Yes, the drivetrain disks work because they use staggered
bolt patterns each with 4 metal sleeves buried in the rubber
disk. This allows the bolts to be tightened down hard
metal to metal with no sloppy rubber in between the bolt
head and the mating surface.
In order to install a rotator with rubber shock mounts between
the base and the mounting, a similar scheme that allowed
for hard mounting of the bolts metal-to-metal would be
required.
Per some of Tom's previous suggestions, seems like the
ultimate rotor mount would be to weld a automobile hub to
the bottom of the rotator housing and then use the center
web of a tire rim as the mounting plate (imagine installing
your rotator with lugs nuts and a tire iron - that would
never loosen up in the wind!!).
73 de Mike, W4EF...........................
----- Original Message -----
From: "Tom Rauch" <w8ji@akorn.net>
To: <towertalk@contesting.com>; "Pete Smith" <n4zr@contesting.com>
Sent: Tuesday, December 18, 2001 4:29 PM
Subject: Re: [TowerTalk] Hink and Kinks
>
> > This strikes me as less off-the-wall than the other "hints." Dave
> > Leeson uses rubber torsion dampers out of a BMW drivetrain, I believe,
> > to smooth out shock loads on his rotators. I think Yaesu may even
> > offer such a thing specifically for rotator use. That puts the
> > flexibility in the mast, but it could be in the rotator mounting if
> > you could do it durably.
>
> I can understand some sort of torque damper in the mast, if the
> system is designed so poorly or marginally that the rotor gears can
> just barely handle the load or if the are sloppy and bang back and
> forth.
>
> However...
>
> Knowing how and why bolts stay tight and understanding how
> rotors are constructed, I can't see how bolts would stay in the rotor
> if they were mounted as described...unless you glued them in.
>
> The last thing in the world you want to do to fasteners, especially
> something as problematic as a rotor mounting bolt, is put
> something that gives under them. There is no way to keep 'em tight
> if you do that.
> 73, Tom W8JI
> W8JI@contesting.com
>
> AN Wireless Self Supporting Towers are now available! Winloading tables,
> foundation diagrams and charts, along with full details are now at the
> AN Wireless Web site: http://www.ANWireless.com
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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>
>
AN Wireless Self Supporting Towers are now available! Windloading tables,
foundation diagrams and charts, along with full details are now at the
AN Wireless Web site: http://www.ANWireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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