2013 Fiscal Year Final Research Report
Development of combined-type continuous variable transmission with quadric crank chains, one-way clutches and solid-cams
| Project/Area Number |
23560149
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 機構学・機構設計 / 無段変速機 / リンク / カム / トライボロジー |
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| Research Abstract |
In this study, we have developed a new type of continuously variable transmission (L-CVT). The proposed L-CVT consists of a couple of quadric crank chains, one-way clutches and solid-cams. Two identical quadric crank chains are placed symmetrically in the mechanism. Since the proposed mechanism is not based on friction conduction, it provides a mechanism that creates no noise, is durable, and offers high transmission efficiency.
We have designed a plate cam which corresponds to the response of the length of a connecting rod to realize the function of CVT. Then, we installed the plate cam to the L-CVT prototype model. Thus, we have designed a L-CVT with a plate cam in which the synchronization between the rotation of the plate cam and the one of the crank can be taken mechanically. Finally, the behavior of the L-CVT has been confirmed by numerical simulations.
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