Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (3): 361-366.DOI: 10.12068/j.issn.1005-3026.2020.03.011

• Mechanical Engineering • Previous Articles     Next Articles

Research on the Dynamic Characteristics of Metal Chain Continuously Variable Transmission

ZHANG Lei, ZHAO Xin   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2019-05-13 Revised:2019-05-13 Online:2020-03-15 Published:2020-04-10
  • Contact: ZHANG Lei
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Abstract: The transmission mechanism and axial compression principle of the V-shaped structure of the metal chain continuously variable transmission (CVT) were studied in depth. By studying the relationship of clamping force and thrust for the cone disk, the mathematical model of dynamic characteristics were established, the theoretical loading curve of the compression mechanism was derived and simulated, and the experiment of corresponding dynamic characteristics was carried out to obtain the thrust ratio. It was concluded that the change rate of speed ratios has a negative effect on the acceleration of the vehicle, and the thrust ratio cannot be completely relied on to adjust the speed ratio. The relationship between the thrust ratio and the speed ratio at high and low chain speeds is slightly different. Thus, it may lay a foundation for the development of reliable axial clamping force control structure and system.

Key words: chain CVT, dynamic characteristics, thrust ratio, mathematical model, experimental analysis

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