Study on the Influence of Surface Texture Parameters of Oil Production Screw Motor Rotor on the Tribological Properties of Its Friction Pair

By researching the influence of micro-groove texture on surface tribological properties stator and rotor pair oil production hydraulic motors, this paper aims to reduce frictional resistance moment spiral further solve problem difficult restart pump a certain type hydraulic-driven screw pump. According metal-rubber flat plate reciprocating friction model is established, rectangular micro-grooves with different angles depths are machined metal specimen. A combination finite element simulation tests used carry out study parameters performance motor pair. The results showed that at angle, coefficient each specimen basically increases depth. When depth constant, first then decreases increase angle. angle main factor affecting coefficient. Under same test conditions, textured can be reduced by 20.2% compared untextured In contact motor, reduction mechanism mainly transport lubricating medium through improve conditions. Samples reasonable design effectively without reducing service life which conducive smooth system hydraulically driven