Zero-return-difference harmonic gear transmission device
A technology of harmonic gears and transmissions, applied in gear transmissions, transmissions, belts/chains/gears, etc., can solve problems such as large transmission hysteresis, eliminate transmission hysteresis, eliminate backlash, and drive smoothly Effect
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[0035] Such as figure 1 with figure 2 As shown, the zero-backlash harmonic gear transmission of the present invention includes a rigid gear 1, a flexible gear 2 and a wave generator, the wave generator is composed of a flexible bearing 3 and an elastic cam 4, and the flexible gear 2 is located on a rigid In the gear 1, the upper and lower ends of the flexible gear 2 mesh with the upper and lower ends of the rigid gear 1, the flexible bearing 3 is located between the elastic cam 4 and the flexible gear 2, and the elastic cam 4 is oval in shape , the central portion of the elastic cam 4 is provided with a shaft hole 5, and the two sides of the shaft hole 5 in the direction of the long axis of the elastic cam 4 are respectively provided with one for forming at both ends in the direction of the long axis of the elastic cam 4 Structural hole 6 of cam thin wall 7 . The use of the elliptical elastic cam 4 can maximize the number of meshing teeth between the flexible gear 2 and the...
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