All Questions
Tagged with mechanical mechanisms
39
questions
0
votes
0
answers
14
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 ...
0
votes
2
answers
31
views
How do rotate a picture on a wall once every 24 hours?
I have a picture with various day and night scenes that I would like to hang on a wall and have automatically and uniformly rotated once every 24 hours. The picture is roughly 55cm in diameter, 2cm ...
- 101
0
votes
1
answer
39
views
Characteristics of a smooth belt
I want to replace a cylindrical pulley, so I came across a component called a smooth belt.
Now this thing came with many differenent variations, from 2.00" up ...
- 115
0
votes
0
answers
76
views
Building Equations of Motion
The following figures represent a model of a building, can someone help me, extract the newton equations of motion and determine the degrees of freedom.
- 13
0
votes
2
answers
110
views
Why do some car's A-engine-mounts have bolts vs studs vs both?
I have come across engine mounts of various cars and am just curious primarily related to the "A" engine mounts where some manufacturers use only BOLTS, while some use only STUDS and some ...
- 101
0
votes
1
answer
103
views
The knee gives a mechanical advantage point for the leg, would a "reverse knee lever" also work?
As shown in this video, the simulated knee cap creates a fulcrum that allows for a better mechanical advantage for the muscles to pull the leg.
So I was wondering if the reverse would also work, or if ...
- 51
1
vote
0
answers
73
views
Compound Machine with Worm and Worm Wheel Drive Velocity Ratio
I'm having trouble understanding the working principle behind solving this worm drive. Here's the question:
A double threaded worm and 40-tooth worm wheel are used to drive a mechanical winch. The ...
- 115
3
votes
1
answer
353
views
How does this pawl mechanism work?
From 507 mechanical movements, No. 63, we get the following diagram and description.
Jumping or intermittent rotary motion, used for meters and revolution-counters. The drop and attached pawl, ...
- 219
0
votes
1
answer
69
views
What is this spring known as?
Could anyone tell me what the spring part of this component is called please so I can source something similar?
- 103
0
votes
0
answers
26
views
How to pull a component through a panel cutout using a screw mechanism?
I have a camera fixed to a cube frame structure made from aluminium extrusion. The frame will be covered by a 3 mm thick fibreglass enclosure (this is highly rigid) with a cutout for the camera, which ...
- 103
-1
votes
1
answer
57
views
how to let a needle move in positv roation and then a negativ rotaiton then it should loops [duplicate]
i am trying to make a watch that looks like the speedometer from merceds benz AMG
my problem is i canot figure out how to let the needle or the minute hand (call it what ever you want) rotate from 0 ...
0
votes
0
answers
82
views
Why were handcuffs ever made with a chain between them?
I've noticed that modern handcuffs are always attached directly to each other, without any "chain" of any length in between. I guess I can understand why that make them safer and more robust....
0
votes
2
answers
298
views
Incremental rotation that snaps in place
I'm developing a board game and it needs a mechanism of incremental rotation in which the rotated object will snap to one of five possible angles. I have been trying to search for examples of ...
1
vote
2
answers
62
views
Connection to periodically electrify equipment
I am designing a system where I have a set of 4 electrical components rotating in a circle. In the bottom stage, the electrical component is submerged in water. In the top stage, the electrical ...
0
votes
1
answer
188
views
How to make a circle spin from the edges
I have an issue where I need to make a large wire through a bearing spin in 3" diameter circles, and have a weight hanging from the bottom of the wire. Essentially, I need a hole that moves in a ...