| The mechanization for harvesting rice crop products is very important in our country, a large agricultural country. The combine is one of main tools to achieve mechanization for harvesting rice crop product. In southern mountainous area and hilly area, the micro and mini combines play important role for harvesting grain products. So it is worth to study the mini combine.In this paper, some existing problems with using combines in southern mountainous area and hilly area were analyzed. And the eccentric poking grain wheel, reciprocating cutter and the energy consumption of the thresher of the combine have been researched deeply. A 4LB—0.7 half-feed-carrier combine with self-copyright for grain crop has also been studied.Firstly, the three parts of the combine, cutting, transporting and threshing parts, were simplified into account by adopting special half feed carrier threshing style, and largely simplified the structure of the combine, thereby make it become micro and mini.The largely improvement has been done in the clamp and transport of the crop poles, make the transport chains of clamping and threshing simplified into one chain, the clamp and transport become much more smoothly, the fault has been reduced prominently and the work efficiency has also a great improvement.The working energy consumption can be reduced and the cleaning quotient of crop can be largely improved by adopting multi head and differing distance for helix in the threshing roller.The experiment results showed that the target aim of 4LB — 0.7 half-feed-carrier combine have been reached or even exceeded the national criterion. The product has gained the state patent. |