problem in technical design.

[bagaroz]

Infinite post, I read almost everything and it seems to me that the level of discussion is even too high for those who are beginning to approach the drawing.
In my opinion, I am a student too, the easiest thing is to start with easy pieces and get the boards corrected by a good professor, and this is the most difficult thing in my opinion. . .

the so decantated comeback, which will also have written a good text, for example often and willingly has some rather imaginative theories on the quotation

 

[Apprendista]

consult the indicated links better, there is everything. .
(and then in your exercise it is written <see the tutorial>>>; don't you have that tutorial? )

greetings
Marco:smile:

there is only one table with size of trees and many other data, but it is not explained how to use them. . .

 

[Apprendista]

hi apprentice (but very willing). :finger:
I think you don't know the difference between a key and a tab. Let's make up for it...and if I can contribute to what friends have already told you
among the most common links between tree is hub to transmit a torque there are keystrokes and tabs. provided that both are not sized but are unified and are chosen according to the diameter of the tree, the practice is to predict that the width, approximately 1/4 of the diameter of the tree. for the length instead, you will have to evaluate the torque moment to transmit. the material with which they are made is generally low-carbon steel and without thermal treatments (except exceptions).
the difference in choice if using a tab or key is in the type of coupling you have to achieve. the stick prevents both rotation and transfer between hub and tree, the tab only prevents rotation.
here:http://www.ingegneria.unical.it/ingegneria/docenti/luchi/lezioni/collegamenti_smont_non_filet.pdffind what I told you.
Say hi.

Thanks :wink:

 

[sampom]

the .. returnincasa .. has quite imaginative theories on the quotation

..type?

greetings
Marco:smile:

 

[davide75]

I also say that in the choice of the tab you have to take into account as well as the torque moment to transmit also the specific pressure to which it is subject.

 

[Fulvio Romano]

I also say that in the choice of the tab you have to take into account as well as the torque moment to transmit also the specific pressure to which it is subject.

attention that apprentice must make a design examination, not construction of machines.
I think the key is already sized (the width is quoted) and the professor wants me to see in the table which corresponds to those odds...

 

[davide75]

Sorry, you're right. I've been reconnected to the fact that it had to pass on the torque moment.

 

[SHIREN]

attention that apprentice must make a design examination, not construction of machines.
I think the key is already sized (the width is quoted) and the professor wants me to see in the table which corresponds to those odds...

Hi.
Maybe if we show him how we do it first
You should explain what the direction of the arrows means in the two sez
for me would go backwards
But as they are put, they would be fine.
see you

 

[davide75]

shiren pero quota 22 of the tab.....

 

[sampom]

Hi.
Maybe if we show him how we do it first
You should explain what the direction of the arrows means in the two sez
for me would go backwards
But as they are put, they would be fine.
see you

shiren pero quota 22 of the tab.....

..yes, very "disputable"; the miller is forced to make a calculation to find the depth and it would be better to avoid it.
then the width of the quarry, the text always goes above the quota line.
ok that is a quick sketch, but if we have to make the "poor boy" understand it is better to post correctly:smile:

then shiren, I think you as well as me begin to see:biggrin:.
I see that quarry from 8 (Language 8x7) and not from 9 (and that I put it? always that cut per key/language is it..).
and also the hole in the head on the left is not threaded, and however in the section does not go "field".
and again:
in the mating at the bottom, that quota 28 to which it refers? more key shaft or the total width of the hole more shattering of the hub?
in any case it would not make sense; if the tree is 26 (I have seen well?) and the tab protrudes 3 the first would go 29mm and the second 29.3 ( øforo+3.3 of the stud).
be careful to give indications to those who are "ignorant" in the matter, also (and above all) for things that seem discounted to us. .
- Yes, sir.

greetings
Marco:smile:

 

[Exatem]

...I did not understand how to deduce the depth of the quarry, I realized that it depends on the size of the wrench (which I discovered to be a parallelepiped that serves for connection to the motor shaft), but I can not districate myself between rules and dimensions. . .

attention that apprentice must make a design examination, not construction of machines.
I think the key is already sized (the width is quoted) and the professor wants me to see in the table which corresponds to those odds...

I thought I understood that the student had difficulty also understanding the function of a stick/language. also in his post, he says he did not understand how to deduce the depth of the quarry. I don't think you can just say "the quarry must be deep x mm."
I understand that starting from scratch is not easy and the notions are so many that you can only generate confusion. . .

 

[Apprendista]

So he's finally getting away when he's deep? xd

 

[sampom]

So he's finally getting away when he's deep? xd

4 mm..

Hello
marco

 

[Exatem]

4 mm..

Hello
marco

Bye-bye
But am I the one who buys me the new baldness or is there something wrong?
according to the one 6607-69/08/09-7511/12 and 7513, b=9mm keys/languages do not exist.
the correct size, considering also the diameter 26 of the tree, are respectively 8x7 (with t=4 as you said), 8x5 and 8x3,5, never 9x acute.
Or not?
Bye.

 

[sampom]

So he's finally getting away when he's deep? xd

4 mm..

Hello
marco

But you could (where?) get there alone, we provided you with all the tools:this is a page of the first links we have reported to you.

greetings
Mar

 

[sampom]

Bye-bye
But am I the one who buys me the new baldness or is there something wrong?
according to the one 6607-69/08/09-7511/12 and 7513, b=9mm keys/languages do not exist.
the correct size, considering also the diameter 26 of the tree, are respectively 8x7 (with t=4 as you said), 8x5 and 8x3,5, never 9x acute.
Or not?
Bye.

Hello, exa.
No, no, you're right.
in fact if you read a little above it is the same thing that I pointed out to the good shiren:biggrin:

greetings
Marco:smile:

 

[SHIREN]

..yes, very "disputable"; the miller is forced to make a calculation to find the depth and it would be better to avoid it.
then the width of the quarry, the text always goes above the quota line.
ok that is a quick sketch, but if we have to make the "poor boy" understand it is better to post correctly

then shiren, I think you as well as me begin to see:biggrin:.
I see that quarry from 8 (Language 8x7) and not from 9 (and that I put it? always that cut per key/language is it..).
and also the hole in the head on the left is not threaded, and however in the section does not go "field".
and again:
in the mating at the bottom, that quota 28 to which it refers? more key shaft or the total width of the hole more shattering of the hub?
in any case it would not make sense; if the tree is 26 (I have seen well?) and the tab protrudes 3 the first would go 29mm and the second 29.3 ( øforo+3.3 of the stud).
be careful to give indications to those who are "ignorant" in the matter, also (and above all) for things that seem discounted to us. .
Oh, my God.

greetings
Marco:smile:

Hi there.
then I guarantee that the hole on the pdf that I downloaded has a double thread line is threaded should not give 6 but m6
for the quota 22 !!!
is the only way to make a miller understand that the mill must descend (2tagli c8%passate in h more or less 0.5mm) from the outer diameter of the 4mm bottle
the price 28!!!! is to indicate that the sum (in sez) between the diameter of the tree and the recessed key must be 28!! ! !

I think my info....
are such as to allow "to the apprentice student to do so to asame:4425::4406:
Thank you very much
p.s.
on pdf key width is 9mm
is not a commercial value
but do it writes that I have to put keystrokes of commercial size
a hug
napoli force and I know you

 

[Apprendista]

But you could (where?) get there alone, we provided you with all the tools:View attachment 11574this is a page of the first links we have reported to you.

greetings
Mar

I couldn't interpret the data well...

 

[sampom]

Hi there.
then I guarantee that the hole on the pdf that I downloaded has a double thread line is threaded should not give 6 but m6..... on pdf key width is 9mm

vabbuò shi..
in the week I have to go to my optical friend; do we make 2 at the price of one? :biggrin:

for the quota 22 !!!
is the only way to make a miller understand that the mill must descend (2tagli c8%passate in h more or less 0.5mm) from the outer diameter of the 4mm bottle

..I prefer to write directly to him those 4mm, from the zeroing on the upper generator to the stop progressing down.

the price 28!!!! is to indicate that the sum (in sez) between the diameter of the tree and the recessed key must be 28!! ! !

On purpose!
but if the diameter of the shaft is 26 and the stick protrudes 3 the sum is 29, isn't it?

napoli force and I know you

and here you have ray:biggrin:

a hug to you!!

greetings
Marco:smile:

 

[sampom]

I couldn't interpret the data well...

See the table? ?

greetings
Mar