bevel gear help

i've viewed many previous posts on this topic. i also visited the
website on geartechnology
(http://www.geartechnology.com/mag/gt-model.htm). the information is
good, but the instructions must pertain to an older version of pro/e.

i use wildfire 2.0 and need to design a bevel gear, that will mate with
another orthogonally. the assembly might be a killer. generally, im
sure some of you might have come across modeling bevel gears. please
provide a general outline on how to model and things to watch out for
when i assemble the pair.

ron

 

Do you *need* to show the teeth? I would avoid that if at all
possible. We design gearboxes and we always omit the form of the teeth
on the gear drawings and the assembly models.

Dave

 

I agree, on these grounds:
* Mechanisms in Pro/e do gears by ratio. They suggest making cylinders at
pitch diameter which will roll together based on the ratio;
* Accurate gear tooth geometry is useless in Pro/e, a total waste. No matter
what extremes you go to get accurate tooth geometry, Pro/e can do nothing
with it. It does no static stress of gear teeth; it does no dynamic analysis
of gears under stress; and it does no modal analysis of gear harmonics.
These things are passed to other software, and more than likely, from one
specialized gear design software to another gear analysis software. Pro/e
gets involved in this business only from the standpoint of packaging, from
the job of supporting these gears, lubricating and protecting them from the
elements. PRo/e can make the boxes and can capture shaft centers (location,
diameter) but was never meant to do much more than this, CERTAINLY not to
design gears, gear teeth, pressure angles, pitch cone angles (straight tooth
bevel gears), etc., ETC. (this is a HUGE etc, as there is much arcanery
Pro/e could be involved it with respect to gears. But then, wouldn't we be
expecting the release of a module called Pro/GEAR that would capture this
many-faceted arcanery!?!

David Janes