目前世界上約有20多个国家的100多个公司生产挖掘机。而0.5—4米~3的挖掘机更受到广泛的重視。它发展的历史最久。近几年来,发展的速度快、品种多、产量高;有关这方面的試驗研究也进行得較多;生产技术水平較其他类型挖掘机高,0.5米~3以下已普遍采用液压传动;多数品种均已应用了液力变矩器、液力偶合器和气压操縱等新技术。这里仅就机械传动的0.5—4米~3挖掘机几个主要方面提供一些情况,作为进一步研究国內外中小型挖掘机差距的綫索。由于缺乏更多的調查研究材料,錯誤之处一定很多,請不吝指教。 At present, more than 100 companies in more than 20 countries around the world produce excavators. The 0.5-4m~3 excavator has received more attention. It has the longest history of development. In recent years, the speed of development, variety, and high yields have led to more experimental research in this area; the level of production technology is higher than that of other types of excavators, and hydraulic transmissions have generally been adopted for 0.5 to 3 or less; most varieties New technologies such as torque converters, fluid couplings and pneumatic controls have been applied. Here only some of the major aspects of the mechanical transmission of 0.5-4 meters to 3 excavators to provide some of the situation, as a further study of the gap between domestic and foreign excavators clues. Due to the lack of more investigation and research materials, there are many mistakes. Please feel free to ask for advice.