<p>A biaxial electromagnetic actuator for a materials testing apparatus comprises a first electromagnetic actuator for imparting a linear force to an output shaft and a second, direct drive electromagnetic actuator for imparting a rotational force to the shaft. The shaft is mounted in two combination bearings which permit the shaft to move axially and rotationally. One of the bearings is located within a hollow cylindrical member which constitutes the armature of the direct drive actuator in order to provide a compact and symmetrical arrangement.</p>
申请公布号
WO2009109935(A3)
申请公布日期
2010.02.04
申请号
WO2009IB50911
申请日期
2009.03.05
申请人
ITW LIMITED;HAYFORD, PAUL;MEAD, GRAHAM;JEPPESEN, BENJAMIN;BACHMANN, THOMAS;SCHERER, CHRISTOPH;MAIER, THOMAS
发明人
HAYFORD, PAUL;MEAD, GRAHAM;JEPPESEN, BENJAMIN;BACHMANN, THOMAS;SCHERER, CHRISTOPH;MAIER, THOMAS