överfallshjul

The term "överfallshjul" is Swedish for "epicyclic gear" or "planetary gear". It refers to a gear system consisting of one or more outer gears, or planet gears, revolving around a central, or sun gear. Typically, the planet gears are mounted on a movable arm or carrier which itself may rotate relative to the sun gear.

The överfallshjul system is designed to alter the speed, torque, or direction of a power source. It is widely used in various mechanical applications due to its compact size, high gear ratios, and ability to perform complex gear reductions in a small space. The system's efficiency and versatility make it suitable for a range of uses, from automotive transmissions and industrial machinery to aerospace applications.

In an överfallshjul arrangement, the sun gear, planet gears, and ring gear work together to transfer power. The sun gear is located at the center and is typically the input or output shaft. The planet gears orbit around the sun gear and are usually mounted on a rotating carrier. The ring gear, also known as the annulus, is the outer gear that meshes with the planet gears.

The överfallshjul system can operate in different configurations, allowing for various gear ratios and mechanical advantages. By fixing or locking different components, the system can achieve different output speeds and torques. This flexibility makes the överfallshjul a valuable component in many mechanical systems.