1. Smooth movement, strong shock and vibration resistance: due to the adoption of several planetary gears with the same structure, which are evenly distributed around the center wheel, the forces of the planetary gear and the rotating arm are balanced.The coaxial feature also increases the number of meshing teeth, making the planetary gear drive stable, strong in shock and vibration resistance, and reliable in work.
2. The transmission ratio is large, which can realize the synthesis and decomposition of motion: as long as the appropriate type and gear matching scheme are selected, a few gears can be used to obtain a large transmission ratio, up to several thousand.While the transmission ratio is large, it can still maintain the characteristics of compact structure, small mass and small volume.In particular, it should be pointed out that it can also realize the synthesis and decomposition of motion and various complex speed-changing motions.
3. The planetary gear reducer is small in size, small in quality, compact and reasonable in structure, and has a carrying capacity: because the planetary gear transmission has power splitting and the coaxial transmission of each center wheel and the rational application of the internal meshing gear pair, the structure is changed. very compact.And because several planetary gears are evenly distributed around the center wheel to share the load, so that the load on each gear is reduced as much as possible, and these gears are allowed to adopt a smaller modulus.In addition, the structure makes full use of the characteristics of the large bearing capacity of the internal meshing and the large volume of the ring gear itself, and reduces the size of the outer profile as much as possible to reduce the volume and quality, and the structure becomes compact and the bearing capacity increases. .Its outline size and quality are about 1/2 to 1/5 of that of ordinary gear transmission (that is, under the same load condition).
4. High transmission efficiency: due to the symmetry of the structure of the planetary gear transmission, there are several evenly distributed planetary wheels, so that the reaction forces acting on the center wheel and the bearing of the rotating arm are mutually balanced, which is conducive to the generation of improved transmission efficiency. effect.In the case of accurate transmission type selection and reasonable structural layout, the efficiency value can generally reach 0.97~0.99.
