Ball worm and worm gear device

Details Ball worm and worm gear device Ball worm and worm gear device

1996-07-09

1998-10-06

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

74458, F16H 116, F16H 5510

Patent

active

058161031

ABSTRACT:
The present invention is a ball worm and worm gear device which is a ball worm structure consisting of an arbor, a helix body and a housing where the said helix body further consists of a back-flow socket pipe that encase the arbor and a helical socket pipe that further encase the said back-flow socket pipe; Both the two socket pipes possess a back-flow channel and a helical channel respectively, having helical shapes but in opposite directions with their inlets and outlets connected each other, to form inner and outer channels of the helix body; These channels contain many balls which are constrained in the channels of the helix body to keep them from dropping off by encasing the housing around the helix body. Since the said two channels are opposite in helical directions, the balls in the helical channel of the helix body can roll back to the starting position after rolling to the back-flow channel by means of the transport phenomenon generated by the relative rotation between the back-flow channel and the the arbor, thereby, to form an unobstructive loop of the ball rotation which ends up with raising the transmission efficiency and lowing the wearing.

REFERENCES:
patent: 4023433 (1977-05-01), Schutz
patent: 5373753 (1994-12-01), Toyomasa

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