Questions tagged [machine-design]
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13
questions
2
votes
1answer
49 views
What mechanism is available to rotate a metal piece on another metal piece?
I am trying to find some type of mechanism where I can have a smooth but not too stiff rotation between two metal pieces. I was thinking of putting a shoulder screw through the pieces (the pieces will ...
0
votes
0answers
30 views
Fitting a sprocket on a small motor shaft
I have a bit of a newbie question. I've inherited a mechanical system, wherein the motor has a D-type output shaft with a diameter of 8mm.
(https://www.ebay.co.uk/itm/DC-High-Torque-Worm-Reducer-...
0
votes
1answer
37 views
Any books about design of complex machines? [closed]
I'm familiar with several books that deal with the analysis and design of simple mechanisms (such as Norton's Design of Machinery), including four-bar linkages, gear trains and cams. There are also ...
-1
votes
1answer
51 views
visualization of intersection of two objects [closed]
This is from a design entrance that I am preparing for. I know it's a little different than a theoretical projection drawing that engineering books usually cover. It is more practical and ...
0
votes
1answer
63 views
Analysis of Machine Frames With Cut Outs
I have a structure that is used to support two shafts which are carrying relatively high loads. It is composed of two columns and a "shaft supporting block" in the centre (almost acting as a beam). ...
0
votes
2answers
50 views
What kind of mechanism can be used to rotate a part in 180 degrees (Ψ (yaw)) and 30degrees in 𝜃 (pitch) direction?
Let's say we have a flat object. We are asked to create some mechanism so that the part can rotate in the shown angles above. What mechanisms can be used?
0
votes
1answer
34 views
What are the different methods to join 2 parts so that one can rotate 180 degrees around the other?
Let's say we have one simple box and its bottom has been cut in a circular shape. We want to attach another box to this box that can rotate 180deg around the first one. What mechanism can be used to ...
1
vote
0answers
21 views
Springs on a pulley… When to use?
I saw a machine that fed a sheet of laminate through some rollers. The motor had a pulley attached to its shaft, and a spring connected to the pulley. Why not use a belt? Wouldnt the spring make it ...
0
votes
0answers
78 views
Machine Frame Design
How do I select the cross section for a machine frame? Do I need to refer to the AISC steel construction manual to find the capacity of beams, columns, etc?
3
votes
1answer
74 views
What mechanism do I use for this pen-like design?
I am trying to make a pen-like product that moves out fluid from its tip for some special chores, but I am having issues about the motion of the clutch. The picture you see is a sectioned concept ...
0
votes
0answers
128 views
Bearing stress v/s crushing stress
What is "Bearing stress" and Is it different from Crushing stress?
If yes explain How?
and
When does an element come under Bearing Stress?
This question came to my mind while studying knuckle joint ...
1
vote
1answer
56 views
I need help identifying a special kind of coupling
I found this switchable coupling in Rollof/Matek machine elements, i have never seen this kind of coupling before.
According to the dutch edition its name is:
Tweevlakskoppeling
Which literally ...
0
votes
1answer
34 views
How to choose between two possible arrangements of tapered roller bearings?
I don't know how to decide between the $X$ and $O$ arrangement, i don't have any specific example at this moment, but i want to know.
Catalogues offer only some basic calculations. I'm not quite sure ...
