Travel multiplication and planetary gear drive mechanism for mechanical driving demonstration device

摘要: The utility model relates to a travel multiplication and planetary gear driving mechanism used for demonstrating mechanical demonstration device. is characterized in that the comprises hand wheel component which arranged middle part of device panel; above component; connected with transmission way through belt; below belt. structure has novel design. A plurality groups mechanisms are large operated, driven by belt, meanwhile, Various transferring dynamic displayed intuitively, knowledge popularized, science interest teenagers stimulated, innovative consciousness cultured.