HARMONIC SPEED REDUCER - MAIN DRIVE CORP

Title:

HARMONIC SPEED REDUCER

Document Type and Number:

Japanese Patent JP2022119725

Kind Code:

A

Abstract:

To improve the low mesh efficiency and the low lifespan of the conventional harmonic speed reducer having two rigid gears.SOLUTION: A harmonic speed reducer includes a wave generator, a flexible gear, a first rigid gear, and a second rigid gear. The wave generator can be driven to rotate around a central axis. The outer periphery of the flexible gear is provided with a plurality of first outer gear structures, a division groove, and a plurality of second outer gear structures. The first rigid gear has a plurality of first inner gear structures configured to be engaged with the first outer gear structures. The second rigid gear has a plurality of second inner gear structures configured to be engaged with the second outer gear structures. An angle between a first intersection line, defined between a first top surface and a sectional surface in each of the first outer gear structures, and a first horizontal line is 0.1 degrees to 5 degrees. The distance between the first intersection line and the central axis at the sectional surface gradually decreases from the inner side of the first rigid gear to the outer side. The normal direction of the sectional surface is perpendicular to the central axis, and the central axis passes through the sectional surface.SELECTED DRAWING: Figure 6

Inventors:

HSIEH KUN-JU
LEE CHANG-LIN
RI TOYU
WU CHING-HUEI

Application Number:

JP2022006221A

Publication Date:

August 17, 2022

Filing Date:

January 19, 2022

Export Citation:

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