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    GarlonMaxwell's Avatar
    GarlonMaxwell Posts: 1, Reputation: 1
    New Member
     
    #1

    Jul 14, 2014, 06:11 PM
    Horsepower for very large vibrator
    I want to build a large concrete breaker. The engine is picked out. The vibrator width can be decreased for thicker concrete and increased for thinner concrete.

    I want to create a vibrator by turning an eccentric shaft with 30 hp at 2400 RPM using the entire horsepower to turn the vibrator. I will need to make the shaft in a machine shop. I will hold the shaft on each end with roller bearings. The weight of the total vibrator could be any weight (adding weight to the vibrated part as necessary). I need a vibration with an amplitude of about ¾ inch.
    The shaft can be made from something like 4” solid shaft (mild steel) turned to 2” ends with an eccentric lobe in the middle. It can be 1 foot to 2 feet long if needed in the lobe area. The lobe length, weight, and distance from center are the numbers I am looking for.
    The question really becomes how much eccentric weight at what distance from center can 30 hp turn?
    smoothy's Avatar
    smoothy Posts: 25,492, Reputation: 2853
    Uber Member
     
    #2

    Jul 14, 2014, 06:15 PM
    ... and what the bearings can support.

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