Dual spindle helical spindle pump with a dual-entry design

摘要

A housing (11) has pump portion (12), bearing portion (13) and gear portion (14). The pump portion has conveyor housing in which screws (17,18) are arranged on shafts (15,16) mounted in bearing portion and extended into gear housing. The holes are formed in fastening element (27) for connecting shaft and gear so that gear and fastening element are rotated against each other and distance of flanges (29) and conveying screws is adjustable. A cover is detachably mounted in opening formed in gear portion so that backlash of screws is adjustable by using necessary tool.