prr electrics

PRRTrainguy posted:

morning, I finally realized that I see, but do not know what a quill drive is, means etc.  

what does a quill drive in the setting of electric motors mean?

thanks in advance for any guidance.

mikeg

Although I have not do the search myself, I would think that Google would have LOTS of information about PRR electric locomotives and their quill drive design.

EDIT,

I just Googled "Quill Drive", and there is a tone of information, especially on the PDD GG1.

Mike:  You might try to obtain a copy of Noel T. Holley's excellent "The Milwaukee Electrics", which has a good narrative and a cross-section drawing of the Milwaukee Road's EP-3 passenger electric quill drive. 

PRRTrainguy posted:

morning, I finally realized that I see, but do not know what a quill drive is, means etc.  

what does a quill drive in the setting of electric motors mean?

thanks in advance for any guidance.

mikeg

The quill is a hollow tube that surrounds each drive axle of the motor trucks. it is driven, in the case of PRR electrics, by two traction motors through a common pinion gear. There are spring cups on the outer edge of the quill which transmit its force to the spokes of the driving wheels.

It is a mechanical drive system that functions to distribute stress as the motor strains to move and accelerate the train.