Re: Hydraulic Drive

[paul needham <paul.2.needham-at-btconnect.com>]

Frank

this guy has some of the answers ?

http://kowboy1.bananaman.com/modeltank/shultz.htm

http://www.track-link.net/articles/44

but can he be tracked down <G>

regards paul



At 02:33 18/08/2004, you wrote:
>If anyone out there knows something about hydraulics, please give me your 
>opinion on the use of a hydraulic pump (driven by an EV Warrior) to drive 
>hydraulic motors that drive the tracks and cylinders that control elevate 
>and rotate.  I know that hydraulics can pack a lot of power into a small 
>space, but I'd like to know the tradeoffs with regard to weight and 
>battery consumption.
>
>As I see it, one of the benefits of a hydraulic track drive would be that 
>it allows the electric motor to operate efficiently (driving in one 
>direction without abrupt current changes), while providing a variable 
>amount of power to the tracks.  However, I'm not sure if such a hybrid 
>approach would actually save space/weight/energy/maintenance/cost as 
>compared to an all-electric solution.
>
>All comments and suggestions welcome.
>
>         Frank "Is Fluid Power In Our Future?" Pittelli
>
>PS. Joe Sommer, do you have an estimate for the minimal amount of torque 
>needed to drive our tracks competitively?  I know we need about 250 rpms 
>at the drive shaft, but I need to know the torque as well to compare 
>hydraulic motors.