1. Structure description 2XZ rotary vane vacuum pump is a two-stage direct-connecting rotary vane vacuum pump (hereinafter referred to as pump). The pumping principle is the same as the 2X pump. It has two rotors eccentrically installed in the rotor slot in the stator cavity. When the rotor drives the rotary blade to rotate, the rotary blade clings to the cylinder wall by centrifugal force and the elastic force of the rotary blade spring, separates the inlet and exhaust ports, and makes the volume of the air cavity expand periodically to inhale
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