design of a lifting winch and its support structure

[peppe17]

Hi, I'm a mechanical engineering student and I'm at the last exam where I'm having some trouble. the professor assigned us a project regarding the design of a lifting winch.
starting from the initial data, such as: maximum load to be lifted 38kn, height to the hook 7 m , lifting speed 10 m/min, number of wheel of the rope 4 , cycles per hour 15, light supports 5x5 m; the project must be developed and the consequent verification of the main mechanical organs. in particular the following dimensions and verifications must be carried out:
1. dimensioning and verification to breakage and fatigue of the drum;
2. sizing and testing at fatigue and deformation of trees;
3. sizing and checking the threaded elements inside the assembly.
4. sizing of the rope;
5. sizing of the deferral cartcula if present;
6. sizing of the support structure and the relative connection joints in it present.
thanks in advance for the help.

 

[peppe17]

Hi, I'm a mechanical engineering student and I'm at the last exam where I'm having some trouble. the professor assigned us a project regarding the design of a lifting winch.
starting from the initial data, such as: maximum load to be lifted 38kn, height to the hook 7 m , lifting speed 10 m/min, number of wheel of the rope 4 , cycles per hour 15, light supports 5x5 m; the project must be developed and the consequent verification of the main mechanical organs. in particular the following dimensions and verifications must be carried out:
1. dimensioning and verification to breakage and fatigue of the drum;
2. sizing and testing at fatigue and deformation of trees;
3. sizing and checking the threaded elements inside the assembly.
4. sizing of the rope;
5. sizing of the deferral cartcula if present;
6. sizing of the support structure and the relative connection joints in it present.
thanks in advance for the help.

 

[gerod]

Hi.
as said several times, you have to do the sizing and then maybe we see where you're wrong.
That's too easy.
start with the en 14492-2 where you will find how to size part of the hoist.
After you studied, start with the sizing.
Thank you.

 

[meccanicamg]

If you do a search we just talked about this week with a lot of similar exercise solved for the drum side.
Anyway, you put your ideas, then we'll fix them.
What can't you do?
starts with a scheme with measurements and directions. schematizes the components.
Put your strength on it, solve it....size one thing at a time.
if you just don't know which side to start or they didn't explain anything to you or are not ready to face the exam.
some ideas you have to have...

 

[meccanicamg]

Save. qui Your colleague... .
learn to look for when you don't have data or need tips.
begins to collect ideas.... then begins to come across.
static trees I would say that it is the base of science of construction.... do the internal actions but you can sketch so.
fatigue of the trees....qui e qui.
screws and welds uni en iso 1993-1-8.
always hard following the above... .qui.
then there are bearings, joints, reducer... from trade or projects....you want to make it.
200 hours of work head low.

 

[meccanicamg]

So what?
Where are you?
have you started from the fourth shooting scheme with double winding to determine which forces are on the drum?
Have you lost your way? Did you find a partner who spends the project of the year before?
All clear?

 

[peppe17]

Here I am sorry for the absence but how you can understand this faculty is tough and I am covered by the exams... I wanted to thank you for all the material and the tips you gave me, now we work and keep you updated
ps. Maybe to have the project of the year before

 

[ragnol]

ps. Maybe to have the project of the year before

@peppe17 It goes there that is not true... it would be less tiring, but what would you take away? !