Member
centrifugal force
i want to build a centrifugal clutch.. 45 hp.
aprox 6 inch diameter. i want to engage this clutch at 1000 rpm. with a max speed of 3500 rpm, there will be three steel shoes, lined.
question.. what kind of spring pressure do i require.. i will use three compression springs..(valve springs) i have a design in mind. but lack the formula...if any one can help me... thanks
freddy
15X50 colchester.. 9 inch southbend. milrite, wire feed
Senior Member
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thanks evan.. i came up with 112 is this the weight?
15X50 colchester.. 9 inch southbend. milrite, wire feed
Senior Member
It is the acceleration factor. 112 means 112 times the effective weight, or 112 gees.
If the weight of the shoes is one pound at 1000 rpm they will experience 112 times the force meaning a 112 pound spring will be needed, more or less.
L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
Member
good deal thanks again
freddy
15X50 colchester.. 9 inch southbend. milrite, wire feed
Senior Member
Did you do the metric conversion right? For a radius of 3" (76.2mm) I get a gee factor of 85 at 1000 rpm.
L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
Member
no.. i entered dia..but 85 is closer to the spring pressure..which is a good thing..
freddy
15X50 colchester.. 9 inch southbend. milrite, wire feed
Senior Member
The formula for centrifugal acceleration, a=rw**2, gives 85.27 gravities (r=.0762m, w=104.72 radian/sec), so Evan's number gets my vote.
Senior Member
As a point of interest the average washing machine generates up to 400 gees in the spin cycle. Some models in Europe produce over 1000 gees. This begs the question of what happens if the cat gets in there?
L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
Senior Member
A dryer version of what happens to cats when they get sucked into a woodworking dust collector
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Today I will gladly share my experience and advice, for there no sweeter words than "I told you so."
Today I will gladly share my experience and advice, for there no sweeter words than "I told you so."
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