Double-acting type dynamic back spacing removed driving system

Details Double-acting type dynamic back spacing removed driving system Double-acting type dynamic back spacing removed driving system

1992-04-03

1993-11-30

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

74409, 748101, F16H 5524

Patent

active

052654885

ABSTRACT:
A double-acting type dynamic back spacing removed driving system comprises non-reversible transmission worm gear and worm set including two sets of worms coupling with worm gear. When the system is driven, one prime worm continues applying rotary driving force. Whether or not the worm gear is driven, such force would engage upon the prime worm permanently, and another set of worm gear (or co-axially secured at respective worm gear with same or different pitch), due to application worm applies force to worm gear permanently. The displacement-controlling worm is packed always due to worm set being non-reversibly transmitted so no spacing appears between the worm gear and the worm. At this moment, when the displacement-controlling worm is driven backward against compressed direction, and worm gear set is engaged in chasing displacement to reach packing condition again due to being driven by applied prime worm to form self-adjusting speed difference dynamic back spacing removed driving system according to load back spacing state. This principle can be used to accomplish dynamic back spacing removal when operation speed of displacement-controlling worm is lower than application prime worm.

REFERENCES:
patent: 1274918 (1918-08-01), Maag
patent: 5090267 (1992-02-01), Gramling

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