Questions tagged [mechanical]
The mechanical tag has no usage guidance.
222
questions
1
vote
0
answers
9
views
How to estimate the rounding toque of an allen key socket?
I can't find an example calculation for the maximum torque of an allen key socket (the female bit on the screw head that the allen key goes into) anywhere online, or in textbooks, can someone point me ...
- 11
0
votes
1
answer
24
views
Motor torque required to move a trolley
This is a real situation.
The trolley is mounted with a rack underneath it and multiple steel wheels on a steel track. The trolley is driven by the rack and pinion mechanism from a geared motor.
The ...
- 1
0
votes
1
answer
17
views
eccentric to linear
How does one translate the up and down distance moved in degrees when rotating around an eccentric bearing
eg 10 degrees will get me X in a linear value
-1
votes
0
answers
23
views
How can I calculate the required motor torque to push a weight of approximately 15 kg?
I am working on a machine where I need to push a material weighing around 15 kg. The system consists of a motor and a ball screw mounted on the same axis, connected via a coupling. The ball screw has ...
1
vote
0
answers
26
views
Single millinewton strain gauge suggestions
I am working on a project where the precise & accurate measurement of single millinewton forces has become a significant boundary. Is there a cost effective device that is able to measure such ...
- 11
0
votes
3
answers
69
views
Electronic enclosure - Long screw holes
am designing an electronic enclosure for a medical device. For assembly reasons, the enclosure is split into two halves, with the bottom half having a depth of 200mm and top half of depth 50mm. I want ...
0
votes
0
answers
18
views
Method to calculate required gear size and teeth size for a rack system for a certain amount of travel?
high school amateur engineer- and first-time poster- here. I'm making a Nerf automatic springer system, and I want to model it. However, I don't know what size rack and gear system I need. I need 60 ...
1
vote
0
answers
33
views
Cryogenic pump - why is this part slotted?
What is the purpose of that slotted area?
In my opinion it is done that way in order to prevent it (the impeller) from sticking to the pump body in case it is not properly cooled down.
Some people say ...
0
votes
0
answers
18
views
Find stresses involved and calculate magnitudes
I am new to mechanical design.What all forces and moments act on the hinge plate in following figure?How to find magnitude of stresses induced on the supports?
Note: The spring is an expansion spring ...
- 1
0
votes
0
answers
39
views
Free body diagram problem: Linkage w/ magnets and friction hinge
I am a bit stumped on a IRL problem, which i simplified in the diagram below:
There are left and right beams (gray) linked together by a friction hinge. The bottom beam (black) is connected to the ...
- 21
0
votes
0
answers
66
views
Understanding moment load on axis (for robotic arm)
Check Pete comment for explanation below :) thank you Pete!
I need help understanding a concept im struggling with for quite a while now.
Im looking at different type of robotic arm designs, and some ...
- 1
0
votes
0
answers
26
views
Spring compression and quick release mechanism
I'm in a group and we're designing a wheel that can inflate and decompress using springs. The purpose of the string compression/decompression is to give our tires this jumpy/bouncy like movement. ...
0
votes
0
answers
13
views
I need a good description of a flow control valve for a tankless gas geysers. Preferably the battery type
I need to understand the working of the flow control valve of a battery operated tankless gas water heater.
It's the two or three knob geyser that uses 2 x D-cell batteries for ignition.
But I ...
1
vote
1
answer
109
views
how to interpret ISO2768-mK angular tolerance
How to apply tolerance for angle based on ISO-2768-mK? Cause I am confused about the statement "Permissible deviations in degrees and minutes for ranges in nominal lengths". Lets say I have ...
- 11
1
vote
0
answers
32
views
Can anyone suggest an Economical way for Polishing wound Wires?
I am working as a mechanical design engineer. At my work place, we were making chairs with 12 mm diameter wire via bending. We were using mild steel flash wires which was like the perfect wire with ...
- 11