Invention Application
US20090160283A1 Rotary/linear Drive with a Rotary Drive which is Free of Axial Forces 审中-公开
带旋转驱动器的旋转/线性驱动器,不含轴向力

Rotary/linear Drive with a Rotary Drive which is Free of Axial Forces
Abstract:
The aim of the invention is to provide a linear rotation drive wherein the oscillating torques are reduced to a minimum and whose rotation drive is devoid of axial forces. For this purpose, a magnet of the linear rotation drive is provided with sloped sections or a plurality of magnet sections is configured to give at least two sloped magnet arrangements which are symmetric to a line extending in the circumferential direction of the linear rotation drive. Oscillating torques can also be avoided by distributing the magnets across the circumference of the rotor or stator in an uneven manner. Favorable results can be obtained when the least common multiple of the number of grooves and the number of poles is as high as possible.
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