The large scale folding split screen can be folded and placed on the van vehicle and unfolded when it needs to be used. The LCD screen consists of multiple little screens and is fixed on the frame which can be folded,so it needs the frame to have sufficient rigidity. For this purpose, a twogradefolding mechanism with electric cylinders was designed to satisfy the synchronized folding and unfolding. A four cylinders synchronous motion control strategy was also developed. In the strategy,multi-segment small displacement synchronous motion was used to achieve the whole distance synchronous motion control. This method can achieve better synchronous control precision in the case of the displacement sensors are difficult to install. Verified by use, this method is proved to be concise and effective, with better control precision and reliability.
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何刘宇,卢绍伟,纪文明.大型折叠式屏幕多电动缸同步展收控制技术[J].机床与液压,2018,46(2):118-121. . The Synchronous Unfolding and Folding Control Technology Based on the Multiple Electric Cylinders for Large Scale Folding Split Screen[J]. Machine Tool & Hydraulics,2018,46(2):118-121