| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of components and assembly manhours, achieve miniaturization and reduction in weight and avoid deterioration in assembly accuracy of a motor-driven actuator. ! SOLUTION: A motor-driven actuator 10 comprises a housing 12 having annular parts 20a, 20b capable of accommodating a pair of motors 26a, 26b and cylindrical parts 22a, 22b capable of accommodating a pair of plungers 78 in a displacement mechanism 16. A control signal from a control circuit 94 accommodated in a substrate accommodating part 46 of the housing 12 is output to each of motors 26a, 26b to press the plunger 78 through a shaft 72, and a hydraulic oil S is supplied to a clutch of a change gear by the plunger 78 to alternately perform clutch operations. Rotation numbers of motors 26a, 26b are detected by a rotation detection sensor 88 in the housing 12, and a displacement amount along an axial direction of the plunger 78 is detected by a stroke detection sensor 90. ! COPYRIGHT: (C)2014,JPO&INPIT |
