Non-linear spring system for vibrating equipment

Details Non-linear spring system for vibrating equipment Non-linear spring system for vibrating equipment

1997-02-24

2000-08-22

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 17, 310 20, H02K 7065

Patent

active

061077151

ABSTRACT:
A spring system for a vibration driver provides a non-linear stiffening reaction force as the deflection of the spring system increases. In a vibration driver, particularly an electromagnetic vibration driver, a reciprocating plate provides opposing bumpers which engage opposing elastomer blocks alternately during the stroke of the plate. Elastomer blocks include on three or four sides an elastomer impregnated fabric. The fabric controls the bulging of the elastomer block during impact by the bumper, substantially changing the spring rate of the elastomer block, to increase the resonant frequency of the spring system as the machine stroke increases. Increasing resonant frequency controls the stroke amplitude of the plate for a consistent feed rate of resonant tuned vibratory material handling equipment.

REFERENCES:
patent: 4455496 (1984-06-01), Dean et al.
patent: 4673833 (1987-06-01), Dean et al.
patent: 4701647 (1987-10-01), Dean et al.
patent: 4719376 (1988-01-01), Dean et al.
patent: 5287027 (1994-02-01), Marshall et al.
patent: 5293987 (1994-03-01), Marshall et al.

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