| 摘要 |
PURPOSE: A speed increasing device using plural planetary gear units is provided to keep high RPM and increase torque by a rotation acceleration unit installed in the planetary gear unit by dispersing and transmitting power of a power source to each planetary gear unit arranged in parallel. CONSTITUTION: A housing(10) formed like a case stores oil(11). A frame(20) is set up to divide the inside of the housing into left and right parts and bored with fixing holes(21) in the circumferential direction. One end of a first input shaft(30) is extended outward through one side wall of the housing, the other end is rotatively installed in the center of one side of the frame, and a middle portion is mounted with an input gear(31). One end of a final output shaft(40) disposed on a coaxial line of the first input shaft is rotatively installed in the center of the other side of the frame, the other end is extended outward through the other side wall of the housing, and a middle portion is mounted with an output gear(41). Plural planetary gear units(100) comprise an internal gear(110) formed like a ring fitted to the fixing hole of the frame and installed with gear trains on the inner periphery; a sun gear disposed in the center of the internal gear and arranged with a second input shaft(121) in the center; an input transfer gear(122) arranged at one end of the second input shaft of the sun gear to engage with the input gear of the first input shaft; planetary gears(130) engaged between the sun gear and the internal gear, disposed at regular intervals, and mounted with a shaft in the center; a first carrier(140L) combined with one end of the shaft of the planetary gear, disposed at the side of the internal gear to rotate by an orbital motion of the planetary gears, and bored with a shaft combining hole in the center to pass one end of the second input shaft; a second carrier(140R) arranged in the other side of the internal gear to join with the other end of the shaft of the planetary gear and formed with a first output shaft in the center to pass the other end of the second input shaft of the sun gear; and an output transfer gear(151) installed at the first output shaft of the second carrier to engage with the output gear of the final output shaft. The output of the first output shaft of the planetary gear units is transmitted simultaneously to the final output shaft.
|
