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Structure and component composition of planetary gear reducer

Views:0     Author:WGT     Publish Time: 2021-11-15      Origin:WGT

Structure and component composition of planetary gear reducer

Planetary gear reducer: main transmission structure: planet, sun gear, outer ring gear.
For structural reasons, the planetary gear reducer has three small single-stage reducers, which generally do not exceed 10. The common reduction rate is 3.4.5.6.8.10. The reducer series generally does not exceed 3, but some are far lower than the user-defined 4-stage reducer.
Compared with other reducers, planetary reducers have high rigidity, high precision (able to complete a single stage in 1 minute), high efficiency (97% - 98%), high share of torque, lifelong protection, etc.
Because of these features, most planetary reducers are installed in stepping motors and servo motors for descending speed, improving torque and inertia matching.
The speed reducer with large external input is 18000 RPM (the size is the same as its own reducer, and the speed of reducer with large external input is small). The output torque of industrial planetary gear reducer reaches 2000Nm, especially 10000nm for large torque reducer. The working temperature is - 25 ℃ to 100 ℃, which can be changed by changing the working temperature of grease.
Series: planetary gear unit. Because planetary gears are required to meet large transmission ratio, sometimes 2 or 3 sets are required to meet the required support for larger transmission ratio. Because the number of planetary gears and gear boxes with 2 or 3-stage length increases, the progress of efficiency will be reduced.
Return distance: the additional torque will be fixed at the output and input clockwise and counterclockwise to make the input + - 2% torque. The small angular displacement and angular displacement at the input end of the gearbox are space back. The unit is "minute", which is a 60. Some people call it rebound.
Planetary cycloid pin gear reducer: all actuators can be divided into three parts: input part, slow part and output part. The input shaft is still dislocated 180 ° of the double bias sleeve. There are two roller bearings called rotating arm in the bias setting to form h tissue. The center holes of the two cycloid gears set the raceway of the upper rotating arm bearing for the bias, which is placed in a ring by the cycloid gear and pin gear set The needle teeth are meshed with each other to form the tooth difference internal meshing deceleration organization and teeth (in the reducer with small reduction conflict and ratio, the needle teeth are connected with the needle tooth sleeve) The input shaft and the migraine sleeve roll for a week. Because of the characteristics of the tooth profile curve on the cycloid wheel and the constraint of the needle teeth on the needle gear, the movement of the cycloid wheel has become these two revolutions. Some plane movements turn around the stone when the input shaft rotates, and the migraine sleeve also rolls for a week. The cycloid wheel is rolled in the opposite direction. One tooth needs to be decelerated and then combined with W output tissue to reduce the speed of the cycloid wheel The speed rotation motion passes through the pin shaft and is transmitted to the output shaft to obtain a lower output speed.

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