Characteristics and operation of planetary reducer and planetary reducer

Characteristics and operation of planetary reducer and planetary reducer
The main transmission structure of the planetary reducer is: planetary gear, sun gear and outer gear ring.Due to structural reasons, the minimum single-stage reduction of the planetary reducer is 3, and the maximum is usually no more than 10. The common reduction rate is 3.4.5.6.8.10.The number of reducer stages usually does not exceed 3, but there are some custom reducers with large reduction rates that have 4 stages of reduction
Compared with other reducers, planetary reducers have the characteristics of high rigidity, high precision (within 1 point in single stage), high transmission efficiency (97% - 98% in single stage), high torque/volume ratio, maintenance-free for life, etc. wait
Due to these characteristics, most planetary reducers are installed on stepper motors and servo motors to reduce speed, improve torque and match inertia.What should we pay attention to during use?
1. The maximum rated input speed of the reducer can reach more than 18,000 (related to the size of the reducer itself. The larger the reducer, the smaller the rated input speed).The output torque of the industrial planetary reducer usually does not exceed 2000nm, and the special super torque planetary reducer can reach more than 10000nm.The operating temperature is usually about -25°C to 100°C, and the operating temperature can be changed by changing the grease.
2. Several concepts of planetary reducer: stage: number of planetary gear sets [planetary gear: planetary gear].Since one set of planetary gears cannot satisfy a larger transmission ratio, two or three sets are sometimes required to meet the requirement of supporting a larger transmission ratio.Due to the increase in the number of sun gears, the length of the stage 2 or 3 stage reducer will increase and the efficiency will decrease.
3. Return clearance: When the output end is fixed, the input end rotates clockwise and produces a rated torque +- 2% torque at the input end counterclockwise, there is a small angular displacement at the input end of the reducer, that is, return clearance.The unit is 'minute', which is a degree of one sixty-one degrees.It is also called back off.
4. The planetary reducer is an industrial product with a wide range of uses.Its performance is comparable to that of other military reducer products, but it has the price of industrial products and is used in various industrial occasions.
5. The reducer has small size, light weight, high carrying capacity, long service life, stable operation and low noise.It features power splitting and multi-tooth engagement.The maximum input power can reach 104kW.It is suitable for WN fixed shaft transmission reducer, WN primary and secondary gear transmission reducer and elastic load small tooth difference reducer of the new planetary series in the industrial sector, such as lifting transportation, engineering machinery, metallurgy, mining, petrochemical industry, construction machinery, Light industry and textiles, medical devices, instruments, automobiles, ships, weapons and aerospace.
6. The planetary reducer is a new reducer with wide universality.Internal gears are carburized, quenched and ground by 20cvmnt.The whole machine has the characteristics of small structure size, large output torque, low speed, high efficiency, safe and reliable performance.The machine is mainly used for the slewing mechanism of the tower crane, and can also be used as the supporting part of hoisting, excavation, transportation, construction and other industries.