Research on dynamic and vibration behaviors of a flip-flow screen with crankshaft-link structure

Abstract

A flip-flow screen with crankshaft-link structure (FFSCLS) is an effective solution for screening of high-water and fine materials due to its good performance. The dynamical characteristics largely affects the screen performance and the processing capacity of the FFSCLS. In this paper, a dynamic model governing the dynamical characteristics of the FFSCLS was proposed. In addition, the motion trajectory and vibration data of the FFSCLS were investigated by vibration experimental technology. The results show that the experiment results can be fully described by the dynamic model whit the maximum deviation was within 6.26 %. Moreover, the mass ratio between outer box and inner box determined the dynamical characteristics of the flip-flow screen, and these parameters should be optimized. This work can provide useful references for efficient operation and optimal design for the flip-flow screen.

Dynamical characteristics of flip-flow screen with crankshaft-link structure and mechanical analysis

“…The experiment was conducted in Ref. [27]. It can be seen from the Table 2 that the experimental results and MATLAB/Simulink results of the FFSCLS dynamical characteristics have a strong consistency.…”

“…The displacement of the outer screen box screen box 𝑋 and the displacement of the inner screen box 𝑋 , the velocity of the outer and inner screen box (𝑋 , 𝑋 ), the acceleration of the outer and inner screen box (𝑋 , 𝑋 ) can be written as Eq. (7-8) [27]:…”