余摆线真空泵泵腔与转子型线的形成,是由固定在泵体上的小齿轮和转子上的内齿围相互无侧隙啮合而成。实际上,泵在运转工作时,考虑温升和齿侧间隙间的润滑,内齿圈和小齿轮齿面间必须留有一定的齿侧间隙。此侧隙由图1不难看出,会影响转子与泵腔型线间的相互啮合,即影响两者运转时 Trochoidal vacuum pump chamber and the formation of the rotor line is fixed on the pump body by the small gear and the rotor on the inner circumference of each other without backlash meshing made. In fact, the pump in operation, taking into account the temperature rise and tooth-side clearance between the lubrication, the ring gear and pinion tooth surface must have a certain tooth-side clearance. The backlash is not difficult to see from Figure 1, will affect the rotor and the pump cavity profile intermeshing, which affect the operation of the two