|Study on Forces Transmitting Between Pulleys and Blocks of a Block-Type CVT Belt
|Toru Fujii, Takayuki Kusano, Mitsuhiko Takahashi, Takafumi Kiji
|Society of Automotive Engineers, 2002
The purpose of this paper is to analyze the force distribution between pulleys and blocks of a newly developed CVT belt. Three components of the force (transmitting force, normal force and frictional force) were measured directly using a newly devised pulley. The experimental results reveal that the transmitting force distribution on the driving pulley is similar to that on the driven pulley as long as blocks do not slip while the distribution of the normal force component for both pulleys does not resemble each other as well as the distribution of friction force in the radial direction of the pulley. It is also found that no idle arc exists in the contact arc of both driven and driving pulleys even in the case that the transmitting torque is low.