脱粒滚筒的转速是影响联合收割机工作质量的主要因素之一,它不仅影响联合收割机的脱粒质量,而且也直接影响联合收割机的分离和清选效果。联合收割机上脱粒滚筒的转速都为可调整的,以便联合收割机能更好地适应不同作物、不同品种、不同收获条件的要求。过去国产联合收割机上的脱粒滚筒虽装有变速装置,但 The revolving speed of the barrel is one of the main factors affecting the working quality of the combine harvester. It not only affects the threshing quality of the combine, but also directly affects the separation and the cleaning effect of the combine harvester. The revolving speed of the threshing drum on the combine harvester can be adjusted so that the combine harvester can better adapt to the requirements of different crops, different varieties and different harvesting conditions. Past the domestic combine harvester threshing drum, although equipped with variable speed devices, but