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Gold Prospecting
Hard Rock Gold Prospecting
6" Jaw Crusher
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<blockquote data-quote="RuddyCrazy" data-source="post: 669754" data-attributes="member: 19700"><p>G'Day Sand surfer by using a VFD on the hydraulic pump motor I can set the hertz to 100 then just a 5K pot can be used to dial in the speed as the VFD will adjust the rpm of the motor. </p><p></p><p>Anyway found a 4-1/2" ali pulley to be the donor for the primary drive and as the pump had a tapered output shaft I machined and keyed wayed the pulley today </p><p></p><p>[ATTACH=full]10268[/ATTACH]</p><p></p><p>I went thru the ratios and found by just changing the diameter of the primary pulley the output speed is 46RPM, now by replacing the 2" pulley on the first lay shaft which goes to the second lay shaft to 4" the output speed goes upto 96 RPM. So at 50 hertz that would be the speed and 100 hertz would double the speed which will be enough I do think.</p><p></p><p>Cheers Bryan</p></blockquote><p></p>
[QUOTE="RuddyCrazy, post: 669754, member: 19700"] G'Day Sand surfer by using a VFD on the hydraulic pump motor I can set the hertz to 100 then just a 5K pot can be used to dial in the speed as the VFD will adjust the rpm of the motor. Anyway found a 4-1/2" ali pulley to be the donor for the primary drive and as the pump had a tapered output shaft I machined and keyed wayed the pulley today [ATTACH type="full"]10268[/ATTACH] I went thru the ratios and found by just changing the diameter of the primary pulley the output speed is 46RPM, now by replacing the 2" pulley on the first lay shaft which goes to the second lay shaft to 4" the output speed goes upto 96 RPM. So at 50 hertz that would be the speed and 100 hertz would double the speed which will be enough I do think. Cheers Bryan [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
6" Jaw Crusher
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