Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1987-09-14
1988-10-11
Wright, Dirk
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
901 29, 901 26, F16H 3706
Patent
active
047762322
ABSTRACT:
A gearbox arrangement for an industrial robot comprises a flange element, a pivoting element and a rotating element adapted to move independently of each other, and having two trains of gears, comprising drive-shafts for connection to respective drive means, for separately driving the said flange element and pivoting element. Reduction gears are inserted between the two gear-trains and the flange and pivoting elements. The trains of gears in the rotating element are branched through the intermediate shafts and lateral shafts arranged with their axes in parallel with the axes of the drive-shafts. Such a structure permits the use of small diameter shafts and gears for a compact arrangement. In addition, it permits the use of spur gears at appropriate locations which are inexpensive and relatively easy to install, maintain and service to keep the low tolerances needed for industrial robots.
REFERENCES:
patent: 3739923 (1973-06-01), Totsuka
patent: 4499790 (1985-02-01), Helms
patent: 4507046 (1985-03-01), Sugimoto et al.
patent: 4574655 (1986-03-01), Kimura et al.
patent: 4608884 (1986-09-01), Beyer
patent: 4662815 (1987-05-01), Zimmer
patent: 4684313 (1987-08-01), Minematsu et al.
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