New answers tagged gears
0
The classic solution to do this would be to use a key cut into the axle and a keyed gear:
The red Key rests in a slot machined into the axle and corresponds to a slot in the gear. This prevents the gear from slipping around the axle, but needs other features (like a snap ring) to prevent sliding along the axle's rotational axis.
The gear in the machine you ...
0
If you want a simple fix and the internal splines of the gear itself and the external mating surface of the drive shaft are okay, not stripped, and the only issue you are having is movement "along the drive shaft", then putting some hose clamps on the shaft snug up against the gear and clipping off the excess should work to keep it in its ...
1
Planetary gear? Both shafts will rotate at a different speed / transmit a different torque, depending on what you're after.
Electric drills often use these gearboxes if they have multiple speeds.
1
No.
You cannot increase both torque and speed without adding more energy to a system. In a gear train/belt & pulley combo, you have one member rotating slower but with higher torque and the other faster but with lower torque. You would need an outside power source to further increase the speed or torque beyond what you input, per the conservation of ...
1
A simple machine is what you're referring to. A simple machine turns motion into mechanical advantage. Examples include:
lever
inclined plane
pulleys
wheel & axle
gears
inclined plane/wedge/screw
These machines convert extra motion or rotation into mechanical advantage so that the same work can be done with less applied force.
1
Ok I think I understand the intention now. Here is a thought of how to do it with timing belts. 6 half axles and 2 common shafts M1 and M2.
All 6 half axles would all need to be horizontally adjustable to tension the 6 belts. Everything could mount to "2D" vertically oriented sheet metal or laser cut parts, and the same shafts, bearings, and ...
1
There are several possibilities depending on what it is you are trying to achieve with your motors.
As Pete pointed out, just syncing all your wheels would KEEP things the same phase (180 deg) apart.
Next up: the thing your diagram seems to represent - two sets where two outer 'wheels' and the middle 'wheel' of the opposite side are in sync. This allows you ...
1
The pitch line velocities (tangent velocity at the pitch diameter) are the same for both gears in mesh. If they weren't you would have the tooth of one gear traveling through the tooth of the other gear. At the point of contact the pitch line velocities and the forces exerted are equal, thus you have no change in power.
As for the derivation of your ...
1
It really depends on what your application requires. Sometimes the optimal layout isn't feasible so you have to use what is. But here are some general rules of thumb to add on to NMech's answer:
Typical maximum ratio is 5:1 or less for parallel axis spur gears. If your gear radius of curvature is significantly greater than your pinion, you'll have ...
0
Late to the party...
a simpler alternate solution to planetary gearsets is available for coaxial input/output if you don't care about symmetry around the drive shaft. it's used in some tower clocks.
The solution is to choose tooth counts that yield the same sum between two sets of pinions and wheels (which will have equivalent radius sums) across 3 axles (...
3
I think you've most criteria covered for the case you are considering in your post. The only criterion I haven't seen is wear and tear.
Regarding wear and tear there are mainly the following considerations:
the first is that the smaller gear should not have less than 11 teeth under any circumstances (preferably not less that 14 if possible). Usually 17 ...
1
tl;dr Not exactly.
Your face gear tooth space and pitch would need to match your pinion tooth, which is a constant thickness. The problem is you need that constant space width at multiple radii on the face gear. But if your pitch is fine enough on a large enough radius on the face gear that difference gets smaller. You could use "straight" face ...
Top 50 recent answers are included
