Planetary gear reducer
Release time:
Feb 20,2025
1. Structural principle
The planetary gear reducer is mainly composed of sun gear, planetary gear, inner gear ring and planet carrier. The sun gear is located in the center, and multiple planetary gears are evenly distributed around the sun gear and mesh with it. At the same time, the planetary gears mesh with the inner gear ring, and the planet carrier is used to support the planetary gears. When the power is input, the sun gear is usually the active part. When the sun gear rotates, the planetary gear rotates around its own axis and around the sun under the joint action of the sun gear and the inner gear ring. The planet carrier outputs power, and the purpose of deceleration is achieved through this unique structure.
2. Performance advantages
High transmission efficiency
The meshing mode of the planetary gear makes the loss in the energy transmission process small, and the transmission efficiency can reach a high level. In equipment that runs continuously for a long time, this helps to reduce energy consumption and reduce operating costs.
Large transmission ratio
A larger transmission ratio can be achieved by reasonably designing the number of planetary gears, the modulus of each gear and other parameters. It can meet the demand for a large reduction ratio in a small space, and is suitable for occasions where the speed needs to be greatly reduced and the torque needs to be increased.
High torque carrying capacity
Since multiple planetary gears share the load, the planetary gear reducer has a strong torque carrying capacity. It performs well in heavy machinery, engineering machinery and other equipment that need to handle large torque.
Compact structure
The planetary gear reducer has a compact structure. Compared with other types of reducers, it occupies less space under the same transmission ratio and torque requirements. This has great advantages for equipment installation environments with limited space.
3. Application areas
Automation equipment
In various transmission devices, robot joints and other parts of automated production lines, planetary gear reducers can provide precise transmission ratios and stable power output to ensure efficient operation of equipment.
Automotive industry
In the automatic transmission, four-wheel drive system and other parts of the car, the planetary gear reducer helps to achieve different transmission modes and torque distribution, and improve the performance of the car.
Aerospace
In the attitude control system, flight transmission device and other aspects of aerospace equipment, the planetary gear reducer provides guarantee for the normal operation of the equipment with its high reliability and high performance.
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