To weaken and eliminate the polygonal effect of sleeve roller chain transmission, the following methods are usually used:
(1) Shijiazhuang taper hole sprocket manufacturer uses multiple single row chains to mesh with multi row sprockets with staggered teeth to reduce the effect of multiple deformations. Figure 2 shows the variation of horizontal chain speed when three single row chains mesh with three row sprockets with staggered teeth. When this type of chain drive is in operation, its speed variation curve is relatively smooth. The machining method of staggered three row sprockets can be carried out using specialized cutting tools on a gear hobbing machine, with a phase difference of 120 between each row of teeth. ／Z， Guaranteed by a gear hobbing cutter.
(2) Shijiazhuang sprocket manufacturers use additional small pitch chain transmission devices to reduce the effects of multiple deformations. Figure 3 shows the schematic diagram of the mechanism used to reduce the amplitude of horizontal chain speed changes in the conveyor chain. The pitch of conveyor chain 5 in Figure 3 is P. The pitch of transmission chain 4 is P. The driven wheel 2 and the driving wheel 3 of the conveyor chain have the same number of teeth and are installed with the same initial phase angle (i.e., any instantaneous phase angle during the meshing process.=:, angular velocity ∞,=). When the small pitch chain is not increased, the chain speed of the conveyor chain is 180 because the pitch of sprocket 1 is small and the number of teeth is large. ／Z，，，=180。 ／Z， Therefore, this method can replace the severe polygonal effect of large pitch conveyor chains with the weak polygonal effect of multi tooth and small pitch transmission, reducing the instantaneous chain speed change amplitude of the conveyor chain.
(3) The method of using the tight edge length of the chain drive as an integer multiple of the chain link distance (i.e. in phase,=JB) and Z=Z ensures that the instantaneous transmission ratio between the master and slave chains is always equal to 1.