Hello all!
I am developing an application where a rope is wound around a reel. The rope is pulled out as far as 100 feet. A quadrature encoder is used to trace the speed of the rope during payout via a cam follower.
The reel is attached to a brushed DC Gearmotor. The application requires that the rope maintain tension the entire time. When the force pulling the rope ceases, the motor should wind the reel back up.
I cannot use a clutch due to complexity and cost for this application.
I cannot use a spring rewind due to the distance of payout.
My plan was to oversize the motor and run it at such a low current and voltage level, that it would be back-drivable, yet maintain tension.
This would also allow the motor to begin retrieving the rope once the payout force is removed.
I am looking for advice on the feasibly of this idea. As well as alternative solutions.
I really appreciate any help or advice you can provide.
Thank You!
-Chuck
I am developing an application where a rope is wound around a reel. The rope is pulled out as far as 100 feet. A quadrature encoder is used to trace the speed of the rope during payout via a cam follower.
The reel is attached to a brushed DC Gearmotor. The application requires that the rope maintain tension the entire time. When the force pulling the rope ceases, the motor should wind the reel back up.
I cannot use a clutch due to complexity and cost for this application.
I cannot use a spring rewind due to the distance of payout.
My plan was to oversize the motor and run it at such a low current and voltage level, that it would be back-drivable, yet maintain tension.
This would also allow the motor to begin retrieving the rope once the payout force is removed.
I am looking for advice on the feasibly of this idea. As well as alternative solutions.
I really appreciate any help or advice you can provide.
Thank You!
-Chuck