Meshing with lantern pinions – Part B

[Sam StonesParticipant @samstones42903]

As a convenience, here is roughly where Thread Part A ended

To conclude, perhaps I should have carried the exercise to include deepening the meshing, i.e. crossing over the two PCD’s. However, I’m inclined to think that the results would be fairly obvious in that the teeth/leaves/pins would soon clash.

Unlike the previous exercise where contact of wheel teeth and pinion leaf flanks produced slight changes of contact traces (especially the ‘On centreline and 0.1mm offset), the round pins of the lantern produced smooth curves. Similarly, as here …

… the cross-overs of the pressure angles are less severe.

Finally, and despite my own luck, only slight changes in depth from the theoretical (i.e. less than 1.0mm) suggest that depthing, at these sizes in particular, needs to proceed with extra care. No doubt for those with depthing experience, you will recognise how the meshing behaves. Too deep and there will be a gnashing of teeth? Too shallow, more gnashing?

Links to both albums are here …

Meshing with Cycloids

https://www.model-engineer.co.uk/albums/member_album.asp?a=50467

Meshing with Lantern pinions

https://www.model-engineer.co.uk/albums/member_album.asp?a=50528

Thanks for everyone who helped.

Sam

Apologies if this mesh came unstuck.

[Sam StonesParticipant @samstones42903]

Due to my zealous output, I have been ‘advised’ to split the original thread.

[Michael GilliganParticipant @michaelgilligan61133]

Blessed are the Lantern Pinions … for they follow the true path

MichaelG.

[Sam StonesParticipant @samstones42903]

Where would I be without your help Michael?

Sam

I've removed my dark glasses, and can hear much better.

[Author]

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