Noordel
Mechanical
- Jan 27, 2019
- 3
Hello all!
one other person and I are responsible for designing a silo with two discharge screws at the bottom.
Each screw is supported by the shroud on one end and a spherical roller bearing on the other.
CEMA standards have provided some design guidance for our silo, but one issue we are running into is how to size the spherical roller bearing that will take the thrust load of the screw. We have no idea what thrust load the screw will create.
Might anyone suggest an approach to determine this value?
We have tried to calculate this value by looking at a static setup where the screw is jammed and the motor is at max torque. Given the OD and angle of the flight, and knowing max torque of the motor, we can back out a thrust load using ΣForces=0. This value is insanely high and clearly not realistic.
Any thoughts would be very helpful.
Thank you!
one other person and I are responsible for designing a silo with two discharge screws at the bottom.
Each screw is supported by the shroud on one end and a spherical roller bearing on the other.
CEMA standards have provided some design guidance for our silo, but one issue we are running into is how to size the spherical roller bearing that will take the thrust load of the screw. We have no idea what thrust load the screw will create.
Might anyone suggest an approach to determine this value?
We have tried to calculate this value by looking at a static setup where the screw is jammed and the motor is at max torque. Given the OD and angle of the flight, and knowing max torque of the motor, we can back out a thrust load using ΣForces=0. This value is insanely high and clearly not realistic.
Any thoughts would be very helpful.
Thank you!
