Linear Shaft Motor vs. anderen Linearmotoren Linear Shaft Motor vs. other linear motors. Ihr Partner in der Antriebstechnik

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2 Linear Shaft Motor vs. anderen Linearmotoren Linear Shaft Motor vs. other linear motors Ihr Partner in der Antriebstechnik

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4 Linear Induction Motor (LIM) Linear Pulse Motor (LPM) Linear DC Motor (DCLM) Voice Coil Motor Linear Synchronous Motor (LSM) Flat type, U type, and Cylindrical type With core Coreless --- Linear Shaft Motor 4

5 FORCE (N) 8000 Efficiency 80% F - V Output F-V 定 格 推 力 出 力 効 率 70% 60% % % % % % VELOCITY (m/sec) S605Q Specification Curve 0% 5

6 Einfach Simple Hochpräzisions High precision Kontaktfrei Non-contact 6

7 US Patent 06,040,642 US Patent A 7 Läufer Magneten Spulen Stator

8 Läufer Spulen Magnetischer Fluss u w v u w v u w v N S S N N S S N N S S N u w v u w v u w v Ausfluss Kraft Strom Fleming s law of motion 8

9 Verteilung des Magnetfelds / Magnetic field distribution Simulierte durch FEM Tatsächlich 9

10 Konstruktionsregel für lineare Bewegungen / Linear motion design rule Kraft = Leitungsstrom * magnetische Flussdichte / Force = Current * Magnetic field where F = I x B F = Kraft in Newton - F = forces, measured in Newton's I = Leitungsstrom in Ampere - I = current in wire, measured in amperes B = magnetische Flussdichte in Tesla - B = magnetic field, measured in teslas Temperaturerhöhung / Temperature increase = I 2 (Leitungsstrom/Current ) x R 10

11 Eisenloser Entwurf Coreless design Beruht auf dem Ironless-Prinzip No iron in forcer or shaft Keine Cogging No cogging Steifer Entwurf Stiff design Die zylindrischen Spulen des Stators bilden den Kern. So wird große mech. Steifheit erreicht, wie in einem Motor mit Eisenkern. The coils themselves are the core, thus the stiffness of an iron core design 11

12 Iron Core (Platen & Cylindrical) Kraft Strömung 12

13 13 Coreless (U-förmigen)

14 Linear Shaft Motor Kraft Strömung 14

15 Ein grosser Luftspalt (nominal 0,5 bis 2,5 mm) ist möglich und unkritisch. Large Air Gap 0.5mm to 2.5mm nominal annular air gap (1 to 5mm total) Es treten keine Kraftschwankungen auf, bei Luftspalttoleranzen über dem Arbeitsweg. Non-critical No variation in force as gap varies over stroke of device 15

16 Coil Magnetic Flux Magnets Ineffective use of flux Coil Magnetic Flux Magnets (Coil) Cylindrical type Effective use of flux 16

17 % Iron core Flat ,2 0,4 0,6 0,8 Air gap (mm) Constant Current 17

18 18 Because of the non-contact design, No lubrication No adjustment necessary. Eco-friendly No noise No dust. Energy efficient Very simple setup Simple alignment

19 Vergleich / Comparison Linearmotor Bauform Linear Motor Type Ausgangsleistung Power Output Steifheit Stiffness Anziehungskraft absorption force U-förmig U-Shaped Niedrig / Low Niedrig / Low Keine / None Eisenlos tubular Coreless Cylindrical Linear Shaft Motor Hoch / High Hoch / High Keine / None Cogging Keine / None Keine / None 19

20 Technische Daten von Linearmotoren sind nicht immer vergleichbar. Linear motor specs are not always what they seem. 20

21 Motor: S435Q Maximum velocity: 6.3m/sec Acceleration: 13.5G Payload: 20kg (44lbs) Stroke: 800mm 2 7 Encoder: Heidenhain Resolution: 1µm Driver: Servoland SVDM 40P Guide: LM guide 21

22 V elocity(m m /s) 低 速 送 り ( 8 μ m / Tim e (s) Velocity fluctuation is under 0.01%. Motor: 2-S160T in parallel Maximum velocity: 8 µm/sec Payload: 25kg (55 lbs) Encoder: Heidenhain Resolution: 10 nm Driver: Delta Tau P-Mac Guide: Air bearing 22

23 Motor: S435Q Maximum velocity: 5m/sec Acceleration: 20G Payload: 1.7kg (4 lbs) Mitsutoyo Encoder: Resolution: 0.5 µm Driver: Servoland SVDM 40P Guide: LM guide 23

24 Velocity fluctuation is under 0.006%. Stage: GTX 250 Motor: S200Q Encoder: Heidenhain Velocity: 100mm/sec Resolution: 0.1µm Acceleration: 1G Driver: Servoland SVDM 5P Payload: 25kg (55 lbs) Guide: Air bearing 24

25 [nm] A ACT POS B ACT POS COMAND POS Motor: Payload: Guide: S320D in parallel 25kg (55 lbs) Air bearing [SEC] Encoder: Heidenhain Resolution: 1 nm Driver: Delta Tau P-Mac 25

26 Red line: command velocity Blue line: actual velocity Schleppfehler Der Schleppfehler, ist sehr klein. Der max. Schleppfehler ist unter 100 nm. Following error is very small. Maximum following error is under 100 nm. Stage: GTX 250 Motor: 2-S160T in parallel Maximum Velocity: 3mm/sec Payload: 10kg (22 lbs) Encoder: SONY BS78 TS13 Resolution: 0.14nm Driver: P-Mac U-mac system Guide: Air bearing 26

27 (In comparison to types of linear motion) The ability to use commercially available servo drivers. Higher speeds are able to be achieved while retaining high precision. At the same time, extremely high precision low speed uniformity and high repeatability are possible. Because of the non-contact design, no lubrication or adjustment necessary. Very simple setup and operation time. No need for extended burn in. Simple alignment and QC period. Eco-friendly - no noise, no dust. Energy efficient, - power requirements are lower then that of ball screw systems. 27

28 Größte Kraft / Maximum force N(S1150T) Kleinster Motor / Smallest motor S040D 25x10x10 mm Längster Weg / Longest stroke 4,6 m Größte Geschwindigkeit / Fastest speed 6,3 m/sec Geringste Geschwindigkeit / Slowest speed 8 µm/sec Größte Beschleunigung / Maximum acceleration 20 G Geschwindigkeitsschwankungen / Velocity fluctuation < 0,05% Höchste Auflösung / Finest resolution 70 pm (0,00007 µm) 28

29 German office: Dutch office: