Title:
DIFFERENTIAL REDUCTION GEAR
Document Type and Number:
Japanese Patent JP2023131719
Kind Code:
A
Abstract:
To obtain sufficient lubrication performance by enhancing the fluidity of grease.SOLUTION: A different reduction gear 1 includes: a casing 2; an internal gear 6; an input shaft 15 coaxially penetrating the internal gear 6, and having eccentric parts 20A, 20B; external gears 24A, 24B externally fit to the eccentric parts 20A, 20B, inscription-engaged with the internal gear 6, planetary-moving accompanied by the rotation of the input shaft 15, and having a plurality of penetration holes 25 on a concentric circle with an its own axial core as a center; and a carrier 9 having a plurality of carrier pins 11 penetrating the penetration holes 25 of the external gears 24A, 24B in respective eccentric positions, and taking out rotational movement relatively moving with the internal gear 6 accompanied by the planetary-movement of the external gears 24A, 24B. A sealed space S into which grease is filled, and in which the external gears 24A, 24B planetary-move is formed in the casing 2. Then, a grease circulation small penetration hole 26 is formed in a position other than the penetration holes 25 of the external gears 24A, 24B.SELECTED DRAWING: Figure 1
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Inventors:
KOHAMADA SUGURU
Application Number:
JP2022036620A
Publication Date:
September 22, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
NISSEI CORP
International Classes:
F16H1/32; F16H57/04
Attorney, Agent or Firm:
Yoshiki Ishida
Kyouichi Ueda
Kyouichi Ueda