Planetary gear transmission with variable ratio

Details Planetary gear transmission with variable ratio Planetary gear transmission with variable ratio

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 3/44 (2006.01) F16H 3/72 (2006.01) F16H 3/56 (2006.01)

Patent

CA 2351240

The invention relates to a planetary gear transmission with a steplessly adjustable transmission ratio. The gear transmission comprises a first and second sun gear (11, 12) arranged on a first and second operating shaft (7; 8), and first (1) and second planetary gears (2) connectable thereto, each of which sun gears is rigidly attached by a shaft (6) to the first planetary gears (1), so that the first and second planetary gears form planetary gear pairs (B1). The gear transmission includes only one planetary carrier (5). By means of coupling means (50), the whole rotary force or part thereof is taken out of the planetary gear and/or fed therein, either via said first or second operating shaft (7; 8), or via an alternative planetary carrier. By using at least one operation means (15, 16, 17, 23, 24, 25, 26, 37), the planetary carrier rotation velocity (.psi.) is controlled to remain locked stationary and to be freely rotatable

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