN 208369436U
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- permanent magnet
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- rotational alignment
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Abstract
The utility model discloses a kind of moving-coil type unipolarity permanent magnet rotational alignment motors, external stator including cartridge type, the drive end bearing bracket for being fixed on external stator both ends and rear end cap, the projecting shaft being movably arranged inside external stator.It is fixed with finite angle rotor on projecting shaft and linear motion is secondary.The inner stator being fixedly connected with rear end cap is equipped in the secondary inside of linear motion.Finite angle rotor and external stator act on, and linear motion secondary acts on simultaneously with external stator and inner stator, realize linear motion, finite angle movement and screw that projecting shaft passes through.The motor of the utility model has the advantages that structure is simple, compact, reduces the dosage of permanent magnet, improves air gap flux density, and it is smaller to have the characteristics that simple control, linear thrust and rotating torques influence each other.
Description
Technical field
The utility model relates to rotational alignment magneto field, specifically a kind of moving-coil type unipolarity permanent magnet rotation
Turn linear motor.
Background technique
Traditional motor can only generally provide single dof mobility (rotary motion or linear motion), and cannot achieve rotation
The compound motion for turning and moving along a straight line.But it in the systems such as joint of robot, industrial production, processing and assembly, often needs
Realize more free movements.Under normal conditions, this multifreedom motion is the base by that can execute straight line or rotary motion
This element is realized by mechanical splice combination, but there are following some problems for this mode: first, because in its functional component
It is mixed with mechanical organ, its friction, abrasion and deformation is all than more serious；Second, rotary motion and linear motion are couplings, no
It can independent control；Third, the precision of this executing agency are limited by being machined；4th, not only using multiple electric motors control
The volume and weight that will increase equipment, returning control makes troubles.And with the development of science and technology, Mechatronic Systems is increasingly multiple
Miscellaneous, especially some precision apparatus, such as bonder, bonding machines, PCB drilling etc., their requirements to driveability are increasingly
Height, the device control performances such as precision and response time realized by mechanically combining rotary motion and linear motion unit
It can no longer meet their demand.
Chinese patent 201410448886.6 discloses a kind of rotational alignment magneto, which uses unipolarity permanent magnetism
Body is followed successively by rotor inner shaft from inside to outside in radial directions, air bearing, the annular projection portion of support base, rotor core, turns
Gas is effectively reduced so that effective air gap increases much in sub- permanent magnet, straight line armature winding, rotating armature winding and stator core
Gap flux density, and since moving-magnetic type structure causes the electric machine structure to there is axial attraction.Chinese patent 201020582357.2
A kind of high-frequency linear rotating motor is disclosed, the straight-line movement portion of the motor and rotary motion part are a voice coil electricity respectively
Machine and rotating servo motor.Substantially the motor is to be installed together two freedom motors, not one truly
Body formula straight line rotates two-freedom degree electric machine, and volume is larger.Chinese patent 201510282204.3 discloses a kind of using the pole that interlocks
The Linear-rotation permanent-magnet actuator of structure, which is arranged three groups of stator units in the axial direction, and three groups of stator units pass through
The connection of non-magnetic connector, and mover is arranged has been alternately arranged opposite magnetic pole in the axial direction, effectively reduces permanent magnet dosage,
But bring complicated control.
Utility model content
In view of the status of the prior art, the purpose of this utility model is to provide a kind of rotations of moving-coil type unipolarity permanent magnet
Linear motor, the motor have the advantages that structure is simple, compact, reduce the dosage of permanent magnet, improve air gap flux density, and have
It controls simple, linear thrust and rotating torques influences each other the features such as smaller.
The technical solution of the utility model is as follows: a kind of moving-coil type unipolarity permanent magnet rotational alignment motor, including cartridge type
External stator, the drive end bearing bracket and rear end cap, the projecting shaft that is movably arranged inside external stator that are fixed on external stator both ends.On projecting shaft
It is fixed with finite angle rotor and linear motion is secondary.In the secondary inside of linear motion is equipped with and is fixedly connected with rear end cap
Stator.Finite angle rotor and external stator act on, and linear motion is secondary to be acted on simultaneously with outer, inner stator, realize that projecting shaft passes through
Linear motion, finite angle movement and screw.
Above-mentioned projecting shaft is axially distributed the first fixed part and the second fixed part, the front end and front end of the first fixed part
The first sleeve covered is rotatably assorted, and finite angle rotor is mounted on the first fixed part.Second fixed part is cylinder type, straight line
Movement secondary is fixedly connected with the second fixed part, and inner stator is located at the secondary inside of linear motion.
Above-mentioned rear end cap has the installation axle extended to inside the second fixed part.Inner stator is fixed on the mounting shaft.Peace
Dress axis is equipped with the second sleeve matched with the second fixed part inner wall.
Above-mentioned finite angle rotor is made of the rotor core and rotating armature winding of toothed portion.External stator is by toothed fixed
Sub- iron core and unipolarity set of permanent magnets at.
Above-mentioned linear motion secondary is made of straight line armature winding and winding skeleton.Winding skeleton is cylinder type, winding bone
The end of frame and the end of the second fixed part are coaxially connected.
Above-mentioned unipolarity permanent magnet and inner stator are the Nd-Fe-B permanent magnet of same polarity, and magnetizing direction is radial magnetizing.
The number p of the above-mentioned unipolarity permanent magnet and tooth number Q of toothed stator core meets the pole of three-phase motor with permanent magnets
Slot cooperation requires.
Above-mentioned straight line armature winding is making toroidal coil, is mounted on the outer wall of winding skeleton.Rotating armature winding is to concentrate
Winding, and rotating armature winding is embedded between the teeth portion of rotor core.
Above-mentioned end cap is permeability magnetic material, and projecting shaft is un-conducted magnetic material.
Angle τ shared by the teeth portion of said stator iron corecWith angle τ shared by unipolarity permanent magnetpmRatio are as follows: 0.5 to 1.5.
The beneficial effects of the utility model are: the moving-coil type unipolarity permanent magnet rotational alignment motor of the utility model, is adopted
With shared external stator, by the way that rotating armature winding and straight line armature winding are arranged in the axial direction, in unipolarity permanent magnet excitation
Under the action of magnetic field, the torque of driving rotor rotation can be generated, can also generate the linear thrust of driving rotor linear motion,
The torque of driving rotor rotation and the linear thrust of driving rotor linear motion can also be generated simultaneously, so that rotor be driven to carry out
Screw realizes the two-freedom movement of rotor；And linear thrust and rotating torques influence each other it is smaller, can be very square
Just rotation, linear motion uncoupling control are realized.This kind of structure not only solve the prior art by mechanical part conversion and it is more
The problems such as multifreedom motion mode bring low efficiency, easy to wear, lubricating difficulties that a motor is realized, also improve electricity
The torque density of machine and the advantages of without axial attraction, effectively improves the precision and efficiency of entire production running.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of moving-coil type unipolarity permanent magnet rotational alignment motor in the present embodiment.
Fig. 2 is the structural schematic diagram of finite angle rotor in the present embodiment.
Fig. 3 is the schematic diagram of the section structure of external stator in the present embodiment.
Fig. 4 is the schematic diagram of the section structure of the present embodiment linear movement primary.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Fig. 1 to Fig. 4 show the structural schematic diagram of the utility model.
Appended drawing reference therein are as follows: external stator 1, stator core 11, unipolarity permanent magnet 12, finite angle rotor 2, rotor
Iron core 21, rotating armature winding 22, move along a straight line secondary 3, straight line armature winding 31, winding skeleton 32, projecting shaft 4, drive end bearing bracket
5, rear end cap 6, inner stator 7, first sleeve 81, second sleeve 82.
The moving-coil type unipolarity permanent magnet rotational alignment motor of the present embodiment, external stator 1 including cartridge type, be fixed on it is outer fixed
The drive end bearing bracket 5 and rear end cap 6 at sub 1 both ends, the projecting shaft 4 being movably arranged inside external stator 1.
Finite angle rotor 2 and linear motion secondary 3 are fixed on projecting shaft 4.It is equipped in the inside of linear motion secondary 3
The inner stator 7 being fixedly connected with rear end cap 6.Finite angle rotor 2 is coupled with external stator 1, linear motion secondary 3 and external stator 1
It interacts simultaneously with inner stator 7, realizes linear motion, finite angle movement and screw that projecting shaft 4 passes through.
Projecting shaft 4 is axially distributed the first fixed part and the second fixed part, on the front end of the first fixed part and drive end bearing bracket 5
First sleeve 81 be rotatably assorted, finite angle rotor 2 is mounted on the first fixed part.Second fixed part is cylinder type, straight line
Movement secondary 3 is fixedly connected with the second fixed part, and inner stator 7 is located at the inside of linear motion secondary 3.
Rear end cap 6 has the installation axle extended to inside the second fixed part.Inner stator 7 is fixed on the mounting shaft.Installation axle
It is equipped with the second sleeve 82 matched with the second fixed part inner wall.
As shown in Fig. 2, finite angle rotor 2 is made of the rotor core 21 and rotating armature winding 22 of toothed portion.It is outer fixed
Son 1 is made of toothed stator core 11 and unipolarity permanent magnet 12.
Rotating armature winding 22 and straight line armature winding 31 are axially distributed on projecting shaft 4, in unipolarity permanent magnet excitation
Under the action of magnetic field, the torque that driving rotor 2 rotates can be generated, driving linear motion secondary 3 can be also generated and move along a straight line
Linear thrust, additionally it is possible to while generate driving projecting shaft 4 rotate torque and driving projecting shaft 4 move along a straight line straight line push away
Power realizes the two-freedom movement of projecting shaft 4 so that projecting shaft 4 be driven to carry out screw
Linear motion secondary 3 is made of straight line armature winding 31 and winding skeleton 32.Winding skeleton 32 is cylinder type, winding
The end of skeleton 32 and the end of the second fixed part are coaxially connected.
Unipolarity permanent magnet 12 and inner stator 7 are the Nd-Fe-B permanent magnet of same polarity, and magnetizing direction is radial magnetizing.
The number p of the unipolarity permanent magnet 12 and tooth number Q of toothed stator core 11 meets the pole of three-phase motor with permanent magnets
Slot cooperation requires.
As shown in figure 4, straight line armature winding 31 is making toroidal coil, it is mounted on the outer wall of winding skeleton 32.Rotating armature
Winding 22 is concentratred winding, and rotating armature winding 22 is embedded between the teeth portion of rotor core 21.
End cap 6 is permeability magnetic material in the present embodiment, and projecting shaft 4 is un-conducted magnetic material.
As shown in figure 3, angle τ shared by the teeth portion of stator core 11cWith angle τ shared by unipolarity permanent magnet 12pmRatio are as follows:
0.5 to 1.5.
The moving-coil type unipolarity permanent magnet rotational alignment motor of the present embodiment not only solves the prior art by Machinery Ministry
The problems such as multifreedom motion mode bring low efficiency, the easy to wear, lubricating difficulties that part conversion and multiple motors are realized,
It also improves the torque density of motor and the advantages of without axial attraction, effectively improves the precision and efficiency of entire production running.
The most preferred embodiment of the utility model has illustrated, the various change or remodeling made by those of ordinary skill in the art
All without departing from the scope of the utility model.
Claims (10)
1. a kind of moving-coil type unipolarity permanent magnet rotational alignment motor, it is characterised in that: external stator (1), fixation including cartridge type
External stator (1) both ends drive end bearing bracket (5) and rear end cap (6), be movably arranged at the internal projecting shaft (4) of external stator (1)；Described
It is fixed with finite angle rotor (2) on projecting shaft (4) and moves along a straight line secondary (3)；It is equipped in the inside for the secondary (3) that moves along a straight line
The inner stator (7) being fixedly connected with rear end cap (6)；The finite angle rotor (2) and external stator (1) acts on, and described is straight
Line moves secondary (3) and acts on simultaneously with external stator (1) and inner stator (7), linear motion that realization projecting shaft (4) passes through, limited
Rotating angle movement and screw.
2. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 1, it is characterised in that: the stretching
Axis (4) is axially distributed the first fixed part and the second fixed part, the front end of first fixed part and on drive end bearing bracket (5) the
One sleeve (81) is rotatably assorted, and the finite angle rotor (2) is mounted on the first fixed part；Second fixed part is
Cylinder type, the linear motion secondary (3) are fixedly connected with the second fixed part, and the inner stator (7) is located at linear motion
The inside of secondary (3).
3. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 2, it is characterised in that: the rear end
Lid (6) has the installation axle extended to inside the second fixed part；The inner stator (7) is fixed in the installation axle；Institute
The installation axle stated is equipped with the second sleeve (82) matched with the second fixed part inner wall.
4. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 2, it is characterised in that: described limited turn
Angle rotor (2) is made of the rotor core (21) and rotating armature winding (22) of toothed portion；The external stator (1) is by toothed fixed
Sub- iron core (11) and unipolarity permanent magnet (12) composition.
5. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 4, it is characterised in that: the straight line fortune
Dynamic secondary (3) is made of straight line armature winding (31) and winding skeleton (32)；The winding skeleton (32) is cylinder type, winding
The end of skeleton (32) and the end of the second fixed part are coaxially connected.
6. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 4, it is characterised in that: the unipolarity
Permanent magnet (12) and inner stator (7) are the Nd-Fe-B permanent magnet of same polarity, and magnetizing direction is radial magnetizing.
7. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 4, it is characterised in that: the unipolarity
The pole slot cooperation that the number p of permanent magnet (12) and the tooth number Q of toothed stator core (11) meets three-phase motor with permanent magnets requires.
8. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 5, it is characterised in that: the straight-line electric
Pivot winding (31) is making toroidal coil, is mounted on the outer wall of winding skeleton (32)；The rotating armature winding (22) be concentrate around
Group, and rotating armature winding (22) is embedded between the teeth portion of rotor core (21).
9. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 1, it is characterised in that: the end cap
It (6) is permeability magnetic material, the projecting shaft (4) is un-conducted magnetic material.
10. moving-coil type unipolarity permanent magnet rotational alignment motor according to claim 4, it is characterised in that: the stator
Angle τ shared by the teeth portion of iron core (11)cWith angle τ shared by unipolarity permanent magnet (12)pmRatio are as follows: 0.5 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055029.XU CN208369436U (en) | 2018-07-05 | 2018-07-05 | A kind of moving-coil type unipolarity permanent magnet rotational alignment motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055029.XU CN208369436U (en) | 2018-07-05 | 2018-07-05 | A kind of moving-coil type unipolarity permanent magnet rotational alignment motor |
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| Publication Number | Publication Date |
|---|---|
| CN208369436U true CN208369436U (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821055029.XU Active CN208369436U (en) | 2018-07-05 | 2018-07-05 | A kind of moving-coil type unipolarity permanent magnet rotational alignment motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736675A (en) * | 2018-07-05 | 2018-11-02 | 中国科学院宁波材料技术与工程研究所 | A kind of moving-coil type unipolarity permanent magnet rotational alignment motor |
| CN114552938A (en) * | 2022-02-22 | 2022-05-27 | 无锡丰玖恒电子科技有限公司 | Digital two-phase stepping driver with quick-release maintenance function |
-
2018
- 2018-07-05 CN CN201821055029.XU patent/CN208369436U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736675A (en) * | 2018-07-05 | 2018-11-02 | 中国科学院宁波材料技术与工程研究所 | A kind of moving-coil type unipolarity permanent magnet rotational alignment motor |
| CN108736675B (en) * | 2018-07-05 | 2023-11-14 | 中国科学院宁波材料技术与工程研究所 | Moving-coil type unipolar permanent magnet rotary linear motor |
| CN114552938A (en) * | 2022-02-22 | 2022-05-27 | 无锡丰玖恒电子科技有限公司 | Digital two-phase stepping driver with quick-release maintenance function |
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