HARMONIC GEAR AND MOTOR-HARMONIC GEAR ASSEMBLY USING SAME

摘要

Disclosed is a harmonic gear comprising: a wave generator receiving a rotational force from a rotary shaft of a motor to be rotated by interlocking with the rotary shaft, and allowing an outer end from a rotational center to be in contact with an inner surface of a flex spline to press the flex spline outwardly; the flex spline made of a flexible material and installed around the wave generator to allow the inner surface to be in contact with the outer end of the wave generator, and having gear tooth formed on the outer surface; and a circular spline having gear teeth formed on the inner surface to be engaged with the gear teeth of the outer surface of the flex spline, wherein the number of gear teeth of the circular spline is different from that of the flex spline. The circular spline is fixated to be able to rotate with respect to a rotational center thereof and has an output side coupling unit coupled to an output shaft capable of withdrawing output to the outside, and the flex spline is fixated around a central shaft thereof; thereby allowing the circular spline to rotate around the rotary shaft thereof when the wave generator rotates around the rotational shaft. According to the present invention, input and output shafts of the harmonic are able to correspond and put on an identical line, thereby being able to be conveniently installed and used in a place requiring power transmission with a high deceleration rate and an identical rotational direction.;COPYRIGHT KIPO 2018