Female rotor front end installs screw air compressor of dog additional

The utility model relates to a female rotor front end installs screw air compressor of dog additional, include: the female rotor breathe in end bearing, casing, female rotor and with female rotor engaged with revolution, still include: the arrangement is at female rotor front end dog, the arrangement be with female rotor front end dog cover on the rachis of breathing in of female rotor, the end spiral section terminal surface of breathing in of female rotor is directly hugged closely to its unevenness face of female rotor front end dog, and another smooth surface and female rotor are breathed in the end bearing and is pasted mutually tightly, the female rotor end bearing axial fixity front end dog of breathing in, prevent to rock about the dog is on the rotor, the fixed female rotor of the casing end bearing of breathing in, play the effect of fixed front end dog, revolution son mesh the transmission with the female rotor, to gaseous compress, the beneficial effects of the utility model are that: because the dog is adorned to the end of breathing in at the female rotor, can improve the amount of wind of compressor at to a great extent to reduce the specific power.