coupling rack

[Davide Mattei]

Good morning, first of all wow, the forum is really done as a rule of art.

a very short presentation of me (being the first time I write) and then I pass immediately to the therefore.
are an advanced programmer and user of the office package (which I use for trade), as well as photo and photoshop enthusiast.
I have no experience in mechanics and 3d drawings, but as I am making a small project I began to approach solidworks, by necessity, totally self-taught.
Of course I use it to 1% but let's say that for now, thanks to the many tutorials on the web, I can do what is enough for my purpose (almost ? )

this premise:
the problem on which I planted concerns the coupling of a rack with a straight teeth wheel.
the wheel is dented only by half of its circumference, while the other half is smooth.
Obviously the rack does not notice this (the coupling principle is based on other parameters, certainly not on friction between the teeth) and continues to move even when it is in contact with the smooth half of the wheel.

I hope someone can give me a point to get through this rock.
Thank you

 

[MassiVonWeizen]

allega:
-a drawing with the result to be obtained
-possible files to do without having to rebuild everything with arbitrary parameters

Other info:
Write in the profile the solid version so you know if you can open your files and if you can open those of others.
instead of starting with the tutorials on the network, which you do not know if they are well done) starts with the internal ones of the program.

 

[Davide Mattei]

Thank you. mammals, I immediately added the version of solidworks I'm using between my avatar information.
below an image of the phenomenon previously described:My problem is that the rack moves even when it is in contact with the smooth part of the red wheel while I would like it to move only when it is hooked by the teeth.
attached the .sldasm file.

Thank you for any kind of contribution.
a greeting

 

[MassiVonWeizen]

What do you have to do with it?
A video?
a simulation of how the mechanism connected?
an analysis of forces, loads and the like?

 

[Davide Mattei]

In practice I have to put a spring behind the rack. the operation must be similar to that of a softair gun.
I have to simulate that the spring is compressed by the rack until the rack is hooked by the teeth of the red wheel. when the red wheel loses contact with the rack, this is pushed forward by the spring as a bullet.
then the rack is hung up by the red wheel and the mechanism is repeated.
I must therefore be able to simulate the dynamics of this operation

 

[MassiVonWeizen]

you can also be able to simulate the movement of the rack by setting collisions (in theory) in the movement, but the spring will not be able to see it compress and dilated if not, perhaps, using the motion application.

 

[MassiVonWeizen]

practically this

 

[Davide Mattei]

thank 1000 I immediately study your example

 

[Davide Mattei]

Unfortunately, I think I haven't solved it. the video explains how to realize the animation of the spring but the movement "go up and down" works regardless and is not explained how to realize it?
I tried with the option detects collision but nothing happens

 

[MassiVonWeizen]

the video shows how to create physical simulation with motion. you cannot expect a video of an advanced function to explain all the modeling starting from the bases.
what you want to get you can't do it with collision detection because the spring doesn't change.
First of all, the spring must be created with relations to the other parts so as to be sensitive to changes in the hedge. a spring created without relationships will never change if not changing the values of the part.
so watch some videos of how you build the springs (spring returns more results) and you will surely find that they fit the asses.

 

[MassiVonWeizen]

video creation parametric spring in a set

 

[Davide Mattei]

That's true, too. Well, for now, I keep trying to find an enlightening example. thanks anyway for the passage

 

[scalva]

Bye.
you can work by setting limits to the rack race.

 

[Davide Mattei]

I thought it was the easiest thing to do right now.
Of course, there is no way to explain to the software the question of the semi-dented wheel?
I mean, it certainly exists, it goes to understand which...