- #1
Feith
- 3
- 0
For 10kN vertical load,I just need some instructions to follow and if someone can provide schemes and more details will be great
))THANKS!
))THANKS!
Click For Summary
Discussion Overview
The discussion revolves around designing a power screw device intended for lifting applications, specifically under a vertical load of 10kN. Participants seek guidance on the design process, including calculations for thread diameters and types, as well as general design considerations for robustness and transportability.
Discussion Character
- Homework-related
- Exploratory
- Technical explanation
Main Points Raised
- One participant requests instructions and schemes for designing a power screw device for a 10kN vertical load.
- Another participant emphasizes the need for more information about the motor type, speed requirements, and available gearing before providing assistance.
- A participant mentions their coursework requirements, stating the need for a robust, compact, and transportable design, but expresses uncertainty about how to start the calculations for thread diameters and types.
- Concerns are raised about foundational design aspects, such as column buckling and base stability under load, before delving into specifics like thread forms.
- One participant expresses frustration about the lack of guidance from their tutor and the difficulty in synthesizing information from various sources.
- Links to external resources are shared by a participant, which are acknowledged as potentially useful by others.
- Another participant expresses a similar project deadline and requests video tutorials or additional help to complete their assignment.
Areas of Agreement / Disagreement
Participants generally express uncertainty and seek clarification on various aspects of the design process. There is no consensus on specific design approaches or calculations, and multiple viewpoints on how to proceed are present.
Contextual Notes
Participants note limitations in the information provided by the tutor, which affects their ability to formulate a complete design. There are also unresolved questions regarding foundational calculations and design principles.
Who May Find This Useful
Students or individuals involved in mechanical design projects, particularly those focusing on power screw mechanisms and lifting devices.
- #2
Danger
Gold Member
- 9,805
- 251
You need to provide a lot more information before I can begin to visualize the setup. What kind of motor? How fast must it go up? What gearing is available? That sort of stuff.
- #3
Feith
- 3
- 0
Well,my coursework says that I need to design a power screw device,the design should be robust,compact and easily transported. The axial load is 10kN and the power screw pass is 160mm. Unfortunately,this is all I have as information from my tutor and as far as I know it shoul be some sort of lifting device.I just need something for a start,e.g. when I have two threads which diameters should be calculated and how should I chose the type of the thread.
- #4
FredGarvin
Science Advisor
- 5,097
- 10
Homework needs to be posted in the homework section.
What work have you done to this point? Before getting into details like thread forms, have you done the basics like column buckling or making sure your base will not collapse under the weight? Do you have a basic design in mind?
What work have you done to this point? Before getting into details like thread forms, have you done the basics like column buckling or making sure your base will not collapse under the weight? Do you have a basic design in mind?
- #5
Feith
- 3
- 0
I know it sounds really stupid,but the main problem is that I just don't know where to start from,the tutor just told me and my colleagues to design a power screw device,I thing for lifting cars,when repearing them,and gave me the two already mentioned parameters.On our tutorials there were no explanations about what should be calculated exactly and how, the idea was to find out by ourselves.And so I'm reading here articles on the net and looking for some clues,but for now I only find bits and pieces and I can't summirize the whole stuff together.And because of that my question becomes a real mess
- #6
FredGarvin
Science Advisor
- 5,097
- 10
What level of schooling are you at?Feith said:I know it sounds really stupid,but the main problem is that I just don't know where to start from,the tutor just told me and my colleagues to design a power screw device,I thing for lifting cars,when repearing them,and gave me the two already mentioned parameters.On our tutorials there were no explanations about what should be calculated exactly and how, the idea was to find out by ourselves.And so I'm reading here articles on the net and looking for some clues,but for now I only find bits and pieces and I can't summirize the whole stuff together.And because of that my question becomes a real mess
- #7
FredGarvin
Science Advisor
- 5,097
- 10
Try starting here:
http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Power_Screws.html
http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Power_Screws_2.html
http://www.utm.edu/departments/engin/lemaster/Machine%20Design/Notes%2027.pdf
http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Power_Screws.html
http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Power_Screws_2.html
http://www.utm.edu/departments/engin/lemaster/Machine%20Design/Notes%2027.pdf
Last edited by a moderator:
- #8
Danger
Gold Member
- 9,805
- 251
Awesome links, Fred. Those are going to come in mighty handy for some of my misc. tinkering projects. Believe it or not, I've never heard of a 'buttress form' thread before.
- #9
_Miami_
- 3
- 0
Feith said:
I have the same exact project right now and I need to finish by this friday.. I found a few links but I need like a small video tutorial to help me out.. Or just anything anyone can help me with..
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