Secondary part of a linear drive
AssigneeSiemens Aktiengesellschaft
InventorROLF VOLLMER
Life of this patent
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Abstract
A secondary part of a linear drive, in particular of a cylindrical or planar linear drive, has permanent magnets arranged on a soft-magnetic mount in perpendicular relationship to the movement direction of the linear drive. The permanent magnets are curved at least on the surface facing the primary part. The permanent magnets cover each only a predeterminable part of a magnetic pole and have a radial magnetization direction in relation to their outer surface.
Claims17
A secondary part of a linear drive, comprising permanent magnets having at least one curved surface which is in confronting relationship to a primary part, each said permanent magnet covering only a predeterminable part of a magnetic pole, wherein the permanent magnets have a magnetization direction in substantially radial relationship to the curved surface:
A combination direct drive, comprising:
- a cylindrical linear drive having a primary part;
- a shaft forming a secondary part of the linear drive and including permanent magnets having at least one curved surface which is in confronting relationship to the primary part, each said permanent magnet covering only a predeterminable part of a magnetic pole, wherein the permanent magnets have a magnetization direction in substantially radial relationship to the curved side;
- a rotating drive having a primary part and disposed in surrounding relationship to the shaft positioned next to the linear drive and forming a secondary part of the rotating drive.
Dependencies are inferred from the claim text.