MRSSPOCK
Mechanical
- Aug 29, 2010
- 303
Does anyone know of a way to minimise the possibility of gears locking in the following scenario.
Imagine a full ratcheted gear attached to a crankshaft. At a specific distance from the crankshaft axis is another gear axis, but this is only a quadrant of a gear, with a return spring. This is used to rotate the crankshaft, and then it is released and springs back to its parked position.
The crankshaft can be stopped at any point of rotation, so the problem arises when the first tooth on the quadrant coincides directly with a tooth on the ratcheted crank gear.
No rotation can be achieved since one gear tooth is pressing squarely on its counterpart tooth. Is there any way to minimise this likelyhood, other than making both of the teeth sets really pointy, and adding some correction to the root to accommodate the pointy teeth? Thanks
Imagine a full ratcheted gear attached to a crankshaft. At a specific distance from the crankshaft axis is another gear axis, but this is only a quadrant of a gear, with a return spring. This is used to rotate the crankshaft, and then it is released and springs back to its parked position.
The crankshaft can be stopped at any point of rotation, so the problem arises when the first tooth on the quadrant coincides directly with a tooth on the ratcheted crank gear.
No rotation can be achieved since one gear tooth is pressing squarely on its counterpart tooth. Is there any way to minimise this likelyhood, other than making both of the teeth sets really pointy, and adding some correction to the root to accommodate the pointy teeth? Thanks