Planetary gear reducer: main drive structure: planets, sun gear, outer ring gear.
Due to structural reasons, the planetary gear reducer is generally not more than 10 for single-stage reduction of small 3, common reduction rate: 3.4.5.6.8.10, the reducer series is generally not more than 3, but some are far lower than custom 4 Stage reduction gear reducer. Compared with other reducers, the planetary reducer has high rigidity, high precision (can complete single stage within 1 minute), high efficiency (single 97%-98%), high torque ratio, lifetime protection and so on.
Because of these characteristics, most planetary reducers are installed on stepper motors and servo motors for speed reduction, torque advancement, and inertia matching. The maximum output speed reducer is 18000 rpm (the size of the reducer is the same as its own reducer, the maximum output speed of the reducer is small), the output torque of the industrial-grade planetary gear reducer reaches 2000Nm, and the output torque of the special high-torque reducer is 10000Nm. Working temperature -25 ℃ to 100 ℃, can be changed by changing the working temperature of the grease.
Series: Planetary gear units.Because planetary gears are used to meet large transmission ratios, sometimes 2 or 3 sets are required to meet the requirements of supporting larger transmission ratios.As the number of planetary gears, 2-stage or 3-stage length gearbox increases, the progress in efficiency will be curtailed. Back distance: will be fixed at the output, input clockwise and counterclockwise to make the input +-2% torque extra torque, small angular displacement at the input end of the gearbox, the angular displacement is the space back.The unit is 'point', which is a sixty.Some people call it a rebound.
Planetary cycloidal reducer: All actuators can be divided into three parts: input part, slow, output part.The input shaft is still dislocated by 180° of the double eccentric sleeve, and there are two roller bearings called the arm in the eccentric setting, forming an h structure, and the center holes of the two cycloidal wheels are used for the eccentric setting of the upper arm bearing The raceway, and the cycloidal wheel and the needle teeth of the pin gear set are meshed to form a tooth difference internal meshing deceleration mechanism. set).The input shaft and the eccentric sleeve roll a circle of stones. Because of the characteristics of the tooth profile curve on the cycloid wheel and the constraints of the needle teeth on the pin gear, the movement of the cycloid wheel becomes these two revolutions. Some plane movements, in The input shaft rotates around the stone, and the eccentric sleeve also rolls a circle. The cycloid wheel is rolled in the opposite direction by a tooth, which needs to be decelerated and then connected to the w output mechanism, and the speed rotation of the cycloid wheel passes through the pin shaft and is transmitted to the output. Shaft for lower output speed.
