force of a barbeque press.

[rinato]

Hello, you can tell me how to calculate the strength of a workshop barbeque press like this:bilanciereAm I wrong if I have to consider the propeller angle of the vine?
because we have a similar one in the department but we do not know how much "bate", even because most times we give him momentum and beats by inertia, rather than accompanied. but beyond a certain speed you can never get it down.

 

[TECNOMODEL]

for me it is impossible to calculate the force that applies because it comes from the one that applies the operator with the arm.

 

[meccanicamg]

the calculation of the force itself is not simple, especially for machines controlled by hand. above all we talk about energy, just read here http://my.liuc.it/matsup/2004/y70750/course technology mechanical - mod.3.7 deformation plastic.pdfor better explained here http://webuser.unicas.it/dweb/gestione/download.php?id=2270clearly the step of the screw and therefore the propeller angle influences the force available in addition to speed.

this is on the forum https://www.cad3d.it/forum1/threads...iastre-in-funzione-coppia-di-serraggio.50949/

 

[meccanicamg]

I'll get you all the formulas that run the system.
assuming that the structure of the press is rigid you have the possibility to test the force of the press using springs and reading the change of height, note the elastic constant.

 

[rinato]

First of all: thank you very much!
2nd light
3rd beautiful handwriting(which is not obvious)
4th now I should find time to make measurements and calculations, however I promise to put on it.

I thought I had to place an oleod cylinder and a pressure gauge to read the pressure peak and calculate the rest, somehow, backwards. perhaps with a spring from strong series molds, or extraforte, it is also easier at this point.

Greetings, reborn.