The present application provides a kind of vertical steering
cam mechanism and profile curve generation method, belong to
logistics automation technical field.For the problems of large
pressure angle fluctuation, significant dynamic
impact, design dependent experience and poor adaptability of high speed and
high load of existing shuttle car vertical steering mechanism, the present application adopts
kinematics reverse method, by constructing
mathematical model, establishes global and
cam motion coordinate
system, sets rotation ratio n, guide rod length L and other parameters, analyzes
cam-follower
relative motion (coordinate translation and rotation transformation), generates cam groove track
point cloud, calculates and controls
pressure angle (
peak value ≤45 °), completes optimization
verification by combining three-
dimensional modeling and dynamics
simulation, realizes the accurate design of cam groove profile curve.The present application can make the shuttle car follower complete 90 ° steering stably, effectively inhibit the self-locking and dynamic
impact of mechanism, shorten the
design cycle, improve the operation reliability under high speed and
high load working condition, meet the frequent vertical steering demand of automatic warehouse shuttle car.