초록 ▼

A dual drive ball has a ball screw shaft coupled at one end to a gear train and coupled at the other end to a ball screw nut. The ball screw shaft and ball screw nut are connected through complementary helical grooves filled with ball bearing balls. The outer surface of the ball screw nut is plined

A dual drive ball has a ball screw shaft coupled at one end to a gear train and coupled at the other end to a ball screw nut. The ball screw shaft and ball screw nut are connected through complementary helical grooves filled with ball bearing balls. The outer surface of the ball screw nut is plined and can be driven by a second gear train. An output tube is coupled at one end to the ball screw nut and at its opposite end has a connector portion with a groove on its inner surface. A rod end has a coupling member for coupling to a surface to be actuated and a shaft portion with a groobe on its outer surface. This shaft portion is received with in the outputtube portion and the corresponding grooves are coupled through the use of a plurality of ball bearing balls.

대표청구항 ▼

1. A dual drive ball screw comprising:a ball screw shaft having a first portion with an outer surface adapted for engaging a first rotatable structure and a second portion having a first groove on its outer surface; a ball screw nut having an outer surface adapted for engaging a second rotatable str

1. A dual drive ball screw comprising:a ball screw shaft having a first portion with an outer surface adapted for engaging a first rotatable structure and a second portion having a first groove on its outer surface; a ball screw nut having an outer surface adapted for engaging a second rotatable structure and having a second groove on its inner surface, said ball screw nut receiving said second portion of said ball screw shaft so that said first and second grooves connect through a first plurality of balls; a rod end having a coupling member for attaching to a surface to be actuated and a shaft portion having a third groove on its outer surface; and an output tube coupled at one end to said ball screw nut and at its opposite end having a connector portion having an inner surface with a fourth groove, said connector portion receiving said shaft portion of said rod end so that said third and fourth grooves connect through a second plurality of balls, wherein said connector portion comprises three slots that are offset from one another both axially along, and circumferentially around, said connector, for inserting said second plurality of balls between said third and fourth grooves.