Eccentric rocking type gear device

偏心揺動型歯車装置

Abstract

PROBLEM TO BE SOLVED: To suppress the complication of assembling work of a crank shaft.SOLUTION: An eccentric rocking type gear device 1 includes: a crank shaft 10 having eccentric portions 10a and 10b; rocking gears 14 and 16; an outer cylinder 2 having an internal teeth pin 3 engaged with external teeth 14a and 16a of the rocking gears 14 and 16; a carrier 4 having a base portion 5 formed with a crank shaft hole 4e, and an end plate portion 7 formed with a crank shaft hole 7b; a base portion side holding member 31 pressed in the crank shaft hole 4e of the base portion 5; and an end plate portion side holding member 32 pressed in the crank shaft hole 7b of the end plate portion 7. The crank shape 10 is held while axial movement is regulated by the base portion side holding member 31 and the end plate portion side holding member 32.
【課題】クランク軸の組み付け作業が煩雑になることを抑制する。 【解決手段】偏心揺動型歯車装置1は、偏心部10a,10bを有するクランク軸10と、揺動歯車14,16と、揺動歯車14,16の外歯14a,16aと噛み合う内歯ピン3を有する外筒2と、クランク軸孔4eが形成された基部5と、クランク軸孔7bが形成された端板部7とを有するキャリア4と、基部5のクランク軸孔4eに圧入された基部側保持部材31と、端板部7のクランク軸孔7bに圧入された端板部側保持部材32と、を備える。クランク軸10は、基部側保持部材31と端板部側保持部材32とによって軸方向移動が規制された状態で保持されている。 【選択図】図1

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