静压技术应用于农业机械方面在我国还是一项新的技术课题。其优点在于,可无级调速,使拖拉机能在较合理的速度下进行工作,操纵简单、方便、省力、能缩短变档时间,提高生产率,发动机的功率能充分发挥,且容易实现拖拉机自动化和综合利用。缺点是与同样等级的齿轮拖拉机比较,一般效率较低,制造成本较高。静液压传动拖拉机的总体布置有多种型式。目前国外批量生产的多是液压变速箱方案,而国内研制的多为单油泵双油马达带最终机械传动和不带最终传动的车轮马达两种 Static pressure technology used in agricultural machinery in our country is still a new technical topics. The advantage is that the stepless speed regulation can make the tractor work at a reasonable speed, the operation is simple, convenient and labor-saving, the time of shifting gears can be shortened, the productivity can be increased, the power of the engine can be fully exerted, and the tractor automation can be easily realized And comprehensive utilization. The disadvantage is that compared with the same level of gear tractor, the general efficiency is lower and the manufacturing cost is higher. There are many types of hydrostatic transmission tractors. At present, mass production in foreign countries is mostly hydraulic transmission solutions, while domestic developed mostly double-oil motor with a single mechanical motor with the final transmission and the final drive of the wheel motor two