关键词: 谷物联合收获机, 割台, 控制系统, 智能化

Abstract: The agricultural mechanization technology in China continues to progress.The use rate of grain combine harvesters continues to increase.As an important device of the harvester, the cutting table has a significant impact on the quality of the harvest. However, the traditional harvesters in China have obvious defects in the intelligent control of the cutting table in the harvesting operation, resulting in high cutting table losses in practice, which seriously limits the development of highefficiency and lowloss harvesters. It is necessary to improve the level of research in cutting table intelligence to reduce cutting table losses. The research on intelligent control of cutting table profiling and height, key components, and the overall motion parameters of the cutting table are reviewed in relation to the structure and working principle of the cutting table. The advantages and shortcomings of different control methods, measurement methods, algorithms, and control approaches are compared and analyzed in order to reduce cutting table losses caused by the harvesting posture of the cutting table and to improve the response speed and realtime control of cutting table profiling and height control. To reduce the loss of the cutting table caused by the motion state of key components, the components and development of the key components of the cutting table and the overall control system are classified and summarized. At the same time, the shortcomings of the current domestic research on cutting table intelligence are summarised, and the research development trend of the adaptive cutting table for combine harvesters is described, with a view to providing a reference for optimizing the structure of the cutting table, reducing cutting table losses and improving the intelligence level of grain combine harvesters.

Key words: grain combine harvester, cutting table, control system, intellectualization