coiling drum of a lifting winch

[Ernesto120]

Hello everyone, for educational purposes I have to realize a project of a lifting winch and among the first demands is to design (size and verify) a winding drum, equipped with grooves for driving the rope and external flanges. is anyone aware of any pdf or book that you can refer to?

 

[Stan9411]

http://www.carmnap.it/esame2007.htm

https://online.scuola.zanichelli.it...10/03/zanichelli_pidatella_temiesame_2007.pdf

Maybe they can help you start

 

[TETRASTORE]

qui e qui you can find examples of how lifting drums are made.in quest'altro documento find the indications for the size of the grooves according to the diameter of the cable.
last: "critical analysis of the methods of calculation of stress in drums for lifting provided by current legislation" is a complete document that has a lot more information than you need, from which you can still take inspiration or extract references that can be useful to you and get to know these products better.

 

[meccanicamg]

the exercise taken from zanichelli is very scarce.
in reality This is link always brings academically, a more serious course.
We remember that they are elements that break hard and still in these years there is some problem.
there are also welds to check.

 

[Ernesto120]

the exercise taken from zanichelli is very scarce.
in reality This is link always brings academically, a more serious course.
We remember that they are elements that break hard and still in these years there is some problem.
there are also welds to check.

I was looking for something similar to this solution, but slightly more complete. For example, I have noticed that it imposes as an approximation that the moment enters through a single tab, while we have been asked not to make this approximation and to evaluate both the moment entering from tab 1 and tab 2. However, it remains the problem of external flanges that I do not know how to calculate.

 

[Ernesto120]

qui e qui you can find examples of how lifting drums are made.in quest'altro documento find the indications for the size of the grooves according to the diameter of the cable.
last: "critical analysis of the methods of calculation of stress in drums for lifting provided by current legislation" is a complete document that has a lot more information than you need, from which you can still take inspiration or extract references that can be useful to you and get to know these products better.

thank you for these ideas, they will certainly be useful to hone some parts of the project, but I'm still looking for something that cares more about the lectures of the teacher, such as the link sent to me by @meccanicamg

 

[Marco F inox]

thank you for these ideas, they will certainly be useful to hone some parts of the project, but I'm still looking for something that cares more about the lectures of the teacher, such as the link sent to me by @meccanicamg

thank you for these ideas, they will certainly be useful to hone some parts of the project, but I'm still looking for something that cares more about the lectures of the teacher, such as the link sent to me by @meccanicamg

try to make a drawing of the problem, putting some measure, maybe we can help you better.
You know, there's a lot of paranoids.

 

[Ernesto120]

Good evening, I would have a question to ask you, I'm realizing the project's axieme on solidworks and I currently positioned a parallelepiped instead of the orthogonal bonfiglioli reducer. is it possible to find online a library of cad files of the reducers?

 

[MassiVonWeizen]

optimal solution:

https://www.bonfiglioli.com/italy/it/module-pages/mosaico

sign up, define the gearmotor and then download the 3d
palliative solution:
look for in the various sites type cadenas, tracepart, grabcad the same gearmotor for size for you important (you still need to register)
alternative solution:
download the catalog without need for registration and you models it yourself respecting bulk and size for you important

 

[Ernesto120]

Thank you. I tried to define the reducer on their platform, but it keeps downloading the cad of the flanged reducer model, while I care about the hs configuration, I don't know whether it's a system limitation or it's my compilation error

 

[Ernesto120]

I have another question to ask you. It is necessary to insert geometric tolerances in the plan boards, for example the concentricity between the drum tree and the flanges. Are there any rules in this regard that can help me define the values to be inserted for tolerances?