Bull gear & Pinion gear Drive Problem
Dear Seniors.
I have a Bull gear & Pinion gear related problem. This is a practical problem and I am no expert in design or calculations.
A bull gear moves a load of 450MT. This Bull gear is 6m in diameter and is supported on a large ball bearing.
[B]The bull gear is driven by a single pinion with electric drive at single point. [/B]
In due course of time, the bull gear is requiring more torque and I am suspecting the problem is with single driving point of bull gear.
Because I have seen in large slewing crawler cranes the gears are driven by 5 nos of smaller pinion gears.
If we provide 3-4 multiple pinions all around the bull gear(may be in an equispaced way), will it reduce the torque.
If I ask in a straight way,
If all else is okay, is it suggested to drive a large bull gear of 6 m diameter with one single pinion.
Or is it better to distribute the load to 3-4 smaller driving pinions with load/torque sharing.
Which is a the better alternative and Why?
How the claim can be proven with design calculations.
With Best Regards,
Krishna Chaitanya.