Conjugate cams are widely used in the beating-up mechanism of modern high-speed rapier looms, and the collision and friction between the cams and rollers significantly impact the service life of the cams. To investigate the relationships among cam rotation speed, clearance collision, and lubrication wear, the conjugate cam beating-up mechanism was selected as the research object. A dynamic model for clearance collision of conjugate cam pairs was established, and cam wear under different working conditions was simulated and calculated based on the Archard adhesion wear model. The research results indicate that as the driving speed increases, the cam impact force also increases accordingly, leading to increased cam wear. Additionally, an increase in cam clearance can raise the peak contact load between the cam and the roller, resulting in an increase in the peak depth of cam wear. By establishing a model and comprehensively analyzing the effects of speed and clearance, important theoretical basis is provided for predicting and enhancing the service life of conjugate cams.
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