Structural design of 2CM-2 high-speed potato planter

To address issues of low operational speed and high seed potato damage rate in China's potato planter, a two-row potato planter suitable for high-speed operation has been designed．A three-point hitch mounting system was adopted for entire machine, with power sourced from a chain transmission system driven by ground wheels．This system has ensured synchronization between seed-metering and fertilizer discharge actions and machine's forward speed．Key working components have included a ploughshare-type furrow opener, a spoon chain seed-metering device, an auger-type fertilizer device, and a disc-type soil-covering device．Prototype has met design requirements such as compact structure, functional coordination, and convenient adjustment, and suitability for high-speed（6～8 km/h）sowing operations．It has fulfilled agronomic demands of high-speed, precision, and low damage in high-yield potato cultivation, and contributed positive significance for enhancing mechanization level of potato cultivation in China．