shaft door size

[Francescoran]

I ask you the following question.
for agricultural mechanization needs, I have the following structure:
force of max 700 nm applied to the tree that will end in a differential and respective bridge with wheels.
for constructive needs the traction developed from the back bridge I will be discharged totally on the "port-tree" with internal diameter of 70 mm, as seen in the enclosed draft.
the sizing of this door-shaft, which will be turned in steel aisi 316 as in contact with high salinity fertilizers, is the problem that I place you.
I thank you in advance for the clarifications you provide.

 

[TETRASTORE]

you can refer to the discussions already made in the forum type This is whatHowever, this is a hollowless transmission shaft for the tab you need to calculate the thickness, you can also refer to this calculation procedure extrapolating, of course, the inherent part of the hollow shaft without a quarry for tongue with the characteristics of resistance of the material you adopt and with the stresses induced by your application.

 

[biz]

it would be useful to know which parallel forces regarding the sections identified as normal planes compared to the axis of the tube act on the same, since it is not a problem of torsion, but of bending and cutting (the latter negligible). how is the tube fixed at the bound end?

 

[Francescoran]

it would be useful to know which parallel forces regarding the sections identified as normal planes compared to the axis of the tube act on the same, since it is not a problem of torsion, but of bending and cutting (the latter negligible). how is the tube fixed at the bound end?

hello biz, thank you for the answer and I fully agree with you about the bending and not twisting effort. the hose will be bound by four pins at its seat.

 

[biz]

you simply need to recognize the radial force agent on the bearing. the maximum moment, of course, you will have it in the bound section.

 

[Francescoran]

you simply need to recognize the radial force agent on the bearing. the maximum moment, of course, you will have it in the bound section.

and you could give me a hand... I’m a little in trouble

 

[meccanicamg]

I ask you the following question.
for agricultural mechanization needs, I have the following structure:
force of max 700 nm applied to the tree that will end in a differential and respective bridge with wheels.
for constructive needs the traction developed from the back bridge I will be discharged totally on the "port-tree" with internal diameter of 70 mm, as seen in the enclosed draft.
the sizing of this door-shaft, which will be turned in steel aisi 316 as in contact with high salinity fertilizers, is the problem that I place you.
I thank you in advance for the clarifications you provide.

I don't understand.
a pair is measured in nm. a force is measured in n. do a 2d pattern because you do not understand what and where the bearings are. you don't understand if the tube is considered a stud. We're missing dat.

 

[biz]

Yes, to give you a hand we need unique indications, as it says @meccanicamg.

 

[Francescoran]

I attach you a graphic reproduction, the problem and size the tree holder. Thank you.

 

[biz]

It's not clear. f1 is a moment, not a force, is it? better if you can schematize the problem.However what we will do will be a maximum sizing, after which you will have to perform an analysis to the finite elements on a part of the genus, as it does not assimilate to a beam of de Saint Venant.

 

[Francescoran]

It's not clear. f1 is a moment, not a force, is it? better if you can schematize the problem.However what we will do will be a maximum sizing, after which you will have to perform an analysis to the finite elements on a part of the genus, as it does not assimilate to a beam of de Saint Venant.

exact biz, that f is a moment of about 700 nm. at the end of this structure, where you see the bolt, is installed a steel “ventula” that will have to span slurry and fertilizers at considerable distance. here is a second graphic reproduction for clarity. from how you see, the case will be subject to both bending and compression. Would you be able to dimensional it in principle?

 

[Francescoran]

 

[biz]

Of course I would succeed, the problem is that, evidently, you cannot. I know that you write “ingenious” (and already I worry), known that you cannot solve a very trivial exercise of science of construction, known that you do not even try and know that you would like the solution. I stop here. Can't make a little effort?

 

[Francescoran]

kind biz, my incompetence or ignorance, from what is most appropriate, I think we already know from the way I put the question, I am not afraid to admit it here publicly. I began to study engineering without ending it for family vicissitudes and for this I take care of the farm; If I don't remember badly, the forum doesn't give you the choice to write entrepreneur or similar things. the time has so "imbruttito" that I can not even make a "banaly calculation" or ask the question with all the necessary data. I have the need to realize the structure described and noting the availability you show in reading this forum I asked those who have the right skills. If you think it's appropriate to give me a hand, I'd be grateful if I didn't even know who to turn to, or if I knew someone I can turn to, please tell me and I would be happy to do so.
with sincere gratitude.

 

[biz]

kind biz, my incompetence or ignorance, from what is most appropriate, I think we already know from the way I put the question, I am not afraid to admit it here publicly. I began to study engineering without ending it for family vicissitudes and for this I take care of the farm; If I don't remember badly, the forum doesn't give you the choice to write entrepreneur or similar things. the time has so "imbruttito" that I can not even make a "banaly calculation" or ask the question with all the necessary data. I have the need to realize the structure described and noting the availability you show in reading this forum I asked those who have the right skills. If you think it's appropriate to give me a hand, I'd be grateful if I didn't even know who to turn to, or if I knew someone I can turn to, please tell me and I would be happy to do so.
with sincere gratitude.

Okay. I respect your position, forgive me. I assumed you were working as an engineer, as you wrote it in the profession.
in this case you would need a complete design of the device in short. If that is what you require, well it takes a little time, that I do not, if not to answer questions (or to ask questions) that require an absorption of less time, that I willingly spend, according to a logic "open source", on this forum, now generic one year to give you a hand addressed in the dimensioning.

 

[Francescoran]

Okay. I respect your position, forgive me. I assumed you were working as an engineer, as you wrote it in the profession.
in this case you would need a complete design of the device in short. If that is what you require, well it takes a little time, that I do not, if not to answer questions (or to ask questions) that require an absorption of less time, that I willingly spend, according to a logic "open source", on this forum, now generic one year to give you a hand addressed in the dimensioning.

I thank you for your understanding and also remarkable maturity, I fully understand that for the total design of the tool it takes time and of course also some appropriate resource . instead now the only question that I have is the minimum thickness of the shaft holder that will be made of 316 aisi steel. as mentioned the length is 105 cm and the inner shaft is 42 mm. the engine that will be connected is a 330 cv diesel with about 700 nm maximum torque. the rest of the structure is already sized is formed. I'll stay still at this box.
Finally to relate to the forum, I assume that I can read more than write given my little skills, but in any case I would like to post photos of the realization of the structure once done and above all understood the necessary thickness of the

 

[biz]

In fact I know the specific application, I imagine that the tube is 3"x5mm thick.if you want some extra explanation write me in private, also because it is a "personal history" that does not affect the community of the forum.

 

[Francescoran]

In fact I know the specific application, I imagine that the tube is 3"x5mm thick.if you want some extra explanation write me in private, also because it is a "personal history" that does not affect the community of the forum.

written

 

[Calender]

I hope you can help yourself:

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