The cycloid reducer is a mechanical device that achieves speed reduction through a combination of input, intermediate, and output components. The input shaft is equipped with a double eccentric sleeve that is offset by 180°, which is supported by two roller bearings known as jibs. This eccentric sleeve plays a crucial role in transferring motion to the deceleration mechanism.
Inside the reducer, the H-type mechanism and the two cycloidal wheels are connected via an eccentric sleeve, which acts as a central component. The bearing raceway interacts with the cycloidal wheel, while the cycloidal wheel meshes with a set of pin teeth arranged in a ring. This internal gear engagement creates a speed reduction system with a one-tooth difference, which helps minimize friction and improve efficiency, especially in reducers with small speed ratios. Needle sleeves are also integrated into the design to support the pin teeth and ensure smooth operation.
As the input shaft rotates, the eccentric sleeve follows, causing the cycloidal wheel to move in a complex plane motion. This motion combines both revolution and rotation due to the unique tooth profile of the cycloidal wheel and the constraints imposed by the needle gear. When the input shaft turns one full rotation, the cycloidal wheel moves one tooth in the opposite direction, effectively reducing the speed.
The reduced rotational speed from the cycloidal wheel is then transferred to the output shaft through a W-shaped output mechanism. This mechanism uses pin shafts to transmit the low-speed rotation, resulting in a significant decrease in output speed compared to the input. This design makes the cycloid reducer highly efficient and suitable for various industrial applications where precise control and high torque are required.
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