CN105119463A - Novel core-including linear motor, motor servo system and core preparation method - Google Patents
Novel core-including linear motor, motor servo system and core preparation method Download PDFInfo
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- CN105119463A CN105119463A CN201510435140.6A CN201510435140A CN105119463A CN 105119463 A CN105119463 A CN 105119463A CN 201510435140 A CN201510435140 A CN 201510435140A CN 105119463 A CN105119463 A CN 105119463A
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- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000000956 alloy Substances 0.000 claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 20
- 239000013078 crystal Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 46
- 239000005300 metallic glass Substances 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 238000005137 deposition process Methods 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 238000007578 melt-quenching technique Methods 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
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- 229910052715 tantalum Inorganic materials 0.000 claims description 6
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
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- 229910002027 silica gel Inorganic materials 0.000 claims description 3
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- 239000011162 core material Substances 0.000 abstract description 25
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 abstract description 3
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- 229910000976 Electrical steel Inorganic materials 0.000 description 5
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- Linear Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a novel core-including linear motor comprising a stator part and a mover part which moves relative to the stator part. The stator part comprises a stator seat, and a magnetic track which is arranged on the stator seat along the moving direction and is composed of a plurality of permanent magnet stators. The mover part comprises a core, and a multi-phase coil winding wound on the core. The novel core-including linear motor is characterized in that the core is formed by stacking multiple amorphous alloy, powder amorphous alloy or superfine crystal alloy sheets which are perpendicular to the plane of the magnetic track, the core is provided with a plurality of yoke slots at the side opposite to the magnetic track, and the multi-phase coil winding is wound in the yoke slots. The invention further provides a method for preparing the motor core and a linear motor servo system. According to the invention, improvement is made on the core structure and core material aiming at the existing core-including linear motor. Therefore, the defects of traditional core-including linear motors are overcome effectively, the performance of the core-including linear motor is improved greatly, and the core-including linear motor has a broader application prospect.
Description
Technical field
The invention belongs to technical field of automation, be specifically related to the preparation method of a kind of novel cored linear electric motors, motor servo system and iron core.
Background technology
Linear electric motors are a kind of transmission devices electric energy being directly changed into rectilinear motion mechanical energy, and be made up of stator, stator seat, mover and mover Zuo Deng mechanism, it can be regarded an electric rotating machine as and cut open by radial direction, and generate plane forms.Linear electric motors rely on high speed, high to accelerate, high accuracy and the good characteristic such as stroke is unrestricted, are widely used in high-accuracy automation equipment, Digit Control Machine Tool, precision measurement system, electronics and the field such as semiconductor processing equipment, intelligence manufacture.
Seen linear electric motors are divided into three classes at present: unique motor of iron-core less motor, cored motor and " slotless " structure.As shown in Figure 1, the force application part (mover) of cored motor is set up on track (stator), and it wraps in outside iron core with heterogeneous copper winding and is formed; Iron core is that magnetic flux provides an efficient passage, it can be made to circulate between mover and stator, thus make core structure can produce very large active force, ensures the driveability of motor; In addition, the passage of core structure or a guarantee motor high efficiency and heat radiation, realizes highly efficient cooling function.
In fact, core structure normally adopts the silicon steel sheet composition with high magnetic conduction power, and its shortcoming is:
1, the attraction between silicon sheet core and track is too large, and its numerical value is equivalent to the 5-13 of Rated motor active force doubly; The bearing arrangement of linear motor rotor seat must provide enough support forces, therefore has higher requirement to the rigidity of bearing arrangement; And installation process is more difficult.
2, the iron loss of silicon sheet core is comparatively large, and especially efficiency low, easy heating during high frequency, temperature stability are poor, are difficult to realize high-speed cruising.
3, in order to mover, mover seat are placed in position suitable on track, need to use silicon sheet core to apply a horizontal force to mover, at this time just there will be slot effect; Diverse location needs adjust the active force that produces of iron core to keep constant speed, therefore slot effect can limit the smoothness of whole linear motion system.
Summary of the invention
The present invention effectively overcomes the shortcoming be mentioned in background technology, makes improvements for existing cored linear electric motors core material and structure, and to promote the performance of cored linear electric motors, its concrete technical scheme is as follows:
A kind of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department; Described stator department include stator seat and on this stator seat along the direction of motion arrangement the track be made up of some permanent-magnet stators; Described mover portion includes the iron core of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, and this iron core is formed with some yoke grooves with track relative to side, in this yoke groove, be wound with polyphase winding winding.
In the middle of one or more embodiment of the present invention, described iron core forms by folding perpendicular to multiple non-crystaline amorphous metal of described track plane or the thin slice of ultramicro-crystal alloy, and each thin slice is parallel to magnetic line of force direction, to reduce the eddy current loss that the magnetic line of force produces.
In the middle of one or more embodiment of the present invention, described thin slice comprises the main body being parallel to the direction of motion, and by the multiple teeth extended on the downside of described main body, is formed with groove between multiple tooth; Described thin slice is stacked to described iron core mutually.
In the middle of one or more embodiment of the present invention, described thin slice comprises the main body perpendicular to the direction of motion, according to the size of yoke groove, is formed with described iron core so that the thin slice of different size is mutually stacked.
In the middle of one or more embodiment of the present invention, described iron core by non-crystaline amorphous metal powder and mix with adhesive or paste one compressing.
In the middle of one or more embodiment of the present invention, described stator department comprises the first stator department and the second stator department that are symmetricly set in described mover portion upper and lower.
In the middle of one or more embodiment of the present invention, described permanent-magnet stator is made up of non-crystaline amorphous metal or ultramicro-crystal alloy material.
The present invention proposes the preparation method of the soft magnet core that a kind of above-mentioned linear electric motors are applied, and specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) by alloy sheet punching press obtained for upper step or be cut into preset shape;
3) each alloy sheet is stacked mutually, between with the folded bonding of epoxy resin or insulating heat-conductive silica gel, obtained described soft magnet core.
The present invention proposes the preparation method of the soft magnet core that a kind of above-mentioned linear electric motors are applied, and specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) alloy sheet obtained for upper step is ground into powder material, powder material is mixed with adhesive or paste one compressing, obtained described soft magnet core.
The present invention proposes a kind of servo system for linear motor, comprises described novel cored linear electric motors, grating scale or Magnetic ruler, read head, motor driver and controller; On the stator seat that described grating scale or Magnetic ruler are arranged at this motor or on other support consistent with linear movement direction; The mover portion of described read head and this motor fixes, and it is relative with described grating scale or Magnetic ruler, its signal output part is connected to described controller, the stator seat of this motor is provided with the line slideway matched with mover portion, and is provided with non-crystaline amorphous metal or ultramicro-crystal alloy coating in this line slideway surface.
The present invention proposes a kind of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department, it is characterized in that: the track be made up of some permanent-magnet stators that described mover portion comprises pedestal and linearly arranges on this pedestal, described stator department includes the iron core of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, this iron core is formed with some yoke grooves with track relative to side, in this yoke groove, be wound with polyphase winding winding.
The present invention be directed to inherent shortcoming existing for current cored linear electric motors, do the improvement of core structure and core material, amorphous alloy material as the silicon steel sheet of iron core and routine than saving material 70%, permeability is 20 times of silicon steel sheet, loss can be made to reduce by 90%, reduce the volume of mover, raise the efficiency, have higher speed and temperature stability.Simultaneously, amorphous state or ultracrystallite structural material have feature that is high temperature resistant, good heat conductive performance, and amorphous state or ultracrystallite structural material thin slice generally only have the thickness of 20-40 micron, contact area is minimum, the track suction of mover iron core to permanent magnetic material that this material is made greatly reduces, overcome the shortcoming of the iron core of traditional silicon steel chip, substantially increase the performance of cored linear electric motors, improve the cost performance of cored linear electric motors, cored linear electric motors are had more wide application prospect.
Accompanying drawing explanation
Fig. 1 is the side structure schematic diagram of cored linear electric motors of the prior art.
Fig. 2 is the perspective view of novel cored linear electric motors embodiment one of the present invention.
Fig. 3 is the perspective view of novel cored linear electric motors embodiment two of the present invention.
Fig. 4 is the perspective view of novel cored linear electric motors embodiment three of the present invention.
Fig. 5 is the structural representation of servo system for linear motor of the present invention.
Embodiment
As shown in Figure 2, embodiments of the invention one:
A kind of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department; The track be made up of some permanent-magnet stators 2 that described stator department includes stator seat 1 and linearly arranges on this stator seat 1; Described mover portion includes the iron core 3 of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, and this iron core 3 is formed with some yoke grooves 30 with track relative to side, in this yoke groove 30, be wound with polyphase winding winding 32.
Described iron core 3 forms by folding perpendicular to multiple non-crystaline amorphous metal of described track plane or the thin slice of ultramicro-crystal alloy; Described thin slice comprises the main body 31a being parallel to the direction of motion, and by the multiple tooth 31b extended on the downside of described main body 31a, is formed with groove between multiple tooth 31b; Described thin slice is stacked to described iron core 3 mutually.
Described iron core 3 can have aluminium alloy or nonmetal overcoat, and now described polyphase winding winding 32 is wound on described overcoat; Described permanent-magnet stator 2 is made up of non-crystaline amorphous metal, powder non-crystaline amorphous metal or ultramicro-crystal alloy.
As shown in Figure 3, embodiments of the invention two:
The difference of itself and above-described embodiment one is, described thin slice comprises the main body perpendicular to the direction of motion, according to the size of yoke groove 30, is formed with described iron core 3 so that the thin slice of different size is mutually stacked; Concrete scheme is, described thin slice comprise horizontal width identical, the first thin slice 33a of concrete first vertical extension and there is the second thin slice 33b of the second vertical extension, and the first vertical extension is greater than the second vertical extension; Perpendicular to track bearing of trend, between stacked some first thin slice 33a, be provided with stacked some second thin slice 33b.
As shown in Figure 4, embodiments of the invention three:
The difference of itself and above-described embodiment one is, described stator department comprises the first stator department and the second stator department that are symmetricly set in described mover portion upper and lower.
In the present embodiment, stator adopts bilevel permanent magnetic material symmetrical structure, centre is the mover with non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material iron core and polyphase windings coil, can play the effect of offsetting the suction produced between mover, stator, makes motor run more steady.
As shown in Figure 5, embodiments of the invention four:
A kind of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department; The track be made up of some permanent-magnet stators 2 that described stator department includes stator seat 1 and linearly arranges on this stator seat 1; Described mover portion includes the iron core 3 of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, and this iron core 3 is formed with some yoke grooves 30 with track relative to side, in this yoke groove 30, be wound with polyphase winding winding 32; Described iron core 3 is compressing by the powder one of non-crystaline amorphous metal.
For above-mentioned enforcement one, two and three, the present invention proposes the preparation method of the soft magnet core that it adopts, and specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) by alloy sheet punching press obtained for upper step or be cut into preset shape;
3) each alloy sheet is stacked mutually, between with the folded bonding of epoxy resin or insulating heat-conductive silica gel, obtained described soft magnet core.
For above-mentioned enforcement four, the present invention proposes the preparation method two of the soft magnet core that it adopts, and specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) alloy sheet obtained for upper step is ground into powder material, powder material is mixed with adhesive or paste one compressing, obtained described soft magnet core.
The thickness that the non-crystaline amorphous metal of iron core or ultramicro-crystal alloy thin slice generally only have 20-40 micron is formed in the present invention, contact area is minimum, the track suction of mover iron core to permanent magnetic material that this material is made greatly reduces, and overcomes the shortcoming of the iron core of traditional silicon steel chip.
As shown in Figure 5, the present invention proposes the servo system for linear motor in conjunction with above-described embodiment one or two, comprise above-mentioned novel cored linear electric motors, grating scale or Magnetic ruler 4, read head 5, motor driver and controller (motor driver and controller not shown); Described grating scale or Magnetic ruler 4 are arranged on the stator seat of this motor, described read head 5 fixes with the mover portion (comprising mover 31 and mover seat 310) of this motor, and it is relative with described grating scale or Magnetic ruler 4, its signal output part is connected to described controller, and the stator seat 1 of this motor is provided with the line slideway 10 matched with mover portion.
In addition, as the conversion execution mode of the embodiment of the present invention one and two, the present invention also proposes following technical scheme:
A kind of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department, the track be made up of some permanent-magnet stators that described mover portion comprises pedestal and linearly arranges on this pedestal, described stator department includes the iron core of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, this iron core is formed with some yoke grooves with track relative to side, in this yoke groove, be wound with polyphase winding winding.The reverse enforcement structure of this programme and above-described embodiment one or two, with track side for mover portion, iron core side is stator department, therefore does not discuss in detail at this.
Above-mentioned preferred implementation should be considered as illustrating of the application's scheme implementation mode, allly to duplicate with the application's scheme, technology that is approximate or that make based on this is deduced, replaces, improvement etc., all should be considered as the protection range of this patent.
Claims (11)
1. novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department; Described stator department include stator seat and on this stator seat along the direction of motion arrangement the track be made up of some permanent-magnet stators; It is characterized in that: described mover portion includes the iron core of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, this iron core is formed with some yoke grooves with track relative to side, in this yoke groove, be wound with polyphase winding winding.
2. novel cored linear electric motors according to claim 1, is characterized in that: described iron core forms by folding perpendicular to multiple non-crystaline amorphous metal of described track plane or the thin slice of ultramicro-crystal alloy.
3. novel cored linear electric motors according to claim 2, is characterized in that: described thin slice comprises the main body being parallel to the direction of motion, and by the multiple teeth extended on the downside of described main body, are formed with groove between multiple tooth; Described thin slice is stacked to described iron core mutually.
4. novel cored linear electric motors according to claim 2, is characterized in that: described thin slice comprises the main body perpendicular to the direction of motion, according to the size of yoke groove, are formed with described iron core so that the thin slice of different size is mutually stacked.
5. novel cored linear electric motors according to claim 1, is characterized in that: described iron core by non-crystaline amorphous metal powder and mix with adhesive or paste one compressing.
6. the novel cored linear electric motors according to claim 1 to 5 any one, is characterized in that: described stator department comprises the first stator department and the second stator department that are symmetricly set in described mover portion upper and lower.
7. the novel cored linear electric motors according to claim 1 to 5 any one, is characterized in that: described permanent-magnet stator is made up of non-crystaline amorphous metal or ultramicro-crystal alloy material.
8. a preparation method for soft magnet core, specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) by alloy sheet punching press obtained for upper step or be cut into preset shape;
3) each alloy sheet is stacked mutually, between with the folded bonding of epoxy resin or insulating heat-conductive silica gel, obtained described soft magnet core.
9. a preparation method for soft magnet core, specifically comprises as step:
1) fast melt-quenching quench, vapour deposition process, galvanoplastic or solid reaction process is adopted to make alloy sheet the part or all of composition in Fe and Co, Ni, Si, Zn, Mn, Cu, Al, Ni, Mo, Cr, V, Nb, Ta, W, B;
2) alloy sheet obtained for upper step is ground into powder material, powder material is mixed with adhesive or paste one compressing, obtained described soft magnet core.
10. a servo system for linear motor, is characterized in that: comprise the novel cored linear electric motors as described in claim 1-7 any one, grating scale or Magnetic ruler, read head, motor driver and controller; On the stator seat that described grating scale or Magnetic ruler are arranged at this motor or on other support consistent with linear movement direction; The mover portion of described read head and this motor fixes, and it is relative with described grating scale or Magnetic ruler, its signal output part is connected to described controller, the stator seat of this motor is provided with the line slideway matched with mover portion, and is provided with non-crystaline amorphous metal or ultramicro-crystal alloy coating in this line slideway surface.
11. 1 kinds of novel cored linear electric motors, comprise stator department and the mover portion moved relative to described stator department, it is characterized in that: the track be made up of some permanent-magnet stators that described mover portion comprises pedestal and linearly arranges on this pedestal, described stator department includes the iron core of non-crystaline amorphous metal or ultramicro-crystal alloy soft magnetic material, this iron core is formed with some yoke grooves with track relative to side, in this yoke groove, be wound with polyphase winding winding.
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| CN201510435140.6A CN105119463A (en) | 2015-07-22 | 2015-07-22 | Novel core-including linear motor, motor servo system and core preparation method |
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| CN201510435140.6A CN105119463A (en) | 2015-07-22 | 2015-07-22 | Novel core-including linear motor, motor servo system and core preparation method |
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