Sprocket drive mechanism with adjustable speed ratio
A sprocket transmission mechanism with adjustable speed ratio, comprising an active sprocket (1) and a follower sprocket (2); said follower sprocket (2) is coaxially connected to a metering roller; characterized in that it also comprises a transition sprocket (3); said transition sprocket (3) is a double sprocket structure comprising coaxially set and solidly connected first transition sprocket (31) and second transition sprocket (32); said first transition sprocket (31) and second transition sprocket (32) have different radial sizes; said first transition sprocket (31) and second transition sprocket (32) are connected to a sprocket by a... The first transition sprocket (31) and the second transition sprocket (32) have different radial dimensions; the driven sprocket (2) is provided with...