Abstract
A high-rate reduction ratio is obtained by using two kind of laminated planetary gear systems. One layer's planetary gear system is little difference in tooth number or diameter from opposite layer's planetary gear system. The input rotation is from sun gear and the output is not obtained from planet gear's carrier. The reduction revolution is given by the difference between the most out side two rings of internal gear. The first reduction mechanism of laminate type planetary gear is manufactured in one tooth difference In this case the sun gear exist on only one layer and opposite layer have no sun gear because of its each gears' tooth becomes a prim number. Then the planet gear have to be fixed through both layer and delivered on one earner, so named as perfect and imperfect layer lamination. The prime number tooth planet gear delivered on one earner as perfect layer's planet gear position. This manner requires quite fine tooth generating accuracy. This accuracy accomplishment were so difficult as to reach up to 30 % in the efficiency and the noise diminishing. Therefore the second type of perfect and perfect layer were designed, and manufactured in quite small difference in gear diameter. Here state those possibilities of more advanced thin and light weight reduction mechanism by lamination of two kinds of planetary gear system, and circumference multi v-grooved friction wheel planetary layer system, also in addition clutch mechanism for the output layer simultaneous-alternatively exchanging into rotation and counter-rotation on one way sun gear revolution direction.
Published Version
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