Analysis of Dynamic Performance for Compound Pendulum Jaw Crusher with Bearing Clearance
Jiang Zhihong
Zhang Chengkun
Abstract：The clearance between the eccentric shaft and the bearing of the movable jaw axle is neglected in previous studies on the dynamic performance of complex pendulum jaw crushers.Aiming to the impact of the bearing clearance on the dynamic performance of complex pendulum jaw crushers,a dynamic model of a com-plex pendulum jaw crusher with bearing clearance is established using the Lagrange multiplier method.Its cor-rectness is verified through experiments,and the effects of different eccentric shaft speeds and clearance values on the dynamic performance of the crusher are analyzed.The results indicate that increasing the eccentric shaft speed and reducing the clearance value can improve the dynamic performance of the crusher,enhance its opera-tional stability,and extend the bearing life.Increasing the eccentric shaft speed can also reduce irregular wear of the bearings.For the PE 150x250 jaw crusher,in order to improve productivity while reducing the impact phe-nomenon within the crusher,a speed of 38 rad/s is considered optimal.
Keywords：Bearing clearanceCompound pendulum jaw crusherImpact forceDynamic property
Publication Date：2024-08-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 134-140 )