Mechanism for maintaining constant belt tension on sheaves with

Details Mechanism for maintaining constant belt tension on sheaves with Mechanism for maintaining constant belt tension on sheaves with

1984-06-01

1986-06-17

Leppink, James A.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Pulley or guide roll has eccentric mount for shifting or...

F16H 710

Patent

active

045953848

ABSTRACT:
A mechanism which maintains drive belt tension substantially constant when the drive belt is mounted on sheaves with a non-fixed center distance such as the sheaves and belt utilized in vibratory earth compaction equipment, shakers and the like where off-centered weights are rotated at high speeds to obtain desired vibrations. The mechanism includes a driven sheave that is mounted eccentrically on the rotating shaft which supports the off-center weight with the eccentricity of the eccentrically mounted sheave being in the same direction as the offset of the off-center weight. This arrangement allows the center distance between the drive sheave and driven sheave to remain relatively constant thus retaining the drive belt tension relatively constant.

REFERENCES:
patent: 4311120 (1982-01-01), Freyn et al.

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