Pump rotor for a canned motor pump

Abstract

The invention relates to a pump rotor ( 26 ) for a canned motor pump. The pump rotor ( 26 ) comprises a base body ( 32 ) designed in one piece, with an impeller base disk ( 34 ) and a rotor holder bushing ( 36 ) and a rotor unit ( 40 ) with rotor magnets that are arranged on the rotor holder bushing ( 36 ).

1 . Pump rotor for a canned motor pump, comprising:
 a base body designed in one piece, with an impeller base disk and a rotor holder bushing and   a rotor unit with rotor magnets that are arranged on the rotor holder bushing.   
     
     
         2 . Pump rotor according to  claim 1 , wherein that the invention provides a receiving sleeve integrally embodied with the base body for the rotor unit. 
     
     
         3 . Pump rotor according to  claim 2 , wherein the invention provides a cover for the gastight closure of the rotor unit, said cover particularly being welded or injection molded to the base body. 
     
     
         4 . Pump rotor according to  claim 2 , wherein the receiving sleeve and the rotor unit are positively or non-positively coupled to one another in order to cause a transmission of torque between the rotor unit and the base body. 
     
     
         5 . Pump rotor according to  claim 1 , wherein the rotor unit with the rotor magnets is overmolded with plastic and fitted on the rotor holder bushing. 
     
     
         6 . Pump rotor according to  claim 5 , wherein a collar, which can be welded to the base body, is provided on the overmolded rotor unit. 
     
     
         7 . Pump rotor according to  claim 1 , wherein a blade part is connected to the impeller base disk of the base body using rivet spigots, particularly by means of hot stamping or ultrasonic welding. 
     
     
         8 . Pump rotor according to  claim 1 , wherein a bearing bushing for supporting the pump rotor is disposed on a shaft radially inside of the rotor holder bushing. 
     
     
         9 . Pump rotor according to  claim 8 , wherein the base body is configured as a plastic injection molded part, the bearing bushing being provided as an overmolded insert in the base body.