Hi all
We offer rack and pinion presses for sale for the installation of various hunted parts. One of our customers would like to multiply the strength of this press. Apart from the solution of increasing the lever arm, is it possible to increase the force by any other means? Play on the module/number of teeth of the set?
Thank you in advance for the answers you will give me
Hello
For me, in addition to the lever arm, the bigger the diameter of the sprocket the greater the effort will be.
So, increase the number of teeth on the sprocket.
Uh... but isn't that supposed to be your expertise...?
I'm going to look like an old c**, but then, how much is it to monetize for the work done?
If not, yes,
→ increase the Ø of the sprocket (pay attention to the effort required to put it into action at the same time)
→ Increase the number of sprockets
→ Playing with the number of teeth
→ Playing with the shape of teeth
→ Increase your lever arm /!\ to the buckling of it
The current and expected values of effort and the possibilities of modifications should be specified.
Are you a manufacturer or just a distributor?
With constant operator effort:
Hello
A summary static approach:
The balance of the ram shows that the force Fc is also the tangential force on the teeth of the sprocket. As for the balance of the gable and lever assembly, it is expressed by the relationship:
Fu * L = Fc * Rp
or Fc / Fu = L / Rp
The amplification of effort therefore depends on the L/Rp ratio.
To increase it, you need to increase the length L, or reduce the radius Rp of the sprocket.
In both cases, the limits will be quickly reached, and a significant increase in the ratio of effort is hardly conceivable.
For a larger increase, it may be necessary to turn to a linkage system, which can generate considerable effort for certain particular positions. A matter to dig into...
Kind regards
And I will add, provided that the rest of the chassis supports this effort and that it does not crack over time for example.
