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1.引言在机床上装用无级变速器,使机床有可能利用最适宜的速度进行工作,可以大大提高机床的生产率,降低生产成本。在汽车拖拉机方面,若在传动系中采用无级传动,则可极大地改善汽车或拖拉机的动力性和经济性,简化其操纵,并可减低汽缸磨损和滑油消耗(由于在同一汽车或拖拉机的运动速度下可以减低发动机转数)。在苏联,曾从事关于摩擦式无级传动的大量研究工作,其中以创制的环柱面—球面式最有成效,因为它具有效率高而稳定,工作可靠耐磨,载荷振动
1. INTRODUCTION The continuously variable transmission installed on the machine tool makes it possible for the machine tool to work at the most suitable speed, which can greatly improve the productivity of the machine tool and reduce the production cost. In the case of automotive tractors, the use of continuously variable drives in the driveline can greatly improve the power and economy of the car or tractor, simplify its handling and reduce cylinder wear and oil consumption (due to the same car or tractor The speed of the motor can reduce the engine speed). In the Soviet Union, a great deal of work has been done on frictionless continuously variable transmissions, of which the most successful ring-and-sphere type is the most efficient because of its high efficiency and stability, its reliable workability, load-bearing vibration