发明授权
- 专利标题: Toroidal-type infinitely variable transmission
- 专利标题(中): 环形无级变速器
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申请号: US404824申请日: 1989-09-08
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公开(公告)号: US5007298A公开(公告)日: 1991-04-16
- 发明人: Hisashi Machida
- 申请人: Hisashi Machida
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Seiko Kabushiki Kaisha
- 当前专利权人: Nippon Seiko Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX63-275073 19881031
- 主分类号: F16H15/38
- IPC分类号: F16H15/38
摘要:
An input shaft of a toroidal-type infinitely variable transmission is supported at opposite ends by respective bearings which are secured to a housing, and input and output disks and power rollers are mounted at an intermediate portion of the input shaft. The input shaft has a flange at one end which is connected to an engine, and a pressure adjusting Belleville washer is interposed between the inner end face of the flange and the outer end face of the bearing to bias the input shaft in the direction of the engine so that a predetermined pressing force is applied to the input and output disks and the power rollers during a period in which a small input torque is transmitted to the input shaft. As the input torque increases, the input shaft is moved axially together with a loading cam against the spring force of the Belleville washer, and the inner end face of the flange and the outer end face of the bearing directly abut each other so that a required reaction force is obtained. In this case, since a needle-shaped roller bearing is interposed between the inner peripheral surface of the bearing adjacent the flange and the outer peripheral surface of the inmput shaft, the sliding movement of the input shaft in the axial direction encounters a small frictional resistance.
公开/授权文献
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