I do my best to explain how you can making a rotating seal work in a high vacuum environment. This may help, www.pfeiffer-vacuum.com/know-h...
Жүктеу.....
Пікірлер: 13
@DJDAudio11 жыл бұрын
I see what you are getting at, it is not directly a rotating seal, it is a static seal that allows for rotating motion to be translated. There is no slip at all in this joint, it is a 100% rigid coupling and can transfer much more torque then a normal magnetic coupling. As well as at much higher speed then O-Ring seals. It is a neat way of converting motion through a 'rigid' seal. :)
@jeffkosmoski99976 жыл бұрын
Thanks for showing this, but I wonder if you're not addressing perhaps the most important part of this mechanism. That is, the long vacuum-side rod needs to be bent inside the bellows. The bellows itself doesn't rotate (as you say) - but "pushes" the bent tp of the long rod in a circular motion... which rotates the long rod. Either that, or I'm missing something entirely. Thanks again!
@nixie2462
6 жыл бұрын
Yes, but to show that, he probably had to rip off the flexible bellows, and if the unit is just out for cleaning, that would damage it irreversibly.
@milaanpatel4997
4 жыл бұрын
that sure seems the thing
@Rufeo011 жыл бұрын
I see yes could be very useful. I see now from the drawing in the link, I thought the vacuum and atmosphere ends where reversed. I assume this device would work equally well with high pressure vs atmospheric?
@olivergroves87356 жыл бұрын
can you tell where I can get details of this design and where I can purchase one. Thank You, Oliver
@frankiehouse2364 Жыл бұрын
Thanks
@panaj10004 жыл бұрын
Is this available in india??
@TB-oe4vr6 жыл бұрын
He's not talking about the rotating seal.
@dipereira0123
2 жыл бұрын
I also had the same feeling, but as far as I could understand, "inside" the flexible seal theres the cardan joint (the rusty one he showed), that only converts the motion circular motion if there's a angle in the input. I'm looking for a 3d animation to be sure but couldnt find yet
@Rufeo011 жыл бұрын
Hmmm thats not actually a seal though is it. Thats just a really weirdo drivetrain connection for no apparent reason. The seal is inside the metal casing part. The weird drive train is likely there so if the shaft is obstructed it can slip without causing damage.
@dipereira0123
2 жыл бұрын
As far as I undrestand the flexible connection could be some sealing material like Leather/plastic (since that part is not actually rotating), and inside that metalic flexible part is hidden the cardan joint. So if I understand correctly, it will only have rotation if there's a angle on the input shaft
Пікірлер: 13
I see what you are getting at, it is not directly a rotating seal, it is a static seal that allows for rotating motion to be translated. There is no slip at all in this joint, it is a 100% rigid coupling and can transfer much more torque then a normal magnetic coupling. As well as at much higher speed then O-Ring seals. It is a neat way of converting motion through a 'rigid' seal. :)
Thanks for showing this, but I wonder if you're not addressing perhaps the most important part of this mechanism. That is, the long vacuum-side rod needs to be bent inside the bellows. The bellows itself doesn't rotate (as you say) - but "pushes" the bent tp of the long rod in a circular motion... which rotates the long rod. Either that, or I'm missing something entirely. Thanks again!
@nixie2462
6 жыл бұрын
Yes, but to show that, he probably had to rip off the flexible bellows, and if the unit is just out for cleaning, that would damage it irreversibly.
@milaanpatel4997
4 жыл бұрын
that sure seems the thing
I see yes could be very useful. I see now from the drawing in the link, I thought the vacuum and atmosphere ends where reversed. I assume this device would work equally well with high pressure vs atmospheric?
can you tell where I can get details of this design and where I can purchase one. Thank You, Oliver
Thanks
Is this available in india??
He's not talking about the rotating seal.
@dipereira0123
2 жыл бұрын
I also had the same feeling, but as far as I could understand, "inside" the flexible seal theres the cardan joint (the rusty one he showed), that only converts the motion circular motion if there's a angle in the input. I'm looking for a 3d animation to be sure but couldnt find yet
Hmmm thats not actually a seal though is it. Thats just a really weirdo drivetrain connection for no apparent reason. The seal is inside the metal casing part. The weird drive train is likely there so if the shaft is obstructed it can slip without causing damage.
@dipereira0123
2 жыл бұрын
As far as I undrestand the flexible connection could be some sealing material like Leather/plastic (since that part is not actually rotating), and inside that metalic flexible part is hidden the cardan joint. So if I understand correctly, it will only have rotation if there's a angle on the input shaft