한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제10권3호
  • /
  • Pages.218-226
  • /
  • 2002
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

트랙터용 토로이달식 무단변속기 개발(1): 변속기 메커니즘

Development of Toroidal Type Continuously Variable-Speed Transmission for Agricultural Tractor(1): Transmission Mechanism

  • 발행 : 2002.05.01
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초록

This study was carried out to develop continuously variable-speed transmission(CVT) fur an agricultural tractor. The full-toroidal variator mechanism with flour discs and six rollers was utilized as a device fur changing speed ratio continuously. In system layout design, the sizes of the roller cylinders and the end-load cylinder, which were critical factors for controlling the variator, were designed. The planetary gear unit and six pairs of the gear assemblies were designed to establish the maximum speed of the vehicle at 30 ㎞/hr. In addition, the hydraulic clutch, the silent chain, the hydraulic manifold and the electronic controller were designed. Based on the design, a prototype CVT was developed and tested. Test results show that the CVT developed in this study could successfully provide variable speed of the tractor.

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참고문헌

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