Speed reducer with high reduction ratio

Abstract

The invention discloses a speed reducer with a high reduction ratio. The speed reducer comprises an input shaft, a first cycloidal gear, a first ring gear, a first output set, a second cycloidal gear, a second ring gear and a second output set, the input shaft comprises an input section and a first driving section which is eccentrically arranged, the first cycloid gear is linked by the first driving section, the first ring gear comprises a plurality of first tooth pieces and a first ring piece for pivoting the first tooth pieces, the first output set comprises a plurality of first conduction pieces penetrating through the first cycloid gear, a first output section connected with the first conduction pieces and a second driving section which is eccentrically arranged, the second cycloidal gear is linked by the second driving section, the second ring gear comprises a plurality of second tooth pieces and a second ring piece for pivoting the second tooth pieces, and the second output set comprises a plurality of second conduction pieces penetrating through the second cycloidal gear. Thus a high reduction ratio can be generated, and abrasion can be avoided.

Description

technical field [0001] The invention relates to a reducer, in particular to a reducer with a high reduction ratio. Background technique [0002] refer to figure 1 , a kind of existing reducer, as shown in Japanese Patent Publication No. JP2012026568A (corresponding to Chinese Patent Application Publication No. CN102297245A), comprising an eccentric shaft 11, a fixed gear 12, an eccentric gear 13, and an output gear 14, The eccentric shaft 11 has an input portion 111 and an eccentric portion 112, the fixed gear 12 has a fixed plate 121, and a plurality of first teeth columns 122 fixed on the fixed plate 121, the eccentric gear 13 has a tooth number less than The number of the first toothed column 122 is partly meshed with the eccentric toothed plate 131 inside the first toothed column 122, and an output toothed plate 132 that rotates eccentrically with the eccentric toothed plate 131. The output gear 14 has a plurality of The second gear column 141 engaged with the output g...

AI Technical Summary

Problems solved by technology

[0008] Although figure 2 The reduction effect ratio of this other existing reducer is figure 1 However, the tooth portion 162, the first cycloidal gear 152, and the second eccentric gear 18 of this other existing speed reducer are still affected by friction and are prone to wear

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