The maintenance cost of planetary reducers is usually higher than that of helical gear reducers, and the main reasons are as follows:
Part replacement cost
Planetary reducer: The planetary reducer has a complex structure and consists of multiple precision components such as the sun gear, planetary wheel, internal ring gear, etc. These parts may experience wear, fatigue and other problems after long-term operation. Once replaced, due to their precision and professionalism, the cost of a single component is higher. For example, the planetary wheels and sun gears of high-precision planetary reducers use high-quality alloy steel and are precision-processed and heat-treated, with high material costs and processing costs. Moreover, when changing the transmission ratio, it is often necessary to replace parts such as planetary gears or sun gears, which increases the cost of maintenance and replacement.
Helical gear reducer: The helical gear reducer generally has a relatively simple structure and is mainly composed of an input shaft, an output shaft, a helical gear, etc. The manufacturing process and accuracy requirements of these components are relatively low and the cost is relatively low. When there are problems such as wear and tear, the cost of replacing a single helical gear is usually lower than that of a planetary reducer.
Maintenance difficulty and labor cost
Planetary reducer: The internal structure of the planetary reducer is compact and has small maintenance space. Disassembly and assembly requires professional tools and technology, and has high requirements for maintenance personnel's skills. During the maintenance process, special attention should be paid to the installation accuracy and clearance adjustment of each component, otherwise it will affect the performance and service life of the reducer. Therefore, maintenance labor costs are high.
Helical gear reducer: The structure of the helical gear reducer is relatively intuitive and has relatively easy maintenance. Maintenance personnel can easily inspect and maintain gears, bearings and other components. The skills requirements for maintenance personnel are relatively low and labor costs are relatively low.
Lubrication and maintenance costs
Planetary reducer: Planetary reducer has high requirements for lubricating oil due to multiple gears meshing and high rotation speed. It usually requires the use of high-performance synthetic lubricating oil to ensure good lubrication and heat dissipation effect. High-performance synthetic lubricants are expensive and may have relatively short replacement cycles, increasing lubrication costs.
Helical gear reducer: Helical gear reducer has relatively low requirements for lubricating oil, and general industrial gear oil can meet its lubricating needs. The price of industrial gear oil is relatively low, the replacement cycle is relatively long, and the lubrication cost is relatively low.
