Abstract
In the present study, a novel approach to estimating the efficiency of roller chain power transmission systems is proposed based on sliding friction losses and damping force. The dynamics model is taken into account between chain links with lateral offset owing to the derailleur system. Frictional losses were calculated according to Coulomb’s law of friction, and the damping force was dependent on the damping coefficient. The effects of rotational speed, load, derailleur system, and damping coefficient on transmission efficiency were analyzed. The test stand of the roller chain power transmission system was set up to verify the estimated efficiency, and the results showed a good correlation, demonstrating the validity of the chain power transmission efficiency estimation.
Highlights
IntroductionMotorcycles, personal mobility devices,devices, and various industrial equipment since they provide reliable, efficient, and durable power transmission equipment since they provide reliable, efficient, and durable power transmission with relativelywith low relatively Figure
Chain drive efficiencies for different center distances between with an offset approach for estimating chain transmission efficiency, whichsprockets takes into account combined angle
The dynamics model was applied to investigate chain with lateral offset owing to thechain derailleur system
Summary
Motorcycles, personal mobility devices,devices, and various industrial equipment since they provide reliable, efficient, and durable power transmission equipment since they provide reliable, efficient, and durable power transmission with relativelywith low relatively Figure. The transmission efficiency of bush and roller that contacts with the mating sprocket. In the process of power transmission, energy loss occurs due to sliding speed. In the process of power transmission, energy loss occurs due to sliding friction between the pin, friction between pin,during the roller, and the of bush during the rotationin ofthe articulation, vibration the the roller, and thethe bush the rotation articulation, vibration chain spans, impactin when chain spans, impact when the roller engages and disengages with the sprocket, and contacting force the roller engages and disengages with the sprocket, and contacting force between the inner and the between the innerofand outer side plates the shifting.
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