## 7 Conclusions  
The shaking roller is a key component of the chain drive film-soil separation mechanism, and its shaking action on the chain directly determines the performance of film-soil separation. Through a kinematic analysis of the film-soil separation mechanism, the velocity \(v_{y}\) of the action of the separation mechanism on the mixture in the y-direction can indicate the change in the shaking characteristics and the separation capacity of the separation mechanism. The key parameters affecting the film-soil separation performance of the chain drive film-soil separation mechanism are the chain movement velocity \(v\) and the angle between \(v_{d}\) and the x-axis. A kinematic simulation analysis of the film-soil separation mechanism by ADAMS software provided the motion displacement, velocity, acceleration and trajectory of the chain plate. The derivation of the mechanism in the whole movement process was accurately calculated, as well as its effect on membrane soil separation, which showed that the trajectory of the center of mass of the chain plate link_1 changed in a sine curve during the jittering operation section, which is consistent with the results of the kinematic analysis for the chain drive film-soil separation mechanism.  
Simulation results showed that the chain drive film-soil separation mechanism made use of the flexible characteristics of the chain, and drove the chain to both sides of the excitation point through the excitation of the shaking roller. When the velocity in the y-direction reached the maximum, the displacement along the x-direction decreased to achieve the collision and crushing of the film-soil mixture and facilitated film-soil separation. The mechanism and change of film-soil separation by the chain drive film-soil separation device were revealed, which provided theoretical guidance for the design and optimization of chain drive film-soil separation equipment.  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Parameters** & **Test Value** & **Technical Requirements** \\ \hline Tillage gathering rate/\% & 68 & \(\geq\)65 \\ Surface residual rates/\% & 6 & / \\ Gathering depth/mm & 150 & 100–150 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Performance of the chain drive film soil separation mechanism.  
Our research analyzed and simulated the key components of, and conducted field experiments on, the operational performance of the chain drive film-soil separation equipment. The field test showed that the collection rate of the chain drive film-soil separation mechanism reached 68% when the tillage depth reached 150 mm, and the surface residue reached 6%. The values were 3% higher than the performance index of the industry standard NY/T 1277-2006. All the test indexes met the requirements of national and industry standards, the test results met the design requirements, and the results of field experiments were basically consistent with the results of the simulation analysis. Our research objectives were met.  
Conceptualization, Z.S. and X.Z.; methodology, J.Y. ([PERSON]) and Y.J.; software, Z.S. and Y.J.; validation, Z.S. and X.Z.; formal analysis, Z.S.; investigation, Z.S. and X.Z.; resources, X.Z.; data curation, J.Y. ([PERSON]) and Y.J.; writing--original draft preparation, Z.S.; writing--review and editing, Z.S. and J.Y. ([PERSON]); visualization, Z.S. and J.Y. ([PERSON]); supervision, X.Z.; project administration, Z.S.; funding acquisition, Z.S. and Y.J. All authors have read and agreed to the published version of the manuscript.  
This research was funded by National Natural Science Foundation of China, grant number 52105278. This research was funded by Xinjiang Autonomous REGION tianshan Youth Plan Project of China, grant number 2020Q015. This research was funded by National Key Research and Development Program of China, grant number 2017 YFD0701102.  
Data Availability Statement: Data sharing not applicable.  
The authors declare no conflict of interest.