Machine element or mechanism – Mechanical movements – Rotary to gyratory
Patent
1981-06-04
1984-01-17
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Rotary to gyratory
248635, 248638, 310 51, 310 91, 366128, 464 71, F16H 3310, B06B 116, F16D 368
Patent
active
044258135
ABSTRACT:
This invention pertains to induced vibrations and the dampening of these vibrations in the motor means. Vibrations induced by rotating a shaft having eccentric weights thereon have been used to produce all kinds of shaking apparatus including large car shakers in which the induced force may be much as eight thousand two hundred pounds. These vibrations may be as much as five thousand six hundred vibrations per minute and may be employed in hugh bins and hoppers in which the capacity is as great as one hundred fifty thousand pounds. Vibrators using air, electric or hydraulic motors can be tuned or adjusted to provide the desired results. Most of these vibrators using a tuned motor may be temporarily or permanently attached. Conventional motor driven vibrators, as far as is known, transmit the vibrational forces into the shaft of the motor. Said motors, which are usually conventional off-the-shelf units have their rotor bearings designed for rotary motion rather than combined with a vibratory force. This vibratory force reduces the life expectancy of these motors bearings. A rubber dampener device is used between the motor output shaft and the eccentric shaft which eliminates all vibration and vibrational forces from the housing of the vibration producing apparatus. The produced forces are absorbed from transmittal to the housing of the motor by two ring-like arrays of rubber grommets and spaced discs specifically adapted to prevent transmission of vibrations to the motor housing.
REFERENCES:
patent: 2188807 (1940-01-01), Castricone
patent: 2400341 (1946-05-01), Day et al.
patent: 2829529 (1958-04-01), Fleming
patent: 3177731 (1965-04-01), Peterson
patent: 3510137 (1970-05-01), Freier
Herrmann Allan D.
Roberts Ralph R.
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