Reduction gear drive utilising flexible toothed wheel - provides large reduction ratio with compactness and low weight and positive drive

The drive housing (7) embodies a fixed gear ring (1) with internal teeth. Within this ring is a flexible gear ring (3) in the form of a sleeved thin-walled tube whose length is greater than the thickness of the fixed gear ring. The input shaft (6) is coupled via reduction gears (45, 46) to a hollow...

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Bibliographic Details
Main Author D. P. VOLKOV, A. F. KRAINEV, A. A. STUPAKOV ET S. V. BONDARENKO
Format Patent
LanguageEnglish
French
Published 08.10.1976
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The drive housing (7) embodies a fixed gear ring (1) with internal teeth. Within this ring is a flexible gear ring (3) in the form of a sleeved thin-walled tube whose length is greater than the thickness of the fixed gear ring. The input shaft (6) is coupled via reduction gears (45, 46) to a hollow shaft (14) carrying three eccentrics (26, 27, 28) with ball bearing mounted rings (38, 39, 40). The rings of the eccentrics press against the sleeve of the flexible gear ring, forming it to an oval shape so that its teeth engage with those of the fixed ring in two regions. Since the flexible ring has fewer teeth than the fixed ring, the former rotates at a speed proportional to the difference. Couplings (8, 9) transmit the rotation to the output flange.
Bibliography:Application Number: FR19750007938