kallileo
Lifetime Supporting Member
We have tasked with developing a crowd/backing gate for a dairy where cows need to be gently pushed from waiting area into the milking parlor.
The hanging pusher moves on rails and pushes the cows from behind.
The pusher will be moved by a 1hp, 4 pole, 1400 rpm motor with 1/80 reducer. So the movement of the pusher is slow and should be gentle in order not to stress or hurt the cows.
We need to find a way stop the pusher/backing gate if there is too resistance from the cows.
One possible solution could be a hardware torque limiter installed on the motor.
So the question is if it's possible to use the VFD which will drive the motor to stop the gate when certain level of resistance is reached and then after a small period of time to be able to continue moving forward?
Something like in the video below at 4:33.
https://www.youtube.com/watch?v=x0pwNhWzrS4
The hanging pusher moves on rails and pushes the cows from behind.
The pusher will be moved by a 1hp, 4 pole, 1400 rpm motor with 1/80 reducer. So the movement of the pusher is slow and should be gentle in order not to stress or hurt the cows.
We need to find a way stop the pusher/backing gate if there is too resistance from the cows.
One possible solution could be a hardware torque limiter installed on the motor.
So the question is if it's possible to use the VFD which will drive the motor to stop the gate when certain level of resistance is reached and then after a small period of time to be able to continue moving forward?
Something like in the video below at 4:33.
https://www.youtube.com/watch?v=x0pwNhWzrS4