exercise - drawing of machines (reducer)

[PierArg]

then as mixed I can put great on tapered rollers.thanks for the answers.

if you only need from the educational point of view, I would say that you are careful that in reality you have to take into account two very important things:
- swallowing
- costs

all would like to be able to use roller bearings in any application and at the cost of the single ball bearing. I can tell you that where I work we are reviewing the bearings because they come to affect even 15% of the final product.

 

[Snow32]

mechanical carmg, place because useful to all.

How's this quotation going? useless are denied:

 

[PierArg]

mechanical carmg, place because useful to all.

How's this quotation going? useless are denied:
http://nobody32.interfree.it/immagine.png

Hi, I'd say you could improve... and a lot.

the first thing you have to do is go and see on the textbook the chapter of the quotation. without thinking that "you are denied" because if you go with self-obstructive prejudice your learning.

I can tell you that I came out of the science school that I didn't even know how to keep the teams in hand and then I graduated without problems.

as already explained mechanicalmg you have to quote as if you had to realize it. Put yourself in the shoes of a turner... if you don't know how the turning works exactly you can see on youtube.
see this:

 

[PierArg]

try to see here too:
http://www.youtube.com/watch?v=moft-brvbu4&feature=related
http://www.youtube.com/watch?v=kwfllfese4e&feature=related
http://www.youtube.com/watch?v=9usyjoutpnk&feature=related

 

[Snow32]

I look at all the videos and I answer thank you!

 

[Snow32]

Thank you so much for your patience, I looked at them all carefully. basically in my case I think that the piece in the part that I have to quote is worked from left to right (not in reality, but as my design is put. I know that in reality it must be turned to be worked from right to left) with the removal of all the material to diameter 30 until the pinion, then with the removal of all the material to diameter 20, then with the one to diameter 15. the lathe then "turn" to make the reduction of diameter between the two diameters 20. then proceed to the realization of the gorges and the bevels. Right?

 

[meccanicamg]

Thank you so much for your patience, I looked at them all carefully. basically in my case I think that the piece in the part that I have to quote is worked from left to right (not in reality, but as my design is put. I know that in reality it must be turned to be worked from right to left) with the removal of all the material to diameter 30 until the pinion, then with the removal of all the material to diameter 20, then with the one to diameter 15. the lathe then "turn" to make the reduction of diameter between the two diameters 20. then proceed to the realization of the gorges and the bevels. Right?

So? Do you draw the steps from the rough?

What shall I take to make the piece? and the toothed wheel how big is it? how do I turn the wheel part back before being put on the milling machine and dentate? Is the tab long to suit and randomly positioned? Where is the seat of the security rosette? What quotas do you put in brackets? what are indispensable? dimensional and geometric tolerances? wheel parameters? roughness?

 

[snaroz]

Hey, can you tell me something? How do I know what is the angle of foot, head, primitive of the conical wheel of the pinion? I know only the primitive diameter, the module and the number of teeth. How do I calculate these values? are important, otherwise the design of the wheel is packed. . .

 

[PierArg]

Hey, can you tell me something? How do I know what is the angle of foot, head, primitive of the conical wheel of the pinion? I know only the primitive diameter, the module and the number of teeth. How do I calculate these values? are important, otherwise the design of the wheel is packed. . .

Hello, have you ever heard of addendum and dedendum?
with these you find the circumference of head and foot. everything else is tabled and is function of z, p, dp

if you have a canteen you are perfect....but you also need your industrial technical drawing textbook

 

[MBT]

then as mixed I can put great on tapered rollers.thanks for the answers.

if you only need from the educational point of view, I would say that you are careful that in reality you have to take into account two very important things:
- swallowing
- costs

all would like to be able to use roller bearings in any application and at the cost of the single ball bearing. I can tell you that where I work we are reviewing the bearings because they come to affect even 15% of the final product.

Very true!

some bearings, by browsing the catalog, may seem redundant or useless. in reality every type has its own because of existence. costs and encumbrance are two important factors, but it must also be taken into account ease of assembly, possibility of adjustment, possibility of accepting detachments or disalignments, possibility of mounting seals, admissible speeds. . .

 

[snaroz]

but only about cylindrical teeth.

 

[meccanicamg]

Hey, can you tell me something? How do I know what is the angle of foot, head, primitive of the conical wheel of the pinion? I know only the primitive diameter, the module and the number of teeth. How do I calculate these values? are important, otherwise the design of the wheel is packed. . .

I attach geometric construction table conical wheels.
The corner of the foot is deltaf.

 

[MBT]

mechanical carmg, place because useful to all.

How's this quotation going? useless are denied:

a little brutally said, but take it as a squeeze and not as a criticism.. .
:redface:

 

[xxi]

guys don't understand how to find the various bottom corners,primitive etc. to draw the conical wheel.how do I find them starting from the module?

is analogous to the cylindrical wheels but it is not necessary to calculate the angles.
These corner cabbages do not find them on the book(chirone)

I think it's the question of snaroz.

 

[xxi]

I attach geometric construction table conical wheels.

The corner of the foot is deltaf.

Perfect! !

 

[xxi]

mechanics and then in the inscriptions of the drawing it is necessary to specify in addition to form addendum dedendum etc. also the corners,I guess all the table you posted of the conical wheel?

 

[meccanicamg]

mechanics and then in the inscriptions of the drawing it is necessary to specify in addition to form addendum dedendum etc. also the corners,I guess all the table you posted of the conical wheel?

normally indicated

module m
number of teeth z
primitive corner deltaf
tooth measurement (string measurement)
degree of precision I discover uni 7880

 

[PierArg]

I attach geometric construction table conical wheels.

The corner of the foot is deltaf.

Are you the mary poppins of the forum?:biggrin:

every time you have the ready material!

 

[xxi]

Are you the mary poppins of the forum?:biggrin:

every time you have the ready material!

is a monster in giving explanations and material, and especially very kind in doing so.

 

[meccanicamg]

Are you the mary poppins of the forum?:biggrin:

every time you have the ready material!

I have so much ready material... My beloved hand-made hand-drawn hand-drawn hand-drawn hand-made hand-drawn hand-made hand-made hand-drawn hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-printed-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made hand-made