Title:
SPEED CHANGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/177933
Kind Code:
A1
Abstract:
A speed changing device (1) comprises an outer-ring component (2), a mandrel (3), a plurality of cam components (5), and a plurality of inner gears (6). At least one outer gear (21) is comprised inside the outer-ring component (2). The mandrel (3) and the at least one inner gear (21) are coaxially and pivotally disposed on the outer-ring component (2). The mandrel (3) is provided with a central axis (30) and a plurality of cam junction portions (31) is disposed on the periphery of the mandrel (3). The plurality of cam components (5) is detachably sleeved on the plurality of cam junction portions (31), synchronously rotates along with the mandrel (3), and at least two of the plurality of cam components (5) has an angle phase difference that is not zero. The plurality of inner gears (6) is made of a rigid material, and is separately sleeved on the plurality of cam components (5) and does not move along with the plurality of cam components (5). The plurality of inner gears (6) engages with part of the at least one outer gear (21).
Inventors:
LIU TE-EN (CN)
Application Number:
PCT/CN2017/080343
Publication Date:
October 19, 2017
Filing Date:
April 13, 2017
Export Citation:
Assignee:
LIU TE-EN (CN)
International Classes:
F16H37/12; F16H57/023
Foreign References:
| CN205534150U | 2016-08-31 | |||
| CN102691771A | 2012-09-26 | |||
| KR20100114331A | 2010-10-25 | |||
| CN203360712U | 2013-12-25 |
Attorney, Agent or Firm:
BEIJING BEIXIN-ZHICHENG INTELLECTUAL PROPERTY AGENT CO., LTD. (CN)
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