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丘陵地区地形、地貌复杂,地块小,土壤类型多样,水、旱田并存,多无机耕道相连等客观条件,制约了耕作机械的发展。我国南方水田地区先后推出的几种水田耕作机械,大都不同程度地存在着功能单一,结构复杂,整机较重,田间转移困难等缺陷,其主要矛盾在于行走与耕作部件分离。四川威远县大华微型水耕机厂、县农机局等有关单位和部门,经过多年探索研究,研制了Ⅰ、Ⅱ、Ⅲ三种型号双轴差距螺旋水耕机,至1990年9月底合计生产了近2000台,得到用户普遍好评。耕作机应用“差距螺旋体”,以几何形状差代替两处速差传动,实现一种传动部件,完成旋耕、行走双重作用。这种耕作
The hilly terrain, complex landscape, small plots, diverse soil types, coexistence of water and dry fields, and more inorganic farming roads connected to the objective conditions that have restricted the development of farming machinery. Several paddy field tillage machines that have been launched in paddy fields in southern China have defects such as single function, complex structure, heavy machine and difficult field transfer in most of the areas. The main contradiction lies in the separation of tillage and tillage components. Sichuan Weiyuan Dahua miniature hydroponic plant, County Agricultural Machinery Bureau and other relevant units and departments, after years of exploration and research, developed Ⅰ, Ⅱ, Ⅲ three types of biaxial gap spiral hydropneumatic machine, to the end of September 1990 total Produced nearly 2,000 units, users receive universal praise. Tilling machine application “Gap Spiral” to poor geometric shape instead of two differential transmission, to achieve a transmission components, complete rotary tilling, walking dual role. This farming