| 摘要 |
mechanical engineering. SUBSTANCE: planetary gear has two coaxial screw gears. One of gears has left-hand, while the other, right-hand threads with tooth lead angle exceeding 80 deg. Planetary gear also has two rims secured in body and shaped as nuts rigidly connected to each other and satellite gears attached to carrier and made as two coaxial screw gears. Rims secured in body and screw gears of satellite gears are also provided with left- and right-hand threads corresponding to thread of screw gears. EFFECT: reduced overall dimensions and noise level. 3 dwg
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