关键词: 饲草料收获加工机械, 关键切割部件, 高效率切割, 低功耗切割, 低损伤切割

Abstract: Forage harvesting and processing machinery is of great significance to the development of animal husbandry. By analyzing the current research status and trends of forage harvesting and processing machinery at home and abroad, this paper summarizes the advantages and disadvantages of their development respectively. The results show that compared with foreign countries, China's forage harvesting and processing machinery has a large gap, main reason lies in the low reliability, poor operational effect, and short service life of the key cutting components of domestic machinery, which has become a technical bottleneck restricting the development of Chinas forage harvesting and processing machinery. This paper reviews the research on the materials, application, optimization design of structure and working parameters, and simulation of cutting process of key cutting components. It analyzes the current research achievements of Chinese scholars in these aspects, summarizes the breakthroughs and limitations of the current research on key cutting components, and proposes three research trends for the key cutting components of forage harvesting and processing machinery, namely, high-efficiency cutting, low-power consumption cutting, and low-damage cutting. This has important reference significance for improving the quality of domestic forage harvesting and processing machinery, breaking through the technical bottleneck of key components, and promoting the rapid and efficient development of China's animal husbandry.

Key words: forage harvesting and processing machinery, key cutting components, high-efficiency cutting, low-power cutting, low-damage cutting