interpretation section hub for model cad

[marcoevolution]

Hello I have problems interpreting those (I hypothesize that they are) breeds of pulley (and those two central vertical lines to the races what are they?) to model the piece in cad... what can help me? ?

 

[MassiVonWeizen]

more than a cat section post I would say it is from section https://www.cad3d.it/forum1/forums/studenti-ingegneria-meccanica.108/ (do not open another post, the moderators will think about moving this if they think it is necessary).
said this if in the image you indicated the objects of your doubts make your message clearer.
is a classic example of cylindrical details that therefore do not require, for a summary representation, further views. in the section indicated above that exercise there is definitely.

 

[marcoevolution]

the exercise I have to carry out consists in the representation of the hub through top-down modeling: said that for the rules of the technical drawing the pulley races never occur (I have identified the part highlighted in red as a breed of pulley), if it is just races, then I can not understand what the part highlighted in yellow: to make it short I can't make a general idea of the piece to realize, what can help me?

 

[MassiVonWeizen]

and those two lines vertical central to the races what are they?

Let's go well, I'll give you some clarity on the terms: are horizontal and generous perpendicular to those you hypothesize to be races, but they are called ribs.
those lines could be rigging of ribbing, which you can only understand with a side view. I attach an image made in exemplary speed

 

[marcoevolution]

Thanks for the terminological clarification (which clearly affects the concept of the piece), if I have understood correctly, could it be assumed that the piece that I am modeling is a possible turbine?

 

[MassiVonWeizen]

Can you imagine that the piece you find me modeling is a possible turbine?

based on what reasoning did you come to this conclusion?
for me it's a normal pulley with stiffening ribs.
being particular that are normally made by fusion need corners of sform; that rastremazione is precisely a corner of disform as are the inclination of the inner diameter (even if you see little) and external of the lightening (the one where the rib is placed) of the pulley.
these things must be asked to teachers who are paid specifically to teach, explain and fill the gaps of students; he takes a draft of the work and discusses it by argumenting and asking for clarification

 

[MassiVonWeizen]

here is an image of how it could be appropriously

 

[marcoevolution]

Thank you for your help! !

 

[meccanicamg]

I would say it is not a pulley but a wheel with two lips for transport on track.
Surely the melting wheel will have ribs such as races and these are those that are seen not dissected.

 

[MassiVonWeizen]

I would say it is not a pulley but a wheel with two lips for transport on track.

Right. I focused on ribs looking very carefully at the rest of the design in which the shape of the track is evident